From 72251e34a60beb36cab6675e9047f4a5d06bc9e6 Mon Sep 17 00:00:00 2001
From: rmkaplan <69548581+rmkaplan@users.noreply.github.com>
Date: Tue, 4 Nov 2025 16:08:26 -0800
Subject: [PATCH 01/20] Fix SLASHIT bug (#2356)

---
 library/UNIXUTILS       |  13 +++++++------
 library/UNIXUTILS.DFASL | Bin 7297 -> 7320 bytes
 2 files changed, 7 insertions(+), 6 deletions(-)

diff --git a/library/UNIXUTILS b/library/UNIXUTILS
index 28ffedcf..59253a49 100644
--- a/library/UNIXUTILS
+++ b/library/UNIXUTILS
@@ -1,12 +1,12 @@
 (DEFINE-FILE-INFO PACKAGE "INTERLISP" READTABLE "INTERLISP" BASE 10)
 
-
(FILECREATED "22-Oct-2025 13:05:51" {WMEDLEY}<library>UNIXUTILS.;33
 17919  
+
(FILECREATED " 4-Nov-2025 10:11:10" {WMEDLEY}<library>UNIXUTILS.;34
 18037  
 
       :EDIT-BY rmk
 
       :CHANGES-TO (FNS SLASHIT)
 
-      :PREVIOUS-DATE "27-Sep-2025 16:25:07" {WMEDLEY}<library>UNIXUTILS.;32)
+      :PREVIOUS-DATE "22-Oct-2025 13:05:51" {WMEDLEY}<library>UNIXUTILS.;33)
 
 
 (PRETTYCOMPRINT UNIXUTILSCOMS)
@@ -240,7 +240,8 @@
                                                  0))) DO
 (BLOCK) FINALLY
 (RETURN CODE])
 
 (SLASHIT

-  [LAMBDA (X LCASEDIRS NOHOST)
                               (* ; "Edited 22-Oct-2025 13:05 by rmk")


+  [LAMBDA (X LCASEDIRS NOHOST)
                               (* ; "Edited  4-Nov-2025 10:10 by rmk")


+                                                             (* ; "Edited 22-Oct-2025 13:05 by rmk")


                                                              (* ; "Edited 25-Sep-2025 09:57 by rmk")


                                                              (* ; "Edited 23-Sep-2023 15:27 by rmk")

 
@@ -259,7 +260,7 @@
                                                       (CONS (CHARCODE /)))
                                                  (/ (SETQ LASTDIRPOS I)
                                                     (CONS C))
-                                                 (SPACE (CHARCODE (\ SPACE)))
+                                                 (SPACE (APPEND (CHARCODE (\ SPACE))))
                                                  (CONS C]
          (CL:WHEN (AND LCASEDIRS LASTDIRPOS)
              (SETQ LASTDIRPOS (ADD1 (IDIFFERENCE LASTDIRPOS DIRPOS)))
@@ -326,7 +327,7 @@
 
 (PUTPROPS UNIXUTILS
 FILETYPE
 CL:COMPILE-FILE)
 (DECLARE%: DONTCOPY
-  (FILEMAP (NIL (1110 1483 (ShellCommand 1110 . 1483)) (1485 1882 (ShellWhich 1485 . 1882)) (1972 17841 
+  (FILEMAP (NIL (1110 1483 (ShellCommand 1110 . 1483)) (1485 1882 (ShellWhich 1485 . 1882)) (1972 17959 
 (ShellBrowser 1982 . 3754) (ShellBrowse 3756 . 4441) (ShellOpener 4443 . 6131) (ShellOpen 6133 . 11612
-) (PROCESS-COMMAND 11614 . 12227) (SLASHIT 12229 . 14566) (UNIX-FILE-NAME 14568 . 17839)))))
+) (PROCESS-COMMAND 11614 . 12227) (SLASHIT 12229 . 14684) (UNIX-FILE-NAME 14686 . 17957)))))
 STOP
diff --git a/library/UNIXUTILS.DFASL b/library/UNIXUTILS.DFASL
index 8dd2444392edea8b78d57bf23c6f5d9ca6fef75a..514dfbb9e910309c2eab26709c74b23000c0916f 100644
GIT binary patch
delta 536
zcmZp)oMAb^HQt0PIKQ+gIaMJoGbdFcxhOTUBsE1r!9>?Dzf9N2z{pg=(7?*j(8|z&
z%gr&^2US@}X=-swVx^9Pi2_i0YHm_$kpf7M4pfto>BePQ%;MNgo7y8kQC*JFWV0Jf
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zNiuS%s)2>nCO?xZR+V680`r8KnZdN!%pgW)2F97eGbS^FP!BKwjVISi8!@U)-XMLB
I+5Z230Q(P_=l}o!

delta 459
zcmbPX*=RYzHPM(WIKQ+gIaMJoGbdFcxhOTUBsE3B$Vk^exkT5<z{pg=(Adhr)XLP5
z%gr&^2US^kYD!*eaY|yP4p4^zP)B}JYLNm+mkwB)nU#sj#wA(I;@Hfa+9N+vU5?Rs
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z9-x5P<in!Lj7KJ`i>WfYPxcj)5L5Ea(f=^hXSXjW0}yNw_RUfFFg1U2qnH@urpYtJ
zZYS_I0mb*ttO8LxW`f8)AYu_jWC}v08_b*ml5B&B7R;F1!|m+v=j<5b?C;_loB-sr
z$M}InjG|}s_pkt2!IK||YctN>%p<X!QC4K8EjuFv^GxO$lYxk3rYFc8MsYAHHu-|2
zG9&NeFOrNLDr#UM)yaRPidDp!nZP_DW@a!gIx~oonSpU;@QlffAk@R;ZaI01v=O7~
N<m1xknC<@m2LN;pgUSE^


From e4641d8515b7ee3c12cacbc127ca9137775ad182 Mon Sep 17 00:00:00 2001
From: Frank Halasz <frank@halasz.org>
Date: Fri, 7 Nov 2025 17:48:24 -0800
Subject: [PATCH 02/20] Lispusers package KINETIC:  add CLOSEFN to Kinetic
 window so that kinetic activity stops and window closes when CLOSEW is called
 .. (#2351)

* Add a CLOSEFN to KINETIC window that forces the kinetic to stop and exit when closew is called.

* Reset the window close flag after window is closed so that can repeatedly close and open  the KINETICWINDOW.
---
 lispusers/KINETIC      |  46 +++++++++++++++++++++--------------------
 lispusers/KINETIC.LCOM | Bin 1224 -> 1575 bytes
 2 files changed, 24 insertions(+), 22 deletions(-)

diff --git a/lispusers/KINETIC b/lispusers/KINETIC
index 48cafeaa..ce0a380b 100644
--- a/lispusers/KINETIC
+++ b/lispusers/KINETIC
@@ -1,16 +1,14 @@
 (DEFINE-FILE-INFO PACKAGE "INTERLISP" READTABLE "INTERLISP" BASE 10)
 
-
(FILECREATED "23-Sep-2022 08:19:41" {DSK}<home>larry>medley>lispusers>KINETIC.;2
 1928   
+
(FILECREATED " 1-Nov-2025 20:26:43" {DSK}<home>frank>il>medley>lispusers>KINETIC.;5
 2264   
+
+      :EDIT-BY "FGH"
 
       :CHANGES-TO (FNS KINETIC)
 
-      :PREVIOUS-DATE " 2-Apr-86 00:14:01" {DSK}<home>larry>medley>lispusers>KINETIC.;1)
+      :PREVIOUS-DATE "23-Sep-2022 08:19:41" {DSK}<home>frank>il>medley>lispusers>KINETIC.;1)
 
 
-(* ; "
-Copyright (c) 1982, 1985-1986, 2022 by Xerox Corporation.
-")
-
 (PRETTYCOMPRINT KINETICCOMS)
 
 (RPAQQ KINETICCOMS
 ((FNS KINETIC)
@@ -20,26 +18,31 @@ Copyright (c) 1982, 1985-1986, 2022 by Xerox Corporation.
 (DEFINEQ
 
 (KINETIC

-  [LAMBDA (WINDOW)
                                           (* ; "Edited 22-Sep-2022 22:07 by lmm")

+  [LAMBDA (WINDOW)
                                           (* ; "Edited  1-Nov-2025 20:23 by FGH")


+                                                             (* ; "Edited 22-Sep-2022 22:07 by lmm")

                                                              (* lmm " 3-Dec-85 14:16")

-                                                             (* test example (KINETICDEMO)
-
                                                             (SETQ CHECKSHADE (EDITSHADE CHECKSHADE)))

     [OR (WINDOWP WINDOW)
         (SETQ WINDOW (OR KINETICWINDOW (SETQ KINETICWINDOW (CREATEW NIL "Kinetic Window"]
+    [OR (WINDOWPROP WINDOW 'CLOSEFN)
+        (WINDOWPROP WINDOW 'CLOSEFN (FUNCTION (LAMBDA (W)
+                                                (WINDOWPROP W 'CLOSE T]
+    [WINDOWPROP WINDOW 'CLOSEFN (FUNCTION (LAMBDA (W)
+                                            (WINDOWPROP W 'CLOSE T]
     (PROG ((WD (WINDOWPROP WINDOW 'WIDTH))
            (HT (WINDOWPROP WINDOW 'HEIGHT))
            X Y)
-          (do
 (SETQ X (RAND 0 WD))
-              (SETQ Y (RAND 0 HT))
-              (BITBLT NIL NIL NIL WINDOW (RAND 0 (IDIFFERENCE WD X))
-                     (RAND 0 (IDIFFERENCE HT Y))
-                     X Y 'TEXTURE (SELECTQ (RAND 0 5)
-                                      (0 'PAINT)
-                                      'INVERT)
-                     (SELECTQ (AND CHECKSHADE (RAND 0 12))
-                         (0 CHECKSHADE)
-                         BLACKSHADE))
-              (BLOCK 100])
+          (while
 (NEQ (WINDOWPROP WINDOW 'CLOSE)
+                      T) do
 (SETQ X (RAND 0 WD))
+                            (SETQ Y (RAND 0 HT))
+                            (BITBLT NIL NIL NIL WINDOW (RAND 0 (IDIFFERENCE WD X))
+                                   (RAND 0 (IDIFFERENCE HT Y))
+                                   X Y 'TEXTURE (SELECTQ (RAND 0 5)
+                                                    (0 'PAINT)
+                                                    'INVERT)
+                                   (SELECTQ (AND CHECKSHADE (RAND 0 12))
+                                       (0 CHECKSHADE)
+                                       BLACKSHADE))
+                            (BLOCK 100) finally
 (WINDOWPROP WINDOW 'CLOSE NIL])
 )
 
 (RPAQQ CHECKSHADE
 63903)
@@ -47,7 +50,6 @@ Copyright (c) 1982, 1985-1986, 2022 by Xerox Corporation.
 (RPAQQ KINETICWINDOW
 NIL)
 
 (ADDTOVAR IDLE.FUNCTIONS
 (Kinetic 'KINETIC))
-(PUTPROPS KINETIC COPYRIGHT ("Xerox Corporation" 1982 1985 1986 2022))
 (DECLARE%: DONTCOPY
-  (FILEMAP (NIL (573 1723 (KINETIC 583 . 1721)))))
+  (FILEMAP (NIL (534 2130 (KINETIC 544 . 2128)))))
 STOP
diff --git a/lispusers/KINETIC.LCOM b/lispusers/KINETIC.LCOM
index e6e4c426151c89357e68ce131cb5f388584284f5..1e5025ef0ab11800b0304291a20d04bdd4ce6140 100644
GIT binary patch
literal 1575
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zs!E7Iz@f+ff}X171cyEMC-mGuz(3f&{)ot?l`15B7{4F$KJz>??~D?#K988z=Od=^
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z>i@DgjZbC^l-ee^EZ{=x?IQL5Ae6!NLoXVzOcOCE{V0P*o(gV~vTYuZGcCY91eqFI
zHa#qrQqUcjbX=3jAbr}N5mjmy@N``#;0BJQaL{3*LhGAWt99w&GaOsR*X4Mlr4Rzi
zSWI{n#FHeA6WkgL{85}Sv@U?r&jnWFBw)ZUBtT&YM*^Y1AMy;KqFWJyKA5Wwt0`gx
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t3#p-`;<sAxUvR6$1yG3i2ur*m5HZq#4Pa%ZRoNQH`1~}r<uX_({R2hbdt?9r

delta 549
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zkso+IG+X~R(zER<LOM|Pkp$Tb2!U@=#-XhNCr5l35Xb=fg!cLzng~YJ;r-iJ<(I{Q
z<PUj1G=u?Vgi{-A&p!?xl#+N9CGi)q<76Et<CA&360=<z`9cjXcP+^OLcK09>I(PT
Ce2cvR


From 428aac56ea2047c9d530d6b9fc2049d350da29f4 Mon Sep 17 00:00:00 2001
From: rmkaplan <69548581+rmkaplan@users.noreply.github.com>
Date: Fri, 14 Nov 2025 10:09:46 -0800
Subject: [PATCH 03/20] TEDIT.INSERT ends with a point selection (#2371)

---
 library/tedit/TEDIT      |  97 +++++++++++++++++++--------------------
 library/tedit/TEDIT.LCOM | Bin 33194 -> 33274 bytes
 2 files changed, 46 insertions(+), 51 deletions(-)

diff --git a/library/tedit/TEDIT b/library/tedit/TEDIT
index 95cb160a..39cb40cc 100644
--- a/library/tedit/TEDIT
+++ b/library/tedit/TEDIT
@@ -1,12 +1,12 @@
 (DEFINE-FILE-INFO PACKAGE "INTERLISP" READTABLE "INTERLISP" BASE 10)
 
-
(FILECREATED " 8-Sep-2025 22:10:20" {WMEDLEY}<library>TEDIT>TEDIT.;838
 145349 
+
(FILECREATED "13-Nov-2025 21:00:34" {WMEDLEY}<library>TEDIT>TEDIT.;844
 144838 
 
       :EDIT-BY rmk
 
-      :CHANGES-TO (FNS TEDIT.NTHCHARCODE)
+      :CHANGES-TO (FNS TEDIT.INSERT \TEDIT.INSERT)
 
-      :PREVIOUS-DATE " 6-Sep-2025 09:54:48" {WMEDLEY}<library>TEDIT>TEDIT.;837)
+      :PREVIOUS-DATE "28-Oct-2025 00:29:56" {WMEDLEY}<library>TEDIT>TEDIT.;843)
 
 
 (PRETTYCOMPRINT TEDITCOMS)
@@ -75,9 +75,9 @@
               (FNS TEDITSYSTEMDATE)
               (VARS (TEDITSYSTEMDATE (TEDITSYSTEMDATE]
         (COMS                                                (* ; 
-
                           "LISTFILES Interface, so the system can decide if a file is a TEdit file.")

-              (ADDVARS (PRINTFILETYPES (TEDIT (TEST \TEDIT.GET.TRAILER)
-                                              (EXTENSION (TEDIT])
+
                           "IMAGETYPE Interface, so the system can decide if a file is a TEdit file.")

+              (ADDVARS (PRINTFILETYPES (TEDIT (TEST TEDIT.FORMATTEDFILEP)
+                                              (EXTENSION (TEDIT TED])
 
 (FILESLOAD (SYSLOAD)
        POSTSCRIPTSTREAM PDFSTREAM WHEELSCROLL)
@@ -441,6 +441,8 @@
 (TEDIT-SEE

   [LAMBDA (FILE WINDOW FORMAT TITLE)
 
+    (* ;; "Edited 27-Oct-2025 21:25 by rmk")

+
     (* ;; 
 
  "Edited 13-Sep-2023 09:04 by rmk:  Old code replaced to take advantage of new standard interfaces.")

 
@@ -452,7 +454,8 @@
 
     (* ;; "Edited  1-Feb-88 19:00 by bvm:")

 
-    (TEXTSTREAM
 (TEDIT
 FILE WINDOW NIL `(READONLY T LEAVETTY T FONT ,DEFAULTFONT])
+    (TEXTSTREAM
 (TEDIT
 FILE WINDOW NIL `(READONLY T LEAVETTY T FONT ,DEFAULTFONT TITLE ,TITLE FORMAT
+                                               ,FORMAT])
 
 (TEDIT.COPY

   [LAMBDA (FROM
 TO
)
                                          (* ; "Edited  2-Dec-2024 09:02 by rmk")


@@ -506,7 +509,8 @@
          (\TEDIT.DELETE
 TSTREAM SEL])
 
 (TEDIT.INSERT

-  [LAMBDA (TSTREAM TEXT CH#ORSEL LOOKS DONTSCROLL)
           (* ; "Edited  4-Apr-2025 11:22 by rmk")


+  [LAMBDA (TSTREAM TEXT CH#ORSEL LOOKS DONTSCROLL)
           (* ; "Edited 13-Nov-2025 20:58 by rmk")


+                                                             (* ; "Edited  4-Apr-2025 11:22 by rmk")


                                                              (* ; "Edited  2-Aug-2024 22:17 by rmk")


                                                              (* ; "Edited 31-Jul-2024 12:13 by rmk")


                                                              (* ; "Edited 23-Jul-2024 16:35 by rmk")


@@ -531,7 +535,7 @@
 
                (* ;; "Nothing to do for an empty string")

 
-               (LET ((TEXTOBJ
 (fetch
 (TEXTSTREAM
 TEXTOBJ) of
 TSTREAM)))
+               (LET ((TEXTOBJ
 (FTEXTOBJ TSTREAM)))
                     (if
 (FIXP CH#ORSEL)
                         then
 (TEDIT.SETSEL TEXTOBJ CH#ORSEL 1 'LEFT) 
                                                              (* ; "He gave us a ch# to insert before")

@@ -540,14 +544,8 @@
                         then
 (SETQ CH#ORSEL (TEXTSEL TEXTOBJ)))
                     (SELECTION! CH#ORSEL)
                     (if
 (FGETSEL CH#ORSEL SET)
-                        then
 (\TEDIT.INSERT
 TEXT CH#ORSEL TSTREAM DONTSCROLL)
-                             (CL:WHEN LOOKS
-
-                                 (* ;; "TEXTSEL now selects the insertion, apply the looks, but don't keep the looks-change as a separate event.  We want it to behave as if the looks had been applied to the TEXT before the insertion (e.g. converting first to SELPIECES).")

-
-                                 (LET ((HISTORY (FGETTOBJ TEXTOBJ TXTHISTORY)))
-                                      (\TEDIT.CHANGE.CHARLOOKS TSTREAM LOOKS)
-                                      (FSETTOBJ TEXTOBJ TXTHISTORY HISTORY)))
+                        then
 (CL:WHEN LOOKS (TEDIT.CARETLOOKS TSTREAM LOOKS))
+                             (\TEDIT.INSERT
 TEXT CH#ORSEL TSTREAM DONTSCROLL)
                       else
 (TEDIT.PROMPTPRINT TEXTOBJ "Please select a place for the insertion." T))))
         ])
 
@@ -1240,7 +1238,8 @@
                 (T TSTREAM)))])
 
 (\TEDIT.INSERT

-  [LAMBDA (INSERT SEL TSTREAM DONTSCROLL TYPEIN)
             (* ; "Edited  7-May-2025 00:11 by rmk")


+  [LAMBDA (INSERT SEL TSTREAM DONTSCROLL TYPEIN)
             (* ; "Edited 13-Nov-2025 20:57 by rmk")


+                                                             (* ; "Edited  7-May-2025 00:11 by rmk")


                                                              (* ; "Edited 21-Apr-2025 20:16 by rmk")


                                                              (* ; "Edited 20-Apr-2025 13:26 by rmk")


                                                              (* ; "Edited  6-Apr-2025 14:12 by rmk")


@@ -1311,14 +1310,10 @@
 
          (* ;; "Set the caret so that the next insertion should also come in front of that (now displaced) character, and then update the screen.")

 
-         (* ;; "If typein, the new selection is a point selection, if from a function e.g. TEDIT.INSERT, the insertion is selected/underlined. TEDIT.INSERT can then apply the looks, if specified.")

-
-               (if
 TYPEIN
-                   then
 (\TEDIT.UPDATE.SEL SEL (SUB1 (IPLUS CARETCHNO NCHARSADDED))
-                               0
-                               'RIGHT
-                               'NORMAL)
-                 else
 (\TEDIT.UPDATE.SEL SEL CARETCHNO NCHARSADDED 'RIGHT 'NORMAL))
+               (\TEDIT.UPDATE.SEL SEL (SUB1 (IPLUS CARETCHNO NCHARSADDED))
+                      0
+                      'RIGHT
+                      'NORMAL)
                (CL:UNLESS DONTSCROLL
 
                    (* ;; "All the panes must be updated.  SELPANE mayalso need to be scrolled to make the caret visible for the next input.")

@@ -2320,32 +2315,32 @@
 
 
 
-(* ; "LISTFILES Interface, so the system can decide if a file is a TEdit file.")

+(* ; "IMAGETYPE Interface, so the system can decide if a file is a TEdit file.")

 
 
-(ADDTOVAR PRINTFILETYPES
 (TEDIT (TEST \TEDIT.GET.TRAILER)
-                                (EXTENSION (TEDIT))))
+(ADDTOVAR PRINTFILETYPES
 (TEDIT (TEST TEDIT.FORMATTEDFILEP)
+                                (EXTENSION (TEDIT TED))))
 (DECLARE%: DONTCOPY
-  (FILEMAP (NIL (4823 7217 (MAKE-TEDIT-EXPORTS.ALL 4833 . 5379) (UPDATE-TEDIT 5381 . 6310) (EDIT-TEDIT 
-6312 . 7215)) (8647 36705 (TEDIT 8657 . 11271) (TEXTSTREAM 11273 . 13162) (TEXTSTREAMP 13164 . 13548) 
-(COERCETEXTSTREAM 13550 . 17761) (TEDIT.CONCAT 17763 . 21065) (TEDITSTRING 21067 . 21981) (TEDIT-SEE 
-21983 . 22542) (TEDIT.COPY 22544 . 24689) (TEDIT.DELETE 24691 . 26052) (TEDIT.INSERT 26054 . 29428) (
-TEDIT.TERPRI 29430 . 30544) (TEDIT.KILL 30546 . 31528) (TEDIT.QUIT 31530 . 32896) (TEDIT.MOVE 32898 . 
-33786) (TEDIT.STRINGWIDTH 33788 . 34459) (TEDIT.CHARWIDTH 34461 . 36703)) (36706 38647 (TEXTOBJ 36716
- . 37181) (COERCETEXTOBJ 37183 . 38645)) (40047 41697 (TDRIBBLE 40057 . 41695)) (41738 53634 (
-TEDIT.INSERT.OBJECT 41748 . 45455) (TEDIT.EDIT.OBJECT 45457 . 48397) (TEDIT.OBJECT.CHANGED 48399 . 
-51589) (TEDIT.MAP.OBJECTS 51591 . 53162) (\TEDIT.FIRST.OBJPIECE 53164 . 53397) (\TEDIT.NEXT.OBJPIECE 
-53399 . 53632)) (53657 61100 (\TEDIT.CONCAT.PAGEFRAMES 53667 . 58734) (\TEDIT.GET.PAGE.HEADINGS 58736
- . 59765) (\TEDIT.CONCAT.INSTALL.HEADINGS 59767 . 61098)) (61101 64708 (\TEDIT.MOVE.MSG 61111 . 63192)
- (\TEDIT.READONLY 63194 . 64706)) (64709 70600 (TEDIT.NCHARS 64719 . 65092) (TEDIT.RPLCHARCODE 65094
- . 68084) (TEDIT.NTHCHARCODE 68086 . 70129) (TEDIT.NTHCHAR 70131 . 70598)) (70646 127675 (\TEDIT1 
-70656 . 72733) (\TEDIT.INSERT 72735 . 79100) (\TEDIT.MOVE 79102 . 87008) (\TEDIT.COPY 87010 . 91541) (
-\TEDIT.REPLACE.SELPIECES 91543 . 96079) (\TEDIT.INSERT.SELPIECES 96081 . 99078) (\TEDIT.RESTARTFN 
-99080 . 101585) (\TEDIT.CHARDELETE 101587 . 104516) (\TEDIT.COPYPIECE 104518 . 109680) (
-\TEDIT.APPLY.OBJFN 109682 . 112768) (\TEDIT.DELETE 112770 . 117138) (\TEDIT.DIFFUSE.PARALOOKS 117140
- . 119411) (\TEDIT.WORDDELETE 119413 . 121028) (\TEDIT.WORDDELETE.FORWARD 121030 . 122819) (
-\TEDIT.FINISHEDIT? 122821 . 127673)) (127676 128335 (\TEDIT.THELP 127686 . 128333)) (128369 137500 (
-\TEDIT.PARAPIECES 128379 . 130353) (\TEDIT.PARACHNOS 130355 . 131247) (\TEDIT.PARA.FIRST 131249 . 
-134350) (\TEDIT.PARA.LAST 134352 . 137498)) (137501 144596 (\TEDIT.WORD.FIRST 137511 . 141515) (
-\TEDIT.WORD.LAST 141517 . 144594)) (144797 145074 (TEDITSYSTEMDATE 144807 . 145072)))))
+  (FILEMAP (NIL (4838 7232 (MAKE-TEDIT-EXPORTS.ALL 4848 . 5394) (UPDATE-TEDIT 5396 . 6325) (EDIT-TEDIT 
+6327 . 7230)) (8662 36440 (TEDIT 8672 . 11286) (TEXTSTREAM 11288 . 13177) (TEXTSTREAMP 13179 . 13563) 
+(COERCETEXTSTREAM 13565 . 17776) (TEDIT.CONCAT 17778 . 21080) (TEDITSTRING 21082 . 21996) (TEDIT-SEE 
+21998 . 22682) (TEDIT.COPY 22684 . 24829) (TEDIT.DELETE 24831 . 26192) (TEDIT.INSERT 26194 . 29163) (
+TEDIT.TERPRI 29165 . 30279) (TEDIT.KILL 30281 . 31263) (TEDIT.QUIT 31265 . 32631) (TEDIT.MOVE 32633 . 
+33521) (TEDIT.STRINGWIDTH 33523 . 34194) (TEDIT.CHARWIDTH 34196 . 36438)) (36441 38382 (TEXTOBJ 36451
+ . 36916) (COERCETEXTOBJ 36918 . 38380)) (39782 41432 (TDRIBBLE 39792 . 41430)) (41473 53369 (
+TEDIT.INSERT.OBJECT 41483 . 45190) (TEDIT.EDIT.OBJECT 45192 . 48132) (TEDIT.OBJECT.CHANGED 48134 . 
+51324) (TEDIT.MAP.OBJECTS 51326 . 52897) (\TEDIT.FIRST.OBJPIECE 52899 . 53132) (\TEDIT.NEXT.OBJPIECE 
+53134 . 53367)) (53392 60835 (\TEDIT.CONCAT.PAGEFRAMES 53402 . 58469) (\TEDIT.GET.PAGE.HEADINGS 58471
+ . 59500) (\TEDIT.CONCAT.INSTALL.HEADINGS 59502 . 60833)) (60836 64443 (\TEDIT.MOVE.MSG 60846 . 62927)
+ (\TEDIT.READONLY 62929 . 64441)) (64444 70335 (TEDIT.NCHARS 64454 . 64827) (TEDIT.RPLCHARCODE 64829
+ . 67819) (TEDIT.NTHCHARCODE 67821 . 69864) (TEDIT.NTHCHAR 69866 . 70333)) (70381 127158 (\TEDIT1 
+70391 . 72468) (\TEDIT.INSERT 72470 . 78583) (\TEDIT.MOVE 78585 . 86491) (\TEDIT.COPY 86493 . 91024) (
+\TEDIT.REPLACE.SELPIECES 91026 . 95562) (\TEDIT.INSERT.SELPIECES 95564 . 98561) (\TEDIT.RESTARTFN 
+98563 . 101068) (\TEDIT.CHARDELETE 101070 . 103999) (\TEDIT.COPYPIECE 104001 . 109163) (
+\TEDIT.APPLY.OBJFN 109165 . 112251) (\TEDIT.DELETE 112253 . 116621) (\TEDIT.DIFFUSE.PARALOOKS 116623
+ . 118894) (\TEDIT.WORDDELETE 118896 . 120511) (\TEDIT.WORDDELETE.FORWARD 120513 . 122302) (
+\TEDIT.FINISHEDIT? 122304 . 127156)) (127159 127818 (\TEDIT.THELP 127169 . 127816)) (127852 136983 (
+\TEDIT.PARAPIECES 127862 . 129836) (\TEDIT.PARACHNOS 129838 . 130730) (\TEDIT.PARA.FIRST 130732 . 
+133833) (\TEDIT.PARA.LAST 133835 . 136981)) (136984 144079 (\TEDIT.WORD.FIRST 136994 . 140998) (
+\TEDIT.WORD.LAST 141000 . 144077)) (144280 144557 (TEDITSYSTEMDATE 144290 . 144555)))))
 STOP
diff --git a/library/tedit/TEDIT.LCOM b/library/tedit/TEDIT.LCOM
index 3f9c88b3f9cd04eba04719f3982fae95f38ec779..bcfdf700b92e4552bfe92b97e4f9e8a4793a22cb 100644
GIT binary patch
delta 1035
zcmb7@zi-n(6vyL05ecmn`h$>84@<PMP$K_0JB|@j?8IqZTsul!3K9$@F(hrFrL7QB
zkt$IMi2?EB1_mS+Hab;dL@i<iF(Dzr0OC*R!otLzowg~kaKqX6?(V(!{k(Ut)}z1H
zqmQQt1u5e!+|G!+D1#_yJg-UU$(*=`5C?I#dza5^yr9Vf3s;x?`ofLH*1X>U|IXsl
z@@Wk`vt)T$%c+@F4=x{AwQd4ip0aJ|_Lj|NS!m3x5Ep-k5w%fXV7Yj@Y}sb9YU;!v
z97tw2Rs4owV+etOkSeLzXGYHbD+dm=O4Ynzxl^@FiFgB6R5NaUCDctsi+N2}Scu~-
z2BJu6|6soLGb-L1OjWK&$S4N0(H!0zz0@3|QzDX<B?920SMx}&lYrC^2N56%P<E@6
zx(9@>XL+^>?ZZQvD1MOY#a8lc^c{omCzZZOdf;ky=jmqT9^S~O@TX*nJ5hXAD8^}w
zZQUr8f{=;v1!`y=qjRE3f(vRM?{GtD<qz(HqIAkq)T^dvyYBfK2)v3Po~*B-Jk(4A
z*Rx!Q(Br#TQmDo?CO{Cy?j3=MAUcB`UIN=Jd!X*yaw>EXDEZxk1Of=E1Z-vApIP={
z*`N38EA8pj=aJE5A`<D*k5DBa1|w8_^k^Xfu@Qc#iTQ~OW)ja9jx!(IcMG?e<IRTA
z3|MUI*2I^&ud|pj2Cm6QP$O%ivo#+0eLoz0cAhs|Mzhh^Lt|~1UdN0e48<pt8g&}B
zR;;?Voegk-EbiOK-DyG#P+r1suM8bRIR&3`2KtdK?p+O!v^R|zM&=2JJ-9M2?6M%8
zp+MN56g$fC;Lz?Mo)!7!SSc5?CiOAXyHqi8WwmuCd`4jdk$?IcDjcLq1x%+#J*0yZ
Vw94)8t1o)ce_Y_mh&z@Y{|!&Q1QY-O

delta 947
zcmZ`%J#5oJ6pk%gDW;&bb?MLah(t+{V)^I%JH>IF+Lap@+kqmnKpWAt(3X|~iHb^e
z0v6yZ*jU(L0l8wUy0ElcH`v)JVq@ZL6B>kg!@axr?tS;Z@7~XC`t3IT>?#XdC2X%%
zL|&9Z6b*qlME?1*xFu<2V2Zt2fn+s97K?Cmy*<BrXRUL)y#Vd|YwH^q42bNy8*$CZ
zu^cn7{JIUD6(}}Zo(H`k9LE)5;l@2u`7gR|@M5vdlp3xFwiVbW0foPM=yq5Hd_+NB
z(m+76gmk<@O-enFm%*3~>?^L{3M+L2Lr|0xp1f|z$Us_#a!OLm4CXdQ;{p295LLoQ
z?098yBDH}Wv3#-=awSP6Ea##yBAv~EBxamRzp*h=p&0=jH;nw?8sPS*OYhP6{irhh
z#7xVVj^l^b{sib?4ClwD(0Q{~t*7wTF6$gPgA`S@nB;=vvW{DDR+D|_bg~u}$?JlK
zuyBc`6#Q*+f)!*Qu4kIN&Cm`a&_(=lY<^CXAhbQ(id?@5f{1!gLPo%^O@qKIJsDk3
znI#EL1<!6ops0`$CHz28wfOP)*U5_`g<P)BOnDr#xuxS5AL#ySO7LCgk`VO+?^H|F
zVZ2wpOKsKC^nU%7=}v!M{<8Fl_*)69bUD+PZ1=60ucc>qI@M&~bTY9fQg{5ai?W-~
zc8MagsCP98t-$v@&N2f#0$DhT+u(6T2&60BtF75&AUMx$+94oS$KPj%&mq)PLMj>!
zK$3zlS4QHqmP5&c(4&^jqd#&XO^56Q61|ZsLDLUrOb?Kvy?I(!^B$QAGS7C1cOG<x
get+4N9dS`$l5l_rH;3cW=Ig%y<nm==Ow;w4U)lKP#{d8T


From defd68a89208660f4d3e72f9a25ef37d657e9acc Mon Sep 17 00:00:00 2001
From: Matt Heffron <heffron@alumni.caltech.edu>
Date: Mon, 17 Nov 2025 10:44:23 -0800
Subject: [PATCH 04/20] READ-BDF initial changes for XCCS to MCCS (#2360)

* Verbose mode (READ-BDF) was implemented incorrectly - fixed
* Cleanup DEFPACKAGE in source file using :IMPORT-FROM, and fewer imports.
* Various renaming for consistency with XCCS -> MCCS changes.
* Use IL:FONTSPEC record instead of using FIRST, SECOND, etc.
* Fix the parsing of IL:FONTSPEC to use COMPRESSED instead of incorrect CONDENSED.
* Zero-width "image" with zero-width "escapement" GLYPHS now get put into NOMAPPINGCHARSET.
* Add (FILES (SYSLOAD) SYSEDIT) under existing (DECLARE: EVAL@COMPILE DONTCOPY ...)
---
 lispusers/READ-BDF       | 197 ++++++++++++++++++++++-----------------
 lispusers/READ-BDF.DFASL | Bin 20898 -> 21485 bytes
 lispusers/READ-BDF.TEDIT | Bin 9640 -> 9819 bytes
 3 files changed, 111 insertions(+), 86 deletions(-)

diff --git a/lispusers/READ-BDF b/lispusers/READ-BDF
index 229d59d0..a4c28123 100644
--- a/lispusers/READ-BDF
+++ b/lispusers/READ-BDF
@@ -1,17 +1,19 @@
 (DEFINE-FILE-INFO PACKAGE (DEFPACKAGE "BDF" (USE "XCL" "LISP") (EXPORT "READ-BDF" 
-"WRITE-BDF-TO-DISPLAYFONT-FILES") (IMPORT \AVGCHARWIDTH \FGETWIDTH \FONTFACE \FONTFILENAME 
-\FSETOFFSET \FSETWIDTH \FONTSYMBOL \GETSTREAM \INSTALLCHARSETINFO \PUTBASE BITBLT BITMAPCREATE 
-BITMAPHEIGHT BITMAPWIDTH BLACKSHADE BLTSHADE BOLD CONDENSED CHARSETINFO DISPLAY FONTDESCRIPTOR FONTP 
-FONTPROP INPUT ITALIC LIGHT LRSH MEDIUM REGULAR TCONC UTOXCODE UTOXCODE? WRITESTRIKEFONTFILE)) 
-READTABLE "XCL" BASE 10)
+"WRITE-BDF-TO-DISPLAYFONT-FILES") (IMPORT-FROM "IL" "BITBLT" "BITMAPCREATE" "BITMAPHEIGHT" 
+"BITMAPWIDTH" "BLACKSHADE" "BLTSHADE" "BOLD" "COMPRESSED" "CHARSETINFO" "DISPLAY" "FONTDESCRIPTOR" 
+"FONTP" "FONTPROP" "INPUT" "ITALIC" "LIGHT" "LRSH" "MEDIUM" "REGULAR" "TCONC" "UTOMCODE" "UTOMCODE?" 
+"WRITESTRIKEFONTFILE")) READTABLE "XCL" BASE 10)
 
-
(IL:FILECREATED "30-Apr-2025 13:20:10" IL:|{DSK}<home>matt>Interlisp>medley>lispusers>READ-BDF.;61|
 47500  
+
(IL:FILECREATED " 6-Nov-2025 23:10:51" IL:|{DSK}<home>matt>Interlisp>medley>lispusers>READ-BDF.;13|
 49101  
 
       :EDIT-BY "mth"
 
-      :CHANGES-TO (IL:FUNCTIONS GET-FAMILY-FACE-SIZE-FROM-NAME)
+      :CHANGES-TO (IL:FUNCTIONS BDF-TO-FONTDESCRIPTOR BDF-TO-CHARSETINFO READ-GLYPH 
+                         WRITE-BDF-TO-DISPLAYFONT-FILES)
+                  (FILE-ENVIRONMENTS "READ-BDF")
+                  (IL:VARS IL:READ-BDFCOMS)
 
-      :PREVIOUS-DATE "25-Apr-2025 10:10:08" IL:|{DSK}<home>matt>Interlisp>medley>lispusers>READ-BDF.;60|
+      :PREVIOUS-DATE " 6-Nov-2025 22:43:21" IL:|{DSK}<home>matt>Interlisp>medley>lispusers>READ-BDF.;9|
 )
 
 
@@ -23,8 +25,10 @@ FONTPROP INPUT ITALIC LIGHT LRSH MEDIUM REGULAR TCONC UTOXCODE UTOXCODE? WRITEST
            (IL:FUNCTIONS BDF-TO-CHARSETINFO BDF-TO-FONTDESCRIPTOR GET-FAMILY-FACE-SIZE-FROM-NAME 
                   GLYPHS-BY-CHARSET PACKFILENAME.STRING READ-BDF READ-DELIMITED-LIST-FROM-STRING 
                   READ-GLYPH SPLIT-FONT-NAME WRITE-BDF-TO-DISPLAYFONT-FILES)
-           (IL:DECLARE\: IL:EVAL@COMPILE IL:DONTCOPY (IL:FILES (IL:LOADCOMP)
-                                                            IL:FONT))
+           (IL:DECLARE\: IL:EVAL@COMPILE IL:DONTCOPY (IL:FILES (IL:SYSLOAD)
+                                                            IL:SYSEDIT)
+                  (IL:FILES (IL:LOADCOMP)
+                         IL:FONT))
            (FILE-ENVIRONMENTS "READ-BDF")
            (IL:PROP (IL:DATABASE)
                   IL:READ-BDF)))
@@ -40,10 +44,10 @@ FONTPROP INPUT ITALIC LIGHT LRSH MEDIUM REGULAR TCONC UTOXCODE UTOXCODE? WRITEST
    (SLUG NIL :TYPE GLYPH))
 
 (DEFSTRUCT GLYPH

-   "This is an individual BDF glyph. Includes some values calculted for creating CHARSETINFO"
+   "This is an individual BDF glyph. Includes some values calculated for creating CHARSETINFO"
    (NAME NIL :TYPE STRING)
    ENCODING SWIDTH DWIDTH SWIDTH1 DWIDTH1 VVECTOR BBW BBH BBXOFF0 BBYOFF0 BITMAP
-   (XCODE 0 :TYPE INTEGER)
+   (MCODE 0 :TYPE INTEGER)
    (WIDTH 0 :TYPE INTEGER)
    (ASCENT 0 :TYPE INTEGER)
    (DESCENT 0 :TYPE INTEGER))
@@ -55,6 +59,7 @@ FONTPROP INPUT ITALIC LIGHT LRSH MEDIUM REGULAR TCONC UTOXCODE UTOXCODE? WRITEST
 (DEFCONSTANT NOMAPPINGCHARSET
 (1+ MAXCHARSET))
 
 (DEFUN BDF-TO-CHARSETINFO
 (FONT CSET SLUG-OR-WIDTH &OPTIONAL MAP-UNKNOWN-TO-PRIVATE)

+                                                      (IL:* IL:\; "Edited  6-Nov-2025 17:30 by mth")


                                                       (IL:* IL:\; "Edited 23-Apr-2025 17:53 by mth")


                                                       (IL:* IL:\; "Edited 21-Apr-2025 16:23 by mth")


                                                       (IL:* IL:\; "Edited 30-Jan-2025 16:40 by mth")

@@ -98,7 +103,7 @@ FONTPROP INPUT ITALIC LIGHT LRSH MEDIUM REGULAR TCONC UTOXCODE UTOXCODE? WRITEST
                     ((INTEGERP SLUG-OR-WIDTH)
                      (SETQ SLUGWIDTH SLUG-OR-WIDTH))
                     (T (ERROR "Invalid SLUG-OR-WIDTH: ~S" SLUG-OR-WIDTH)))
-                 (SETQ CSGLYPHS (LOOP :FOR XGL :IN CSGLYPHS :COLLECT (LET* ((XCODE (CAR XGL))
+                 (SETQ CSGLYPHS (LOOP :FOR XGL :IN CSGLYPHS :COLLECT (LET* ((MCODE (CAR XGL))
                                                                             (GL (CDR XGL))
                                                                             (GWIDTH (GLYPH-WIDTH
                                                                                      GL))
@@ -112,13 +117,13 @@ FONTPROP INPUT ITALIC LIGHT LRSH MEDIUM REGULAR TCONC UTOXCODE UTOXCODE? WRITEST
 
                                                                           
 
                                                              "Is the above statement actually true?")

 
-                                                                           (SETF (GLYPH-XCODE GL)
-                                                                                 XCODE)
+                                                                           (SETF (GLYPH-MCODE GL)
+                                                                                 MCODE)
                                                                            (SETQ FIRSTCHAR
-                                                                                 (MIN FIRSTCHAR XCODE
+                                                                                 (MIN FIRSTCHAR MCODE
                                                                                       ))
                                                                            (SETQ LASTCHAR
-                                                                                 (MAX LASTCHAR XCODE)
+                                                                                 (MAX LASTCHAR MCODE)
                                                                                  )
                                                                            (INCF TOTAL-WIDTH GWIDTH)
                                                                            (SETQ ASCENT
@@ -133,13 +138,13 @@ FONTPROP INPUT ITALIC LIGHT LRSH MEDIUM REGULAR TCONC UTOXCODE UTOXCODE? WRITEST
                  (IL:* IL:|;;| 
 
               "Initialize the offsets to the TOTAL-WIDTH (without the SLUG. It will be added later)")

 
-                 (IL:|for|
 I IL:|from|
 0 IL:|to|
 (+ MAXTHINCHAR 2) IL:|do|
 (\\FSETOFFSET OFFSETS I 
+                 (IL:|for|
 I IL:|from|
 0 IL:|to|
 (+ MAXTHINCHAR 2) IL:|do|
 (IL:\\FSETOFFSET OFFSETS I
                                                                                   TOTAL-WIDTH))
                  (SETQ WIDTHS (IL:|fetch|
 (CHARSETINFO IL:WIDTHS) IL:|of|
 CSINFO))
 
                  (IL:* IL:|;;| "Initialize the widths to SLUGWIDTH")

 
-                 (IL:|for|
 I IL:|from|
 0 IL:|to|
 (+ MAXTHINCHAR 2) IL:|do|
 (\\FSETWIDTH WIDTHS I 
+                 (IL:|for|
 I IL:|from|
 0 IL:|to|
 (+ MAXTHINCHAR 2) IL:|do|
 (IL:\\FSETWIDTH WIDTHS I 
                                                                                   SLUGWIDTH))
                  (IL:|replace|
 (CHARSETINFO IL:IMAGEWIDTHS) IL:|of|
 CSINFO IL:|with|
 WIDTHS)
 
@@ -151,19 +156,19 @@ FONTPROP INPUT ITALIC LIGHT LRSH MEDIUM REGULAR TCONC UTOXCODE UTOXCODE? WRITEST
                  (SETQ BMAP (BITMAPCREATE (+ TOTAL-WIDTH SLUGWIDTH)
                                    HEIGHT 1))
                  (IL:|replace|
 (CHARSETINFO IL:CHARSETBITMAP) IL:|of|
 CSINFO IL:|with|
 BMAP)
-                 (LOOP :FOR GL :IN CSGLYPHS :WITH GLBM :WITH GLW :WITH XCODE :DO (SETQ GLBM
+                 (LOOP :FOR GL :IN CSGLYPHS :WITH GLBM :WITH GLW :WITH MCODE :DO (SETQ GLBM
                                                                                        (GLYPH-BITMAP
                                                                                         GL))
                        (SETQ GLW (GLYPH-WIDTH GL))
-                       (SETQ XCODE (GLYPH-XCODE GL))
+                       (SETQ MCODE (GLYPH-MCODE GL))
                        (BITBLT GLBM 0 0 BMAP (+ DLEFT (MAX 0 (GLYPH-BBXOFF0 GL)))
                               (+ DESCENT (GLYPH-BBYOFF0 GL))
                               (BITMAPWIDTH GLBM)
                               (BITMAPHEIGHT GLBM)
                               'INPUT
                               'IL:REPLACE)
-                       (\\FSETOFFSET OFFSETS XCODE DLEFT)
-                       (\\FSETOFFSET WIDTHS XCODE GLW)
+                       (IL:\\FSETOFFSET OFFSETS MCODE DLEFT)
+                       (IL:\\FSETOFFSET WIDTHS MCODE GLW)
                        (INCF DLEFT GLW))
 
                  (IL:* IL:|;;| "Now insert the SLUG glyph into the BMAP, or make a slug (block)")

@@ -185,6 +190,7 @@ FONTPROP INPUT ITALIC LIGHT LRSH MEDIUM REGULAR TCONC UTOXCODE UTOXCODE? WRITEST
 
 (DEFUN BDF-TO-FONTDESCRIPTOR
 (BDFONT FAMILY SIZE FACE ROTATION DEVICE &OPTIONAL 
                                     MAP-UNKNOWN-TO-PRIVATE RAW-UNICODE-MAPPING)

+                                                      (IL:* IL:\; "Edited  5-Nov-2025 16:09 by mth")


                                                       (IL:* IL:\; "Edited 21-Apr-2025 16:03 by mth")


                                                       (IL:* IL:\; "Edited 30-Jan-2025 21:27 by mth")

    (WHEN (AND (BDF-FONT-P BDFONT)
@@ -200,18 +206,22 @@ FONTPROP INPUT ITALIC LIGHT LRSH MEDIUM REGULAR TCONC UTOXCODE UTOXCODE? WRITEST
                                  (OR DEVICE (FONTPROP FAMILY 'IL:DEVICE))
                                  MAP-UNKNOWN-TO-PRIVATE)))
               (WHEN (LISTP FAMILY)
-                  (RETURN (BDF-TO-FONTDESCRIPTOR
 BDFONT (FIRST FAMILY)
-                                 (OR (SECOND FAMILY)
+
+                  (IL:* IL:|;;| "Assume this is a FONTSPEC")

+
+                  (RETURN (BDF-TO-FONTDESCRIPTOR
 BDFONT (IL:|fetch|
 (IL:FONTSPEC IL:FSFAMILY)
+                                                           IL:|of|
 FAMILY)
+                                 (OR (IL:|fetch|
 (IL:FONTSPEC IL:FSSIZE) IL:|of|
 FAMILY)
                                      SIZE)
-                                 (OR (THIRD FAMILY)
+                                 (OR (IL:|fetch|
 (IL:FONTSPEC IL:FSFACE) IL:|of|
 FAMILY)
                                      FACE "MRR")
-                                 (OR (FOURTH FAMILY)
+                                 (OR (IL:|fetch|
 (IL:FONTSPEC IL:FSROTATION) IL:|of|
 FAMILY)
                                      ROTATION 0)
-                                 (OR (FIFTH FAMILY)
+                                 (OR (IL:|fetch|
 (IL:FONTSPEC IL:FSDEVICE) IL:|of|
 FAMILY)
                                      DEVICE
                                      'DISPLAY)
                                  MAP-UNKNOWN-TO-PRIVATE)))
-              (SETQ FAMILY (\\FONTSYMBOL FAMILY))
+              (SETQ FAMILY (IL:\\FONTSYMBOL FAMILY))
               (UNLESS (AND (INTEGERP SIZE)
                            (PLUSP SIZE))
                      (ERROR "Invalid SIZE: ~S~%" SIZE))
@@ -236,7 +246,7 @@ FONTPROP INPUT ITALIC LIGHT LRSH MEDIUM REGULAR TCONC UTOXCODE UTOXCODE? WRITEST
                             (INTERN (STRING-UPCASE DEVICE)
                                    "IL"))
                            (T (IL:\\ILLEGAL.ARG DEVICE))))
-              (SETQ FACE (\\FONTFACE FACE NIL DEV))
+              (SETQ FACE (IL:\\FONTFACE FACE NIL DEV))
               (SETQ GBCSL (GLYPHS-BY-CHARSET
 BDFONT MAP-UNKNOWN-TO-PRIVATE RAW-UNICODE-MAPPING))
               (UNLESS SLUGWIDTH
 
@@ -268,15 +278,16 @@ FONTPROP INPUT ITALIC LIGHT LRSH MEDIUM REGULAR TCONC UTOXCODE UTOXCODE? WRITEST
                                                                       GBCS CSET (OR SLUG (1+ 
                                                                                             SLUGWIDTH
                                                                                              ))))
-                                                        (\\INSTALLCHARSETINFO FONTDESC CSINFO CSET)
+                                                        (IL:\\INSTALLCHARSETINFO FONTDESC CSINFO CSET
+                                                               )
                                                         (LIST CSET)))))
                            (LIST FONTDESC CHARSETS))))
                     (RETURN (VALUES-LIST (NCONC (GBCS-TO-FONTDESC (FIRST GBCSL)
                                                        FAMILY)
                                                 (GBCS-TO-FONTDESC (SECOND GBCSL)
-                                                       (\\FONTSYMBOL (CONCATENATE 'STRING
-                                                                            (SYMBOL-NAME FAMILY)
-                                                                            "-UNMAPPED")))
+                                                       (IL:\\FONTSYMBOL (CONCATENATE 'STRING
+                                                                               (SYMBOL-NAME FAMILY)
+                                                                               "-UNMAPPED")))
                                                 (LIST (ASSOC NOMAPPINGCHARSET (FIRST GBCSL)
                                                              :TEST
                                                              #'EQL)))))))))
@@ -311,8 +322,8 @@ FONTPROP INPUT ITALIC LIGHT LRSH MEDIUM REGULAR TCONC UTOXCODE UTOXCODE? WRITEST
                                                          '((#\R . REGULAR)
                                                            (#\N . REGULAR)
                                                            (#\B . BOLD)
-                                                           (#\S . CONDENSED)
-                                                           (#\C . CONDENSED)))))
+                                                           (#\S . COMPRESSED)
+                                                           (#\C . COMPRESSED)))))
                               'REGULAR))                     (IL:* IL:\; 
 
                                                 "S is for \"SemiCondensed\", Assuming \"Condensed\"")

 
@@ -336,17 +347,19 @@ FONTPROP INPUT ITALIC LIGHT LRSH MEDIUM REGULAR TCONC UTOXCODE UTOXCODE? WRITEST
                     (FIRST (BF-SIZE BDFONT))))))
 
 (DEFUN GLYPHS-BY-CHARSET
 (FONT &OPTIONAL MAP-UNKNOWN-TO-PRIVATE RAW-UNICODE-MAPPING)

+                                                      (IL:* IL:\; "Edited  6-Nov-2025 18:11 by mth")


+                                                      (IL:* IL:\; "Edited  5-Nov-2025 16:18 by mth")


                                                       (IL:* IL:\; "Edited 21-Apr-2025 15:48 by mth")


                                                       (IL:* IL:\; "Edited  9-Jan-2025 11:23 by mth")

    (LET* ((NCSETS (+ MAXCHARSET 2))
           (CSETS (MAKE-ARRAY NCSETS :INITIAL-CONTENTS (LOOP :REPEAT NCSETS :COLLECT (CONS NIL))))
-          (UTOXFN (COND
+          (UTOMFN (COND
                      (RAW-UNICODE-MAPPING #'IDENTITY)
-                     (MAP-UNKNOWN-TO-PRIVATE #'UTOXCODE)
-                     (T #'UTOXCODE?)))
+                     (MAP-UNKNOWN-TO-PRIVATE #'UTOMCODE)
+                     (T #'UTOMCODE?)))
           (SLUG (BF-SLUG FONT))
           (SLUGWIDTH (AND SLUG (GLYPH-WIDTH SLUG)))
-          NOMAPPINGCSETS ENC XCODE XCS)
+          NOMAPPINGCSETS ENC MCODE MCS)
          (UNLESS (OR MAP-UNKNOWN-TO-PRIVATE RAW-UNICODE-MAPPING)
              (SETQ NOMAPPINGCSETS (MAKE-ARRAY NCSETS :INITIAL-CONTENTS (LOOP :REPEAT NCSETS :COLLECT
                                                                              (CONS NIL)))))
@@ -358,7 +371,7 @@ FONTPROP INPUT ITALIC LIGHT LRSH MEDIUM REGULAR TCONC UTOXCODE UTOXCODE? WRITEST
                      :UNLESS
                      (EQ GL SLUG)
                      :DO
-                     (SETQ XCS NIL)
+                     (SETQ MCS NIL)
                      (SETQ ENC (GLYPH-ENCODING GL))
                      (WHEN (LISTP ENC)
 
@@ -372,9 +385,9 @@ FONTPROP INPUT ITALIC LIGHT LRSH MEDIUM REGULAR TCONC UTOXCODE UTOXCODE? WRITEST
 
    "The -1 case of the (OR ...) shouldn't happen. The (EQ GL SLUG) test above should have caught it")

 
                          )
-                     (SETQ XCODE (AND (INTEGERP ENC)
+                     (SETQ MCODE (AND (INTEGERP ENC)
                                       (PLUSP ENC)
-                                      (FUNCALL UTOXFN ENC)))
+                                      (FUNCALL UTOMFN ENC)))
                      (IF RAW-UNICODE-MAPPING
                          (COND
                             ((> ENC 65535)
@@ -394,7 +407,15 @@ FONTPROP INPUT ITALIC LIGHT LRSH MEDIUM REGULAR TCONC UTOXCODE UTOXCODE? WRITEST
                                     (CONS ENC GL)))
                             (T (PUT-GLYPH-IN-CHARSET-ARRAY ENC GL CSETS)))
                          (COND
-                            ((NULL XCODE)
+                            ((AND (ZEROP (GLYPH-BBW GL))
+                                  (ZEROP (FIRST (GLYPH-DWIDTH GL))))
+
+                             (IL:* IL:|;;| 
+
       "This has zero-width \"image\" with zero-width \"escapement\", put it in the NOMAPPINGCHARSET")

+
+                             (TCONC (AREF CSETS NOMAPPINGCHARSET)
+                                    (CONS ENC GL)))
+                            ((NULL MCODE)
 
                              (IL:* IL:|;;| "These assoc with the Unicode encoding")

 
@@ -408,37 +429,37 @@ FONTPROP INPUT ITALIC LIGHT LRSH MEDIUM REGULAR TCONC UTOXCODE UTOXCODE? WRITEST
                                  (TCONC (AREF CSETS NOMAPPINGCHARSET)
                                         (CONS ENC GL)))
                                 (T (PUT-GLYPH-IN-CHARSET-ARRAY ENC GL NOMAPPINGCSETS))))
-                            ((AND (INTEGERP XCODE)
-                                  (<= 0 XCODE 65535))
+                            ((AND (INTEGERP MCODE)
+                                  (<= 0 MCODE 65535))
 
                              (IL:* IL:|;;| 
 
                             "These assoc with the 8 bit character code within the charset")

 
-                             (PUT-GLYPH-IN-CHARSET-ARRAY XCODE GL CSETS)
+                             (PUT-GLYPH-IN-CHARSET-ARRAY MCODE GL CSETS)
 
                              (IL:* IL:|;;| "Default SLUG width is width of A.")

 
                              (WHEN (AND (NOT SLUGWIDTH)
                                         (= ENC (CHAR-CODE #\A)))
 
-                                 (IL:* IL:|;;| "A is the same code in XCCS and UNICODE ")

+                                 (IL:* IL:|;;| "A is the same code in MCCS and UNICODE ")

 
                                  (IL:* IL:|;;| 
-
                                 "Comparing with ENC, not XCODE, to look only in charset 0")

+
                                 "Comparing with ENC, not MCODE, to look only in charset 0")

 
                                  (SETQ SLUGWIDTH (GLYPH-WIDTH GL))))
-                            ((LISTP XCODE)
+                            ((LISTP MCODE)
 
                              (IL:* IL:|;;| 
 
                          "These assoc with the 8 bit character code within the charset (like above)")

 
-                             (LOOP :FOR XC :IN XCODE :WITH CS :UNLESS (MEMBER (SETQ CS
-                                                                                    (LRSH XC 8))
-                                                                             XCS)
+                             (LOOP :FOR MC :IN MCODE :WITH CS :UNLESS (MEMBER (SETQ CS
+                                                                                    (LRSH MC 8))
+                                                                             MCS)
                                    :DO
-                                   (PUSH CS XCS)
-                                   (PUT-GLYPH-IN-CHARSET-ARRAY XC GL CSETS)))
-                            (T (ERROR "Invalid XCODE: ~A~%"))))))
+                                   (PUSH CS MCS)
+                                   (PUT-GLYPH-IN-CHARSET-ARRAY MC GL CSETS)))
+                            (T (ERROR "Invalid MCODE: ~A~%"))))))
 
          (IL:* IL:|;;| "Extract the lists from the TCONC pointers")

 
@@ -488,7 +509,8 @@ FONTPROP INPUT ITALIC LIGHT LRSH MEDIUM REGULAR TCONC UTOXCODE UTOXCODE? WRITEST
                                                               X))
                                                         Y))))
 
-(DEFUN READ-BDF
 (PATH &OPTIONAL VERBOSE)
              (IL:* IL:\; "Edited 24-Apr-2025 00:44 by mth")


+(DEFUN READ-BDF
 (PATH &OPTIONAL VERBOSE)
              (IL:* IL:\; "Edited 30-Apr-2025 13:37 by mth")


+                                                      (IL:* IL:\; "Edited 24-Apr-2025 00:44 by mth")


                                                       (IL:* IL:\; "Edited 17-Apr-2025 15:10 by mth")


                                                       (IL:* IL:\; "Edited 12-Jul-2024 23:02 by mth")

    (LET
@@ -603,15 +625,15 @@ FONTPROP INPUT ITALIC LIGHT LRSH MEDIUM REGULAR TCONC UTOXCODE UTOXCODE? WRITEST
                                              (SETF (BF-SLUG FONT)
                                                    GL))))))
                       (ENDFONT (SETQ FONT-COMPLETE T))))))))
-     (WHEN VERBOSE
-         (DESTRUCTURING-BIND (FAMILY (WEIGHT SLANT EXPANSION)
-                                    SIZE)
-                (GET-FAMILY-FACE-SIZE-FROM-NAME
 FONT)
+     (DESTRUCTURING-BIND (FAMILY (WEIGHT SLANT EXPANSION)
+                                SIZE)
+            (GET-FAMILY-FACE-SIZE-FROM-NAME
 FONT)
+            (WHEN VERBOSE
                 (FORMAT *STANDARD-OUTPUT* 
                        "Name: ~A~%Family: ~A~%Size: ~A~%Weight: ~A~%Slant: ~A~%Expansion: ~A~%"
                        (BF-NAME FONT)
-                       FAMILY SIZE WEIGHT SLANT EXPANSION)))
-     FONT)))
+                       FAMILY SIZE WEIGHT SLANT EXPANSION))
+            (VALUES FONT FAMILY WEIGHT SLANT EXPANSION SIZE)))))
 
 (DEFUN READ-DELIMITED-LIST-FROM-STRING
 (INPUT-STRING &OPTIONAL (DELIMIT #\]))

                                                       (IL:* IL:\; "Edited 20-Aug-2024 16:46 by mth")

@@ -699,7 +721,7 @@ FONTPROP INPUT ITALIC LIGHT LRSH MEDIUM REGULAR TCONC UTOXCODE UTOXCODE? WRITEST
                                                 (SETQ WORDINDEX (* BITROW BM.RASTERWIDTH))
                                                 (SETQ BYTEPOS (* 16 (1- NWORDS)))
                                                 (LOOP :REPEAT NWORDS :DO
-                                                      (\\PUTBASE BM.BASE WORDINDEX
+                                                      (IL:\\PUTBASE BM.BASE WORDINDEX
                                                              (LDB (BYTE 16 BYTEPOS)
                                                                   BITS))
                                                       (INCF WORDINDEX)
@@ -744,12 +766,13 @@ FONTPROP INPUT ITALIC LIGHT LRSH MEDIUM REGULAR TCONC UTOXCODE UTOXCODE? WRITEST
                                              (CHAR-SETS T)
                                              MAP-UNKNOWN-TO-PRIVATE WRITE-UNMAPPED 
                                              RAW-UNICODE-MAPPING)

+                                                      (IL:* IL:\; "Edited  5-Nov-2025 23:06 by mth")


                                                       (IL:* IL:\; "Edited 25-Apr-2025 10:08 by mth")


                                                       (IL:* IL:\; "Edited 24-Apr-2025 00:09 by mth")


                                                       (IL:* IL:\; "Edited 21-Apr-2025 16:03 by mth")


                                                       (IL:* IL:\; "Edited  3-Feb-2025 23:18 by mth")

    (UNLESS (TYPEP BDFONT 'BDF-FONT)
-          (ERROR "Not a BDF-FONT: ~S~%" BDFONT))
+          (ERROR "Not a BDF-FONT: ~S ~%" BDFONT))
    (COND
       ((EQ CHAR-SETS T)                                      (IL:* IL:\; "This means ALL charsets")

        )
@@ -769,7 +792,7 @@ FONTPROP INPUT ITALIC LIGHT LRSH MEDIUM REGULAR TCONC UTOXCODE UTOXCODE? WRITEST
           (GET-FAMILY-FACE-SIZE-FROM-NAME
 BDFONT)
           (SETQ FAMILY (OR FAMILY FN-FAMILY))
           (WHEN RAW-UNICODE-MAPPING
-              (SETQ FAMILY (\\FONTSYMBOL (CONCATENATE 'STRING "RAW-" (STRING FAMILY)))))
+              (SETQ FAMILY (IL:\\FONTSYMBOL (CONCATENATE 'STRING "RAW-" (STRING FAMILY)))))
           (SETQ FACE (OR FACE FN-FACE))
           (SETQ SIZE (OR SIZE FN-SIZE))
           (MULTIPLE-VALUE-BIND (FONTDESC CSETS UNMAPPED-FONTDESC UNICODE-CSETS UNMAPPEDGLYPHS)
@@ -780,16 +803,16 @@ FONTPROP INPUT ITALIC LIGHT LRSH MEDIUM REGULAR TCONC UTOXCODE UTOXCODE? WRITEST
                      (SETQ UNICODE-CSETS (INTERSECTION CHAR-SETS UNICODE-CSETS)))
                  (LOOP :FOR CS :IN CSETS :DO (WRITESTRIKEFONTFILE FONTDESC CS
                                                     (PACKFILENAME.STRING
 :BODY DEST-DIR :NAME
-                                                           (\\FONTFILENAME FAMILY SIZE FACE 
+                                                           (IL:\\FONTFILENAME FAMILY SIZE FACE 
                                                                   "DISPLAYFONT" CS))))
                  (IF WRITE-UNMAPPED
                      (LOOP :FOR CS :IN UNICODE-CSETS :DO (WRITESTRIKEFONTFILE
                                                           UNMAPPED-FONTDESC CS
                                                           (PACKFILENAME.STRING

                                                            :BODY DEST-DIR :NAME
-                                                           (\\FONTFILENAME (FONTPROP 
-                                                                                  UNMAPPED-FONTDESC
-                                                                                  'IL:FAMILY)
+                                                           (IL:\\FONTFILENAME (FONTPROP 
+                                                                                    UNMAPPED-FONTDESC
+                                                                                     'IL:FAMILY)
                                                                   SIZE FACE "DISPLAYFONT" CS))))
                      (SETQ UNICODE-CSETS NIL))
 
@@ -801,6 +824,10 @@ FONTPROP INPUT ITALIC LIGHT LRSH MEDIUM REGULAR TCONC UTOXCODE UTOXCODE? WRITEST
                  (VALUES FONTDESC CSETS UNMAPPED-FONTDESC UNICODE-CSETS UNMAPPEDGLYPHS))))
 (IL:DECLARE\: IL:EVAL@COMPILE IL:DONTCOPY 
 
+(IL:FILESLOAD (IL:SYSLOAD)
+       IL:SYSEDIT)
+
+
 (IL:FILESLOAD (IL:LOADCOMP)
        IL:FONT)
 )
@@ -808,25 +835,23 @@ FONTPROP INPUT ITALIC LIGHT LRSH MEDIUM REGULAR TCONC UTOXCODE UTOXCODE? WRITEST
 (DEFINE-FILE-ENVIRONMENT "READ-BDF"
 :PACKAGE (DEFPACKAGE "BDF" (:USE "XCL" "LISP")
                                                     (:EXPORT "READ-BDF" 
                                                            "WRITE-BDF-TO-DISPLAYFONT-FILES")
-                                                    (:IMPORT \\AVGCHARWIDTH \\FGETWIDTH \\FONTFACE 
-                                                           \\FONTFILENAME \\FSETOFFSET \\FSETWIDTH 
-                                                           \\FONTSYMBOL \\GETSTREAM 
-                                                           \\INSTALLCHARSETINFO \\PUTBASE BITBLT 
-                                                           BITMAPCREATE BITMAPHEIGHT BITMAPWIDTH 
-                                                           BLACKSHADE BLTSHADE BOLD CONDENSED 
-                                                           CHARSETINFO DISPLAY FONTDESCRIPTOR FONTP 
-                                                           FONTPROP INPUT ITALIC LIGHT LRSH MEDIUM 
-                                                           REGULAR TCONC UTOXCODE UTOXCODE? 
-                                                           WRITESTRIKEFONTFILE))
+                                                    (:IMPORT-FROM "IL" "BITBLT" "BITMAPCREATE" 
+                                                           "BITMAPHEIGHT" "BITMAPWIDTH" "BLACKSHADE"
+                                                           "BLTSHADE" "BOLD" "COMPRESSED" 
+                                                           "CHARSETINFO" "DISPLAY" "FONTDESCRIPTOR" 
+                                                           "FONTP" "FONTPROP" "INPUT" "ITALIC" 
+                                                           "LIGHT" "LRSH" "MEDIUM" "REGULAR" "TCONC"
+                                                           "UTOMCODE" "UTOMCODE?" 
+                                                           "WRITESTRIKEFONTFILE"))
    :READTABLE "XCL"
    :COMPILER :COMPILE-FILE)
 
 (IL:PUTPROPS IL:READ-BDF
 IL:DATABASE
 IL:NO)
 (IL:DECLARE\: IL:DONTCOPY
-  (IL:FILEMAP (NIL (2316 10275 (BDF-TO-CHARSETINFO 2316 . 10275)) (10277 16147 (BDF-TO-FONTDESCRIPTOR 
-10277 . 16147)) (16149 19687 (GET-FAMILY-FACE-SIZE-FROM-NAME 16149 . 19687)) (19689 26500 (
-GLYPHS-BY-CHARSET 19689 . 26500)) (26502 27927 (PACKFILENAME.STRING 26502 . 27927)) (27929 34733 (
-READ-BDF 27929 . 34733)) (34735 35058 (READ-DELIMITED-LIST-FROM-STRING 34735 . 35058)) (35060 41548 (
-READ-GLYPH 35060 . 41548)) (41550 42291 (SPLIT-FONT-NAME 41550 . 42291)) (42293 46075 (
-WRITE-BDF-TO-DISPLAYFONT-FILES 42293 . 46075)))))
+  (IL:FILEMAP (NIL (2497 10576 (BDF-TO-CHARSETINFO 2497 . 10576)) (10578 16996 (BDF-TO-FONTDESCRIPTOR 
+10578 . 16996)) (16998 20538 (GET-FAMILY-FACE-SIZE-FROM-NAME 16998 . 20538)) (20540 27970 (
+GLYPHS-BY-CHARSET 20540 . 27970)) (27972 29397 (PACKFILENAME.STRING 27972 . 29397)) (29399 36358 (
+READ-BDF 29399 . 36358)) (36360 36683 (READ-DELIMITED-LIST-FROM-STRING 36360 . 36683)) (36685 43176 (
+READ-GLYPH 36685 . 43176)) (43178 43919 (SPLIT-FONT-NAME 43178 . 43919)) (43921 47827 (
+WRITE-BDF-TO-DISPLAYFONT-FILES 43921 . 47827)))))
 IL:STOP
diff --git a/lispusers/READ-BDF.DFASL b/lispusers/READ-BDF.DFASL
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diff --git a/lispusers/READ-BDF.TEDIT b/lispusers/READ-BDF.TEDIT
index 8f6e2ec54277d7d0aa52a6e7c53c832eb004d43b..891c14cc161b6a178923a02d5d7af4e2a55e0467 100644
GIT binary patch
delta 2044
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UNiSq49_{>mZnn__pPqgG0~Z<cpa1{>

delta 1879
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From 9d2809028d4b3511221b19897062688254791bab Mon Sep 17 00:00:00 2001
From: rmkaplan <69548581+rmkaplan@users.noreply.github.com>
Date: Mon, 17 Nov 2025 13:31:59 -0800
Subject: [PATCH 05/20] Fix Tedit promptwindow overlap when given a title-less
 window (#2375)

Fix promptwindow overlap when given a title-less window
---
 library/tedit/TEDIT-WINDOW      |  93 ++++++++++++++++----------------
 library/tedit/TEDIT-WINDOW.LCOM | Bin 62647 -> 62636 bytes
 2 files changed, 48 insertions(+), 45 deletions(-)

diff --git a/library/tedit/TEDIT-WINDOW b/library/tedit/TEDIT-WINDOW
index 9ce843a2..00ea577e 100644
--- a/library/tedit/TEDIT-WINDOW
+++ b/library/tedit/TEDIT-WINDOW
@@ -1,12 +1,12 @@
 (DEFINE-FILE-INFO PACKAGE "INTERLISP" READTABLE "INTERLISP" BASE 10)
 
-
(FILECREATED "25-Oct-2025 10:33:08" {WMEDLEY}<library>TEDIT>TEDIT-WINDOW.;878
 230780 
+
(FILECREATED "15-Nov-2025 01:27:38" {WMEDLEY}<library>TEDIT>TEDIT-WINDOW.;881
 231034 
 
       :EDIT-BY rmk
 
-      :CHANGES-TO (FNS \TEDIT.WINDOW.GETREGION)
+      :CHANGES-TO (FNS \TEDIT.WINDOW.CREATE)
 
-      :PREVIOUS-DATE "24-Oct-2025 09:11:52" {WMEDLEY}<library>tedit>TEDIT-WINDOW.;874)
+      :PREVIOUS-DATE "25-Oct-2025 10:33:08" {WMEDLEY}<library>TEDIT>TEDIT-WINDOW.;878)
 
 
 (PRETTYCOMPRINT TEDIT-WINDOWCOMS)
@@ -354,7 +354,8 @@
 (DEFINEQ
 
 (\TEDIT.WINDOW.CREATE

-  [LAMBDA (WINDOW TSTREAM PROPS)
                             (* ; "Edited 23-Oct-2025 18:22 by rmk")


+  [LAMBDA (WINDOW TSTREAM PROPS)
                             (* ; "Edited 15-Nov-2025 01:27 by rmk")


+                                                             (* ; "Edited 23-Oct-2025 18:22 by rmk")


                                                              (* ; "Edited 21-Jul-2025 11:55 by rmk")


                                                              (* ; "Edited  9-May-2025 12:11 by rmk")


                                                              (* ; "Edited 25-Apr-2025 21:24 by rmk")


@@ -377,24 +378,26 @@
 
     (LET ((TEXTOBJ (FTEXTOBJ TSTREAM))
           (PHEIGHT 0)
-          TITLE REGIONTYPE PROMPTPROP REGION FILE PWINDOW PREPROMPT WTEXTOBJ)
+          REGIONTYPE PROMPTPROP REGION FILE PWINDOW PREPROMPT)
+         (SETQ FILE (GETTOBJ TEXTOBJ TXTFILE))
          (CL:WHEN (WINDOWP WINDOW)
              (CL:WHEN (GETTSTR (fetch
 (TEXTWINDOW WTEXTSTREAM) of
 WINDOW)
                              TEXTOBJ)
 
-                 (* ;; " %"Reusing an existing Tedit window, kill the old process, undo its splits and restore its shape.%" ")

+                 (* ;; " %"Reusing an existing Tedit window, kill the old process, undo its splits and restore its shape. Make sure it has a title%" ")

 
                  (TEDIT.KILL WINDOW)
                  (\TEDIT.CLOSESPLITS
 (fetch
 (TEXTWINDOW WTEXTSTREAM) of
 WINDOW)
                         T))
-             [SETQ TITLE (OR (LISTGET PROPS 'TITLE)
-                             (WINDOWPROP WINDOW 'TITLE])
+
+             (* ;; "Every tedit window has a title bar, maybe one that it had already?")

+
+             (WINDOWPROP WINDOW 'TITLE (OR (LISTGET PROPS 'TITLE)
+                                           (WINDOWPROP WINDOW 'TITLE)
+                                           (\TEDIT.DEFAULT.TITLE
 FILE PROPS))))
          (SETQ REGIONTYPE (OR (GETTEXTPROP TEXTOBJ 'REGION-TYPE)
                               (AND (LITATOM WINDOW)
                                    WINDOW)))
-         (SETQ FILE (GETTOBJ TEXTOBJ TXTFILE))
-         (CL:UNLESS TITLE
-             (SETQ TITLE (\TEDIT.DEFAULT.TITLE
 FILE PROPS)))
          (SETQ PROMPTPROP (GETTEXTPROP TEXTOBJ 'PROMPTWINDOW))
 
          (* ;; "All this prompt-height calculation would be unnecessary if the attachment in GETPROMPTWINDOW does the proper shrinking of the main window.")

@@ -421,7 +424,8 @@
                                  REGION))
              (add
 (fetch
 (REGION HEIGHT) of
 REGION)
                   (IMINUS PHEIGHT))
-             (SETQ WINDOW (CREATEW REGION TITLE NIL NIL PROPS))
+             (SETQ WINDOW (CREATEW REGION (\TEDIT.DEFAULT.TITLE
 FILE PROPS)
+                                 NIL NIL PROPS))
 
              (* ;; "If we grabbed a typed-region, (maybe just a Tedit region by default.  We stash it back onto the window so it will be remembered for next time.")

 
@@ -451,7 +455,6 @@
 
          (FSETTOBJ TEXTOBJ PRIMARYPANE (\TEDIT.MINIMAL.WINDOW.SETUP
 WINDOW TSTREAM PROPS))
                                                              (* ; "This should be PANE")

-         (WINDOWPROP WINDOW 'TITLE TITLE)
          WINDOW])
 
 (\TEDIT.WINDOW.GETREGION

@@ -3659,36 +3662,36 @@
 (RPAQ? TEDIT.TITLED.ICON.TEMPLATE
 (create TITLEDICON ICON _ TEDITICON MASK _ TEDITMASK TITLEREG _ 
                                          TEDIT.ICON.TITLE.REGION))
 (DECLARE%: DONTCOPY
-  (FILEMAP (NIL (17103 17999 (TEDIT.DEFER.UPDATES 17113 . 17997)) (18000 44835 (\TEDIT.WINDOW.CREATE 
-18010 . 24616) (\TEDIT.WINDOW.GETREGION 24618 . 29322) (\TEDIT.WINDOW.SETUP 29324 . 33654) (
-\TEDIT.MINIMAL.WINDOW.SETUP 33656 . 41467) (\TEDIT.CLEARPANE 41469 . 42186) (\TEDIT.FILL.PANES 42188
- . 44833)) (44836 68537 (\TEDIT.CURSORMOVEDFN 44846 . 50456) (\TEDIT.CURSOROUTFN 50458 . 51146) (
-\TEDIT.ACTIVE.WINDOWP 51148 . 52218) (\TEDIT.EXPANDFN 52220 . 52783) (\TEDIT.MAINW 52785 . 54065) (
-\TEDIT.MAINSTREAM 54067 . 54401) (\TEDIT.PRIMARYPANE 54403 . 55173) (\TEDIT.PANELIST 55175 . 55671) (
-\TEDIT.NEWREGIONFN 55673 . 58189) (\TEDIT.SET.WINDOW.EXTENT 58191 . 63173) (\TEDIT.SHRINK.ICONCREATE 
-63175 . 65908) (\TEDIT.SHRINKFN 65910 . 66319) (\TEDIT.PANEREGION 66321 . 68535)) (68569 101615 (
-\TEDIT.BUTTONEVENTFN 68579 . 81552) (\TEDIT.BUTTONEVENTFN.DOOPERATION 81554 . 88817) (
-\TEDIT.BUTTONEVENTFN.GETOPERATION 88819 . 90661) (\TEDIT.BUTTONEVENTFN.CURSEL.INIT 90663 . 94333) (
-\TEDIT.BUTTONEVENTFN.INACTIVE 94335 . 96765) (\TEDIT.BUTTONEVENTFN.INTITLE 96767 . 98602) (
-\TEDIT.COPYINSERTFN 98604 . 99736) (\TEDIT.FOREIGN.COPY 99738 . 101613)) (101616 119179 (
-\TEDIT.PANE.SPLIT 101626 . 105574) (\TEDIT.SPLITW 105576 . 113635) (\TEDIT.UNSPLITW 113637 . 117836) (
-\TEDIT.LINKPANES 117838 . 118601) (\TEDIT.UNLINKPANE 118603 . 119177)) (120613 121504 (TEDITWINDOWP 
-120623 . 121502)) (121541 124644 (TEDIT.GETINPUT 121551 . 123994) (\TEDIT.MAKEFILENAME 123996 . 124642
-)) (124693 132343 (TEDIT.PROMPTWINDOW 124703 . 125017) (TEDIT.PROMPTPRINT 125019 . 127646) (
-TEDIT.PROMPTCLEAR 127648 . 129390) (TEDIT.PROMPTFLASH 129392 . 130650) (\TEDIT.PROMPT.PAGEFULLFN 
-130652 . 132341)) (132581 143159 (\TEDIT.FILENAME 132591 . 133363) (\TEDIT.DEFAULT.TITLE 133365 . 
-135744) (\TEDIT.WINDOW.TITLE 135746 . 137915) (\TEDIT.LIKELY.FILENAME 137917 . 140641) (
-\TEDIT.UPDATE.TITLE 140643 . 143157)) (143202 155686 (TEDIT.DEACTIVATE.WINDOW 143212 . 148785) (
-\TEDIT.RESHAPEFN 148787 . 150872) (\TEDIT.REPAINTFN 150874 . 151098) (\TEDIT.CLOSESPLITS 151100 . 
-153545) (\TEDIT.CLOSEPANE 153547 . 155684)) (155687 198486 (\TEDIT.SCROLLFN 155697 . 157928) (
-\TEDIT.SCROLLCH.TOP 157930 . 160041) (\TEDIT.SCROLLCH.BOTTOM 160043 . 164373) (\TEDIT.SCROLLUP 164375
- . 170101) (\TEDIT.TOPLINE.YTOP 170103 . 171772) (\TEDIT.SCROLLDOWN 171774 . 178813) (
-\TEDIT.SCROLL.CARET 178815 . 181653) (\TEDIT.VISIBLECARETP 181655 . 183949) (\TEDIT.VISIBLECHARP 
-183951 . 185042) (\TEDIT.BITMAPLINES 185044 . 188964) (\TEDIT.SETPANE.TOPLINE 188966 . 189578) (
-\TEDIT.SHIFTLINES 189580 . 198484)) (198487 209356 (\TEDIT.ONSCREEN? 198497 . 203048) (
-\TEDIT.ONSCREEN.REGION 203050 . 206701) (\TEDIT.AFTERMOVEFN 206703 . 207600) (OFFSCREENP 207602 . 
-209354)) (209398 212212 (\TEDIT.PROCIDLEFN 209408 . 211068) (\TEDIT.PROCENTRYFN 211070 . 211515) (
-\TEDIT.PROCEXITFN 211517 . 212210)) (212291 225516 (\TEDIT.DOWNCARET 212301 . 213094) (
-\TEDIT.FLASHCARET 213096 . 215207) (\TEDIT.UPCARET 215209 . 216313) (TEDIT.NORMALIZECARET 216315 . 
-219533) (\TEDIT.SETCARET 219535 . 224886) (\TEDIT.CARET 224888 . 225514)))))
+  (FILEMAP (NIL (17100 17996 (TEDIT.DEFER.UPDATES 17110 . 17994)) (17997 45089 (\TEDIT.WINDOW.CREATE 
+18007 . 24870) (\TEDIT.WINDOW.GETREGION 24872 . 29576) (\TEDIT.WINDOW.SETUP 29578 . 33908) (
+\TEDIT.MINIMAL.WINDOW.SETUP 33910 . 41721) (\TEDIT.CLEARPANE 41723 . 42440) (\TEDIT.FILL.PANES 42442
+ . 45087)) (45090 68791 (\TEDIT.CURSORMOVEDFN 45100 . 50710) (\TEDIT.CURSOROUTFN 50712 . 51400) (
+\TEDIT.ACTIVE.WINDOWP 51402 . 52472) (\TEDIT.EXPANDFN 52474 . 53037) (\TEDIT.MAINW 53039 . 54319) (
+\TEDIT.MAINSTREAM 54321 . 54655) (\TEDIT.PRIMARYPANE 54657 . 55427) (\TEDIT.PANELIST 55429 . 55925) (
+\TEDIT.NEWREGIONFN 55927 . 58443) (\TEDIT.SET.WINDOW.EXTENT 58445 . 63427) (\TEDIT.SHRINK.ICONCREATE 
+63429 . 66162) (\TEDIT.SHRINKFN 66164 . 66573) (\TEDIT.PANEREGION 66575 . 68789)) (68823 101869 (
+\TEDIT.BUTTONEVENTFN 68833 . 81806) (\TEDIT.BUTTONEVENTFN.DOOPERATION 81808 . 89071) (
+\TEDIT.BUTTONEVENTFN.GETOPERATION 89073 . 90915) (\TEDIT.BUTTONEVENTFN.CURSEL.INIT 90917 . 94587) (
+\TEDIT.BUTTONEVENTFN.INACTIVE 94589 . 97019) (\TEDIT.BUTTONEVENTFN.INTITLE 97021 . 98856) (
+\TEDIT.COPYINSERTFN 98858 . 99990) (\TEDIT.FOREIGN.COPY 99992 . 101867)) (101870 119433 (
+\TEDIT.PANE.SPLIT 101880 . 105828) (\TEDIT.SPLITW 105830 . 113889) (\TEDIT.UNSPLITW 113891 . 118090) (
+\TEDIT.LINKPANES 118092 . 118855) (\TEDIT.UNLINKPANE 118857 . 119431)) (120867 121758 (TEDITWINDOWP 
+120877 . 121756)) (121795 124898 (TEDIT.GETINPUT 121805 . 124248) (\TEDIT.MAKEFILENAME 124250 . 124896
+)) (124947 132597 (TEDIT.PROMPTWINDOW 124957 . 125271) (TEDIT.PROMPTPRINT 125273 . 127900) (
+TEDIT.PROMPTCLEAR 127902 . 129644) (TEDIT.PROMPTFLASH 129646 . 130904) (\TEDIT.PROMPT.PAGEFULLFN 
+130906 . 132595)) (132835 143413 (\TEDIT.FILENAME 132845 . 133617) (\TEDIT.DEFAULT.TITLE 133619 . 
+135998) (\TEDIT.WINDOW.TITLE 136000 . 138169) (\TEDIT.LIKELY.FILENAME 138171 . 140895) (
+\TEDIT.UPDATE.TITLE 140897 . 143411)) (143456 155940 (TEDIT.DEACTIVATE.WINDOW 143466 . 149039) (
+\TEDIT.RESHAPEFN 149041 . 151126) (\TEDIT.REPAINTFN 151128 . 151352) (\TEDIT.CLOSESPLITS 151354 . 
+153799) (\TEDIT.CLOSEPANE 153801 . 155938)) (155941 198740 (\TEDIT.SCROLLFN 155951 . 158182) (
+\TEDIT.SCROLLCH.TOP 158184 . 160295) (\TEDIT.SCROLLCH.BOTTOM 160297 . 164627) (\TEDIT.SCROLLUP 164629
+ . 170355) (\TEDIT.TOPLINE.YTOP 170357 . 172026) (\TEDIT.SCROLLDOWN 172028 . 179067) (
+\TEDIT.SCROLL.CARET 179069 . 181907) (\TEDIT.VISIBLECARETP 181909 . 184203) (\TEDIT.VISIBLECHARP 
+184205 . 185296) (\TEDIT.BITMAPLINES 185298 . 189218) (\TEDIT.SETPANE.TOPLINE 189220 . 189832) (
+\TEDIT.SHIFTLINES 189834 . 198738)) (198741 209610 (\TEDIT.ONSCREEN? 198751 . 203302) (
+\TEDIT.ONSCREEN.REGION 203304 . 206955) (\TEDIT.AFTERMOVEFN 206957 . 207854) (OFFSCREENP 207856 . 
+209608)) (209652 212466 (\TEDIT.PROCIDLEFN 209662 . 211322) (\TEDIT.PROCENTRYFN 211324 . 211769) (
+\TEDIT.PROCEXITFN 211771 . 212464)) (212545 225770 (\TEDIT.DOWNCARET 212555 . 213348) (
+\TEDIT.FLASHCARET 213350 . 215461) (\TEDIT.UPCARET 215463 . 216567) (TEDIT.NORMALIZECARET 216569 . 
+219787) (\TEDIT.SETCARET 219789 . 225140) (\TEDIT.CARET 225142 . 225768)))))
 STOP
diff --git a/library/tedit/TEDIT-WINDOW.LCOM b/library/tedit/TEDIT-WINDOW.LCOM
index 439ef3627bd97586ed03d67642bfef80a505c0be..4b6b6bdf22914d269b4975f40b6b5279127616a6 100644
GIT binary patch
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KYtLSm{`?Pd^;F9M

delta 1444
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RLIs3b)Rvl#zR14u-~ZXZU3>rl


From 0fdcbe0590eb62724f16c6e76c36beb874d297f9 Mon Sep 17 00:00:00 2001
From: rmkaplan <69548581+rmkaplan@users.noreply.github.com>
Date: Mon, 17 Nov 2025 13:32:50 -0800
Subject: [PATCH 06/20] Extend GITFNS/COMPAREDIRECTORIES so that the See and
 Compare commands work after files have been rearranged (#2331)

* COMPAREDIRECTORIES and GITFNS keep information for seeing and comparing even after files have moved
---
 lispusers/COMPAREDIRECTORIES      | 190 +++++++++++++++++++-----------
 lispusers/COMPAREDIRECTORIES.LCOM | Bin 42070 -> 42843 bytes
 lispusers/EXAMINEDEFS             |  19 +--
 lispusers/EXAMINEDEFS.LCOM        | Bin 5695 -> 5735 bytes
 lispusers/GITFNS                  | 156 ++++++++----------------
 lispusers/GITFNS.LCOM             | Bin 51656 -> 50970 bytes
 6 files changed, 180 insertions(+), 185 deletions(-)

diff --git a/lispusers/COMPAREDIRECTORIES b/lispusers/COMPAREDIRECTORIES
index cfe48dc5..2531735b 100644
--- a/lispusers/COMPAREDIRECTORIES
+++ b/lispusers/COMPAREDIRECTORIES
@@ -1,12 +1,12 @@
 (DEFINE-FILE-INFO PACKAGE "INTERLISP" READTABLE "INTERLISP" BASE 10)
 
-
(FILECREATED "25-Oct-2025 23:59:24" {MEDLEY}<lispusers>COMPAREDIRECTORIES.;2
 135376 
+
(FILECREATED " 8-Nov-2025 13:07:39" {WMEDLEY}<lispusers>COMPAREDIRECTORIES.;285
 138536 
 
       :EDIT-BY rmk
 
-      :CHANGES-TO (FNS CDBROWSER-COPY)
+      :CHANGES-TO (FNS CD-MENUFN CDBROWSER-COPY)
 
-      :PREVIOUS-DATE "22-Oct-2025 08:32:01" {WMEDLEY}<lispusers>COMPAREDIRECTORIES.;272)
+      :PREVIOUS-DATE "28-Oct-2025 14:52:05" {WMEDLEY}<lispusers>COMPAREDIRECTORIES.;280)
 
 
 (PRETTYCOMPRINT COMPAREDIRECTORIESCOMS)
@@ -1707,6 +1707,8 @@
 (CDBROWSER

   [LAMBDA (CDVALUE TITLE COLHEADINGS BROWSERPROPS SEPARATEDIRECTIONS MENUITEMS)
 
+    (* ;; "Edited 28-Oct-2025 14:49 by rmk")

+
     (* ;; "Edited 28-Jan-2022 17:01 by rmk: a table browser for the differences in CDVALUE.")

 
     (* ;; "Creates a table browser for the differences in CDVALUE.")

@@ -1752,7 +1754,7 @@
              [SETQ BROWSER (TB.MAKE.BROWSER (FOR
 PAIR IN
 STRINGS COLLECT
 (CD.TABLEITEM
 PAIR))
                                   WINDOW
                                   `(PRINTFN CD.TABLEITEM.PRINTFN COPYFN CD.TABLEITEM.COPYFN USERDATA
-                                          ,(APPEND BROWSERPROPS (LIST 'CDVALUE CDVALUE]
+                                          (,@BROWSERPROPS (CDVALUE ,@CDVALUE]
              (ATTACHMENU (CREATE
 MENU
                                 TITLE _ " CD commands "
                                 MENUFONT _ DEFAULTFONT
@@ -1893,7 +1895,8 @@
            'DON'T])
 
 (CD.COMMANDSELECTEDFN

-  [LAMBDA (MENUITEM MENU KEY)
                                (* ; "Edited  6-Mar-2022 19:52 by rmk")


+  [LAMBDA (MENUITEM MENU KEY)
                                (* ; "Edited 28-Oct-2025 14:34 by rmk")


+                                                             (* ; "Edited  6-Mar-2022 19:52 by rmk")


                                                              (* ; "Edited 24-Feb-2022 19:52 by rmk")


                                                              (* ; "Edited  5-Feb-2022 17:23 by rmk")


                                                              (* ; "Edited 27-Jan-2022 17:46 by rmk")


@@ -1944,7 +1947,8 @@
                                             (LABEL1 (OR (CAR LABELS)
                                                         FILE1))
                                             (LABEL2 (OR (CADR LABELS)
-                                                        FILE2)))
+                                                        FILE2))
+                                            TEMP)
                                            (DECLARE
 (SPECVARS . T))
 
                                            (* ;; 
@@ -1958,6 +1962,16 @@
                                                                     OF
 (FETCH
 (CDENTRY
 INFO2)
                                                                           OF
 CDENTRY)))
                                                   (SETQ FILE2 NIL))
+                                           (CL:WHEN (SETQ TEMP (SGETMULTI (fetch
 (TABLEBROWSER 
+                                                                                        TBUSERDATA)
+                                                                             of
 CDBROWSER)
+                                                                      'ORIGINALFILES FILE1))
+                                                  (SETQ FILE1 TEMP))
+                                           (CL:WHEN (SETQ TEMP (SGETMULTI (fetch
 (TABLEBROWSER 
+                                                                                        TBUSERDATA)
+                                                                             of
 CDBROWSER)
+                                                                      'ORIGINALFILES FILE2))
+                                                  (SETQ FILE2 TEMP))
 
                                  (* ;; "If USERDATA contains a LABELFN, then it is applied to the files and the rest of the USERDATA to produce abbreviated labels for titles and headers.")

 
@@ -1969,6 +1983,10 @@
 (CD-MENUFN

   [LAMBDA (TBITEM MENUITEM CDBROWSER KEY)
 
+    (* ;; "Edited  8-Nov-2025 13:06 by rmk")

+
+    (* ;; "Edited 28-Oct-2025 17:35 by rmk")

+
     (* ;; "Edited 26-Mar-2025 09:39 by rmk")

 
     (* ;; "Edited 18-Feb-2025 23:36 by rmk")

@@ -1996,7 +2014,8 @@
               (Compare (IF
 (AND FILE1 FILE2)
                            THEN
 (CD-COMPARE-FILES
 FILE1 FILE2 LABEL1 LABEL2 TYPE (WINDOWPROP
                                                                                   WINDOW
-                                                                                  'REGION))
+                                                                                  'REGION)
+                                       CDBROWSER)
                          ELSE
 (FLASHWINDOW T)
                               (PRIN3 "Only one file" T)))
               (See% left (IF
 FILE1
@@ -2060,18 +2079,20 @@
                                         NIL))))
               (Copy% -> (CDBROWSER-COPY
 CDBROWSER TBITEM 'LEFT))
               (Copy% <- (CDBROWSER-COPY
 CDBROWSER TBITEM 'RIGHT))
-              (Delete% <- (CDBROWSER-DELETE-FILE
 CDBROWSER TBITEM 'LEFT T))
+              (Delete% <- (CDBROWSER-DELETE-FILE
 CDBROWSER TBITEM KEY 'LEFT T))
               (|Delete ALL <-| 
-                   (CDBROWSER-DELETE-FILE
 CDBROWSER TBITEM 'LEFT NIL))
-              (Delete% -> (CDBROWSER-DELETE-FILE
 CDBROWSER TBITEM 'RIGHT T))
+                   (CDBROWSER-DELETE-FILE
 CDBROWSER TBITEM KEY 'LEFT NIL))
+              (Delete% -> (CDBROWSER-DELETE-FILE
 CDBROWSER TBITEM KEY 'RIGHT T))
               (|Delete ALL ->| 
-                   (CDBROWSER-DELETE-FILE
 CDBROWSER TBITEM 'RIGHT NIL))
+                   (CDBROWSER-DELETE-FILE
 CDBROWSER TBITEM KEY 'RIGHT NIL))
               (SHOULDNT)))
          (CLOSEWITH CHILDREN WINDOW)
          (MOVEWITH CHILDREN WINDOW])
 
 (CD-COMPARE-FILES

-  [LAMBDA (FILE1 FILE2 LABEL1 LABEL2 TYPE PARENTREGION)
      (* ; "Edited 22-May-2022 14:41 by rmk")

+  [LAMBDA (FILE1 FILE2 LABEL1 LABEL2 TYPE PARENTREGION CDBROWSER)

+                                                             (* ; "Edited 28-Oct-2025 10:42 by rmk")


+                                                             (* ; "Edited 22-May-2022 14:41 by rmk")

     (PROG NIL
           (SETQ FILE1 (OR (STREAMP FILE1)
                           (INFILEP FILE1)))
@@ -2094,7 +2115,7 @@
                                                         `(,PARENTREGION 0.125)
                                                         (IPLUS (FETCH
 (REGION BOTTOM) OF
 PARENTREGION
                                                                       )
-                                                               20)
+                                                               70)
                                                         NIL))))
                       (COMPILED (FLASHWINDOW T)
                                 (PRIN3 "Cannot compare compiled files" T))
@@ -2123,7 +2144,8 @@
                                                              NIL])
 
 (CDBROWSER-COPY

-  [LAMBDA (CDBROWSER
 TBITEM SOURCE UNIXDEST)
                 (* ; "Edited 25-Oct-2025 23:58 by rmk")


+  [LAMBDA (CDBROWSER
 TBITEM SOURCE UNIXDEST)
                 (* ; "Edited 28-Oct-2025 17:39 by rmk")


+                                                             (* ; "Edited 25-Oct-2025 23:58 by rmk")


                                                              (* ; "Edited 24-May-2022 15:49 by rmk")


                                                              (* ; "Edited 25-Apr-2022 09:24 by rmk")


                                                              (* ; "Edited  5-Feb-2022 17:27 by rmk")


@@ -2137,7 +2159,7 @@
     (* ;; "Returns NIL if the copy fails.")

 
     (CL:UNLESS (TB.ITEM.DELETED? CDBROWSER TBITEM)
-        (PROG* ((CDVALUE (LISTGET (TB.USERDATA CDBROWSER)
+        (PROG* ((CDVALUE (GETMULTI (TB.USERDATA CDBROWSER)
                                 'CDVALUE))
                 (SOURCEDIR (FETCH
 (CDVALUE CDDIR1) OF
 CDVALUE))
                 (DESTDIR (FETCH
 (CDVALUE CDDIR2) OF
 CDVALUE))
@@ -2178,7 +2200,9 @@
                (CL:UNLESS DESTFILE
                    (SETQ DESTFILE (CD-SWAPDIRS
 SOURCEFILE SOURCEDIR DESTDIR)))
                [SETQ RESULT (if
 UNIXDEST
-                                then
 [PSEUDOFILENAME (PACKFILENAME 'HOST 'DSK 'BODY
+                                then
 (SPUTMULTI (fetch
 (TABLEBROWSER TBUSERDATA) of
 CDBROWSER)
+                                            'ORIGINALFILES DESTFILE (COPYFILE DESTFILE '{NODIRCORE))
+                                     [PSEUDOFILENAME (PACKFILENAME 'HOST 'DSK 'BODY
                                                             (COPYFILE SOURCEFILE (PACKFILENAME
                                                                                   'HOST
                                                                                   'UNIX
@@ -2197,7 +2221,8 @@
                (RETURN RESULT)))])
 
 (CDBROWSER-DELETE-FILE

-  [LAMBDA (CDBROWSER
 TBITEM SIDE ONLYONE SAVE)
               (* ; "Edited 25-Apr-2022 09:06 by rmk")


+  [LAMBDA (CDBROWSER
 TBITEM KEY SIDE ONLYONE SAVE DONTMARK)
  (* ; "Edited 28-Oct-2025 13:30 by rmk")


+                                                             (* ; "Edited 25-Apr-2022 09:06 by rmk")


                                                              (* ; "Edited  5-Feb-2022 17:46 by rmk")


                                                              (* ; "Edited 18-Jan-2022 23:02 by rmk")


                                                              (* ; "Edited 19-Dec-2021 23:33 by rmk")

@@ -2210,38 +2235,58 @@
 
     (* ;; "If SAVE, then the files are renamed to a deleted directory, not actually expunged, so that they can be restored if needed.  The deleted directory is defined by sticking deleted> on the front of FILE's directory.")

 
+    (DECLARE
 (USEDFREE LABEL1 LABEL2 PWINDOW))
     (CL:UNLESS (TB.ITEM.DELETED? CDBROWSER TBITEM)
-        [LET ((CDENTRY
 (CADR (FETCH
 TIDATA OF
 TBITEM)))
-              FILE OTHERFILE)
-             (SETQ FILE (FETCH
 (CDINFO FULLNAME) OF
 (FETCH
 (CDENTRY
 INFO1) OF
 CDENTRY)))
-             (SETQ OTHERFILE (FETCH
 (CDINFO FULLNAME) OF
 (FETCH
 (CDENTRY
 INFO2) OF
 CDENTRY)))
-             (CL:WHEN (EQ SIDE 'RIGHT)
-                    (SWAP
 FILE OTHERFILE))
-             (CL:WHEN FILE
-                 (FOR
 F INSIDE
 (IF
 (FILENAMEFIELD.STRING FILE 'VERSION)
-                                   THEN
 [IF
 ONLYONE
-                                            THEN
 FILE
-                                          ELSE
 (DREVERSE (FILDIR (PACKFILENAME.STRING 'VERSION "*"
-                                                                        'BODY FILE]
-                                 ELSE
 FILE)
-                    COLLECT
 
+        [LET
+         ((CDENTRY
 (CADR (fetch
 TIDATA of
 TBITEM)))
+          FILE OTHERFILE DELFILES)
+         (SETQ FILE (fetch
 (CDINFO FULLNAME) of
 (fetch
 (CDENTRY
 INFO1) of
 CDENTRY)))
+         (SETQ OTHERFILE (fetch
 (CDINFO FULLNAME) of
 (fetch
 (CDENTRY
 INFO2) of
 CDENTRY)))
+         (CL:WHEN (EQ SIDE 'RIGHT)
+             (SWAP
 FILE OTHERFILE)
+             (SWAP
 LABEL1 LABEL2))
+         (SETQ DELFILES (if
 (FILENAMEFIELD.STRING FILE 'VERSION)
+                            then
 [if
 ONLYONE
+                                     then
 (MKLIST FILE)
+                                   else
 (DREVERSE (FILDIR (PACKFILENAME.STRING 'VERSION "*"
+                                                                 'BODY FILE]
+                          else
 FILE))
+         (CL:WHEN DELFILES
+             (GIVE.TTY.PROCESS PWINDOW)
+             (CLEARW T)
+             (FLASHWINDOW T)
+             (CL:WHEN [OR (EQ KEY 'MIDDLE)
+                          (EQ 'Y (ASKUSER NIL 'N (CONCAT "Delete " (CL:IF (CDR DELFILES)
+                                                                       "ALL versions of "
+                                                                       "")
+                                                        LABEL1 " ? "]
+                 (for
 F in
 DELFILES
+                    collect
 
 
                           (* ;; "Delete the earlier ones first, if it goes bad, you don't want them to persist.  This preserves the original version numbers, maybe it should start fresh from 1 (or from whatever might have been deleted before).")

 
-                          (IF
 SAVE
-                              THEN
 (CL:UNLESS (RENAMEFILE F (PACKFILENAME.STRING
-                                                             'DIRECTORY
-                                                             (CONCAT "deleted>" (FILENAMEFIELD.STRING
-                                                                                 F
-                                                                                 'DIRECTORY))
-                                                             'BODY F))
-                                          (ERROR "Could not delete " F))
-                            ELSE
 (DELFILE FILE))
-                          F FINALLY
 
+                          (* ;; "Save copies locally in this browser, for potential Undelete.  Undelete would have to match all of the versions")

+
+                          (CL:UNLESS (if
 SAVE
+                                         then
 (PUTMULTI (fetch
 (TABLEBROWSER TBUSERDATA) of
 CDBROWSER
+                                                               )
+                                                     'ORIGINALFILES
+                                                     (RENAMEFILE F (PACKFILENAME.STRING
+                                                                    'DIRECTORY
+                                                                    (CONCAT "deleted>"
+                                                                           (FILENAMEFIELD.STRING
+                                                                            F
+                                                                            'DIRECTORY))
+                                                                    'BODY F)))
+                                       else
 (PUTMULTI (fetch
 (TABLEBROWSER TBUSERDATA) of
 CDBROWSER)
+                                                   'ORIGINALFILES FILE (COPYFILE FILE '{NODIRCORE}))
+                                            (DELFILE FILE))
+                                 (ERROR "Could not delete " F))
+                          F finally
 
 
                                   (* ;; "Perhaps only mark it as deleted if both files are gone?")

 
-                                  (TB.DELETE.ITEM CDBROWSER TBITEM)))])])
+                                  (CL:UNLESS DONTMARK (TB.DELETE.ITEM CDBROWSER TBITEM)))))])])
 
 (CD-SWAPDIRS

   [LAMBDA (FILE FROMDIR TODIR KEEPVERSION)
                   (* ; "Edited  2-Feb-2022 19:10 by rmk")

@@ -2258,38 +2303,43 @@
 
 (RPAQ? CD-LINELENGTH
 NIL)
 
-(RPAQQ CDTABLEBROWSER.MENUITEMS
 ((Compare CD-MENUFN)
-                                 (Copy% -> CD-MENUFN)
-                                 (Copy% <- CD-MENUFN)
-                                 (See% left CD-MENUFN)
-                                 (See% right CD-MENUFN)
-                                 (See% both CD-MENUFN)
-                                 (See CD-MENUFN)))
+(RPAQQ CDTABLEBROWSER.MENUITEMS

+       ((Compare CD-MENUFN)
+        (Copy% -> CD-MENUFN)
+        (Copy% <- CD-MENUFN)
+        (See% left CD-MENUFN)
+        (See% right CD-MENUFN)
+        (See% both CD-MENUFN)
+        (See CD-MENUFN)
+        (Delete% <- CD-MENUFN)
+        (|Delete ALL <-| CD-MENUFN)
+        (Delete% -> CD-MENUFN)
+        (|Delete ALL ->| CD-MENUFN)))
 
 (FILESLOAD (SYSLOAD)
        COMPARESOURCES COMPARETEXT)
 
 (MOVD? 'NILL 'TEDIT.FILEDATE)
 (DECLARE%: DONTCOPY
-  (FILEMAP (NIL (2655 23634 (COMPAREDIRECTORIES 2665 . 8000) (COMPAREDIRECTORIES.INFOS 8002 . 11231) (
-COMPAREDIRECTORIES.CANDIDATES 11233 . 14618) (CDENTRIES.SELECT 14620 . 19522) (
-COMPAREDIRECTORIES.INFOS.TYPE 19524 . 20868) (MATCHNAME 20870 . 21550) (CD.INSURECDVALUE 21552 . 23166
-) (CD.UPDATEWIDTHS 23168 . 23632)) (23635 34340 (CDFILES 23645 . 29742) (CDFILES.MATCH 29744 . 31369) 
-(CDFILES.PATS 31371 . 34338)) (34341 52359 (CDPRINT 34351 . 36868) (CDPRINT.HEADER 36870 . 37767) (
-CDPRINT.LINE 37769 . 41198) (CDPRINT.MAXWIDTHS 41200 . 45315) (CDPRINT.COLHEADERS 45317 . 46602) (
-CDPRINT.COLUMNS 46604 . 51724) (CDTEDIT 51726 . 52357)) (52360 61481 (CDMAP 52370 . 53802) (CDENTRY 
-53804 . 54113) (CDSUBSET 54115 . 55554) (CDMERGE 55556 . 59540) (CDMERGE.COMMON 59542 . 60857) (
-CD.SORT 60859 . 61479)) (61482 69020 (BINCOMP 61492 . 65781) (EOLTYPE 65783 . 68345) (EOLTYPE.SHOW 
-68347 . 69018)) (69548 82075 (FIND-UNCOMPILED-FILES 69558 . 73201) (FIND-UNSOURCED-FILES 73203 . 75587
-) (FIND-SOURCE-FILES 75589 . 77327) (FIND-COMPILED-FILES 77329 . 79206) (FIND-UNLOADED-FILES 79208 . 
-80061) (FIND-LOADED-FILES 80063 . 80491) (FIND-MULTICOMPILED-FILES 80493 . 82073)) (82076 90507 (
-CREATED-AS 82086 . 86883) (SOURCE-FOR-COMPILED-P 86885 . 89812) (COMPILE-SOURCE-DATE-DIFF 89814 . 
-90505)) (90508 101271 (FIX-DIRECTORY-DATES 90518 . 93968) (FIX-EQUIV-DATES 93970 . 95495) (
-COPY-COMPARED-FILES 95497 . 97318) (COPY-MISSING-FILES 97320 . 99477) (COMPILED-ON-SAME-SOURCE 99479
- . 101269)) (101465 109303 (CDBROWSER 101475 . 105402) (CDBROWSER.STRINGS 105404 . 109301)) (109465 
-111201 (CD.TABLEITEM 109475 . 109695) (CD.TABLEITEM.PRINTFN 109697 . 109896) (CD.TABLEITEM.COPYFN 
-109898 . 110956) (CDTABLEBROWSER.HEADING.REPAINTFN 110958 . 111199)) (111202 134851 (
-CDTABLEBROWSER.WHENSELECTEDFN 111212 . 111680) (CD.COMMANDSELECTEDFN 111682 . 116783) (CD-MENUFN 
-116785 . 123011) (CD-COMPARE-FILES 123013 . 126365) (CDBROWSER-COPY 126367 . 131115) (
-CDBROWSER-DELETE-FILE 131117 . 134330) (CD-SWAPDIRS 134332 . 134849)))))
+  (FILEMAP (NIL (2668 23647 (COMPAREDIRECTORIES 2678 . 8013) (COMPAREDIRECTORIES.INFOS 8015 . 11244) (
+COMPAREDIRECTORIES.CANDIDATES 11246 . 14631) (CDENTRIES.SELECT 14633 . 19535) (
+COMPAREDIRECTORIES.INFOS.TYPE 19537 . 20881) (MATCHNAME 20883 . 21563) (CD.INSURECDVALUE 21565 . 23179
+) (CD.UPDATEWIDTHS 23181 . 23645)) (23648 34353 (CDFILES 23658 . 29755) (CDFILES.MATCH 29757 . 31382) 
+(CDFILES.PATS 31384 . 34351)) (34354 52372 (CDPRINT 34364 . 36881) (CDPRINT.HEADER 36883 . 37780) (
+CDPRINT.LINE 37782 . 41211) (CDPRINT.MAXWIDTHS 41213 . 45328) (CDPRINT.COLHEADERS 45330 . 46615) (
+CDPRINT.COLUMNS 46617 . 51737) (CDTEDIT 51739 . 52370)) (52373 61494 (CDMAP 52383 . 53815) (CDENTRY 
+53817 . 54126) (CDSUBSET 54128 . 55567) (CDMERGE 55569 . 59553) (CDMERGE.COMMON 59555 . 60870) (
+CD.SORT 60872 . 61492)) (61495 69033 (BINCOMP 61505 . 65794) (EOLTYPE 65796 . 68358) (EOLTYPE.SHOW 
+68360 . 69031)) (69561 82088 (FIND-UNCOMPILED-FILES 69571 . 73214) (FIND-UNSOURCED-FILES 73216 . 75600
+) (FIND-SOURCE-FILES 75602 . 77340) (FIND-COMPILED-FILES 77342 . 79219) (FIND-UNLOADED-FILES 79221 . 
+80074) (FIND-LOADED-FILES 80076 . 80504) (FIND-MULTICOMPILED-FILES 80506 . 82086)) (82089 90520 (
+CREATED-AS 82099 . 86896) (SOURCE-FOR-COMPILED-P 86898 . 89825) (COMPILE-SOURCE-DATE-DIFF 89827 . 
+90518)) (90521 101284 (FIX-DIRECTORY-DATES 90531 . 93981) (FIX-EQUIV-DATES 93983 . 95508) (
+COPY-COMPARED-FILES 95510 . 97331) (COPY-MISSING-FILES 97333 . 99490) (COMPILED-ON-SAME-SOURCE 99492
+ . 101282)) (101478 109356 (CDBROWSER 101488 . 105455) (CDBROWSER.STRINGS 105457 . 109354)) (109518 
+111254 (CD.TABLEITEM 109528 . 109748) (CD.TABLEITEM.PRINTFN 109750 . 109949) (CD.TABLEITEM.COPYFN 
+109951 . 111009) (CDTABLEBROWSER.HEADING.REPAINTFN 111011 . 111252)) (111255 138020 (
+CDTABLEBROWSER.WHENSELECTEDFN 111265 . 111733) (CD.COMMANDSELECTEDFN 111735 . 117908) (CD-MENUFN 
+117910 . 124301) (CD-COMPARE-FILES 124303 . 127830) (CDBROWSER-COPY 127832 . 132894) (
+CDBROWSER-DELETE-FILE 132896 . 137499) (CD-SWAPDIRS 137501 . 138018)))))
 STOP
diff --git a/lispusers/COMPAREDIRECTORIES.LCOM b/lispusers/COMPAREDIRECTORIES.LCOM
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diff --git a/lispusers/EXAMINEDEFS b/lispusers/EXAMINEDEFS
index 0ec8b973..5c5ef0f1 100644
--- a/lispusers/EXAMINEDEFS
+++ b/lispusers/EXAMINEDEFS
@@ -1,12 +1,12 @@
 (DEFINE-FILE-INFO PACKAGE "INTERLISP" READTABLE "INTERLISP" BASE 10)
 
-
(FILECREATED "25-Oct-2025 10:24:30" {WMEDLEY}<lispusers>EXAMINEDEFS.;59
 17123  
+
(FILECREATED "28-Oct-2025 14:24:17" {WMEDLEY}<lispusers>EXAMINEDEFS.;60
 17313  
 
       :EDIT-BY rmk
 
-      :CHANGES-TO (FNS EXAMINEDEFS)
+      :CHANGES-TO (FNS EXAMINEFILES)
 
-      :PREVIOUS-DATE " 6-Apr-2025 23:54:50" {WMEDLEY}<lispusers>EXAMINEDEFS.;57)
+      :PREVIOUS-DATE "25-Oct-2025 10:24:30" {WMEDLEY}<lispusers>EXAMINEDEFS.;59)
 
 
 (PRETTYCOMPRINT EXAMINEDEFSCOMS)
@@ -173,7 +173,8 @@
                     (EDITE DEF2])
 
 (EXAMINEFILES

-  [LAMBDA (FILE1 FILE2 TITLE1 TITLE2 REGION)
                 (* ; "Edited 19-Jul-2023 13:48 by rmk")


+  [LAMBDA (FILE1 FILE2 TITLE1 TITLE2 REGION)
                 (* ; "Edited 28-Oct-2025 14:23 by rmk")


+                                                             (* ; "Edited 19-Jul-2023 13:48 by rmk")


                                                              (* ; "Edited  1-Feb-2022 23:15 by rmk")


                                                              (* ; "Edited 25-Jan-2022 10:08 by rmk")


                                                              (* ; "Edited  2-Jan-2022 23:15 by rmk")


@@ -183,7 +184,8 @@
 
     (CL:UNLESS REGION
         (SETQ REGION (GETREGION)))
-    (LIST (AND (INFILEP FILE1)
+    (LIST (AND (OR (STREAMP FILE1)
+                   (INFILEP FILE1))
                (TEDIT-SEE FILE1 (RELCREATEREGION `(,REGION 0.5 -1)
                                        REGION
                                        'RIGHT
@@ -191,7 +193,8 @@
                                        `(,REGION 0.5)
                                        (FETCH
 (REGION TOP) OF
 REGION))
                       NIL TITLE1))
-          (AND (INFILEP FILE2)
+          (AND (OR (STREAMP FILE2)
+                   (INFILEP FILE2))
                (TEDIT-SEE FILE2 (RELCREATEREGION `(,REGION 0.5 1)
                                        REGION
                                        'LEFT
@@ -284,6 +287,6 @@
 (FILESLOAD (SYSLOAD)
        COMPARETEXT VERSIONDEFS)
 (DECLARE%: DONTCOPY
-  (FILEMAP (NIL (665 16892 (EXAMINEDEFS 675 . 11290) (EXAMINEFILES 11292 . 12774) (TEDITDEF 12776 . 
-15098) (EXVV 15100 . 16890)))))
+  (FILEMAP (NIL (666 17082 (EXAMINEDEFS 676 . 11291) (EXAMINEFILES 11293 . 12964) (TEDITDEF 12966 . 
+15288) (EXVV 15290 . 17080)))))
 STOP
diff --git a/lispusers/EXAMINEDEFS.LCOM b/lispusers/EXAMINEDEFS.LCOM
index 4db3ff8c8dcb30b16ff0ffbf65926f996960a94c..afc886acbce4571a7eaec1dc69d45b8adbe246e0 100644
GIT binary patch
delta 435
zcmZvXzfQtX7{%Mchy*92gNgB^E;OM{zuW(H0p)^CDs9?g+zg6?A#q~&2{e*E1g?a|
zjnyac6?_eE(IAOT-=F*a&N+9{_-edf?|E8$H`bWJY>*W&D<F3=G7lX?MO9(W->cyV
zL;?Ae_oG24jCh8JM<|_s6k+{L*L4NM!T5f-k!QZ5R_i5yp7K`C+fdks2*pf3*>((&
zYf^C|*Y}r>DuN{CS7F@Gw6=hYWBGLcDZf<@3Q3Z-+S7_C(rsnY+$o!B@my=k)8eCc
z_GA%+S(s}X=OEKU%A=nIDes1H51xmxSGpwd2w5)DT_$ktHO%q;QH-r9vR9OYE*Ao&
yuJ|k&KAL%)fD8)}@8qydl(Q-H!tO;bZa@OB8@jE+cb5%Fh2{V5Oq$PjUn<`RAZf<{

delta 382
zcmZvXze>YU6vl}nNQs*+g76WSM3Rtub8pf{2aCC>k<gSR6-UK7I4DxOIf#R+815`M
zy4S(Y2k-@S5uAJt(?+nM+c}5d`Tl&FFXr8Wd{9=(GqTEC1{xY=R(d?Ls6#mj2`C8|
zE1%c)LJ{RSJ%<+clLWJrZQB|KN28O$zwexBMnjL{MC@duU5HTLE1L@-KB4kZ(KjZ-
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m1zc~sx|M<+cXo@40C5O($L0o_?sNb#!06A7vhn-U?cz6pk6@Mn

diff --git a/lispusers/GITFNS b/lispusers/GITFNS
index 015d1e52..4b5cbe62 100644
--- a/lispusers/GITFNS
+++ b/lispusers/GITFNS
@@ -1,12 +1,12 @@
 (DEFINE-FILE-INFO PACKAGE "INTERLISP" READTABLE "INTERLISP" BASE 10)
 
-
(FILECREATED "26-Oct-2025 00:01:44" {WMEDLEY}<lispusers>GITFNS.;565
 135222 
+
(FILECREATED "28-Oct-2025 14:10:06" {WMEDLEY}<lispusers>GITFNS.;569
 131593 
 
       :EDIT-BY rmk
 
-      :CHANGES-TO (FNS GIT-WORKING-COMPARE-DIRECTORIES GIT-CD-MENUFN GIT-MAKE-PROJECT GIT-CLONEP)
+      :CHANGES-TO (FNS GIT-WORKING-COMPARE-DIRECTORIES GIT-BRANCHES-COMPARE-DIRECTORIES)
 
-      :PREVIOUS-DATE "25-Oct-2025 10:37:40" {WMEDLEY}<lispusers>GITFNS.;562)
+      :PREVIOUS-DATE "28-Oct-2025 13:32:16" {WMEDLEY}<lispusers>GITFNS.;568)
 
 
 (PRETTYCOMPRINT GITFNSCOMS)
@@ -59,7 +59,7 @@
         (* ;; "File correspondents")

 
         (FNS ALLSUBDIRS MEDLEYSUBDIRS GITSUBDIRS)
-        (FNS TOGIT FROMGIT GIT-DELETE-FILE MYMEDLEY-DELETE-FILES)
+        (FNS TOGIT FROMGIT)
         (FNS MYMEDLEYSUBDIR GITSUBDIR STRIPDIR STRIPHOST STRIPNAME STRIPWHERE)
         (FNS GFILE4MFILE MFILE4GFILE GIT-REPO-FILENAME)
         
@@ -720,46 +720,6 @@
                            (CONCAT GF " cannot be copied"))
                     T)
              DEST])
-
-(GIT-DELETE-FILE

-  [LAMBDA (FILE PROJECT)
                                     (* ; "Edited  8-May-2022 09:27 by rmk")


-                                                             (* ; "Edited 18-Jan-2022 23:07 by rmk")


-                                                             (* ; "Edited 19-Dec-2021 16:11 by rmk")


-                                                             (* ; "Edited 16-Dec-2021 13:00 by rmk")

-
-    (* ;; "This deletes a file in the local checkout git directory {UNIX}...  FILE has to already be a full file name, for safety.")

-
-    (* ;; "Since git files are on UNIX, we don't have to worry about older version numbers. ")

-
-    (* ;; "We could make this undoable by copying it to deleted/, but git also can restore.")

-
-    (GIT-CLONEP
 FILE NIL T)
-    (DELFILE FILE])
-
-(MYMEDLEY-DELETE-FILES

-  [LAMBDA (FILE PROJECT)
                                     (* ; "Edited 13-May-2022 10:40 by rmk")


-                                                             (* ; "Edited  8-May-2022 23:31 by rmk")

-
-    (* ;; "FILE is presumably the latest version of a file in the MyMedley directory, and we are presumably removing all versions of that file.  If we left older versions, we would really trash ourselves.")

-
-    (* ;; "But to guard against mistakes, %"deletion%" consists of moving all versions of the file from its current location to a deleted/ subdirectory of MEDLEYDIR, one that does not correspond to a git subdirectory.")

-
-    (SETQ FILE (CONTRACT.PH FILE (FETCH
 WHOST OF
 PROJECT)))
-    (CL:WHEN (EQ (FILENAMEFIELD (FETCH
 WHOST OF
 PROJECT)
-                        'HOST)
-                 (FILENAMEFIELD FILE 'HOST))
-        (FOR
 F IN
 (DREVERSE (FILDIR (PACKFILENAME 'VERSION '* 'BODY FILE)))
-           COLLECT
 
-
-                 (* ;; 
-
                 "Delete the earlier ones first, if it goes bad, you don't want them to persist")

-
-                 (CL:UNLESS (RENAMEFILE F (PACKFILENAME 'DIRECTORY (CONCAT "deleted>"
-                                                                          (FILENAMEFIELD F
-                                                                                 'DIRECTORY))
-                                                 'BODY F))
-                        (ERROR "Could not delete " F))
-                 F))])
 )
 (DEFINEQ
 
@@ -1846,7 +1806,8 @@
          (LIST DIR1 DIR2 MAPPINGS))])
 
 (GIT-BRANCHES-COMPARE-DIRECTORIES

-  [LAMBDA (BRANCH1 BRANCH2 LOCAL PROJECT)
                    (* ; "Edited  2-Oct-2025 23:12 by rmk")


+  [LAMBDA (BRANCH1 BRANCH2 LOCAL PROJECT)
                    (* ; "Edited 28-Oct-2025 14:01 by rmk")


+                                                             (* ; "Edited  2-Oct-2025 23:12 by rmk")


                                                              (* ; "Edited 12-Jun-2024 22:52 by mth")


                                                              (* ; "Edited 10-Jun-2024 18:42 by mth")


                                                              (* ; "Edited  1-May-2024 14:58 by rmk")


@@ -1938,8 +1899,10 @@
                                                      (LENGTH (fetch
 (CDVALUE CDENTRIES) of
 CDVALUE))
                                                      " files")
                                   (LIST SHORT1 SHORT2)
-                                  `(LABELFN GIT-CD-LABELFN BRANCH1 ,BRANCH1 BRANCH2 ,BRANCH2 PROJECT
-                                          ,PROJECT)
+                                  `((LABELFN . GIT-CD-LABELFN)
+                                    (BRANCH1 ,@BRANCH1)
+                                    (BRANCH2 ,@BRANCH2)
+                                    (PROJECT ,@PROJECT))
                                   GIT-CDBROWSER-SEPARATE-DIRECTIONS
                                   `(Compare See))
                            (SETQ NENTRIES (LENGTH (fetch
 (CDVALUE CDENTRIES) of
 CDVALUE)))
@@ -1952,6 +1915,8 @@
 (GIT-WORKING-COMPARE-DIRECTORIES

   [LAMBDA (SUBDIRS SELECT EXCLUDEDFILES FIXDIRECTORYDATES UPDATE PROJECT)
 
+    (* ;; "Edited 28-Oct-2025 14:00 by rmk")

+
     (* ;; "Edited 25-Oct-2025 23:32 by rmk")

 
     (* ;; "Edited 29-Apr-2025 15:14 by rmk")

@@ -2031,9 +1996,12 @@
                      do
 (SETQ TITLE (CONCAT WPROJ "  vs.   " BRANCH2 "      " SUBDIR "         "
                                            (LENGTH (fetch
 (CDVALUE CDENTRIES) of
 CDVAL))
                                            " files"))
-                        [CDBROWSER CDVAL TITLE `(,WPROJ ,BRANCH2)
-                               `(BRANCH1 ,WPROJ BRANCH2 ,BRANCH2 SUBDIR ,SUBDIR LABELFN 
-                                       GIT-CD-LABELFN PROJECT ,PROJECT)
+                        [CDBROWSER CDVAL TITLE `(,WPROJ ,@BRANCH2)
+                               `((BRANCH1 ,@WPROJ)
+                                 (BRANCH2 ,@BRANCH2)
+                                 (SUBDIR ,@SUBDIR)
+                                 (LABELFN . GIT-CD-LABELFN)
+                                 (PROJECT ,@PROJECT))
                                GIT-CDBROWSER-SEPARATE-DIRECTIONS
                                `(Compare See "" Copy% <- (|Delete ALL <-| GIT-CD-MENUFN)
                                        ,@(CL:UNLESS (GIT-MAINBRANCH?
 BRANCH2 PROJECT T)
@@ -2213,7 +2181,8 @@
                (OR LABEL2 FILE2])
 
 (GIT-CD-MENUFN

-  [LAMBDA (TBITEM MENUITEM CDBROWSER KEY)
                    (* ; "Edited 25-Oct-2025 23:44 by rmk")


+  [LAMBDA (TBITEM MENUITEM CDBROWSER KEY)
                    (* ; "Edited 28-Oct-2025 11:50 by rmk")


+                                                             (* ; "Edited 25-Oct-2025 23:44 by rmk")


                                                              (* ; "Edited 21-Sep-2022 21:34 by rmk")


                                                              (* ; "Edited 22-May-2022 19:13 by rmk")


                                                              (* ; "Edited  8-May-2022 09:26 by rmk")


@@ -2221,35 +2190,9 @@
 
     (* ;; "MENUITEM is of the form (display-atom <this function> . extrainfo).  The selector for the selectq is either the CAR of the extrainfo or the display atom")

 
-    (DECLARE
 (USEDFREE FILE1 FILE2 LABEL2 TYPE CDENTRY))
+    (DECLARE
 (USEDFREE FILE1 FILE2 LABEL2 TYPE CDENTRY USERDATA PWINDOW))
     (SELECTQ (OR (CADDR MENUITEM)
                  (CAR MENUITEM))
-        (Delete% -> (FLASHWINDOW PWINDOW)
-                    (GIVE.TTY.PROCESS PWINDOW)
-                    (CL:WHEN [OR (EQ KEY 'MIDDLE)
-                                 (EQ 'Y (ASKUSER NIL 'N (CONCAT "Delete " LABEL2 " ? "]
-                        (GIT-DELETE-FILE
 FILE2 (LISTGET USERDATA 'PROJECT))
-                        (TB.DELETE.ITEM CDBROWSER TBITEM)))
-        (|Delete ALL <-| 
-             (FLASHWINDOW PWINDOW)
-             (GIVE.TTY.PROCESS PWINDOW)
-             (if
 (NAMEFIELD LABEL1 T)
-                 then
 (CL:WHEN [OR (EQ KEY 'MIDDLE)
-                                   (EQ 'Y (ASKUSER NIL 'N (CONCAT "Delete ALL versions of "
-                                                                 (NAMEFIELD LABEL1 T)
-                                                                 " ? "]
-                          (MYMEDLEY-DELETE-FILES
 FILE1 (LISTGET USERDATA 'PROJECT))
-                          (TB.DELETE.ITEM CDBROWSER TBITEM))
-               else
 (PRINTOUT T "Nothing to delete")))
-        (Delete% BOTH (FLASHWINDOW PWINDOW)
-                      (GIVE.TTY.PROCESS PWINDOW)
-                      (CL:WHEN (EQ 'Y (ASKUSER NIL 'N (CONCAT 
-                                                             "Delete all Medley and git versions of "
-                                                             (NAMEFIELD LABEL1 T)
-                                                             " ? ")))
-                          (GIT-DELETE-FILE
 FILE2 (LISTGET USERDATA 'PROJECT))
-                          (MYMEDLEY-DELETE-FILES
 FILE1 (LISTGET USERDATA 'PROJECT))
-                          (TB.DELETE.ITEM CDBROWSER TBITEM)))
         (Copy% -> (CDBROWSER-COPY CDBROWSER TBITEM 'LEFT (CADDDR MENUITEM)))
         (SHOULDNT])
 
@@ -2451,33 +2394,32 @@
 
 (PUTPROPS GITFNS
 FILETYPE
 :TCOMPL)
 (DECLARE%: DONTCOPY
-  (FILEMAP (NIL (4243 21049 (GIT-CLONEP 4253 . 5684) (GIT-INIT 5686 . 6316) (GIT-MAKE-PROJECT 6318 . 
-14107) (GIT-GET-PROJECT 14109 . 16034) (GIT-PUT-PROJECT-FIELD 16036 . 17677) (GIT-PROJECT-PATH 17679
- . 18723) (FIND-ANCESTOR-DIRECTORY 18725 . 19074) (GIT-FIND-CLONE 19076 . 20157) (GIT-MAINBRANCH 20159
- . 20554) (GIT-MAINBRANCH? 20556 . 21047)) (26512 31441 (PRC-COMMAND 26522 . 31439)) (31497 34285 (
-ALLSUBDIRS 31507 . 32793) (MEDLEYSUBDIRS 32795 . 33488) (GITSUBDIRS 33490 . 34283)) (34286 39076 (
-TOGIT 34296 . 35702) (FROMGIT 35704 . 36685) (GIT-DELETE-FILE 36687 . 37533) (MYMEDLEY-DELETE-FILES 
-37535 . 39074)) (39077 42080 (MYMEDLEYSUBDIR 39087 . 39543) (GITSUBDIR 39545 . 39988) (STRIPDIR 39990
- . 40361) (STRIPHOST 40363 . 40603) (STRIPNAME 40605 . 41358) (STRIPWHERE 41360 . 42078)) (42081 44316
- (GFILE4MFILE 42091 . 42787) (MFILE4GFILE 42789 . 43358) (GIT-REPO-FILENAME 43360 . 44314)) (44365 
-54620 (GIT-COMMIT 44375 . 45201) (GIT-PUSH 45203 . 45963) (GIT-PULL 45965 . 46717) (GIT-APPROVAL 46719
- . 47068) (GIT-GET-FILE 47070 . 48985) (GIT-FILE-EXISTS? 48987 . 49261) (GIT-REMOTE-UPDATE 49263 . 
-50098) (GIT-REMOTE-ADD 50100 . 50407) (GIT-FILE-DATE 50409 . 51456) (GIT-FILE-HISTORY 51458 . 53392) (
-GIT-PRINT-FILE-HISTORY 53394 . 54444) (GIT-FETCH 54446 . 54618)) (54650 66130 (GIT-BRANCH-DIFF 54660
- . 61549) (GIT-COMMIT-DIFFS 61551 . 62442) (GIT-BRANCH-RELATIONS 62444 . 66128)) (66175 84914 (
-GIT-BRANCH-NUM 66185 . 66758) (GIT-CHECKOUT 66760 . 68046) (GIT-WHICH-BRANCH 68048 . 68455) (
-GIT-MAKE-BRANCH 68457 . 71036) (GIT-BRANCHES 71038 . 73633) (GIT-BRANCH-EXISTS? 73635 . 74506) (
-GIT-PICK-BRANCH 74508 . 74998) (GIT-BRANCH-MENU 75000 . 75881) (GIT-BRANCH-WHENSELECTEDFN 75883 . 
-77422) (GIT-PULL-REQUESTS 77424 . 81295) (GIT-SHORT-BRANCH-NAME 81297 . 81588) (GIT-LONG-NAME 81590 . 
-81907) (GIT-PRC-BRANCHES 81909 . 84912)) (84944 88392 (GIT-MY-CURRENT-BRANCH 84954 . 85324) (
-GIT-MY-BRANCHP 85326 . 85944) (GIT-MY-NEXT-BRANCH 85946 . 86440) (GIT-MY-BRANCHES 86442 . 88390)) (
-88438 92513 (GIT-ADD-WORKTREE 88448 . 90055) (GIT-REMOVE-WORKTREE 90057 . 90987) (GIT-LIST-WORKTREES 
-90989 . 91793) (WORKTREEDIR 91795 . 92511)) (92561 126762 (GIT-GET-DIFFERENT-FILES 92571 . 99479) (
-GIT-BRANCHES-COMPARE-DIRECTORIES 99481 . 106920) (GIT-WORKING-COMPARE-DIRECTORIES 106922 . 112559) (
-GIT-COMPARE-WORKTREE 112561 . 116539) (GITCDOBJBUTTONFN 116541 . 121031) (GIT-CD-LABELFN 121033 . 
-122115) (GIT-CD-MENUFN 122117 . 124743) (GIT-WORKING-COMPARE-FILES 124745 . 125365) (
-GIT-BRANCHES-COMPARE-FILES 125367 . 126531) (GIT-PR-COMPARE 126533 . 126760)) (126832 135155 (CDGITDIR
- 126842 . 127529) (GIT-COMMAND 127531 . 129089) (GITORIGIN 129091 . 129788) (GIT-INITIALS 129790 . 
-130094) (GIT-COMMAND-TO-FILE 130096 . 133581) (GIT-RESULT-TO-LINES 133583 . 134488) (STRIPLOCAL 134490
- . 135153)))))
+  (FILEMAP (NIL (4196 21002 (GIT-CLONEP 4206 . 5637) (GIT-INIT 5639 . 6269) (GIT-MAKE-PROJECT 6271 . 
+14060) (GIT-GET-PROJECT 14062 . 15987) (GIT-PUT-PROJECT-FIELD 15989 . 17630) (GIT-PROJECT-PATH 17632
+ . 18676) (FIND-ANCESTOR-DIRECTORY 18678 . 19027) (GIT-FIND-CLONE 19029 . 20110) (GIT-MAINBRANCH 20112
+ . 20507) (GIT-MAINBRANCH? 20509 . 21000)) (26465 31394 (PRC-COMMAND 26475 . 31392)) (31450 34238 (
+ALLSUBDIRS 31460 . 32746) (MEDLEYSUBDIRS 32748 . 33441) (GITSUBDIRS 33443 . 34236)) (34239 36640 (
+TOGIT 34249 . 35655) (FROMGIT 35657 . 36638)) (36641 39644 (MYMEDLEYSUBDIR 36651 . 37107) (GITSUBDIR 
+37109 . 37552) (STRIPDIR 37554 . 37925) (STRIPHOST 37927 . 38167) (STRIPNAME 38169 . 38922) (
+STRIPWHERE 38924 . 39642)) (39645 41880 (GFILE4MFILE 39655 . 40351) (MFILE4GFILE 40353 . 40922) (
+GIT-REPO-FILENAME 40924 . 41878)) (41929 52184 (GIT-COMMIT 41939 . 42765) (GIT-PUSH 42767 . 43527) (
+GIT-PULL 43529 . 44281) (GIT-APPROVAL 44283 . 44632) (GIT-GET-FILE 44634 . 46549) (GIT-FILE-EXISTS? 
+46551 . 46825) (GIT-REMOTE-UPDATE 46827 . 47662) (GIT-REMOTE-ADD 47664 . 47971) (GIT-FILE-DATE 47973
+ . 49020) (GIT-FILE-HISTORY 49022 . 50956) (GIT-PRINT-FILE-HISTORY 50958 . 52008) (GIT-FETCH 52010 . 
+52182)) (52214 63694 (GIT-BRANCH-DIFF 52224 . 59113) (GIT-COMMIT-DIFFS 59115 . 60006) (
+GIT-BRANCH-RELATIONS 60008 . 63692)) (63739 82478 (GIT-BRANCH-NUM 63749 . 64322) (GIT-CHECKOUT 64324
+ . 65610) (GIT-WHICH-BRANCH 65612 . 66019) (GIT-MAKE-BRANCH 66021 . 68600) (GIT-BRANCHES 68602 . 71197
+) (GIT-BRANCH-EXISTS? 71199 . 72070) (GIT-PICK-BRANCH 72072 . 72562) (GIT-BRANCH-MENU 72564 . 73445) (
+GIT-BRANCH-WHENSELECTEDFN 73447 . 74986) (GIT-PULL-REQUESTS 74988 . 78859) (GIT-SHORT-BRANCH-NAME 
+78861 . 79152) (GIT-LONG-NAME 79154 . 79471) (GIT-PRC-BRANCHES 79473 . 82476)) (82508 85956 (
+GIT-MY-CURRENT-BRANCH 82518 . 82888) (GIT-MY-BRANCHP 82890 . 83508) (GIT-MY-NEXT-BRANCH 83510 . 84004)
+ (GIT-MY-BRANCHES 84006 . 85954)) (86002 90077 (GIT-ADD-WORKTREE 86012 . 87619) (GIT-REMOVE-WORKTREE 
+87621 . 88551) (GIT-LIST-WORKTREES 88553 . 89357) (WORKTREEDIR 89359 . 90075)) (90125 123133 (
+GIT-GET-DIFFERENT-FILES 90135 . 97043) (GIT-BRANCHES-COMPARE-DIRECTORIES 97045 . 104672) (
+GIT-WORKING-COMPARE-DIRECTORIES 104674 . 110470) (GIT-COMPARE-WORKTREE 110472 . 114450) (
+GITCDOBJBUTTONFN 114452 . 118942) (GIT-CD-LABELFN 118944 . 120026) (GIT-CD-MENUFN 120028 . 121114) (
+GIT-WORKING-COMPARE-FILES 121116 . 121736) (GIT-BRANCHES-COMPARE-FILES 121738 . 122902) (
+GIT-PR-COMPARE 122904 . 123131)) (123203 131526 (CDGITDIR 123213 . 123900) (GIT-COMMAND 123902 . 
+125460) (GITORIGIN 125462 . 126159) (GIT-INITIALS 126161 . 126465) (GIT-COMMAND-TO-FILE 126467 . 
+129952) (GIT-RESULT-TO-LINES 129954 . 130859) (STRIPLOCAL 130861 . 131524)))))
 STOP
diff --git a/lispusers/GITFNS.LCOM b/lispusers/GITFNS.LCOM
index bab7dfcc933210d33787ba9e69c4647ac1d9dff4..da2bc98b7f8783b479ba3cdfc38fb8c749b7fedc 100644
GIT binary patch
delta 1725
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zaGR!+G$R?%R1HiknsNrxb_z6E&v!4~=lbPRw5CCm6fh?yZ?r(W02;Cu&xR{z**mKy
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zkNH3%BD**LEc<xn6#Ht$<b3%*SFWCJ^TG(kfPyE|AaLDf6=ju?@^WsoGQwp&DE_$X
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ROI9trwR<Z6#qODB{srS1%Wwby

delta 2493
zcmZ`*O>7fK6!s<&1%t}3C<Fu#Ly8U9?9Bez7SPzc>v)O1Yt{~65C_19M5Kg5l9ocT
z67|vplyoHidZ5QjRe!)XX)9HzhgL1eiuO{er%F|kTG6VfR#p3UHcm`RBW3oRnKy6V
zy!XvFzICPZE7p1S;7T>>93PERkt!f2k|dr~l&Mo<O^HA-MCG|jLXwmuWjO?+$46c~
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z0Fe|*DZ4Bfi*zHJH|>Fp&89wF9o2J=Z5ASsEV$-=%NZy}4Rq#3th7ZeCM7K?i&Gas
zpmn9=o6zDus}wcNoLMrX?1ymo5igJk1eOH?fsWq6p~d(O^e*z+Wq~k}0Bt=J(7;<c
zvun_{a=~yUm@nr|BWIRd9zDw<B#n45TmT6&?6LY>E$~j4=R4KW(IEsq$HxL3pY$*v
z=$(U)8{^Bx4&I+@dY5>nJSg6LWLJdcLT5j>81d$O$er<q&-C+UH9qj3Z^rTc{uLiv
z&1bTM-G?T!&wtX<*{tv7ht<GzUB?B2OmIy*l{fj(2^FD`()+!RHwZ*bfbQ6Os)SI6
z)_BG;a|UP%7+4b1En?C{$keQyVY#3xPx_GJ^VU&q-T)E3O-gP`FU1O3<P0G)q#dIS
zi3FfaQ!hDg8RGG_j*{>#6dAUGoB#}?uV^_oND^e7VhJeaU-X95A`sF?#)d0!dSnzT
z)#2)B6+)1ZAmn!{dyuNF8ne%PV)flU)6S|-7jy->bY6*L3woQKlXrwS*}}1g@H_i#
z?1*rMts7T1%~g*hzr-ny^}%lZW2eTq%VT^1`^$KJX4*hlCaT9b$F=$_3?2`RsqZUg
z5z_jD@oAw#WvC3DI8i-YJ$<}-4rDCJTpuJg0R`9Di#b9pLE25(dX|EuXfv1~raq^Q
zXfBmTn&U>Y1}#iA%BJpZVn4m28VLxCZSK!SK*og5ACuxLgmqMgqi3s7tX3nKbxbjw
z7#gmg3$cmw8-yUceSR-{bbgBvtUvqeZ9yp4Ke%wPW6|F{4|f88vZa@d9heW^w|MJw
z+mU%^t}%HQyV=W^CZwPFu$RU_I4-HJWNFBa8J=oLOWjDj&Vi!oB1hHw_S%<1O(E^a
z0!@}cA31Zr2X;k4!z1D;K%?ko=2RM{xs_K9sn0cGE`O?5sF_@<2@1u5H0M4hrd0to
zF3wg!W&0*}2jj@MogvUv%5F@gg*f|uVoO&XLLnBKOtb3bcFfw<NxlAX^3=-y0Sq67
zE(IB&{#FDbN)6skipal>-k9P~(+CKM0}BFOs5wHjD<xETt{&elv7u|5gaP*W+G-mq
z9Qd`kkI!u78j<ehpJgrUk^2Qsc)xXr`0U-h?mMgR9OQtL*kzBdt>5Xne7*EEm)yvA
zFzfyh+i`u3z*lbA{6rx0U9i`#hikG7#jG=sGi;<cD#>hRqq<WlgG4Bl(lKA=V^+z`
zgCr`@y2($fHN`r$Jqld$s74@F<jDrAsx1;xMFmd)YrfJ^+_}%%Z^lZcatv9ao5dnf
z3Coa66|)B{+i(s5B`AEZWfP#HG(RemQ2!??(iQ=ki-7P5ik>igT1!wgeVO)q;(z1u
zM6*4fgf>5jgtw~19^A;*km)%ygE=K0<-L0l-2)U!-Qqk&CeLC`g)%<;GT11q6bvq)
zJt)AaQv|)X3<)<R+z{V$$Xf<Jn*8aw=r4j4{)E^SU3?MZ^2{<ebu+v~_2lCP{HJn)
zeQ|SJ55@ZzvPVV-hfbe_(UBR^4gs09Byys@>ejbwVi25P)u+}!0^y8Z1oqoq74O;B
zdW7w(#}U0z-^Lns5z&wJ7+cx!#`+sQ?4^c==-oz?eb?}27c_y1<!+X0hOsx)+{`XF
zcOm+^xsCnNj3U}}FToDq+sOVJUd!G>L498U9DR6C@Ad*b;JE#k-G{`@7gDYn_4tS3
iOufCH<);a&O|M1c8`HgPD!q#RGQ9$Y^PlN;OaBG_C2ynv


From 696d34cb9d7f83b90ae56cd1bebf36cea61ea4e9 Mon Sep 17 00:00:00 2001
From: Larry Masinter <lmm@acm.org>
Date: Tue, 18 Nov 2025 11:17:46 -0800
Subject: [PATCH 07/20] Add BACKGROUND-YIELD to Lisp.sysout (and thus to
 FULL.SYSOUT) so you don't need to load it in INITs. (#2357)

* Add BACKGROUND-YIELD to Lisp.sysout (and thus to FULL.SYSOUT) so you don't need to load it in INITs.
* remove CAUSE-INTERRUPT subr call; doesn't add value
---
 internal/loadups/LOADUP-LISP      |  15 ++++++++++-----
 internal/loadups/LOADUP-LISP.LCOM | Bin 3607 -> 3704 bytes
 lispusers/BACKGROUND-YIELD        |  15 ++++++++-------
 lispusers/BACKGROUND-YIELD.LCOM   | Bin 1215 -> 1239 bytes
 4 files changed, 18 insertions(+), 12 deletions(-)

diff --git a/internal/loadups/LOADUP-LISP b/internal/loadups/LOADUP-LISP
index a84822fe..23875a66 100644
--- a/internal/loadups/LOADUP-LISP
+++ b/internal/loadups/LOADUP-LISP
@@ -1,12 +1,13 @@
 (DEFINE-FILE-INFO PACKAGE "INTERLISP" READTABLE "XCL" BASE 10)
 
-
(FILECREATED "16-Oct-2025 16:55:27" |{WMEDLEY}<internal>loadups>LOADUP-LISP.;22|
 7104   
+
(FILECREATED " 5-Nov-2025 09:04:36" |{DSK}<Users>larry>il>MEDLEY>INTERNAL>loadups>LOADUP-LISP.;2|
 7333   
 
-      :EDIT-BY |rmk|
+      :EDIT-BY "lmm"
 
       :CHANGES-TO (FNS LOADUP-LISP)
 
-      :PREVIOUS-DATE "18-Aug-2025 12:09:49" |{WMEDLEY}<internal>loadups>LOADUP-LISP.;21|)
+      :PREVIOUS-DATE "16-Oct-2025 16:55:27" 
+|{DSK}<Users>larry>il>MEDLEY>INTERNAL>loadups>LOADUP-LISP.;1|)
 
 
 (PRETTYCOMPRINT LOADUP-LISPCOMS)
@@ -19,7 +20,8 @@
 (DEFINEQ
 
 (LOADUP-LISP

-  (LAMBDA (DRIBBLEFILE)
                                     (* \; "Edited 16-Oct-2025 16:55 by rmk")


+  (LAMBDA (DRIBBLEFILE)
                                     (* \; "Edited  5-Nov-2025 09:01 by lmm")


+                                                            (* \; "Edited 16-Oct-2025 16:55 by rmk")


                                                             (* \; "Edited 18-Aug-2025 12:08 by rmk")


                                                             (* \; "Edited 15-Jun-2025 14:39 by rmk")


                                                             (* \; "Edited 24-May-2025 10:20 by rmk")


@@ -126,7 +128,10 @@
 
     (* |;;| " Added late, LOAD late to avoid any dependencies")

 
+    (* |;;| "prevent medley from pinning CPU")

+
     (LOADUP '(XCL-LOOP XCL-HASH-LOOP))
+    (LOADUP '(BACKGROUND-YIELD))
 
     (* |;;| " networking code -- should make it optional but too many cross dependencies")

 
@@ -144,5 +149,5 @@
 (GLOBALVARS MAKESYSFILENAME MEDLEY-INIT-VARS MEDLEYDIR SYSTEMINITVARS USERRECLST)
 )
 (DECLARE\: DONTCOPY
-  (FILEMAP (NIL (640 6898 (LOADUP-LISP 650 . 6896)))))
+  (FILEMAP (NIL (675 7127 (LOADUP-LISP 685 . 7125)))))
 STOP
diff --git a/internal/loadups/LOADUP-LISP.LCOM b/internal/loadups/LOADUP-LISP.LCOM
index 4662329ca85cfa8e28932042e3f6c814cc40c491..3a1d86082e364029f635560cfc3fcdf3f8043af9 100644
GIT binary patch
delta 548
zcmbu5F;Bu!6ope!G<DGkOb$1l+M!zBt29>A<iUHIN?Wikl8z{ik`yoyO^h`T{sFNu
z#?jr4#Xq34|HDZqN1G7i;>LXLIp00!VfB0UcK;eSWT$^FBL!`MvZ*Voj!OcF!co6_
z+KIw8^m`xxA74_hdbQmchJ&FIwFZL=qZ1i6qZSJc)A5<>5X*@At@hdJ(6DNRHtMov
zdiAv}6iaD>`iCi&^di!+DnNXg8-%~4IHeq&w0g(k=)JH=>U9q$uF>bp^*;fsCP=)v
zV_K}@GU79uQvNM7)$gETjQJ(d88v;m9DopYy8<LP-1^APZ%;E!^2If|m+{`r6L**4
zlaI_w9%(>bvs|_qs0hJi$MM4KGq;R2ut}A9f#(oAm2vVq7jeY|W$z2BqJdZ@mFlir
zYdBO6OlDCjdCU4a9&ibPSg|e7CazE1T~A8Z<`43G>Ts*H=}3T!>4k6FOiCW-!#N(1
KhQ^tNT=oYNvYd<n

delta 457
zcmZ{g!Artm7{-~H#x5aQ5O{dmr7f6kpPOqRT{ia_!%c0QiAQrIB%QJhg1+!iC>YVX
zQ<v!CKNp?ap}>Ql-{<)~&-;8=-YPGbx?C4KqlJhhq=H<>s)~`u0nd$Q)A@K3g)obO
z1Nzu^iRF;N)A=}FL`giHq@~>95+N!8%gO2*M8`<Ql9HLOljt8qfkqGW<PKACI)>Hj
zijM7ffsSJeT(jpmu+FGftC>9<E~1cb#LEgNuzXXs9n$cK5fBTw&7W*(ev~x_O_mhE
z#Igg?8~{zGw^>^H!JG<bqH%xoHwwa%juo8)b_<I^>2a>le65zbcP2f_@3XQ7mS>x$
zLsnk?lPMt$T%$$&f!{V<0t!m^3KK?3Y2h{Hi+&kubp(9Fb$r+G0>iuT1vY&yUL62$
ddM&Hp7N90)iokYBcKInrJAgFAuEO1N;TPGJd)WX0

diff --git a/lispusers/BACKGROUND-YIELD b/lispusers/BACKGROUND-YIELD
index 00d4ded4..aa634972 100644
--- a/lispusers/BACKGROUND-YIELD
+++ b/lispusers/BACKGROUND-YIELD
@@ -1,12 +1,12 @@
 (DEFINE-FILE-INFO PACKAGE "INTERLISP" READTABLE "INTERLISP" BASE 10)
 
-
(FILECREATED "28-Jul-2023 09:49:24" {DSK}<home>larry>il>medley>lispusers>BACKGROUND-YIELD.;2
 1770   
+
(FILECREATED " 9-Nov-2025 11:52:07" {DSK}<Users>larry>il>MEDLEY>LISPUSERS>BACKGROUND-YIELD.;2
 1882   
 
       :EDIT-BY "lmm"
 
       :CHANGES-TO (FNS BACKGROUND-YIELD)
 
-      :PREVIOUS-DATE "14-Nov-2021 22:05:58" {DSK}<home>larry>il>medley>lispusers>BACKGROUND-YIELD.;1
+      :PREVIOUS-DATE "28-Jul-2023 09:49:24" {DSK}<Users>larry>il>MEDLEY>LISPUSERS>BACKGROUND-YIELD.;1
 )
 
 
@@ -26,13 +26,14 @@
 (DEFINEQ
 
 (BACKGROUND-YIELD

-  [LAMBDA NIL
                                                (* ; "Edited 28-Jul-2023 09:11 by lmm")


+  [LAMBDA NIL
                                                (* ; "Edited  9-Nov-2025 11:50 by lmm")


+                                                             (* ; "Edited 28-Jul-2023 09:11 by lmm")


                                                            (* ; "Edited 20-Sep-2021 11:37 by larry")

     (LET ((\BACKGROUND T))
-         (DECLARE
 (SPECVARS \BACKGROUND))
+         (DECLARE
 (SPECVARS \BACKGROUND)
+                (GLOBALVARS BACKGROUND-YIELD))
          (IF
 (FIXP BACKGROUND-YIELD)
-             THEN
 (SUBRCALL YIELD BACKGROUND-YIELD)
-                  (SUBRCALL CAUSE-INTERRUPT])
+             THEN
 (SUBRCALL YIELD BACKGROUND-YIELD])
 
 (INIT-YIELD

   [LAMBDA (ONP)
                                        (* ; "Edited 19-Sep-2021 13:32 by larry")

@@ -51,5 +52,5 @@
 
 (RPAQQ BACKGROUND-YIELD
 833333)
 (DECLARE%: DONTCOPY
-  (FILEMAP (NIL (806 1655 (BACKGROUND-YIELD 816 . 1271) (INIT-YIELD 1273 . 1653)))))
+  (FILEMAP (NIL (808 1767 (BACKGROUND-YIELD 818 . 1383) (INIT-YIELD 1385 . 1765)))))
 STOP
diff --git a/lispusers/BACKGROUND-YIELD.LCOM b/lispusers/BACKGROUND-YIELD.LCOM
index 3e46012bd7930d3cffd5490382a1dd3abd3e84e5..c44c58fca41aea5dc4fafa0b867de795b1733bec 100644
GIT binary patch
delta 439
zcmdnbd7X1YxQK$Ku3vtcu91O}se+-Qm8p@Hf%(L2$@<XZ)S_a$oW!D{O1sP)J6~59
zAJ<4bAJ5=`&|ue~U^^#AXK(i)|4=^{-AGSY9~V7qBTWS*1rsFG%&ZKJtc*>R6q1Tk
zlk;;6GILT>6u6Qz67$kii&d=@(2Y>Y%u`Tu3<wBTP%x=Sn4_nsr=*aQSOV0H#e5TU
zB~303H%}i|=O9<d5LXwVA}n4~QmA$b_O7)d)>{Hd{!%csurQiDfzidr$U@hvGzSz|
z#tH_ORwkBKMnLaz5oPpbekN-*O$7#VMg|6kOhHD51R%{|tgwX(%&5J@D8S(7>BFUA
UXg+x%i?9$z@MvysV6tZd0RAL&e*gdg

delta 429
zcmcc4xu0`FxQLO3u2*S}u91O}v4Vl6m5HU5k;%kt$@+}^+*G@q#G;}~yUZNB+|-nu
z)JnUY%;JL5;?$yIJ10kHZ}%YoP(K&lNKaQE7d>kuO$8+*BNW37O|1+Jl@yYSQj_y@
z3o>(3QxuXj67$kii&d?-6wr-O$jnnvatrnGQ2-iK4|kNFo}Q9IN@596GdA;0l{C3D
z+&q0;or7E*LtI^eim>=dNuk;$*t^z-XkYQcy`^AiZf-Dn5~GW?p^2_vei<mJ41rFx
zGBC9=wNO&vBF5y&LQK|X3T_I97{1n2U=U(tWMIe?WMl|5R@lNBSbK@Fb`paCgP*4l
M7Z7ir!DP<_08q?%ssI20


From 40ac00d38c92af3d886039714af37cee01648602 Mon Sep 17 00:00:00 2001
From: Bill Stumbo <wstumbo@charter.net>
Date: Fri, 28 Nov 2025 00:34:42 -0500
Subject: [PATCH 08/20] Initial version of issue template for the new Primer

---
 .github/ISSUE_TEMPLATE/primer.yml | 67 +++++++++++++++++++++++++++++++
 1 file changed, 67 insertions(+)
 create mode 100644 .github/ISSUE_TEMPLATE/primer.yml

diff --git a/.github/ISSUE_TEMPLATE/primer.yml b/.github/ISSUE_TEMPLATE/primer.yml
new file mode 100644
index 00000000..d9daca57
--- /dev/null
+++ b/.github/ISSUE_TEMPLATE/primer.yml
@@ -0,0 +1,67 @@
+name: Report an issue with the **Medley Interlisp for the Newcomer** primer
+description: Use this template to report issues or make suggestions 
+title: Title of your issue
+assignees: ''
+labels: primer, documentation
+body:
+  - type: dropdown
+    id: problemType
+    attributes:
+      label: "What type of issue are you reporting?"
+      options:
+        - Suggested improvement
+        - Incorrect explanation / code sample
+        - Confusing explanation
+        - Outdated information
+        - Broken link
+        - Typo / Grammar
+      validations:
+        required: true
+  - type: dropdown
+    id: location
+    attributes:
+      label: "Section of the primer where the issue occurs"
+      options:
+        - Introduction
+        - Medley online and Medley Local
+        - Understanding and Navigating the Interface
+        - Understanding Lisp Syntax
+        - Atoms, Functions and Lists
+        - Variable Bindings and Scope
+        - Iterators and Conditionals
+        - The File Browser
+        - Debugging
+        - Editing functions with SEdit
+        - Build Your First Interactive Program
+        - Saving Your Work
+        - TEdit, The WYSIWYG Editor
+        - Drawing and Displaystreams
+        - Making a Graph with Grapher
+        - Additional Resources
+        - General Feedback (not specific to a section)
+      validations:
+        required: true  
+  - type: input
+    id: issueLocationDetails
+    attributes:
+      label: "Please provide more details about the location of the issue"
+      description: "For example, the specific page title, section heading, or code sample number."
+    validations:
+      required: false
+  - type: textarea
+    id: issueDescription
+    attributes:
+      label: "Description of the issue"
+      description: "Please provide a detailed description of the issue you encountered."
+    validations:
+      required: true
+  - type: textarea
+    id: suggestedFix
+    attributes:
+      label: "Suggested fix or improvement"
+      description: "If you have a suggestion for how to fix or improve the issue, please provide it here."
+    validations:
+      required: false
+  - type: markdown
+    attributes:
+      value: "## Thank you for helping us improve the **Medley Interlisp for the Newcomer** primer!"
\ No newline at end of file

From d30584cc2903b21e81fb76cadf75485dd69c48f8 Mon Sep 17 00:00:00 2001
From: Bill Stumbo <wstumbo@charter.net>
Date: Fri, 28 Nov 2025 00:44:13 -0500
Subject: [PATCH 09/20] Fix syntax errors

---
 .github/ISSUE_TEMPLATE/primer.yml | 13 +++++++------
 1 file changed, 7 insertions(+), 6 deletions(-)

diff --git a/.github/ISSUE_TEMPLATE/primer.yml b/.github/ISSUE_TEMPLATE/primer.yml
index d9daca57..8a15bfb8 100644
--- a/.github/ISSUE_TEMPLATE/primer.yml
+++ b/.github/ISSUE_TEMPLATE/primer.yml
@@ -1,8 +1,9 @@
 name: Report an issue with the **Medley Interlisp for the Newcomer** primer
 description: Use this template to report issues or make suggestions 
 title: Title of your issue
-assignees: ''
-labels: primer, documentation
+labels: 
+  - primer
+  - documentation
 body:
   - type: dropdown
     id: problemType
@@ -15,8 +16,8 @@ body:
         - Outdated information
         - Broken link
         - Typo / Grammar
-      validations:
-        required: true
+    validations:
+      required: true
   - type: dropdown
     id: location
     attributes:
@@ -39,8 +40,8 @@ body:
         - Making a Graph with Grapher
         - Additional Resources
         - General Feedback (not specific to a section)
-      validations:
-        required: true  
+    validations:
+      required: true  
   - type: input
     id: issueLocationDetails
     attributes:

From fbe98dd044aa7123d084c4d0efdfac8880e60662 Mon Sep 17 00:00:00 2001
From: Bill Stumbo <wstumbo@charter.net>
Date: Fri, 28 Nov 2025 00:46:21 -0500
Subject: [PATCH 10/20] Change additional information to textarea

---
 .github/ISSUE_TEMPLATE/primer.yml | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/.github/ISSUE_TEMPLATE/primer.yml b/.github/ISSUE_TEMPLATE/primer.yml
index 8a15bfb8..3f33bfe3 100644
--- a/.github/ISSUE_TEMPLATE/primer.yml
+++ b/.github/ISSUE_TEMPLATE/primer.yml
@@ -42,7 +42,7 @@ body:
         - General Feedback (not specific to a section)
     validations:
       required: true  
-  - type: input
+  - type: textarea
     id: issueLocationDetails
     attributes:
       label: "Please provide more details about the location of the issue"

From 5bca03d81e7897737c3ec5ff88edffb0e35493e9 Mon Sep 17 00:00:00 2001
From: Bill Stumbo <wstumbo@charter.net>
Date: Fri, 28 Nov 2025 08:28:12 -0500
Subject: [PATCH 11/20] Resolve review feedback.

---
 .github/ISSUE_TEMPLATE/primer.yml | 6 +++---
 1 file changed, 3 insertions(+), 3 deletions(-)

diff --git a/.github/ISSUE_TEMPLATE/primer.yml b/.github/ISSUE_TEMPLATE/primer.yml
index 3f33bfe3..016db1a8 100644
--- a/.github/ISSUE_TEMPLATE/primer.yml
+++ b/.github/ISSUE_TEMPLATE/primer.yml
@@ -1,5 +1,5 @@
 name: Report an issue with the **Medley Interlisp for the Newcomer** primer
-description: Use this template to report issues or make suggestions 
+description: Use this template to report issues or make suggestions.
 title: Title of your issue
 labels: 
   - primer
@@ -41,12 +41,12 @@ body:
         - Additional Resources
         - General Feedback (not specific to a section)
     validations:
-      required: true  
+      required: true
   - type: textarea
     id: issueLocationDetails
     attributes:
       label: "Please provide more details about the location of the issue"
-      description: "For example, the specific page title, section heading, or code sample number."
+      description: "For example, the specific page title, section heading, or url."
     validations:
       required: false
   - type: textarea

From 097f346c3bde88d0e6fca05f5f628a39d8d04a9e Mon Sep 17 00:00:00 2001
From: rmkaplan <69548581+rmkaplan@users.noreply.github.com>
Date: Sun, 30 Nov 2025 09:14:22 -0800
Subject: [PATCH 12/20] Rmk143  INITVARS command for MEDLEY-INIT-VARS,
 FLUSHFONTCACHE (#2383)

* loadup scripts:  set MEDLEY-INIT-VARS to NOBIND before loading MEDLEYDIR
so that INITVARS in MEDLEYDIR replaces any previous settings in the loadup-sysout

* FONT:  add cache for FONTSAVAILABLE, add FLUSHFONTCACHE.  See FONTCODECHANGES.tedit

* Make FONTEXISTS and FONTSAVAILABLE consistent
---
 docs/internal/FONTCODECHANGES.tedit     | Bin 33911 -> 34891 bytes
 library/UNIXUTILS                       |  20 +-
 library/UNIXUTILS.DFASL                 | Bin 7320 -> 7342 bytes
 scripts/loadups/loadup-init.sh          |   1 +
 scripts/loadups/loadup-lisp-from-mid.sh |   1 +
 sources/FONT                            | 503 ++++++++++--------------
 sources/FONT.LCOM                       | Bin 69328 -> 69409 bytes
 sources/MEDLEYDIR                       | 131 +++---
 sources/MEDLEYDIR.LCOM                  | Bin 5856 -> 7295 bytes
 9 files changed, 315 insertions(+), 341 deletions(-)

diff --git a/docs/internal/FONTCODECHANGES.tedit b/docs/internal/FONTCODECHANGES.tedit
index c92e4098ff42ceaae68b84fe15de2a7222f8738a..8bcbf2644c1be7d9747042d96110a509aa158835 100644
GIT binary patch
delta 1042
zcmZ8f&ubGw6i(7ssE4Zkp|n(dM3B~oy|keaPiwNVD`^_L>yIiFrn{47%4Rpt&bEz;
ziO@rD7WQut1TV^Z@(&P1@ZeqW>PdR))i;x-p#~=VnEBp&-}k+Da+vvkl=-+hb_w*#
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ahzkb`;}1%@Z4`Ene|<}(b|AC(;>$ls>NB7K

delta 187
zcmX>-f$4h((}p;{$?dZIn``*yFl{yxT*1QZ;u^g9uBf*B<X<tilRZpjcw*fA{X&90
z{ha-STqpCGnMgPmE2QNYDS(9?!yG+*9G!ezbreb_JDM3Y>nSK~K4!5|oH2NFdB8_C
zMvch_+r=i=m!D%|Y}%Yyv6OXkd^zXj6)jT2#tcBf2*hk41~U*>P4+LB-2AmJkD1YZ
gb4pVO>ty~8Eg?M@#}HSmtUX=|3=HXtO!8H`0Cadc)Bpeg

diff --git a/library/UNIXUTILS b/library/UNIXUTILS
index 59253a49..9f9491d9 100644
--- a/library/UNIXUTILS
+++ b/library/UNIXUTILS
@@ -1,12 +1,12 @@
 (DEFINE-FILE-INFO PACKAGE "INTERLISP" READTABLE "INTERLISP" BASE 10)
 
-
(FILECREATED " 4-Nov-2025 10:11:10" {WMEDLEY}<library>UNIXUTILS.;34
 18037  
+
(FILECREATED "26-Nov-2025 14:21:13" {WMEDLEY}<library>UNIXUTILS.;35
 18084  
 
       :EDIT-BY rmk
 
-      :CHANGES-TO (FNS SLASHIT)
+      :CHANGES-TO (VARS UNIXUTILSCOMS)
 
-      :PREVIOUS-DATE "22-Oct-2025 13:05:51" {WMEDLEY}<library>UNIXUTILS.;33)
+      :PREVIOUS-DATE " 4-Nov-2025 10:11:10" {WMEDLEY}<library>UNIXUTILS.;34)
 
 
 (PRETTYCOMPRINT UNIXUTILSCOMS)
@@ -19,8 +19,8 @@
         (INITVARS (ShellBrowser)
                (ShellOpener))
         (FUNCTIONS ShellCommand ShellWhich)
-        (ADDVARS (MEDLEY-INIT-VARS (ShellBrowser)
-                        (ShellOpener)))
+        (ADDVARS (MEDLEY-INIT-VARS (ShellBrowser NIL RESET)
+                        (ShellOpener NIL RESET)))
         (FNS ShellBrowser ShellBrowse ShellOpener ShellOpen PROCESS-COMMAND SLASHIT UNIX-FILE-NAME)
         (PROPS (UNIXUTILS FILETYPE))))
 (DECLARE%: EVAL@COMPILE DONTCOPY 
@@ -57,8 +57,8 @@
              (T (SETFILEPTR S 0)
                 (RSTRING S])
 
-(ADDTOVAR MEDLEY-INIT-VARS
 (ShellBrowser)
-                           (ShellOpener))
+(ADDTOVAR MEDLEY-INIT-VARS
 (ShellBrowser NIL RESET)
+                           (ShellOpener NIL RESET))
 (DEFINEQ
 
 (ShellBrowser

@@ -327,7 +327,7 @@
 
 (PUTPROPS UNIXUTILS
 FILETYPE
 CL:COMPILE-FILE)
 (DECLARE%: DONTCOPY
-  (FILEMAP (NIL (1110 1483 (ShellCommand 1110 . 1483)) (1485 1882 (ShellWhich 1485 . 1882)) (1972 17959 
-(ShellBrowser 1982 . 3754) (ShellBrowse 3756 . 4441) (ShellOpener 4443 . 6131) (ShellOpen 6133 . 11612
-) (PROCESS-COMMAND 11614 . 12227) (SLASHIT 12229 . 14684) (UNIX-FILE-NAME 14686 . 17957)))))
+  (FILEMAP (NIL (1137 1510 (ShellCommand 1137 . 1510)) (1512 1909 (ShellWhich 1512 . 1909)) (2019 18006 
+(ShellBrowser 2029 . 3801) (ShellBrowse 3803 . 4488) (ShellOpener 4490 . 6178) (ShellOpen 6180 . 11659
+) (PROCESS-COMMAND 11661 . 12274) (SLASHIT 12276 . 14731) (UNIX-FILE-NAME 14733 . 18004)))))
 STOP
diff --git a/library/UNIXUTILS.DFASL b/library/UNIXUTILS.DFASL
index 514dfbb9e910309c2eab26709c74b23000c0916f..96e1669b9f37fa0ae01eba23b9c1f68c725ae4e6 100644
GIT binary patch
delta 1832
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vT+W-}^AXlWxGqv^ecUn&g~Pi}es6WczhQOt!gnCxQn5njT~7Jv{rmp_2}=^F

delta 1841
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zejPc*Rf8=SP4p<V=#W%JO6ZcBl(l{AKORvS5+c7fdUjVvnIo=b6Xj6!KB+H}WuCka
zG>1e+_K8tMI$R4QUbx2aTWEpyl)_Ct7^`HeIat1e1fK0GIp4fRb<rLheyp!1p2i$w
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z<ds|_ue*mdKCeG;VC5hLi%ISIQIM7aB{e+A@f$M3)pW84WLZkd4CsDd#kLMEI@rF5
ziacai{xjLyGBMmF@_w<?oCw@Nvsm0P5nW=KC-`m~7dP#|Q!&yj>u`n2iGH!3zEN$Q
zESABm(W{tr9pp~SldU=EbnQCF@GLm8G8}UAje%F8)f0gCK=sJ(XCb^&Qu{M-vH97a
Mpn0})&pdeWAI#qvZ2$lO

diff --git a/scripts/loadups/loadup-init.sh b/scripts/loadups/loadup-init.sh
index 4a42bd00..c1d5b75e 100755
--- a/scripts/loadups/loadup-init.sh
+++ b/scripts/loadups/loadup-init.sh
@@ -11,6 +11,7 @@ main() {
 	(* "make init files; this file is loaded as a 'greet' file by scripts/loadup-init.sh")
 
 	(SETQ MEDLEYDIR NIL)
+	(SETATOMVAL (QUOTE MEDLEY-INIT-VARS) (QUOTE NOBIND))
 	(LOAD (CONCAT (UNIX-GETENV "MEDLEYDIR") "/sources/MEDLEYDIR.LCOM"))
 	(MEDLEY-INIT-VARS)
 	(PUTASSOC (QUOTE MEDLEY) (LIST (UNIX-GETENV (QUOTE LOADUP_COMMIT_ID))) SYSOUTCOMMITS)
diff --git a/scripts/loadups/loadup-lisp-from-mid.sh b/scripts/loadups/loadup-lisp-from-mid.sh
index df4999b6..42ddb959 100755
--- a/scripts/loadups/loadup-lisp-from-mid.sh
+++ b/scripts/loadups/loadup-lisp-from-mid.sh
@@ -12,6 +12,7 @@ main() {
 
 	(PROGN
           (SETQ LOADUP-SUCCESS NIL)
+	  (SETATOMVAL (QUOTE MEDLEY-INIT-VARS) (QUOTE NOBIND))
 	  (LOAD (CONCAT (QUOTE {DSK}) (UNIX-GETENV (QUOTE MEDLEYDIR)) (QUOTE /sources/MEDLEYDIR.LCOM)))
 	  (MEDLEY-INIT-VARS)
 	  (LOAD (CONCAT (QUOTE {DSK}) (UNIX-GETENV (QUOTE LOADUP_SOURCEDIR)) (QUOTE /LOADUP-LISP.LCOM)))
diff --git a/sources/FONT b/sources/FONT
index 6e40fa42..fb086c1f 100644
--- a/sources/FONT
+++ b/sources/FONT
@@ -1,13 +1,12 @@
 (DEFINE-FILE-INFO PACKAGE "INTERLISP" READTABLE "INTERLISP" BASE 10)
 
-
(FILECREATED "17-Oct-2025 19:43:25" {WMEDLEY}<sources>FONT.;621
 286216 
+
(FILECREATED "29-Nov-2025 16:32:59" {WMEDLEY}<sources>FONT.;638
 280293 
 
       :EDIT-BY rmk
 
       :CHANGES-TO (VARS FONTCOMS)
-                  (FNS MONOSPACEFONTP)
 
-      :PREVIOUS-DATE "13-Oct-2025 21:33:14" {WMEDLEY}<sources>FONT.;620)
+      :PREVIOUS-DATE "28-Nov-2025 14:28:16" {WMEDLEY}<sources>FONT.;637)
 
 
 (PRETTYCOMPRINT FONTCOMS)
@@ -16,21 +15,18 @@
        [
         (* ;; "font functions ")

 
-        (DECLARE%: EVAL@COMPILE DONTCOPY                     (* ; 
-
                                  "Can't be loaded/not needed during INIT, load at end of LOAD-LISP.")

-               (FILES (SYSLOAD)
-                      MULTI-ALIST))
         (FNS CHARWIDTH CHARWIDTHY STRINGWIDTH \CHARWIDTH.DISPLAY \STRINGWIDTH.DISPLAY 
              \STRINGWIDTH.GENERIC)
         (COMS (FNS DEFAULTFONT FONTCLASS FONTCLASSUNPARSE FONTCLASSCOMPONENT SETFONTCLASSCOMPONENT 
                    GETFONTCLASSCOMPONENT)
               (MACROS \GETFONTCLASSCOMPONENT \SETFONTCLASSCOMPONENT))
         (VARS NSFONTFAMILIES ALTOFONTFAMILIES)
+        (INITVARS MCCSFONTFAMILIES)
         (COMS 
               (* ;; "Creation: ")

 
-              (FNS FONTCREATE FONTCREATE1 FONTCREATE.SLUGFD \FONT.CHECKARGS \FONT.CHECKARGS1 
-                   \FONTCREATE1.NOFN FONTFILEP \READCHARSET)
+              (FNS FONTCREATE FONTCREATE1 FONTCREATE.SLUGFD \FONT.CHECKARGS1 \FONTCREATE1.NOFN 
+                   FONTFILEP \READCHARSET)
               (FNS \FONT.CHECKARGS \CHARSET.CHECK)
               (FNS COERCEFONTSPEC)
               (DECLARE%: EVAL@COMPILE DONTCOPY (MACROS COERCEFONTSPEC.MATCH COERCEFONTSPEC.TARGET))
@@ -63,15 +59,20 @@
         (FNS FONTCOPY FONTP FONTUNPARSE SETFONTDESCRIPTOR \STREAMCHARWIDTH \COERCECHARSET 
              \BUILDSLUGCSINFO \FONTSYMBOL \DEVICESYMBOL \FONTFACE \FONTFACE.COLOR SETFONTCHARENCODING
              )
-        (FNS FONTSAVAILABLE FONTEXISTS? \SEARCHFONTFILES FLUSHFONTSINCORE FINDFONTFILES SORTFONTSPECS
-             )
+        (FNS FONTSAVAILABLE FONTEXISTS? \SEARCHFONTFILES FLUSHFONTCACHE FLUSHFONTSINCORE 
+             FINDFONTFILES SORTFONTSPECS)
         (FNS MATCHFONTFACE MAKEFONTFACE FONTFACETOATOM)
-        (INITVARS \FONTSINCORE \FONTEXISTS?-CACHE \DEFAULTDEVICEFONTS)
+        (INITVARS \FONTSINCORE \FONTEXISTS?-CACHE \FONTSAVAILABLEFILECACHE \DEFAULTDEVICEFONTS)
+        
+        (* ;; "The INITVARS value of MEDLEY-INIT-VARS in MEDLEY dalso includes these entries.  That's because FONT is in the INIT, so these entries would be lost when MEDLEY-INIT-VARS is reinitialized when the Lisp loadup starts")

+
+        (ADDVARS (MEDLEY-INIT-VARS (\FONTEXISTS?-CACHE NIL RESET)
+                        (\FONTSAVAILABLEFILECACHE NIL RESET)))
         [COMS (GLOBALVARS \DEFAULTDEVICEFONTS \UNITWIDTHSVECTOR)
               (INITVARS \UNITWIDTHSVECTOR)
               (FNS \UNITWIDTHSVECTOR)
               (DECLARE%: DONTEVAL@LOAD DOCOPY (P (\UNITWIDTHSVECTOR]
-        (DECLARE%: DONTCOPY (EXPORT (RECORDS FONTCLASS FONTDESCRIPTOR FONTFACE CHARSETINFO FONTSPEC)
+        (DECLARE%: DONTCOPY [EXPORT (RECORDS FONTCLASS FONTDESCRIPTOR FONTFACE CHARSETINFO FONTSPEC)
                                    (MACROS FONTASCENT FONTDESCENT FONTHEIGHT \FGETOFFSET \FSETOFFSET
                                           \FGETWIDTH \FSETWIDTH \FGETCHARWIDTH \FSETCHARWIDTH 
                                           \FGETIMAGEWIDTH \FSETIMAGEWIDTH)
@@ -79,8 +80,7 @@
                                           \CREATECSINFOELEMENT \CREATEFONTCHARSETVECTOR CHARSETPROP)
                                    (PROP ARGNAMES CHARSETPROP)
                                    (CONSTANTS (SLUGCHARINDEX (ADD1 \MAXTHINCHAR))
-                                          (SLUGCHARSET (ADD1 \MAXCHARSET)))
-                                   (MACROS LEGACYFONTS))
+                                          (SLUGCHARSET (ADD1 \MAXCHARSET]
                (MACROS INDIRECTCHARSETP))
         (FNS FONTDESCRIPTOR.DEFPRINT FONTCLASS.DEFPRINT)
         (INITRECORDS FONTCLASS FONTDESCRIPTOR CHARSETINFO)
@@ -210,11 +210,6 @@
 
 (* ;; "font functions ")

 
-(DECLARE%: EVAL@COMPILE DONTCOPY 
-
-(FILESLOAD (SYSLOAD)
-       MULTI-ALIST)
-)
 (DEFINEQ
 
 (CHARWIDTH

@@ -505,6 +500,8 @@
 (RPAQQ ALTOFONTFAMILIES
 (TIMESROMAN TIMESROMAND HELVETICA HELVETICAD CLARITY BRAVOX TONTO CREAM 
                                OLDENGLISH))
 
+(RPAQ? MCCSFONTFAMILIES
 NIL)
+
 
 
 (* ;; "Creation: ")

@@ -620,111 +617,6 @@
             else
 (for
 CS from
 0 to
 (ADD1 \MAXCHARSET) do
 (\SETCHARSETINFO FONTDESC CS SLUGCSINFO)))
           FONTDESC])
 
-(\FONT.CHECKARGS

-  [LAMBDA (FAMILY SIZE FACE ROTATION DEVICE)
                 (* ; "Edited 28-Aug-2025 14:46 by rmk")


-                                                             (* ; "Edited 23-Aug-2025 11:54 by rmk")


-                                                             (* ; "Edited 17-Aug-2025 19:15 by rmk")


-                                                             (* ; "Edited 12-Aug-2025 22:36 by rmk")


-                                                             (* ; "Edited 10-Aug-2025 12:06 by rmk")


-                                                             (* ; "Edited  8-Aug-2025 09:57 by rmk")


-                                                             (* ; "Edited 27-Jul-2025 13:30 by rmk")


-                                                             (* ; "Edited 22-Jul-2025 23:07 by rmk")


-                                                             (* ; "Edited 21-Jul-2025 09:22 by rmk")


-                                                             (* ; "Edited 14-Jul-2025 20:09 by rmk")


-                                                             (* ; "Edited 11-Jul-2025 10:15 by rmk")


-                                                             (* ; "Edited  5-Jul-2025 13:37 by rmk")


-                                                             (* ; "Edited  2-Jul-2025 16:50 by rmk")


-                                                             (* ; "Edited 27-Jun-2025 10:42 by rmk")


-                                                             (* ; "Edited 15-Jun-2025 00:25 by rmk")

-
-    (* ;; "DON'T BREAK, TRACE, OR UNSAVE THIS UNLESS ALL SYSTEM FONTS HAVE ALREADY BEEN INSTANTIATED")

-
-    (* ;; "Decodes and checks the various ways of specifying the arguments to font lookup functions.")

-
-    (* ;; "If FAMILY can be coerced to a font descriptor and none of its properties are overwritten by the other aguments, then that font descriptor is returned.  Otherwise the value is the coerced fontspec (family size face rotation device).")

-
-    (LET (FONTX)
-         (CL:WHEN (AND (EQ 'CLASS (CAR (LISTP FAMILY)))
-                       (LITATOM (CADR FAMILY)))
-
-             (* ;; "This used to be at the entry to FONTCREATE, and it returned the FONTCLASS.  That seemed wrong--FONTCREATE should always return a fontdescriptor.  So here we build a throwaway fontclass, coerce it to its device font, and fall through.")

-
-             (SETQ FAMILY (\FONT.CHECKARGS1
 (FONTCLASS
 (CADR FAMILY)
-                                                   (CDDR FAMILY))
-                                 DEVICE)))
-         (CL:UNLESS (AND FAMILY (LITATOM FAMILY)
-                         (NEQ FAMILY T))
-
-             (* ;; "FAMILY T or NIL produces an error below")

-
-             [if
 (LISTP FAMILY)
-                 then
 
-                      (* ;; "Presumably a FONTSPEC.  The variables here override the FONTX properties, as with the fontdescriptor below ")

-
-                      (SETQ FONTX (CL:IF (EQ 'FONT (CAR FAMILY))
-                                      (CDR FAMILY)
-                                      FAMILY))
-                      (SETQ FAMILY (fetch
 (FONTSPEC FSFAMILY) of
 FONTX))
-                      (SETQ SIZE (OR SIZE (fetch
 (FONTSPEC FSSIZE) of
 FONTX)))
-                      (SETQ FACE (OR FACE (fetch
 (FONTSPEC FSFACE) of
 FONTX)))
-                      (SETQ ROTATION (OR ROTATION (fetch
 (FONTSPEC FSROTATION) of
 FONTX)))
-                      (SETQ DEVICE (OR DEVICE (fetch
 (FONTSPEC FSDEVICE) of
 FONTX)))
-                      (SETQ FONTX NIL)
-               elseif
 (SETQ FONTX (CL:IF (type?
 FONTDESCRIPTOR FAMILY)
-                                      FAMILY
-                                      (\FONT.CHECKARGS1
 FAMILY DEVICE T)))
-                 then
 
-                      (* ;; 
-
                    "FAMILY was a spec for a font descriptor. Are any of its properties overwritten?")

-
-                      (SETQ FAMILY (fetch
 (FONTDESCRIPTOR FONTFAMILY) of
 FONTX))
-                      (CL:UNLESS SIZE
-                          (SETQ SIZE (fetch
 (FONTDESCRIPTOR FONTSIZE) of
 FONTX)))
-                      (CL:UNLESS FACE
-                          (SETQ FACE (fetch
 (FONTDESCRIPTOR FONTFACE) of
 FONTX)))
-                      (CL:UNLESS ROTATION
-                          (SETQ ROTATION (fetch
 (FONTDESCRIPTOR ROTATION) of
 FONTX)))
-                      (CL:UNLESS DEVICE
-                          (SETQ DEVICE (fetch
 (FONTDESCRIPTOR FONTDEVICE) of
 FONTX)))])
-
-         (* ;; "We have decoded the arguments, fill in defaults and validate")

-
-         (SETQ DEVICE (if
 (NULL DEVICE)
-                          then
 'DISPLAY
-                        elseif
 (OR (AND (LITATOM DEVICE)
-                                        (NEQ DEVICE T))
-                                   (STRINGP DEVICE))
-                          then
 (\DEVICESYMBOL
 DEVICE)
-                        elseif
 [AND (SETQ DEVICE (\GETSTREAM DEVICE 'OUTPUT T))
-                                    (CAR (MKLIST (IMAGESTREAMTYPE DEVICE]
-                        else
 (\ILLEGAL.ARG DEVICE)))
-         (CL:UNLESS (AND FAMILY (LITATOM FAMILY)
-                         (NEQ FAMILY T))
-                (ERROR "Illegal font family" FAMILY))
-         (SETQ FAMILY (U-CASE FAMILY))
-         (CL:UNLESS (OR (AND (FIXP SIZE)
-                             (IGREATERP SIZE 0))
-                        (EQ SIZE '*))
-                (ERROR "Illegal font size" SIZE))
-         (CL:UNLESS (EQ FACE '*)
-             (SETQ FACE (\FONTFACE
 FACE NIL DEVICE)))
-         (if
 (NULL ROTATION)
-             then
 (SETQ ROTATION 0)
-           elseif
 (AND (FIXP ROTATION)
-                       (IGEQ ROTATION 0))
-           elseif
 (EQ ROTATION '*)
-           else
 (\ILLEGAL.ARG ROTATION))
-         (CL:WHEN FONTX
-
-             (* ;; "Return FONTX only if no fields were overwritten")

-
-             (CL:UNLESS (AND (EQ SIZE (fetch
 (FONTDESCRIPTOR FONTSIZE) of
 FONTX))
-                             (EQUAL FACE (fetch
 (FONTDESCRIPTOR FONTFACE) of
 FONTX))
-                             (EQ ROTATION (fetch
 (FONTDESCRIPTOR ROTATION) of
 FONTX))
-                             (EQ DEVICE (fetch
 (FONTDESCRIPTOR FONTDEVICE) of
 FONTX)))
-                    (SETQ FONTX NIL)))
-         (OR FONTX (MAKEFONTSPEC
 FAMILY SIZE FACE ROTATION DEVICE])
-
 (\FONT.CHECKARGS1

   [LAMBDA (SPEC STREAM NOERRORFLG)
                           (* ; "Edited 22-Jul-2025 18:47 by rmk")


                                                              (* ; "Edited 14-Jul-2025 19:40 by rmk")


@@ -821,7 +713,8 @@
                        (CLOSEF? STRM))))])
 
 (\READCHARSET

-  [LAMBDA (FONTSPEC CHARSET FONT)
                            (* ; "Edited  2-Sep-2025 23:57 by rmk")


+  [LAMBDA (FONTSPEC CHARSET FONT)
                            (* ; "Edited 11-Nov-2025 14:30 by rmk")


+                                                             (* ; "Edited  2-Sep-2025 23:57 by rmk")


                                                              (* ; "Edited 28-Aug-2025 23:17 by rmk")


                                                              (* ; "Edited 25-Aug-2025 12:03 by rmk")


                                                              (* ; "Edited 16-Aug-2025 18:00 by rmk")


@@ -855,17 +748,15 @@
                                     (* ;; "The file didn't know its own encoding")

 
                                     (SETQ FAMILY (fetch
 (FONTSPEC FSFAMILY) of
 FONTSPEC))
-                                    (CHARSETPROP CSINFO 'CSCHARENCODING (if
 (NEQ CHARSET 0)
-                                                                            then
 'MCCS
-                                                                          elseif
 (MEMB FAMILY 
-                                                                                       NSFONTFAMILIES
-                                                                                       )
-                                                                            then
 'XCCS$
-                                                                          elseif
 (MEMB FAMILY 
-                                                                                     ALTOFONTFAMILIES
-                                                                                       )
-                                                                            then
 'ALTOTEXT
-                                                                          else
 FAMILY)))
+                                    (CHARSETPROP CSINFO 'CSCHARENCODING
+                                           (if
 (OR (NEQ CHARSET 0)
+                                                   (MEMB FAMILY MCCSFONTFAMILIES))
+                                               then
 'MCCS
+                                             elseif
 (MEMB FAMILY NSFONTFAMILIES)
+                                               then
 'XCCS$
+                                             elseif
 (MEMB FAMILY ALTOFONTFAMILIES)
+                                               then
 'ALTOTEXT
+                                             else
 FAMILY)))
 
                                 (* ;; "Remember the file that this basic charset information came from, before any character coercions, for informational purposes.  Path and version won't be valid if sysout moves, or if PSEUDOFILENAME's aren't aligned.  Don't want files to be new atoms, for loadup.")

 
@@ -883,7 +774,8 @@
 (DEFINEQ
 
 (\FONT.CHECKARGS

-  [LAMBDA (FAMILY SIZE FACE ROTATION DEVICE)
                 (* ; "Edited 28-Aug-2025 14:46 by rmk")


+  [LAMBDA (FAMILY SIZE FACE ROTATION DEVICE ALWAYSFONTSPEC)
  (* ; "Edited 22-Nov-2025 11:31 by rmk")


+                                                             (* ; "Edited 28-Aug-2025 14:46 by rmk")


                                                              (* ; "Edited 23-Aug-2025 11:54 by rmk")


                                                              (* ; "Edited 17-Aug-2025 19:15 by rmk")


                                                              (* ; "Edited 12-Aug-2025 22:36 by rmk")


@@ -980,7 +872,8 @@
 
              (* ;; "Return FONTX only if no fields were overwritten")

 
-             (CL:UNLESS (AND (EQ SIZE (fetch
 (FONTDESCRIPTOR FONTSIZE) of
 FONTX))
+             (CL:UNLESS (AND (NOT ALWAYSFONTSPEC)
+                             (EQ SIZE (fetch
 (FONTDESCRIPTOR FONTSIZE) of
 FONTX))
                              (EQUAL FACE (fetch
 (FONTDESCRIPTOR FONTFACE) of
 FONTX))
                              (EQ ROTATION (fetch
 (FONTDESCRIPTOR ROTATION) of
 FONTX))
                              (EQ DEVICE (fetch
 (FONTDESCRIPTOR FONTDEVICE) of
 FONTX)))
@@ -998,7 +891,8 @@
 (DEFINEQ
 
 (COERCEFONTSPEC

-  [LAMBDA (FONTSPEC COERCIONS)
                               (* ; "Edited  5-Oct-2025 09:41 by rmk")


+  [LAMBDA (FONTSPEC COERCIONS)
                               (* ; "Edited  9-Nov-2025 17:54 by rmk")


+                                                             (* ; "Edited  5-Oct-2025 09:41 by rmk")


                                                              (* ; "Edited 28-Aug-2025 14:41 by rmk")


                                                              (* ; "Edited 25-Aug-2025 10:22 by rmk")


                                                              (* ; "Edited 17-Aug-2025 19:15 by rmk")


@@ -1012,11 +906,14 @@
 
     (* ;; "Doesn't make sense to coerce the device, DEVICE and also CHARSET are just carried along.")

 
+    (CL:WHEN (LITATOM COERCIONS)
+        [SETQ COERCIONS (FONTDEVICEPROP
 FONTSPEC (OR COERCIONS 'FONTCOERCIONS])
+
     (* ;; "A NIL match component matches everything, and a NIL target component denotes the corresponding argument.")

 
     (for
 C MATCH TARGET MFAMILY MSIZE MFACE MROTATION TFAMILY TSIZE TFACE TROTATION COERCED FAMILY 
-         SIZE FACE ROTATION DEVICE in
 (OR COERCIONS (FONTDEVICEPROP
 FONTSPEC 'FONTCOERCIONS))
-       first
 (SPREADFONTSPEC FONTSPEC) eachtime
 (SETQ MATCH (MKLIST (CAR C)))
+         SIZE FACE ROTATION DEVICE in
 COERCIONS first
 (SPREADFONTSPEC FONTSPEC)
+       eachtime
 (SETQ MATCH (MKLIST (CAR C)))
        when
 [AND (COERCEFONTSPEC.MATCH (pop
 MATCH)
                         FAMILY)
                  (COERCEFONTSPEC.MATCH (pop
 MATCH)
@@ -1092,17 +989,22 @@
 (DEFINEQ
 
 (MAKEFONTSPEC

-  [LAMBDA (FAMILY SIZE FACE ROTATION DEVICE)
                 (* ; "Edited 28-Aug-2025 14:32 by rmk")


+  [LAMBDA (FAMILY SIZE FACE ROTATION DEVICE BASE)
            (* ; "Edited  7-Nov-2025 07:52 by rmk")


+                                                             (* ; "Edited 28-Aug-2025 14:32 by rmk")


                                                              (* ; "Edited 17-Aug-2025 20:44 by rmk")

 
     (* ;; "This is a function, not a macro, so that it can be used in the loadup sequence to create the FONTSPEC for the \GUARANTEEDDISPLAYFONT.  That font is created by \CREATEFONT and therefore is not dependent on \FONT.CHECKARGS or on the multi-alist multi-key indexing functions.  The strategy might change if MULTI-ALIST is moved earlier in the loadup sequence.")

 
+    (* ;; "BASE (fontspec or font) provides defaults for NIL arguments, essentialy models a (create using BASE...)")

+
+    (CL:WHEN (FONTP
 BASE)
+        (SETQ BASE (FONTPROP
 BASE 'SPEC)))
     (create
 FONTSPEC
-           FSFAMILY _ FAMILY
-           FSSIZE _ SIZE
-           FSFACE _ FACE
-           FSROTATION _ ROTATION
-           FSDEVICE _ DEVICE])
+           FSFAMILY _ (OR FAMILY (fetch
 (FONTSPEC FSFAMILY) of
 BASE))
+           FSSIZE _ (OR SIZE (fetch
 (FONTSPEC FSSIZE) of
 BASE))
+           FSFACE _ (OR FACE (fetch
 (FONTSPEC FSFACE) of
 BASE))
+           FSROTATION _ (OR ROTATION (fetch
 (FONTSPEC FSROTATION) of
 BASE))
+           FSDEVICE _ (OR DEVICE (fetch
 (FONTSPEC FSDEVICE) of
 BASE])
 )
 (DEFINEQ
 
@@ -2092,7 +1994,8 @@
                 'EXTENSION EXTENSION])
 
 (FONTSPECFROMFILENAME

-  [LAMBDA (FONTFILE DEVICE)
                                  (* ; "Edited 30-Aug-2025 10:05 by rmk")


+  [LAMBDA (FONTFILE DEVICE)
                                  (* ; "Edited 23-Nov-2025 21:42 by rmk")


+                                                             (* ; "Edited 30-Aug-2025 10:05 by rmk")


                                                              (* ; "Edited 28-Aug-2025 14:28 by rmk")


                                                              (* ; "Edited 25-Aug-2025 10:16 by rmk")


                                                              (* ; "Edited 23-Aug-2025 10:42 by rmk")


@@ -2128,17 +2031,23 @@
          (SETQ NAME (U-CASE NAME))
          (SETQ FACE (SUBSTRING NAME SIZEEND))                (* ; 
 
                                                     "don't need name, but checks for lowercase face")

-         [SETQ FACE (LIST (SELCHARQ (NTHCHARCODE FACE 1)
+         (SETQ FACE (LIST (SELCHARQ (NTHCHARCODE FACE 1)
                                (B 'BOLD)
                                (L 'LIGHT)
-                               'MEDIUM)
+                               (M 'MEDIUM)
+                               NIL)
                           (SELCHARQ (NTHCHARCODE FACE 2)
                                (I 'ITALIC)
-                               'REGULAR)
+                               (R 'REGULAR)
+                               NIL)
                           (SELCHARQ (NTHCHARCODE FACE 3)
                                (C 'COMPRESSED)
                                (E 'EXPANDED)
-                               'REGULAR]
+                               (R 'REGULAR)
+                               NIL)))
+         (CL:WHEN (MEMB NIL FACE)                            (* ; 
+
                                                             "Named didn't have a recognizable face")

+             (SETQ FACE NIL))
          (CL:WHEN (SETQ CHARSET (STRPOS "-c" NAME NIL NIL NIL T UPPERCASEARRAY))
              [SETQ CHARSET (FIXP (MKATOM (CONCAT (SUBSTRING NAME CHARSET)
                                                 "Q"])
@@ -2795,7 +2704,9 @@
 (DEFINEQ
 
 (FONTSAVAILABLE

-  [LAMBDA (FAMILY SIZE FACE ROTATION DEVICE CHECKFILESTOO?)
  (* ; "Edited 25-Sep-2025 18:39 by rmk")


+  [LAMBDA (FAMILY SIZE FACE ROTATION DEVICE CHECKFILESTOO?)
  (* ; "Edited 22-Nov-2025 11:32 by rmk")


+                                                             (* ; "Edited  6-Nov-2025 13:50 by rmk")


+                                                             (* ; "Edited 25-Sep-2025 18:39 by rmk")


                                                              (* ; "Edited 30-Aug-2025 13:55 by rmk")


                                                              (* ; "Edited 28-Aug-2025 14:43 by rmk")


                                                              (* ; "Edited 23-Aug-2025 10:51 by rmk")


@@ -2810,48 +2721,63 @@
 
 (* ;;; "returns a list of the fonts fitting a description that are available.  FAMILY SIZE FACE or ROTATION can be * which means get them all.  if CHECKFILESTOO? is NIL, only fonts in core will be considered. If ONLY, fonts in memory will be ignored. ")

 
-    (DECLARE
 (GLOBALVARS \FONTSINCORE))
-    (LET ((FONTSPEC (\FONT.CHECKARGS
 FAMILY SIZE FACE ROTATION DEVICE)))
-         (if
 (EQ '* (fetch
 (FONTSPEC FSDEVICE) of
 FONTSPEC))
-             then
 
-                  (* ;; 
+    (DECLARE
 (GLOBALVARS \FONTSINCORE \FONTSAVAILABLEFILECACHE))
+    (LET
+     ((FONTSPEC (\FONT.CHECKARGS
 FAMILY SIZE FACE ROTATION DEVICE T))
+      FILEFONTS)
+     (if
 (EQ '* (fetch
 (FONTSPEC FSDEVICE) of
 FONTSPEC))
+         then
 
+              (* ;; 
 
 "The results for each device will be grouped together, because the sort happens in the clause below")

 
-                  (for
 I in
 IMAGESTREAMTYPES join
 (FONTSAVAILABLE
 FONTSPEC NIL NIL NIL (CAR I)
-                                                         CHECKFILESTOO?))
-           else
 (SPREADFONTSPEC FONTSPEC)                    (* ; "For easier matching code")

-                (SORTFONTSPECS
 (UNION (CL:UNLESS (EQ 'ONLY CHECKFILESTOO?)
-                                          [COLLECTMULTI \FONTSINCORE
-                                                 (FUNCTION (LAMBDA (FM S FC R D FONT)
-                                                             (DECLARE
 (USEDFREE $$COLLECT))
-                                                             (CL:WHEN 
-                                                                 [AND (OR (EQ FAMILY FM)
-                                                                          (EQ FAMILY '*))
-                                                                      (OR (EQ SIZE S)
-                                                                          (EQ SIZE '*))
-                                                                      (MATCHFONTFACE
 FACE FC)
-                                                                      (OR (EQ ROTATION R)
-                                                                          (EQ ROTATION '*))
-                                                                      (OR (EQ DEVICE D)
-                                                                          (EQ DEVICE '*]
-                                                                 (push
 $$COLLECT
-                                                                       (create
 FONTSPEC
-                                                                              FSFAMILY _ FM
-                                                                              FSSIZE _ S
-                                                                              FSFACE _ FC
-                                                                              FSROTATION _ R
-                                                                              FSDEVICE _ D)))])
-                                      (CL:WHEN CHECKFILESTOO?(* ; 
+              (for
 I in
 IMAGESTREAMTYPES join
 (FONTSAVAILABLE
 FONTSPEC NIL NIL NIL (CAR I)
+                                                     CHECKFILESTOO?))
+       else

+       (SPREADFONTSPEC FONTSPEC)                             (* ; "For easier matching code")

+       (SORTFONTSPECS

+        (UNION (CL:UNLESS (EQ 'ONLY CHECKFILESTOO?)
+                   [COLLECTMULTI \FONTSINCORE
+                          (FUNCTION (LAMBDA (FM S FC R D FONT)
+                                      (DECLARE
 (USEDFREE $$COLLECT))
+                                      (CL:WHEN [AND (OR (EQ FAMILY FM)
+                                                        (EQ FAMILY '*))
+                                                    (OR (EQ SIZE S)
+                                                        (EQ SIZE '*))
+                                                    (MATCHFONTFACE
 FACE FC)
+                                                    (OR (EQ ROTATION R)
+                                                        (EQ ROTATION '*))
+                                                    (OR (EQ DEVICE D)
+                                                        (EQ DEVICE '*]
+                                          (push
 $$COLLECT
+                                                (create
 FONTSPEC
+                                                       FSFAMILY _ FM
+                                                       FSSIZE _ S
+                                                       FSFACE _ FC
+                                                       FSROTATION _ R
+                                                       FSDEVICE _ D)))])
+               (CL:WHEN CHECKFILESTOO?                       (* ; 
 
                                                             "apply the device font lookup function.")

-                                          (LET [(FN (OR (CAR (GETMULTI IMAGESTREAMTYPES DEVICE
-                                                                    'FONTSAVAILABLE))
-                                                        (FUNCTION \SEARCHFONTFILES]
+                   (SETQ FILEFONTS (SGETMULTI \FONTSAVAILABLEFILECACHE FAMILY SIZE FACE ROTATION 
+                                          DEVICE))
 
-                                               (* ;; "Until all the device functions take a FONTSPEC")

+                   (* ;; "APPEND the cache value because of the SORT")

 
-                                               (CL:IF (EQ 1 (NARGS FN))
-                                                   (APPLY* FN FONTSPEC)
-                                                   (APPLY* FN FAMILY SIZE FACE ROTATION DEVICE))))])
+                   (APPEND (if
 (NULL FILEFONTS)
+                               then
 (LET [(FN (OR (CAR (GETMULTI IMAGESTREAMTYPES DEVICE 
+                                                              'FONTSAVAILABLE))
+                                                  (FUNCTION \SEARCHFONTFILES]
+
+                                         (* ;; "Until all the device functions take a FONTSPEC")

+
+                                         (SETQ FILEFONTS (CL:IF (EQ 1 (NARGS FN))
+                                                             (APPLY* FN FONTSPEC)
+                                                             (APPLY* FN FAMILY SIZE FACE ROTATION 
+                                                                    DEVICE)))
+                                         (SPUTMULTI \FONTSAVAILABLEFILECACHE FAMILY SIZE FACE 
+                                                ROTATION DEVICE (OR FILEFONTS 'NONE))
+                                         FILEFONTS)
+                             elseif
 (NEQ FILEFONTS 'NONE)
+                               then
 FILEFONTS)))])
 
 (FONTEXISTS?

   [LAMBDA (FAMILY SIZE FACE ROTATION DEVICE NOCOERCIONS)
     (* ; "Edited 26-Sep-2025 10:10 by rmk")


@@ -2952,47 +2878,52 @@
                                                                                      FONTSFOUND)
                         do
 (push
 FONTSFOUND THISFONT))) finally
 (RETURN (DREVERSE FONTSFOUND])
 
+(FLUSHFONTCACHE

+  [LAMBDA (TYPE FAMILY SIZE FACE ROTATION DEVICE)
            (* ; "Edited 27-Nov-2025 10:02 by rmk")


+                                                             (* ; "Edited 22-Nov-2025 15:52 by rmk")

+
+    (* ;; 
+
    "Removes information for font(s) from the TYPE cache, if TYPE is NIL, all caches are flushed")

+
+    (CL:UNLESS TYPE
+        (SETQ TYPE '(:INCORE :EXISTS :AVAILABLE)))
+    (if
 (LISTP TYPE)
+        then
 (for
 TY in
 TYPE collect
 (FLUSHFONTCACHE
 TY FAMILY SIZE FACE ROTATION DEVICE))
+      else
 
+           (* ;; "If all NILs, don't want the default font")

+
+           (SPREADFONTSPEC (\FONT.CHECKARGS
 (OR FAMILY '*)
+                                  (OR SIZE '*)
+                                  (OR FACE '*)
+                                  (OR ROTATION '*)
+                                  (OR DEVICE '*)
+                                  T))
+           (LET ((NFLUSHED 0)
+                 FONTX)
+                (DECLARE
 (SPECVARS NFLUSHED))
+                [MAPMULTI (SELECTQ TYPE
+                              (:INCORE \FONTSINCORE)
+                              (:EXISTS \FONTEXISTS?-CACHE)
+                              (:AVAILABLE \FONTSAVAILABLEFILECACHE)
+                              (\ILLEGAL.ARG TYPE))
+                       (FUNCTION (LAMBDA (FM S FC R DPAIR)
+                                   (CL:WHEN (AND (OR (EQ FAMILY FM)
+                                                     (EQ FAMILY '*))
+                                                 (OR (EQ SIZE S)
+                                                     (EQ SIZE '*))
+                                                 (MATCHFONTFACE
 FACE FC)
+                                                 (OR (EQ ROTATION R)
+                                                     (EQ ROTATION '*))
+                                                 (OR (EQ DEVICE (CAR DPAIR))
+                                                     (EQ DEVICE '*))
+                                                 (CDR DPAIR))
+                                       (ADD
 NFLUSHED 1)
+                                       (RPLACD DPAIR))]
+                (LIST TYPE NFLUSHED])
+
 (FLUSHFONTSINCORE

-  [LAMBDA (FAMILY SIZE FACE ROTATION DEVICE)
                 (* ; "Edited 26-Sep-2025 10:04 by rmk")


-                                                             (* ; "Edited  4-Sep-2025 10:14 by rmk")


-                                                             (* ; "Edited 28-Aug-2025 14:44 by rmk")


-                                                             (* ; "Edited 18-Aug-2025 00:33 by rmk")


-                                                             (* ; "Edited 12-Aug-2025 21:07 by rmk")


-                                                             (* ; "Edited 21-Jul-2025 08:59 by rmk")


-                                                             (* ; "Edited 21-Jun-2025 11:19 by rmk")

-    (DECLARE
 (SPECVARS . T)
-           (GLOBALVARS \FONTSINCORE \FONTEXISTS?-CACHE))
-    (SPREADFONTSPEC (\FONT.CHECKARGS
 FAMILY SIZE FACE ROTATION DEVICE))
-    (LET ((INCOREFLUSHED 0)
-          (EXISTSFLUSHED 0))
-         (DECLARE
 (SPECVARS INCOREFLUSHED EXISTSFLUSHED))
-         [MAPMULTI \FONTSINCORE (FUNCTION (LAMBDA (FM S FC R DPAIR)
-                                            (CL:WHEN (AND (OR (EQ FAMILY FM)
-                                                              (EQ FAMILY '*))
-                                                          (OR (EQ SIZE S)
-                                                              (EQ SIZE '*))
-                                                          (MATCHFONTFACE
 FACE FC)
-                                                          (OR (EQ ROTATION R)
-                                                              (EQ ROTATION '*))
-                                                          (OR (EQ DEVICE (CAR DPAIR))
-                                                              (EQ DEVICE '*))
-                                                          (CDR DPAIR))
-                                                (ADD
 INCOREFLUSHED 1)
-                                                (RPLACD DPAIR))]
-         [MAPMULTI \FONTEXISTS?-CACHE (FUNCTION (LAMBDA (FM S FC R DPAIR)
-                                                  (CL:WHEN (AND (OR (EQ FAMILY FM)
-                                                                    (EQ FAMILY '*))
-                                                                (OR (EQ SIZE S)
-                                                                    (EQ SIZE '*))
-                                                                (MATCHFONTFACE
 FACE FC)
-                                                                (OR (EQ ROTATION R)
-                                                                    (EQ ROTATION '*))
-                                                                (OR (EQ DEVICE (CAR DPAIR))
-                                                                    (EQ DEVICE '*))
-                                                                (CDR DPAIR))
-                                                      (ADD
 EXISTSFLUSHED 1)
-                                                      (RPLACD DPAIR))]
-         (LIST INCOREFLUSHED EXISTSFLUSHED])
+  [LAMBDA (FAMILY SIZE FACE ROTATION DEVICE)
                 (* ; "Edited 22-Nov-2025 10:23 by rmk")

+    (FLUSHFONTCACHE
 :INCORE FAMILY SIZE FACE ROTATION DEVICE])
 
 (FINDFONTFILES

   [LAMBDA (FAMILY SIZE FACE ROTATION DEVICE DIRLST EXTLST)
   (* ; "Edited 28-Aug-2025 14:45 by rmk")


@@ -3095,7 +3026,10 @@
                       (EQ PEXPANSION '*])
 
 (MAKEFONTFACE

-  [LAMBDA (WEIGHT SLOPE EXPANSION BASE COLOR)
                (* ; "Edited 30-Aug-2025 10:22 by rmk")

+  [LAMBDA (WEIGHT SLOPE EXPANSION BASE COLOR)
                (* ; "Edited  7-Nov-2025 08:50 by rmk")


+                                                             (* ; "Edited 30-Aug-2025 10:22 by rmk")

+    (CL:WHEN (FONTP
 BASE)
+        (SETQ BASE (FONTPROP
 BASE 'FACE)))
     (CL:UNLESS WEIGHT
         (SETQ WEIGHT (CL:IF BASE
                          (fetch
 (FONTFACE WEIGHT) of
 BASE)
@@ -3154,7 +3088,19 @@
 
 (RPAQ? \FONTEXISTS?-CACHE
 NIL)
 
+(RPAQ? \FONTSAVAILABLEFILECACHE
 NIL)
+
 (RPAQ? \DEFAULTDEVICEFONTS
 NIL)
+
+
+
+(* ;; 
+"The INITVARS value of MEDLEY-INIT-VARS in MEDLEY dalso includes these entries.  That's because FONT is in the INIT, so these entries would be lost when MEDLEY-INIT-VARS is reinitialized when the Lisp loadup starts"
+)

+
+
+(ADDTOVAR MEDLEY-INIT-VARS
 (\FONTEXISTS?-CACHE NIL RESET)
+                           (\FONTSAVAILABLEFILECACHE NIL RESET))
 (DECLARE%: DOEVAL@COMPILE DONTCOPY
 
 (GLOBALVARS \DEFAULTDEVICEFONTS \UNITWIDTHSVECTOR)
@@ -3422,19 +3368,6 @@
 (CONSTANTS (SLUGCHARINDEX (ADD1 \MAXTHINCHAR))
        (SLUGCHARSET (ADD1 \MAXCHARSET)))
 )
-(DECLARE%: EVAL@COMPILE 
-
-(PUTPROPS LEGACYFONTS
 MACRO
 ((F . FORMS)                     (* ; 
-
                                                        "Execute FORMS in a  legacy font environment")

-                             (RESETLST
-                                 (RESETSAVE \FONTSINCORE NIL)
-                                 (RESETSAVE \FONTEXISTS?-CACHE)
-                                 (RESETSAVE DISPLAYFONTCOERCIONS)
-                                 (RESETSAVE DISPLAYCHARCOERCIONS)
-                                 (RESETSAVE DISPLAYFONTEXTENSIONS '(DISPLAYFONT))
-                                 (RESETSAVE DISPLAYFONTDIRECTORIES (MEDLEYDIR "fonts>displayfonts>"))
-                                 (PROGN F . FORMS))))
-)
 
 (* "END EXPORTED DEFINITIONS")
 
@@ -4650,44 +4583,44 @@
 (ADDTOVAR LAMA
 FONTCOPY)
 )
 (DECLARE%: DONTCOPY
-  (FILEMAP (NIL (12132 21845 (CHARWIDTH 12142 . 12927) (CHARWIDTHY 12929 . 14446) (STRINGWIDTH 14448 . 
-15541) (\CHARWIDTH.DISPLAY 15543 . 15956) (\STRINGWIDTH.DISPLAY 15958 . 16382) (\STRINGWIDTH.GENERIC 
-16384 . 21843)) (21846 28366 (DEFAULTFONT 21856 . 23141) (FONTCLASS 23143 . 25305) (FONTCLASSUNPARSE 
-25307 . 26206) (FONTCLASSCOMPONENT 26208 . 26796) (SETFONTCLASSCOMPONENT 26798 . 27240) (
-GETFONTCLASSCOMPONENT 27242 . 28364)) (30045 54426 (FONTCREATE 30055 . 33300) (FONTCREATE1 33302 . 
-35917) (FONTCREATE.SLUGFD 35919 . 37401) (\FONT.CHECKARGS 37403 . 43993) (\FONT.CHECKARGS1 43995 . 
-48518) (\FONTCREATE1.NOFN 48520 . 48734) (FONTFILEP 48736 . 49624) (\READCHARSET 49626 . 54424)) (
-54427 61344 (\FONT.CHECKARGS 54437 . 61027) (\CHARSET.CHECK 61029 . 61342)) (61345 64428 (
-COERCEFONTSPEC 61355 . 64426)) (66498 67288 (MAKEFONTSPEC 66508 . 67286)) (67289 75466 (COMPLETE.FONT 
-67299 . 69822) (COMPLETEFONTP 69824 . 70447) (COMPLETE.CHARSET 70449 . 73134) (PRUNESLUGCSINFOS 73136
- . 74061) (MONOSPACEFONTP 74063 . 75464)) (75505 83426 (FONTASCENT 75515 . 75899) (FONTDESCENT 75901
- . 76386) (FONTHEIGHT 76388 . 76790) (FONTPROP 76792 . 82703) (\AVGCHARWIDTH 82705 . 83424)) (84083 
-84991 (FONTDEVICEPROP 84093 . 84989)) (85037 85891 (EDITCHAR 85047 . 85889)) (85937 98127 (
-GETCHARBITMAP 85947 . 87071) (PUTCHARBITMAP 87073 . 89231) (\GETCHARBITMAP.CSINFO 89233 . 91249) (
-\PUTCHARBITMAP.CSINFO 91251 . 98125)) (98128 118608 (MOVECHARBITMAP 98138 . 100032) (MOVEFONTCHARS 
-100034 . 103994) (\MOVEFONTCHAR 103996 . 108839) (\MOVEFONTCHARS.SOURCEDATA 108841 . 114946) (
-\MAKESLUGCHAR 114948 . 117483) (SLUGCHARP.DISPLAY 117485 . 118606)) (119541 139679 (FONTFILES 119551
- . 121384) (\FINDFONTFILE 121386 . 123103) (\FONTFILENAMES 123105 . 124100) (\FONTFILENAME 124102 . 
-128085) (\FONTFILENAME.OLD 128087 . 131036) (\FONTFILENAME.NEW 131038 . 133295) (FONTSPECFROMFILENAME 
-133297 . 137398) (\FONTINFOFROMFILENAME.OLD 137400 . 139677)) (139946 175749 (FONTCOPY 139956 . 145019
-) (FONTP 145021 . 145320) (FONTUNPARSE 145322 . 147041) (SETFONTDESCRIPTOR 147043 . 148507) (
-\STREAMCHARWIDTH 148509 . 152673) (\COERCECHARSET 152675 . 155270) (\BUILDSLUGCSINFO 155272 . 158895) 
-(\FONTSYMBOL 158897 . 159547) (\DEVICESYMBOL 159549 . 160418) (\FONTFACE 160420 . 167610) (
-\FONTFACE.COLOR 167612 . 174532) (SETFONTCHARENCODING 174534 . 175747)) (175750 196301 (FONTSAVAILABLE
- 175760 . 180615) (FONTEXISTS? 180617 . 184595) (\SEARCHFONTFILES 184597 . 187682) (FLUSHFONTSINCORE 
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-\FSETLEFTKERN 222054 . 222545) (\FGETLEFTKERN 222547 . 224472)) (224475 234111 (\CREATEFONT 224485 . 
-225924) (\CREATECHARSET 225926 . 229862) (\INSTALLCHARSETINFO 229864 . 233198) (
-\INSTALLCHARSETINFO.CHARENCODING 233200 . 234109)) (234433 235797 (\FONTRESETCHARWIDTHS 234443 . 
-235795)) (236427 246474 (\CREATEDISPLAYFONT 236437 . 238286) (\CREATECHARSET.DISPLAY 238288 . 243997) 
-(\FONTEXISTS?.DISPLAY 243999 . 246472)) (246475 261340 (STRIKEFONT.FILEP 246485 . 247373) (
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-261338)) (261371 277688 (MAKEBOLD.CHARSET 261381 . 265030) (MAKEBOLD.CHAR 265032 . 266784) (
-MAKEITALIC.CHARSET 266786 . 270459) (MAKEITALIC.CHAR 270461 . 272807) (\SFMAKEBOLD 272809 . 275033) (
-\SFMAKEITALIC 275035 . 277686)) (277689 281838 (\SFMAKEROTATEDFONT 277699 . 279100) (\SFROTATECSINFO 
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-281839 283220 (\SFMAKECOLOR 281849 . 283218)))))
+  (FILEMAP (NIL (12144 21857 (CHARWIDTH 12154 . 12939) (CHARWIDTHY 12941 . 14458) (STRINGWIDTH 14460 . 
+15553) (\CHARWIDTH.DISPLAY 15555 . 15968) (\STRINGWIDTH.DISPLAY 15970 . 16394) (\STRINGWIDTH.GENERIC 
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+ . 83285) (\GETCHARBITMAP.CSINFO 83287 . 85303) (\PUTCHARBITMAP.CSINFO 85305 . 92179)) (92182 112662 (
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+131889 . 134166)) (134435 170238 (FONTCOPY 134445 . 139508) (FONTP 139510 . 139809) (FONTUNPARSE 
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+\DEVICESYMBOL 154038 . 154907) (\FONTFACE 154909 . 162099) (\FONTFACE.COLOR 162101 . 169021) (
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 STOP
diff --git a/sources/FONT.LCOM b/sources/FONT.LCOM
index 98ce344aaf2ef4e25885aec7ccea12b2960ab033..767c19f914d1cfabd66278e912f339a480b448a4 100644
GIT binary patch
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zZ&_=d{)S0z;^eq+88dwnCmHtK&5^9MdJ79{^+Wvr4qqGC%JEr^=wiY5ikgtkA@3`^
Vq}w0e{JP9u|MgIN=r{LO{tJYKD~JF9

diff --git a/sources/MEDLEYDIR b/sources/MEDLEYDIR
index 124a06c6..ef363133 100644
--- a/sources/MEDLEYDIR
+++ b/sources/MEDLEYDIR
@@ -1,12 +1,12 @@
 (DEFINE-FILE-INFO PACKAGE "INTERLISP" READTABLE "INTERLISP" BASE 10)
 
-
(FILECREATED "23-Aug-2025 17:25:03" {DSK}<home>larry>il>medley>sources>MEDLEYDIR.;36
 12210  
+
(FILECREATED "26-Nov-2025 21:51:39" {WMEDLEY}<sources>MEDLEYDIR.;43
 15970  
 
-      :EDIT-BY "lmm"
+      :EDIT-BY rmk
 
-      :CHANGES-TO (FNS MEDLEYDIR)
+      :CHANGES-TO (VARS MEDLEYDIRCOMS)
 
-      :PREVIOUS-DATE "18-Aug-2025 11:19:10" {DSK}<home>larry>il>medley>sources>MEDLEYDIR.;34)
+      :PREVIOUS-DATE "26-Nov-2025 17:12:16" {WMEDLEY}<sources>MEDLEYDIR.;42)
 
 
 (PRETTYCOMPRINT MEDLEYDIRCOMS)
@@ -25,7 +25,47 @@
         
         (* ;; "**WARNING**  The EVALed expressions get run early in the lodup.")

 
-        (VARS MEDLEY-INIT-VARS)
+        
+        (* ;; "The INITVARS prevents this from accumulating entries from other files that happen to have been loaded when this is worked on and saved.  The loadup scripts set MEDLEY-INIT-VARS to NOBIND to make sure that these are the initial values (as opposed to whatever there was in the startup sysout.  But the FONT cache variables have to be specified here, because FONT is in the INIT and the resetting to NOBIND would wipe out these entries even if they were already correct in the init sysout.")

+
+        [INITVARS (MEDLEY-INIT-VARS '((\FONTEXISTS?-CACHE NIL RESET)
+                                      (\FONTSAVAILABLEFILECACHE NIL RESET)
+                                      [LISPUSERSDIRECTORIES (MEDLEYDIR '("library" "lispusers" 
+                                                                               "internal" 
+                                                                               "greetfiles" 
+                                                                               "doctools"]
+                                      [LISPSOURCEDIRECTORIES (MEDLEYDIR '("sources"]
+                                      (LISPSOURCEDIRECTORY (CAR LISPSOURCEDIRECTORIES))
+                                      (IRM.HOST&DIR (MEDLEYDIR '"docs/dinfo"))
+                                      (IRM.DINFOGRAPH)
+                                      (DIRECTORIES (APPEND LISPUSERSDIRECTORIES LISPSOURCEDIRECTORIES
+                                                          ))
+                                      (LOGINHOST/DIR (LET [(LHD (DIRECTORYNAME (OR (UNIX-GETENV
+                                                                                    "LOGINDIR")
+                                                                                   (UNIX-GETENV
+                                                                                    "HOME"]
+                                                          (AND (GETD 'PSEUDOHOSTS)
+                                                               (TARGETHOST 'LI)
+                                                               (PSEUDOHOST 'LI LHD))
+                                                          LHD)
+                                             RESET)
+                                      (USERGREETFILES [LIST (CONS LOGINHOST/DIR '("INIT" COM))
+                                                            (CONS LOGINHOST/DIR '("INIT"]
+                                             RESET)
+                                      (DISPLAYFONTDIRECTORIES (MEDLEYDIR '("fonts/medleydisplayfonts"
+                                                                           "fonts/displayfonts")
+                                                                     NIL NIL T))
+                                      (POSTSCRIPTFONTDIRECTORIES (MEDLEYDIR '("fonts/postscriptfonts"
+                                                                              )
+                                                                        NIL NIL T))
+                                      (INTERPRESSFONTDIRECTORIES (MEDLEYDIR '("fonts/ipfonts")
+                                                                        NIL NIL T))
+                                      (UNICODEDIRECTORIES (MEDLEYDIR '("unicode/xerox")
+                                                                 NIL NIL T))
+                                      (XCL::*WHERE-IS-CASH-FILES* (MEDLEYDIR '("loadups")
+                                                                         "whereis.hash" NIL T))
+                                      (LOADUPSDIRECTORIES (MEDLEYDIR '("loadups")
+                                                                 NIL NIL T]
         (DECLARE%: EVAL@COMPILE DOCOPY (ADDVARS (GLOBALVARS MEDLEYDIR MEDLEY-INIT-VARS 
                                                        \SAVE.MEDLEYDIR DIRECTORIES SYSOUTCOMMITS])
 
@@ -201,50 +241,49 @@
 (* ;; "**WARNING**  The EVALed expressions get run early in the lodup.")

 
 
-(RPAQQ MEDLEY-INIT-VARS

-       ((ShellBrowser)
-        (ShellOpener)
-        [LISPUSERSDIRECTORIES (MEDLEYDIR '("library" "lispusers" "internal" "greetfiles" "doctools"]
-        [LISPSOURCEDIRECTORIES (MEDLEYDIR '("sources"]
-        (LISPSOURCEDIRECTORY (CAR LISPSOURCEDIRECTORIES))
-        (IRM.HOST&DIR (MEDLEYDIR '"docs/dinfo"))
-        (IRM.DINFOGRAPH)
-        (DIRECTORIES (APPEND LISPUSERSDIRECTORIES LISPSOURCEDIRECTORIES))
-        (LOGINHOST/DIR (LET [(LHD (DIRECTORYNAME (OR (UNIX-GETENV "LOGINDIR")
-                                                     (UNIX-GETENV "HOME"]
-                            (AND (GETD 'PSEUDOHOSTS)
-                                 (TARGETHOST 'LI)
-                                 (PSEUDOHOST 'LI LHD))
-                            LHD))
-        [USERGREETFILES (LIST (CONS LOGINHOST/DIR '("INIT" COM))
-                              (CONS LOGINHOST/DIR '("INIT"]
-        (DISPLAYFONTDIRECTORIES (MEDLEYDIR '("fonts/medleydisplayfonts" "fonts/displayfonts")
-                                       NIL NIL T))
-        (POSTSCRIPTFONTDIRECTORIES (MEDLEYDIR '("fonts/postscriptfonts")
-                                          NIL NIL T))
-        (INTERPRESSFONTDIRECTORIES (MEDLEYDIR '("fonts/ipfonts")
-                                          NIL NIL T))
-        (UNICODEDIRECTORIES (MEDLEYDIR '("unicode/xerox")
-                                   NIL NIL T))
-        (LOGINHOST/DIR (LET [(LHD (DIRECTORYNAME (OR (UNIX-GETENV "LOGINDIR")
-                                                     (UNIX-GETENV "HOME"]
-                            (AND (GETD 'PSEUDOHOSTS)
-                                 (TARGETHOST 'LI)
-                                 (PSEUDOHOST 'LI LHD))
-                            LHD)
-               RESET)
-        (USERGREETFILES [LIST (CONS LOGINHOST/DIR '("INIT" COM))
-                              (CONS LOGINHOST/DIR '("INIT"]
-               RESET)
-        (XCL::*WHERE-IS-CASH-FILES* (MEDLEYDIR '("loadups")
-                                           "whereis.hash" NIL T))
-        (LOADUPSDIRECTORIES (MEDLEYDIR '("loadups")
-                                   NIL NIL T))))
+
+
+(* ;; 
+"The INITVARS prevents this from accumulating entries from other files that happen to have been loaded when this is worked on and saved.  The loadup scripts set MEDLEY-INIT-VARS to NOBIND to make sure that these are the initial values (as opposed to whatever there was in the startup sysout.  But the FONT cache variables have to be specified here, because FONT is in the INIT and the resetting to NOBIND would wipe out these entries even if they were already correct in the init sysout."
+)

+
+
+(RPAQ? MEDLEY-INIT-VARS

+       '((\FONTEXISTS?-CACHE NIL RESET)
+         (\FONTSAVAILABLEFILECACHE NIL RESET)
+         [LISPUSERSDIRECTORIES (MEDLEYDIR '("library" "lispusers" "internal" "greetfiles" "doctools"]
+         [LISPSOURCEDIRECTORIES (MEDLEYDIR '("sources"]
+         (LISPSOURCEDIRECTORY (CAR LISPSOURCEDIRECTORIES))
+         (IRM.HOST&DIR (MEDLEYDIR '"docs/dinfo"))
+         (IRM.DINFOGRAPH)
+         (DIRECTORIES (APPEND LISPUSERSDIRECTORIES LISPSOURCEDIRECTORIES))
+         (LOGINHOST/DIR (LET [(LHD (DIRECTORYNAME (OR (UNIX-GETENV "LOGINDIR")
+                                                      (UNIX-GETENV "HOME"]
+                             (AND (GETD 'PSEUDOHOSTS)
+                                  (TARGETHOST 'LI)
+                                  (PSEUDOHOST 'LI LHD))
+                             LHD)
+                RESET)
+         (USERGREETFILES [LIST (CONS LOGINHOST/DIR '("INIT" COM))
+                               (CONS LOGINHOST/DIR '("INIT"]
+                RESET)
+         (DISPLAYFONTDIRECTORIES (MEDLEYDIR '("fonts/medleydisplayfonts" "fonts/displayfonts")
+                                        NIL NIL T))
+         (POSTSCRIPTFONTDIRECTORIES (MEDLEYDIR '("fonts/postscriptfonts")
+                                           NIL NIL T))
+         (INTERPRESSFONTDIRECTORIES (MEDLEYDIR '("fonts/ipfonts")
+                                           NIL NIL T))
+         (UNICODEDIRECTORIES (MEDLEYDIR '("unicode/xerox")
+                                    NIL NIL T))
+         (XCL::*WHERE-IS-CASH-FILES* (MEDLEYDIR '("loadups")
+                                            "whereis.hash" NIL T))
+         (LOADUPSDIRECTORIES (MEDLEYDIR '("loadups")
+                                    NIL NIL T))))
 (DECLARE%: EVAL@COMPILE DOCOPY 
 
 (ADDTOVAR GLOBALVARS
 MEDLEYDIR MEDLEY-INIT-VARS \SAVE.MEDLEYDIR DIRECTORIES SYSOUTCOMMITS)
 )
 (DECLARE%: DONTCOPY
-  (FILEMAP (NIL (1675 9578 (MEDLEY-INIT-VARS 1685 . 5163) (MEDLEYDIR 5165 . 8378) (MEDLEYSUBSTDIR 8380
- . 9358) (SET-SYSOUT-COMMIT 9360 . 9576)))))
+  (FILEMAP (NIL (5329 13232 (MEDLEY-INIT-VARS 5339 . 8817) (MEDLEYDIR 8819 . 12032) (MEDLEYSUBSTDIR 
+12034 . 13012) (SET-SYSOUT-COMMIT 13014 . 13230)))))
 STOP
diff --git a/sources/MEDLEYDIR.LCOM b/sources/MEDLEYDIR.LCOM
index c6e924a0a8b5e7b4f1c8339e1bee00188fed820c..8ad061fbf7d7a2d0a3055bd589027d17795b6128 100644
GIT binary patch
delta 1333
zcmb`GO=}ZD7{{rg;G(u^(xM0PVMW+jH#VE}#Z}a8GHn;qjV9aLLNC+J)GST1%f2KQ
zk?7frFyPHE;MKDpyeo(wK=I&B=?4(>nN8oUo<!Kg%sg+u|9@sbt3PL-tzMm0Ew8I;
zliCz$d3`Fc7p}>m$d1?c-4<(r*8v$G-diH&3R!z}gMS!G_lt!rNU~NuD4m?dI$hIb
z*a+BuEqmYx;Uyh9Uet6u_rb+p^UIYA94^h}axye%gtLzHoYjk(UdYQ?Ntrh*q*Nn@
zP0EO){T2Fm$Y!ws`KfC&lc1BbX{&Q<5VW^IFD)9@0;#KZ6%=X3sMTR0t!&mx)unnC
z^gA`OVpf;yY8l6Ye0W%XM$c<{e)^~*$BNpkuR{+`_b<cs>nOu+GB7REPWt-+>#|N1
z0-6xQX5h7fI!@e<TQm}`U@UOiZUmiT0c@i6BA-Ukq`uEO5P7)jGT30aX?e7PcJ-Pf
zAe!RW^MWnbPwtC$8W3V~BL^TzM0)H)=mf5h7$J*xHLHSAO(3zqRh=`fvY6DSTMWWD
zU;_k13K`I3%kUE2$fYgl(pHR+3Jt;YeJ@0ysP7>ZUS$_G2q6r57{+VI4TKR5BEhj8
zdU1qob8(ae=Bt(s4s|f6O9Pi~2=R$pWZA$%pE>TPivvW<D|qD47>SZPp?=UG#q@0u
z;>EN8nWMzt18F@kZlP_i&j1NT8g|*UUtAKno8ojEdV-y{0!AC#;CKN(>S%9{FknxF
zEM-C2ziDNC@Rknws@z?!;ww^=bwNv3&AMH`rIw7+A_2>+K#kOijXjcZ-B>ZqiZNFq
z$$Q^Vl9DX`ZDfL<OXY?nzL1*bk5gG(siWuk+tdaAB{?4%oqqK?lON)(^kob_Pv77l
z(<1FhI>#q6Dy~*D1>Q-e_=^nS?)zAdpC6y)Pcs?b96x&|izsDMsu(qb|1EzqEQ((a
z&+vESXZX(WdwT27r}JMV?)f0`oe>39-o&~0QVOaRt2e2OsBjurJ0oL>=GPhZ)Usu+
vstd#>){4aYqgS{*cJ;VWAn{M5z`J9{3H+tAS&83HD<}7@{#SE&f1LgT1|5>P

delta 641
zcma)&QESss6vrtO#K6QQ&1T!-4p(G}H8D47w|X6cthv)-ZEMmE_vT!Kt0v7zojOGN
z0aOsqlaGD`*_-$UeD$?H=oj!|Z$5}#nMhGV-~Ru5&iS9;x!-CZjTbjZj^XXyF>K4O
z0$pZyl~GDSBim`R+mE9jqyr%E*blEgS=mXG$c?wMY~St2ZW8t4Xx|;Cd)an0bgy&2
z$v6E*U|x2XbdZQ`O(a*CZ8OIqaQjDayx4=j$n`p%Q3#WbrfCxBZQU1({}NE4M3=O+
zMw8bA?sd5@n*QLo#Fqc(9UTD!wQXtv<9?%StZoYYI7tYw`c<!Wg@;DB4cb~OgkM+c
zz&ZinXtdWu!xtz(Xl>$N%IGCVEdtU%P-cGryUM}4+@tBK4KKh?CzWZ?d|q#Q0YAq;
zLUmTh>ilv}!UwY-F5dWwV>DWVT1<qXY2i*3$E#WTa2RDe9NG46G>9^MIa3ys<2e_n
zWKF2DtmD1YD&CdP3in(#@vXch)QLh3%gP0z1_cM7DuAyQMYwUnz(YklCSoOI#q-$8
zuZZVYMI9GP$MJn}QMfNf15c?Aj@3LSr85VIGR@($k||1WN;UkNm+`Y&z=io+-vJw*
BxGMkv


From 77562ad954b9cdcea9329d8b2f7043cbbbbaef4a Mon Sep 17 00:00:00 2001
From: rmkaplan <69548581+rmkaplan@users.noreply.github.com>
Date: Mon, 1 Dec 2025 11:50:29 -0800
Subject: [PATCH 13/20] change loadups/branches to loadups/tagged in .gitignore
 (#2392)

---
 .gitignore | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/.gitignore b/.gitignore
index 1434e477..9d7492cd 100644
--- a/.gitignore
+++ b/.gitignore
@@ -31,7 +31,7 @@ loadups/whereis.hash
 loadups/apps.sysout
 loadups/fuller.database
 loadups/build/
-loadups/branches
+loadups/tagged
 loadups/gitinfo
 
 

From 9ebcd6827cff227d0d4116538e76b27b0ad090ad Mon Sep 17 00:00:00 2001
From: Larry Masinter <lmm@acm.org>
Date: Mon, 1 Dec 2025 15:06:15 -0800
Subject: [PATCH 15/20] APPS button points to new primer (#2386)

---
 greetfiles/APPS-INIT      |  23 ++++++++++++-----------
 greetfiles/APPS-INIT.LCOM | Bin 10334 -> 10301 bytes
 2 files changed, 12 insertions(+), 11 deletions(-)

diff --git a/greetfiles/APPS-INIT b/greetfiles/APPS-INIT
index 24dde3f9..21f74cec 100644
--- a/greetfiles/APPS-INIT
+++ b/greetfiles/APPS-INIT
@@ -1,12 +1,12 @@
 (DEFINE-FILE-INFO PACKAGE "INTERLISP" READTABLE "INTERLISP" BASE 10)
 
-
(FILECREATED "25-Feb-2024 13:56:23" {DSK}<home>frank>il>medley>gmedley>greetfiles>APPS-INIT.;17
 23321  
+
(FILECREATED "26-Nov-2025 12:30:08" {DSK}<Users>larry>il>MEDLEY>GREETFILES>APPS-INIT.;2
 23361  
 
-      :CHANGES-TO (VARS APPS-INITCOMS)
-                  (FNS Apps.DoInit Apps.AroundExitFn)
+      :EDIT-BY "lmm"
 
-      :PREVIOUS-DATE "25-Feb-2024 13:14:02" 
-{DSK}<home>frank>il>medley>gmedley>greetfiles>APPS-INIT.;16)
+      :CHANGES-TO (FNS Apps.CreateButtons)
+
+      :PREVIOUS-DATE "25-Feb-2024 13:56:23" {DSK}<Users>larry>il>MEDLEY>GREETFILES>APPS-INIT.;1)
 
 
 (PRETTYCOMPRINT APPS-INITCOMS)
@@ -214,7 +214,8 @@
                                       'MEDLEY-INIT-VARS AROUNDEXITFNS])
 
 (Apps.CreateButtons

-  [LAMBDA (DoDocsToo)
                                      (* ; "Edited 13-Dec-2022 12:51 by frank")


+  [LAMBDA (DoDocsToo)
                                        (* ; "Edited 26-Nov-2025 12:29 by lmm")


+                                                           (* ; "Edited 13-Dec-2022 12:51 by frank")


                                                              (* ; "Edited  7-Dec-2022 11:28 by FGH")


                                                              (* ; "Edited  5-Dec-2022 17:31 by FGH")


                                                              (* ; "Edited 12-Nov-2022 14:52 by FGH")

@@ -229,7 +230,7 @@
                                  "ROOMS")))
            (FEATURES-LABELS (for
 FEATURE in
 FEATURES collect
 (CADDR FEATURE)))
            (DOCS (LIST (LIST "https://interlisp.org/docs/medley/orientation/" "BASICS")
-                       (LIST "https://interlisp.org/documentation/Medley-Primer.pdf" "PRIMER")
+                       (LIST "https://primer.interlisp.org/" "PRIMER")
                        (LIST "https://interlisp.org/documentation/IRM.pdf" "MANUAL")
                        (LIST "https://interlisp.org/documentation/notecards_user_guide_v1.2.pdf" 
                              "NOTECARDS")
@@ -419,8 +420,8 @@
 (BKSYSBUF " ")
 )
 (DECLARE%: DONTCOPY
-  (FILEMAP (NIL (1229 23187 (Apps.InitNotecards 1239 . 5101) (Apps.SetUpNOTECARDSDIRECTORIES 5103 . 6658
-) (Apps.DoInit 6660 . 10257) (Apps.CreateButtons 10259 . 19083) (Apps.CreateLabel 19085 . 19895) (
-Apps.ActivateCLOS 19897 . 21246) (Apps.ActivateRooms 21248 . 22099) (Apps.ShowDoc 22101 . 22250) (
-XCL-USER::EXEC_INTERLISP 22252 . 23024) (Apps.AroundExitFn 23026 . 23185)))))
+  (FILEMAP (NIL (1184 23227 (Apps.InitNotecards 1194 . 5056) (Apps.SetUpNOTECARDSDIRECTORIES 5058 . 6613
+) (Apps.DoInit 6615 . 10212) (Apps.CreateButtons 10214 . 19123) (Apps.CreateLabel 19125 . 19935) (
+Apps.ActivateCLOS 19937 . 21286) (Apps.ActivateRooms 21288 . 22139) (Apps.ShowDoc 22141 . 22290) (
+XCL-USER::EXEC_INTERLISP 22292 . 23064) (Apps.AroundExitFn 23066 . 23225)))))
 STOP
diff --git a/greetfiles/APPS-INIT.LCOM b/greetfiles/APPS-INIT.LCOM
index b3253ecfef408d8361e93c6ddf0f004ea0ca90c2..bcf9748c7f6d9311e0d80de1e0fb2d5821baf87d 100644
GIT binary patch
delta 450
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g+=0%~_S?a3q2g335@(fENn92rSJUJ9_u;Gd3y1`SDF6Tf

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zT=G5hGD{$A$D;hwy!sT^ip&zXJWU0wfFRc}Pyf(hT^FF^fc`T=4O2rCD+41X1@hf%
z2K2p?cW`8|Q>dGQk^(R=fKJ-1%Ty{oIayXl&=(vzx&cL*xv52Z1u1Epx68J10RRET
BkO=?)


From 568621ef390a9ac2c0b6540830e9ea959b9e3ad6 Mon Sep 17 00:00:00 2001
From: Larry Masinter <lmm@acm.org>
Date: Mon, 1 Dec 2025 15:07:07 -0800
Subject: [PATCH 16/20] Relegate old primer to history (#2385)

* Relegate old primer to history

* Old primer converted to HTML also removed
---
 docs/html-primer/Medley-Primer-OnePage.html   |   2 -
 .../Medley-Primer-OnePage_files/Image_001.png | Bin 772 -> 0 bytes
 .../Medley-Primer-OnePage_files/Image_002.png | Bin 799 -> 0 bytes
 .../Medley-Primer-OnePage_files/Image_003.png | Bin 320 -> 0 bytes
 .../Medley-Primer-OnePage_files/Image_004.png | Bin 488 -> 0 bytes
 .../Medley-Primer-OnePage_files/Image_005.png | Bin 420 -> 0 bytes
 .../Medley-Primer-OnePage_files/Image_006.png | Bin 162 -> 0 bytes
 .../Medley-Primer-OnePage_files/Image_007.gif | Bin 98 -> 0 bytes
 .../Medley-Primer-OnePage_files/Image_008.gif | Bin 97 -> 0 bytes
 .../Medley-Primer-OnePage_files/Image_009.gif | Bin 99 -> 0 bytes
 .../Medley-Primer-OnePage_files/Image_010.gif | Bin 69 -> 0 bytes
 .../Medley-Primer-OnePage_files/Image_011.gif | Bin 1973 -> 0 bytes
 .../Medley-Primer-OnePage_files/Image_012.gif | Bin 577 -> 0 bytes
 .../Medley-Primer-OnePage_files/Image_013.gif | Bin 836 -> 0 bytes
 .../Medley-Primer-OnePage_files/Image_014.png | Bin 162 -> 0 bytes
 .../Medley-Primer-OnePage_files/Image_015.png | Bin 320 -> 0 bytes
 .../Medley-Primer-OnePage_files/Image_016.png | Bin 320 -> 0 bytes
 .../Medley-Primer-OnePage_files/Image_017.png | Bin 162 -> 0 bytes
 .../Medley-Primer-OnePage_files/Image_018.gif | Bin 925 -> 0 bytes
 .../Medley-Primer-OnePage_files/Image_019.gif | Bin 916 -> 0 bytes
 .../Medley-Primer-OnePage_files/Image_020.gif | Bin 1816 -> 0 bytes
 .../Medley-Primer-OnePage_files/Image_021.png | Bin 162 -> 0 bytes
 .../Medley-Primer-OnePage_files/Image_022.png | Bin 162 -> 0 bytes
 .../Medley-Primer-OnePage_files/Image_023.gif | Bin 792 -> 0 bytes
 .../Medley-Primer-OnePage_files/Image_024.gif | Bin 1191 -> 0 bytes
 .../Medley-Primer-OnePage_files/Image_025.gif | Bin 312 -> 0 bytes
 .../Medley-Primer-OnePage_files/Image_026.gif | Bin 828 -> 0 bytes
 .../Medley-Primer-OnePage_files/Image_027.gif | Bin 1408 -> 0 bytes
 .../Medley-Primer-OnePage_files/Image_028.png | Bin 320 -> 0 bytes
 .../Medley-Primer-OnePage_files/Image_029.gif | Bin 1614 -> 0 bytes
 .../Medley-Primer-OnePage_files/Image_030.png | Bin 162 -> 0 bytes
 .../Medley-Primer-OnePage_files/Image_031.gif | Bin 1543 -> 0 bytes
 .../Medley-Primer-OnePage_files/Image_032.gif | Bin 1920 -> 0 bytes
 .../Medley-Primer-OnePage_files/Image_033.gif | Bin 1532 -> 0 bytes
 .../Medley-Primer-OnePage_files/Image_034.gif | Bin 1362 -> 0 bytes
 .../Medley-Primer-OnePage_files/Image_035.gif | Bin 1231 -> 0 bytes
 .../Medley-Primer-OnePage_files/Image_036.png | Bin 162 -> 0 bytes
 .../Medley-Primer-OnePage_files/Image_037.gif | Bin 2146 -> 0 bytes
 .../Medley-Primer-OnePage_files/Image_038.png | Bin 9720 -> 0 bytes
 .../Medley-Primer-OnePage_files/Image_039.gif | Bin 3130 -> 0 bytes
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-</style></head><body><p style="padding-left: 47pt;text-indent: 0pt;text-align: left;"><span><img width="137" height="18" alt="image" src="Image_001.png"/></span></p><p class="s1" style="padding-bottom: 3pt;padding-left: 44pt;text-indent: 0pt;line-height: 27pt;text-align: left;"><a name="bookmark0">Venue Medley for the Novice</a></p><p style="padding-left: 5pt;text-indent: 0pt;text-align: left;"><span><img width="137" height="18" alt="image" src="Image_002.png"/></span></p><p style="text-indent: 0pt;text-align: left;"><br/></p><h4 style="padding-top: 18pt;padding-left: 239pt;text-indent: 0pt;line-height: 11pt;text-align: left;"><a name="a0">Release 2.0</a></h4><h4 style="padding-left: 239pt;text-indent: 0pt;line-height: 11pt;text-align: left;">February, 1992</h4><p style="text-indent: 0pt;text-align: left;"><br/></p><p style="padding-left: 35pt;text-indent: 0pt;line-height: 1pt;text-align: left;"><span><img width="665" height="1" alt="image" src="Image_003.png"/></span></p><p style="text-indent: 0pt;text-align: left;"><br/></p><p style="padding-top: 4pt;padding-left: 53pt;text-indent: 0pt;line-height: 11pt;text-align: left;">Address comments to:</p><p style="padding-left: 53pt;text-indent: 0pt;line-height: 11pt;text-align: left;">Venue</p><p style="padding-left: 53pt;text-indent: 0pt;text-align: left;">User Documentation 1549 Industrial Road</p><p style="padding-bottom: 1pt;padding-left: 53pt;text-indent: 0pt;text-align: left;">San Carlos, CA 94070 415-508-9672</p><p style="padding-left: 53pt;text-indent: 0pt;line-height: 2pt;text-align: left;"><span><img width="412" height="3" alt="image" src="Image_004.png"/></span></p><p style="padding-top: 8pt;padding-left: 53pt;text-indent: 0pt;line-height: 174%;text-align: left;">Medley for the Novice Release 2.0</p><p style="padding-left: 53pt;text-indent: 0pt;line-height: 12pt;text-align: left;">February 1992</p><p style="padding-top: 8pt;padding-left: 53pt;text-indent: 0pt;line-height: 169%;text-align: left;">Copyright <span class="s2"></span> 1992 by Venue. All rights reserved.</p><p style="padding-left: 53pt;text-indent: 0pt;text-align: left;">Medley is a trademark of Venue.</p><p style="padding-top: 9pt;padding-left: 53pt;text-indent: 0pt;line-height: 87%;text-align: left;">Xerox<span class="s2"></span> is a registered trademark and InterPress is a trademark of Xerox Corporation.</p><p style="padding-top: 8pt;padding-left: 53pt;text-indent: 0pt;line-height: 169%;text-align: left;">UNIX<span class="s2"></span> is a registered trademark of UNIX System Laboratories. Post Script is a registered trademark of Adobe Systems Inc.</p><p style="padding-left: 53pt;text-indent: 0pt;line-height: 11pt;text-align: left;">Copyright protection includes material generated from the</p><p style="padding-left: 53pt;text-indent: 0pt;line-height: 87%;text-align: left;">software programs displayed on the screen, such as icons, screen display looks, and the like.</p><p style="text-indent: 0pt;text-align: left;"><br/></p><p style="padding-left: 53pt;text-indent: 0pt;line-height: 2pt;text-align: left;"><span><img width="414" height="3" alt="image" src="Image_005.png"/></span></p><p style="padding-top: 9pt;padding-left: 53pt;text-indent: 0pt;line-height: 87%;text-align: left;">The information in this document is subject to change without notice and should not be construed as a commitment by Venue. While every effort has been made to ensure the accuracy of this document, Venue assumes no responsibility for any errors that may appear.</p><p style="text-indent: 0pt;text-align: left;"><br/></p><p style="padding-left: 53pt;text-indent: 0pt;line-height: 87%;text-align: left;">Text was written and produced with Venue text formatting tools; Xerox printers were used to produce text masters. The typeface is Classic.</p><ol id="l1"><li><h1 style="padding-top: 3pt;padding-left: 60pt;text-indent: -25pt;text-align: left;"><a name="bookmark1">BRIEF GLOSSARY</a></h1><p style="padding-left: 35pt;text-indent: 0pt;line-height: 6pt;text-align: left;"><span><img width="640" height="8" alt="image" src="Image_006.png"/></span></p><p style="text-indent: 0pt;text-align: left;"><br/></p><p style="padding-left: 107pt;text-indent: 0pt;text-align: left;">The following definitions will acquaint you with general terms used throughout this primer. You will probably want to read through them now, and use this chapter as a reference while you read through the rest of the primer.</p><p style="text-indent: 0pt;text-align: left;"><br/></p><p style="padding-left: 227pt;text-indent: -59pt;text-align: left;">advising A Medley facility for specifying function modifications without necessarily knowing how a particular function works or even what it does. Even system functions can be changed with</p><p style="padding-left: 227pt;text-indent: 0pt;text-align: left;">advising.</p><p style="padding-top: 7pt;padding-left: 227pt;text-indent: -65pt;text-align: left;">argument A piece of information given to a Lisp function so that it can execute successfully. When a function is explained in the</p><p style="padding-left: 227pt;text-indent: 0pt;text-align: left;">primer, the arguments that it requires will also be given. Arguments are also called Parameters.</p><p style="padding-top: 7pt;padding-left: 183pt;text-indent: 0pt;text-align: left;">atom The smallest structure in Lisp; like a variable in other</p><p style="padding-left: 227pt;text-indent: 0pt;text-align: left;">programming languages, but can also have a property list and a function definition.</p><p style="padding-top: 7pt;padding-left: 227pt;text-indent: -103pt;text-align: left;">Background Menu The menu that appears when the mouse is not in any window and the right mouse button is pressed.</p><p style="padding-top: 7pt;padding-left: 227pt;text-indent: -55pt;text-align: left;">binding The value of a variable. It could be either a local or a global variable. See unbound.</p><p style="padding-top: 7pt;padding-left: 227pt;text-indent: -53pt;text-align: justify;">bitmap A rectangular array of &quot;pixels,&quot; each of which is on or off representing one point in the bitmap image.</p><p class="s3" style="padding-top: 7pt;padding-left: 227pt;text-indent: -50pt;line-height: 106%;text-align: justify;">BREAK <span class="p">An Lisp function that causes a function to stop executing, open a Break window, and allows you to find out what is happening while the function is halted.</span></p><p style="padding-top: 6pt;padding-left: 137pt;text-indent: 0pt;text-align: left;">Break Window A window that opens when an error is encountered while</p><p style="padding-left: 227pt;text-indent: 0pt;text-align: left;">running your program (i.e., when your program has broken).</p><p style="padding-left: 227pt;text-indent: 0pt;text-align: left;">There are tools to help you debug your program from this window. This is explained further in Chapter 14.</p><p style="padding-top: 7pt;padding-left: 227pt;text-indent: -53pt;text-align: left;">browse To examine a data structure by use of a display that allows you to &quot;move&quot; around within the data structure.</p><p style="padding-top: 7pt;padding-left: 178pt;text-indent: 0pt;text-align: left;">button (1) (n.) A key on a mouse.</p><p style="padding-top: 7pt;padding-left: 227pt;text-indent: 0pt;text-align: left;">(2) (v.t.) To press one of the mouse keys when making a selection.</p><p class="s3" style="padding-top: 7pt;padding-left: 188pt;text-indent: 0pt;text-align: left;">CAR <span class="p">A function that returns the head or first element of a list. See</span></p><p class="s3" style="padding-left: 227pt;text-indent: 0pt;text-align: left;">CDR<span class="p">.</span></p><p style="padding-top: 7pt;padding-left: 227pt;text-indent: -44pt;text-align: left;">caret The small blinking arrowhead that marks where text will appear when it is typed in from the keyboard.</p><p class="s3" style="padding-top: 7pt;padding-left: 227pt;text-indent: -38pt;line-height: 107%;text-align: left;">CDR <span class="p">A function that returns the tail (that is, everything but the first element) of a list. See </span>CAR<span class="p">.</span></p><p style="text-indent: 0pt;text-align: left;"><br/></p><p style="padding-top: 4pt;padding-left: 227pt;text-indent: -50pt;text-align: left;">CLlSP A mechanism for augmenting the standard Lisp syntax. One such augmentation included in Interlisp is the iterative</p><p style="padding-left: 197pt;text-indent: 30pt;line-height: 165%;text-align: left;">statement. See Chapter 9. cr Press your Return key.</p><p style="padding-left: 227pt;text-indent: -58pt;text-align: left;">datatype (1) The kind of a datum. In Interlisp, there are many system- defined datatypes, e.g., Floating-Point, Integer, Atom, etc.</p><p style="padding-top: 7pt;padding-left: 227pt;text-indent: 0pt;text-align: left;">(2) A datatype can also be user-defined. In this case, it is like a record made up from system types and other user-defined datatypes.</p><p class="s3" style="padding-top: 7pt;padding-left: 227pt;text-indent: -45pt;text-align: left;">DWIM <span class="p">&quot;Do-what-I-mean.&quot; Many errors made by Medley users could be corrected without any information about the purpose of the program or expression in question (e.g., misspellings, certain kinds of parenthesis errors). The </span>DWIM <span class="p">facility is called</span></p><p style="padding-left: 227pt;text-indent: 0pt;text-align: left;">automatically whenever an error occurs in the evaluation of an Interlisp expression. If <span class="s3">DWIM </span>is able to make a correction, the computation continues as though no error had occurred; otherwise, the standard error mechanism is invoked.</p><p style="padding-top: 7pt;padding-left: 227pt;text-indent: -43pt;text-align: justify;">error Occasionally, while a program is running, an error may occur which will stop the computation. Interlisp provides extensive facilities for detecting and handling error conditions, to</p><p style="padding-left: 227pt;text-indent: 0pt;text-align: justify;">enable the testing, debugging, and revising of imperfect programs.</p><p style="padding-top: 7pt;padding-left: 227pt;text-indent: -99pt;line-height: 107%;text-align: left;">evaluate or <span class="s3">EVAL </span>To find the value of a form. For example, if the variable <span class="s3">X </span>is bound to 5, we get 5 by evaluating <span class="s3">X</span>. Evaluation of a Lisp function involves evaluating the arguments and then</p><p style="padding-left: 227pt;text-indent: 0pt;line-height: 11pt;text-align: left;">applying the function.</p><p style="padding-top: 7pt;padding-left: 120pt;text-indent: 0pt;text-align: left;">Executive Window This is your main window, where you will run functions and</p><p style="padding-left: 227pt;text-indent: 0pt;text-align: left;">develop your programs. This is the window that the caret is in when you turn on your machine and load Medley.</p><p style="padding-top: 7pt;padding-left: 227pt;text-indent: -75pt;text-align: left;">file package A set of functions and conventions that facilitate the bookkeeping involved with working in a large system consisting of many source code files and their compiled counterparts. Essentially, the file package keeps track of</p><p style="padding-left: 227pt;text-indent: 0pt;text-align: left;">where things are and what things have changed. It also keeps track of which files have been modified and need to be</p><p style="padding-left: 227pt;text-indent: 0pt;text-align: left;">updated and recompiled.</p><p style="padding-top: 7pt;padding-left: 227pt;text-indent: -42pt;text-align: left;">form Another way of saying s-expression. A Lisp expression that can be evaluated.</p><p style="padding-top: 1pt;padding-left: 174pt;text-indent: -6pt;line-height: 19pt;text-align: left;">function A piece of Lisp code that executes and returns a value. history The programmer’s assistant is built around a memory</p><p style="padding-left: 227pt;text-indent: 0pt;line-height: 10pt;text-align: left;">structure called the history list. The history functions (e.g.</p><p class="s3" style="padding-left: 227pt;text-indent: 0pt;line-height: 107%;text-align: left;">FIX<span class="p">, </span>UNDO<span class="p">, </span>REDO<span class="p">) are part of this assistant. These operations allow you to conveniently rework previously specified</span></p><p style="padding-left: 227pt;text-indent: 0pt;line-height: 11pt;text-align: left;">operations.</p><p style="padding-top: 7pt;padding-left: 227pt;text-indent: -76pt;text-align: justify;">History List As you type on the screen, you will notice a number followed by a slash, followed by another number. The first number is the exec number, the second is the event number. Each</p><p style="padding-left: 227pt;text-indent: 0pt;text-align: justify;">number, and the information on that line, is stored</p><p style="padding-left: 227pt;text-indent: 0pt;text-align: justify;">sequentially as the History List Using the History List, you</p><p style="text-indent: 0pt;text-align: left;"><br/></p><p style="padding-top: 4pt;padding-left: 227pt;text-indent: 0pt;text-align: left;">can easily reexecute lines typed earlier in a work session. See Chapter 2.</p><p style="padding-top: 7pt;padding-left: 187pt;text-indent: 0pt;text-align: left;">icon A pictorial representation, usually of a shrunken window.</p><p style="padding-top: 7pt;padding-left: 227pt;text-indent: -63pt;text-align: justify;">inspector An interactive display program for examining and changing the parts of a data structure. Medley has inspectors for lists and other data types.</p><p style="padding-top: 7pt;padding-left: 117pt;text-indent: 0pt;text-align: left;">iterative statement (also called i.s.) A statement in Interlisp that repetitively</p><p style="padding-left: 227pt;text-indent: 0pt;line-height: 107%;text-align: left;">executes a body of code For example, <span class="s3">(for x from l to 5 do (PRlNT x)) </span>is an i.s.</p><p style="padding-top: 7pt;padding-left: 227pt;text-indent: -100pt;text-align: left;">iterative variable (also called i.v.) Usually, an iterative statement is controlled by the value that the i.v. takes on. In the iterative statement</p><p style="padding-left: 227pt;text-indent: 0pt;text-align: left;">example above, x is the iterative variable because its value is being changed by each cycle through the loop. All iterative</p><p style="padding-left: 227pt;text-indent: 0pt;text-align: left;">variables are local to the iterative statement where they are defined.</p><p style="padding-top: 7pt;padding-left: 227pt;text-indent: -40pt;text-align: left;">Lisp Family of languages invented for &quot;list processing.&quot; These languages have in common a set of basic primitives for</p><p style="padding-left: 227pt;text-indent: 0pt;text-align: left;">creating and manipulating symbol structures. Interlisp-D is an implementation of the Lisp language together with an</p><p style="padding-left: 227pt;text-indent: 0pt;text-align: left;">environment (set of tools) for programming, and a set of packages that extend the functionality of the system.</p><p style="padding-top: 7pt;padding-left: 227pt;text-indent: -35pt;text-align: left;">list A collection of atoms and lists; a list is denoted by surrounding its contents with a pair of parentheses.</p><p style="padding-top: 7pt;padding-left: 148pt;text-indent: 0pt;text-align: left;">Masterscope A program analysis tool. When told to analyze a program,</p><p style="padding-left: 227pt;text-indent: 0pt;text-align: left;">Masterscope creates a database of information about the</p><p style="padding-left: 227pt;text-indent: 0pt;text-align: left;">program. In particular, Masterscope knows which functions call other functions and which functions use which variables.</p><p style="padding-left: 227pt;text-indent: 0pt;text-align: left;">Masterscope can then answer questions about the program and display the information with a browser.</p><p style="padding-top: 7pt;padding-left: 227pt;text-indent: -46pt;text-align: left;">menu A way of graphically presenting you with a set of options.</p><p style="padding-left: 227pt;text-indent: 0pt;text-align: left;">There are two kinds of menus: pop-up menus are created</p><p style="padding-left: 227pt;text-indent: 0pt;text-align: left;">when needed and disappear after an item has been selected; permanent menus remain on the screen after use until</p><p style="padding-left: 227pt;text-indent: 0pt;text-align: left;">deliberately closed.</p><p style="padding-top: 7pt;padding-left: 227pt;text-indent: -50pt;text-align: left;">mouse The mouse is the box attached to your keyboard. It controls the movement of the cursor on your screen. As you become</p><p style="padding-left: 227pt;text-indent: 0pt;text-align: left;">familiar with the mouse, you will find it much quicker to use the mouse than the keyboard.</p><p style="padding-top: 7pt;padding-left: 141pt;text-indent: 0pt;text-align: left;">Mouse Cursor The small arrow on the screen that points to the northwest.</p><p style="padding-top: 7pt;padding-left: 117pt;text-indent: 0pt;text-align: left;">Mouse Cursor Icons Four types of mouse cursor icons are shown below.</p><p style="padding-top: 9pt;padding-left: 190pt;text-indent: 0pt;text-align: left;"><span><img width="20" height="21" alt="image" src="Image_007.gif"/></span>         Wait. The processor is busy.</p><p style="padding-top: 9pt;padding-left: 227pt;text-indent: -33pt;text-align: left;"><span><img width="17" height="21" alt="image" src="Image_008.gif"/></span>        The Mouse Confirm Cursor. It appears when you have to confirm that the choice you just made was correct. If it was, press the left button. If the choice was not correct, press the right button to abort.</p><p style="text-indent: 0pt;text-align: left;"><br/></p><p style="text-indent: 0pt;text-align: left;"><span><img width="21" height="19" alt="image" src="Image_009.gif"/></span></p><p style="padding-top: 4pt;padding-left: 227pt;text-indent: 0pt;text-align: left;">This means &quot;sweep out&quot; the shape of the window. To do this, move the mouse to a position where you want a corner. Press the left mouse button, and hold it down. Move the mouse</p><p style="padding-left: 227pt;text-indent: 0pt;text-align: left;">diagonally to sketch a rectangle. When the rectangle is the desired size and shape, release the left button.</p><p style="text-indent: 0pt;text-align: left;"><br/></p><p style="text-indent: 0pt;text-align: left;"><span><img width="16" height="16" alt="image" src="Image_010.gif"/></span></p><p style="padding-top: 4pt;padding-left: 227pt;text-indent: 0pt;text-align: left;">This is the &quot;move window&quot; prompt. Move the mouse so that the large &quot;ghost&quot; rectangle is in the position where you want the window. When you click the left mouse button, the</p><p style="padding-left: 227pt;text-indent: 0pt;text-align: left;">window will appear at this new location.</p><p class="s3" style="padding-top: 7pt;padding-left: 227pt;text-indent: -39pt;line-height: 107%;text-align: left;">NIL NIL <span class="p">is the Lisp symbol for the empty list. It can also be represented by a left parenthesis followed by a right</span></p><p style="padding-left: 227pt;text-indent: 0pt;text-align: left;">parenthesis ( ). It is the only expression in Lisp that is both an atom and a list.</p><p style="padding-top: 6pt;padding-left: 184pt;text-indent: 0pt;text-align: justify;">pixel Pixel stands for &quot;picture element.&quot; The computer monitor</p><p style="padding-left: 227pt;text-indent: 0pt;text-align: justify;">screen is made up of a rectangular array of pixels. Each pixel corresponds to one bit. When a bit is turned on (i.e., set to 1), the pixel on the screen represented by this bit is black.</p><p style="padding-top: 7pt;padding-left: 227pt;text-indent: -89pt;text-align: left;">pretty printing Pretty printing refers to the way Lisp functions are printed with special indentation, to make them easier to read.</p><p style="padding-left: 227pt;text-indent: 0pt;text-align: left;">Functions are pretty printed in the structure editor, SEdit</p><p style="padding-left: 227pt;text-indent: 0pt;text-align: left;">(see Chapter 7). You can pretty print uncompiled functions by calling the function <span class="s3">PP </span>with the function you would like to</p><p style="padding-left: 227pt;text-indent: 0pt;line-height: 107%;text-align: left;">see as an argument, i.e. (<span class="s3">PP </span>function-name). For an example of this, see Figure 1.5.</p><p style="text-indent: 0pt;text-align: left;"><br/></p><p style="padding-left: 242pt;text-indent: 0pt;text-align: left;"><span><img width="344" height="230" alt="image" src="Image_011.gif"/></span></p><p style="padding-top: 3pt;padding-left: 252pt;text-indent: 0pt;text-align: left;">Figure 1.5. Example of Pretty Printing Function <span class="s3">PP</span></p><p style="text-indent: 0pt;text-align: left;"><br/></p><p style="padding-left: 141pt;text-indent: 0pt;text-align: left;">Programmer’s</p><p style="padding-left: 227pt;text-indent: -64pt;text-align: left;">Assistant The programmer’s assistant accesses the History List to allow you to <span class="s3">FIX</span>, <span class="s3">UNDO</span>, and/or <span class="s3">REDO </span>your previous expressions</p><p style="padding-left: 227pt;text-indent: 0pt;text-align: left;">typed to the executive window (see Chapter 2).</p><p style="padding-top: 7pt;padding-left: 227pt;text-indent: -95pt;text-align: left;">Prompt Window The narrow black window at the top of the screen. It displays system prompts, or prompts you have developed (see Figure 1.6).</p><p style="text-indent: 0pt;text-align: left;"><br/></p><p style="padding-left: 270pt;text-indent: 0pt;text-align: left;"><span><img width="267" height="101" alt="image" src="Image_012.gif"/></span></p><p style="padding-top: 4pt;padding-left: 307pt;text-indent: 0pt;text-align: left;">Figure 1.6. Prompt Window</p><p style="padding-top: 7pt;padding-left: 149pt;text-indent: 0pt;text-align: left;">property list A list of the form ( &lt;property-namel&gt; &lt;property-value1&gt;</p><p style="padding-left: 227pt;text-indent: 0pt;text-align: left;">&lt;property-name2&gt; &lt;property-value2&gt; ....) associated with an atom. It accessed by the functions <span class="s3">GETPROP </span>and <span class="s3">PUTPROP</span>.</p><p style="padding-top: 7pt;padding-left: 177pt;text-indent: 0pt;text-align: left;">record A record is a data structure that consists of named &quot;fields&quot;.</p><p style="padding-left: 227pt;text-indent: 0pt;text-align: left;">Accessing elements of a record can be separated from the details of how the data structure is actually stored. This</p><p style="padding-left: 227pt;text-indent: 0pt;text-align: left;">eliminates many programming details. A record definition</p><p style="padding-left: 227pt;text-indent: 0pt;text-align: left;">establishes a record template, describing the form of a record. A record instance is an actual record storing data according to a particular record template. (See datatype, second</p><p style="padding-left: 227pt;text-indent: 0pt;text-align: left;">definition.)</p><p style="padding-top: 7pt;padding-left: 108pt;text-indent: 0pt;text-align: left;">Right Button Default</p><p style="padding-left: 139pt;text-indent: 0pt;text-align: left;">Window Menu This is the menu that appears when the mouse is in a</p><p style="padding-left: 227pt;text-indent: 0pt;text-align: left;">window, and the right mouse button is pressed. It looks like the menu in Figure 1.7. If this menu does not appear when you press the right button of the mouse and the mouse is in</p><p style="padding-left: 227pt;text-indent: 0pt;text-align: left;">the window, move the mouse so that it is pointing to the title bar of the window, and press the right button.</p><p style="text-indent: 0pt;text-align: left;"><br/></p><p style="padding-left: 344pt;text-indent: 0pt;text-align: left;"><span><img width="71" height="134" alt="image" src="Image_013.gif"/></span></p><p style="text-indent: 0pt;text-align: left;"><br/></p><p style="padding-left: 260pt;text-indent: 0pt;text-align: left;">Figure 1.7. Right Button Default Window Menu</p><p style="text-indent: 0pt;text-align: left;"><br/></p><p style="padding-left: 227pt;text-indent: -77pt;text-align: justify;">s-expression Short for &quot;symbolic expression&quot;. In Lisp, this refers to any well-formed collection of left parentheses, atoms, and right parentheses.</p><p style="text-indent: 0pt;text-align: left;"><br/></p><p style="padding-left: 227pt;text-indent: -45pt;text-align: left;">stack A pushdown list. Whenever a function is entered, information about that specific function call is pushed onto (i.e., added to</p><p style="padding-left: 227pt;text-indent: 0pt;text-align: left;">the front of) the stack. This information includes the variable names and their values associated with the function call.</p><p style="padding-left: 227pt;text-indent: 0pt;text-align: left;">When the function is exitted, that data is popped off the stack.</p><p style="text-indent: 0pt;text-align: left;"><br/></p><p style="padding-left: 176pt;text-indent: 0pt;text-align: left;">sysout A flle containing a whole Lisp environment: namely,</p><p style="padding-left: 227pt;text-indent: 0pt;text-align: left;">everything you defined or loaded into the environment, the windows that appeared on the screen, the amount of memory</p><p style="padding-left: 227pt;text-indent: 0pt;text-align: left;">used, and so on. Everything is stored in the sysout file exactly as it was when the function <span class="s3">SYSOUT </span>was called.</p><p style="text-indent: 0pt;text-align: left;"><br/></p><p class="s3" style="padding-top: 4pt;padding-left: 176pt;text-indent: 0pt;text-align: justify;">TRACE <span class="p">A function that creates a trace of the execution of another</span></p><p style="padding-left: 227pt;text-indent: 0pt;text-align: justify;">function. Each time the traced function is called, it prints out the values of the arguments it was called with, and prints out the value it returns upon completion.</p><p style="text-indent: 0pt;text-align: left;"><br/></p><p style="padding-left: 227pt;text-indent: -61pt;text-align: left;">unbound Without value; an atom is unbound if a value has never been assigned to it.</p><p style="text-indent: 0pt;text-align: left;"><br/></p><p style="padding-left: 227pt;text-indent: -56pt;text-align: left;">window A rectangular area of the screen that acts as the main display area for some Lisp process,</p><h1 style="padding-top: 3pt;padding-left: 35pt;text-indent: 0pt;text-align: left;"><a name="bookmark2">PREFACE</a></h1><p style="padding-left: 35pt;text-indent: 0pt;line-height: 6pt;text-align: left;"><span><img width="640" height="8" alt="image" src="Image_014.png"/></span></p><p style="text-indent: 0pt;text-align: left;"><br/></p><p class="s4" style="padding-left: 107pt;text-indent: 0pt;text-align: justify;">It was dawn and the local told him it was down the road a piece, left at the first fishing bridge in the country, right at the appletree stump, and onto the dirt road just before the hill. At midnight he knew he was lost. <span class="p">-Anonymous</span></p><p style="text-indent: 0pt;text-align: left;"><br/></p><p style="padding-left: 107pt;text-indent: 0pt;text-align: left;">Welcome to the Medley Lisp Development Environment, a collection of powerful tools for assisting you in programming in Lisp, developing sophisticated user interfaces, and creating prototypes of your ideas in a quick and easy manner. Unfortunately, along</p><p style="padding-left: 107pt;text-indent: 0pt;text-align: left;">with the power comes mind-numbing complexity. The Medley documentation set</p><p style="padding-left: 107pt;text-indent: 0pt;text-align: left;">describes all the tools in detail, but it would be unreasonable for us to expect a new user to wade through all of it, so this primer is intended as an introduction, to give you a</p><p style="padding-left: 107pt;text-indent: 0pt;text-align: left;">taste of some of the features.</p><p style="padding-top: 7pt;padding-left: 107pt;text-indent: 0pt;text-align: left;">We developed this primer to provide a starting point for new Medley users, to enhance your excitement and challenge you with the potential before you. We’re going to make some assumptions about you. For starters, we’re going to assume that you’re sitting at a workstation that can run Medley. All of the examples in the book figure that you’re</p><p style="padding-left: 107pt;text-indent: 0pt;text-align: left;">going to want to try things out. We’re also going to assume that you’ve had some exposure to Lisp, hopefully Common Lisp.</p><p style="padding-top: 7pt;padding-left: 107pt;text-indent: 0pt;text-align: left;">Medley actually consists of two complete Lisp implementations, Common Lisp and InterLisp. All the screen I/O and some of the system functions are in InterLisp.</p><p style="padding-left: 107pt;text-indent: 0pt;text-align: left;">However, thanks to the package system, you can call back and forth between the two languages by simply including a package delimiter in front of a symbol name. This sounds complicated, but it will become clearer once we do some examples.</p><p style="padding-top: 7pt;padding-left: 107pt;text-indent: 0pt;text-align: justify;">Throughout we make reference to the <i>lnterlisp-D Reference Manual </i>by section and page number. The material in the primer is just an introduction. When you need more depth, use the detailed treatment provided in the manual.</p><p style="padding-top: 7pt;padding-left: 107pt;text-indent: 0pt;text-align: left;">While only you can plot your ultimate destination, you will flnd this primer</p><p style="padding-left: 107pt;text-indent: 0pt;text-align: left;">indispensable for clearly defining and guiding you to the first landmarks on your way.</p><p style="text-indent: 0pt;text-align: left;"><br/></p><p class="s5" style="padding-left: 107pt;text-indent: 0pt;text-align: left;">Acknowledgements</p><p style="padding-top: 7pt;padding-left: 107pt;text-indent: 0pt;text-align: left;">The early inspiration and model for this primer came from the Intelligent Tutoring</p><p style="padding-left: 107pt;text-indent: 0pt;text-align: left;">Systems group and the Learning Research and Development Center at the University of Pittsburgh. We gratefully acknowledge their pioneering contribution to more effective</p><p style="padding-left: 107pt;text-indent: 0pt;text-align: left;">artificial intelligence.</p><p style="padding-top: 7pt;padding-left: 107pt;text-indent: 0pt;text-align: left;">This primer was originally developed by Computer Possibilities, a company committed to making Al technology available. Primary development and writing was done by</p><p style="padding-left: 107pt;text-indent: 0pt;text-align: left;">Cynthia Cosic, with technical writing support provided by Sam Zordich. It has been re- done by Venue staff to reflect changes in the environment since the original publication.</p><p style="padding-top: 7pt;padding-left: 107pt;text-indent: 0pt;text-align: left;">At Xerox Artificial Intelligence Systems, John Vittal managed and directed the project. Substantial assistance was provided by many members of the AlS staff who provided both editorial and systems support.</p><p style="text-indent: 0pt;text-align: left;"><br/></p><p style="text-indent: 0pt;text-align: left;"><br/></p><p style="padding-left: 35pt;text-indent: 0pt;line-height: 1pt;text-align: left;"><span><img width="665" height="1" alt="image" src="Image_015.png"/></span></p><p class="s6" style="padding-left: 35pt;text-indent: 0pt;text-align: left;">Medley for the Novice, Release 2.0</p><p class="s6" style="padding-top: 2pt;text-indent: 0pt;text-align: right;">vii</p><p class="s7" style="padding-top: 3pt;padding-left: 35pt;text-indent: 0pt;text-align: left;">PREFACE                                                                                                                                                                    </p><p style="text-indent: 0pt;text-align: left;"><br/></p><p style="text-indent: 0pt;text-align: left;"><br/></p><p style="padding-left: 209pt;text-indent: 0pt;text-align: left;">[This page intentionally left blank]</p><p style="text-indent: 0pt;text-align: left;"><br/></p><p style="text-indent: 0pt;text-align: left;"><br/></p><p style="padding-left: 35pt;text-indent: 0pt;line-height: 1pt;text-align: left;"><span><img width="665" height="1" alt="image" src="Image_016.png"/></span></p><p class="s8" style="padding-left: 35pt;text-indent: 0pt;text-align: left;">viii <span class="s6">Medley for the Novice, Release 2.0</span></p></li><li><h1 style="padding-top: 3pt;padding-left: 60pt;text-indent: -25pt;text-align: left;"><a name="bookmark3">TYPING SHORTCUTS</a></h1></li></ol><p style="padding-left: 35pt;text-indent: 0pt;line-height: 6pt;text-align: left;"><span><img width="640" height="8" alt="image" src="Image_017.png"/></span></p><p style="text-indent: 0pt;text-align: left;"><br/></p><p style="padding-left: 107pt;text-indent: 0pt;text-align: left;">Once you have logged in to Medley, you are in Lisp. The functions you type into the</p><p style="padding-left: 107pt;text-indent: 0pt;text-align: left;">Executive Window will now execute, that is, perform the designated task. Lisp is case-</p><p style="padding-left: 107pt;text-indent: 0pt;text-align: left;">sensitive; it often matters whether text is typed in upper- or lowercase letters. Use the Shift-Lock key on your keyboard to ensure that everything typed is in capital letters.</p><p style="padding-top: 7pt;padding-left: 107pt;text-indent: 0pt;text-align: left;">You must type all Lisp functions in parentheses. The Lisp interpreter will read from the left parenthesis to the closing right parenthesis to determine both the function you want to execute and the arguments to that function. Executing this function is called</p><p style="padding-left: 107pt;text-indent: 0pt;text-align: justify;">&quot;evaluation.&quot; When the function is evaluated, it returns a value, which is then printed in the Executive Window. This entire process is called the read-eval-print loop, and is how most Lisp interpreters, including the one for Lisp, run.</p><p style="padding-top: 7pt;padding-left: 107pt;text-indent: 0pt;text-align: left;">The prompt in is a number followed by a left-pointing arrow (see Figure 2.3). This number is the function’s position on the History List—a list that stores your</p><p style="padding-left: 107pt;text-indent: 0pt;line-height: 107%;text-align: left;">interactions with the Lisp interpreter. Type the function <span class="s3">(PLUS 3 4) </span>, and notice the History List assigns to the function (the number immediately to the left of the arrow).</p><p style="padding-left: 107pt;text-indent: 0pt;text-align: left;">Lisp reads in the function and its arguments, evaluates the function, and then prints the number 7.</p><p style="text-indent: 0pt;text-align: left;"><br/></p><h2 style="padding-left: 35pt;text-indent: 0pt;text-align: left;"><a name="a1">Programmer’s Assistant                                                                                  </a></h2><p style="padding-top: 9pt;padding-left: 107pt;text-indent: 0pt;text-align: justify;">In addition to this read-eval-print loop, there is also a &quot;programmer’s assistant.&quot; It is the programmer’s assistant that prints the number as part of the prompt in the</p><p style="padding-left: 107pt;text-indent: 0pt;text-align: left;">executive window, and uses these numbers to reference the function calls typed after them.</p><p style="padding-top: 7pt;padding-left: 107pt;text-indent: 0pt;text-align: left;">When you issue commands to the programmer’s assistant, you will not use parentheses as you do with ordinary functiion calls. You simply type the command, and some</p><p style="padding-left: 107pt;text-indent: 0pt;text-align: left;">specification that indicates which item on the history list the command refers to. Some programmer’s assistant commands are <span class="s3">FIX</span>, <span class="s3">REDO</span>, and <span class="s3">UNDO</span>. They are explained in</p><p style="padding-left: 107pt;text-indent: 0pt;text-align: left;">detail below.</p><p style="padding-top: 7pt;padding-left: 107pt;text-indent: 0pt;text-align: justify;">Programmer’s assistant commands are useful only at the Lisp top level, that is, when you are typing into the Executive Window. They do not work in user-defined functions.</p><p style="padding-top: 7pt;padding-left: 107pt;text-indent: 0pt;text-align: left;">As an example use of the programmer’s assistant, use <span class="s3">REDO </span>to redo your function call</p><p style="padding-left: 107pt;text-indent: 0pt;text-align: left;"><span class="s3">(PLUS 3 4)</span>. Type <span class="s9">REDO </span>at the prompt (programmer’s assistant commands can be</p><p style="padding-left: 106pt;text-indent: 0pt;text-align: left;">typed in either upper- or lowercase) , then specify the previous expression in one of the following ways:</p><ul id="l2"><li><p style="padding-top: 7pt;padding-left: 117pt;text-indent: -9pt;text-align: left;">When you originally typed in the function you now want to refer to, there was a</p><p style="padding-left: 119pt;text-indent: 0pt;text-align: left;">History List number to the left of the arrow in the prompt. Type this number after the programmer’s assistant command. This is the method illustrated in Figure 2-1.</p><p style="text-indent: 0pt;text-align: left;"><br/></p><p style="padding-left: 224pt;text-indent: 0pt;text-align: left;"><span><img width="228" height="116" alt="image" src="Image_018.gif"/></span></p><p style="padding-top: 7pt;padding-left: 137pt;text-indent: 0pt;text-align: left;">Figure 2-1. Using a Programmer’s Assistant Command to <span class="s3">REDO </span>a Function</p><p style="text-indent: 0pt;text-align: left;"><br/></p></li><li><p style="padding-top: 4pt;padding-left: 119pt;text-indent: -10pt;text-align: justify;">A negative number will specify the function call typed in that number of prompts dago. In this example, you would type in -1, the position immediately before the current position. This is shown in Figure 2-2.</p><p style="text-indent: 0pt;text-align: left;"><br/></p><p style="padding-left: 225pt;text-indent: 0pt;text-align: left;"><span><img width="228" height="116" alt="image" src="Image_019.gif"/></span></p><p style="padding-top: 8pt;padding-left: 119pt;text-indent: 0pt;text-align: left;">Figure 2-2. Using a Negative Number after the Programmer’s Assistant Command</p></li><li><p style="padding-top: 7pt;padding-left: 119pt;text-indent: -10pt;text-align: left;">You can also specify the function for the programmer’s assistant with one of the items that was in that function call. The programmer’s assistant will search</p><p style="padding-left: 119pt;text-indent: 0pt;text-align: left;">backwards in the History List, and use the first function it finds that includes that</p><p style="padding-left: 119pt;text-indent: 0pt;text-align: left;">item. For example, type <span class="s9">REDO PLUS </span>to have the functiion <span class="s3">(PLUS 3 4) </span>reevaluated.</p></li><li><p style="padding-top: 7pt;padding-left: 119pt;text-indent: -11pt;text-align: justify;">If you type a programmer’s assistant cmmand without specifying a function (i.e., simply typing the command, following by a Return), the programmer’s assistant executes the command using the function entered at the previous prompt.</p></li></ul><p style="padding-top: 7pt;padding-left: 107pt;text-indent: 0pt;text-align: left;">Figure 2-3 shows a few more examples of how to use the programmer’s assistant.</p><p style="text-indent: 0pt;text-align: left;"><br/></p><p style="padding-left: 197pt;text-indent: 0pt;text-align: left;"><span><img width="305" height="286" alt="image" src="Image_020.gif"/></span></p><p style="text-indent: 0pt;text-align: left;"><br/></p><p style="padding-left: 168pt;text-indent: 0pt;text-align: left;">Figure 2-3. Some Applications of the Programmer’s Assistant</p><p style="text-indent: 0pt;text-align: left;"><br/></p><h2 style="padding-left: 35pt;text-indent: 0pt;text-align: left;"><a name="a2">If You Make a Mistake                                                                                      </a></h2><p style="padding-top: 9pt;padding-left: 107pt;text-indent: 0pt;text-align: left;">Editing in the Executive Window is explained in detail in Chapter 7. In the following section, only a few of the most useful commands are repeated.</p><p style="padding-top: 7pt;padding-left: 107pt;text-indent: 0pt;text-align: left;">To move the caret to a new place in the command being typed, point the mouse cursor at the appropriate position. Then press the left mouse button.</p><p style="text-indent: 0pt;text-align: left;"><br/></p><p style="padding-top: 4pt;padding-left: 107pt;text-indent: 0pt;text-align: left;">To move the caret back to the end of the command being typed, press Control-X (hold the Control key down, and type <b>X</b>).</p><p style="text-indent: 0pt;text-align: left;"><br/></p><p style="padding-top: 4pt;padding-left: 107pt;text-indent: 0pt;text-align: left;">To delete:</p><p style="padding-top: 7pt;padding-left: 131pt;text-indent: 0pt;text-align: left;">Character behind the caret Press the Backspace key</p><p style="padding-top: 7pt;padding-left: 131pt;text-indent: 0pt;text-align: left;">Word behind the caret Press Control-W (hold the Control key down and type</p><p style="padding-left: 263pt;text-indent: 0pt;text-align: left;">W)</p><p style="padding-top: 7pt;padding-left: 131pt;text-indent: 0pt;text-align: left;">Any part of the command Move the caret to the appropriate place in the</p><p style="padding-left: 263pt;text-indent: 0pt;text-align: left;">command. Hold the right mouse button down and move the the mouse cursor over the text. All of the</p><p style="padding-left: 263pt;text-indent: 0pt;text-align: left;">blackened text between the caret and mouse cursor is deleted when you release the right mouse button.</p><p style="padding-top: 7pt;padding-left: 131pt;text-indent: 0pt;text-align: left;">Entire command Press Control-U (hold the Control key down and type</p><p class="s10" style="padding-left: 263pt;text-indent: 0pt;text-align: left;">U<span class="p">)</span></p><p style="padding-top: 7pt;padding-left: 107pt;text-indent: 0pt;text-align: left;">Deletions can be undone. J ust press the <span class="s3">UNDO </span>key.</p><p style="padding-top: 7pt;padding-left: 107pt;text-indent: 0pt;text-align: left;">To add more text to the line, move the carent to the appropriate position and start to type. Whatever you type will appear at the caret.</p><p style="text-indent: 0pt;text-align: left;"><br/></p><p style="text-indent: 0pt;text-align: left;"><br/></p><p style="padding-left: 209pt;text-indent: 0pt;text-align: left;">[This page intentionally left blank]</p><p style="text-indent: 0pt;text-align: left;"><span><img width="640" height="8" alt="image" src="Image_021.png"/></span></p><h1 style="padding-top: 3pt;padding-left: 35pt;text-indent: 0pt;text-align: left;"><a name="bookmark4">TABLE of CONTENTS</a></h1><p class="s5" style="padding-top: 39pt;padding-left: 35pt;text-indent: 0pt;text-align: left;">Preface <span class="s6">vii</span></p><ol id="l3"><li><p class="s5" style="padding-top: 25pt;padding-left: 54pt;text-indent: -19pt;text-align: left;">Brief Glossary <span class="s6">1-1</span></p></li><li><p class="s5" style="padding-top: 8pt;padding-left: 50pt;text-indent: -15pt;text-align: left;">Typing Shortcuts</p><p class="s6" style="padding-top: 5pt;padding-left: 83pt;text-indent: 0pt;text-align: left;">Programmer’s Assistant 2-1</p><p class="s6" style="padding-top: 5pt;padding-left: 83pt;text-indent: 0pt;text-align: left;">If You Make a Mistake 2-2</p></li><li><p class="s5" style="padding-top: 8pt;padding-left: 50pt;text-indent: -15pt;text-align: left;">Using Menus</p><p class="s6" style="padding-top: 5pt;padding-left: 83pt;text-indent: 0pt;text-align: left;">Making a Selection from a Menu 3-1</p><p class="s6" style="padding-top: 5pt;padding-left: 83pt;text-indent: 0pt;text-align: left;">Explanations of Menu Items 3-2</p><p class="s6" style="padding-top: 5pt;padding-left: 83pt;text-indent: 0pt;text-align: left;">Submenus 3-2</p><p class="s6" style="padding-top: 5pt;padding-left: 83pt;text-indent: 0pt;text-align: left;">Summary 3-3</p></li><li><p class="s5" style="padding-top: 8pt;padding-left: 50pt;text-indent: -15pt;text-align: left;">How to Use Files</p><p class="s6" style="padding-top: 5pt;padding-left: 83pt;text-indent: 0pt;text-align: left;">Types of Files 4-1</p><p class="s6" style="padding-top: 5pt;padding-left: 83pt;text-indent: 0pt;text-align: left;">Directories 4-1</p><p class="s6" style="padding-top: 5pt;padding-left: 83pt;text-indent: 0pt;text-align: left;">Directory Options 4-2</p><p class="s6" style="padding-top: 5pt;padding-left: 83pt;text-indent: 0pt;text-align: left;">Subdirectories 4-2</p><p class="s6" style="padding-top: 5pt;padding-left: 83pt;text-indent: 0pt;text-align: left;">To See What Files Are Loaded 4-3</p><p class="s6" style="padding-top: 5pt;padding-left: 83pt;text-indent: 0pt;text-align: left;">Simple Commands for Manipulating Files 4-3</p><p class="s6" style="padding-top: 5pt;padding-left: 83pt;text-indent: 0pt;text-align: left;">Connecting to a Directory 4-3</p><p class="s6" style="padding-top: 5pt;padding-left: 83pt;text-indent: 0pt;text-align: left;">File Version Numbers 4-4</p></li><li><p class="s5" style="padding-top: 8pt;padding-left: 50pt;text-indent: -15pt;text-align: left;">FileBrowser</p><p class="s6" style="padding-top: 5pt;padding-left: 83pt;text-indent: 0pt;text-align: left;">Calling the FileBrowser 5-1</p><p class="s6" style="padding-top: 5pt;padding-left: 83pt;text-indent: 0pt;text-align: left;">FileBrowser Commands 5-3</p></li><li><p class="s5" style="padding-top: 8pt;padding-left: 50pt;text-indent: -15pt;text-align: left;">Those Wondertul Windows!</p><p class="s6" style="padding-top: 5pt;padding-left: 83pt;text-indent: 0pt;text-align: left;">Windows Provided by Medley 6-1</p><p class="s6" style="padding-top: 5pt;padding-left: 83pt;text-indent: 0pt;text-align: left;">Creating a Window 6-2</p><p class="s6" style="padding-top: 5pt;padding-left: 83pt;text-indent: 0pt;text-align: left;">Right Button Default Window Menu 6-2</p><p class="s6" style="padding-top: 5pt;padding-left: 83pt;text-indent: 0pt;text-align: left;">Explanation of Each Menu Item 6-3</p><p class="s6" style="padding-top: 5pt;padding-left: 83pt;text-indent: 0pt;text-align: left;">Scrollable Windows 6-4</p><p class="s6" style="padding-top: 5pt;padding-left: 83pt;text-indent: 0pt;text-align: left;">Other Window Functions 6-5</p><p class="s6" style="padding-top: 5pt;padding-left: 107pt;text-indent: 0pt;text-align: left;">PROMPTPRlNT 6-5</p><p class="s6" style="padding-top: 5pt;padding-left: 107pt;text-indent: 0pt;text-align: left;">WHlCHW 6-6</p></li><li><p class="s5" style="padding-top: 19pt;padding-left: 50pt;text-indent: -15pt;text-align: left;">Editing and Saving</p><p class="s6" style="padding-top: 5pt;padding-left: 83pt;text-indent: 0pt;text-align: left;">Defining Functions 7-1</p><p class="s6" style="padding-top: 5pt;padding-left: 83pt;text-indent: 0pt;text-align: left;">Simple Editing in the Executive Window 7-2</p><p class="s6" style="padding-top: 5pt;padding-left: 83pt;text-indent: 0pt;text-align: left;">Using the List Structure Editor 7-3</p><p class="s6" style="padding-top: 5pt;padding-left: 83pt;text-indent: 0pt;text-align: left;">Commenting Functions 7-4</p><p class="s6" style="padding-top: 5pt;padding-left: 83pt;text-indent: 0pt;text-align: left;">File Functions and Variables: How to See and Save Them 7-5</p><p class="s6" style="padding-top: 5pt;padding-left: 83pt;text-indent: 0pt;text-align: left;">File Variables 7-5</p><p class="s6" style="padding-top: 5pt;padding-left: 83pt;text-indent: 0pt;text-align: left;">Saving Interlisp-D on Files 7-5</p></li><li><p class="s5" style="padding-top: 8pt;padding-left: 50pt;text-indent: -15pt;text-align: left;">Your Init File</p><p class="s6" style="padding-top: 5pt;padding-left: 83pt;text-indent: 0pt;text-align: left;">Using the USERGREETFILES Variable 8-1</p><p class="s6" style="padding-top: 5pt;padding-left: 83pt;text-indent: 0pt;text-align: left;">Making an Init File 8-1</p></li><li><p class="s5" style="padding-top: 8pt;padding-left: 50pt;text-indent: -15pt;text-align: left;">Medley Forgiveness: DWIM <span class="s6">9-1</span></p></li><li><p class="s5" style="padding-top: 8pt;padding-left: 58pt;text-indent: -23pt;text-align: left;">Break Package</p><p class="s6" style="padding-top: 5pt;padding-left: 83pt;text-indent: 0pt;text-align: left;">Break Windows 10-1</p><p class="s6" style="padding-top: 5pt;padding-left: 83pt;text-indent: 0pt;text-align: left;">Break Package Examples 10-1</p><p class="s6" style="padding-top: 5pt;padding-left: 83pt;text-indent: 0pt;text-align: left;">Ways to Stop Execution from the Keyboard (Breaking Lisp) 10-3</p><p class="s6" style="padding-top: 5pt;padding-left: 83pt;text-indent: 0pt;text-align: left;">Break Menu 10-3</p><p class="s6" style="padding-top: 5pt;padding-left: 83pt;text-indent: 0pt;text-align: left;">Returning to Top Level 10-4</p></li><li><p class="s5" style="padding-top: 8pt;padding-left: 58pt;text-indent: -23pt;text-align: left;">WhatTo Do lf <span class="s6">11-1</span></p></li><li><p class="s5" style="padding-top: 8pt;padding-left: 58pt;text-indent: -23pt;text-align: left;">Window and Regions</p><p class="s6" style="padding-top: 5pt;padding-left: 83pt;text-indent: 0pt;text-align: left;">Windows 12-1</p><p class="s6" style="padding-top: 5pt;padding-left: 107pt;text-indent: 0pt;text-align: left;">CREATEW 12-1</p><p class="s6" style="padding-top: 5pt;padding-left: 107pt;text-indent: 0pt;text-align: left;">WlNDOWPROP 12-2</p><p class="s6" style="padding-top: 5pt;padding-left: 107pt;text-indent: 0pt;text-align: left;">Getting Windows to Do Things 12-3</p><p class="s6" style="padding-top: 5pt;padding-left: 107pt;text-indent: 0pt;text-align: left;">BUTTONEVENTFN 12-5</p><p class="s6" style="padding-top: 5pt;padding-left: 107pt;text-indent: 0pt;text-align: left;">Looking at a Window’s Properties 12-5</p><p class="s6" style="padding-top: 5pt;padding-left: 83pt;text-indent: 0pt;text-align: left;">Regions 12-5</p></li><li><p class="s5" style="padding-top: 8pt;padding-left: 58pt;text-indent: -23pt;text-align: left;">What Are Menus?</p><p class="s6" style="padding-top: 5pt;padding-left: 83pt;text-indent: 0pt;text-align: left;">Displaying Menus 13-1</p><p class="s6" style="padding-top: 5pt;padding-left: 83pt;text-indent: 0pt;text-align: left;">Getting Menus to Do Stuff 13-2</p><p class="s6" style="padding-top: 5pt;padding-left: 83pt;text-indent: 0pt;text-align: left;">WHENHELDFN and WHENSELECTEDFN Fields of a Menu 13-3</p><p class="s6" style="padding-top: 5pt;padding-left: 83pt;text-indent: 0pt;text-align: left;">Looking at a Menu’s Fields 13-5</p></li><li><p class="s5" style="padding-top: 8pt;padding-left: 58pt;text-indent: -23pt;text-align: left;">Bitmaps <span class="s6">14-1</span></p></li><li><p class="s5" style="padding-top: 18pt;padding-left: 58pt;text-indent: -23pt;text-align: left;">Displaystreams</p><p class="s6" style="padding-top: 5pt;padding-left: 83pt;text-indent: 0pt;text-align: left;">Drawing on a Displaystream 15-1</p><p class="s6" style="padding-top: 5pt;padding-left: 107pt;text-indent: 0pt;text-align: left;">DRAWUNE 15-1</p><p class="s6" style="padding-top: 5pt;padding-left: 107pt;text-indent: 0pt;text-align: left;">DRAWTO 15-2</p><p class="s6" style="padding-top: 5pt;padding-left: 107pt;text-indent: 0pt;text-align: left;">DRAWCIRCLE 15-3</p><p class="s6" style="padding-top: 5pt;padding-left: 107pt;text-indent: 0pt;text-align: left;">FILLCIRCLE 15-1</p><p class="s6" style="padding-top: 5pt;padding-left: 83pt;text-indent: 0pt;text-align: left;">Locating and Changing Your Position in a Displaystream 15-4</p><p class="s6" style="padding-top: 5pt;padding-left: 107pt;text-indent: 0pt;text-align: left;">DSPXP0SITION 15-5</p><p class="s6" style="padding-top: 5pt;padding-left: 107pt;text-indent: 0pt;text-align: left;">DSPYPOSlTION 15-5</p><p class="s6" style="padding-top: 5pt;padding-left: 107pt;text-indent: 0pt;text-align: left;">MOVETO 15-5</p></li><li><p class="s5" style="padding-top: 8pt;padding-left: 58pt;text-indent: -23pt;text-align: left;">Fonts</p><p class="s6" style="padding-top: 5pt;padding-left: 83pt;text-indent: 0pt;text-align: left;">What Makes Up a Font 16-1</p><p class="s6" style="padding-top: 5pt;padding-left: 83pt;text-indent: 0pt;text-align: left;">Fontdescriptors and FONTCREATE 16-2</p><p class="s6" style="padding-top: 5pt;padding-left: 83pt;text-indent: 0pt;text-align: left;">Display Fonts 16-3</p><p class="s6" style="padding-top: 5pt;padding-left: 83pt;text-indent: 0pt;text-align: left;">InterPress Fonts 16-3</p><p class="s6" style="padding-top: 5pt;padding-left: 83pt;text-indent: 0pt;text-align: left;">Functions for Using Fonts 16-4</p><p class="s6" style="padding-top: 5pt;padding-left: 107pt;text-indent: 0pt;text-align: left;">FONTPROP - Looking at Font Properties 16-4</p><p class="s6" style="padding-top: 5pt;padding-left: 107pt;text-indent: 0pt;text-align: left;">STRINGWlDTH 16-5</p><p class="s6" style="padding-top: 5pt;padding-left: 107pt;text-indent: 0pt;text-align: left;">DSPFONT- Changing the Font in One Window 16-5</p><p class="s6" style="padding-top: 5pt;padding-left: 83pt;text-indent: 0pt;text-align: left;">Personalizing Your Font Profile 16-6</p></li><li><p class="s5" style="padding-top: 8pt;padding-left: 58pt;text-indent: -23pt;text-align: left;">The Inspector</p><p class="s6" style="padding-top: 5pt;padding-left: 83pt;text-indent: 0pt;text-align: left;">Calling the Inspector 17-1</p><p class="s6" style="padding-top: 5pt;padding-left: 83pt;text-indent: 0pt;text-align: left;">Using the Inspector 17-2</p><p class="s6" style="padding-top: 5pt;padding-left: 83pt;text-indent: 0pt;text-align: left;">Inspector Example 17-2</p></li><li><p class="s5" style="padding-top: 8pt;padding-left: 58pt;text-indent: -23pt;text-align: left;">Masterscope</p><p class="s6" style="padding-top: 5pt;padding-left: 83pt;text-indent: 0pt;text-align: left;">SHOW DATA Command and GRAPHER 18-2</p></li><li><p class="s5" style="padding-top: 8pt;padding-left: 58pt;text-indent: -23pt;text-align: left;">Where Does All the Time Go? SPY</p><p class="s6" style="padding-top: 5pt;padding-left: 83pt;text-indent: 0pt;text-align: left;">How to Use Spy with the SPY Window 19-1</p><p class="s6" style="padding-top: 5pt;padding-left: 83pt;text-indent: 0pt;text-align: left;">How to Use SPY from the Lisp Top Level 19-2</p><p class="s6" style="padding-top: 5pt;padding-left: 83pt;text-indent: 0pt;text-align: left;">Interpreting SPY’s Results 19-2</p></li><li><p class="s5" style="padding-top: 8pt;padding-left: 62pt;text-indent: -27pt;text-align: left;">Free Menus</p><p class="s6" style="padding-top: 5pt;padding-left: 83pt;text-indent: 0pt;text-align: left;">Free Menu Example 20-1</p><p class="s6" style="padding-top: 5pt;padding-left: 83pt;text-indent: 0pt;text-align: left;">Parts of a Free Menu Item 20-2</p><p class="s6" style="padding-top: 5pt;padding-left: 83pt;text-indent: 0pt;text-align: left;">Types of Free Menu Items 20-3</p></li><li><p class="s5" style="padding-top: 19pt;padding-left: 62pt;text-indent: -27pt;text-align: left;">The Grapher</p><p class="s6" style="padding-top: 5pt;padding-left: 83pt;text-indent: 0pt;text-align: left;">Say it with Graphs 21-1</p><p class="s6" style="padding-top: 5pt;padding-left: 107pt;text-indent: 0pt;text-align: left;">Add a Node 21-2</p><p class="s6" style="padding-top: 5pt;padding-left: 107pt;text-indent: 0pt;text-align: left;">Add a Link 21-2</p><p class="s6" style="padding-top: 5pt;padding-left: 107pt;text-indent: 0pt;text-align: left;">Delete a Link 21-2</p><p class="s6" style="padding-top: 5pt;padding-left: 107pt;text-indent: 0pt;text-align: left;">Delete a Node 21-2</p><p class="s6" style="padding-top: 5pt;padding-left: 107pt;text-indent: 0pt;text-align: left;">Move a Node 21-2</p><p class="s6" style="padding-top: 5pt;padding-left: 83pt;text-indent: 0pt;text-align: left;">Making a Graph from a List 21-2</p><p class="s6" style="padding-top: 5pt;padding-left: 83pt;text-indent: 0pt;text-align: left;">Incorporating Grapher into Your Program 21-2</p><p class="s6" style="padding-top: 5pt;padding-left: 83pt;text-indent: 0pt;text-align: left;">More of Grapher 21-2</p></li><li><p class="s5" style="padding-top: 8pt;padding-left: 62pt;text-indent: -27pt;text-align: left;">Resource Management</p><p class="s6" style="padding-top: 5pt;padding-left: 83pt;text-indent: 0pt;text-align: left;">Naming Variables and Records 22-1</p><p class="s6" style="padding-top: 5pt;padding-left: 83pt;text-indent: 0pt;text-align: left;">Some Space and Time Considerations 22-2</p><p class="s6" style="padding-top: 5pt;padding-left: 107pt;text-indent: 0pt;text-align: left;">Global Variables 22-3</p><p class="s6" style="padding-top: 5pt;padding-left: 107pt;text-indent: 0pt;text-align: left;">Circular Lists 22-3</p><p class="s6" style="padding-top: 5pt;padding-left: 107pt;text-indent: 0pt;text-align: left;">When You Run Out of Space 22-4</p></li><li><p class="s5" style="padding-top: 8pt;padding-left: 58pt;text-indent: -23pt;text-align: left;">Simple Interactions with the Cursor, a Bitmap, and a Window</p><p class="s6" style="padding-top: 5pt;padding-left: 83pt;text-indent: 0pt;text-align: left;">GETMOUSESTATE Example Function 23-1</p><p class="s6" style="padding-top: 5pt;padding-left: 83pt;text-indent: 0pt;text-align: left;">Advising GETMOUSESTATE 23-2</p><p class="s6" style="padding-top: 5pt;padding-left: 83pt;text-indent: 0pt;text-align: left;">Changing the Cursor 23-2</p><p class="s6" style="padding-top: 5pt;padding-left: 83pt;text-indent: 0pt;text-align: left;">Functions for Tracing the Cursor 23-3</p><p class="s6" style="padding-top: 5pt;padding-left: 83pt;text-indent: 0pt;text-align: left;">Running the Functions 23-6</p></li><li><p class="s5" style="padding-top: 8pt;padding-left: 58pt;text-indent: -23pt;text-align: left;">Glossary of Global System Variables</p><p class="s6" style="padding-top: 5pt;padding-left: 83pt;text-indent: 0pt;text-align: left;">Directories 24-1</p><p class="s6" style="padding-top: 5pt;padding-left: 83pt;text-indent: 0pt;text-align: left;">Flags 24-2</p><p class="s6" style="padding-top: 5pt;padding-left: 83pt;text-indent: 0pt;text-align: left;">History Lists 24-3</p><p class="s6" style="padding-top: 5pt;padding-left: 83pt;text-indent: 0pt;text-align: left;">System Menus 24-3</p><p class="s6" style="padding-top: 5pt;padding-left: 83pt;text-indent: 0pt;text-align: left;">Windows 24-4</p><p class="s6" style="padding-top: 5pt;padding-left: 83pt;text-indent: 0pt;text-align: left;">Miscellaneous 24-4</p></li><li><p class="s5" style="padding-top: 8pt;padding-left: 58pt;text-indent: -23pt;text-align: left;">Other Useful References <span class="s6">25.1</span></p></li></ol><p class="s5" style="padding-top: 24pt;padding-left: 35pt;text-indent: 0pt;text-align: left;">Index<span class="s6">.............................................................................................................................................. INDEX-1</span></p><p style="text-indent: 0pt;text-align: left;"><br/></p><p class="s6" style="padding-left: 61pt;text-indent: 0pt;text-align: center;">[This page intentionally left blank]</p><ol id="l4"><li><h1 style="padding-top: 3pt;padding-left: 60pt;text-indent: -25pt;text-align: left;"><a name="bookmark5">USING MENUS</a></h1><p style="padding-left: 35pt;text-indent: 0pt;line-height: 6pt;text-align: left;"><span><img width="640" height="8" alt="image" src="Image_022.png"/></span></p><p style="text-indent: 0pt;text-align: left;"><br/></p><p style="padding-left: 107pt;text-indent: 0pt;text-align: left;">The purpose of this chapter is to show you how to use menus. Many things can be done more easily using menus, and there are many different menus provided in the Medley</p><p style="padding-left: 107pt;text-indent: 0pt;text-align: left;">environment. Some are &quot;pop-up&quot; menus that are only available until a selection is made, then disappear until they are needed again. An example of one of these is the Background Menu that appears when the mouse is not in any window and the right</p><p style="padding-left: 107pt;text-indent: 0pt;text-align: left;">mouse button is pressed. A background menu is shown in Figure 3-1. Your background menu may have different items on it.</p><p style="text-indent: 0pt;text-align: left;"><br/></p><p style="padding-left: 261pt;text-indent: 0pt;text-align: left;"><span><img width="133" height="97" alt="image" src="Image_023.gif"/></span></p><p style="padding-top: 7pt;padding-left: 240pt;text-indent: 0pt;text-align: left;">Figure 3-1. Background Menu</p><p style="padding-top: 7pt;padding-left: 107pt;text-indent: 0pt;text-align: left;">Another common pop-up menu is the right button default window menu. This menu is explained more in Chapter 6.</p><p style="padding-top: 7pt;padding-left: 107pt;text-indent: 0pt;text-align: justify;">Other menus are more permanent, such as the menu that is always available for use with the Filebrowser. This menu is shown in Figure 3-2., and the specifics of its use with the filebrowser are explained in Chapter 5.</p><p style="text-indent: 0pt;text-align: left;"><br/></p><p style="padding-left: 276pt;text-indent: 0pt;text-align: left;"><span><img width="92" height="161" alt="image" src="Image_024.gif"/></span></p><p style="padding-top: 8pt;padding-left: 241pt;text-indent: 0pt;text-align: left;">Figure 3-2. Filebrowser Menu</p><p style="text-indent: 0pt;text-align: left;"><br/></p><h2 style="padding-left: 35pt;text-indent: 0pt;text-align: left;"><a name="a3">Making a Selection from a Menu                                                                     </a></h2><p style="padding-top: 9pt;padding-left: 107pt;text-indent: 0pt;text-align: justify;">To make a selection from a menu, point with the mouse to the item you would like to select. If one of the mouse buttons is already pressed, the menu item should be</p><p style="padding-left: 107pt;text-indent: 0pt;text-align: justify;">highlighted in reverse video. If it is a permanent menu, you must press the left mouse button to highlight the item. When you release the button,m the item will be selected. Figure 3-3 shows a menu with the item &quot;Undo&quot; chosen.</p><p style="text-indent: 0pt;text-align: left;"><br/></p><p style="padding-left: 291pt;text-indent: 0pt;text-align: left;"><span><img width="52" height="51" alt="image" src="Image_025.gif"/></span></p><p style="padding-top: 7pt;padding-left: 111pt;text-indent: 0pt;text-align: center;">Figure 3-3.  Menu with  the Item &quot;Undo&quot; Chosen</p><p style="text-indent: 0pt;text-align: left;"><br/></p><h2 style="padding-left: 35pt;text-indent: 0pt;text-align: left;"><a name="a4">Explanation of Menu Items                                                                              </a></h2><p style="padding-top: 9pt;padding-left: 107pt;text-indent: 0pt;text-align: left;">Many menu items have explanations associated with the. If you are not sure what the consequences of choosing a particular menu iem will be, highlight the menu item but do not releast the left mouse button. If the menu item has an explanation associated with it, the explanation will be printed in the prompt window. Figure 3-4 shows the</p><p style="padding-left: 107pt;text-indent: 0pt;text-align: left;">explanation associated with the item &quot;Snap&quot; from the background menu.</p><p style="text-indent: 0pt;text-align: left;"><br/></p><p style="padding-left: 118pt;text-indent: 0pt;text-align: left;"><span><img width="513" height="83" alt="image" src="Image_026.gif"/></span></p><p style="text-indent: 0pt;text-align: left;"><br/></p><p style="padding-left: 260pt;text-indent: 0pt;text-align: left;"><span><img width="134" height="184" alt="image" src="Image_027.gif"/></span></p><p style="text-indent: 0pt;text-align: left;"><br/></p><p style="padding-left: 111pt;text-indent: 0pt;text-align: center;">Figure 3-4.   Explanation Associated with Selected Menu Item</p><p style="text-indent: 0pt;text-align: left;"><br/></p><h2 style="padding-left: 35pt;text-indent: 0pt;text-align: left;"><a name="a5">Submenus                                                                                                         </a></h2><p style="padding-top: 6pt;padding-left: 107pt;text-indent: 0pt;text-align: left;">Some menu items have submenus associated with them. This means that, for these items, you can make even more precise choices if you would like to.</p><p style="padding-top: 7pt;padding-left: 107pt;text-indent: 0pt;text-align: left;">A submenu can also be foun d as described below.</p><p style="padding-top: 7pt;padding-left: 107pt;text-indent: 0pt;text-align: left;">As shown in Figure 3-5, a submenu can be indicated by a gray arrow to the right of the menu item. To see the submenu, highlight the menu item and move the mose to the</p><p style="padding-left: 107pt;text-indent: 0pt;text-align: left;">right to follow the arrow. Choosing an item from a submenu is done the same way you make a choice from the menu. Any submenus that might be associated with the items in the submenu are indicated in the same way as the submenus associated with the</p><p style="padding-left: 107pt;text-indent: 0pt;text-align: left;">items in the menu.</p><p class="s6" style="padding-top: 3pt;text-indent: 0pt;text-align: right;">3. USING MENUS</p><p style="padding-left: 35pt;text-indent: 0pt;line-height: 1pt;text-align: left;"><span><img width="665" height="1" alt="image" src="Image_028.png"/></span></p><p style="text-indent: 0pt;text-align: left;"><br/></p><p style="padding-left: 254pt;text-indent: 0pt;text-align: left;"><span><img width="149" height="162" alt="image" src="Image_029.gif"/></span></p><p style="text-indent: 0pt;text-align: left;"><br/></p><p style="padding-top: 4pt;padding-left: 183pt;text-indent: 0pt;text-align: left;">Figure 3-5. Edit Submenu Displayed with Right Arrow</p><p style="text-indent: 0pt;text-align: left;"><br/></p><h2 style="padding-left: 35pt;text-indent: 0pt;text-align: left;"><a name="a6">Summary                                                                                                           </a></h2><p style="padding-top: 6pt;padding-left: 107pt;text-indent: 0pt;text-align: left;">In summary, here are a few rules of thumb to remember about the interactions of the mouse and system menus:</p><ul id="l5"><li><p style="padding-top: 7pt;padding-left: 118pt;text-indent: -10pt;text-align: left;">Press the left mouse button to select a menu item</p></li><li><p style="padding-top: 7pt;padding-left: 118pt;text-indent: -10pt;text-align: left;">Press the middle mouse button to get more options on a submenu</p></li><li><p style="padding-top: 7pt;padding-left: 119pt;text-indent: -11pt;text-align: left;">Press the right mouse button to see the default right button window menu, and the background menu</p><p style="text-indent: 0pt;text-align: left;"><br/></p><p style="text-indent: 0pt;text-align: left;"><br/></p><p style="padding-left: 209pt;text-indent: 0pt;text-align: left;">[This page intentionally left blank]</p></li></ul></li><li><h1 style="padding-top: 3pt;padding-left: 60pt;text-indent: -25pt;text-align: left;"><a name="bookmark6">HOW TO USE FILES</a></h1><p style="padding-left: 35pt;text-indent: 0pt;line-height: 6pt;text-align: left;"><span><img width="640" height="8" alt="image" src="Image_030.png"/></span></p><p style="text-indent: 0pt;text-align: left;"><br/></p><h2 style="padding-left: 35pt;text-indent: 0pt;text-align: left;"><a name="a7">Types of Files                                                                                                   </a></h2><p style="padding-top: 9pt;padding-left: 107pt;text-indent: 0pt;text-align: left;">A program file, or Lisp file, contains a series of expressions that can be read and</p><p style="padding-left: 107pt;text-indent: 0pt;text-align: left;">evaluated by the Lisp interpreter. These expressions can include function or macro</p><p style="padding-left: 107pt;text-indent: 0pt;text-align: left;">definitions, variables and their values, properties of variables, and so on. How to save Interlisp-D expressions on these files is explained in Chapter 7. Loading a file is</p><p style="padding-left: 107pt;text-indent: 0pt;text-align: left;">explained in the Simple Commands for Manipulating Files section below.</p><p style="padding-top: 7pt;padding-left: 107pt;text-indent: 0pt;text-align: left;">Not all files, however, have Lisp expressions stored on them. For example, TEdit files store text; sketches are stored on files made with the package Sketch , or can be</p><p style="padding-left: 107pt;text-indent: 0pt;text-align: left;">incorporated into TEdit files. These files are not loaded directly into the environment, but are accessed with the package used to create them, such as TEdit or Sketch.</p><p style="padding-top: 7pt;padding-left: 107pt;text-indent: 0pt;text-align: left;">When you name a file, there are conventions that you should follow. These conventions allow you to tell the type of file by the extension to its name.</p><p class="s10" style="padding-top: 7pt;padding-left: 107pt;text-indent: 0pt;text-align: left;"><a name="a8">If a file contains: Then:</a></p><p style="padding-top: 7pt;padding-left: 107pt;text-indent: 0pt;text-align: left;">Lisp expressions It should not have an extension or have the extension</p><p class="s3" style="padding-left: 251pt;text-indent: 0pt;line-height: 107%;text-align: left;">.LISP<span class="p">. For example, a file called </span>MYCODE <span class="p">should contain Lisp expressions.</span></p><p style="padding-top: 6pt;padding-left: 107pt;text-indent: 0pt;text-align: left;">Compiled Code It should have the extension <span class="s3">.LCOM or .DFASL</span>. For</p><p style="padding-left: 251pt;text-indent: 0pt;line-height: 107%;text-align: left;">example, a file called <span class="s3">MYCODE.DFASL </span>should contain compiled code.</p><p style="padding-top: 6pt;padding-left: 251pt;text-indent: -144pt;line-height: 107%;text-align: left;">A Sketch Its extension should be <span class="s3">.SKETCH</span>. For example, a file called <span class="s3">MOUNTAINS.SKETCH </span>should contain a Sketch.</p><p style="padding-top: 7pt;padding-left: 251pt;text-indent: -143pt;line-height: 107%;text-align: left;">Text It should have the extension <span class="s3">.TEDIT</span>. For example, a file called <span class="s3">REPORT.TEDIT </span>should contain text that can be edited with the editor <span class="s3">TEDIT</span>.</p><p style="text-indent: 0pt;text-align: left;"><br/></p><h2 style="padding-left: 35pt;text-indent: 0pt;text-align: left;"><a name="a9">Directories                                                                                                         </a></h2><p style="padding-top: 9pt;padding-left: 107pt;text-indent: 0pt;line-height: 106%;text-align: left;">This section focu ses on how you can find files, and how you can easily manipulate files. To see all the files listed on a device, use the function <span class="s3">DIR</span>. For example, to see what files are stored in your current directory, type:</p><p class="s3" style="padding-top: 7pt;padding-left: 143pt;text-indent: 0pt;text-align: left;">(DIR *.*)</p><p style="padding-top: 7pt;padding-left: 107pt;text-indent: 0pt;text-align: justify;">Partial directory listings can be gotten by specifying a file name, rather than just a</p><p style="padding-left: 107pt;text-indent: 0pt;line-height: 107%;text-align: justify;">device name. The wildcard character <span class="s3">* </span>can be used to match any number of unknown characters. For example, the command <span class="s3">(DIR T*) </span>will list the names of all files that begin with the letter <span class="s3">T</span>. An example using the wildcard is shown in Figure 4-1.</p><p style="text-indent: 0pt;text-align: left;"><br/></p><p style="padding-left: 198pt;text-indent: 0pt;text-align: left;"><span><img width="300" height="139" alt="image" src="Image_031.gif"/></span></p><p style="text-indent: 0pt;text-align: left;"><br/></p><p style="padding-top: 4pt;padding-left: 220pt;text-indent: 0pt;text-align: left;">Figure 4-1. Using <span class="s3">DIR </span>with a Wildcard</p><p style="text-indent: 0pt;text-align: left;"><br/></p><h2 style="padding-left: 35pt;text-indent: 0pt;text-align: left;"><a name="a10">Directory Options                                                                                             </a></h2><p style="padding-top: 9pt;padding-left: 107pt;text-indent: 0pt;line-height: 107%;text-align: left;">Various words can appear as extra arguments to the <span class="s3">DIR </span>command. these words give you extra information about the files.</p><p class="s3" style="padding-top: 6pt;padding-left: 107pt;text-indent: 0pt;text-align: left;">SIZE <span class="p">displays the size of each file in the directory. For example, type:</span></p><p class="s3" style="padding-top: 8pt;padding-left: 143pt;text-indent: 0pt;text-align: left;">(DIR {DSK} SIZE)</p><p class="s3" style="padding-top: 7pt;padding-left: 107pt;text-indent: 0pt;line-height: 107%;text-align: left;">DATE <span class="p">displays the creation date of each file in the directory. An example of this is shown in Figure 4-2.</span></p><p style="text-indent: 0pt;text-align: left;"><br/></p><p style="padding-left: 198pt;text-indent: 0pt;text-align: left;"><span><img width="300" height="139" alt="image" src="Image_032.gif"/></span></p><p style="padding-top: 9pt;padding-left: 106pt;text-indent: 127pt;line-height: 164%;text-align: left;">Figure 4-2. Example Using <span class="s3">DATE DEL </span>deletes all the files foun d by the directory command.</p><p style="text-indent: 0pt;text-align: left;"><br/></p><h2 style="padding-top: 9pt;padding-left: 35pt;text-indent: 0pt;text-align: left;"><a name="a11">Subdirectories                                                                                                  </a></h2><p style="padding-top: 9pt;padding-left: 107pt;text-indent: 0pt;text-align: left;">Sudirectories are very helpful for organizing files. A set of files that have a single</p><p style="padding-left: 107pt;text-indent: 0pt;text-align: left;">purpose (for example, all the external documentation files for a system) can be grouped together into a subdirectory.</p><p style="padding-top: 7pt;padding-left: 107pt;text-indent: 0pt;text-align: left;">To associate a subdirectory with a filename, simply include the desired subdirectory as part of the name of the file. Subdirectories are specified after the device name and</p><p style="padding-left: 107pt;text-indent: 0pt;text-align: left;">before the simple filename. The first subdirectory should be between less-than and</p><p style="padding-left: 107pt;text-indent: 0pt;text-align: left;">greater-than signs (angle brackets) &lt; &gt;, with nested subdirectory names only followed by a greater than sign &gt;. For example:</p><p class="s3" style="padding-top: 8pt;padding-left: 143pt;text-indent: 0pt;text-align: left;">{DSK}&lt;Directory&gt;SubDirectory&gt;SubSubDirectory&gt;...&gt;filename</p><p style="padding-top: 7pt;padding-left: 107pt;text-indent: 0pt;text-align: left;">or use the UNIX convention:</p><p class="s3" style="padding-top: 7pt;padding-left: 143pt;text-indent: 0pt;text-align: left;">{DSK}/Directory/Subdirectory/Subsubdirectory/filename</p><p style="text-indent: 0pt;text-align: left;"><br/></p><h2 style="padding-top: 4pt;padding-left: 35pt;text-indent: 0pt;text-align: left;"><a name="a12">To See What Files Are Loaded                                                                        </a></h2><p style="padding-top: 9pt;padding-left: 107pt;text-indent: 0pt;line-height: 164%;text-align: left;">If you type <span class="s3">FILELST&lt;CR&gt;</span>, the names of all the files you loaded will be displayed. Type <span class="s3">SYSFILES&lt;CR&gt; </span>to see what files are loaded to create the sysout.</p><p style="text-indent: 0pt;text-align: left;"><br/></p><h2 style="padding-top: 9pt;padding-left: 35pt;text-indent: 0pt;text-align: left;"><a name="a13">Simple Commands for Manipulating Files                                                     </a></h2><p style="padding-top: 9pt;padding-left: 107pt;text-indent: 0pt;text-align: left;">When using these functions, always be sure to specify the full filename, including subfile directories if appropriate.</p><p style="padding-top: 7pt;padding-left: 107pt;text-indent: 0pt;text-align: left;">To have the conents of a file displayed in a window:</p><p class="s3" style="padding-top: 7pt;padding-left: 143pt;text-indent: 0pt;text-align: left;">(SEE ’<span class="s4">filename</span>)</p><p style="padding-top: 7pt;padding-left: 107pt;text-indent: 0pt;text-align: left;">To copy a file (see Figure 4-3):</p><p class="s3" style="padding-top: 7pt;padding-left: 143pt;text-indent: 0pt;text-align: left;">(COPYFILE ’<span class="s4">oldfilename </span>’<span class="s4">newfilename</span>)</p><p style="text-indent: 0pt;text-align: left;"><br/></p><p style="padding-left: 143pt;text-indent: 0pt;text-align: left;"><span><img width="447" height="114" alt="image" src="Image_033.gif"/></span></p><p style="padding-top: 7pt;padding-left: 221pt;text-indent: 0pt;text-align: left;">Figure 4-3. Example Use of <span class="s3">COPYFILE</span></p><p style="padding-top: 7pt;padding-left: 107pt;text-indent: 0pt;text-align: left;">To delete a file (see Figure 4-4):</p><p class="s3" style="padding-top: 7pt;padding-left: 143pt;text-indent: 0pt;text-align: left;">(DELFILE ’<span class="s4">filename</span>)</p><p style="text-indent: 0pt;text-align: left;"><br/></p><p style="padding-left: 143pt;text-indent: 0pt;text-align: left;"><span><img width="447" height="114" alt="image" src="Image_034.gif"/></span></p><p style="padding-top: 7pt;padding-left: 224pt;text-indent: 0pt;text-align: left;">Figure 4-4. Example Use of <span class="s3">DELFILE</span></p><p style="padding-top: 7pt;padding-left: 107pt;text-indent: 0pt;text-align: left;">To rename a file:</p><p class="s4" style="padding-top: 7pt;padding-left: 143pt;text-indent: 0pt;text-align: left;"><span class="s3">(RENAMEFILE ’</span>oldfilename <span class="p">’</span>newfilename<span class="s3">)</span></p><p style="padding-top: 7pt;padding-left: 107pt;text-indent: 0pt;text-align: left;">Files that contain Lisp expressions can be loaded into the environment. That means that the information on them is read, evaluated, and incorporated into the Medley</p><p style="padding-left: 107pt;text-indent: 0pt;text-align: left;">environment. To load a file, type:</p><p class="s3" style="padding-top: 7pt;padding-left: 143pt;text-indent: 0pt;text-align: left;">(LOAD ’<span class="s4">filename</span>)</p><p style="text-indent: 0pt;text-align: left;"><br/></p><h2 style="padding-left: 35pt;text-indent: 0pt;text-align: left;"><a name="a14">Connecting to a Directory                                                                               </a></h2><p style="padding-top: 9pt;padding-left: 107pt;text-indent: 0pt;text-align: justify;">Often, each person or project has a subdirectory where files are stored. If this is your situation, you will want any files you create to be put into this directory automatically. This means you should &quot;connect&quot; to the directory.</p><p style="text-indent: 0pt;text-align: left;"><br/></p><p class="s3" style="padding-top: 4pt;padding-left: 107pt;text-indent: 0pt;line-height: 107%;text-align: left;">CONN <span class="p">is the Medley command that connects you to a directory. For example, </span>CONN <span class="p">in Figure 4-5 connects you to the subsubdirectory </span>IM<span class="p">, in the subdirectory </span>PRIMER <span class="p">, the directory </span>LISPFILES<span class="p">, on the device </span>DSK<span class="p">. This information—the device and the</span></p><p style="padding-left: 107pt;text-indent: 0pt;text-align: left;">directory names down to the subdirectory to which you want to be connected—is called the &quot;path&quot; to that subdirectory. <span class="s3">CONN </span>expects the path to a directory as an argument.</p><p style="text-indent: 0pt;text-align: left;"><br/></p><p style="padding-left: 143pt;text-indent: 0pt;text-align: left;"><span><img width="447" height="114" alt="image" src="Image_035.gif"/></span></p><p style="text-indent: 0pt;text-align: left;"><br/></p><p style="padding-left: 156pt;text-indent: 0pt;text-align: left;">Figure 4-5. <span class="s3">CONN</span>ecting to Subdirectory Primer Subsubdirectory <span class="s3">IM</span></p><p style="padding-top: 7pt;padding-left: 107pt;text-indent: 0pt;line-height: 107%;text-align: left;">Once you are connected to a directory, the command <span class="s3">DIR </span>will assume you want to see the files in that directory, or any of its subdirectories.</p><p style="padding-top: 6pt;padding-left: 107pt;text-indent: 0pt;line-height: 106%;text-align: left;">Other commands that require a filename as an argument (e.g., <span class="s3">SEE</span>, above) will assume that the file is in the connecteds directory if there is no path specified with the filename. This will often save you typing.</p><p style="text-indent: 0pt;text-align: left;"><br/></p><h2 style="padding-left: 35pt;text-indent: 0pt;text-align: left;"><a name="a15">File Version Numbers                                                                                      </a></h2><p style="padding-top: 9pt;padding-left: 107pt;text-indent: 0pt;text-align: left;">When stored, each filename is fillowed by a semicolon and a number, as shown in this example:</p><p class="s3" style="padding-top: 8pt;padding-left: 143pt;text-indent: 0pt;text-align: left;">MYFILE.TEDIT;1</p><p style="padding-top: 7pt;padding-left: 107pt;text-indent: 0pt;text-align: left;">The number is the version number of the file. This is the system’s way of protecting your files from being overwritten. Each time the file is written, a new file is created with a version number one greater than the last. This new file will have everything from your previous file, plus all of your changes.</p><p style="padding-top: 7pt;padding-left: 107pt;text-indent: 0pt;text-align: left;">In most cases, you can exclude the version number when referencing the file. When the version is not specified, and there is more than one version of the file on that particular directory, the system generally uses your most recent version. An exception is the</p><p style="padding-left: 107pt;text-indent: 0pt;line-height: 107%;text-align: left;">function <span class="s3">DELFILE</span>, which deletes the oldest version (the one with the lowest version number) if none is specified.</p><p style="text-indent: 0pt;text-align: left;"><br/></p><p style="text-indent: 0pt;text-align: left;"><br/></p><p style="padding-left: 209pt;text-indent: 0pt;text-align: left;">[This page intentionally left blank]</p></li><li><h1 style="padding-top: 3pt;padding-left: 60pt;text-indent: -25pt;text-align: left;"><a name="bookmark7">FILEBROWSER</a></h1></li></ol><p style="padding-left: 35pt;text-indent: 0pt;line-height: 6pt;text-align: left;"><span><img width="640" height="8" alt="image" src="Image_036.png"/></span></p><p style="text-indent: 0pt;text-align: left;"><br/></p><p style="padding-top: 15pt;padding-left: 107pt;text-indent: 0pt;text-align: left;">The FileBrowser is a Lisp Library Package that works with files stored on disk and floppy devices, and can be used as a file directory editor. If it is not loaded into your sysout, you need to load it first by typing:</p><p class="s3" style="padding-top: 6pt;padding-left: 143pt;text-indent: 0pt;text-align: left;">(LOAD ’FILEBROWSER.LCOM)</p><p style="text-indent: 0pt;text-align: left;"><br/></p><h2 style="padding-left: 35pt;text-indent: 0pt;text-align: left;"><a name="a16">Calling the FileBrowser                                                                                   </a></h2><p style="text-indent: 0pt;text-align: left;"><br/></p><p style="padding-top: 4pt;padding-left: 107pt;text-indent: 0pt;text-align: left;">Calling the FileBrowser with the directory calls up the files stored in that directory:</p><p class="s3" style="padding-top: 7pt;padding-left: 143pt;text-indent: 0pt;text-align: left;">(FB ’&lt;usr&gt;local&gt;lde&gt;)</p><p style="text-indent: 0pt;text-align: left;"><br/></p><p style="padding-left: 107pt;text-indent: 0pt;text-align: left;">Another way to call a FileBrowser is to choose &quot;FileBrowser&quot; from the background</p><p style="padding-left: 107pt;text-indent: 0pt;text-align: left;">menu. You will be prompted for a description of the files to be included (see Figure 5-1). Type an asterisk (*), then press Return to see all the files in the connected directory.</p><p style="text-indent: 0pt;text-align: left;"><br/></p><p style="padding-left: 195pt;text-indent: 0pt;text-align: left;"><span><img width="307" height="206" alt="image" src="Image_037.gif"/></span></p><p style="text-indent: 0pt;text-align: left;"><br/></p><p style="padding-top: 4pt;padding-left: 185pt;text-indent: 0pt;text-align: left;">Figure 5-1. Prompt for Files to Include in FileBrowser</p><p style="text-indent: 0pt;text-align: left;"><br/></p><p style="padding-left: 107pt;text-indent: 0pt;text-align: left;">These show a directory of the device in a window you can leave on the screen at all times. The parts of the FileBrowser window are shown below.</p><p style="text-indent: 0pt;text-align: left;"><br/></p><p style="text-indent: 0pt;text-align: left;"><br/></p><p style="text-indent: 0pt;text-align: left;"><span><img width="498" height="371" alt="image" src="Image_038.png"/></span></p><p class="s3" style="text-indent: 0pt;text-align: left;">Prompt Window</p><p style="text-indent: 0pt;text-align: left;"/><p class="s11" style="text-indent: 0pt;text-align: left;">  </p><p style="text-indent: 0pt;text-align: left;"/><p class="s3" style="text-indent: 0pt;text-align: left;">Command Menu  <u>   </u></p><p style="text-indent: 0pt;text-align: left;"/><p class="s11" style="text-indent: 0pt;text-align: left;">         <span class="s3">  File List</span></p><p style="text-indent: 0pt;text-align: left;"/><p style="padding-top: 4pt;padding-left: 107pt;text-indent: 103pt;line-height: 191%;text-align: left;">Figure 5-2. Parts of a FileBrowser Window Now you do not need to continually type the directory command.</p><p style="padding-left: 107pt;text-indent: 0pt;text-align: left;">To use the FileBrowser, choose a file by pointing to the file with the mouse and pressing the left or middle mouse button. A small dark arrow appears to the left of the file</p><p style="padding-left: 107pt;text-indent: 0pt;text-align: left;">name. Choose a command from the menu at the right. In Figure 5-3, the files</p><p class="s3" style="padding-left: 107pt;text-indent: 0pt;text-align: left;">OCH1.TEDIT;1<span class="p">, </span>OCH10.TEDIT;1<span class="p">, and </span>OCH11.TEDIT;1 <span class="p">have been selected.</span></p><p style="text-indent: 0pt;text-align: left;"><br/></p><p style="padding-left: 106pt;text-indent: 0pt;text-align: left;">The left mouse button only allows you to choose one file at a time. Even if you choose other files, only the last file you selected with the left mouse button will remain</p><p style="padding-left: 107pt;text-indent: 0pt;text-align: left;">marked as chosen. When you use the middle mouse button to select a file, the file is added to those already chosen.</p><p style="text-indent: 0pt;text-align: left;"><br/></p><p style="padding-left: 107pt;text-indent: 0pt;text-align: left;">To unpick an already chosen file, hold the Control key down while pressing the middle mouse button.</p><p style="text-indent: 0pt;text-align: left;"><br/></p><p style="padding-left: 195pt;text-indent: 0pt;text-align: left;"><span><img width="307" height="174" alt="image" src="Image_039.gif"/></span></p><p style="text-indent: 0pt;text-align: left;"><br/></p><p style="padding-left: 253pt;text-indent: 0pt;text-align: left;">Figure 5-3. Files Chosen</p><ol id="l6"><li><p class="s6" style="padding-top: 3pt;padding-left: 466pt;text-indent: -466pt;text-align: right;">FILEBROWSER</p><p style="padding-left: 35pt;text-indent: 0pt;line-height: 1pt;text-align: left;"><span><img width="665" height="1" alt="image" src="Image_040.png"/></span></p><p style="text-indent: 0pt;text-align: left;"><br/></p><p style="padding-top: 4pt;padding-left: 19pt;text-indent: 0pt;text-align: center;">The next section contains a  summary of  the FileBrowser commands.</p><p style="text-indent: 0pt;text-align: left;"><br/></p><h2 style="padding-left: 35pt;text-indent: 0pt;text-align: left;"><a name="a17">FileBrowser Commands                                                                                  </a></h2><p style="text-indent: 0pt;text-align: left;"><br/></p><p class="s3" style="padding-top: 4pt;padding-left: 179pt;text-indent: -54pt;line-height: 107%;text-align: left;">Delete <span class="p">In the FileBrowser, this command marks a file, or files, for deletion (see Figure 5-4). These files are marked by a black line crossing through</span></p><p style="padding-left: 179pt;text-indent: 0pt;line-height: 106%;text-align: left;">them. You may select and mark any number of files for deletion. <span class="s3">Delete </span>does not actually remove these files from the device. The <span class="s3">Expunge </span>command actually wipes out the files previously marked for deletion.</p><p style="text-indent: 0pt;text-align: left;"><br/></p><p style="padding-left: 195pt;text-indent: 0pt;text-align: left;"><span><img width="307" height="177" alt="image" src="Image_041.gif"/></span></p><p style="text-indent: 0pt;text-align: left;"><br/></p><p style="padding-left: 223pt;text-indent: 0pt;text-align: left;">Figure 5-4. Files Marked for Deletion</p><p style="text-indent: 0pt;text-align: left;"><br/></p><p class="s3" style="padding-left: 179pt;text-indent: -66pt;line-height: 107%;text-align: left;">Undelete <span class="p">Undoes the delete command for one or more files. Undelete erases the black line through a file marked for deletion.</span></p><p class="s3" style="padding-top: 9pt;padding-left: 137pt;text-indent: 0pt;text-align: left;">Copy <span class="p">This command copies the chosen file. The destination filename should</span></p><p style="padding-left: 179pt;text-indent: 0pt;text-align: left;">be typed at a prompt that appears in the window above the FileBrowser.</p><p style="padding-left: 179pt;text-indent: 0pt;text-align: left;">Wildcards do not work for this prompt. You must type the whole</p><p style="padding-left: 179pt;text-indent: 0pt;text-align: left;">unquoted filename. If more than one file is chosen to be copied, you will be prompted for a directory name. The files will be copied into the</p><p style="padding-left: 179pt;text-indent: 0pt;text-align: left;">directory you give, but with the same filenames as the ones they have in their original location.</p><p style="text-indent: 0pt;text-align: left;"><br/></p><p class="s3" style="padding-left: 179pt;text-indent: -54pt;line-height: 107%;text-align: left;">Rename <span class="p">This command works much like the Copy command, but does not leave the original file. The chosen file will be renamed to the destination</span></p><p style="padding-left: 179pt;text-indent: 0pt;line-height: 11pt;text-align: left;">filename. You will be prompted, in the prompt window, for the</p><p style="padding-left: 179pt;text-indent: 0pt;text-align: left;">destination filename. Give the complete unquoted filename. If more</p><p style="padding-left: 179pt;text-indent: 0pt;text-align: left;">than one file is chose to be renamed, you will be prompted for a directory name. The files will be moved into the directory you give.</p><p style="text-indent: 0pt;text-align: left;"><br/></p><p class="s3" style="padding-left: 179pt;text-indent: -66pt;line-height: 107%;text-align: left;">Hardcopy <span class="p">If you do not have a hardcopy device, using this command causes an error. Otherwise, it gives a hardcopy of the file.</span></p><p class="s3" style="padding-top: 9pt;padding-left: 179pt;text-indent: -36pt;line-height: 107%;text-align: left;">See <span class="p">Shows you a file in a window. To use this command, choose a single filename, then the See command. You are prompted for a window.</span></p><p style="padding-left: 179pt;text-indent: 0pt;text-align: left;">Each time the See command is chosen, a new window is opened to display the file.</p><p class="s3" style="padding-top: 9pt;padding-left: 179pt;text-indent: -42pt;line-height: 107%;text-align: left;">Edit <span class="p">Calls the editor with the file as input. If the file is an executable one (i.e., Lisp code as opposed to a documentation file), only the </span>FILECOMS <span class="p">list is edited. The </span>FILECOMS <span class="p">list is the list of variables, lists, and</span></p><p style="text-indent: 0pt;text-align: left;"><br/></p><p style="padding-top: 4pt;padding-left: 179pt;text-indent: 0pt;text-align: left;">functions that are contained on that file. FileBrowser loads it and then allows you to edit the <span class="s3">FILECOMS </span>.</p><p class="s3" style="padding-top: 10pt;padding-left: 137pt;text-indent: 0pt;text-align: left;">Load <span class="p">Choose a file with the left mouse button, or a group of files with the</span></p><p style="padding-left: 179pt;text-indent: 0pt;text-align: left;">middle mouse button. Once the filenames have been blackened, choose the Load command to load them all into Medley.</p><p style="text-indent: 0pt;text-align: left;"><br/></p><p class="s3" style="padding-left: 179pt;text-indent: -60pt;line-height: 107%;text-align: left;">Compile <span class="p">This command calls the file compiler with the chosen filename(s) as arguments. The compiler compiles a file foun d on a storage device</span></p><p style="padding-left: 179pt;text-indent: 0pt;line-height: 107%;text-align: left;">(<span class="s3">{DSK}</span>), not the functions defined in the Medley image. If any functions on a loaded file have been changed, run the function (<span class="s3">MAKEFILE ’filename</span>) to write the current version before compiling it. Files do not have to be loaded to use the <span class="s3">Compile </span>command.</p><p class="s3" style="padding-top: 10pt;padding-left: 119pt;text-indent: 0pt;text-align: left;">Expunge <span class="p">This command completely deletes all the marked files from the</span></p><p style="padding-left: 179pt;text-indent: 0pt;text-align: left;">directory. This allows you to remove unwanted files from your storage device.</p><p style="text-indent: 0pt;text-align: left;"><br/></p><p class="s3" style="padding-left: 107pt;text-indent: 0pt;text-align: left;">Recompute <span class="p">Choose this command when you know that the directory has been</span></p><p style="padding-left: 179pt;text-indent: 0pt;text-align: left;">changed and should be reread (e.g., after creating new versions of a file).</p></li><li><h1 style="padding-top: 3pt;padding-left: 60pt;text-indent: -25pt;text-align: left;"><a name="bookmark8">THOSE WONDERFUL WINDOWS!</a></h1><p style="padding-left: 35pt;text-indent: 0pt;line-height: 6pt;text-align: left;"><span><img width="640" height="8" alt="image" src="Image_042.png"/></span></p><p style="text-indent: 0pt;text-align: left;"><br/></p><p style="padding-top: 15pt;padding-left: 107pt;text-indent: 0pt;text-align: left;">A window is a designated area on the screen. Every rectangular box on the screen is a window. While Medley supplies many of the windows (such as the Executive Window), you may also create your own. Among other things, you will type, draw pictures, and</p><p style="padding-left: 107pt;text-indent: 0pt;text-align: left;">save portions of your screen with windows.</p><p style="text-indent: 0pt;text-align: left;"><br/></p><h2 style="padding-left: 35pt;text-indent: 0pt;text-align: left;"><a name="a18">Windows Provided by Medley                                                                         </a></h2><p style="text-indent: 0pt;text-align: left;"><br/></p><p style="padding-top: 4pt;padding-left: 107pt;text-indent: 0pt;text-align: left;">Two important windows are available as soon as you enter the Medley environment.</p><p style="padding-left: 107pt;text-indent: 0pt;text-align: left;">One is the Executive Window, the main window where you will run your functions. It is the window that the caret is in when you turn on your machine, and load Medley. It is</p><p style="padding-bottom: 2pt;padding-left: 107pt;text-indent: 0pt;text-align: left;">shown in Figure 6-1.</p><p style="padding-left: 196pt;text-indent: 0pt;text-align: left;"><span><img width="240" height="130" alt="image" src="Image_043.gif"/></span></p><p style="text-indent: 0pt;text-align: left;"><br/></p><p style="padding-left: 111pt;text-indent: 0pt;text-align: center;">Figure 6-1. Medley  Executive Window</p><p style="text-indent: 0pt;text-align: left;"><br/></p><p style="padding-top: 7pt;padding-bottom: 1pt;padding-left: 107pt;text-indent: 0pt;text-align: justify;">The other window that is open when you enter Medley is the &quot;Prompt Window&quot;. It is the long thin black window at the top of the screen. It displays system prompts, or prompts you have associated with your programs. (See Figure 6-2.)</p><p style="padding-left: 170pt;text-indent: 0pt;text-align: left;"><span><img width="311" height="152" alt="image" src="Image_044.gif"/></span></p><p style="text-indent: 0pt;text-align: left;"><br/></p><p style="padding-left: 111pt;text-indent: 0pt;text-align: center;">Figure 6-2. Prompt Window</p><p style="text-indent: 0pt;text-align: left;"><br/></p><p style="padding-top: 7pt;padding-left: 107pt;text-indent: 0pt;text-align: left;">Other programs, such as the editors, also use windows. These windows appear when</p><p style="padding-left: 107pt;text-indent: 0pt;text-align: justify;">the program starts to run, and close (no longer appear on the screen) when the program is done running.</p><p style="text-indent: 0pt;text-align: left;"><br/></p><h2 style="padding-top: 4pt;padding-left: 35pt;text-indent: 0pt;text-align: left;"><a name="a19">Creating a Window                                                                                           </a></h2><p style="text-indent: 0pt;text-align: left;"><br/></p><p style="padding-top: 4pt;padding-left: 107pt;text-indent: 0pt;line-height: 107%;text-align: left;">To create a new window, type: <span class="s9">(CREATEW)</span>. The mouse cursor will change, and have a small square attached to it. (See Figure 6-3.)</p><p style="text-indent: 0pt;text-align: left;"><br/></p><p style="text-indent: 0pt;text-align: left;"><br/></p><p style="padding-left: 220pt;text-indent: 0pt;text-align: left;"><span><img width="168" height="187" alt="image" src="Image_045.gif"/></span></p><p style="text-indent: 0pt;text-align: left;"><br/></p><p style="padding-left: 171pt;text-indent: 0pt;text-align: left;">Figure 6-3. Mouse Cursor Asking You to Sweep Out Window</p><p style="text-indent: 0pt;text-align: left;"><br/></p><p style="padding-left: 107pt;text-indent: 0pt;text-align: left;">There may be a prompt in the prompt window to create a window. Press and hold the left mouse button. Move the mouse around, and notice that it sweeps out a rectangle. When the rectangle is the size that you’d like your window to be, release the left mouse button. More specific information about the creation of windows, such as giving them</p><p style="padding-left: 107pt;text-indent: 0pt;text-align: left;">titles and specifying their size and position on the screen when they are created, is given in the <span class="s3">WINDOWPROP </span>section of Chapter 12.</p><p style="text-indent: 0pt;text-align: left;"><br/></p><h2 style="padding-left: 35pt;text-indent: 0pt;text-align: left;"><a name="a20">Right Button Default Window Menu                                                               </a></h2><p style="padding-top: 9pt;padding-left: 107pt;text-indent: 0pt;text-align: left;">Position the cursor inside the window you just created, and press and hold the right mouse button. A menu of commands should appear (do not release the right button!), like the one in Figure 6-4. To execute one of the commands on this menu, choose the item. Making a choice from a menu is explained in Chapter 3.</p><p style="text-indent: 0pt;text-align: left;"><br/></p><p style="text-indent: 0pt;text-align: left;"><br/></p><p style="padding-left: 288pt;text-indent: 0pt;text-align: left;"><span><img width="71" height="122" alt="image" src="Image_046.gif"/></span></p><p style="text-indent: 0pt;text-align: left;"><br/></p><p style="padding-top: 4pt;padding-left: 202pt;text-indent: 0pt;text-align: left;">Figure 6-4 Right Button Default Window Menu</p><p style="text-indent: 0pt;text-align: left;"><br/></p><p style="padding-top: 7pt;padding-left: 107pt;text-indent: 0pt;text-align: left;">As an example, select &quot;Move&quot; from this menu. The mouse cursor will become a ghost window (ju st an outline of a window, the same size as the one you are moving), with a square attached to one corner, like the one shown in Figure 6-5.</p><p style="text-indent: 0pt;text-align: left;"><br/></p><p style="padding-left: 305pt;text-indent: 0pt;text-align: left;"><span><img width="16" height="16" alt="image" src="Image_047.gif"/></span></p><p style="text-indent: 0pt;text-align: left;"><br/></p><p style="padding-top: 4pt;padding-left: 111pt;text-indent: 0pt;text-align: center;">Figure 6-5 Mouse Cursor for  Moving a  Window</p><p style="text-indent: 0pt;text-align: left;"><br/></p><p style="padding-top: 7pt;padding-left: 107pt;text-indent: 0pt;text-align: left;">Move the mouse around. The ghost window will follow. Click the left mouse button to place tho window in a new location.</p><p style="text-indent: 0pt;text-align: left;"><br/></p><p style="padding-left: 106pt;text-indent: 0pt;text-align: left;">Choose &quot;Shape&quot;, and notice that you are prompted to sweep out another window. Your original window will have the shape of the window you sketch out.</p><p style="text-indent: 0pt;text-align: left;"><br/></p><h2 style="padding-left: 35pt;text-indent: 0pt;text-align: left;"><a name="a21">Explanation of Each Menu Item                                                                      </a></h2><p style="padding-top: 9pt;padding-left: 107pt;text-indent: 0pt;text-align: left;">The meaning of each right button default window menu item is explained below:</p><p style="text-indent: 0pt;text-align: left;"><br/></p><p style="padding-left: 107pt;text-indent: 0pt;text-align: left;">Close Removes the window from the screen</p><p style="padding-top: 7pt;padding-left: 107pt;text-indent: 0pt;line-height: 165%;text-align: left;">Snap Copies a portion of the screen into a new window Paint Allows drawing in a window</p><p style="padding-left: 107pt;text-indent: 0pt;line-height: 165%;text-align: left;">Clear Clears the window by erasing everything within the window boundaries Bury Puts the window beneath all other windows that overlap it</p><p style="padding-left: 107pt;text-indent: 0pt;text-align: left;">Redisplay Redisplays the window contents</p><p style="padding-top: 7pt;padding-left: 107pt;text-indent: 0pt;line-height: 165%;text-align: left;">Hardcopy Sends the contents of the window to a printer or to a flle Move Allows the wi ndow to be moved to a new spot on the screen Shape Repositions and/or reshapes the window</p><p style="padding-bottom: 2pt;padding-left: 179pt;text-indent: -72pt;text-align: left;">Shrink Reduces the window to a small black rectangle called an icon, or, if appropriate, to the shape for that window type (see Figure 6-6).</p><p style="padding-left: 271pt;text-indent: 0pt;text-align: left;"><span><img width="87" height="95" alt="image" src="Image_048.gif"/></span></p><p style="text-indent: 0pt;text-align: left;"><br/></p><p style="padding-left: 111pt;text-indent: 0pt;text-align: center;">Figure 6-6  Example Icon</p><p style="text-indent: 0pt;text-align: left;"><br/></p><p style="padding-left: 178pt;text-indent: -71pt;text-align: justify;">Expand Changes an icon back to its original window. Position the mouse cursor on the icon, depress the right button, and select Expand. Or, just button the icon with the middle mouse button.</p><p style="text-indent: 0pt;text-align: left;"><br/></p><p style="padding-left: 107pt;text-indent: 0pt;text-align: left;">These right-button default window menu selections are available in most windows, including the Executive Window. When the right button has other functions in a</p><p style="padding-left: 107pt;text-indent: 0pt;text-align: left;">window (as in an editor window), the right button default window menu should be accessible by pressing the Right button in the black border at the top of the window.</p><p style="text-indent: 0pt;text-align: left;"><br/></p><h2 style="padding-top: 4pt;padding-left: 35pt;text-indent: 0pt;text-align: left;"><a name="a22">Scrollable Windows                                                                                         </a></h2><p style="text-indent: 0pt;text-align: left;"><br/></p><p style="padding-top: 4pt;padding-left: 107pt;text-indent: 0pt;text-align: left;">Some windows in Medley are &quot;scrollable&quot;. This means that you can move the contents of the window up and down, or side to side, to see anything that doesn’t fit in the</p><p style="padding-left: 107pt;text-indent: 0pt;text-align: left;">window.</p><p style="text-indent: 0pt;text-align: left;"><br/></p><p style="padding-left: 107pt;text-indent: 0pt;text-align: left;">Point the mouse cursor to the left or bottom border of a window. If the window is scrollable, a &quot;scroll bar&quot; will appear. The mouse cursor will change to a double headed arrow. (See Figure 6-7.)</p><p style="text-indent: 0pt;text-align: left;"><br/></p><p style="padding-left: 224pt;text-indent: 0pt;text-align: left;"><span><img width="169" height="196" alt="image" src="Image_049.gif"/></span></p><p style="text-indent: 0pt;text-align: left;"><br/></p><p style="padding-left: 111pt;text-indent: 0pt;text-align: center;">Figure 6-7. Scroll Bar of Scrollable  Window</p><p style="text-indent: 0pt;text-align: left;"><br/></p><p style="padding-top: 7pt;padding-left: 107pt;text-indent: 0pt;text-align: left;">The scroll bar represents the full contents of the window. The example scroll bar is completely white because the window has nothing in it When a part of the scroll bar is shaded, the amount shaded represents the amount of the window’s contents currently</p><p style="padding-left: 107pt;text-indent: 0pt;text-align: left;">shown. If everything is showing, the scroll bar will be fully shaded. (See Figure 6-8.)</p><p style="padding-left: 107pt;text-indent: 0pt;text-align: left;">The position of the shading is also important. It represents the relationship of the</p><p style="padding-left: 107pt;text-indent: 0pt;text-align: left;">section currently diplayed to the the full contents of the window. For example, if the shaded section is at the bottom of the scroll bar, you are looking at the end of the file.</p><p style="text-indent: 0pt;text-align: left;"><br/></p><p style="padding-left: 197pt;text-indent: 0pt;text-align: left;"><span><img width="242" height="148" alt="image" src="Image_050.gif"/></span></p><p style="text-indent: 0pt;text-align: left;"><br/></p><p style="padding-left: 111pt;text-indent: 0pt;text-align: center;">Figure 6-8 Top of  File When Shading at  Top of Scroll Bar</p><p style="text-indent: 0pt;text-align: left;"><br/></p><p style="padding-left: 107pt;text-indent: 0pt;text-align: left;">When the scroll bar is visible, you can control the section of the window’s contents displayed:</p><p style="text-indent: 0pt;text-align: left;"><br/></p><ul id="l7"><li><p style="padding-left: 119pt;text-indent: -11pt;text-align: left;">To move the contents higher in the window (scroll the contents up in the window), press the leff button of the mouse, the mouse cursor changes to look like this:</p><p style="text-indent: 0pt;text-align: left;"><br/></p><p style="padding-left: 306pt;text-indent: 0pt;text-align: left;"><span><img width="12" height="21" alt="image" src="Image_051.gif"/></span></p><p style="text-indent: 0pt;text-align: left;"><br/></p><p style="padding-left: 111pt;text-indent: 0pt;text-align: center;">Figure 6-9. Upward Scrolling Cursor</p><p style="text-indent: 0pt;text-align: left;"><br/></p><p style="text-indent: 0pt;text-align: left;"><br/></p><p style="padding-left: 119pt;text-indent: 0pt;text-align: left;">The contents of the window will scroll up, making the line thit the cursor is beside the topmost line in the window.</p><p style="text-indent: 0pt;text-align: left;"><br/></p></li><li><p style="padding-left: 119pt;text-indent: -11pt;text-align: left;">To move the contonts lower in the window (scroll the contents &quot;down&quot; in the window), press the right button of the mouse, and the mouse cursor changes to look like this:</p><p style="text-indent: 0pt;text-align: left;"><br/></p><p style="padding-left: 306pt;text-indent: 0pt;text-align: left;"><span><img width="12" height="21" alt="image" src="Image_052.gif"/></span></p><p style="text-indent: 0pt;text-align: left;"><br/></p><p style="padding-left: 217pt;text-indent: 0pt;text-align: left;">Flgure 6-10. Downward Scrolling Cursor</p><p style="text-indent: 0pt;text-align: left;"><br/></p><p style="padding-left: 119pt;text-indent: 0pt;text-align: left;">The contents of the window scroll down, moving the line that is the topmost line in the window to beside the curtor.</p></li><li><p style="padding-top: 7pt;padding-left: 119pt;text-indent: -11pt;text-align: left;">To show a specific section of the window’s contents, remember that the scroll bar represents the full contents of the window. Move the mouse cursor to the relative</p><p style="padding-left: 119pt;text-indent: 0pt;text-align: left;">position of the section you want to see (e.g., to the top of the scroll bar if you want to see the top of the window’s contents). Press the middle button of the mouse. The mouse cursor will look like this:</p><p style="text-indent: 0pt;text-align: left;"><br/></p><p style="padding-left: 303pt;text-indent: 0pt;text-align: left;"><span><img width="17" height="17" alt="image" src="Image_053.gif"/></span></p><p style="text-indent: 0pt;text-align: left;"><br/></p><p style="padding-left: 213pt;text-indent: 0pt;text-align: left;">Figure 6-11 Proportional Scrolling Cursor</p><p style="text-indent: 0pt;text-align: left;"><br/></p><p style="padding-left: 119pt;text-indent: 0pt;text-align: left;">When you release the middle mouse button, the window’s contents at that relative position will be displayed.</p><p style="padding-top: 7pt;padding-left: 107pt;text-indent: 0pt;text-align: left;">The position of the mouse in the scroll bar defines how much of the window will be scrolled. If it is near the top, then only a little will be scrolled. If it is near the bottom, most of the window will be scrolled.</p><p style="text-indent: 0pt;text-align: left;"><br/></p><h2 style="padding-left: 35pt;text-indent: 0pt;text-align: left;"><a name="a23">Other Window Functions                                                                                 </a></h2><p style="text-indent: 0pt;text-align: left;"><br/></p><h4 style="padding-top: 4pt;padding-left: 71pt;text-indent: 0pt;text-align: left;"><a name="a24">PROMPTPRlNT</a></h4><p style="padding-top: 8pt;padding-left: 107pt;text-indent: 0pt;text-align: left;">Prints an expression to the black prompt window.</p><p style="text-indent: 0pt;text-align: left;"><br/></p><p style="padding-left: 107pt;text-indent: 0pt;text-align: left;">For example, type</p><p style="text-indent: 0pt;text-align: left;"><br/></p><p class="s9" style="padding-left: 107pt;text-indent: 0pt;text-align: left;"><a name="a25">(PROMPTPRINT &quot;THIS WILL BE PRINTED IN THE PROMPT WINDOW&quot;)</a></p><p style="text-indent: 0pt;text-align: left;"><br/></p><p style="padding-left: 107pt;text-indent: 0pt;text-align: left;">The message will appear in the prompt window. (See Figure 6-12.)</p><p style="text-indent: 0pt;text-align: left;"><br/></p><p style="padding-left: 199pt;text-indent: 0pt;text-align: left;"><span><img width="299" height="101" alt="image" src="Image_054.gif"/></span></p><p style="text-indent: 0pt;text-align: left;"><br/></p><p style="padding-left: 170pt;text-indent: 0pt;text-align: left;"><span><img width="376" height="101" alt="image" src="Image_055.gif"/></span></p><p style="text-indent: 0pt;text-align: left;"><br/></p><p style="padding-top: 4pt;padding-left: 241pt;text-indent: 0pt;text-align: left;">Figure 6-12 <span class="s3">PROMPTPRINT</span>ing</p><p style="text-indent: 0pt;text-align: left;"><br/></p><h4 style="padding-left: 71pt;text-indent: 0pt;text-align: left;"><a name="a26">WHlCHW</a></h4><p style="padding-top: 8pt;padding-left: 107pt;text-indent: 0pt;text-align: left;">Returns as a value the name of the window that the mouse cursor IS in.</p><p style="text-indent: 0pt;text-align: left;"><br/></p><p class="s3" style="padding-left: 107pt;text-indent: 0pt;text-align: left;">(WHICHW) <span class="p">can be used as an argument to any function expecting a window, or to</span></p><p style="padding-left: 107pt;text-indent: 0pt;text-align: left;">reclaim a window that has no name (that is not attached to some particular part of the program.).</p></li></ul></li><li><h1 style="padding-top: 3pt;padding-left: 60pt;text-indent: -25pt;text-align: left;"><a name="bookmark9">EDITING AND SAVING</a></h1><p style="padding-left: 35pt;text-indent: 0pt;line-height: 6pt;text-align: left;"><span><img width="640" height="8" alt="image" src="Image_056.png"/></span></p><p style="text-indent: 0pt;text-align: left;"><br/></p><p style="padding-top: 15pt;padding-left: 107pt;text-indent: 0pt;text-align: left;">This chapter explains how to define functions, how to edit them, and how to save your work.</p><p style="text-indent: 0pt;text-align: left;"><br/></p><h2 style="padding-left: 35pt;text-indent: 0pt;text-align: left;"><a name="a27">Defining Functions                                                                                           </a></h2><p style="text-indent: 0pt;text-align: left;"><br/></p><p class="s3" style="padding-top: 4pt;padding-left: 107pt;text-indent: 0pt;text-align: justify;">DEFUN <span class="p">can be used to define new functions. The syntax for it is:</span></p><p class="s3" style="padding-top: 7pt;padding-left: 143pt;text-indent: 0pt;text-align: left;">(DEFUN (&lt;functionname&gt; (&lt;parameter-list&gt;&lt;body-of-function&gt;))</p><p style="padding-top: 7pt;padding-left: 107pt;text-indent: 0pt;line-height: 106%;text-align: justify;">New functions can be created with <span class="s3">DEFUN </span>by typing directly into the Executive Window. Once defined, a function is a part of the Medley environment. For example, the function <span class="s3">EXAMPLE-ADDER </span>is defined in Figure 7-1.</p><p style="text-indent: 0pt;text-align: left;"><br/></p><p style="padding-left: 160pt;text-indent: 0pt;text-align: left;"><span><img width="397" height="126" alt="image" src="Image_057.gif"/></span></p><p style="text-indent: 0pt;text-align: left;"><br/></p><p style="padding-top: 4pt;padding-left: 193pt;text-indent: 0pt;text-align: left;">Figure 7-1. Defining the Function <span class="s3">EXAMPLE-ADDER</span></p><p style="text-indent: 0pt;text-align: left;"><br/></p><p style="padding-left: 107pt;text-indent: 0pt;text-align: left;">Now that the function is defined, it can be called from the Executive Window:</p><p style="text-indent: 0pt;text-align: left;"><br/></p><p style="padding-left: 162pt;text-indent: 0pt;text-align: left;"><span><img width="397" height="126" alt="image" src="Image_058.gif"/></span></p><p style="text-indent: 0pt;text-align: left;"><br/></p><p style="padding-top: 4pt;padding-left: 107pt;text-indent: 55pt;line-height: 164%;text-align: left;">Figure 7-2.. After <span class="s3">EXAMPLE-ADDER </span>is defined, it can he executed The function returns 6, after printing out the message.</p><p style="padding-left: 107pt;text-indent: 0pt;text-align: left;">Functions can also be defined using the editor DEdit described above. To do this, simply type</p><p class="s3" style="padding-top: 7pt;padding-left: 142pt;text-indent: 0pt;text-align: left;"><span class="p">(</span>ED <span class="s4">function-name ’</span>FUNCTIONS<span class="p">)</span></p><p style="padding-top: 7pt;padding-left: 107pt;text-indent: 0pt;text-align: left;">You will be told that no definition exists for the function, and a menu will pop up asking you what type of function you would like to create:</p><p style="text-indent: 0pt;text-align: left;"><br/></p><p style="padding-left: 163pt;text-indent: 0pt;text-align: left;"><span><img width="394" height="164" alt="image" src="Image_059.gif"/></span></p><p style="text-indent: 0pt;text-align: left;"><br/></p><p style="padding-top: 4pt;padding-left: 215pt;text-indent: 0pt;text-align: left;">Figure 7-3 Selecting a Function Template</p><p style="padding-top: 7pt;padding-left: 107pt;text-indent: 0pt;text-align: left;">Selecting the appropriate type will pop up an editor window with a function template. The use of the editor is explained in the Using the List Structure Editor section below.</p><p style="text-indent: 0pt;text-align: left;"><br/></p><h2 style="padding-left: 35pt;text-indent: 0pt;text-align: left;"><a name="a28">Simple Editing in the Executive Window                                                       </a></h2><p style="padding-top: 9pt;padding-left: 107pt;text-indent: 0pt;text-align: left;">First, type in an example function to edit:</p><p style="text-indent: 0pt;text-align: left;"><br/></p><p class="s3" style="padding-left: 197pt;text-indent: -54pt;line-height: 88%;text-align: left;">3/41&gt; (defun your-first-function (a b) (if (&gt; a b)</p><p class="s3" style="padding-left: 227pt;text-indent: 0pt;line-height: 88%;text-align: left;">’(the first is greater) ’(the second is greater)))</p><p style="padding-top: 6pt;padding-left: 107pt;text-indent: 0pt;text-align: left;">To run the function, type:</p><p class="s3" style="padding-top: 8pt;padding-left: 143pt;text-indent: 0pt;line-height: 88%;text-align: left;">3/42&gt; (YOUR-FIRST-FUNCTION 3 5) (THE SECOND IS GREATER)</p><p style="padding-top: 6pt;padding-left: 107pt;text-indent: 0pt;text-align: left;">Now, let’s alter this. Type:</p><p class="s3" style="padding-top: 7pt;padding-left: 143pt;text-indent: 0pt;text-align: left;">3/43&gt; FIX 41</p><p style="padding-top: 5pt;padding-left: 107pt;text-indent: 0pt;text-align: left;">Note that your original function is redisplayed, and ready to edit. (See Figure 7-4.)</p><p style="text-indent: 0pt;text-align: left;"><br/></p><p style="padding-left: 166pt;text-indent: 0pt;text-align: left;"><span><img width="386" height="93" alt="image" src="Image_060.gif"/></span></p><p style="text-indent: 0pt;text-align: left;"><br/></p><p style="padding-top: 4pt;padding-left: 215pt;text-indent: 0pt;text-align: left;">Figure 7-4. Using FIX to Edit a Fundion</p><p style="text-indent: 0pt;text-align: left;"><br/></p><p class="s10" style="padding-left: 107pt;text-indent: 0pt;text-align: left;">Move <span class="p">the text cursor to the appropriate place in the function by positioning the mouse cursor and pressing the left mouse button.</span></p><p class="s10" style="padding-top: 7pt;padding-left: 107pt;text-indent: 0pt;text-align: left;">Delete <span class="p">text by moving the caret to the beginning of the section to be deleted. Hold the right mouse button down and move the mouse cursor over the text. All of the</span></p><p style="padding-left: 107pt;text-indent: 0pt;text-align: left;">highlighted text between the caret and mouse cursor is deleted when you release the right mouse button.</p><p class="s10" style="padding-top: 7pt;padding-left: 107pt;text-indent: 0pt;text-align: left;">If you make a mistake, <span class="p">deletions can be undone. Press the UNDO key on the keypad to the left of the keyboard.</span></p><p style="padding-top: 7pt;padding-left: 107pt;text-indent: 0pt;text-align: left;">Now change <span class="s3">GREATER </span>to <span class="s3">BIGGER</span>:</p><p style="text-indent: 0pt;text-align: left;"><br/></p><ol id="l8"><li><p style="padding-top: 4pt;padding-left: 125pt;text-indent: -18pt;line-height: 107%;text-align: left;">Position the mouse cursor on the <span class="s3">G </span>of <span class="s3">GREATER </span>, and click the left mouse button. The text cursor is now where the mouse cursor is.</p></li><li><p style="padding-top: 6pt;padding-left: 125pt;text-indent: -18pt;text-align: left;">Next, press the right mouse button and hold it down. Notice that if you move the mouse cursor around, it will blacken the characters from the text cursor to the mouse cursor. Move the mouse so that the word &quot;<span class="s3">GREATER </span>&quot; is highlighted.</p></li><li><p style="padding-top: 7pt;padding-left: 125pt;text-indent: -17pt;text-align: left;">Release the right mouse button and <span class="s3">GREATER </span>is deleted.</p></li><li><p style="padding-top: 7pt;padding-left: 125pt;text-indent: -17pt;text-align: left;">Without moving the cursor, type in <span class="s3">BIGGER </span>.</p></li><li><p style="padding-top: 7pt;padding-left: 125pt;text-indent: -18pt;text-align: left;"><span class="s12">	</span>There are two ways to end the editing session and run the function. One is to type Control-<span class="s9">X</span>. (Hold the Control key down, and type <span class="s9">X</span>.) Another is to move the text</p><p style="padding-left: 124pt;text-indent: 0pt;text-align: left;">cursor to the end of the line and crø In both cases, the function has been edited!</p><p style="padding-top: 7pt;padding-left: 107pt;text-indent: 0pt;text-align: left;">Try the new version of the function by typing:</p><p class="s3" style="padding-top: 8pt;padding-left: 142pt;text-indent: 0pt;line-height: 88%;text-align: left;">3/48&gt; (YOUR-FIRST-FUNCTION 8 9) (THE SECOND IS BIGGER)</p><p style="padding-top: 6pt;padding-left: 107pt;text-indent: 0pt;text-align: left;">and get the new result, or you can type:</p><p class="s3" style="padding-top: 7pt;padding-left: 142pt;text-indent: 0pt;line-height: 11pt;text-align: left;">3/49&gt; REDO 42</p><p class="s3" style="padding-left: 142pt;text-indent: 0pt;line-height: 11pt;text-align: left;">(THE SECOND IS BIGGER)</p><p style="text-indent: 0pt;text-align: left;"><br/></p><h2 style="padding-left: 35pt;text-indent: 0pt;text-align: left;"><a name="a29">Using the List Structure Editor                                                                       </a></h2><p style="text-indent: 0pt;text-align: left;"><br/></p><p style="padding-top: 4pt;padding-left: 107pt;text-indent: 0pt;text-align: left;">If the function you want to edit is not readily available (i.e. the function is not in the</p><p style="padding-left: 107pt;text-indent: 0pt;text-align: left;">Executive Window, and you can’t remember the history list number, or you simply have a lot of editing), use the List Structure Editor, often called SEdit. This editor is evoked with a call to <span class="s3">ED</span>:</p><p class="s3" style="padding-top: 6pt;padding-left: 17pt;text-indent: 0pt;text-align: center;">81<span class="s2"></span><span class="p">(</span>ED ’YOUR-FIRST-FUNCTION ’FUNCTIONS)</p><p style="text-indent: 0pt;text-align: left;"><br/></p><p style="padding-left: 107pt;text-indent: 0pt;text-align: left;">Your function will be displayed in an edit window, as in Figure 7-5.</p><p style="padding-top: 7pt;padding-left: 107pt;text-indent: 0pt;text-align: left;">If there is no edit window on the screen, you will be prompted to create a window. As</p><p style="padding-left: 107pt;text-indent: 0pt;text-align: left;">before, hold the leff mouse button down, move the mouse until it form s a rectangle of an acceptable size and shape, then release the button. Your function definition will</p><p style="padding-left: 107pt;text-indent: 0pt;text-align: left;">automatically appear in this edit window.</p><p style="text-indent: 0pt;text-align: left;"><br/></p><p style="text-indent: 0pt;text-align: left;"><br/></p><p style="padding-left: 184pt;text-indent: 0pt;text-align: left;"><span><img width="336" height="131" alt="image" src="Image_061.gif"/></span></p><p style="text-indent: 0pt;text-align: left;"><br/></p><p style="padding-top: 4pt;padding-left: 246pt;text-indent: 0pt;text-align: left;">Figure 7-5. An Edit Window</p><p style="text-indent: 0pt;text-align: left;"><br/></p><p style="padding-left: 107pt;text-indent: 0pt;text-align: left;">Many changes are easily done with the structure editor. Notice that by pressing the left mouse button you can place the caret in position, and by pressing the middle mouse</p><p style="padding-left: 107pt;text-indent: 0pt;text-align: left;">button you can select atoms or s-expressions. Repeated pressing of the middle button selects bigger pieces of text.</p><p style="text-indent: 0pt;text-align: left;"><br/></p><p style="padding-top: 4pt;padding-left: 107pt;text-indent: 0pt;text-align: left;">To add an expression that does not appear in the edit window (i.e., it cannot simply be underlined), place the caret at the insertion point and type it in.. For example, to</p><p style="padding-left: 107pt;text-indent: 0pt;line-height: 107%;text-align: left;">replace the first <span class="s3">GREATER </span>with <span class="s3">LARGER</span>, place the caret to the left of <span class="s3">GREATER </span>, as shown in Figure 7-6.</p><p style="text-indent: 0pt;text-align: left;"><br/></p><p style="padding-left: 184pt;text-indent: 0pt;text-align: left;"><span><img width="336" height="131" alt="image" src="Image_062.gif"/></span></p><p style="text-indent: 0pt;text-align: left;"><br/></p><p style="padding-left: 111pt;text-indent: 0pt;text-align: center;">Figure 7-6. Caret Placement Prior  to Changing <span class="s3">GREATER </span>with <span class="s3">LARGER</span></p><p style="padding-top: 7pt;padding-left: 107pt;text-indent: 0pt;line-height: 107%;text-align: left;">Now press the DELETE key seven times, and type in <span class="s3">LARGER </span>. The window now looks like this:</p><p style="text-indent: 0pt;text-align: left;"><br/></p><p style="padding-left: 184pt;text-indent: 0pt;text-align: left;"><span><img width="336" height="131" alt="image" src="Image_063.gif"/></span></p><p style="padding-top: 9pt;padding-left: 111pt;text-indent: 0pt;text-align: center;">Figure 7-7. <span class="s3">GREATER </span>Changed to <span class="s3">LARGER</span></p><p style="padding-top: 7pt;padding-left: 107pt;text-indent: 0pt;text-align: left;">Notice the asterisk in the left edge of the title bar of the window. This designates that the function has be changed. Now exit the edit session by typing Control-X, and the function will be redifined.</p><p style="text-indent: 0pt;text-align: left;"><br/></p><h2 style="padding-left: 35pt;text-indent: 0pt;text-align: left;"><a name="a30">Commenting Functions                                                                                   </a></h2><p style="text-indent: 0pt;text-align: left;"><br/></p><p style="padding-top: 4pt;padding-left: 107pt;text-indent: 0pt;text-align: left;">Text can be marked as a comment by typing a semi-colon before the text of the comment.</p><p class="s3" style="padding-top: 6pt;padding-left: 143pt;text-indent: 0pt;text-align: left;">; This is the form of a comment</p><p style="padding-top: 7pt;padding-left: 107pt;text-indent: 0pt;text-align: left;">Inside an editor window, the comment will be printed in a different font and may be moved to the far right of the code. SEdit is familiar with the Common Lisp convention of single comments being on the far right, double comments being justified with the</p><p style="padding-left: 107pt;text-indent: 0pt;text-align: left;">function level, and triple comments being on the far left, as is shown in Figure 7-8.</p><p style="text-indent: 0pt;text-align: left;"><br/></p><p style="padding-left: 192pt;text-indent: 0pt;text-align: left;"><span><img width="317" height="146" alt="image" src="Image_064.gif"/></span></p><p style="text-indent: 0pt;text-align: left;"><br/></p><p style="padding-top: 4pt;padding-left: 228pt;text-indent: 0pt;text-align: left;">Figure 7-8. Placement of Comments</p><p style="padding-top: 7pt;padding-left: 107pt;text-indent: 0pt;text-align: justify;">There are other editor commands which can be very useful. To learn about them, read Appendix B of the <i>Release Notes</i>.</p><p style="text-indent: 0pt;text-align: left;"><br/></p><h2 style="padding-left: 35pt;text-indent: 0pt;text-align: left;"><a name="a31">File Functions and Variables: How to See and Save Them                          </a></h2><p style="padding-top: 9pt;padding-left: 107pt;text-indent: 0pt;text-align: justify;">With Medley, all work is done inside the Lisp environment. There is no operating system or command level other than the Executive Window. All functions and data</p><p style="padding-left: 107pt;text-indent: 0pt;text-align: justify;">structures are defined and edited using normal Lisp commands. This sertion describes tools in the Medley environment that will keep track of any changes that you make in the environment that you have not yet saved on files, such as defining new functions,</p><p style="padding-left: 107pt;text-indent: 0pt;text-align: justify;">changing the values of variables, or adding new variables. And it then has you save the changes in a file you specify. All of these functions are in the <span class="s3">INTERLISP </span>(<span class="s3">IL:</span>) package.</p><p style="text-indent: 0pt;text-align: left;"><br/></p><h2 style="padding-left: 35pt;text-indent: 0pt;text-align: left;"><a name="a32">File Variables                                                                                                    </a></h2><p style="text-indent: 0pt;text-align: left;"><br/></p><p style="padding-top: 4pt;padding-left: 107pt;text-indent: 0pt;text-align: left;">Certain system-defined global variables are used by the file package to keep track of the environment as it stands. You can get system information by checking the values of</p><p style="padding-left: 107pt;text-indent: 0pt;text-align: left;">these variables. Two important variables follow.</p><ul id="l9"><li><p class="s3" style="padding-top: 7pt;padding-left: 119pt;text-indent: -11pt;line-height: 107%;text-align: left;">FILELST <span class="p">evaluates to a list, all files that yoU have loaded into the Medley environment.</span></p></li><li><p class="s3" style="padding-top: 6pt;padding-left: 119pt;text-indent: -10pt;line-height: 106%;text-align: left;"><span class="s4">filename</span>COMS <span class="p">(Each file loaded into the Lisp environment has associated with it a global variable, whose name is formed by appending </span>COMS <span class="p">to the end of the filename.) This variable evaluates to a list of all the functions, variables, bitmaps, windows, and soon, that are stored on that particular file.</span></p></li></ul><p style="padding-top: 7pt;padding-left: 119pt;text-indent: 0pt;text-align: left;">For example, if you type:</p><p class="s3" style="padding-top: 7pt;padding-left: 143pt;text-indent: 0pt;text-align: left;">MYFILECOMS</p><p style="padding-top: 7pt;padding-left: 119pt;text-indent: 0pt;text-align: left;">the system will respond with something like:</p><p class="s3" style="padding-top: 7pt;padding-left: 149pt;text-indent: -6pt;line-height: 106%;text-align: left;">((FNS YOUR-FIRST-FUNCTION ) VARS))</p><p style="text-indent: 0pt;text-align: left;"><br/></p><h2 style="padding-left: 35pt;text-indent: 0pt;text-align: left;"><a name="a33">Saving Interlisp-D on Files                                                                              </a></h2><p style="padding-top: 9pt;padding-left: 107pt;text-indent: 0pt;line-height: 107%;text-align: left;">The functions <span class="s3">(FILES?) </span>and <span class="s3">(MAKEFILE </span>’<i>filename</i><span class="s3">) </span>are useful when it is time to save function, variables, windows, bitmaps, records and whatever else to files.</p><p class="s3" style="padding-top: 6pt;padding-left: 179pt;text-indent: -69pt;line-height: 107%;text-align: left;">(FILES?) <span class="p">displays a list of variables that have values and are not already a part of any file, and then the functions that are not already part of any file.</span></p><p style="padding-top: 6pt;padding-left: 179pt;text-indent: 0pt;text-align: left;">Type:</p><p class="s9" style="padding-top: 7pt;padding-left: 203pt;text-indent: 0pt;text-align: left;"><a name="a34">(FILES?)</a></p><p style="padding-top: 7pt;padding-left: 179pt;text-indent: 0pt;text-align: left;">the system will respond with something like:</p><p class="s3" style="padding-top: 7pt;padding-left: 203pt;text-indent: 0pt;line-height: 106%;text-align: left;">the variables: MY.VARIABLE CURRENT.TURTLE...to be dumped</p><p style="text-indent: 0pt;text-align: left;"><br/></p><p class="s3" style="padding-top: 5pt;padding-left: 203pt;text-indent: 0pt;line-height: 106%;text-align: left;">the functions: RIGHT LEFT FORWARD BACKWARD CLEAR-SCREEN...to be dumped</p><p class="s3" style="padding-top: 7pt;padding-left: 203pt;text-indent: 0pt;text-align: left;">want to say where the above go?</p><p style="text-indent: 0pt;text-align: left;"><br/></p><p style="padding-left: 179pt;text-indent: 0pt;text-align: left;">If you type Y, the system will prompt with each item. There are three options:</p><ol id="l10"><li><p style="padding-top: 7pt;padding-left: 197pt;text-indent: -17pt;text-align: left;">To save the item, type the filename (unquoted) of the file where the item should be placed. (This can be a brand new file or an existing file.)</p></li><li><p style="padding-top: 7pt;padding-left: 197pt;text-indent: -17pt;text-align: left;">To skip the item, without removing it from consideration the next</p><p style="padding-left: 197pt;text-indent: 0pt;line-height: 107%;text-align: left;">time <span class="s3">(FILES?) </span>is called, type crø This will allow you to postpone the decision about where to save the item.</p></li><li><p style="padding-top: 6pt;padding-left: 197pt;text-indent: -18pt;text-align: left;">If the item should not be saved at all, type ]. Nowhere will appear after the item.</p><p style="padding-top: 7pt;padding-left: 179pt;text-indent: 0pt;text-align: left;">Part of an example interaction is shown in the following figure:</p><p style="text-indent: 0pt;text-align: left;"><br/></p><p style="text-indent: 0pt;text-align: left;"><br/></p><p style="padding-left: 128pt;text-indent: 0pt;text-align: left;"><span><img width="487" height="274" alt="image" src="Image_065.gif"/></span></p><p style="padding-top: 6pt;padding-left: 172pt;text-indent: 0pt;text-align: left;">Figure 7-9. Part of an interaction using the function <span class="s3">FILES?</span></p><p class="s3" style="padding-top: 7pt;padding-left: 179pt;text-indent: 0pt;text-align: left;">(FILES?) <span class="p">assembles the items by adding them to the appropriate file’s</span></p><p class="s3" style="padding-left: 179pt;text-indent: 0pt;line-height: 107%;text-align: left;">COMS <span class="p">variable (see the File Variables section above). </span>(FILES?) <span class="p">does NOT write the file to secondary storage (disks or floppies). It only</span></p><p style="padding-left: 179pt;text-indent: 0pt;text-align: left;">upclates the global variables discussed in the File Variables section above.</p><p style="text-indent: 0pt;text-align: left;"><br/></p><p class="s3" style="padding-left: 107pt;text-indent: 0pt;text-align: left;">(MAKEFILE ’filename)</p><p style="padding-top: 7pt;padding-left: 179pt;text-indent: 0pt;line-height: 165%;text-align: left;">actually writes the file to secondary storage. Type:</p><p class="s9" style="padding-left: 34pt;text-indent: 0pt;line-height: 11pt;text-align: center;"><a name="a35">(MAKEFILE ’MY.FILE.NAME)</a></p><p style="padding-top: 7pt;padding-left: 179pt;text-indent: 0pt;text-align: left;">and the system will create the file. The function returns the full name of the file created. (i.e. <span class="s3">{DSK}MY.FlLE.NAME.; 1 </span>).</p><p style="text-indent: 0pt;text-align: left;"><br/></p><p style="padding-top: 4pt;padding-left: 179pt;text-indent: 0pt;line-height: 107%;text-align: left;">Files written to <span class="s3">(DSK) </span>are permanent files. They can be removed only by the user deleting them or by reformatting the disk.</p><p style="text-indent: 0pt;text-align: left;"><br/></p><p style="padding-left: 107pt;text-indent: 0pt;text-align: left;">Other file manipulation functions can be foun d in Chapter 4.</p></li></ol></li></ol></li><li><h1 style="padding-top: 3pt;padding-left: 60pt;text-indent: -25pt;text-align: left;"><a name="bookmark10">YOUR INIT FILE</a></h1><p style="padding-left: 35pt;text-indent: 0pt;line-height: 6pt;text-align: left;"><span><img width="640" height="8" alt="image" src="Image_066.png"/></span></p><p style="text-indent: 0pt;text-align: left;"><br/></p><p style="padding-left: 107pt;text-indent: 0pt;text-align: justify;">Lisp has a number of global variables that control the environment. Global variables make it easy to customize the environment to fit your needs. One way to do this is to</p><p style="padding-left: 107pt;text-indent: 0pt;line-height: 106%;text-align: justify;">develop an <span class="s3">INIT </span>file. This is a file that is loaded when you start an image. You can use it to set variables, load files, define functions, and any other things that you want to do to make the Medley environment suit you.</p><p style="text-indent: 0pt;text-align: left;"><br/></p><h2 style="padding-left: 35pt;text-indent: 0pt;text-align: left;"><a name="a36">Using the USERGREETFILES Variable                                                          </a></h2><p style="text-indent: 0pt;text-align: left;"><br/></p><p style="padding-top: 4pt;padding-left: 107pt;text-indent: 0pt;text-align: left;">As described in File Variables section of Chapter 11, each program file has a global Your <span class="s3">INIT </span>file could be called <span class="s3">INIT</span>, <span class="s3">INIT.LISP</span>, <span class="s3">INIT.USER</span>, or whatever the</p><p style="padding-left: 107pt;text-indent: 0pt;text-align: left;">convention is at your site. There is no default name preferred by the system, it just</p><p style="padding-left: 107pt;text-indent: 0pt;line-height: 106%;text-align: left;">looks for the files listed in the variable <span class="s3">USERGREETFILES </span>(see below). Check to see what the preference is at your site. Put this file in your directory. Your directory name should be the same as your login name. The <span class="s3">INIT </span>file is loaded by the function <span class="s3">GREET</span>. <span class="s3">GREET </span>is normally run when Medley is started. If this is not the case at your site, or you want</p><p style="padding-left: 107pt;text-indent: 0pt;text-align: left;">to use the machine and Medley has already been started, you can run the function</p><p class="s3" style="padding-left: 107pt;text-indent: 0pt;text-align: left;">GREET <span class="p">yourself. If your user name was, for example, </span>TURING <span class="p">, then you would type:</span></p><p class="s3" style="padding-top: 7pt;padding-left: 143pt;text-indent: 0pt;text-align: left;">(GREET ’TURING)</p><p style="padding-top: 7pt;padding-left: 107pt;text-indent: 0pt;text-align: left;">This does a number of things, including undoing any previous greeting operation,</p><p style="padding-left: 107pt;text-indent: 0pt;line-height: 107%;text-align: left;">loading the site init file, and loading your init file. Where <span class="s3">GREET </span>looks for your INIT file depends on the value of the variable <span class="s3">USERGREETFILES</span>. The value of this variable is set when the system’s <span class="s3">SYSOUT </span>file is made, so check its value at your site! For example, its value could be:</p><p style="text-indent: 0pt;text-align: left;"><br/></p><p style="padding-left: 197pt;text-indent: 0pt;text-align: left;"><span><img width="236" height="89" alt="image" src="Image_067.gif"/></span></p><p style="padding-top: 9pt;padding-left: 202pt;text-indent: 0pt;text-align: left;">Figure 8-1. Possible Value of <span class="s3">USERGREETFILES</span></p><p style="padding-top: 7pt;padding-left: 107pt;text-indent: 0pt;line-height: 106%;text-align: left;">In each place you see <span class="s3">&gt;USER&gt;</span>, the argument passed to <span class="s3">GREET </span>is substituted into the path. This is your login name if you are just starting Medley. For example, the first value in the list would have the system check to see whether there was a</p><p class="s3" style="padding-left: 107pt;text-indent: 0pt;line-height: 107%;text-align: left;">{DSK}&lt;LISPFlLES&gt;TURING&gt;INIT.LISP <span class="p">file. No error is generated if you do not have an </span>INIT <span class="p">file, and none of the files in </span>USERGREETFILES <span class="p">are foun d.</span></p><p style="text-indent: 0pt;text-align: left;"><br/></p><h2 style="padding-left: 35pt;text-indent: 0pt;text-align: left;"><a name="a37">Making an Init File                                                                                            </a></h2><p style="text-indent: 0pt;text-align: left;"><br/></p><p style="padding-top: 4pt;padding-left: 107pt;text-indent: 0pt;text-align: left;">As described in File Variables section of Chapter 11, each program file has a global</p><p style="padding-left: 107pt;text-indent: 0pt;line-height: 107%;text-align: left;">variable associated with it, whose name is formed by appending <span class="s3">COMS </span>to the end of the root filename. For any of the standard <span class="s3">INIT </span>file names, the variable <span class="s3">INITCOMS </span>is used. To set up an init file, begin by editing this variable. Type:</p><p class="s3" style="padding-top: 6pt;padding-left: 143pt;text-indent: 0pt;text-align: left;">(DV INITCOMS)</p><p class="s7" style="padding-top: 3pt;padding-left: 35pt;text-indent: 0pt;text-align: left;"> 8. YOUR INIT FILE                                                                                                                                                     </p><p style="text-indent: 0pt;text-align: left;"><br/></p><p style="padding-top: 4pt;padding-left: 107pt;text-indent: 0pt;text-align: left;">An SEdit window wiil appear. This window is the same as the one called with the</p><p style="padding-left: 107pt;text-indent: 0pt;line-height: 107%;text-align: left;">function <span class="s3">DF</span>, and described in the Using the List Structure Editor section in Chapter 7. This chapter assumes that you know how to use the SEdit structure editor .</p><p style="padding-top: 6pt;padding-left: 107pt;text-indent: 0pt;line-height: 107%;text-align: left;">The <span class="s3">COMS </span>variable is a list of lists. The first atom in each internal list specifies for the file package what types of items are in the list, and what it is to do with them. This</p><p style="padding-left: 107pt;text-indent: 0pt;line-height: 107%;text-align: left;">section will deal with three types of lists: <span class="s3">VARS</span>, <span class="s3">FILES</span>, and <span class="s3">P</span>. Please read about others in Chapter 17 of the <i>IRM</i>.</p><p style="padding-top: 6pt;padding-left: 107pt;text-indent: 0pt;text-align: justify;">Notice that inside the vars list, there is yet another list. The first item in the list is the name of the variable. It is bound to the value of the second item. There are many other variables that you can set by adding them to the VARS list. Some of these variables are described in Chapter 24, and many others can be foun d in the <i>IRM</i>.</p><p style="padding-top: 7pt;padding-left: 107pt;text-indent: 0pt;text-align: left;">If you want to automatically load files, that can be done in your init file also. For</p><p style="padding-left: 107pt;text-indent: 0pt;line-height: 107%;text-align: left;">example, if you always want to load tho Library file <span class="s3">SPY.LCOM </span>, you can load it by editing tho <span class="s3">INITCOMS </span>variable to list the appropriate file in the list starting with <span class="s3">FILES</span>:</p><p style="padding-top: 10pt;text-indent: 0pt;line-height: 11pt;text-align: center;">.</p><p style="text-indent: 0pt;line-height: 10pt;text-align: center;">.</p><p style="text-indent: 0pt;line-height: 11pt;text-align: center;">.</p><p class="s3" style="padding-left: 215pt;text-indent: 0pt;line-height: 11pt;text-align: left;">(FILES SPY)</p><p style="text-indent: 0pt;line-height: 10pt;text-align: center;">.</p><p style="text-indent: 0pt;line-height: 10pt;text-align: center;">.</p><p style="text-indent: 0pt;line-height: 11pt;text-align: center;">.</p><p style="padding-top: 5pt;padding-left: 111pt;text-indent: 0pt;text-align: center;">Figure 8-2. <span class="s3">INITCOMS </span>Changed to Load <span class="s3">SPY.LCOM </span>File</p><p style="padding-top: 7pt;padding-left: 107pt;text-indent: 0pt;text-align: left;">Other files can also be added by simply adding their names to this <span class="s3">FILES </span>list.</p><p style="padding-top: 7pt;padding-left: 107pt;text-indent: 0pt;text-align: left;">Another list that can appear in a <span class="s3">COMS </span>list begins with <span class="s3">P</span>. This list contains Lisp</p><p style="padding-left: 107pt;text-indent: 0pt;line-height: 107%;text-align: left;">expressions that are evaluated when the file is loaded. Do not put <span class="s3">DEFINEQ </span>expressions in this list. Define the function in the environment, and then save it on the file in the</p><p style="padding-left: 107pt;text-indent: 0pt;line-height: 11pt;text-align: left;">usual way (see Chapter 7).</p><p style="padding-top: 7pt;padding-left: 107pt;text-indent: 0pt;text-align: left;">One type of expression you might want to see here, however, is a <span class="s3">FONTCREATE </span>function (see Chapter 16). For example, of you want to use a Helvetica 12 BOLD font, and there is not a font descriptor for it normally in your environment, the appropriate call to <span class="s3">FONTCREATE </span>should be in the &quot;P&quot; list. The <span class="s3">INITCOMS </span>would look like this:</p><p style="text-indent: 0pt;line-height: 11pt;text-align: center;">.</p><p style="text-indent: 0pt;line-height: 10pt;text-align: center;">.</p><p style="text-indent: 0pt;line-height: 10pt;text-align: center;">.</p><p class="s3" style="padding-left: 214pt;text-indent: 0pt;line-height: 10pt;text-align: left;">(FILES SPY)</p><p class="s3" style="padding-left: 214pt;text-indent: 0pt;line-height: 10pt;text-align: left;">(P (FONTCREATE ’HELVETICA 12 ’BOLD))</p><p style="text-indent: 0pt;line-height: 10pt;text-align: center;">.</p><p style="text-indent: 0pt;line-height: 10pt;text-align: center;">.</p><p style="text-indent: 0pt;line-height: 11pt;text-align: center;">.</p><p style="text-indent: 0pt;text-align: left;"><br/></p><p style="padding-left: 111pt;text-indent: 0pt;text-align: center;">Figure 8-3. <span class="s3">INITCOMS </span>Edited to Include a  call to <span class="s3">FONTCREATE</span></p><p style="padding-top: 7pt;padding-left: 106pt;text-indent: 0pt;line-height: 106%;text-align: left;">To quit, exit from SEdit in the usual way. When you run the function <span class="s3">MAKEFILES </span>(see Chapter 7), be sure that you are connected to the directory (see Chapter 4) where the <span class="s3">INIT </span>file should appear. Now when <span class="s3">GREET </span>is run, your Init file will be loaded.</p><p style="text-indent: 0pt;text-align: left;"><br/></p><p style="text-indent: 0pt;text-align: left;"><br/></p><p style="padding-left: 35pt;text-indent: 0pt;line-height: 1pt;text-align: left;"><span><img width="665" height="1" alt="image" src="Image_068.png"/></span></p><p class="s8" style="padding-left: 35pt;text-indent: 0pt;text-align: left;">8-2 <span class="s6">Medley for the Novice, Release 2.0</span></p></li><li><h1 style="padding-top: 3pt;padding-left: 60pt;text-indent: -25pt;text-align: left;"><a name="bookmark11">MEDLEY FORGIVENESS: DWIM</a></h1><p style="padding-left: 35pt;text-indent: 0pt;line-height: 6pt;text-align: left;"><span><img width="640" height="8" alt="image" src="Image_069.png"/></span></p><p style="text-indent: 0pt;text-align: left;"><br/></p><p class="s3" style="padding-top: 15pt;padding-left: 107pt;text-indent: 0pt;text-align: left;">DWIM <span class="p">(Do What I Mean) is an Interlisp utility that makes life easier.</span></p><p style="text-indent: 0pt;text-align: left;"><br/></p><p class="s3" style="padding-left: 107pt;text-indent: 0pt;line-height: 107%;text-align: left;">DWIM <span class="p">tries to match unrecognized variable and function names to known ones. This allows Lisp to interpret minor typing errors or misspellings in a function, without</span></p><p style="padding-left: 107pt;text-indent: 0pt;line-height: 107%;text-align: left;">causing a break. Line 152 of Figure 9-1 illustrates how the misspelled <span class="s3">BANNANNA </span>was replaced by <span class="s3">BANANA </span>before the expression was evaluated.</p><p style="text-indent: 0pt;text-align: left;"><br/></p><p style="text-indent: 0pt;text-align: left;"><br/></p><p style="padding-left: 144pt;text-indent: 0pt;text-align: left;"><span><img width="445" height="193" alt="image" src="Image_070.gif"/></span></p><p style="text-indent: 0pt;text-align: left;"><br/></p><p style="padding-left: 219pt;text-indent: 0pt;text-align: left;">Figure 9-1. Examples of <span class="s3">DWIM </span>Features</p><p style="text-indent: 0pt;text-align: left;"><br/></p><p style="padding-left: 107pt;text-indent: 0pt;text-align: left;">Sometimes <span class="s3">DWIM </span>may alter an expression you didn’t want it to. This may occur if, for</p><p style="padding-left: 107pt;text-indent: 0pt;line-height: 106%;text-align: left;">example, a hyphenated function name (e.g., <span class="s3">(MY-FUNCTION) </span>) is misused. If the system does not recognize the function name, it may think you are trying to subtract &quot;<span class="s3">FUNCTION</span>&quot; from &quot;<span class="s3">MY</span>&quot;. <span class="s3">DWIM </span>also takes the liberty of updating the function, so it will</p><p style="padding-left: 107pt;text-indent: 0pt;text-align: left;">have to be fixed. However, this is as much a blessing as a curse, since it points out the misused expression!</p></li><li><h1 style="padding-top: 3pt;padding-left: 70pt;text-indent: -35pt;text-align: left;"><a name="bookmark12">BREAKPACKAGE</a></h1></li></ol><p style="padding-left: 35pt;text-indent: 0pt;line-height: 6pt;text-align: left;"><span><img width="640" height="8" alt="image" src="Image_071.png"/></span></p><p style="text-indent: 0pt;text-align: left;"><br/></p><p style="padding-top: 15pt;padding-left: 107pt;text-indent: 0pt;text-align: justify;">The Break Package is a part of Interlisp that makes debugging your programs much easier.</p><p style="text-indent: 0pt;text-align: left;"><br/></p><h2 style="padding-left: 35pt;text-indent: 0pt;text-align: left;"><a name="a38">Break Windows                                                                                                 </a></h2><p style="padding-top: 9pt;padding-left: 107pt;text-indent: 0pt;text-align: justify;">A break is a function either called by the programmer or by the system when an error has occurred. A separate window opens for each break. This window works much like the Executive Window, except for extra menus unique to a break window. Inside a</p><p style="padding-left: 107pt;text-indent: 0pt;text-align: justify;">break window, you can examine variables, look at the call stack at the time of the</p><p style="padding-left: 107pt;text-indent: 0pt;text-align: justify;">break, or call the editor. Each successive break opens a new window, where you can execute functions without disturbing the original system stack. These windows</p><p style="padding-left: 107pt;text-indent: 0pt;text-align: justify;">disappear when you resolve the break and return to a higher level.</p><p style="text-indent: 0pt;text-align: left;"><br/></p><h2 style="padding-left: 35pt;text-indent: 0pt;text-align: left;"><a name="a39">Break Package Example                                                                                  </a></h2><p style="text-indent: 0pt;text-align: left;"><br/></p><p style="padding-top: 4pt;padding-left: 107pt;text-indent: 0pt;text-align: left;">This example illustrates the basic break package functions. A more complete explanation of the breaking functions, and the break package will follow.</p><p style="text-indent: 0pt;text-align: left;"><br/></p><p style="padding-left: 107pt;text-indent: 0pt;text-align: left;">The correct definition of <span class="s3">FACTORIAL </span>is:</p><p class="s3" style="padding-top: 10pt;padding-left: 173pt;text-indent: -30pt;line-height: 106%;text-align: left;">(defun factorial (x) (if (zerop x)</p><p class="s3" style="padding-left: 203pt;text-indent: 0pt;line-height: 9pt;text-align: left;">1</p><p class="s3" style="padding-left: 197pt;text-indent: 0pt;line-height: 11pt;text-align: left;">(* x (factorial (1- x)))))</p><p style="text-indent: 0pt;text-align: left;"><br/></p><p style="padding-left: 107pt;text-indent: 0pt;line-height: 107%;text-align: left;">To demonstrate the break package, we have edited in an error: <span class="s3">DUMMY </span>in the IF statement is an unbound atom, it lacks a value.</p><p class="s3" style="padding-top: 9pt;padding-left: 173pt;text-indent: -30pt;line-height: 106%;text-align: left;">((defun factorial (x) (if (zerop x)</p><p class="s3" style="padding-left: 203pt;text-indent: 0pt;line-height: 9pt;text-align: left;">dummy</p><p class="s3" style="padding-left: 197pt;text-indent: 0pt;line-height: 11pt;text-align: left;">(* x (factorial (1- x)))))</p><p style="padding-top: 5pt;padding-left: 107pt;text-indent: 0pt;text-align: left;">The evaluated function</p><p style="text-indent: 0pt;text-align: left;"><br/></p><p class="s3" style="padding-left: 143pt;text-indent: 0pt;text-align: left;">(FACTORIAL 4)</p><p style="padding-top: 7pt;padding-left: 107pt;text-indent: 0pt;line-height: 106%;text-align: left;">should return 24, but the above function has an error. <span class="s3">DUMMY </span>is an unbound atom, an atom without an assigned value, so Lisp will &quot;break&quot;. A break window appears (Figure 10-1), that has all the functionality of the typing lisp expressions into the Executive</p><p style="padding-left: 107pt;text-indent: 0pt;text-align: left;">Window (The top level), in addition to the break menu functions. Each consecutive break will move to another level &quot;down&quot;.</p><p style="text-indent: 0pt;text-align: left;"><br/></p><p style="padding-left: 158pt;text-indent: 0pt;text-align: left;"><span><img width="403" height="124" alt="image" src="Image_072.gif"/></span></p><p style="text-indent: 0pt;text-align: left;"><br/></p><p style="padding-top: 4pt;padding-left: 247pt;text-indent: 0pt;text-align: left;">Figure 10-1. Break Window</p><p style="text-indent: 0pt;text-align: left;"><br/></p><p style="padding-left: 107pt;text-indent: 0pt;text-align: left;">Move the mouse cursor into the break window and hold down the middle mouse button.</p><p style="padding-left: 107pt;text-indent: 0pt;text-align: left;">The Break Menu will appear. Choose BT. Another menu, called the stack menu, will appear beside the break window. Choosing stack items from this menu will display</p><p style="padding-left: 107pt;text-indent: 0pt;text-align: justify;">another window. This window displays the function’s local variable bindings, or values (see Figure 10-2). This new window, titled FACTORlAL Frame, is an inspector window (see inspector Chapter 17).</p><p style="text-indent: 0pt;text-align: left;"><br/></p><p style="padding-left: 140pt;text-indent: 0pt;text-align: left;"><span><img width="455" height="230" alt="image" src="Image_073.gif"/></span></p><p style="text-indent: 0pt;text-align: left;"><br/></p><p style="padding-top: 4pt;padding-left: 208pt;text-indent: 0pt;text-align: left;">Figure 10-2. Back Trace of the System Stack</p><p style="text-indent: 0pt;text-align: left;"><br/></p><p style="padding-left: 107pt;text-indent: 0pt;text-align: left;">From the break window, you can call the editor for the function <span class="s3">FACTORIAL </span>by <span class="s3">middle- buttoning on the word FACTORIAL and selecting DisplayEdit from the menu that pops up</span>.</p><p style="padding-top: 7pt;padding-left: 107pt;text-indent: 0pt;text-align: left;">Replace the unbound atom <span class="s3">DUMMY </span>with 1. Exit the editor .</p><p style="padding-top: 7pt;padding-left: 107pt;text-indent: 0pt;text-align: left;">The function is fixed, and you can restart it from the last call on the stack. (It does not have to be started again from the Top Level.) To begin again from the last call on the stack, choose the last (top) <span class="s3">FACTORIAL </span>call in the BT menu. Select R<span class="s3">EVERT </span>from the middle button break window, or type it into the window. The break window will close, and a new one will appear with the message: <span class="s9">Breakpoint at FACTORIAL</span></p><p style="padding-top: 7pt;padding-left: 107pt;text-indent: 0pt;line-height: 107%;text-align: left;">To start execution with this last call to <span class="s3">FACTORIAL </span>, choose OK from the middle button break menu. The break window will disappear, and the correct answer, 24, will be</p><p style="padding-left: 107pt;text-indent: 0pt;line-height: 11pt;text-align: left;">returned to the top level.</p><ol id="l11"><li><p class="s6" style="padding-top: 3pt;padding-left: 456pt;text-indent: -456pt;text-align: right;">BREAKPACKAGE</p><p style="padding-left: 35pt;text-indent: 0pt;line-height: 1pt;text-align: left;"><span><img width="665" height="1" alt="image" src="Image_074.png"/></span></p><p style="text-indent: 0pt;text-align: left;"><br/></p><h2 style="padding-left: 35pt;text-indent: 0pt;text-align: left;"><a name="a40">Ways to Stop Execution from the Keyboard (Breaking Lisp)                      </a></h2><p style="text-indent: 0pt;text-align: left;"><br/></p><p style="padding-top: 4pt;padding-left: 107pt;text-indent: 0pt;text-align: left;">There are ways you can stop execution from the keyboard. They differ in terms of how much of the current operating state is saved:</p><p style="text-indent: 0pt;text-align: left;"><br/></p><p style="padding-top: 7pt;padding-left: 107pt;text-indent: 0pt;text-align: left;">Control-G Provides you with a menu of processes to interrupt. Your process will</p><p style="padding-left: 179pt;text-indent: 0pt;line-height: 107%;text-align: left;">usually be &quot;<span class="s3">EXEC</span>&quot;. Choose it to break your process. A break window will then appear.</p><p style="padding-top: 9pt;padding-left: 179pt;text-indent: -71pt;text-align: left;">Control-B Causes your function to break, saves the stack, then displays a break window with all the usual break functions. For information on other interrupt characcers, see Chapter 30 in the <i>IRM</i>.</p><p style="text-indent: 0pt;text-align: left;"><br/></p><h2 style="padding-left: 35pt;text-indent: 0pt;text-align: left;"><a name="a41">Break Menu                                                                                                       </a></h2><p style="text-indent: 0pt;text-align: left;"><br/></p><p style="padding-top: 4pt;padding-left: 107pt;text-indent: 0pt;text-align: left;">Move the mouse cursor into the break window. Hold the middle button down, and a new menu will pop up, like the one in Figure 10-3.</p><p style="text-indent: 0pt;text-align: left;"><br/></p><p style="padding-left: 286pt;text-indent: 0pt;text-align: left;"><span><img width="69" height="110" alt="image" src="Image_075.gif"/></span></p><p style="text-indent: 0pt;text-align: left;"><br/></p><p style="padding-top: 4pt;padding-left: 191pt;text-indent: 0pt;text-align: left;">Figure 10-3. Middle Button Menu in Break window</p><p style="padding-top: 7pt;padding-left: 107pt;text-indent: 0pt;text-align: left;">Five of the selections are particularly important when just starting to use Medley:</p><p class="s3" style="padding-top: 7pt;padding-left: 107pt;text-indent: 0pt;text-align: left;">BT <span class="p">Back Trace displays the stack in a menu beside the break window. Back</span></p><p style="padding-left: 155pt;text-indent: 0pt;text-align: left;">Trace is a very powerful debugging tool. Each function call is placed on the</p><p style="padding-left: 155pt;text-indent: 0pt;text-align: left;">stack and removed when the execution of that function is complete. Choosing an item on the stack will open another window displaying that item’s local</p><p style="padding-left: 155pt;text-indent: 0pt;text-align: left;">variables and their bindings. This is an inspector window that offers all the power of the inspector. (For details, see the section on the Inspector, Chapter 17.)</p><p class="s3" style="padding-top: 7pt;padding-left: 155pt;text-indent: -48pt;line-height: 107%;text-align: left;">? = <span class="p">Before you use this menu option, display the stack by choosing BT from this menu, and choose a function from it. Now, choose ?=. It will display the</span></p><p style="padding-left: 155pt;text-indent: 0pt;text-align: left;">current values of the arguments to the function that has been chosen from the stack.</p><p class="s2" style="padding-top: 6pt;padding-left: 155pt;text-indent: -48pt;text-align: left;"><span class="p"> Move back to the previous break window, or if there is no other break window, back to the top level, the Executive Window.</span></p><p class="s3" style="padding-top: 7pt;padding-left: 155pt;text-indent: -48pt;text-align: justify;">REVERT <span class="p">Move the point of execution back to a specified function call before the error. The function to revert back to is, by default, the last function call before the break. If, however, a different function call is chosen on the BT menu, revert will go back to the start of this function and open a new break window. The</span></p><p style="padding-left: 155pt;text-indent: 0pt;text-align: justify;">items on the stack above the new starting place will no longer exist. This is used in the tutorial example (see the Break Package Example section above).</p><p style="text-indent: 0pt;text-align: left;"><br/></p><p class="s3" style="padding-top: 4pt;padding-left: 155pt;text-indent: -48pt;line-height: 107%;text-align: left;">OK <span class="p">Continue execution from the point of the break. This is useful if you have a simple error, i.e., an unbound variable or a nonnumeric argument to an</span></p><p style="padding-left: 155pt;text-indent: 0pt;text-align: left;">arithmetic function. Reset the variable in the break window, then select OK. (see the Break Package Example section above).</p><p style="padding-top: 9pt;padding-left: 107pt;text-indent: 0pt;text-align: left;">In addition to being available on the middle button menu of the break window, all of these functions can be typed directly into the window. Only BT behaves differently</p><p style="padding-left: 107pt;text-indent: 0pt;text-align: left;">when typed. It types the stack into the trace window instead of opening a new window.)</p><p style="text-indent: 0pt;text-align: left;"><br/></p><h2 style="padding-left: 35pt;text-indent: 0pt;text-align: left;"><a name="a42">Returning to Top Level                                                                                    </a></h2><p style="padding-top: 9pt;padding-left: 107pt;text-indent: 0pt;text-align: left;">Typing Control-D will immediately take you to the top level from any break window.</p><p style="padding-left: 107pt;text-indent: 0pt;text-align: left;">The functions called before the break will stop, but any side effect s of the function that occurred before the break remain. For example, if a function set a global variable before it broke, the variable will still be set after typing Control-D.</p></li><li><h1 style="padding-top: 3pt;padding-left: 70pt;text-indent: -35pt;text-align: left;"><a name="bookmark13">WHAT TO DO IF ...</a></h1><p style="padding-left: 35pt;text-indent: 0pt;line-height: 6pt;text-align: left;"><span><img width="640" height="8" alt="image" src="Image_076.png"/></span></p><p style="text-indent: 0pt;text-align: left;"><br/></p><p style="padding-left: 107pt;text-indent: 0pt;text-align: left;">The purpose of this chapter is to explain what to do in some of the problems commonly experienced by Medley users.</p><p style="text-indent: 0pt;text-align: left;"><br/></p><h4 style="padding-left: 71pt;text-indent: 0pt;text-align: left;"><a name="a43">Executive Window turns black</a></h4><p style="padding-top: 7pt;padding-left: 107pt;text-indent: 0pt;text-align: left;">An example is shown in Figure 11-1.</p><p style="padding-top: 7pt;padding-left: 107pt;text-indent: 0pt;text-align: left;">Press any key to unfreeze the window and continue. This pause happens when the command you just typed causes enough information to be printed to fill the window. It gives you a chance to read that one window of text before moving on.</p><p style="text-indent: 0pt;text-align: left;"><br/></p><p style="padding-left: 180pt;text-indent: 0pt;text-align: left;"><span><img width="347" height="173" alt="image" src="Image_077.gif"/></span></p><p style="text-indent: 0pt;text-align: left;"><br/></p><p style="padding-top: 6pt;padding-left: 111pt;text-indent: 0pt;text-align: center;">Figure 11-1.  Blackened Executive Window</p><p style="text-indent: 0pt;text-align: left;"><br/></p><h4 style="padding-left: 71pt;text-indent: 0pt;text-align: left;"><a name="a44">You closed the Executive Window</a></h4><p style="padding-top: 7pt;padding-left: 107pt;text-indent: 0pt;text-align: left;">Open another from the Background Menu.</p><p style="text-indent: 0pt;text-align: left;"><br/></p><h4 style="padding-left: 71pt;text-indent: 0pt;text-align: left;"><a name="a45">Mouse disappears</a></h4><p style="padding-top: 7pt;padding-left: 107pt;text-indent: 0pt;text-align: left;">Type <span class="s9">(CURSOR T) </span>in the Executive Window. The cursor will reappear.</p><p style="text-indent: 0pt;text-align: left;"><br/></p><h4 style="padding-left: 71pt;text-indent: 0pt;text-align: left;"><a name="a46">Second window appears</a></h4><p style="padding-top: 7pt;padding-left: 107pt;text-indent: 0pt;text-align: left;">This probably happens because you made a typing mistake, as in Figure 11-2.</p><p style="text-indent: 0pt;text-align: left;"><br/></p><p style="padding-left: 211pt;text-indent: 0pt;text-align: left;"><span><img width="269" height="81" alt="image" src="Image_078.gif"/></span></p><p style="text-indent: 0pt;text-align: left;"><br/></p><p style="padding-top: 6pt;padding-left: 111pt;text-indent: 0pt;text-align: center;">Figure 11-2.  Second Window Appears (Break Window) after Typing Error Made</p><p style="padding-top: 7pt;padding-left: 107pt;text-indent: 0pt;text-align: left;">Type a Control-D by simultaneously pressing the Control key and the &quot;D&quot;. This aborts the error condition, returning control to the Executive Window.</p><p style="text-indent: 0pt;text-align: left;"><br/></p><h4 style="padding-left: 71pt;text-indent: 0pt;text-align: left;"><a name="a47">You keep getting beeped at</a></h4><p style="padding-top: 7pt;padding-left: 107pt;text-indent: 0pt;text-align: left;">Usually the beeping means that Medley want input from you. Look for the flashing</p><p style="padding-left: 107pt;text-indent: 0pt;text-align: left;">caret. It will usually be preceeded by some kind of prompt, indicating what you should type.</p><p style="text-indent: 0pt;text-align: left;"><br/></p><h4 style="padding-top: 4pt;padding-left: 71pt;text-indent: 0pt;text-align: left;"><a name="a48">You cannot delete the first letter</a></h4><p style="padding-top: 7pt;padding-left: 107pt;text-indent: 0pt;text-align: left;">of the filename you are typing to <span class="s3">(FILES?) </span>. Type Control-E (error) You will get a linefeed and <span class="s2"></span> printed to the window. Now type the correct filename.</p><h4 style="padding-top: 10pt;padding-left: 71pt;text-indent: 0pt;text-align: left;"><a name="a49">Your function is just sitting there</a></h4><p style="padding-top: 7pt;padding-left: 107pt;text-indent: 0pt;text-align: justify;">It is not returning a value, and you think that your program may be in an infinite loop or is having some other major problem. You can see what process is currently running by typing Control-T, or you could interrupt the process by typing Control-E.</p><p style="text-indent: 0pt;text-align: left;"><br/></p><h4 style="padding-left: 71pt;text-indent: 0pt;text-align: left;"><a name="a50">A Break Window appears</a></h4><p style="padding-top: 7pt;padding-left: 107pt;text-indent: 0pt;text-align: justify;">If the Break Window look something like that shown in Figure 11-3, you are trying to save a file, but there is not enough space on the hard disk.</p><p style="text-indent: 0pt;text-align: left;"><br/></p><p style="padding-left: 161pt;text-indent: 0pt;text-align: left;"><span><img width="400" height="120" alt="image" src="Image_079.gif"/></span></p><p style="text-indent: 0pt;text-align: left;"><br/></p><p style="padding-top: 6pt;padding-left: 149pt;text-indent: 0pt;text-align: left;">Figure 11-3. Break Window Caused by Insufficient Space in Save File</p><p style="padding-top: 6pt;padding-left: 107pt;text-indent: 0pt;text-align: justify;">Exit from the Break Window by typing an up arrow <span class="s2"></span> followed by a Return. Delete old versions of files, and any other files you do not need. Then try again to save the file</p><p style="text-indent: 0pt;text-align: left;"><br/></p><h4 style="padding-left: 71pt;text-indent: 0pt;text-align: left;"><a name="a51">You have run out of space</a></h4><p style="padding-top: 7pt;padding-left: 107pt;text-indent: 0pt;line-height: 107%;text-align: left;">Generally, a Break Window has appeared. The <span class="s3">GAINSPACE </span>function allows you to delete non-essential data structures. To use it, type:</p><p class="s9" style="padding-top: 6pt;padding-left: 143pt;text-indent: 0pt;text-align: left;"><a name="a52">(GAINSPACE)</a></p><p style="padding-top: 7pt;padding-left: 107pt;text-indent: 0pt;text-align: left;">into the Executive Window. Answer <span class="s3">N </span>to all questions except the following:</p><ul id="l12"><li><p style="padding-top: 7pt;padding-left: 142pt;text-indent: -33pt;text-align: left;">Delete edit history</p></li><li><p style="padding-top: 7pt;padding-left: 142pt;text-indent: -33pt;text-align: left;">Delete history list</p></li><li><p style="padding-top: 7pt;padding-left: 142pt;text-indent: -33pt;text-align: left;">Delete values of old variables</p></li><li><p style="padding-top: 7pt;padding-left: 142pt;text-indent: -33pt;text-align: left;">Delete your <span class="s3">MASTERSCOPE </span>database</p></li><li><p style="padding-top: 7pt;padding-left: 107pt;text-indent: 0pt;line-height: 165%;text-align: left;">Delete information for undoing your greeting. Save your work and reload Lisp as soon as possible.</p><h4 style="padding-top: 3pt;padding-left: 71pt;text-indent: 0pt;text-align: left;"><a name="a53">A </a><span class="s9">redefined </span>message appears</h4><p class="s3" style="padding-top: 7pt;padding-left: 107pt;text-indent: 0pt;text-align: left;"><span class="p">The message </span>(<span class="s4">Some.Crucial.Function.Or.Variable </span>redefined) <span class="p">appears in the</span></p><p style="padding-left: 107pt;text-indent: 0pt;text-align: left;">Executive Window (see Figure 11-4). The function, variable, or other property has been &quot;smashed&quot; (i.e., its original definition has been changed). If this is not what you</p><p style="padding-left: 107pt;text-indent: 0pt;text-align: left;">wanted, type <span class="s9">UNDO </span>immediately!</p><ol id="l13"><li><p class="s6" style="padding-top: 3pt;padding-left: 455pt;text-indent: -455pt;text-align: right;">WHAT TO DO IF...</p><p style="padding-left: 35pt;text-indent: 0pt;line-height: 1pt;text-align: left;"><span><img width="665" height="1" alt="image" src="Image_080.png"/></span></p><p style="text-indent: 0pt;text-align: left;"><br/></p><p style="padding-left: 202pt;text-indent: 0pt;text-align: left;"><span><img width="289" height="168" alt="image" src="Image_081.gif"/></span></p><p style="text-indent: 0pt;text-align: left;"><br/></p><p style="padding-top: 4pt;padding-left: 238pt;text-indent: 0pt;text-align: left;">Figure 11-4. <span class="s3">CAR redefined!</span></p><p style="text-indent: 0pt;text-align: left;"><br/></p><h4 style="padding-left: 71pt;text-indent: 0pt;text-align: left;"><a name="a54">UNBOUND ATOM</a></h4><p style="padding-top: 7pt;padding-left: 107pt;text-indent: 0pt;text-align: justify;">If this occurs, you probably just typed something wrong, or you passed an argument that should have been quoted to a function.</p><p style="text-indent: 0pt;text-align: left;"><br/></p><h4 style="padding-left: 71pt;text-indent: 0pt;text-align: left;"><a name="a55">UNDEFINED CAR OF FORM</a></h4><p style="padding-top: 7pt;padding-left: 107pt;text-indent: 0pt;line-height: 106%;text-align: justify;">First, look at what caused the error. If the <span class="s3">CAR </span>of the form is a list, then you typed something wrong. If it is an atom, then perhaps that atom does not have a function associated with it. If it is a CLISP word like <span class="s3">if </span>or <span class="s3">for</span>, then <span class="s3">DWIM </span>may have been</p><p style="padding-left: 107pt;text-indent: 0pt;text-align: justify;">turned off (see Chapter 9). Type <span class="s9">(DWIM ’C) </span>to reenable DWIM.</p><p style="text-indent: 0pt;text-align: left;"><br/></p><h4 style="padding-left: 71pt;text-indent: 0pt;text-align: left;"><a name="a56">You have traced APPLY</a></h4><p style="padding-top: 7pt;padding-left: 107pt;text-indent: 0pt;text-align: justify;">and your screen is spewing out information about everything going on in the</p><p style="padding-left: 107pt;text-indent: 0pt;line-height: 107%;text-align: left;">environment. Type Control E, and type <span class="s9">(UNBREAK ’APPLY) </span>before reeturning to the Executive.</p><p style="text-indent: 0pt;text-align: left;"><br/></p><p style="text-indent: 0pt;text-align: left;"><br/></p><p style="padding-left: 209pt;text-indent: 0pt;text-align: left;">[This page intentionally left blank]</p></li><li><h1 style="padding-top: 3pt;padding-left: 70pt;text-indent: -35pt;text-align: left;"><a name="bookmark14">WINDOWS AND REGIONS</a></h1><p style="padding-left: 35pt;text-indent: 0pt;line-height: 6pt;text-align: left;"><span><img width="640" height="8" alt="image" src="Image_082.png"/></span></p><p style="text-indent: 0pt;text-align: left;"><br/></p><h2 style="padding-top: 14pt;padding-left: 35pt;text-indent: 0pt;text-align: left;"><a name="a57">Windows                                                                                                            </a></h2><p style="text-indent: 0pt;text-align: left;"><br/></p><p style="padding-top: 4pt;padding-left: 107pt;text-indent: 0pt;text-align: left;">Windows have two basic parts: an area on the screen containing a collection of pixels,</p><p style="padding-left: 107pt;text-indent: 0pt;text-align: left;">and a property list. The window properties determine how the window looks, the menus that can be accessed from it, what should happen when the mouse is inside the window and a mouse button is pressed, and soon.</p><p style="text-indent: 0pt;text-align: left;"><br/></p><h3 style="padding-left: 71pt;text-indent: 0pt;text-align: left;"><a name="a58">CREATEW</a></h3><p style="padding-top: 8pt;padding-left: 107pt;text-indent: 0pt;text-align: left;">Some of the window’s properties can be specified when a window is created with the function <span class="s3">CREATE</span>W. In particular, it is easy to specify the size and position of the</p><p style="padding-left: 107pt;text-indent: 0pt;text-align: left;">window; its title; and the width of its borders.</p><p class="s3" style="padding-top: 7pt;padding-left: 143pt;text-indent: 0pt;text-align: left;">(CREATEW <span class="s4">region title borderw’idth</span>)</p><p style="text-indent: 0pt;text-align: left;"><br/></p><p style="padding-left: 106pt;text-indent: 0pt;line-height: 106%;text-align: left;">Region is a record (named <span class="s3">REGION </span>, with the fields <span class="s3">left</span>, <span class="s3">bottom </span>, <span class="s3">width</span>, and <span class="s3">height) </span>or a list. A region describes a rectangular area on the screen, the window’s dimensions and position. The fields left and bottom refer to the position of the bottom leff corner of</p><p style="padding-left: 107pt;text-indent: 0pt;text-align: justify;">the region on the screen. Wi dth and height refer to the width and height of the region. The usable space inside the window will be smaller than the width and height, because some of the window’s region is consumed by the title bar, and some is taken by the</p><p style="padding-left: 107pt;text-indent: 0pt;text-align: justify;">borders.</p><p style="text-indent: 0pt;text-align: left;"><br/></p><p style="padding-left: 107pt;text-indent: 0pt;text-align: justify;">Title is a string that will be placed in the title bar of the window.</p><p style="text-indent: 0pt;text-align: left;"><br/></p><p style="padding-left: 107pt;text-indent: 0pt;text-align: justify;">Borderwidth is the width of the border around the exterior of the window, in number of pixels.</p><p style="text-indent: 0pt;text-align: left;"><br/></p><p style="padding-left: 107pt;text-indent: 0pt;text-align: justify;">For example, typing:</p><p class="s3" style="padding-top: 7pt;padding-left: 173pt;text-indent: -30pt;text-align: left;">(SETQ MY.WINDOW (CREATEW (CREATEREGION l00 150 300 200) &quot;THIS IS MY OWN WINDOW&quot;)</p><p style="padding-top: 9pt;padding-left: 106pt;text-indent: 0pt;text-align: left;">or</p><p class="s3" style="padding-top: 7pt;padding-left: 142pt;text-indent: 0pt;text-align: left;">(SETQ MY.WINDOW (CREATEW</p><p class="s3" style="padding-top: 1pt;padding-left: 173pt;text-indent: 6pt;line-height: 88%;text-align: left;">(CREATEW ’(100 150 300 200) &quot;THIS IS MY OWN WINDOW&quot;)</p><p style="padding-top: 9pt;padding-left: 107pt;text-indent: 0pt;text-align: left;">produces a window with a default borderwidth. Note that you did not need to specify all the window’s properties (see Figure 12-1).</p><p style="text-indent: 0pt;text-align: left;"><br/></p><p style="padding-left: 114pt;text-indent: 0pt;text-align: left;"><span><img width="460" height="337" alt="image" src="Image_083.gif"/></span></p><p style="text-indent: 0pt;text-align: left;"><br/></p><p style="padding-top: 4pt;padding-left: 237pt;text-indent: 0pt;text-align: left;">Figure 12-1. Creating a Window</p><p style="text-indent: 0pt;text-align: left;"><br/></p><p style="padding-top: 7pt;padding-left: 107pt;text-indent: 0pt;line-height: 107%;text-align: left;">In fact, if <span class="s3">(CREATEW) </span>is called without specifying a region, you will be prompted to sweep out a region for the window (see Chapter 10)</p><p style="text-indent: 0pt;text-align: left;"><br/></p><h3 style="padding-left: 71pt;text-indent: 0pt;text-align: left;"><a name="a59">WlNDOWPROP</a></h3><p style="padding-top: 8pt;padding-left: 107pt;text-indent: 0pt;text-align: left;">The function to access or add to any property of a window’s property list is</p><p class="s3" style="padding-left: 107pt;text-indent: 0pt;text-align: left;">WINDOWPROP<span class="p">.</span></p><p class="s3" style="padding-top: 7pt;padding-left: 143pt;text-indent: 0pt;text-align: left;">(WINDOWPROP <span class="s4">window property </span><span class="p">&lt;value&gt;</span>)</p><p style="text-indent: 0pt;text-align: left;"><br/></p><p style="padding-left: 107pt;text-indent: 0pt;text-align: left;">When you use <span class="s3">WINDOWPROP </span>with only two arguments—window and property—it</p><p style="padding-left: 107pt;text-indent: 0pt;text-align: left;">returns the value of the window’s property. When you use <span class="s3">WINDOWPROP </span>with all three</p><p style="padding-left: 107pt;text-indent: 0pt;text-align: left;">arguments—window, property and value—it sets the value the window’s property to the value you inserted for the third argument.</p><p style="text-indent: 0pt;text-align: left;"><br/></p><p style="padding-left: 107pt;text-indent: 0pt;text-align: left;">For example, consider the window, <span class="s3">MY WINDOW </span>, created using <span class="s3">(CREATEW)</span>. <span class="s3">TITLE </span>and</p><p class="s3" style="padding-left: 107pt;text-indent: 0pt;text-align: left;">REGION <span class="p">are both properties. Type</span></p><p class="s3" style="padding-top: 7pt;padding-left: 143pt;text-indent: 0pt;text-align: left;">(WINDOWPROP MY.WINDOW ’TITLE)</p><p style="padding-top: 7pt;padding-left: 107pt;text-indent: 0pt;line-height: 107%;text-align: left;">and the value of <span class="s3">MY.WlNDOW</span>’s <span class="s3">TITLE </span>property is returned, <span class="s3">&quot;THIS 1S MY OWN WINDOW&quot;</span>. To change the title, use the <span class="s3">WINDOWPROP </span>function, and give it the window, the property title, and the new title of the window.</p><p class="s3" style="padding-top: 6pt;padding-left: 143pt;text-indent: 0pt;text-align: left;">(WINDOWPROP MY.WINDOW ’TITLE &quot;MY FIRST WINDOW&quot;)</p><p style="padding-top: 7pt;padding-left: 107pt;text-indent: 0pt;text-align: left;">automatically changes the title and automatically updates the window. Now the window looks like Figure 12-2.</p><p style="text-indent: 0pt;text-align: left;"><br/></p><p style="text-indent: 0pt;text-align: left;"><br/></p><p style="padding-left: 116pt;text-indent: 0pt;text-align: left;"><span><img width="456" height="342" alt="image" src="Image_084.gif"/></span></p><p style="text-indent: 0pt;text-align: left;"><br/></p><p style="padding-top: 4pt;padding-left: 215pt;text-indent: 0pt;text-align: left;">Figure 12-2. <span class="s3">TITLE </span>is a Window Property</p><p style="padding-top: 7pt;padding-left: 107pt;text-indent: 0pt;line-height: 107%;text-align: left;">Altering the region of the window, <span class="s3">MY.WINDOW</span>, is also be done with <span class="s3">WINDOWPROP</span>, in the same way you changed the title. (Changing either of the first two numbers of a region</p><p style="padding-left: 107pt;text-indent: 0pt;text-align: left;">changes the position of the window on the screen. Changing either of the last two numbers changes the dimensions of the window itself.)</p><p style="text-indent: 0pt;text-align: left;"><br/></p><h3 style="padding-left: 71pt;text-indent: 0pt;text-align: left;"><a name="a60">Getting Windows to Do Things</a></h3><p style="padding-top: 8pt;padding-left: 107pt;text-indent: 0pt;line-height: 107%;text-align: left;">Four basic window properties will be discussed here: <span class="s3">CURSORINFN </span>, <span class="s3">CURSOROUTFN</span>, <span class="s3">CURSORMOVEDFN</span>, and <span class="s3">BUTTONEVENTFN</span>.</p><p style="padding-top: 7pt;padding-left: 107pt;text-indent: 0pt;line-height: 107%;text-align: left;">A function can be stored as the value of the <span class="s3">CURSORlNFN </span>property of a window. It is called when the mouse cursor is moved into that window.</p><p style="padding-top: 6pt;padding-left: 48pt;text-indent: 0pt;text-align: center;">Look at the following  example:</p><p style="text-indent: 0pt;text-align: left;"><br/></p><ol id="l14"><li><p style="padding-left: 118pt;text-indent: -11pt;text-align: left;">First, create a window called <span class="s3">MY.WINDOW</span>. Type:</p><p class="s3" style="padding-top: 7pt;padding-left: 125pt;text-indent: 0pt;line-height: 11pt;text-align: left;">(SETQ MY.WINDQW</p><p class="s3" style="padding-left: 155pt;text-indent: 0pt;line-height: 10pt;text-align: left;">(CREATEW</p><p class="s3" style="padding-left: 172pt;text-indent: 0pt;line-height: 88%;text-align: left;">(CREATEREGION 200 200 200 200) &quot;THIS WINDOW WILL SCREAM!&quot;))</p><p style="padding-top: 6pt;padding-left: 49pt;text-indent: 0pt;text-align: center;">This creates a window.</p><p style="text-indent: 0pt;text-align: left;"><br/></p></li><li><p style="padding-left: 125pt;text-indent: -17pt;line-height: 107%;text-align: left;">Now define the function <span class="s3">SCREAME </span>R. It will be stored on the property <span class="s3">CURSOR1NFN </span>. (Notice that this function has one argument, <span class="s3">WlNDOWNAM </span>E. All functions called from the property <span class="s3">CURSOR1NFN </span>are passed the window it was called from. So the value of <span class="s3">MY.WINDOW </span>is bound to <span class="s3">WINDOWNAME</span>. When it is called, <span class="s3">SCREAME</span>R simply rings</p><p style="padding-left: 125pt;text-indent: 0pt;text-align: left;">bells.</p><p style="text-indent: 0pt;text-align: left;"><br/></p><p class="s3" style="padding-top: 6pt;padding-left: 142pt;text-indent: -18pt;line-height: 88%;text-align: left;">(DEFINEQ (SCREAMER (WINDOWNAME) (RINGBELLS)</p><p class="s3" style="padding-left: 142pt;text-indent: 0pt;line-height: 88%;text-align: left;">(PROMPTPRINT &quot;YAY - IT WORKS!&quot;) (RINGBELLS)))</p><p style="text-indent: 0pt;text-align: left;"><br/></p></li><li><p style="padding-left: 125pt;text-indent: -17pt;line-height: 107%;text-align: left;">Now, alter that window’s <span class="s3">CURSORINFN </span>property, so that the system calls the function <span class="s3">SCREAMER </span>at the appropriate time. Type:</p><p class="s3" style="padding-top: 7pt;padding-left: 155pt;text-indent: -30pt;line-height: 88%;text-align: left;">(WINDOWPROP MY.WINDOW ’CURSORINFN (FUNCTION SCREAMER))</p></li><li><p style="padding-top: 6pt;padding-left: 124pt;text-indent: -17pt;text-align: left;">After this, when you move the mouse cursor into <span class="s3">MY.WlNDOW </span>, the <span class="s3">CURSORINFN</span></p><p style="padding-left: 125pt;text-indent: 0pt;text-align: left;">property’s function is called, and it rings bells twice.</p><p style="text-indent: 0pt;text-align: left;"><br/></p><p class="s3" style="padding-left: 107pt;text-indent: 0pt;line-height: 107%;text-align: left;">CURSORINFN <span class="p">is one of the many window properties that come with each window - just as </span>REGION <span class="p">and </span>TITLE <span class="p">did. Other properties include:</span></p><p class="s3" style="padding-top: 7pt;padding-left: 203pt;text-indent: -96pt;line-height: 107%;text-align: left;">CURSOROUTFN <span class="p">The function that is the value of this property is executed when the cursor is moved out of a window.</span></p><p class="s3" style="padding-top: 6pt;padding-left: 203pt;text-indent: -96pt;line-height: 107%;text-align: left;">CURSORMOVEDFN <span class="p">The function that is the value of this property is executed when the cursor is moved while it is inside the window.</span></p><p class="s3" style="padding-top: 6pt;padding-left: 203pt;text-indent: -96pt;line-height: 107%;text-align: left;">BUTTONEVENTFN <span class="p">The function that is the value of this property is executed when either the left or middle mouse buttons are pressed (or released).</span></p><p style="text-indent: 0pt;text-align: left;"><br/></p><p style="padding-left: 107pt;text-indent: 0pt;text-align: left;">Figure 12-3 shows <span class="s3">MY.WlNDOW</span>’s properties. Notice that the <span class="s3">CURSORINFN </span>has the</p><p style="padding-left: 107pt;text-indent: 0pt;line-height: 107%;text-align: left;">function <span class="s3">SCREAMER </span>stored in it. The properties were shown in this window using the function <span class="s3">INSPECT</span>. <span class="s3">INSPECT </span>is covered in Chapter 17.</p><p style="text-indent: 0pt;text-align: left;"><br/></p><p style="padding-left: 136pt;text-indent: 0pt;text-align: left;"><span><img width="400" height="382" alt="image" src="Image_085.gif"/></span></p><p style="text-indent: 0pt;text-align: left;"><br/></p><p style="padding-left: 140pt;text-indent: 0pt;text-align: left;">Figure 12-3. Inspecting <span class="s3">MY.WINDOW </span>for Mouse-Related Window Properties</p><p style="text-indent: 0pt;text-align: left;"><br/></p><p style="padding-top: 4pt;padding-left: 107pt;text-indent: 0pt;line-height: 107%;text-align: left;">You can define functions for the values of the properties <span class="s3">CURSOROUTFN </span>and <span class="s3">CURSORMOVEDFN </span>in much the same way as you did for <span class="s3">CURSORINFN</span>. The function that is the value of the property <span class="s3">BUTTONEVENTF </span>N, however, can be specialized to respond in different ways, depending on which mouse button is pressed. This is explained in the</p><p style="padding-left: 107pt;text-indent: 0pt;line-height: 11pt;text-align: left;">next section.</p><p style="text-indent: 0pt;text-align: left;"><br/></p><h3 style="padding-left: 71pt;text-indent: 0pt;text-align: left;"><a name="a61">BUTTONEVENTFN</a></h3><p style="text-indent: 0pt;text-align: left;"><br/></p><p class="s3" style="padding-left: 107pt;text-indent: 0pt;line-height: 106%;text-align: left;">BUTTONEVENTFN <span class="p">is another property of a window. The function that is stored as the value of this property is called when tho mouse is inside the window, and a mouse button is pressed. As an example of how to use it, type:</span></p><p class="s3" style="padding-top: 7pt;padding-left: 173pt;text-indent: -30pt;line-height: 88%;text-align: left;">(WINDOWPROP MY.WINDOW ’BUTTONEVENTFN (FUNCTION SCREAMER))</p><p style="padding-top: 6pt;padding-left: 107pt;text-indent: 0pt;line-height: 106%;text-align: left;">When the mouse cursor is moved into the window, bells will ring because of the <span class="s3">CURS0RlNFN</span>, but it will also ring bells when either the left or middle mouse button is pressed. Notice that the right mouse button functions as it usually does, with the</p><p style="padding-left: 106pt;text-indent: 0pt;line-height: 106%;text-align: left;">window manipulation menu. If only the left button should evoke the function <span class="s3">SCREAMER</span>, then the function can be written to do just this, using the function <span class="s3">MOUSESTATE</span>, and a form that only <span class="s3">MOUSESTATE </span>understands, <span class="s3">ONLY</span>. For example:</p><p class="s3" style="padding-top: 6pt;padding-left: 143pt;text-indent: 0pt;line-height: 11pt;text-align: left;">(DEFINEQ</p><p class="s3" style="padding-left: 173pt;text-indent: 0pt;line-height: 10pt;text-align: left;">(SCREAMER2 (WINDOWNAME)</p><p class="s3" style="padding-left: 233pt;text-indent: -30pt;line-height: 88%;text-align: left;">(if (MOUSESTATE (ONLY LEFT)) then (RINGBELLS))))</p><p style="text-indent: 0pt;text-align: left;"><br/></p><p style="padding-left: 107pt;text-indent: 0pt;line-height: 107%;text-align: left;">In addition to <span class="s3">(ONLY LEFT)</span>, <span class="s3">MOUSESTATE </span>can also be passed <span class="s3">(ONLY MIDDLE) </span>, <span class="s3">(ONLY RIGHT) </span>or combinations of these (e.g. <span class="s3">(OR (ONLY LEFT) (ONLY MIDDLE))</span>). You do not need to use <span class="s3">ONLY </span>with <span class="s3">MOUSESTATE </span>for every application. <span class="s3">ONLY </span>means that that</p><p style="padding-left: 107pt;text-indent: 0pt;text-align: left;">button is pressed and no other.</p><p style="padding-top: 7pt;padding-left: 107pt;text-indent: 0pt;text-align: left;">If you do write a function using <span class="s3">(ONLY RIGHT)</span>, be sure that your function also checks position of the mouse cursor. Even if you want your function to be executed when the mouse cursor is inside the window and the right button is pressed, there is a convention that the function <span class="s3">DOWINDOWCOM </span>should be executed when the mouse cursor is in the</p><p style="padding-left: 107pt;text-indent: 0pt;text-align: left;">title bar or the border of the window and the right mouse button is pressed. Please</p><p style="padding-left: 107pt;text-indent: 0pt;text-align: left;">program your windows using this tradition! For more information, please see Chapter 28 in the <i>IRM</i>.</p><p style="text-indent: 0pt;text-align: left;"><br/></p><h3 style="padding-left: 71pt;text-indent: 0pt;text-align: left;"><a name="a62">Looking at a Window’s Properties</a></h3><p style="padding-top: 8pt;padding-left: 107pt;text-indent: 0pt;line-height: 107%;text-align: left;">I<span class="s3">NSPECT </span>is a function that displays a list of the properties of a window, and their values. Figure 12.3 shows the <span class="s3">INSPECT </span>function run with <span class="s3">MY.WINDOW </span>. Note the</p><p style="padding-left: 107pt;text-indent: 0pt;line-height: 107%;text-align: left;">properties introduced in <span class="s3">CREATEW </span>: <span class="s3">WBORDER </span>is the window’s border, <span class="s3">REG </span>is the region, and <span class="s3">WTITLE </span>is the window’s title.</p><p style="text-indent: 0pt;text-align: left;"><br/></p><h2 style="padding-left: 35pt;text-indent: 0pt;text-align: left;"><a name="a63">Regions                                                                                                             </a></h2><p style="text-indent: 0pt;text-align: left;"><br/></p><p style="padding-top: 4pt;padding-left: 107pt;text-indent: 0pt;line-height: 107%;text-align: left;">A region is a record, with the fields <span class="s3">LEFT</span>, <span class="s3">BOTTOM </span>, <span class="s3">WIDTH</span>, and <span class="s3">HEIGHT</span>. <span class="s3">LEFT </span>and <span class="s3">BOTTOM </span>refer to where the bottom left hand corner of the region is positioned on the screen. <span class="s3">WIDTH </span>and <span class="s3">HEIGHT </span>refer to the width and height of the region.</p><p style="text-indent: 0pt;text-align: left;"><br/></p><p class="s3" style="padding-top: 4pt;padding-left: 107pt;text-indent: 0pt;text-align: left;">CREATEREGION <span class="p">creates an instance of a record of type </span>REGION <span class="p">. Type:</span></p><p class="s3" style="padding-top: 7pt;padding-left: 57pt;text-indent: 0pt;text-align: center;">(SETQ MY.REGION (CREATEREGION 15 l00 200 450))</p><p style="padding-top: 7pt;padding-left: 107pt;text-indent: 0pt;line-height: 106%;text-align: left;">to create a record of type <span class="s3">REGION </span>that denotes a rectangle 200 pixels high, and 450 pixels wide, whose bottom left corner is at position (15, 100). This record instance can be passed to any function that requires a region as an argument, such as <span class="s3">CREATEW </span>, above.</p></li></ol></li><li><h1 style="padding-top: 3pt;padding-left: 70pt;text-indent: -35pt;text-align: left;"><a name="bookmark15">WHAT ARE MENUS?</a></h1><p style="padding-left: 35pt;text-indent: 0pt;line-height: 6pt;text-align: left;"><span><img width="640" height="8" alt="image" src="Image_086.png"/></span></p><p style="text-indent: 0pt;text-align: left;"><br/></p><p style="padding-left: 107pt;text-indent: 0pt;text-align: left;">While Medley provides a number of menus of its own (see Chapter 3), this section</p><p style="padding-left: 107pt;text-indent: 0pt;text-align: left;">addresses the menus you wish to create. You will learn how to create a menu, display a menu, and define functions that make your menu useful. Menus are instances of</p><p style="padding-left: 107pt;text-indent: 0pt;text-align: left;">records (see Chapter 24). There are 27 fields that determine the composition of every menu. Because Medley provides default values for most of these descriptive fields, you need to familiarize yourself with only a few that we describe in this section.</p><p style="padding-top: 7pt;padding-bottom: 2pt;padding-left: 107pt;text-indent: 0pt;line-height: 107%;text-align: left;">Two of these fields, the <span class="s3">TITLE </span>of your menu, and the <span class="s3">ITEMS </span>you wish it to contain, can be typed into the executive window as shown below:</p><p style="padding-left: 191pt;text-indent: 0pt;text-align: left;"><span><img width="318" height="143" alt="image" src="Image_087.gif"/></span></p><p style="padding-top: 9pt;padding-left: 243pt;text-indent: 0pt;text-align: left;">Figure 13-1. Creating a menu</p><p style="padding-top: 5pt;padding-left: 107pt;text-indent: 0pt;line-height: 107%;text-align: left;">Note that creating a menu does not display it. <span class="s3">MY.MENU </span>is set to an instance of a menu record that specifies how the menu will look, but the menu is not displayed.</p><p style="text-indent: 0pt;text-align: left;"><br/></p><h2 style="padding-left: 35pt;text-indent: 0pt;text-align: left;"><a name="a64">Displaying Menus                                                                                             </a></h2><p style="text-indent: 0pt;text-align: left;"><br/></p><p style="padding-top: 4pt;padding-left: 107pt;text-indent: 0pt;line-height: 107%;text-align: left;">Typing either the <span class="s3">MENU </span>or <span class="s3">ADDNENU </span>functions will display your menu on the screen. <span class="s3">MENU </span>implements pop-up menus, like the Background Menu or the Window Menu. <span class="s3">ADDMENU </span>puts menus into a semi-permanent window on the screen, and lets you select items from it.</p><p class="s3" style="padding-top: 6pt;padding-left: 107pt;text-indent: 0pt;line-height: 164%;text-align: left;">(MENU MENU POSITION) <span class="p">pops up a menu at a particular position on the screen. Type:</span></p><p class="s3" style="padding-left: 143pt;text-indent: 0pt;text-align: left;">(MENU MY.MENU NIL)</p><p style="padding-top: 7pt;padding-left: 107pt;text-indent: 0pt;line-height: 107%;text-align: left;">to position the menu at the end of the mouse cursor. Note that the <span class="s3">POSITION </span>argument is <span class="s3">NIL</span>. In order to go on, you must either choose an item, or move outside the menu</p><p style="padding-left: 107pt;text-indent: 0pt;text-align: left;">window and press a mouse button. When you do either, the menu will disappear. If you choose an item, then want to choose another, the menu must be redisplayed.</p><p class="s3" style="padding-top: 7pt;padding-left: 107pt;text-indent: 0pt;line-height: 107%;text-align: left;">(ADDMENU <span class="s4">menu window position</span>) <span class="p">positions a permanent menu on the screen, or in an existing window.</span></p><p style="padding-top: 6pt;padding-left: 107pt;text-indent: 0pt;text-align: left;">Type:</p><p class="s3" style="padding-top: 7pt;padding-left: 143pt;text-indent: 0pt;text-align: left;">(ADDMENU MY.MENU)</p><p style="padding-top: 7pt;padding-left: 107pt;text-indent: 0pt;line-height: 106%;text-align: left;">to display the menu as shown in Figure 13-2. This menu will remain active, (will stay on the screen) without stopping all the other processes. Because <span class="s3">ADDMENU </span>can display a menu without stopping all other processes, it is very popular in users programs.</p><p style="text-indent: 0pt;text-align: left;"><br/></p><p style="padding-top: 4pt;padding-left: 107pt;text-indent: 0pt;text-align: left;">If window is specified, the menu is displayed in that window. If window is not specified, a window the correct size for the menu is created, and the menu is displayed in that</p><p style="padding-left: 107pt;text-indent: 0pt;text-align: left;">window.</p><p style="padding-top: 7pt;padding-left: 107pt;text-indent: 0pt;text-align: left;">If position is not specified, the menu appears at the current position of the mouse cursor.</p><p style="text-indent: 0pt;text-align: left;"><br/></p><p style="padding-left: 221pt;text-indent: 0pt;text-align: left;"><span><img width="238" height="62" alt="image" src="Image_088.gif"/></span></p><p style="padding-top: 5pt;padding-left: 111pt;text-indent: 0pt;text-align: center;">Figure 13-2. Simple MenuDisplayed with <span class="s3">ADDMENU</span></p><p style="text-indent: 0pt;text-align: left;"><br/></p><h2 style="padding-left: 35pt;text-indent: 0pt;text-align: left;"><a name="a65">Getting Menus to Do Stuff                                                                               </a></h2><p style="padding-top: 9pt;padding-left: 107pt;text-indent: 0pt;text-align: justify;">One way to make a menu do things is to specify more about the menu items. Instead of items simply being the strings or atoms that will appear in the menu, items can be lists, each list with three elements (see Figure 13-3). The first element of each list is what</p><p style="padding-left: 107pt;text-indent: 0pt;text-align: left;">will appear in the menu; the second expression is what is evaluated, and the results of the evaluation returned, when the item is selected; and the third expression is the</p><p style="padding-bottom: 1pt;padding-left: 107pt;text-indent: 0pt;text-align: left;">expression that should be printed in the Prompt window when a mouse button is held down while the mouse is pointing to that menu item. This third item should be thought of as help text for the user. If the third element of the list is NIL, the system responds with <b>Will select this item w hen you release the button</b>.</p><p style="padding-left: 148pt;text-indent: 0pt;text-align: left;"><span><img width="435" height="416" alt="image" src="Image_089.gif"/></span></p><p style="text-indent: 0pt;text-align: left;"><br/></p><p style="padding-left: 111pt;text-indent: 0pt;text-align: center;">Figure 13-3. Creating a  Menu  to do Things, then displaying it with  the function</p><p class="s3" style="padding-left: 111pt;text-indent: 0pt;text-align: center;">ADDMENU</p><p style="text-indent: 0pt;text-align: left;"><br/></p><p style="padding-top: 4pt;padding-left: 107pt;text-indent: 0pt;line-height: 107%;text-align: left;">Now when an item is selected from <span class="s3">MY.MENU2</span>, something will happen. When a mouse button is held down, the expression typed as the third element in the item’s</p><p style="padding-left: 107pt;text-indent: 0pt;line-height: 11pt;text-align: left;">specification will be printed in the Prompt window. (See Figure 13-4.)</p><p style="text-indent: 0pt;text-align: left;"><br/></p><p style="padding-left: 107pt;text-indent: 0pt;text-align: left;"><span><img width="552" height="111" alt="image" src="Image_090.gif"/></span></p><p style="text-indent: 0pt;text-align: left;"><br/></p><p style="padding-left: 111pt;text-indent: 0pt;text-align: center;">Figure 13-4. Mouse Button Held Down While Mouse Cursor SeIects <span class="s3">NEXT.QUESTION</span></p><p style="text-indent: 0pt;text-align: left;"><br/></p><p style="padding-bottom: 1pt;padding-left: 107pt;text-indent: 0pt;text-align: left;">When the mouse button is released (i.e., the item is selected) the expression that was typed as the second element of the item’s specification will be run. (See Figure 13-5.)</p><p style="padding-left: 174pt;text-indent: 0pt;text-align: left;"><span><img width="364" height="156" alt="image" src="Image_091.gif"/></span></p><p style="padding-top: 5pt;padding-left: 111pt;text-indent: 0pt;text-align: center;">Figure 13-5. <span class="s3">NEXT-QUESTION </span>Selected</p><p style="text-indent: 0pt;text-align: left;"><br/></p><h2 style="padding-top: 8pt;padding-left: 35pt;text-indent: 0pt;text-align: left;"><a name="a66">WHENHELDFN and WHENSELECTEDFN Fields of a Menu                         </a></h2><p style="padding-top: 9pt;padding-left: 107pt;text-indent: 0pt;text-align: left;">Another way to get a menu to do things is to define functions, and make them the</p><p style="padding-left: 107pt;text-indent: 0pt;text-align: left;">values of the menu’s <span class="s3">WHENHELDFN </span>and <span class="s3">WHENSELECTEDFN </span>fields. As the value of the</p><p class="s3" style="padding-left: 107pt;text-indent: 0pt;text-align: left;">WHENHELDFN <span class="p">field of a menu, the function you defined will be executed when you press</span></p><p style="padding-left: 107pt;text-indent: 0pt;line-height: 107%;text-align: left;">and hold a mouse button inside the menu. As the value of the <span class="s3">WHENSELECTEDFN </span>field of a menu, the function you defined will be executed when you choose a menu item. This</p><p style="padding-left: 107pt;text-indent: 0pt;text-align: left;">example has the same functionality as the previous example, where each menu item was entered as a list of three items.</p><p style="padding-top: 6pt;padding-left: 107pt;text-indent: 0pt;text-align: left;">As an example, type in these two functions so that they can be executed when the menu is created and displayed:</p><p style="text-indent: 0pt;text-align: left;"><br/></p><p class="s3" style="padding-top: 6pt;padding-left: 143pt;text-indent: 0pt;line-height: 88%;text-align: left;">(DEFINEQ (MY.MENU3.WHENHELD (ITEM.SELECTED MENU.FROM BUTTON.PRESSED)</p><p class="s3" style="padding-left: 143pt;text-indent: 0pt;line-height: 10pt;text-align: left;">(SELECTQ ITEM.SELECTED</p><p class="s3" style="padding-left: 179pt;text-indent: 0pt;line-height: 10pt;text-align: left;">(QUIT (PROMPTPRINT &quot;CHOOSE THIS TO STOP&quot;)</p><p class="s3" style="padding-left: 215pt;text-indent: -36pt;line-height: 88%;text-align: left;">(NEXT-QUESTION (PROMPTPRINT &quot;CHOOSE THIS TO BE ASKED THE NEXT QUESTION&quot;))</p><p class="s3" style="padding-left: 215pt;text-indent: -36pt;line-height: 88%;text-align: left;">(NEXT-TOPIC (PROMPTPRINT &quot;CHOOSE THIS TO MOVE ON TO THE NEXT SUBJECT&quot;))</p><p class="s3" style="padding-left: 215pt;text-indent: -36pt;line-height: 88%;text-align: left;">(SEE-TOPICS (PROMPTPRINT &quot;CHOOSE THIS TO SEE THE TOPICS NOT YET LEARNED&quot;))</p><p class="s3" style="padding-left: 179pt;text-indent: 0pt;line-height: 10pt;text-align: left;">(ERROR (PROMPTPRINT &quot;NO MATCH FOUND&quot;))))</p><p style="text-indent: 0pt;text-align: left;"><br/></p><p class="s3" style="padding-left: 143pt;text-indent: 0pt;line-height: 88%;text-align: left;">(DEFINEQ (MY.MENU3.WHENSELECTED (ITEM.SELECTED MENU.FROM BUTTON.PRESSED)</p><p class="s3" style="padding-left: 143pt;text-indent: 0pt;line-height: 10pt;text-align: left;">(SELECTQ ITEM.SELECTED</p><p class="s3" style="padding-left: 179pt;text-indent: 0pt;line-height: 10pt;text-align: left;">(QUIT (PRINT &quot;STOPPED&quot;)</p><p class="s3" style="padding-left: 179pt;text-indent: 0pt;line-height: 88%;text-align: left;">(NEXT-QUESTION (PRINT &quot;HERE IS THE NEXT QUESTION&quot;)) (NEXT-TOPIC (PRINT &quot;HERE IS THE NEXT SUBJECT&quot;)) (SEE-TOPICS (PRINT &quot;THE FOLLOWING HAVE NOT BEEN</p><p class="s3" style="padding-left: 215pt;text-indent: 0pt;line-height: 10pt;text-align: left;">LEARNED . . .&quot;))</p><p class="s3" style="padding-left: 179pt;text-indent: 0pt;line-height: 11pt;text-align: left;">(ERROR (PROMPTPRINT &quot;NO MATCH FOUND&quot;))))</p><p style="text-indent: 0pt;text-align: left;"><br/></p><p style="padding-left: 107pt;text-indent: 0pt;text-align: left;">Now, to create the menu, type:</p><p class="s3" style="padding-top: 7pt;padding-left: 143pt;text-indent: 0pt;line-height: 10pt;text-align: left;">(SETQ MY.MENU3 (CREATE MENU</p><p class="s3" style="padding-left: 167pt;text-indent: 0pt;line-height: 11pt;text-align: left;">TITLE <span class="s2"></span><span class="p"> </span>&quot;PLEASE CHOOSE ONE OF THE ITEMS&quot;</p><p class="s3" style="padding-left: 167pt;text-indent: 0pt;line-height: 86%;text-align: left;">ITEMS <span class="s2"></span><span class="p"> </span>’(QUIT NEXT-QUESTION NEXT-TOPIC SEE-TOPICS) WHENHELDFN <span class="s2"></span><span class="p"> </span>(FUNCTION MY.MENU3.WHENHELD) WHENSELECTEDFN <span class="s2"></span><span class="p"> </span>(FUNCTION MY.MENU3.WHENSELECTED)))</p><p style="padding-top: 6pt;padding-left: 107pt;text-indent: 0pt;text-align: left;">To see your menu work, type</p><p class="s3" style="padding-top: 7pt;padding-left: 143pt;text-indent: 0pt;text-align: left;">(ADDMENU MY.MENU3)</p><p style="padding-top: 7pt;padding-left: 107pt;text-indent: 0pt;line-height: 107%;text-align: left;">Now, due to executing the <span class="s3">WHENHELDFN </span>function, holding down any mouse button while pointing to a menu item will display an explanation of the item in the prompt window.</p><p style="padding-left: 107pt;text-indent: 0pt;text-align: left;">The screen will once again look like Figure 13-4 when the mouse button is held when the mouse cursor is pointing to the item <span class="s3">NEXT-TOPIC </span>.</p><p style="padding-top: 7pt;padding-left: 107pt;text-indent: 0pt;line-height: 106%;text-align: justify;">Now due to executing the <span class="s3">WHENSELECTEDFN </span>function, releasing the mouse button to select an item will cause the proper actions for that item to be taken. The screen will once again look like Figure 13-5 when the item <span class="s3">NEXT-TOPIC </span>is selected. The crucial</p><p style="padding-left: 107pt;text-indent: 0pt;text-align: left;">thing to note is that the functions you defined for <span class="s3">WHENHELDFN </span>and <span class="s3">WHENSELECTEDFN</span></p><p style="padding-left: 107pt;text-indent: 0pt;text-align: left;">are automatically given the following arguments:</p><p style="text-indent: 0pt;text-align: left;"><br/></p><ol id="l15"><li><p style="padding-left: 125pt;text-indent: -17pt;text-align: left;">The item that was sølected, <span class="s3">ITEM.SELECTED</span></p></li><li><p style="padding-top: 7pt;padding-left: 125pt;text-indent: -17pt;text-align: left;">The menu it was selected from, <span class="s3">MENU.FROM</span></p></li><li><p style="padding-top: 7pt;padding-left: 125pt;text-indent: -17pt;text-align: left;">The mousø button that was pressed <span class="s3">BUTTON PRESSED</span></p><p style="padding-top: 7pt;padding-left: 107pt;text-indent: 0pt;text-align: justify;">These functions, <span class="s3">MY.MENU3.WHENHELD </span>and <span class="s3">MY.MENU3.WHENSELECTED</span>, were quoted</p><p style="padding-left: 107pt;text-indent: 0pt;line-height: 107%;text-align: left;">using <span class="s3">FUNCTION </span>instead of <span class="s3">QUOTE </span>both for program readability and so that the compiler can produce faster code when the program is compiled. It is good style to quote</p><p style="padding-left: 107pt;text-indent: 0pt;line-height: 12pt;text-align: justify;">functions in Lisp by using the function <span class="s3">FUNCTION </span>instead of <span class="s3">QUOTE</span>.</p><p style="text-indent: 0pt;text-align: left;"><br/></p><h2 style="padding-top: 4pt;padding-left: 35pt;text-indent: 0pt;text-align: left;"><a name="a67">Looking at a Menu’s Fields                                                                             </a></h2><p class="s3" style="padding-top: 9pt;padding-left: 107pt;text-indent: 0pt;line-height: 107%;text-align: left;">INSPECT <span class="p">is a function that displays a list of the fields of a menu, and their values. Figure 13-6 shows the various fields of </span>MY.MENU3 <span class="p">when the function </span>(INSPECT</p><p class="s3" style="padding-bottom: 1pt;padding-left: 107pt;text-indent: 0pt;line-height: 107%;text-align: left;">MY.MENU3) <span class="p">was called. Notice the values that were assigned by the examples, and all the defaults.</span></p><p style="padding-left: 125pt;text-indent: 0pt;text-align: left;"><span><img width="496" height="437" alt="image" src="Image_092.gif"/></span></p><p style="padding-top: 4pt;padding-left: 242pt;text-indent: 0pt;text-align: left;">Figure 13-6. <span class="s3">MY.MENU3 </span>Fields</p></li></ol></li><li><h1 style="padding-top: 3pt;padding-left: 70pt;text-indent: -35pt;text-align: left;"><a name="bookmark16">BITMAPS</a></h1><p style="padding-left: 35pt;text-indent: 0pt;line-height: 6pt;text-align: left;"><span><img width="640" height="8" alt="image" src="Image_093.png"/></span></p><p style="text-indent: 0pt;text-align: left;"><br/></p><p style="padding-left: 107pt;text-indent: 0pt;text-align: left;">A bitmap is a rectangular array of dots. The dots are called &quot;pixels&quot; (for picture</p><p style="padding-left: 107pt;text-indent: 0pt;text-align: left;">elements). Each dot, or pixel, is represented by a single bit. When a pixel or bit is turned on (i.e. that bit set to 1), a black dot is inserted into a bitmap. If you have a bitmap of a floppy on your screen (Figure 14-1), then all of the bits in the area that make up the floppy are turned on, and the surrounding bits are turned off.</p><p style="text-indent: 0pt;text-align: left;"><br/></p><p style="text-indent: 0pt;text-align: left;"><br/></p><p style="padding-left: 198pt;text-indent: 0pt;text-align: left;"><span><img width="303" height="281" alt="image" src="Image_094.gif"/></span></p><p style="text-indent: 0pt;text-align: left;"><br/></p><p style="padding-top: 4pt;padding-left: 237pt;text-indent: 0pt;text-align: left;">Figure 14-1. Bitmap of a Floppy</p><p style="text-indent: 0pt;text-align: left;"><br/></p><p class="s3" style="padding-left: 106pt;text-indent: 0pt;text-align: left;">BITMAPCREATE <span class="p">creates a bitmap, even though it can’t be seen.</span></p><p class="s3" style="padding-top: 7pt;padding-left: 142pt;text-indent: 0pt;text-align: left;">(BITMAPCREATE <span class="s4">width height</span>)</p><p style="padding-top: 7pt;padding-left: 107pt;text-indent: 0pt;text-align: left;">If the width and height are not supplied, the system will prompt you for them.</p><p class="s3" style="padding-top: 7pt;padding-left: 106pt;text-indent: 0pt;text-align: left;">EDITBM <span class="p">edits the bitmap. The syntax of the function is:</span></p><p class="s3" style="padding-top: 7pt;padding-left: 142pt;text-indent: 0pt;text-align: left;">(EDITBM <span class="s4">bitmapname</span>)</p><p style="padding-top: 7pt;padding-left: 107pt;text-indent: 0pt;text-align: left;">Try the following to produce the results in Figure 14-4:</p><p class="s3" style="padding-top: 7pt;padding-left: 143pt;text-indent: 0pt;line-height: 106%;text-align: left;">(SETQ MY.BITMAP (BITMAPCREATE 60 40)) EDITBM MY.BITMAP)</p><p style="text-indent: 0pt;text-align: left;"><br/></p><p class="s10" style="padding-left: 107pt;text-indent: 0pt;text-align: justify;">To dra w <span class="p">In the bitmap, move the mouse into the gridded section of the bitmap editor, and press and hold the leff mouse button. Move the mouse around to turn on the bits</span></p><p style="padding-left: 107pt;text-indent: 0pt;text-align: justify;">represented by the spaces in the grid. Notice that each space in the grid represents one pixel on the bitmap</p><p class="s10" style="padding-top: 7pt;padding-left: 107pt;text-indent: 0pt;text-align: justify;">To erase <span class="p">Move the mouse into the gridded section of the bitmap editor, and press and hold the center mouse button. Move the mouse around to turn off the bits represented by the spaces in the gridded section of the bitmap editor.</span></p><p style="text-indent: 0pt;text-align: left;"><br/></p><p class="s10" style="padding-top: 4pt;padding-left: 107pt;text-indent: 0pt;text-align: left;">To w ork on a different section <span class="p">Point with the mouse cursor to the picture of the</span></p><p style="padding-left: 107pt;text-indent: 0pt;text-align: left;">actual bitmap (the upper left corner of the bitmap editor). Press and hold the left mouse button. A menu with the single item, Move will appear. (See Figure 14-2.) Choose this</p><p style="padding-left: 107pt;text-indent: 0pt;text-align: left;">item.</p><p style="text-indent: 0pt;text-align: left;"><br/></p><p style="padding-left: 139pt;text-indent: 0pt;text-align: left;"><span><img width="457" height="360" alt="image" src="Image_095.gif"/></span></p><p style="padding-top: 7pt;padding-left: 211pt;text-indent: 0pt;text-align: left;">Figure 14-2. Menu with Single Item (Move)</p><p style="text-indent: 0pt;text-align: left;"><br/></p><p style="padding-left: 107pt;text-indent: 0pt;text-align: left;">You will be asked to position a ghost window over the bitmap. This ghost window</p><p style="padding-left: 107pt;text-indent: 0pt;text-align: left;">represents the portion of the bitmap that you are currently editing. Place it over the</p><p style="padding-left: 107pt;text-indent: 0pt;text-align: left;">section of the bitmap that you wish to edit and click the left mouse button (see Figure 14-3).</p><p style="text-indent: 0pt;text-align: left;"><br/></p><p style="padding-left: 218pt;text-indent: 0pt;text-align: left;"><span><img width="258" height="270" alt="image" src="Image_096.gif"/></span></p><p style="padding-top: 7pt;padding-left: 195pt;text-indent: 0pt;text-align: left;">Figure 14-3. Ghost Window Awaiting Positioning</p><p style="text-indent: 0pt;text-align: left;"><br/></p><p class="s10" style="padding-top: 4pt;padding-left: 107pt;text-indent: 0pt;text-align: left;">To end the session, <span class="p">bring the mouse cursor into the upper-right portion of the window (the grey area) and press the center button. Select OK from the menu to save your</span></p><p style="padding-left: 107pt;text-indent: 0pt;text-align: left;">artwork.</p><p style="text-indent: 0pt;text-align: left;"><br/></p><p style="padding-left: 197pt;text-indent: 0pt;text-align: left;"><span><img width="305" height="271" alt="image" src="Image_097.gif"/></span></p><p style="padding-top: 6pt;padding-left: 241pt;text-indent: 0pt;text-align: left;">Figure 14-4. Editing a Bitmap</p><p style="text-indent: 0pt;text-align: left;"><br/></p><p class="s3" style="padding-left: 107pt;text-indent: 0pt;text-align: left;">BITBLT <span class="p">is the primitive function for moving bits (or pixels) from one bitmap to another.</span></p><p style="padding-left: 107pt;text-indent: 0pt;text-align: left;">It extracts bits from the source bitmap, and combines them in appropriate ways with those of the destination bitmap. The syntax of the function is:</p><p style="text-indent: 0pt;text-align: left;"><br/></p><p class="s3" style="padding-left: 143pt;text-indent: 0pt;line-height: 88%;text-align: left;">(BITBLT sourcebitmap sourcelefl sourcebottom destinationbitmap destinationleft destinationbottom width height sourcetype operation texture clippIngregion)</p><p style="text-indent: 0pt;text-align: left;"><br/></p><p style="padding-left: 107pt;text-indent: 0pt;line-height: 107%;text-align: left;">Here’s how it’s done —using <span class="s3">MY.BITMAP </span>as the sourcebitmap and <span class="s3">MY.WlNDOW </span>as the destinationbitmap.</p><p class="s3" style="padding-top: 6pt;padding-left: 143pt;text-indent: 0pt;line-height: 11pt;text-align: left;">(BITBLT MY.BITMAP NIL NIL</p><p class="s3" style="padding-left: 191pt;text-indent: 0pt;line-height: 11pt;text-align: left;">MY.WINDOW NIL NIL NIL NIL ‘INPUT ‘REPLACE)</p><p style="text-indent: 0pt;text-align: left;"><br/></p><p style="padding-left: 107pt;text-indent: 0pt;text-align: left;">Note that the destination bitmap can be, and usually is, a window. Actually, it is the bitmap of a window, but the system handles that detail for you. Because of the <span class="s3">NIL</span>s</p><p style="padding-left: 107pt;text-indent: 0pt;text-align: left;">(meaning &quot;use the default&quot;), <span class="s3">MY.BITMAP </span>will be <span class="s3">BITBLT</span>’d into the lower right corner of</p><p class="s3" style="padding-left: 107pt;text-indent: 0pt;text-align: left;">MY.WlNDOW <span class="p">(see Figure 14-5).</span></p><p style="text-indent: 0pt;text-align: left;"><br/></p><p style="padding-left: 161pt;text-indent: 0pt;text-align: left;"><span><img width="399" height="427" alt="image" src="Image_098.gif"/></span></p><p style="text-indent: 0pt;text-align: left;"><br/></p><p style="padding-top: 4pt;padding-left: 107pt;text-indent: 90pt;line-height: 245%;text-align: left;">Figure 14-5. <span class="s3">BITBLT </span>ing a Bitmap onto a Window Here is what each of the <span class="s3">BITBLT </span>arguments to the function mean:</p><p class="s3" style="padding-top: 2pt;padding-left: 107pt;text-indent: 0pt;text-align: left;">sourcebitmap <span class="p">The bitmap to be moved into the destinationbitmap</span></p><p class="s3" style="padding-top: 7pt;padding-left: 107pt;text-indent: 0pt;text-align: left;">sourceleft <span class="p">A number, starting at 0 for the left edge of the</span></p><p style="padding-left: 239pt;text-indent: 0pt;text-align: left;">sourcebitmap, that tells <span class="s3">BITBLT </span>where to start moving pixels from the sourcebitmap. For example, if the leftmost 10 pixels of sourcebitmap were not to be moved, sourceleft should be 10. The default value is 0.</p><p class="s3" style="padding-top: 7pt;padding-left: 107pt;text-indent: 0pt;text-align: left;">sourcebottom <span class="p">A number, starting at 0 for the bottom edge of the</span></p><p style="padding-left: 239pt;text-indent: 0pt;text-align: left;">sourcebitmap, that tells <span class="s3">BITBLT </span>where to start moving pixels from the sourcebitmap. For example, if the bottom 10 rows of pixels of sourcebitmap were not to be moved, sourcebottom should be 10 The default value is 0.</p><p class="s3" style="padding-top: 7pt;padding-left: 107pt;text-indent: 0pt;text-align: left;">destinationbitmap <span class="p">The bitmap that will receive the sourcebitmap. This is</span></p><p style="padding-left: 239pt;text-indent: 0pt;text-align: left;">often a window (actually the bitmap of a window, but Interlisp-D takes care of that for you).</p><p class="s3" style="padding-top: 7pt;padding-left: 107pt;text-indent: 0pt;text-align: left;">destinationleft <span class="p">A number, starting at 0 for the left edge of the</span></p><p style="padding-left: 239pt;text-indent: 0pt;line-height: 107%;text-align: left;">destinationbitmap, that tells <span class="s3">BITBLT </span>where to start placing pixels from the sourcebitmap. For example, to place the</p><p style="padding-left: 239pt;text-indent: 0pt;text-align: left;">sourcebitmap 10 pixels in from the left, destinationleft should be 10. The default value is 0.</p><p style="text-indent: 0pt;text-align: left;"><br/></p><p class="s3" style="padding-top: 4pt;padding-left: 107pt;text-indent: 0pt;text-align: left;">destinationbottom <span class="p">A number, starting at 0 for the bottom edge of the</span></p><p style="padding-left: 239pt;text-indent: 0pt;line-height: 107%;text-align: left;">destinationbitmap, that tells <span class="s3">BITBLT </span>where to start placing pixels from the sourcebitmap. For example, to place the</p><p style="padding-left: 239pt;text-indent: 0pt;line-height: 11pt;text-align: left;">sourcebitmap 10 pixels up from the bottom,</p><p style="padding-left: 239pt;text-indent: 0pt;text-align: left;">destinationbottom should be 10. The default value is 0.</p><p class="s3" style="padding-top: 7pt;padding-left: 239pt;text-indent: -132pt;line-height: 107%;text-align: left;">width <span class="p">How many pixels in each row of sourcebitmap should be moved. The samc amount of space is used in</span></p><p style="padding-left: 239pt;text-indent: 0pt;line-height: 11pt;text-align: left;">destinationbitmap to receive the sourcebitmap. If this</p><p style="padding-left: 239pt;text-indent: 0pt;line-height: 107%;text-align: left;">argument is <span class="s3">NIL</span>, it defaults to the number of pixels from sourceleft to the end of the row of sourcebitmap.</p><p class="s3" style="padding-top: 6pt;padding-left: 107pt;text-indent: 0pt;text-align: left;">height <span class="p">How many rows of pixels of sourcebitmap should be moved.</span></p><p style="padding-left: 239pt;text-indent: 0pt;text-align: left;">The same amount of space is used in destinationbitmap to receive the sourcebitmap. If this argument is <span class="s3">NIL</span>, it</p><p style="padding-left: 239pt;text-indent: 0pt;text-align: left;">defaults to the number of rows from sourcebottom to the top of the sourcebitmap.</p><p class="s3" style="padding-top: 7pt;padding-left: 107pt;text-indent: 0pt;text-align: left;">sourcetype <span class="p">Refers to one of three ways to convert the sourcebitmap for</span></p><p style="padding-left: 239pt;text-indent: 0pt;text-align: left;">writing. For now, just use <span class="s3">’INPUT</span>.</p><p class="s3" style="padding-top: 7pt;padding-left: 239pt;text-indent: -132pt;line-height: 107%;text-align: justify;">operation <span class="p">Refers to how the sourtebitmap gets </span>BITBLT <span class="p">’d on to the destinationbitmap. </span>’REPLACE <span class="p">will </span>BLT <span class="p">the exact</span></p><p style="padding-left: 239pt;text-indent: 0pt;line-height: 107%;text-align: justify;">sourcebitmap. Other operations allow you to <span class="s3">AND</span>, <span class="s3">OR </span>or <span class="s3">XOR </span>the bits from the sourcebitmap onto the bits on the destinationbitmap.</p><p class="s3" style="padding-top: 6pt;padding-left: 107pt;text-indent: 0pt;text-align: left;">texture <span class="p">J ust use </span>NIL <span class="p">for now.</span></p><p class="s3" style="padding-top: 7pt;padding-left: 106pt;text-indent: 0pt;text-align: left;">clippingregion <span class="p">J ust use </span>NIL <span class="p">for now.</span></p><p style="text-indent: 0pt;text-align: left;"><br/></p><p style="padding-left: 107pt;text-indent: 0pt;text-align: left;">For more information on these operations, see Chapter 27 in the <i>IRM</i>.</p></li><li><h1 style="padding-top: 3pt;padding-left: 70pt;text-indent: -35pt;text-align: left;"><a name="bookmark17">DISPLAYSTREAMS</a></h1><p style="padding-left: 35pt;text-indent: 0pt;line-height: 6pt;text-align: left;"><span><img width="640" height="8" alt="image" src="Image_099.png"/></span></p><p style="text-indent: 0pt;text-align: left;"><br/></p><p style="padding-top: 15pt;padding-left: 107pt;text-indent: 0pt;text-align: left;">A displaystream is a genera Jized &quot;place to display&quot;. They determine exactly what is displayed where. One example of a displaystream is a window. Windows are the only</p><p style="padding-left: 107pt;text-indent: 0pt;text-align: left;">displaystreams that will be used in this chapter. If you want to draw on a bitmap that is not a window, other than with BITBLT, or want to use other types of displaystreams, please refer to Chapter 27 in the <i>IRM</i>.</p><p style="text-indent: 0pt;text-align: left;"><br/></p><p style="padding-left: 107pt;text-indent: 0pt;line-height: 107%;text-align: left;">This chapter explains functions for drawing on displaystreams: <span class="s3">DRAWLINE </span>, <span class="s3">DRAWTO</span>, <span class="s3">DRAWCIRCLE</span>., and <span class="s3">FILLCIRCLE</span>. In addition, functions for locating and changIng your curreAt position in the displaystream are covered: <span class="s3">DSPXPOSITION </span>, <span class="s3">DSPYPOSITION</span>, and <span class="s3">MOVETO</span>.</p><p style="text-indent: 0pt;text-align: left;"><br/></p><h2 style="padding-left: 35pt;text-indent: 0pt;text-align: left;"><a name="a68">Drawing on a Displaystream                                                                           </a></h2><p style="text-indent: 0pt;text-align: left;"><br/></p><p style="padding-top: 4pt;padding-left: 107pt;text-indent: 0pt;text-align: left;">The examples belowshow you how the functions for drawing on a display stream work. First, create a window. Windows are displaystreams, and the one you create are used for the examples in this chapter. Type:</p><p class="s3" style="padding-top: 6pt;padding-left: 143pt;text-indent: 0pt;text-align: left;">(SETQ EXAMPLE.WINDOW (CREATEW))</p><p style="text-indent: 0pt;text-align: left;"><br/></p><h4 style="padding-left: 71pt;text-indent: 0pt;text-align: left;"><a name="a69">DRAWLlNE</a></h4><p style="text-indent: 0pt;text-align: left;"><br/></p><p class="s3" style="padding-left: 107pt;text-indent: 0pt;text-align: left;">DRAWLINE <span class="p">draws a line in a displaystream. For example, type:</span></p><p class="s3" style="padding-top: 7pt;padding-left: 143pt;text-indent: 0pt;text-align: left;">(DRAWLINE 10 15 100 150 5 ’INVERT EXAMPLE.WINDOW)</p><p style="padding-top: 7pt;padding-bottom: 2pt;padding-left: 107pt;text-indent: 0pt;text-align: left;">The results should look like Figure 15-1:</p><p style="padding-left: 168pt;text-indent: 0pt;text-align: left;"><span><img width="316" height="240" alt="image" src="Image_100.gif"/></span></p><p style="padding-top: 5pt;padding-left: 107pt;text-indent: 48pt;line-height: 164%;text-align: left;">Figure 15-1. Line Drawn onto the <span class="s3">EXAMPLE.WINDOW </span>Displayrtream The syntax of <span class="s3">DRAWLINE </span>is</p><p class="s3" style="padding-top: 1pt;text-indent: 0pt;text-align: right;">(DRAWLINE <span class="s4">x1 y1 x2 y2 width operation stream color dashing</span>)</p><p style="padding-top: 7pt;text-indent: 0pt;text-align: right;">The coordinates of the left bottom corner of the displaystream are 0 0.</p><p style="text-indent: 0pt;text-align: left;"><br/></p><p style="padding-top: 4pt;padding-left: 107pt;text-indent: 0pt;line-height: 165%;text-align: left;">xl and yl x and y coordinates of the beginning of the line x2andy2 ending coordinates of the line</p><p style="padding-left: 107pt;text-indent: 0pt;text-align: left;">width width of the line, in pixels</p><p style="padding-top: 7pt;padding-left: 179pt;text-indent: -72pt;line-height: 106%;text-align: left;">operation way the line is to be drawn. <span class="s3">INVERT </span>causes the line to invert the bits that are already in the displaystream. Drawing a line the second time using <span class="s3">INVERT </span>erases the line. For other operations, see Chapter 27 in the <i>IRM.</i></p><p style="padding-top: 7pt;padding-left: 107pt;text-indent: 0pt;text-align: left;">stream displaystream. In this case, you used a window.</p><p style="text-indent: 0pt;text-align: left;"><br/></p><h4 style="padding-left: 70pt;text-indent: 0pt;text-align: left;"><a name="a70">DRAWTO</a></h4><p style="text-indent: 0pt;text-align: left;"><br/></p><p class="s3" style="padding-left: 107pt;text-indent: 0pt;line-height: 107%;text-align: left;">DRAWTO <span class="p">draws a line that begins at your current position in the displaystream. For example, type:</span></p><p class="s3" style="padding-top: 6pt;padding-left: 142pt;text-indent: 0pt;text-align: left;">(DRAWTO 120 135 5 ’INVERT EXAMPLE.WINDOW)</p><p style="padding-top: 7pt;padding-left: 107pt;text-indent: 0pt;text-align: left;">The results should look like Figure 15-2:</p><p style="text-indent: 0pt;text-align: left;"><br/></p><p style="padding-left: 170pt;text-indent: 0pt;text-align: left;"><span><img width="316" height="240" alt="image" src="Image_101.gif"/></span></p><p style="padding-top: 8pt;padding-left: 107pt;text-indent: 28pt;line-height: 188%;text-align: left;">Figure 15-2. Another Line drawn onto the <span class="s3">EXAMPLE.WINDOW </span>Displaystream The syntax of <span class="s3">DRAWTO </span>is</p><p class="s3" style="padding-left: 143pt;text-indent: 0pt;line-height: 11pt;text-align: left;">(DRAWTO <span class="s4">x y width operation stream color dashing</span>)</p><p style="text-indent: 0pt;text-align: left;"><br/></p><p style="padding-left: 107pt;text-indent: 0pt;line-height: 165%;text-align: left;">The line begins at the current position in the displaystream. x x coordinate of the end of the line</p><p style="padding-left: 107pt;text-indent: 0pt;text-align: left;">y y coordinate of the end of the line</p><p style="padding-top: 7pt;padding-left: 107pt;text-indent: 0pt;text-align: left;">width width of the line</p><p style="padding-top: 7pt;padding-left: 179pt;text-indent: -72pt;line-height: 106%;text-align: left;">operation way the lino is to be drawn. <span class="s3">INVERT </span>causes the line to invert the bits that aro already in tho displaystream. Drawing a line the second time using <span class="s3">INVERT </span>erases the line. For other operations, see Chapter 27 in the <i>IRM</i></p><p style="padding-top: 7pt;padding-left: 107pt;text-indent: 0pt;text-align: left;">stream displaystreom. In this case. you used a window.</p><p style="text-indent: 0pt;text-align: left;"><br/></p><h4 style="padding-top: 4pt;padding-left: 71pt;text-indent: 0pt;text-align: left;"><a name="a71">DRAWClRCLE</a></h4><p style="text-indent: 0pt;text-align: left;"><br/></p><p class="s3" style="padding-left: 107pt;text-indent: 0pt;text-align: left;">DRAWCIRCLE <span class="p">draws a circle on a displaystream. To use it, type:</span></p><p class="s3" style="padding-top: 7pt;padding-left: 143pt;text-indent: 0pt;text-align: left;">(DRAWCIRCLE 150 100 30 ’(VERTICAL 5) NIL EXAMPLE.WINDOW<span class="p">)</span></p><p style="padding-top: 7pt;padding-left: 107pt;text-indent: 0pt;text-align: left;">Now your window, <span class="s3">EXAMPLE.WlNDOW</span>, should look like Figure 15-3:</p><p style="text-indent: 0pt;text-align: left;"><br/></p><p style="padding-left: 192pt;text-indent: 0pt;text-align: left;"><span><img width="316" height="240" alt="image" src="Image_102.gif"/></span></p><p style="padding-top: 10pt;padding-left: 107pt;text-indent: 44pt;line-height: 164%;text-align: left;">Figure 15-3. Circle Drawn onto the <span class="s3">EXAMPLE.WlNDOW </span>Displaystream The syntax of <span class="s3">DRAWCIRCLE </span>is</p><p style="padding-top: 1pt;padding-left: 107pt;text-indent: 36pt;line-height: 164%;text-align: left;">(<span class="s3">DRAWCIRCLE </span><i>centerx centery radius brush dashing stream</i>) centerx x coordinate of the center of the circle</p><p style="padding-left: 107pt;text-indent: 0pt;line-height: 165%;text-align: left;">centery coordinate of the center of the circle radius radius of the circle in pixels</p><p style="padding-left: 107pt;text-indent: 0pt;text-align: left;">brush list.- The first- item of the list is the shape of the brush. Some of your</p><p style="padding-left: 179pt;text-indent: 0pt;line-height: 107%;text-align: left;">options include <span class="s3">ROUND</span>, <span class="s3">SQUARE</span>, and <span class="s3">VERTICAL</span>. The second item of that list is the width of the brush in pixels.</p><p style="padding-top: 6pt;padding-left: 107pt;text-indent: 0pt;text-align: left;">dashing list of positive integers. The brush is &quot;on&quot; for the number of units</p><p style="padding-left: 179pt;text-indent: 0pt;text-align: left;">indicated by the first element of the list, &quot;off&quot; for the number of units</p><p style="padding-left: 179pt;text-indent: 0pt;text-align: left;">indicated by the second element of the list. The third element specifies how long it will be on again, and so forth. The sequence is repeated until the circle has been drawn.</p><p style="padding-top: 7pt;padding-left: 107pt;text-indent: 0pt;text-align: left;">stream displaystream. In this case, you used a window.</p><p style="text-indent: 0pt;text-align: left;"><br/></p><h4 style="padding-left: 71pt;text-indent: 0pt;text-align: left;"><a name="a72">FlLLClRCLE</a></h4><p style="text-indent: 0pt;text-align: left;"><br/></p><p class="s3" style="padding-left: 107pt;text-indent: 0pt;text-align: left;">FILLCIRCLE <span class="p">draws a filled circle on a displaystream. To use it, type:</span></p><p class="s3" style="padding-top: 7pt;padding-left: 143pt;text-indent: 0pt;text-align: left;">(FILLCIRCLE 200 150 10 GRAYSHADE EXAMPLE.WINDOW)</p><p class="s3" style="padding-top: 7pt;padding-left: 107pt;text-indent: 0pt;text-align: left;">EXAMPLE.WlNDOW <span class="p">now looks like Figure 15-4:</span></p><p style="text-indent: 0pt;text-align: left;"><br/></p><p style="padding-left: 168pt;text-indent: 0pt;text-align: left;"><span><img width="316" height="240" alt="image" src="Image_103.gif"/></span></p><p style="text-indent: 0pt;text-align: left;"><br/></p><p style="padding-top: 4pt;padding-left: 107pt;text-indent: 73pt;line-height: 165%;text-align: left;">Figure 15-4. A filled circle drawn onto the displaystream The syntax of <span class="s3">FILLCIRCLE </span>is:</p><p style="padding-left: 107pt;text-indent: 36pt;line-height: 164%;text-align: left;">(<span class="s3">FILLCIRCLE </span><i>centerx centery radius texture stream</i>) centerx x coordinate of the center of the circle</p><p style="padding-left: 107pt;text-indent: 0pt;line-height: 165%;text-align: left;">centery y coordinate of the center of the ci rcle radius radius of the circle in pixels</p><p style="padding-left: 107pt;text-indent: 0pt;text-align: left;">texture shade that will be used to fill in the circle. Interlisp-D provides you with</p><p style="padding-left: 179pt;text-indent: 0pt;line-height: 107%;text-align: left;">three shades: <span class="s3">WHlTESHADE </span>, <span class="s3">BLACKSHADE</span>, and <span class="s3">GRAYSHADE</span>. You can also create your own shades. For more information on how to do this, see</p><p style="padding-left: 179pt;text-indent: 0pt;line-height: 11pt;text-align: left;">Chapter 27 in the <i>IRM</i>.</p><p style="padding-top: 7pt;padding-left: 107pt;text-indent: 0pt;text-align: left;">stream displaystream. In this case, you used a window</p><p style="padding-top: 7pt;padding-left: 107pt;text-indent: 0pt;text-align: left;">There are many other functions for drawing on a displaystream. Please refer to Chapter 27 in the <i>IRM</i>.</p><p style="padding-top: 7pt;padding-left: 107pt;text-indent: 0pt;line-height: 106%;text-align: left;">Text can also be placed into displaystreams. To do this, use printing functions such as <span class="s3">PRIN1 </span>and <span class="s3">PRIN2</span>, but supply the name of the displaystream as the &quot;file&quot; to print to. To place the text in the proper position in the displaystream, see the section below.</p><p style="text-indent: 0pt;text-align: left;"><br/></p><h2 style="padding-left: 35pt;text-indent: 0pt;text-align: left;"><a name="a73">Locating and Changing Your Position in a Displaystream                          </a></h2><p style="text-indent: 0pt;text-align: left;"><br/></p><p style="padding-top: 4pt;padding-left: 107pt;text-indent: 0pt;text-align: left;">There are functions provided to locate, and to change your current position in a</p><p style="padding-left: 107pt;text-indent: 0pt;text-align: left;">displayitream. This can help you place text, and other images where you want them in</p><p style="padding-left: 107pt;text-indent: 0pt;text-align: left;">a displaystream. This primer will only discuss three of these. There are others, and they can be foun d in the Chapter 27 of the <i>IRM</i>.</p><p style="text-indent: 0pt;text-align: left;"><br/></p><h4 style="padding-left: 71pt;text-indent: 0pt;text-align: left;"><a name="a74">DSPXPOSlTlON</a></h4><p class="s3" style="padding-top: 8pt;padding-left: 107pt;text-indent: 0pt;text-align: left;">DSPXPOSITION <span class="p">is a function that will either change the current x position in a</span></p><p style="padding-left: 107pt;text-indent: 0pt;text-align: left;">displaystream, or simply report it. To have the function report the current x position in</p><p class="s3" style="padding-left: 107pt;text-indent: 0pt;text-align: left;">EXAMPLE.WlNDOW<span class="p">, type:</span></p><p class="s3" style="padding-top: 7pt;padding-left: 143pt;text-indent: 0pt;text-align: left;">(DSPXPOSITION NIL EXAMPLE.WINDOW)</p><p style="text-indent: 0pt;text-align: left;"><br/></p><p class="s3" style="padding-top: 4pt;padding-left: 107pt;text-indent: 0pt;line-height: 107%;text-align: left;">DSPXPOSITION <span class="p">expects two arguments. The first is the new x position. If this argument is </span>NIL<span class="p">, the current position is not changed, merely reported. The second argument is</span></p><p style="padding-left: 107pt;text-indent: 0pt;text-align: left;">the displaystream.</p><p style="text-indent: 0pt;text-align: left;"><br/></p><h4 style="padding-left: 71pt;text-indent: 0pt;text-align: left;"><a name="a75">DSPYPOSlTlON</a></h4><p class="s3" style="padding-top: 8pt;padding-left: 107pt;text-indent: 0pt;text-align: left;">DSPYPOSITION <span class="p">is an analogous function, but It changes or reports the current y</span></p><p style="padding-left: 107pt;text-indent: 0pt;line-height: 106%;text-align: left;">position in a displaystream. As with <span class="s3">DSPXPOSlTlON </span>, if the first argument is a number, the current y position will be changed to that position. If it is <span class="s3">NIL</span>, the current position is simply reported. To have the function report the current y position in <span class="s3">EXAMPLE.WlNDOW</span>, type:</p><p class="s3" style="padding-top: 7pt;padding-left: 143pt;text-indent: 0pt;text-align: left;">(DSPYPOSITION NIL EXAMPLE.WlNDOW)</p><p style="text-indent: 0pt;text-align: left;"><br/></p><h4 style="padding-left: 71pt;text-indent: 0pt;text-align: left;"><a name="a76">MOVETO</a></h4><p style="padding-top: 8pt;padding-left: 107pt;text-indent: 0pt;line-height: 107%;text-align: left;">The function <span class="s3">MOVETO </span>always changes your position in the displaystream. It expects three arguments:</p><p style="padding-top: 6pt;padding-left: 143pt;text-indent: 0pt;text-align: left;">(<span class="s3">MOVETO </span><i>x y stream</i>)</p><p style="text-indent: 0pt;text-align: left;"><br/></p><ol id="l16"><li><p style="padding-left: 179pt;text-indent: -72pt;text-align: left;">new x position in the display stream</p></li><li><p style="padding-top: 7pt;padding-left: 179pt;text-indent: -72pt;text-align: left;">new y position in the display stream</p></li></ol><p style="padding-top: 7pt;padding-left: 107pt;text-indent: 0pt;text-align: left;">stream display stream. The examples so far have used a window</p></li><li><h1 style="padding-top: 3pt;padding-left: 70pt;text-indent: -35pt;text-align: left;"><a name="bookmark18">FONTS</a></h1><p style="padding-left: 35pt;text-indent: 0pt;line-height: 6pt;text-align: left;"><span><img width="640" height="8" alt="image" src="Image_104.png"/></span></p><p style="text-indent: 0pt;text-align: left;"><br/></p><p style="padding-top: 15pt;padding-left: 107pt;text-indent: 0pt;text-align: left;">This chapter explains font s and font descriptors, what they are and how to use them, so that you can use functions requiring font descriptors</p><p style="padding-top: 7pt;padding-left: 107pt;text-indent: 0pt;text-align: left;">You have already been exposed to many font s in Medley. For example, when you use the structure editor, DEdit (see the Using the List Structure Editor section of Chapter 7), you noticed that the comments were printed in a smaller font than the code, and</p><p style="padding-left: 107pt;text-indent: 0pt;text-align: left;">that CLlSP words (see the CLISP section of Chapter 9) were printed in a darker font</p><p style="padding-left: 107pt;text-indent: 0pt;text-align: left;">than the other words in the function. These are only some of the font s that are available in Medley.</p><p style="padding-top: 7pt;padding-left: 106pt;text-indent: 0pt;text-align: left;">In addition to the font s that appear on your screen, Medley uses font s for printers that are different than the ones used for the screen. The font s used to print to the screen are called <span class="s3">DlSPLAYFONTS</span>. The font s used for prining are called <span class="s3">INTERPRESSFONTS </span>, or <span class="s3">PRESSFONTS</span>, depending on the type of printer.</p><p style="text-indent: 0pt;text-align: left;"><br/></p><h2 style="padding-left: 35pt;text-indent: 0pt;text-align: left;"><a name="a77">What Makes Up a Font                                                                                     </a></h2><p style="text-indent: 0pt;text-align: left;"><br/></p><p style="padding-top: 4pt;padding-left: 107pt;text-indent: 0pt;text-align: left;">Fonts are described by family, weight, slope, width, and size. This section discusses each of these, and describes how they affect the font you see on the screen.</p><p style="padding-top: 7pt;padding-left: 107pt;text-indent: 0pt;text-align: justify;">Family is one way that font s can differ. Here are some examples of how &quot;family&quot; affect s the look of a font:</p><p class="s3" style="padding-top: 7pt;padding-left: 107pt;text-indent: 0pt;line-height: 164%;text-align: justify;">CLASSIC <span class="p">This family makes the word &quot;Able&quot; look like this: Able </span>MODERN <span class="p">This family makes the word &quot;Able&quot; look like this: </span><span class="s6">Able </span>TITAN <span class="p">This family makes the word &quot;Able&quot; look like this: </span>Able</p><p style="padding-top: 1pt;padding-left: 107pt;text-indent: 0pt;text-align: justify;">Weight also determines the look of a font. Once again, &quot;Able&quot; will be used as an example, this time only with the Classic family. A font’s weight can be:</p><p class="s3" style="padding-top: 7pt;padding-left: 107pt;text-indent: 0pt;text-align: justify;">BOLD <span class="p">And look like this: </span><span class="s10">Able</span></p><p class="s3" style="padding-top: 8pt;padding-left: 107pt;text-indent: 0pt;text-align: left;">MEDIUM</p><p style="padding-left: 107pt;text-indent: 0pt;text-align: left;">or <span class="s3">REGULAR </span>And look like this: Able</p><p style="padding-top: 7pt;padding-left: 107pt;text-indent: 0pt;text-align: justify;">The slope of a font is italic or regular. Using the Classic family font again, in a regular weight, the slope affect s the font like this:</p><p class="s3" style="padding-top: 7pt;padding-left: 107pt;text-indent: 0pt;text-align: left;">ITALIC <span class="p">Looks like this: </span><span class="s4">Able</span></p><p class="s3" style="padding-top: 7pt;padding-left: 107pt;text-indent: 0pt;text-align: left;">REGULAR <span class="p">Looks like this: Able</span></p><p style="padding-top: 7pt;padding-left: 107pt;text-indent: 0pt;text-align: justify;">The width of a font is called its &quot;expansion&quot;. It can be <span class="s3">COMPRESSED </span>, <span class="s3">REGULAR</span>, or</p><p class="s3" style="padding-left: 107pt;text-indent: 0pt;text-align: left;">EXPANDED<span class="p">.</span></p><p style="padding-top: 7pt;padding-left: 107pt;text-indent: 0pt;text-align: left;">Together, the weight, slope, and expansion of a font specifies the font’s &quot;face&quot;. Specifically, the face of a font is a three element list:</p><p style="padding-top: 7pt;padding-left: 143pt;text-indent: 0pt;text-align: left;">(weight slope expansion)</p><p style="padding-top: 7pt;padding-left: 107pt;text-indent: 0pt;text-align: justify;">To make it easier to type, when a function requires a font face as an argument, it can be abbreviated with a three-character atom. The first specifies the weight, the second the</p><p style="text-indent: 0pt;text-align: left;"><br/></p><p style="padding-top: 4pt;padding-left: 107pt;text-indent: 0pt;text-align: left;">slope, and the third character the expansion. For example, some common font faces are abbreviated:</p><p class="s3" style="padding-top: 7pt;padding-left: 107pt;text-indent: 0pt;text-align: left;">MRR <span class="p">This is the usual face, </span>MEDIUM<span class="p">, </span>REGULAR<span class="p">, </span>REGULAR</p><p class="s3" style="padding-top: 7pt;padding-left: 107pt;text-indent: 0pt;text-align: left;">MIR <span class="p">Makes an italic font. It stands for: </span>MEDIUM <span class="p">, </span>ITALIC<span class="p">, </span>REGULAR</p><p class="s3" style="padding-left: 107pt;text-indent: 0pt;line-height: 20pt;text-align: left;">BRR <span class="p">Makes a bold font. The abbreviation means: </span>BOLD<span class="p">, </span>REGULAR <span class="p">, </span>REGULAR BIR <span class="p">Means that the font should be both bold and italic. </span>BIR <span class="p">stands for </span>BOLD<span class="p">,</span></p><p class="s3" style="padding-top: 1pt;padding-left: 179pt;text-indent: 0pt;text-align: left;">ITALIC<span class="p">, </span>REGULAR</p><p style="padding-top: 7pt;padding-left: 107pt;text-indent: 0pt;text-align: left;">The above examples are used so oflen, that there are also more mnemonic abbreviations for them. They can also be used to specify a font face for a function that requires a face as an argument. They are:</p><p style="text-indent: 0pt;text-align: left;"><br/></p><p class="s3" style="padding-left: 179pt;text-indent: -72pt;line-height: 107%;text-align: left;">STANDARD <span class="p">This is the usual face: </span>MEDIUM<span class="p">, </span>REGULAR<span class="p">, </span>REGULAR<span class="p">; it was abbreviated above, </span>MRR</p><p class="s3" style="padding-top: 7pt;padding-left: 107pt;text-indent: 0pt;text-align: left;">ITALIC <span class="p">This was abbreviated above as </span>MIR<span class="p">, and specifies an italic font</span></p><p class="s3" style="padding-top: 7pt;padding-left: 107pt;text-indent: 0pt;text-align: left;">BOLD <span class="p">Makes a bold font; it was abbreviated above, </span>BRR</p><p class="s3" style="padding-top: 7pt;padding-left: 179pt;text-indent: -72pt;line-height: 107%;text-align: left;">BOLDITALIC <span class="p">Makes a font both bold and italic: </span>BOLD<span class="p">, </span>ITALIC <span class="p">, </span>REGULAR<span class="p">; it was abbreviated above, </span>BIR</p><p style="padding-top: 7pt;padding-left: 107pt;text-indent: 0pt;text-align: left;">A font also has a size. It is a positive integer that specifies the height of the font in</p><p style="padding-left: 107pt;text-indent: 0pt;text-align: left;">printers points. A point is, on an 1108 screen, about 1/72 of an inch. On the screen of an 1186, a point is 1/80 of an inch. The size of the font used in this chapter is 10. For</p><p style="padding-left: 107pt;text-indent: 0pt;line-height: 13pt;text-align: left;">comparison, here is an example of a <span class="s3">TITAN</span>, <span class="s3">MRR</span>, size 12 font: <span class="s13">Able</span>.</p><p style="text-indent: 0pt;text-align: left;"><br/></p><h2 style="padding-top: 10pt;padding-left: 35pt;text-indent: 0pt;text-align: left;"><a name="a78">Fontdescriptors and FONTCREATE                                                               </a></h2><p style="padding-top: 9pt;padding-left: 107pt;text-indent: 0pt;text-align: left;">For Medley to use a font, it must have a font descriptor. A font descriptor is a data type in Interlisp-D that that holds all the information needed in order to use a particular font. When you print out a font descriptor, it looks like this:</p><p class="s3" style="padding-top: 6pt;padding-left: 143pt;text-indent: 0pt;text-align: left;">{FONTDESCRIPTOR}#74,45540</p><p style="padding-top: 7pt;padding-left: 107pt;text-indent: 0pt;text-align: left;">Fontdescriptors are created by the function <span class="s3">FONTCREATE </span>. For example,</p><p class="s3" style="padding-top: 7pt;padding-left: 143pt;text-indent: 0pt;text-align: left;">(FONTCREATE ’HELVETICA 12 ’BOLD)</p><p style="padding-top: 7pt;padding-left: 107pt;text-indent: 0pt;line-height: 107%;text-align: left;">creates a font descriptor that, when used by other functions, prints in <span class="s3">HELVETICA BOLD size 12</span>. Interlisp-D functions that work with font s expect a font descriptor produced</p><p style="padding-left: 107pt;text-indent: 0pt;line-height: 164%;text-align: left;">with the <span class="s3">FONTCREATE </span>function. The syntax of <span class="s3">FONTCREATE </span>is:</p><p class="s3" style="padding-top: 1pt;padding-left: 143pt;text-indent: 0pt;text-align: left;">(FONTCREATE <span class="s4">family size face</span><span class="p">)</span></p><p style="padding-top: 7pt;padding-left: 107pt;text-indent: 0pt;text-align: left;">Remember from the previous section, face is either a three element list (weight slope expansion), a three character atom abbreviation, e.g. <span class="s3">MRR</span>, or one of the mnemonic</p><p style="padding-left: 107pt;text-indent: 0pt;text-align: left;">abbreviations, e.g. <span class="s3">STANDARD </span>.</p><p style="padding-top: 7pt;padding-left: 107pt;text-indent: 0pt;line-height: 107%;text-align: left;">If <span class="s3">FONTCREATE </span>is asked to create a font descriptor that a J ready exists, the existing font descriptor is simply returned.</p><p style="text-indent: 0pt;text-align: left;"><br/></p><h2 style="padding-top: 4pt;padding-left: 35pt;text-indent: 0pt;text-align: left;"><a name="a79">Display Fonts                                                                                                    </a></h2><p style="padding-top: 9pt;padding-left: 107pt;text-indent: 0pt;text-align: left;">Display font s require files that contain the bitmaps used to print each character on the screen. All of these files have the extension <span class="s3">.DlSPLAYFONT </span>. The file name itself</p><p style="padding-left: 107pt;text-indent: 0pt;text-align: left;">describes the font style and size that uses its bitmaps. For example:</p><p class="s3" style="padding-top: 7pt;padding-left: 143pt;text-indent: 0pt;text-align: left;">MODERN12.DISPLAYFONT</p><p style="padding-top: 7pt;padding-left: 107pt;text-indent: 0pt;text-align: left;">contains bitmaps for the font family <span class="s3">MODERN </span>in size 12 points. Wherever you put your</p><p class="s3" style="padding-left: 106pt;text-indent: 0pt;line-height: 107%;text-align: left;">.DISPLAYFONT <span class="p">files, you should make this one of the values of the variable </span>DISPLAYFONTDIRECTORIES<span class="p">. Its value is a list of directories to search for the bitmap files for display font s. Usually, it contains the &quot;</span>FONT<span class="p">&quot; directory where you copied the bitmap files, and the current connected directory. The current connected directory is</span></p><p style="padding-left: 107pt;text-indent: 0pt;line-height: 107%;text-align: left;">specified by the atom <span class="s3">NIL</span>. When looking for a <span class="s3">.DISPLAYFONT </span>file, the system checks the <span class="s3">FONT </span>directory on the hard disk, then the current connected directory.</p><p style="padding-top: 7pt;padding-left: 107pt;text-indent: 0pt;text-align: left;">Figure 16-1 shows an example value of <span class="s3">DISPLAYFONTDIRECTORIES </span>:</p><p style="text-indent: 0pt;text-align: left;"><br/></p><p style="padding-left: 175pt;text-indent: 0pt;text-align: left;"><span><img width="367" height="314" alt="image" src="Image_105.gif"/></span></p><p style="text-indent: 0pt;text-align: left;"><br/></p><p style="padding-left: 170pt;text-indent: 0pt;text-align: left;">Figure 16-1. Value for the Atom <span class="s3">DISFLAYFONTDIRECTORIES</span></p><p style="text-indent: 0pt;text-align: left;"><br/></p><h2 style="padding-left: 35pt;text-indent: 0pt;text-align: left;"><a name="a80">InterPress Fonts                                                                                               </a></h2><p style="padding-top: 9pt;padding-left: 107pt;text-indent: 0pt;text-align: left;">InterPress is the format that is used by Xerox laser printers. These printers normally have a resolution that is much higher than that of the screen: 300 points per inch.</p><p style="padding-top: 7pt;padding-left: 107pt;text-indent: 0pt;text-align: left;">To format files appropriately for output on such a printer, Interlisp must know the</p><p style="padding-left: 106pt;text-indent: 0pt;text-align: left;">actual size for each character that is to be printed. This is done through the use of width files that contain font width information for font s in InterPress format. For InterPress font s, you should make the location of these files one of the values of the variable <span class="s3">INTERPRESSFONTDIRECTORIES</span>. Its value is a list of directories to search for the font widths files for InterPress font s. Figure 16-2 is an example value of <span class="s3">INTERPRESSFONTDIRECTORIES</span>:</p><p style="text-indent: 0pt;text-align: left;"><br/></p><p style="text-indent: 0pt;text-align: left;"><br/></p><p style="padding-left: 173pt;text-indent: 0pt;text-align: left;"><span><img width="367" height="314" alt="image" src="Image_106.gif"/></span></p><p style="text-indent: 0pt;text-align: left;"><br/></p><p style="padding-top: 4pt;padding-left: 170pt;text-indent: 0pt;text-align: left;">Figure 16-2. Value for Atom <span class="s3">INTERPRESSFONTDIRECTORIES</span></p><p style="text-indent: 0pt;text-align: left;"><br/></p><h2 style="padding-left: 35pt;text-indent: 0pt;text-align: left;"><a name="a81">Functions for Using Fonts                                                                               </a></h2><p style="text-indent: 0pt;text-align: left;"><br/></p><h3 style="padding-top: 4pt;padding-left: 71pt;text-indent: 0pt;text-align: left;"><a name="a82">FONTPR0P Looking at Font Properties</a></h3><p style="padding-top: 10pt;padding-left: 107pt;text-indent: 0pt;line-height: 106%;text-align: left;">It is possible to see the properties of a font descriptor. This s done with the function <span class="s3">FONTPROP</span>. For the following examples, the font descriptor used will be the one returned by the function <span class="s3">(DEFAULTFONT ’DISPLAY) </span>. In other words, the font descriptor</p><p style="padding-left: 107pt;text-indent: 0pt;text-align: left;">examined will be the default display font for the system.</p><p style="padding-top: 7pt;padding-left: 107pt;text-indent: 0pt;text-align: left;">There are many properties of a font that might be useful for you. Some of these are:</p><p style="text-indent: 0pt;text-align: left;"><br/></p><p class="s3" style="padding-left: 107pt;text-indent: 0pt;text-align: left;">FAMILY <span class="p">To see the family of a font descriptor, type:</span></p><p class="s3" style="padding-top: 7pt;padding-left: 179pt;text-indent: 0pt;text-align: left;">(FONTPROP (DEFAULTFONT ’DISPLAY) ’FAMILY)</p><p class="s3" style="padding-top: 7pt;padding-bottom: 1pt;padding-left: 179pt;text-indent: -72pt;line-height: 107%;text-align: left;">SIZE <span class="p">As above, this is a positive integer that determines the height of the font in printer’s points. As an example, the </span>SIZE <span class="p">of the current default font is:</span></p><p style="padding-left: 188pt;text-indent: 0pt;text-align: left;"><span><img width="333" height="99" alt="image" src="Image_107.gif"/></span></p><p style="text-indent: 0pt;text-align: left;"><br/></p><p style="padding-left: 177pt;text-indent: 0pt;text-align: left;">Figure 16-3. Value of Font Property <span class="s3">SIZE </span>of Default Font</p><p class="s3" style="padding-top: 7pt;padding-left: 107pt;text-indent: 0pt;text-align: left;">ASCENT <span class="p">The value of this property is a positive integer, the maximum height of</span></p><p style="padding-left: 179pt;text-indent: 0pt;text-align: left;">any character in the specified font from the baseline (bottom). The top of</p><p style="text-indent: 0pt;text-align: left;"><br/></p><p style="padding-top: 4pt;padding-left: 179pt;text-indent: 0pt;text-align: left;">the tallest character in the font, then, will be at <span class="s3">(BASELINE + ASCENT</span></p><p class="s3" style="padding-left: 179pt;text-indent: 0pt;text-align: left;">- l<span class="p">). For example, the </span>ASCENT <span class="p">of the default font is:</span></p><p style="text-indent: 0pt;text-align: left;"><br/></p><p style="padding-left: 190pt;text-indent: 0pt;text-align: left;"><span><img width="333" height="99" alt="image" src="Image_108.gif"/></span></p><p style="padding-top: 8pt;padding-left: 178pt;text-indent: 0pt;text-align: left;">Figure 16-4. Value Font Property <span class="s3">ASCENT </span>of Default Font</p><p class="s3" style="padding-top: 7pt;padding-left: 179pt;text-indent: -72pt;line-height: 107%;text-align: justify;">DESCENT <span class="p">The </span>DESCENT <span class="p">is an integer that specifies the maximum number of points that a character in the font descends below the baseline (e.g.,</span></p><p style="padding-left: 179pt;text-indent: 0pt;line-height: 106%;text-align: justify;">letters such as &quot;p&quot; and &quot;g&quot; have tails that descend below the baseline.). The bottom of the lowest character in the font will be at <span class="s3">(BASELINE - DESCENT)</span>. To see the <span class="s3">DESCENT </span>of the default font, type:</p><p class="s3" style="padding-top: 6pt;padding-left: 107pt;text-indent: 72pt;line-height: 170%;text-align: left;">(FONTPROP (DEFAULTFONT ’DISPLAY) ’DESCENT) HEIGHT HEIGHT <span class="p">is equal to </span>(DESCENT - ASCENT)<span class="p">.</span></p><p style="padding-left: 179pt;text-indent: -72pt;line-height: 106%;text-align: left;"><span class="s3">FACE </span>The value of this property is a list of the form (<i>weight slope expansion</i>). These are the weight, slope, and expansion described above. You can see each one separately, also. Use the property that you are interested in, <span class="s3">WEIGHT</span>, <span class="s3">SLOPE</span>, or <span class="s3">EXPANSION</span>, instead of <span class="s3">FACE </span>as the second argument to <span class="s3">FONTPROP</span>.</p><p style="padding-top: 7pt;padding-left: 107pt;text-indent: 0pt;text-align: left;">For other font properties, see Chapter 27 of the <i>IRM</i>.</p><p style="text-indent: 0pt;text-align: left;"><br/></p><h3 style="padding-left: 71pt;text-indent: 0pt;text-align: left;"><a name="a83">STRlNGWlDTH</a></h3><p style="padding-top: 10pt;padding-left: 107pt;text-indent: 0pt;text-align: left;">It is often useful to see how much space is required to print an expression in a particular font. The function <span class="s3">STRINGWIDTH </span>does this. For example, type:</p><p class="s3" style="padding-top: 7pt;padding-left: 143pt;text-indent: 0pt;text-align: left;">(STRINGWIDTH &quot;Hi there!&quot; (FONTCREATE ’GACHA 10 ’STANDARD))</p><p style="padding-top: 7pt;padding-left: 107pt;text-indent: 0pt;text-align: left;">The number returned is how many left to right pixels would be needed if the string</p><p style="padding-left: 107pt;text-indent: 0pt;text-align: left;">were printed in this font. (Note that this doesn’t just work for pixels on the screen, but for all kinds of streams. For more information about streams, see Chapter 15.) Compare the number returned from the example call with the number returned when you change <span class="s3">GACHA </span>to <span class="s3">TIMESROMAN</span>.</p><p style="text-indent: 0pt;text-align: left;"><br/></p><h3 style="padding-left: 71pt;text-indent: 0pt;text-align: left;"><a name="a84">DSPFONT - Changing the Font in One Window</a></h3><p style="padding-top: 10pt;padding-left: 107pt;text-indent: 0pt;line-height: 107%;text-align: left;">The function <span class="s3">DSPFONT </span>changes the font in a single window. As an example of its use, first create a window to write in. Type:</p><p class="s3" style="padding-top: 6pt;padding-left: 143pt;text-indent: 0pt;text-align: left;">(SETQ MY.FONT.WINDOW (CREATEW))</p><p style="padding-top: 7pt;padding-left: 107pt;text-indent: 0pt;text-align: left;">in the Executive Window. Sweep out the window. To print something in the default font, type:</p><p class="s3" style="padding-top: 6pt;padding-left: 143pt;text-indent: 0pt;text-align: left;">(PRINT ’HELLO MY.FONT.WINDOW)</p><p style="padding-top: 7pt;padding-left: 107pt;text-indent: 0pt;line-height: 107%;text-align: left;">in the Executive Window. Your window, <span class="s3">MY.FONT.WINDOW </span>, will look something like Figure 16-5:</p><p style="text-indent: 0pt;text-align: left;"><br/></p><p style="padding-left: 224pt;text-indent: 0pt;text-align: left;"><span><img width="230" height="172" alt="image" src="Image_109.gif"/></span></p><p style="padding-top: 7pt;padding-left: 145pt;text-indent: 0pt;text-align: left;">Figure 16-5. <span class="s3">HELLO</span>, Printed with the Default Font in <span class="s3">MY.FONT.WINDOW</span></p><p style="padding-top: 7pt;padding-left: 107pt;text-indent: 0pt;text-align: left;">Now change the font in the window. Type:</p><p class="s3" style="padding-top: 7pt;padding-left: 143pt;text-indent: 0pt;text-align: left;">(DSPFONT (FONTCREATE ’HELVETICA 12 ’BOLD) MY.FONT.WINDOW)</p><p style="padding-top: 7pt;padding-left: 107pt;text-indent: 0pt;line-height: 107%;text-align: left;">in the Executive Window. The arguments to <span class="s3">FONTCREATE </span>can be changed to create any desired font. Now retype the <span class="s3">PRINT </span>statement, and your window will look something</p><p style="padding-left: 107pt;text-indent: 0pt;text-align: left;">like Figure 16-6:</p><p style="text-indent: 0pt;text-align: left;"><br/></p><p style="padding-left: 193pt;text-indent: 0pt;text-align: left;"><span><img width="312" height="211" alt="image" src="Image_110.gif"/></span></p><p style="padding-top: 8pt;padding-left: 107pt;text-indent: 90pt;line-height: 164%;text-align: left;">Flgure 16-6. Font in <span class="s3">MY.FONT.WINDOW </span>Changed Notice the font has been changed.</p><p style="text-indent: 0pt;text-align: left;"><br/></p><h3 style="padding-left: 71pt;text-indent: 0pt;text-align: left;"><a name="a85">Personalizing Your Font Profile</a></h3><p style="padding-top: 10pt;padding-left: 107pt;text-indent: 0pt;text-align: left;">Medley keeps a list of default font specifications. This list is used to set the font in all windows where the font is not specifically set by the user (see the <span class="s3">DSPFONT </span>section</p><p style="padding-left: 107pt;text-indent: 0pt;text-align: left;">above). The value of the atom <span class="s3">FONTPROFILE </span>is this list (see Figure 16-7).</p><p style="padding-top: 7pt;padding-left: 107pt;text-indent: 0pt;line-height: 107%;text-align: left;">A <span class="s3">FONTPROFILE </span>is a list of font descriptions that certain system functions access when printing output. It contains specifications for big font s (used when pretty printing a</p><p style="padding-left: 107pt;text-indent: 0pt;text-align: left;">function to type the function name), small font s (used for printing comments in the editor), and various other font s.</p><p style="text-indent: 0pt;text-align: left;"><br/></p><p style="padding-left: 196pt;text-indent: 0pt;text-align: left;"><span><img width="308" height="443" alt="image" src="Image_111.gif"/></span></p><p style="text-indent: 0pt;text-align: left;"><br/></p><p style="padding-top: 4pt;padding-left: 205pt;text-indent: 0pt;text-align: left;">Figure 16-7. Value of the Atom <span class="s3">FONTPROFILE</span></p><p style="text-indent: 0pt;text-align: left;"><br/></p><p style="padding-left: 107pt;text-indent: 0pt;line-height: 107%;text-align: left;">The list is in the form of an association list. The font class names (e.g., <span class="s3">DEFAULTFONT </span>, or <span class="s3">BOLDFONT</span>) are the keywords of the association list. When a number follows the</p><p style="padding-left: 107pt;text-indent: 0pt;text-align: left;">keyword, it is the font number for that font class.</p><p style="padding-top: 7pt;padding-left: 107pt;text-indent: 0pt;text-align: left;">The lists following the font class name or number are the font specifications, in a form that the function <span class="s3">FONTCREATE </span>can use. The first font specification list affer a keyword</p><p style="padding-left: 107pt;text-indent: 0pt;line-height: 107%;text-align: left;">is the specification for printing to windows. The list<span class="s3">(GACHA 10) </span>in the figure above is an example of the default specification for the printing to windows. The last two font</p><p style="padding-left: 107pt;text-indent: 0pt;text-align: left;">specification lists are for Press and InterPress file printing, respectively. For more information, see Chapter 27 in the <i>IRM</i>.</p><p style="padding-top: 6pt;padding-left: 107pt;text-indent: 0pt;line-height: 106%;text-align: left;">Now, to change your default font settings, change the value of the variable <span class="s3">FONTPROFILE</span>. Medley has a list of profiles stored as the value of the atom <span class="s3">FONTDEFS </span>. Choose the profile to use, then install it as the default <span class="s3">FONTPROFILE </span>.</p><p style="padding-top: 7pt;padding-left: 106pt;text-indent: 0pt;line-height: 107%;text-align: left;">Evaluate the atom <span class="s3">FONTDEFS </span>and notice that each profile list begins with a keyword (see Figure 16-8). This keyword corresponds to the size of the font s included. <span class="s3">BIG</span>, <span class="s3">SMALL</span>, and <span class="s3">STANDARD </span>are some of the keywords for profiles on this list—<span class="s3">SMALL </span>and <span class="s3">STANDARD </span>appear in Figure 16-8.</p><p style="text-indent: 0pt;text-align: left;"><br/></p><p style="text-indent: 0pt;text-align: left;"><br/></p><p style="padding-left: 173pt;text-indent: 0pt;text-align: left;"><span><img width="367" height="202" alt="image" src="Image_112.gif"/></span></p><p style="text-indent: 0pt;text-align: left;"><br/></p><p style="padding-top: 4pt;padding-left: 197pt;text-indent: 0pt;text-align: left;">Figure 16-8. Part of Value of the Atom <span class="s3">FONTDEFS</span></p><p style="padding-top: 7pt;padding-left: 107pt;text-indent: 0pt;text-align: left;">To install a new profile from this list, follow the following example, but insert any keyword for <span class="s3">BIG</span>.</p><p style="padding-top: 7pt;padding-left: 107pt;text-indent: 0pt;line-height: 107%;text-align: left;">To use the profile with the keyword <span class="s3">BIG </span>instead of the standard one, evaluate the following expression:</p><p class="s3" style="padding-top: 6pt;padding-left: 143pt;text-indent: 0pt;text-align: left;">(FONTSET ’BIG))</p><p style="padding-top: 7pt;padding-left: 107pt;text-indent: 0pt;text-align: left;">Now the font s are permanently replaced. (That is, until another profile is installed.)</p></li><li><h1 style="padding-top: 3pt;padding-left: 70pt;text-indent: -35pt;text-align: left;"><a name="bookmark19">THE INSPECTOR</a></h1></li></ol></li></ul></li></ol><p style="padding-left: 35pt;text-indent: 0pt;line-height: 6pt;text-align: left;"><span><img width="640" height="8" alt="image" src="Image_113.png"/></span></p><p style="text-indent: 0pt;text-align: left;"><br/></p><p style="padding-left: 107pt;text-indent: 0pt;text-align: left;">The Inspector is a window-oriented tool designed to examine data structures. Because Medley is such a powerful programming environment, many types of data structures would be difficult to see in any other way.</p><p style="text-indent: 0pt;text-align: left;"><br/></p><h2 style="padding-left: 35pt;text-indent: 0pt;text-align: left;"><a name="a86">Calling the Inspector                                                                                        </a></h2><p style="text-indent: 0pt;text-align: left;"><br/></p><p style="padding-top: 4pt;padding-left: 107pt;text-indent: 0pt;text-align: left;">Take as an example an object defined through a sequence of pointers (i.e., a bitmap on the property list of a window on the property list of an atom inaprogram.)</p><p style="padding-top: 7pt;padding-left: 107pt;text-indent: 0pt;text-align: left;">To inspect an object named <span class="s3">NAME</span>, type:</p><p class="s3" style="padding-top: 7pt;padding-left: 143pt;text-indent: 0pt;text-align: left;">(INSPECT ’NAME)</p><p style="padding-top: 7pt;padding-left: 107pt;text-indent: 0pt;line-height: 107%;text-align: left;">If <span class="s3">NAME </span>has many possible interpretations, an option menu will appear. For example, in Interlisp-D, a litatom can refer to both an atom and a function. For example, if <span class="s3">NAME</span></p><p style="padding-left: 107pt;text-indent: 0pt;text-align: left;">was a record, had a function definition, and had properties on its property list, then the menu would appear as in Figure 17-1.</p><p style="text-indent: 0pt;text-align: left;"><br/></p><p style="text-indent: 0pt;text-align: left;"><br/></p><p style="padding-left: 263pt;text-indent: 0pt;text-align: left;"><span><img width="132" height="74" alt="image" src="Image_114.gif"/></span></p><p style="text-indent: 0pt;text-align: left;"><br/></p><p style="padding-left: 193pt;text-indent: 0pt;text-align: left;">Figure 17-1. Option Window for Inspection of <span class="s3">NAME</span></p><p style="padding-top: 7pt;padding-left: 107pt;text-indent: 0pt;line-height: 107%;text-align: left;">If <span class="s3">NAME </span>were a list, then the option menu shown in Figure 17.2 would appear. The options include:</p><ul id="l17"><li><p style="padding-top: 6pt;padding-left: 125pt;text-indent: -17pt;text-align: left;">Calling the display editor on the list</p></li><li><p style="padding-top: 7pt;padding-left: 125pt;text-indent: -17pt;text-align: left;">Calling the TTY editor (see Chapter 6)</p></li><li><p style="padding-top: 7pt;padding-left: 125pt;text-indent: -17pt;text-align: left;">Seeing the list’s elements in a display window. If you choose this option, each</p><p style="padding-left: 125pt;text-indent: 0pt;text-align: left;">element in the list will appear in the right column of the Inspector window. The left column of the Inspector window will be made up of numbers (see Figure 17-3).</p></li><li><p style="padding-top: 7pt;padding-left: 125pt;text-indent: -17pt;text-align: left;">Inspecting the list as a record type (this last option would produce a menu of known record types). If you choose a record type, the items in the list will appear in the</p><p style="padding-left: 125pt;text-indent: 0pt;text-align: left;">right column of the Inspector window. The left column of the Inspector window will be made up of the field names of the record.</p><p style="text-indent: 0pt;text-align: left;"><br/></p><p style="padding-left: 273pt;text-indent: 0pt;text-align: left;"><span><img width="100" height="67" alt="image" src="Image_115.gif"/></span></p><p style="padding-top: 5pt;padding-left: 196pt;text-indent: 0pt;text-align: left;">Figure 17-2. Option Window for Inspection of List</p><p style="text-indent: 0pt;text-align: left;"><br/></p><h2 style="padding-top: 4pt;padding-left: 35pt;text-indent: 0pt;text-align: left;"><a name="a87">Using the Inspector                                                                                          </a></h2><p style="text-indent: 0pt;text-align: left;"><br/></p><p style="padding-top: 4pt;padding-left: 107pt;text-indent: 0pt;text-align: justify;">If you choose to display your data structure in an edit window, simply edit the structure and exit in the normal manner when done. If you choose to display the data structure in an inspect window, then follow these instructions:</p></li><li><p style="padding-top: 7pt;padding-left: 125pt;text-indent: -17pt;text-align: left;">To select an item, point the mouse cursor at it and press the left mouse button.</p></li><li><p style="padding-top: 7pt;padding-left: 125pt;text-indent: -17pt;text-align: left;">Items in the right column of an Inspector window can themselves be inspected. To do this, choose the item, and press the center mouse button.</p></li><li><p style="padding-top: 7pt;padding-left: 125pt;text-indent: -17pt;text-align: left;">Items in the right column of an Inspector window can be changed. To do this, choose the corresponding item in the left column, and press the center mouse button. You</p></li></ul><p style="padding-left: 125pt;text-indent: 0pt;text-align: left;">will be prompted for the new value, and the item will be changed. The sequence of steps is shown in Figure 17-3.</p><p style="text-indent: 0pt;text-align: left;"><br/></p><p style="padding-left: 107pt;text-indent: 0pt;text-align: left;">The item in the lefl column is selected, and the middle mouse button pressed. Select the</p><p class="s3" style="padding-left: 107pt;text-indent: 0pt;text-align: left;">SET <span class="p">option from the menu that pops up.</span></p><p style="padding-top: 7pt;padding-left: 107pt;text-indent: 0pt;text-align: left;">You will then be prompted for the new value. Type it in.</p><p style="padding-top: 7pt;padding-bottom: 2pt;padding-left: 107pt;text-indent: 0pt;text-align: left;">The item in the right column is updated to the value of what you typed in.</p><p style="padding-left: 107pt;text-indent: 0pt;text-align: left;"><span><img width="203" height="60" alt="image" src="Image_116.gif"/></span></p><p style="text-indent: 0pt;text-align: left;"><br/></p><p style="padding-left: 234pt;text-indent: 0pt;text-align: left;"><span><img width="203" height="107" alt="image" src="Image_117.gif"/></span></p><p style="text-indent: 0pt;text-align: left;"><br/></p><p style="padding-left: 361pt;text-indent: 0pt;text-align: left;"><span><img width="203" height="60" alt="image" src="Image_118.gif"/></span></p><p style="padding-top: 6pt;padding-left: 113pt;text-indent: 0pt;text-align: left;">Figure 17-3. Steps Involved in Changing Value in Right Column of Inspector Window</p><p style="text-indent: 0pt;text-align: left;"><br/></p><h2 style="padding-left: 35pt;text-indent: 0pt;text-align: left;"><a name="a88">Inspector Example                                                                                           </a></h2><p style="text-indent: 0pt;text-align: left;"><br/></p><p style="padding-top: 4pt;padding-left: 107pt;text-indent: 0pt;line-height: 106%;text-align: left;">This example will use ideas discussed in Chapter 21. An example, <span class="s3">ANlMALGRAPH </span>, is created in that section. You do not need to know the details of how it was created, but the structure is examined in this chapter.</p><p style="padding-top: 6pt;padding-left: 107pt;text-indent: 0pt;text-align: left;">If you type</p><p class="s3" style="padding-top: 7pt;padding-left: 143pt;text-indent: 0pt;text-align: left;">(INSPECT ANIMAL.GRAPH)</p><p style="padding-top: 7pt;padding-left: 107pt;text-indent: 0pt;text-align: left;">and then choose the Inspect option from the menu, a display appears as shown in</p><p style="padding-left: 107pt;text-indent: 0pt;line-height: 107%;text-align: left;">Figure 17-4. <span class="s3">ANlMAL.GRAPH </span>is being inspected as a list. Note the numbers in the left column of the inspectorwindow.</p><p style="text-indent: 0pt;text-align: left;"><span><img width="303" height="188" alt="image" src="Image_119.gif"/></span></p><ol id="l18"><li><p class="s6" style="padding-top: 3pt;padding-left: 457pt;text-indent: -457pt;text-align: right;">THE INSPECTOR</p><p style="padding-left: 35pt;text-indent: 0pt;line-height: 1pt;text-align: left;"><span><img width="665" height="1" alt="image" src="Image_120.png"/></span></p><p style="text-indent: 0pt;text-align: left;"><br/></p><p style="padding-left: 107pt;text-indent: 43pt;line-height: 20pt;text-align: left;">Figure 17-4. Inspector Window For <span class="s3">ANIMAL.GRAPH </span>, Inspected as List If you choose the &quot;As A Record&quot; option, and choose &quot;<span class="s3">GRAPH</span>&quot; from the menu that</p><p style="padding-top: 1pt;padding-bottom: 1pt;padding-left: 107pt;text-indent: 0pt;text-align: left;">appears, the inspector window looks like Figure 17-5. Note the fieldnames in the left column of the inspector window.</p><p style="padding-left: 147pt;text-indent: 0pt;text-align: left;"><span><img width="435" height="202" alt="image" src="Image_121.gif"/></span></p><p style="text-indent: 0pt;text-align: left;"><br/></p><p style="padding-left: 111pt;text-indent: 0pt;text-align: center;">Figure 17-5. Inspector Window for <span class="s3">ANlMAL.GRAPH </span>,  Inspected as Instance of <span class="s3">GRAPH</span></p><p style="padding-left: 111pt;text-indent: 0pt;text-align: center;">Record</p><p style="text-indent: 0pt;text-align: left;"><br/></p><p style="padding-left: 107pt;text-indent: 0pt;line-height: 107%;text-align: left;">The remaining examples will use <span class="s3">ANlMAL.GRAPH </span>inspected as a list. When the first item in the Inspector window is chosen with the leff mouse button, the Inspector</p><p style="padding-left: 107pt;text-indent: 0pt;line-height: 11pt;text-align: left;">window looks like Figure 17-6.</p><p style="text-indent: 0pt;text-align: left;"><br/></p><p style="padding-left: 197pt;text-indent: 0pt;text-align: left;"><span><img width="303" height="188" alt="image" src="Image_122.gif"/></span></p><p style="text-indent: 0pt;text-align: left;"><br/></p><p style="padding-top: 4pt;padding-left: 127pt;text-indent: 0pt;text-align: left;">Figure 17-6. Inspector Window for <span class="s3">ANlMAL.GRAPH </span>With First Element Selected</p><p style="padding-top: 7pt;padding-left: 107pt;text-indent: 0pt;text-align: left;">When you use the middle mouse button to inspect the selected list element, the display looks like Figure 17-7.</p><p style="text-indent: 0pt;text-align: left;"><br/></p><p style="padding-left: 184pt;text-indent: 0pt;text-align: left;"><span><img width="338" height="188" alt="image" src="Image_123.gif"/></span></p><p style="padding-top: 4pt;padding-left: 111pt;text-indent: 0pt;text-align: center;">Figure 17-7. Inspector Window for <span class="s3">ANlMAL.GRAPH </span>and for  First Element of</p><p class="s3" style="padding-left: 111pt;text-indent: 0pt;text-align: center;">ANIMAL.GRAPH</p><p style="text-indent: 0pt;text-align: left;"><br/></p><p style="padding-left: 107pt;text-indent: 0pt;text-align: left;">How you can see that six items make up the list, and you can further choose to inspect one of these items. Notice that this is also inspected as a list. As usual, it could also</p><p style="padding-left: 107pt;text-indent: 0pt;text-align: left;">have been inspected as a record.</p><p style="padding-top: 7pt;padding-left: 107pt;text-indent: 0pt;line-height: 106%;text-align: left;">Select item 5 - <span class="s3">MAMMAL DOG CAT </span>- with the left mouse button. Press the middle mouse button. Choose &quot;Inspect&quot; to inspect your choice as a list. The Inspector now displays the values of the structure that makes up <span class="s3">MAMMAL DOG CAT </span>. (See Figure 17-8.)</p><p style="text-indent: 0pt;text-align: left;"><br/></p><p style="padding-left: 235pt;text-indent: 0pt;text-align: left;"><span><img width="201" height="188" alt="image" src="Image_124.gif"/></span></p><p style="padding-top: 4pt;padding-left: 285pt;text-indent: -175pt;line-height: 107%;text-align: left;">Figure 17-8. Inspector Window for Element S From Figure 17.7 That Begins <span class="s3">((MAMMAL DOG CAT)</span>.</p></li><li><h1 style="padding-top: 3pt;padding-left: 70pt;text-indent: -35pt;text-align: left;"><a name="bookmark20">MASTERSCOPE</a></h1><p style="padding-left: 35pt;text-indent: 0pt;line-height: 6pt;text-align: left;"><span><img width="640" height="8" alt="image" src="Image_125.png"/></span></p><p style="text-indent: 0pt;text-align: left;"><br/></p><p style="padding-top: 15pt;padding-left: 107pt;text-indent: 0pt;text-align: left;">Masterscope is a tool that allows you to quickly examine the structure of complex</p><p style="padding-left: 107pt;text-indent: 0pt;text-align: left;">programs. As your programs enlarge, you may forget what variables are global, what functions call other functions, and so forth. Masterscope keeps track of this for you.</p><p style="padding-top: 7pt;padding-left: 107pt;text-indent: 0pt;text-align: left;">To use Masterscope, first load <span class="s3">MASTERSCOPE.DFASL </span>and <span class="s3">EXPORTS.ALL</span>.</p><p style="padding-top: 7pt;padding-left: 107pt;text-indent: 0pt;line-height: 107%;text-align: left;">Suppose that <span class="s3">JVTO </span>is the name of a file that contains many of the functions involved in a complex system and that <span class="s3">LINTRANS </span>is the file containing the remaining functions. The first step is to ask Masterscope to analyze these files. These files must be loaded.</p><p style="padding-left: 107pt;text-indent: 0pt;line-height: 11pt;text-align: left;">All Masterscope queries and commands begin with a period followed by a space, as in</p><p class="s3" style="padding-top: 7pt;padding-left: 143pt;text-indent: 0pt;text-align: left;">. ANALYZE FNS ON MSCOPEDEMO</p><p style="padding-top: 7pt;padding-left: 107pt;text-indent: 0pt;line-height: 107%;text-align: left;">The <span class="s3">ANALYZE </span>process takes a while, so the system prints a period on the screen for each function it has analyzed. (See Figure 18-1)</p><p style="text-indent: 0pt;text-align: left;"><br/></p><p style="padding-left: 136pt;text-indent: 0pt;text-align: left;"><span><img width="402" height="85" alt="image" src="Image_126.gif"/></span></p><p style="text-indent: 0pt;text-align: left;"><br/></p><p style="padding-left: 111pt;text-indent: 0pt;text-align: center;">Figure 18-1. Executive Window After Analyzing  Files</p><p style="padding-top: 7pt;padding-left: 106pt;text-indent: 0pt;line-height: 107%;text-align: left;">If you are not quite sure what functions were just analyzed, type the file’s <span class="s3">COMS </span>variable (see the File Variables section in Chapter 7) into the Executive Window. The names of</p><p style="padding-left: 107pt;text-indent: 0pt;line-height: 11pt;text-align: left;">the functions stored on the file will be a part of the value of this variable.</p><p style="padding-top: 7pt;padding-left: 107pt;text-indent: 0pt;text-align: left;">A variety of commands are now possible, all referring to individual functions within the analyzed files. Substantial variation in exact wording is permitted. Some commands</p><p style="padding-left: 107pt;text-indent: 0pt;text-align: left;">are:</p><p class="s3" style="padding-top: 7pt;padding-left: 106pt;text-indent: 0pt;text-align: left;">. SHOW PATHS FROM ANY TO ANY</p><p class="s3" style="padding-left: 106pt;text-indent: 0pt;text-align: left;">. EDIT WHERE ANY CALLS <span class="s4">functionname</span></p><p class="s3" style="padding-left: 106pt;text-indent: 0pt;text-align: left;">. EDIT WHERE ANY USES <span class="s4">variablename</span></p><p class="s3" style="padding-left: 106pt;text-indent: 0pt;text-align: left;">. WHO CALLS WHOM</p><p class="s3" style="padding-left: 106pt;text-indent: 0pt;text-align: left;">. WHO CALLS <span class="s4">functionname</span></p><p class="s3" style="padding-left: 106pt;text-indent: 0pt;text-align: left;">. BY WHOM IS <span class="s4">functionname </span>CALLED</p><p class="s3" style="padding-left: 107pt;text-indent: 0pt;text-align: left;">. WHO USES <span class="s4">variablename </span>AS FIELD</p><p style="text-indent: 0pt;text-align: left;"><br/></p><p style="padding-left: 106pt;text-indent: 0pt;text-align: left;">Note that the function is being called to invoke each command. Refer to the <i>IRM </i>for commands not listed here.</p><p style="padding-top: 7pt;padding-left: 106pt;text-indent: 0pt;line-height: 107%;text-align: left;">Figure 18-2 shows the Executive Window after the commands <span class="s3">. WHO CALLS GobbleDump </span>and <span class="s3">. WHO DOES JVL inScan CALL</span>.</p><p style="text-indent: 0pt;text-align: left;"><br/></p><p style="padding-left: 135pt;text-indent: 0pt;text-align: left;"><span><img width="402" height="86" alt="image" src="Image_127.gif"/></span></p><p style="text-indent: 0pt;text-align: left;"><br/></p><p style="padding-left: 111pt;text-indent: 0pt;text-align: center;">Figure 18-2. Sample Masterscope Output</p><p class="s7" style="padding-top: 3pt;padding-left: 35pt;text-indent: 0pt;text-align: left;"> 18. MASTERSCOPE                                                                                                                                                  </p><p style="text-indent: 0pt;text-align: left;"><br/></p><h2 style="padding-top: 4pt;padding-left: 35pt;text-indent: 0pt;text-align: left;"><a name="a89">SHOW DATA Command and GRAPHER                                                        </a></h2><p style="text-indent: 0pt;text-align: left;"><br/></p><p style="padding-top: 4pt;padding-left: 107pt;text-indent: 0pt;line-height: 107%;text-align: left;">When the library package <span class="s3">GRAPHER </span>is loaded (to load this package, type <span class="s3">(FILESLOAD GRAPHER)</span>), Masterscope’s <span class="s3">SHOWPATHS </span>command is modified. The command will be</p><p style="padding-left: 107pt;text-indent: 0pt;text-align: left;">changed to generate a tree structure showi ng how the program’s functions interact instead of a tabular printout into the Executive window. For example, typing:</p><p class="s3" style="padding-top: 6pt;padding-left: 143pt;text-indent: 0pt;text-align: left;">. SHOW PATHS FROM ProcessEND</p><p style="text-indent: 0pt;text-align: left;"><br/></p><p style="padding-left: 107pt;text-indent: 0pt;text-align: left;">produced the display shown in Figure 18-3.</p><p style="text-indent: 0pt;text-align: left;"><br/></p><p style="padding-left: 126pt;text-indent: 0pt;text-align: left;"><span><img width="428" height="152" alt="image" src="Image_128.gif"/></span></p><p style="text-indent: 0pt;text-align: left;"><br/></p><p style="padding-left: 111pt;text-indent: 0pt;text-align: center;">Figure 18-3. <span class="s3">SHOW PATHS </span>Display Example</p><p style="text-indent: 0pt;text-align: left;"><br/></p><p style="padding-left: 107pt;text-indent: 0pt;text-align: left;">All the functions in the display are part of this analyzed file or a previously analyzed file. Boxed functions indicate that the function name has been duplicated in another place on the display.</p><p style="text-indent: 0pt;text-align: left;"><br/></p><p style="padding-left: 107pt;text-indent: 0pt;text-align: left;">Selecting any function name on the display will pretty print the function in a window (see Figure 18-4).</p><p style="text-indent: 0pt;text-align: left;"><br/></p><p style="padding-left: 126pt;text-indent: 0pt;text-align: left;"><span><img width="428" height="152" alt="image" src="Image_129.gif"/></span></p><p style="text-indent: 0pt;text-align: left;"><br/></p><p style="text-indent: 0pt;text-align: left;"><br/></p><p style="padding-left: 177pt;text-indent: 0pt;text-align: left;"><span><img width="356" height="86" alt="image" src="Image_130.gif"/></span></p><p style="text-indent: 0pt;text-align: left;"><br/></p><p style="padding-left: 111pt;text-indent: 0pt;text-align: center;">Figure 18-4. Browser  Printout Example</p><p style="text-indent: 0pt;text-align: left;"><br/></p><p style="padding-top: 7pt;padding-left: 107pt;text-indent: 0pt;text-align: left;">Selecting it again with the left mouse button will produce a desription of the function’s role in the overall system (see Figure 18-5).</p><ol id="l19"><li><p class="s6" style="padding-top: 3pt;padding-left: 462pt;text-indent: -462pt;text-align: right;">MASTERSCOPE</p><p style="padding-left: 35pt;text-indent: 0pt;line-height: 1pt;text-align: left;"><span><img width="665" height="1" alt="image" src="Image_131.png"/></span></p><p style="text-indent: 0pt;text-align: left;"><br/></p><p style="padding-left: 110pt;text-indent: 0pt;text-align: left;"><span><img width="428" height="152" alt="image" src="Image_132.gif"/></span></p><p style="text-indent: 0pt;text-align: left;"><br/></p><p style="padding-left: 188pt;text-indent: 0pt;text-align: left;"><span><img width="259" height="106" alt="image" src="Image_133.gif"/></span></p><p style="text-indent: 0pt;text-align: left;"><br/></p><p style="padding-top: 4pt;padding-left: 212pt;text-indent: 0pt;text-align: left;">Figure 18-5. Browser Description Example</p></li><li><h1 style="padding-top: 3pt;padding-left: 70pt;text-indent: -35pt;text-align: left;"><a name="bookmark21">WHERE DOES ALL THE TIME GO? SPY</a></h1><p style="padding-left: 35pt;text-indent: 0pt;line-height: 6pt;text-align: left;"><span><img width="640" height="8" alt="image" src="Image_134.png"/></span></p><p style="text-indent: 0pt;text-align: left;"><br/></p><p class="s3" style="padding-left: 107pt;text-indent: 0pt;line-height: 107%;text-align: left;">SPY <span class="p">is an Lisp library package that shows you where you spend your time when you run your system. It is easy to learn, and very useful when trying to make programs run</span></p><p style="padding-left: 107pt;text-indent: 0pt;line-height: 11pt;text-align: left;">faster.</p><p style="text-indent: 0pt;text-align: left;"><br/></p><h2 style="padding-left: 35pt;text-indent: 0pt;text-align: left;"><a name="a90">How to Use Spy with the SPY Window                                                           </a></h2><p style="text-indent: 0pt;text-align: left;"><br/></p><p style="padding-top: 4pt;padding-left: 107pt;text-indent: 0pt;line-height: 107%;text-align: left;">The function <span class="s3">SPY.BUTTON </span>brings up a small window which you will be prompted to position. Using the mouse buttons in this window controls the action of the <span class="s3">SPY</span></p><p style="padding-bottom: 3pt;padding-left: 107pt;text-indent: 0pt;text-align: left;">program. When you are not using <span class="s3">SPY</span>, the window appears as in Figure 19.1.</p><p style="padding-left: 276pt;text-indent: 0pt;text-align: left;"><span><img width="85" height="89" alt="image" src="Image_135.gif"/></span></p><p style="padding-top: 9pt;padding-left: 111pt;text-indent: 0pt;text-align: center;">Figure 19.1. <span class="s3">SPY </span>Window When <span class="s3">SPY </span>is Not Being Used</p><p style="text-indent: 0pt;text-align: left;"><br/></p><p style="padding-left: 107pt;text-indent: 0pt;text-align: left;">To use <span class="s3">SPY</span>, click either the left or middle mouse button with the mouse cursor in the</p><p class="s3" style="padding-left: 107pt;text-indent: 0pt;line-height: 107%;text-align: left;">SPY <span class="p">window. The window will appear as in Figure 19.2, and means that </span>SPY <span class="p">is accumulating data about your program.</span></p><p style="text-indent: 0pt;text-align: left;"><br/></p><p style="padding-left: 278pt;text-indent: 0pt;text-align: left;"><span><img width="85" height="89" alt="image" src="Image_136.gif"/></span></p><p style="text-indent: 0pt;text-align: left;"><br/></p><p style="padding-left: 111pt;text-indent: 0pt;text-align: center;">Figure 19.2. <span class="s3">SPY </span>Window When <span class="s3">SPY </span>is Being Used</p><p style="text-indent: 0pt;text-align: left;"><br/></p><p style="padding-left: 107pt;text-indent: 0pt;text-align: left;">To turn off <span class="s3">SPY </span>after the program has run, again click a mouse button in the <span class="s3">SPY</span></p><p style="padding-left: 107pt;text-indent: 0pt;text-align: left;">window. The eye closes, and you are asked to position another window. This window contains <span class="s3">SPY</span>’s results. An example of the resulting window is shown in Figure 19.3.</p><p class="s7" style="padding-top: 3pt;padding-left: 35pt;text-indent: 0pt;text-align: left;"> 19. WHERE DOES ALL THE TIME GO? SPY                                                                                                          </p><p style="text-indent: 0pt;text-align: left;"><br/></p><p style="padding-left: 108pt;text-indent: 0pt;text-align: left;"><span><img width="477" height="204" alt="image" src="Image_137.gif"/></span></p><p style="text-indent: 0pt;text-align: left;"><br/></p><p style="padding-top: 4pt;padding-left: 195pt;text-indent: 0pt;text-align: left;">Figure 19.3. Window Produced After Running <span class="s3">SPY</span></p><p style="text-indent: 0pt;text-align: left;"><br/></p><p style="padding-left: 107pt;text-indent: 0pt;text-align: justify;">This window is scrollable horizontally and vertically. This is useful, since the whole tree does not fit in the window. If a part that you want to see is not shown, you can scroll the window to show the part you want to see.</p><p style="text-indent: 0pt;text-align: left;"><br/></p><h2 style="padding-left: 35pt;text-indent: 0pt;text-align: left;"><a name="a91">How to Use SPY from the Lisp Top Level                                                      </a></h2><p style="text-indent: 0pt;text-align: left;"><br/></p><p class="s3" style="padding-top: 4pt;padding-left: 107pt;text-indent: 0pt;line-height: 107%;text-align: left;">SPY <span class="p">can also be run while a specific function or system is being used. To do this, type the function </span>WITH.SPY<span class="p">:</span></p><p class="s3" style="padding-top: 7pt;padding-left: 143pt;text-indent: 0pt;text-align: left;">(WITH.SPY <span class="s4">form</span>)</p><p style="padding-top: 7pt;padding-left: 107pt;text-indent: 0pt;text-align: left;">The expression used for form should be the call to begin running the function or system that SPY is to watch. If you watch the <span class="s3">SPY </span>window, the eye will blink! To see your</p><p style="padding-left: 107pt;text-indent: 0pt;text-align: left;">results, run the function <span class="s3">SPY.TREE</span>. To do this, type:</p><p class="s3" style="padding-top: 7pt;padding-left: 143pt;text-indent: 0pt;text-align: left;">(SPY.TREE)</p><p style="padding-top: 7pt;padding-left: 107pt;text-indent: 0pt;line-height: 107%;text-align: left;">The results of the last running of <span class="s3">SPY </span>will be displayed. If you do this, and <span class="s3">SPY.TREE </span>returns (no <span class="s3">SPY </span>samples have been gathered), your function ran too fast for <span class="s3">SPY </span>to follow.</p><p style="text-indent: 0pt;text-align: left;"><br/></p><h2 style="padding-left: 35pt;text-indent: 0pt;text-align: left;"><a name="a92">Interpreting SPY’s Results                                                                              </a></h2><p style="padding-top: 9pt;padding-left: 107pt;text-indent: 0pt;text-align: left;">Each node in the tree is a box that contains, first, the percentage of time spent running that particular function, and second, the function name. There are two modes that can be used to display this tree.</p><p style="padding-top: 7pt;padding-left: 107pt;text-indent: 0pt;text-align: left;">The default mode is cumulative. In this mode, each percentage is the amount of time</p><p style="padding-left: 107pt;text-indent: 0pt;text-align: left;">that function spent on top of the stack, plus the amount of time spent by the functions it calls. The second mode is individual. To change the mode to individual, point to the title bar of the window, and press the middle mouse button. Choose <span class="s3">Individual </span>from the menu that appears. In this mode, the percentage shown is the amount of time the</p><p style="padding-left: 107pt;text-indent: 0pt;text-align: left;">function spent on the top of the stack.</p><p style="padding-top: 7pt;padding-left: 107pt;text-indent: 0pt;text-align: left;">To look at a single branch of the tree, point with the mouse cursor at one of the nodes of the tree, and press the right mouse button. From the menu that appears, choose the</p><p style="text-indent: 0pt;text-align: left;"><br/></p><p style="padding-left: 35pt;text-indent: 0pt;line-height: 1pt;text-align: left;"><span><img width="665" height="1" alt="image" src="Image_138.png"/></span></p><p class="s8" style="padding-left: 35pt;text-indent: 0pt;text-align: left;">19-2 <span class="s6">Medley for the Novice, Release 2.0</span></p><p class="s7" style="padding-top: 3pt;padding-left: 35pt;text-indent: 0pt;text-align: left;">                                                                                                           19. WHERE DOES ALL THE TIME GO? SPY</p><p style="text-indent: 0pt;text-align: left;"><br/></p><p style="padding-top: 4pt;padding-left: 107pt;text-indent: 0pt;line-height: 107%;text-align: left;">option <span class="s3">SubTree</span>. Another <span class="s3">SPY </span>window will appear, with just this branch of the tree in it.</p><p style="padding-top: 6pt;padding-left: 107pt;text-indent: 0pt;text-align: left;">Another way to focu s within the tree is to remove branches from the tree. To do this, point to the node at the top of the branch you would like to delete. Press the middle mouse button, and choose <span class="s3">Delete </span>from the menu that appears.</p><p style="padding-top: 7pt;padding-left: 107pt;text-indent: 0pt;text-align: left;">There are also different amounts of &quot;merging&quot; of functions that can be done in the</p><p style="padding-left: 107pt;text-indent: 0pt;text-align: left;">window. A function can be called by another function more than once. The amount of merging determines where the subfunction, and the functions that it calls, appear in the tree, and how often. (For a detailed explanation of merging, see the <i>Lisp Library Packages Manual</i>.)</p></li><li><h1 style="padding-top: 3pt;padding-left: 70pt;text-indent: -35pt;text-align: left;"><a name="bookmark22">FREE MENUS</a></h1><p style="padding-left: 35pt;text-indent: 0pt;line-height: 6pt;text-align: left;"><span><img width="640" height="8" alt="image" src="Image_139.png"/></span></p><p style="text-indent: 0pt;text-align: left;"><br/></p><p style="padding-top: 15pt;padding-left: 107pt;text-indent: 0pt;text-align: left;">Free Menu is a library package that is even more flexible than the regular menu package. It allows you to create menus with different types of items in them, and</p><p style="padding-left: 107pt;text-indent: 0pt;text-align: left;">format s them as you require. Free menus are particularly useful when you want a &quot;fill in the form&quot; type interaction with the user.</p><p style="padding-top: 7pt;padding-left: 107pt;text-indent: 0pt;text-align: left;">Each menu item is described with a list of properties and values. The following example will give you an idea of the structure of the description list, and some of your options.</p><p style="padding-left: 107pt;text-indent: 0pt;text-align: left;">The most commonly used properties, and each type of menu item will be described in the Parts of a Free Menu Item and Types of Free Menu Items section below.</p><p style="text-indent: 0pt;text-align: left;"><br/></p><h2 style="padding-left: 35pt;text-indent: 0pt;text-align: left;"><a name="a93">Free Menu Example                                                                                          </a></h2><p style="padding-top: 9pt;padding-left: 107pt;text-indent: 0pt;text-align: left;">Free menus can be created and formatted automatically! It is done with the function</p><p class="s3" style="padding-left: 107pt;text-indent: 0pt;text-align: left;">FM.FORMATMENU<span class="p">. This function takes one argument, a description of the menu. The</span></p><p style="padding-left: 107pt;text-indent: 0pt;text-align: left;">description is a list of lists; each internal list describes one row of the free menu. A free menu row can have more than one item in it, so there are really lists of lists of lists! It really isn’t hard, though, as you can see from the following example:</p><p class="s3" style="padding-top: 7pt;padding-left: 167pt;text-indent: -24pt;line-height: 88%;text-align: left;">(SETQ ExampleMenu (FM.FORMATMENU</p><p class="s3" style="padding-left: 215pt;text-indent: -24pt;line-height: 88%;text-align: left;">’(((TYPE TITLE LABEL TitlesDoNothing) TYPE 3STATE LABEL Example3State))</p><p class="s3" style="padding-left: 203pt;text-indent: 0pt;line-height: 10pt;text-align: left;">((TYPE EDITSTART LABEL PressToStartEditing</p><p class="s3" style="padding-left: 209pt;text-indent: 96pt;line-height: 88%;text-align: left;">ITEMS (EDITEM)) (TYPE EDIT ID EDITEM LABEL &quot;&quot;))</p><p class="s3" style="padding-left: 191pt;text-indent: 0pt;line-height: 10pt;text-align: left;">(WINDOWPROPS TITLE &quot;Example Does Nothing&quot;))))</p><p style="padding-top: 5pt;padding-left: 107pt;text-indent: 0pt;line-height: 107%;text-align: justify;">The first row has two items in it: one is a <span class="s3">TITLE</span>, and the second is a <span class="s3">3STATE </span>item. The second row also has two items. The second, the <span class="s3">EDIT </span>item, is invisible, because its label is an empty string. The caret will appear for editing, however, if the <span class="s3">EDITSTART </span>item is chosen. Windowprops can appear as part of the description of the menu, because a</p><p style="padding-left: 107pt;text-indent: 0pt;line-height: 11pt;text-align: justify;">menu is, affer all, just a special window. You can specify not only the title with</p><p class="s3" style="padding-left: 107pt;text-indent: 0pt;text-align: justify;">WINDOWPROPS<span class="p">, but also the position of the free menu, using the &quot;left&quot; and &quot;bottom&quot;</span></p><p style="padding-left: 106pt;text-indent: 0pt;text-align: left;">properties, and the width of the border in pixels, with the &quot;border&quot; property. Evaluating this expression will return a window. You can see the menu by using the function <span class="s3">OPENW</span>. The following example illustrates this:</p><p style="text-indent: 0pt;text-align: left;"><br/></p><p style="padding-left: 235pt;text-indent: 0pt;text-align: left;">Figure 20.1. Example Free Menu</p><p style="text-indent: 0pt;text-align: left;"><br/></p><p style="padding-left: 107pt;text-indent: 0pt;text-align: justify;">The next example shows you what the menu looks like after the <span class="s3">EDITSTART </span>item,</p><p class="s3" style="padding-left: 106pt;text-indent: 0pt;text-align: justify;">PressToStartEditing<span class="p">, has been chosen.</span></p><p style="text-indent: 0pt;text-align: left;"><br/></p><p style="padding-top: 4pt;padding-left: 185pt;text-indent: 0pt;text-align: left;">Figure 20.2. Free menu after <span class="s3">EDITSTART </span>Item Chosen</p><p style="padding-top: 7pt;padding-left: 107pt;text-indent: 0pt;line-height: 107%;text-align: left;">The following example shows the menu with the <span class="s3">3STATE </span>item in its <span class="s3">T </span>state, with the item highlighted. (In the previous bitmaps, it was in its neutral state.)</p><p style="padding-left: 35pt;text-indent: 0pt;line-height: 11pt;text-align: left;">.</p><p style="text-indent: 0pt;text-align: left;"><br/></p><p style="padding-top: 4pt;padding-left: 182pt;text-indent: 0pt;text-align: left;">Figure 20.3. Free menu with <span class="s3">3STATE </span>Item in its <span class="s3">T </span>State</p><p style="text-indent: 0pt;text-align: left;"><br/></p><p style="padding-top: 4pt;padding-left: 107pt;text-indent: 0pt;line-height: 107%;text-align: left;">Finally, Figure 20.4 shows the <span class="s3">3STATE </span>item in its <span class="s3">NIL </span>state, with a diagonal line through the item</p><p style="text-indent: 0pt;text-align: left;"><br/></p><p style="padding-left: 169pt;text-indent: 0pt;text-align: left;">Figure 20.4 Free menu with the <span class="s3">3STATE </span>item in its <span class="s3">NIL </span>State</p><p style="padding-top: 7pt;padding-left: 107pt;text-indent: 0pt;text-align: left;">If you would like to specify the layout yourself, you can do that too. See the <i>Lisp Library Packages Manual </i>for more information.</p><p style="text-indent: 0pt;text-align: left;"><br/></p><h2 style="padding-left: 35pt;text-indent: 0pt;text-align: left;"><a name="a94">Parts of a Free Menu Item                                                                                </a></h2><p style="padding-top: 9pt;padding-left: 107pt;text-indent: 0pt;text-align: left;">There are eight different types of items that you can use in a free menu. No matter</p><p style="padding-left: 107pt;text-indent: 0pt;text-align: left;">what type, the menu item is easily described by a list of properties, and values. Some of the properties you will use most often are listed below:</p><p style="text-indent: 0pt;text-align: left;"><br/></p><p class="s3" style="padding-left: 191pt;text-indent: -84pt;line-height: 107%;text-align: left;">LABEL <span class="p">Required for every type of menu item. It is the atom, string, or bitmap that appears as a menu selection.</span></p><p class="s3" style="padding-top: 6pt;padding-left: 191pt;text-indent: -84pt;line-height: 107%;text-align: left;">TYPE <span class="p">One of eight types of menu items. Each of these are described in the section below.</span></p><p class="s3" style="padding-top: 6pt;padding-left: 191pt;text-indent: -84pt;line-height: 107%;text-align: left;">MESSAGE <span class="p">The message that appears in the prompt window if a mouse button is held down over the item.</span></p><p class="s3" style="padding-top: 6pt;padding-left: 191pt;text-indent: -84pt;line-height: 107%;text-align: left;">ID <span class="p">An item’s unique identifier. An ID is needed for certain types of menu items.</span></p><p class="s3" style="padding-top: 6pt;padding-left: 191pt;text-indent: -84pt;line-height: 107%;text-align: left;">ITEMS <span class="p">Used to list a series of choices for an </span>NCHOOSE <span class="p">item, and to list the ID’s of the editable items for an </span>EDITSTART <span class="p">item.</span></p><p class="s3" style="padding-top: 7pt;padding-left: 107pt;text-indent: 0pt;text-align: left;">SELECTEDFN <span class="p">The name of the function to be called if the item is chosen.</span></p><p style="text-indent: 0pt;text-align: left;"><br/></p><h2 style="padding-left: 35pt;text-indent: 0pt;text-align: left;"><a name="a95">Types of Free Menu Items                                                                               </a></h2><p style="padding-top: 9pt;padding-left: 107pt;text-indent: 0pt;text-align: left;">Each type of menu item is described in the following list, including an example description list for each one.</p><p style="text-indent: 0pt;text-align: left;"><br/></p><p class="s3" style="padding-left: 107pt;text-indent: 0pt;text-align: left;">MOMENTARY <span class="p">This is the familiar sort of menu item. When it is selected, the</span></p><p style="padding-left: 191pt;text-indent: 0pt;text-align: left;">function stored with it is called. A description for the function that creates and format s the menu looks like this:</p><p class="s3" style="padding-top: 6pt;padding-left: 191pt;text-indent: 0pt;line-height: 11pt;text-align: left;">(TYPE MOMENTARY</p><p class="s3" style="padding-left: 215pt;text-indent: 0pt;line-height: 10pt;text-align: left;">LABEL Blink-N-Ring</p><p class="s3" style="padding-left: 215pt;text-indent: 0pt;line-height: 88%;text-align: left;">MESSAGE &quot;Blinks the screen and rings bells&quot; SELECTEDFN RINGBELLS)</p><p class="s3" style="padding-top: 6pt;padding-left: 191pt;text-indent: -84pt;line-height: 106%;text-align: left;">TOGGLE <span class="p">This menu item has two states, </span>T <span class="p">and </span>NIL<span class="p">. The default state is </span>NIL<span class="p">, but choosing the item toggles its state. The following is an example description list, without code for the </span>SELECTEDFN <span class="p">function, for this type of item:</span></p><p class="s3" style="padding-top: 6pt;padding-left: 191pt;text-indent: 0pt;line-height: 11pt;text-align: left;">(TYPE TOGGLE</p><p class="s3" style="padding-left: 215pt;text-indent: 0pt;line-height: 88%;text-align: left;">LABEL DwimDisable SELECTEDFN ChangeDwimState)</p><ol id="l20"><li><p class="s6" style="padding-top: 3pt;padding-left: 473pt;text-indent: -473pt;text-align: right;">FREE MENUS</p><p style="padding-left: 35pt;text-indent: 0pt;line-height: 1pt;text-align: left;"><span><img width="665" height="1" alt="image" src="Image_140.png"/></span></p><p style="text-indent: 0pt;text-align: left;"><br/></p><p class="s3" style="padding-left: 190pt;text-indent: -84pt;line-height: 107%;text-align: left;">3STATE <span class="p">This type of menu item has three states, </span>NEUTRAL <span class="p">, </span>T<span class="p">, and </span>NIL. NEUTRAL <span class="p">is the default state. </span>T <span class="p">is shown by highlighting the item, and </span>NIL <span class="p">is shown with diagonal lines. The following is an example</span></p><p style="padding-left: 191pt;text-indent: 0pt;line-height: 107%;text-align: left;">description list, without code for the <span class="s3">SELECTEDFN </span>function, for this type of item:</p><p class="s3" style="padding-top: 6pt;padding-left: 190pt;text-indent: 0pt;line-height: 11pt;text-align: left;">(TYPE 3STATE</p><p class="s3" style="padding-left: 214pt;text-indent: 0pt;line-height: 88%;text-align: left;">LABEL CorrectProgramAllOrNoSpelling SELECTEDFN ToggleSpellingCorrection)</p><p class="s3" style="padding-top: 6pt;padding-left: 191pt;text-indent: -84pt;line-height: 107%;text-align: left;">TITLE <span class="p">This menu item appears on the menu as dummy text. It does nothing when chosen. An example of its description:</span></p><p class="s3" style="padding-top: 6pt;padding-left: 190pt;text-indent: 0pt;text-align: left;">(TYPE TITLE LABEL &quot;Choices:&quot;)</p><p class="s3" style="padding-top: 7pt;padding-left: 191pt;text-indent: -84pt;line-height: 107%;text-align: left;">NWAY <span class="p">A group of items, nnly one of which can be chosen at a time. The items in the </span>NWAY <span class="p">group should all have an ID field, and the ID’s</span></p><p style="padding-left: 190pt;text-indent: 0pt;text-align: left;">should be the same. For example, to set up a menu that would allow the user to choose between Helvetica, Gacha, Modern, and Classic font s, the descriptions might look like this (once again, without the code for the <span class="s3">SELECTEDFN</span>):</p><p class="s3" style="padding-top: 7pt;padding-left: 190pt;text-indent: 0pt;line-height: 11pt;text-align: left;">(TYPE NWAY ID FONTCHOICE</p><p class="s3" style="padding-left: 214pt;text-indent: 0pt;line-height: 88%;text-align: left;">LABEL Helvetica SELECTEDFN ChangeFont)</p><p class="s3" style="padding-left: 190pt;text-indent: 0pt;line-height: 10pt;text-align: left;">(TYPE NWAY ID FONTCHOICE</p><p class="s3" style="padding-left: 214pt;text-indent: 0pt;line-height: 10pt;text-align: left;">LABEL Gacha</p><p class="s3" style="padding-left: 190pt;text-indent: 24pt;line-height: 88%;text-align: left;">SELECTEDFN ChangeFont) (TYPE NWAY ID FONTCHOICE)</p><p class="s3" style="padding-left: 214pt;text-indent: 0pt;line-height: 88%;text-align: left;">LABEL Modern SELECTEDFN ChangeFont)</p><p class="s3" style="padding-left: 190pt;text-indent: 0pt;line-height: 10pt;text-align: left;">(TYPE NWAY ID FONTCHOICE</p><p class="s3" style="padding-left: 214pt;text-indent: 0pt;line-height: 88%;text-align: left;">LABEL Classic SELECTEDFN Changefont)</p><p style="text-indent: 0pt;text-align: left;"><br/></p><p class="s3" style="padding-left: 191pt;text-indent: -84pt;line-height: 107%;text-align: justify;">NCHOOSE <span class="p">This type of menu item is like </span>NWAY <span class="p">except that the choices are given to the user in a submenu. The list to specify an </span>NCHOOSE <span class="p">menu item that is analogous to the </span>NWAY <span class="p">item above might look like this:</span></p><p class="s3" style="padding-top: 7pt;padding-left: 190pt;text-indent: 0pt;line-height: 11pt;text-align: left;">(TYPE NCHOOSE</p><p class="s3" style="padding-left: 214pt;text-indent: 0pt;line-height: 10pt;text-align: left;">LABEL FontChoices</p><p class="s3" style="padding-left: 214pt;text-indent: 0pt;line-height: 88%;text-align: left;">ITEMS Helvetica Gacha Modern Classic) SELECTDFN Changefont)</p><p class="s3" style="padding-top: 6pt;padding-left: 190pt;text-indent: -84pt;line-height: 107%;text-align: left;">EDITSTART <span class="p">When this type of menu itein is chosen, it activates another type of item, an </span>EDIT <span class="p">item. The </span>EDIT <span class="p">item or items associated with an </span>EDITSTART <span class="p">item have their lD’s listed on the </span>EDITSTART <span class="p">’s </span>ITEMS <span class="p">property. An example description list is:</span></p><p class="s3" style="padding-top: 6pt;padding-left: 190pt;text-indent: 0pt;text-align: left;">(TYPE EDITSTART LABEL &quot;Function to add?&quot; ITEMS (Fn))</p><p class="s3" style="padding-top: 7pt;padding-left: 106pt;text-indent: 0pt;text-align: left;">EDIT <span class="p">This type of menu item can actually be edited by you. It is often</span></p><p style="padding-left: 190pt;text-indent: 0pt;line-height: 106%;text-align: left;">associated with an <span class="s3">EDITSTART </span>item (see above), but the caret that prompts for input will also appear if the item itself is chosen. An <span class="s3">EDIT </span>item follows the same editing conventions as editing in</p><p style="padding-left: 191pt;text-indent: 0pt;text-align: left;">Executive Window:</p><p class="s10" style="padding-top: 7pt;padding-left: 191pt;text-indent: 0pt;text-align: left;">Add characters <span class="p">by typing them at the caret.</span></p><p class="s10" style="padding-top: 7pt;padding-left: 190pt;text-indent: 0pt;text-align: left;">Move the caret <span class="p">by pointing the mouse at the new position, and clicking the left button.</span></p><p style="text-indent: 0pt;text-align: left;"><br/></p><p class="s10" style="padding-top: 4pt;padding-left: 191pt;text-indent: 0pt;text-align: left;">Delete characters <span class="p">from the caret to the mouse by pressing the right button of the mouse. Delete a character behind the caret by pressing the backspace key.</span></p><p class="s10" style="padding-top: 7pt;padding-left: 191pt;text-indent: 0pt;text-align: left;">Stop editing <span class="p">by typing a carriage return, a Control-X, or by choosing another item from the menu.</span></p><p style="padding-top: 7pt;padding-left: 191pt;text-indent: 0pt;text-align: left;">An example description list for this type of item is:</p><p class="s3" style="padding-top: 7pt;padding-left: 191pt;text-indent: 0pt;text-align: left;">(TYPE EDIT ID Fn LABEL **)</p></li><li><h1 style="padding-top: 3pt;padding-left: 70pt;text-indent: -35pt;text-align: left;"><a name="bookmark23">THE GRAPHER</a></h1><p style="padding-left: 35pt;text-indent: 0pt;line-height: 6pt;text-align: left;"><span><img width="640" height="8" alt="image" src="Image_141.png"/></span></p><p style="text-indent: 0pt;text-align: left;"><br/></p><h2 style="padding-top: 14pt;padding-left: 35pt;text-indent: 0pt;text-align: left;"><a name="a96">Say it with Graphs                                                                                            </a></h2><p style="text-indent: 0pt;text-align: left;"><br/></p><p style="padding-top: 4pt;padding-left: 107pt;text-indent: 0pt;text-align: justify;">Grapher is a collection of functions for creating and displaying graphs, networks of nodes and links. Grapher also allows you to associate program behavior with mouse selection of graph nodes. To load this package, type</p><p class="s3" style="padding-top: 6pt;padding-left: 143pt;text-indent: 0pt;text-align: left;">(FILESLOAD GRAPHER)</p><p style="padding-top: 7pt;padding-bottom: 3pt;padding-left: 107pt;text-indent: 0pt;text-align: left;">Figure 21-1 shows a simple graph.</p><p style="padding-left: 178pt;text-indent: 0pt;text-align: left;"><span><img width="355" height="217" alt="image" src="Image_142.gif"/></span></p><p style="text-indent: 0pt;text-align: left;"><br/></p><p style="padding-left: 249pt;text-indent: 0pt;text-align: left;">Figure 21-1. Simple Graph</p><p style="text-indent: 0pt;text-align: left;"><br/></p><p style="padding-left: 107pt;text-indent: 0pt;text-align: left;">In Figure 21-1 there are six nodes (<span class="s3">ANIMAL </span>, <span class="s3">MAMMAL</span>, <span class="s3">DOG</span>, <span class="s3">CAT</span>, <span class="s3">FISH</span>, and <span class="s3">BIRD</span>)</p><p style="padding-left: 107pt;text-indent: 0pt;text-align: left;">connected by five links. A <span class="s3">GRAPH </span>is a record containing several fields. Perhaps the most</p><p style="padding-left: 107pt;text-indent: 0pt;line-height: 107%;text-align: left;">important field is <span class="s3">GRAPHNODES </span>—which is itself a list of <span class="s3">GRAPHNODE </span>records. Figure 21-2 illustrates these data structures. The window on top contains the fields from the simple</p><p style="padding-left: 107pt;text-indent: 0pt;line-height: 12pt;text-align: left;">graph. The window on the bottoms an inspection of the node, <span class="s3">DOG</span>.</p><p style="text-indent: 0pt;text-align: left;"><br/></p><p style="padding-left: 147pt;text-indent: 0pt;text-align: left;"><span><img width="430" height="381" alt="image" src="Image_143.gif"/></span></p><p style="padding-top: 2pt;padding-left: 209pt;text-indent: 0pt;text-align: left;">Figure 21-2. Inspecting a Graph and a Node</p><p style="text-indent: 0pt;text-align: left;"><br/></p><p style="padding-left: 107pt;text-indent: 0pt;line-height: 107%;text-align: left;">The <span class="s3">GRAPHNODE </span>data structure is described by its text (<span class="s3">NODEID </span>), what goes into it (<span class="s3">FROMNODES</span>), what leaves it (<span class="s3">TONODES </span>), and other fields that specify its looks. The basic model of graph building is to create a bunch of nodes, then layout the nodes into a</p><p style="padding-left: 107pt;text-indent: 0pt;line-height: 11pt;text-align: left;">graph, and finally display the resultant graph. This can be done in a number of ways.</p><p style="padding-left: 107pt;text-indent: 0pt;line-height: 107%;text-align: left;">One is to use the function <span class="s3">NODECREATE </span>to create the nodes, <span class="s3">LAYOUTGRAPH </span>to lay out the nodes, and <span class="s3">SHOWGRAPH </span>to display the graph. The primer shows you two simpler ways,</p><p style="padding-left: 107pt;text-indent: 0pt;line-height: 106%;text-align: left;">but please see the <i>Library Packages Manual </i>for more information about these other functions. The primer’s first method is to use <span class="s3">SHOWGRAPH </span>to display a graph with no nodes or links, then interactively add them. The second is to use the function</p><p class="s3" style="padding-left: 107pt;text-indent: 0pt;line-height: 107%;text-align: left;">LAYOUTSEXPR<span class="p">, which does the appropriate </span>NODECREATES <span class="p">and a </span>LAYOUTGRAPH<span class="p">, with a list.</span></p><p style="padding-top: 6pt;padding-left: 110pt;text-indent: 0pt;text-align: left;">The function <span class="s3">SHOWGRAPH </span>displays graphs and allows you to edit them. The syntax of</p><p class="s3" style="padding-left: 107pt;text-indent: 0pt;text-align: left;">SHOWGRAPH <span class="p">is</span></p><p class="s3" style="padding-top: 7pt;padding-left: 166pt;text-indent: -23pt;line-height: 107%;text-align: left;">(SHOWGRAPH <span class="s4">graph window lefibuttonfn middlebuttonfn topjustifyflg alloweditflg copybuttoneventfn</span>)</p><p style="padding-top: 7pt;padding-left: 107pt;text-indent: 0pt;text-align: left;">Obviously the graph structure is very complex. Here’s the easiest way to create a graph.</p><p class="s3" style="padding-top: 7pt;padding-left: 143pt;text-indent: 0pt;line-height: 11pt;text-align: left;">(SETQ MY.GRAPH NIL)</p><p class="s3" style="padding-left: 143pt;text-indent: 0pt;line-height: 11pt;text-align: left;">(SHOWGRAPH MY.GRAPH &quot;My Graph&quot; NIL NIL NIL T)</p><p style="text-indent: 0pt;text-align: left;"><br/></p><p style="padding-left: 179pt;text-indent: 0pt;text-align: left;"><span><img width="350" height="195" alt="image" src="Image_144.gif"/></span></p><p style="text-indent: 0pt;text-align: left;"><br/></p><p style="padding-top: 4pt;padding-left: 111pt;text-indent: 0pt;text-align: center;">Figure 21-3. My Graph</p><p style="text-indent: 0pt;text-align: left;"><br/></p><p style="padding-left: 107pt;text-indent: 0pt;text-align: left;">You will be prompted to create a small window as in Figure 21-3. This graph has the title My Graph. Hold down the right mouse button in the window. A menu of graph</p><p style="padding-bottom: 2pt;padding-left: 107pt;text-indent: 0pt;text-align: left;">editing operations will appear as in Figure 21-4.</p><p style="padding-left: 248pt;text-indent: 0pt;text-align: left;"><span><img width="168" height="158" alt="image" src="Image_145.gif"/></span></p><p style="text-indent: 0pt;text-align: left;"><br/></p><p style="padding-left: 205pt;text-indent: 0pt;text-align: left;">Figure 21-4. Menu of Graph Editing Operations</p><p style="padding-top: 7pt;padding-left: 107pt;text-indent: 0pt;text-align: left;">Here’s how to use this menu. The commands in this menu are easy to learn. Experiment with them!</p><p style="text-indent: 0pt;text-align: left;"><br/></p><h3 style="padding-left: 71pt;text-indent: 0pt;text-align: left;"><a name="a97">Add a Node</a></h3><p style="padding-top: 5pt;padding-bottom: 1pt;padding-left: 107pt;text-indent: 0pt;line-height: 107%;text-align: left;">Start by selecting <span class="s3">Add Node </span>. Grapher will prompt you for the name of the node (see Figure 21-5.) and then its position.</p><p style="padding-left: 228pt;text-indent: 0pt;text-align: left;"><span><img width="220" height="102" alt="image" src="Image_146.gif"/></span></p><p style="text-indent: 0pt;text-align: left;"><br/></p><p style="padding-left: 111pt;text-indent: 0pt;text-align: center;">Figure 21-5. Grapher Prompts for  Name of Node  to add after Add  Node is Chosen from Graph Editing  Menu.</p><p style="text-indent: 0pt;text-align: left;"><br/></p><p style="padding-left: 107pt;text-indent: 0pt;text-align: left;">Position the node by moving the mouse cursor to the desired location and clicking a mouse button. Figure 21-6 shows the graph with two nodes added using this menu.</p><p style="text-indent: 0pt;text-align: left;"><br/></p><p style="padding-left: 270pt;text-indent: 0pt;text-align: left;"><span><img width="108" height="80" alt="image" src="Image_147.gif"/></span></p><p style="text-indent: 0pt;text-align: left;"><br/></p><p style="padding-top: 4pt;padding-left: 111pt;text-indent: 0pt;text-align: center;">Figure 21-6. Two Nodes Added  to <span class="s3">MY GRAPH </span>Using GraphEditing Menu</p><p style="text-indent: 0pt;text-align: left;"><br/></p><h3 style="padding-left: 71pt;text-indent: 0pt;text-align: left;"><a name="a98">Add a Link</a></h3><p style="padding-top: 5pt;padding-left: 107pt;text-indent: 0pt;line-height: 107%;text-align: left;">Select <span class="s3">Add Link </span>from the graph editing menu. The Prompt window will prompt you to select the two nodes to be linked. (See Figure 21-7.) Do this, and the link will be added.</p><p style="text-indent: 0pt;text-align: left;"><br/></p><p style="padding-left: 157pt;text-indent: 0pt;text-align: left;"><span><img width="408" height="66" alt="image" src="Image_148.gif"/></span></p><p style="text-indent: 0pt;text-align: left;"><br/></p><p style="padding-left: 269pt;text-indent: 0pt;text-align: left;"><span><img width="108" height="80" alt="image" src="Image_149.gif"/></span></p><p style="text-indent: 0pt;text-align: left;"><br/></p><p style="padding-left: 111pt;text-indent: 0pt;text-align: center;">Figure 21-7. Prompt Window Requesting Selection of   Two Nodes  to Link, and Result</p><p style="text-indent: 0pt;text-align: left;"><br/></p><h3 style="padding-left: 71pt;text-indent: 0pt;text-align: left;"><a name="a99">Delete a Link</a></h3><p style="padding-top: 5pt;padding-left: 107pt;text-indent: 0pt;line-height: 107%;text-align: left;">Select <span class="s3">Delete Link </span>from the graph editing menu. ThePrompt window will prompt you to select the two nodes that should no longer be linked. (See Figure 21-8.) Do this, and</p><p style="padding-left: 107pt;text-indent: 0pt;line-height: 11pt;text-align: left;">the link will be deleted.</p><p style="text-indent: 0pt;text-align: left;"><br/></p><p style="padding-left: 159pt;text-indent: 0pt;text-align: left;"><span><img width="405" height="58" alt="image" src="Image_150.gif"/></span></p><p style="text-indent: 0pt;text-align: left;"><br/></p><p style="padding-left: 270pt;text-indent: 0pt;text-align: left;"><span><img width="108" height="79" alt="image" src="Image_151.gif"/></span></p><p style="text-indent: 0pt;text-align: left;"><br/></p><p style="padding-left: 111pt;text-indent: 0pt;text-align: center;">Figure 21-8.  Prompt Window Requesting Selection of Link  to Delete, and Result</p><p style="text-indent: 0pt;text-align: left;"><br/></p><h3 style="padding-left: 71pt;text-indent: 0pt;text-align: left;"><a name="a100">Delete a Node</a></h3><p style="padding-top: 5pt;padding-left: 107pt;text-indent: 0pt;line-height: 107%;text-align: left;">Select <span class="s3">Delete Node </span>from the graph editing menu. The Prompt window will prompt you to select the node to be aeleted. (See Figure 21-9.) Do this, and the node will be deletea.</p><p style="text-indent: 0pt;text-align: left;"><br/></p><p style="padding-left: 174pt;text-indent: 0pt;text-align: left;"><span><img width="372" height="38" alt="image" src="Image_152.gif"/></span></p><p style="padding-left: 111pt;text-indent: 0pt;text-align: center;">Figure 21.-9. Prompt to Delete a   Node</p><p style="text-indent: 0pt;text-align: left;"><br/></p><h3 style="padding-top: 4pt;padding-left: 71pt;text-indent: 0pt;text-align: left;"><a name="a101">Move a Node</a></h3><p style="padding-top: 5pt;padding-left: 107pt;text-indent: 0pt;line-height: 106%;text-align: left;">Select <span class="s3">Delete Node </span>from the graph editng menu. Choose a node pointing to the it with the mouse cursor, and pressing and holding the leff mouse button. When you move the mouse cursor, the node will be dragged along. When the node is at the new position,</p><p style="padding-left: 107pt;text-indent: 0pt;line-height: 11pt;text-align: left;">release the mouse button to deposit the node.</p><p style="text-indent: 0pt;text-align: left;"><br/></p><h2 style="padding-left: 35pt;text-indent: 0pt;text-align: left;"><a name="a102">Making a Graph from a List                                                                             </a></h2><p style="text-indent: 0pt;text-align: left;"><br/></p><p style="padding-top: 4pt;padding-left: 107pt;text-indent: 0pt;text-align: left;">Typically, a graph is used to display one of your program’s data structures. Here is how that is done.</p><p style="text-indent: 0pt;text-align: left;"><br/></p><p class="s3" style="padding-left: 93pt;text-indent: 0pt;text-align: center;">LAYOUTSEXPR <span class="p">takes a  list and returns a </span>GRAPH <span class="p">record. The syntax of the function is</span></p><p style="padding-top: 7pt;padding-left: 91pt;text-indent: 0pt;text-align: center;">(<span class="s3">LAYOUTSEXPR </span><i>sexpr format boxing font  motherd personald famlyd</i>)</p><p style="padding-top: 8pt;padding-left: 107pt;text-indent: 0pt;text-align: left;">For example:</p><p class="s3" style="padding-top: 8pt;padding-left: 143pt;text-indent: 0pt;line-height: 88%;text-align: left;">(SETQ ANIMAL.TREE ’(ANIMAL (MAMMAL DOG CAT) BIRD FISH)) (SETQ ANIMAL.GRAPH</p><p class="s3" style="padding-left: 143pt;text-indent: 30pt;line-height: 88%;text-align: left;">(LAYOUTSEXPR ANIMAL.TREE ’HORIZONTAL)) (SHOWGRAPH ANIMAL.GRAPH &quot;My Graph&quot; NIL NIL NIL T)</p><p style="padding-top: 6pt;padding-left: 107pt;text-indent: 0pt;text-align: left;">This is how Figure 21.1 was produced.</p><p style="text-indent: 0pt;text-align: left;"><br/></p><h2 style="padding-left: 35pt;text-indent: 0pt;text-align: left;"><a name="a103">Incorporating Grapher into Your Program                                                     </a></h2><p style="padding-top: 9pt;padding-left: 107pt;text-indent: 0pt;text-align: left;">The Grapher is designed to be built into other programs. It can call functions when, for example, a mouse button is clicked on a node. The function <span class="s3">SHOWGRAPH </span>does this:</p><p class="s3" style="padding-top: 7pt;padding-left: 166pt;text-indent: -23pt;line-height: 107%;text-align: left;">(SHOWGRAPH <span class="s4">graph window lefibuttonfn middlebuttonfn topjustifyflg alloweditflg copybuttoneventfn</span>)</p><p style="padding-top: 7pt;padding-left: 107pt;text-indent: 0pt;line-height: 107%;text-align: left;">For example, the third argument to <span class="s3">SHOWGRAPH </span>, <i>leftbuttonfn</i>, is a function that is called when the left mouse button is pressed in the graph window. Try this:</p><p class="s3" style="padding-top: 7pt;padding-left: 173pt;text-indent: -30pt;line-height: 88%;text-align: left;">(DEFINEQ (My.LEFT.BUTT0N.FUNCTION (THE.GRAPHNODE THE.GRAPH.WINDOW)</p><p class="s3" style="padding-left: 203pt;text-indent: 0pt;line-height: 10pt;text-align: left;">(INSPECT THE.GRAPHNODE)))</p><p style="text-indent: 0pt;text-align: left;"><br/></p><p class="s3" style="padding-left: 173pt;text-indent: -30pt;line-height: 88%;text-align: left;">(SHOWGRAPH FAMILY.GRAPH &quot;Inspectable family&quot; (FUNCTION MY.LEFT.BUTTON.FUNCTION)</p><p class="s3" style="padding-left: 203pt;text-indent: 0pt;line-height: 10pt;text-align: left;">NIL NIL T)</p><p style="text-indent: 0pt;text-align: left;"><br/></p><p style="padding-left: 95pt;text-indent: 0pt;text-align: center;">In  the example above, <span class="s3">MY.LEFT.BUTTON.FUNCTION </span>simply calls the inspector. The</p><p style="padding-left: 107pt;text-indent: 0pt;text-align: left;">function should be written assuming it will be passed a graphnode and the window that holds the graph. Try adding a function of your own.</p><p style="text-indent: 0pt;text-align: left;"><br/></p><h2 style="padding-left: 35pt;text-indent: 0pt;text-align: left;"><a name="a104">More of Grapher                                                                                               </a></h2><p style="padding-top: 9pt;padding-left: 107pt;text-indent: 0pt;text-align: left;">Some other Library packages make use of the Grapher. (Grapher needs to be loaded with the packages to use these functions.)</p><p style="text-indent: 0pt;text-align: left;"><br/></p><ul id="l21"><li><p class="s3" style="padding-top: 4pt;padding-left: 119pt;text-indent: -12pt;line-height: 107%;text-align: left;">MASTERSCOPE<span class="p">: The Browser package modifies the Masterscope command, </span>. SHOW PATHS<span class="p">, so that its output is displayed as a graph (using Grapher) instead of simply printed.</span></p></li><li><p class="s3" style="padding-top: 7pt;padding-left: 119pt;text-indent: -12pt;text-align: left;">GRAPHZOOM<span class="p">: allows a graph to be redisplayed larger or smaller automatically.</span></p></li></ul></li><li><h1 style="padding-top: 3pt;padding-left: 70pt;text-indent: -35pt;text-align: left;"><a name="bookmark24">RESOURCE MANAGEMENT</a></h1><p style="padding-left: 35pt;text-indent: 0pt;line-height: 6pt;text-align: left;"><span><img width="640" height="8" alt="image" src="Image_153.png"/></span></p><p style="text-indent: 0pt;text-align: left;"><br/></p><h2 style="padding-left: 35pt;text-indent: 0pt;text-align: left;"><a name="a105">Naming Variables and Records                                                                      </a></h2><p style="padding-top: 9pt;padding-left: 107pt;text-indent: 0pt;text-align: left;">You will find times when one environment simultaneously hosts a number of different programs. Running a demo of several programs, or reloading the entire Medley</p><p style="padding-left: 107pt;text-indent: 0pt;text-align: left;">environment from floppies when it contains several different programs, are two</p><p style="padding-left: 107pt;text-indent: 0pt;text-align: left;">examples that could, if you aren’t careful, provide a few problems. Here are a few tips on how to prevent problems:</p><p style="text-indent: 0pt;text-align: left;"><br/></p><ul id="l22"><li><p style="padding-left: 119pt;text-indent: -10pt;line-height: 107%;text-align: justify;">If you change the value of a system variable, <span class="s3">MENUHELDWAIT </span>for example, or connect to a directory other than <span class="s3">{DSK}&lt;LISPFILES&gt; </span>, write a function to reset the variable or directory to its original value. Run this function when you are finished working.</p><p style="padding-left: 119pt;text-indent: 0pt;line-height: 11pt;text-align: justify;">This is especially important if you change any of the system menus.</p><p style="text-indent: 0pt;text-align: left;"><br/></p></li><li><p style="padding-left: 119pt;text-indent: -10pt;text-align: left;">Do not redefine Medley functions or CLISP words. Remember, if you reset an atom’s value or function definition at the top level (in the Executive Window), the message (<i>Some.Crucial.Function.Or.Variable </i><span class="s3">redefined) </span>, appears. If this is not what you wanted, type <span class="s9">UNDO </span>immediately!</p><p style="padding-top: 10pt;padding-left: 119pt;text-indent: 0pt;text-align: left;">If, however, you reset the value or function definition of an atom inside your program, a warning message will not be printed.</p><p style="text-indent: 0pt;text-align: left;"><br/></p></li><li><p style="padding-left: 119pt;text-indent: -10pt;text-align: left;">Make the atom names in your programs as unique as possible. To do this without filling your program with unreadable names that noone, including you, can</p><p style="padding-left: 119pt;text-indent: 0pt;text-align: left;">remember, prefix your variable names with the initials of your program. Even then, check to see that they are not already being used with the function <span class="s3">BOUNDP </span>. For</p><p style="padding-left: 119pt;text-indent: 0pt;text-align: left;">example, type:</p><p class="s3" style="padding-top: 7pt;padding-left: 179pt;text-indent: 0pt;text-align: left;">(BOUNDP ’BackgroundMenu)</p><p style="text-indent: 0pt;text-align: left;"><br/></p><p style="padding-left: 119pt;text-indent: 0pt;text-align: left;">This atom is bound to the menu that appears when you press the leff mouse button</p><p style="padding-left: 119pt;text-indent: 0pt;text-align: left;">when the mouse cursor is not in any window. <span class="s3">BOUND</span>P returns <span class="s3">T</span>. <span class="s3">BOUNDP </span>returns <span class="s3">NIL</span></p><p style="padding-left: 119pt;text-indent: 0pt;text-align: left;">if its argument does not currently have a value.</p><p style="text-indent: 0pt;text-align: left;"><br/></p></li><li><p style="padding-left: 117pt;text-indent: -9pt;text-align: left;">Make your function names as unique as possible. Once again, prefixing function</p><p style="padding-left: 119pt;text-indent: 0pt;text-align: left;">names with the initials of your program can be helpful in making them unique, but even so, check to see that they are not already being used. <span class="s3">GETD </span>is the Interlisp-D function that returns the function definition of an atom, if it has one. If an atom has no function definition, <span class="s3">GETD </span>returns <span class="s3">NIL</span>. For example, type:</p><p class="s3" style="padding-top: 7pt;padding-left: 143pt;text-indent: 0pt;text-align: left;">(GETD ’CAR)</p><p style="padding-top: 7pt;padding-left: 119pt;text-indent: 0pt;text-align: left;">A non-<span class="s3">NIL </span>value is returned. The atom <span class="s3">CAR </span>already has a function definition.</p><p style="text-indent: 0pt;text-align: left;"><br/></p></li><li><p style="padding-left: 119pt;text-indent: -11pt;line-height: 107%;text-align: left;">Use complete record field names in record <span class="s3">FETCH</span>es and <span class="s3">REPLACE </span>s when your code is not compiled. A complete record field name is a list consisting of the record</p><p style="padding-left: 119pt;text-indent: 0pt;line-height: 11pt;text-align: justify;">declaration name and the field name. Consider the following example:</p><p class="s3" style="padding-top: 7pt;padding-left: 143pt;text-indent: 0pt;line-height: 10pt;text-align: left;">(REC0RD NAME (FIRST LAST))</p><p class="s3" style="padding-left: 143pt;text-indent: 0pt;line-height: 88%;text-align: left;">(SETQ MyName (create Name FIRST <span class="s2"></span>’John LAST <span class="s2"></span>’Smith)) (FETCH (NAME FIRST) OF MyName)</p></li><li><p style="padding-top: 9pt;padding-left: 119pt;text-indent: -11pt;text-align: left;">Avoid reusing names that are field names of Lisp system records. A few examples of system records follow. Do not reuse these names.</p><p class="s3" style="padding-top: 7pt;padding-left: 143pt;text-indent: 0pt;line-height: 88%;text-align: left;">(RECORD REGION (LEFT BOTTOM WIDTH HEIGHT)) (RECORD POSITION (XCOORD YCOORD))</p><p style="text-indent: 0pt;text-align: left;"><br/></p><p class="s3" style="padding-top: 4pt;padding-left: 143pt;text-indent: 0pt;text-align: left;">(RECORD IMAGEOBJ (- BITMAP -<span class="p">)))</span></p><p style="text-indent: 0pt;text-align: left;"><br/></p></li><li><p style="padding-left: 119pt;text-indent: -11pt;text-align: left;">When you select a record name and field names for a new record, check to see whether those names have already been used.</p><p style="text-indent: 0pt;text-align: left;"><br/></p><p style="padding-left: 119pt;text-indent: 0pt;line-height: 107%;text-align: left;">Call the function <span class="s3">RECLOOK</span>, with your record name as an argument, in the Executive Window (see Figure 22-1). If your record name is already a record, the record</p><p style="padding-left: 119pt;text-indent: 0pt;line-height: 12pt;text-align: left;">definition will be returned; otherwise the function will return <span class="s3">NIL</span>.</p><p style="text-indent: 0pt;text-align: left;"><br/></p><p style="padding-left: 191pt;text-indent: 0pt;text-align: left;"><span><img width="329" height="142" alt="image" src="Image_154.gif"/></span></p><p style="text-indent: 0pt;text-align: left;"><br/></p><p style="padding-left: 230pt;text-indent: 0pt;text-align: left;">Figure 22-1. Response to <span class="s3">RECLOCK</span></p><p style="text-indent: 0pt;text-align: left;"><br/></p><p style="padding-top: 7pt;padding-left: 119pt;text-indent: 0pt;line-height: 106%;text-align: left;">Call the function <span class="s3">FIELDLOOK </span>with your new field name in the Executive Window (see Figure 22-2). If your field name is already a field name in another record, the record definition will be returned; otherwise the function will return <span class="s3">NIL</span>.</p><p style="text-indent: 0pt;text-align: left;"><br/></p><p style="padding-left: 188pt;text-indent: 0pt;text-align: left;"><span><img width="329" height="142" alt="image" src="Image_155.gif"/></span></p><p style="padding-top: 9pt;padding-left: 226pt;text-indent: 0pt;text-align: left;">Figure 22-2. Response to <span class="s3">FIELDLOOK</span></p><p style="text-indent: 0pt;text-align: left;"><br/></p><h2 style="padding-left: 35pt;text-indent: 0pt;text-align: left;"><a name="a106">Some Space and Time Considerations                                                          </a></h2><p style="padding-top: 9pt;padding-left: 107pt;text-indent: 0pt;text-align: justify;">In order for your program to run at maximum speed, you must efficiently use the space available on the system. The following section points out areas that you may not know are wasting valuable space, and tips on how to prevent this waste.</p><p style="padding-top: 7pt;padding-left: 107pt;text-indent: 0pt;text-align: left;">Often programs are written so that new data structures are created each time the</p><p style="padding-left: 107pt;text-indent: 0pt;text-align: left;">program is run. This is wasteful. Write your programs so that they only create new variables and other data structures conditionally. If a structure has already been</p><p style="padding-left: 107pt;text-indent: 0pt;text-align: left;">created, use it instead of creating a new one.</p><p style="padding-top: 7pt;padding-left: 107pt;text-indent: 0pt;text-align: left;">Some time and space can be saved by changing your <span class="s3">RECORD </span>and <span class="s3">TYPERECORD</span></p><p style="padding-left: 107pt;text-indent: 0pt;line-height: 107%;text-align: justify;">declarations to <span class="s3">DATATYPE </span>. <span class="s3">DATATYPE </span>is used the same way as the functions <span class="s3">RECORD </span>and <span class="s3">TYPERECORD</span>. In addition, the same <span class="s3">FETCH </span>and <span class="s3">REPLACE </span>commands can be used with the data structure <span class="s3">DATATYPE </span>creates. The difference is that the data structure</p><p class="s3" style="padding-left: 107pt;text-indent: 0pt;text-align: left;">DATATYPE <span class="p">creates cannot be treated as a list the way </span>RECORD <span class="p">s and </span>TYPERECORD<span class="p">s can.</span></p><ol id="l23"><li><p class="s6" style="padding-top: 3pt;padding-left: 407pt;text-indent: -407pt;text-align: right;">RESOURCE MANAGEMENT</p><p style="padding-left: 35pt;text-indent: 0pt;line-height: 1pt;text-align: left;"><span><img width="665" height="1" alt="image" src="Image_156.png"/></span></p><p style="text-indent: 0pt;text-align: left;"><br/></p><h3 style="padding-left: 71pt;text-indent: 0pt;text-align: left;"><a name="a107">Global Variables</a></h3><p style="padding-top: 8pt;padding-left: 107pt;text-indent: 0pt;text-align: left;">Once defined, global variables remain until Lisp is reloaded. Avoid using global</p><p style="padding-left: 107pt;text-indent: 0pt;text-align: left;">variables if at all possible! One specific problem arises when programs use the function</p><p class="s3" style="padding-left: 107pt;text-indent: 0pt;line-height: 107%;text-align: left;">GENSYM<span class="p">. In program development, many atoms are created that may no longer be useful. Hints:</span></p></li></ol></li><li><p style="padding-top: 6pt;padding-left: 119pt;text-indent: -11pt;text-align: left;">Use</p><p class="s3" style="padding-top: 7pt;padding-left: 143pt;text-indent: 0pt;text-align: left;">(DELDEF <span class="s4">atomname </span>’PROP)</p><p style="padding-top: 7pt;padding-left: 119pt;text-indent: 0pt;text-align: left;">to delete property lists, and</p><p class="s3" style="padding-top: 7pt;padding-left: 143pt;text-indent: 0pt;text-align: left;">(DELDEF <span class="s4">atomname </span>’VARS)</p><p style="padding-top: 7pt;padding-left: 119pt;text-indent: 0pt;text-align: left;">to have the atom act like it is not defined.</p><p style="padding-top: 7pt;padding-left: 119pt;text-indent: 0pt;text-align: left;">These not only remove the definition from memory, but also change the appropriate <span class="s3">fileCOMS </span>that the deleted object was associated with so that the file package will not attempt to save the object (function, variable, record definition, and so forth) the next time the file is made. J ust doing something like</p><p class="s3" style="padding-top: 7pt;padding-left: 143pt;text-indent: 0pt;text-align: left;">(SETQ (<span class="s4">arg atomname</span>) ’NOBIND)</p><p style="padding-top: 7pt;padding-left: 119pt;text-indent: 0pt;line-height: 107%;text-align: left;">looks like it will have the same effect as the second <span class="s3">DELDEF </span>above, but the <span class="s3">SETQ </span>does not update the file package.</p></li><li><p style="padding-top: 6pt;padding-left: 119pt;text-indent: -11pt;line-height: 107%;text-align: left;">If you are generating atom names with <span class="s3">GENSYM </span>, try to keep a list of the atom names that are no longer needed. Reuse these atom names, before generating new ones.</p><p style="padding-left: 119pt;text-indent: 0pt;text-align: left;">There is a (fairly large) maximum to the number of atoms you can have, but things slow down considerably when you create lots of atoms.</p></li><li><p style="padding-top: 6pt;padding-left: 119pt;text-indent: -11pt;text-align: left;">When possible, use a data structure such as a list or an array, instead of many</p><p style="padding-left: 119pt;text-indent: 0pt;text-align: left;">individual atoms. Such a structure has only one pointer to it. Once this pointer is</p><p style="padding-left: 119pt;text-indent: 0pt;text-align: left;">removed, the whole structure will be garbage-collected and space will be reclaimed.</p><p style="text-indent: 0pt;text-align: left;"><br/></p><h3 style="padding-left: 71pt;text-indent: 0pt;text-align: left;"><a name="a108">Circular Lists</a></h3><p style="padding-top: 8pt;padding-left: 107pt;text-indent: 0pt;text-align: justify;">If your program is creating circular lists, a lot of space may be wasted. (Many</p><p style="padding-left: 107pt;text-indent: 0pt;text-align: justify;">crosslinked data structures end up having circularities.) Hints when using circular lists:</p></li><li><p style="padding-top: 7pt;padding-left: 119pt;text-indent: -11pt;text-align: left;">Write a function to remove pointers that make lists circular when you are through with the circular list.</p></li><li><p style="padding-top: 7pt;padding-left: 119pt;text-indent: -10pt;text-align: left;">If you are working with circular lists of windows, bind your main window to a unique global variable. Write window creation conditionally so that if the binding of that</p><p style="padding-left: 119pt;text-indent: 0pt;text-align: left;">variable is already a window, use it, and only create a new window if that variable is unbound or <span class="s3">NIL</span>.</p><p style="padding-top: 7pt;padding-left: 107pt;text-indent: 0pt;text-align: justify;">Here is an example that illustrates the problem. When several auxilIary windows are built, pointers to these windows are usually kept on the main window’s property list.</p><p style="padding-left: 107pt;text-indent: 0pt;text-align: justify;">Each auxilIary window also typically keeps a pointer to the main window on its</p><p style="padding-left: 107pt;text-indent: 0pt;text-align: justify;">property list If the top level function creates windows rather than reusing existing ones, there will be many lists of useless windows cluttering the work space. Or, if such a main window is closed and will not be used again, you will have to break the links by deleting the relevant properties from both the main window and all of the auxiliary windows</p><p style="padding-left: 107pt;text-indent: 0pt;line-height: 107%;text-align: justify;">first. This is usually done by putting a special <span class="s3">CLOSEFN </span>on the main window and all of its auxiliary windows.</p><p style="text-indent: 0pt;text-align: left;"><br/></p><h3 style="padding-top: 4pt;padding-left: 71pt;text-indent: 0pt;text-align: left;"><a name="a109">When You Run Out of Space</a></h3><p style="padding-top: 8pt;padding-left: 107pt;text-indent: 0pt;text-align: justify;">Typically, if you generato a lot of structure! that won’t get garbage collected, you will eventually run out of space. The important part ii being aNe to track down those</p><p style="padding-left: 107pt;text-indent: 0pt;text-align: left;">structures and the code that generates them to become more space efficient.</p><p style="padding-top: 7pt;padding-left: 107pt;text-indent: 0pt;line-height: 107%;text-align: justify;">Use the Lisp Library Package <span class="s3">GCHAX.DCOM </span>to track down pointers to data structures. The basic idea is that <span class="s3">GCHAX </span>will return the number of references to a particular data structure.</p><p style="padding-top: 6pt;padding-left: 107pt;text-indent: 0pt;text-align: left;">A special function exists that allows you to get a little extra space so that you can try to save your work when you get toward the edge (usually noted by a message indicating</p><p style="padding-left: 107pt;text-indent: 0pt;text-align: left;">that you should save your work and load a new Medley environment). The <span class="s3">GAINSPACE</span></p><p style="padding-left: 107pt;text-indent: 0pt;text-align: left;">function allows you to delete non-essential data structures. To use it, type:</p><p class="s3" style="padding-top: 7pt;padding-left: 143pt;text-indent: 0pt;text-align: left;">(GAINSPACE)</p><p style="padding-top: 7pt;padding-left: 107pt;text-indent: 0pt;text-align: left;">into the Executive Window. Answer <span class="s3">N </span>to all questions except the followi ng.</p></li><li><p style="padding-top: 7pt;padding-left: 118pt;text-indent: -9pt;text-align: left;">Delete edit history</p></li><li><p style="padding-top: 7pt;padding-left: 119pt;text-indent: -11pt;text-align: left;">Delete history list.</p></li><li><p style="padding-top: 7pt;padding-left: 119pt;text-indent: -11pt;text-align: left;">Delete values of old variables.</p></li><li><p style="padding-top: 7pt;padding-left: 119pt;text-indent: -11pt;text-align: left;">Delete your <span class="s3">MASTERSCOPE </span>database</p></li><li><p style="padding-top: 7pt;padding-left: 119pt;text-indent: -11pt;text-align: left;">Delete information for undoing your greeting.</p><p style="padding-top: 7pt;padding-left: 107pt;text-indent: 0pt;text-align: left;">Save your work and reload Lisp as soon as possible.</p><ol id="l24"><li><h1 style="padding-top: 5pt;padding-left: 71pt;text-indent: -36pt;line-height: 87%;text-align: left;"><a name="bookmark25">SIMPLE INTERACTIONS WITH THE CURSOR, A BITMAP, AND A WINDOW</a></h1><p style="padding-left: 35pt;text-indent: 0pt;line-height: 6pt;text-align: left;"><span><img width="640" height="8" alt="image" src="Image_157.png"/></span></p><p style="text-indent: 0pt;text-align: left;"><br/></p><p style="padding-top: 15pt;padding-left: 107pt;text-indent: 0pt;text-align: left;">The purpose of this chapter is to show you how to build a moderately tricky interactive interface with the various Medley display facilities. In particular how to move a large</p><p style="padding-left: 107pt;text-indent: 0pt;line-height: 106%;text-align: left;">bitmap (larger than 16 x 16 pixels) around inside a window. To do this, you will change the <span class="s3">CURSORINFN </span>and <span class="s3">CURSOROUTFN </span>properties of the window. If you would also like to then set the bitmap in place in the window, you must reset the <span class="s3">BUTTONEVENTFN </span>. This chapter explains how to create the mobile bitmap.</p><p style="text-indent: 0pt;text-align: left;"><br/></p><h2 style="padding-left: 35pt;text-indent: 0pt;text-align: left;"><a name="a110">GETMOUSESTATE Example Function                                                           </a></h2><p style="padding-top: 9pt;padding-left: 107pt;text-indent: 0pt;line-height: 106%;text-align: left;">One function that you will use to &quot;trace the cursor&quot; (have a bitmap follow the cursor around in a window) is <span class="s3">GETMOUSESTATE</span>. This function finds the current state of the. mouse, and resets global system variables, such as <span class="s3">LASTMOUSEX </span>and <span class="s3">LASTMOUSEY</span>.</p><p style="padding-top: 7pt;padding-left: 107pt;text-indent: 0pt;text-align: left;">As an example of how this function works, create a window by typing</p><p class="s3" style="padding-top: 7pt;padding-left: 143pt;text-indent: 0pt;text-align: left;">(SETQ EXAMPLE.WINDOW (CREATEW))</p><p style="padding-top: 7pt;padding-left: 107pt;text-indent: 0pt;text-align: left;">into the Executive Window, and sweeping out a window. Now, type in the function</p><p class="s3" style="padding-top: 7pt;padding-left: 143pt;text-indent: 0pt;line-height: 11pt;text-align: left;">(DEFINEQ (PRINTCOORDS (W)</p><p class="s3" style="padding-left: 173pt;text-indent: 0pt;line-height: 88%;text-align: left;">(PROMPTPRINT &quot;(&quot; LASTMOUSEX &quot;, &quot;LASTMOUSEY &quot;)&quot;) (BLOCK)</p><p class="s3" style="padding-left: 173pt;text-indent: 0pt;line-height: 10pt;text-align: left;">(GETMOUSESTATE)))</p><p style="text-indent: 0pt;text-align: left;"><br/></p><p style="padding-left: 107pt;text-indent: 0pt;text-align: left;">This function calls <span class="s3">GETMOUSESTATE </span>and then prints the new values of <span class="s3">LASTMOUSEX </span>and</p><p class="s3" style="padding-left: 107pt;text-indent: 0pt;text-align: left;">LASTMOUSEY <span class="p">in the promptwindow. To use it, type</span></p><p class="s3" style="padding-top: 7pt;padding-left: 143pt;text-indent: 0pt;text-align: left;">(WINDOWPROP EXAMPLE.WINDOW ’CURSORMOVEDFN ’PRINTCOORDS)</p><p style="padding-top: 7pt;padding-left: 107pt;text-indent: 0pt;line-height: 107%;text-align: left;">The window property <span class="s3">CURSORMOVEDFN</span>, used in this example, will evaluate the function <span class="s3">PRINTCOORDS </span>each time the cursor is moved when it is inside the window. The position coordinates of the mouse cursor will appear in the prompt window. (See Figure 23.1.)</p><p style="text-indent: 0pt;text-align: left;"><br/></p><p style="padding-left: 128pt;text-indent: 0pt;text-align: left;">Figure 23.1. Current Position Coordinates of Mouse Cursor in Prompt Window</p><p style="text-indent: 0pt;text-align: left;"><br/></p><h2 style="padding-left: 35pt;text-indent: 0pt;text-align: left;"><a name="a111">Advising GETMOUSESTATE                                                                           </a></h2><p style="padding-top: 9pt;padding-left: 107pt;text-indent: 0pt;line-height: 107%;text-align: left;">For the bitmap to follow the moving mouse cursor, the function <span class="s3">GETMOUSESTATE </span>is advised. When you advise a function, you can add new commands to the function</p><p style="padding-left: 107pt;text-indent: 0pt;line-height: 11pt;text-align: left;">without knowing how it is actually implemented. The syntax for advise is</p><p class="s3" style="padding-top: 7pt;padding-left: 143pt;text-indent: 0pt;text-align: left;">(ADVISE <span class="s4">fn when where what</span>)</p><p class="s4" style="padding-top: 7pt;padding-left: 107pt;text-indent: 0pt;text-align: left;">fn <span class="p">is the name of the function to be augmented. </span>when <span class="p">and </span>where <span class="p">are optional</span></p><p style="padding-left: 107pt;text-indent: 0pt;text-align: left;">arguments. <i>when </i>specifies whether the change should be made before, after, or around the body of the function. The values expected are <span class="s3">BEFORE </span>, <span class="s3">AFTER</span>, or <span class="s3">AROUND</span>.</p><p class="s4" style="padding-top: 7pt;padding-left: 107pt;text-indent: 0pt;text-align: left;">what <span class="p">specifies the additional code.</span></p><p style="text-indent: 0pt;text-align: left;"><br/></p><p style="padding-top: 4pt;padding-left: 107pt;text-indent: 0pt;text-align: left;">In the example, the additional code, <i>what</i>, moves the bitmap to the position of the</p><p style="padding-left: 107pt;text-indent: 0pt;text-align: left;">mouse cursor. The function <span class="s3">GETNOUSESTATE </span>will be <span class="s3">ADVISE</span>d when the mouse moves</p><p style="padding-left: 106pt;text-indent: 0pt;line-height: 106%;text-align: left;">into the window. This will cause the bitmap to follow the mouse cursor. <span class="s3">ADVISE </span>will be undone when the mouse leaves the window or when a mouse button is pushed. The <span class="s3">ADVISE</span>ing will be done and undone by changing the <span class="s3">CURSORINFN </span>, <span class="s3">CURSOROUTFN</span>, and <span class="s3">BUTTONEVENTFN </span>for the window.</p><p style="text-indent: 0pt;text-align: left;"><br/></p><h2 style="padding-left: 35pt;text-indent: 0pt;text-align: left;"><a name="a112">Changing the Cursor                                                                                        </a></h2><p style="text-indent: 0pt;text-align: left;"><br/></p><p style="padding-top: 4pt;padding-left: 107pt;text-indent: 0pt;text-align: left;">One last part of the example, to give the impression that a bitmap is dragged around a window, the original cursor should disappear. Try typing:</p><p class="s3" style="padding-top: 6pt;padding-left: 143pt;text-indent: 0pt;text-align: left;">(CURSOR (CURSORCREATE (BITMAPCREATE 1 l) 1 1]</p><p style="padding-top: 7pt;padding-left: 107pt;text-indent: 0pt;text-align: left;">into the Executive Window. This causes the original cursor to disappear. It reappears when you type</p><p class="s3" style="padding-top: 6pt;padding-left: 143pt;text-indent: 0pt;text-align: left;">(CURSOR T)</p><p style="padding-top: 7pt;padding-left: 107pt;text-indent: 0pt;text-align: left;">When the cursor is invisible, and the bitmap moves as the cursor moves, the illusion is given that the bitmap is dragged around the window.</p><p style="text-indent: 0pt;text-align: left;"><br/></p><h2 style="padding-left: 35pt;text-indent: 0pt;text-align: left;"><a name="a113">Functions for Tracing the Cursor                                                                   </a></h2><p style="text-indent: 0pt;text-align: left;"><br/></p><p style="padding-top: 4pt;padding-left: 107pt;text-indent: 0pt;text-align: left;">To actually have a bitmap trace (follow) the cursor, the environment must be set up so that when the cursor enters the tracing region the trace is turned on, and when the</p><p style="padding-left: 107pt;text-indent: 0pt;line-height: 106%;text-align: left;">cursor leaves the tracing region the trace is turned off. The function <span class="s3">Establish/Trace/Data </span>will do this. Type it in as it appears (include comments that will help you remember what the function does).</p><p style="text-indent: 0pt;text-align: left;"><br/></p><p class="s3" style="padding-left: 107pt;text-indent: 0pt;line-height: 11pt;text-align: left;">(DEFINEQ (Establish/Trace/Data</p><p class="s3" style="padding-left: 143pt;text-indent: -12pt;line-height: 88%;text-align: left;">[LAMBDA (wnd tracebitmap cursor/rightoffset cursor/heightoffset GCGAGP)</p><p style="text-indent: 0pt;text-align: left;"><br/></p><p class="s3" style="padding-left: 143pt;text-indent: 0pt;line-height: 88%;text-align: left;">(* * This function is called to establish the data to trace the desired bitmap. &quot;wnd&quot; is the window in which the tracing is to take place, &quot;tracebitmap&quot; is the tracing bitmap, &quot;cursor/rightoffset&quot; and &quot;cursor/heightoffset&quot; are integers which detemine the hotspot of the tracing bitmap.</p><p class="s3" style="padding-left: 143pt;text-indent: 0pt;line-height: 88%;text-align: left;">As &quot;cursor/heightoffset and &quot;cursor/rightoffset&quot; increase the cursor hotspot moves up and to the right.</p><p class="s3" style="padding-left: 143pt;text-indent: 0pt;line-height: 10pt;text-align: left;">If GCGAGP is non-NIL, GCGAG will be disabled.)</p><p style="text-indent: 0pt;text-align: left;"><br/></p><p class="s3" style="padding-left: 107pt;text-indent: 0pt;text-align: left;">(PROG NIL</p><p class="s3" style="padding-top: 8pt;padding-left: 143pt;text-indent: 0pt;line-height: 11pt;text-align: left;">(if (OR (NULL wnd)</p><p class="s3" style="padding-left: 111pt;text-indent: 0pt;line-height: 10pt;text-align: center;">(NULL tracebitmap))</p><p class="s3" style="padding-left: 197pt;text-indent: -30pt;line-height: 88%;text-align: left;">then (PLAYTUNE (LIST (CONS 1000 4000))) (RETURN))</p><p class="s3" style="padding-left: 143pt;text-indent: 0pt;line-height: 10pt;text-align: left;">(if GCGAGP</p><p class="s3" style="padding-left: 167pt;text-indent: 0pt;line-height: 11pt;text-align: left;">then (GCGAG))</p><p class="s3" style="padding-top: 8pt;padding-left: 155pt;text-indent: 0pt;text-align: left;">(* * Create a blank cursor.)</p><p class="s3" style="padding-top: 8pt;padding-left: 143pt;text-indent: 0pt;line-height: 11pt;text-align: left;">(SETQ *BLANKCURSOR*(BITMAPCREATE 16 16))</p><p class="s3" style="padding-left: 143pt;text-indent: 0pt;line-height: 11pt;text-align: left;">(SETQ *BLANKTRACECURSOR*(CURSORCREATE *BLANKCURSOR*))</p><p style="text-indent: 0pt;text-align: left;"><br/></p><p class="s3" style="padding-top: 6pt;padding-left: 155pt;text-indent: 0pt;line-height: 88%;text-align: left;">(* * Set the CURSOR IN and OUT FNS for wnd to the following:)</p><p class="s3" style="padding-top: 9pt;padding-left: 143pt;text-indent: 0pt;line-height: 11pt;text-align: left;">(WINDOWPROP wnd (QUOTE CURSORINFN)</p><p class="s3" style="padding-left: 143pt;text-indent: 72pt;line-height: 88%;text-align: left;">(FUNCTION SETUP/TRACE)) (WINDOWPROP wnd (QUOTE CURSOROUTFN)</p><p class="s3" style="padding-left: 215pt;text-indent: 0pt;line-height: 10pt;text-align: left;">(FUNCTION UNTRACE/CURSOR))</p><p class="s3" style="padding-top: 9pt;padding-left: 161pt;text-indent: -6pt;line-height: 88%;text-align: left;">(* * To allow the bitmap to be set down in the window by pressing a mouse button, include this line.</p><p class="s3" style="padding-left: 161pt;text-indent: 0pt;line-height: 10pt;text-align: left;">Otherwise, it is not needed)</p><p class="s3" style="padding-top: 8pt;padding-left: 143pt;text-indent: 0pt;line-height: 11pt;text-align: left;">(WINDOWPROP wnd (QUOTE BUTTONEVENTFN)</p><p class="s3" style="padding-left: 143pt;text-indent: 72pt;line-height: 88%;text-align: left;">(FUNCTION PLACE/BITMAP/IN/WINDOW)) (WINDOWPROP wnd (QUOTE CURSOROUTFN)</p><p class="s3" style="padding-left: 143pt;text-indent: 12pt;line-height: 20pt;text-align: left;">(* * Set up Global Variables for the tracing operation) (SETQ *TRACEBITMAP* tracebitmap</p><p class="s3" style="padding-left: 143pt;text-indent: 0pt;line-height: 88%;text-align: left;">(SETQ *RIGHTTRACE/OFFSET*(OR cursor/rightoffset 0)) (SETQ *HEIGHTTRACE/OFFSET*(OR cxursor heightoffset 0)) (SETQ *OLDBITMAPPOSITION*(BITMAPCREATE (BITMAPWIDTH</p><p class="s3" style="padding-left: 161pt;text-indent: 0pt;line-height: 9pt;text-align: left;">tracebitmap)</p><p class="s3" style="padding-top: 9pt;padding-left: 161pt;text-indent: 0pt;line-height: 11pt;text-align: left;">tracebitmap)))</p><p class="s3" style="padding-left: 143pt;text-indent: 0pt;line-height: 11pt;text-align: left;">(SETQ *TRACEWINDOW* wnd]))</p><p class="s3" style="padding-left: 75pt;text-indent: 0pt;line-height: 11pt;text-align: left;">(BITMAPHEIGHT</p><p style="text-indent: 0pt;text-align: left;"><br/></p><p style="padding-top: 4pt;padding-left: 107pt;text-indent: 0pt;text-align: left;">When the function <span class="s3">Establish/Trace/Data </span>is called, the functions <span class="s3">SETUP/TRACE </span>and</p><p class="s3" style="padding-left: 107pt;text-indent: 0pt;line-height: 107%;text-align: left;">UNTRACE/CURSOR <span class="p">will be installed as the values of the window’s </span>WlNDOWPROPS <span class="p">, and will be used to turn the trace on and off. Those functions should be typed in, then:</span></p><p style="text-indent: 0pt;text-align: left;"><br/></p><p class="s3" style="padding-left: 131pt;text-indent: -24pt;line-height: 88%;text-align: left;">(DEFINEQ (SETUP/TRACE [LAMBDA (wnd)</p><p class="s3" style="padding-top: 9pt;padding-left: 143pt;text-indent: 0pt;line-height: 11pt;text-align: left;">(* * This function is wnd’s CURSORINFN.</p><p class="s3" style="padding-left: 143pt;text-indent: 0pt;line-height: 88%;text-align: left;">It simply resets the last trace position and the current tracing region. It also readvises GETMOUSESTATE to perform the trace function after each call.)</p><p class="s3" style="padding-top: 9pt;padding-left: 131pt;text-indent: 0pt;line-height: 11pt;text-align: left;">(if *TRACEBITMAP*</p><p class="s3" style="padding-left: 167pt;text-indent: -24pt;line-height: 88%;text-align: left;">then (SETQ *LAST-TRACE-XPOS* -2000) (SETQ *LAST-TRACE-YPOS* -2000)</p><p class="s3" style="padding-left: 167pt;text-indent: 0pt;line-height: 88%;text-align: left;">(SETQ *WNDREGION* (WINDOWPROP wnd (QUOTE REGION))) (WINDOWPROP wnd (QUOTE TRACING)</p><p class="s3" style="padding-left: 191pt;text-indent: 0pt;line-height: 10pt;text-align: left;">T)</p><p class="s3" style="padding-top: 8pt;padding-left: 143pt;text-indent: 0pt;text-align: left;">(* * make the cursor disappear)</p><p class="s3" style="padding-top: 9pt;padding-left: 143pt;text-indent: 0pt;line-height: 88%;text-align: left;">(CURSOR *BLANKTRACECURSOR*) (ADVISE (QUOTE GETMOUSESTATE)</p><p class="s3" style="padding-left: 179pt;text-indent: 0pt;line-height: 88%;text-align: left;">(QUOTE AFTER) NIL</p><p class="s3" style="padding-left: 179pt;text-indent: 0pt;line-height: 10pt;text-align: left;">(QUOTE (TRACE/CURSOR]))</p><p class="s3" style="padding-top: 9pt;padding-left: 113pt;text-indent: -6pt;line-height: 88%;text-align: left;">(DEFINEQ (UNTRACE/CURSOR [LAMBDA (wnd)</p><p style="text-indent: 0pt;text-align: left;"><br/></p><p class="s3" style="padding-left: 143pt;text-indent: 0pt;line-height: 88%;text-align: left;">(* * This function is wnd’s CURSOROUTFN. The function first checks if the cursor is currently being traced; if so, it replaces the tracing bitmap with what is under it and then turns tracing off by unadvising GETMOUSESTATE and setting the TRACING window property of *TRACEWINDOW* to NIL.)</p><p class="s3" style="padding-top: 9pt;padding-left: 113pt;text-indent: 0pt;text-align: left;">(if (WINDOWPROP *TRACEWINDOW*(QUOTE TRACING))</p><p style="text-indent: 0pt;text-align: left;"><br/></p><p class="s3" style="padding-top: 6pt;padding-left: 191pt;text-indent: -48pt;line-height: 88%;text-align: left;">then (BITBLT *OLDBITMAPPOSITION* 0 0 (SCREENBITMAP) (IPLUS (CAR *WNDREGION*)*LAST-TRACE-XPOS*) (IPLUS (CADR *WNDREGION*)*LAST-TRACE-YPOS*))</p><p class="s3" style="padding-left: 167pt;text-indent: 0pt;line-height: 10pt;text-align: left;">(WINDOWPROP *TRACEWINDOW*(QUOTE TRACING)</p><p class="s3" style="padding-left: 287pt;text-indent: 0pt;line-height: 11pt;text-align: left;">NIL))</p><p class="s3" style="padding-top: 8pt;padding-left: 113pt;text-indent: 29pt;line-height: 177%;text-align: left;">(* * replace the original cursor shape) (CURSOR T)</p><p class="s3" style="padding-left: 113pt;text-indent: 29pt;line-height: 177%;text-align: left;">(* * unadvise GETMOUSESTATE) (UNADVISE (QUOTE GETMOUSESTATE]))</p><p style="padding-top: 7pt;padding-left: 107pt;text-indent: 0pt;text-align: left;">The function <span class="s3">SETUP/TRACE </span>has a helper function that you must also type in. It is</p><p class="s3" style="padding-left: 107pt;text-indent: 0pt;text-align: left;">TRACE/CURSOR<span class="p">:</span></p><p class="s3" style="padding-top: 8pt;padding-left: 113pt;text-indent: -6pt;line-height: 88%;text-align: left;">(DEFINEQ (TRACE/CURSOR [LAMBDA NIL</p><p style="text-indent: 0pt;text-align: left;"><br/></p><p class="s3" style="padding-left: 143pt;text-indent: 0pt;line-height: 88%;text-align: left;">(* * This function does the actual BITBLTing of the tracing bitmap. This function is called after a GETMOUSESTATE, while tracing.)</p><p class="s3" style="padding-top: 6pt;padding-left: 34pt;text-indent: 0pt;line-height: 11pt;text-align: center;">(PROG ((xpos (IDIFFERENCE (LASTMOUSEX *TRACEWINDOW*)</p><p class="s3" style="padding-left: 191pt;text-indent: 0pt;line-height: 11pt;text-align: left;">*RIGHTTRACE/OFFSET*))</p><p class="s3" style="padding-top: 5pt;padding-left: 75pt;text-indent: 0pt;line-height: 11pt;text-align: center;">(ypos (IDIFFERENCE (LASTMOUSEY *TRACEWINDOW*)</p><p class="s3" style="padding-left: 191pt;text-indent: 0pt;line-height: 11pt;text-align: left;">*HEIGHTTRACE/OFFSET*))</p><p class="s3" style="padding-top: 6pt;padding-left: 143pt;text-indent: 0pt;line-height: 88%;text-align: left;">(* * If there is an error in the function, press the right button to unadvise the function. This will keep the machine from locking up.)</p><p class="s3" style="padding-top: 6pt;padding-left: 143pt;text-indent: 0pt;line-height: 11pt;text-align: left;">(if (LASTMOUSESTATE RIGHT)</p><p class="s3" style="padding-left: 143pt;text-indent: 24pt;line-height: 88%;text-align: left;">then (UNADVISE (QUOTE GETMOUSESTATE))) (if (AND (NEQ xpos *LAST-TRACE-XPOS*)</p><p class="s3" style="padding-left: 197pt;text-indent: 0pt;line-height: 9pt;text-align: left;">(NEQ ypos *LAST-TRACE-YPOS*))</p><p class="s3" style="padding-left: 167pt;text-indent: 0pt;text-align: left;">then</p><p class="s3" style="padding-top: 6pt;padding-left: 143pt;text-indent: 0pt;line-height: 90%;text-align: left;">(* * Restore what was under the old position of the trace bitmap<span class="s14">)</span></p><p class="s3" style="padding-top: 6pt;padding-left: 191pt;text-indent: -24pt;line-height: 88%;text-align: left;">(BITBLT *OLDBITMAPPOSITION* 0 0 (SCREENBITMAP) (IPLUS (CAR *WNDREGION*)*LAST-TRACE-XPOS*) (IPLUS (CADR *WNDREGION*)*LAST-TRACE-YPOS*))</p><p class="s3" style="padding-top: 7pt;padding-left: 143pt;text-indent: 0pt;line-height: 88%;text-align: left;">(* * Save what will be under the position of the new trace bitmap)</p><p class="s3" style="padding-top: 7pt;padding-left: 191pt;text-indent: -24pt;line-height: 88%;text-align: left;">(BITBLT (SCREENBITMAP) (IPLUS (CAR *WNDREGION*)</p><p class="s3" style="padding-left: 111pt;text-indent: 0pt;line-height: 10pt;text-align: center;">xpos)</p><p class="s3" style="padding-left: 215pt;text-indent: -24pt;line-height: 88%;text-align: left;">(IPLUS (CADR *WNDREGION*) ypos)*OLDBITMAPPOSITION* 0 0)</p><p class="s3" style="padding-top: 7pt;padding-left: 143pt;text-indent: 0pt;line-height: 88%;text-align: left;">(* * BITBLT the trace bitmap onto the new position of the mouse)</p><p class="s3" style="padding-top: 7pt;padding-left: 191pt;text-indent: -24pt;line-height: 88%;text-align: left;">(BITBLT *TRACEBITMAP* 0 0 (SCREENBITMAP) (IPLUS (CAR *WNDREGION*)</p><p class="s3" style="padding-left: 111pt;text-indent: 0pt;line-height: 10pt;text-align: center;">xpos)</p><p class="s3" style="padding-left: 191pt;text-indent: 0pt;line-height: 10pt;text-align: left;">(IPLUS (CADR *WNDREGION*)</p><p class="s3" style="padding-left: 111pt;text-indent: 0pt;line-height: 10pt;text-align: center;">ypos)</p><p class="s3" style="padding-left: 191pt;text-indent: 0pt;line-height: 88%;text-align: left;">NIL NIL (QUOTE INPUT) (QUOTE PAINT))</p><p class="s3" style="padding-top: 6pt;padding-left: 167pt;text-indent: -24pt;line-height: 150%;text-align: left;">(* * Save the current position as the last trace position.) (SETQ *LAST-TRACE-XPOS* xpos)</p><p style="text-indent: 0pt;text-align: left;"><br/></p><p class="s3" style="padding-top: 5pt;padding-left: 167pt;text-indent: 0pt;text-align: left;">(SETQ *LAST-TRACE-YPOS* ypos]))</p><p style="text-indent: 0pt;text-align: left;"><br/></p><p style="padding-left: 107pt;text-indent: 0pt;line-height: 107%;text-align: left;">The helper function for <span class="s3">UNTRACE/CURSOR </span>, called <span class="s3">UNDO/TRACE/DATA</span>, must also be added to the environment:</p><p style="text-indent: 0pt;text-align: left;"><br/></p><p class="s3" style="padding-left: 131pt;text-indent: -24pt;line-height: 88%;text-align: left;">(DEFINEQ (UNDO/TRACE/DATA [LAMBDA NIL</p><p style="text-indent: 0pt;text-align: left;"><br/></p><p class="s3" style="padding-left: 179pt;text-indent: -6pt;line-height: 88%;text-align: left;">(* * The purpose of this function is to turn tracing off and to free up the global variables used to trace the bitmap so that they can be garbage collected.)</p><p style="text-indent: 0pt;text-align: left;"><br/></p><p class="s3" style="padding-left: 179pt;text-indent: 0pt;line-height: 88%;text-align: left;">(* * Check if the cursor is currently being traced. It so, turn it off.)</p><p class="s3" style="padding-top: 9pt;padding-left: 143pt;text-indent: 0pt;line-height: 11pt;text-align: left;">(UNTRACE/CURSOR)</p><p class="s3" style="padding-left: 215pt;text-indent: -72pt;line-height: 88%;text-align: left;">(WINDOWPROP *TRACEWINDOW*(QUOTE CURSORINFN) NIL)</p><p class="s3" style="padding-left: 215pt;text-indent: -72pt;line-height: 88%;text-align: left;">(WINDOWPROP *TRACEWINDOW*(QUOTE CURSOROUTFN) NIL)</p><p class="s3" style="padding-left: 143pt;text-indent: 0pt;line-height: 10pt;text-align: left;">(SETQ *TRACEBITMAP* NIL)</p><p class="s3" style="padding-left: 143pt;text-indent: 0pt;line-height: 88%;text-align: left;">(SETQ *RIGHTTRACE/OFFSET* NIL) (SETQ *HEIGHTTRACE/OFFSET* NIL) (SETQ *OLDBITMAPPOSITION* NIL) (SETQ *TRACEWINDOW* NIL)</p><p class="s3" style="padding-top: 9pt;padding-left: 143pt;text-indent: 30pt;line-height: 177%;text-align: left;">(* * Turn GCGAG on) (GCGAG T]))</p><p style="padding-top: 7pt;padding-left: 107pt;text-indent: 0pt;line-height: 107%;text-align: left;">Finally, if you included the <span class="s3">WlNDOWPROP </span>to allow the user to place the bitmap in the window by pressing a mouse button, you must also type this function:</p><p style="text-indent: 0pt;text-align: left;"><br/></p><p class="s3" style="padding-left: 131pt;text-indent: -24pt;line-height: 88%;text-align: left;">(DEFINEQ (PLACE/BITMAP/IN/WINDOW [LAMBDA (wnd)</p><p class="s3" style="padding-top: 9pt;padding-left: 143pt;text-indent: 0pt;line-height: 11pt;text-align: left;">(UNADVISE (GETMOUSESTATE))</p><p class="s3" style="padding-left: 173pt;text-indent: -30pt;line-height: 88%;text-align: left;">(BITBLT *TRACEBITMAP* 0 0 (SCREENBITMAP) (IPLUS (CAR *WNDREGION*)</p><p class="s3" style="padding-left: 111pt;text-indent: 0pt;line-height: 10pt;text-align: center;">xpos)</p><p class="s3" style="padding-left: 173pt;text-indent: 0pt;line-height: 10pt;text-align: left;">(IPLUS (CADR *WNDREGION*)</p><p class="s3" style="padding-left: 111pt;text-indent: 0pt;line-height: 10pt;text-align: center;">ypos)</p><p class="s3" style="padding-left: 173pt;text-indent: 0pt;line-height: 88%;text-align: left;">NIL NIL (QUOTE INPUT) (QUOTE PAINT]</p><p style="padding-top: 6pt;padding-left: 107pt;text-indent: 0pt;text-align: left;">That’s all the functions!</p><p style="text-indent: 0pt;text-align: left;"><br/></p><h2 style="padding-left: 35pt;text-indent: 0pt;text-align: left;"><a name="a114">Running the Functions                                                                                    </a></h2><p style="text-indent: 0pt;text-align: left;"><br/></p><p style="padding-top: 4pt;padding-left: 107pt;text-indent: 0pt;text-align: left;">To run the functions you just typed in, first set a variable to a window by typing something like</p><p class="s3" style="padding-top: 6pt;padding-left: 143pt;text-indent: 0pt;text-align: left;">(SETQ EXAMPLE.WINDOW (CREATEW))</p><p style="padding-top: 7pt;padding-left: 107pt;text-indent: 0pt;text-align: left;">into the Executive Window, and sweeping out a new window. Now, set a variable to a bitmap, by typing, perhaps,</p><p class="s3" style="padding-top: 6pt;padding-left: 143pt;text-indent: 0pt;text-align: left;">(SETQ EXAMPLE.BTM (EDITBM))</p><p style="text-indent: 0pt;text-align: left;"><br/></p><p style="padding-top: 4pt;padding-left: 107pt;text-indent: 0pt;text-align: left;">Type</p><p class="s3" style="padding-top: 7pt;padding-left: 143pt;text-indent: 0pt;text-align: left;">(Estab1ish/Trace/Data EXAMPLE.WINDOW EXAMPLE.BTM))</p><p style="padding-top: 7pt;padding-left: 107pt;text-indent: 0pt;text-align: left;">When you move the cursor into the window, the cursor will drag the bitmap.</p><p style="padding-top: 7pt;padding-left: 107pt;text-indent: 0pt;text-align: left;">(If you want to be able to make menu selections while tracing the cursor, make sure</p><p style="padding-left: 107pt;text-indent: 0pt;text-align: left;">that the hotspot of the cursor is set to the extreme right of the bitmap. Otherwise, the menu will be destroyed by the <span class="s3">BITBLT </span>s of the trace functions.)</p><p style="padding-top: 7pt;padding-left: 107pt;text-indent: 0pt;text-align: left;">To stop tracing, do one of the following:</p></li></ol></li><li><p style="padding-top: 7pt;padding-left: 117pt;text-indent: -9pt;text-align: left;">Move the mouse cursor out of the window</p></li><li><p style="padding-top: 7pt;padding-left: 119pt;text-indent: -11pt;text-align: left;">Press the right mouse button</p></li><li><p style="padding-top: 7pt;padding-left: 117pt;text-indent: -9pt;text-align: left;">Call the function <span class="s3">UNTRACE/CURSOR</span></p><ol id="l25"><li><h1 style="padding-top: 3pt;padding-left: 70pt;text-indent: -35pt;text-align: left;"><a name="bookmark26">GLOSSARY OF GLOBAL SYSTEM VARIABLES</a></h1><p style="padding-left: 35pt;text-indent: 0pt;line-height: 6pt;text-align: left;"><span><img width="640" height="8" alt="image" src="Image_158.png"/></span></p><p style="text-indent: 0pt;text-align: left;"><br/></p><p style="padding-top: 15pt;padding-left: 107pt;text-indent: 0pt;text-align: left;">As you can tell by now, there are many system variables in Medley that are useful to know. The following sections gather many of the important variables together into</p><p style="padding-left: 107pt;text-indent: 0pt;text-align: left;">groups relating to directory searching, system flags, history lists, system menus, windows, and, of course, the catchall miscellaneous category.</p><p style="text-indent: 0pt;text-align: left;"><br/></p><h2 style="padding-left: 35pt;text-indent: 0pt;text-align: left;"><a name="a115">Directories                                                                                                         </a></h2><p style="text-indent: 0pt;text-align: left;"><br/></p><p class="s3" style="padding-top: 5pt;padding-left: 107pt;text-indent: 0pt;text-align: left;">DISPLAYFONTDIRECTORIES</p><p style="padding-top: 7pt;padding-left: 143pt;text-indent: 0pt;line-height: 106%;text-align: justify;">Its value is a list of directories to search for the bitmap files for display font s. Usually, it contains the <span class="s3">FONT </span>directory where you copies the bitmap files (see Chapter 16), and the current connected directory. The current connected</p><p style="padding-left: 143pt;text-indent: 0pt;line-height: 12pt;text-align: justify;">directory is specified by the atom <span class="s3">NIL</span>. Here is an example value of</p><p class="s3" style="padding-left: 143pt;text-indent: 0pt;text-align: left;">DISPLAYFONTDIRECTORIES<span class="p">.</span></p><p style="text-indent: 0pt;text-align: left;"><br/></p><p style="padding-left: 142pt;text-indent: 0pt;text-align: left;"><span><img width="450" height="256" alt="image" src="Image_159.gif"/></span></p><p style="padding-left: 107pt;text-indent: 62pt;line-height: 186%;text-align: left;">Figure 24.1. Value for the Atom <span class="s3">DISPLAYFONTDIRECTORIES INTERPRESSFONTDIRECTORIES</span></p><p style="padding-left: 143pt;text-indent: 0pt;line-height: 10pt;text-align: justify;">Is set to a list of directories to search for the font width files for InterPress font s.</p><p style="text-indent: 0pt;text-align: left;"><br/></p><p class="s3" style="padding-left: 107pt;text-indent: 0pt;text-align: left;">DIRECTORIES</p><p style="padding-top: 7pt;padding-left: 143pt;text-indent: 0pt;text-align: left;">This variable is bound to a list of the directories you will be using (see Figure 24-2). The system uses this variable when it is trying to find a file to load. It checks each directory in the list, until the file is foun d. <span class="s3">NIL </span>in list means to check the current connected directory.</p><p class="s3" style="padding-top: 9pt;padding-left: 107pt;text-indent: 0pt;text-align: left;">LISPUSERSDIRECTORIES</p><p style="padding-top: 7pt;padding-left: 143pt;text-indent: 0pt;text-align: left;">Its value is a list of directories to search for library package files.</p><p style="text-indent: 0pt;text-align: left;"><br/></p><h2 style="padding-top: 4pt;padding-left: 35pt;text-indent: 0pt;text-align: left;"><a name="a116">Flags                                                                                                                  </a></h2><p style="text-indent: 0pt;text-align: left;"><br/></p><p class="s3" style="padding-top: 5pt;padding-left: 107pt;text-indent: 0pt;text-align: left;">DWIMIFYCOMPFLG</p><p style="padding-top: 7pt;padding-left: 143pt;text-indent: 0pt;line-height: 106%;text-align: justify;">This flag, if set to <span class="s3">T</span>, will cause all expressions to be completely dwinified before the expression is compiled (see Chapter 9). In this state, when the system does not recognize a function of keyword, it will compare the word to a system</p><p style="padding-left: 143pt;text-indent: 0pt;line-height: 107%;text-align: justify;">maintained list to determine whether the word is a macro, <span class="s3">CLISP </span>word, or misspelled user-defined variable.</p><p style="padding-top: 6pt;padding-left: 143pt;text-indent: 0pt;line-height: 107%;text-align: justify;">An example of swinifying before compilation is to convert an <span class="s3">IF </span>call to a <span class="s3">COND</span>. before they are compiled. Undwimified expressions can cause inaccurate</p><p style="padding-left: 143pt;text-indent: 0pt;line-height: 107%;text-align: justify;">compilation. This flag is set by the system to <span class="s3">NIL</span>. Normally, you want this set to <span class="s3">T</span>. For more information on DWIM, refer to the <i>IRM</i>.</p><p class="s3" style="padding-top: 9pt;padding-left: 107pt;text-indent: 0pt;text-align: left;">SYSPRETTYFLAG</p><p style="padding-top: 7pt;padding-left: 143pt;text-indent: 0pt;line-height: 107%;text-align: justify;">When set to <span class="s3">T</span>, all lists returned to the executive window are pretty printed. This flag is originally set by the system to <span class="s3">NIL</span>.</p><p class="s3" style="padding-top: 9pt;padding-left: 107pt;text-indent: 0pt;text-align: left;">CLISPIFTRANFLG</p><p style="padding-top: 7pt;padding-left: 143pt;text-indent: 0pt;line-height: 107%;text-align: justify;">When set to <span class="s3">T</span>, keeps the <span class="s3">IF </span>expression, rather than the <span class="s3">COND </span>translation in your code.</p><p class="s3" style="padding-top: 9pt;padding-left: 107pt;text-indent: 0pt;text-align: left;">PRETTYTABFLG</p><p style="padding-top: 7pt;padding-left: 143pt;text-indent: 0pt;line-height: 107%;text-align: justify;">When set to <span class="s3">T</span>, the pretty printer puts out a tab character rather than several spaces to try to make code align. If <span class="s3">NIL</span>, it uses space characters instead.</p><p class="s3" style="padding-top: 9pt;padding-left: 107pt;text-indent: 0pt;text-align: left;">FONTCHANGEFLG</p><p style="padding-top: 7pt;padding-left: 143pt;text-indent: 0pt;text-align: left;">If NIL, then when pretty printing no font changes will happen (e.g., a smaller font for comments, bold for clip words, and so forth). The default is the atom ALL, so different font s are used where appropriate.</p><p style="text-indent: 0pt;text-align: left;"><br/></p><p class="s3" style="padding-left: 107pt;text-indent: 0pt;text-align: left;">AUTOBACKTRACEFLG</p><p style="padding-top: 7pt;padding-left: 143pt;text-indent: 0pt;text-align: left;">There are many possible values for this variable. They affect when the back</p><p style="padding-left: 143pt;text-indent: 0pt;text-align: left;">trace window appears with the break window, and how much detail is included in it. The values of this variable include:</p><ul id="l26"><li><p class="s3" style="padding-top: 7pt;padding-left: 155pt;text-indent: -12pt;line-height: 107%;text-align: left;">NIL<span class="p">, its initial value. The back trace window is not brought up when an error is generated, until you open it yourself.</span></p></li><li><p class="s3" style="padding-top: 6pt;padding-left: 155pt;text-indent: -12pt;text-align: left;">T<span class="p">, which means that the back trace </span>BT <span class="p">window is opened for error breaks</span></p></li><li><p class="s3" style="padding-top: 7pt;padding-left: 155pt;text-indent: -12pt;line-height: 107%;text-align: left;">BT! <span class="p">brings up a back trace window with more detail, </span>BT!<span class="p">, window for error breaks</span></p></li><li><p class="s3" style="padding-top: 6pt;padding-left: 155pt;text-indent: -12pt;line-height: 107%;text-align: left;">ALWAYS <span class="p">brings up a backtrace </span>BT <span class="p">window for both error breaks, and breaks caused by calling the function </span>BREAK</p></li><li><p class="s3" style="padding-top: 7pt;padding-left: 155pt;text-indent: -12pt;line-height: 107%;text-align: left;">ALWAYS! <span class="p">brings up a backtrace window with more detail, </span>BT!<span class="p">, for both error breaks and breaks caused by calling the function</span></p><p style="text-indent: 0pt;text-align: left;"><br/></p><p class="s3" style="padding-top: 5pt;padding-left: 107pt;text-indent: 0pt;text-align: left;">NOSPELLFLG</p><p style="padding-top: 7pt;padding-left: 143pt;text-indent: 0pt;text-align: left;">Is initially bound to <span class="s3">NIL</span>, so that <span class="s3">DWIM </span>tries to correct all spelling errors,</p><p style="padding-left: 143pt;text-indent: 0pt;text-align: left;">whether they are in a form you just typed in or within a function being run. If the variable is <span class="s3">T</span>, then no spelling correction is performed. This variable is</p><p style="padding-left: 143pt;text-indent: 0pt;text-align: left;">automatically reset to <span class="s3">T </span>when you are compiling a file. If it has some other non-</p><p class="s3" style="padding-left: 143pt;text-indent: 0pt;text-align: left;">NIL <span class="p">value, then spelling correction is only performed on type-in.</span></p><p style="text-indent: 0pt;text-align: left;"><br/></p><h2 style="padding-left: 35pt;text-indent: 0pt;text-align: left;"><a name="a117">History Lists                                                                                                      </a></h2><p class="s3" style="padding-top: 10pt;padding-left: 107pt;text-indent: 0pt;text-align: left;">LISPXHISTORY</p><p style="padding-top: 7pt;padding-left: 143pt;text-indent: 0pt;text-align: left;">Originally set to the list <span class="s3">(NIL 0 30 100) </span>, with the following argument</p><p style="padding-left: 143pt;text-indent: 0pt;line-height: 107%;text-align: left;">interpretation. The <span class="s3">NIL </span>is the list (implemented as a circular queue) to which the top level commands append. 0 is the current prompt number. 30 is the</p><p style="padding-left: 143pt;text-indent: 0pt;line-height: 11pt;text-align: left;">maximum length of the history list. 100 is the highest number used as a</p><p style="padding-left: 143pt;text-indent: 0pt;text-align: left;">prompt. This is a system maintained list used by the programmers assistant commands <span class="s3">REDO</span>, <span class="s3">UNDO</span>, <span class="s3">FIX</span>, and ?? use to retrieve past function calls.</p><p style="padding-top: 7pt;padding-left: 143pt;text-indent: 0pt;line-height: 107%;text-align: left;">To delete the history list, reset the variable <span class="s3">LISPXHISTORY </span>to its original value of <span class="s3">(NIL 0 30 100)</span>.</p><p style="padding-top: 7pt;padding-left: 143pt;text-indent: 0pt;text-align: left;">Setting this variable to <span class="s3">NIL </span>disables all the programmers assistant features.</p><p class="s3" style="padding-top: 10pt;padding-left: 107pt;text-indent: 0pt;text-align: left;">EDITHISTORY</p><p style="padding-top: 7pt;padding-left: 143pt;text-indent: 0pt;line-height: 107%;text-align: left;">This is also set to (<span class="s3">NIL 0 30 100</span>), and has the same description as <span class="s3">LISPXHISTORY</span>. This list allows you to <span class="s3">UNDO </span>edits. You reset this the same way as <span class="s3">LISPXHISTORY</span>.</p><p style="text-indent: 0pt;text-align: left;"><br/></p><h2 style="padding-left: 35pt;text-indent: 0pt;text-align: left;"><a name="a118">System Menus                                                                                                  </a></h2><p style="text-indent: 0pt;text-align: left;"><br/></p><p style="padding-top: 4pt;padding-left: 107pt;text-indent: 0pt;line-height: 106%;text-align: left;">System menus are all bound to global varieables and are easy to modyfy. If the menu name is set to the <span class="s3">NIL </span>value, the menu will be recreated using an items list bound to a global variable.</p><p style="padding-top: 9pt;padding-left: 107pt;text-indent: 0pt;text-align: left;">To change a system menu, edit the items list bound to the appropriate global variable (system menus use this items list with the default <span class="s3">WHENSELECTEDFN </span>), then set the</p><p style="padding-left: 107pt;text-indent: 0pt;text-align: left;">value of the name to NIL. The next time you need the menu, it will be created from the items list you just edited. The names of system menus and the items lists follow.</p><p style="text-indent: 0pt;text-align: left;"><br/></p><p style="padding-left: 107pt;text-indent: 0pt;text-align: left;">BackgroundMenu</p><p style="padding-top: 7pt;padding-left: 143pt;text-indent: 0pt;text-align: left;">This is the variable bound to the menu this displays when you press the right button in the grey background area of the screen.</p><p style="text-indent: 0pt;text-align: left;"><br/></p><p style="padding-left: 107pt;text-indent: 0pt;text-align: left;">BackgroundMenuCommands</p><p style="padding-top: 7pt;padding-left: 143pt;text-indent: 0pt;line-height: 107%;text-align: left;">This list is used for the list of <span class="s3">ITEMS </span>for the background menu when it is created.</p><p style="padding-top: 9pt;padding-left: 107pt;text-indent: 0pt;text-align: left;">WindowMenu</p><p style="padding-top: 7pt;padding-left: 143pt;text-indent: 0pt;text-align: left;">This is the variable bound to the default window menu displayed when the right mouse button is pressed inside of a window.</p><p style="text-indent: 0pt;text-align: left;"><br/></p><p style="padding-top: 4pt;padding-left: 107pt;text-indent: 0pt;text-align: left;">WindowMenuCommands</p><p style="padding-top: 7pt;padding-left: 143pt;text-indent: 0pt;text-align: left;">This is the list of <span class="s3">ITEM</span>S for the WindowMenu.</p><p style="text-indent: 0pt;text-align: left;"><br/></p><p style="padding-left: 107pt;text-indent: 0pt;text-align: left;">BreakMenu</p><p style="padding-top: 7pt;padding-left: 143pt;text-indent: 0pt;text-align: left;">The menu displayed when the middle mouse button is pressed in a break</p><p style="padding-left: 143pt;text-indent: 0pt;text-align: left;">window.</p><p style="text-indent: 0pt;text-align: left;"><br/></p><p style="padding-left: 107pt;text-indent: 0pt;text-align: left;">BreakMenuCommands</p><p style="padding-top: 7pt;padding-left: 143pt;text-indent: 0pt;text-align: left;">The list of <span class="s3">ITEM </span>for the BreakMenu.</p><p style="text-indent: 0pt;text-align: left;"><br/></p><h2 style="padding-left: 35pt;text-indent: 0pt;text-align: left;"><a name="a119">Windows                                                                                                            </a></h2><p style="text-indent: 0pt;text-align: left;"><br/></p><p class="s3" style="padding-top: 5pt;padding-left: 107pt;text-indent: 0pt;text-align: left;">PROMPTWINDOW</p><p style="padding-top: 7pt;padding-left: 143pt;text-indent: 0pt;text-align: left;">Global name of the prompt window.</p><p style="text-indent: 0pt;text-align: left;"><br/></p><p class="s3" style="padding-top: 5pt;padding-left: 107pt;text-indent: 0pt;text-align: left;">T</p><p style="padding-top: 7pt;padding-left: 143pt;text-indent: 0pt;text-align: left;">Although the value <span class="s3">T </span>has several meanings (such as universal <span class="s3">TRUE</span>), it also</p><p style="padding-left: 143pt;text-indent: 0pt;text-align: left;">stands for the standard output stream. As this is usually the executive window, it may be used as the name for the TTY Window at the top level. Mouse</p><p style="padding-left: 143pt;text-indent: 0pt;line-height: 106%;text-align: left;">processes have their own TTY Windows. A reference to the window T in a mouse driven function (e.g., a <span class="s3">WHENSELECTEFN</span>, Chapter 12) will open a TTY Window for Mouse.</p><p style="text-indent: 0pt;text-align: left;"><br/></p><h2 style="padding-top: 4pt;padding-left: 35pt;text-indent: 0pt;text-align: left;"><a name="a120">Miscellaneous                                                                                                   </a></h2><p class="s3" style="padding-top: 9pt;padding-left: 107pt;text-indent: 0pt;text-align: left;">CLEANUPOPTION</p><p style="padding-top: 7pt;padding-left: 143pt;text-indent: 0pt;text-align: justify;">This is a list of options that you set to automate clean-up after a work session. Example options are listing files, or recompilation. You will want to keep this set to NIL until you become comfortable with the machine.</p><p style="text-indent: 0pt;text-align: left;"><br/></p><p class="s3" style="padding-left: 107pt;text-indent: 0pt;text-align: left;">FILELST</p><p style="padding-top: 7pt;padding-left: 143pt;text-indent: 0pt;text-align: justify;">The list of all the files you loaded.</p><p style="text-indent: 0pt;text-align: left;"><br/></p><p class="s3" style="padding-left: 107pt;text-indent: 0pt;text-align: left;">SYSFILES</p><p style="padding-top: 7pt;padding-left: 143pt;text-indent: 0pt;text-align: justify;">The list of all the files you loaded for the <span class="s3">SYSOUT </span>file.</p><p class="s3" style="padding-top: 10pt;padding-left: 107pt;text-indent: 0pt;text-align: left;">INITIALS</p><p style="padding-top: 7pt;padding-left: 143pt;text-indent: 0pt;text-align: left;">An atom you can bind to your name. If bound, the editor will add your name, in addition to the date, in the editor comment at the beginning of each function.</p><p class="s3" style="padding-top: 9pt;padding-left: 107pt;text-indent: 0pt;text-align: left;">FIRSTNAME</p><p style="padding-top: 7pt;padding-left: 143pt;text-indent: 0pt;text-align: left;">If this variable is set, the system will use it to greet you personally when you log on to your machine.</p><p style="text-indent: 0pt;text-align: left;"><br/></p><p class="s3" style="padding-top: 5pt;padding-left: 107pt;text-indent: 0pt;text-align: left;">INITIALSLST</p><p style="padding-top: 7pt;padding-left: 143pt;text-indent: 0pt;line-height: 107%;text-align: left;">A list of elements of the form (<span class="s3">USERNAME </span>. I<span class="s3">NITIALS</span>) or (<span class="s3">USERNAME FIRSTNAME INITIALS</span>). This list is used by the function <span class="s3">GREET </span>to set your <span class="s3">INITIALS </span>, and your <span class="s3">FIRSTNAME </span>when you log in.</p><p class="s3" style="padding-top: 10pt;padding-left: 107pt;text-indent: 0pt;text-align: left;">#CAREFULCOLUMNS</p><p style="padding-top: 7pt;padding-left: 143pt;text-indent: 0pt;text-align: left;">An integer. <span class="s3">PRETTYPRINT </span>estimates the number of characters in an atom,</p><p style="padding-left: 143pt;text-indent: 0pt;line-height: 106%;text-align: left;">instead of computing it, for efficiency. Unfortunately, for very long atom names, errors can occur. <span class="s3">#CAREFULCOLUMNS </span>is the number of columns from the right within which <span class="s3">PRETTYPRINT </span>should compute the number of characters in each</p><p style="padding-left: 143pt;text-indent: 0pt;line-height: 106%;text-align: left;">atom, to prevent these errors. Initially this is set to zero. <span class="s3">PRETTYPRINT </span>never computes the number of characters in an atom. If you set it to 20 or 30, when <span class="s3">PRETTYPRINT </span>comes within 20 or 30 columns of the right of the window, it will begin computing exactly how many characters are in each atom. This will</p><p style="padding-left: 143pt;text-indent: 0pt;text-align: left;">prevent errors.</p><p style="text-indent: 0pt;text-align: left;"><br/></p><p class="s3" style="padding-left: 107pt;text-indent: 0pt;text-align: left;">DWIMWAIT</p><p style="padding-top: 7pt;padding-left: 143pt;text-indent: 0pt;text-align: left;">Bound to the number of seconds DWIM should wait before it uses the default response, <span class="s3">FIXSPELLDEFAULT </span>, to answer its question.</p><p class="s3" style="padding-top: 10pt;padding-left: 107pt;text-indent: 0pt;text-align: left;">FIXSPELLDEFAULT</p><p style="padding-top: 7pt;padding-left: 143pt;text-indent: 0pt;text-align: left;">Bound to either <span class="s3">Y </span>or <span class="s3">N</span>. Its value is used as the default answer to questions</p><p style="padding-left: 143pt;text-indent: 0pt;line-height: 107%;text-align: left;">asked by <span class="s3">DWIM </span>that you don’t answer in <span class="s3">DWIMWAIT </span>seconds. It is initially bound to Y, but is rebound to <span class="s3">N </span>when <span class="s3">DWIMIFY</span>ing.</p><p style="padding-top: 10pt;padding-left: 108pt;text-indent: 0pt;text-align: left;">\<span class="s3">TimeZoneComp</span></p><p style="padding-top: 7pt;padding-left: 143pt;text-indent: 0pt;text-align: left;">This is the global variable set to the absolute value of the time offset from Greenwich. For EST, \<span class="s3">TimeZoneComp </span>should be set to 5.</p></li></ul></li><li><h1 style="padding-top: 3pt;padding-left: 70pt;text-indent: -35pt;text-align: left;"><a name="bookmark27">OTHER USEFUL REFERENCES</a></h1></li></ol></li></ul></li></ol></li></ol></li></ol><p style="padding-left: 35pt;text-indent: 0pt;line-height: 6pt;text-align: left;"><span><img width="640" height="8" alt="image" src="Image_160.png"/></span></p><p style="text-indent: 0pt;text-align: left;"><br/></p><p style="padding-top: 15pt;padding-left: 107pt;text-indent: 0pt;text-align: left;">Here are some references to works that will be useful to you in addition to this primer. Some of these you have already been referred to, such as:</p><ul id="l27"><li><p style="padding-top: 7pt;padding-left: 118pt;text-indent: -9pt;text-align: left;">The Interlisp-D Reference Manual (IRM)</p></li><li><p style="padding-top: 7pt;padding-left: 118pt;text-indent: -9pt;text-align: left;">The Library Packages Manual</p></li><li><p style="padding-top: 7pt;padding-left: 118pt;text-indent: -9pt;text-align: left;">The User’s Guide to SKETCH</p><p style="text-indent: 0pt;text-align: left;"><br/></p><p style="padding-left: 107pt;text-indent: 0pt;text-align: left;">In addition, you can learn more about Lisp with the books:</p></li><li><p class="s15" style="padding-top: 7pt;padding-left: 119pt;text-indent: -11pt;text-align: left;">Interlisp-D: The l a ngu ago a n d its usage <span class="p">by Steven H. Kaisler. This book was published in 1986 by John Wiley and Sons, NY.</span></p></li><li><p class="s15" style="padding-top: 7pt;padding-left: 119pt;text-indent: -11pt;text-align: left;">Essenti a l LISP <span class="p">by John Anderson, Albert Corbett, and Brian Reiser. This book was published in 1986 by Addison Wesley Publishing Company, Reading, MA. It was</span></p><p style="padding-left: 119pt;text-indent: 0pt;text-align: left;">informed by research on how beginners learn LISP.</p></li><li><p class="s15" style="padding-top: 7pt;padding-left: 119pt;text-indent: -10pt;text-align: left;">The Little Lisper <span class="p">by Daniel P. Friedman and Matthias Felleisen. The second edition of this book was published in 1986 by SRA Associates, Chicago. This book is a</span></p><p style="padding-left: 119pt;text-indent: 0pt;text-align: left;">deceptively simple introduction to recursive programming and the flexible data structures provided by LISP.</p></li><li><p class="s15" style="padding-top: 7pt;padding-left: 119pt;text-indent: -11pt;text-align: left;">LISP <span class="p">by Patrick Winston and Berthold Horn. The second edition of this book was published in 1985 by the Addison Wesley Publishing Company, Reading, MA.</span></p></li><li><p class="s15" style="padding-top: 7pt;padding-left: 119pt;text-indent: -11pt;text-align: left;">LISP: A Gentle Introd uction to Symbolic Comp ut a tion <span class="p">by David S. Touretzky. This book was published in 1984 by the Harper and Row Publishing Company, NY.</span></p><p style="text-indent: 0pt;text-align: left;"><br/></p><p style="padding-left: 107pt;text-indent: 0pt;text-align: left;">Finally, there are three articles about the Interlisp Programming environment:</p></li><li><p style="padding-top: 7pt;padding-left: 119pt;text-indent: -11pt;text-align: left;">Power Tools For Programmers byBeau Sheil. It appeared in <i>Datamation </i>in February, 1983, Pages 131 - 144.</p></li><li><p style="padding-top: 7pt;padding-left: 119pt;text-indent: -11pt;text-align: left;">The Interlisp Programming Environment by Warren Teitelman and Larry Masinter. It appeared in April, 1981, in <i>IEEE Computer</i>, Volume 14:1, Pages 25 - 34.</p></li><li><p style="padding-top: 7pt;padding-left: 118pt;text-indent: -10pt;text-align: left;">Programming In an Interactive Environment, the LISP Experience by Erik</p></li></ul><p style="padding-left: 119pt;text-indent: 0pt;text-align: left;">Sandewall. It appeared in March, 1978, in the <i>ACM Computing Surveys</i>, Volume 10:1, pages 35 - 71.</p><p style="text-indent: 0pt;text-align: left;"><br/></p><p style="padding-left: 107pt;text-indent: 0pt;text-align: left;">Each of these articles was reprinted in the book <i><b>Inter active Prog r amming</b></i></p><p class="s15" style="padding-left: 107pt;text-indent: 0pt;text-align: left;">Environ ments <span class="p">by David R. Barstow, Howard E. Shrobe, and Erik Sandewail. This</span></p><p style="padding-left: 107pt;text-indent: 0pt;text-align: left;">book was published in 1984 by McGraw Hill, NY. The first article can be foun d on pages 19 - 30, the second on pages 83 - 96, and the third on pages 31 - 80.</p><p style="text-indent: 0pt;text-align: left;"><br/></p><p style="padding-left: 35pt;text-indent: 0pt;line-height: 1pt;text-align: left;"><span><img width="665" height="1" alt="image" src="Image_161.png"/></span></p><p class="s6" style="padding-left: 35pt;text-indent: 0pt;text-align: left;">Medley for the Novice, Release 2.0</p><p class="s6" style="padding-top: 2pt;padding-left: 35pt;text-indent: 0pt;text-align: left;">25-1</p></body></html>
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-</style></head><body><div class="title">Headings</div><div class="data"><a target="content" href="content.htm#a0" style="padding-left: 40pt;">Release 2.0</a><a target="content" href="content.htm#bookmark1" style="padding-left: 10pt;">BRIEF GLOSSARY</a><a target="content" href="content.htm#bookmark2" style="padding-left: 10pt;">PREFACE</a><a target="content" href="content.htm#bookmark3" style="padding-left: 10pt;">TYPING SHORTCUTS</a><a target="content" href="content.htm#a1" style="padding-left: 20pt;">Programmer’s Assistant                                                                                  </a><a target="content" href="content.htm#a2" style="padding-left: 20pt;">If You Make a Mistake                                                                                      </a><a target="content" href="content.htm#bookmark4" style="padding-left: 10pt;">TABLE of CONTENTS</a><a target="content" href="content.htm#bookmark5" style="padding-left: 10pt;">USING MENUS</a><a target="content" href="content.htm#a3" style="padding-left: 20pt;">Making a Selection from a Menu                                                                     </a><a target="content" href="content.htm#a4" style="padding-left: 20pt;">Explanation of Menu Items                                                                              </a><a target="content" href="content.htm#a5" style="padding-left: 20pt;">Submenus                                                                                                         </a><a target="content" href="content.htm#a6" style="padding-left: 20pt;">Summary                                                                                                           </a><a target="content" href="content.htm#bookmark6" style="padding-left: 10pt;">HOW TO USE FILES</a><a target="content" href="content.htm#a7" style="padding-left: 20pt;">Types of Files                                                                                                   </a><a target="content" href="content.htm#a8" style="padding-left: 40pt;">If a file contains: Then:</a><a target="content" href="content.htm#a9" style="padding-left: 20pt;">Directories                                                                                                         </a><a target="content" href="content.htm#a10" style="padding-left: 20pt;">Directory Options                                                                                             </a><a target="content" href="content.htm#a11" style="padding-left: 20pt;">Subdirectories                                                                                                  </a><a target="content" href="content.htm#a12" style="padding-left: 20pt;">To See What Files Are Loaded                                                                        </a><a target="content" href="content.htm#a13" style="padding-left: 20pt;">Simple Commands for Manipulating Files                                                     </a><a target="content" href="content.htm#a14" style="padding-left: 20pt;">Connecting to a Directory                                                                               </a><a target="content" href="content.htm#a15" style="padding-left: 20pt;">File Version Numbers                                                                                      </a><a target="content" href="content.htm#bookmark7" style="padding-left: 10pt;">FILEBROWSER</a><a target="content" href="content.htm#a16" style="padding-left: 20pt;">Calling the FileBrowser                                                                                   </a><a target="content" href="content.htm#a17" style="padding-left: 20pt;">FileBrowser Commands                                                                                  </a><a target="content" href="content.htm#bookmark8" style="padding-left: 10pt;">THOSE WONDERFUL WINDOWS!</a><a target="content" href="content.htm#a18" style="padding-left: 20pt;">Windows Provided by Medley                                                                         </a><a target="content" href="content.htm#a19" style="padding-left: 20pt;">Creating a Window                                                                                           </a><a target="content" href="content.htm#a20" style="padding-left: 20pt;">Right Button Default Window Menu                                                               </a><a target="content" href="content.htm#a21" style="padding-left: 20pt;">Explanation of Each Menu Item                                                                      </a><a target="content" href="content.htm#a22" style="padding-left: 20pt;">Scrollable Windows                                                                                         </a><a target="content" href="content.htm#a23" style="padding-left: 20pt;">Other Window Functions                                                                                 </a><a target="content" href="content.htm#a24" style="padding-left: 40pt;">PROMPTPRlNT</a><a target="content" href="content.htm#a25" style="padding-left: 40pt;">(PROMPTPRINT &quot;THIS WILL BE PRINTED IN THE PROMPT WINDOW&quot;)</a><a target="content" href="content.htm#a26" style="padding-left: 40pt;">WHlCHW</a><a target="content" href="content.htm#bookmark9" style="padding-left: 10pt;">EDITING AND SAVING</a><a target="content" href="content.htm#a27" style="padding-left: 20pt;">Defining Functions                                                                                           </a><a target="content" href="content.htm#a28" style="padding-left: 20pt;">Simple Editing in the Executive Window                                                       </a><a target="content" href="content.htm#a29" style="padding-left: 20pt;">Using the List Structure Editor                                                                       </a><a target="content" href="content.htm#a30" style="padding-left: 20pt;">Commenting Functions                                                                                   </a><a target="content" href="content.htm#a31" style="padding-left: 20pt;">File Functions and Variables: How to See and Save Them                          </a><a target="content" href="content.htm#a32" style="padding-left: 20pt;">File Variables                                                                                                    </a><a target="content" href="content.htm#a33" style="padding-left: 20pt;">Saving Interlisp-D on Files                                                                              </a><a target="content" href="content.htm#a34" style="padding-left: 40pt;">(FILES?)</a><a target="content" href="content.htm#a35" style="padding-left: 40pt;">(MAKEFILE ’MY.FILE.NAME)</a><a target="content" href="content.htm#bookmark10" style="padding-left: 10pt;">YOUR INIT FILE</a><a target="content" href="content.htm#a36" style="padding-left: 20pt;">Using the USERGREETFILES Variable                                                          </a><a target="content" href="content.htm#a37" style="padding-left: 20pt;">Making an Init File                                                                                            </a><a target="content" href="content.htm#bookmark11" style="padding-left: 10pt;">MEDLEY FORGIVENESS: DWIM</a><a target="content" href="content.htm#bookmark12" style="padding-left: 10pt;">BREAKPACKAGE</a><a target="content" href="content.htm#a38" style="padding-left: 20pt;">Break Windows                                                                                                 </a><a target="content" href="content.htm#a39" style="padding-left: 20pt;">Break Package Example                                                                                  </a><a target="content" href="content.htm#a40" style="padding-left: 20pt;">Ways to Stop Execution from the Keyboard (Breaking Lisp)                      </a><a target="content" href="content.htm#a41" style="padding-left: 20pt;">Break Menu                                                                                                       </a><a target="content" href="content.htm#a42" style="padding-left: 20pt;">Returning to Top Level                                                                                    </a><a target="content" href="content.htm#bookmark13" style="padding-left: 10pt;">WHAT TO DO IF ...</a><a target="content" href="content.htm#a43" style="padding-left: 40pt;">Executive Window turns black</a><a target="content" href="content.htm#a44" style="padding-left: 40pt;">You closed the Executive Window</a><a target="content" href="content.htm#a45" style="padding-left: 40pt;">Mouse disappears</a><a target="content" href="content.htm#a46" style="padding-left: 40pt;">Second window appears</a><a target="content" href="content.htm#a47" style="padding-left: 40pt;">You keep getting beeped at</a><a target="content" href="content.htm#a48" style="padding-left: 40pt;">You cannot delete the first letter</a><a target="content" href="content.htm#a49" style="padding-left: 40pt;">Your function is just sitting there</a><a target="content" href="content.htm#a50" style="padding-left: 40pt;">A Break Window appears</a><a target="content" href="content.htm#a51" style="padding-left: 40pt;">You have run out of space</a><a target="content" href="content.htm#a52" style="padding-left: 40pt;">(GAINSPACE)</a><a target="content" href="content.htm#a53" style="padding-left: 40pt;">A redefined message appears</a><a target="content" href="content.htm#a54" style="padding-left: 40pt;">UNBOUND ATOM</a><a target="content" href="content.htm#a55" style="padding-left: 40pt;">UNDEFINED CAR OF FORM</a><a target="content" href="content.htm#a56" style="padding-left: 40pt;">You have traced APPLY</a><a target="content" href="content.htm#bookmark14" style="padding-left: 10pt;">WINDOWS AND REGIONS</a><a target="content" href="content.htm#a57" style="padding-left: 20pt;">Windows                                                                                                            </a><a target="content" href="content.htm#a58" style="padding-left: 30pt;">CREATEW</a><a target="content" href="content.htm#a59" style="padding-left: 30pt;">WlNDOWPROP</a><a target="content" href="content.htm#a60" style="padding-left: 30pt;">Getting Windows to Do Things</a><a target="content" href="content.htm#a61" style="padding-left: 30pt;">BUTTONEVENTFN</a><a target="content" href="content.htm#a62" style="padding-left: 30pt;">Looking at a Window’s Properties</a><a target="content" href="content.htm#a63" style="padding-left: 20pt;">Regions                                                                                                             </a><a target="content" href="content.htm#bookmark15" style="padding-left: 10pt;">WHAT ARE MENUS?</a><a target="content" href="content.htm#a64" style="padding-left: 20pt;">Displaying Menus                                                                                             </a><a target="content" href="content.htm#a65" style="padding-left: 20pt;">Getting Menus to Do Stuff                                                                               </a><a target="content" href="content.htm#a66" style="padding-left: 20pt;">WHENHELDFN and WHENSELECTEDFN Fields of a Menu                         </a><a target="content" href="content.htm#a67" style="padding-left: 20pt;">Looking at a Menu’s Fields                                                                             </a><a target="content" href="content.htm#bookmark16" style="padding-left: 10pt;">BITMAPS</a><a target="content" href="content.htm#bookmark17" style="padding-left: 10pt;">DISPLAYSTREAMS</a><a target="content" href="content.htm#a68" style="padding-left: 20pt;">Drawing on a Displaystream                                                                           </a><a target="content" href="content.htm#a69" style="padding-left: 40pt;">DRAWLlNE</a><a target="content" href="content.htm#a70" style="padding-left: 40pt;">DRAWTO</a><a target="content" href="content.htm#a71" style="padding-left: 40pt;">DRAWClRCLE</a><a target="content" href="content.htm#a72" style="padding-left: 40pt;">FlLLClRCLE</a><a target="content" href="content.htm#a73" style="padding-left: 20pt;">Locating and Changing Your Position in a Displaystream                          </a><a target="content" href="content.htm#a74" style="padding-left: 40pt;">DSPXPOSlTlON</a><a target="content" href="content.htm#a75" style="padding-left: 40pt;">DSPYPOSlTlON</a><a target="content" href="content.htm#a76" style="padding-left: 40pt;">MOVETO</a><a target="content" href="content.htm#bookmark18" style="padding-left: 10pt;">FONTS</a><a target="content" href="content.htm#a77" style="padding-left: 20pt;">What Makes Up a Font                                                                                     </a><a target="content" href="content.htm#a78" style="padding-left: 20pt;">Fontdescriptors and FONTCREATE                                                               </a><a target="content" href="content.htm#a79" style="padding-left: 20pt;">Display Fonts                                                                                                    </a><a target="content" href="content.htm#a80" style="padding-left: 20pt;">InterPress Fonts                                                                                               </a><a target="content" href="content.htm#a81" style="padding-left: 20pt;">Functions for Using Fonts                                                                               </a><a target="content" href="content.htm#a82" style="padding-left: 30pt;">FONTPR0P Looking at Font Properties</a><a target="content" href="content.htm#a83" style="padding-left: 30pt;">STRlNGWlDTH</a><a target="content" href="content.htm#a84" style="padding-left: 30pt;">DSPFONT - Changing the Font in One Window</a><a target="content" href="content.htm#a85" style="padding-left: 30pt;">Personalizing Your Font Profile</a><a target="content" href="content.htm#bookmark19" style="padding-left: 10pt;">THE INSPECTOR</a><a target="content" href="content.htm#a86" style="padding-left: 20pt;">Calling the Inspector                                                                                        </a><a target="content" href="content.htm#a87" style="padding-left: 20pt;">Using the Inspector                                                                                          </a><a target="content" href="content.htm#a88" style="padding-left: 20pt;">Inspector Example                                                                                           </a><a target="content" href="content.htm#bookmark20" style="padding-left: 10pt;">MASTERSCOPE</a><a target="content" href="content.htm#a89" style="padding-left: 20pt;">SHOW DATA Command and GRAPHER                                                        </a><a target="content" href="content.htm#bookmark21" style="padding-left: 10pt;">WHERE DOES ALL THE TIME GO? SPY</a><a target="content" href="content.htm#a90" style="padding-left: 20pt;">How to Use Spy with the SPY Window                                                           </a><a target="content" href="content.htm#a91" style="padding-left: 20pt;">How to Use SPY from the Lisp Top Level                                                      </a><a target="content" href="content.htm#a92" style="padding-left: 20pt;">Interpreting SPY’s Results                                                                              </a><a target="content" href="content.htm#bookmark22" style="padding-left: 10pt;">FREE MENUS</a><a target="content" href="content.htm#a93" style="padding-left: 20pt;">Free Menu Example                                                                                          </a><a target="content" href="content.htm#a94" style="padding-left: 20pt;">Parts of a Free Menu Item                                                                                </a><a target="content" href="content.htm#a95" style="padding-left: 20pt;">Types of Free Menu Items                                                                               </a><a target="content" href="content.htm#bookmark23" style="padding-left: 10pt;">THE GRAPHER</a><a target="content" href="content.htm#a96" style="padding-left: 20pt;">Say it with Graphs                                                                                            </a><a target="content" href="content.htm#a97" style="padding-left: 30pt;">Add a Node</a><a target="content" href="content.htm#a98" style="padding-left: 30pt;">Add a Link</a><a target="content" href="content.htm#a99" style="padding-left: 30pt;">Delete a Link</a><a target="content" href="content.htm#a100" style="padding-left: 30pt;">Delete a Node</a><a target="content" href="content.htm#a101" style="padding-left: 30pt;">Move a Node</a><a target="content" href="content.htm#a102" style="padding-left: 20pt;">Making a Graph from a List                                                                             </a><a target="content" href="content.htm#a103" style="padding-left: 20pt;">Incorporating Grapher into Your Program                                                     </a><a target="content" href="content.htm#a104" style="padding-left: 20pt;">More of Grapher                                                                                               </a><a target="content" href="content.htm#bookmark24" style="padding-left: 10pt;">RESOURCE MANAGEMENT</a><a target="content" href="content.htm#a105" style="padding-left: 20pt;">Naming Variables and Records                                                                      </a><a target="content" href="content.htm#a106" style="padding-left: 20pt;">Some Space and Time Considerations                                                          </a><a target="content" href="content.htm#a107" style="padding-left: 30pt;">Global Variables</a><a target="content" href="content.htm#a108" style="padding-left: 30pt;">Circular Lists</a><a target="content" href="content.htm#a109" style="padding-left: 30pt;">When You Run Out of Space</a><a target="content" href="content.htm#bookmark25" style="padding-left: 10pt;">SIMPLE INTERACTIONS WITH THE CURSOR, A BITMAP, AND A WINDOW</a><a target="content" href="content.htm#a110" style="padding-left: 20pt;">GETMOUSESTATE Example Function                                                           </a><a target="content" href="content.htm#a111" style="padding-left: 20pt;">Advising GETMOUSESTATE                                                                           </a><a target="content" href="content.htm#a112" style="padding-left: 20pt;">Changing the Cursor                                                                                        </a><a target="content" href="content.htm#a113" style="padding-left: 20pt;">Functions for Tracing the Cursor                                                                   </a><a target="content" href="content.htm#a114" style="padding-left: 20pt;">Running the Functions                                                                                    </a><a target="content" href="content.htm#bookmark26" style="padding-left: 10pt;">GLOSSARY OF GLOBAL SYSTEM VARIABLES</a><a target="content" href="content.htm#a115" style="padding-left: 20pt;">Directories                                                                                                         </a><a target="content" href="content.htm#a116" style="padding-left: 20pt;">Flags                                                                                                                  </a><a target="content" href="content.htm#a117" style="padding-left: 20pt;">History Lists                                                                                                      </a><a target="content" href="content.htm#a118" style="padding-left: 20pt;">System Menus                                                                                                  </a><a target="content" href="content.htm#a119" style="padding-left: 20pt;">Windows                                                                                                            </a><a target="content" href="content.htm#a120" style="padding-left: 20pt;">Miscellaneous                                                                                                   </a><a target="content" href="content.htm#bookmark27" style="padding-left: 10pt;">OTHER USEFUL REFERENCES</a></div></body></html>
diff --git a/docs/html-primer/Medley-Primer.html b/docs/html-primer/Medley-Primer.html
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--- a/docs/html-primer/Medley-Primer.html
+++ /dev/null
@@ -1,2 +0,0 @@
-<!DOCTYPE  html PUBLIC "-//W3C//DTD XHTML 1.0 Transitional//EN" "http://www.w3.org/TR/xhtml1/DTD/xhtml1-transitional.dtd">
-<html xmlns="http://www.w3.org/1999/xhtml"><head><meta http-equiv="Content-Type" content="text/html; charset=utf-8"/><title>Medley-Primer</title><link href="Medley-Primer_files/navigation.css" rel="stylesheet" type="text/css"/><link href="Medley-Primer_files/document.css" rel="stylesheet" type="text/css"/></head><body><p class="top_nav"><a href="Medley-Primer_files/part1.htm">Next &gt;</a></p><p style="padding-left: 47pt;text-indent: 0pt;text-align: left;"><span><img width="137" height="18" alt="image" src="Medley-Primer_files/Image_001.png"/></span></p><p class="toc">&nbsp;</p><div class="toc"><a class="toc0" href="Medley-Primer_files/part1.htm">001-TITLEPAGE</a><a class="toc0" href="Medley-Primer_files/part2.htm">01-GLOSSARY</a><a class="toc0" href="Medley-Primer_files/part3.htm">002-PREFACE</a><a class="toc0" href="Medley-Primer_files/part4.htm">02-TYPING-SHORTCUTS</a><a class="toc0" href="Medley-Primer_files/part5.htm">003-TOC</a><a class="toc0" href="Medley-Primer_files/part6.htm">03-USING-MENUS</a><a class="toc0" href="Medley-Primer_files/part7.htm">04-USING-FILES</a><a class="toc0" href="Medley-Primer_files/part8.htm">05-FILEBROWSER</a><a class="toc0" href="Medley-Primer_files/part9.htm">06-WINDOWS</a><a class="toc0" href="Medley-Primer_files/part10.htm">07-EDITING-AND-SAVING</a><a class="toc0" href="Medley-Primer_files/part11.htm">08-YOUR-INIT</a><a class="toc0" href="Medley-Primer_files/part12.htm">09-FLEXIBILITY</a><a class="toc0" href="Medley-Primer_files/part13.htm">10-BREAK-MENU</a><a class="toc0" href="Medley-Primer_files/part14.htm">11-WHAT-TO-DO</a><a class="toc0" href="Medley-Primer_files/part15.htm">12-WINDOWS</a><a class="toc0" href="Medley-Primer_files/part16.htm">13-WHAT-ARE-MENUS</a><a class="toc0" href="Medley-Primer_files/part17.htm">14-BITMAPS</a><a class="toc0" href="Medley-Primer_files/part18.htm">15-DISPLAYSTREAMS</a><a class="toc0" href="Medley-Primer_files/part19.htm">16-FONTS</a><a class="toc0" href="Medley-Primer_files/part20.htm">17-INSPECTOR</a><a class="toc0" href="Medley-Primer_files/part21.htm">18-MASTERSCOPE</a><a class="toc0" href="Medley-Primer_files/part22.htm">19-SPY</a><a class="toc0" href="Medley-Primer_files/part23.htm">20-FREE-MENUS</a><a class="toc0" href="Medley-Primer_files/part24.htm">21-GRAPHER</a><a class="toc0" href="Medley-Primer_files/part25.htm">22-RESOURCE-MANAGEMENT</a><a class="toc0" href="Medley-Primer_files/part26.htm">23-INTERACTIONS</a><a class="toc0" href="Medley-Primer_files/part27.htm">24-GLOBAL-VARIABLES</a><a class="toc0" href="Medley-Primer_files/part28.htm">25-REFERENCES</a></div><p class="nav">&nbsp;&nbsp;</p><p class="nav">&nbsp;</p><p class="nav"><a href="Medley-Primer_files/part1.htm">Next &gt;</a></p><p class="nav">&nbsp;&nbsp;</p></body></html>
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diff --git a/docs/html-primer/Medley-Primer_files/part1.htm b/docs/html-primer/Medley-Primer_files/part1.htm
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--- a/docs/html-primer/Medley-Primer_files/part1.htm
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-<!DOCTYPE  html PUBLIC "-//W3C//DTD XHTML 1.0 Transitional//EN" "http://www.w3.org/TR/xhtml1/DTD/xhtml1-transitional.dtd">
-<html xmlns="http://www.w3.org/1999/xhtml"><head><meta http-equiv="Content-Type" content="text/html; charset=utf-8"/><title>001-TITLEPAGE</title><link href="navigation.css" rel="stylesheet" type="text/css"/><link href="document.css" rel="stylesheet" type="text/css"/></head><body><p class="top_nav"><a href="../Medley-Primer.html">&lt; Previous</a><span> | </span><a href="../Medley-Primer.html">Contents</a><span> | </span><a href="part2.htm">Next &gt;</a></p><p class="s1" style="padding-bottom: 3pt;padding-left: 44pt;text-indent: 0pt;line-height: 27pt;text-align: left;"><a name="bookmark0">Venue Medley for the Novice</a></p><p style="padding-left: 5pt;text-indent: 0pt;text-align: left;"><span><img width="137" height="18" alt="image" src="Image_002.png"/></span></p><p style="text-indent: 0pt;text-align: left;"><br/></p><h4 style="padding-top: 18pt;padding-left: 239pt;text-indent: 0pt;line-height: 11pt;text-align: left;">Release 2.0</h4><h4 style="padding-left: 239pt;text-indent: 0pt;line-height: 11pt;text-align: left;">February, 1992</h4><p style="text-indent: 0pt;text-align: left;"><br/></p><p style="padding-left: 35pt;text-indent: 0pt;line-height: 1pt;text-align: left;"><span><img width="665" height="1" alt="image" src="Image_003.png"/></span></p><p style="text-indent: 0pt;text-align: left;"><br/></p><p style="padding-top: 4pt;padding-left: 53pt;text-indent: 0pt;line-height: 11pt;text-align: left;">Address comments to:</p><p style="padding-left: 53pt;text-indent: 0pt;line-height: 11pt;text-align: left;">Venue</p><p style="padding-left: 53pt;text-indent: 0pt;text-align: left;">User Documentation 1549 Industrial Road</p><p style="padding-bottom: 1pt;padding-left: 53pt;text-indent: 0pt;text-align: left;">San Carlos, CA 94070 415-508-9672</p><p style="padding-left: 53pt;text-indent: 0pt;line-height: 2pt;text-align: left;"><span><img width="412" height="3" alt="image" src="Image_004.png"/></span></p><p style="padding-top: 8pt;padding-left: 53pt;text-indent: 0pt;line-height: 174%;text-align: left;">Medley for the Novice Release 2.0</p><p style="padding-left: 53pt;text-indent: 0pt;line-height: 12pt;text-align: left;">February 1992</p><p style="padding-top: 8pt;padding-left: 53pt;text-indent: 0pt;line-height: 169%;text-align: left;">Copyright <span class="s2"></span> 1992 by Venue. All rights reserved.</p><p style="padding-left: 53pt;text-indent: 0pt;text-align: left;">Medley is a trademark of Venue.</p><p style="padding-top: 9pt;padding-left: 53pt;text-indent: 0pt;line-height: 87%;text-align: left;">Xerox<span class="s2"></span> is a registered trademark and InterPress is a trademark of Xerox Corporation.</p><p style="padding-top: 8pt;padding-left: 53pt;text-indent: 0pt;line-height: 169%;text-align: left;">UNIX<span class="s2"></span> is a registered trademark of UNIX System Laboratories. Post Script is a registered trademark of Adobe Systems Inc.</p><p style="padding-left: 53pt;text-indent: 0pt;line-height: 11pt;text-align: left;">Copyright protection includes material generated from the</p><p style="padding-left: 53pt;text-indent: 0pt;line-height: 87%;text-align: left;">software programs displayed on the screen, such as icons, screen display looks, and the like.</p><p style="text-indent: 0pt;text-align: left;"><br/></p><p style="padding-left: 53pt;text-indent: 0pt;line-height: 2pt;text-align: left;"><span><img width="414" height="3" alt="image" src="Image_005.png"/></span></p><p style="padding-top: 9pt;padding-left: 53pt;text-indent: 0pt;line-height: 87%;text-align: left;">The information in this document is subject to change without notice and should not be construed as a commitment by Venue. While every effort has been made to ensure the accuracy of this document, Venue assumes no responsibility for any errors that may appear.</p><p style="text-indent: 0pt;text-align: left;"><br/></p><p style="padding-left: 53pt;text-indent: 0pt;line-height: 87%;text-align: left;">Text was written and produced with Venue text formatting tools; Xerox printers were used to produce text masters. The typeface is Classic.</p><p class="nav">&nbsp;&nbsp;</p><p class="nav">&nbsp;</p><p class="nav"><a href="../Medley-Primer.html">&lt; Previous</a><span> | </span><a href="../Medley-Primer.html">Contents</a><span> | </span><a href="part2.htm">Next &gt;</a></p><p class="nav">&nbsp;&nbsp;</p></body></html>
diff --git a/docs/html-primer/Medley-Primer_files/part10.htm b/docs/html-primer/Medley-Primer_files/part10.htm
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-<!DOCTYPE  html PUBLIC "-//W3C//DTD XHTML 1.0 Transitional//EN" "http://www.w3.org/TR/xhtml1/DTD/xhtml1-transitional.dtd">
-<html xmlns="http://www.w3.org/1999/xhtml"><head><meta http-equiv="Content-Type" content="text/html; charset=utf-8"/><title>07-EDITING-AND-SAVING</title><link href="navigation.css" rel="stylesheet" type="text/css"/><link href="document.css" rel="stylesheet" type="text/css"/></head><body><p class="top_nav"><a href="part9.htm">&lt; Previous</a><span> | </span><a href="../Medley-Primer.html">Contents</a><span> | </span><a href="part11.htm">Next &gt;</a></p><h1 style="padding-top: 3pt;padding-left: 35pt;text-indent: 0pt;text-align: left;"><a name="bookmark9">7. EDITING AND SAVING</a></h1><p style="padding-left: 35pt;text-indent: 0pt;line-height: 6pt;text-align: left;"><span><img width="640" height="8" alt="image" src="Image_056.png"/></span></p><p style="text-indent: 0pt;text-align: left;"><br/></p><p style="padding-top: 15pt;padding-left: 107pt;text-indent: 0pt;text-align: left;">This chapter explains how to define functions, how to edit them, and how to save your work.</p><p style="text-indent: 0pt;text-align: left;"><br/></p><h2 style="padding-left: 35pt;text-indent: 0pt;text-align: left;">Defining Functions                                                                                           </h2><p style="text-indent: 0pt;text-align: left;"><br/></p><p class="s3" style="padding-top: 4pt;padding-left: 107pt;text-indent: 0pt;text-align: justify;">DEFUN <span class="p">can be used to define new functions. The syntax for it is:</span></p><p class="s3" style="padding-top: 7pt;padding-left: 143pt;text-indent: 0pt;text-align: left;">(DEFUN (&lt;functionname&gt; (&lt;parameter-list&gt;&lt;body-of-function&gt;))</p><p style="padding-top: 7pt;padding-left: 107pt;text-indent: 0pt;line-height: 106%;text-align: justify;">New functions can be created with <span class="s3">DEFUN </span>by typing directly into the Executive Window. Once defined, a function is a part of the Medley environment. For example, the function <span class="s3">EXAMPLE-ADDER </span>is defined in Figure 7-1.</p><p style="text-indent: 0pt;text-align: left;"><br/></p><p style="padding-left: 160pt;text-indent: 0pt;text-align: left;"><span><img width="397" height="126" alt="image" src="Image_057.gif"/></span></p><p style="text-indent: 0pt;text-align: left;"><br/></p><p style="padding-top: 4pt;padding-left: 193pt;text-indent: 0pt;text-align: left;">Figure 7-1. Defining the Function <span class="s3">EXAMPLE-ADDER</span></p><p style="text-indent: 0pt;text-align: left;"><br/></p><p style="padding-left: 107pt;text-indent: 0pt;text-align: left;">Now that the function is defined, it can be called from the Executive Window:</p><p style="text-indent: 0pt;text-align: left;"><br/></p><p style="padding-left: 162pt;text-indent: 0pt;text-align: left;"><span><img width="397" height="126" alt="image" src="Image_058.gif"/></span></p><p style="text-indent: 0pt;text-align: left;"><br/></p><p style="padding-top: 4pt;padding-left: 107pt;text-indent: 55pt;line-height: 164%;text-align: left;">Figure 7-2.. After <span class="s3">EXAMPLE-ADDER </span>is defined, it can he executed The function returns 6, after printing out the message.</p><p style="padding-left: 107pt;text-indent: 0pt;text-align: left;">Functions can also be defined using the editor DEdit described above. To do this, simply type</p><p class="s3" style="padding-top: 7pt;padding-left: 142pt;text-indent: 0pt;text-align: left;"><span class="p">(</span>ED <span class="s4">function-name ’</span>FUNCTIONS<span class="p">)</span></p><p style="padding-top: 7pt;padding-left: 107pt;text-indent: 0pt;text-align: left;">You will be told that no definition exists for the function, and a menu will pop up asking you what type of function you would like to create:</p><p style="text-indent: 0pt;text-align: left;"><br/></p><p style="padding-left: 163pt;text-indent: 0pt;text-align: left;"><span><img width="394" height="164" alt="image" src="Image_059.gif"/></span></p><p style="text-indent: 0pt;text-align: left;"><br/></p><p style="padding-top: 4pt;padding-left: 215pt;text-indent: 0pt;text-align: left;">Figure 7-3 Selecting a Function Template</p><p style="padding-top: 7pt;padding-left: 107pt;text-indent: 0pt;text-align: left;">Selecting the appropriate type will pop up an editor window with a function template. The use of the editor is explained in the Using the List Structure Editor section below.</p><p style="text-indent: 0pt;text-align: left;"><br/></p><h2 style="padding-left: 35pt;text-indent: 0pt;text-align: left;">Simple Editing in the Executive Window                                                       </h2><p style="padding-top: 9pt;padding-left: 107pt;text-indent: 0pt;text-align: left;">First, type in an example function to edit:</p><p style="text-indent: 0pt;text-align: left;"><br/></p><p class="s3" style="padding-left: 197pt;text-indent: -54pt;line-height: 88%;text-align: left;">3/41&gt; (defun your-first-function (a b) (if (&gt; a b)</p><p class="s3" style="padding-left: 227pt;text-indent: 0pt;line-height: 88%;text-align: left;">’(the first is greater) ’(the second is greater)))</p><p style="padding-top: 6pt;padding-left: 107pt;text-indent: 0pt;text-align: left;">To run the function, type:</p><p class="s3" style="padding-top: 8pt;padding-left: 143pt;text-indent: 0pt;line-height: 88%;text-align: left;">3/42&gt; (YOUR-FIRST-FUNCTION 3 5) (THE SECOND IS GREATER)</p><p style="padding-top: 6pt;padding-left: 107pt;text-indent: 0pt;text-align: left;">Now, let’s alter this. Type:</p><p class="s3" style="padding-top: 7pt;padding-left: 143pt;text-indent: 0pt;text-align: left;">3/43&gt; FIX 41</p><p style="padding-top: 5pt;padding-left: 107pt;text-indent: 0pt;text-align: left;">Note that your original function is redisplayed, and ready to edit. (See Figure 7-4.)</p><p style="text-indent: 0pt;text-align: left;"><br/></p><p style="padding-left: 166pt;text-indent: 0pt;text-align: left;"><span><img width="386" height="93" alt="image" src="Image_060.gif"/></span></p><p style="text-indent: 0pt;text-align: left;"><br/></p><p style="padding-top: 4pt;padding-left: 215pt;text-indent: 0pt;text-align: left;">Figure 7-4. Using FIX to Edit a Fundion</p><p style="text-indent: 0pt;text-align: left;"><br/></p><p class="s10" style="padding-left: 107pt;text-indent: 0pt;text-align: left;">Move <span class="p">the text cursor to the appropriate place in the function by positioning the mouse cursor and pressing the left mouse button.</span></p><p class="s10" style="padding-top: 7pt;padding-left: 107pt;text-indent: 0pt;text-align: left;">Delete <span class="p">text by moving the caret to the beginning of the section to be deleted. Hold the right mouse button down and move the mouse cursor over the text. All of the</span></p><p style="padding-left: 107pt;text-indent: 0pt;text-align: left;">highlighted text between the caret and mouse cursor is deleted when you release the right mouse button.</p><p class="s10" style="padding-top: 7pt;padding-left: 107pt;text-indent: 0pt;text-align: left;">If you make a mistake, <span class="p">deletions can be undone. Press the UNDO key on the keypad to the left of the keyboard.</span></p><p style="padding-top: 7pt;padding-left: 107pt;text-indent: 0pt;text-align: left;">Now change <span class="s3">GREATER </span>to <span class="s3">BIGGER</span>:</p><p style="text-indent: 0pt;text-align: left;"><br/></p><p style="padding-top: 4pt;padding-left: 125pt;text-indent: -18pt;line-height: 107%;text-align: left;">1. Position the mouse cursor on the <span class="s3">G </span>of <span class="s3">GREATER </span>, and click the left mouse button. The text cursor is now where the mouse cursor is.</p><p style="padding-top: 6pt;padding-left: 125pt;text-indent: -18pt;text-align: left;">2. Next, press the right mouse button and hold it down. Notice that if you move the mouse cursor around, it will blacken the characters from the text cursor to the mouse cursor. Move the mouse so that the word &quot;<span class="s3">GREATER </span>&quot; is highlighted.</p><p style="padding-top: 7pt;padding-left: 107pt;text-indent: 0pt;text-align: left;">3. Release the right mouse button and <span class="s3">GREATER </span>is deleted.</p><p style="padding-top: 7pt;padding-left: 107pt;text-indent: 0pt;text-align: left;">4. Without moving the cursor, type in <span class="s3">BIGGER </span>.</p><p style="padding-top: 7pt;padding-left: 125pt;text-indent: -18pt;text-align: left;">5. There are two ways to end the editing session and run the function. One is to type Control-<span class="s9">X</span>. (Hold the Control key down, and type <span class="s9">X</span>.) Another is to move the text</p><p style="padding-left: 124pt;text-indent: 0pt;text-align: left;">cursor to the end of the line and crø In both cases, the function has been edited!</p><p style="padding-top: 7pt;padding-left: 107pt;text-indent: 0pt;text-align: left;">Try the new version of the function by typing:</p><p class="s3" style="padding-top: 8pt;padding-left: 142pt;text-indent: 0pt;line-height: 88%;text-align: left;">3/48&gt; (YOUR-FIRST-FUNCTION 8 9) (THE SECOND IS BIGGER)</p><p style="padding-top: 6pt;padding-left: 107pt;text-indent: 0pt;text-align: left;">and get the new result, or you can type:</p><p class="s3" style="padding-top: 7pt;padding-left: 142pt;text-indent: 0pt;line-height: 11pt;text-align: left;">3/49&gt; REDO 42</p><p class="s3" style="padding-left: 142pt;text-indent: 0pt;line-height: 11pt;text-align: left;">(THE SECOND IS BIGGER)</p><p style="text-indent: 0pt;text-align: left;"><br/></p><h2 style="padding-left: 35pt;text-indent: 0pt;text-align: left;">Using the List Structure Editor                                                                       </h2><p style="text-indent: 0pt;text-align: left;"><br/></p><p style="padding-top: 4pt;padding-left: 107pt;text-indent: 0pt;text-align: left;">If the function you want to edit is not readily available (i.e. the function is not in the</p><p style="padding-left: 107pt;text-indent: 0pt;text-align: left;">Executive Window, and you can’t remember the history list number, or you simply have a lot of editing), use the List Structure Editor, often called SEdit. This editor is evoked with a call to <span class="s3">ED</span>:</p><p class="s3" style="padding-top: 6pt;padding-left: 17pt;text-indent: 0pt;text-align: center;">81<span class="s2"></span><span class="p">(</span>ED ’YOUR-FIRST-FUNCTION ’FUNCTIONS)</p><p style="text-indent: 0pt;text-align: left;"><br/></p><p style="padding-left: 107pt;text-indent: 0pt;text-align: left;">Your function will be displayed in an edit window, as in Figure 7-5.</p><p style="padding-top: 7pt;padding-left: 107pt;text-indent: 0pt;text-align: left;">If there is no edit window on the screen, you will be prompted to create a window. As</p><p style="padding-left: 107pt;text-indent: 0pt;text-align: left;">before, hold the leff mouse button down, move the mouse until it form s a rectangle of an acceptable size and shape, then release the button. Your function definition will</p><p style="padding-left: 107pt;text-indent: 0pt;text-align: left;">automatically appear in this edit window.</p><p style="text-indent: 0pt;text-align: left;"><br/></p><p style="text-indent: 0pt;text-align: left;"><br/></p><p style="padding-left: 184pt;text-indent: 0pt;text-align: left;"><span><img width="336" height="131" alt="image" src="Image_061.gif"/></span></p><p style="text-indent: 0pt;text-align: left;"><br/></p><p style="padding-top: 4pt;padding-left: 246pt;text-indent: 0pt;text-align: left;">Figure 7-5. An Edit Window</p><p style="text-indent: 0pt;text-align: left;"><br/></p><p style="padding-left: 107pt;text-indent: 0pt;text-align: left;">Many changes are easily done with the structure editor. Notice that by pressing the left mouse button you can place the caret in position, and by pressing the middle mouse</p><p style="padding-left: 107pt;text-indent: 0pt;text-align: left;">button you can select atoms or s-expressions. Repeated pressing of the middle button selects bigger pieces of text.</p><p style="text-indent: 0pt;text-align: left;"><br/></p><p style="padding-top: 4pt;padding-left: 107pt;text-indent: 0pt;text-align: left;">To add an expression that does not appear in the edit window (i.e., it cannot simply be underlined), place the caret at the insertion point and type it in.. For example, to</p><p style="padding-left: 107pt;text-indent: 0pt;line-height: 107%;text-align: left;">replace the first <span class="s3">GREATER </span>with <span class="s3">LARGER</span>, place the caret to the left of <span class="s3">GREATER </span>, as shown in Figure 7-6.</p><p style="text-indent: 0pt;text-align: left;"><br/></p><p style="padding-left: 184pt;text-indent: 0pt;text-align: left;"><span><img width="336" height="131" alt="image" src="Image_062.gif"/></span></p><p style="text-indent: 0pt;text-align: left;"><br/></p><p style="padding-left: 111pt;text-indent: 0pt;text-align: center;">Figure 7-6. Caret Placement Prior  to Changing <span class="s3">GREATER </span>with <span class="s3">LARGER</span></p><p style="padding-top: 7pt;padding-left: 107pt;text-indent: 0pt;line-height: 107%;text-align: left;">Now press the DELETE key seven times, and type in <span class="s3">LARGER </span>. The window now looks like this:</p><p style="text-indent: 0pt;text-align: left;"><br/></p><p style="padding-left: 184pt;text-indent: 0pt;text-align: left;"><span><img width="336" height="131" alt="image" src="Image_063.gif"/></span></p><p style="padding-top: 9pt;padding-left: 111pt;text-indent: 0pt;text-align: center;">Figure 7-7. <span class="s3">GREATER </span>Changed to <span class="s3">LARGER</span></p><p style="padding-top: 7pt;padding-left: 107pt;text-indent: 0pt;text-align: left;">Notice the asterisk in the left edge of the title bar of the window. This designates that the function has be changed. Now exit the edit session by typing Control-X, and the function will be redifined.</p><p style="text-indent: 0pt;text-align: left;"><br/></p><h2 style="padding-left: 35pt;text-indent: 0pt;text-align: left;">Commenting Functions                                                                                   </h2><p style="text-indent: 0pt;text-align: left;"><br/></p><p style="padding-top: 4pt;padding-left: 107pt;text-indent: 0pt;text-align: left;">Text can be marked as a comment by typing a semi-colon before the text of the comment.</p><p class="s3" style="padding-top: 6pt;padding-left: 143pt;text-indent: 0pt;text-align: left;">; This is the form of a comment</p><p style="padding-top: 7pt;padding-left: 107pt;text-indent: 0pt;text-align: left;">Inside an editor window, the comment will be printed in a different font and may be moved to the far right of the code. SEdit is familiar with the Common Lisp convention of single comments being on the far right, double comments being justified with the</p><p style="padding-left: 107pt;text-indent: 0pt;text-align: left;">function level, and triple comments being on the far left, as is shown in Figure 7-8.</p><p style="text-indent: 0pt;text-align: left;"><br/></p><p style="padding-left: 192pt;text-indent: 0pt;text-align: left;"><span><img width="317" height="146" alt="image" src="Image_064.gif"/></span></p><p style="text-indent: 0pt;text-align: left;"><br/></p><p style="padding-top: 4pt;padding-left: 228pt;text-indent: 0pt;text-align: left;">Figure 7-8. Placement of Comments</p><p style="padding-top: 7pt;padding-left: 107pt;text-indent: 0pt;text-align: justify;">There are other editor commands which can be very useful. To learn about them, read Appendix B of the <i>Release Notes</i>.</p><p style="text-indent: 0pt;text-align: left;"><br/></p><h2 style="padding-left: 35pt;text-indent: 0pt;text-align: left;">File Functions and Variables: How to See and Save Them                          </h2><p style="padding-top: 9pt;padding-left: 107pt;text-indent: 0pt;text-align: justify;">With Medley, all work is done inside the Lisp environment. There is no operating system or command level other than the Executive Window. All functions and data</p><p style="padding-left: 107pt;text-indent: 0pt;text-align: justify;">structures are defined and edited using normal Lisp commands. This sertion describes tools in the Medley environment that will keep track of any changes that you make in the environment that you have not yet saved on files, such as defining new functions,</p><p style="padding-left: 107pt;text-indent: 0pt;text-align: justify;">changing the values of variables, or adding new variables. And it then has you save the changes in a file you specify. All of these functions are in the <span class="s3">INTERLISP </span>(<span class="s3">IL:</span>) package.</p><p style="text-indent: 0pt;text-align: left;"><br/></p><h2 style="padding-left: 35pt;text-indent: 0pt;text-align: left;">File Variables                                                                                                    </h2><p style="text-indent: 0pt;text-align: left;"><br/></p><p style="padding-top: 4pt;padding-left: 107pt;text-indent: 0pt;text-align: left;">Certain system-defined global variables are used by the file package to keep track of the environment as it stands. You can get system information by checking the values of</p><p style="padding-left: 107pt;text-indent: 0pt;text-align: left;">these variables. Two important variables follow.</p><p style="padding-top: 7pt;padding-left: 119pt;text-indent: -11pt;line-height: 107%;text-align: left;">• <span class="s3">FILELST </span>evaluates to a list, all files that yoU have loaded into the Medley environment.</p><p style="padding-top: 6pt;padding-left: 119pt;text-indent: -10pt;line-height: 106%;text-align: left;">• <i>filename</i><span class="s3">COMS </span>(Each file loaded into the Lisp environment has associated with it a global variable, whose name is formed by appending <span class="s3">COMS </span>to the end of the filename.) This variable evaluates to a list of all the functions, variables, bitmaps, windows, and soon, that are stored on that particular file.</p><p style="padding-top: 7pt;padding-left: 119pt;text-indent: 0pt;text-align: left;">For example, if you type:</p><p class="s3" style="padding-top: 7pt;padding-left: 143pt;text-indent: 0pt;text-align: left;">MYFILECOMS</p><p style="padding-top: 7pt;padding-left: 119pt;text-indent: 0pt;text-align: left;">the system will respond with something like:</p><p class="s3" style="padding-top: 7pt;padding-left: 149pt;text-indent: -6pt;line-height: 106%;text-align: left;">((FNS YOUR-FIRST-FUNCTION ) VARS))</p><p style="text-indent: 0pt;text-align: left;"><br/></p><h2 style="padding-left: 35pt;text-indent: 0pt;text-align: left;">Saving Interlisp-D on Files                                                                              </h2><p style="padding-top: 9pt;padding-left: 107pt;text-indent: 0pt;line-height: 107%;text-align: left;">The functions <span class="s3">(FILES?) </span>and <span class="s3">(MAKEFILE </span>’<i>filename</i><span class="s3">) </span>are useful when it is time to save function, variables, windows, bitmaps, records and whatever else to files.</p><p class="s3" style="padding-top: 6pt;padding-left: 179pt;text-indent: -69pt;line-height: 107%;text-align: left;">(FILES?) <span class="p">displays a list of variables that have values and are not already a part of any file, and then the functions that are not already part of any file.</span></p><p style="padding-top: 6pt;padding-left: 179pt;text-indent: 0pt;text-align: left;">Type:</p><p class="s9" style="padding-top: 7pt;padding-left: 203pt;text-indent: 0pt;text-align: left;">(FILES?)</p><p style="padding-top: 7pt;padding-left: 179pt;text-indent: 0pt;text-align: left;">the system will respond with something like:</p><p class="s3" style="padding-top: 7pt;padding-left: 203pt;text-indent: 0pt;line-height: 106%;text-align: left;">the variables: MY.VARIABLE CURRENT.TURTLE...to be dumped</p><p style="text-indent: 0pt;text-align: left;"><br/></p><p class="s3" style="padding-top: 5pt;padding-left: 203pt;text-indent: 0pt;line-height: 106%;text-align: left;">the functions: RIGHT LEFT FORWARD BACKWARD CLEAR-SCREEN...to be dumped</p><p class="s3" style="padding-top: 7pt;padding-left: 203pt;text-indent: 0pt;text-align: left;">want to say where the above go?</p><p style="text-indent: 0pt;text-align: left;"><br/></p><p style="padding-left: 179pt;text-indent: 0pt;text-align: left;">If you type Y, the system will prompt with each item. There are three options:</p><p style="padding-top: 7pt;padding-left: 197pt;text-indent: -17pt;text-align: left;">1. To save the item, type the filename (unquoted) of the file where the item should be placed. (This can be a brand new file or an existing file.)</p><p style="padding-top: 7pt;padding-left: 179pt;text-indent: 0pt;text-align: left;">2. To skip the item, without removing it from consideration the next</p><p style="padding-left: 197pt;text-indent: 0pt;line-height: 107%;text-align: left;">time <span class="s3">(FILES?) </span>is called, type crø This will allow you to postpone the decision about where to save the item.</p><p style="padding-top: 6pt;padding-left: 197pt;text-indent: -18pt;text-align: left;">3. If the item should not be saved at all, type ]. Nowhere will appear after the item.</p><p style="padding-top: 7pt;padding-left: 179pt;text-indent: 0pt;text-align: left;">Part of an example interaction is shown in the following figure:</p><p style="text-indent: 0pt;text-align: left;"><br/></p><p style="text-indent: 0pt;text-align: left;"><br/></p><p style="padding-left: 128pt;text-indent: 0pt;text-align: left;"><span><img width="487" height="274" alt="image" src="Image_065.gif"/></span></p><p style="padding-top: 6pt;padding-left: 172pt;text-indent: 0pt;text-align: left;">Figure 7-9. Part of an interaction using the function <span class="s3">FILES?</span></p><p class="s3" style="padding-top: 7pt;padding-left: 179pt;text-indent: 0pt;text-align: left;">(FILES?) <span class="p">assembles the items by adding them to the appropriate file’s</span></p><p class="s3" style="padding-left: 179pt;text-indent: 0pt;line-height: 107%;text-align: left;">COMS <span class="p">variable (see the File Variables section above). </span>(FILES?) <span class="p">does NOT write the file to secondary storage (disks or floppies). It only</span></p><p style="padding-left: 179pt;text-indent: 0pt;text-align: left;">upclates the global variables discussed in the File Variables section above.</p><p style="text-indent: 0pt;text-align: left;"><br/></p><p class="s3" style="padding-left: 107pt;text-indent: 0pt;text-align: left;">(MAKEFILE ’filename)</p><p style="padding-top: 7pt;padding-left: 179pt;text-indent: 0pt;line-height: 165%;text-align: left;">actually writes the file to secondary storage. Type:</p><p class="s9" style="padding-left: 34pt;text-indent: 0pt;line-height: 11pt;text-align: center;">(MAKEFILE ’MY.FILE.NAME)</p><p style="padding-top: 7pt;padding-left: 179pt;text-indent: 0pt;text-align: left;">and the system will create the file. The function returns the full name of the file created. (i.e. <span class="s3">{DSK}MY.FlLE.NAME.; 1 </span>).</p><p style="text-indent: 0pt;text-align: left;"><br/></p><p style="padding-top: 4pt;padding-left: 179pt;text-indent: 0pt;line-height: 107%;text-align: left;">Files written to <span class="s3">(DSK) </span>are permanent files. They can be removed only by the user deleting them or by reformatting the disk.</p><p style="text-indent: 0pt;text-align: left;"><br/></p><p style="padding-left: 107pt;text-indent: 0pt;text-align: left;">Other file manipulation functions can be foun d in Chapter 4.</p><p class="nav">&nbsp;&nbsp;</p><p class="nav">&nbsp;</p><p class="nav"><a href="part9.htm">&lt; Previous</a><span> | </span><a href="../Medley-Primer.html">Contents</a><span> | </span><a href="part11.htm">Next &gt;</a></p><p class="nav">&nbsp;&nbsp;</p></body></html>
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-<html xmlns="http://www.w3.org/1999/xhtml"><head><meta http-equiv="Content-Type" content="text/html; charset=utf-8"/><title>08-YOUR-INIT</title><link href="navigation.css" rel="stylesheet" type="text/css"/><link href="document.css" rel="stylesheet" type="text/css"/></head><body><p class="top_nav"><a href="part10.htm">&lt; Previous</a><span> | </span><a href="../Medley-Primer.html">Contents</a><span> | </span><a href="part12.htm">Next &gt;</a></p><h1 style="padding-top: 3pt;padding-left: 35pt;text-indent: 0pt;text-align: left;"><a name="bookmark10">8. YOUR INIT FILE</a></h1><p style="padding-left: 35pt;text-indent: 0pt;line-height: 6pt;text-align: left;"><span><img width="640" height="8" alt="image" src="Image_066.png"/></span></p><p style="text-indent: 0pt;text-align: left;"><br/></p><p style="padding-left: 107pt;text-indent: 0pt;text-align: justify;">Lisp has a number of global variables that control the environment. Global variables make it easy to customize the environment to fit your needs. One way to do this is to</p><p style="padding-left: 107pt;text-indent: 0pt;line-height: 106%;text-align: justify;">develop an <span class="s3">INIT </span>file. This is a file that is loaded when you start an image. You can use it to set variables, load files, define functions, and any other things that you want to do to make the Medley environment suit you.</p><p style="text-indent: 0pt;text-align: left;"><br/></p><h2 style="padding-left: 35pt;text-indent: 0pt;text-align: left;">Using the USERGREETFILES Variable                                                          </h2><p style="text-indent: 0pt;text-align: left;"><br/></p><p style="padding-top: 4pt;padding-left: 107pt;text-indent: 0pt;text-align: left;">As described in File Variables section of Chapter 11, each program file has a global Your <span class="s3">INIT </span>file could be called <span class="s3">INIT</span>, <span class="s3">INIT.LISP</span>, <span class="s3">INIT.USER</span>, or whatever the</p><p style="padding-left: 107pt;text-indent: 0pt;text-align: left;">convention is at your site. There is no default name preferred by the system, it just</p><p style="padding-left: 107pt;text-indent: 0pt;line-height: 106%;text-align: left;">looks for the files listed in the variable <span class="s3">USERGREETFILES </span>(see below). Check to see what the preference is at your site. Put this file in your directory. Your directory name should be the same as your login name. The <span class="s3">INIT </span>file is loaded by the function <span class="s3">GREET</span>. <span class="s3">GREET </span>is normally run when Medley is started. If this is not the case at your site, or you want</p><p style="padding-left: 107pt;text-indent: 0pt;text-align: left;">to use the machine and Medley has already been started, you can run the function</p><p class="s3" style="padding-left: 107pt;text-indent: 0pt;text-align: left;">GREET <span class="p">yourself. If your user name was, for example, </span>TURING <span class="p">, then you would type:</span></p><p class="s3" style="padding-top: 7pt;padding-left: 143pt;text-indent: 0pt;text-align: left;">(GREET ’TURING)</p><p style="padding-top: 7pt;padding-left: 107pt;text-indent: 0pt;text-align: left;">This does a number of things, including undoing any previous greeting operation,</p><p style="padding-left: 107pt;text-indent: 0pt;line-height: 107%;text-align: left;">loading the site init file, and loading your init file. Where <span class="s3">GREET </span>looks for your INIT file depends on the value of the variable <span class="s3">USERGREETFILES</span>. The value of this variable is set when the system’s <span class="s3">SYSOUT </span>file is made, so check its value at your site! For example, its value could be:</p><p style="text-indent: 0pt;text-align: left;"><br/></p><p style="padding-left: 197pt;text-indent: 0pt;text-align: left;"><span><img width="236" height="89" alt="image" src="Image_067.gif"/></span></p><p style="padding-top: 9pt;padding-left: 202pt;text-indent: 0pt;text-align: left;">Figure 8-1. Possible Value of <span class="s3">USERGREETFILES</span></p><p style="padding-top: 7pt;padding-left: 107pt;text-indent: 0pt;line-height: 106%;text-align: left;">In each place you see <span class="s3">&gt;USER&gt;</span>, the argument passed to <span class="s3">GREET </span>is substituted into the path. This is your login name if you are just starting Medley. For example, the first value in the list would have the system check to see whether there was a</p><p class="s3" style="padding-left: 107pt;text-indent: 0pt;line-height: 107%;text-align: left;">{DSK}&lt;LISPFlLES&gt;TURING&gt;INIT.LISP <span class="p">file. No error is generated if you do not have an </span>INIT <span class="p">file, and none of the files in </span>USERGREETFILES <span class="p">are foun d.</span></p><p style="text-indent: 0pt;text-align: left;"><br/></p><h2 style="padding-left: 35pt;text-indent: 0pt;text-align: left;">Making an Init File                                                                                            </h2><p style="text-indent: 0pt;text-align: left;"><br/></p><p style="padding-top: 4pt;padding-left: 107pt;text-indent: 0pt;text-align: left;">As described in File Variables section of Chapter 11, each program file has a global</p><p style="padding-left: 107pt;text-indent: 0pt;line-height: 107%;text-align: left;">variable associated with it, whose name is formed by appending <span class="s3">COMS </span>to the end of the root filename. For any of the standard <span class="s3">INIT </span>file names, the variable <span class="s3">INITCOMS </span>is used. To set up an init file, begin by editing this variable. Type:</p><p class="s3" style="padding-top: 6pt;padding-left: 143pt;text-indent: 0pt;text-align: left;">(DV INITCOMS)</p><p class="s7" style="padding-top: 3pt;padding-left: 35pt;text-indent: 0pt;text-align: left;"> 8. YOUR INIT FILE                                                                                                                                                     </p><p style="text-indent: 0pt;text-align: left;"><br/></p><p style="padding-top: 4pt;padding-left: 107pt;text-indent: 0pt;text-align: left;">An SEdit window wiil appear. This window is the same as the one called with the</p><p style="padding-left: 107pt;text-indent: 0pt;line-height: 107%;text-align: left;">function <span class="s3">DF</span>, and described in the Using the List Structure Editor section in Chapter 7. This chapter assumes that you know how to use the SEdit structure editor .</p><p style="padding-top: 6pt;padding-left: 107pt;text-indent: 0pt;line-height: 107%;text-align: left;">The <span class="s3">COMS </span>variable is a list of lists. The first atom in each internal list specifies for the file package what types of items are in the list, and what it is to do with them. This</p><p style="padding-left: 107pt;text-indent: 0pt;line-height: 107%;text-align: left;">section will deal with three types of lists: <span class="s3">VARS</span>, <span class="s3">FILES</span>, and <span class="s3">P</span>. Please read about others in Chapter 17 of the <i>IRM</i>.</p><p style="padding-top: 6pt;padding-left: 107pt;text-indent: 0pt;text-align: justify;">Notice that inside the vars list, there is yet another list. The first item in the list is the name of the variable. It is bound to the value of the second item. There are many other variables that you can set by adding them to the VARS list. Some of these variables are described in Chapter 24, and many others can be foun d in the <i>IRM</i>.</p><p style="padding-top: 7pt;padding-left: 107pt;text-indent: 0pt;text-align: left;">If you want to automatically load files, that can be done in your init file also. For</p><p style="padding-left: 107pt;text-indent: 0pt;line-height: 107%;text-align: left;">example, if you always want to load tho Library file <span class="s3">SPY.LCOM </span>, you can load it by editing tho <span class="s3">INITCOMS </span>variable to list the appropriate file in the list starting with <span class="s3">FILES</span>:</p><p style="padding-top: 10pt;text-indent: 0pt;line-height: 11pt;text-align: center;">.</p><p style="text-indent: 0pt;line-height: 10pt;text-align: center;">.</p><p style="text-indent: 0pt;line-height: 11pt;text-align: center;">.</p><p class="s3" style="padding-left: 215pt;text-indent: 0pt;line-height: 11pt;text-align: left;">(FILES SPY)</p><p style="text-indent: 0pt;line-height: 10pt;text-align: center;">.</p><p style="text-indent: 0pt;line-height: 10pt;text-align: center;">.</p><p style="text-indent: 0pt;line-height: 11pt;text-align: center;">.</p><p style="padding-top: 5pt;padding-left: 111pt;text-indent: 0pt;text-align: center;">Figure 8-2. <span class="s3">INITCOMS </span>Changed to Load <span class="s3">SPY.LCOM </span>File</p><p style="padding-top: 7pt;padding-left: 107pt;text-indent: 0pt;text-align: left;">Other files can also be added by simply adding their names to this <span class="s3">FILES </span>list.</p><p style="padding-top: 7pt;padding-left: 107pt;text-indent: 0pt;text-align: left;">Another list that can appear in a <span class="s3">COMS </span>list begins with <span class="s3">P</span>. This list contains Lisp</p><p style="padding-left: 107pt;text-indent: 0pt;line-height: 107%;text-align: left;">expressions that are evaluated when the file is loaded. Do not put <span class="s3">DEFINEQ </span>expressions in this list. Define the function in the environment, and then save it on the file in the</p><p style="padding-left: 107pt;text-indent: 0pt;line-height: 11pt;text-align: left;">usual way (see Chapter 7).</p><p style="padding-top: 7pt;padding-left: 107pt;text-indent: 0pt;text-align: left;">One type of expression you might want to see here, however, is a <span class="s3">FONTCREATE </span>function (see Chapter 16). For example, of you want to use a Helvetica 12 BOLD font, and there is not a font descriptor for it normally in your environment, the appropriate call to <span class="s3">FONTCREATE </span>should be in the &quot;P&quot; list. The <span class="s3">INITCOMS </span>would look like this:</p><p style="text-indent: 0pt;line-height: 11pt;text-align: center;">.</p><p style="text-indent: 0pt;line-height: 10pt;text-align: center;">.</p><p style="text-indent: 0pt;line-height: 10pt;text-align: center;">.</p><p class="s3" style="padding-left: 214pt;text-indent: 0pt;line-height: 10pt;text-align: left;">(FILES SPY)</p><p class="s3" style="padding-left: 214pt;text-indent: 0pt;line-height: 10pt;text-align: left;">(P (FONTCREATE ’HELVETICA 12 ’BOLD))</p><p style="text-indent: 0pt;line-height: 10pt;text-align: center;">.</p><p style="text-indent: 0pt;line-height: 10pt;text-align: center;">.</p><p style="text-indent: 0pt;line-height: 11pt;text-align: center;">.</p><p style="text-indent: 0pt;text-align: left;"><br/></p><p style="padding-left: 111pt;text-indent: 0pt;text-align: center;">Figure 8-3. <span class="s3">INITCOMS </span>Edited to Include a  call to <span class="s3">FONTCREATE</span></p><p style="padding-top: 7pt;padding-left: 106pt;text-indent: 0pt;line-height: 106%;text-align: left;">To quit, exit from SEdit in the usual way. When you run the function <span class="s3">MAKEFILES </span>(see Chapter 7), be sure that you are connected to the directory (see Chapter 4) where the <span class="s3">INIT </span>file should appear. Now when <span class="s3">GREET </span>is run, your Init file will be loaded.</p><p style="text-indent: 0pt;text-align: left;"><br/></p><p style="text-indent: 0pt;text-align: left;"><br/></p><p style="padding-left: 35pt;text-indent: 0pt;line-height: 1pt;text-align: left;"><span><img width="665" height="1" alt="image" src="Image_068.png"/></span></p><p class="s8" style="padding-left: 35pt;text-indent: 0pt;text-align: left;">8-2 <span class="s6">Medley for the Novice, Release 2.0</span></p><p class="nav">&nbsp;&nbsp;</p><p class="nav">&nbsp;</p><p class="nav"><a href="part10.htm">&lt; Previous</a><span> | </span><a href="../Medley-Primer.html">Contents</a><span> | </span><a href="part12.htm">Next &gt;</a></p><p class="nav">&nbsp;&nbsp;</p></body></html>
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-<html xmlns="http://www.w3.org/1999/xhtml"><head><meta http-equiv="Content-Type" content="text/html; charset=utf-8"/><title>09-FLEXIBILITY</title><link href="navigation.css" rel="stylesheet" type="text/css"/><link href="document.css" rel="stylesheet" type="text/css"/></head><body><p class="top_nav"><a href="part11.htm">&lt; Previous</a><span> | </span><a href="../Medley-Primer.html">Contents</a><span> | </span><a href="part13.htm">Next &gt;</a></p><h1 style="padding-top: 3pt;padding-left: 35pt;text-indent: 0pt;text-align: left;"><a name="bookmark11">9. MEDLEY FORGIVENESS: DWIM</a></h1><p style="padding-left: 35pt;text-indent: 0pt;line-height: 6pt;text-align: left;"><span><img width="640" height="8" alt="image" src="Image_069.png"/></span></p><p style="text-indent: 0pt;text-align: left;"><br/></p><p class="s3" style="padding-top: 15pt;padding-left: 107pt;text-indent: 0pt;text-align: left;">DWIM <span class="p">(Do What I Mean) is an Interlisp utility that makes life easier.</span></p><p style="text-indent: 0pt;text-align: left;"><br/></p><p class="s3" style="padding-left: 107pt;text-indent: 0pt;line-height: 107%;text-align: left;">DWIM <span class="p">tries to match unrecognized variable and function names to known ones. This allows Lisp to interpret minor typing errors or misspellings in a function, without</span></p><p style="padding-left: 107pt;text-indent: 0pt;line-height: 107%;text-align: left;">causing a break. Line 152 of Figure 9-1 illustrates how the misspelled <span class="s3">BANNANNA </span>was replaced by <span class="s3">BANANA </span>before the expression was evaluated.</p><p style="text-indent: 0pt;text-align: left;"><br/></p><p style="text-indent: 0pt;text-align: left;"><br/></p><p style="padding-left: 144pt;text-indent: 0pt;text-align: left;"><span><img width="445" height="193" alt="image" src="Image_070.gif"/></span></p><p style="text-indent: 0pt;text-align: left;"><br/></p><p style="padding-left: 219pt;text-indent: 0pt;text-align: left;">Figure 9-1. Examples of <span class="s3">DWIM </span>Features</p><p style="text-indent: 0pt;text-align: left;"><br/></p><p style="padding-left: 107pt;text-indent: 0pt;text-align: left;">Sometimes <span class="s3">DWIM </span>may alter an expression you didn’t want it to. This may occur if, for</p><p style="padding-left: 107pt;text-indent: 0pt;line-height: 106%;text-align: left;">example, a hyphenated function name (e.g., <span class="s3">(MY-FUNCTION) </span>) is misused. If the system does not recognize the function name, it may think you are trying to subtract &quot;<span class="s3">FUNCTION</span>&quot; from &quot;<span class="s3">MY</span>&quot;. <span class="s3">DWIM </span>also takes the liberty of updating the function, so it will</p><p style="padding-left: 107pt;text-indent: 0pt;text-align: left;">have to be fixed. However, this is as much a blessing as a curse, since it points out the misused expression!</p><p class="nav">&nbsp;&nbsp;</p><p class="nav">&nbsp;</p><p class="nav"><a href="part11.htm">&lt; Previous</a><span> | </span><a href="../Medley-Primer.html">Contents</a><span> | </span><a href="part13.htm">Next &gt;</a></p><p class="nav">&nbsp;&nbsp;</p></body></html>
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-<html xmlns="http://www.w3.org/1999/xhtml"><head><meta http-equiv="Content-Type" content="text/html; charset=utf-8"/><title>10-BREAK-MENU</title><link href="navigation.css" rel="stylesheet" type="text/css"/><link href="document.css" rel="stylesheet" type="text/css"/></head><body><p class="top_nav"><a href="part12.htm">&lt; Previous</a><span> | </span><a href="../Medley-Primer.html">Contents</a><span> | </span><a href="part14.htm">Next &gt;</a></p><h1 style="padding-top: 3pt;padding-left: 35pt;text-indent: 0pt;text-align: left;"><a name="bookmark12">10. BREAKPACKAGE</a></h1><p style="padding-left: 35pt;text-indent: 0pt;line-height: 6pt;text-align: left;"><span><img width="640" height="8" alt="image" src="Image_071.png"/></span></p><p style="text-indent: 0pt;text-align: left;"><br/></p><p style="padding-top: 15pt;padding-left: 107pt;text-indent: 0pt;text-align: justify;">The Break Package is a part of Interlisp that makes debugging your programs much easier.</p><p style="text-indent: 0pt;text-align: left;"><br/></p><h2 style="padding-left: 35pt;text-indent: 0pt;text-align: left;">Break Windows                                                                                                 </h2><p style="padding-top: 9pt;padding-left: 107pt;text-indent: 0pt;text-align: justify;">A break is a function either called by the programmer or by the system when an error has occurred. A separate window opens for each break. This window works much like the Executive Window, except for extra menus unique to a break window. Inside a</p><p style="padding-left: 107pt;text-indent: 0pt;text-align: justify;">break window, you can examine variables, look at the call stack at the time of the</p><p style="padding-left: 107pt;text-indent: 0pt;text-align: justify;">break, or call the editor. Each successive break opens a new window, where you can execute functions without disturbing the original system stack. These windows</p><p style="padding-left: 107pt;text-indent: 0pt;text-align: justify;">disappear when you resolve the break and return to a higher level.</p><p style="text-indent: 0pt;text-align: left;"><br/></p><h2 style="padding-left: 35pt;text-indent: 0pt;text-align: left;">Break Package Example                                                                                  </h2><p style="text-indent: 0pt;text-align: left;"><br/></p><p style="padding-top: 4pt;padding-left: 107pt;text-indent: 0pt;text-align: left;">This example illustrates the basic break package functions. A more complete explanation of the breaking functions, and the break package will follow.</p><p style="text-indent: 0pt;text-align: left;"><br/></p><p style="padding-left: 107pt;text-indent: 0pt;text-align: left;">The correct definition of <span class="s3">FACTORIAL </span>is:</p><p class="s3" style="padding-top: 10pt;padding-left: 173pt;text-indent: -30pt;line-height: 106%;text-align: left;">(defun factorial (x) (if (zerop x)</p><p class="s3" style="padding-left: 203pt;text-indent: 0pt;line-height: 9pt;text-align: left;">1</p><p class="s3" style="padding-left: 197pt;text-indent: 0pt;line-height: 11pt;text-align: left;">(* x (factorial (1- x)))))</p><p style="text-indent: 0pt;text-align: left;"><br/></p><p style="padding-left: 107pt;text-indent: 0pt;line-height: 107%;text-align: left;">To demonstrate the break package, we have edited in an error: <span class="s3">DUMMY </span>in the IF statement is an unbound atom, it lacks a value.</p><p class="s3" style="padding-top: 9pt;padding-left: 173pt;text-indent: -30pt;line-height: 106%;text-align: left;">((defun factorial (x) (if (zerop x)</p><p class="s3" style="padding-left: 203pt;text-indent: 0pt;line-height: 9pt;text-align: left;">dummy</p><p class="s3" style="padding-left: 197pt;text-indent: 0pt;line-height: 11pt;text-align: left;">(* x (factorial (1- x)))))</p><p style="padding-top: 5pt;padding-left: 107pt;text-indent: 0pt;text-align: left;">The evaluated function</p><p style="text-indent: 0pt;text-align: left;"><br/></p><p class="s3" style="padding-left: 143pt;text-indent: 0pt;text-align: left;">(FACTORIAL 4)</p><p style="padding-top: 7pt;padding-left: 107pt;text-indent: 0pt;line-height: 106%;text-align: left;">should return 24, but the above function has an error. <span class="s3">DUMMY </span>is an unbound atom, an atom without an assigned value, so Lisp will &quot;break&quot;. A break window appears (Figure 10-1), that has all the functionality of the typing lisp expressions into the Executive</p><p style="padding-left: 107pt;text-indent: 0pt;text-align: left;">Window (The top level), in addition to the break menu functions. Each consecutive break will move to another level &quot;down&quot;.</p><p style="text-indent: 0pt;text-align: left;"><br/></p><p style="padding-left: 158pt;text-indent: 0pt;text-align: left;"><span><img width="403" height="124" alt="image" src="Image_072.gif"/></span></p><p style="text-indent: 0pt;text-align: left;"><br/></p><p style="padding-top: 4pt;padding-left: 247pt;text-indent: 0pt;text-align: left;">Figure 10-1. Break Window</p><p style="text-indent: 0pt;text-align: left;"><br/></p><p style="padding-left: 107pt;text-indent: 0pt;text-align: left;">Move the mouse cursor into the break window and hold down the middle mouse button.</p><p style="padding-left: 107pt;text-indent: 0pt;text-align: left;">The Break Menu will appear. Choose BT. Another menu, called the stack menu, will appear beside the break window. Choosing stack items from this menu will display</p><p style="padding-left: 107pt;text-indent: 0pt;text-align: justify;">another window. This window displays the function’s local variable bindings, or values (see Figure 10-2). This new window, titled FACTORlAL Frame, is an inspector window (see inspector Chapter 17).</p><p style="text-indent: 0pt;text-align: left;"><br/></p><p style="padding-left: 140pt;text-indent: 0pt;text-align: left;"><span><img width="455" height="230" alt="image" src="Image_073.gif"/></span></p><p style="text-indent: 0pt;text-align: left;"><br/></p><p style="padding-top: 4pt;padding-left: 208pt;text-indent: 0pt;text-align: left;">Figure 10-2. Back Trace of the System Stack</p><p style="text-indent: 0pt;text-align: left;"><br/></p><p style="padding-left: 107pt;text-indent: 0pt;text-align: left;">From the break window, you can call the editor for the function <span class="s3">FACTORIAL </span>by <span class="s3">middle- buttoning on the word FACTORIAL and selecting DisplayEdit from the menu that pops up</span>.</p><p style="padding-top: 7pt;padding-left: 107pt;text-indent: 0pt;text-align: left;">Replace the unbound atom <span class="s3">DUMMY </span>with 1. Exit the editor .</p><p style="padding-top: 7pt;padding-left: 107pt;text-indent: 0pt;text-align: left;">The function is fixed, and you can restart it from the last call on the stack. (It does not have to be started again from the Top Level.) To begin again from the last call on the stack, choose the last (top) <span class="s3">FACTORIAL </span>call in the BT menu. Select R<span class="s3">EVERT </span>from the middle button break window, or type it into the window. The break window will close, and a new one will appear with the message: <span class="s9">Breakpoint at FACTORIAL</span></p><p style="padding-top: 7pt;padding-left: 107pt;text-indent: 0pt;line-height: 107%;text-align: left;">To start execution with this last call to <span class="s3">FACTORIAL </span>, choose OK from the middle button break menu. The break window will disappear, and the correct answer, 24, will be</p><p style="padding-left: 107pt;text-indent: 0pt;line-height: 11pt;text-align: left;">returned to the top level.</p><p class="s6" style="padding-top: 3pt;text-indent: 0pt;text-align: right;">10. BREAKPACKAGE</p><p style="padding-left: 35pt;text-indent: 0pt;line-height: 1pt;text-align: left;"><span><img width="665" height="1" alt="image" src="Image_074.png"/></span></p><p style="text-indent: 0pt;text-align: left;"><br/></p><h2 style="padding-left: 35pt;text-indent: 0pt;text-align: left;">Ways to Stop Execution from the Keyboard (Breaking Lisp)                      </h2><p style="text-indent: 0pt;text-align: left;"><br/></p><p style="padding-top: 4pt;padding-left: 107pt;text-indent: 0pt;text-align: left;">There are ways you can stop execution from the keyboard. They differ in terms of how much of the current operating state is saved:</p><p style="text-indent: 0pt;text-align: left;"><br/></p><p style="padding-top: 7pt;padding-left: 107pt;text-indent: 0pt;text-align: left;">Control-G Provides you with a menu of processes to interrupt. Your process will</p><p style="padding-left: 179pt;text-indent: 0pt;line-height: 107%;text-align: left;">usually be &quot;<span class="s3">EXEC</span>&quot;. Choose it to break your process. A break window will then appear.</p><p style="padding-top: 9pt;padding-left: 179pt;text-indent: -71pt;text-align: left;">Control-B Causes your function to break, saves the stack, then displays a break window with all the usual break functions. For information on other interrupt characcers, see Chapter 30 in the <i>IRM</i>.</p><p style="text-indent: 0pt;text-align: left;"><br/></p><h2 style="padding-left: 35pt;text-indent: 0pt;text-align: left;">Break Menu                                                                                                       </h2><p style="text-indent: 0pt;text-align: left;"><br/></p><p style="padding-top: 4pt;padding-left: 107pt;text-indent: 0pt;text-align: left;">Move the mouse cursor into the break window. Hold the middle button down, and a new menu will pop up, like the one in Figure 10-3.</p><p style="text-indent: 0pt;text-align: left;"><br/></p><p style="padding-left: 286pt;text-indent: 0pt;text-align: left;"><span><img width="69" height="110" alt="image" src="Image_075.gif"/></span></p><p style="text-indent: 0pt;text-align: left;"><br/></p><p style="padding-top: 4pt;padding-left: 191pt;text-indent: 0pt;text-align: left;">Figure 10-3. Middle Button Menu in Break window</p><p style="padding-top: 7pt;padding-left: 107pt;text-indent: 0pt;text-align: left;">Five of the selections are particularly important when just starting to use Medley:</p><p class="s3" style="padding-top: 7pt;padding-left: 107pt;text-indent: 0pt;text-align: left;">BT <span class="p">Back Trace displays the stack in a menu beside the break window. Back</span></p><p style="padding-left: 155pt;text-indent: 0pt;text-align: left;">Trace is a very powerful debugging tool. Each function call is placed on the</p><p style="padding-left: 155pt;text-indent: 0pt;text-align: left;">stack and removed when the execution of that function is complete. Choosing an item on the stack will open another window displaying that item’s local</p><p style="padding-left: 155pt;text-indent: 0pt;text-align: left;">variables and their bindings. This is an inspector window that offers all the power of the inspector. (For details, see the section on the Inspector, Chapter 17.)</p><p class="s3" style="padding-top: 7pt;padding-left: 155pt;text-indent: -48pt;line-height: 107%;text-align: left;">? = <span class="p">Before you use this menu option, display the stack by choosing BT from this menu, and choose a function from it. Now, choose ?=. It will display the</span></p><p style="padding-left: 155pt;text-indent: 0pt;text-align: left;">current values of the arguments to the function that has been chosen from the stack.</p><p class="s2" style="padding-top: 6pt;padding-left: 155pt;text-indent: -48pt;text-align: left;"><span class="p"> Move back to the previous break window, or if there is no other break window, back to the top level, the Executive Window.</span></p><p class="s3" style="padding-top: 7pt;padding-left: 155pt;text-indent: -48pt;text-align: justify;">REVERT <span class="p">Move the point of execution back to a specified function call before the error. The function to revert back to is, by default, the last function call before the break. If, however, a different function call is chosen on the BT menu, revert will go back to the start of this function and open a new break window. The</span></p><p style="padding-left: 155pt;text-indent: 0pt;text-align: justify;">items on the stack above the new starting place will no longer exist. This is used in the tutorial example (see the Break Package Example section above).</p><p style="text-indent: 0pt;text-align: left;"><br/></p><p class="s3" style="padding-top: 4pt;padding-left: 155pt;text-indent: -48pt;line-height: 107%;text-align: left;">OK <span class="p">Continue execution from the point of the break. This is useful if you have a simple error, i.e., an unbound variable or a nonnumeric argument to an</span></p><p style="padding-left: 155pt;text-indent: 0pt;text-align: left;">arithmetic function. Reset the variable in the break window, then select OK. (see the Break Package Example section above).</p><p style="padding-top: 9pt;padding-left: 107pt;text-indent: 0pt;text-align: left;">In addition to being available on the middle button menu of the break window, all of these functions can be typed directly into the window. Only BT behaves differently</p><p style="padding-left: 107pt;text-indent: 0pt;text-align: left;">when typed. It types the stack into the trace window instead of opening a new window.)</p><p style="text-indent: 0pt;text-align: left;"><br/></p><h2 style="padding-left: 35pt;text-indent: 0pt;text-align: left;">Returning to Top Level                                                                                    </h2><p style="padding-top: 9pt;padding-left: 107pt;text-indent: 0pt;text-align: left;">Typing Control-D will immediately take you to the top level from any break window.</p><p style="padding-left: 107pt;text-indent: 0pt;text-align: left;">The functions called before the break will stop, but any side effect s of the function that occurred before the break remain. For example, if a function set a global variable before it broke, the variable will still be set after typing Control-D.</p><p class="nav">&nbsp;&nbsp;</p><p class="nav">&nbsp;</p><p class="nav"><a href="part12.htm">&lt; Previous</a><span> | </span><a href="../Medley-Primer.html">Contents</a><span> | </span><a href="part14.htm">Next &gt;</a></p><p class="nav">&nbsp;&nbsp;</p></body></html>
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-<html xmlns="http://www.w3.org/1999/xhtml"><head><meta http-equiv="Content-Type" content="text/html; charset=utf-8"/><title>11-WHAT-TO-DO</title><link href="navigation.css" rel="stylesheet" type="text/css"/><link href="document.css" rel="stylesheet" type="text/css"/></head><body><p class="top_nav"><a href="part13.htm">&lt; Previous</a><span> | </span><a href="../Medley-Primer.html">Contents</a><span> | </span><a href="part15.htm">Next &gt;</a></p><h1 style="padding-top: 3pt;padding-left: 35pt;text-indent: 0pt;text-align: left;"><a name="bookmark13">11. WHAT TO DO IF ...</a></h1><p style="padding-left: 35pt;text-indent: 0pt;line-height: 6pt;text-align: left;"><span><img width="640" height="8" alt="image" src="Image_076.png"/></span></p><p style="text-indent: 0pt;text-align: left;"><br/></p><p style="padding-left: 107pt;text-indent: 0pt;text-align: left;">The purpose of this chapter is to explain what to do in some of the problems commonly experienced by Medley users.</p><p style="text-indent: 0pt;text-align: left;"><br/></p><h4 style="padding-left: 71pt;text-indent: 0pt;text-align: left;">Executive Window turns black</h4><p style="padding-top: 7pt;padding-left: 107pt;text-indent: 0pt;text-align: left;">An example is shown in Figure 11-1.</p><p style="padding-top: 7pt;padding-left: 107pt;text-indent: 0pt;text-align: left;">Press any key to unfreeze the window and continue. This pause happens when the command you just typed causes enough information to be printed to fill the window. It gives you a chance to read that one window of text before moving on.</p><p style="text-indent: 0pt;text-align: left;"><br/></p><p style="padding-left: 180pt;text-indent: 0pt;text-align: left;"><span><img width="347" height="173" alt="image" src="Image_077.gif"/></span></p><p style="text-indent: 0pt;text-align: left;"><br/></p><p style="padding-top: 6pt;padding-left: 111pt;text-indent: 0pt;text-align: center;">Figure 11-1.  Blackened Executive Window</p><p style="text-indent: 0pt;text-align: left;"><br/></p><h4 style="padding-left: 71pt;text-indent: 0pt;text-align: left;">You closed the Executive Window</h4><p style="padding-top: 7pt;padding-left: 107pt;text-indent: 0pt;text-align: left;">Open another from the Background Menu.</p><p style="text-indent: 0pt;text-align: left;"><br/></p><h4 style="padding-left: 71pt;text-indent: 0pt;text-align: left;">Mouse disappears</h4><p style="padding-top: 7pt;padding-left: 107pt;text-indent: 0pt;text-align: left;">Type <span class="s9">(CURSOR T) </span>in the Executive Window. The cursor will reappear.</p><p style="text-indent: 0pt;text-align: left;"><br/></p><h4 style="padding-left: 71pt;text-indent: 0pt;text-align: left;">Second window appears</h4><p style="padding-top: 7pt;padding-left: 107pt;text-indent: 0pt;text-align: left;">This probably happens because you made a typing mistake, as in Figure 11-2.</p><p style="text-indent: 0pt;text-align: left;"><br/></p><p style="padding-left: 211pt;text-indent: 0pt;text-align: left;"><span><img width="269" height="81" alt="image" src="Image_078.gif"/></span></p><p style="text-indent: 0pt;text-align: left;"><br/></p><p style="padding-top: 6pt;padding-left: 111pt;text-indent: 0pt;text-align: center;">Figure 11-2.  Second Window Appears (Break Window) after Typing Error Made</p><p style="padding-top: 7pt;padding-left: 107pt;text-indent: 0pt;text-align: left;">Type a Control-D by simultaneously pressing the Control key and the &quot;D&quot;. This aborts the error condition, returning control to the Executive Window.</p><p style="text-indent: 0pt;text-align: left;"><br/></p><h4 style="padding-left: 71pt;text-indent: 0pt;text-align: left;">You keep getting beeped at</h4><p style="padding-top: 7pt;padding-left: 107pt;text-indent: 0pt;text-align: left;">Usually the beeping means that Medley want input from you. Look for the flashing</p><p style="padding-left: 107pt;text-indent: 0pt;text-align: left;">caret. It will usually be preceeded by some kind of prompt, indicating what you should type.</p><p style="text-indent: 0pt;text-align: left;"><br/></p><h4 style="padding-top: 4pt;padding-left: 71pt;text-indent: 0pt;text-align: left;">You cannot delete the first letter</h4><p style="padding-top: 7pt;padding-left: 107pt;text-indent: 0pt;text-align: left;">of the filename you are typing to <span class="s3">(FILES?) </span>. Type Control-E (error) You will get a linefeed and <span class="s2"></span> printed to the window. Now type the correct filename.</p><h4 style="padding-top: 10pt;padding-left: 71pt;text-indent: 0pt;text-align: left;">Your function is just sitting there</h4><p style="padding-top: 7pt;padding-left: 107pt;text-indent: 0pt;text-align: justify;">It is not returning a value, and you think that your program may be in an infinite loop or is having some other major problem. You can see what process is currently running by typing Control-T, or you could interrupt the process by typing Control-E.</p><p style="text-indent: 0pt;text-align: left;"><br/></p><h4 style="padding-left: 71pt;text-indent: 0pt;text-align: left;">A Break Window appears</h4><p style="padding-top: 7pt;padding-left: 107pt;text-indent: 0pt;text-align: justify;">If the Break Window look something like that shown in Figure 11-3, you are trying to save a file, but there is not enough space on the hard disk.</p><p style="text-indent: 0pt;text-align: left;"><br/></p><p style="padding-left: 161pt;text-indent: 0pt;text-align: left;"><span><img width="400" height="120" alt="image" src="Image_079.gif"/></span></p><p style="text-indent: 0pt;text-align: left;"><br/></p><p style="padding-top: 6pt;padding-left: 149pt;text-indent: 0pt;text-align: left;">Figure 11-3. Break Window Caused by Insufficient Space in Save File</p><p style="padding-top: 6pt;padding-left: 107pt;text-indent: 0pt;text-align: justify;">Exit from the Break Window by typing an up arrow <span class="s2"></span> followed by a Return. Delete old versions of files, and any other files you do not need. Then try again to save the file</p><p style="text-indent: 0pt;text-align: left;"><br/></p><h4 style="padding-left: 71pt;text-indent: 0pt;text-align: left;">You have run out of space</h4><p style="padding-top: 7pt;padding-left: 107pt;text-indent: 0pt;line-height: 107%;text-align: left;">Generally, a Break Window has appeared. The <span class="s3">GAINSPACE </span>function allows you to delete non-essential data structures. To use it, type:</p><p class="s9" style="padding-top: 6pt;padding-left: 143pt;text-indent: 0pt;text-align: left;">(GAINSPACE)</p><p style="padding-top: 7pt;padding-left: 107pt;text-indent: 0pt;text-align: left;">into the Executive Window. Answer <span class="s3">N </span>to all questions except the following:</p><p style="padding-top: 7pt;padding-left: 108pt;text-indent: 0pt;text-align: left;">• Delete edit history</p><p style="padding-top: 7pt;padding-left: 108pt;text-indent: 0pt;text-align: left;">• Delete history list</p><p style="padding-top: 7pt;padding-left: 108pt;text-indent: 0pt;text-align: left;">• Delete values of old variables</p><p style="padding-top: 7pt;padding-left: 108pt;text-indent: 0pt;text-align: left;">• Delete your <span class="s3">MASTERSCOPE </span>database</p><p style="padding-top: 7pt;padding-left: 107pt;text-indent: 0pt;line-height: 165%;text-align: left;">• Delete information for undoing your greeting. Save your work and reload Lisp as soon as possible.</p><h4 style="padding-top: 3pt;padding-left: 71pt;text-indent: 0pt;text-align: left;">A <span class="s9">redefined </span>message appears</h4><p class="s3" style="padding-top: 7pt;padding-left: 107pt;text-indent: 0pt;text-align: left;"><span class="p">The message </span>(<span class="s4">Some.Crucial.Function.Or.Variable </span>redefined) <span class="p">appears in the</span></p><p style="padding-left: 107pt;text-indent: 0pt;text-align: left;">Executive Window (see Figure 11-4). The function, variable, or other property has been &quot;smashed&quot; (i.e., its original definition has been changed). If this is not what you</p><p style="padding-left: 107pt;text-indent: 0pt;text-align: left;">wanted, type <span class="s9">UNDO </span>immediately!</p><p class="s6" style="padding-top: 3pt;text-indent: 0pt;text-align: right;">11. WHAT TO DO IF...</p><p style="padding-left: 35pt;text-indent: 0pt;line-height: 1pt;text-align: left;"><span><img width="665" height="1" alt="image" src="Image_080.png"/></span></p><p style="text-indent: 0pt;text-align: left;"><br/></p><p style="padding-left: 202pt;text-indent: 0pt;text-align: left;"><span><img width="289" height="168" alt="image" src="Image_081.gif"/></span></p><p style="text-indent: 0pt;text-align: left;"><br/></p><p style="padding-top: 4pt;padding-left: 238pt;text-indent: 0pt;text-align: left;">Figure 11-4. <span class="s3">CAR redefined!</span></p><p style="text-indent: 0pt;text-align: left;"><br/></p><h4 style="padding-left: 71pt;text-indent: 0pt;text-align: left;">UNBOUND ATOM</h4><p style="padding-top: 7pt;padding-left: 107pt;text-indent: 0pt;text-align: justify;">If this occurs, you probably just typed something wrong, or you passed an argument that should have been quoted to a function.</p><p style="text-indent: 0pt;text-align: left;"><br/></p><h4 style="padding-left: 71pt;text-indent: 0pt;text-align: left;">UNDEFINED CAR OF FORM</h4><p style="padding-top: 7pt;padding-left: 107pt;text-indent: 0pt;line-height: 106%;text-align: justify;">First, look at what caused the error. If the <span class="s3">CAR </span>of the form is a list, then you typed something wrong. If it is an atom, then perhaps that atom does not have a function associated with it. If it is a CLISP word like <span class="s3">if </span>or <span class="s3">for</span>, then <span class="s3">DWIM </span>may have been</p><p style="padding-left: 107pt;text-indent: 0pt;text-align: justify;">turned off (see Chapter 9). Type <span class="s9">(DWIM ’C) </span>to reenable DWIM.</p><p style="text-indent: 0pt;text-align: left;"><br/></p><h4 style="padding-left: 71pt;text-indent: 0pt;text-align: left;">You have traced APPLY</h4><p style="padding-top: 7pt;padding-left: 107pt;text-indent: 0pt;text-align: justify;">and your screen is spewing out information about everything going on in the</p><p style="padding-left: 107pt;text-indent: 0pt;line-height: 107%;text-align: left;">environment. Type Control E, and type <span class="s9">(UNBREAK ’APPLY) </span>before reeturning to the Executive.</p><p style="text-indent: 0pt;text-align: left;"><br/></p><p style="text-indent: 0pt;text-align: left;"><br/></p><p style="padding-left: 209pt;text-indent: 0pt;text-align: left;">[This page intentionally left blank]</p><p class="nav">&nbsp;&nbsp;</p><p class="nav">&nbsp;</p><p class="nav"><a href="part13.htm">&lt; Previous</a><span> | </span><a href="../Medley-Primer.html">Contents</a><span> | </span><a href="part15.htm">Next &gt;</a></p><p class="nav">&nbsp;&nbsp;</p></body></html>
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-<html xmlns="http://www.w3.org/1999/xhtml"><head><meta http-equiv="Content-Type" content="text/html; charset=utf-8"/><title>12-WINDOWS</title><link href="navigation.css" rel="stylesheet" type="text/css"/><link href="document.css" rel="stylesheet" type="text/css"/></head><body><p class="top_nav"><a href="part14.htm">&lt; Previous</a><span> | </span><a href="../Medley-Primer.html">Contents</a><span> | </span><a href="part16.htm">Next &gt;</a></p><h1 style="padding-top: 3pt;padding-left: 35pt;text-indent: 0pt;text-align: left;"><a name="bookmark14">12. WINDOWS AND REGIONS</a></h1><p style="padding-left: 35pt;text-indent: 0pt;line-height: 6pt;text-align: left;"><span><img width="640" height="8" alt="image" src="Image_082.png"/></span></p><p style="text-indent: 0pt;text-align: left;"><br/></p><h2 style="padding-top: 14pt;padding-left: 35pt;text-indent: 0pt;text-align: left;">Windows                                                                                                            </h2><p style="text-indent: 0pt;text-align: left;"><br/></p><p style="padding-top: 4pt;padding-left: 107pt;text-indent: 0pt;text-align: left;">Windows have two basic parts: an area on the screen containing a collection of pixels,</p><p style="padding-left: 107pt;text-indent: 0pt;text-align: left;">and a property list. The window properties determine how the window looks, the menus that can be accessed from it, what should happen when the mouse is inside the window and a mouse button is pressed, and soon.</p><p style="text-indent: 0pt;text-align: left;"><br/></p><h3 style="padding-left: 71pt;text-indent: 0pt;text-align: left;">CREATEW</h3><p style="padding-top: 8pt;padding-left: 107pt;text-indent: 0pt;text-align: left;">Some of the window’s properties can be specified when a window is created with the function <span class="s3">CREATE</span>W. In particular, it is easy to specify the size and position of the</p><p style="padding-left: 107pt;text-indent: 0pt;text-align: left;">window; its title; and the width of its borders.</p><p class="s3" style="padding-top: 7pt;padding-left: 143pt;text-indent: 0pt;text-align: left;">(CREATEW <span class="s4">region title borderw’idth</span>)</p><p style="text-indent: 0pt;text-align: left;"><br/></p><p style="padding-left: 106pt;text-indent: 0pt;line-height: 106%;text-align: left;">Region is a record (named <span class="s3">REGION </span>, with the fields <span class="s3">left</span>, <span class="s3">bottom </span>, <span class="s3">width</span>, and <span class="s3">height) </span>or a list. A region describes a rectangular area on the screen, the window’s dimensions and position. The fields left and bottom refer to the position of the bottom leff corner of</p><p style="padding-left: 107pt;text-indent: 0pt;text-align: justify;">the region on the screen. Wi dth and height refer to the width and height of the region. The usable space inside the window will be smaller than the width and height, because some of the window’s region is consumed by the title bar, and some is taken by the</p><p style="padding-left: 107pt;text-indent: 0pt;text-align: justify;">borders.</p><p style="text-indent: 0pt;text-align: left;"><br/></p><p style="padding-left: 107pt;text-indent: 0pt;text-align: justify;">Title is a string that will be placed in the title bar of the window.</p><p style="text-indent: 0pt;text-align: left;"><br/></p><p style="padding-left: 107pt;text-indent: 0pt;text-align: justify;">Borderwidth is the width of the border around the exterior of the window, in number of pixels.</p><p style="text-indent: 0pt;text-align: left;"><br/></p><p style="padding-left: 107pt;text-indent: 0pt;text-align: justify;">For example, typing:</p><p class="s3" style="padding-top: 7pt;padding-left: 173pt;text-indent: -30pt;text-align: left;">(SETQ MY.WINDOW (CREATEW (CREATEREGION l00 150 300 200) &quot;THIS IS MY OWN WINDOW&quot;)</p><p style="padding-top: 9pt;padding-left: 106pt;text-indent: 0pt;text-align: left;">or</p><p class="s3" style="padding-top: 7pt;padding-left: 142pt;text-indent: 0pt;text-align: left;">(SETQ MY.WINDOW (CREATEW</p><p class="s3" style="padding-top: 1pt;padding-left: 173pt;text-indent: 6pt;line-height: 88%;text-align: left;">(CREATEW ’(100 150 300 200) &quot;THIS IS MY OWN WINDOW&quot;)</p><p style="padding-top: 9pt;padding-left: 107pt;text-indent: 0pt;text-align: left;">produces a window with a default borderwidth. Note that you did not need to specify all the window’s properties (see Figure 12-1).</p><p style="text-indent: 0pt;text-align: left;"><br/></p><p style="padding-left: 114pt;text-indent: 0pt;text-align: left;"><span><img width="460" height="337" alt="image" src="Image_083.gif"/></span></p><p style="text-indent: 0pt;text-align: left;"><br/></p><p style="padding-top: 4pt;padding-left: 237pt;text-indent: 0pt;text-align: left;">Figure 12-1. Creating a Window</p><p style="text-indent: 0pt;text-align: left;"><br/></p><p style="padding-top: 7pt;padding-left: 107pt;text-indent: 0pt;line-height: 107%;text-align: left;">In fact, if <span class="s3">(CREATEW) </span>is called without specifying a region, you will be prompted to sweep out a region for the window (see Chapter 10)</p><p style="text-indent: 0pt;text-align: left;"><br/></p><h3 style="padding-left: 71pt;text-indent: 0pt;text-align: left;">WlNDOWPROP</h3><p style="padding-top: 8pt;padding-left: 107pt;text-indent: 0pt;text-align: left;">The function to access or add to any property of a window’s property list is</p><p class="s3" style="padding-left: 107pt;text-indent: 0pt;text-align: left;">WINDOWPROP<span class="p">.</span></p><p class="s3" style="padding-top: 7pt;padding-left: 143pt;text-indent: 0pt;text-align: left;">(WINDOWPROP <span class="s4">window property </span><span class="p">&lt;value&gt;</span>)</p><p style="text-indent: 0pt;text-align: left;"><br/></p><p style="padding-left: 107pt;text-indent: 0pt;text-align: left;">When you use <span class="s3">WINDOWPROP </span>with only two arguments—window and property—it</p><p style="padding-left: 107pt;text-indent: 0pt;text-align: left;">returns the value of the window’s property. When you use <span class="s3">WINDOWPROP </span>with all three</p><p style="padding-left: 107pt;text-indent: 0pt;text-align: left;">arguments—window, property and value—it sets the value the window’s property to the value you inserted for the third argument.</p><p style="text-indent: 0pt;text-align: left;"><br/></p><p style="padding-left: 107pt;text-indent: 0pt;text-align: left;">For example, consider the window, <span class="s3">MY WINDOW </span>, created using <span class="s3">(CREATEW)</span>. <span class="s3">TITLE </span>and</p><p class="s3" style="padding-left: 107pt;text-indent: 0pt;text-align: left;">REGION <span class="p">are both properties. Type</span></p><p class="s3" style="padding-top: 7pt;padding-left: 143pt;text-indent: 0pt;text-align: left;">(WINDOWPROP MY.WINDOW ’TITLE)</p><p style="padding-top: 7pt;padding-left: 107pt;text-indent: 0pt;line-height: 107%;text-align: left;">and the value of <span class="s3">MY.WlNDOW</span>’s <span class="s3">TITLE </span>property is returned, <span class="s3">&quot;THIS 1S MY OWN WINDOW&quot;</span>. To change the title, use the <span class="s3">WINDOWPROP </span>function, and give it the window, the property title, and the new title of the window.</p><p class="s3" style="padding-top: 6pt;padding-left: 143pt;text-indent: 0pt;text-align: left;">(WINDOWPROP MY.WINDOW ’TITLE &quot;MY FIRST WINDOW&quot;)</p><p style="padding-top: 7pt;padding-left: 107pt;text-indent: 0pt;text-align: left;">automatically changes the title and automatically updates the window. Now the window looks like Figure 12-2.</p><p style="text-indent: 0pt;text-align: left;"><br/></p><p style="text-indent: 0pt;text-align: left;"><br/></p><p style="padding-left: 116pt;text-indent: 0pt;text-align: left;"><span><img width="456" height="342" alt="image" src="Image_084.gif"/></span></p><p style="text-indent: 0pt;text-align: left;"><br/></p><p style="padding-top: 4pt;padding-left: 215pt;text-indent: 0pt;text-align: left;">Figure 12-2. <span class="s3">TITLE </span>is a Window Property</p><p style="padding-top: 7pt;padding-left: 107pt;text-indent: 0pt;line-height: 107%;text-align: left;">Altering the region of the window, <span class="s3">MY.WINDOW</span>, is also be done with <span class="s3">WINDOWPROP</span>, in the same way you changed the title. (Changing either of the first two numbers of a region</p><p style="padding-left: 107pt;text-indent: 0pt;text-align: left;">changes the position of the window on the screen. Changing either of the last two numbers changes the dimensions of the window itself.)</p><p style="text-indent: 0pt;text-align: left;"><br/></p><h3 style="padding-left: 71pt;text-indent: 0pt;text-align: left;">Getting Windows to Do Things</h3><p style="padding-top: 8pt;padding-left: 107pt;text-indent: 0pt;line-height: 107%;text-align: left;">Four basic window properties will be discussed here: <span class="s3">CURSORINFN </span>, <span class="s3">CURSOROUTFN</span>, <span class="s3">CURSORMOVEDFN</span>, and <span class="s3">BUTTONEVENTFN</span>.</p><p style="padding-top: 7pt;padding-left: 107pt;text-indent: 0pt;line-height: 107%;text-align: left;">A function can be stored as the value of the <span class="s3">CURSORlNFN </span>property of a window. It is called when the mouse cursor is moved into that window.</p><p style="padding-top: 6pt;padding-left: 48pt;text-indent: 0pt;text-align: center;">Look at the following  example:</p><p style="text-indent: 0pt;text-align: left;"><br/></p><p style="padding-left: 107pt;text-indent: 0pt;text-align: left;">1. First, create a window called <span class="s3">MY.WINDOW</span>. Type:</p><p class="s3" style="padding-top: 7pt;padding-left: 125pt;text-indent: 0pt;line-height: 11pt;text-align: left;">(SETQ MY.WINDQW</p><p class="s3" style="padding-left: 155pt;text-indent: 0pt;line-height: 10pt;text-align: left;">(CREATEW</p><p class="s3" style="padding-left: 172pt;text-indent: 0pt;line-height: 88%;text-align: left;">(CREATEREGION 200 200 200 200) &quot;THIS WINDOW WILL SCREAM!&quot;))</p><p style="padding-top: 6pt;padding-left: 49pt;text-indent: 0pt;text-align: center;">This creates a window.</p><p style="text-indent: 0pt;text-align: left;"><br/></p><p style="padding-left: 125pt;text-indent: -17pt;line-height: 107%;text-align: left;">2. Now define the function <span class="s3">SCREAME </span>R. It will be stored on the property <span class="s3">CURSOR1NFN </span>. (Notice that this function has one argument, <span class="s3">WlNDOWNAM </span>E. All functions called from the property <span class="s3">CURSOR1NFN </span>are passed the window it was called from. So the value of <span class="s3">MY.WINDOW </span>is bound to <span class="s3">WINDOWNAME</span>. When it is called, <span class="s3">SCREAME</span>R simply rings</p><p style="padding-left: 125pt;text-indent: 0pt;text-align: left;">bells.</p><p style="text-indent: 0pt;text-align: left;"><br/></p><p class="s3" style="padding-top: 6pt;padding-left: 142pt;text-indent: -18pt;line-height: 88%;text-align: left;">(DEFINEQ (SCREAMER (WINDOWNAME) (RINGBELLS)</p><p class="s3" style="padding-left: 142pt;text-indent: 0pt;line-height: 88%;text-align: left;">(PROMPTPRINT &quot;YAY - IT WORKS!&quot;) (RINGBELLS)))</p><p style="text-indent: 0pt;text-align: left;"><br/></p><p style="padding-left: 125pt;text-indent: -17pt;line-height: 107%;text-align: left;">3. Now, alter that window’s <span class="s3">CURSORINFN </span>property, so that the system calls the function <span class="s3">SCREAMER </span>at the appropriate time. Type:</p><p class="s3" style="padding-top: 7pt;padding-left: 155pt;text-indent: -30pt;line-height: 88%;text-align: left;">(WINDOWPROP MY.WINDOW ’CURSORINFN (FUNCTION SCREAMER))</p><p style="padding-top: 6pt;padding-left: 107pt;text-indent: 0pt;text-align: left;">4. After this, when you move the mouse cursor into <span class="s3">MY.WlNDOW </span>, the <span class="s3">CURSORINFN</span></p><p style="padding-left: 125pt;text-indent: 0pt;text-align: left;">property’s function is called, and it rings bells twice.</p><p style="text-indent: 0pt;text-align: left;"><br/></p><p class="s3" style="padding-left: 107pt;text-indent: 0pt;line-height: 107%;text-align: left;">CURSORINFN <span class="p">is one of the many window properties that come with each window - just as </span>REGION <span class="p">and </span>TITLE <span class="p">did. Other properties include:</span></p><p class="s3" style="padding-top: 7pt;padding-left: 203pt;text-indent: -96pt;line-height: 107%;text-align: left;">CURSOROUTFN <span class="p">The function that is the value of this property is executed when the cursor is moved out of a window.</span></p><p class="s3" style="padding-top: 6pt;padding-left: 203pt;text-indent: -96pt;line-height: 107%;text-align: left;">CURSORMOVEDFN <span class="p">The function that is the value of this property is executed when the cursor is moved while it is inside the window.</span></p><p class="s3" style="padding-top: 6pt;padding-left: 203pt;text-indent: -96pt;line-height: 107%;text-align: left;">BUTTONEVENTFN <span class="p">The function that is the value of this property is executed when either the left or middle mouse buttons are pressed (or released).</span></p><p style="text-indent: 0pt;text-align: left;"><br/></p><p style="padding-left: 107pt;text-indent: 0pt;text-align: left;">Figure 12-3 shows <span class="s3">MY.WlNDOW</span>’s properties. Notice that the <span class="s3">CURSORINFN </span>has the</p><p style="padding-left: 107pt;text-indent: 0pt;line-height: 107%;text-align: left;">function <span class="s3">SCREAMER </span>stored in it. The properties were shown in this window using the function <span class="s3">INSPECT</span>. <span class="s3">INSPECT </span>is covered in Chapter 17.</p><p style="text-indent: 0pt;text-align: left;"><br/></p><p style="padding-left: 136pt;text-indent: 0pt;text-align: left;"><span><img width="400" height="382" alt="image" src="Image_085.gif"/></span></p><p style="text-indent: 0pt;text-align: left;"><br/></p><p style="padding-left: 140pt;text-indent: 0pt;text-align: left;">Figure 12-3. Inspecting <span class="s3">MY.WINDOW </span>for Mouse-Related Window Properties</p><p style="text-indent: 0pt;text-align: left;"><br/></p><p style="padding-top: 4pt;padding-left: 107pt;text-indent: 0pt;line-height: 107%;text-align: left;">You can define functions for the values of the properties <span class="s3">CURSOROUTFN </span>and <span class="s3">CURSORMOVEDFN </span>in much the same way as you did for <span class="s3">CURSORINFN</span>. The function that is the value of the property <span class="s3">BUTTONEVENTF </span>N, however, can be specialized to respond in different ways, depending on which mouse button is pressed. This is explained in the</p><p style="padding-left: 107pt;text-indent: 0pt;line-height: 11pt;text-align: left;">next section.</p><p style="text-indent: 0pt;text-align: left;"><br/></p><h3 style="padding-left: 71pt;text-indent: 0pt;text-align: left;">BUTTONEVENTFN</h3><p style="text-indent: 0pt;text-align: left;"><br/></p><p class="s3" style="padding-left: 107pt;text-indent: 0pt;line-height: 106%;text-align: left;">BUTTONEVENTFN <span class="p">is another property of a window. The function that is stored as the value of this property is called when tho mouse is inside the window, and a mouse button is pressed. As an example of how to use it, type:</span></p><p class="s3" style="padding-top: 7pt;padding-left: 173pt;text-indent: -30pt;line-height: 88%;text-align: left;">(WINDOWPROP MY.WINDOW ’BUTTONEVENTFN (FUNCTION SCREAMER))</p><p style="padding-top: 6pt;padding-left: 107pt;text-indent: 0pt;line-height: 106%;text-align: left;">When the mouse cursor is moved into the window, bells will ring because of the <span class="s3">CURS0RlNFN</span>, but it will also ring bells when either the left or middle mouse button is pressed. Notice that the right mouse button functions as it usually does, with the</p><p style="padding-left: 106pt;text-indent: 0pt;line-height: 106%;text-align: left;">window manipulation menu. If only the left button should evoke the function <span class="s3">SCREAMER</span>, then the function can be written to do just this, using the function <span class="s3">MOUSESTATE</span>, and a form that only <span class="s3">MOUSESTATE </span>understands, <span class="s3">ONLY</span>. For example:</p><p class="s3" style="padding-top: 6pt;padding-left: 143pt;text-indent: 0pt;line-height: 11pt;text-align: left;">(DEFINEQ</p><p class="s3" style="padding-left: 173pt;text-indent: 0pt;line-height: 10pt;text-align: left;">(SCREAMER2 (WINDOWNAME)</p><p class="s3" style="padding-left: 233pt;text-indent: -30pt;line-height: 88%;text-align: left;">(if (MOUSESTATE (ONLY LEFT)) then (RINGBELLS))))</p><p style="text-indent: 0pt;text-align: left;"><br/></p><p style="padding-left: 107pt;text-indent: 0pt;line-height: 107%;text-align: left;">In addition to <span class="s3">(ONLY LEFT)</span>, <span class="s3">MOUSESTATE </span>can also be passed <span class="s3">(ONLY MIDDLE) </span>, <span class="s3">(ONLY RIGHT) </span>or combinations of these (e.g. <span class="s3">(OR (ONLY LEFT) (ONLY MIDDLE))</span>). You do not need to use <span class="s3">ONLY </span>with <span class="s3">MOUSESTATE </span>for every application. <span class="s3">ONLY </span>means that that</p><p style="padding-left: 107pt;text-indent: 0pt;text-align: left;">button is pressed and no other.</p><p style="padding-top: 7pt;padding-left: 107pt;text-indent: 0pt;text-align: left;">If you do write a function using <span class="s3">(ONLY RIGHT)</span>, be sure that your function also checks position of the mouse cursor. Even if you want your function to be executed when the mouse cursor is inside the window and the right button is pressed, there is a convention that the function <span class="s3">DOWINDOWCOM </span>should be executed when the mouse cursor is in the</p><p style="padding-left: 107pt;text-indent: 0pt;text-align: left;">title bar or the border of the window and the right mouse button is pressed. Please</p><p style="padding-left: 107pt;text-indent: 0pt;text-align: left;">program your windows using this tradition! For more information, please see Chapter 28 in the <i>IRM</i>.</p><p style="text-indent: 0pt;text-align: left;"><br/></p><h3 style="padding-left: 71pt;text-indent: 0pt;text-align: left;">Looking at a Window’s Properties</h3><p style="padding-top: 8pt;padding-left: 107pt;text-indent: 0pt;line-height: 107%;text-align: left;">I<span class="s3">NSPECT </span>is a function that displays a list of the properties of a window, and their values. Figure 12.3 shows the <span class="s3">INSPECT </span>function run with <span class="s3">MY.WINDOW </span>. Note the</p><p style="padding-left: 107pt;text-indent: 0pt;line-height: 107%;text-align: left;">properties introduced in <span class="s3">CREATEW </span>: <span class="s3">WBORDER </span>is the window’s border, <span class="s3">REG </span>is the region, and <span class="s3">WTITLE </span>is the window’s title.</p><p style="text-indent: 0pt;text-align: left;"><br/></p><h2 style="padding-left: 35pt;text-indent: 0pt;text-align: left;">Regions                                                                                                             </h2><p style="text-indent: 0pt;text-align: left;"><br/></p><p style="padding-top: 4pt;padding-left: 107pt;text-indent: 0pt;line-height: 107%;text-align: left;">A region is a record, with the fields <span class="s3">LEFT</span>, <span class="s3">BOTTOM </span>, <span class="s3">WIDTH</span>, and <span class="s3">HEIGHT</span>. <span class="s3">LEFT </span>and <span class="s3">BOTTOM </span>refer to where the bottom left hand corner of the region is positioned on the screen. <span class="s3">WIDTH </span>and <span class="s3">HEIGHT </span>refer to the width and height of the region.</p><p style="text-indent: 0pt;text-align: left;"><br/></p><p class="s3" style="padding-top: 4pt;padding-left: 107pt;text-indent: 0pt;text-align: left;">CREATEREGION <span class="p">creates an instance of a record of type </span>REGION <span class="p">. Type:</span></p><p class="s3" style="padding-top: 7pt;padding-left: 57pt;text-indent: 0pt;text-align: center;">(SETQ MY.REGION (CREATEREGION 15 l00 200 450))</p><p style="padding-top: 7pt;padding-left: 107pt;text-indent: 0pt;line-height: 106%;text-align: left;">to create a record of type <span class="s3">REGION </span>that denotes a rectangle 200 pixels high, and 450 pixels wide, whose bottom left corner is at position (15, 100). This record instance can be passed to any function that requires a region as an argument, such as <span class="s3">CREATEW </span>, above.</p><p class="nav">&nbsp;&nbsp;</p><p class="nav">&nbsp;</p><p class="nav"><a href="part14.htm">&lt; Previous</a><span> | </span><a href="../Medley-Primer.html">Contents</a><span> | </span><a href="part16.htm">Next &gt;</a></p><p class="nav">&nbsp;&nbsp;</p></body></html>
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-<html xmlns="http://www.w3.org/1999/xhtml"><head><meta http-equiv="Content-Type" content="text/html; charset=utf-8"/><title>13-WHAT-ARE-MENUS</title><link href="navigation.css" rel="stylesheet" type="text/css"/><link href="document.css" rel="stylesheet" type="text/css"/></head><body><p class="top_nav"><a href="part15.htm">&lt; Previous</a><span> | </span><a href="../Medley-Primer.html">Contents</a><span> | </span><a href="part17.htm">Next &gt;</a></p><h1 style="padding-top: 3pt;padding-left: 35pt;text-indent: 0pt;text-align: left;"><a name="bookmark15">13. WHAT ARE MENUS?</a></h1><p style="padding-left: 35pt;text-indent: 0pt;line-height: 6pt;text-align: left;"><span><img width="640" height="8" alt="image" src="Image_086.png"/></span></p><p style="text-indent: 0pt;text-align: left;"><br/></p><p style="padding-left: 107pt;text-indent: 0pt;text-align: left;">While Medley provides a number of menus of its own (see Chapter 3), this section</p><p style="padding-left: 107pt;text-indent: 0pt;text-align: left;">addresses the menus you wish to create. You will learn how to create a menu, display a menu, and define functions that make your menu useful. Menus are instances of</p><p style="padding-left: 107pt;text-indent: 0pt;text-align: left;">records (see Chapter 24). There are 27 fields that determine the composition of every menu. Because Medley provides default values for most of these descriptive fields, you need to familiarize yourself with only a few that we describe in this section.</p><p style="padding-top: 7pt;padding-bottom: 2pt;padding-left: 107pt;text-indent: 0pt;line-height: 107%;text-align: left;">Two of these fields, the <span class="s3">TITLE </span>of your menu, and the <span class="s3">ITEMS </span>you wish it to contain, can be typed into the executive window as shown below:</p><p style="padding-left: 191pt;text-indent: 0pt;text-align: left;"><span><img width="318" height="143" alt="image" src="Image_087.gif"/></span></p><p style="padding-top: 9pt;padding-left: 243pt;text-indent: 0pt;text-align: left;">Figure 13-1. Creating a menu</p><p style="padding-top: 5pt;padding-left: 107pt;text-indent: 0pt;line-height: 107%;text-align: left;">Note that creating a menu does not display it. <span class="s3">MY.MENU </span>is set to an instance of a menu record that specifies how the menu will look, but the menu is not displayed.</p><p style="text-indent: 0pt;text-align: left;"><br/></p><h2 style="padding-left: 35pt;text-indent: 0pt;text-align: left;">Displaying Menus                                                                                             </h2><p style="text-indent: 0pt;text-align: left;"><br/></p><p style="padding-top: 4pt;padding-left: 107pt;text-indent: 0pt;line-height: 107%;text-align: left;">Typing either the <span class="s3">MENU </span>or <span class="s3">ADDNENU </span>functions will display your menu on the screen. <span class="s3">MENU </span>implements pop-up menus, like the Background Menu or the Window Menu. <span class="s3">ADDMENU </span>puts menus into a semi-permanent window on the screen, and lets you select items from it.</p><p class="s3" style="padding-top: 6pt;padding-left: 107pt;text-indent: 0pt;line-height: 164%;text-align: left;">(MENU MENU POSITION) <span class="p">pops up a menu at a particular position on the screen. Type:</span></p><p class="s3" style="padding-left: 143pt;text-indent: 0pt;text-align: left;">(MENU MY.MENU NIL)</p><p style="padding-top: 7pt;padding-left: 107pt;text-indent: 0pt;line-height: 107%;text-align: left;">to position the menu at the end of the mouse cursor. Note that the <span class="s3">POSITION </span>argument is <span class="s3">NIL</span>. In order to go on, you must either choose an item, or move outside the menu</p><p style="padding-left: 107pt;text-indent: 0pt;text-align: left;">window and press a mouse button. When you do either, the menu will disappear. If you choose an item, then want to choose another, the menu must be redisplayed.</p><p class="s3" style="padding-top: 7pt;padding-left: 107pt;text-indent: 0pt;line-height: 107%;text-align: left;">(ADDMENU <span class="s4">menu window position</span>) <span class="p">positions a permanent menu on the screen, or in an existing window.</span></p><p style="padding-top: 6pt;padding-left: 107pt;text-indent: 0pt;text-align: left;">Type:</p><p class="s3" style="padding-top: 7pt;padding-left: 143pt;text-indent: 0pt;text-align: left;">(ADDMENU MY.MENU)</p><p style="padding-top: 7pt;padding-left: 107pt;text-indent: 0pt;line-height: 106%;text-align: left;">to display the menu as shown in Figure 13-2. This menu will remain active, (will stay on the screen) without stopping all the other processes. Because <span class="s3">ADDMENU </span>can display a menu without stopping all other processes, it is very popular in users programs.</p><p style="text-indent: 0pt;text-align: left;"><br/></p><p style="padding-top: 4pt;padding-left: 107pt;text-indent: 0pt;text-align: left;">If window is specified, the menu is displayed in that window. If window is not specified, a window the correct size for the menu is created, and the menu is displayed in that</p><p style="padding-left: 107pt;text-indent: 0pt;text-align: left;">window.</p><p style="padding-top: 7pt;padding-left: 107pt;text-indent: 0pt;text-align: left;">If position is not specified, the menu appears at the current position of the mouse cursor.</p><p style="text-indent: 0pt;text-align: left;"><br/></p><p style="padding-left: 221pt;text-indent: 0pt;text-align: left;"><span><img width="238" height="62" alt="image" src="Image_088.gif"/></span></p><p style="padding-top: 5pt;padding-left: 111pt;text-indent: 0pt;text-align: center;">Figure 13-2. Simple MenuDisplayed with <span class="s3">ADDMENU</span></p><p style="text-indent: 0pt;text-align: left;"><br/></p><h2 style="padding-left: 35pt;text-indent: 0pt;text-align: left;">Getting Menus to Do Stuff                                                                               </h2><p style="padding-top: 9pt;padding-left: 107pt;text-indent: 0pt;text-align: justify;">One way to make a menu do things is to specify more about the menu items. Instead of items simply being the strings or atoms that will appear in the menu, items can be lists, each list with three elements (see Figure 13-3). The first element of each list is what</p><p style="padding-left: 107pt;text-indent: 0pt;text-align: left;">will appear in the menu; the second expression is what is evaluated, and the results of the evaluation returned, when the item is selected; and the third expression is the</p><p style="padding-bottom: 1pt;padding-left: 107pt;text-indent: 0pt;text-align: left;">expression that should be printed in the Prompt window when a mouse button is held down while the mouse is pointing to that menu item. This third item should be thought of as help text for the user. If the third element of the list is NIL, the system responds with <b>Will select this item w hen you release the button</b>.</p><p style="padding-left: 148pt;text-indent: 0pt;text-align: left;"><span><img width="435" height="416" alt="image" src="Image_089.gif"/></span></p><p style="text-indent: 0pt;text-align: left;"><br/></p><p style="padding-left: 111pt;text-indent: 0pt;text-align: center;">Figure 13-3. Creating a  Menu  to do Things, then displaying it with  the function</p><p class="s3" style="padding-left: 111pt;text-indent: 0pt;text-align: center;">ADDMENU</p><p style="text-indent: 0pt;text-align: left;"><br/></p><p style="padding-top: 4pt;padding-left: 107pt;text-indent: 0pt;line-height: 107%;text-align: left;">Now when an item is selected from <span class="s3">MY.MENU2</span>, something will happen. When a mouse button is held down, the expression typed as the third element in the item’s</p><p style="padding-left: 107pt;text-indent: 0pt;line-height: 11pt;text-align: left;">specification will be printed in the Prompt window. (See Figure 13-4.)</p><p style="text-indent: 0pt;text-align: left;"><br/></p><p style="padding-left: 107pt;text-indent: 0pt;text-align: left;"><span><img width="552" height="111" alt="image" src="Image_090.gif"/></span></p><p style="text-indent: 0pt;text-align: left;"><br/></p><p style="padding-left: 111pt;text-indent: 0pt;text-align: center;">Figure 13-4. Mouse Button Held Down While Mouse Cursor SeIects <span class="s3">NEXT.QUESTION</span></p><p style="text-indent: 0pt;text-align: left;"><br/></p><p style="padding-bottom: 1pt;padding-left: 107pt;text-indent: 0pt;text-align: left;">When the mouse button is released (i.e., the item is selected) the expression that was typed as the second element of the item’s specification will be run. (See Figure 13-5.)</p><p style="padding-left: 174pt;text-indent: 0pt;text-align: left;"><span><img width="364" height="156" alt="image" src="Image_091.gif"/></span></p><p style="padding-top: 5pt;padding-left: 111pt;text-indent: 0pt;text-align: center;">Figure 13-5. <span class="s3">NEXT-QUESTION </span>Selected</p><p style="text-indent: 0pt;text-align: left;"><br/></p><h2 style="padding-top: 8pt;padding-left: 35pt;text-indent: 0pt;text-align: left;">WHENHELDFN and WHENSELECTEDFN Fields of a Menu                         </h2><p style="padding-top: 9pt;padding-left: 107pt;text-indent: 0pt;text-align: left;">Another way to get a menu to do things is to define functions, and make them the</p><p style="padding-left: 107pt;text-indent: 0pt;text-align: left;">values of the menu’s <span class="s3">WHENHELDFN </span>and <span class="s3">WHENSELECTEDFN </span>fields. As the value of the</p><p class="s3" style="padding-left: 107pt;text-indent: 0pt;text-align: left;">WHENHELDFN <span class="p">field of a menu, the function you defined will be executed when you press</span></p><p style="padding-left: 107pt;text-indent: 0pt;line-height: 107%;text-align: left;">and hold a mouse button inside the menu. As the value of the <span class="s3">WHENSELECTEDFN </span>field of a menu, the function you defined will be executed when you choose a menu item. This</p><p style="padding-left: 107pt;text-indent: 0pt;text-align: left;">example has the same functionality as the previous example, where each menu item was entered as a list of three items.</p><p style="padding-top: 6pt;padding-left: 107pt;text-indent: 0pt;text-align: left;">As an example, type in these two functions so that they can be executed when the menu is created and displayed:</p><p style="text-indent: 0pt;text-align: left;"><br/></p><p class="s3" style="padding-top: 6pt;padding-left: 143pt;text-indent: 0pt;line-height: 88%;text-align: left;">(DEFINEQ (MY.MENU3.WHENHELD (ITEM.SELECTED MENU.FROM BUTTON.PRESSED)</p><p class="s3" style="padding-left: 143pt;text-indent: 0pt;line-height: 10pt;text-align: left;">(SELECTQ ITEM.SELECTED</p><p class="s3" style="padding-left: 179pt;text-indent: 0pt;line-height: 10pt;text-align: left;">(QUIT (PROMPTPRINT &quot;CHOOSE THIS TO STOP&quot;)</p><p class="s3" style="padding-left: 215pt;text-indent: -36pt;line-height: 88%;text-align: left;">(NEXT-QUESTION (PROMPTPRINT &quot;CHOOSE THIS TO BE ASKED THE NEXT QUESTION&quot;))</p><p class="s3" style="padding-left: 215pt;text-indent: -36pt;line-height: 88%;text-align: left;">(NEXT-TOPIC (PROMPTPRINT &quot;CHOOSE THIS TO MOVE ON TO THE NEXT SUBJECT&quot;))</p><p class="s3" style="padding-left: 215pt;text-indent: -36pt;line-height: 88%;text-align: left;">(SEE-TOPICS (PROMPTPRINT &quot;CHOOSE THIS TO SEE THE TOPICS NOT YET LEARNED&quot;))</p><p class="s3" style="padding-left: 179pt;text-indent: 0pt;line-height: 10pt;text-align: left;">(ERROR (PROMPTPRINT &quot;NO MATCH FOUND&quot;))))</p><p style="text-indent: 0pt;text-align: left;"><br/></p><p class="s3" style="padding-left: 143pt;text-indent: 0pt;line-height: 88%;text-align: left;">(DEFINEQ (MY.MENU3.WHENSELECTED (ITEM.SELECTED MENU.FROM BUTTON.PRESSED)</p><p class="s3" style="padding-left: 143pt;text-indent: 0pt;line-height: 10pt;text-align: left;">(SELECTQ ITEM.SELECTED</p><p class="s3" style="padding-left: 179pt;text-indent: 0pt;line-height: 10pt;text-align: left;">(QUIT (PRINT &quot;STOPPED&quot;)</p><p class="s3" style="padding-left: 179pt;text-indent: 0pt;line-height: 88%;text-align: left;">(NEXT-QUESTION (PRINT &quot;HERE IS THE NEXT QUESTION&quot;)) (NEXT-TOPIC (PRINT &quot;HERE IS THE NEXT SUBJECT&quot;)) (SEE-TOPICS (PRINT &quot;THE FOLLOWING HAVE NOT BEEN</p><p class="s3" style="padding-left: 215pt;text-indent: 0pt;line-height: 10pt;text-align: left;">LEARNED . . .&quot;))</p><p class="s3" style="padding-left: 179pt;text-indent: 0pt;line-height: 11pt;text-align: left;">(ERROR (PROMPTPRINT &quot;NO MATCH FOUND&quot;))))</p><p style="text-indent: 0pt;text-align: left;"><br/></p><p style="padding-left: 107pt;text-indent: 0pt;text-align: left;">Now, to create the menu, type:</p><p class="s3" style="padding-top: 7pt;padding-left: 143pt;text-indent: 0pt;line-height: 10pt;text-align: left;">(SETQ MY.MENU3 (CREATE MENU</p><p class="s3" style="padding-left: 167pt;text-indent: 0pt;line-height: 11pt;text-align: left;">TITLE <span class="s2"></span><span class="p"> </span>&quot;PLEASE CHOOSE ONE OF THE ITEMS&quot;</p><p class="s3" style="padding-left: 167pt;text-indent: 0pt;line-height: 86%;text-align: left;">ITEMS <span class="s2"></span><span class="p"> </span>’(QUIT NEXT-QUESTION NEXT-TOPIC SEE-TOPICS) WHENHELDFN <span class="s2"></span><span class="p"> </span>(FUNCTION MY.MENU3.WHENHELD) WHENSELECTEDFN <span class="s2"></span><span class="p"> </span>(FUNCTION MY.MENU3.WHENSELECTED)))</p><p style="padding-top: 6pt;padding-left: 107pt;text-indent: 0pt;text-align: left;">To see your menu work, type</p><p class="s3" style="padding-top: 7pt;padding-left: 143pt;text-indent: 0pt;text-align: left;">(ADDMENU MY.MENU3)</p><p style="padding-top: 7pt;padding-left: 107pt;text-indent: 0pt;line-height: 107%;text-align: left;">Now, due to executing the <span class="s3">WHENHELDFN </span>function, holding down any mouse button while pointing to a menu item will display an explanation of the item in the prompt window.</p><p style="padding-left: 107pt;text-indent: 0pt;text-align: left;">The screen will once again look like Figure 13-4 when the mouse button is held when the mouse cursor is pointing to the item <span class="s3">NEXT-TOPIC </span>.</p><p style="padding-top: 7pt;padding-left: 107pt;text-indent: 0pt;line-height: 106%;text-align: justify;">Now due to executing the <span class="s3">WHENSELECTEDFN </span>function, releasing the mouse button to select an item will cause the proper actions for that item to be taken. The screen will once again look like Figure 13-5 when the item <span class="s3">NEXT-TOPIC </span>is selected. The crucial</p><p style="padding-left: 107pt;text-indent: 0pt;text-align: left;">thing to note is that the functions you defined for <span class="s3">WHENHELDFN </span>and <span class="s3">WHENSELECTEDFN</span></p><p style="padding-left: 107pt;text-indent: 0pt;text-align: left;">are automatically given the following arguments:</p><p style="text-indent: 0pt;text-align: left;"><br/></p><p style="padding-left: 107pt;text-indent: 0pt;text-align: left;">1. The item that was sølected, <span class="s3">ITEM.SELECTED</span></p><p style="padding-top: 7pt;padding-left: 107pt;text-indent: 0pt;text-align: left;">2. The menu it was selected from, <span class="s3">MENU.FROM</span></p><p style="padding-top: 7pt;padding-left: 107pt;text-indent: 0pt;text-align: left;">3. The mousø button that was pressed <span class="s3">BUTTON PRESSED</span></p><p style="padding-top: 7pt;padding-left: 107pt;text-indent: 0pt;text-align: justify;">These functions, <span class="s3">MY.MENU3.WHENHELD </span>and <span class="s3">MY.MENU3.WHENSELECTED</span>, were quoted</p><p style="padding-left: 107pt;text-indent: 0pt;line-height: 107%;text-align: left;">using <span class="s3">FUNCTION </span>instead of <span class="s3">QUOTE </span>both for program readability and so that the compiler can produce faster code when the program is compiled. It is good style to quote</p><p style="padding-left: 107pt;text-indent: 0pt;line-height: 12pt;text-align: justify;">functions in Lisp by using the function <span class="s3">FUNCTION </span>instead of <span class="s3">QUOTE</span>.</p><p style="text-indent: 0pt;text-align: left;"><br/></p><h2 style="padding-top: 4pt;padding-left: 35pt;text-indent: 0pt;text-align: left;">Looking at a Menu’s Fields                                                                             </h2><p class="s3" style="padding-top: 9pt;padding-left: 107pt;text-indent: 0pt;line-height: 107%;text-align: left;">INSPECT <span class="p">is a function that displays a list of the fields of a menu, and their values. Figure 13-6 shows the various fields of </span>MY.MENU3 <span class="p">when the function </span>(INSPECT</p><p class="s3" style="padding-bottom: 1pt;padding-left: 107pt;text-indent: 0pt;line-height: 107%;text-align: left;">MY.MENU3) <span class="p">was called. Notice the values that were assigned by the examples, and all the defaults.</span></p><p style="padding-left: 125pt;text-indent: 0pt;text-align: left;"><span><img width="496" height="437" alt="image" src="Image_092.gif"/></span></p><p style="padding-top: 4pt;padding-left: 242pt;text-indent: 0pt;text-align: left;">Figure 13-6. <span class="s3">MY.MENU3 </span>Fields</p><p class="nav">&nbsp;&nbsp;</p><p class="nav">&nbsp;</p><p class="nav"><a href="part15.htm">&lt; Previous</a><span> | </span><a href="../Medley-Primer.html">Contents</a><span> | </span><a href="part17.htm">Next &gt;</a></p><p class="nav">&nbsp;&nbsp;</p></body></html>
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-<html xmlns="http://www.w3.org/1999/xhtml"><head><meta http-equiv="Content-Type" content="text/html; charset=utf-8"/><title>14-BITMAPS</title><link href="navigation.css" rel="stylesheet" type="text/css"/><link href="document.css" rel="stylesheet" type="text/css"/></head><body><p class="top_nav"><a href="part16.htm">&lt; Previous</a><span> | </span><a href="../Medley-Primer.html">Contents</a><span> | </span><a href="part18.htm">Next &gt;</a></p><h1 style="padding-top: 3pt;padding-left: 35pt;text-indent: 0pt;text-align: left;"><a name="bookmark16">14. BITMAPS</a></h1><p style="padding-left: 35pt;text-indent: 0pt;line-height: 6pt;text-align: left;"><span><img width="640" height="8" alt="image" src="Image_093.png"/></span></p><p style="text-indent: 0pt;text-align: left;"><br/></p><p style="padding-left: 107pt;text-indent: 0pt;text-align: left;">A bitmap is a rectangular array of dots. The dots are called &quot;pixels&quot; (for picture</p><p style="padding-left: 107pt;text-indent: 0pt;text-align: left;">elements). Each dot, or pixel, is represented by a single bit. When a pixel or bit is turned on (i.e. that bit set to 1), a black dot is inserted into a bitmap. If you have a bitmap of a floppy on your screen (Figure 14-1), then all of the bits in the area that make up the floppy are turned on, and the surrounding bits are turned off.</p><p style="text-indent: 0pt;text-align: left;"><br/></p><p style="text-indent: 0pt;text-align: left;"><br/></p><p style="padding-left: 198pt;text-indent: 0pt;text-align: left;"><span><img width="303" height="281" alt="image" src="Image_094.gif"/></span></p><p style="text-indent: 0pt;text-align: left;"><br/></p><p style="padding-top: 4pt;padding-left: 237pt;text-indent: 0pt;text-align: left;">Figure 14-1. Bitmap of a Floppy</p><p style="text-indent: 0pt;text-align: left;"><br/></p><p class="s3" style="padding-left: 106pt;text-indent: 0pt;text-align: left;">BITMAPCREATE <span class="p">creates a bitmap, even though it can’t be seen.</span></p><p class="s3" style="padding-top: 7pt;padding-left: 142pt;text-indent: 0pt;text-align: left;">(BITMAPCREATE <span class="s4">width height</span>)</p><p style="padding-top: 7pt;padding-left: 107pt;text-indent: 0pt;text-align: left;">If the width and height are not supplied, the system will prompt you for them.</p><p class="s3" style="padding-top: 7pt;padding-left: 106pt;text-indent: 0pt;text-align: left;">EDITBM <span class="p">edits the bitmap. The syntax of the function is:</span></p><p class="s3" style="padding-top: 7pt;padding-left: 142pt;text-indent: 0pt;text-align: left;">(EDITBM <span class="s4">bitmapname</span>)</p><p style="padding-top: 7pt;padding-left: 107pt;text-indent: 0pt;text-align: left;">Try the following to produce the results in Figure 14-4:</p><p class="s3" style="padding-top: 7pt;padding-left: 143pt;text-indent: 0pt;line-height: 106%;text-align: left;">(SETQ MY.BITMAP (BITMAPCREATE 60 40)) EDITBM MY.BITMAP)</p><p style="text-indent: 0pt;text-align: left;"><br/></p><p class="s10" style="padding-left: 107pt;text-indent: 0pt;text-align: justify;">To dra w <span class="p">In the bitmap, move the mouse into the gridded section of the bitmap editor, and press and hold the leff mouse button. Move the mouse around to turn on the bits</span></p><p style="padding-left: 107pt;text-indent: 0pt;text-align: justify;">represented by the spaces in the grid. Notice that each space in the grid represents one pixel on the bitmap</p><p class="s10" style="padding-top: 7pt;padding-left: 107pt;text-indent: 0pt;text-align: justify;">To erase <span class="p">Move the mouse into the gridded section of the bitmap editor, and press and hold the center mouse button. Move the mouse around to turn off the bits represented by the spaces in the gridded section of the bitmap editor.</span></p><p style="text-indent: 0pt;text-align: left;"><br/></p><p class="s10" style="padding-top: 4pt;padding-left: 107pt;text-indent: 0pt;text-align: left;">To w ork on a different section <span class="p">Point with the mouse cursor to the picture of the</span></p><p style="padding-left: 107pt;text-indent: 0pt;text-align: left;">actual bitmap (the upper left corner of the bitmap editor). Press and hold the left mouse button. A menu with the single item, Move will appear. (See Figure 14-2.) Choose this</p><p style="padding-left: 107pt;text-indent: 0pt;text-align: left;">item.</p><p style="text-indent: 0pt;text-align: left;"><br/></p><p style="padding-left: 139pt;text-indent: 0pt;text-align: left;"><span><img width="457" height="360" alt="image" src="Image_095.gif"/></span></p><p style="padding-top: 7pt;padding-left: 211pt;text-indent: 0pt;text-align: left;">Figure 14-2. Menu with Single Item (Move)</p><p style="text-indent: 0pt;text-align: left;"><br/></p><p style="padding-left: 107pt;text-indent: 0pt;text-align: left;">You will be asked to position a ghost window over the bitmap. This ghost window</p><p style="padding-left: 107pt;text-indent: 0pt;text-align: left;">represents the portion of the bitmap that you are currently editing. Place it over the</p><p style="padding-left: 107pt;text-indent: 0pt;text-align: left;">section of the bitmap that you wish to edit and click the left mouse button (see Figure 14-3).</p><p style="text-indent: 0pt;text-align: left;"><br/></p><p style="padding-left: 218pt;text-indent: 0pt;text-align: left;"><span><img width="258" height="270" alt="image" src="Image_096.gif"/></span></p><p style="padding-top: 7pt;padding-left: 195pt;text-indent: 0pt;text-align: left;">Figure 14-3. Ghost Window Awaiting Positioning</p><p style="text-indent: 0pt;text-align: left;"><br/></p><p class="s10" style="padding-top: 4pt;padding-left: 107pt;text-indent: 0pt;text-align: left;">To end the session, <span class="p">bring the mouse cursor into the upper-right portion of the window (the grey area) and press the center button. Select OK from the menu to save your</span></p><p style="padding-left: 107pt;text-indent: 0pt;text-align: left;">artwork.</p><p style="text-indent: 0pt;text-align: left;"><br/></p><p style="padding-left: 197pt;text-indent: 0pt;text-align: left;"><span><img width="305" height="271" alt="image" src="Image_097.gif"/></span></p><p style="padding-top: 6pt;padding-left: 241pt;text-indent: 0pt;text-align: left;">Figure 14-4. Editing a Bitmap</p><p style="text-indent: 0pt;text-align: left;"><br/></p><p class="s3" style="padding-left: 107pt;text-indent: 0pt;text-align: left;">BITBLT <span class="p">is the primitive function for moving bits (or pixels) from one bitmap to another.</span></p><p style="padding-left: 107pt;text-indent: 0pt;text-align: left;">It extracts bits from the source bitmap, and combines them in appropriate ways with those of the destination bitmap. The syntax of the function is:</p><p style="text-indent: 0pt;text-align: left;"><br/></p><p class="s3" style="padding-left: 143pt;text-indent: 0pt;line-height: 88%;text-align: left;">(BITBLT sourcebitmap sourcelefl sourcebottom destinationbitmap destinationleft destinationbottom width height sourcetype operation texture clippIngregion)</p><p style="text-indent: 0pt;text-align: left;"><br/></p><p style="padding-left: 107pt;text-indent: 0pt;line-height: 107%;text-align: left;">Here’s how it’s done —using <span class="s3">MY.BITMAP </span>as the sourcebitmap and <span class="s3">MY.WlNDOW </span>as the destinationbitmap.</p><p class="s3" style="padding-top: 6pt;padding-left: 143pt;text-indent: 0pt;line-height: 11pt;text-align: left;">(BITBLT MY.BITMAP NIL NIL</p><p class="s3" style="padding-left: 191pt;text-indent: 0pt;line-height: 11pt;text-align: left;">MY.WINDOW NIL NIL NIL NIL ‘INPUT ‘REPLACE)</p><p style="text-indent: 0pt;text-align: left;"><br/></p><p style="padding-left: 107pt;text-indent: 0pt;text-align: left;">Note that the destination bitmap can be, and usually is, a window. Actually, it is the bitmap of a window, but the system handles that detail for you. Because of the <span class="s3">NIL</span>s</p><p style="padding-left: 107pt;text-indent: 0pt;text-align: left;">(meaning &quot;use the default&quot;), <span class="s3">MY.BITMAP </span>will be <span class="s3">BITBLT</span>’d into the lower right corner of</p><p class="s3" style="padding-left: 107pt;text-indent: 0pt;text-align: left;">MY.WlNDOW <span class="p">(see Figure 14-5).</span></p><p style="text-indent: 0pt;text-align: left;"><br/></p><p style="padding-left: 161pt;text-indent: 0pt;text-align: left;"><span><img width="399" height="427" alt="image" src="Image_098.gif"/></span></p><p style="text-indent: 0pt;text-align: left;"><br/></p><p style="padding-top: 4pt;padding-left: 107pt;text-indent: 90pt;line-height: 245%;text-align: left;">Figure 14-5. <span class="s3">BITBLT </span>ing a Bitmap onto a Window Here is what each of the <span class="s3">BITBLT </span>arguments to the function mean:</p><p class="s3" style="padding-top: 2pt;padding-left: 107pt;text-indent: 0pt;text-align: left;">sourcebitmap <span class="p">The bitmap to be moved into the destinationbitmap</span></p><p class="s3" style="padding-top: 7pt;padding-left: 107pt;text-indent: 0pt;text-align: left;">sourceleft <span class="p">A number, starting at 0 for the left edge of the</span></p><p style="padding-left: 239pt;text-indent: 0pt;text-align: left;">sourcebitmap, that tells <span class="s3">BITBLT </span>where to start moving pixels from the sourcebitmap. For example, if the leftmost 10 pixels of sourcebitmap were not to be moved, sourceleft should be 10. The default value is 0.</p><p class="s3" style="padding-top: 7pt;padding-left: 107pt;text-indent: 0pt;text-align: left;">sourcebottom <span class="p">A number, starting at 0 for the bottom edge of the</span></p><p style="padding-left: 239pt;text-indent: 0pt;text-align: left;">sourcebitmap, that tells <span class="s3">BITBLT </span>where to start moving pixels from the sourcebitmap. For example, if the bottom 10 rows of pixels of sourcebitmap were not to be moved, sourcebottom should be 10 The default value is 0.</p><p class="s3" style="padding-top: 7pt;padding-left: 107pt;text-indent: 0pt;text-align: left;">destinationbitmap <span class="p">The bitmap that will receive the sourcebitmap. This is</span></p><p style="padding-left: 239pt;text-indent: 0pt;text-align: left;">often a window (actually the bitmap of a window, but Interlisp-D takes care of that for you).</p><p class="s3" style="padding-top: 7pt;padding-left: 107pt;text-indent: 0pt;text-align: left;">destinationleft <span class="p">A number, starting at 0 for the left edge of the</span></p><p style="padding-left: 239pt;text-indent: 0pt;line-height: 107%;text-align: left;">destinationbitmap, that tells <span class="s3">BITBLT </span>where to start placing pixels from the sourcebitmap. For example, to place the</p><p style="padding-left: 239pt;text-indent: 0pt;text-align: left;">sourcebitmap 10 pixels in from the left, destinationleft should be 10. The default value is 0.</p><p style="text-indent: 0pt;text-align: left;"><br/></p><p class="s3" style="padding-top: 4pt;padding-left: 107pt;text-indent: 0pt;text-align: left;">destinationbottom <span class="p">A number, starting at 0 for the bottom edge of the</span></p><p style="padding-left: 239pt;text-indent: 0pt;line-height: 107%;text-align: left;">destinationbitmap, that tells <span class="s3">BITBLT </span>where to start placing pixels from the sourcebitmap. For example, to place the</p><p style="padding-left: 239pt;text-indent: 0pt;line-height: 11pt;text-align: left;">sourcebitmap 10 pixels up from the bottom,</p><p style="padding-left: 239pt;text-indent: 0pt;text-align: left;">destinationbottom should be 10. The default value is 0.</p><p class="s3" style="padding-top: 7pt;padding-left: 239pt;text-indent: -132pt;line-height: 107%;text-align: left;">width <span class="p">How many pixels in each row of sourcebitmap should be moved. The samc amount of space is used in</span></p><p style="padding-left: 239pt;text-indent: 0pt;line-height: 11pt;text-align: left;">destinationbitmap to receive the sourcebitmap. If this</p><p style="padding-left: 239pt;text-indent: 0pt;line-height: 107%;text-align: left;">argument is <span class="s3">NIL</span>, it defaults to the number of pixels from sourceleft to the end of the row of sourcebitmap.</p><p class="s3" style="padding-top: 6pt;padding-left: 107pt;text-indent: 0pt;text-align: left;">height <span class="p">How many rows of pixels of sourcebitmap should be moved.</span></p><p style="padding-left: 239pt;text-indent: 0pt;text-align: left;">The same amount of space is used in destinationbitmap to receive the sourcebitmap. If this argument is <span class="s3">NIL</span>, it</p><p style="padding-left: 239pt;text-indent: 0pt;text-align: left;">defaults to the number of rows from sourcebottom to the top of the sourcebitmap.</p><p class="s3" style="padding-top: 7pt;padding-left: 107pt;text-indent: 0pt;text-align: left;">sourcetype <span class="p">Refers to one of three ways to convert the sourcebitmap for</span></p><p style="padding-left: 239pt;text-indent: 0pt;text-align: left;">writing. For now, just use <span class="s3">’INPUT</span>.</p><p class="s3" style="padding-top: 7pt;padding-left: 239pt;text-indent: -132pt;line-height: 107%;text-align: justify;">operation <span class="p">Refers to how the sourtebitmap gets </span>BITBLT <span class="p">’d on to the destinationbitmap. </span>’REPLACE <span class="p">will </span>BLT <span class="p">the exact</span></p><p style="padding-left: 239pt;text-indent: 0pt;line-height: 107%;text-align: justify;">sourcebitmap. Other operations allow you to <span class="s3">AND</span>, <span class="s3">OR </span>or <span class="s3">XOR </span>the bits from the sourcebitmap onto the bits on the destinationbitmap.</p><p class="s3" style="padding-top: 6pt;padding-left: 107pt;text-indent: 0pt;text-align: left;">texture <span class="p">J ust use </span>NIL <span class="p">for now.</span></p><p class="s3" style="padding-top: 7pt;padding-left: 106pt;text-indent: 0pt;text-align: left;">clippingregion <span class="p">J ust use </span>NIL <span class="p">for now.</span></p><p style="text-indent: 0pt;text-align: left;"><br/></p><p style="padding-left: 107pt;text-indent: 0pt;text-align: left;">For more information on these operations, see Chapter 27 in the <i>IRM</i>.</p><p class="nav">&nbsp;&nbsp;</p><p class="nav">&nbsp;</p><p class="nav"><a href="part16.htm">&lt; Previous</a><span> | </span><a href="../Medley-Primer.html">Contents</a><span> | </span><a href="part18.htm">Next &gt;</a></p><p class="nav">&nbsp;&nbsp;</p></body></html>
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-<!DOCTYPE  html PUBLIC "-//W3C//DTD XHTML 1.0 Transitional//EN" "http://www.w3.org/TR/xhtml1/DTD/xhtml1-transitional.dtd">
-<html xmlns="http://www.w3.org/1999/xhtml"><head><meta http-equiv="Content-Type" content="text/html; charset=utf-8"/><title>15-DISPLAYSTREAMS</title><link href="navigation.css" rel="stylesheet" type="text/css"/><link href="document.css" rel="stylesheet" type="text/css"/></head><body><p class="top_nav"><a href="part17.htm">&lt; Previous</a><span> | </span><a href="../Medley-Primer.html">Contents</a><span> | </span><a href="part19.htm">Next &gt;</a></p><h1 style="padding-top: 3pt;padding-left: 35pt;text-indent: 0pt;text-align: left;"><a name="bookmark17">15. DISPLAYSTREAMS</a></h1><p style="padding-left: 35pt;text-indent: 0pt;line-height: 6pt;text-align: left;"><span><img width="640" height="8" alt="image" src="Image_099.png"/></span></p><p style="text-indent: 0pt;text-align: left;"><br/></p><p style="padding-top: 15pt;padding-left: 107pt;text-indent: 0pt;text-align: left;">A displaystream is a genera Jized &quot;place to display&quot;. They determine exactly what is displayed where. One example of a displaystream is a window. Windows are the only</p><p style="padding-left: 107pt;text-indent: 0pt;text-align: left;">displaystreams that will be used in this chapter. If you want to draw on a bitmap that is not a window, other than with BITBLT, or want to use other types of displaystreams, please refer to Chapter 27 in the <i>IRM</i>.</p><p style="text-indent: 0pt;text-align: left;"><br/></p><p style="padding-left: 107pt;text-indent: 0pt;line-height: 107%;text-align: left;">This chapter explains functions for drawing on displaystreams: <span class="s3">DRAWLINE </span>, <span class="s3">DRAWTO</span>, <span class="s3">DRAWCIRCLE</span>., and <span class="s3">FILLCIRCLE</span>. In addition, functions for locating and changIng your curreAt position in the displaystream are covered: <span class="s3">DSPXPOSITION </span>, <span class="s3">DSPYPOSITION</span>, and <span class="s3">MOVETO</span>.</p><p style="text-indent: 0pt;text-align: left;"><br/></p><h2 style="padding-left: 35pt;text-indent: 0pt;text-align: left;">Drawing on a Displaystream                                                                           </h2><p style="text-indent: 0pt;text-align: left;"><br/></p><p style="padding-top: 4pt;padding-left: 107pt;text-indent: 0pt;text-align: left;">The examples belowshow you how the functions for drawing on a display stream work. First, create a window. Windows are displaystreams, and the one you create are used for the examples in this chapter. Type:</p><p class="s3" style="padding-top: 6pt;padding-left: 143pt;text-indent: 0pt;text-align: left;">(SETQ EXAMPLE.WINDOW (CREATEW))</p><p style="text-indent: 0pt;text-align: left;"><br/></p><h4 style="padding-left: 71pt;text-indent: 0pt;text-align: left;">DRAWLlNE</h4><p style="text-indent: 0pt;text-align: left;"><br/></p><p class="s3" style="padding-left: 107pt;text-indent: 0pt;text-align: left;">DRAWLINE <span class="p">draws a line in a displaystream. For example, type:</span></p><p class="s3" style="padding-top: 7pt;padding-left: 143pt;text-indent: 0pt;text-align: left;">(DRAWLINE 10 15 100 150 5 ’INVERT EXAMPLE.WINDOW)</p><p style="padding-top: 7pt;padding-bottom: 2pt;padding-left: 107pt;text-indent: 0pt;text-align: left;">The results should look like Figure 15-1:</p><p style="padding-left: 168pt;text-indent: 0pt;text-align: left;"><span><img width="316" height="240" alt="image" src="Image_100.gif"/></span></p><p style="padding-top: 5pt;padding-left: 107pt;text-indent: 48pt;line-height: 164%;text-align: left;">Figure 15-1. Line Drawn onto the <span class="s3">EXAMPLE.WINDOW </span>Displayrtream The syntax of <span class="s3">DRAWLINE </span>is</p><p class="s3" style="padding-top: 1pt;text-indent: 0pt;text-align: right;">(DRAWLINE <span class="s4">x1 y1 x2 y2 width operation stream color dashing</span>)</p><p style="padding-top: 7pt;text-indent: 0pt;text-align: right;">The coordinates of the left bottom corner of the displaystream are 0 0.</p><p style="text-indent: 0pt;text-align: left;"><br/></p><p style="padding-top: 4pt;padding-left: 107pt;text-indent: 0pt;line-height: 165%;text-align: left;">xl and yl x and y coordinates of the beginning of the line x2andy2 ending coordinates of the line</p><p style="padding-left: 107pt;text-indent: 0pt;text-align: left;">width width of the line, in pixels</p><p style="padding-top: 7pt;padding-left: 179pt;text-indent: -72pt;line-height: 106%;text-align: left;">operation way the line is to be drawn. <span class="s3">INVERT </span>causes the line to invert the bits that are already in the displaystream. Drawing a line the second time using <span class="s3">INVERT </span>erases the line. For other operations, see Chapter 27 in the <i>IRM.</i></p><p style="padding-top: 7pt;padding-left: 107pt;text-indent: 0pt;text-align: left;">stream displaystream. In this case, you used a window.</p><p style="text-indent: 0pt;text-align: left;"><br/></p><h4 style="padding-left: 70pt;text-indent: 0pt;text-align: left;">DRAWTO</h4><p style="text-indent: 0pt;text-align: left;"><br/></p><p class="s3" style="padding-left: 107pt;text-indent: 0pt;line-height: 107%;text-align: left;">DRAWTO <span class="p">draws a line that begins at your current position in the displaystream. For example, type:</span></p><p class="s3" style="padding-top: 6pt;padding-left: 142pt;text-indent: 0pt;text-align: left;">(DRAWTO 120 135 5 ’INVERT EXAMPLE.WINDOW)</p><p style="padding-top: 7pt;padding-left: 107pt;text-indent: 0pt;text-align: left;">The results should look like Figure 15-2:</p><p style="text-indent: 0pt;text-align: left;"><br/></p><p style="padding-left: 170pt;text-indent: 0pt;text-align: left;"><span><img width="316" height="240" alt="image" src="Image_101.gif"/></span></p><p style="padding-top: 8pt;padding-left: 107pt;text-indent: 28pt;line-height: 188%;text-align: left;">Figure 15-2. Another Line drawn onto the <span class="s3">EXAMPLE.WINDOW </span>Displaystream The syntax of <span class="s3">DRAWTO </span>is</p><p class="s3" style="padding-left: 143pt;text-indent: 0pt;line-height: 11pt;text-align: left;">(DRAWTO <span class="s4">x y width operation stream color dashing</span>)</p><p style="text-indent: 0pt;text-align: left;"><br/></p><p style="padding-left: 107pt;text-indent: 0pt;line-height: 165%;text-align: left;">The line begins at the current position in the displaystream. x x coordinate of the end of the line</p><p style="padding-left: 107pt;text-indent: 0pt;text-align: left;">y y coordinate of the end of the line</p><p style="padding-top: 7pt;padding-left: 107pt;text-indent: 0pt;text-align: left;">width width of the line</p><p style="padding-top: 7pt;padding-left: 179pt;text-indent: -72pt;line-height: 106%;text-align: left;">operation way the lino is to be drawn. <span class="s3">INVERT </span>causes the line to invert the bits that aro already in tho displaystream. Drawing a line the second time using <span class="s3">INVERT </span>erases the line. For other operations, see Chapter 27 in the <i>IRM</i></p><p style="padding-top: 7pt;padding-left: 107pt;text-indent: 0pt;text-align: left;">stream displaystreom. In this case. you used a window.</p><p style="text-indent: 0pt;text-align: left;"><br/></p><h4 style="padding-top: 4pt;padding-left: 71pt;text-indent: 0pt;text-align: left;">DRAWClRCLE</h4><p style="text-indent: 0pt;text-align: left;"><br/></p><p class="s3" style="padding-left: 107pt;text-indent: 0pt;text-align: left;">DRAWCIRCLE <span class="p">draws a circle on a displaystream. To use it, type:</span></p><p class="s3" style="padding-top: 7pt;padding-left: 143pt;text-indent: 0pt;text-align: left;">(DRAWCIRCLE 150 100 30 ’(VERTICAL 5) NIL EXAMPLE.WINDOW<span class="p">)</span></p><p style="padding-top: 7pt;padding-left: 107pt;text-indent: 0pt;text-align: left;">Now your window, <span class="s3">EXAMPLE.WlNDOW</span>, should look like Figure 15-3:</p><p style="text-indent: 0pt;text-align: left;"><br/></p><p style="padding-left: 192pt;text-indent: 0pt;text-align: left;"><span><img width="316" height="240" alt="image" src="Image_102.gif"/></span></p><p style="padding-top: 10pt;padding-left: 107pt;text-indent: 44pt;line-height: 164%;text-align: left;">Figure 15-3. Circle Drawn onto the <span class="s3">EXAMPLE.WlNDOW </span>Displaystream The syntax of <span class="s3">DRAWCIRCLE </span>is</p><p style="padding-top: 1pt;padding-left: 107pt;text-indent: 36pt;line-height: 164%;text-align: left;">(<span class="s3">DRAWCIRCLE </span><i>centerx centery radius brush dashing stream</i>) centerx x coordinate of the center of the circle</p><p style="padding-left: 107pt;text-indent: 0pt;line-height: 165%;text-align: left;">centery coordinate of the center of the circle radius radius of the circle in pixels</p><p style="padding-left: 107pt;text-indent: 0pt;text-align: left;">brush list.- The first- item of the list is the shape of the brush. Some of your</p><p style="padding-left: 179pt;text-indent: 0pt;line-height: 107%;text-align: left;">options include <span class="s3">ROUND</span>, <span class="s3">SQUARE</span>, and <span class="s3">VERTICAL</span>. The second item of that list is the width of the brush in pixels.</p><p style="padding-top: 6pt;padding-left: 107pt;text-indent: 0pt;text-align: left;">dashing list of positive integers. The brush is &quot;on&quot; for the number of units</p><p style="padding-left: 179pt;text-indent: 0pt;text-align: left;">indicated by the first element of the list, &quot;off&quot; for the number of units</p><p style="padding-left: 179pt;text-indent: 0pt;text-align: left;">indicated by the second element of the list. The third element specifies how long it will be on again, and so forth. The sequence is repeated until the circle has been drawn.</p><p style="padding-top: 7pt;padding-left: 107pt;text-indent: 0pt;text-align: left;">stream displaystream. In this case, you used a window.</p><p style="text-indent: 0pt;text-align: left;"><br/></p><h4 style="padding-left: 71pt;text-indent: 0pt;text-align: left;">FlLLClRCLE</h4><p style="text-indent: 0pt;text-align: left;"><br/></p><p class="s3" style="padding-left: 107pt;text-indent: 0pt;text-align: left;">FILLCIRCLE <span class="p">draws a filled circle on a displaystream. To use it, type:</span></p><p class="s3" style="padding-top: 7pt;padding-left: 143pt;text-indent: 0pt;text-align: left;">(FILLCIRCLE 200 150 10 GRAYSHADE EXAMPLE.WINDOW)</p><p class="s3" style="padding-top: 7pt;padding-left: 107pt;text-indent: 0pt;text-align: left;">EXAMPLE.WlNDOW <span class="p">now looks like Figure 15-4:</span></p><p style="text-indent: 0pt;text-align: left;"><br/></p><p style="padding-left: 168pt;text-indent: 0pt;text-align: left;"><span><img width="316" height="240" alt="image" src="Image_103.gif"/></span></p><p style="text-indent: 0pt;text-align: left;"><br/></p><p style="padding-top: 4pt;padding-left: 107pt;text-indent: 73pt;line-height: 165%;text-align: left;">Figure 15-4. A filled circle drawn onto the displaystream The syntax of <span class="s3">FILLCIRCLE </span>is:</p><p style="padding-left: 107pt;text-indent: 36pt;line-height: 164%;text-align: left;">(<span class="s3">FILLCIRCLE </span><i>centerx centery radius texture stream</i>) centerx x coordinate of the center of the circle</p><p style="padding-left: 107pt;text-indent: 0pt;line-height: 165%;text-align: left;">centery y coordinate of the center of the ci rcle radius radius of the circle in pixels</p><p style="padding-left: 107pt;text-indent: 0pt;text-align: left;">texture shade that will be used to fill in the circle. Interlisp-D provides you with</p><p style="padding-left: 179pt;text-indent: 0pt;line-height: 107%;text-align: left;">three shades: <span class="s3">WHlTESHADE </span>, <span class="s3">BLACKSHADE</span>, and <span class="s3">GRAYSHADE</span>. You can also create your own shades. For more information on how to do this, see</p><p style="padding-left: 179pt;text-indent: 0pt;line-height: 11pt;text-align: left;">Chapter 27 in the <i>IRM</i>.</p><p style="padding-top: 7pt;padding-left: 107pt;text-indent: 0pt;text-align: left;">stream displaystream. In this case, you used a window</p><p style="padding-top: 7pt;padding-left: 107pt;text-indent: 0pt;text-align: left;">There are many other functions for drawing on a displaystream. Please refer to Chapter 27 in the <i>IRM</i>.</p><p style="padding-top: 7pt;padding-left: 107pt;text-indent: 0pt;line-height: 106%;text-align: left;">Text can also be placed into displaystreams. To do this, use printing functions such as <span class="s3">PRIN1 </span>and <span class="s3">PRIN2</span>, but supply the name of the displaystream as the &quot;file&quot; to print to. To place the text in the proper position in the displaystream, see the section below.</p><p style="text-indent: 0pt;text-align: left;"><br/></p><h2 style="padding-left: 35pt;text-indent: 0pt;text-align: left;">Locating and Changing Your Position in a Displaystream                          </h2><p style="text-indent: 0pt;text-align: left;"><br/></p><p style="padding-top: 4pt;padding-left: 107pt;text-indent: 0pt;text-align: left;">There are functions provided to locate, and to change your current position in a</p><p style="padding-left: 107pt;text-indent: 0pt;text-align: left;">displayitream. This can help you place text, and other images where you want them in</p><p style="padding-left: 107pt;text-indent: 0pt;text-align: left;">a displaystream. This primer will only discuss three of these. There are others, and they can be foun d in the Chapter 27 of the <i>IRM</i>.</p><p style="text-indent: 0pt;text-align: left;"><br/></p><h4 style="padding-left: 71pt;text-indent: 0pt;text-align: left;">DSPXPOSlTlON</h4><p class="s3" style="padding-top: 8pt;padding-left: 107pt;text-indent: 0pt;text-align: left;">DSPXPOSITION <span class="p">is a function that will either change the current x position in a</span></p><p style="padding-left: 107pt;text-indent: 0pt;text-align: left;">displaystream, or simply report it. To have the function report the current x position in</p><p class="s3" style="padding-left: 107pt;text-indent: 0pt;text-align: left;">EXAMPLE.WlNDOW<span class="p">, type:</span></p><p class="s3" style="padding-top: 7pt;padding-left: 143pt;text-indent: 0pt;text-align: left;">(DSPXPOSITION NIL EXAMPLE.WINDOW)</p><p style="text-indent: 0pt;text-align: left;"><br/></p><p class="s3" style="padding-top: 4pt;padding-left: 107pt;text-indent: 0pt;line-height: 107%;text-align: left;">DSPXPOSITION <span class="p">expects two arguments. The first is the new x position. If this argument is </span>NIL<span class="p">, the current position is not changed, merely reported. The second argument is</span></p><p style="padding-left: 107pt;text-indent: 0pt;text-align: left;">the displaystream.</p><p style="text-indent: 0pt;text-align: left;"><br/></p><h4 style="padding-left: 71pt;text-indent: 0pt;text-align: left;">DSPYPOSlTlON</h4><p class="s3" style="padding-top: 8pt;padding-left: 107pt;text-indent: 0pt;text-align: left;">DSPYPOSITION <span class="p">is an analogous function, but It changes or reports the current y</span></p><p style="padding-left: 107pt;text-indent: 0pt;line-height: 106%;text-align: left;">position in a displaystream. As with <span class="s3">DSPXPOSlTlON </span>, if the first argument is a number, the current y position will be changed to that position. If it is <span class="s3">NIL</span>, the current position is simply reported. To have the function report the current y position in <span class="s3">EXAMPLE.WlNDOW</span>, type:</p><p class="s3" style="padding-top: 7pt;padding-left: 143pt;text-indent: 0pt;text-align: left;">(DSPYPOSITION NIL EXAMPLE.WlNDOW)</p><p style="text-indent: 0pt;text-align: left;"><br/></p><h4 style="padding-left: 71pt;text-indent: 0pt;text-align: left;">MOVETO</h4><p style="padding-top: 8pt;padding-left: 107pt;text-indent: 0pt;line-height: 107%;text-align: left;">The function <span class="s3">MOVETO </span>always changes your position in the displaystream. It expects three arguments:</p><p style="padding-top: 6pt;padding-left: 143pt;text-indent: 0pt;text-align: left;">(<span class="s3">MOVETO </span><i>x y stream</i>)</p><p style="text-indent: 0pt;text-align: left;"><br/></p><p style="padding-left: 107pt;text-indent: 0pt;text-align: left;">x new x position in the display stream</p><p style="padding-top: 7pt;padding-left: 107pt;text-indent: 0pt;text-align: left;">y new y position in the display stream</p><p style="padding-top: 7pt;padding-left: 107pt;text-indent: 0pt;text-align: left;">stream display stream. The examples so far have used a window</p><p class="nav">&nbsp;&nbsp;</p><p class="nav">&nbsp;</p><p class="nav"><a href="part17.htm">&lt; Previous</a><span> | </span><a href="../Medley-Primer.html">Contents</a><span> | </span><a href="part19.htm">Next &gt;</a></p><p class="nav">&nbsp;&nbsp;</p></body></html>
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-<html xmlns="http://www.w3.org/1999/xhtml"><head><meta http-equiv="Content-Type" content="text/html; charset=utf-8"/><title>16-FONTS</title><link href="navigation.css" rel="stylesheet" type="text/css"/><link href="document.css" rel="stylesheet" type="text/css"/></head><body><p class="top_nav"><a href="part18.htm">&lt; Previous</a><span> | </span><a href="../Medley-Primer.html">Contents</a><span> | </span><a href="part20.htm">Next &gt;</a></p><h1 style="padding-top: 3pt;padding-left: 35pt;text-indent: 0pt;text-align: left;"><a name="bookmark18">16. FONTS</a></h1><p style="padding-left: 35pt;text-indent: 0pt;line-height: 6pt;text-align: left;"><span><img width="640" height="8" alt="image" src="Image_104.png"/></span></p><p style="text-indent: 0pt;text-align: left;"><br/></p><p style="padding-top: 15pt;padding-left: 107pt;text-indent: 0pt;text-align: left;">This chapter explains font s and font descriptors, what they are and how to use them, so that you can use functions requiring font descriptors</p><p style="padding-top: 7pt;padding-left: 107pt;text-indent: 0pt;text-align: left;">You have already been exposed to many font s in Medley. For example, when you use the structure editor, DEdit (see the Using the List Structure Editor section of Chapter 7), you noticed that the comments were printed in a smaller font than the code, and</p><p style="padding-left: 107pt;text-indent: 0pt;text-align: left;">that CLlSP words (see the CLISP section of Chapter 9) were printed in a darker font</p><p style="padding-left: 107pt;text-indent: 0pt;text-align: left;">than the other words in the function. These are only some of the font s that are available in Medley.</p><p style="padding-top: 7pt;padding-left: 106pt;text-indent: 0pt;text-align: left;">In addition to the font s that appear on your screen, Medley uses font s for printers that are different than the ones used for the screen. The font s used to print to the screen are called <span class="s3">DlSPLAYFONTS</span>. The font s used for prining are called <span class="s3">INTERPRESSFONTS </span>, or <span class="s3">PRESSFONTS</span>, depending on the type of printer.</p><p style="text-indent: 0pt;text-align: left;"><br/></p><h2 style="padding-left: 35pt;text-indent: 0pt;text-align: left;">What Makes Up a Font                                                                                     </h2><p style="text-indent: 0pt;text-align: left;"><br/></p><p style="padding-top: 4pt;padding-left: 107pt;text-indent: 0pt;text-align: left;">Fonts are described by family, weight, slope, width, and size. This section discusses each of these, and describes how they affect the font you see on the screen.</p><p style="padding-top: 7pt;padding-left: 107pt;text-indent: 0pt;text-align: justify;">Family is one way that font s can differ. Here are some examples of how &quot;family&quot; affect s the look of a font:</p><p class="s3" style="padding-top: 7pt;padding-left: 107pt;text-indent: 0pt;line-height: 164%;text-align: justify;">CLASSIC <span class="p">This family makes the word &quot;Able&quot; look like this: Able </span>MODERN <span class="p">This family makes the word &quot;Able&quot; look like this: </span><span class="s6">Able </span>TITAN <span class="p">This family makes the word &quot;Able&quot; look like this: </span>Able</p><p style="padding-top: 1pt;padding-left: 107pt;text-indent: 0pt;text-align: justify;">Weight also determines the look of a font. Once again, &quot;Able&quot; will be used as an example, this time only with the Classic family. A font’s weight can be:</p><p class="s3" style="padding-top: 7pt;padding-left: 107pt;text-indent: 0pt;text-align: justify;">BOLD <span class="p">And look like this: </span><span class="s10">Able</span></p><p class="s3" style="padding-top: 8pt;padding-left: 107pt;text-indent: 0pt;text-align: left;">MEDIUM</p><p style="padding-left: 107pt;text-indent: 0pt;text-align: left;">or <span class="s3">REGULAR </span>And look like this: Able</p><p style="padding-top: 7pt;padding-left: 107pt;text-indent: 0pt;text-align: justify;">The slope of a font is italic or regular. Using the Classic family font again, in a regular weight, the slope affect s the font like this:</p><p class="s3" style="padding-top: 7pt;padding-left: 107pt;text-indent: 0pt;text-align: left;">ITALIC <span class="p">Looks like this: </span><span class="s4">Able</span></p><p class="s3" style="padding-top: 7pt;padding-left: 107pt;text-indent: 0pt;text-align: left;">REGULAR <span class="p">Looks like this: Able</span></p><p style="padding-top: 7pt;padding-left: 107pt;text-indent: 0pt;text-align: justify;">The width of a font is called its &quot;expansion&quot;. It can be <span class="s3">COMPRESSED </span>, <span class="s3">REGULAR</span>, or</p><p class="s3" style="padding-left: 107pt;text-indent: 0pt;text-align: left;">EXPANDED<span class="p">.</span></p><p style="padding-top: 7pt;padding-left: 107pt;text-indent: 0pt;text-align: left;">Together, the weight, slope, and expansion of a font specifies the font’s &quot;face&quot;. Specifically, the face of a font is a three element list:</p><p style="padding-top: 7pt;padding-left: 143pt;text-indent: 0pt;text-align: left;">(weight slope expansion)</p><p style="padding-top: 7pt;padding-left: 107pt;text-indent: 0pt;text-align: justify;">To make it easier to type, when a function requires a font face as an argument, it can be abbreviated with a three-character atom. The first specifies the weight, the second the</p><p style="text-indent: 0pt;text-align: left;"><br/></p><p style="padding-top: 4pt;padding-left: 107pt;text-indent: 0pt;text-align: left;">slope, and the third character the expansion. For example, some common font faces are abbreviated:</p><p class="s3" style="padding-top: 7pt;padding-left: 107pt;text-indent: 0pt;text-align: left;">MRR <span class="p">This is the usual face, </span>MEDIUM<span class="p">, </span>REGULAR<span class="p">, </span>REGULAR</p><p class="s3" style="padding-top: 7pt;padding-left: 107pt;text-indent: 0pt;text-align: left;">MIR <span class="p">Makes an italic font. It stands for: </span>MEDIUM <span class="p">, </span>ITALIC<span class="p">, </span>REGULAR</p><p class="s3" style="padding-left: 107pt;text-indent: 0pt;line-height: 20pt;text-align: left;">BRR <span class="p">Makes a bold font. The abbreviation means: </span>BOLD<span class="p">, </span>REGULAR <span class="p">, </span>REGULAR BIR <span class="p">Means that the font should be both bold and italic. </span>BIR <span class="p">stands for </span>BOLD<span class="p">,</span></p><p class="s3" style="padding-top: 1pt;padding-left: 179pt;text-indent: 0pt;text-align: left;">ITALIC<span class="p">, </span>REGULAR</p><p style="padding-top: 7pt;padding-left: 107pt;text-indent: 0pt;text-align: left;">The above examples are used so oflen, that there are also more mnemonic abbreviations for them. They can also be used to specify a font face for a function that requires a face as an argument. They are:</p><p style="text-indent: 0pt;text-align: left;"><br/></p><p class="s3" style="padding-left: 179pt;text-indent: -72pt;line-height: 107%;text-align: left;">STANDARD <span class="p">This is the usual face: </span>MEDIUM<span class="p">, </span>REGULAR<span class="p">, </span>REGULAR<span class="p">; it was abbreviated above, </span>MRR</p><p class="s3" style="padding-top: 7pt;padding-left: 107pt;text-indent: 0pt;text-align: left;">ITALIC <span class="p">This was abbreviated above as </span>MIR<span class="p">, and specifies an italic font</span></p><p class="s3" style="padding-top: 7pt;padding-left: 107pt;text-indent: 0pt;text-align: left;">BOLD <span class="p">Makes a bold font; it was abbreviated above, </span>BRR</p><p class="s3" style="padding-top: 7pt;padding-left: 179pt;text-indent: -72pt;line-height: 107%;text-align: left;">BOLDITALIC <span class="p">Makes a font both bold and italic: </span>BOLD<span class="p">, </span>ITALIC <span class="p">, </span>REGULAR<span class="p">; it was abbreviated above, </span>BIR</p><p style="padding-top: 7pt;padding-left: 107pt;text-indent: 0pt;text-align: left;">A font also has a size. It is a positive integer that specifies the height of the font in</p><p style="padding-left: 107pt;text-indent: 0pt;text-align: left;">printers points. A point is, on an 1108 screen, about 1/72 of an inch. On the screen of an 1186, a point is 1/80 of an inch. The size of the font used in this chapter is 10. For</p><p style="padding-left: 107pt;text-indent: 0pt;line-height: 13pt;text-align: left;">comparison, here is an example of a <span class="s3">TITAN</span>, <span class="s3">MRR</span>, size 12 font: <span class="s12">Able</span>.</p><p style="text-indent: 0pt;text-align: left;"><br/></p><h2 style="padding-top: 10pt;padding-left: 35pt;text-indent: 0pt;text-align: left;">Fontdescriptors and FONTCREATE                                                               </h2><p style="padding-top: 9pt;padding-left: 107pt;text-indent: 0pt;text-align: left;">For Medley to use a font, it must have a font descriptor. A font descriptor is a data type in Interlisp-D that that holds all the information needed in order to use a particular font. When you print out a font descriptor, it looks like this:</p><p class="s3" style="padding-top: 6pt;padding-left: 143pt;text-indent: 0pt;text-align: left;">{FONTDESCRIPTOR}#74,45540</p><p style="padding-top: 7pt;padding-left: 107pt;text-indent: 0pt;text-align: left;">Fontdescriptors are created by the function <span class="s3">FONTCREATE </span>. For example,</p><p class="s3" style="padding-top: 7pt;padding-left: 143pt;text-indent: 0pt;text-align: left;">(FONTCREATE ’HELVETICA 12 ’BOLD)</p><p style="padding-top: 7pt;padding-left: 107pt;text-indent: 0pt;line-height: 107%;text-align: left;">creates a font descriptor that, when used by other functions, prints in <span class="s3">HELVETICA BOLD size 12</span>. Interlisp-D functions that work with font s expect a font descriptor produced</p><p style="padding-left: 107pt;text-indent: 0pt;line-height: 164%;text-align: left;">with the <span class="s3">FONTCREATE </span>function. The syntax of <span class="s3">FONTCREATE </span>is:</p><p class="s3" style="padding-top: 1pt;padding-left: 143pt;text-indent: 0pt;text-align: left;">(FONTCREATE <span class="s4">family size face</span><span class="p">)</span></p><p style="padding-top: 7pt;padding-left: 107pt;text-indent: 0pt;text-align: left;">Remember from the previous section, face is either a three element list (weight slope expansion), a three character atom abbreviation, e.g. <span class="s3">MRR</span>, or one of the mnemonic</p><p style="padding-left: 107pt;text-indent: 0pt;text-align: left;">abbreviations, e.g. <span class="s3">STANDARD </span>.</p><p style="padding-top: 7pt;padding-left: 107pt;text-indent: 0pt;line-height: 107%;text-align: left;">If <span class="s3">FONTCREATE </span>is asked to create a font descriptor that a J ready exists, the existing font descriptor is simply returned.</p><p style="text-indent: 0pt;text-align: left;"><br/></p><h2 style="padding-top: 4pt;padding-left: 35pt;text-indent: 0pt;text-align: left;">Display Fonts                                                                                                    </h2><p style="padding-top: 9pt;padding-left: 107pt;text-indent: 0pt;text-align: left;">Display font s require files that contain the bitmaps used to print each character on the screen. All of these files have the extension <span class="s3">.DlSPLAYFONT </span>. The file name itself</p><p style="padding-left: 107pt;text-indent: 0pt;text-align: left;">describes the font style and size that uses its bitmaps. For example:</p><p class="s3" style="padding-top: 7pt;padding-left: 143pt;text-indent: 0pt;text-align: left;">MODERN12.DISPLAYFONT</p><p style="padding-top: 7pt;padding-left: 107pt;text-indent: 0pt;text-align: left;">contains bitmaps for the font family <span class="s3">MODERN </span>in size 12 points. Wherever you put your</p><p class="s3" style="padding-left: 106pt;text-indent: 0pt;line-height: 107%;text-align: left;">.DISPLAYFONT <span class="p">files, you should make this one of the values of the variable </span>DISPLAYFONTDIRECTORIES<span class="p">. Its value is a list of directories to search for the bitmap files for display font s. Usually, it contains the &quot;</span>FONT<span class="p">&quot; directory where you copied the bitmap files, and the current connected directory. The current connected directory is</span></p><p style="padding-left: 107pt;text-indent: 0pt;line-height: 107%;text-align: left;">specified by the atom <span class="s3">NIL</span>. When looking for a <span class="s3">.DISPLAYFONT </span>file, the system checks the <span class="s3">FONT </span>directory on the hard disk, then the current connected directory.</p><p style="padding-top: 7pt;padding-left: 107pt;text-indent: 0pt;text-align: left;">Figure 16-1 shows an example value of <span class="s3">DISPLAYFONTDIRECTORIES </span>:</p><p style="text-indent: 0pt;text-align: left;"><br/></p><p style="padding-left: 175pt;text-indent: 0pt;text-align: left;"><span><img width="367" height="314" alt="image" src="Image_105.gif"/></span></p><p style="text-indent: 0pt;text-align: left;"><br/></p><p style="padding-left: 170pt;text-indent: 0pt;text-align: left;">Figure 16-1. Value for the Atom <span class="s3">DISFLAYFONTDIRECTORIES</span></p><p style="text-indent: 0pt;text-align: left;"><br/></p><h2 style="padding-left: 35pt;text-indent: 0pt;text-align: left;">InterPress Fonts                                                                                               </h2><p style="padding-top: 9pt;padding-left: 107pt;text-indent: 0pt;text-align: left;">InterPress is the format that is used by Xerox laser printers. These printers normally have a resolution that is much higher than that of the screen: 300 points per inch.</p><p style="padding-top: 7pt;padding-left: 107pt;text-indent: 0pt;text-align: left;">To format files appropriately for output on such a printer, Interlisp must know the</p><p style="padding-left: 106pt;text-indent: 0pt;text-align: left;">actual size for each character that is to be printed. This is done through the use of width files that contain font width information for font s in InterPress format. For InterPress font s, you should make the location of these files one of the values of the variable <span class="s3">INTERPRESSFONTDIRECTORIES</span>. Its value is a list of directories to search for the font widths files for InterPress font s. Figure 16-2 is an example value of <span class="s3">INTERPRESSFONTDIRECTORIES</span>:</p><p style="text-indent: 0pt;text-align: left;"><br/></p><p style="text-indent: 0pt;text-align: left;"><br/></p><p style="padding-left: 173pt;text-indent: 0pt;text-align: left;"><span><img width="367" height="314" alt="image" src="Image_106.gif"/></span></p><p style="text-indent: 0pt;text-align: left;"><br/></p><p style="padding-top: 4pt;padding-left: 170pt;text-indent: 0pt;text-align: left;">Figure 16-2. Value for Atom <span class="s3">INTERPRESSFONTDIRECTORIES</span></p><p style="text-indent: 0pt;text-align: left;"><br/></p><h2 style="padding-left: 35pt;text-indent: 0pt;text-align: left;">Functions for Using Fonts                                                                               </h2><p style="text-indent: 0pt;text-align: left;"><br/></p><h3 style="padding-top: 4pt;padding-left: 71pt;text-indent: 0pt;text-align: left;">FONTPR0P Looking at Font Properties</h3><p style="padding-top: 10pt;padding-left: 107pt;text-indent: 0pt;line-height: 106%;text-align: left;">It is possible to see the properties of a font descriptor. This s done with the function <span class="s3">FONTPROP</span>. For the following examples, the font descriptor used will be the one returned by the function <span class="s3">(DEFAULTFONT ’DISPLAY) </span>. In other words, the font descriptor</p><p style="padding-left: 107pt;text-indent: 0pt;text-align: left;">examined will be the default display font for the system.</p><p style="padding-top: 7pt;padding-left: 107pt;text-indent: 0pt;text-align: left;">There are many properties of a font that might be useful for you. Some of these are:</p><p style="text-indent: 0pt;text-align: left;"><br/></p><p class="s3" style="padding-left: 107pt;text-indent: 0pt;text-align: left;">FAMILY <span class="p">To see the family of a font descriptor, type:</span></p><p class="s3" style="padding-top: 7pt;padding-left: 179pt;text-indent: 0pt;text-align: left;">(FONTPROP (DEFAULTFONT ’DISPLAY) ’FAMILY)</p><p class="s3" style="padding-top: 7pt;padding-bottom: 1pt;padding-left: 179pt;text-indent: -72pt;line-height: 107%;text-align: left;">SIZE <span class="p">As above, this is a positive integer that determines the height of the font in printer’s points. As an example, the </span>SIZE <span class="p">of the current default font is:</span></p><p style="padding-left: 188pt;text-indent: 0pt;text-align: left;"><span><img width="333" height="99" alt="image" src="Image_107.gif"/></span></p><p style="text-indent: 0pt;text-align: left;"><br/></p><p style="padding-left: 177pt;text-indent: 0pt;text-align: left;">Figure 16-3. Value of Font Property <span class="s3">SIZE </span>of Default Font</p><p class="s3" style="padding-top: 7pt;padding-left: 107pt;text-indent: 0pt;text-align: left;">ASCENT <span class="p">The value of this property is a positive integer, the maximum height of</span></p><p style="padding-left: 179pt;text-indent: 0pt;text-align: left;">any character in the specified font from the baseline (bottom). The top of</p><p style="text-indent: 0pt;text-align: left;"><br/></p><p style="padding-top: 4pt;padding-left: 179pt;text-indent: 0pt;text-align: left;">the tallest character in the font, then, will be at <span class="s3">(BASELINE + ASCENT</span></p><p class="s3" style="padding-left: 179pt;text-indent: 0pt;text-align: left;">- l<span class="p">). For example, the </span>ASCENT <span class="p">of the default font is:</span></p><p style="text-indent: 0pt;text-align: left;"><br/></p><p style="padding-left: 190pt;text-indent: 0pt;text-align: left;"><span><img width="333" height="99" alt="image" src="Image_108.gif"/></span></p><p style="padding-top: 8pt;padding-left: 178pt;text-indent: 0pt;text-align: left;">Figure 16-4. Value Font Property <span class="s3">ASCENT </span>of Default Font</p><p class="s3" style="padding-top: 7pt;padding-left: 179pt;text-indent: -72pt;line-height: 107%;text-align: justify;">DESCENT <span class="p">The </span>DESCENT <span class="p">is an integer that specifies the maximum number of points that a character in the font descends below the baseline (e.g.,</span></p><p style="padding-left: 179pt;text-indent: 0pt;line-height: 106%;text-align: justify;">letters such as &quot;p&quot; and &quot;g&quot; have tails that descend below the baseline.). The bottom of the lowest character in the font will be at <span class="s3">(BASELINE - DESCENT)</span>. To see the <span class="s3">DESCENT </span>of the default font, type:</p><p class="s3" style="padding-top: 6pt;padding-left: 107pt;text-indent: 72pt;line-height: 170%;text-align: left;">(FONTPROP (DEFAULTFONT ’DISPLAY) ’DESCENT) HEIGHT HEIGHT <span class="p">is equal to </span>(DESCENT - ASCENT)<span class="p">.</span></p><p style="padding-left: 179pt;text-indent: -72pt;line-height: 106%;text-align: left;"><span class="s3">FACE </span>The value of this property is a list of the form (<i>weight slope expansion</i>). These are the weight, slope, and expansion described above. You can see each one separately, also. Use the property that you are interested in, <span class="s3">WEIGHT</span>, <span class="s3">SLOPE</span>, or <span class="s3">EXPANSION</span>, instead of <span class="s3">FACE </span>as the second argument to <span class="s3">FONTPROP</span>.</p><p style="padding-top: 7pt;padding-left: 107pt;text-indent: 0pt;text-align: left;">For other font properties, see Chapter 27 of the <i>IRM</i>.</p><p style="text-indent: 0pt;text-align: left;"><br/></p><h3 style="padding-left: 71pt;text-indent: 0pt;text-align: left;">STRlNGWlDTH</h3><p style="padding-top: 10pt;padding-left: 107pt;text-indent: 0pt;text-align: left;">It is often useful to see how much space is required to print an expression in a particular font. The function <span class="s3">STRINGWIDTH </span>does this. For example, type:</p><p class="s3" style="padding-top: 7pt;padding-left: 143pt;text-indent: 0pt;text-align: left;">(STRINGWIDTH &quot;Hi there!&quot; (FONTCREATE ’GACHA 10 ’STANDARD))</p><p style="padding-top: 7pt;padding-left: 107pt;text-indent: 0pt;text-align: left;">The number returned is how many left to right pixels would be needed if the string</p><p style="padding-left: 107pt;text-indent: 0pt;text-align: left;">were printed in this font. (Note that this doesn’t just work for pixels on the screen, but for all kinds of streams. For more information about streams, see Chapter 15.) Compare the number returned from the example call with the number returned when you change <span class="s3">GACHA </span>to <span class="s3">TIMESROMAN</span>.</p><p style="text-indent: 0pt;text-align: left;"><br/></p><h3 style="padding-left: 71pt;text-indent: 0pt;text-align: left;">DSPFONT - Changing the Font in One Window</h3><p style="padding-top: 10pt;padding-left: 107pt;text-indent: 0pt;line-height: 107%;text-align: left;">The function <span class="s3">DSPFONT </span>changes the font in a single window. As an example of its use, first create a window to write in. Type:</p><p class="s3" style="padding-top: 6pt;padding-left: 143pt;text-indent: 0pt;text-align: left;">(SETQ MY.FONT.WINDOW (CREATEW))</p><p style="padding-top: 7pt;padding-left: 107pt;text-indent: 0pt;text-align: left;">in the Executive Window. Sweep out the window. To print something in the default font, type:</p><p class="s3" style="padding-top: 6pt;padding-left: 143pt;text-indent: 0pt;text-align: left;">(PRINT ’HELLO MY.FONT.WINDOW)</p><p style="padding-top: 7pt;padding-left: 107pt;text-indent: 0pt;line-height: 107%;text-align: left;">in the Executive Window. Your window, <span class="s3">MY.FONT.WINDOW </span>, will look something like Figure 16-5:</p><p style="text-indent: 0pt;text-align: left;"><br/></p><p style="padding-left: 224pt;text-indent: 0pt;text-align: left;"><span><img width="230" height="172" alt="image" src="Image_109.gif"/></span></p><p style="padding-top: 7pt;padding-left: 145pt;text-indent: 0pt;text-align: left;">Figure 16-5. <span class="s3">HELLO</span>, Printed with the Default Font in <span class="s3">MY.FONT.WINDOW</span></p><p style="padding-top: 7pt;padding-left: 107pt;text-indent: 0pt;text-align: left;">Now change the font in the window. Type:</p><p class="s3" style="padding-top: 7pt;padding-left: 143pt;text-indent: 0pt;text-align: left;">(DSPFONT (FONTCREATE ’HELVETICA 12 ’BOLD) MY.FONT.WINDOW)</p><p style="padding-top: 7pt;padding-left: 107pt;text-indent: 0pt;line-height: 107%;text-align: left;">in the Executive Window. The arguments to <span class="s3">FONTCREATE </span>can be changed to create any desired font. Now retype the <span class="s3">PRINT </span>statement, and your window will look something</p><p style="padding-left: 107pt;text-indent: 0pt;text-align: left;">like Figure 16-6:</p><p style="text-indent: 0pt;text-align: left;"><br/></p><p style="padding-left: 193pt;text-indent: 0pt;text-align: left;"><span><img width="312" height="211" alt="image" src="Image_110.gif"/></span></p><p style="padding-top: 8pt;padding-left: 107pt;text-indent: 90pt;line-height: 164%;text-align: left;">Flgure 16-6. Font in <span class="s3">MY.FONT.WINDOW </span>Changed Notice the font has been changed.</p><p style="text-indent: 0pt;text-align: left;"><br/></p><h3 style="padding-left: 71pt;text-indent: 0pt;text-align: left;">Personalizing Your Font Profile</h3><p style="padding-top: 10pt;padding-left: 107pt;text-indent: 0pt;text-align: left;">Medley keeps a list of default font specifications. This list is used to set the font in all windows where the font is not specifically set by the user (see the <span class="s3">DSPFONT </span>section</p><p style="padding-left: 107pt;text-indent: 0pt;text-align: left;">above). The value of the atom <span class="s3">FONTPROFILE </span>is this list (see Figure 16-7).</p><p style="padding-top: 7pt;padding-left: 107pt;text-indent: 0pt;line-height: 107%;text-align: left;">A <span class="s3">FONTPROFILE </span>is a list of font descriptions that certain system functions access when printing output. It contains specifications for big font s (used when pretty printing a</p><p style="padding-left: 107pt;text-indent: 0pt;text-align: left;">function to type the function name), small font s (used for printing comments in the editor), and various other font s.</p><p style="text-indent: 0pt;text-align: left;"><br/></p><p style="padding-left: 196pt;text-indent: 0pt;text-align: left;"><span><img width="308" height="443" alt="image" src="Image_111.gif"/></span></p><p style="text-indent: 0pt;text-align: left;"><br/></p><p style="padding-top: 4pt;padding-left: 205pt;text-indent: 0pt;text-align: left;">Figure 16-7. Value of the Atom <span class="s3">FONTPROFILE</span></p><p style="text-indent: 0pt;text-align: left;"><br/></p><p style="padding-left: 107pt;text-indent: 0pt;line-height: 107%;text-align: left;">The list is in the form of an association list. The font class names (e.g., <span class="s3">DEFAULTFONT </span>, or <span class="s3">BOLDFONT</span>) are the keywords of the association list. When a number follows the</p><p style="padding-left: 107pt;text-indent: 0pt;text-align: left;">keyword, it is the font number for that font class.</p><p style="padding-top: 7pt;padding-left: 107pt;text-indent: 0pt;text-align: left;">The lists following the font class name or number are the font specifications, in a form that the function <span class="s3">FONTCREATE </span>can use. The first font specification list affer a keyword</p><p style="padding-left: 107pt;text-indent: 0pt;line-height: 107%;text-align: left;">is the specification for printing to windows. The list<span class="s3">(GACHA 10) </span>in the figure above is an example of the default specification for the printing to windows. The last two font</p><p style="padding-left: 107pt;text-indent: 0pt;text-align: left;">specification lists are for Press and InterPress file printing, respectively. For more information, see Chapter 27 in the <i>IRM</i>.</p><p style="padding-top: 6pt;padding-left: 107pt;text-indent: 0pt;line-height: 106%;text-align: left;">Now, to change your default font settings, change the value of the variable <span class="s3">FONTPROFILE</span>. Medley has a list of profiles stored as the value of the atom <span class="s3">FONTDEFS </span>. Choose the profile to use, then install it as the default <span class="s3">FONTPROFILE </span>.</p><p style="padding-top: 7pt;padding-left: 106pt;text-indent: 0pt;line-height: 107%;text-align: left;">Evaluate the atom <span class="s3">FONTDEFS </span>and notice that each profile list begins with a keyword (see Figure 16-8). This keyword corresponds to the size of the font s included. <span class="s3">BIG</span>, <span class="s3">SMALL</span>, and <span class="s3">STANDARD </span>are some of the keywords for profiles on this list—<span class="s3">SMALL </span>and <span class="s3">STANDARD </span>appear in Figure 16-8.</p><p style="text-indent: 0pt;text-align: left;"><br/></p><p style="text-indent: 0pt;text-align: left;"><br/></p><p style="padding-left: 173pt;text-indent: 0pt;text-align: left;"><span><img width="367" height="202" alt="image" src="Image_112.gif"/></span></p><p style="text-indent: 0pt;text-align: left;"><br/></p><p style="padding-top: 4pt;padding-left: 197pt;text-indent: 0pt;text-align: left;">Figure 16-8. Part of Value of the Atom <span class="s3">FONTDEFS</span></p><p style="padding-top: 7pt;padding-left: 107pt;text-indent: 0pt;text-align: left;">To install a new profile from this list, follow the following example, but insert any keyword for <span class="s3">BIG</span>.</p><p style="padding-top: 7pt;padding-left: 107pt;text-indent: 0pt;line-height: 107%;text-align: left;">To use the profile with the keyword <span class="s3">BIG </span>instead of the standard one, evaluate the following expression:</p><p class="s3" style="padding-top: 6pt;padding-left: 143pt;text-indent: 0pt;text-align: left;">(FONTSET ’BIG))</p><p style="padding-top: 7pt;padding-left: 107pt;text-indent: 0pt;text-align: left;">Now the font s are permanently replaced. (That is, until another profile is installed.)</p><p class="nav">&nbsp;&nbsp;</p><p class="nav">&nbsp;</p><p class="nav"><a href="part18.htm">&lt; Previous</a><span> | </span><a href="../Medley-Primer.html">Contents</a><span> | </span><a href="part20.htm">Next &gt;</a></p><p class="nav">&nbsp;&nbsp;</p></body></html>
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-<html xmlns="http://www.w3.org/1999/xhtml"><head><meta http-equiv="Content-Type" content="text/html; charset=utf-8"/><title>01-GLOSSARY</title><link href="navigation.css" rel="stylesheet" type="text/css"/><link href="document.css" rel="stylesheet" type="text/css"/></head><body><p class="top_nav"><a href="part1.htm">&lt; Previous</a><span> | </span><a href="../Medley-Primer.html">Contents</a><span> | </span><a href="part3.htm">Next &gt;</a></p><h1 style="padding-top: 3pt;padding-left: 35pt;text-indent: 0pt;text-align: left;"><a name="bookmark1">1. BRIEF GLOSSARY</a></h1><p style="padding-left: 35pt;text-indent: 0pt;line-height: 6pt;text-align: left;"><span><img width="640" height="8" alt="image" src="Image_006.png"/></span></p><p style="text-indent: 0pt;text-align: left;"><br/></p><p style="padding-left: 107pt;text-indent: 0pt;text-align: left;">The following definitions will acquaint you with general terms used throughout this primer. You will probably want to read through them now, and use this chapter as a reference while you read through the rest of the primer.</p><p style="text-indent: 0pt;text-align: left;"><br/></p><p style="padding-left: 227pt;text-indent: -59pt;text-align: left;">advising A Medley facility for specifying function modifications without necessarily knowing how a particular function works or even what it does. Even system functions can be changed with</p><p style="padding-left: 227pt;text-indent: 0pt;text-align: left;">advising.</p><p style="padding-top: 7pt;padding-left: 227pt;text-indent: -65pt;text-align: left;">argument A piece of information given to a Lisp function so that it can execute successfully. When a function is explained in the</p><p style="padding-left: 227pt;text-indent: 0pt;text-align: left;">primer, the arguments that it requires will also be given. Arguments are also called Parameters.</p><p style="padding-top: 7pt;padding-left: 183pt;text-indent: 0pt;text-align: left;">atom The smallest structure in Lisp; like a variable in other</p><p style="padding-left: 227pt;text-indent: 0pt;text-align: left;">programming languages, but can also have a property list and a function definition.</p><p style="padding-top: 7pt;padding-left: 227pt;text-indent: -103pt;text-align: left;">Background Menu The menu that appears when the mouse is not in any window and the right mouse button is pressed.</p><p style="padding-top: 7pt;padding-left: 227pt;text-indent: -55pt;text-align: left;">binding The value of a variable. It could be either a local or a global variable. See unbound.</p><p style="padding-top: 7pt;padding-left: 227pt;text-indent: -53pt;text-align: justify;">bitmap A rectangular array of &quot;pixels,&quot; each of which is on or off representing one point in the bitmap image.</p><p class="s3" style="padding-top: 7pt;padding-left: 227pt;text-indent: -50pt;line-height: 106%;text-align: justify;">BREAK <span class="p">An Lisp function that causes a function to stop executing, open a Break window, and allows you to find out what is happening while the function is halted.</span></p><p style="padding-top: 6pt;padding-left: 137pt;text-indent: 0pt;text-align: left;">Break Window A window that opens when an error is encountered while</p><p style="padding-left: 227pt;text-indent: 0pt;text-align: left;">running your program (i.e., when your program has broken).</p><p style="padding-left: 227pt;text-indent: 0pt;text-align: left;">There are tools to help you debug your program from this window. This is explained further in Chapter 14.</p><p style="padding-top: 7pt;padding-left: 227pt;text-indent: -53pt;text-align: left;">browse To examine a data structure by use of a display that allows you to &quot;move&quot; around within the data structure.</p><p style="padding-top: 7pt;padding-left: 178pt;text-indent: 0pt;text-align: left;">button (1) (n.) A key on a mouse.</p><p style="padding-top: 7pt;padding-left: 227pt;text-indent: 0pt;text-align: left;">(2) (v.t.) To press one of the mouse keys when making a selection.</p><p class="s3" style="padding-top: 7pt;padding-left: 188pt;text-indent: 0pt;text-align: left;">CAR <span class="p">A function that returns the head or first element of a list. See</span></p><p class="s3" style="padding-left: 227pt;text-indent: 0pt;text-align: left;">CDR<span class="p">.</span></p><p style="padding-top: 7pt;padding-left: 227pt;text-indent: -44pt;text-align: left;">caret The small blinking arrowhead that marks where text will appear when it is typed in from the keyboard.</p><p class="s3" style="padding-top: 7pt;padding-left: 227pt;text-indent: -38pt;line-height: 107%;text-align: left;">CDR <span class="p">A function that returns the tail (that is, everything but the first element) of a list. See </span>CAR<span class="p">.</span></p><p style="text-indent: 0pt;text-align: left;"><br/></p><p style="padding-top: 4pt;padding-left: 227pt;text-indent: -50pt;text-align: left;">CLlSP A mechanism for augmenting the standard Lisp syntax. One such augmentation included in Interlisp is the iterative</p><p style="padding-left: 197pt;text-indent: 30pt;line-height: 165%;text-align: left;">statement. See Chapter 9. cr Press your Return key.</p><p style="padding-left: 227pt;text-indent: -58pt;text-align: left;">datatype (1) The kind of a datum. In Interlisp, there are many system- defined datatypes, e.g., Floating-Point, Integer, Atom, etc.</p><p style="padding-top: 7pt;padding-left: 227pt;text-indent: 0pt;text-align: left;">(2) A datatype can also be user-defined. In this case, it is like a record made up from system types and other user-defined datatypes.</p><p class="s3" style="padding-top: 7pt;padding-left: 227pt;text-indent: -45pt;text-align: left;">DWIM <span class="p">&quot;Do-what-I-mean.&quot; Many errors made by Medley users could be corrected without any information about the purpose of the program or expression in question (e.g., misspellings, certain kinds of parenthesis errors). The </span>DWIM <span class="p">facility is called</span></p><p style="padding-left: 227pt;text-indent: 0pt;text-align: left;">automatically whenever an error occurs in the evaluation of an Interlisp expression. If <span class="s3">DWIM </span>is able to make a correction, the computation continues as though no error had occurred; otherwise, the standard error mechanism is invoked.</p><p style="padding-top: 7pt;padding-left: 227pt;text-indent: -43pt;text-align: justify;">error Occasionally, while a program is running, an error may occur which will stop the computation. Interlisp provides extensive facilities for detecting and handling error conditions, to</p><p style="padding-left: 227pt;text-indent: 0pt;text-align: justify;">enable the testing, debugging, and revising of imperfect programs.</p><p style="padding-top: 7pt;padding-left: 227pt;text-indent: -99pt;line-height: 107%;text-align: left;">evaluate or <span class="s3">EVAL </span>To find the value of a form. For example, if the variable <span class="s3">X </span>is bound to 5, we get 5 by evaluating <span class="s3">X</span>. Evaluation of a Lisp function involves evaluating the arguments and then</p><p style="padding-left: 227pt;text-indent: 0pt;line-height: 11pt;text-align: left;">applying the function.</p><p style="padding-top: 7pt;padding-left: 120pt;text-indent: 0pt;text-align: left;">Executive Window This is your main window, where you will run functions and</p><p style="padding-left: 227pt;text-indent: 0pt;text-align: left;">develop your programs. This is the window that the caret is in when you turn on your machine and load Medley.</p><p style="padding-top: 7pt;padding-left: 227pt;text-indent: -75pt;text-align: left;">file package A set of functions and conventions that facilitate the bookkeeping involved with working in a large system consisting of many source code files and their compiled counterparts. Essentially, the file package keeps track of</p><p style="padding-left: 227pt;text-indent: 0pt;text-align: left;">where things are and what things have changed. It also keeps track of which files have been modified and need to be</p><p style="padding-left: 227pt;text-indent: 0pt;text-align: left;">updated and recompiled.</p><p style="padding-top: 7pt;padding-left: 227pt;text-indent: -42pt;text-align: left;">form Another way of saying s-expression. A Lisp expression that can be evaluated.</p><p style="padding-top: 1pt;padding-left: 174pt;text-indent: -6pt;line-height: 19pt;text-align: left;">function A piece of Lisp code that executes and returns a value. history The programmer’s assistant is built around a memory</p><p style="padding-left: 227pt;text-indent: 0pt;line-height: 10pt;text-align: left;">structure called the history list. The history functions (e.g.</p><p class="s3" style="padding-left: 227pt;text-indent: 0pt;line-height: 107%;text-align: left;">FIX<span class="p">, </span>UNDO<span class="p">, </span>REDO<span class="p">) are part of this assistant. These operations allow you to conveniently rework previously specified</span></p><p style="padding-left: 227pt;text-indent: 0pt;line-height: 11pt;text-align: left;">operations.</p><p style="padding-top: 7pt;padding-left: 227pt;text-indent: -76pt;text-align: justify;">History List As you type on the screen, you will notice a number followed by a slash, followed by another number. The first number is the exec number, the second is the event number. Each</p><p style="padding-left: 227pt;text-indent: 0pt;text-align: justify;">number, and the information on that line, is stored</p><p style="padding-left: 227pt;text-indent: 0pt;text-align: justify;">sequentially as the History List Using the History List, you</p><p style="text-indent: 0pt;text-align: left;"><br/></p><p style="padding-top: 4pt;padding-left: 227pt;text-indent: 0pt;text-align: left;">can easily reexecute lines typed earlier in a work session. See Chapter 2.</p><p style="padding-top: 7pt;padding-left: 187pt;text-indent: 0pt;text-align: left;">icon A pictorial representation, usually of a shrunken window.</p><p style="padding-top: 7pt;padding-left: 227pt;text-indent: -63pt;text-align: justify;">inspector An interactive display program for examining and changing the parts of a data structure. Medley has inspectors for lists and other data types.</p><p style="padding-top: 7pt;padding-left: 117pt;text-indent: 0pt;text-align: left;">iterative statement (also called i.s.) A statement in Interlisp that repetitively</p><p style="padding-left: 227pt;text-indent: 0pt;line-height: 107%;text-align: left;">executes a body of code For example, <span class="s3">(for x from l to 5 do (PRlNT x)) </span>is an i.s.</p><p style="padding-top: 7pt;padding-left: 227pt;text-indent: -100pt;text-align: left;">iterative variable (also called i.v.) Usually, an iterative statement is controlled by the value that the i.v. takes on. In the iterative statement</p><p style="padding-left: 227pt;text-indent: 0pt;text-align: left;">example above, x is the iterative variable because its value is being changed by each cycle through the loop. All iterative</p><p style="padding-left: 227pt;text-indent: 0pt;text-align: left;">variables are local to the iterative statement where they are defined.</p><p style="padding-top: 7pt;padding-left: 227pt;text-indent: -40pt;text-align: left;">Lisp Family of languages invented for &quot;list processing.&quot; These languages have in common a set of basic primitives for</p><p style="padding-left: 227pt;text-indent: 0pt;text-align: left;">creating and manipulating symbol structures. Interlisp-D is an implementation of the Lisp language together with an</p><p style="padding-left: 227pt;text-indent: 0pt;text-align: left;">environment (set of tools) for programming, and a set of packages that extend the functionality of the system.</p><p style="padding-top: 7pt;padding-left: 227pt;text-indent: -35pt;text-align: left;">list A collection of atoms and lists; a list is denoted by surrounding its contents with a pair of parentheses.</p><p style="padding-top: 7pt;padding-left: 148pt;text-indent: 0pt;text-align: left;">Masterscope A program analysis tool. When told to analyze a program,</p><p style="padding-left: 227pt;text-indent: 0pt;text-align: left;">Masterscope creates a database of information about the</p><p style="padding-left: 227pt;text-indent: 0pt;text-align: left;">program. In particular, Masterscope knows which functions call other functions and which functions use which variables.</p><p style="padding-left: 227pt;text-indent: 0pt;text-align: left;">Masterscope can then answer questions about the program and display the information with a browser.</p><p style="padding-top: 7pt;padding-left: 227pt;text-indent: -46pt;text-align: left;">menu A way of graphically presenting you with a set of options.</p><p style="padding-left: 227pt;text-indent: 0pt;text-align: left;">There are two kinds of menus: pop-up menus are created</p><p style="padding-left: 227pt;text-indent: 0pt;text-align: left;">when needed and disappear after an item has been selected; permanent menus remain on the screen after use until</p><p style="padding-left: 227pt;text-indent: 0pt;text-align: left;">deliberately closed.</p><p style="padding-top: 7pt;padding-left: 227pt;text-indent: -50pt;text-align: left;">mouse The mouse is the box attached to your keyboard. It controls the movement of the cursor on your screen. As you become</p><p style="padding-left: 227pt;text-indent: 0pt;text-align: left;">familiar with the mouse, you will find it much quicker to use the mouse than the keyboard.</p><p style="padding-top: 7pt;padding-left: 141pt;text-indent: 0pt;text-align: left;">Mouse Cursor The small arrow on the screen that points to the northwest.</p><p style="padding-top: 7pt;padding-left: 117pt;text-indent: 0pt;text-align: left;">Mouse Cursor Icons Four types of mouse cursor icons are shown below.</p><p style="padding-top: 9pt;padding-left: 190pt;text-indent: 0pt;text-align: left;"><span><img width="20" height="21" alt="image" src="Image_007.gif"/></span>         Wait. The processor is busy.</p><p style="padding-top: 9pt;padding-left: 227pt;text-indent: -33pt;text-align: left;"><span><img width="17" height="21" alt="image" src="Image_008.gif"/></span>        The Mouse Confirm Cursor. It appears when you have to confirm that the choice you just made was correct. If it was, press the left button. If the choice was not correct, press the right button to abort.</p><p style="text-indent: 0pt;text-align: left;"><br/></p><p style="text-indent: 0pt;text-align: left;"><span><img width="21" height="19" alt="image" src="Image_009.gif"/></span></p><p style="padding-top: 4pt;padding-left: 227pt;text-indent: 0pt;text-align: left;">This means &quot;sweep out&quot; the shape of the window. To do this, move the mouse to a position where you want a corner. Press the left mouse button, and hold it down. Move the mouse</p><p style="padding-left: 227pt;text-indent: 0pt;text-align: left;">diagonally to sketch a rectangle. When the rectangle is the desired size and shape, release the left button.</p><p style="text-indent: 0pt;text-align: left;"><br/></p><p style="text-indent: 0pt;text-align: left;"><span><img width="16" height="16" alt="image" src="Image_010.gif"/></span></p><p style="padding-top: 4pt;padding-left: 227pt;text-indent: 0pt;text-align: left;">This is the &quot;move window&quot; prompt. Move the mouse so that the large &quot;ghost&quot; rectangle is in the position where you want the window. When you click the left mouse button, the</p><p style="padding-left: 227pt;text-indent: 0pt;text-align: left;">window will appear at this new location.</p><p class="s3" style="padding-top: 7pt;padding-left: 227pt;text-indent: -39pt;line-height: 107%;text-align: left;">NIL NIL <span class="p">is the Lisp symbol for the empty list. It can also be represented by a left parenthesis followed by a right</span></p><p style="padding-left: 227pt;text-indent: 0pt;text-align: left;">parenthesis ( ). It is the only expression in Lisp that is both an atom and a list.</p><p style="padding-top: 6pt;padding-left: 184pt;text-indent: 0pt;text-align: justify;">pixel Pixel stands for &quot;picture element.&quot; The computer monitor</p><p style="padding-left: 227pt;text-indent: 0pt;text-align: justify;">screen is made up of a rectangular array of pixels. Each pixel corresponds to one bit. When a bit is turned on (i.e., set to 1), the pixel on the screen represented by this bit is black.</p><p style="padding-top: 7pt;padding-left: 227pt;text-indent: -89pt;text-align: left;">pretty printing Pretty printing refers to the way Lisp functions are printed with special indentation, to make them easier to read.</p><p style="padding-left: 227pt;text-indent: 0pt;text-align: left;">Functions are pretty printed in the structure editor, SEdit</p><p style="padding-left: 227pt;text-indent: 0pt;text-align: left;">(see Chapter 7). You can pretty print uncompiled functions by calling the function <span class="s3">PP </span>with the function you would like to</p><p style="padding-left: 227pt;text-indent: 0pt;line-height: 107%;text-align: left;">see as an argument, i.e. (<span class="s3">PP </span>function-name). For an example of this, see Figure 1.5.</p><p style="text-indent: 0pt;text-align: left;"><br/></p><p style="padding-left: 242pt;text-indent: 0pt;text-align: left;"><span><img width="344" height="230" alt="image" src="Image_011.gif"/></span></p><p style="padding-top: 3pt;padding-left: 252pt;text-indent: 0pt;text-align: left;">Figure 1.5. Example of Pretty Printing Function <span class="s3">PP</span></p><p style="text-indent: 0pt;text-align: left;"><br/></p><p style="padding-left: 141pt;text-indent: 0pt;text-align: left;">Programmer’s</p><p style="padding-left: 227pt;text-indent: -64pt;text-align: left;">Assistant The programmer’s assistant accesses the History List to allow you to <span class="s3">FIX</span>, <span class="s3">UNDO</span>, and/or <span class="s3">REDO </span>your previous expressions</p><p style="padding-left: 227pt;text-indent: 0pt;text-align: left;">typed to the executive window (see Chapter 2).</p><p style="padding-top: 7pt;padding-left: 227pt;text-indent: -95pt;text-align: left;">Prompt Window The narrow black window at the top of the screen. It displays system prompts, or prompts you have developed (see Figure 1.6).</p><p style="text-indent: 0pt;text-align: left;"><br/></p><p style="padding-left: 270pt;text-indent: 0pt;text-align: left;"><span><img width="267" height="101" alt="image" src="Image_012.gif"/></span></p><p style="padding-top: 4pt;padding-left: 307pt;text-indent: 0pt;text-align: left;">Figure 1.6. Prompt Window</p><p style="padding-top: 7pt;padding-left: 149pt;text-indent: 0pt;text-align: left;">property list A list of the form ( &lt;property-namel&gt; &lt;property-value1&gt;</p><p style="padding-left: 227pt;text-indent: 0pt;text-align: left;">&lt;property-name2&gt; &lt;property-value2&gt; ....) associated with an atom. It accessed by the functions <span class="s3">GETPROP </span>and <span class="s3">PUTPROP</span>.</p><p style="padding-top: 7pt;padding-left: 177pt;text-indent: 0pt;text-align: left;">record A record is a data structure that consists of named &quot;fields&quot;.</p><p style="padding-left: 227pt;text-indent: 0pt;text-align: left;">Accessing elements of a record can be separated from the details of how the data structure is actually stored. This</p><p style="padding-left: 227pt;text-indent: 0pt;text-align: left;">eliminates many programming details. A record definition</p><p style="padding-left: 227pt;text-indent: 0pt;text-align: left;">establishes a record template, describing the form of a record. A record instance is an actual record storing data according to a particular record template. (See datatype, second</p><p style="padding-left: 227pt;text-indent: 0pt;text-align: left;">definition.)</p><p style="padding-top: 7pt;padding-left: 108pt;text-indent: 0pt;text-align: left;">Right Button Default</p><p style="padding-left: 139pt;text-indent: 0pt;text-align: left;">Window Menu This is the menu that appears when the mouse is in a</p><p style="padding-left: 227pt;text-indent: 0pt;text-align: left;">window, and the right mouse button is pressed. It looks like the menu in Figure 1.7. If this menu does not appear when you press the right button of the mouse and the mouse is in</p><p style="padding-left: 227pt;text-indent: 0pt;text-align: left;">the window, move the mouse so that it is pointing to the title bar of the window, and press the right button.</p><p style="text-indent: 0pt;text-align: left;"><br/></p><p style="padding-left: 344pt;text-indent: 0pt;text-align: left;"><span><img width="71" height="134" alt="image" src="Image_013.gif"/></span></p><p style="text-indent: 0pt;text-align: left;"><br/></p><p style="padding-left: 260pt;text-indent: 0pt;text-align: left;">Figure 1.7. Right Button Default Window Menu</p><p style="text-indent: 0pt;text-align: left;"><br/></p><p style="padding-left: 227pt;text-indent: -77pt;text-align: justify;">s-expression Short for &quot;symbolic expression&quot;. In Lisp, this refers to any well-formed collection of left parentheses, atoms, and right parentheses.</p><p style="text-indent: 0pt;text-align: left;"><br/></p><p style="padding-left: 227pt;text-indent: -45pt;text-align: left;">stack A pushdown list. Whenever a function is entered, information about that specific function call is pushed onto (i.e., added to</p><p style="padding-left: 227pt;text-indent: 0pt;text-align: left;">the front of) the stack. This information includes the variable names and their values associated with the function call.</p><p style="padding-left: 227pt;text-indent: 0pt;text-align: left;">When the function is exitted, that data is popped off the stack.</p><p style="text-indent: 0pt;text-align: left;"><br/></p><p style="padding-left: 176pt;text-indent: 0pt;text-align: left;">sysout A flle containing a whole Lisp environment: namely,</p><p style="padding-left: 227pt;text-indent: 0pt;text-align: left;">everything you defined or loaded into the environment, the windows that appeared on the screen, the amount of memory</p><p style="padding-left: 227pt;text-indent: 0pt;text-align: left;">used, and so on. Everything is stored in the sysout file exactly as it was when the function <span class="s3">SYSOUT </span>was called.</p><p style="text-indent: 0pt;text-align: left;"><br/></p><p class="s3" style="padding-top: 4pt;padding-left: 176pt;text-indent: 0pt;text-align: justify;">TRACE <span class="p">A function that creates a trace of the execution of another</span></p><p style="padding-left: 227pt;text-indent: 0pt;text-align: justify;">function. Each time the traced function is called, it prints out the values of the arguments it was called with, and prints out the value it returns upon completion.</p><p style="text-indent: 0pt;text-align: left;"><br/></p><p style="padding-left: 227pt;text-indent: -61pt;text-align: left;">unbound Without value; an atom is unbound if a value has never been assigned to it.</p><p style="text-indent: 0pt;text-align: left;"><br/></p><p style="padding-left: 227pt;text-indent: -56pt;text-align: left;">window A rectangular area of the screen that acts as the main display area for some Lisp process,</p><p class="nav">&nbsp;&nbsp;</p><p class="nav">&nbsp;</p><p class="nav"><a href="part1.htm">&lt; Previous</a><span> | </span><a href="../Medley-Primer.html">Contents</a><span> | </span><a href="part3.htm">Next &gt;</a></p><p class="nav">&nbsp;&nbsp;</p></body></html>
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-<html xmlns="http://www.w3.org/1999/xhtml"><head><meta http-equiv="Content-Type" content="text/html; charset=utf-8"/><title>17-INSPECTOR</title><link href="navigation.css" rel="stylesheet" type="text/css"/><link href="document.css" rel="stylesheet" type="text/css"/></head><body><p class="top_nav"><a href="part19.htm">&lt; Previous</a><span> | </span><a href="../Medley-Primer.html">Contents</a><span> | </span><a href="part21.htm">Next &gt;</a></p><h1 style="padding-top: 3pt;padding-left: 35pt;text-indent: 0pt;text-align: left;"><a name="bookmark19">17. THE INSPECTOR</a></h1><p style="padding-left: 35pt;text-indent: 0pt;line-height: 6pt;text-align: left;"><span><img width="640" height="8" alt="image" src="Image_113.png"/></span></p><p style="text-indent: 0pt;text-align: left;"><br/></p><p style="padding-left: 107pt;text-indent: 0pt;text-align: left;">The Inspector is a window-oriented tool designed to examine data structures. Because Medley is such a powerful programming environment, many types of data structures would be difficult to see in any other way.</p><p style="text-indent: 0pt;text-align: left;"><br/></p><h2 style="padding-left: 35pt;text-indent: 0pt;text-align: left;">Calling the Inspector                                                                                        </h2><p style="text-indent: 0pt;text-align: left;"><br/></p><p style="padding-top: 4pt;padding-left: 107pt;text-indent: 0pt;text-align: left;">Take as an example an object defined through a sequence of pointers (i.e., a bitmap on the property list of a window on the property list of an atom inaprogram.)</p><p style="padding-top: 7pt;padding-left: 107pt;text-indent: 0pt;text-align: left;">To inspect an object named <span class="s3">NAME</span>, type:</p><p class="s3" style="padding-top: 7pt;padding-left: 143pt;text-indent: 0pt;text-align: left;">(INSPECT ’NAME)</p><p style="padding-top: 7pt;padding-left: 107pt;text-indent: 0pt;line-height: 107%;text-align: left;">If <span class="s3">NAME </span>has many possible interpretations, an option menu will appear. For example, in Interlisp-D, a litatom can refer to both an atom and a function. For example, if <span class="s3">NAME</span></p><p style="padding-left: 107pt;text-indent: 0pt;text-align: left;">was a record, had a function definition, and had properties on its property list, then the menu would appear as in Figure 17-1.</p><p style="text-indent: 0pt;text-align: left;"><br/></p><p style="text-indent: 0pt;text-align: left;"><br/></p><p style="padding-left: 263pt;text-indent: 0pt;text-align: left;"><span><img width="132" height="74" alt="image" src="Image_114.gif"/></span></p><p style="text-indent: 0pt;text-align: left;"><br/></p><p style="padding-left: 193pt;text-indent: 0pt;text-align: left;">Figure 17-1. Option Window for Inspection of <span class="s3">NAME</span></p><p style="padding-top: 7pt;padding-left: 107pt;text-indent: 0pt;line-height: 107%;text-align: left;">If <span class="s3">NAME </span>were a list, then the option menu shown in Figure 17.2 would appear. The options include:</p><p style="padding-top: 6pt;padding-left: 108pt;text-indent: 0pt;text-align: left;">• Calling the display editor on the list</p><p style="padding-top: 7pt;padding-left: 108pt;text-indent: 0pt;text-align: left;">• Calling the TTY editor (see Chapter 6)</p><p style="padding-top: 7pt;padding-left: 108pt;text-indent: 0pt;text-align: left;">• Seeing the list’s elements in a display window. If you choose this option, each</p><p style="padding-left: 125pt;text-indent: 0pt;text-align: left;">element in the list will appear in the right column of the Inspector window. The left column of the Inspector window will be made up of numbers (see Figure 17-3).</p><p style="padding-top: 7pt;padding-left: 125pt;text-indent: -17pt;text-align: left;">• Inspecting the list as a record type (this last option would produce a menu of known record types). If you choose a record type, the items in the list will appear in the</p><p style="padding-left: 125pt;text-indent: 0pt;text-align: left;">right column of the Inspector window. The left column of the Inspector window will be made up of the field names of the record.</p><p style="text-indent: 0pt;text-align: left;"><br/></p><p style="padding-left: 273pt;text-indent: 0pt;text-align: left;"><span><img width="100" height="67" alt="image" src="Image_115.gif"/></span></p><p style="padding-top: 5pt;padding-left: 196pt;text-indent: 0pt;text-align: left;">Figure 17-2. Option Window for Inspection of List</p><p style="text-indent: 0pt;text-align: left;"><br/></p><h2 style="padding-top: 4pt;padding-left: 35pt;text-indent: 0pt;text-align: left;">Using the Inspector                                                                                          </h2><p style="text-indent: 0pt;text-align: left;"><br/></p><p style="padding-top: 4pt;padding-left: 107pt;text-indent: 0pt;text-align: justify;">If you choose to display your data structure in an edit window, simply edit the structure and exit in the normal manner when done. If you choose to display the data structure in an inspect window, then follow these instructions:</p><p style="padding-top: 7pt;padding-left: 108pt;text-indent: 0pt;text-align: left;">• To select an item, point the mouse cursor at it and press the left mouse button.</p><p style="padding-top: 7pt;padding-left: 125pt;text-indent: -17pt;text-align: left;">• Items in the right column of an Inspector window can themselves be inspected. To do this, choose the item, and press the center mouse button.</p><p style="padding-top: 7pt;padding-left: 125pt;text-indent: -17pt;text-align: left;">• Items in the right column of an Inspector window can be changed. To do this, choose the corresponding item in the left column, and press the center mouse button. You</p><p style="padding-left: 125pt;text-indent: 0pt;text-align: left;">will be prompted for the new value, and the item will be changed. The sequence of steps is shown in Figure 17-3.</p><p style="text-indent: 0pt;text-align: left;"><br/></p><p style="padding-left: 107pt;text-indent: 0pt;text-align: left;">The item in the lefl column is selected, and the middle mouse button pressed. Select the</p><p class="s3" style="padding-left: 107pt;text-indent: 0pt;text-align: left;">SET <span class="p">option from the menu that pops up.</span></p><p style="padding-top: 7pt;padding-left: 107pt;text-indent: 0pt;text-align: left;">You will then be prompted for the new value. Type it in.</p><p style="padding-top: 7pt;padding-bottom: 2pt;padding-left: 107pt;text-indent: 0pt;text-align: left;">The item in the right column is updated to the value of what you typed in.</p><p style="padding-left: 107pt;text-indent: 0pt;text-align: left;"><span><img width="203" height="60" alt="image" src="Image_116.gif"/></span></p><p style="text-indent: 0pt;text-align: left;"><br/></p><p style="padding-left: 234pt;text-indent: 0pt;text-align: left;"><span><img width="203" height="107" alt="image" src="Image_117.gif"/></span></p><p style="text-indent: 0pt;text-align: left;"><br/></p><p style="padding-left: 361pt;text-indent: 0pt;text-align: left;"><span><img width="203" height="60" alt="image" src="Image_118.gif"/></span></p><p style="padding-top: 6pt;padding-left: 113pt;text-indent: 0pt;text-align: left;">Figure 17-3. Steps Involved in Changing Value in Right Column of Inspector Window</p><p style="text-indent: 0pt;text-align: left;"><br/></p><h2 style="padding-left: 35pt;text-indent: 0pt;text-align: left;">Inspector Example                                                                                           </h2><p style="text-indent: 0pt;text-align: left;"><br/></p><p style="padding-top: 4pt;padding-left: 107pt;text-indent: 0pt;line-height: 106%;text-align: left;">This example will use ideas discussed in Chapter 21. An example, <span class="s3">ANlMALGRAPH </span>, is created in that section. You do not need to know the details of how it was created, but the structure is examined in this chapter.</p><p style="padding-top: 6pt;padding-left: 107pt;text-indent: 0pt;text-align: left;">If you type</p><p class="s3" style="padding-top: 7pt;padding-left: 143pt;text-indent: 0pt;text-align: left;">(INSPECT ANIMAL.GRAPH)</p><p style="padding-top: 7pt;padding-left: 107pt;text-indent: 0pt;text-align: left;">and then choose the Inspect option from the menu, a display appears as shown in</p><p style="padding-left: 107pt;text-indent: 0pt;line-height: 107%;text-align: left;">Figure 17-4. <span class="s3">ANlMAL.GRAPH </span>is being inspected as a list. Note the numbers in the left column of the inspectorwindow.</p><p style="text-indent: 0pt;text-align: left;"><span><img width="303" height="188" alt="image" src="Image_119.gif"/></span></p><p class="s6" style="padding-top: 3pt;text-indent: 0pt;text-align: right;">17. THE INSPECTOR</p><p style="padding-left: 35pt;text-indent: 0pt;line-height: 1pt;text-align: left;"><span><img width="665" height="1" alt="image" src="Image_120.png"/></span></p><p style="text-indent: 0pt;text-align: left;"><br/></p><p style="padding-left: 107pt;text-indent: 43pt;line-height: 20pt;text-align: left;">Figure 17-4. Inspector Window For <span class="s3">ANIMAL.GRAPH </span>, Inspected as List If you choose the &quot;As A Record&quot; option, and choose &quot;<span class="s3">GRAPH</span>&quot; from the menu that</p><p style="padding-top: 1pt;padding-bottom: 1pt;padding-left: 107pt;text-indent: 0pt;text-align: left;">appears, the inspector window looks like Figure 17-5. Note the fieldnames in the left column of the inspector window.</p><p style="padding-left: 147pt;text-indent: 0pt;text-align: left;"><span><img width="435" height="202" alt="image" src="Image_121.gif"/></span></p><p style="text-indent: 0pt;text-align: left;"><br/></p><p style="padding-left: 111pt;text-indent: 0pt;text-align: center;">Figure 17-5. Inspector Window for <span class="s3">ANlMAL.GRAPH </span>,  Inspected as Instance of <span class="s3">GRAPH</span></p><p style="padding-left: 111pt;text-indent: 0pt;text-align: center;">Record</p><p style="text-indent: 0pt;text-align: left;"><br/></p><p style="padding-left: 107pt;text-indent: 0pt;line-height: 107%;text-align: left;">The remaining examples will use <span class="s3">ANlMAL.GRAPH </span>inspected as a list. When the first item in the Inspector window is chosen with the leff mouse button, the Inspector</p><p style="padding-left: 107pt;text-indent: 0pt;line-height: 11pt;text-align: left;">window looks like Figure 17-6.</p><p style="text-indent: 0pt;text-align: left;"><br/></p><p style="padding-left: 197pt;text-indent: 0pt;text-align: left;"><span><img width="303" height="188" alt="image" src="Image_122.gif"/></span></p><p style="text-indent: 0pt;text-align: left;"><br/></p><p style="padding-top: 4pt;padding-left: 127pt;text-indent: 0pt;text-align: left;">Figure 17-6. Inspector Window for <span class="s3">ANlMAL.GRAPH </span>With First Element Selected</p><p style="padding-top: 7pt;padding-left: 107pt;text-indent: 0pt;text-align: left;">When you use the middle mouse button to inspect the selected list element, the display looks like Figure 17-7.</p><p style="text-indent: 0pt;text-align: left;"><br/></p><p style="padding-left: 184pt;text-indent: 0pt;text-align: left;"><span><img width="338" height="188" alt="image" src="Image_123.gif"/></span></p><p style="padding-top: 4pt;padding-left: 111pt;text-indent: 0pt;text-align: center;">Figure 17-7. Inspector Window for <span class="s3">ANlMAL.GRAPH </span>and for  First Element of</p><p class="s3" style="padding-left: 111pt;text-indent: 0pt;text-align: center;">ANIMAL.GRAPH</p><p style="text-indent: 0pt;text-align: left;"><br/></p><p style="padding-left: 107pt;text-indent: 0pt;text-align: left;">How you can see that six items make up the list, and you can further choose to inspect one of these items. Notice that this is also inspected as a list. As usual, it could also</p><p style="padding-left: 107pt;text-indent: 0pt;text-align: left;">have been inspected as a record.</p><p style="padding-top: 7pt;padding-left: 107pt;text-indent: 0pt;line-height: 106%;text-align: left;">Select item 5 - <span class="s3">MAMMAL DOG CAT </span>- with the left mouse button. Press the middle mouse button. Choose &quot;Inspect&quot; to inspect your choice as a list. The Inspector now displays the values of the structure that makes up <span class="s3">MAMMAL DOG CAT </span>. (See Figure 17-8.)</p><p style="text-indent: 0pt;text-align: left;"><br/></p><p style="padding-left: 235pt;text-indent: 0pt;text-align: left;"><span><img width="201" height="188" alt="image" src="Image_124.gif"/></span></p><p style="padding-top: 4pt;padding-left: 285pt;text-indent: -175pt;line-height: 107%;text-align: left;">Figure 17-8. Inspector Window for Element S From Figure 17.7 That Begins <span class="s3">((MAMMAL DOG CAT)</span>.</p><p class="nav">&nbsp;&nbsp;</p><p class="nav">&nbsp;</p><p class="nav"><a href="part19.htm">&lt; Previous</a><span> | </span><a href="../Medley-Primer.html">Contents</a><span> | </span><a href="part21.htm">Next &gt;</a></p><p class="nav">&nbsp;&nbsp;</p></body></html>
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-<html xmlns="http://www.w3.org/1999/xhtml"><head><meta http-equiv="Content-Type" content="text/html; charset=utf-8"/><title>18-MASTERSCOPE</title><link href="navigation.css" rel="stylesheet" type="text/css"/><link href="document.css" rel="stylesheet" type="text/css"/></head><body><p class="top_nav"><a href="part20.htm">&lt; Previous</a><span> | </span><a href="../Medley-Primer.html">Contents</a><span> | </span><a href="part22.htm">Next &gt;</a></p><h1 style="padding-top: 3pt;padding-left: 35pt;text-indent: 0pt;text-align: left;"><a name="bookmark20">18. MASTERSCOPE</a></h1><p style="padding-left: 35pt;text-indent: 0pt;line-height: 6pt;text-align: left;"><span><img width="640" height="8" alt="image" src="Image_125.png"/></span></p><p style="text-indent: 0pt;text-align: left;"><br/></p><p style="padding-top: 15pt;padding-left: 107pt;text-indent: 0pt;text-align: left;">Masterscope is a tool that allows you to quickly examine the structure of complex</p><p style="padding-left: 107pt;text-indent: 0pt;text-align: left;">programs. As your programs enlarge, you may forget what variables are global, what functions call other functions, and so forth. Masterscope keeps track of this for you.</p><p style="padding-top: 7pt;padding-left: 107pt;text-indent: 0pt;text-align: left;">To use Masterscope, first load <span class="s3">MASTERSCOPE.DFASL </span>and <span class="s3">EXPORTS.ALL</span>.</p><p style="padding-top: 7pt;padding-left: 107pt;text-indent: 0pt;line-height: 107%;text-align: left;">Suppose that <span class="s3">JVTO </span>is the name of a file that contains many of the functions involved in a complex system and that <span class="s3">LINTRANS </span>is the file containing the remaining functions. The first step is to ask Masterscope to analyze these files. These files must be loaded.</p><p style="padding-left: 107pt;text-indent: 0pt;line-height: 11pt;text-align: left;">All Masterscope queries and commands begin with a period followed by a space, as in</p><p class="s3" style="padding-top: 7pt;padding-left: 143pt;text-indent: 0pt;text-align: left;">. ANALYZE FNS ON MSCOPEDEMO</p><p style="padding-top: 7pt;padding-left: 107pt;text-indent: 0pt;line-height: 107%;text-align: left;">The <span class="s3">ANALYZE </span>process takes a while, so the system prints a period on the screen for each function it has analyzed. (See Figure 18-1)</p><p style="text-indent: 0pt;text-align: left;"><br/></p><p style="padding-left: 136pt;text-indent: 0pt;text-align: left;"><span><img width="402" height="85" alt="image" src="Image_126.gif"/></span></p><p style="text-indent: 0pt;text-align: left;"><br/></p><p style="padding-left: 111pt;text-indent: 0pt;text-align: center;">Figure 18-1. Executive Window After Analyzing  Files</p><p style="padding-top: 7pt;padding-left: 106pt;text-indent: 0pt;line-height: 107%;text-align: left;">If you are not quite sure what functions were just analyzed, type the file’s <span class="s3">COMS </span>variable (see the File Variables section in Chapter 7) into the Executive Window. The names of</p><p style="padding-left: 107pt;text-indent: 0pt;line-height: 11pt;text-align: left;">the functions stored on the file will be a part of the value of this variable.</p><p style="padding-top: 7pt;padding-left: 107pt;text-indent: 0pt;text-align: left;">A variety of commands are now possible, all referring to individual functions within the analyzed files. Substantial variation in exact wording is permitted. Some commands</p><p style="padding-left: 107pt;text-indent: 0pt;text-align: left;">are:</p><p class="s3" style="padding-top: 7pt;padding-left: 106pt;text-indent: 0pt;text-align: left;">. SHOW PATHS FROM ANY TO ANY</p><p class="s3" style="padding-left: 106pt;text-indent: 0pt;text-align: left;">. EDIT WHERE ANY CALLS <span class="s4">functionname</span></p><p class="s3" style="padding-left: 106pt;text-indent: 0pt;text-align: left;">. EDIT WHERE ANY USES <span class="s4">variablename</span></p><p class="s3" style="padding-left: 106pt;text-indent: 0pt;text-align: left;">. WHO CALLS WHOM</p><p class="s3" style="padding-left: 106pt;text-indent: 0pt;text-align: left;">. WHO CALLS <span class="s4">functionname</span></p><p class="s3" style="padding-left: 106pt;text-indent: 0pt;text-align: left;">. BY WHOM IS <span class="s4">functionname </span>CALLED</p><p class="s3" style="padding-left: 107pt;text-indent: 0pt;text-align: left;">. WHO USES <span class="s4">variablename </span>AS FIELD</p><p style="text-indent: 0pt;text-align: left;"><br/></p><p style="padding-left: 106pt;text-indent: 0pt;text-align: left;">Note that the function is being called to invoke each command. Refer to the <i>IRM </i>for commands not listed here.</p><p style="padding-top: 7pt;padding-left: 106pt;text-indent: 0pt;line-height: 107%;text-align: left;">Figure 18-2 shows the Executive Window after the commands <span class="s3">. WHO CALLS GobbleDump </span>and <span class="s3">. WHO DOES JVL inScan CALL</span>.</p><p style="text-indent: 0pt;text-align: left;"><br/></p><p style="padding-left: 135pt;text-indent: 0pt;text-align: left;"><span><img width="402" height="86" alt="image" src="Image_127.gif"/></span></p><p style="text-indent: 0pt;text-align: left;"><br/></p><p style="padding-left: 111pt;text-indent: 0pt;text-align: center;">Figure 18-2. Sample Masterscope Output</p><p class="s7" style="padding-top: 3pt;padding-left: 35pt;text-indent: 0pt;text-align: left;"> 18. MASTERSCOPE                                                                                                                                                  </p><p style="text-indent: 0pt;text-align: left;"><br/></p><h2 style="padding-top: 4pt;padding-left: 35pt;text-indent: 0pt;text-align: left;">SHOW DATA Command and GRAPHER                                                        </h2><p style="text-indent: 0pt;text-align: left;"><br/></p><p style="padding-top: 4pt;padding-left: 107pt;text-indent: 0pt;line-height: 107%;text-align: left;">When the library package <span class="s3">GRAPHER </span>is loaded (to load this package, type <span class="s3">(FILESLOAD GRAPHER)</span>), Masterscope’s <span class="s3">SHOWPATHS </span>command is modified. The command will be</p><p style="padding-left: 107pt;text-indent: 0pt;text-align: left;">changed to generate a tree structure showi ng how the program’s functions interact instead of a tabular printout into the Executive window. For example, typing:</p><p class="s3" style="padding-top: 6pt;padding-left: 143pt;text-indent: 0pt;text-align: left;">. SHOW PATHS FROM ProcessEND</p><p style="text-indent: 0pt;text-align: left;"><br/></p><p style="padding-left: 107pt;text-indent: 0pt;text-align: left;">produced the display shown in Figure 18-3.</p><p style="text-indent: 0pt;text-align: left;"><br/></p><p style="padding-left: 126pt;text-indent: 0pt;text-align: left;"><span><img width="428" height="152" alt="image" src="Image_128.gif"/></span></p><p style="text-indent: 0pt;text-align: left;"><br/></p><p style="padding-left: 111pt;text-indent: 0pt;text-align: center;">Figure 18-3. <span class="s3">SHOW PATHS </span>Display Example</p><p style="text-indent: 0pt;text-align: left;"><br/></p><p style="padding-left: 107pt;text-indent: 0pt;text-align: left;">All the functions in the display are part of this analyzed file or a previously analyzed file. Boxed functions indicate that the function name has been duplicated in another place on the display.</p><p style="text-indent: 0pt;text-align: left;"><br/></p><p style="padding-left: 107pt;text-indent: 0pt;text-align: left;">Selecting any function name on the display will pretty print the function in a window (see Figure 18-4).</p><p style="text-indent: 0pt;text-align: left;"><br/></p><p style="padding-left: 126pt;text-indent: 0pt;text-align: left;"><span><img width="428" height="152" alt="image" src="Image_129.gif"/></span></p><p style="text-indent: 0pt;text-align: left;"><br/></p><p style="text-indent: 0pt;text-align: left;"><br/></p><p style="padding-left: 177pt;text-indent: 0pt;text-align: left;"><span><img width="356" height="86" alt="image" src="Image_130.gif"/></span></p><p style="text-indent: 0pt;text-align: left;"><br/></p><p style="padding-left: 111pt;text-indent: 0pt;text-align: center;">Figure 18-4. Browser  Printout Example</p><p style="text-indent: 0pt;text-align: left;"><br/></p><p style="padding-top: 7pt;padding-left: 107pt;text-indent: 0pt;text-align: left;">Selecting it again with the left mouse button will produce a desription of the function’s role in the overall system (see Figure 18-5).</p><p class="s6" style="padding-top: 3pt;text-indent: 0pt;text-align: right;">18. MASTERSCOPE</p><p style="padding-left: 35pt;text-indent: 0pt;line-height: 1pt;text-align: left;"><span><img width="665" height="1" alt="image" src="Image_131.png"/></span></p><p style="text-indent: 0pt;text-align: left;"><br/></p><p style="padding-left: 110pt;text-indent: 0pt;text-align: left;"><span><img width="428" height="152" alt="image" src="Image_132.gif"/></span></p><p style="text-indent: 0pt;text-align: left;"><br/></p><p style="padding-left: 188pt;text-indent: 0pt;text-align: left;"><span><img width="259" height="106" alt="image" src="Image_133.gif"/></span></p><p style="text-indent: 0pt;text-align: left;"><br/></p><p style="padding-top: 4pt;padding-left: 212pt;text-indent: 0pt;text-align: left;">Figure 18-5. Browser Description Example</p><p class="nav">&nbsp;&nbsp;</p><p class="nav">&nbsp;</p><p class="nav"><a href="part20.htm">&lt; Previous</a><span> | </span><a href="../Medley-Primer.html">Contents</a><span> | </span><a href="part22.htm">Next &gt;</a></p><p class="nav">&nbsp;&nbsp;</p></body></html>
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-<html xmlns="http://www.w3.org/1999/xhtml"><head><meta http-equiv="Content-Type" content="text/html; charset=utf-8"/><title>19-SPY</title><link href="navigation.css" rel="stylesheet" type="text/css"/><link href="document.css" rel="stylesheet" type="text/css"/></head><body><p class="top_nav"><a href="part21.htm">&lt; Previous</a><span> | </span><a href="../Medley-Primer.html">Contents</a><span> | </span><a href="part23.htm">Next &gt;</a></p><h1 style="padding-top: 3pt;padding-left: 35pt;text-indent: 0pt;text-align: left;"><a name="bookmark21">19. WHERE DOES ALL THE TIME GO? SPY</a></h1><p style="padding-left: 35pt;text-indent: 0pt;line-height: 6pt;text-align: left;"><span><img width="640" height="8" alt="image" src="Image_134.png"/></span></p><p style="text-indent: 0pt;text-align: left;"><br/></p><p class="s3" style="padding-left: 107pt;text-indent: 0pt;line-height: 107%;text-align: left;">SPY <span class="p">is an Lisp library package that shows you where you spend your time when you run your system. It is easy to learn, and very useful when trying to make programs run</span></p><p style="padding-left: 107pt;text-indent: 0pt;line-height: 11pt;text-align: left;">faster.</p><p style="text-indent: 0pt;text-align: left;"><br/></p><h2 style="padding-left: 35pt;text-indent: 0pt;text-align: left;">How to Use Spy with the SPY Window                                                           </h2><p style="text-indent: 0pt;text-align: left;"><br/></p><p style="padding-top: 4pt;padding-left: 107pt;text-indent: 0pt;line-height: 107%;text-align: left;">The function <span class="s3">SPY.BUTTON </span>brings up a small window which you will be prompted to position. Using the mouse buttons in this window controls the action of the <span class="s3">SPY</span></p><p style="padding-bottom: 3pt;padding-left: 107pt;text-indent: 0pt;text-align: left;">program. When you are not using <span class="s3">SPY</span>, the window appears as in Figure 19.1.</p><p style="padding-left: 276pt;text-indent: 0pt;text-align: left;"><span><img width="85" height="89" alt="image" src="Image_135.gif"/></span></p><p style="padding-top: 9pt;padding-left: 111pt;text-indent: 0pt;text-align: center;">Figure 19.1. <span class="s3">SPY </span>Window When <span class="s3">SPY </span>is Not Being Used</p><p style="text-indent: 0pt;text-align: left;"><br/></p><p style="padding-left: 107pt;text-indent: 0pt;text-align: left;">To use <span class="s3">SPY</span>, click either the left or middle mouse button with the mouse cursor in the</p><p class="s3" style="padding-left: 107pt;text-indent: 0pt;line-height: 107%;text-align: left;">SPY <span class="p">window. The window will appear as in Figure 19.2, and means that </span>SPY <span class="p">is accumulating data about your program.</span></p><p style="text-indent: 0pt;text-align: left;"><br/></p><p style="padding-left: 278pt;text-indent: 0pt;text-align: left;"><span><img width="85" height="89" alt="image" src="Image_136.gif"/></span></p><p style="text-indent: 0pt;text-align: left;"><br/></p><p style="padding-left: 111pt;text-indent: 0pt;text-align: center;">Figure 19.2. <span class="s3">SPY </span>Window When <span class="s3">SPY </span>is Being Used</p><p style="text-indent: 0pt;text-align: left;"><br/></p><p style="padding-left: 107pt;text-indent: 0pt;text-align: left;">To turn off <span class="s3">SPY </span>after the program has run, again click a mouse button in the <span class="s3">SPY</span></p><p style="padding-left: 107pt;text-indent: 0pt;text-align: left;">window. The eye closes, and you are asked to position another window. This window contains <span class="s3">SPY</span>’s results. An example of the resulting window is shown in Figure 19.3.</p><p class="s7" style="padding-top: 3pt;padding-left: 35pt;text-indent: 0pt;text-align: left;"> 19. WHERE DOES ALL THE TIME GO? SPY                                                                                                          </p><p style="text-indent: 0pt;text-align: left;"><br/></p><p style="padding-left: 108pt;text-indent: 0pt;text-align: left;"><span><img width="477" height="204" alt="image" src="Image_137.gif"/></span></p><p style="text-indent: 0pt;text-align: left;"><br/></p><p style="padding-top: 4pt;padding-left: 195pt;text-indent: 0pt;text-align: left;">Figure 19.3. Window Produced After Running <span class="s3">SPY</span></p><p style="text-indent: 0pt;text-align: left;"><br/></p><p style="padding-left: 107pt;text-indent: 0pt;text-align: justify;">This window is scrollable horizontally and vertically. This is useful, since the whole tree does not fit in the window. If a part that you want to see is not shown, you can scroll the window to show the part you want to see.</p><p style="text-indent: 0pt;text-align: left;"><br/></p><h2 style="padding-left: 35pt;text-indent: 0pt;text-align: left;">How to Use SPY from the Lisp Top Level                                                      </h2><p style="text-indent: 0pt;text-align: left;"><br/></p><p class="s3" style="padding-top: 4pt;padding-left: 107pt;text-indent: 0pt;line-height: 107%;text-align: left;">SPY <span class="p">can also be run while a specific function or system is being used. To do this, type the function </span>WITH.SPY<span class="p">:</span></p><p class="s3" style="padding-top: 7pt;padding-left: 143pt;text-indent: 0pt;text-align: left;">(WITH.SPY <span class="s4">form</span>)</p><p style="padding-top: 7pt;padding-left: 107pt;text-indent: 0pt;text-align: left;">The expression used for form should be the call to begin running the function or system that SPY is to watch. If you watch the <span class="s3">SPY </span>window, the eye will blink! To see your</p><p style="padding-left: 107pt;text-indent: 0pt;text-align: left;">results, run the function <span class="s3">SPY.TREE</span>. To do this, type:</p><p class="s3" style="padding-top: 7pt;padding-left: 143pt;text-indent: 0pt;text-align: left;">(SPY.TREE)</p><p style="padding-top: 7pt;padding-left: 107pt;text-indent: 0pt;line-height: 107%;text-align: left;">The results of the last running of <span class="s3">SPY </span>will be displayed. If you do this, and <span class="s3">SPY.TREE </span>returns (no <span class="s3">SPY </span>samples have been gathered), your function ran too fast for <span class="s3">SPY </span>to follow.</p><p style="text-indent: 0pt;text-align: left;"><br/></p><h2 style="padding-left: 35pt;text-indent: 0pt;text-align: left;">Interpreting SPY’s Results                                                                              </h2><p style="padding-top: 9pt;padding-left: 107pt;text-indent: 0pt;text-align: left;">Each node in the tree is a box that contains, first, the percentage of time spent running that particular function, and second, the function name. There are two modes that can be used to display this tree.</p><p style="padding-top: 7pt;padding-left: 107pt;text-indent: 0pt;text-align: left;">The default mode is cumulative. In this mode, each percentage is the amount of time</p><p style="padding-left: 107pt;text-indent: 0pt;text-align: left;">that function spent on top of the stack, plus the amount of time spent by the functions it calls. The second mode is individual. To change the mode to individual, point to the title bar of the window, and press the middle mouse button. Choose <span class="s3">Individual </span>from the menu that appears. In this mode, the percentage shown is the amount of time the</p><p style="padding-left: 107pt;text-indent: 0pt;text-align: left;">function spent on the top of the stack.</p><p style="padding-top: 7pt;padding-left: 107pt;text-indent: 0pt;text-align: left;">To look at a single branch of the tree, point with the mouse cursor at one of the nodes of the tree, and press the right mouse button. From the menu that appears, choose the</p><p style="text-indent: 0pt;text-align: left;"><br/></p><p style="padding-left: 35pt;text-indent: 0pt;line-height: 1pt;text-align: left;"><span><img width="665" height="1" alt="image" src="Image_138.png"/></span></p><p class="s8" style="padding-left: 35pt;text-indent: 0pt;text-align: left;">19-2 <span class="s6">Medley for the Novice, Release 2.0</span></p><p class="s7" style="padding-top: 3pt;padding-left: 35pt;text-indent: 0pt;text-align: left;">                                                                                                           19. WHERE DOES ALL THE TIME GO? SPY</p><p style="text-indent: 0pt;text-align: left;"><br/></p><p style="padding-top: 4pt;padding-left: 107pt;text-indent: 0pt;line-height: 107%;text-align: left;">option <span class="s3">SubTree</span>. Another <span class="s3">SPY </span>window will appear, with just this branch of the tree in it.</p><p style="padding-top: 6pt;padding-left: 107pt;text-indent: 0pt;text-align: left;">Another way to focu s within the tree is to remove branches from the tree. To do this, point to the node at the top of the branch you would like to delete. Press the middle mouse button, and choose <span class="s3">Delete </span>from the menu that appears.</p><p style="padding-top: 7pt;padding-left: 107pt;text-indent: 0pt;text-align: left;">There are also different amounts of &quot;merging&quot; of functions that can be done in the</p><p style="padding-left: 107pt;text-indent: 0pt;text-align: left;">window. A function can be called by another function more than once. The amount of merging determines where the subfunction, and the functions that it calls, appear in the tree, and how often. (For a detailed explanation of merging, see the <i>Lisp Library Packages Manual</i>.)</p><p class="nav">&nbsp;&nbsp;</p><p class="nav">&nbsp;</p><p class="nav"><a href="part21.htm">&lt; Previous</a><span> | </span><a href="../Medley-Primer.html">Contents</a><span> | </span><a href="part23.htm">Next &gt;</a></p><p class="nav">&nbsp;&nbsp;</p></body></html>
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-<html xmlns="http://www.w3.org/1999/xhtml"><head><meta http-equiv="Content-Type" content="text/html; charset=utf-8"/><title>20-FREE-MENUS</title><link href="navigation.css" rel="stylesheet" type="text/css"/><link href="document.css" rel="stylesheet" type="text/css"/></head><body><p class="top_nav"><a href="part22.htm">&lt; Previous</a><span> | </span><a href="../Medley-Primer.html">Contents</a><span> | </span><a href="part24.htm">Next &gt;</a></p><h1 style="padding-top: 3pt;padding-left: 35pt;text-indent: 0pt;text-align: left;"><a name="bookmark22">20. FREE MENUS</a></h1><p style="padding-left: 35pt;text-indent: 0pt;line-height: 6pt;text-align: left;"><span><img width="640" height="8" alt="image" src="Image_139.png"/></span></p><p style="text-indent: 0pt;text-align: left;"><br/></p><p style="padding-top: 15pt;padding-left: 107pt;text-indent: 0pt;text-align: left;">Free Menu is a library package that is even more flexible than the regular menu package. It allows you to create menus with different types of items in them, and</p><p style="padding-left: 107pt;text-indent: 0pt;text-align: left;">format s them as you require. Free menus are particularly useful when you want a &quot;fill in the form&quot; type interaction with the user.</p><p style="padding-top: 7pt;padding-left: 107pt;text-indent: 0pt;text-align: left;">Each menu item is described with a list of properties and values. The following example will give you an idea of the structure of the description list, and some of your options.</p><p style="padding-left: 107pt;text-indent: 0pt;text-align: left;">The most commonly used properties, and each type of menu item will be described in the Parts of a Free Menu Item and Types of Free Menu Items section below.</p><p style="text-indent: 0pt;text-align: left;"><br/></p><h2 style="padding-left: 35pt;text-indent: 0pt;text-align: left;">Free Menu Example                                                                                          </h2><p style="padding-top: 9pt;padding-left: 107pt;text-indent: 0pt;text-align: left;">Free menus can be created and formatted automatically! It is done with the function</p><p class="s3" style="padding-left: 107pt;text-indent: 0pt;text-align: left;">FM.FORMATMENU<span class="p">. This function takes one argument, a description of the menu. The</span></p><p style="padding-left: 107pt;text-indent: 0pt;text-align: left;">description is a list of lists; each internal list describes one row of the free menu. A free menu row can have more than one item in it, so there are really lists of lists of lists! It really isn’t hard, though, as you can see from the following example:</p><p class="s3" style="padding-top: 7pt;padding-left: 167pt;text-indent: -24pt;line-height: 88%;text-align: left;">(SETQ ExampleMenu (FM.FORMATMENU</p><p class="s3" style="padding-left: 215pt;text-indent: -24pt;line-height: 88%;text-align: left;">’(((TYPE TITLE LABEL TitlesDoNothing) TYPE 3STATE LABEL Example3State))</p><p class="s3" style="padding-left: 203pt;text-indent: 0pt;line-height: 10pt;text-align: left;">((TYPE EDITSTART LABEL PressToStartEditing</p><p class="s3" style="padding-left: 209pt;text-indent: 96pt;line-height: 88%;text-align: left;">ITEMS (EDITEM)) (TYPE EDIT ID EDITEM LABEL &quot;&quot;))</p><p class="s3" style="padding-left: 191pt;text-indent: 0pt;line-height: 10pt;text-align: left;">(WINDOWPROPS TITLE &quot;Example Does Nothing&quot;))))</p><p style="padding-top: 5pt;padding-left: 107pt;text-indent: 0pt;line-height: 107%;text-align: justify;">The first row has two items in it: one is a <span class="s3">TITLE</span>, and the second is a <span class="s3">3STATE </span>item. The second row also has two items. The second, the <span class="s3">EDIT </span>item, is invisible, because its label is an empty string. The caret will appear for editing, however, if the <span class="s3">EDITSTART </span>item is chosen. Windowprops can appear as part of the description of the menu, because a</p><p style="padding-left: 107pt;text-indent: 0pt;line-height: 11pt;text-align: justify;">menu is, affer all, just a special window. You can specify not only the title with</p><p class="s3" style="padding-left: 107pt;text-indent: 0pt;text-align: justify;">WINDOWPROPS<span class="p">, but also the position of the free menu, using the &quot;left&quot; and &quot;bottom&quot;</span></p><p style="padding-left: 106pt;text-indent: 0pt;text-align: left;">properties, and the width of the border in pixels, with the &quot;border&quot; property. Evaluating this expression will return a window. You can see the menu by using the function <span class="s3">OPENW</span>. The following example illustrates this:</p><p style="text-indent: 0pt;text-align: left;"><br/></p><p style="padding-left: 235pt;text-indent: 0pt;text-align: left;">Figure 20.1. Example Free Menu</p><p style="text-indent: 0pt;text-align: left;"><br/></p><p style="padding-left: 107pt;text-indent: 0pt;text-align: justify;">The next example shows you what the menu looks like after the <span class="s3">EDITSTART </span>item,</p><p class="s3" style="padding-left: 106pt;text-indent: 0pt;text-align: justify;">PressToStartEditing<span class="p">, has been chosen.</span></p><p style="text-indent: 0pt;text-align: left;"><br/></p><p style="padding-top: 4pt;padding-left: 185pt;text-indent: 0pt;text-align: left;">Figure 20.2. Free menu after <span class="s3">EDITSTART </span>Item Chosen</p><p style="padding-top: 7pt;padding-left: 107pt;text-indent: 0pt;line-height: 107%;text-align: left;">The following example shows the menu with the <span class="s3">3STATE </span>item in its <span class="s3">T </span>state, with the item highlighted. (In the previous bitmaps, it was in its neutral state.)</p><p style="padding-left: 35pt;text-indent: 0pt;line-height: 11pt;text-align: left;">.</p><p style="text-indent: 0pt;text-align: left;"><br/></p><p style="padding-top: 4pt;padding-left: 182pt;text-indent: 0pt;text-align: left;">Figure 20.3. Free menu with <span class="s3">3STATE </span>Item in its <span class="s3">T </span>State</p><p style="text-indent: 0pt;text-align: left;"><br/></p><p style="padding-top: 4pt;padding-left: 107pt;text-indent: 0pt;line-height: 107%;text-align: left;">Finally, Figure 20.4 shows the <span class="s3">3STATE </span>item in its <span class="s3">NIL </span>state, with a diagonal line through the item</p><p style="text-indent: 0pt;text-align: left;"><br/></p><p style="padding-left: 169pt;text-indent: 0pt;text-align: left;">Figure 20.4 Free menu with the <span class="s3">3STATE </span>item in its <span class="s3">NIL </span>State</p><p style="padding-top: 7pt;padding-left: 107pt;text-indent: 0pt;text-align: left;">If you would like to specify the layout yourself, you can do that too. See the <i>Lisp Library Packages Manual </i>for more information.</p><p style="text-indent: 0pt;text-align: left;"><br/></p><h2 style="padding-left: 35pt;text-indent: 0pt;text-align: left;">Parts of a Free Menu Item                                                                                </h2><p style="padding-top: 9pt;padding-left: 107pt;text-indent: 0pt;text-align: left;">There are eight different types of items that you can use in a free menu. No matter</p><p style="padding-left: 107pt;text-indent: 0pt;text-align: left;">what type, the menu item is easily described by a list of properties, and values. Some of the properties you will use most often are listed below:</p><p style="text-indent: 0pt;text-align: left;"><br/></p><p class="s3" style="padding-left: 191pt;text-indent: -84pt;line-height: 107%;text-align: left;">LABEL <span class="p">Required for every type of menu item. It is the atom, string, or bitmap that appears as a menu selection.</span></p><p class="s3" style="padding-top: 6pt;padding-left: 191pt;text-indent: -84pt;line-height: 107%;text-align: left;">TYPE <span class="p">One of eight types of menu items. Each of these are described in the section below.</span></p><p class="s3" style="padding-top: 6pt;padding-left: 191pt;text-indent: -84pt;line-height: 107%;text-align: left;">MESSAGE <span class="p">The message that appears in the prompt window if a mouse button is held down over the item.</span></p><p class="s3" style="padding-top: 6pt;padding-left: 191pt;text-indent: -84pt;line-height: 107%;text-align: left;">ID <span class="p">An item’s unique identifier. An ID is needed for certain types of menu items.</span></p><p class="s3" style="padding-top: 6pt;padding-left: 191pt;text-indent: -84pt;line-height: 107%;text-align: left;">ITEMS <span class="p">Used to list a series of choices for an </span>NCHOOSE <span class="p">item, and to list the ID’s of the editable items for an </span>EDITSTART <span class="p">item.</span></p><p class="s3" style="padding-top: 7pt;padding-left: 107pt;text-indent: 0pt;text-align: left;">SELECTEDFN <span class="p">The name of the function to be called if the item is chosen.</span></p><p style="text-indent: 0pt;text-align: left;"><br/></p><h2 style="padding-left: 35pt;text-indent: 0pt;text-align: left;">Types of Free Menu Items                                                                               </h2><p style="padding-top: 9pt;padding-left: 107pt;text-indent: 0pt;text-align: left;">Each type of menu item is described in the following list, including an example description list for each one.</p><p style="text-indent: 0pt;text-align: left;"><br/></p><p class="s3" style="padding-left: 107pt;text-indent: 0pt;text-align: left;">MOMENTARY <span class="p">This is the familiar sort of menu item. When it is selected, the</span></p><p style="padding-left: 191pt;text-indent: 0pt;text-align: left;">function stored with it is called. A description for the function that creates and format s the menu looks like this:</p><p class="s3" style="padding-top: 6pt;padding-left: 191pt;text-indent: 0pt;line-height: 11pt;text-align: left;">(TYPE MOMENTARY</p><p class="s3" style="padding-left: 215pt;text-indent: 0pt;line-height: 10pt;text-align: left;">LABEL Blink-N-Ring</p><p class="s3" style="padding-left: 215pt;text-indent: 0pt;line-height: 88%;text-align: left;">MESSAGE &quot;Blinks the screen and rings bells&quot; SELECTEDFN RINGBELLS)</p><p class="s3" style="padding-top: 6pt;padding-left: 191pt;text-indent: -84pt;line-height: 106%;text-align: left;">TOGGLE <span class="p">This menu item has two states, </span>T <span class="p">and </span>NIL<span class="p">. The default state is </span>NIL<span class="p">, but choosing the item toggles its state. The following is an example description list, without code for the </span>SELECTEDFN <span class="p">function, for this type of item:</span></p><p class="s3" style="padding-top: 6pt;padding-left: 191pt;text-indent: 0pt;line-height: 11pt;text-align: left;">(TYPE TOGGLE</p><p class="s3" style="padding-left: 215pt;text-indent: 0pt;line-height: 88%;text-align: left;">LABEL DwimDisable SELECTEDFN ChangeDwimState)</p><p class="s6" style="padding-top: 3pt;text-indent: 0pt;text-align: right;">20. FREE MENUS</p><p style="padding-left: 35pt;text-indent: 0pt;line-height: 1pt;text-align: left;"><span><img width="665" height="1" alt="image" src="Image_140.png"/></span></p><p style="text-indent: 0pt;text-align: left;"><br/></p><p class="s3" style="padding-left: 190pt;text-indent: -84pt;line-height: 107%;text-align: left;">3STATE <span class="p">This type of menu item has three states, </span>NEUTRAL <span class="p">, </span>T<span class="p">, and </span>NIL. NEUTRAL <span class="p">is the default state. </span>T <span class="p">is shown by highlighting the item, and </span>NIL <span class="p">is shown with diagonal lines. The following is an example</span></p><p style="padding-left: 191pt;text-indent: 0pt;line-height: 107%;text-align: left;">description list, without code for the <span class="s3">SELECTEDFN </span>function, for this type of item:</p><p class="s3" style="padding-top: 6pt;padding-left: 190pt;text-indent: 0pt;line-height: 11pt;text-align: left;">(TYPE 3STATE</p><p class="s3" style="padding-left: 214pt;text-indent: 0pt;line-height: 88%;text-align: left;">LABEL CorrectProgramAllOrNoSpelling SELECTEDFN ToggleSpellingCorrection)</p><p class="s3" style="padding-top: 6pt;padding-left: 191pt;text-indent: -84pt;line-height: 107%;text-align: left;">TITLE <span class="p">This menu item appears on the menu as dummy text. It does nothing when chosen. An example of its description:</span></p><p class="s3" style="padding-top: 6pt;padding-left: 190pt;text-indent: 0pt;text-align: left;">(TYPE TITLE LABEL &quot;Choices:&quot;)</p><p class="s3" style="padding-top: 7pt;padding-left: 191pt;text-indent: -84pt;line-height: 107%;text-align: left;">NWAY <span class="p">A group of items, nnly one of which can be chosen at a time. The items in the </span>NWAY <span class="p">group should all have an ID field, and the ID’s</span></p><p style="padding-left: 190pt;text-indent: 0pt;text-align: left;">should be the same. For example, to set up a menu that would allow the user to choose between Helvetica, Gacha, Modern, and Classic font s, the descriptions might look like this (once again, without the code for the <span class="s3">SELECTEDFN</span>):</p><p class="s3" style="padding-top: 7pt;padding-left: 190pt;text-indent: 0pt;line-height: 11pt;text-align: left;">(TYPE NWAY ID FONTCHOICE</p><p class="s3" style="padding-left: 214pt;text-indent: 0pt;line-height: 88%;text-align: left;">LABEL Helvetica SELECTEDFN ChangeFont)</p><p class="s3" style="padding-left: 190pt;text-indent: 0pt;line-height: 10pt;text-align: left;">(TYPE NWAY ID FONTCHOICE</p><p class="s3" style="padding-left: 214pt;text-indent: 0pt;line-height: 10pt;text-align: left;">LABEL Gacha</p><p class="s3" style="padding-left: 190pt;text-indent: 24pt;line-height: 88%;text-align: left;">SELECTEDFN ChangeFont) (TYPE NWAY ID FONTCHOICE)</p><p class="s3" style="padding-left: 214pt;text-indent: 0pt;line-height: 88%;text-align: left;">LABEL Modern SELECTEDFN ChangeFont)</p><p class="s3" style="padding-left: 190pt;text-indent: 0pt;line-height: 10pt;text-align: left;">(TYPE NWAY ID FONTCHOICE</p><p class="s3" style="padding-left: 214pt;text-indent: 0pt;line-height: 88%;text-align: left;">LABEL Classic SELECTEDFN Changefont)</p><p style="text-indent: 0pt;text-align: left;"><br/></p><p class="s3" style="padding-left: 191pt;text-indent: -84pt;line-height: 107%;text-align: justify;">NCHOOSE <span class="p">This type of menu item is like </span>NWAY <span class="p">except that the choices are given to the user in a submenu. The list to specify an </span>NCHOOSE <span class="p">menu item that is analogous to the </span>NWAY <span class="p">item above might look like this:</span></p><p class="s3" style="padding-top: 7pt;padding-left: 190pt;text-indent: 0pt;line-height: 11pt;text-align: left;">(TYPE NCHOOSE</p><p class="s3" style="padding-left: 214pt;text-indent: 0pt;line-height: 10pt;text-align: left;">LABEL FontChoices</p><p class="s3" style="padding-left: 214pt;text-indent: 0pt;line-height: 88%;text-align: left;">ITEMS Helvetica Gacha Modern Classic) SELECTDFN Changefont)</p><p class="s3" style="padding-top: 6pt;padding-left: 190pt;text-indent: -84pt;line-height: 107%;text-align: left;">EDITSTART <span class="p">When this type of menu itein is chosen, it activates another type of item, an </span>EDIT <span class="p">item. The </span>EDIT <span class="p">item or items associated with an </span>EDITSTART <span class="p">item have their lD’s listed on the </span>EDITSTART <span class="p">’s </span>ITEMS <span class="p">property. An example description list is:</span></p><p class="s3" style="padding-top: 6pt;padding-left: 190pt;text-indent: 0pt;text-align: left;">(TYPE EDITSTART LABEL &quot;Function to add?&quot; ITEMS (Fn))</p><p class="s3" style="padding-top: 7pt;padding-left: 106pt;text-indent: 0pt;text-align: left;">EDIT <span class="p">This type of menu item can actually be edited by you. It is often</span></p><p style="padding-left: 190pt;text-indent: 0pt;line-height: 106%;text-align: left;">associated with an <span class="s3">EDITSTART </span>item (see above), but the caret that prompts for input will also appear if the item itself is chosen. An <span class="s3">EDIT </span>item follows the same editing conventions as editing in</p><p style="padding-left: 191pt;text-indent: 0pt;text-align: left;">Executive Window:</p><p class="s10" style="padding-top: 7pt;padding-left: 191pt;text-indent: 0pt;text-align: left;">Add characters <span class="p">by typing them at the caret.</span></p><p class="s10" style="padding-top: 7pt;padding-left: 190pt;text-indent: 0pt;text-align: left;">Move the caret <span class="p">by pointing the mouse at the new position, and clicking the left button.</span></p><p style="text-indent: 0pt;text-align: left;"><br/></p><p class="s10" style="padding-top: 4pt;padding-left: 191pt;text-indent: 0pt;text-align: left;">Delete characters <span class="p">from the caret to the mouse by pressing the right button of the mouse. Delete a character behind the caret by pressing the backspace key.</span></p><p class="s10" style="padding-top: 7pt;padding-left: 191pt;text-indent: 0pt;text-align: left;">Stop editing <span class="p">by typing a carriage return, a Control-X, or by choosing another item from the menu.</span></p><p style="padding-top: 7pt;padding-left: 191pt;text-indent: 0pt;text-align: left;">An example description list for this type of item is:</p><p class="s3" style="padding-top: 7pt;padding-left: 191pt;text-indent: 0pt;text-align: left;">(TYPE EDIT ID Fn LABEL **)</p><p class="nav">&nbsp;&nbsp;</p><p class="nav">&nbsp;</p><p class="nav"><a href="part22.htm">&lt; Previous</a><span> | </span><a href="../Medley-Primer.html">Contents</a><span> | </span><a href="part24.htm">Next &gt;</a></p><p class="nav">&nbsp;&nbsp;</p></body></html>
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-<html xmlns="http://www.w3.org/1999/xhtml"><head><meta http-equiv="Content-Type" content="text/html; charset=utf-8"/><title>21-GRAPHER</title><link href="navigation.css" rel="stylesheet" type="text/css"/><link href="document.css" rel="stylesheet" type="text/css"/></head><body><p class="top_nav"><a href="part23.htm">&lt; Previous</a><span> | </span><a href="../Medley-Primer.html">Contents</a><span> | </span><a href="part25.htm">Next &gt;</a></p><h1 style="padding-top: 3pt;padding-left: 35pt;text-indent: 0pt;text-align: left;"><a name="bookmark23">21. THE GRAPHER</a></h1><p style="padding-left: 35pt;text-indent: 0pt;line-height: 6pt;text-align: left;"><span><img width="640" height="8" alt="image" src="Image_141.png"/></span></p><p style="text-indent: 0pt;text-align: left;"><br/></p><h2 style="padding-top: 14pt;padding-left: 35pt;text-indent: 0pt;text-align: left;">Say it with Graphs                                                                                            </h2><p style="text-indent: 0pt;text-align: left;"><br/></p><p style="padding-top: 4pt;padding-left: 107pt;text-indent: 0pt;text-align: justify;">Grapher is a collection of functions for creating and displaying graphs, networks of nodes and links. Grapher also allows you to associate program behavior with mouse selection of graph nodes. To load this package, type</p><p class="s3" style="padding-top: 6pt;padding-left: 143pt;text-indent: 0pt;text-align: left;">(FILESLOAD GRAPHER)</p><p style="padding-top: 7pt;padding-bottom: 3pt;padding-left: 107pt;text-indent: 0pt;text-align: left;">Figure 21-1 shows a simple graph.</p><p style="padding-left: 178pt;text-indent: 0pt;text-align: left;"><span><img width="355" height="217" alt="image" src="Image_142.gif"/></span></p><p style="text-indent: 0pt;text-align: left;"><br/></p><p style="padding-left: 249pt;text-indent: 0pt;text-align: left;">Figure 21-1. Simple Graph</p><p style="text-indent: 0pt;text-align: left;"><br/></p><p style="padding-left: 107pt;text-indent: 0pt;text-align: left;">In Figure 21-1 there are six nodes (<span class="s3">ANIMAL </span>, <span class="s3">MAMMAL</span>, <span class="s3">DOG</span>, <span class="s3">CAT</span>, <span class="s3">FISH</span>, and <span class="s3">BIRD</span>)</p><p style="padding-left: 107pt;text-indent: 0pt;text-align: left;">connected by five links. A <span class="s3">GRAPH </span>is a record containing several fields. Perhaps the most</p><p style="padding-left: 107pt;text-indent: 0pt;line-height: 107%;text-align: left;">important field is <span class="s3">GRAPHNODES </span>—which is itself a list of <span class="s3">GRAPHNODE </span>records. Figure 21-2 illustrates these data structures. The window on top contains the fields from the simple</p><p style="padding-left: 107pt;text-indent: 0pt;line-height: 12pt;text-align: left;">graph. The window on the bottoms an inspection of the node, <span class="s3">DOG</span>.</p><p style="text-indent: 0pt;text-align: left;"><br/></p><p style="padding-left: 147pt;text-indent: 0pt;text-align: left;"><span><img width="430" height="381" alt="image" src="Image_143.gif"/></span></p><p style="padding-top: 2pt;padding-left: 209pt;text-indent: 0pt;text-align: left;">Figure 21-2. Inspecting a Graph and a Node</p><p style="text-indent: 0pt;text-align: left;"><br/></p><p style="padding-left: 107pt;text-indent: 0pt;line-height: 107%;text-align: left;">The <span class="s3">GRAPHNODE </span>data structure is described by its text (<span class="s3">NODEID </span>), what goes into it (<span class="s3">FROMNODES</span>), what leaves it (<span class="s3">TONODES </span>), and other fields that specify its looks. The basic model of graph building is to create a bunch of nodes, then layout the nodes into a</p><p style="padding-left: 107pt;text-indent: 0pt;line-height: 11pt;text-align: left;">graph, and finally display the resultant graph. This can be done in a number of ways.</p><p style="padding-left: 107pt;text-indent: 0pt;line-height: 107%;text-align: left;">One is to use the function <span class="s3">NODECREATE </span>to create the nodes, <span class="s3">LAYOUTGRAPH </span>to lay out the nodes, and <span class="s3">SHOWGRAPH </span>to display the graph. The primer shows you two simpler ways,</p><p style="padding-left: 107pt;text-indent: 0pt;line-height: 106%;text-align: left;">but please see the <i>Library Packages Manual </i>for more information about these other functions. The primer’s first method is to use <span class="s3">SHOWGRAPH </span>to display a graph with no nodes or links, then interactively add them. The second is to use the function</p><p class="s3" style="padding-left: 107pt;text-indent: 0pt;line-height: 107%;text-align: left;">LAYOUTSEXPR<span class="p">, which does the appropriate </span>NODECREATES <span class="p">and a </span>LAYOUTGRAPH<span class="p">, with a list.</span></p><p style="padding-top: 6pt;padding-left: 110pt;text-indent: 0pt;text-align: left;">The function <span class="s3">SHOWGRAPH </span>displays graphs and allows you to edit them. The syntax of</p><p class="s3" style="padding-left: 107pt;text-indent: 0pt;text-align: left;">SHOWGRAPH <span class="p">is</span></p><p class="s3" style="padding-top: 7pt;padding-left: 166pt;text-indent: -23pt;line-height: 107%;text-align: left;">(SHOWGRAPH <span class="s4">graph window lefibuttonfn middlebuttonfn topjustifyflg alloweditflg copybuttoneventfn</span>)</p><p style="padding-top: 7pt;padding-left: 107pt;text-indent: 0pt;text-align: left;">Obviously the graph structure is very complex. Here’s the easiest way to create a graph.</p><p class="s3" style="padding-top: 7pt;padding-left: 143pt;text-indent: 0pt;line-height: 11pt;text-align: left;">(SETQ MY.GRAPH NIL)</p><p class="s3" style="padding-left: 143pt;text-indent: 0pt;line-height: 11pt;text-align: left;">(SHOWGRAPH MY.GRAPH &quot;My Graph&quot; NIL NIL NIL T)</p><p style="text-indent: 0pt;text-align: left;"><br/></p><p style="padding-left: 179pt;text-indent: 0pt;text-align: left;"><span><img width="350" height="195" alt="image" src="Image_144.gif"/></span></p><p style="text-indent: 0pt;text-align: left;"><br/></p><p style="padding-top: 4pt;padding-left: 111pt;text-indent: 0pt;text-align: center;">Figure 21-3. My Graph</p><p style="text-indent: 0pt;text-align: left;"><br/></p><p style="padding-left: 107pt;text-indent: 0pt;text-align: left;">You will be prompted to create a small window as in Figure 21-3. This graph has the title My Graph. Hold down the right mouse button in the window. A menu of graph</p><p style="padding-bottom: 2pt;padding-left: 107pt;text-indent: 0pt;text-align: left;">editing operations will appear as in Figure 21-4.</p><p style="padding-left: 248pt;text-indent: 0pt;text-align: left;"><span><img width="168" height="158" alt="image" src="Image_145.gif"/></span></p><p style="text-indent: 0pt;text-align: left;"><br/></p><p style="padding-left: 205pt;text-indent: 0pt;text-align: left;">Figure 21-4. Menu of Graph Editing Operations</p><p style="padding-top: 7pt;padding-left: 107pt;text-indent: 0pt;text-align: left;">Here’s how to use this menu. The commands in this menu are easy to learn. Experiment with them!</p><p style="text-indent: 0pt;text-align: left;"><br/></p><h3 style="padding-left: 71pt;text-indent: 0pt;text-align: left;">Add a Node</h3><p style="padding-top: 5pt;padding-bottom: 1pt;padding-left: 107pt;text-indent: 0pt;line-height: 107%;text-align: left;">Start by selecting <span class="s3">Add Node </span>. Grapher will prompt you for the name of the node (see Figure 21-5.) and then its position.</p><p style="padding-left: 228pt;text-indent: 0pt;text-align: left;"><span><img width="220" height="102" alt="image" src="Image_146.gif"/></span></p><p style="text-indent: 0pt;text-align: left;"><br/></p><p style="padding-left: 111pt;text-indent: 0pt;text-align: center;">Figure 21-5. Grapher Prompts for  Name of Node  to add after Add  Node is Chosen from Graph Editing  Menu.</p><p style="text-indent: 0pt;text-align: left;"><br/></p><p style="padding-left: 107pt;text-indent: 0pt;text-align: left;">Position the node by moving the mouse cursor to the desired location and clicking a mouse button. Figure 21-6 shows the graph with two nodes added using this menu.</p><p style="text-indent: 0pt;text-align: left;"><br/></p><p style="padding-left: 270pt;text-indent: 0pt;text-align: left;"><span><img width="108" height="80" alt="image" src="Image_147.gif"/></span></p><p style="text-indent: 0pt;text-align: left;"><br/></p><p style="padding-top: 4pt;padding-left: 111pt;text-indent: 0pt;text-align: center;">Figure 21-6. Two Nodes Added  to <span class="s3">MY GRAPH </span>Using GraphEditing Menu</p><p style="text-indent: 0pt;text-align: left;"><br/></p><h3 style="padding-left: 71pt;text-indent: 0pt;text-align: left;">Add a Link</h3><p style="padding-top: 5pt;padding-left: 107pt;text-indent: 0pt;line-height: 107%;text-align: left;">Select <span class="s3">Add Link </span>from the graph editing menu. The Prompt window will prompt you to select the two nodes to be linked. (See Figure 21-7.) Do this, and the link will be added.</p><p style="text-indent: 0pt;text-align: left;"><br/></p><p style="padding-left: 157pt;text-indent: 0pt;text-align: left;"><span><img width="408" height="66" alt="image" src="Image_148.gif"/></span></p><p style="text-indent: 0pt;text-align: left;"><br/></p><p style="padding-left: 269pt;text-indent: 0pt;text-align: left;"><span><img width="108" height="80" alt="image" src="Image_149.gif"/></span></p><p style="text-indent: 0pt;text-align: left;"><br/></p><p style="padding-left: 111pt;text-indent: 0pt;text-align: center;">Figure 21-7. Prompt Window Requesting Selection of   Two Nodes  to Link, and Result</p><p style="text-indent: 0pt;text-align: left;"><br/></p><h3 style="padding-left: 71pt;text-indent: 0pt;text-align: left;">Delete a Link</h3><p style="padding-top: 5pt;padding-left: 107pt;text-indent: 0pt;line-height: 107%;text-align: left;">Select <span class="s3">Delete Link </span>from the graph editing menu. ThePrompt window will prompt you to select the two nodes that should no longer be linked. (See Figure 21-8.) Do this, and</p><p style="padding-left: 107pt;text-indent: 0pt;line-height: 11pt;text-align: left;">the link will be deleted.</p><p style="text-indent: 0pt;text-align: left;"><br/></p><p style="padding-left: 159pt;text-indent: 0pt;text-align: left;"><span><img width="405" height="58" alt="image" src="Image_150.gif"/></span></p><p style="text-indent: 0pt;text-align: left;"><br/></p><p style="padding-left: 270pt;text-indent: 0pt;text-align: left;"><span><img width="108" height="79" alt="image" src="Image_151.gif"/></span></p><p style="text-indent: 0pt;text-align: left;"><br/></p><p style="padding-left: 111pt;text-indent: 0pt;text-align: center;">Figure 21-8.  Prompt Window Requesting Selection of Link  to Delete, and Result</p><p style="text-indent: 0pt;text-align: left;"><br/></p><h3 style="padding-left: 71pt;text-indent: 0pt;text-align: left;">Delete a Node</h3><p style="padding-top: 5pt;padding-left: 107pt;text-indent: 0pt;line-height: 107%;text-align: left;">Select <span class="s3">Delete Node </span>from the graph editing menu. The Prompt window will prompt you to select the node to be aeleted. (See Figure 21-9.) Do this, and the node will be deletea.</p><p style="text-indent: 0pt;text-align: left;"><br/></p><p style="padding-left: 174pt;text-indent: 0pt;text-align: left;"><span><img width="372" height="38" alt="image" src="Image_152.gif"/></span></p><p style="padding-left: 111pt;text-indent: 0pt;text-align: center;">Figure 21.-9. Prompt to Delete a   Node</p><p style="text-indent: 0pt;text-align: left;"><br/></p><h3 style="padding-top: 4pt;padding-left: 71pt;text-indent: 0pt;text-align: left;">Move a Node</h3><p style="padding-top: 5pt;padding-left: 107pt;text-indent: 0pt;line-height: 106%;text-align: left;">Select <span class="s3">Delete Node </span>from the graph editng menu. Choose a node pointing to the it with the mouse cursor, and pressing and holding the leff mouse button. When you move the mouse cursor, the node will be dragged along. When the node is at the new position,</p><p style="padding-left: 107pt;text-indent: 0pt;line-height: 11pt;text-align: left;">release the mouse button to deposit the node.</p><p style="text-indent: 0pt;text-align: left;"><br/></p><h2 style="padding-left: 35pt;text-indent: 0pt;text-align: left;">Making a Graph from a List                                                                             </h2><p style="text-indent: 0pt;text-align: left;"><br/></p><p style="padding-top: 4pt;padding-left: 107pt;text-indent: 0pt;text-align: left;">Typically, a graph is used to display one of your program’s data structures. Here is how that is done.</p><p style="text-indent: 0pt;text-align: left;"><br/></p><p class="s3" style="padding-left: 93pt;text-indent: 0pt;text-align: center;">LAYOUTSEXPR <span class="p">takes a  list and returns a </span>GRAPH <span class="p">record. The syntax of the function is</span></p><p style="padding-top: 7pt;padding-left: 91pt;text-indent: 0pt;text-align: center;">(<span class="s3">LAYOUTSEXPR </span><i>sexpr format boxing font  motherd personald famlyd</i>)</p><p style="padding-top: 8pt;padding-left: 107pt;text-indent: 0pt;text-align: left;">For example:</p><p class="s3" style="padding-top: 8pt;padding-left: 143pt;text-indent: 0pt;line-height: 88%;text-align: left;">(SETQ ANIMAL.TREE ’(ANIMAL (MAMMAL DOG CAT) BIRD FISH)) (SETQ ANIMAL.GRAPH</p><p class="s3" style="padding-left: 143pt;text-indent: 30pt;line-height: 88%;text-align: left;">(LAYOUTSEXPR ANIMAL.TREE ’HORIZONTAL)) (SHOWGRAPH ANIMAL.GRAPH &quot;My Graph&quot; NIL NIL NIL T)</p><p style="padding-top: 6pt;padding-left: 107pt;text-indent: 0pt;text-align: left;">This is how Figure 21.1 was produced.</p><p style="text-indent: 0pt;text-align: left;"><br/></p><h2 style="padding-left: 35pt;text-indent: 0pt;text-align: left;">Incorporating Grapher into Your Program                                                     </h2><p style="padding-top: 9pt;padding-left: 107pt;text-indent: 0pt;text-align: left;">The Grapher is designed to be built into other programs. It can call functions when, for example, a mouse button is clicked on a node. The function <span class="s3">SHOWGRAPH </span>does this:</p><p class="s3" style="padding-top: 7pt;padding-left: 166pt;text-indent: -23pt;line-height: 107%;text-align: left;">(SHOWGRAPH <span class="s4">graph window lefibuttonfn middlebuttonfn topjustifyflg alloweditflg copybuttoneventfn</span>)</p><p style="padding-top: 7pt;padding-left: 107pt;text-indent: 0pt;line-height: 107%;text-align: left;">For example, the third argument to <span class="s3">SHOWGRAPH </span>, <i>leftbuttonfn</i>, is a function that is called when the left mouse button is pressed in the graph window. Try this:</p><p class="s3" style="padding-top: 7pt;padding-left: 173pt;text-indent: -30pt;line-height: 88%;text-align: left;">(DEFINEQ (My.LEFT.BUTT0N.FUNCTION (THE.GRAPHNODE THE.GRAPH.WINDOW)</p><p class="s3" style="padding-left: 203pt;text-indent: 0pt;line-height: 10pt;text-align: left;">(INSPECT THE.GRAPHNODE)))</p><p style="text-indent: 0pt;text-align: left;"><br/></p><p class="s3" style="padding-left: 173pt;text-indent: -30pt;line-height: 88%;text-align: left;">(SHOWGRAPH FAMILY.GRAPH &quot;Inspectable family&quot; (FUNCTION MY.LEFT.BUTTON.FUNCTION)</p><p class="s3" style="padding-left: 203pt;text-indent: 0pt;line-height: 10pt;text-align: left;">NIL NIL T)</p><p style="text-indent: 0pt;text-align: left;"><br/></p><p style="padding-left: 95pt;text-indent: 0pt;text-align: center;">In  the example above, <span class="s3">MY.LEFT.BUTTON.FUNCTION </span>simply calls the inspector. The</p><p style="padding-left: 107pt;text-indent: 0pt;text-align: left;">function should be written assuming it will be passed a graphnode and the window that holds the graph. Try adding a function of your own.</p><p style="text-indent: 0pt;text-align: left;"><br/></p><h2 style="padding-left: 35pt;text-indent: 0pt;text-align: left;">More of Grapher                                                                                               </h2><p style="padding-top: 9pt;padding-left: 107pt;text-indent: 0pt;text-align: left;">Some other Library packages make use of the Grapher. (Grapher needs to be loaded with the packages to use these functions.)</p><p style="text-indent: 0pt;text-align: left;"><br/></p><p style="padding-top: 4pt;padding-left: 119pt;text-indent: -12pt;line-height: 107%;text-align: left;">• <span class="s3">MASTERSCOPE</span>: The Browser package modifies the Masterscope command, <span class="s3">. SHOW PATHS</span>, so that its output is displayed as a graph (using Grapher) instead of simply printed.</p><p style="padding-top: 7pt;padding-left: 107pt;text-indent: 0pt;text-align: left;">• <span class="s3">GRAPHZOOM</span>: allows a graph to be redisplayed larger or smaller automatically.</p><p class="nav">&nbsp;&nbsp;</p><p class="nav">&nbsp;</p><p class="nav"><a href="part23.htm">&lt; Previous</a><span> | </span><a href="../Medley-Primer.html">Contents</a><span> | </span><a href="part25.htm">Next &gt;</a></p><p class="nav">&nbsp;&nbsp;</p></body></html>
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-<html xmlns="http://www.w3.org/1999/xhtml"><head><meta http-equiv="Content-Type" content="text/html; charset=utf-8"/><title>22-RESOURCE-MANAGEMENT</title><link href="navigation.css" rel="stylesheet" type="text/css"/><link href="document.css" rel="stylesheet" type="text/css"/></head><body><p class="top_nav"><a href="part24.htm">&lt; Previous</a><span> | </span><a href="../Medley-Primer.html">Contents</a><span> | </span><a href="part26.htm">Next &gt;</a></p><h1 style="padding-top: 3pt;padding-left: 35pt;text-indent: 0pt;text-align: left;"><a name="bookmark24">22. RESOURCE MANAGEMENT</a></h1><p style="padding-left: 35pt;text-indent: 0pt;line-height: 6pt;text-align: left;"><span><img width="640" height="8" alt="image" src="Image_153.png"/></span></p><p style="text-indent: 0pt;text-align: left;"><br/></p><h2 style="padding-left: 35pt;text-indent: 0pt;text-align: left;">Naming Variables and Records                                                                      </h2><p style="padding-top: 9pt;padding-left: 107pt;text-indent: 0pt;text-align: left;">You will find times when one environment simultaneously hosts a number of different programs. Running a demo of several programs, or reloading the entire Medley</p><p style="padding-left: 107pt;text-indent: 0pt;text-align: left;">environment from floppies when it contains several different programs, are two</p><p style="padding-left: 107pt;text-indent: 0pt;text-align: left;">examples that could, if you aren’t careful, provide a few problems. Here are a few tips on how to prevent problems:</p><p style="text-indent: 0pt;text-align: left;"><br/></p><p style="padding-left: 119pt;text-indent: -10pt;line-height: 107%;text-align: justify;">• If you change the value of a system variable, <span class="s3">MENUHELDWAIT </span>for example, or connect to a directory other than <span class="s3">{DSK}&lt;LISPFILES&gt; </span>, write a function to reset the variable or directory to its original value. Run this function when you are finished working.</p><p style="padding-left: 119pt;text-indent: 0pt;line-height: 11pt;text-align: justify;">This is especially important if you change any of the system menus.</p><p style="text-indent: 0pt;text-align: left;"><br/></p><p style="padding-left: 119pt;text-indent: -10pt;text-align: left;">• Do not redefine Medley functions or CLISP words. Remember, if you reset an atom’s value or function definition at the top level (in the Executive Window), the message (<i>Some.Crucial.Function.Or.Variable </i><span class="s3">redefined) </span>, appears. If this is not what you wanted, type <span class="s9">UNDO </span>immediately!</p><p style="padding-top: 10pt;padding-left: 119pt;text-indent: 0pt;text-align: left;">If, however, you reset the value or function definition of an atom inside your program, a warning message will not be printed.</p><p style="text-indent: 0pt;text-align: left;"><br/></p><p style="padding-left: 119pt;text-indent: -10pt;text-align: left;">• Make the atom names in your programs as unique as possible. To do this without filling your program with unreadable names that noone, including you, can</p><p style="padding-left: 119pt;text-indent: 0pt;text-align: left;">remember, prefix your variable names with the initials of your program. Even then, check to see that they are not already being used with the function <span class="s3">BOUNDP </span>. For</p><p style="padding-left: 119pt;text-indent: 0pt;text-align: left;">example, type:</p><p class="s3" style="padding-top: 7pt;padding-left: 179pt;text-indent: 0pt;text-align: left;">(BOUNDP ’BackgroundMenu)</p><p style="text-indent: 0pt;text-align: left;"><br/></p><p style="padding-left: 119pt;text-indent: 0pt;text-align: left;">This atom is bound to the menu that appears when you press the leff mouse button</p><p style="padding-left: 119pt;text-indent: 0pt;text-align: left;">when the mouse cursor is not in any window. <span class="s3">BOUND</span>P returns <span class="s3">T</span>. <span class="s3">BOUNDP </span>returns <span class="s3">NIL</span></p><p style="padding-left: 119pt;text-indent: 0pt;text-align: left;">if its argument does not currently have a value.</p><p style="text-indent: 0pt;text-align: left;"><br/></p><p style="padding-left: 108pt;text-indent: 0pt;text-align: left;">• Make your function names as unique as possible. Once again, prefixing function</p><p style="padding-left: 119pt;text-indent: 0pt;text-align: left;">names with the initials of your program can be helpful in making them unique, but even so, check to see that they are not already being used. <span class="s3">GETD </span>is the Interlisp-D function that returns the function definition of an atom, if it has one. If an atom has no function definition, <span class="s3">GETD </span>returns <span class="s3">NIL</span>. For example, type:</p><p class="s3" style="padding-top: 7pt;padding-left: 143pt;text-indent: 0pt;text-align: left;">(GETD ’CAR)</p><p style="padding-top: 7pt;padding-left: 119pt;text-indent: 0pt;text-align: left;">A non-<span class="s3">NIL </span>value is returned. The atom <span class="s3">CAR </span>already has a function definition.</p><p style="text-indent: 0pt;text-align: left;"><br/></p><p style="padding-left: 119pt;text-indent: -11pt;line-height: 107%;text-align: left;">• Use complete record field names in record <span class="s3">FETCH</span>es and <span class="s3">REPLACE </span>s when your code is not compiled. A complete record field name is a list consisting of the record</p><p style="padding-left: 119pt;text-indent: 0pt;line-height: 11pt;text-align: justify;">declaration name and the field name. Consider the following example:</p><p class="s3" style="padding-top: 7pt;padding-left: 143pt;text-indent: 0pt;line-height: 10pt;text-align: left;">(REC0RD NAME (FIRST LAST))</p><p class="s3" style="padding-left: 143pt;text-indent: 0pt;line-height: 88%;text-align: left;">(SETQ MyName (create Name FIRST <span class="s2"></span>’John LAST <span class="s2"></span>’Smith)) (FETCH (NAME FIRST) OF MyName)</p><p style="padding-top: 9pt;padding-left: 119pt;text-indent: -11pt;text-align: left;">• Avoid reusing names that are field names of Lisp system records. A few examples of system records follow. Do not reuse these names.</p><p class="s3" style="padding-top: 7pt;padding-left: 143pt;text-indent: 0pt;line-height: 88%;text-align: left;">(RECORD REGION (LEFT BOTTOM WIDTH HEIGHT)) (RECORD POSITION (XCOORD YCOORD))</p><p style="text-indent: 0pt;text-align: left;"><br/></p><p class="s3" style="padding-top: 4pt;padding-left: 143pt;text-indent: 0pt;text-align: left;">(RECORD IMAGEOBJ (- BITMAP -<span class="p">)))</span></p><p style="text-indent: 0pt;text-align: left;"><br/></p><p style="padding-left: 119pt;text-indent: -11pt;text-align: left;">• When you select a record name and field names for a new record, check to see whether those names have already been used.</p><p style="text-indent: 0pt;text-align: left;"><br/></p><p style="padding-left: 119pt;text-indent: 0pt;line-height: 107%;text-align: left;">Call the function <span class="s3">RECLOOK</span>, with your record name as an argument, in the Executive Window (see Figure 22-1). If your record name is already a record, the record</p><p style="padding-left: 119pt;text-indent: 0pt;line-height: 12pt;text-align: left;">definition will be returned; otherwise the function will return <span class="s3">NIL</span>.</p><p style="text-indent: 0pt;text-align: left;"><br/></p><p style="padding-left: 191pt;text-indent: 0pt;text-align: left;"><span><img width="329" height="142" alt="image" src="Image_154.gif"/></span></p><p style="text-indent: 0pt;text-align: left;"><br/></p><p style="padding-left: 230pt;text-indent: 0pt;text-align: left;">Figure 22-1. Response to <span class="s3">RECLOCK</span></p><p style="text-indent: 0pt;text-align: left;"><br/></p><p style="padding-top: 7pt;padding-left: 119pt;text-indent: 0pt;line-height: 106%;text-align: left;">Call the function <span class="s3">FIELDLOOK </span>with your new field name in the Executive Window (see Figure 22-2). If your field name is already a field name in another record, the record definition will be returned; otherwise the function will return <span class="s3">NIL</span>.</p><p style="text-indent: 0pt;text-align: left;"><br/></p><p style="padding-left: 188pt;text-indent: 0pt;text-align: left;"><span><img width="329" height="142" alt="image" src="Image_155.gif"/></span></p><p style="padding-top: 9pt;padding-left: 226pt;text-indent: 0pt;text-align: left;">Figure 22-2. Response to <span class="s3">FIELDLOOK</span></p><p style="text-indent: 0pt;text-align: left;"><br/></p><h2 style="padding-left: 35pt;text-indent: 0pt;text-align: left;">Some Space and Time Considerations                                                          </h2><p style="padding-top: 9pt;padding-left: 107pt;text-indent: 0pt;text-align: justify;">In order for your program to run at maximum speed, you must efficiently use the space available on the system. The following section points out areas that you may not know are wasting valuable space, and tips on how to prevent this waste.</p><p style="padding-top: 7pt;padding-left: 107pt;text-indent: 0pt;text-align: left;">Often programs are written so that new data structures are created each time the</p><p style="padding-left: 107pt;text-indent: 0pt;text-align: left;">program is run. This is wasteful. Write your programs so that they only create new variables and other data structures conditionally. If a structure has already been</p><p style="padding-left: 107pt;text-indent: 0pt;text-align: left;">created, use it instead of creating a new one.</p><p style="padding-top: 7pt;padding-left: 107pt;text-indent: 0pt;text-align: left;">Some time and space can be saved by changing your <span class="s3">RECORD </span>and <span class="s3">TYPERECORD</span></p><p style="padding-left: 107pt;text-indent: 0pt;line-height: 107%;text-align: justify;">declarations to <span class="s3">DATATYPE </span>. <span class="s3">DATATYPE </span>is used the same way as the functions <span class="s3">RECORD </span>and <span class="s3">TYPERECORD</span>. In addition, the same <span class="s3">FETCH </span>and <span class="s3">REPLACE </span>commands can be used with the data structure <span class="s3">DATATYPE </span>creates. The difference is that the data structure</p><p class="s3" style="padding-left: 107pt;text-indent: 0pt;text-align: left;">DATATYPE <span class="p">creates cannot be treated as a list the way </span>RECORD <span class="p">s and </span>TYPERECORD<span class="p">s can.</span></p><p class="s6" style="padding-top: 3pt;text-indent: 0pt;text-align: right;">22. RESOURCE MANAGEMENT</p><p style="padding-left: 35pt;text-indent: 0pt;line-height: 1pt;text-align: left;"><span><img width="665" height="1" alt="image" src="Image_156.png"/></span></p><p style="text-indent: 0pt;text-align: left;"><br/></p><h3 style="padding-left: 71pt;text-indent: 0pt;text-align: left;">Global Variables</h3><p style="padding-top: 8pt;padding-left: 107pt;text-indent: 0pt;text-align: left;">Once defined, global variables remain until Lisp is reloaded. Avoid using global</p><p style="padding-left: 107pt;text-indent: 0pt;text-align: left;">variables if at all possible! One specific problem arises when programs use the function</p><p class="s3" style="padding-left: 107pt;text-indent: 0pt;line-height: 107%;text-align: left;">GENSYM<span class="p">. In program development, many atoms are created that may no longer be useful. Hints:</span></p><p style="padding-top: 6pt;padding-left: 108pt;text-indent: 0pt;text-align: left;">• Use</p><p class="s3" style="padding-top: 7pt;padding-left: 143pt;text-indent: 0pt;text-align: left;">(DELDEF <span class="s4">atomname </span>’PROP)</p><p style="padding-top: 7pt;padding-left: 119pt;text-indent: 0pt;text-align: left;">to delete property lists, and</p><p class="s3" style="padding-top: 7pt;padding-left: 143pt;text-indent: 0pt;text-align: left;">(DELDEF <span class="s4">atomname </span>’VARS)</p><p style="padding-top: 7pt;padding-left: 119pt;text-indent: 0pt;text-align: left;">to have the atom act like it is not defined.</p><p style="padding-top: 7pt;padding-left: 119pt;text-indent: 0pt;text-align: left;">These not only remove the definition from memory, but also change the appropriate <span class="s3">fileCOMS </span>that the deleted object was associated with so that the file package will not attempt to save the object (function, variable, record definition, and so forth) the next time the file is made. J ust doing something like</p><p class="s3" style="padding-top: 7pt;padding-left: 143pt;text-indent: 0pt;text-align: left;">(SETQ (<span class="s4">arg atomname</span>) ’NOBIND)</p><p style="padding-top: 7pt;padding-left: 119pt;text-indent: 0pt;line-height: 107%;text-align: left;">looks like it will have the same effect as the second <span class="s3">DELDEF </span>above, but the <span class="s3">SETQ </span>does not update the file package.</p><p style="padding-top: 6pt;padding-left: 119pt;text-indent: -11pt;line-height: 107%;text-align: left;">• If you are generating atom names with <span class="s3">GENSYM </span>, try to keep a list of the atom names that are no longer needed. Reuse these atom names, before generating new ones.</p><p style="padding-left: 119pt;text-indent: 0pt;text-align: left;">There is a (fairly large) maximum to the number of atoms you can have, but things slow down considerably when you create lots of atoms.</p><p style="padding-top: 6pt;padding-left: 108pt;text-indent: 0pt;text-align: left;">• When possible, use a data structure such as a list or an array, instead of many</p><p style="padding-left: 119pt;text-indent: 0pt;text-align: left;">individual atoms. Such a structure has only one pointer to it. Once this pointer is</p><p style="padding-left: 119pt;text-indent: 0pt;text-align: left;">removed, the whole structure will be garbage-collected and space will be reclaimed.</p><p style="text-indent: 0pt;text-align: left;"><br/></p><h3 style="padding-left: 71pt;text-indent: 0pt;text-align: left;">Circular Lists</h3><p style="padding-top: 8pt;padding-left: 107pt;text-indent: 0pt;text-align: justify;">If your program is creating circular lists, a lot of space may be wasted. (Many</p><p style="padding-left: 107pt;text-indent: 0pt;text-align: justify;">crosslinked data structures end up having circularities.) Hints when using circular lists:</p><p style="padding-top: 7pt;padding-left: 119pt;text-indent: -11pt;text-align: left;">• Write a function to remove pointers that make lists circular when you are through with the circular list.</p><p style="padding-top: 7pt;padding-left: 119pt;text-indent: -10pt;text-align: left;">• If you are working with circular lists of windows, bind your main window to a unique global variable. Write window creation conditionally so that if the binding of that</p><p style="padding-left: 119pt;text-indent: 0pt;text-align: left;">variable is already a window, use it, and only create a new window if that variable is unbound or <span class="s3">NIL</span>.</p><p style="padding-top: 7pt;padding-left: 107pt;text-indent: 0pt;text-align: justify;">Here is an example that illustrates the problem. When several auxilIary windows are built, pointers to these windows are usually kept on the main window’s property list.</p><p style="padding-left: 107pt;text-indent: 0pt;text-align: justify;">Each auxilIary window also typically keeps a pointer to the main window on its</p><p style="padding-left: 107pt;text-indent: 0pt;text-align: justify;">property list If the top level function creates windows rather than reusing existing ones, there will be many lists of useless windows cluttering the work space. Or, if such a main window is closed and will not be used again, you will have to break the links by deleting the relevant properties from both the main window and all of the auxiliary windows</p><p style="padding-left: 107pt;text-indent: 0pt;line-height: 107%;text-align: justify;">first. This is usually done by putting a special <span class="s3">CLOSEFN </span>on the main window and all of its auxiliary windows.</p><p style="text-indent: 0pt;text-align: left;"><br/></p><h3 style="padding-top: 4pt;padding-left: 71pt;text-indent: 0pt;text-align: left;">When You Run Out of Space</h3><p style="padding-top: 8pt;padding-left: 107pt;text-indent: 0pt;text-align: justify;">Typically, if you generato a lot of structure! that won’t get garbage collected, you will eventually run out of space. The important part ii being aNe to track down those</p><p style="padding-left: 107pt;text-indent: 0pt;text-align: left;">structures and the code that generates them to become more space efficient.</p><p style="padding-top: 7pt;padding-left: 107pt;text-indent: 0pt;line-height: 107%;text-align: justify;">Use the Lisp Library Package <span class="s3">GCHAX.DCOM </span>to track down pointers to data structures. The basic idea is that <span class="s3">GCHAX </span>will return the number of references to a particular data structure.</p><p style="padding-top: 6pt;padding-left: 107pt;text-indent: 0pt;text-align: left;">A special function exists that allows you to get a little extra space so that you can try to save your work when you get toward the edge (usually noted by a message indicating</p><p style="padding-left: 107pt;text-indent: 0pt;text-align: left;">that you should save your work and load a new Medley environment). The <span class="s3">GAINSPACE</span></p><p style="padding-left: 107pt;text-indent: 0pt;text-align: left;">function allows you to delete non-essential data structures. To use it, type:</p><p class="s3" style="padding-top: 7pt;padding-left: 143pt;text-indent: 0pt;text-align: left;">(GAINSPACE)</p><p style="padding-top: 7pt;padding-left: 107pt;text-indent: 0pt;text-align: left;">into the Executive Window. Answer <span class="s3">N </span>to all questions except the followi ng.</p><p style="padding-top: 7pt;padding-left: 108pt;text-indent: 0pt;text-align: left;">• Delete edit history</p><p style="padding-top: 7pt;padding-left: 108pt;text-indent: 0pt;text-align: left;">• Delete history list.</p><p style="padding-top: 7pt;padding-left: 108pt;text-indent: 0pt;text-align: left;">• Delete values of old variables.</p><p style="padding-top: 7pt;padding-left: 108pt;text-indent: 0pt;text-align: left;">• Delete your <span class="s3">MASTERSCOPE </span>database</p><p style="padding-top: 7pt;padding-left: 108pt;text-indent: 0pt;text-align: left;">• Delete information for undoing your greeting.</p><p style="padding-top: 7pt;padding-left: 107pt;text-indent: 0pt;text-align: left;">Save your work and reload Lisp as soon as possible.</p><p class="nav">&nbsp;&nbsp;</p><p class="nav">&nbsp;</p><p class="nav"><a href="part24.htm">&lt; Previous</a><span> | </span><a href="../Medley-Primer.html">Contents</a><span> | </span><a href="part26.htm">Next &gt;</a></p><p class="nav">&nbsp;&nbsp;</p></body></html>
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-<html xmlns="http://www.w3.org/1999/xhtml"><head><meta http-equiv="Content-Type" content="text/html; charset=utf-8"/><title>23-INTERACTIONS</title><link href="navigation.css" rel="stylesheet" type="text/css"/><link href="document.css" rel="stylesheet" type="text/css"/></head><body><p class="top_nav"><a href="part25.htm">&lt; Previous</a><span> | </span><a href="../Medley-Primer.html">Contents</a><span> | </span><a href="part27.htm">Next &gt;</a></p><h1 style="padding-top: 5pt;padding-left: 71pt;text-indent: -36pt;line-height: 87%;text-align: left;"><a name="bookmark25">23. SIMPLE INTERACTIONS WITH THE CURSOR, A BITMAP, AND A WINDOW</a></h1><p style="padding-left: 35pt;text-indent: 0pt;line-height: 6pt;text-align: left;"><span><img width="640" height="8" alt="image" src="Image_157.png"/></span></p><p style="text-indent: 0pt;text-align: left;"><br/></p><p style="padding-top: 15pt;padding-left: 107pt;text-indent: 0pt;text-align: left;">The purpose of this chapter is to show you how to build a moderately tricky interactive interface with the various Medley display facilities. In particular how to move a large</p><p style="padding-left: 107pt;text-indent: 0pt;line-height: 106%;text-align: left;">bitmap (larger than 16 x 16 pixels) around inside a window. To do this, you will change the <span class="s3">CURSORINFN </span>and <span class="s3">CURSOROUTFN </span>properties of the window. If you would also like to then set the bitmap in place in the window, you must reset the <span class="s3">BUTTONEVENTFN </span>. This chapter explains how to create the mobile bitmap.</p><p style="text-indent: 0pt;text-align: left;"><br/></p><h2 style="padding-left: 35pt;text-indent: 0pt;text-align: left;">GETMOUSESTATE Example Function                                                           </h2><p style="padding-top: 9pt;padding-left: 107pt;text-indent: 0pt;line-height: 106%;text-align: left;">One function that you will use to &quot;trace the cursor&quot; (have a bitmap follow the cursor around in a window) is <span class="s3">GETMOUSESTATE</span>. This function finds the current state of the. mouse, and resets global system variables, such as <span class="s3">LASTMOUSEX </span>and <span class="s3">LASTMOUSEY</span>.</p><p style="padding-top: 7pt;padding-left: 107pt;text-indent: 0pt;text-align: left;">As an example of how this function works, create a window by typing</p><p class="s3" style="padding-top: 7pt;padding-left: 143pt;text-indent: 0pt;text-align: left;">(SETQ EXAMPLE.WINDOW (CREATEW))</p><p style="padding-top: 7pt;padding-left: 107pt;text-indent: 0pt;text-align: left;">into the Executive Window, and sweeping out a window. Now, type in the function</p><p class="s3" style="padding-top: 7pt;padding-left: 143pt;text-indent: 0pt;line-height: 11pt;text-align: left;">(DEFINEQ (PRINTCOORDS (W)</p><p class="s3" style="padding-left: 173pt;text-indent: 0pt;line-height: 88%;text-align: left;">(PROMPTPRINT &quot;(&quot; LASTMOUSEX &quot;, &quot;LASTMOUSEY &quot;)&quot;) (BLOCK)</p><p class="s3" style="padding-left: 173pt;text-indent: 0pt;line-height: 10pt;text-align: left;">(GETMOUSESTATE)))</p><p style="text-indent: 0pt;text-align: left;"><br/></p><p style="padding-left: 107pt;text-indent: 0pt;text-align: left;">This function calls <span class="s3">GETMOUSESTATE </span>and then prints the new values of <span class="s3">LASTMOUSEX </span>and</p><p class="s3" style="padding-left: 107pt;text-indent: 0pt;text-align: left;">LASTMOUSEY <span class="p">in the promptwindow. To use it, type</span></p><p class="s3" style="padding-top: 7pt;padding-left: 143pt;text-indent: 0pt;text-align: left;">(WINDOWPROP EXAMPLE.WINDOW ’CURSORMOVEDFN ’PRINTCOORDS)</p><p style="padding-top: 7pt;padding-left: 107pt;text-indent: 0pt;line-height: 107%;text-align: left;">The window property <span class="s3">CURSORMOVEDFN</span>, used in this example, will evaluate the function <span class="s3">PRINTCOORDS </span>each time the cursor is moved when it is inside the window. The position coordinates of the mouse cursor will appear in the prompt window. (See Figure 23.1.)</p><p style="text-indent: 0pt;text-align: left;"><br/></p><p style="padding-left: 128pt;text-indent: 0pt;text-align: left;">Figure 23.1. Current Position Coordinates of Mouse Cursor in Prompt Window</p><p style="text-indent: 0pt;text-align: left;"><br/></p><h2 style="padding-left: 35pt;text-indent: 0pt;text-align: left;">Advising GETMOUSESTATE                                                                           </h2><p style="padding-top: 9pt;padding-left: 107pt;text-indent: 0pt;line-height: 107%;text-align: left;">For the bitmap to follow the moving mouse cursor, the function <span class="s3">GETMOUSESTATE </span>is advised. When you advise a function, you can add new commands to the function</p><p style="padding-left: 107pt;text-indent: 0pt;line-height: 11pt;text-align: left;">without knowing how it is actually implemented. The syntax for advise is</p><p class="s3" style="padding-top: 7pt;padding-left: 143pt;text-indent: 0pt;text-align: left;">(ADVISE <span class="s4">fn when where what</span>)</p><p class="s4" style="padding-top: 7pt;padding-left: 107pt;text-indent: 0pt;text-align: left;">fn <span class="p">is the name of the function to be augmented. </span>when <span class="p">and </span>where <span class="p">are optional</span></p><p style="padding-left: 107pt;text-indent: 0pt;text-align: left;">arguments. <i>when </i>specifies whether the change should be made before, after, or around the body of the function. The values expected are <span class="s3">BEFORE </span>, <span class="s3">AFTER</span>, or <span class="s3">AROUND</span>.</p><p class="s4" style="padding-top: 7pt;padding-left: 107pt;text-indent: 0pt;text-align: left;">what <span class="p">specifies the additional code.</span></p><p style="text-indent: 0pt;text-align: left;"><br/></p><p style="padding-top: 4pt;padding-left: 107pt;text-indent: 0pt;text-align: left;">In the example, the additional code, <i>what</i>, moves the bitmap to the position of the</p><p style="padding-left: 107pt;text-indent: 0pt;text-align: left;">mouse cursor. The function <span class="s3">GETNOUSESTATE </span>will be <span class="s3">ADVISE</span>d when the mouse moves</p><p style="padding-left: 106pt;text-indent: 0pt;line-height: 106%;text-align: left;">into the window. This will cause the bitmap to follow the mouse cursor. <span class="s3">ADVISE </span>will be undone when the mouse leaves the window or when a mouse button is pushed. The <span class="s3">ADVISE</span>ing will be done and undone by changing the <span class="s3">CURSORINFN </span>, <span class="s3">CURSOROUTFN</span>, and <span class="s3">BUTTONEVENTFN </span>for the window.</p><p style="text-indent: 0pt;text-align: left;"><br/></p><h2 style="padding-left: 35pt;text-indent: 0pt;text-align: left;">Changing the Cursor                                                                                        </h2><p style="text-indent: 0pt;text-align: left;"><br/></p><p style="padding-top: 4pt;padding-left: 107pt;text-indent: 0pt;text-align: left;">One last part of the example, to give the impression that a bitmap is dragged around a window, the original cursor should disappear. Try typing:</p><p class="s3" style="padding-top: 6pt;padding-left: 143pt;text-indent: 0pt;text-align: left;">(CURSOR (CURSORCREATE (BITMAPCREATE 1 l) 1 1]</p><p style="padding-top: 7pt;padding-left: 107pt;text-indent: 0pt;text-align: left;">into the Executive Window. This causes the original cursor to disappear. It reappears when you type</p><p class="s3" style="padding-top: 6pt;padding-left: 143pt;text-indent: 0pt;text-align: left;">(CURSOR T)</p><p style="padding-top: 7pt;padding-left: 107pt;text-indent: 0pt;text-align: left;">When the cursor is invisible, and the bitmap moves as the cursor moves, the illusion is given that the bitmap is dragged around the window.</p><p style="text-indent: 0pt;text-align: left;"><br/></p><h2 style="padding-left: 35pt;text-indent: 0pt;text-align: left;">Functions for Tracing the Cursor                                                                   </h2><p style="text-indent: 0pt;text-align: left;"><br/></p><p style="padding-top: 4pt;padding-left: 107pt;text-indent: 0pt;text-align: left;">To actually have a bitmap trace (follow) the cursor, the environment must be set up so that when the cursor enters the tracing region the trace is turned on, and when the</p><p style="padding-left: 107pt;text-indent: 0pt;line-height: 106%;text-align: left;">cursor leaves the tracing region the trace is turned off. The function <span class="s3">Establish/Trace/Data </span>will do this. Type it in as it appears (include comments that will help you remember what the function does).</p><p style="text-indent: 0pt;text-align: left;"><br/></p><p class="s3" style="padding-left: 107pt;text-indent: 0pt;line-height: 11pt;text-align: left;">(DEFINEQ (Establish/Trace/Data</p><p class="s3" style="padding-left: 143pt;text-indent: -12pt;line-height: 88%;text-align: left;">[LAMBDA (wnd tracebitmap cursor/rightoffset cursor/heightoffset GCGAGP)</p><p style="text-indent: 0pt;text-align: left;"><br/></p><p class="s3" style="padding-left: 143pt;text-indent: 0pt;line-height: 88%;text-align: left;">(* * This function is called to establish the data to trace the desired bitmap. &quot;wnd&quot; is the window in which the tracing is to take place, &quot;tracebitmap&quot; is the tracing bitmap, &quot;cursor/rightoffset&quot; and &quot;cursor/heightoffset&quot; are integers which detemine the hotspot of the tracing bitmap.</p><p class="s3" style="padding-left: 143pt;text-indent: 0pt;line-height: 88%;text-align: left;">As &quot;cursor/heightoffset and &quot;cursor/rightoffset&quot; increase the cursor hotspot moves up and to the right.</p><p class="s3" style="padding-left: 143pt;text-indent: 0pt;line-height: 10pt;text-align: left;">If GCGAGP is non-NIL, GCGAG will be disabled.)</p><p style="text-indent: 0pt;text-align: left;"><br/></p><p class="s3" style="padding-left: 107pt;text-indent: 0pt;text-align: left;">(PROG NIL</p><p class="s3" style="padding-top: 8pt;padding-left: 143pt;text-indent: 0pt;line-height: 11pt;text-align: left;">(if (OR (NULL wnd)</p><p class="s3" style="padding-left: 111pt;text-indent: 0pt;line-height: 10pt;text-align: center;">(NULL tracebitmap))</p><p class="s3" style="padding-left: 197pt;text-indent: -30pt;line-height: 88%;text-align: left;">then (PLAYTUNE (LIST (CONS 1000 4000))) (RETURN))</p><p class="s3" style="padding-left: 143pt;text-indent: 0pt;line-height: 10pt;text-align: left;">(if GCGAGP</p><p class="s3" style="padding-left: 167pt;text-indent: 0pt;line-height: 11pt;text-align: left;">then (GCGAG))</p><p class="s3" style="padding-top: 8pt;padding-left: 155pt;text-indent: 0pt;text-align: left;">(* * Create a blank cursor.)</p><p class="s3" style="padding-top: 8pt;padding-left: 143pt;text-indent: 0pt;line-height: 11pt;text-align: left;">(SETQ *BLANKCURSOR*(BITMAPCREATE 16 16))</p><p class="s3" style="padding-left: 143pt;text-indent: 0pt;line-height: 11pt;text-align: left;">(SETQ *BLANKTRACECURSOR*(CURSORCREATE *BLANKCURSOR*))</p><p style="text-indent: 0pt;text-align: left;"><br/></p><p class="s3" style="padding-top: 6pt;padding-left: 155pt;text-indent: 0pt;line-height: 88%;text-align: left;">(* * Set the CURSOR IN and OUT FNS for wnd to the following:)</p><p class="s3" style="padding-top: 9pt;padding-left: 143pt;text-indent: 0pt;line-height: 11pt;text-align: left;">(WINDOWPROP wnd (QUOTE CURSORINFN)</p><p class="s3" style="padding-left: 143pt;text-indent: 72pt;line-height: 88%;text-align: left;">(FUNCTION SETUP/TRACE)) (WINDOWPROP wnd (QUOTE CURSOROUTFN)</p><p class="s3" style="padding-left: 215pt;text-indent: 0pt;line-height: 10pt;text-align: left;">(FUNCTION UNTRACE/CURSOR))</p><p class="s3" style="padding-top: 9pt;padding-left: 161pt;text-indent: -6pt;line-height: 88%;text-align: left;">(* * To allow the bitmap to be set down in the window by pressing a mouse button, include this line.</p><p class="s3" style="padding-left: 161pt;text-indent: 0pt;line-height: 10pt;text-align: left;">Otherwise, it is not needed)</p><p class="s3" style="padding-top: 8pt;padding-left: 143pt;text-indent: 0pt;line-height: 11pt;text-align: left;">(WINDOWPROP wnd (QUOTE BUTTONEVENTFN)</p><p class="s3" style="padding-left: 143pt;text-indent: 72pt;line-height: 88%;text-align: left;">(FUNCTION PLACE/BITMAP/IN/WINDOW)) (WINDOWPROP wnd (QUOTE CURSOROUTFN)</p><p class="s3" style="padding-left: 143pt;text-indent: 12pt;line-height: 20pt;text-align: left;">(* * Set up Global Variables for the tracing operation) (SETQ *TRACEBITMAP* tracebitmap</p><p class="s3" style="padding-left: 143pt;text-indent: 0pt;line-height: 88%;text-align: left;">(SETQ *RIGHTTRACE/OFFSET*(OR cursor/rightoffset 0)) (SETQ *HEIGHTTRACE/OFFSET*(OR cxursor heightoffset 0)) (SETQ *OLDBITMAPPOSITION*(BITMAPCREATE (BITMAPWIDTH</p><p class="s3" style="padding-left: 161pt;text-indent: 0pt;line-height: 9pt;text-align: left;">tracebitmap)</p><p class="s3" style="padding-top: 9pt;padding-left: 161pt;text-indent: 0pt;line-height: 11pt;text-align: left;">tracebitmap)))</p><p class="s3" style="padding-left: 143pt;text-indent: 0pt;line-height: 11pt;text-align: left;">(SETQ *TRACEWINDOW* wnd]))</p><p class="s3" style="padding-left: 75pt;text-indent: 0pt;line-height: 11pt;text-align: left;">(BITMAPHEIGHT</p><p style="text-indent: 0pt;text-align: left;"><br/></p><p style="padding-top: 4pt;padding-left: 107pt;text-indent: 0pt;text-align: left;">When the function <span class="s3">Establish/Trace/Data </span>is called, the functions <span class="s3">SETUP/TRACE </span>and</p><p class="s3" style="padding-left: 107pt;text-indent: 0pt;line-height: 107%;text-align: left;">UNTRACE/CURSOR <span class="p">will be installed as the values of the window’s </span>WlNDOWPROPS <span class="p">, and will be used to turn the trace on and off. Those functions should be typed in, then:</span></p><p style="text-indent: 0pt;text-align: left;"><br/></p><p class="s3" style="padding-left: 131pt;text-indent: -24pt;line-height: 88%;text-align: left;">(DEFINEQ (SETUP/TRACE [LAMBDA (wnd)</p><p class="s3" style="padding-top: 9pt;padding-left: 143pt;text-indent: 0pt;line-height: 11pt;text-align: left;">(* * This function is wnd’s CURSORINFN.</p><p class="s3" style="padding-left: 143pt;text-indent: 0pt;line-height: 88%;text-align: left;">It simply resets the last trace position and the current tracing region. It also readvises GETMOUSESTATE to perform the trace function after each call.)</p><p class="s3" style="padding-top: 9pt;padding-left: 131pt;text-indent: 0pt;line-height: 11pt;text-align: left;">(if *TRACEBITMAP*</p><p class="s3" style="padding-left: 167pt;text-indent: -24pt;line-height: 88%;text-align: left;">then (SETQ *LAST-TRACE-XPOS* -2000) (SETQ *LAST-TRACE-YPOS* -2000)</p><p class="s3" style="padding-left: 167pt;text-indent: 0pt;line-height: 88%;text-align: left;">(SETQ *WNDREGION* (WINDOWPROP wnd (QUOTE REGION))) (WINDOWPROP wnd (QUOTE TRACING)</p><p class="s3" style="padding-left: 191pt;text-indent: 0pt;line-height: 10pt;text-align: left;">T)</p><p class="s3" style="padding-top: 8pt;padding-left: 143pt;text-indent: 0pt;text-align: left;">(* * make the cursor disappear)</p><p class="s3" style="padding-top: 9pt;padding-left: 143pt;text-indent: 0pt;line-height: 88%;text-align: left;">(CURSOR *BLANKTRACECURSOR*) (ADVISE (QUOTE GETMOUSESTATE)</p><p class="s3" style="padding-left: 179pt;text-indent: 0pt;line-height: 88%;text-align: left;">(QUOTE AFTER) NIL</p><p class="s3" style="padding-left: 179pt;text-indent: 0pt;line-height: 10pt;text-align: left;">(QUOTE (TRACE/CURSOR]))</p><p class="s3" style="padding-top: 9pt;padding-left: 113pt;text-indent: -6pt;line-height: 88%;text-align: left;">(DEFINEQ (UNTRACE/CURSOR [LAMBDA (wnd)</p><p style="text-indent: 0pt;text-align: left;"><br/></p><p class="s3" style="padding-left: 143pt;text-indent: 0pt;line-height: 88%;text-align: left;">(* * This function is wnd’s CURSOROUTFN. The function first checks if the cursor is currently being traced; if so, it replaces the tracing bitmap with what is under it and then turns tracing off by unadvising GETMOUSESTATE and setting the TRACING window property of *TRACEWINDOW* to NIL.)</p><p class="s3" style="padding-top: 9pt;padding-left: 113pt;text-indent: 0pt;text-align: left;">(if (WINDOWPROP *TRACEWINDOW*(QUOTE TRACING))</p><p style="text-indent: 0pt;text-align: left;"><br/></p><p class="s3" style="padding-top: 6pt;padding-left: 191pt;text-indent: -48pt;line-height: 88%;text-align: left;">then (BITBLT *OLDBITMAPPOSITION* 0 0 (SCREENBITMAP) (IPLUS (CAR *WNDREGION*)*LAST-TRACE-XPOS*) (IPLUS (CADR *WNDREGION*)*LAST-TRACE-YPOS*))</p><p class="s3" style="padding-left: 167pt;text-indent: 0pt;line-height: 10pt;text-align: left;">(WINDOWPROP *TRACEWINDOW*(QUOTE TRACING)</p><p class="s3" style="padding-left: 287pt;text-indent: 0pt;line-height: 11pt;text-align: left;">NIL))</p><p class="s3" style="padding-top: 8pt;padding-left: 113pt;text-indent: 29pt;line-height: 177%;text-align: left;">(* * replace the original cursor shape) (CURSOR T)</p><p class="s3" style="padding-left: 113pt;text-indent: 29pt;line-height: 177%;text-align: left;">(* * unadvise GETMOUSESTATE) (UNADVISE (QUOTE GETMOUSESTATE]))</p><p style="padding-top: 7pt;padding-left: 107pt;text-indent: 0pt;text-align: left;">The function <span class="s3">SETUP/TRACE </span>has a helper function that you must also type in. It is</p><p class="s3" style="padding-left: 107pt;text-indent: 0pt;text-align: left;">TRACE/CURSOR<span class="p">:</span></p><p class="s3" style="padding-top: 8pt;padding-left: 113pt;text-indent: -6pt;line-height: 88%;text-align: left;">(DEFINEQ (TRACE/CURSOR [LAMBDA NIL</p><p style="text-indent: 0pt;text-align: left;"><br/></p><p class="s3" style="padding-left: 143pt;text-indent: 0pt;line-height: 88%;text-align: left;">(* * This function does the actual BITBLTing of the tracing bitmap. This function is called after a GETMOUSESTATE, while tracing.)</p><p class="s3" style="padding-top: 6pt;padding-left: 34pt;text-indent: 0pt;line-height: 11pt;text-align: center;">(PROG ((xpos (IDIFFERENCE (LASTMOUSEX *TRACEWINDOW*)</p><p class="s3" style="padding-left: 191pt;text-indent: 0pt;line-height: 11pt;text-align: left;">*RIGHTTRACE/OFFSET*))</p><p class="s3" style="padding-top: 5pt;padding-left: 75pt;text-indent: 0pt;line-height: 11pt;text-align: center;">(ypos (IDIFFERENCE (LASTMOUSEY *TRACEWINDOW*)</p><p class="s3" style="padding-left: 191pt;text-indent: 0pt;line-height: 11pt;text-align: left;">*HEIGHTTRACE/OFFSET*))</p><p class="s3" style="padding-top: 6pt;padding-left: 143pt;text-indent: 0pt;line-height: 88%;text-align: left;">(* * If there is an error in the function, press the right button to unadvise the function. This will keep the machine from locking up.)</p><p class="s3" style="padding-top: 6pt;padding-left: 143pt;text-indent: 0pt;line-height: 11pt;text-align: left;">(if (LASTMOUSESTATE RIGHT)</p><p class="s3" style="padding-left: 143pt;text-indent: 24pt;line-height: 88%;text-align: left;">then (UNADVISE (QUOTE GETMOUSESTATE))) (if (AND (NEQ xpos *LAST-TRACE-XPOS*)</p><p class="s3" style="padding-left: 197pt;text-indent: 0pt;line-height: 9pt;text-align: left;">(NEQ ypos *LAST-TRACE-YPOS*))</p><p class="s3" style="padding-left: 167pt;text-indent: 0pt;text-align: left;">then</p><p class="s3" style="padding-top: 6pt;padding-left: 143pt;text-indent: 0pt;line-height: 90%;text-align: left;">(* * Restore what was under the old position of the trace bitmap<span class="s13">)</span></p><p class="s3" style="padding-top: 6pt;padding-left: 191pt;text-indent: -24pt;line-height: 88%;text-align: left;">(BITBLT *OLDBITMAPPOSITION* 0 0 (SCREENBITMAP) (IPLUS (CAR *WNDREGION*)*LAST-TRACE-XPOS*) (IPLUS (CADR *WNDREGION*)*LAST-TRACE-YPOS*))</p><p class="s3" style="padding-top: 7pt;padding-left: 143pt;text-indent: 0pt;line-height: 88%;text-align: left;">(* * Save what will be under the position of the new trace bitmap)</p><p class="s3" style="padding-top: 7pt;padding-left: 191pt;text-indent: -24pt;line-height: 88%;text-align: left;">(BITBLT (SCREENBITMAP) (IPLUS (CAR *WNDREGION*)</p><p class="s3" style="padding-left: 111pt;text-indent: 0pt;line-height: 10pt;text-align: center;">xpos)</p><p class="s3" style="padding-left: 215pt;text-indent: -24pt;line-height: 88%;text-align: left;">(IPLUS (CADR *WNDREGION*) ypos)*OLDBITMAPPOSITION* 0 0)</p><p class="s3" style="padding-top: 7pt;padding-left: 143pt;text-indent: 0pt;line-height: 88%;text-align: left;">(* * BITBLT the trace bitmap onto the new position of the mouse)</p><p class="s3" style="padding-top: 7pt;padding-left: 191pt;text-indent: -24pt;line-height: 88%;text-align: left;">(BITBLT *TRACEBITMAP* 0 0 (SCREENBITMAP) (IPLUS (CAR *WNDREGION*)</p><p class="s3" style="padding-left: 111pt;text-indent: 0pt;line-height: 10pt;text-align: center;">xpos)</p><p class="s3" style="padding-left: 191pt;text-indent: 0pt;line-height: 10pt;text-align: left;">(IPLUS (CADR *WNDREGION*)</p><p class="s3" style="padding-left: 111pt;text-indent: 0pt;line-height: 10pt;text-align: center;">ypos)</p><p class="s3" style="padding-left: 191pt;text-indent: 0pt;line-height: 88%;text-align: left;">NIL NIL (QUOTE INPUT) (QUOTE PAINT))</p><p class="s3" style="padding-top: 6pt;padding-left: 167pt;text-indent: -24pt;line-height: 150%;text-align: left;">(* * Save the current position as the last trace position.) (SETQ *LAST-TRACE-XPOS* xpos)</p><p style="text-indent: 0pt;text-align: left;"><br/></p><p class="s3" style="padding-top: 5pt;padding-left: 167pt;text-indent: 0pt;text-align: left;">(SETQ *LAST-TRACE-YPOS* ypos]))</p><p style="text-indent: 0pt;text-align: left;"><br/></p><p style="padding-left: 107pt;text-indent: 0pt;line-height: 107%;text-align: left;">The helper function for <span class="s3">UNTRACE/CURSOR </span>, called <span class="s3">UNDO/TRACE/DATA</span>, must also be added to the environment:</p><p style="text-indent: 0pt;text-align: left;"><br/></p><p class="s3" style="padding-left: 131pt;text-indent: -24pt;line-height: 88%;text-align: left;">(DEFINEQ (UNDO/TRACE/DATA [LAMBDA NIL</p><p style="text-indent: 0pt;text-align: left;"><br/></p><p class="s3" style="padding-left: 179pt;text-indent: -6pt;line-height: 88%;text-align: left;">(* * The purpose of this function is to turn tracing off and to free up the global variables used to trace the bitmap so that they can be garbage collected.)</p><p style="text-indent: 0pt;text-align: left;"><br/></p><p class="s3" style="padding-left: 179pt;text-indent: 0pt;line-height: 88%;text-align: left;">(* * Check if the cursor is currently being traced. It so, turn it off.)</p><p class="s3" style="padding-top: 9pt;padding-left: 143pt;text-indent: 0pt;line-height: 11pt;text-align: left;">(UNTRACE/CURSOR)</p><p class="s3" style="padding-left: 215pt;text-indent: -72pt;line-height: 88%;text-align: left;">(WINDOWPROP *TRACEWINDOW*(QUOTE CURSORINFN) NIL)</p><p class="s3" style="padding-left: 215pt;text-indent: -72pt;line-height: 88%;text-align: left;">(WINDOWPROP *TRACEWINDOW*(QUOTE CURSOROUTFN) NIL)</p><p class="s3" style="padding-left: 143pt;text-indent: 0pt;line-height: 10pt;text-align: left;">(SETQ *TRACEBITMAP* NIL)</p><p class="s3" style="padding-left: 143pt;text-indent: 0pt;line-height: 88%;text-align: left;">(SETQ *RIGHTTRACE/OFFSET* NIL) (SETQ *HEIGHTTRACE/OFFSET* NIL) (SETQ *OLDBITMAPPOSITION* NIL) (SETQ *TRACEWINDOW* NIL)</p><p class="s3" style="padding-top: 9pt;padding-left: 143pt;text-indent: 30pt;line-height: 177%;text-align: left;">(* * Turn GCGAG on) (GCGAG T]))</p><p style="padding-top: 7pt;padding-left: 107pt;text-indent: 0pt;line-height: 107%;text-align: left;">Finally, if you included the <span class="s3">WlNDOWPROP </span>to allow the user to place the bitmap in the window by pressing a mouse button, you must also type this function:</p><p style="text-indent: 0pt;text-align: left;"><br/></p><p class="s3" style="padding-left: 131pt;text-indent: -24pt;line-height: 88%;text-align: left;">(DEFINEQ (PLACE/BITMAP/IN/WINDOW [LAMBDA (wnd)</p><p class="s3" style="padding-top: 9pt;padding-left: 143pt;text-indent: 0pt;line-height: 11pt;text-align: left;">(UNADVISE (GETMOUSESTATE))</p><p class="s3" style="padding-left: 173pt;text-indent: -30pt;line-height: 88%;text-align: left;">(BITBLT *TRACEBITMAP* 0 0 (SCREENBITMAP) (IPLUS (CAR *WNDREGION*)</p><p class="s3" style="padding-left: 111pt;text-indent: 0pt;line-height: 10pt;text-align: center;">xpos)</p><p class="s3" style="padding-left: 173pt;text-indent: 0pt;line-height: 10pt;text-align: left;">(IPLUS (CADR *WNDREGION*)</p><p class="s3" style="padding-left: 111pt;text-indent: 0pt;line-height: 10pt;text-align: center;">ypos)</p><p class="s3" style="padding-left: 173pt;text-indent: 0pt;line-height: 88%;text-align: left;">NIL NIL (QUOTE INPUT) (QUOTE PAINT]</p><p style="padding-top: 6pt;padding-left: 107pt;text-indent: 0pt;text-align: left;">That’s all the functions!</p><p style="text-indent: 0pt;text-align: left;"><br/></p><h2 style="padding-left: 35pt;text-indent: 0pt;text-align: left;">Running the Functions                                                                                    </h2><p style="text-indent: 0pt;text-align: left;"><br/></p><p style="padding-top: 4pt;padding-left: 107pt;text-indent: 0pt;text-align: left;">To run the functions you just typed in, first set a variable to a window by typing something like</p><p class="s3" style="padding-top: 6pt;padding-left: 143pt;text-indent: 0pt;text-align: left;">(SETQ EXAMPLE.WINDOW (CREATEW))</p><p style="padding-top: 7pt;padding-left: 107pt;text-indent: 0pt;text-align: left;">into the Executive Window, and sweeping out a new window. Now, set a variable to a bitmap, by typing, perhaps,</p><p class="s3" style="padding-top: 6pt;padding-left: 143pt;text-indent: 0pt;text-align: left;">(SETQ EXAMPLE.BTM (EDITBM))</p><p style="text-indent: 0pt;text-align: left;"><br/></p><p style="padding-top: 4pt;padding-left: 107pt;text-indent: 0pt;text-align: left;">Type</p><p class="s3" style="padding-top: 7pt;padding-left: 143pt;text-indent: 0pt;text-align: left;">(Estab1ish/Trace/Data EXAMPLE.WINDOW EXAMPLE.BTM))</p><p style="padding-top: 7pt;padding-left: 107pt;text-indent: 0pt;text-align: left;">When you move the cursor into the window, the cursor will drag the bitmap.</p><p style="padding-top: 7pt;padding-left: 107pt;text-indent: 0pt;text-align: left;">(If you want to be able to make menu selections while tracing the cursor, make sure</p><p style="padding-left: 107pt;text-indent: 0pt;text-align: left;">that the hotspot of the cursor is set to the extreme right of the bitmap. Otherwise, the menu will be destroyed by the <span class="s3">BITBLT </span>s of the trace functions.)</p><p style="padding-top: 7pt;padding-left: 107pt;text-indent: 0pt;text-align: left;">To stop tracing, do one of the following:</p><p style="padding-top: 7pt;padding-left: 108pt;text-indent: 0pt;text-align: left;">• Move the mouse cursor out of the window</p><p style="padding-top: 7pt;padding-left: 108pt;text-indent: 0pt;text-align: left;">• Press the right mouse button</p><p style="padding-top: 7pt;padding-left: 108pt;text-indent: 0pt;text-align: left;">• Call the function <span class="s3">UNTRACE/CURSOR</span></p><p class="nav">&nbsp;&nbsp;</p><p class="nav">&nbsp;</p><p class="nav"><a href="part25.htm">&lt; Previous</a><span> | </span><a href="../Medley-Primer.html">Contents</a><span> | </span><a href="part27.htm">Next &gt;</a></p><p class="nav">&nbsp;&nbsp;</p></body></html>
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-<html xmlns="http://www.w3.org/1999/xhtml"><head><meta http-equiv="Content-Type" content="text/html; charset=utf-8"/><title>24-GLOBAL-VARIABLES</title><link href="navigation.css" rel="stylesheet" type="text/css"/><link href="document.css" rel="stylesheet" type="text/css"/></head><body><p class="top_nav"><a href="part26.htm">&lt; Previous</a><span> | </span><a href="../Medley-Primer.html">Contents</a><span> | </span><a href="part28.htm">Next &gt;</a></p><h1 style="padding-top: 3pt;padding-left: 35pt;text-indent: 0pt;text-align: left;"><a name="bookmark26">24. GLOSSARY OF GLOBAL SYSTEM VARIABLES</a></h1><p style="padding-left: 35pt;text-indent: 0pt;line-height: 6pt;text-align: left;"><span><img width="640" height="8" alt="image" src="Image_158.png"/></span></p><p style="text-indent: 0pt;text-align: left;"><br/></p><p style="padding-top: 15pt;padding-left: 107pt;text-indent: 0pt;text-align: left;">As you can tell by now, there are many system variables in Medley that are useful to know. The following sections gather many of the important variables together into</p><p style="padding-left: 107pt;text-indent: 0pt;text-align: left;">groups relating to directory searching, system flags, history lists, system menus, windows, and, of course, the catchall miscellaneous category.</p><p style="text-indent: 0pt;text-align: left;"><br/></p><h2 style="padding-left: 35pt;text-indent: 0pt;text-align: left;">Directories                                                                                                         </h2><p style="text-indent: 0pt;text-align: left;"><br/></p><p class="s3" style="padding-top: 5pt;padding-left: 107pt;text-indent: 0pt;text-align: left;">DISPLAYFONTDIRECTORIES</p><p style="padding-top: 7pt;padding-left: 143pt;text-indent: 0pt;line-height: 106%;text-align: justify;">Its value is a list of directories to search for the bitmap files for display font s. Usually, it contains the <span class="s3">FONT </span>directory where you copies the bitmap files (see Chapter 16), and the current connected directory. The current connected</p><p style="padding-left: 143pt;text-indent: 0pt;line-height: 12pt;text-align: justify;">directory is specified by the atom <span class="s3">NIL</span>. Here is an example value of</p><p class="s3" style="padding-left: 143pt;text-indent: 0pt;text-align: left;">DISPLAYFONTDIRECTORIES<span class="p">.</span></p><p style="text-indent: 0pt;text-align: left;"><br/></p><p style="padding-left: 142pt;text-indent: 0pt;text-align: left;"><span><img width="450" height="256" alt="image" src="Image_159.gif"/></span></p><p style="padding-left: 107pt;text-indent: 62pt;line-height: 186%;text-align: left;">Figure 24.1. Value for the Atom <span class="s3">DISPLAYFONTDIRECTORIES INTERPRESSFONTDIRECTORIES</span></p><p style="padding-left: 143pt;text-indent: 0pt;line-height: 10pt;text-align: justify;">Is set to a list of directories to search for the font width files for InterPress font s.</p><p style="text-indent: 0pt;text-align: left;"><br/></p><p class="s3" style="padding-left: 107pt;text-indent: 0pt;text-align: left;">DIRECTORIES</p><p style="padding-top: 7pt;padding-left: 143pt;text-indent: 0pt;text-align: left;">This variable is bound to a list of the directories you will be using (see Figure 24-2). The system uses this variable when it is trying to find a file to load. It checks each directory in the list, until the file is foun d. <span class="s3">NIL </span>in list means to check the current connected directory.</p><p class="s3" style="padding-top: 9pt;padding-left: 107pt;text-indent: 0pt;text-align: left;">LISPUSERSDIRECTORIES</p><p style="padding-top: 7pt;padding-left: 143pt;text-indent: 0pt;text-align: left;">Its value is a list of directories to search for library package files.</p><p style="text-indent: 0pt;text-align: left;"><br/></p><h2 style="padding-top: 4pt;padding-left: 35pt;text-indent: 0pt;text-align: left;">Flags                                                                                                                  </h2><p style="text-indent: 0pt;text-align: left;"><br/></p><p class="s3" style="padding-top: 5pt;padding-left: 107pt;text-indent: 0pt;text-align: left;">DWIMIFYCOMPFLG</p><p style="padding-top: 7pt;padding-left: 143pt;text-indent: 0pt;line-height: 106%;text-align: justify;">This flag, if set to <span class="s3">T</span>, will cause all expressions to be completely dwinified before the expression is compiled (see Chapter 9). In this state, when the system does not recognize a function of keyword, it will compare the word to a system</p><p style="padding-left: 143pt;text-indent: 0pt;line-height: 107%;text-align: justify;">maintained list to determine whether the word is a macro, <span class="s3">CLISP </span>word, or misspelled user-defined variable.</p><p style="padding-top: 6pt;padding-left: 143pt;text-indent: 0pt;line-height: 107%;text-align: justify;">An example of swinifying before compilation is to convert an <span class="s3">IF </span>call to a <span class="s3">COND</span>. before they are compiled. Undwimified expressions can cause inaccurate</p><p style="padding-left: 143pt;text-indent: 0pt;line-height: 107%;text-align: justify;">compilation. This flag is set by the system to <span class="s3">NIL</span>. Normally, you want this set to <span class="s3">T</span>. For more information on DWIM, refer to the <i>IRM</i>.</p><p class="s3" style="padding-top: 9pt;padding-left: 107pt;text-indent: 0pt;text-align: left;">SYSPRETTYFLAG</p><p style="padding-top: 7pt;padding-left: 143pt;text-indent: 0pt;line-height: 107%;text-align: justify;">When set to <span class="s3">T</span>, all lists returned to the executive window are pretty printed. This flag is originally set by the system to <span class="s3">NIL</span>.</p><p class="s3" style="padding-top: 9pt;padding-left: 107pt;text-indent: 0pt;text-align: left;">CLISPIFTRANFLG</p><p style="padding-top: 7pt;padding-left: 143pt;text-indent: 0pt;line-height: 107%;text-align: justify;">When set to <span class="s3">T</span>, keeps the <span class="s3">IF </span>expression, rather than the <span class="s3">COND </span>translation in your code.</p><p class="s3" style="padding-top: 9pt;padding-left: 107pt;text-indent: 0pt;text-align: left;">PRETTYTABFLG</p><p style="padding-top: 7pt;padding-left: 143pt;text-indent: 0pt;line-height: 107%;text-align: justify;">When set to <span class="s3">T</span>, the pretty printer puts out a tab character rather than several spaces to try to make code align. If <span class="s3">NIL</span>, it uses space characters instead.</p><p class="s3" style="padding-top: 9pt;padding-left: 107pt;text-indent: 0pt;text-align: left;">FONTCHANGEFLG</p><p style="padding-top: 7pt;padding-left: 143pt;text-indent: 0pt;text-align: left;">If NIL, then when pretty printing no font changes will happen (e.g., a smaller font for comments, bold for clip words, and so forth). The default is the atom ALL, so different font s are used where appropriate.</p><p style="text-indent: 0pt;text-align: left;"><br/></p><p class="s3" style="padding-left: 107pt;text-indent: 0pt;text-align: left;">AUTOBACKTRACEFLG</p><p style="padding-top: 7pt;padding-left: 143pt;text-indent: 0pt;text-align: left;">There are many possible values for this variable. They affect when the back</p><p style="padding-left: 143pt;text-indent: 0pt;text-align: left;">trace window appears with the break window, and how much detail is included in it. The values of this variable include:</p><p style="padding-top: 7pt;padding-left: 155pt;text-indent: -12pt;line-height: 107%;text-align: left;">• <span class="s3">NIL</span>, its initial value. The back trace window is not brought up when an error is generated, until you open it yourself.</p><p style="padding-top: 6pt;padding-left: 143pt;text-indent: 0pt;text-align: left;">• <span class="s3">T</span>, which means that the back trace <span class="s3">BT </span>window is opened for error breaks</p><p style="padding-top: 7pt;padding-left: 155pt;text-indent: -12pt;line-height: 107%;text-align: left;">• <span class="s3">BT! </span>brings up a back trace window with more detail, <span class="s3">BT!</span>, window for error breaks</p><p style="padding-top: 6pt;padding-left: 155pt;text-indent: -12pt;line-height: 107%;text-align: left;">• <span class="s3">ALWAYS </span>brings up a backtrace <span class="s3">BT </span>window for both error breaks, and breaks caused by calling the function <span class="s3">BREAK</span></p><p style="padding-top: 7pt;padding-left: 155pt;text-indent: -12pt;line-height: 107%;text-align: left;">• <span class="s3">ALWAYS! </span>brings up a backtrace window with more detail, <span class="s3">BT!</span>, for both error breaks and breaks caused by calling the function</p><p style="text-indent: 0pt;text-align: left;"><br/></p><p class="s3" style="padding-top: 5pt;padding-left: 107pt;text-indent: 0pt;text-align: left;">NOSPELLFLG</p><p style="padding-top: 7pt;padding-left: 143pt;text-indent: 0pt;text-align: left;">Is initially bound to <span class="s3">NIL</span>, so that <span class="s3">DWIM </span>tries to correct all spelling errors,</p><p style="padding-left: 143pt;text-indent: 0pt;text-align: left;">whether they are in a form you just typed in or within a function being run. If the variable is <span class="s3">T</span>, then no spelling correction is performed. This variable is</p><p style="padding-left: 143pt;text-indent: 0pt;text-align: left;">automatically reset to <span class="s3">T </span>when you are compiling a file. If it has some other non-</p><p class="s3" style="padding-left: 143pt;text-indent: 0pt;text-align: left;">NIL <span class="p">value, then spelling correction is only performed on type-in.</span></p><p style="text-indent: 0pt;text-align: left;"><br/></p><h2 style="padding-left: 35pt;text-indent: 0pt;text-align: left;">History Lists                                                                                                      </h2><p class="s3" style="padding-top: 10pt;padding-left: 107pt;text-indent: 0pt;text-align: left;">LISPXHISTORY</p><p style="padding-top: 7pt;padding-left: 143pt;text-indent: 0pt;text-align: left;">Originally set to the list <span class="s3">(NIL 0 30 100) </span>, with the following argument</p><p style="padding-left: 143pt;text-indent: 0pt;line-height: 107%;text-align: left;">interpretation. The <span class="s3">NIL </span>is the list (implemented as a circular queue) to which the top level commands append. 0 is the current prompt number. 30 is the</p><p style="padding-left: 143pt;text-indent: 0pt;line-height: 11pt;text-align: left;">maximum length of the history list. 100 is the highest number used as a</p><p style="padding-left: 143pt;text-indent: 0pt;text-align: left;">prompt. This is a system maintained list used by the programmers assistant commands <span class="s3">REDO</span>, <span class="s3">UNDO</span>, <span class="s3">FIX</span>, and ?? use to retrieve past function calls.</p><p style="padding-top: 7pt;padding-left: 143pt;text-indent: 0pt;line-height: 107%;text-align: left;">To delete the history list, reset the variable <span class="s3">LISPXHISTORY </span>to its original value of <span class="s3">(NIL 0 30 100)</span>.</p><p style="padding-top: 7pt;padding-left: 143pt;text-indent: 0pt;text-align: left;">Setting this variable to <span class="s3">NIL </span>disables all the programmers assistant features.</p><p class="s3" style="padding-top: 10pt;padding-left: 107pt;text-indent: 0pt;text-align: left;">EDITHISTORY</p><p style="padding-top: 7pt;padding-left: 143pt;text-indent: 0pt;line-height: 107%;text-align: left;">This is also set to (<span class="s3">NIL 0 30 100</span>), and has the same description as <span class="s3">LISPXHISTORY</span>. This list allows you to <span class="s3">UNDO </span>edits. You reset this the same way as <span class="s3">LISPXHISTORY</span>.</p><p style="text-indent: 0pt;text-align: left;"><br/></p><h2 style="padding-left: 35pt;text-indent: 0pt;text-align: left;">System Menus                                                                                                  </h2><p style="text-indent: 0pt;text-align: left;"><br/></p><p style="padding-top: 4pt;padding-left: 107pt;text-indent: 0pt;line-height: 106%;text-align: left;">System menus are all bound to global varieables and are easy to modyfy. If the menu name is set to the <span class="s3">NIL </span>value, the menu will be recreated using an items list bound to a global variable.</p><p style="padding-top: 9pt;padding-left: 107pt;text-indent: 0pt;text-align: left;">To change a system menu, edit the items list bound to the appropriate global variable (system menus use this items list with the default <span class="s3">WHENSELECTEDFN </span>), then set the</p><p style="padding-left: 107pt;text-indent: 0pt;text-align: left;">value of the name to NIL. The next time you need the menu, it will be created from the items list you just edited. The names of system menus and the items lists follow.</p><p style="text-indent: 0pt;text-align: left;"><br/></p><p style="padding-left: 107pt;text-indent: 0pt;text-align: left;">BackgroundMenu</p><p style="padding-top: 7pt;padding-left: 143pt;text-indent: 0pt;text-align: left;">This is the variable bound to the menu this displays when you press the right button in the grey background area of the screen.</p><p style="text-indent: 0pt;text-align: left;"><br/></p><p style="padding-left: 107pt;text-indent: 0pt;text-align: left;">BackgroundMenuCommands</p><p style="padding-top: 7pt;padding-left: 143pt;text-indent: 0pt;line-height: 107%;text-align: left;">This list is used for the list of <span class="s3">ITEMS </span>for the background menu when it is created.</p><p style="padding-top: 9pt;padding-left: 107pt;text-indent: 0pt;text-align: left;">WindowMenu</p><p style="padding-top: 7pt;padding-left: 143pt;text-indent: 0pt;text-align: left;">This is the variable bound to the default window menu displayed when the right mouse button is pressed inside of a window.</p><p style="text-indent: 0pt;text-align: left;"><br/></p><p style="padding-top: 4pt;padding-left: 107pt;text-indent: 0pt;text-align: left;">WindowMenuCommands</p><p style="padding-top: 7pt;padding-left: 143pt;text-indent: 0pt;text-align: left;">This is the list of <span class="s3">ITEM</span>S for the WindowMenu.</p><p style="text-indent: 0pt;text-align: left;"><br/></p><p style="padding-left: 107pt;text-indent: 0pt;text-align: left;">BreakMenu</p><p style="padding-top: 7pt;padding-left: 143pt;text-indent: 0pt;text-align: left;">The menu displayed when the middle mouse button is pressed in a break</p><p style="padding-left: 143pt;text-indent: 0pt;text-align: left;">window.</p><p style="text-indent: 0pt;text-align: left;"><br/></p><p style="padding-left: 107pt;text-indent: 0pt;text-align: left;">BreakMenuCommands</p><p style="padding-top: 7pt;padding-left: 143pt;text-indent: 0pt;text-align: left;">The list of <span class="s3">ITEM </span>for the BreakMenu.</p><p style="text-indent: 0pt;text-align: left;"><br/></p><h2 style="padding-left: 35pt;text-indent: 0pt;text-align: left;">Windows                                                                                                            </h2><p style="text-indent: 0pt;text-align: left;"><br/></p><p class="s3" style="padding-top: 5pt;padding-left: 107pt;text-indent: 0pt;text-align: left;">PROMPTWINDOW</p><p style="padding-top: 7pt;padding-left: 143pt;text-indent: 0pt;text-align: left;">Global name of the prompt window.</p><p style="text-indent: 0pt;text-align: left;"><br/></p><p class="s3" style="padding-top: 5pt;padding-left: 107pt;text-indent: 0pt;text-align: left;">T</p><p style="padding-top: 7pt;padding-left: 143pt;text-indent: 0pt;text-align: left;">Although the value <span class="s3">T </span>has several meanings (such as universal <span class="s3">TRUE</span>), it also</p><p style="padding-left: 143pt;text-indent: 0pt;text-align: left;">stands for the standard output stream. As this is usually the executive window, it may be used as the name for the TTY Window at the top level. Mouse</p><p style="padding-left: 143pt;text-indent: 0pt;line-height: 106%;text-align: left;">processes have their own TTY Windows. A reference to the window T in a mouse driven function (e.g., a <span class="s3">WHENSELECTEFN</span>, Chapter 12) will open a TTY Window for Mouse.</p><p style="text-indent: 0pt;text-align: left;"><br/></p><h2 style="padding-top: 4pt;padding-left: 35pt;text-indent: 0pt;text-align: left;">Miscellaneous                                                                                                   </h2><p class="s3" style="padding-top: 9pt;padding-left: 107pt;text-indent: 0pt;text-align: left;">CLEANUPOPTION</p><p style="padding-top: 7pt;padding-left: 143pt;text-indent: 0pt;text-align: justify;">This is a list of options that you set to automate clean-up after a work session. Example options are listing files, or recompilation. You will want to keep this set to NIL until you become comfortable with the machine.</p><p style="text-indent: 0pt;text-align: left;"><br/></p><p class="s3" style="padding-left: 107pt;text-indent: 0pt;text-align: left;">FILELST</p><p style="padding-top: 7pt;padding-left: 143pt;text-indent: 0pt;text-align: justify;">The list of all the files you loaded.</p><p style="text-indent: 0pt;text-align: left;"><br/></p><p class="s3" style="padding-left: 107pt;text-indent: 0pt;text-align: left;">SYSFILES</p><p style="padding-top: 7pt;padding-left: 143pt;text-indent: 0pt;text-align: justify;">The list of all the files you loaded for the <span class="s3">SYSOUT </span>file.</p><p class="s3" style="padding-top: 10pt;padding-left: 107pt;text-indent: 0pt;text-align: left;">INITIALS</p><p style="padding-top: 7pt;padding-left: 143pt;text-indent: 0pt;text-align: left;">An atom you can bind to your name. If bound, the editor will add your name, in addition to the date, in the editor comment at the beginning of each function.</p><p class="s3" style="padding-top: 9pt;padding-left: 107pt;text-indent: 0pt;text-align: left;">FIRSTNAME</p><p style="padding-top: 7pt;padding-left: 143pt;text-indent: 0pt;text-align: left;">If this variable is set, the system will use it to greet you personally when you log on to your machine.</p><p style="text-indent: 0pt;text-align: left;"><br/></p><p class="s3" style="padding-top: 5pt;padding-left: 107pt;text-indent: 0pt;text-align: left;">INITIALSLST</p><p style="padding-top: 7pt;padding-left: 143pt;text-indent: 0pt;line-height: 107%;text-align: left;">A list of elements of the form (<span class="s3">USERNAME </span>. I<span class="s3">NITIALS</span>) or (<span class="s3">USERNAME FIRSTNAME INITIALS</span>). This list is used by the function <span class="s3">GREET </span>to set your <span class="s3">INITIALS </span>, and your <span class="s3">FIRSTNAME </span>when you log in.</p><p class="s3" style="padding-top: 10pt;padding-left: 107pt;text-indent: 0pt;text-align: left;">#CAREFULCOLUMNS</p><p style="padding-top: 7pt;padding-left: 143pt;text-indent: 0pt;text-align: left;">An integer. <span class="s3">PRETTYPRINT </span>estimates the number of characters in an atom,</p><p style="padding-left: 143pt;text-indent: 0pt;line-height: 106%;text-align: left;">instead of computing it, for efficiency. Unfortunately, for very long atom names, errors can occur. <span class="s3">#CAREFULCOLUMNS </span>is the number of columns from the right within which <span class="s3">PRETTYPRINT </span>should compute the number of characters in each</p><p style="padding-left: 143pt;text-indent: 0pt;line-height: 106%;text-align: left;">atom, to prevent these errors. Initially this is set to zero. <span class="s3">PRETTYPRINT </span>never computes the number of characters in an atom. If you set it to 20 or 30, when <span class="s3">PRETTYPRINT </span>comes within 20 or 30 columns of the right of the window, it will begin computing exactly how many characters are in each atom. This will</p><p style="padding-left: 143pt;text-indent: 0pt;text-align: left;">prevent errors.</p><p style="text-indent: 0pt;text-align: left;"><br/></p><p class="s3" style="padding-left: 107pt;text-indent: 0pt;text-align: left;">DWIMWAIT</p><p style="padding-top: 7pt;padding-left: 143pt;text-indent: 0pt;text-align: left;">Bound to the number of seconds DWIM should wait before it uses the default response, <span class="s3">FIXSPELLDEFAULT </span>, to answer its question.</p><p class="s3" style="padding-top: 10pt;padding-left: 107pt;text-indent: 0pt;text-align: left;">FIXSPELLDEFAULT</p><p style="padding-top: 7pt;padding-left: 143pt;text-indent: 0pt;text-align: left;">Bound to either <span class="s3">Y </span>or <span class="s3">N</span>. Its value is used as the default answer to questions</p><p style="padding-left: 143pt;text-indent: 0pt;line-height: 107%;text-align: left;">asked by <span class="s3">DWIM </span>that you don’t answer in <span class="s3">DWIMWAIT </span>seconds. It is initially bound to Y, but is rebound to <span class="s3">N </span>when <span class="s3">DWIMIFY</span>ing.</p><p style="padding-top: 10pt;padding-left: 108pt;text-indent: 0pt;text-align: left;">\<span class="s3">TimeZoneComp</span></p><p style="padding-top: 7pt;padding-left: 143pt;text-indent: 0pt;text-align: left;">This is the global variable set to the absolute value of the time offset from Greenwich. For EST, \<span class="s3">TimeZoneComp </span>should be set to 5.</p><p class="nav">&nbsp;&nbsp;</p><p class="nav">&nbsp;</p><p class="nav"><a href="part26.htm">&lt; Previous</a><span> | </span><a href="../Medley-Primer.html">Contents</a><span> | </span><a href="part28.htm">Next &gt;</a></p><p class="nav">&nbsp;&nbsp;</p></body></html>
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-<html xmlns="http://www.w3.org/1999/xhtml"><head><meta http-equiv="Content-Type" content="text/html; charset=utf-8"/><title>25-REFERENCES</title><link href="navigation.css" rel="stylesheet" type="text/css"/><link href="document.css" rel="stylesheet" type="text/css"/></head><body><p class="top_nav"><a href="part27.htm">&lt; Previous</a><span> | </span><a href="../Medley-Primer.html">Contents</a></p><h1 style="padding-top: 3pt;padding-left: 35pt;text-indent: 0pt;text-align: left;"><a name="bookmark27">25. OTHER USEFUL REFERENCES</a></h1><p style="padding-left: 35pt;text-indent: 0pt;line-height: 6pt;text-align: left;"><span><img width="640" height="8" alt="image" src="Image_160.png"/></span></p><p style="text-indent: 0pt;text-align: left;"><br/></p><p style="padding-top: 15pt;padding-left: 107pt;text-indent: 0pt;text-align: left;">Here are some references to works that will be useful to you in addition to this primer. Some of these you have already been referred to, such as:</p><p style="padding-top: 7pt;padding-left: 108pt;text-indent: 0pt;text-align: left;">• The Interlisp-D Reference Manual (IRM)</p><p style="padding-top: 7pt;padding-left: 108pt;text-indent: 0pt;text-align: left;">• The Library Packages Manual</p><p style="padding-top: 7pt;padding-left: 108pt;text-indent: 0pt;text-align: left;">• The User’s Guide to SKETCH</p><p style="text-indent: 0pt;text-align: left;"><br/></p><p style="padding-left: 107pt;text-indent: 0pt;text-align: left;">In addition, you can learn more about Lisp with the books:</p><p style="padding-top: 7pt;padding-left: 119pt;text-indent: -11pt;text-align: left;">• <i><b>Interlisp-D: The l a ngu ago a n d its usage </b></i>by Steven H. Kaisler. This book was published in 1986 by John Wiley and Sons, NY.</p><p style="padding-top: 7pt;padding-left: 119pt;text-indent: -11pt;text-align: left;">• <i><b>Essenti a l LISP </b></i>by John Anderson, Albert Corbett, and Brian Reiser. This book was published in 1986 by Addison Wesley Publishing Company, Reading, MA. It was</p><p style="padding-left: 119pt;text-indent: 0pt;text-align: left;">informed by research on how beginners learn LISP.</p><p style="padding-top: 7pt;padding-left: 119pt;text-indent: -10pt;text-align: left;">• <i><b>The Little Lisper </b></i>by Daniel P. Friedman and Matthias Felleisen. The second edition of this book was published in 1986 by SRA Associates, Chicago. This book is a</p><p style="padding-left: 119pt;text-indent: 0pt;text-align: left;">deceptively simple introduction to recursive programming and the flexible data structures provided by LISP.</p><p style="padding-top: 7pt;padding-left: 119pt;text-indent: -11pt;text-align: left;">• <i><b>LISP </b></i>by Patrick Winston and Berthold Horn. The second edition of this book was published in 1985 by the Addison Wesley Publishing Company, Reading, MA.</p><p style="padding-top: 7pt;padding-left: 119pt;text-indent: -11pt;text-align: left;">• <i><b>LISP: A Gentle Introd uction to Symbolic Comp ut a tion </b></i>by David S. Touretzky. This book was published in 1984 by the Harper and Row Publishing Company, NY.</p><p style="text-indent: 0pt;text-align: left;"><br/></p><p style="padding-left: 107pt;text-indent: 0pt;text-align: left;">Finally, there are three articles about the Interlisp Programming environment:</p><p style="padding-top: 7pt;padding-left: 119pt;text-indent: -11pt;text-align: left;">• Power Tools For Programmers byBeau Sheil. It appeared in <i>Datamation </i>in February, 1983, Pages 131 - 144.</p><p style="padding-top: 7pt;padding-left: 119pt;text-indent: -11pt;text-align: left;">• The Interlisp Programming Environment by Warren Teitelman and Larry Masinter. It appeared in April, 1981, in <i>IEEE Computer</i>, Volume 14:1, Pages 25 - 34.</p><p style="padding-top: 7pt;padding-left: 108pt;text-indent: 0pt;text-align: left;">• Programming In an Interactive Environment, the LISP Experience by Erik</p><p style="padding-left: 119pt;text-indent: 0pt;text-align: left;">Sandewall. It appeared in March, 1978, in the <i>ACM Computing Surveys</i>, Volume 10:1, pages 35 - 71.</p><p style="text-indent: 0pt;text-align: left;"><br/></p><p style="padding-left: 107pt;text-indent: 0pt;text-align: left;">Each of these articles was reprinted in the book <i><b>Inter active Prog r amming</b></i></p><p class="s14" style="padding-left: 107pt;text-indent: 0pt;text-align: left;">Environ ments <span class="p">by David R. Barstow, Howard E. Shrobe, and Erik Sandewail. This</span></p><p style="padding-left: 107pt;text-indent: 0pt;text-align: left;">book was published in 1984 by McGraw Hill, NY. The first article can be foun d on pages 19 - 30, the second on pages 83 - 96, and the third on pages 31 - 80.</p><p style="text-indent: 0pt;text-align: left;"><br/></p><p style="padding-left: 35pt;text-indent: 0pt;line-height: 1pt;text-align: left;"><span><img width="665" height="1" alt="image" src="Image_161.png"/></span></p><p class="s6" style="padding-left: 35pt;text-indent: 0pt;text-align: left;">Medley for the Novice, Release 2.0</p><p class="nav">&nbsp;&nbsp;</p><p class="nav">&nbsp;</p><p class="nav"><a href="part27.htm">&lt; Previous</a><span> | </span><a href="../Medley-Primer.html">Contents</a></p><p class="nav">&nbsp;&nbsp;</p></body></html>
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-<html xmlns="http://www.w3.org/1999/xhtml"><head><meta http-equiv="Content-Type" content="text/html; charset=utf-8"/><title>002-PREFACE</title><link href="navigation.css" rel="stylesheet" type="text/css"/><link href="document.css" rel="stylesheet" type="text/css"/></head><body><p class="top_nav"><a href="part2.htm">&lt; Previous</a><span> | </span><a href="../Medley-Primer.html">Contents</a><span> | </span><a href="part4.htm">Next &gt;</a></p><h1 style="padding-top: 3pt;padding-left: 35pt;text-indent: 0pt;text-align: left;"><a name="bookmark2">PREFACE</a></h1><p style="padding-left: 35pt;text-indent: 0pt;line-height: 6pt;text-align: left;"><span><img width="640" height="8" alt="image" src="Image_014.png"/></span></p><p style="text-indent: 0pt;text-align: left;"><br/></p><p class="s4" style="padding-left: 107pt;text-indent: 0pt;text-align: justify;">It was dawn and the local told him it was down the road a piece, left at the first fishing bridge in the country, right at the appletree stump, and onto the dirt road just before the hill. At midnight he knew he was lost. <span class="p">-Anonymous</span></p><p style="text-indent: 0pt;text-align: left;"><br/></p><p style="padding-left: 107pt;text-indent: 0pt;text-align: left;">Welcome to the Medley Lisp Development Environment, a collection of powerful tools for assisting you in programming in Lisp, developing sophisticated user interfaces, and creating prototypes of your ideas in a quick and easy manner. Unfortunately, along</p><p style="padding-left: 107pt;text-indent: 0pt;text-align: left;">with the power comes mind-numbing complexity. The Medley documentation set</p><p style="padding-left: 107pt;text-indent: 0pt;text-align: left;">describes all the tools in detail, but it would be unreasonable for us to expect a new user to wade through all of it, so this primer is intended as an introduction, to give you a</p><p style="padding-left: 107pt;text-indent: 0pt;text-align: left;">taste of some of the features.</p><p style="padding-top: 7pt;padding-left: 107pt;text-indent: 0pt;text-align: left;">We developed this primer to provide a starting point for new Medley users, to enhance your excitement and challenge you with the potential before you. We’re going to make some assumptions about you. For starters, we’re going to assume that you’re sitting at a workstation that can run Medley. All of the examples in the book figure that you’re</p><p style="padding-left: 107pt;text-indent: 0pt;text-align: left;">going to want to try things out. We’re also going to assume that you’ve had some exposure to Lisp, hopefully Common Lisp.</p><p style="padding-top: 7pt;padding-left: 107pt;text-indent: 0pt;text-align: left;">Medley actually consists of two complete Lisp implementations, Common Lisp and InterLisp. All the screen I/O and some of the system functions are in InterLisp.</p><p style="padding-left: 107pt;text-indent: 0pt;text-align: left;">However, thanks to the package system, you can call back and forth between the two languages by simply including a package delimiter in front of a symbol name. This sounds complicated, but it will become clearer once we do some examples.</p><p style="padding-top: 7pt;padding-left: 107pt;text-indent: 0pt;text-align: justify;">Throughout we make reference to the <i>lnterlisp-D Reference Manual </i>by section and page number. The material in the primer is just an introduction. When you need more depth, use the detailed treatment provided in the manual.</p><p style="padding-top: 7pt;padding-left: 107pt;text-indent: 0pt;text-align: left;">While only you can plot your ultimate destination, you will flnd this primer</p><p style="padding-left: 107pt;text-indent: 0pt;text-align: left;">indispensable for clearly defining and guiding you to the first landmarks on your way.</p><p style="text-indent: 0pt;text-align: left;"><br/></p><p class="s5" style="padding-left: 107pt;text-indent: 0pt;text-align: left;">Acknowledgements</p><p style="padding-top: 7pt;padding-left: 107pt;text-indent: 0pt;text-align: left;">The early inspiration and model for this primer came from the Intelligent Tutoring</p><p style="padding-left: 107pt;text-indent: 0pt;text-align: left;">Systems group and the Learning Research and Development Center at the University of Pittsburgh. We gratefully acknowledge their pioneering contribution to more effective</p><p style="padding-left: 107pt;text-indent: 0pt;text-align: left;">artificial intelligence.</p><p style="padding-top: 7pt;padding-left: 107pt;text-indent: 0pt;text-align: left;">This primer was originally developed by Computer Possibilities, a company committed to making Al technology available. Primary development and writing was done by</p><p style="padding-left: 107pt;text-indent: 0pt;text-align: left;">Cynthia Cosic, with technical writing support provided by Sam Zordich. It has been re- done by Venue staff to reflect changes in the environment since the original publication.</p><p style="padding-top: 7pt;padding-left: 107pt;text-indent: 0pt;text-align: left;">At Xerox Artificial Intelligence Systems, John Vittal managed and directed the project. Substantial assistance was provided by many members of the AlS staff who provided both editorial and systems support.</p><p style="text-indent: 0pt;text-align: left;"><br/></p><p style="text-indent: 0pt;text-align: left;"><br/></p><p style="padding-left: 35pt;text-indent: 0pt;line-height: 1pt;text-align: left;"><span><img width="665" height="1" alt="image" src="Image_015.png"/></span></p><p class="s6" style="padding-left: 35pt;text-indent: 0pt;text-align: left;">Medley for the Novice, Release 2.0</p><p class="s6" style="padding-top: 2pt;text-indent: 0pt;text-align: right;">vii</p><p class="s7" style="padding-top: 3pt;padding-left: 35pt;text-indent: 0pt;text-align: left;">PREFACE                                                                                                                                                                    </p><p style="text-indent: 0pt;text-align: left;"><br/></p><p style="text-indent: 0pt;text-align: left;"><br/></p><p style="padding-left: 209pt;text-indent: 0pt;text-align: left;">[This page intentionally left blank]</p><p style="text-indent: 0pt;text-align: left;"><br/></p><p style="text-indent: 0pt;text-align: left;"><br/></p><p style="padding-left: 35pt;text-indent: 0pt;line-height: 1pt;text-align: left;"><span><img width="665" height="1" alt="image" src="Image_016.png"/></span></p><p class="s8" style="padding-left: 35pt;text-indent: 0pt;text-align: left;">viii <span class="s6">Medley for the Novice, Release 2.0</span></p><p class="nav">&nbsp;&nbsp;</p><p class="nav">&nbsp;</p><p class="nav"><a href="part2.htm">&lt; Previous</a><span> | </span><a href="../Medley-Primer.html">Contents</a><span> | </span><a href="part4.htm">Next &gt;</a></p><p class="nav">&nbsp;&nbsp;</p></body></html>
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-<html xmlns="http://www.w3.org/1999/xhtml"><head><meta http-equiv="Content-Type" content="text/html; charset=utf-8"/><title>02-TYPING-SHORTCUTS</title><link href="navigation.css" rel="stylesheet" type="text/css"/><link href="document.css" rel="stylesheet" type="text/css"/></head><body><p class="top_nav"><a href="part3.htm">&lt; Previous</a><span> | </span><a href="../Medley-Primer.html">Contents</a><span> | </span><a href="part5.htm">Next &gt;</a></p><h1 style="padding-top: 3pt;padding-left: 35pt;text-indent: 0pt;text-align: left;"><a name="bookmark3">2. TYPING SHORTCUTS</a></h1><p style="padding-left: 35pt;text-indent: 0pt;line-height: 6pt;text-align: left;"><span><img width="640" height="8" alt="image" src="Image_017.png"/></span></p><p style="text-indent: 0pt;text-align: left;"><br/></p><p style="padding-left: 107pt;text-indent: 0pt;text-align: left;">Once you have logged in to Medley, you are in Lisp. The functions you type into the</p><p style="padding-left: 107pt;text-indent: 0pt;text-align: left;">Executive Window will now execute, that is, perform the designated task. Lisp is case-</p><p style="padding-left: 107pt;text-indent: 0pt;text-align: left;">sensitive; it often matters whether text is typed in upper- or lowercase letters. Use the Shift-Lock key on your keyboard to ensure that everything typed is in capital letters.</p><p style="padding-top: 7pt;padding-left: 107pt;text-indent: 0pt;text-align: left;">You must type all Lisp functions in parentheses. The Lisp interpreter will read from the left parenthesis to the closing right parenthesis to determine both the function you want to execute and the arguments to that function. Executing this function is called</p><p style="padding-left: 107pt;text-indent: 0pt;text-align: justify;">&quot;evaluation.&quot; When the function is evaluated, it returns a value, which is then printed in the Executive Window. This entire process is called the read-eval-print loop, and is how most Lisp interpreters, including the one for Lisp, run.</p><p style="padding-top: 7pt;padding-left: 107pt;text-indent: 0pt;text-align: left;">The prompt in is a number followed by a left-pointing arrow (see Figure 2.3). This number is the function’s position on the History List—a list that stores your</p><p style="padding-left: 107pt;text-indent: 0pt;line-height: 107%;text-align: left;">interactions with the Lisp interpreter. Type the function <span class="s3">(PLUS 3 4) </span>, and notice the History List assigns to the function (the number immediately to the left of the arrow).</p><p style="padding-left: 107pt;text-indent: 0pt;text-align: left;">Lisp reads in the function and its arguments, evaluates the function, and then prints the number 7.</p><p style="text-indent: 0pt;text-align: left;"><br/></p><h2 style="padding-left: 35pt;text-indent: 0pt;text-align: left;">Programmer’s Assistant                                                                                  </h2><p style="padding-top: 9pt;padding-left: 107pt;text-indent: 0pt;text-align: justify;">In addition to this read-eval-print loop, there is also a &quot;programmer’s assistant.&quot; It is the programmer’s assistant that prints the number as part of the prompt in the</p><p style="padding-left: 107pt;text-indent: 0pt;text-align: left;">executive window, and uses these numbers to reference the function calls typed after them.</p><p style="padding-top: 7pt;padding-left: 107pt;text-indent: 0pt;text-align: left;">When you issue commands to the programmer’s assistant, you will not use parentheses as you do with ordinary functiion calls. You simply type the command, and some</p><p style="padding-left: 107pt;text-indent: 0pt;text-align: left;">specification that indicates which item on the history list the command refers to. Some programmer’s assistant commands are <span class="s3">FIX</span>, <span class="s3">REDO</span>, and <span class="s3">UNDO</span>. They are explained in</p><p style="padding-left: 107pt;text-indent: 0pt;text-align: left;">detail below.</p><p style="padding-top: 7pt;padding-left: 107pt;text-indent: 0pt;text-align: justify;">Programmer’s assistant commands are useful only at the Lisp top level, that is, when you are typing into the Executive Window. They do not work in user-defined functions.</p><p style="padding-top: 7pt;padding-left: 107pt;text-indent: 0pt;text-align: left;">As an example use of the programmer’s assistant, use <span class="s3">REDO </span>to redo your function call</p><p style="padding-left: 107pt;text-indent: 0pt;text-align: left;"><span class="s3">(PLUS 3 4)</span>. Type <span class="s9">REDO </span>at the prompt (programmer’s assistant commands can be</p><p style="padding-left: 106pt;text-indent: 0pt;text-align: left;">typed in either upper- or lowercase) , then specify the previous expression in one of the following ways:</p><p style="padding-top: 7pt;padding-left: 108pt;text-indent: 0pt;text-align: left;">• When you originally typed in the function you now want to refer to, there was a</p><p style="padding-left: 119pt;text-indent: 0pt;text-align: left;">History List number to the left of the arrow in the prompt. Type this number after the programmer’s assistant command. This is the method illustrated in Figure 2-1.</p><p style="text-indent: 0pt;text-align: left;"><br/></p><p style="padding-left: 224pt;text-indent: 0pt;text-align: left;"><span><img width="228" height="116" alt="image" src="Image_018.gif"/></span></p><p style="padding-top: 7pt;padding-left: 137pt;text-indent: 0pt;text-align: left;">Figure 2-1. Using a Programmer’s Assistant Command to <span class="s3">REDO </span>a Function</p><p style="text-indent: 0pt;text-align: left;"><br/></p><p style="padding-top: 4pt;padding-left: 119pt;text-indent: -10pt;text-align: justify;">• A negative number will specify the function call typed in that number of prompts dago. In this example, you would type in -1, the position immediately before the current position. This is shown in Figure 2-2.</p><p style="text-indent: 0pt;text-align: left;"><br/></p><p style="padding-left: 225pt;text-indent: 0pt;text-align: left;"><span><img width="228" height="116" alt="image" src="Image_019.gif"/></span></p><p style="padding-top: 8pt;padding-left: 119pt;text-indent: 0pt;text-align: left;">Figure 2-2. Using a Negative Number after the Programmer’s Assistant Command</p><p style="padding-top: 7pt;padding-left: 119pt;text-indent: -10pt;text-align: left;">• You can also specify the function for the programmer’s assistant with one of the items that was in that function call. The programmer’s assistant will search</p><p style="padding-left: 119pt;text-indent: 0pt;text-align: left;">backwards in the History List, and use the first function it finds that includes that</p><p style="padding-left: 119pt;text-indent: 0pt;text-align: left;">item. For example, type <span class="s9">REDO PLUS </span>to have the functiion <span class="s3">(PLUS 3 4) </span>reevaluated.</p><p style="padding-top: 7pt;padding-left: 119pt;text-indent: -11pt;text-align: justify;">• If you type a programmer’s assistant cmmand without specifying a function (i.e., simply typing the command, following by a Return), the programmer’s assistant executes the command using the function entered at the previous prompt.</p><p style="padding-top: 7pt;padding-left: 107pt;text-indent: 0pt;text-align: left;">Figure 2-3 shows a few more examples of how to use the programmer’s assistant.</p><p style="text-indent: 0pt;text-align: left;"><br/></p><p style="padding-left: 197pt;text-indent: 0pt;text-align: left;"><span><img width="305" height="286" alt="image" src="Image_020.gif"/></span></p><p style="text-indent: 0pt;text-align: left;"><br/></p><p style="padding-left: 168pt;text-indent: 0pt;text-align: left;">Figure 2-3. Some Applications of the Programmer’s Assistant</p><p style="text-indent: 0pt;text-align: left;"><br/></p><h2 style="padding-left: 35pt;text-indent: 0pt;text-align: left;">If You Make a Mistake                                                                                      </h2><p style="padding-top: 9pt;padding-left: 107pt;text-indent: 0pt;text-align: left;">Editing in the Executive Window is explained in detail in Chapter 7. In the following section, only a few of the most useful commands are repeated.</p><p style="padding-top: 7pt;padding-left: 107pt;text-indent: 0pt;text-align: left;">To move the caret to a new place in the command being typed, point the mouse cursor at the appropriate position. Then press the left mouse button.</p><p style="text-indent: 0pt;text-align: left;"><br/></p><p style="padding-top: 4pt;padding-left: 107pt;text-indent: 0pt;text-align: left;">To move the caret back to the end of the command being typed, press Control-X (hold the Control key down, and type <b>X</b>).</p><p style="text-indent: 0pt;text-align: left;"><br/></p><p style="padding-top: 4pt;padding-left: 107pt;text-indent: 0pt;text-align: left;">To delete:</p><p style="padding-top: 7pt;padding-left: 131pt;text-indent: 0pt;text-align: left;">Character behind the caret Press the Backspace key</p><p style="padding-top: 7pt;padding-left: 131pt;text-indent: 0pt;text-align: left;">Word behind the caret Press Control-W (hold the Control key down and type</p><p style="padding-left: 263pt;text-indent: 0pt;text-align: left;">W)</p><p style="padding-top: 7pt;padding-left: 131pt;text-indent: 0pt;text-align: left;">Any part of the command Move the caret to the appropriate place in the</p><p style="padding-left: 263pt;text-indent: 0pt;text-align: left;">command. Hold the right mouse button down and move the the mouse cursor over the text. All of the</p><p style="padding-left: 263pt;text-indent: 0pt;text-align: left;">blackened text between the caret and mouse cursor is deleted when you release the right mouse button.</p><p style="padding-top: 7pt;padding-left: 131pt;text-indent: 0pt;text-align: left;">Entire command Press Control-U (hold the Control key down and type</p><p class="s10" style="padding-left: 263pt;text-indent: 0pt;text-align: left;">U<span class="p">)</span></p><p style="padding-top: 7pt;padding-left: 107pt;text-indent: 0pt;text-align: left;">Deletions can be undone. J ust press the <span class="s3">UNDO </span>key.</p><p style="padding-top: 7pt;padding-left: 107pt;text-indent: 0pt;text-align: left;">To add more text to the line, move the carent to the appropriate position and start to type. Whatever you type will appear at the caret.</p><p style="text-indent: 0pt;text-align: left;"><br/></p><p style="text-indent: 0pt;text-align: left;"><br/></p><p style="padding-left: 209pt;text-indent: 0pt;text-align: left;">[This page intentionally left blank]</p><p style="text-indent: 0pt;text-align: left;"><span><img width="640" height="8" alt="image" src="Image_021.png"/></span></p><p class="nav">&nbsp;&nbsp;</p><p class="nav">&nbsp;</p><p class="nav"><a href="part3.htm">&lt; Previous</a><span> | </span><a href="../Medley-Primer.html">Contents</a><span> | </span><a href="part5.htm">Next &gt;</a></p><p class="nav">&nbsp;&nbsp;</p></body></html>
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-<html xmlns="http://www.w3.org/1999/xhtml"><head><meta http-equiv="Content-Type" content="text/html; charset=utf-8"/><title>003-TOC</title><link href="navigation.css" rel="stylesheet" type="text/css"/><link href="document.css" rel="stylesheet" type="text/css"/></head><body><p class="top_nav"><a href="part4.htm">&lt; Previous</a><span> | </span><a href="../Medley-Primer.html">Contents</a><span> | </span><a href="part6.htm">Next &gt;</a></p><h1 style="padding-top: 3pt;padding-left: 35pt;text-indent: 0pt;text-align: left;"><a name="bookmark4">TABLE of CONTENTS</a></h1><p class="s5" style="padding-top: 39pt;padding-left: 35pt;text-indent: 0pt;text-align: left;">Preface <span class="s6">vii</span></p><p class="s5" style="padding-top: 25pt;padding-left: 35pt;text-indent: 0pt;text-align: left;">1. Brief Glossary <span class="s6">1-1</span></p><p class="s5" style="padding-top: 8pt;padding-left: 35pt;text-indent: 0pt;text-align: left;">2. Typing Shortcuts</p><p class="s6" style="padding-top: 5pt;padding-left: 83pt;text-indent: 0pt;text-align: left;">Programmer’s Assistant 2-1</p><p class="s6" style="padding-top: 5pt;padding-left: 83pt;text-indent: 0pt;text-align: left;">If You Make a Mistake 2-2</p><p class="s5" style="padding-top: 8pt;padding-left: 35pt;text-indent: 0pt;text-align: left;">3. Using Menus</p><p class="s6" style="padding-top: 5pt;padding-left: 83pt;text-indent: 0pt;text-align: left;">Making a Selection from a Menu 3-1</p><p class="s6" style="padding-top: 5pt;padding-left: 83pt;text-indent: 0pt;text-align: left;">Explanations of Menu Items 3-2</p><p class="s6" style="padding-top: 5pt;padding-left: 83pt;text-indent: 0pt;text-align: left;">Submenus 3-2</p><p class="s6" style="padding-top: 5pt;padding-left: 83pt;text-indent: 0pt;text-align: left;">Summary 3-3</p><p class="s5" style="padding-top: 8pt;padding-left: 35pt;text-indent: 0pt;text-align: left;">4. How to Use Files</p><p class="s6" style="padding-top: 5pt;padding-left: 83pt;text-indent: 0pt;text-align: left;">Types of Files 4-1</p><p class="s6" style="padding-top: 5pt;padding-left: 83pt;text-indent: 0pt;text-align: left;">Directories 4-1</p><p class="s6" style="padding-top: 5pt;padding-left: 83pt;text-indent: 0pt;text-align: left;">Directory Options 4-2</p><p class="s6" style="padding-top: 5pt;padding-left: 83pt;text-indent: 0pt;text-align: left;">Subdirectories 4-2</p><p class="s6" style="padding-top: 5pt;padding-left: 83pt;text-indent: 0pt;text-align: left;">To See What Files Are Loaded 4-3</p><p class="s6" style="padding-top: 5pt;padding-left: 83pt;text-indent: 0pt;text-align: left;">Simple Commands for Manipulating Files 4-3</p><p class="s6" style="padding-top: 5pt;padding-left: 83pt;text-indent: 0pt;text-align: left;">Connecting to a Directory 4-3</p><p class="s6" style="padding-top: 5pt;padding-left: 83pt;text-indent: 0pt;text-align: left;">File Version Numbers 4-4</p><p class="s5" style="padding-top: 8pt;padding-left: 35pt;text-indent: 0pt;text-align: left;">5. FileBrowser</p><p class="s6" style="padding-top: 5pt;padding-left: 83pt;text-indent: 0pt;text-align: left;">Calling the FileBrowser 5-1</p><p class="s6" style="padding-top: 5pt;padding-left: 83pt;text-indent: 0pt;text-align: left;">FileBrowser Commands 5-3</p><p class="s5" style="padding-top: 8pt;padding-left: 35pt;text-indent: 0pt;text-align: left;">6. Those Wondertul Windows!</p><p class="s6" style="padding-top: 5pt;padding-left: 83pt;text-indent: 0pt;text-align: left;">Windows Provided by Medley 6-1</p><p class="s6" style="padding-top: 5pt;padding-left: 83pt;text-indent: 0pt;text-align: left;">Creating a Window 6-2</p><p class="s6" style="padding-top: 5pt;padding-left: 83pt;text-indent: 0pt;text-align: left;">Right Button Default Window Menu 6-2</p><p class="s6" style="padding-top: 5pt;padding-left: 83pt;text-indent: 0pt;text-align: left;">Explanation of Each Menu Item 6-3</p><p class="s6" style="padding-top: 5pt;padding-left: 83pt;text-indent: 0pt;text-align: left;">Scrollable Windows 6-4</p><p class="s6" style="padding-top: 5pt;padding-left: 83pt;text-indent: 0pt;text-align: left;">Other Window Functions 6-5</p><p class="s6" style="padding-top: 5pt;padding-left: 107pt;text-indent: 0pt;text-align: left;">PROMPTPRlNT 6-5</p><p class="s6" style="padding-top: 5pt;padding-left: 107pt;text-indent: 0pt;text-align: left;">WHlCHW 6-6</p><p class="s5" style="padding-top: 19pt;padding-left: 35pt;text-indent: 0pt;text-align: left;">7. Editing and Saving</p><p class="s6" style="padding-top: 5pt;padding-left: 83pt;text-indent: 0pt;text-align: left;">Defining Functions 7-1</p><p class="s6" style="padding-top: 5pt;padding-left: 83pt;text-indent: 0pt;text-align: left;">Simple Editing in the Executive Window 7-2</p><p class="s6" style="padding-top: 5pt;padding-left: 83pt;text-indent: 0pt;text-align: left;">Using the List Structure Editor 7-3</p><p class="s6" style="padding-top: 5pt;padding-left: 83pt;text-indent: 0pt;text-align: left;">Commenting Functions 7-4</p><p class="s6" style="padding-top: 5pt;padding-left: 83pt;text-indent: 0pt;text-align: left;">File Functions and Variables: How to See and Save Them 7-5</p><p class="s6" style="padding-top: 5pt;padding-left: 83pt;text-indent: 0pt;text-align: left;">File Variables 7-5</p><p class="s6" style="padding-top: 5pt;padding-left: 83pt;text-indent: 0pt;text-align: left;">Saving Interlisp-D on Files 7-5</p><p class="s5" style="padding-top: 8pt;padding-left: 35pt;text-indent: 0pt;text-align: left;">8. Your Init File</p><p class="s6" style="padding-top: 5pt;padding-left: 83pt;text-indent: 0pt;text-align: left;">Using the USERGREETFILES Variable 8-1</p><p class="s6" style="padding-top: 5pt;padding-left: 83pt;text-indent: 0pt;text-align: left;">Making an Init File 8-1</p><p class="s5" style="padding-top: 8pt;padding-left: 35pt;text-indent: 0pt;text-align: left;">9. Medley Forgiveness: DWIM <span class="s6">9-1</span></p><p class="s5" style="padding-top: 8pt;padding-left: 35pt;text-indent: 0pt;text-align: left;">10. Break Package</p><p class="s6" style="padding-top: 5pt;padding-left: 83pt;text-indent: 0pt;text-align: left;">Break Windows 10-1</p><p class="s6" style="padding-top: 5pt;padding-left: 83pt;text-indent: 0pt;text-align: left;">Break Package Examples 10-1</p><p class="s6" style="padding-top: 5pt;padding-left: 83pt;text-indent: 0pt;text-align: left;">Ways to Stop Execution from the Keyboard (Breaking Lisp) 10-3</p><p class="s6" style="padding-top: 5pt;padding-left: 83pt;text-indent: 0pt;text-align: left;">Break Menu 10-3</p><p class="s6" style="padding-top: 5pt;padding-left: 83pt;text-indent: 0pt;text-align: left;">Returning to Top Level 10-4</p><p class="s5" style="padding-top: 8pt;padding-left: 35pt;text-indent: 0pt;text-align: left;">11. WhatTo Do lf <span class="s6">11-1</span></p><p class="s5" style="padding-top: 8pt;padding-left: 35pt;text-indent: 0pt;text-align: left;">12. Window and Regions</p><p class="s6" style="padding-top: 5pt;padding-left: 83pt;text-indent: 0pt;text-align: left;">Windows 12-1</p><p class="s6" style="padding-top: 5pt;padding-left: 107pt;text-indent: 0pt;text-align: left;">CREATEW 12-1</p><p class="s6" style="padding-top: 5pt;padding-left: 107pt;text-indent: 0pt;text-align: left;">WlNDOWPROP 12-2</p><p class="s6" style="padding-top: 5pt;padding-left: 107pt;text-indent: 0pt;text-align: left;">Getting Windows to Do Things 12-3</p><p class="s6" style="padding-top: 5pt;padding-left: 107pt;text-indent: 0pt;text-align: left;">BUTTONEVENTFN 12-5</p><p class="s6" style="padding-top: 5pt;padding-left: 107pt;text-indent: 0pt;text-align: left;">Looking at a Window’s Properties 12-5</p><p class="s6" style="padding-top: 5pt;padding-left: 83pt;text-indent: 0pt;text-align: left;">Regions 12-5</p><p class="s5" style="padding-top: 8pt;padding-left: 35pt;text-indent: 0pt;text-align: left;">13. What Are Menus?</p><p class="s6" style="padding-top: 5pt;padding-left: 83pt;text-indent: 0pt;text-align: left;">Displaying Menus 13-1</p><p class="s6" style="padding-top: 5pt;padding-left: 83pt;text-indent: 0pt;text-align: left;">Getting Menus to Do Stuff 13-2</p><p class="s6" style="padding-top: 5pt;padding-left: 83pt;text-indent: 0pt;text-align: left;">WHENHELDFN and WHENSELECTEDFN Fields of a Menu 13-3</p><p class="s6" style="padding-top: 5pt;padding-left: 83pt;text-indent: 0pt;text-align: left;">Looking at a Menu’s Fields 13-5</p><p class="s5" style="padding-top: 8pt;padding-left: 35pt;text-indent: 0pt;text-align: left;">14. Bitmaps <span class="s6">14-1</span></p><p class="s5" style="padding-top: 18pt;padding-left: 35pt;text-indent: 0pt;text-align: left;">15. Displaystreams</p><p class="s6" style="padding-top: 5pt;padding-left: 83pt;text-indent: 0pt;text-align: left;">Drawing on a Displaystream 15-1</p><p class="s6" style="padding-top: 5pt;padding-left: 107pt;text-indent: 0pt;text-align: left;">DRAWUNE 15-1</p><p class="s6" style="padding-top: 5pt;padding-left: 107pt;text-indent: 0pt;text-align: left;">DRAWTO 15-2</p><p class="s6" style="padding-top: 5pt;padding-left: 107pt;text-indent: 0pt;text-align: left;">DRAWCIRCLE 15-3</p><p class="s6" style="padding-top: 5pt;padding-left: 107pt;text-indent: 0pt;text-align: left;">FILLCIRCLE 15-1</p><p class="s6" style="padding-top: 5pt;padding-left: 83pt;text-indent: 0pt;text-align: left;">Locating and Changing Your Position in a Displaystream 15-4</p><p class="s6" style="padding-top: 5pt;padding-left: 107pt;text-indent: 0pt;text-align: left;">DSPXP0SITION 15-5</p><p class="s6" style="padding-top: 5pt;padding-left: 107pt;text-indent: 0pt;text-align: left;">DSPYPOSlTION 15-5</p><p class="s6" style="padding-top: 5pt;padding-left: 107pt;text-indent: 0pt;text-align: left;">MOVETO 15-5</p><p class="s5" style="padding-top: 8pt;padding-left: 35pt;text-indent: 0pt;text-align: left;">16. Fonts</p><p class="s6" style="padding-top: 5pt;padding-left: 83pt;text-indent: 0pt;text-align: left;">What Makes Up a Font 16-1</p><p class="s6" style="padding-top: 5pt;padding-left: 83pt;text-indent: 0pt;text-align: left;">Fontdescriptors and FONTCREATE 16-2</p><p class="s6" style="padding-top: 5pt;padding-left: 83pt;text-indent: 0pt;text-align: left;">Display Fonts 16-3</p><p class="s6" style="padding-top: 5pt;padding-left: 83pt;text-indent: 0pt;text-align: left;">InterPress Fonts 16-3</p><p class="s6" style="padding-top: 5pt;padding-left: 83pt;text-indent: 0pt;text-align: left;">Functions for Using Fonts 16-4</p><p class="s6" style="padding-top: 5pt;padding-left: 107pt;text-indent: 0pt;text-align: left;">FONTPROP - Looking at Font Properties 16-4</p><p class="s6" style="padding-top: 5pt;padding-left: 107pt;text-indent: 0pt;text-align: left;">STRINGWlDTH 16-5</p><p class="s6" style="padding-top: 5pt;padding-left: 107pt;text-indent: 0pt;text-align: left;">DSPFONT- Changing the Font in One Window 16-5</p><p class="s6" style="padding-top: 5pt;padding-left: 83pt;text-indent: 0pt;text-align: left;">Personalizing Your Font Profile 16-6</p><p class="s5" style="padding-top: 8pt;padding-left: 35pt;text-indent: 0pt;text-align: left;">17. The Inspector</p><p class="s6" style="padding-top: 5pt;padding-left: 83pt;text-indent: 0pt;text-align: left;">Calling the Inspector 17-1</p><p class="s6" style="padding-top: 5pt;padding-left: 83pt;text-indent: 0pt;text-align: left;">Using the Inspector 17-2</p><p class="s6" style="padding-top: 5pt;padding-left: 83pt;text-indent: 0pt;text-align: left;">Inspector Example 17-2</p><p class="s5" style="padding-top: 8pt;padding-left: 35pt;text-indent: 0pt;text-align: left;">18. Masterscope</p><p class="s6" style="padding-top: 5pt;padding-left: 83pt;text-indent: 0pt;text-align: left;">SHOW DATA Command and GRAPHER 18-2</p><p class="s5" style="padding-top: 8pt;padding-left: 35pt;text-indent: 0pt;text-align: left;">19. Where Does All the Time Go? SPY</p><p class="s6" style="padding-top: 5pt;padding-left: 83pt;text-indent: 0pt;text-align: left;">How to Use Spy with the SPY Window 19-1</p><p class="s6" style="padding-top: 5pt;padding-left: 83pt;text-indent: 0pt;text-align: left;">How to Use SPY from the Lisp Top Level 19-2</p><p class="s6" style="padding-top: 5pt;padding-left: 83pt;text-indent: 0pt;text-align: left;">Interpreting SPY’s Results 19-2</p><p class="s5" style="padding-top: 8pt;padding-left: 35pt;text-indent: 0pt;text-align: left;">20. Free Menus</p><p class="s6" style="padding-top: 5pt;padding-left: 83pt;text-indent: 0pt;text-align: left;">Free Menu Example 20-1</p><p class="s6" style="padding-top: 5pt;padding-left: 83pt;text-indent: 0pt;text-align: left;">Parts of a Free Menu Item 20-2</p><p class="s6" style="padding-top: 5pt;padding-left: 83pt;text-indent: 0pt;text-align: left;">Types of Free Menu Items 20-3</p><p class="s5" style="padding-top: 19pt;padding-left: 35pt;text-indent: 0pt;text-align: left;">21. The Grapher</p><p class="s6" style="padding-top: 5pt;padding-left: 83pt;text-indent: 0pt;text-align: left;">Say it with Graphs 21-1</p><p class="s6" style="padding-top: 5pt;padding-left: 107pt;text-indent: 0pt;text-align: left;">Add a Node 21-2</p><p class="s6" style="padding-top: 5pt;padding-left: 107pt;text-indent: 0pt;text-align: left;">Add a Link 21-2</p><p class="s6" style="padding-top: 5pt;padding-left: 107pt;text-indent: 0pt;text-align: left;">Delete a Link 21-2</p><p class="s6" style="padding-top: 5pt;padding-left: 107pt;text-indent: 0pt;text-align: left;">Delete a Node 21-2</p><p class="s6" style="padding-top: 5pt;padding-left: 107pt;text-indent: 0pt;text-align: left;">Move a Node 21-2</p><p class="s6" style="padding-top: 5pt;padding-left: 83pt;text-indent: 0pt;text-align: left;">Making a Graph from a List 21-2</p><p class="s6" style="padding-top: 5pt;padding-left: 83pt;text-indent: 0pt;text-align: left;">Incorporating Grapher into Your Program 21-2</p><p class="s6" style="padding-top: 5pt;padding-left: 83pt;text-indent: 0pt;text-align: left;">More of Grapher 21-2</p><p class="s5" style="padding-top: 8pt;padding-left: 35pt;text-indent: 0pt;text-align: left;">22. Resource Management</p><p class="s6" style="padding-top: 5pt;padding-left: 83pt;text-indent: 0pt;text-align: left;">Naming Variables and Records 22-1</p><p class="s6" style="padding-top: 5pt;padding-left: 83pt;text-indent: 0pt;text-align: left;">Some Space and Time Considerations 22-2</p><p class="s6" style="padding-top: 5pt;padding-left: 107pt;text-indent: 0pt;text-align: left;">Global Variables 22-3</p><p class="s6" style="padding-top: 5pt;padding-left: 107pt;text-indent: 0pt;text-align: left;">Circular Lists 22-3</p><p class="s6" style="padding-top: 5pt;padding-left: 107pt;text-indent: 0pt;text-align: left;">When You Run Out of Space 22-4</p><p class="s5" style="padding-top: 8pt;padding-left: 35pt;text-indent: 0pt;text-align: left;">23. Simple Interactions with the Cursor, a Bitmap, and a Window</p><p class="s6" style="padding-top: 5pt;padding-left: 83pt;text-indent: 0pt;text-align: left;">GETMOUSESTATE Example Function 23-1</p><p class="s6" style="padding-top: 5pt;padding-left: 83pt;text-indent: 0pt;text-align: left;">Advising GETMOUSESTATE 23-2</p><p class="s6" style="padding-top: 5pt;padding-left: 83pt;text-indent: 0pt;text-align: left;">Changing the Cursor 23-2</p><p class="s6" style="padding-top: 5pt;padding-left: 83pt;text-indent: 0pt;text-align: left;">Functions for Tracing the Cursor 23-3</p><p class="s6" style="padding-top: 5pt;padding-left: 83pt;text-indent: 0pt;text-align: left;">Running the Functions 23-6</p><p class="s5" style="padding-top: 8pt;padding-left: 35pt;text-indent: 0pt;text-align: left;">24. Glossary of Global System Variables</p><p class="s6" style="padding-top: 5pt;padding-left: 83pt;text-indent: 0pt;text-align: left;">Directories 24-1</p><p class="s6" style="padding-top: 5pt;padding-left: 83pt;text-indent: 0pt;text-align: left;">Flags 24-2</p><p class="s6" style="padding-top: 5pt;padding-left: 83pt;text-indent: 0pt;text-align: left;">History Lists 24-3</p><p class="s6" style="padding-top: 5pt;padding-left: 83pt;text-indent: 0pt;text-align: left;">System Menus 24-3</p><p class="s6" style="padding-top: 5pt;padding-left: 83pt;text-indent: 0pt;text-align: left;">Windows 24-4</p><p class="s6" style="padding-top: 5pt;padding-left: 83pt;text-indent: 0pt;text-align: left;">Miscellaneous 24-4</p><p class="s5" style="padding-top: 8pt;padding-left: 35pt;text-indent: 0pt;text-align: left;">25. Other Useful References <span class="s6">25.1</span></p><p class="s5" style="padding-top: 24pt;padding-left: 35pt;text-indent: 0pt;text-align: left;">Index<span class="s6">.............................................................................................................................................. INDEX-1</span></p><p style="text-indent: 0pt;text-align: left;"><br/></p><p class="s6" style="padding-left: 61pt;text-indent: 0pt;text-align: center;">[This page intentionally left blank]</p><p class="nav">&nbsp;&nbsp;</p><p class="nav">&nbsp;</p><p class="nav"><a href="part4.htm">&lt; Previous</a><span> | </span><a href="../Medley-Primer.html">Contents</a><span> | </span><a href="part6.htm">Next &gt;</a></p><p class="nav">&nbsp;&nbsp;</p></body></html>
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-<html xmlns="http://www.w3.org/1999/xhtml"><head><meta http-equiv="Content-Type" content="text/html; charset=utf-8"/><title>03-USING-MENUS</title><link href="navigation.css" rel="stylesheet" type="text/css"/><link href="document.css" rel="stylesheet" type="text/css"/></head><body><p class="top_nav"><a href="part5.htm">&lt; Previous</a><span> | </span><a href="../Medley-Primer.html">Contents</a><span> | </span><a href="part7.htm">Next &gt;</a></p><h1 style="padding-top: 3pt;padding-left: 35pt;text-indent: 0pt;text-align: left;"><a name="bookmark5">3. USING MENUS</a></h1><p style="padding-left: 35pt;text-indent: 0pt;line-height: 6pt;text-align: left;"><span><img width="640" height="8" alt="image" src="Image_022.png"/></span></p><p style="text-indent: 0pt;text-align: left;"><br/></p><p style="padding-left: 107pt;text-indent: 0pt;text-align: left;">The purpose of this chapter is to show you how to use menus. Many things can be done more easily using menus, and there are many different menus provided in the Medley</p><p style="padding-left: 107pt;text-indent: 0pt;text-align: left;">environment. Some are &quot;pop-up&quot; menus that are only available until a selection is made, then disappear until they are needed again. An example of one of these is the Background Menu that appears when the mouse is not in any window and the right</p><p style="padding-left: 107pt;text-indent: 0pt;text-align: left;">mouse button is pressed. A background menu is shown in Figure 3-1. Your background menu may have different items on it.</p><p style="text-indent: 0pt;text-align: left;"><br/></p><p style="padding-left: 261pt;text-indent: 0pt;text-align: left;"><span><img width="133" height="97" alt="image" src="Image_023.gif"/></span></p><p style="padding-top: 7pt;padding-left: 240pt;text-indent: 0pt;text-align: left;">Figure 3-1. Background Menu</p><p style="padding-top: 7pt;padding-left: 107pt;text-indent: 0pt;text-align: left;">Another common pop-up menu is the right button default window menu. This menu is explained more in Chapter 6.</p><p style="padding-top: 7pt;padding-left: 107pt;text-indent: 0pt;text-align: justify;">Other menus are more permanent, such as the menu that is always available for use with the Filebrowser. This menu is shown in Figure 3-2., and the specifics of its use with the filebrowser are explained in Chapter 5.</p><p style="text-indent: 0pt;text-align: left;"><br/></p><p style="padding-left: 276pt;text-indent: 0pt;text-align: left;"><span><img width="92" height="161" alt="image" src="Image_024.gif"/></span></p><p style="padding-top: 8pt;padding-left: 241pt;text-indent: 0pt;text-align: left;">Figure 3-2. Filebrowser Menu</p><p style="text-indent: 0pt;text-align: left;"><br/></p><h2 style="padding-left: 35pt;text-indent: 0pt;text-align: left;">Making a Selection from a Menu                                                                     </h2><p style="padding-top: 9pt;padding-left: 107pt;text-indent: 0pt;text-align: justify;">To make a selection from a menu, point with the mouse to the item you would like to select. If one of the mouse buttons is already pressed, the menu item should be</p><p style="padding-left: 107pt;text-indent: 0pt;text-align: justify;">highlighted in reverse video. If it is a permanent menu, you must press the left mouse button to highlight the item. When you release the button,m the item will be selected. Figure 3-3 shows a menu with the item &quot;Undo&quot; chosen.</p><p style="text-indent: 0pt;text-align: left;"><br/></p><p style="padding-left: 291pt;text-indent: 0pt;text-align: left;"><span><img width="52" height="51" alt="image" src="Image_025.gif"/></span></p><p style="padding-top: 7pt;padding-left: 111pt;text-indent: 0pt;text-align: center;">Figure 3-3.  Menu with  the Item &quot;Undo&quot; Chosen</p><p style="text-indent: 0pt;text-align: left;"><br/></p><h2 style="padding-left: 35pt;text-indent: 0pt;text-align: left;">Explanation of Menu Items                                                                              </h2><p style="padding-top: 9pt;padding-left: 107pt;text-indent: 0pt;text-align: left;">Many menu items have explanations associated with the. If you are not sure what the consequences of choosing a particular menu iem will be, highlight the menu item but do not releast the left mouse button. If the menu item has an explanation associated with it, the explanation will be printed in the prompt window. Figure 3-4 shows the</p><p style="padding-left: 107pt;text-indent: 0pt;text-align: left;">explanation associated with the item &quot;Snap&quot; from the background menu.</p><p style="text-indent: 0pt;text-align: left;"><br/></p><p style="padding-left: 118pt;text-indent: 0pt;text-align: left;"><span><img width="513" height="83" alt="image" src="Image_026.gif"/></span></p><p style="text-indent: 0pt;text-align: left;"><br/></p><p style="padding-left: 260pt;text-indent: 0pt;text-align: left;"><span><img width="134" height="184" alt="image" src="Image_027.gif"/></span></p><p style="text-indent: 0pt;text-align: left;"><br/></p><p style="padding-left: 111pt;text-indent: 0pt;text-align: center;">Figure 3-4.   Explanation Associated with Selected Menu Item</p><p style="text-indent: 0pt;text-align: left;"><br/></p><h2 style="padding-left: 35pt;text-indent: 0pt;text-align: left;">Submenus                                                                                                         </h2><p style="padding-top: 6pt;padding-left: 107pt;text-indent: 0pt;text-align: left;">Some menu items have submenus associated with them. This means that, for these items, you can make even more precise choices if you would like to.</p><p style="padding-top: 7pt;padding-left: 107pt;text-indent: 0pt;text-align: left;">A submenu can also be foun d as described below.</p><p style="padding-top: 7pt;padding-left: 107pt;text-indent: 0pt;text-align: left;">As shown in Figure 3-5, a submenu can be indicated by a gray arrow to the right of the menu item. To see the submenu, highlight the menu item and move the mose to the</p><p style="padding-left: 107pt;text-indent: 0pt;text-align: left;">right to follow the arrow. Choosing an item from a submenu is done the same way you make a choice from the menu. Any submenus that might be associated with the items in the submenu are indicated in the same way as the submenus associated with the</p><p style="padding-left: 107pt;text-indent: 0pt;text-align: left;">items in the menu.</p><p class="s6" style="padding-top: 3pt;text-indent: 0pt;text-align: right;">3. USING MENUS</p><p style="padding-left: 35pt;text-indent: 0pt;line-height: 1pt;text-align: left;"><span><img width="665" height="1" alt="image" src="Image_028.png"/></span></p><p style="text-indent: 0pt;text-align: left;"><br/></p><p style="padding-left: 254pt;text-indent: 0pt;text-align: left;"><span><img width="149" height="162" alt="image" src="Image_029.gif"/></span></p><p style="text-indent: 0pt;text-align: left;"><br/></p><p style="padding-top: 4pt;padding-left: 183pt;text-indent: 0pt;text-align: left;">Figure 3-5. Edit Submenu Displayed with Right Arrow</p><p style="text-indent: 0pt;text-align: left;"><br/></p><h2 style="padding-left: 35pt;text-indent: 0pt;text-align: left;">Summary                                                                                                           </h2><p style="padding-top: 6pt;padding-left: 107pt;text-indent: 0pt;text-align: left;">In summary, here are a few rules of thumb to remember about the interactions of the mouse and system menus:</p><p style="padding-top: 7pt;padding-left: 108pt;text-indent: 0pt;text-align: left;">• Press the left mouse button to select a menu item</p><p style="padding-top: 7pt;padding-left: 108pt;text-indent: 0pt;text-align: left;">• Press the middle mouse button to get more options on a submenu</p><p style="padding-top: 7pt;padding-left: 119pt;text-indent: -11pt;text-align: left;">• Press the right mouse button to see the default right button window menu, and the background menu</p><p style="text-indent: 0pt;text-align: left;"><br/></p><p style="text-indent: 0pt;text-align: left;"><br/></p><p style="padding-left: 209pt;text-indent: 0pt;text-align: left;">[This page intentionally left blank]</p><p class="nav">&nbsp;&nbsp;</p><p class="nav">&nbsp;</p><p class="nav"><a href="part5.htm">&lt; Previous</a><span> | </span><a href="../Medley-Primer.html">Contents</a><span> | </span><a href="part7.htm">Next &gt;</a></p><p class="nav">&nbsp;&nbsp;</p></body></html>
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-<html xmlns="http://www.w3.org/1999/xhtml"><head><meta http-equiv="Content-Type" content="text/html; charset=utf-8"/><title>04-USING-FILES</title><link href="navigation.css" rel="stylesheet" type="text/css"/><link href="document.css" rel="stylesheet" type="text/css"/></head><body><p class="top_nav"><a href="part6.htm">&lt; Previous</a><span> | </span><a href="../Medley-Primer.html">Contents</a><span> | </span><a href="part8.htm">Next &gt;</a></p><h1 style="padding-top: 3pt;padding-left: 35pt;text-indent: 0pt;text-align: left;"><a name="bookmark6">4. HOW TO USE FILES</a></h1><p style="padding-left: 35pt;text-indent: 0pt;line-height: 6pt;text-align: left;"><span><img width="640" height="8" alt="image" src="Image_030.png"/></span></p><p style="text-indent: 0pt;text-align: left;"><br/></p><h2 style="padding-left: 35pt;text-indent: 0pt;text-align: left;">Types of Files                                                                                                   </h2><p style="padding-top: 9pt;padding-left: 107pt;text-indent: 0pt;text-align: left;">A program file, or Lisp file, contains a series of expressions that can be read and</p><p style="padding-left: 107pt;text-indent: 0pt;text-align: left;">evaluated by the Lisp interpreter. These expressions can include function or macro</p><p style="padding-left: 107pt;text-indent: 0pt;text-align: left;">definitions, variables and their values, properties of variables, and so on. How to save Interlisp-D expressions on these files is explained in Chapter 7. Loading a file is</p><p style="padding-left: 107pt;text-indent: 0pt;text-align: left;">explained in the Simple Commands for Manipulating Files section below.</p><p style="padding-top: 7pt;padding-left: 107pt;text-indent: 0pt;text-align: left;">Not all files, however, have Lisp expressions stored on them. For example, TEdit files store text; sketches are stored on files made with the package Sketch , or can be</p><p style="padding-left: 107pt;text-indent: 0pt;text-align: left;">incorporated into TEdit files. These files are not loaded directly into the environment, but are accessed with the package used to create them, such as TEdit or Sketch.</p><p style="padding-top: 7pt;padding-left: 107pt;text-indent: 0pt;text-align: left;">When you name a file, there are conventions that you should follow. These conventions allow you to tell the type of file by the extension to its name.</p><p class="s10" style="padding-top: 7pt;padding-left: 107pt;text-indent: 0pt;text-align: left;">If a file contains: Then:</p><p style="padding-top: 7pt;padding-left: 107pt;text-indent: 0pt;text-align: left;">Lisp expressions It should not have an extension or have the extension</p><p class="s3" style="padding-left: 251pt;text-indent: 0pt;line-height: 107%;text-align: left;">.LISP<span class="p">. For example, a file called </span>MYCODE <span class="p">should contain Lisp expressions.</span></p><p style="padding-top: 6pt;padding-left: 107pt;text-indent: 0pt;text-align: left;">Compiled Code It should have the extension <span class="s3">.LCOM or .DFASL</span>. For</p><p style="padding-left: 251pt;text-indent: 0pt;line-height: 107%;text-align: left;">example, a file called <span class="s3">MYCODE.DFASL </span>should contain compiled code.</p><p style="padding-top: 6pt;padding-left: 251pt;text-indent: -144pt;line-height: 107%;text-align: left;">A Sketch Its extension should be <span class="s3">.SKETCH</span>. For example, a file called <span class="s3">MOUNTAINS.SKETCH </span>should contain a Sketch.</p><p style="padding-top: 7pt;padding-left: 251pt;text-indent: -143pt;line-height: 107%;text-align: left;">Text It should have the extension <span class="s3">.TEDIT</span>. For example, a file called <span class="s3">REPORT.TEDIT </span>should contain text that can be edited with the editor <span class="s3">TEDIT</span>.</p><p style="text-indent: 0pt;text-align: left;"><br/></p><h2 style="padding-left: 35pt;text-indent: 0pt;text-align: left;">Directories                                                                                                         </h2><p style="padding-top: 9pt;padding-left: 107pt;text-indent: 0pt;line-height: 106%;text-align: left;">This section focu ses on how you can find files, and how you can easily manipulate files. To see all the files listed on a device, use the function <span class="s3">DIR</span>. For example, to see what files are stored in your current directory, type:</p><p class="s3" style="padding-top: 7pt;padding-left: 143pt;text-indent: 0pt;text-align: left;">(DIR *.*)</p><p style="padding-top: 7pt;padding-left: 107pt;text-indent: 0pt;text-align: justify;">Partial directory listings can be gotten by specifying a file name, rather than just a</p><p style="padding-left: 107pt;text-indent: 0pt;line-height: 107%;text-align: justify;">device name. The wildcard character <span class="s3">* </span>can be used to match any number of unknown characters. For example, the command <span class="s3">(DIR T*) </span>will list the names of all files that begin with the letter <span class="s3">T</span>. An example using the wildcard is shown in Figure 4-1.</p><p style="text-indent: 0pt;text-align: left;"><br/></p><p style="padding-left: 198pt;text-indent: 0pt;text-align: left;"><span><img width="300" height="139" alt="image" src="Image_031.gif"/></span></p><p style="text-indent: 0pt;text-align: left;"><br/></p><p style="padding-top: 4pt;padding-left: 220pt;text-indent: 0pt;text-align: left;">Figure 4-1. Using <span class="s3">DIR </span>with a Wildcard</p><p style="text-indent: 0pt;text-align: left;"><br/></p><h2 style="padding-left: 35pt;text-indent: 0pt;text-align: left;">Directory Options                                                                                             </h2><p style="padding-top: 9pt;padding-left: 107pt;text-indent: 0pt;line-height: 107%;text-align: left;">Various words can appear as extra arguments to the <span class="s3">DIR </span>command. these words give you extra information about the files.</p><p class="s3" style="padding-top: 6pt;padding-left: 107pt;text-indent: 0pt;text-align: left;">SIZE <span class="p">displays the size of each file in the directory. For example, type:</span></p><p class="s3" style="padding-top: 8pt;padding-left: 143pt;text-indent: 0pt;text-align: left;">(DIR {DSK} SIZE)</p><p class="s3" style="padding-top: 7pt;padding-left: 107pt;text-indent: 0pt;line-height: 107%;text-align: left;">DATE <span class="p">displays the creation date of each file in the directory. An example of this is shown in Figure 4-2.</span></p><p style="text-indent: 0pt;text-align: left;"><br/></p><p style="padding-left: 198pt;text-indent: 0pt;text-align: left;"><span><img width="300" height="139" alt="image" src="Image_032.gif"/></span></p><p style="padding-top: 9pt;padding-left: 106pt;text-indent: 127pt;line-height: 164%;text-align: left;">Figure 4-2. Example Using <span class="s3">DATE DEL </span>deletes all the files foun d by the directory command.</p><p style="text-indent: 0pt;text-align: left;"><br/></p><h2 style="padding-top: 9pt;padding-left: 35pt;text-indent: 0pt;text-align: left;">Subdirectories                                                                                                  </h2><p style="padding-top: 9pt;padding-left: 107pt;text-indent: 0pt;text-align: left;">Sudirectories are very helpful for organizing files. A set of files that have a single</p><p style="padding-left: 107pt;text-indent: 0pt;text-align: left;">purpose (for example, all the external documentation files for a system) can be grouped together into a subdirectory.</p><p style="padding-top: 7pt;padding-left: 107pt;text-indent: 0pt;text-align: left;">To associate a subdirectory with a filename, simply include the desired subdirectory as part of the name of the file. Subdirectories are specified after the device name and</p><p style="padding-left: 107pt;text-indent: 0pt;text-align: left;">before the simple filename. The first subdirectory should be between less-than and</p><p style="padding-left: 107pt;text-indent: 0pt;text-align: left;">greater-than signs (angle brackets) &lt; &gt;, with nested subdirectory names only followed by a greater than sign &gt;. For example:</p><p class="s3" style="padding-top: 8pt;padding-left: 143pt;text-indent: 0pt;text-align: left;">{DSK}&lt;Directory&gt;SubDirectory&gt;SubSubDirectory&gt;...&gt;filename</p><p style="padding-top: 7pt;padding-left: 107pt;text-indent: 0pt;text-align: left;">or use the UNIX convention:</p><p class="s3" style="padding-top: 7pt;padding-left: 143pt;text-indent: 0pt;text-align: left;">{DSK}/Directory/Subdirectory/Subsubdirectory/filename</p><p style="text-indent: 0pt;text-align: left;"><br/></p><h2 style="padding-top: 4pt;padding-left: 35pt;text-indent: 0pt;text-align: left;">To See What Files Are Loaded                                                                        </h2><p style="padding-top: 9pt;padding-left: 107pt;text-indent: 0pt;line-height: 164%;text-align: left;">If you type <span class="s3">FILELST&lt;CR&gt;</span>, the names of all the files you loaded will be displayed. Type <span class="s3">SYSFILES&lt;CR&gt; </span>to see what files are loaded to create the sysout.</p><p style="text-indent: 0pt;text-align: left;"><br/></p><h2 style="padding-top: 9pt;padding-left: 35pt;text-indent: 0pt;text-align: left;">Simple Commands for Manipulating Files                                                     </h2><p style="padding-top: 9pt;padding-left: 107pt;text-indent: 0pt;text-align: left;">When using these functions, always be sure to specify the full filename, including subfile directories if appropriate.</p><p style="padding-top: 7pt;padding-left: 107pt;text-indent: 0pt;text-align: left;">To have the conents of a file displayed in a window:</p><p class="s3" style="padding-top: 7pt;padding-left: 143pt;text-indent: 0pt;text-align: left;">(SEE ’<span class="s4">filename</span>)</p><p style="padding-top: 7pt;padding-left: 107pt;text-indent: 0pt;text-align: left;">To copy a file (see Figure 4-3):</p><p class="s3" style="padding-top: 7pt;padding-left: 143pt;text-indent: 0pt;text-align: left;">(COPYFILE ’<span class="s4">oldfilename </span>’<span class="s4">newfilename</span>)</p><p style="text-indent: 0pt;text-align: left;"><br/></p><p style="padding-left: 143pt;text-indent: 0pt;text-align: left;"><span><img width="447" height="114" alt="image" src="Image_033.gif"/></span></p><p style="padding-top: 7pt;padding-left: 221pt;text-indent: 0pt;text-align: left;">Figure 4-3. Example Use of <span class="s3">COPYFILE</span></p><p style="padding-top: 7pt;padding-left: 107pt;text-indent: 0pt;text-align: left;">To delete a file (see Figure 4-4):</p><p class="s3" style="padding-top: 7pt;padding-left: 143pt;text-indent: 0pt;text-align: left;">(DELFILE ’<span class="s4">filename</span>)</p><p style="text-indent: 0pt;text-align: left;"><br/></p><p style="padding-left: 143pt;text-indent: 0pt;text-align: left;"><span><img width="447" height="114" alt="image" src="Image_034.gif"/></span></p><p style="padding-top: 7pt;padding-left: 224pt;text-indent: 0pt;text-align: left;">Figure 4-4. Example Use of <span class="s3">DELFILE</span></p><p style="padding-top: 7pt;padding-left: 107pt;text-indent: 0pt;text-align: left;">To rename a file:</p><p class="s4" style="padding-top: 7pt;padding-left: 143pt;text-indent: 0pt;text-align: left;"><span class="s3">(RENAMEFILE ’</span>oldfilename <span class="p">’</span>newfilename<span class="s3">)</span></p><p style="padding-top: 7pt;padding-left: 107pt;text-indent: 0pt;text-align: left;">Files that contain Lisp expressions can be loaded into the environment. That means that the information on them is read, evaluated, and incorporated into the Medley</p><p style="padding-left: 107pt;text-indent: 0pt;text-align: left;">environment. To load a file, type:</p><p class="s3" style="padding-top: 7pt;padding-left: 143pt;text-indent: 0pt;text-align: left;">(LOAD ’<span class="s4">filename</span>)</p><p style="text-indent: 0pt;text-align: left;"><br/></p><h2 style="padding-left: 35pt;text-indent: 0pt;text-align: left;">Connecting to a Directory                                                                               </h2><p style="padding-top: 9pt;padding-left: 107pt;text-indent: 0pt;text-align: justify;">Often, each person or project has a subdirectory where files are stored. If this is your situation, you will want any files you create to be put into this directory automatically. This means you should &quot;connect&quot; to the directory.</p><p style="text-indent: 0pt;text-align: left;"><br/></p><p class="s3" style="padding-top: 4pt;padding-left: 107pt;text-indent: 0pt;line-height: 107%;text-align: left;">CONN <span class="p">is the Medley command that connects you to a directory. For example, </span>CONN <span class="p">in Figure 4-5 connects you to the subsubdirectory </span>IM<span class="p">, in the subdirectory </span>PRIMER <span class="p">, the directory </span>LISPFILES<span class="p">, on the device </span>DSK<span class="p">. This information—the device and the</span></p><p style="padding-left: 107pt;text-indent: 0pt;text-align: left;">directory names down to the subdirectory to which you want to be connected—is called the &quot;path&quot; to that subdirectory. <span class="s3">CONN </span>expects the path to a directory as an argument.</p><p style="text-indent: 0pt;text-align: left;"><br/></p><p style="padding-left: 143pt;text-indent: 0pt;text-align: left;"><span><img width="447" height="114" alt="image" src="Image_035.gif"/></span></p><p style="text-indent: 0pt;text-align: left;"><br/></p><p style="padding-left: 156pt;text-indent: 0pt;text-align: left;">Figure 4-5. <span class="s3">CONN</span>ecting to Subdirectory Primer Subsubdirectory <span class="s3">IM</span></p><p style="padding-top: 7pt;padding-left: 107pt;text-indent: 0pt;line-height: 107%;text-align: left;">Once you are connected to a directory, the command <span class="s3">DIR </span>will assume you want to see the files in that directory, or any of its subdirectories.</p><p style="padding-top: 6pt;padding-left: 107pt;text-indent: 0pt;line-height: 106%;text-align: left;">Other commands that require a filename as an argument (e.g., <span class="s3">SEE</span>, above) will assume that the file is in the connecteds directory if there is no path specified with the filename. This will often save you typing.</p><p style="text-indent: 0pt;text-align: left;"><br/></p><h2 style="padding-left: 35pt;text-indent: 0pt;text-align: left;">File Version Numbers                                                                                      </h2><p style="padding-top: 9pt;padding-left: 107pt;text-indent: 0pt;text-align: left;">When stored, each filename is fillowed by a semicolon and a number, as shown in this example:</p><p class="s3" style="padding-top: 8pt;padding-left: 143pt;text-indent: 0pt;text-align: left;">MYFILE.TEDIT;1</p><p style="padding-top: 7pt;padding-left: 107pt;text-indent: 0pt;text-align: left;">The number is the version number of the file. This is the system’s way of protecting your files from being overwritten. Each time the file is written, a new file is created with a version number one greater than the last. This new file will have everything from your previous file, plus all of your changes.</p><p style="padding-top: 7pt;padding-left: 107pt;text-indent: 0pt;text-align: left;">In most cases, you can exclude the version number when referencing the file. When the version is not specified, and there is more than one version of the file on that particular directory, the system generally uses your most recent version. An exception is the</p><p style="padding-left: 107pt;text-indent: 0pt;line-height: 107%;text-align: left;">function <span class="s3">DELFILE</span>, which deletes the oldest version (the one with the lowest version number) if none is specified.</p><p style="text-indent: 0pt;text-align: left;"><br/></p><p style="text-indent: 0pt;text-align: left;"><br/></p><p style="padding-left: 209pt;text-indent: 0pt;text-align: left;">[This page intentionally left blank]</p><p class="nav">&nbsp;&nbsp;</p><p class="nav">&nbsp;</p><p class="nav"><a href="part6.htm">&lt; Previous</a><span> | </span><a href="../Medley-Primer.html">Contents</a><span> | </span><a href="part8.htm">Next &gt;</a></p><p class="nav">&nbsp;&nbsp;</p></body></html>
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-<html xmlns="http://www.w3.org/1999/xhtml"><head><meta http-equiv="Content-Type" content="text/html; charset=utf-8"/><title>05-FILEBROWSER</title><link href="navigation.css" rel="stylesheet" type="text/css"/><link href="document.css" rel="stylesheet" type="text/css"/></head><body><p class="top_nav"><a href="part7.htm">&lt; Previous</a><span> | </span><a href="../Medley-Primer.html">Contents</a><span> | </span><a href="part9.htm">Next &gt;</a></p><h1 style="padding-top: 3pt;padding-left: 35pt;text-indent: 0pt;text-align: left;"><a name="bookmark7">5. FILEBROWSER</a></h1><p style="padding-left: 35pt;text-indent: 0pt;line-height: 6pt;text-align: left;"><span><img width="640" height="8" alt="image" src="Image_036.png"/></span></p><p style="text-indent: 0pt;text-align: left;"><br/></p><p style="padding-top: 15pt;padding-left: 107pt;text-indent: 0pt;text-align: left;">The FileBrowser is a Lisp Library Package that works with files stored on disk and floppy devices, and can be used as a file directory editor. If it is not loaded into your sysout, you need to load it first by typing:</p><p class="s3" style="padding-top: 6pt;padding-left: 143pt;text-indent: 0pt;text-align: left;">(LOAD ’FILEBROWSER.LCOM)</p><p style="text-indent: 0pt;text-align: left;"><br/></p><h2 style="padding-left: 35pt;text-indent: 0pt;text-align: left;">Calling the FileBrowser                                                                                   </h2><p style="text-indent: 0pt;text-align: left;"><br/></p><p style="padding-top: 4pt;padding-left: 107pt;text-indent: 0pt;text-align: left;">Calling the FileBrowser with the directory calls up the files stored in that directory:</p><p class="s3" style="padding-top: 7pt;padding-left: 143pt;text-indent: 0pt;text-align: left;">(FB ’&lt;usr&gt;local&gt;lde&gt;)</p><p style="text-indent: 0pt;text-align: left;"><br/></p><p style="padding-left: 107pt;text-indent: 0pt;text-align: left;">Another way to call a FileBrowser is to choose &quot;FileBrowser&quot; from the background</p><p style="padding-left: 107pt;text-indent: 0pt;text-align: left;">menu. You will be prompted for a description of the files to be included (see Figure 5-1). Type an asterisk (*), then press Return to see all the files in the connected directory.</p><p style="text-indent: 0pt;text-align: left;"><br/></p><p style="padding-left: 195pt;text-indent: 0pt;text-align: left;"><span><img width="307" height="206" alt="image" src="Image_037.gif"/></span></p><p style="text-indent: 0pt;text-align: left;"><br/></p><p style="padding-top: 4pt;padding-left: 185pt;text-indent: 0pt;text-align: left;">Figure 5-1. Prompt for Files to Include in FileBrowser</p><p style="text-indent: 0pt;text-align: left;"><br/></p><p style="padding-left: 107pt;text-indent: 0pt;text-align: left;">These show a directory of the device in a window you can leave on the screen at all times. The parts of the FileBrowser window are shown below.</p><p style="text-indent: 0pt;text-align: left;"><br/></p><p style="text-indent: 0pt;text-align: left;"><br/></p><p style="text-indent: 0pt;text-align: left;"><span><img width="498" height="371" alt="image" src="Image_038.png"/></span></p><p class="s3" style="text-indent: 0pt;text-align: left;">Prompt Window</p><p class="s3" style="text-indent: 0pt;text-align: left;">Prompt Window</p><p style="text-indent: 0pt;text-align: left;"/><p class="s3" style="text-indent: 0pt;text-align: left;">Prompt Window</p><p class="s11" style="text-indent: 0pt;text-align: left;">  </p><p class="s11" style="text-indent: 0pt;text-align: left;">  </p><p style="text-indent: 0pt;text-align: left;"/><p class="s11" style="text-indent: 0pt;text-align: left;">  </p><p class="s3" style="text-indent: 0pt;text-align: left;">Command Menu  <u>   </u></p><p class="s3" style="text-indent: 0pt;text-align: left;">Command Menu  <u>   </u></p><p style="text-indent: 0pt;text-align: left;"/><p class="s3" style="text-indent: 0pt;text-align: left;">Command Menu  <u>   </u></p><p class="s11" style="text-indent: 0pt;text-align: left;">         <span class="s3">  File List</span></p><p class="s11" style="text-indent: 0pt;text-align: left;">         <span class="s3">  File List</span></p><p style="text-indent: 0pt;text-align: left;"/><p class="s11" style="text-indent: 0pt;text-align: left;">         <span class="s3">  File List</span></p><p style="padding-top: 4pt;padding-left: 107pt;text-indent: 103pt;line-height: 191%;text-align: left;">Figure 5-2. Parts of a FileBrowser Window Now you do not need to continually type the directory command.</p><p style="padding-left: 107pt;text-indent: 0pt;text-align: left;">To use the FileBrowser, choose a file by pointing to the file with the mouse and pressing the left or middle mouse button. A small dark arrow appears to the left of the file</p><p style="padding-left: 107pt;text-indent: 0pt;text-align: left;">name. Choose a command from the menu at the right. In Figure 5-3, the files</p><p class="s3" style="padding-left: 107pt;text-indent: 0pt;text-align: left;">OCH1.TEDIT;1<span class="p">, </span>OCH10.TEDIT;1<span class="p">, and </span>OCH11.TEDIT;1 <span class="p">have been selected.</span></p><p style="text-indent: 0pt;text-align: left;"><br/></p><p style="padding-left: 106pt;text-indent: 0pt;text-align: left;">The left mouse button only allows you to choose one file at a time. Even if you choose other files, only the last file you selected with the left mouse button will remain</p><p style="padding-left: 107pt;text-indent: 0pt;text-align: left;">marked as chosen. When you use the middle mouse button to select a file, the file is added to those already chosen.</p><p style="text-indent: 0pt;text-align: left;"><br/></p><p style="padding-left: 107pt;text-indent: 0pt;text-align: left;">To unpick an already chosen file, hold the Control key down while pressing the middle mouse button.</p><p style="text-indent: 0pt;text-align: left;"><br/></p><p style="padding-left: 195pt;text-indent: 0pt;text-align: left;"><span><img width="307" height="174" alt="image" src="Image_039.gif"/></span></p><p style="text-indent: 0pt;text-align: left;"><br/></p><p style="padding-left: 253pt;text-indent: 0pt;text-align: left;">Figure 5-3. Files Chosen</p><p class="s6" style="padding-top: 3pt;text-indent: 0pt;text-align: right;">5. FILEBROWSER</p><p style="padding-left: 35pt;text-indent: 0pt;line-height: 1pt;text-align: left;"><span><img width="665" height="1" alt="image" src="Image_040.png"/></span></p><p style="text-indent: 0pt;text-align: left;"><br/></p><p style="padding-top: 4pt;padding-left: 19pt;text-indent: 0pt;text-align: center;">The next section contains a  summary of  the FileBrowser commands.</p><p style="text-indent: 0pt;text-align: left;"><br/></p><h2 style="padding-left: 35pt;text-indent: 0pt;text-align: left;">FileBrowser Commands                                                                                  </h2><p style="text-indent: 0pt;text-align: left;"><br/></p><p class="s3" style="padding-top: 4pt;padding-left: 179pt;text-indent: -54pt;line-height: 107%;text-align: left;">Delete <span class="p">In the FileBrowser, this command marks a file, or files, for deletion (see Figure 5-4). These files are marked by a black line crossing through</span></p><p style="padding-left: 179pt;text-indent: 0pt;line-height: 106%;text-align: left;">them. You may select and mark any number of files for deletion. <span class="s3">Delete </span>does not actually remove these files from the device. The <span class="s3">Expunge </span>command actually wipes out the files previously marked for deletion.</p><p style="text-indent: 0pt;text-align: left;"><br/></p><p style="padding-left: 195pt;text-indent: 0pt;text-align: left;"><span><img width="307" height="177" alt="image" src="Image_041.gif"/></span></p><p style="text-indent: 0pt;text-align: left;"><br/></p><p style="padding-left: 223pt;text-indent: 0pt;text-align: left;">Figure 5-4. Files Marked for Deletion</p><p style="text-indent: 0pt;text-align: left;"><br/></p><p class="s3" style="padding-left: 179pt;text-indent: -66pt;line-height: 107%;text-align: left;">Undelete <span class="p">Undoes the delete command for one or more files. Undelete erases the black line through a file marked for deletion.</span></p><p class="s3" style="padding-top: 9pt;padding-left: 137pt;text-indent: 0pt;text-align: left;">Copy <span class="p">This command copies the chosen file. The destination filename should</span></p><p style="padding-left: 179pt;text-indent: 0pt;text-align: left;">be typed at a prompt that appears in the window above the FileBrowser.</p><p style="padding-left: 179pt;text-indent: 0pt;text-align: left;">Wildcards do not work for this prompt. You must type the whole</p><p style="padding-left: 179pt;text-indent: 0pt;text-align: left;">unquoted filename. If more than one file is chosen to be copied, you will be prompted for a directory name. The files will be copied into the</p><p style="padding-left: 179pt;text-indent: 0pt;text-align: left;">directory you give, but with the same filenames as the ones they have in their original location.</p><p style="text-indent: 0pt;text-align: left;"><br/></p><p class="s3" style="padding-left: 179pt;text-indent: -54pt;line-height: 107%;text-align: left;">Rename <span class="p">This command works much like the Copy command, but does not leave the original file. The chosen file will be renamed to the destination</span></p><p style="padding-left: 179pt;text-indent: 0pt;line-height: 11pt;text-align: left;">filename. You will be prompted, in the prompt window, for the</p><p style="padding-left: 179pt;text-indent: 0pt;text-align: left;">destination filename. Give the complete unquoted filename. If more</p><p style="padding-left: 179pt;text-indent: 0pt;text-align: left;">than one file is chose to be renamed, you will be prompted for a directory name. The files will be moved into the directory you give.</p><p style="text-indent: 0pt;text-align: left;"><br/></p><p class="s3" style="padding-left: 179pt;text-indent: -66pt;line-height: 107%;text-align: left;">Hardcopy <span class="p">If you do not have a hardcopy device, using this command causes an error. Otherwise, it gives a hardcopy of the file.</span></p><p class="s3" style="padding-top: 9pt;padding-left: 179pt;text-indent: -36pt;line-height: 107%;text-align: left;">See <span class="p">Shows you a file in a window. To use this command, choose a single filename, then the See command. You are prompted for a window.</span></p><p style="padding-left: 179pt;text-indent: 0pt;text-align: left;">Each time the See command is chosen, a new window is opened to display the file.</p><p class="s3" style="padding-top: 9pt;padding-left: 179pt;text-indent: -42pt;line-height: 107%;text-align: left;">Edit <span class="p">Calls the editor with the file as input. If the file is an executable one (i.e., Lisp code as opposed to a documentation file), only the </span>FILECOMS <span class="p">list is edited. The </span>FILECOMS <span class="p">list is the list of variables, lists, and</span></p><p style="text-indent: 0pt;text-align: left;"><br/></p><p style="padding-top: 4pt;padding-left: 179pt;text-indent: 0pt;text-align: left;">functions that are contained on that file. FileBrowser loads it and then allows you to edit the <span class="s3">FILECOMS </span>.</p><p class="s3" style="padding-top: 10pt;padding-left: 137pt;text-indent: 0pt;text-align: left;">Load <span class="p">Choose a file with the left mouse button, or a group of files with the</span></p><p style="padding-left: 179pt;text-indent: 0pt;text-align: left;">middle mouse button. Once the filenames have been blackened, choose the Load command to load them all into Medley.</p><p style="text-indent: 0pt;text-align: left;"><br/></p><p class="s3" style="padding-left: 179pt;text-indent: -60pt;line-height: 107%;text-align: left;">Compile <span class="p">This command calls the file compiler with the chosen filename(s) as arguments. The compiler compiles a file foun d on a storage device</span></p><p style="padding-left: 179pt;text-indent: 0pt;line-height: 107%;text-align: left;">(<span class="s3">{DSK}</span>), not the functions defined in the Medley image. If any functions on a loaded file have been changed, run the function (<span class="s3">MAKEFILE ’filename</span>) to write the current version before compiling it. Files do not have to be loaded to use the <span class="s3">Compile </span>command.</p><p class="s3" style="padding-top: 10pt;padding-left: 119pt;text-indent: 0pt;text-align: left;">Expunge <span class="p">This command completely deletes all the marked files from the</span></p><p style="padding-left: 179pt;text-indent: 0pt;text-align: left;">directory. This allows you to remove unwanted files from your storage device.</p><p style="text-indent: 0pt;text-align: left;"><br/></p><p class="s3" style="padding-left: 107pt;text-indent: 0pt;text-align: left;">Recompute <span class="p">Choose this command when you know that the directory has been</span></p><p style="padding-left: 179pt;text-indent: 0pt;text-align: left;">changed and should be reread (e.g., after creating new versions of a file).</p><p class="nav">&nbsp;&nbsp;</p><p class="nav">&nbsp;</p><p class="nav"><a href="part7.htm">&lt; Previous</a><span> | </span><a href="../Medley-Primer.html">Contents</a><span> | </span><a href="part9.htm">Next &gt;</a></p><p class="nav">&nbsp;&nbsp;</p></body></html>
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-<html xmlns="http://www.w3.org/1999/xhtml"><head><meta http-equiv="Content-Type" content="text/html; charset=utf-8"/><title>06-WINDOWS</title><link href="navigation.css" rel="stylesheet" type="text/css"/><link href="document.css" rel="stylesheet" type="text/css"/></head><body><p class="top_nav"><a href="part8.htm">&lt; Previous</a><span> | </span><a href="../Medley-Primer.html">Contents</a><span> | </span><a href="part10.htm">Next &gt;</a></p><h1 style="padding-top: 3pt;padding-left: 35pt;text-indent: 0pt;text-align: left;"><a name="bookmark8">6. THOSE WONDERFUL WINDOWS!</a></h1><p style="padding-left: 35pt;text-indent: 0pt;line-height: 6pt;text-align: left;"><span><img width="640" height="8" alt="image" src="Image_042.png"/></span></p><p style="text-indent: 0pt;text-align: left;"><br/></p><p style="padding-top: 15pt;padding-left: 107pt;text-indent: 0pt;text-align: left;">A window is a designated area on the screen. Every rectangular box on the screen is a window. While Medley supplies many of the windows (such as the Executive Window), you may also create your own. Among other things, you will type, draw pictures, and</p><p style="padding-left: 107pt;text-indent: 0pt;text-align: left;">save portions of your screen with windows.</p><p style="text-indent: 0pt;text-align: left;"><br/></p><h2 style="padding-left: 35pt;text-indent: 0pt;text-align: left;">Windows Provided by Medley                                                                         </h2><p style="text-indent: 0pt;text-align: left;"><br/></p><p style="padding-top: 4pt;padding-left: 107pt;text-indent: 0pt;text-align: left;">Two important windows are available as soon as you enter the Medley environment.</p><p style="padding-left: 107pt;text-indent: 0pt;text-align: left;">One is the Executive Window, the main window where you will run your functions. It is the window that the caret is in when you turn on your machine, and load Medley. It is</p><p style="padding-bottom: 2pt;padding-left: 107pt;text-indent: 0pt;text-align: left;">shown in Figure 6-1.</p><p style="padding-left: 196pt;text-indent: 0pt;text-align: left;"><span><img width="240" height="130" alt="image" src="Image_043.gif"/></span></p><p style="text-indent: 0pt;text-align: left;"><br/></p><p style="padding-left: 111pt;text-indent: 0pt;text-align: center;">Figure 6-1. Medley  Executive Window</p><p style="text-indent: 0pt;text-align: left;"><br/></p><p style="padding-top: 7pt;padding-bottom: 1pt;padding-left: 107pt;text-indent: 0pt;text-align: justify;">The other window that is open when you enter Medley is the &quot;Prompt Window&quot;. It is the long thin black window at the top of the screen. It displays system prompts, or prompts you have associated with your programs. (See Figure 6-2.)</p><p style="padding-left: 170pt;text-indent: 0pt;text-align: left;"><span><img width="311" height="152" alt="image" src="Image_044.gif"/></span></p><p style="text-indent: 0pt;text-align: left;"><br/></p><p style="padding-left: 111pt;text-indent: 0pt;text-align: center;">Figure 6-2. Prompt Window</p><p style="text-indent: 0pt;text-align: left;"><br/></p><p style="padding-top: 7pt;padding-left: 107pt;text-indent: 0pt;text-align: left;">Other programs, such as the editors, also use windows. These windows appear when</p><p style="padding-left: 107pt;text-indent: 0pt;text-align: justify;">the program starts to run, and close (no longer appear on the screen) when the program is done running.</p><p style="text-indent: 0pt;text-align: left;"><br/></p><h2 style="padding-top: 4pt;padding-left: 35pt;text-indent: 0pt;text-align: left;">Creating a Window                                                                                           </h2><p style="text-indent: 0pt;text-align: left;"><br/></p><p style="padding-top: 4pt;padding-left: 107pt;text-indent: 0pt;line-height: 107%;text-align: left;">To create a new window, type: <span class="s9">(CREATEW)</span>. The mouse cursor will change, and have a small square attached to it. (See Figure 6-3.)</p><p style="text-indent: 0pt;text-align: left;"><br/></p><p style="text-indent: 0pt;text-align: left;"><br/></p><p style="padding-left: 220pt;text-indent: 0pt;text-align: left;"><span><img width="168" height="187" alt="image" src="Image_045.gif"/></span></p><p style="text-indent: 0pt;text-align: left;"><br/></p><p style="padding-left: 171pt;text-indent: 0pt;text-align: left;">Figure 6-3. Mouse Cursor Asking You to Sweep Out Window</p><p style="text-indent: 0pt;text-align: left;"><br/></p><p style="padding-left: 107pt;text-indent: 0pt;text-align: left;">There may be a prompt in the prompt window to create a window. Press and hold the left mouse button. Move the mouse around, and notice that it sweeps out a rectangle. When the rectangle is the size that you’d like your window to be, release the left mouse button. More specific information about the creation of windows, such as giving them</p><p style="padding-left: 107pt;text-indent: 0pt;text-align: left;">titles and specifying their size and position on the screen when they are created, is given in the <span class="s3">WINDOWPROP </span>section of Chapter 12.</p><p style="text-indent: 0pt;text-align: left;"><br/></p><h2 style="padding-left: 35pt;text-indent: 0pt;text-align: left;">Right Button Default Window Menu                                                               </h2><p style="padding-top: 9pt;padding-left: 107pt;text-indent: 0pt;text-align: left;">Position the cursor inside the window you just created, and press and hold the right mouse button. A menu of commands should appear (do not release the right button!), like the one in Figure 6-4. To execute one of the commands on this menu, choose the item. Making a choice from a menu is explained in Chapter 3.</p><p style="text-indent: 0pt;text-align: left;"><br/></p><p style="text-indent: 0pt;text-align: left;"><br/></p><p style="padding-left: 288pt;text-indent: 0pt;text-align: left;"><span><img width="71" height="122" alt="image" src="Image_046.gif"/></span></p><p style="text-indent: 0pt;text-align: left;"><br/></p><p style="padding-top: 4pt;padding-left: 202pt;text-indent: 0pt;text-align: left;">Figure 6-4 Right Button Default Window Menu</p><p style="text-indent: 0pt;text-align: left;"><br/></p><p style="padding-top: 7pt;padding-left: 107pt;text-indent: 0pt;text-align: left;">As an example, select &quot;Move&quot; from this menu. The mouse cursor will become a ghost window (ju st an outline of a window, the same size as the one you are moving), with a square attached to one corner, like the one shown in Figure 6-5.</p><p style="text-indent: 0pt;text-align: left;"><br/></p><p style="padding-left: 305pt;text-indent: 0pt;text-align: left;"><span><img width="16" height="16" alt="image" src="Image_047.gif"/></span></p><p style="text-indent: 0pt;text-align: left;"><br/></p><p style="padding-top: 4pt;padding-left: 111pt;text-indent: 0pt;text-align: center;">Figure 6-5 Mouse Cursor for  Moving a  Window</p><p style="text-indent: 0pt;text-align: left;"><br/></p><p style="padding-top: 7pt;padding-left: 107pt;text-indent: 0pt;text-align: left;">Move the mouse around. The ghost window will follow. Click the left mouse button to place tho window in a new location.</p><p style="text-indent: 0pt;text-align: left;"><br/></p><p style="padding-left: 106pt;text-indent: 0pt;text-align: left;">Choose &quot;Shape&quot;, and notice that you are prompted to sweep out another window. Your original window will have the shape of the window you sketch out.</p><p style="text-indent: 0pt;text-align: left;"><br/></p><h2 style="padding-left: 35pt;text-indent: 0pt;text-align: left;">Explanation of Each Menu Item                                                                      </h2><p style="padding-top: 9pt;padding-left: 107pt;text-indent: 0pt;text-align: left;">The meaning of each right button default window menu item is explained below:</p><p style="text-indent: 0pt;text-align: left;"><br/></p><p style="padding-left: 107pt;text-indent: 0pt;text-align: left;">Close Removes the window from the screen</p><p style="padding-top: 7pt;padding-left: 107pt;text-indent: 0pt;line-height: 165%;text-align: left;">Snap Copies a portion of the screen into a new window Paint Allows drawing in a window</p><p style="padding-left: 107pt;text-indent: 0pt;line-height: 165%;text-align: left;">Clear Clears the window by erasing everything within the window boundaries Bury Puts the window beneath all other windows that overlap it</p><p style="padding-left: 107pt;text-indent: 0pt;text-align: left;">Redisplay Redisplays the window contents</p><p style="padding-top: 7pt;padding-left: 107pt;text-indent: 0pt;line-height: 165%;text-align: left;">Hardcopy Sends the contents of the window to a printer or to a flle Move Allows the wi ndow to be moved to a new spot on the screen Shape Repositions and/or reshapes the window</p><p style="padding-bottom: 2pt;padding-left: 179pt;text-indent: -72pt;text-align: left;">Shrink Reduces the window to a small black rectangle called an icon, or, if appropriate, to the shape for that window type (see Figure 6-6).</p><p style="padding-left: 271pt;text-indent: 0pt;text-align: left;"><span><img width="87" height="95" alt="image" src="Image_048.gif"/></span></p><p style="text-indent: 0pt;text-align: left;"><br/></p><p style="padding-left: 111pt;text-indent: 0pt;text-align: center;">Figure 6-6  Example Icon</p><p style="text-indent: 0pt;text-align: left;"><br/></p><p style="padding-left: 178pt;text-indent: -71pt;text-align: justify;">Expand Changes an icon back to its original window. Position the mouse cursor on the icon, depress the right button, and select Expand. Or, just button the icon with the middle mouse button.</p><p style="text-indent: 0pt;text-align: left;"><br/></p><p style="padding-left: 107pt;text-indent: 0pt;text-align: left;">These right-button default window menu selections are available in most windows, including the Executive Window. When the right button has other functions in a</p><p style="padding-left: 107pt;text-indent: 0pt;text-align: left;">window (as in an editor window), the right button default window menu should be accessible by pressing the Right button in the black border at the top of the window.</p><p style="text-indent: 0pt;text-align: left;"><br/></p><h2 style="padding-top: 4pt;padding-left: 35pt;text-indent: 0pt;text-align: left;">Scrollable Windows                                                                                         </h2><p style="text-indent: 0pt;text-align: left;"><br/></p><p style="padding-top: 4pt;padding-left: 107pt;text-indent: 0pt;text-align: left;">Some windows in Medley are &quot;scrollable&quot;. This means that you can move the contents of the window up and down, or side to side, to see anything that doesn’t fit in the</p><p style="padding-left: 107pt;text-indent: 0pt;text-align: left;">window.</p><p style="text-indent: 0pt;text-align: left;"><br/></p><p style="padding-left: 107pt;text-indent: 0pt;text-align: left;">Point the mouse cursor to the left or bottom border of a window. If the window is scrollable, a &quot;scroll bar&quot; will appear. The mouse cursor will change to a double headed arrow. (See Figure 6-7.)</p><p style="text-indent: 0pt;text-align: left;"><br/></p><p style="padding-left: 224pt;text-indent: 0pt;text-align: left;"><span><img width="169" height="196" alt="image" src="Image_049.gif"/></span></p><p style="text-indent: 0pt;text-align: left;"><br/></p><p style="padding-left: 111pt;text-indent: 0pt;text-align: center;">Figure 6-7. Scroll Bar of Scrollable  Window</p><p style="text-indent: 0pt;text-align: left;"><br/></p><p style="padding-top: 7pt;padding-left: 107pt;text-indent: 0pt;text-align: left;">The scroll bar represents the full contents of the window. The example scroll bar is completely white because the window has nothing in it When a part of the scroll bar is shaded, the amount shaded represents the amount of the window’s contents currently</p><p style="padding-left: 107pt;text-indent: 0pt;text-align: left;">shown. If everything is showing, the scroll bar will be fully shaded. (See Figure 6-8.)</p><p style="padding-left: 107pt;text-indent: 0pt;text-align: left;">The position of the shading is also important. It represents the relationship of the</p><p style="padding-left: 107pt;text-indent: 0pt;text-align: left;">section currently diplayed to the the full contents of the window. For example, if the shaded section is at the bottom of the scroll bar, you are looking at the end of the file.</p><p style="text-indent: 0pt;text-align: left;"><br/></p><p style="padding-left: 197pt;text-indent: 0pt;text-align: left;"><span><img width="242" height="148" alt="image" src="Image_050.gif"/></span></p><p style="text-indent: 0pt;text-align: left;"><br/></p><p style="padding-left: 111pt;text-indent: 0pt;text-align: center;">Figure 6-8 Top of  File When Shading at  Top of Scroll Bar</p><p style="text-indent: 0pt;text-align: left;"><br/></p><p style="padding-left: 107pt;text-indent: 0pt;text-align: left;">When the scroll bar is visible, you can control the section of the window’s contents displayed:</p><p style="text-indent: 0pt;text-align: left;"><br/></p><p style="padding-left: 119pt;text-indent: -11pt;text-align: left;">• To move the contents higher in the window (scroll the contents up in the window), press the leff button of the mouse, the mouse cursor changes to look like this:</p><p style="text-indent: 0pt;text-align: left;"><br/></p><p style="padding-left: 306pt;text-indent: 0pt;text-align: left;"><span><img width="12" height="21" alt="image" src="Image_051.gif"/></span></p><p style="text-indent: 0pt;text-align: left;"><br/></p><p style="padding-left: 111pt;text-indent: 0pt;text-align: center;">Figure 6-9. Upward Scrolling Cursor</p><p style="text-indent: 0pt;text-align: left;"><br/></p><p style="text-indent: 0pt;text-align: left;"><br/></p><p style="padding-left: 119pt;text-indent: 0pt;text-align: left;">The contents of the window will scroll up, making the line thit the cursor is beside the topmost line in the window.</p><p style="text-indent: 0pt;text-align: left;"><br/></p><p style="padding-left: 119pt;text-indent: -11pt;text-align: left;">• To move the contonts lower in the window (scroll the contents &quot;down&quot; in the window), press the right button of the mouse, and the mouse cursor changes to look like this:</p><p style="text-indent: 0pt;text-align: left;"><br/></p><p style="padding-left: 306pt;text-indent: 0pt;text-align: left;"><span><img width="12" height="21" alt="image" src="Image_052.gif"/></span></p><p style="text-indent: 0pt;text-align: left;"><br/></p><p style="padding-left: 217pt;text-indent: 0pt;text-align: left;">Flgure 6-10. Downward Scrolling Cursor</p><p style="text-indent: 0pt;text-align: left;"><br/></p><p style="padding-left: 119pt;text-indent: 0pt;text-align: left;">The contents of the window scroll down, moving the line that is the topmost line in the window to beside the curtor.</p><p style="padding-top: 7pt;padding-left: 119pt;text-indent: -11pt;text-align: left;">• To show a specific section of the window’s contents, remember that the scroll bar represents the full contents of the window. Move the mouse cursor to the relative</p><p style="padding-left: 119pt;text-indent: 0pt;text-align: left;">position of the section you want to see (e.g., to the top of the scroll bar if you want to see the top of the window’s contents). Press the middle button of the mouse. The mouse cursor will look like this:</p><p style="text-indent: 0pt;text-align: left;"><br/></p><p style="padding-left: 303pt;text-indent: 0pt;text-align: left;"><span><img width="17" height="17" alt="image" src="Image_053.gif"/></span></p><p style="text-indent: 0pt;text-align: left;"><br/></p><p style="padding-left: 213pt;text-indent: 0pt;text-align: left;">Figure 6-11 Proportional Scrolling Cursor</p><p style="text-indent: 0pt;text-align: left;"><br/></p><p style="padding-left: 119pt;text-indent: 0pt;text-align: left;">When you release the middle mouse button, the window’s contents at that relative position will be displayed.</p><p style="padding-top: 7pt;padding-left: 107pt;text-indent: 0pt;text-align: left;">The position of the mouse in the scroll bar defines how much of the window will be scrolled. If it is near the top, then only a little will be scrolled. If it is near the bottom, most of the window will be scrolled.</p><p style="text-indent: 0pt;text-align: left;"><br/></p><h2 style="padding-left: 35pt;text-indent: 0pt;text-align: left;">Other Window Functions                                                                                 </h2><p style="text-indent: 0pt;text-align: left;"><br/></p><h4 style="padding-top: 4pt;padding-left: 71pt;text-indent: 0pt;text-align: left;">PROMPTPRlNT</h4><p style="padding-top: 8pt;padding-left: 107pt;text-indent: 0pt;text-align: left;">Prints an expression to the black prompt window.</p><p style="text-indent: 0pt;text-align: left;"><br/></p><p style="padding-left: 107pt;text-indent: 0pt;text-align: left;">For example, type</p><p style="text-indent: 0pt;text-align: left;"><br/></p><p class="s9" style="padding-left: 107pt;text-indent: 0pt;text-align: left;">(PROMPTPRINT &quot;THIS WILL BE PRINTED IN THE PROMPT WINDOW&quot;)</p><p style="text-indent: 0pt;text-align: left;"><br/></p><p style="padding-left: 107pt;text-indent: 0pt;text-align: left;">The message will appear in the prompt window. (See Figure 6-12.)</p><p style="text-indent: 0pt;text-align: left;"><br/></p><p style="padding-left: 199pt;text-indent: 0pt;text-align: left;"><span><img width="299" height="101" alt="image" src="Image_054.gif"/></span></p><p style="text-indent: 0pt;text-align: left;"><br/></p><p style="padding-left: 170pt;text-indent: 0pt;text-align: left;"><span><img width="376" height="101" alt="image" src="Image_055.gif"/></span></p><p style="text-indent: 0pt;text-align: left;"><br/></p><p style="padding-top: 4pt;padding-left: 241pt;text-indent: 0pt;text-align: left;">Figure 6-12 <span class="s3">PROMPTPRINT</span>ing</p><p style="text-indent: 0pt;text-align: left;"><br/></p><h4 style="padding-left: 71pt;text-indent: 0pt;text-align: left;">WHlCHW</h4><p style="padding-top: 8pt;padding-left: 107pt;text-indent: 0pt;text-align: left;">Returns as a value the name of the window that the mouse cursor IS in.</p><p style="text-indent: 0pt;text-align: left;"><br/></p><p class="s3" style="padding-left: 107pt;text-indent: 0pt;text-align: left;">(WHICHW) <span class="p">can be used as an argument to any function expecting a window, or to</span></p><p style="padding-left: 107pt;text-indent: 0pt;text-align: left;">reclaim a window that has no name (that is not attached to some particular part of the program.).</p><p class="nav">&nbsp;&nbsp;</p><p class="nav">&nbsp;</p><p class="nav"><a href="part8.htm">&lt; Previous</a><span> | </span><a href="../Medley-Primer.html">Contents</a><span> | </span><a href="part10.htm">Next &gt;</a></p><p class="nav">&nbsp;&nbsp;</p></body></html>
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diff --git a/docs/primer/20-FREE-MENUS.TEDIT b/docs/primer/20-FREE-MENUS.TEDIT
deleted file mode 100644
index 8f98a42d..00000000
--- a/docs/primer/20-FREE-MENUS.TEDIT
+++ /dev/null
@@ -1,48 +0,0 @@
-1

Medley for the Novice, Release 2.0
1

Medley for the Novice, Release 2.0
 20.  FREE MENUS
1

 20.  FREE MENUS
1


"20"20.  FREE MENUS
6


Free Menu(FREE% MENU NIL Free% Menu NIL NIL 1) is a library package that is even more flexible than the regular menu package. It allows you to create menus with different types of items in them, and formats them as you require. Free menus are particularly useful when you want a "fill in the form" type interaction with the user.
Each menu item is described with a list of properties and values. The following example will give you an idea of the structure of the description list, and some of your options. The most commonly used properties, and each type of menu item will be described in the Parts of a Free Menu Item and Types of Free Menu Items section below.
Free Menu Example 
1

Free menus can be created(FREE% MENU NIL Free% Menu NIL NIL 1 SUBNAME CREATING SUBTEXT creating) and formatted(FREE% MENU NIL Free% Menu NIL NIL 1 SUBNAME FORMATTING SUBTEXT formatting) automatically! It is done with the function FM.FORMATMENU(FM.FORMATMENU (Function) NIL NIL NIL 1).  This function takes one argument, a description of the menu. The description is a list of lists; each internal list describes one row of the free menu. A free menu row can have more than one item in it, so there are really lists of lists of lists! It really isn't hard, though, as you can see from the following example:
(SETQ ExampleMenu
	(FM.FORMATMENU
		'(((TYPE TITLE LABEL TitlesDoNothing)
		    TYPE 3STATE LABEL Example3State))
		  ((TYPE EDITSTART LABEL PressToStartEditing
			               ITEMS (EDITEM))
		   (TYPE EDIT ID EDITEM LABEL ""))
		(WINDOWPROPS TITLE "Example Does Nothing"))))
The first row has two items in it: one is a TITLE, and the second is a 3STATE item. The second row also has two items. The second, the EDIT item, is invisible, because its label is an empty string. The caret will appear for editing, however, if the EDITSTART item is chosen. Windowprops can appear as part of the description of the menu, because a menu is, affer all, just a special window. You can specify not only the title with WINDOWPROPS, but also the position of the free menu, using the "left" and "bottom" properties, and the width of the border in pixels, with the "border" property. Evaluating this expression will return a window. You can see the menu by using the function OPENW(OPENW (Function) NIL NIL NIL 1).  The following example illustrates this:


Figure 20.1. Example Free Menu

The next example shows you what the menu looks like after the EDITSTART item, PressToStartEditing, has been chosen.


Figure 20.2. Free menu after EDITSTART Item Chosen
The following example shows the menu with the 3STATE item in its T state, with the item highlighted. (In the previous bitmaps, it was in its neutral state.)
.

Figure 20.3. Free menu with 3STATE Item in its T State
Finally, Figure 20.4 shows the 3STATE item in its NIL state, with a diagonal line through the item


Figure 20.4 Free menu with the 3STATE item in its NIL State
If you would like to specify the layout yourself, you can do that too. See the Lisp Library Packages Manual for more information.

Parts of a Free Menu Item
1

There are eight different types of items that you can use in a free menu(FREE% MENU NIL Free% Menu NIL NIL 2 SUBNAME PROPERTIES SUBTEXT properties). No matter what type, the menu item is easily described by a list of properties, and values. Some of the properties you will use most often are listed below:

LABEL (FREE% MENU NIL Free% Menu NIL NIL 2 SUBNAME PROPERTIES SUBTEXT properties SUBSUBNAME LABEL SUBSUBTEXT LABEL)	Required for every type of menu item. It is the atom, string, or bitmap that appears as a menu selection.
TYPE(FREE% MENU NIL Free% Menu NIL NIL 2 SUBNAME PROPERTIES SUBTEXT properties SUBSUBNAME TYPE SUBSUBTEXT TYPE) 	One of eight types of menu items. Each of these are described in the section below.
MESSAGE(FREE% MENU NIL Free% Menu NIL NIL 2 SUBNAME PROPERTIES SUBTEXT properties SUBSUBNAME MESSAGE SUBSUBTEXT MESSAGE) 	The message that appears in the prompt window if a mouse button is held down over the item.
ID(FREE% MENU NIL Free% Menu NIL NIL 2 SUBNAME PROPERTIES SUBTEXT properties SUBSUBNAME ID SUBSUBTEXT ID) 	An item's unique identifier. An ID is needed for certain types of menu items.
ITEMS(FREE% MENU NIL Free% Menu NIL NIL 2 SUBNAME PROPERTIES SUBTEXT properties SUBSUBNAME ITEMS SUBSUBTEXT ITEMS) 	Used to list a series of choices for an NCHOOSE item, and to list the ID's of the editable items for an EDITSTART item.
SELECTEDFN(FREE% MENU NIL Free% Menu NIL NIL 2 SUBNAME PROPERTIES SUBTEXT properties SUBSUBNAME SELECTEDFN)	The name of the function to be called if the item is chosen.

Types of Free Menu(FREE% MENU NIL Free% Menu NIL NIL 2 SUBNAME TYPES SUBTEXT types) Items
1

Each type of menu item is described in the following list, including an example description list for each one.

MOMENTARY(FREE% MENU NIL Free% Menu NIL NIL 2 SUBNAME TYPES SUBTEXT types SUBSUBNAME MOMENTARY SUBSUBTEXT MOMENTARY) 	This is the familiar sort of menu item. When it is selected, the function stored with it is called. A description for the function that creates and formats the menu looks like this:
(TYPE MOMENTARY
	LABEL Blink-N-Ring
	MESSAGE "Blinks the screen and rings bells"
	SELECTEDFN RINGBELLS)
TOGGLE(FREE% MENU NIL Free% Menu NIL NIL 2 SUBNAME TYPES SUBTEXT types SUBSUBNAME TOGGLE SUBSUBTEXT TOGGLE)	This menu item has two states, T and NIL. The default state is NIL, but choosing the item toggles its state. The following is an example description list, without code for the SELECTEDFN function, for this type of item:
(TYPE TOGGLE
	LABEL DwimDisable
	SELECTEDFN ChangeDwimState)
3STATE(FREE% MENU NIL Free% Menu NIL NIL 3 SUBNAME TYPES SUBTEXT types SUBSUBNAME 3STATE SUBSUBTEXT 3STATE) 	This type of menu item has three states, NEUTRAL, T, and NIL. NEUTRAL is the default state. T is shown by highlighting the item, and NIL is shown with diagonal lines. The following is an example description list, without code for the SELECTEDFN function, for this type of item:
(TYPE 3STATE
	LABEL CorrectProgramAllOrNoSpelling
	SELECTEDFN ToggleSpellingCorrection)
TITLE(FREE% MENU NIL Free% Menu NIL NIL 3 SUBNAME TYPES SUBTEXT types SUBSUBNAME TITLE SUBSUBTEXT TITLE) 	This menu item appears on the menu as dummy text. It does nothing when chosen. An example of its description:
	(TYPE TITLE LABEL "Choices:")
NWAY(FREE% MENU NIL Free% Menu NIL NIL 3 SUBNAME TYPES SUBTEXT types SUBSUBNAME NWAY SUBSUBTEXT NWAY) 	A group of items, nnly one of which can be chosen at a time. The items in the NWAY group should all have an ID field, and the ID's should be the same. For example, to set up a menu that would allow the user to choose between Helvetica, Gacha, Modern, and Classic fonts, the descriptions might look like this (once again, without the code for the SELECTEDFN):
(TYPE NWAY ID FONTCHOICE
	LABEL Helvetica
	SELECTEDFN ChangeFont)
(TYPE NWAY ID FONTCHOICE
	LABEL Gacha
	SELECTEDFN ChangeFont)
(TYPE NWAY ID FONTCHOICE)
	LABEL Modern
	SELECTEDFN ChangeFont)
(TYPE NWAY ID FONTCHOICE
	LABEL Classic
	SELECTEDFN Changefont)

NCHOOSE(FREE% MENU NIL Free% Menu NIL NIL 3 SUBNAME TYPES SUBTEXT types SUBSUBNAME NCHOOSE SUBSUBTEXT NCHOOSE)	This type of menu item is like NWAY except that the choices are given to the user in a submenu. The list to specify an NCHOOSE menu item that is analogous to the NWAY item above might look like this:
(TYPE NCHOOSE
	LABEL FontChoices
	ITEMS Helvetica Gacha Modern Classic)
	SELECTDFN Changefont)
EDITSTART (FREE% MENU NIL Free% Menu NIL NIL 3 SUBNAME TYPES SUBTEXT types SUBSUBNAME EDITSTART SUBSUBTEXT EDITSTART)	When this type of menu itein is chosen, it activates another type of item, an EDIT item. The EDIT item or items associated with an EDITSTART item have their lD's listed on the EDITSTART's ITEMS property. An example description list is:
	(TYPE EDITSTART LABEL "Function to add?" ITEMS (Fn))
EDIT(FREE% MENU NIL Free% Menu NIL NIL 3 SUBNAME TYPES SUBTEXT types SUBSUBNAME EDIT SUBSUBTEXT EDIT) 	This type of menu item can actually be edited by you. It is often associated with an EDITSTART item (see above), but the caret that prompts for input will also appear if the item itself is chosen. An EDIT item follows the same editing conventions as editing in  Executive Window:
	Add characters by typing them at the caret.
	Move the caret by pointing the mouse at the new position, and clicking the left button.
	Delete characters from the caret to the mouse by pressing the right button of the mouse. Delete a character behind the caret by pressing the backspace key.
	Stop editing by typing a carriage return, a Control-X, or by choosing another item from the menu.
	An example description list for this type of item is:
	(TYPE EDIT ID Fn LABEL **)

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diff --git a/docs/primer/21-GRAPHER.TEDIT b/docs/primer/21-GRAPHER.TEDIT
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diff --git a/docs/primer/23-INTERACTIONS.TEDIT b/docs/primer/23-INTERACTIONS.TEDIT
deleted file mode 100644
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--- a/docs/primer/23-INTERACTIONS.TEDIT
+++ /dev/null
@@ -1,28 +0,0 @@
-1

Medley for the Novice, Release 2.0
1

Medley for the Novice, Release 2.0
 23.  SIMPLE INTERACTIONS WITH CURSOR, BITMAP, AND WINDOW
1

 23.  SIMPLE INTERACTIONS WITH CURSOR, BITMAP, AND WINDOW
1


"23"23.  SIMPLE INTERACTIONS WITH THE CURSOR, A BITMAP, AND A WINDOW
6


The purpose of this chapter is to show you how to build a moderately tricky interactive interface(INTERFACE NIL Interface NIL NIL NIL SUBNAME BUILDING SUBTEXT building) with the various Medley display facilities. In particular how to move a large bitmap (larger than 16 x 16 pixels) around inside a window. To do this, you will change the CURSORINFN and CURSOROUTFN properties of the window. If you would also like to then set the bitmap in place in the window, you must reset the BUTTONEVENTFN. This chapter explains how to create the mobile bitmap.
GETMOUSESTATE Example Function
1

One function that you will use to "trace the cursor" (have a bitmap follow the cursor around in a window) is GETMOUSESTATE(GETMOUSESTATE (Function) NIL NIL NIL NIL). This function finds the current state of the. mouse, and resets global system variables, such as LASTMOUSEX(LASTMOUSEX (Variable) NIL NIL NIL NIL) and LASTMOUSEY(LASTMOUSEY (Variable) NIL NIL NIL NIL).
As an example of how this function works, create a window by typing
(SETQ EXAMPLE.WINDOW (CREATEW))
into the Executive Window, and sweeping out a window. Now, type in the function
(DEFINEQ (PRINTCOORDS (W)
     (PROMPTPRINT "(" LASTMOUSEX ", "LASTMOUSEY ")")
     (BLOCK)
     (GETMOUSESTATE)))

This function calls GETMOUSESTATE and then prints the new values of LASTMOUSEX and LASTMOUSEY in the promptwindow. To use it, type
(WINDOWPROP EXAMPLE.WINDOW 'CURSORMOVEDFN 'PRINTCOORDS)
The window property CURSORMOVEDFN(CURSORMOVEDFN (Property) NIL NIL NIL NIL), used in this example, will evaluate the function PRINTCOORDS(PRINTCOORDS (Function) NIL NIL NIL NIL) each time the cursor is moved when it is inside the window. The position coordinates of the mouse cursor will appear in the prompt window. (See Figure 23.1.)

Figure 23.1. Current Position Coordinates of Mouse Cursor  in Prompt Window

Advising GETMOUSESTATE
1

For the bitmap to follow the moving mouse cursor, the function GETMOUSESTATE is advised. When you advise a function, you can add new commands to the function without knowing how it is actually implemented. The syntax for advise is
(ADVISE fn when where what)
fn is the name of the function to be augmented. when and where are optional arguments. when specifies whether the change should be made before, after, or around the body of the function. The values expected are BEFORE, AFTER, or AROUND.
what specifies the additional code.
In the example, the additional code, what, moves the bitmap to the position of the mouse cursor. The function GETNOUSESTATE will be ADVISEd when the mouse moves into the window. This will cause the bitmap to follow the mouse cursor. ADVISE will be undone when the mouse leaves the window or when a mouse button is pushed. The ADVISEing will be done and undone by changing the CURSORINFN, CURSOROUTFN, and BUTTONEVENTFN for the window.
Changing the Cursor
1


One last part of the example, to give the impression that a bitmap is dragged around a window, the original cursor(CURSOR NIL Cursor NIL NIL NIL SUBNAME CHANGING SUBTEXT changing) should disappear. Try typing:
(CURSOR (CURSORCREATE (BITMAPCREATE 1 l) 1 1]
into the Executive Window. This causes the original cursor to disappear. It reappears when you type
(CURSOR T)
When the cursor is invisible, and the bitmap moves as the cursor moves, the illusion is given that the bitmap is dragged around the window.
Functions for Tracing the Cursor
1


To actually have a bitmap trace (follow) the cursor(CURSOR NIL Cursor NIL NIL NIL SUBNAME TRACING SUBTEXT tracing), the environment must be set up so that when the cursor enters the tracing region the trace is turned on, and when the cursor leaves the tracing region the trace is turned off. The function Establish/Trace/Data will do this. Type it in as it appears (include comments that will help you remember what the function does).

(DEFINEQ (Establish/Trace/Data
[LAMBDA (wnd tracebitmap cursor/rightoffset cursor/heightoffset GCGAGP)

(* * This function is called to establish the data to trace
the desired bitmap. "wnd" is the window in which the tracing
is to take place, "tracebitmap" is the tracing bitmap,
"cursor/rightoffset" and "cursor/heightoffset" are integers
which detemine the hotspot of the tracing bitmap.
As "cursor/heightoffset and "cursor/rightoffset" increase
the cursor hotspot moves up and to the right.
If GCGAGP is non-NIL, GCGAG will be disabled.)

(PROG NIL

(if (OR (NULL wnd)
        (NULL tracebitmap))
    then (PLAYTUNE (LIST (CONS 1000 4000)))
         (RETURN))
(if GCGAGP
    then (GCGAG))

  (* * Create a blank cursor.)

(SETQ *BLANKCURSOR*(BITMAPCREATE 16 16))
(SETQ *BLANKTRACECURSOR*(CURSORCREATE *BLANKCURSOR*))

  (* * Set the CURSOR IN and OUT FNS for wnd to the
  following:)

(WINDOWPROP wnd (QUOTE CURSORINFN)
            (FUNCTION SETUP/TRACE))
(WINDOWPROP wnd (QUOTE CURSOROUTFN)
            (FUNCTION UNTRACE/CURSOR))

  (* * To allow the bitmap to be set down in the window by
   pressing a mouse button, include this line.
   Otherwise, it is not needed)

(WINDOWPROP wnd (QUOTE BUTTONEVENTFN)
            (FUNCTION PLACE/BITMAP/IN/WINDOW))
(WINDOWPROP wnd (QUOTE CURSOROUTFN)

  (* * Set up Global Variables for the tracing operation)

(SETQ *TRACEBITMAP* tracebitmap
(SETQ *RIGHTTRACE/OFFSET*(OR cursor/rightoffset 0))
(SETQ *HEIGHTTRACE/OFFSET*(OR cxursor heightoffset 0))
(SETQ *OLDBITMAPPOSITION*(BITMAPCREATE (BITMAPWIDTH 
   tracebitmap)
						   (BITMAPHEIGHT 
   tracebitmap)))
(SETQ *TRACEWINDOW* wnd]))


When the function Establish/Trace/Data is called, the functions SETUP/TRACE(SETUP/TRACE (Function) NIL NIL NIL NIL) and UNTRACE/CURSOR(UNTRACE/CURSOR (Function) NIL NIL NIL NIL) will be installed as the values of the window's WlNDOWPROPS, and will be used to turn the trace on and off. Those functions should be typed in, then:

(DEFINEQ (SETUP/TRACE
[LAMBDA (wnd)

(* * This function is wnd's CURSORINFN.
It simply resets the last trace position and the current
tracing region.  It also readvises GETMOUSESTATE to perform the trace function after each call.)

    (if *TRACEBITMAP*
	then (SETQ *LAST-TRACE-XPOS* -2000)
		(SETQ *LAST-TRACE-YPOS* -2000)
		(SETQ *WNDREGION* (WINDOWPROP wnd (QUOTE REGION)))
		(WINDOWPROP wnd (QUOTE TRACING)
			T)

	(* * make the cursor disappear)

(CURSOR *BLANKTRACECURSOR*)
(ADVISE (QUOTE GETMOUSESTATE)
	(QUOTE AFTER)
	NIL
	(QUOTE (TRACE/CURSOR]))

(DEFINEQ (UNTRACE/CURSOR
 [LAMBDA (wnd)

	(* * This function is wnd's CURSOROUTFN. The function first 
	checks if the cursor is currently being traced;  if so, it 
	replaces the tracing bitmap with what is under it and then 
	turns tracing off by unadvising GETMOUSESTATE and setting the 
	TRACING window property of *TRACEWINDOW* to NIL.)

 (if (WINDOWPROP *TRACEWINDOW*(QUOTE TRACING))
	then (BITBLT *OLDBITMAPPOSITION* 0 0 (SCREENBITMAP)
			(IPLUS (CAR *WNDREGION*)*LAST-TRACE-XPOS*)
			(IPLUS (CADR *WNDREGION*)*LAST-TRACE-YPOS*))
		(WINDOWPROP *TRACEWINDOW*(QUOTE TRACING)
							NIL))

 	(* * replace the original cursor shape)

 (CURSOR T)

 	(* * unadvise GETMOUSESTATE)

 (UNADVISE (QUOTE GETMOUSESTATE]))

The function SETUP/TRACE has a helper function that you must also type in. It is TRACE/CURSOR:
(DEFINEQ (TRACE/CURSOR
 [LAMBDA NIL

	(* * This function does the actual BITBLTing of the tracing 
	bitmap.  This function is called after a GETMOUSESTATE, while 
	tracing.)
 (PROG ((xpos (IDIFFERENCE (LASTMOUSEX *TRACEWINDOW*) 	
			*RIGHTTRACE/OFFSET*))
	  (ypos (IDIFFERENCE (LASTMOUSEY *TRACEWINDOW*) 	
			*HEIGHTTRACE/OFFSET*))
	(* * If there is an error in the function, press the right 
	button to unadvise the function.  This will keep the machine 
	from locking up.)
	(if (LASTMOUSESTATE RIGHT)
		then (UNADVISE (QUOTE GETMOUSESTATE)))
	(if (AND (NEQ xpos *LAST-TRACE-XPOS*)
			 (NEQ ypos *LAST-TRACE-YPOS*))
		then
	(* * Restore what was under the old position of the trace 
	bitmap)
		(BITBLT *OLDBITMAPPOSITION* 0 0 (SCREENBITMAP)
			(IPLUS (CAR *WNDREGION*)*LAST-TRACE-XPOS*)
			(IPLUS (CADR *WNDREGION*)*LAST-TRACE-YPOS*))
	(* * Save what will be under the position of the new trace 
	bitmap)
		(BITBLT (SCREENBITMAP)
			(IPLUS (CAR *WNDREGION*)
				xpos)
			(IPLUS (CADR *WNDREGION*)
				ypos)*OLDBITMAPPOSITION* 0 0)
	(* * BITBLT the trace bitmap onto the new position of the 
	mouse)
		(BITBLT *TRACEBITMAP* 0 0 (SCREENBITMAP)
			(IPLUS (CAR *WNDREGION*)
				xpos)
			(IPLUS (CADR *WNDREGION*)
				ypos)
			NIL NIL (QUOTE INPUT)
			(QUOTE PAINT))
	(* * Save the current position as the last trace position.)
		(SETQ *LAST-TRACE-XPOS* xpos)
		(SETQ *LAST-TRACE-YPOS* ypos]))

The helper function for UNTRACE/CURSOR, called UNDO/TRACE/DATA, must also be added to the environment:

(DEFINEQ (UNDO/TRACE/DATA
[LAMBDA NIL

     (* * The purpose of this function is to turn tracing off 	
	and to free up the global variables used to trace the 	
	bitmap so that they can be garbage collected.)

	(* * Check if the cursor is currently being traced.
	It so, turn it off.)

(UNTRACE/CURSOR)
(WINDOWPROP *TRACEWINDOW*(QUOTE CURSORINFN)
            NIL)
(WINDOWPROP *TRACEWINDOW*(QUOTE CURSOROUTFN)
            NIL)
(SETQ *TRACEBITMAP* NIL)
(SETQ *RIGHTTRACE/OFFSET* NIL)
(SETQ *HEIGHTTRACE/OFFSET* NIL)
(SETQ *OLDBITMAPPOSITION* NIL)
(SETQ *TRACEWINDOW* NIL)

     (* * Turn GCGAG on)

(GCGAG T]))

Finally, if you included the WlNDOWPROP to allow the user to place the bitmap in the window by pressing a mouse button, you must also type this function:

(DEFINEQ (PLACE/BITMAP/IN/WINDOW
[LAMBDA (wnd)

(UNADVISE (GETMOUSESTATE))
(BITBLT *TRACEBITMAP* 0 0 (SCREENBITMAP)
     (IPLUS (CAR *WNDREGION*)
          xpos)
     (IPLUS (CADR *WNDREGION*)
          ypos)
     NIL NIL (QUOTE INPUT)
     (QUOTE PAINT]
That's all the functions!

Running the Functions
1


To run the functions you just typed in, first set a variable to a window by typing something like
(SETQ EXAMPLE.WINDOW (CREATEW))
into the Executive Window, and sweeping out a new window. Now, set a variable to a bitmap, by typing, perhaps,
(SETQ EXAMPLE.BTM (EDITBM))
Type
(Estab1ish/Trace/Data EXAMPLE.WINDOW EXAMPLE.BTM))
When you move the cursor into the window, the cursor will drag the bitmap.
(If you want to be able to make menu selections while tracing the cursor(CURSOR NIL Cursor NIL NIL NIL SUBNAME SETTING% THE% HOTSPOT SUBTEXT setting% the% hotspot), make sure that the hotspot of the cursor is set to the extreme right of the bitmap. Otherwise, the menu will be destroyed by the BITBLTs of the trace functions.)
To stop tracing, do one of the following:
ÿÿïfÿ	Move the mouse cursor out of the window
ÿÿïfÿ 	Press the right mouse button
ÿÿïfÿ	Call the function UNTRACE/CURSOR

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diff --git a/docs/primer/DRAFT.TEDIT b/docs/primer/DRAFT.TEDIT
deleted file mode 100644
index f30e8fef..00000000
--- a/docs/primer/DRAFT.TEDIT
+++ /dev/null
@@ -1,4 +0,0 @@
-Primer from Scan


TABLEOFCONTENTS

~)19 ~`~

1. A Brief Glossary t 1.1
2. The Mouse and the Keyboard / 2.1
2.1. The Mouse 2.1
2.1.1. 2and3ButtonMice 2.1
2.2. _ The _ Keyhoard _ 2.2
2.2.1. _ The _ 1186 _ Keyhoard _ 2.2
2.2.2. _ The _ 1108 _ Keyhoard _ 2.2

3. Turning On Your Lisp Machine / 3.1
3.1. _ Turningonthello8 _ 3.1
3.2. _ Turning on _ the1186 _ 3.2
3.3. _ Loading _ lntertis~D from the _ Hard _ Disk _ 3.3
3.4. _ AfterBooting _ Lisp _ 3.5
3.5. _ Restarting _ Lisp After Logging _ Out _ 3.5
4. If You Have a Fileserver / 4.1
4.1. _ Turning on your 1108 _ 4.1
4.2. _ Turningonyourll86 _ 4.1
4.3. Location of Files 4.2
4.4. The Timeserver 4.2
5. Logging Out And Turning the Machine Off 51
5.1. _ Logging Out _ 5.1
5.2. _ Turning _ The _ MachineOff _ 5.2
6. Typing Shortcuts 6.1
6.1. _ If you _ makea _ Mistake _ 6.3
7. Using Menus 7.1
7.1. _ Making _ a _ Selection from _ a _ Menu _ 7.2
7.2. _ Explanations _ of _ Menu _ Items _ 7.2
7.3. Submenus 7.3
8. How to use Files 8.1
8.1. _ Types of Files _ 8.1

TA8~ OF CONTENtt To'.,
1

- - - -

. - - - - . - - , -

TABLE OF CONTENtr

8.2. _ Directories _ 8.1
8.3. _ Directory Options _ 8.2
8.4. _ Subfile _ Directories _ 8.3
8.5. _ To See What Filri Are _ Loaded _ 8.3
8.6. _ Simple Commands for Manipulating _ Filu _ 8.3
\

8.7. _ to a _ 8.4
- `.~--y Connecting _ Directory

\ s 8.8. _ File Vettion _ Numbers _ 8.4

9. FileBrowser 9.1
9.1. _ Calling the _ FileSrowser _ 9.1
9.2. FileBrowserCommands 9.3
10. ffose Wondertul Windows! 10.1
10.1. _ Windows _ provided _ by lnterlis~D _ 10.1
10.2. _ Creating a _ window _ 10.2
10.3. _ The Right _ Button DefaultWindow _ Menu _ 10.2
10.4. _ An _ explanation of each _ menu _ item _ 10.3
10.5. _ krollable Windows _ 10.3
10.6. Other Window Functions 10.5
10.6.1. PROMPTPRlNT 10.5

10.6.2. _ WHlCHW _ 10.6
11. Editing and Saving 11.1
11.1. _ Defining _ Functions _ 11.1
11.2. Simple Editing in the 1nterlis~D Executive Window 11.2

YA8~ OF cottnritt
iA.3. _ Wùys to Stop Exùcution from thù Kùyboard, called _ 1ùrùùhlng LIzp5 _ 14.3
t4.4. _ Programming _ Brùaks and Dùbugging Codù _ 14.4
14.5. Break Monu 14.4
14.6. _ Returning to Top Lovùl _ `4.5
15. _ On-Line _ Help _ with _ Interlisp-D: _ HELPSYS and _ DlNFO _ ~ _ 15.1
15.1. _ HelpSys _ 15.1
15.2. Dlnfo 15.1
16. Floppy Disks / 16.1
16.1. _ Buying Floppy Disks _ 16.1
16.2. _ Basic Floppy Disk Information _ 16.1
16.3. _ Care of Floppies _ 16.2
16.4. _ Write Enabling and Write Protecting _ Floppies _ 16.3
16.4.1. _ Write Enabling an _ 1108's _ Floppy _ Disk _ 16.3
16.4.2. _ Write Protecting an _ 1186's Floppy Disk _ 16.3
16.5. _ Inserting _ Floppies _ intothe _ Floppy Drive _ 16.3
16.6. _ Functions for Floppy Disks _ 16.4
16.6.1. _ Formatting Floppies _ 16.4
16.6.2. _ Available Space on a Floppy Disk _ 16.4
16.6.3. _ The Name ofa Floppy Disk _ 16.4
16.6.4. _ FLOPPY.MODE _ 16.5

17. Duplicating Floppy Disks 17.1
17.1. _ Supplies _ 17.1
17.2. _ Preparabon _ 17.1
17.2.1. _ Handling _ Floppy _ Disks _ 17.1
17.2.2. _ Setup _ 17.1
17.3. _ Copying _ Floppy Disks _ 17.2
18. Sysout Files 18.1
18.1. _ Loading SYSOUT Filri _ 18.1
18.1.1. _ Loading a _ SYSOUTfile on the _ 1108 _ 18.1
18.1.2. _ Loading a SYSOuTfileonthe _ 1186 _ 18.2
18.2. _ Making _ Your Own SYSOUT File _ 18.3
19. Using the Epson FX80 Printer ~ 19.1
19.1. _ Initializing the RS232 Port _ 19.1
19.2. _ Power upthe Printer _ 19.1
19.3. _ to Align Top of Page _ 19.1

YA8~ OF CONTENTS TOC.3

TABLE OF CONTEND yl

19.4. _ Fundions To Print Filri and _ Bitmapf _ 19.2
19.4.1. _ RS232.Print _ 19.2
19.4.2. _ FXWSTREAM _ 19.2
19.4.3. _ Printing a Portion of the Screen _ 19.3

20. R5232 File Transfer With a VAX 20.1
20.1. _ Prerequisites _ 20.1
20.2. _ Using Chat to Transfer Filri _ 20.1
21. Ethernet File Transfer 21.1
21.1. _ Prerequisites _ 21.1
21.2. File Transfer 21.1
22. WhatToDolf...

22.1

ù;;23. The Text œditor,TEdit 23.1
23.1. _ Using TEdit _ 23.1

23.2. _ Managing the edit Window _ 23.2
23.3. _ Seleding _ Tert _ 23.3
23.4. _ Deleting, Copying, and _ Moving Text with edit _ 23.4
23.4.1. _ Deleting Text From a File _ 23.4
23.4.2. _ Copying _ Text _ 23.4
23.4.3. _ Moving _ Text _ 23.5
23.5. _ rtdit Menus _ 23.6
23.5.1. _ Finding _ and _ Substituting Text with _ edit _ 23.7
23.5.1.1. _ Finding Text _ 23.7
23.5.1.2. _ Substituting Text _ 23.8
23.5.L _ Text Formatting _ 23.10
23.5.2.1. _ Choosing Fonts _ 23.10
23.5.2.2. _ Paragraph _ Formatting _ 23.11
23.5.3. _ Adding _ Bitmaps and Sketches to your TEdit File _ 23.13
23.5.3.t. _ Adding a _ Bitmap to your TEdit file _ 23.13
23.5.3.2. _ Adding a Sketch to your TEdit file _ 23.14
23.5.4. _ Getting and _ Including _ Filri _ 23.14
23.5.4.1. _ Get _ 23.14
23.5.4.2. _ Include _ 23.14
23.5.5. _ Saving and Printing Files _ 23.15

24. _ Records _ May _ BG _ Your _ Favorite _ Data _ Structure! _ 24.1
2&1. _ Interlisp Record ~imitlves _ 24.1

T~.. rAa~0fC0NTENrt

TABLE OF OoNTENfl

24.2. _ Exomplo _ 24.3
24.3. _ AFùwflps _ 24.4
25. Local Variables - Using LET and PR0G 7 25.1
25.1. _ LET _ 25.1
25.2. _ PfloG _ 25.3
25.3. _ Porillol _ vottus _ S~uential _ Vorioblo _ Binding _ 25.6
25.3.1. _ L~ _ 25.6
25.3.2. _ PROGù _ 25.7

26. lterative statements 26.1
26.1. _ General _ Strudurc and _ Use _ 26.1
26.2. _ Local _ Variables _ 26.2
26.3. _ lteration _ On _ Lists _ 26.3
26.4. _ Parallel _ lteration _ 26.4
26.5. _ Conditional _ lteration _ 26.5
26.6. _ More _ lteration _ 26.6
27. Window and Regions 27.1
27.1. _ Windows _ 27.1
27.1.1. _ CREATEW _ 27.1
27.1.2. _ WlNDOWPROP _ 27.2
27.1.3. _ Getting windows to do things _ 27.3
27.1.3.1. _ BUflONEVENTFN _ 27.4
27.1.4. _ Looking at a _ window's properties _ 27.5
27.2. _ Regions _ 27.5
28. What Are Menus? 281
28.1. _ Displaying _ Menus _ 28.1
28.2. _ Getting _ Menus to DO Stuff _ 28.2
28.2.1. The WHENHELDFH and WHENSELE~DFN fields of a
menu 28.4

28.3. _ Looking _ at a _ menu's fields _ 28.5
29. Bitmaps 29.1
30. Displaystreams 30.1
30.1. _ Drawing _ on a _ Displaystream _ 30.1
30.1.1. _ DliWUNE _ 30.1
30.1.2. _ DliWTO _ 30.2
30.1.3. _ DliWaRCLE _ 30.3

TABS OF CONTENff TOC.5
l

TABS OF CON~Nfl

30.1.3.1. _ FlLLGRCLE _ 30.3
30.2. _ Locating and _ Changing _ Your Position _ in _ a _ Displaystream _ 30.4
30.2.1. _ DSPXP0SlflON _ 30.5
30.2.2. _ DSPYPOSlBON _ 30.5
30.2.3. _ MOVETO _ 30.5

31. Fonts 31.1
31.1. _ WhatmakesupaFONn _ 31.1
31.2. _ Fontdescriptors, and _ FONTCREATE _ 31.2
31.3. _ Display Fonts-Theirfiles, and how to find them _ 31.3
31.4. _ Interpress _ Fonts- Their files, and _ how to find them _ 31.4
31.5. _ Functions for Using Fonts _ 31.4
31.5.1. _ FOHTPROP - _ Looking at Font Properties _ 31.4
31.5.2. _ SffllNGWlDTH _ 31.5
31.5.3. _ DSPFONT- Changing the Font in _ One Window _ 31.6
31.5.4. _ GIo~IlyChanging Fonts _ 31.7
31.5.5. _ Pettonalizing _ Your Font Profile _ 31.7

32. The Inspetror 32.1
32.1. _ Calling the Inspector _ 32.1
32.2. _ Using _ the _ Inspector _ 32.2
32.3. _ Inspector _ Example _ 32.2
33. Masterscope 33.1
33.1. _ The SHOW DATA command and GRAPHER _ 33.2
33.2. Databasefns: Automatic Conrtruction and Upkeep of a Mastettcope
Data~se _ 33.3

34. Where Does All the Time Go? SPY 34.1
34.1. _ How to use Spy with the SAY Window _ 34.1
34.2. _ How to use _ SPY from the _ Lisp Top Level _ 34.2
343. _ Interpreting _ SPY's Results _ 34.2
35. SKETCH 35.1
35.1. _ Starting _ Sketch _ 35.1
35.2. _ Selecting _ Sketch elements _ 35.1
35.3. _ Drawing _ with _ Sketch _ 35.2
35.3.1. _ Simplù Shapes: _ Circles, Ellipsriù and _ Boxes _ 35.3
35.3.1.1. _ Drawing _ Circlri _ 35.3
35.3.1.1 _ Elllpsri _ 35.3

TA.G TAlLE0fC0NFENrt `/`



     ----- Next Message -----

Date: 19 Dec 91 14:18 PST
From: sybalsky:PARC:Xerox
To: sybalsky
Message-ID: <<91Dec19.141853pst.43009@origami.parc.xerox.com>.?::>

<----RFC822 headers-----
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Received: by origami.parc.xerox.com id <43009>; Thu, 19 Dec 1991 14:18:53 -0800
From:	John Sybalsky <sybalsky.PARC@xerox.com>
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TABLE OF CONTENff

42. _ Simple _ Interactions _ with _ the _ Cursor, _ a _ Bitm&p, _ and _ & _ Window _ 42.1
42.1. _ An _ Example Function _ Using _ GETHOUSESTATE _ 42.1
42.2. _ Advising _ GETMOUSESTATE _ 42.2
42.3. _ Changing the Cursor _ 42.2
42.4. _ Functions for _ "Tracing the cursor" _ 42.3
42.5. _ Running the Functions _ 42.6
43. Glossary of Global System Variables 43.1
43.1. _ Directories _ 43.1
43.2. _ Flags _ 43.2
43.3. _ Hirtory _ Lists _ 43.3
43.4. _ Syrtem _ Menus _ 43.3
43.5. _ Windows _ 43.4
43.6. _ Miscellaneous _ 43.4
44. Other References that will be Useful to You 44.1

TA.G TAaU0FC0NTENff

PREFACE

it wos dawn and the locd told him it was down the road a p;ece,
lefl &t the hst fishing bridge in the counvy right at the apple
tree stump, and onto the d;rt roadjust before the hill. At
m;dnight he knew he was lo$t.
-Anonymous

Welcome to the Interlisp-D programming environment! The
Interlis~D environment truly must be one of the most
sophisticated and powerful tools in use by human beings.
Overall, it is flexible, well thought out, and full of pleasant
surprises: "Wow, here are exactly the set of functions l thought
I'd need to write." Unfortunately, along with the power comes
mind-numbing complexity. The Intedisp Refertnce Manual
describes the functions and some of the tools available in the
Interlisp-D environment. To do this takes three large volumes.
Other volumes are needed to document the library packages and
other newly written tools. Needless to say, it is very difficult to
learn such a huge amount of material when there is no way to
determine where to rtart!

We developed this primer to provide a starting point for new
lnterlis~D usert, to enhanceù your excitement and challenge you
with the potential before you. We assume you know a little
about LISP, most likely received from taking a survey courte in
Artificial Intelligence (Al), and have seen a demonrtration of
how lnterlis~D runs on your 1186 or 1108. We further assume
that your machine is not on a network system with a file server -
though this is addressed, and that you will be working from
floppy disks and the hard disk that is part of the machine. If this
describes your situation, you are ready to sit down in front of
your machine and follow the ste~by-step examples provided in
this primer.

The primer is broken into many small chapters, and these
chapters are organized into five parts. You may want to read
Parts 1 through 3 straight through, since they describe the basics
of using the machine. Each chapter in Sections 4 and 5, however,
can be used to learn a specific skill whenever you are ready to for
it

Part one, "Introduction", includes Chapters 1 and 2. Part two,
"Getting Into/Out of Interlisp", includes Chapters 3 through 5.
Part three, "The lnterlis~D language and Programming
Environment", includes Chapters 6 through IS. These chapters
discuss primary elements in lnterIis~D, and orient you in relation
to those elements. Part four, "Important Other Things to Know
to Work Successfully", includes Chapters 16 through 31. Part
five, "More Language and Environment and Packages", includes
Chapters 32 through 44.

PREFAcE v



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PREFACE

Through out we make reference to the lnterlis~D Reference
Manual by section and page number. The material in the primer
is just an introduction. When you need more depth use the
detailed treatment provided in the manual.

While only you can plot your ultimate destination, you will flnd
this primer indispensable for clearly defining and guiding you to
the first landmarks on your way.

Acknowledgements The early inspiration and model for this primer came from the
Intelligent Tutoring Systems group and the Learning Research
and Development Center at the University of Pittsburgh. We
gratefully acknowledge their pioneering contribution to more
effective artificial intelligence.

This primer was developed by Computer Possibilities, a company
committed to making Al technology available. Primary
development and writing was done by Cynthia Cosic, with
technical writing support provided by Sam Zordich.

At Xerox Artificial Intelligence Systems, John Vittal managed and
directed the project. Substantial assistance was provided by
many members of the AlS staff who provided both editorial and
systems support.

PREFA~ ù1



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1. ABRlEFGLOSSARY

The following definitions will acquaint you with general terms
used throughout this primer. You will probably want to read
through them now, and use this chapter as a reference while you
read through the rest of the primer.

advising An lnterlis~D facility for specifying function modifications
without necessarily knowing how a particular function works or
even what it does. Even system functions can be changed with
advising.

argument An argument is a piece of information given to an lnterlis~D
function so that it can execute successfully. When a function is
explained in the primer, the arguments that it requires will also
be given. Arguments are also called Parametert.

atom The smallest rtrvcture in Lisp; like a variable in other
programming languages, but can also have a property lirt and a
function definition.

Background Menu The menu that appears when the mouse is not in any window
and the right mouse button is pressed. A typical background
menu is shown in Figure I.I.

Loops Icon
FileB'owser

Figuro 1.1. The Menu that appeort when the mouse is not in any window, and
the right mouse button is pressed. Your background menu may have some
different items in it

binding The value of a variable. It could be either a local or a global
variable. See unbound.

bitmap A rectangular array of `ù pixels, `ù each of which is on or off
representing one point in the bitmap image.

BREAK An Interlisp function that causes a function to stop executing,
open a Break window, and allow the user to find out what is
happening while the function is halted.

Break Window A window that opens when an error is encountered while
running your program (i.e., when your program has broken).
There are tools to help you debug your program from this
window. This is explained further in Chapter 14, Page 14.1.
browse To examine a data strvcture by use of a display that allows the
user to "move" around within the data rtructure.
button

A BRIEF GL0SSARY 1.1
1

A BRIEF GLOssAny

(1) (n.) Akeyonamouse.

(2) (v.t.) To depress one of the mouse keys when making a selection.
EAR A function that returns the head or firrt element of a list. See
CDR.

caret The small blinking arrowhead that marks where tert will appear
when it is typed in from the keyboard. An example of the caret
in the lnterIis~D Executive Window is shown in Figure 1.2.

NIL

B6+(PLus 3A

Figurù lJ. Me caret is to the right of the numher 3. When a characters frped
atthe keylsoard. it will ap~ar at the caret

CDR A function that returns the tail (that is, everything but the first
element) ofa list SeeEAR.

CLlSP A mechanism for augmenting the standard Lisp syntax. One such
augmentation included in Interlisp is the iterative rtatement.
SeeSection 13.1.

cr Please press your carriage return key.
datatype

(1) The kind of a datum. In Interlisp, there are many SystemAefine~
datatypes e.g. Floating Point, Integer, Atom, etc.
(2) A datatype can also be user~efined. In this case it is like a record
made up from system types and other user-defined datatypes.
DWlM D~whatùl-mean. Many errors made by Interlisp users could be
corrected without any information about the purpose of the
program or expression in question (e.g. misspellings, certain
kinds of parenthesis errort). The DWlM facility is called
automatically whenever an error occurt in the evaluation of an
Interlisp expression. If DWlM is able to make a correction, the
computation continues as though no error had occurred;
otherwise, the standard error mechanism is invoked.
error Occasionally, while a program is running, an error may occur
which will stop the computation. Interlisp provides ertensive
facilities for detecting and handling error conditions, to enable
the testing, debugging, and revising of impertect programs.
evaluate or EVAL Means to flnd the value of a form. For example, if the variable X
is bound to 5, we get 5 by evaluating X. Evaluation of a Interlisp
function involves evaluating thù arguments and then applying
thùfunction.

file packagù A set of functions and convùntions that facilitato thù
bookkeùping involved with working in i largù systùm consisting
of many sourcù codù files and thùir compiled countùrparts.

Essentially, thù fllù packagù k:ps track of whùrù things arù and

1,

AùR1EFGLos~y
l

A ùRlœF GLoSSARY

whet things hevo chonged. N 4150 kaps trùck of which files hove
been modifiod end n#d to be updetod end recompiled.
form Another wey of seying ~xpre5sion. An Jntorlisp-D ex~on
tbetcen be evaluated.

function A Lisp function is e piece of l;sp code thet executes end returns e
veiue.

history The progremmerùs essistent is l,uilt eround e memory structure
celled the hirtory Iirt. The hirtory functions (e.g. FIX, UNDO,
REDO) ere part of this essirtant. These operations allow you to
conveniently r~work previously specifiecl operations.

History List As you type on the xreen, you will notice a number followecl by
a prompt attow. Each number, and the information on that line,
is seeluentially rtored as the History List Using the History List,
you can easily reexecute lines typed earlier in a worksession. See
Chapter6.

icon A pictorial representation, usually of shrunken window.

lnterlis~D Executive Window This is your main window, where you will run functions and
develop your programs. See Figure 1.3. This is the window that
the caret is in when you turn on your machine and load
lnterlis~D.

NIL

8~#iPRO*PTPRIHT "HELLO" A

Fqurù tJ. m window

inspector An interactive display program for examining and changing the
parts of a data structure. Jnterlisp-D has inspectors for lists and
other data types.

iterative statement (also called i.s.) A statement in Interlisp that repetitively executes
abody of code. (E.g.(forxfromltosdo(PRlNTx))isani.s.)
iterative variable (also called i.v.) Usually, an iterative statement is controlled by
the value that the i.v. takes on. In the iterative statement
example above,
x

is the iterative variable leecause its value is being changed by
each cycle through the loop. All iterative variables are local to
the iterative rtatement where they are defined.

LISP Family of languages invented for "list processing." These
languages have in common a set of basic primitives for creating
and manipulating symbol rtructures. lnterlis~D is an
implementation of the LISP language together with an
environment (set of tools) for programming, an a set of packages
that ertend the functionality of the system.

list A collection of atoms and lists; a list is denoted by surrounding
its contents with a pair of parentheses.

A BRIEF GLOSSARY lJ
1

A BRIEF GLOSSARY

Loading LJSP This is the process of bringing lnterlis~D from floppy disks, hard
disks, or some other secondary rtorage into your main, or
working, memory. You will need to load (i.e., install, and boot)
lnterlis~D if you have not logged off the machine at the end of a
session. The process of loading lnterlis~D is explained in
Chapter3.

Maintenance Panel Codes Should you have a problem with your equipment, these codes
will indicate the status of your processor. On the 1108, these are
the red LED numbett under the floppy drive door. There is a
cover over these numbers. Pull down the cover located
immediately under the floppy door button. The code numbers
are defined for the 1108 in the 1108 Useri Guide, in the MP
Codeschapter.

If there is a problem with the 1186, the mouse curtor will change
from its normal arrow to the code number that describes the
problem. The code numbert are defined for the 1186 in the 1166
User's Guide in the Curtor Codes subsection of the Diagnostics
Chapter.

Marterscope A program analysis tool. When told to analyze a program,
Masterscope creates a data base of information about the
program. In particular, Marterscope knows which functions call
other functions and which functions use which variables.
Masterscope can then answer questions about the program and
display the information with a browser.

menu A way of graphically presenting the user with a set of options.
There are twO kinds of menus: p0~up menus are created when
needed and disappear after an item has been selected;
permanent menus remain on the screen after use.

mouse The Mouse is the box to the right of your keyboard. It controls
the movement of the cursor on your screen. As you become
familiar with the mouse, you will find it much quicker to use the
mouse than the keyboard. See Figure 1.4. (Note: Some mice
have three buttons; the button in the center is known as the
middle mouse button. If your mouse has only two buttons, you
can simulate a middle button by pressing the left and right
buttons simultaneously.).

Fw- 1.& Mousù

Mouse Curtor The small arrow on the screen that points to the northwest. See
Figure 1.5.

F~m I.L Mousù c~~~
Mousù Curtor Icons

I.A A llEF GLos~Y
l

A IRlEF GLOSSARY

I Wait Tho processor is busy.

The processor is saving a anpashot or your cureent system session.
This is usually donù when tbc procffssor hos ~n idle for a while.

The "Mouse Confirm Cursor". It appeatt when you have to
confirm that the choice you just made was correct. If it was, press
the left button. If the choice was not tight, press the right
button to abort.

F='*x This means "sweep out" the shape of the window. To do this,
move the mouse to a position where you want a corner. Press
the leff mouse button, and hold it down. Move the mouse
diagonally to sketch a rectangle. When the rectangle is the
desired size and shape, release the left button.

r-'l
l

l

l
l

- This is the "move window" prompt. Move the mouse so that the
large "ghost" rectangle is in the position where you want the
window. When you click the left mouse button, the window will
appear at this new location.

NIL NIL is the lnterlis~D symbol for the empty list h can also be
represented by a lefl paren followed by a right paren: (). It is the
only expression in lnterIis~D that is both an atom and a list
pixel Pixel rtands for PIcture Element. The xreen of your Lisp Machine
is made up of a rectangular array of pixels. Each pixel
corresponds to one bit When a bit is turned on, i.e. set to 1, the
pixel on the screen represented by this bit is black.

pretty printing Pretty printing refers to the way lnterIis~D functions are printed
with special indentation, to make them easier to read. Functions
are pretty printed in the structure eclitor, DEdit (See Section 11.3,
Page 11.4). You can pretty print uncompiled functions by calling
the function PP with the function you would like to see as an
argument, i.e. (PP tunction-name). For an example of this, see
Figure 1.6.

96.(PP HEAD)

[LANBDA (LST) <øù6rtùG; `ù~JlinH13;3&ù)
(CAR LsTJ)
(HEAD)
97.'

Fbm 1.6. An oxam~ u~oftho pro printing `unmon FP

A BRIEF GLOSSARY 1.5
I

A BRIEF GLOSSARY

Programmer's Assistant The programmer's assistant accesses the History List to allow you
to FIX, UlOO, and'or REDO your previous expressions typed to
the lnterlis~D executive window. (See Chapter 6.)

Promptwindow The skinny black window at the top of the xreen. It displays
system prompts, or prompts you have developed. (See Figure
1.7.)

Fqurù 1.7. Prompt window

property list A list of the form ( <property-namel> <property-valuel>
<property-name2> <property-value2> ....) associated with
an atom. It accessed by the functions GETPROP and PUTPR0P.

record A record is a data-structure that consists of named "flelds".
Accessing elements of a record can be separated from the details
of how the data structure is actually stored. This eliminates
many programming details. A record definition establishes a
record template, describing the form of a record. A record
instance is an actual record storing data according to a particular
record template. (See datatype, second definition.)

Right Button Default Window Menu This is the menu that appeaff when the mouse is in a window,
and the right mouse button is pressed. It looks like the menu in
Figure 1.8. If this menu does not appear when you depress the
right button of the mouse and the mouse is in the window, move
the mouse so that it is pointing to the title bar of the window,
and press the right button.

Clone
Snap
Paint
Clear
8ury

Redi~play
Hardcopy~
Move
Shapo
Shrink

f~a 1.1. ttù Right Sutton DqfaultWindow Menu

5-expression Short for "symbolic expression." In Lisp, this refers to any
well-formed collection of leff parffns, atoms, and right parens.

stack A pushdown lirt Whenever a function is entered, information
about that specific function call is pushed onto (i.e. added to the
front ofi the stack; this information includes the variable names
and their values associated with the function call. When the
function is exitted, that data is popped off the stack.

storagù devices Information is rtored for your Lisp machine on floppy disks, or on
the hard disk. They are referred to as (FLOPPY) and (DSK)
respectivùly.

sysout A fllù containing G wl'0lù Lisp environmùnt: namely, lnterlis~O,
evùrything thù user' dùfinecl or loaded into the environment, thù

1.6 A ~N:EF GL0SsARY
I

A BRIEF GLOSSARY

windows that ùppeored on tho Kreen, tbù ùmount of memory
used, and 50 on. Evorything ;s rtorùd in thù sysout filù exactly .5 it
was whon tho function SYSWT was called).

TFACE A function that crùates a trace of the execution of another
function. Eich time the traced function is called, it prints out the
values of the arguments it was called with, and prints out the
value it returns upon completion.

Unbound Without value; an atom is unbound if a value has never been
assigned to it

window A rectangular area of the screen that acts as the main display
area for some Interlisp process,

A BRIEF GLOSSARY 1.7
1



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6. TYPING SHORTCUTS

Once you have logged it, as per Chapters 3 or 4, you are in
lnterlis~D. The functions you type into the Interlisp-D executive
window will now execute, that is, perform the designated task.
Please note that Interlisp-D is case-sensitive; offen it matters
whether text is typed in capital- or lower-case letters. The
shifflock key is above the left shift key; when it is pressed (on the
1186, the red LED will be on; on the 1108, the key will be
depressed), everything typed is in capital letters.
You must type all Interlisp-D functions in parentheses. The
lnterlis~D interpreter wtll read from the leff parenthesis to the
closing right parenthesis to determine both the function you
want to execute, and the arguments to that function. Executing
this function is called evaluation. When the function is
evaluated it returns a value, which is then printed in the
lnterlis~D executive window. This entire process is called the
read-eval-print loop, and is how most Ll5P interpreters, including
the one for lnterlis~D, run.

The prompt in Interlis~D is a number followed by a left pointing
arrow (see Figure 6.3). This number is the function's position on
the History List -- a list that stores your interactions with the
lnterlis~D interpreter. Type the function (PLUS 3 4), and
notice the number the History List assigns to the function (the
number immediately to the leff of the arrow). lnterlis~D reads
in the function and its arguments, evaluates the function, then
prints the number 7.

In addition to this read-eval-print loop, there is also a
programmer's assistantùù. It is the programmer's assistant that
prints the number as part of the prompt in the lnterlis~D
executive window, and uses these numbers to reference the
function calls typed after them.

When you issue commands to the programmer's assistant, you
will not use parentheses as you do with ordinary function calls.
You simply type the command, and some specification that
indicates which item on the history list the command refers to.
Some programmer's assistant commands are FIX, REDO, and
UNDO. They are explained in detail below.

Programmer's assistant commands are useful only at the
lnterlis~D top level, that is, when you are typing into the
lnterlis~D executive window. They will not work in user-defined
functions.

As an example use of the programmer's assistant, use REDO to
redo your function call (PLUS 3 4). Type REDO (Note:
programmer's assistant commands can be typed in either upper

TYPING 5H0RTCUTS 6 1

TYPING SHORTCUTS

or lower case) at the prompt, then specify the previous
expression in one of the following ways:

(1) When you originally typed in tne function you now want to refer
to, there was a History List number to the left of the arrow in the
prompt. Type this number affer the programmer's assistant
command. This is the method illustrated in the following figure:

iPLUe~ 3 4)
Cù'5~REOO `24
7

26-','

, , , . . , . , . . . . . . . , . . . . , , ,
, .
Figure 6.1. Using the programrner's assistant to REDO a function, when you
know the its number on the history list

(2) A negative number will specily the function call typed in that
number of prompts ago. in this example, you would type in-I,
the position immediately before the current position. This is
shown in the following figure:

`2ø~.(PLUS :3 j)
;;;;

`-,7'

ii, ~` F.EDS -i
7

:ù`0~.

,
, , , , ,: , , :, , ,:, , , , , , ;, : , , , ,; , ,

Figurù 6.2. Typing a negative number affer the programmer's assistant
command will cause it use the function found on the History List that many
positions before the current one.

(3) You can also specify the function for the programmer's assistant
with one of the items that was in that function call. The
programmer's assistant will se'rch backwards in the History List,
and use the first function it finds that includes that item. For
example, type REDO PLUS to have the function (PLUS 3 4)
reevaluated.

(4) If you type a Programmer's Assistant command without
specifying a function (i.e., simply typing the command, then a cr)
the Programmer's Assistant executes the command using the
function entered at the previous prompt.

Here are a few more examples of using the programmer's
assistant:

G.a TYPING SHORrCUff
1

TYPING SH0RTCUTS
NIL

54k[PLUS 4 5)
9

55~REDO
9

56#??

54 +(PLUC~ 4 5)
9

56~(SETQ B `80Y)
BOY
5'~B
BOY

59" UNDO cETQ
SETQ undone.
59'.B

UN8OUND nTOM
B

SBkREDO 56
BOY
6IkB
BOY
62#

Fqùurù 6.3. Some Applications of the Programmer's Assistant

6.1 If you make a Mistake

Editing in the Interlisp-D Executive Window is explained in
Section 11.2, Page 11.2. In this section, only a few of the most
useful commands will be repeated.

To move the caret to a new place in the command being typed,
point the mouse cursor at the appropriate position, and press the
leff mouse button.

To move the caret back to the end of the command being typed,
press CONTROL-X. (Hold the CONTROL key down, and type ù.X.'.)
The way you choose to delete an error may depend on the
amount you need to remove. To delete:

The character behind the caret simply press the backspace key
The word behind the caret press CONTROL-W. (Hold the CONTROL key down, and rype
`ùW'ù.)

Any part of the command, first move the caret to the appropriate place in the command.
Hold the right mouse button down and move the mouse cursor
over the ten. All of the blackened tert between the caret and
mouse cursor is deleted when you release the right mouse
button.

TYPING SHORTCUTS 63

IF YOU MAKE A MISTAKE

The entire command press CONTROL-U. (Hold the CONTROL key down, and type in".)
Deletions can be undone. Just press the UNDO key.
To add more text to the line, move the caret to the appropriate
position, and just type. Whatever you type will appear at the
caret.

6.4 TYPING SHORTcUTS



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7. USING MENUS

The purpose of this chapter is to show you how to use menus.
Many things can be done more easily using menus, and there are
many different menus provided in the Interlisp-D environment.
Some are "po~up" menus, that are only available until a
selection is made, then disappear until they are needed again.
An example of one of these is the "background menu", that
appears when the mouse is not in any window and the right
mouse button is pressed. A background menu is shown in Figure
7.1. Yours may have different items in it.

SkGtL'h
LUop3 Icon
CHAT
F.lle0ro~er

sav"VM
5nap

Figure 7.1. A hackground menu.

Another common pop-up menu is the right button default
window menu. This menu is explained more in Section 10.4,
Page 10.3.

Other menus are more permanent, such as the menu that is
always available for use with the Interlisp-D Filebrowser. This
menu is shown in figure Figure 7.2, and the specifics of its use
with the filebrowser is explained in Chapter 9).

Dnjelsta
Rcname
Hor~'UpJ
-=`ffl.e

Compil'.
E~prnnge

Recrjm Ut.fl,L'

Figure 7.2. The menu that is available when using the Filehrowser

USING MENUS 71
I

MAKING A SELEcTION FROM A MENU

7.1 Making a Selection from a Menu
To make a selection from a menu, point with the inouse to the
item you would like to selert If one of the moU5e buttons is
already pressed, the menu item 5hould blacken. If it is a
permanent menu, you must press the leff mouse button to
blacken the item. When you release the button, the item will be
chosen. Figure 7.3 shows a menu with the item "Undo" chosen.
ù ù1
.lffer
Bpfor',
GeIer~,
Replace
`witch
(

`3 LIt.

Find
`=w~
pcpflnt
Edt

Edfl-Um

0~ik

Eva
E.xit

Figure 73. A menu with the item "Undo" chosen

7.2 Explanations of Men.u Items
Many menu items have explanations associated with them. If
you are not sure what the consequences of choosing a particular
menu item will be, blacken the menu item, and do not release
the leff button. If the menu item has an explanation associated
with it, the explanation will be printed in the prompt window.
Figure 7.4 shows the explanation associated with the item
"Snap" from the background menu.

ile0row~or

Flguvù 7.& The explanation associated with the cliosen item, Snip, is
displayed in the prom pt window.

7.2 USING NENuS
I

SUBMENUS

7.3 Submenus

Some menus items have submenus associated witl, them. This
means that, for these items, you can make even more precise
choices if you would like to.

A submenu can slso be found in one of two ways. One is to point
to the item with the mouse cuttor, and press the middle mouse
button. If there is a submenu associated with that item, it will
appear. (See Figure 7.5.)
ùl
Atter
8e?are
DoloCe
Replace
Yvitch

`ut
l)nda
Find
cap
Repnnt
Edit

EditL'om
Break

Eva OK

TOP

FigurQ 7.5. The submenu associated with the menu item Exit It appeared when
the mouse curtor Pointed to the menu item. and the middle mouse button was
pressed.

A submenu can be indicated by a gray arrow to the right of the
menu item, like the one to the right of the "Hardcopy'ù choice in
Figure 7.1. To see the submenu, blacken the menu item, and
move the mouse to follow the arrow. An example of this is
shown in Figure 7.6. Choosing an item from a submenu is done
in the same way as choosing an item from the menu. Any
submenus that might be associated with the items in the
submenu are indicated in the same way as the submenus
associated with the items in the menu.

Dnclelete .~ .
Copy

Rename
Harjcopv

.=.ee ~~e~;

Loa.d c'.Ee!T.:
E,puni~e

P',com Ll!eù

Figure 7.6. The submenu associated with the menu item Edit - It appeared when
the menu item was blackened, and the mou>e was moved (0 follow the gray
arrow.

In summary, here are a few rules of thumb to rerrember about
the interactions of the mouse, and system menus:
ù Press the leff mouse button to select an item of a menu
ù Press the middle mouse button to get more options - one of the
ways to find a submenu

USING MENUS 73

SUBMENU5

ù Press the right mouse button to see the default right button
window menu, and the background menu

7.4 usiNG MENUS



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8. MOW TO USE FILES

8.1 Types of Files

A program file, or lisp file, contains a series of expressions that
can be read and evaluated by the lnterlis~D interpreter. These
expressions can include function or macro definitions, variables
and their values, properties of variables, and soon. How to save
Interlisp-D expressions on these files is explained in Section 11.6,
Page 11.7. Loading a file is explained below, in Section 8.6, Page
8.4.

Not all files, however, have lnterlis~D expressions stored on
them. For example, TEdit files (see Chapter 23) store tert;
sketches are stored on files made with the package Sketch (see
Chapter 35), or can be incorporated into TEdit files. These files
are not loaded directly into the environment, but are accessed
with the package used to create them, such as TEdit or Sketch.
When you name a file, there are conventions that you should
follow. These conventions allow you to tell the type of a file by
the extension to its name. If a file contains:

Interlisp-D expressions, it should not have an extension. For example, a file called
"MYCODE" should contain lnterlis~D expressions;

compiled code, it should have the extension" .DCOM'ù. For example, a file called
`ùMYCODE.DCOM" should contain compiled code;

a Sketch, then its extension should be ".SKETCHùù. For example, a file
called ù`MOUNTAlNS.SKETCH" should contain a Sketch;

text, it should have the extension ".TEDlTù'. For example, a file called
`ùREPORT.TEDlT'ù should contain text that can be edited with the
editor TEDlT.

8.2 Directories

This section focuses on how you can find files, and how you can
easily manipulate files. To see all the files listed on a device, use
the function DIR. For example, to see what files are stored on
the Y;ard disk, type
(DIR (DSK))

HOW TO USE FILES B1

DlRœG0R1E5

To see what files are stored on the floppy disk inside of the
floppy drive, type
(DIR (FLOPPY))

Partial directory listings can be gotten by specifying a file name,
rather than just a device name. The wildcard "ù`ù can be used to
match any number of unknown characters. For example, the
command
(DIR (DSK)Tù)

will list the names of all files stored on the hard disk that begin
with the letter T. An example using the wildcard is shown in
Figure 8.1

`DIR `(P\h',(LI'.\PFILœ.'.'PRIMER~T';l
`LPQh/''.LI."'l FILE.C\,'PRIMER\
Tsi'REF.>.TEP[1)2
T6LlClNT.TEDIT,1

FigurG 8.1. Using the function DIR with a wildcard

8.3 Directory Options

Various words can appear as extra arguments to the DIR
command. These words give you extra information about the
files.

(1) SIZE displays the size of each file in the directory. For example,
type

(DIR (DSK) SIZE)

(2) DATE displays the creation date of each file in the directory. An
example of this is shown in Figure 8.2

35~(DIR (DsxJ.<LI$PF1LEs>PRIMER~T* DATE)
CREATIDNOATE

(ùDSK)'LI5PFILES~PRIflER?

TA'1"REF~TEPlT;2 26-lun-R5 19:A,O:R2
TBLnrnNT.TEDIT;1 26-lun'66 ja:4R~ù?

3Lq~

. . . . . . : . . . . . . . . . . . .. . . . . . .. . . . .

Figure 8.2. An eximpie using thù dirùctory option DATE
(3) DEL deletes all tho files found by the directory command

G.a H0W TO USE FILES

SUùFlLE DlREO0RlES

8.4 Subfile Directories

Subfile directories are very helpful for orgonizing files. A set of
files that have a single purpose, for example all the external
documentation files for a system, can be grouped together into a
subfiledirectory.

To associate a subfile directory with a filename, simply include
the desired subfile directory as part of the name of the fileù
Subfile directories are specified after the device name and before
the simple filename. The first sibfile directory should be
between less-than and greater-than signs < >, with nested
subdirectory names only followed by a greater-than sign >ù For
example:

[DSK)<D1rùctory>SubOlmctory>SrnbSubDirùctor-y>.. .>fi1on~

8.5 To See What Files Are Loaded
If you type FILELST<CR>, the names of all the files you loaded
will display.

Type SYSFILES<CR>, to see what files are loaded to create the
SYSOUT.

8.6 Simple Commands for Manipulating Files
The following commands will work with the (FLOPPY) and other
devices, but have been shown with (DSK) for simplicityù
To have the contents of a file displayed in a window:
(SEE `[DSK)f11ùnrn)

To copy a file: (coPYFILE `[~)o1dfi1ùn~ `[DSF)ne,r,,ilonrn)
An example of this is shown in Figure 8.3
(sOPvFILE `T~0r,RœFc.TEDIT `PF;IMEFRùEFOù.TœDITJ
t'Dcxl,(.LIsPFILEs.PRIMœP.;ù.PRIMEP.fiEFs.TEDIT;1

Figure 8.3. An example of the use of the function COPYFILE
To delete a file: (DEl.FILœ `(~)fi1on~)
An example of this is shown in Figure 8.4.
ù ,, OELFILœ `L'AMPLE.TEPITJ
ù . \l.. I'PfILE;'."PRIMER?>AnPLE.TœPIT;1

FigureS.O. The function DELFlLE

To rename a file: (RENlEFILE ù(osK)oldftlùnrn `(rSF)ner,r11ùn~)

HOW TO USE FILES 83
1

SIMPLE COMMANDS FOR MANIPULATING FILES

"LOAD" a file: Files that contain Interlisp-D expressions can be loaded into the
environment. That means that the information on them is read,
evaluated, and incorporated into the Interlisp-D environment.
To load a file, type:

(LUG `[DSff)filenm)

When using these functions, always be sure to specify the full
filename, including subfile directories if appropriate.

8.7 Connecting to a Directory
Offen, each person or project has a subdirectory where their files
are stored. If this is your situation, you will want any files you
create to be put into this directory automatically. This means you
should "connect" to the directory.

CONK is the Interlisp-D form that connects you to a directory. For
example, COilKin the following figure:
- 1 l 11

29#(L'OtJN ``CDv~K1,.LIv"PFILES~\PP,IMER7IM\,!,I
t'OS'Y96)cLIy'PFILœCv;~PRIh1œR.~lM>
30#

Fqrnre 8.5. COflffeaing to the subdiredory "PRIMERs srnbsu~i'edory ,.lM"
connects you to the subsubdirectory iM, in the subdirectory
PRIMER, in the directory LlSPFlLES, on the device D5K. This
information, the device and the directory names down to the
subdirectory you want to be connected to, is called the "path" to
that subdirectory. co:: expects the path to a directory as an
argument.

Once you are connected to a directory, the command DIR will
assume that you want to see the files in that directory, or any of
its subdirectories.

Other commands that require a filename as an argument (e.g.,
SEE, above) will assume, if there is no path specified with the
filename, that the file is in the connected directory. This will
often save you typing.

8.8 File Version Numbers

Whe.n stored, each file name is followed by a semicolon and a
number.

fffILE.TEOIY;1

The number ii the vertion number of the file. This is the system's
way of protecting your files from being overwritten. Each time
the file is written, a new file is created with a vettion number one

8.1 HOW T0 us: FILES

FILE VERSION NUMBERS

greater than the lost. This now fle will hove everything from
your previous file, plus all of your changes.

In most cases, you can exclude the version number when
referencing the file. When the vertion is not specified, and there
is more that one vertion of the file on that particular directory,
the System generally uses your most recent version. An exception
is the function DELFILE, which deletes the oldest version (the
one with the lowest vertion number) if none is specified.

HOW TO USE FILES as



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Date: 19 Dec 91 15:03 PST
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tO.THOSE WONDERFUL WINDOWS!

A window is a designated area on the screen. Every rectangular
box on the screen is a window. While Interlisp-D supplies many
of the windows (such as the lnterlis~D executive window), you
may also create your own. Among other things, you will type,
draw pictures, and save portions of your screen with windows.

10.1 Windows provided by Interlisp-D
Two important windows are available as soon as you enter the
lnterlis~D environment. One is the lnterlis~D executive
window, the main window where you will run your functions. It
is the window that the caret is in when you turn on your
machine, and load lnterlis~D. It is shown in Figure 10.1.

Figure 10.1. Interlsp-D Executive Window

The other window that is open when you enter Interlisp-D is the
"Prompt Window". It is the long thin black window at the top of
the screen. It displays system prompts, or prompts you have
associated with your programs. (See Figure 10.2.)

Figure 10.2. Prompt Window

Other programs, such as the editors, also use windows. These
windows appear when the program starts to run, and close (no
longer appear on the screen) when the program is done running.

THOSE WONDERFUL WINDOWS' 101

CREATING A WINDOW

10.2 Creating a window

To create a new window, type: (CREATEil). The mouse cursor
will change, and have a small square attached to it. (See Figure
10.3.)

Figure 10.3. The mouse cursor asking you to sweep out a window
There may be a prompt in the prompt window to create a
window. Press and hold the leff mouse button. Move the mouse
around, and notice that it sweeps out a rectangle. When the
rectangle is the size that you'd like your window to be, release
the leff mouse button. More specific information about the
creation of windows, such as giving them titles and specifying
their size and position on the xreen when they are created, is
given in Section 27.1.2, Page 27.2.

10.3 The Right Button Default Window Menu
Position the cursor inside the window you just created, and press
and hold the right mouse button. A menu of commands should
appear (do not release the right button!), like the one in figure
10.4. To execute one of the commands on this menu, choose the
item. Making a choice from a menu is explained in Section 7.1,
Page 7.2.
clQ1,ù/
Pant
`[oar
Bury

RoJisplay
Hardsopy~
Movc
`5hape
shrink

Figurù 1O.& The Right Button Default Window Menu

As an example, select "Move" from this menu. The mouse cursor
will become a ghost window Oust an outline of a window, the
same size as the one you are moving), with a square attached to
one corner, like the one shown in Figure 10.5.
~l

~l

F~ure 10.1 Thù mousù cunor !or moving & window

Move the mousù around. The ghost window will follow. Click
the left mousù button to placù tho window in a new location.

10.1 TH0Sff w0NKQFUL WlH00~l

f

THE RIGHT 8Uff0N DEFAULT MN00~ MFNU

Choose "Shape", afid notice that you are prompted to sweep out
another window. Your original window will have the shape of
the window you sketch out.

10.4 An explanation of each menu item
The meaning of each right button default window menu item is
explained below:

Close removes the window from the screen;
Snap copies a portion of the screen into a new window;
Paint allows drawing in a window;

Clear cleart the window by erasing everything within the window
boundaries;

Bury puts the window beneath all other windows that overlap it;
Redisplay redisplays the window contents;

Hardcopy sends the contents of the window to a printer or to a flle;
Move allows the wi ndow to be moved toanew spot on the screen;
Shape repositions and/or reshapes the window;
Shrink reduces the window to a small black rectangle callecl an icon.
(See Figure 1O6.)

Figum lO.L An example icon

Expand changes an icon back to iB original window. Position the mouse
cursor on the icon, depress the right button, and select Expand.
Or, just button the icon with the middle mouse button.
These right-button default window menu selections are
available in most windows, including the lnterlis~D Executive
window. When the right button has other functions in a
window (as in an editor window), the right button default
window menu should be accessible by pressing the Right button
in the black border at the top of the window.

10.5 Scrollable Windows

Some windows in Interlisp-D are "scrollable". This means that
you can move the contents of the window up and down, or side
to side, to see anything that doesn't fit in the window.

Point the mouse curtor to the leff or bottom border of a
window. If the window is scrollable, a "scroll bar" will appear.

THOSE WONDERFlJL WINDOWS' 103

SCROLLABLE WINDOWS

The mouse cursor will change to a double headed arrow. (See
Figure 10.7.)

. 1 , 1

Figuro 10.7. The scrolJ bar of a scrollable window. The mouse cursor changes o
a double headed arrow.

The xroll bar represents the full contents of the window. The
example scroll bar is completely white because the window has
nothing in it When a part of the scroll bar is shaded, the amount
shaded represents the amount of the window's contents
currently shown. If everything is showing, the scroll bar will be
fully shaded. (See Figure 10.8.) The position of the shading is
also important. It represents the relationshi'p of the section
currently diplayed to the the full contents of the window. For
example, if the shaded section is at the bottom of the scroll bar,
you are looking at the end of the file.

1 ù .

The amount of :>hadin~ in
A::;:. the scroll bar represents
the amount of the rile

;>hown in the window. Most
of the file is visible.
Because the shading is at
the tap of the scroll bar,
you know you are looking
at the top of the file.

Figurù 10.1 Tho amount of shading in the scroll bar represents the amount of
the file shown in the window. Most of the file is visible. Because the shading sat
the top of the scroll bar. you know you are looking at the top of the file

When the scroll bar is visible, you can control the section of the
window's contents displayecl:

ù To move the contents higher in the window (scroll the contents
up in the window), press the leff button of the mouse, the
mouse cursor changes to look like this:

Fun 10.1. upward icrollinq cuttor.

The contents of the window will scroll up, making the line thit
the cursor is beside the topmost linù in the window.

10.4 THo$a ~HOERFUL~~w51

SCROLLASLE MN00~S

ù To move the contonts lower in the window (scroll the contents
ùùdown" in the window), press the right button of the mouse,
ond the mouse cursor changes to look like this:

Flgrnro 10.10. Oownwùrd scrollinq curtor

The contents of the window scroll down, moving the line that is
the topmost line in the window to beside the curtor.
ù To show a specific section of the window's contents, remember
that the scroll bar represents the full contents of the window.
Move the mouse curtor to the relative position of the section you
want to see (e.g., to the top of the scroll bar if you want to see
the top of the window's contents.). Press the middle button of
the mouse. The mouse cursor will look like this:

f'9ure 10.11. Proportional scrolling crnrtor.

When you release the middle mouse button, the window's
contents at that relative position will be displayed.

10.6 Other Window Functions

10.6.1 PROMPTPRlNT

Prints an expression to the black prompt window.
For example, type

(P~PTPRIKT ùTNIS SILL BE PRIKTED I* THE PAT UIKOoS')
The message will appear in the prompt window. (See Figure
10.12.)

1 . ù1 Il

43 lpROMPTPRINT `THIS WILL BE PRINTED IN THE
PROMPT WINDOW')

Flurf 10.12. PROMPTPRlNTing

THOSE WONDERFUL WINDOWS' 10.5

OTHER WINDOW FUNCTIONS

10.6.2 WHlCNW

Returns as a value the name of the window that the mouse
cursor IS in.

(VHICHW) can be used as an argument to any function
expecting a window, or to reclaim a window that has no name
(that is not attached to some particular part of the program.).

10.6 THOil wONOERFUL~N00vn'



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tl. œDlTUNG AND SAVING

This chapter explains how to define functions, how to edit them,
and how to save your work.

11.1 Defining Functions

DEFINEQ can be used to define new functions. The syntax for it
is:

(HFIffEQ (<tunctionname> (<parameterlist¯
c~y-offrnnction>j>

New functions can be created with DEFINEQ by ryping directly
into the lnterlis~D executive window. Once defined, a function
is a part of the lnterlis~D environment. For example, the
function EXANPLE-ADDER is defined in Figure 11.1.
-

HIL

46=(OEFINEQ (E.~AMPLE-rt"D&ER (~" B cJ
(PRINT `THE SUM OF THE
THREE NUMBERS Is ")
(IPLUS n" B CJJJ
(EXn~MPLE-~&DERj
47-

F1ure 11.1. Defining the function EXAMPLEùADDER

Now that the function is defined, it can be called from the
lnterlis~D executive window:
ù . -

NIL

49'. cEX~-MPLE-ffD&ER 3 4 `J;
"THE SUM OF THE THREE NljMBERS 15
12

c~g

Fq'rnre IIJ. After EXAMPLϝADDER is defined, it can he executed
The function returns 12, after printing out the message.
Functions can also be defined using the editor DEdit described
above. To do this, simply type

(DF furttiorvnamej

EDITING AND SAVING 111
1

DEFINING FUNCTIONS

You will be asked whether you would like to edit a Dummy
definition. A dummy definition is a standard template for your
function definition. Answer by typing Y for Yes, and you will be
able to define the function in the editor. (See Figure 11.3. The
use of the editor is explained in Section 11.3, Page 11.4.)
ù h.'1,flF PJœ~-HOT'E'['ùTi

ù Ho FH~., dean ;or oil NflT-Eùùù 1:-7, on ùoU Ui `;ùh ro ?dlr a `lu

60A "Flùù;:ùl

Figurn 11.1 Using DEdit to define a function

II _ 2 _ Simple _ Editing _ in _ the _ Interlisp-D _ Executive Window
First, type in an example function to edit:
51~(oEFIxEQ (Y~R-FIRST-fuKTIrn (A B)
(if (GREATERP A B

thùn TNE FIR T IS GREATER
elsù THE SECO*O IS 6REATE ))))

To run the function, type (YOUR-FIR$T-FUflcTIoa 3 5).
52~(Y~R-FIRST-Fu~TI: 3 5)
(TNE SEc~ Is GREATER)
Now, let's alter this. Type:
53~FIZ 51 cr

Notf that your original function is redisplayed, and ready to edit.
(SeeFigure 11.4.)

llJ EO1Y1~ AHO SAVING

r,

SIMPLE EDITING IN TNE INTERLISPùD EXECUTIVE WIND0W

NIL

53~FI~ 51
+(DEFINEQ

[YOUR-FIRST-FUNCTION
(A B) (ù edited;

"~1-Dec-GB 19;"8")
(IF (GREaTERPùA B)
THEN (QUOTE (THE FiRST Is
UREATERj)

ELSE (QUOTE (THE SECOND IS
u'RE~~TER] 1A

f~urù11.& Using FIX to editafundion

Move the tert cursor to the appropriate place in the function by
positioning the mouse cursor and pressing the Jeff mouse
button.

Delete text by moving the caret to the beginning of the section to be
deleted. Hold the right mouse button down and move the
mouse cursor over the text. All of the blackened text between
the caret and mouse cursor is deleted when you release the right
mouse button.

If you make a mistake deletions can be undone. On an 1108, press the OPEN key to.
UNDO the deletion. On an 1108, press the UNDO key on the
keypad to the Jeff of the keyboard.
Now changeGREATERtoBIGGER:

(1) Position the mouse cursor on the G of GREATER, and click the leff
mouse button. The text curtor is now where the mouse cursor 15.

(2) Next, press the right mouse button and hold it down. Notice
that if you move the mouse cursor around, it will blacken the
characters from the text cursor to the mouse cursor. Move the
mouse so that the word "GREATER" is blackened.
(3) Release the right mouse button and GREATER is deleted.
(4) Without moving the cursor, type in BIGGER.
(5) There are two ways to end the editing session and run the
function. One is to type CONTROL-X. (Hold the CONTROL key
down, and type "X".) Another is to move the text cursor to the
end of the line and crù In both cases, the function has been
edited!

Trythe new version of the function bytyping:
58~(Y~-FZRST-F~Tzrn 8 9)
(TNœ sEc~ Is BIKER)

and get the new result, or you can type:
5~RE00 52cr

(TNE SEc~ Is BIKER)

EDITING AND SAVING 11.3

USING THE LIST STRUaURE EDITOR

11.3 Using The List Structure Editor
If the function you want to edit is not readily available (i.e. the
function is not in the Interlisp-D Executive window, and you can't
remember the history list number, or you simply have a lot of
editing), use the List Structure Editor, offen called DEdit. This
editor is evoked with a call to OF:

81~(DF YWR-FIRST-f~TIa)

Your function will be displayed in an edit window, as in Figure
11.5.

If there is no edit window on the screen, you will be prompted to
create a window. As before, hold the leff mouse button down,
move the mouse until it forms a rectangle of an acceptable size
and shape, then release the button. Your function definition
will automatically appear in this edit window.

!L~nb&A IA Bj (* OJtfJ' ùù:ù1ùO:cw `~;`~``ù .~.tr~r
(IF 113'REATEPP A B'i EqV;r~
THEN iOùUUTE "THE ::.pù'.T f ~Ir,GER),l cl,,t'
ELSE 1~UUTE THE .=ùE.u'N& j:. eluh'ER;J)) 4ep~:c
/``tC.h
.
Un~io
Find

Rcorint
cit.

EOlfl/C T7~
Sr:ok
Eù.. y
E..t.

Figurù Il.L An Edit Window

Many changes are easily done with the structure editor. Notice
that by pressing the left mouse button, different expressions are
underlined. Underline BIGGER as in Figure 11.5. Release the left
mouse button.

To add an expression that doesn't appear in the edit window,
(i.e. it can't simply be underlined), just type it in. Doing this will
create an edit buffer below the DEdit window. For example,

type LARGER and hit crù (Remember to cr! You won't be able to
do anything in the editor until you cr - this can fool you at first,
so beware.) A new window opens up at the bottom for the new
expression. (See Figure 11.6.)

LARGER now has the bold line underneath it, while BIGGER has
a dotted line.

A

11.4 EDITING ~O ~VING

USING THE LIST STRUCTURE EDITOR

, LAMDOA VA B\ ~ù ùdltùd `ù3' ùOùc 00 l F;3Q'ù) ArtOr
VV (OREATERP A B) Befom
~ VQUOTE -THE FIRST Is 816OER)) cOIOtO
(15 (QUOTE VTHE SEL'ONO IS BIW~Ry,\.i Ropl&ce
witch
( )

y)out
Unoo
Find
wap

FQum Il.L Edit Window with Edit Buffer

DEdit keeps track of items you have chosen by Using a stack. The
underlines tell you the order of the items on the stack. The solid
underline indicates the item on the top of the stack; the dotted
underline indicates the second to the top. (liIGGER was pushed
on first. When LARGER was pushed on, BIGGER became the
second element in the "stack", and LARGER the first.)

Many commands operate with two items on the stack. Some of
them are listed below:

Atter pops the stack, and adds this top item (in this example, LARGER)
to the edit window affer the second item on the stack(in this
example, BIGGER). The item that was at the top of the stack,
LARGER, will now appear in both the original and the new
position.

Before pops the stack, and adds this top item (in this example, LARGER)
to the edit window before the second item on the stack. (See
Figure 11.7.)

(LAKBDA VA 8' C' oJ'lfG `3,-Oocù~ ~F;l.Oùù ,~rtOr
(IF VGREATERp A 8J E~'inre
~ (QUOTE (THE FIRST IS ~`R ,8ùIUGEP); cOlGte
ELI (QUOTE (THE SECOND IS 8I,ùb'E .j! ,1J F!Gplace
itch
r

tJut
Undo
Find
,=-.i,1r
P.O~rir,t
Eda

fiUre 11.7. The command Before is chosen; the word LARGER appean
Iefore the word BIGGER

Replace pops the stack, and substitutes this top item for the second item
on the stack.

Sat tch changes the position of the first and second items on the stack in
the edit window.

Find pops the stack, and searches this top expression for an occurance
of the second item on the stack. If the item is found, it is
underlined with a solid line, that is, pushed on the stack. To find
the next occurance, simply choose "Find" again. If the
expression is not found, the prompt window will blink, and a

EDITING AND SAVING 115
1

USING ~E LIST STRUCTURE EDITOR

ùspùc1ù11~ asùfa1 If yri ant to &pùcù ~r coùants)
There are other editor commands which can be very UsefUl. To
learn about them, read to the lntertis~D Reffrence Manual,
Volume 2, Section 16, on DEDIT.

it .4 _ File _ Functions and _ Variables - _ How to _ See Them _ and _ Save Them
With lnterlis~D, all work is done inside the "Lisp Environment".
There is no "Operating System" or "Command Level" other than
the lnterlis~D Executive Window. All functions and data
strUctures are defined and edited using normal Interlisp-D
commands. This sertion describes tools in the Interlisp-D
environment that will keep track of any changes that you make
in the environment that you have not yet saved on files, such as
defining new functions, changing the values of variables, or
adding new variables. And it then has you save the changes in a
file you specify.

11.5 File Variables

Certain system-defined global variables are used by the file
package to keep track of the environment as it stands. You can
get system information by checking the values of these variables.
Two important variables follow.

ù FILELST evaluates to a list, all files that yoU have loaded into
the lnteris~D environment.

ù filenameC0liS (Each file loaded into the Lisp environment has
associated with it a global variable, whose name is formed by
appending "COMS" to the end of the filename.) This variable
evaluates to a list of all the functions, variables, bitmaps,
windows, and soon, that are stored on that particular file.
For example, if you type:
~FILEC0*s

the system will respond with something like:
FKS YouR-FZRST-Fu*CTIil )
VARS))

11.6 Saving Interlisp-D on Files
The functions (FILES?) and (NAKEFILE `filename) are
useful when it is time to save function, variables, windows,
bitmaps, records and whatever else to files.

EDITING AND SAVING 117
I

USING THE LIST STRUCTURE EDITOR

message that the item was not found will appear. (See Figure
11.8 for an example of an item, the atom THIRD, not appearing
in the function, YOUR-FIRST-FUKCTION.

ù1

L.flFBo~P~ù~T\P _ B! (,`-.J'l-.J. _ .z' _ P..,n _ 1-
THEN `c1.lcTE _ `THE _ FIPT _ ~I.'i'.EP']
ELSE 1ùtlJlJTE _ HE _ `/E/l)MlD

TrtI,,,v Sr.i
El

ET.

Figwù 11.& The atom THIRD is not in the fundion being edited
Saap changes places, on the stack, of the first and second items on the
stack. The edit window does not change, except that the
expression that had a solid underline now has a dotted
underline, and vice versa.

Delete works on only the top item of the stack. Delete removes the
solid underlined expression from the edit window.
Undo undoes the last editor command.

Completing the example begun earlier, here's how to have the
word LARGER that you typed into the edit buffer appear in place
of the BIGGER that you selected from the DEdit window: select
the SWITCH command. Notice that the two items are switched,
and the stack is popped. Now select EXIT and to leave the
editor, and your function will again be redefined.

11.3.1 Commenting Fundions

Tert can be marked as a comment by nesting it in a set of
parentheses with a star immediately after the left parenthesis.
(ù This ii thù Von of ù c~rtt)

Inside an editor window, the comment will be printed in a
smaller font and may be moved to the far right of the code.
Sometimes, however, centered comments are more appropriate.
To center a comment, type ,, .... after the left parenthesis.
ù This co.oortt ù111 rtot bù rnd to thù ?ùr ri9ht of thù
co5où but ù111 bù cùrttùrd)

It is also possible to insert Iinebreaks within a comment. A dash
should be placed in the comment whcrevùr A carriagù return is
needed. Thii feoturù allows several commùnt1 to bù placed
insidù one S.t of pirùntheses.

(ù This coøoo.t ù111 h t~~ at. tùo 1iùos. -

11.6 FIrING AND LAYING

SAVING INTERLlSP-D ON FILES

(FILES?) displays a list of variables that have values and are not already a
part of any file, and then the functions that are not already part
of any file.

Type:

(FILES?)

the system will respond with something like:
tbù variables: ~.VARIlLE cURREKT.tuRTLE.. to be du;ed.
thù functions: RI6HT LEFT FOIAff liCK*Aa cLEAR-uREEil.. to
be d~~.

srit to s&y ùbere thù abovù go?

If you type Y, the system will prompt with each item. There are
three options:

(1) To save the item, type the filename (unquoted) of the file where
the item should be placed. (This can be a brand new file or an
existing file.)

(2) To skip the item, without removing it from consideration the
next time (FILES?) is called, type crù This will allow you to
postpone the decision about where to save the item.
(3) If the item should not be saved at all, type J. NoilhQ re will
appear afler the item.

Part of an example interaction is shown in the following figure:

HIL

u31~(FILES,)

Che variables: MY-'y'AR. To be di.imped.
the functions: MY-SEcuNO-FUtllJTIJN,
YJUP-FIPùoT'FUNi)TIJN
to be dumped.

want to say where the .ibove 30 ù? `ye'
(variables)
NY-VAR Nowhere
(runctions)

NY-SELrnNO-FUN&'TION File name: E;~AMPL~

F~11.9. Part of an interaction using the function FILES?
(FILES?) assembles the items by adding them to the
appropriate file's COMS variable. (See Section 11.5, Page 11.7.)
(FILES?) does NOT write the file to secondary storage (disks or
floppies). It only upclates the global variables discussed in
SectionIt.S.

(NAKEFILE `Tl lenaùe) actually writes the file to secondary storage. Files should only be
writen when the time is set. If the time is not set, you will run
into problems, such as not being able to copy your file. To check
the time, typù
(riTE)

If the date is correct, yoU can safely use IRE FILE. If it is riot
correct, set the time with the function SETTIKE. To use it, type
(SETTIKE date), where datù isa string such as the one shown
inFiguretl.10.

it.a Eomlflll ANC SAVING
I

SAVING INTERUSP~ ON FILES

NIL

97;k(SETTIME "10-Jul-86 15:08 2<8)
"i6-Jul-86 15;08:22 EDT"
98+

Fqùurn 11.10. Using the SETTIKE function to set the date and time
Once the time is set correctly, use the function MAKEFILE. Type:
(liffEFILE `P.FILE.~)

and the system will create the file. The function returns the full
name of the file created. (i.e. (DSK)MY.FlLE.NAME.; 1).
Note: Files written to (DSK) are permanent files. They can be
removed only by the user deleting them or by reformatting the
disk.

Other file manipulation functions can be found in Section 8.6,
Page 8.3.

EDITING AND SAVING 119
I



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Date: 19 Dec 91 15:20 PST
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t3. FLEXIBILITY AND FORGIVENESS:
CLISP AND DWIM

CLlSP, (Conversational Lisp), and DWlM, (Do What Mean), are
two Interlisp utilities that make life easier.

13.1 CLlSP

CLlSP allows the machine to understand and execute commands
given in a non-standard way. For example, Figure 13.1 contains
an example expressi on (4 + 5).

NIL

b'4-iJ + 5;
9

85'

F9ure 13.1. cLlsP allows the use of infix notation

Without CLlSP, you would need to type this using the notation
(PLUS 4 5). CLlSP allows you to use expressions such as (4 +
5) for all arithmetic expressions.

CLlSP also allows you to use more readable forms inrtead of
standard Lisp control structures. Expressions like IF-THEN-ELSE
statements can replace COND statements. For example, instead
of:

(CIO 1J6RE(APLTUESRPBA B (PLUS A 10))
10

the following can be used:

(if (A ~ B) then (A + 10) else (B + 10))

The system translates this CLlSP code into Interlisp-D code.
Setting flags will allow you to either save the CLlSP code, or save
the translation. One such flag is CLISPIFTRANFLG; if it is set to
ffIL, all the IF statements will be replaced with the equivilent
CORD statements. This means that when you DEdit the function,
the IF will be removed and replaced with the CORD. Typically,
flags such as this one are set in your INlT file. These flags are
dixussed in the Intertlsp-D Reference Manual in Volume 2,
Section 21.

FLEXIBILITY AND FORGIVENESS. cLIsP AND DWIM 13 I
I

OWlM

13.2 DWlM

DWlM tries to match unrecognized variable and function names
to known ones. This allows Lisp to interpret minor typing errors
or misspellings in a function, without causing a break. Line 87 of
Figure 13.2 illustrates how the misspelled 0ANNANNA was
replaced by 8ANANA before the expression was evaluated.

NIL

a7(8ETQù 8~ùN.HA `FRUITj
FRUIT

38'8nNN,,~NNA
=8,,'H,,NA
FRUIT
39'

Figure 13.2. Examples of CLlSP and DWlM features

Sometimes DWlM may alter an expression you didn't want it to.
This may occur if, for example,a hyphenated function name (eg.
(NY-FUNCTION)) is misused. If the system doesn't recognize it,
it may think you are trying to subtract "FUN~lON" from "MY".
DWlM also takes the liberty of updating the function, so it will
have to be fixed. However, this is as much a blessing as a curse,
since it points out the misused expression!

13.2 F~1lUM AND ~ROVENES$: cub AND OWN
I



     ----- End Forwarded Messages -----


Figure 13.2. Examples of CLlSP and DWlM features

Sometimes DWlM may alter an expression you didn't want it to.
This may occur if, for example,a hyphenated function name (eg.
(NY-FUNCTION)) is misused. If the system doesn't recognize it,
it may think you are trying to subtract "FUN~lON" from "MY".
DWlM also takes the liberty of updating the function, so it will
have to be fixed. However, this is as much a blessing as a curse,
since it points out the misused expression!

13.2 F~1lUM AND ~ROVENES$: cub AND OWN
I


     ----- End Forwarded Messages -----

-TIMESROMAN
-VH(DEFAULTFONT 1 (GACHA 10) (GACHA 8) (TERMINAL 8) (POSTSCRIPT (GACHA 8)))
-
E

(

zº
\ No newline at end of file
diff --git a/docs/primer/DRAFT2.TEDIT b/docs/primer/DRAFT2.TEDIT
deleted file mode 100644
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--- a/docs/primer/DRAFT2.TEDIT
+++ /dev/null
@@ -1,6 +0,0 @@
-Second Group

Date: 19 Dec 91 18:11 PST (Thursday)
Posted-Date: 19 Dec 91 18:19 PST
From: John Sybalsky:PARC:Xerox
Subject: more primer files.
To: porter:mv:envos

>>CoveringMessage<<

     ----- Begin Forwarded Messages -----

Date: 19 Dec 91 15:28 PST
From: sybalsky:PARC:Xerox
To: sybalsky
Message-ID: <<91Dec19.152817pst.43009@origami.parc.xerox.com>.?::>

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F- 14. BREAKPACliGE

The Break Package is a part of Interlisp that makes debugging
your programs much easier.

14.1 Break WindoNT

A break is a function either called by the programmer or by the
system when an error has occurred. A separate window opens
for each break. This window works much like the Interlisp-D
Executive Window, except for extra menus unique to a break
window. Inside a break window, you can examine variables,
look at the call stack at the time of the break, or call the editor.
Each successive break opens a new window, where you can
execute functions without disturbing the original system stack.
These windows disappear when you resolve the break and return
to a higher level.

14.2 Break Package Example

This example illustrates the basic break package functions. A
more complete explanation of the breaking functions, and the
break package will follow.

The correct definition of FAGTORIAL is:
(DEFIKEQ (FMT0RIAL (xj
then 1

(ifùf5ù (ITIES x (f~ToRIAL (sue, xj

To demonstrate the break package, we have edited in an error:
DUffKY in the IF statement is an unbound atom, it lacks a value.
(DœFIKEQ (F~T0RIAL (xj
then ~

(if~[~~ (ITIKES x (FACTORIAL ~suei xj

The evaluated function
(F~T0RI~ 4)

should return 24, but the above function has an error. DUMMY
is an unbound atom, an atom without an assigned value, so Lisp
will "break". A break window appears (Figure 14.1), that has all
the functionality of the typing Interlisp-D expressions into the
lnterlis~D executive window (The top level), in addition to the
break menu functions. Each consecutive break will move to
another level "down".

BREAK PACKAGE 141

BREAK PACKAGE EXAMPLE

51+(PP Fllu'T&RIAL)
cFACTORlAL

[LA'NBOR ! `.j "ørOMnœNT~ø
(if (EROP `~
i,,ien Dummy

6Jil (lTIflEc A !FR~TORIAL !.UB1 :~j;
!FACTCPIALj
5?(FALTORIAL 4,1

DUMMY (in FAi',TORlALJ in =ERDP P1!t4flY
only br'okùon!

Figuro I..l. Break window

Move the mouse cursor into the break window and hold down
the middle mouse button. The Break Menu will appear. Choose
BT. Another menu, called the stack menu, will appear beside the
break window. Choosing stack items from this menu will display
another window. This window displays the function's local
variable bindings, or values. (See Figure 14.2) This new window,
titled FACTORlAL Frame, is an inspector window. (See inspector
Chapter 32).
Sr

fau'TUR[AL

EP.PoM5ET
fiRE&1

UNBOUND ATOM LflQ
DUMMY (in fAcTORIAL) in \(ZEROP x) DUMMY) cob ù
FLùiDRI~

(DUMMY broken) cob
FkWRl~
L.OB

F,c~RI~
L'4M0

Figun 14.3. Back Yraco of trio 5ystem Stack

From the break window, you can call the editor for the function
FACTORIAL by typing
(OF F~15IL)

Underline X. Choose EVAL from the zditor menu. The value of
X at the time of thff break will appear in the edit buffer below
tho editor window. Any list or atom can be evaluated in this way
(See Figure 14.3.)

14.1 lRF~PACMA'GF

BREAK PACKAGE EXAMPLE

UNBOUND ATOM

ù DUMMY (in FACTORIAL ~ (ITIKES x \ùfASTORIAL ~SUB1 X))))) Replace
switch

( )

ù (DUMMY broken) ()cUt

OF FAL'TORIAL) Undo

Find
Swop
Reprint
Edit

EatCam
Break
E~a1
E.t

Figure 14.3. Editing from the Break Window

Replace the unbound atom DUffNY with 1 ù Exit the editor with
the EXIT command on the editor menu.

The function is fixed, and you can restart it from the last call on
the stack (It does not have to be started again from the Top
Level) To begin again from the last call on the stack, choose the
last (top) FACTOR1AL call in the BT menu. Select REVERT from
the middle button break window, or type it into the window.
TThe break window will close, and a new one will appear with
the message: FACTORlAL broken.

To start execution with this last call to FACTORIAL, choose OK
from the middle button break menu. The break window will
disappear, and the correct answer, 24, will be returned to the top
level.

14.3 _ Ways to _ Stop _ Execution _ from the _ Keyboard, called _ "Breaking _ Lisp"
There are ways you can stop execution from the keyboard. They
differ in terms of how much of the current operating state is
saved:

Control-G provides you with a menu of processes to Interrupt. Your process
will usually be ù` EXEC". Choose it to break your process. A break
window will then appear.

Control-B causes your function to break, saves the stack, then displays a
break window with all the usual break functions.
For information on other interrupt characcers, see the Interlisp
Reference Manual, volume 111, page 30.1.

8REAKPAcKAGœ 14.3
I

PROGRAMMING BREAKS AND DEBUGGlNG CODE

14.4 Programming Breaks and Debugging Code
PrOgramming breaks are put into code to cause a break when
that section of code is executed. This is very useful for
debugging code. There are 2 basic ways to set prOgramming
breaks:

(BREAK functionna:e) This function call made at the tOp level will cause a break at the
start of the execution of "functionname". This is helpful in
checking the values of parameters given to the function.

Setting a break in the editor Take the function that you want tO break into the editor.
Underline the expression that should break before it is
evaluated. Choose BREAK on the editor command menu. Exit
the editor. The function will break at this spot when it is
executed.

Once the function is broken, an effective way tO use the break
window for debugging is to put it into the editor window. (See
Section 14.2, Page 14.2.) All the local bindings still exist, so you
can use the editor's EVAL command to evaluate lists, variables,
and expressions individually. Just underline the item in the usual
way (move the mouse to the word or parenthesis and press the
leff mouse button), then choose EVAL from the command menu.
(See Section 14.2 for more detail.)

Both kinds of programmed breaks can be undone using the
(UNBREAK) function. Type
(~KBRDF functionnm)

Calling (UNBREAK) without specifying a function name will
unbreak all broken functions.

14.5 Break Menu

Move the mouse cursor into the break window. Hold the middle
button down, and a new menu will pop up, like the one in Figure
14.4.

OK
BT
BY!
"a

f~ure 14.& Thù middle bUtton menu in the Break window
Five of the selection& are particularly important when just
starting to use lnterlis~D:

8T Sack Trace displays the stack in a menu beside the break
window. Back Trace is a very powerful debugging t00l. Each
function call is placed on tho stack and removed when the
execution of that function is complete. Choosing an item on thù
stack will open another window displaying that item's local

1(. 8~xpAcl:AGE

E~

BREAK MENU

voriobles and their bindings. This is on inspector window thit
offers all the power of the inspector. (For details, see the section
on the Inspector, Chapter 32).

? Sefore you use this menu option, display the stack by choosing
8T from this menu, and choose a function from it. Now, choose
7: It will display the current values of the arguments to the
function that has been chosen from the stack.

~ Move back to the previous break window, or if there is no other
break window, back to the top level, the InterlispùD Executive
Window.

REVERT Move the point of execution back to a specified function call
before the error. The function to revert back to is, by default,
the last function call before the break. If, however, a different
function call is chosen on the BT menu, revert will go back to the
start of this function and open a new break window. The items
on the stack above the new starting place will no longer exist.
This is used in the tutorial example. (See Section 14.2, Page 14.1.)
OK Continue execution from the point of the break. This is useful if
you have a simple error, i.e. an unbound variable or a
nonnumeric argument to an arithmetic function. Reset the
variable in the break window, then select OK. (See Section 14.2.)
(Note: In addition to being available on the middle button menu
of the break window, all of these functions can be typed directly
into the window. Only ST behaves differently when typed. It
types the stack into the trace window instead of opening a new
window.)

14.6 Returning to Top Level

Typing Control-D will immediately take you to the top level from
any break window. The functions called before the break will
stop, but any side effects of the function that occurred before
the break remain. For example, if a function set a global variable
before it broke, the variable will still be set afler typing
Control-D.

BREAK PACKAGE 14.5
1



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27. WINDOWS AND REGIONS

27.1 Windows

Windows have two basic parts: an area Ofi the screen containing
a collection of pixels, and a property list. The window properties
determine how the window looks, the menus that can be
accessed from it, what should happen when the mouse is inside
the window and a mouse button is pressed, and soon.

27.1.1 CREATEW

5ome of the window's properties can be specified when a
window is created with the function CREATEW. In particular, it is
easy to specify the size and position of the window; its title; and
the width of its borders.

(CREATEW region title borderw'idth)

Region is a record, named REGION, with the fields left,
botto:. width, and height. A region describes a
rectangular area on the screen, the window's dimensions and
position. The fields left and bottoù refer to the position of
the bottom leff corner of the region on the screen. Vi dth and
height refer to the width and height of the region. The usable
space inside the window will be smaller than the width and
height, because some of the window's region is consumed by
the title bar, and some is taken by the borders.

Title is a string that will be placed in the title bar of the window.
Bordervvidtfr is the width of the border around the exterior of
the window, in number of pixels.
For example, typing:
(SETQ ~.WIN~ CREATEW
(CREAT RE6IS loo 150 300 200)
THIS Is ~ r"w ilIN~ù )

produces a window with a default borderwidth. Note that you
did not need to specify all the window's properties. (See Figure
27.1.)

wiNDows AND REGIONS 27

WINDOWS

ù ,.J[1.lGJ'J (ùflf,,Tfff i'ùCRE"TEPE,IrnN jvjw 5- `9;, ù"~~i
"TriI;' I> My ij'lN `ff Ibl&U'M' ii

(~[N&JwlM2.65554

FigUre 27.1. Creating a Window

In fact, if (CREATEW) is called without specifying a region, you
will be prompted to sweep out a region for the window. (See
Section 10.2, Page 10.2.)

27.1.2 WlNDOWPROP

The function to access or add to any property of a window's
property list is WIliDOVPROP.
(WIN~PR0P window property <value>)

When you use WIKDOWPROP with only two arguments - window
and property - it returns the value of the window's property.
When you use wIKOOVPROP with all three arguments - window,
property and value - it sets the value the window's property to
the value you inserted for the third argument.

For example, consider the window, NY WINDOW, created using
(CREATEW). TITLE and REGION are both properties. Type
(ilI*~PW :.uI~ `TITLE)

and the value of MY.WlNDOW's TITLE property is returned,
"THIS 15 MY OWN WINDOW". To change the title, use the
WINDOWPROP function, and give it the window, the property
title, and the new title of the window.
(wIK~PW ~.uI~ `TITLE ùP FIRST ilIK~ù)
automatically changes the title and automatically updates the
window. Now the window looks like Figure 27.2.

27.1 w1N00WS AND REG~NS

WINDOWS

7ùt'WINDOWfROP NV WINDOW TITLE)
IS NV OWN WINDOW"

s.(WINDOWPROP NY.WlNDOl4 TITLE `ùQY FIRST WINDOW")
THIS IS M\' OWN WINDOW"
4'.

FigUre 27.2. TITLE is a Window Property

Altering the region of the window, NY. VINDOV, is also be done
with vINDOWPROP, in the same way you changed the title.
(Note: changing either of the first two numbers of a region
changes the position of the window on the screen. Changing
either of the last two numbers changes the dimensions of the
window itself.)

27.1.3 Getting windows to do things
Four basic window properties will be discussed here. They are
CURSORINFN, CURSOROUTFN, CURSORffOVEDFN, and
BUTTONEVENTFN.

A function can be stored as the value of the CURSORlNFN
property of a window. It is called when the mouse cursor is
moved into that window.

Look at the following example:

(1) First, create a window called MY.WlNDOW. Type:
(SETQ P.WINDQW
(CREATEI

(cREATERE6Ia 200 200 200 200)
"THIS WIllDOW WILL IREMlù))

This creates a window.

(2) Now define the function SCREAMER. It will be stored on the
property CURSOR1NFN. (Notice that this function has one
argument, WlNDOWNAME. All functions called from the
property CURSOR1NFN are passed the window it was called from.
So the value of MY. WINDOW is bound to WlNDOWNAME. When
it is called, SCREAMER simply rings bells.
(DEFINœQ (ScREMER (WIK~~E)
RIilBELLS)

PROlPTPRIlT TAT - IT WDRFSI")

RIKBELLS)))

(3) Now, alter that window's CURSORINFN property, so that the
system calls the function SCREAMER at the appropriate time.
Type:

WlNDow5 AND REGIONS 273

WINDOWS

(WIN~PRoP P.wINI;0II `cuR~RIafù
(F~IIk:TIK IR~R))

(4) Affer this, when you move the mouse cursor into MY.WlNDOW,
the CURSORINFK property's function is called, and it rings beJls
tvvice.

CURSORINFN is one of the many window properties that come
with each window - just as REGION and TITLE did. Other
properties include:

CURSOROUTFN The function that is the value of this property is executed when
the cursor is moved out of a window;

CURSORMOVEDFN the function that is the value of this property is executed when
the cursor is moved while it is inside the window;

BUTTONEVENTFN the function that is the value of this property is executed when
either the Ieff or middle mouse buttons are pressed (or released).

Figure 27.3 shows MY.WlNDOW's properties. Notice that the
CURSORINFK has the function SCREAMER stored in it. The
properties were shown in this window using the function
INSPECT. INSPECT is covered in Chapter 32.
. . ` 1 ù
GREEN NIL

HI NOo'rtENTR'[FN O liE. TT'( PRObES
PRfllESS NIL
`,`181)ROER 4
NEWREL'I)NF4 NIL

`NTITLE ùTHIS `ffiINDOW `tILL .QCREAn!"
MOlEfN NIL
CLOSEFN NIL
HORIZOCROLL'.yIND1)',t NIL
"ER1L'ROLLNINoO'ff NIL
c.u'ROLLFN NIL
H)RI=J-'cRlLLREG NIL
":`ERTSCR)LLREU NIL
USERDATA NIL
E!'!TENT NIL
REOH4PEFN NIL
REPAINTFN NIL
L'URSORttOvEDFN NIL
CURSOROUTFN NIL
CURSORINFN SCCE'ùThER
RIGHTBUTTONFN NIL
BU1FONEVENTFN TOTOPU
REG 12J0 "L)9 ùJ~ `36!
SavE (BITMAP~ùø3,1jo52ø
NE~('t (WIflD1)'-'1j55,1'lj'..ù8
DSP ~5TRE>M\,ù~ùF,jjjj~4

Figurù 27.3. Inspeaing MY.wlNDow for MouseRelated Window Properties
You can define functions for the values of the properties
CURSOROUTFK and CURSORMOVEDfN in much the same way as
you did for CURSORINfN. The function that is the value of the
property BUTTOHEVENTFN, however, cab be specialized to
respond in different ways, depending on which mouse button is
pressed. This is explained in the next section.

27.1.3.1 BUtrONœVENTFN

BUTTONEVENTFK is anothqr property of a window. Tho function
that is stored as tflù valuù of this property is called when tho
mouso is insidù tho window, and a mouso button is pressed. As
an examplù of how to usù iL type:

27A ~N00wS ANO REGIONS

witurows

(wI~PKP :.ilIK~ `euTTW"EKTtr
(F~TI5 ScREAùER))

When the mouse cursor is moved into the window, bells will ring
because of the CURS0RlNFN, but it will also ring bells when
either the Jeff or middle mouse button is pressed. Notice that
the right mouse button functions .5 it usually does, with the
window manipulation menu. If only the left button should
evoke the function SCREAMER, then the function can be written
to do just this, using the function MOUSESTATE, and a form that
only NOUSESTATE understands, ONLY. For example:
(DEFIKEQ

(SCRElERZ WIK~)
(if ESTATE (aLY LEFT))
thùa (RIKBœLLS))))

In addition to (ONLY LEFT), MOUSESTATE can also be passed
(ONLY MIDDLE), (ONLY RIGHT) or combinations of these
(e.g. (OR (ONLY LEFT) (ONLY MIDDLE))). You do not need
to use ONLY with MOUSESTATE for every application. ONLY
means that that button is pressed and no other.
If you do write a function using (ONLY RIGHT), be sure that
your function also checks position of the mouse cursor. Even if
you want your function to be executed when the mouse cursor is
inside the window and the right button is pressed, there is a
convention that the function DOVINDOWCOM should be executed
when the mouse cursor is in the title bar or the border of the
window and the right mouse button is pressed. Please program
your windows using this tradition! For more information, please
see the Intertisp-D Reference Manual, Volume 3, Chapter 28,
Pages 7 and 28.

Please refer to the Intertisp Reference Manual, Volume 3,
Chapter 28, for more detail and other important functions.

27.1.4 Looking at a window's prOperties
INSPECT is a function that displays a list of the properties of a
window, and their values. Figure 27.3 shows the INSPECT
function run with MYùWINDOV. Note the properties introduced
in CREATEW: WBORDER is the window's border, REG is the
region, and WTITLE is the window's title.

27.2 Regions

A region is a record, with the fields LEFT, BOTTOM, WIDTH, AND
HEIGHT. LEFT and BOflOM refer to where the bottom leff hand
corner of the region is positioned on the screen. WIDTH and
HEIGHT refer to the width and height of the region.
CREATERE6ION creates an instance of a record of type REGION.
Type:

(SETO ~.RE6Ia (CREATERESIl 15 loo 200 450))

WINDOWS AND REGIONS 275

REGIONS

to create a record of type REGION that denotes a rectangle 200
pixels high, and 450 pixels wide, whose bottom leff corner is at
position (15, 100). This record instance can be passed to any
function that requires a region as an argument, such as
CREATEV, above.

a,. WlN00WS ANO REGIONS



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28. WHAT ARE MENUS?

While Interlisp-D provides a number of menus of its own (see
Section 7.1, Page 7.2), this section addresses the menus you wish
to create. You will learn how to create a menu, display a menu,
and define functions that make your menu useful.
Menu's are instances of records (see Chapter 24). There are 27
fields that determine the composition of every menu. Because
Interlisp-O provides default values for most of these descriptive
fields, you need to familiarize yourself with only a few that we
describe in this section.

Two of these fields, the TITLE of your menu, and the ITEMS you
wish it to contain, can be typed into the InterlispùD Executive
window as shown below:

NIL

33'(.ETO MY. MEN (cRE"'TE ME/lb
TiTLE ,.PLE~~SE CHCio8œ ONE OF THE
ITEMS"

ITEMS (0,LlIT NE,T-l)UE;STION
NE;~T-TOPIL SEE-TOPIC;5'JJJ
,rMENU!,#c4, ij'ù:'3jH

Figure 28.1. Creating a menu

Note that creating a menu does not display it. MY.MENU is set to
an instance of a menu record that specifies how the menu will
look, but the menu is not displayed.

28.1 Displaying Menus

Typing either the MENU or ADDNENU functions will display your
menu on the screen. MENU implements pop-up menus, like the
Background Menu or the Window Menu. ADDMEHU puts menus
into a semi-permanent window on the screen, and lets you select
items from it.

(MENU MENU POSITION) pops-up a menu at a particular
position on the screen.
Type:

(*EKU MY.ffI KIL)

to position the menu at the end of the mouse cursor Note that
the POSITION argument is NIL. In order to go on, you must
either choose an item, or move outside the menu window and

WHAT ARE MENUS' 281

DISPLAYING MENUS

press a mouse button. When you do either, the menu will
disappear. If you choose an item, then want to choose another,
the menu must be redisplayed.

(ADONENU menu window position) positions a permanent
menu on the screen, or ;n an existing window.

Type:

(ADlEKU P.*EI)

to display the menu as shown in Figure 28.2. This menu will
remain active, (will stay on the screen) without stopping all the
other processes. Because ADONEliU can display a menu without
stopping all other processes, it is very popular in users programs.
If window is specified, the menu is displayed in that window. If
window is not specified, a window the correct size for the menu
is created, and the menu is displayed in that window.
If position is not specified, the menu appears at the current
position of the mouse cursor.

NE..TQùUESIlCN

3EEToPIC> .
.

Figure 28.2. A Simple Menu, displayed with AooNriU.

28.2 Getting Menus to DO Stuff
One way to make a menu do things is to specify more about the
menu items. Instead of items simply being the strings or atoms
that will appear in the menu, items can be lists, each list with
three elements. (See Figure 28.3.) The first element of each list is
what will appear in the menu; the second expression is what is
evaluated, and the results of the evaluation returned, when the
item is selected; and the third expression is the expression that
should be printed in the Prompt window when a mouse button is
held down while the mouse is pointing to that menu item. This
third item should be thought of as help text for the user. If the
third element of the list is NIL, the system responds with "Will
select this item when you release the button".

JGJ WHAT AR5 MENUS?

GErn~ MENUS TO DO STUFF

NIL

17+(SETQ Nv.MENU2 (SRœATE MENU

TITLE "PLEASE LHOOSE ONE OF TflE ITEMS"
I~,EMS `(VQUIT
(PRINT "STOPPEO" \
"LHOOSE THIS TO 5O~ù'','

(NE\T-QUESTIOH

(PRINT "HERE IS TME NE.'\'T QLlœSTIOH .
ùu'HOOSE THIS TO ~E lSKED THE NE."T QUESTION"',

iNE!~T-TOPIL

(PRINT ùùHERE IS THE NE'~T TOPIL .
"C.HOOSE THIS TO KOvœ OH TO THE NE'\T SueJELT" `1

(SEE-TOPICS

(PRINT "THE FOLLOYIN6 HA'\E NOT e.EEN LœARNEO"',
*CHOOSE THIS TO SEE THE TOPICS NOT YET LErtRNEO"l `ii
ù~~MENU,'#5~. `.5~5j
1qL(cl&MENL MY. MEtlU:'
,rNIN&El'~~~4', 175350
14

Firnre 28.3. Creating a menu that will do things, then displaying it with the
funttion ADDNEHU

Now when an item is selected from KY.KENU2, something will
happen. When a mouse button is held down, the expression
typed as the third element in the item's specification will be
printed in the Prompt window. (See Figure 28.4.)

NE7.T.'JUE'=TlE'r~J
SEE-TOPIC'

Fiqrnre 28.1. Mouse Button Held Down While Mouse Cursor SeIe~
NEXT-QUESTIoN

When the mouse button is released (i.e. the item is selected) the
expression that was typed as the second element of the item's
specification will be run. (See Figure 28.5.)

Y-'OUE'Tl"N
`EETOPlr"'
"HERE IS THE NEXT ilUETION.
Figure 28.5. NEXT-QUESTION Selected

WHAT ARE MENUS' 283

GEHlNG MENUS TO DO STUFF

28.2.1 _ The WHENHœLDFN _ and WNENSELœCTEDFN fields of a _ menu
Another way to get a menu to do things is to define functions,
and make them the values of the menu's WHENHELDFN and
WHENSELECTEDFN fields. As the value of the WHENHELDFN
field of a menu, the function you defined will be executed when
you press and hold a mouse button inside the menu. As the
value of the WHENSœLœCTEDFN field of a menu, the function you
defined will be executed when you choose a menu item. This
example has the same functionality as the previous example,
where each menu item was entered as a list of three items.

As an example, type in these two functions so that they can be
executed when the menu is created and displayed:
(DEFIKEQ LœCTED

(SELEcfQPiNTEENNUJSENHENHELO (ITEl.SœLECTED a:. FROM BUTT:. PRESSED)
QUIT (PROMPTPRIKT ùcHOOSE THIS TO sToPù))

NEXT-QUESTION (PROMPTPRIKT CHOOSE THIS TO BE ASKED TNE NEXT QUESTION-))
NEXT-TOPIC PROMPTPRINT ùCHOOSE THIS TO MOO,E a TO THE NEXT SUBUIECTù))
SEE-TOPICS PROMPTPRINT ùCHDOSE THIS TO SEE THE TOPICS NOT YET LœARNEDù))
ERROR (PROM TPRIKT NO liTCH FOUNDù)))))

(DEFINEQ WENSELECTED (ITEM.SELECTED MENU. FROM 8UTT:.PRESSED)
QUIT (PRINT ùSTOPPEDù))

NEXT-QU RINT "HERE IS THE NEXT QUESTION...))
NEXT-T ùHERE IS THE NEXT TOPIC. .
- PICS PRINT ùTHE FOLLONIK HAVE NOT 8EEN LEARNED. ..ù

ERROR (PRONFTPRINT NO liTCH FOUND)))))

Now, to create the menu, type:
(SETQ MY.NE:3 (CREATE NE:
TITLE ùPLEASE CHOOSE :E OF THE ITEMSù
ITEK `(QUIT NEXT-QUESTION NEXT-TOPIC SEE-TOPICS)
NHENHELDFN (FUNCTIK MY.NENU3.NHENHELD)
fflENSELECTEDFN (FUNCTION NY, .MENU3 .fflENSELECTED)))

Type

(ADDMENU MY.MENU3)
to see your menu work.

NOW, due to executing the WHœNNELDFN function, holding
down any mouse button while pointing to a menu item will
display an explanation of the item in the prompt window. The
screen will once again look like Figure 28.4 when the mouse
button is held when the mouse cursor is pointing to the item
NEXT-TOPIC.

Now due to executing the WHENSELECTEDFN function, releasing
the mouse button to select an item will cause the proper actions
for that item to be taken. The screen will once again look like
Figure 28.5 when the item NEXT-TOPIC is selected.
The crucial thing to note is that the functions you defined for
WHENHELDFN and WHENSELECTEDFN are automatically given
the following arguments:

(t) the item that was sùlected, ITEM. SELECTED;
(2) the menu it was selected from, MENU. FROM;
(3) and the mousù button that was pressed BUTTON PRESSED.
Hotù: thesù functions, *Y.NENU3.fflENflELO and
ffY.KEKUJ.ilHEKSELCTEO, wùre quoted using FUKCTIOK
instead of QUOTE both for program rùadability and so that the

21.1 ~YAR1".NUs?

GETTlMG MENUS TO 00 STUFF

compiler con produce foster code when the program is compiled.
It is good style to quote functions in Intertisp by using the
function FUNCTION instead of QUOTE.

28.3 Looking at a menuùs fields
INSPECT is a function that displays a list of the fields of a menu,
and their values. The Figure 28.6 shows the various fields of
NY .NENU3 when the function (INSPECT NY ùNENU) was called.
Notice the values that were assigned by the examples, and all the
defaults.

\JN"PELT NY liENl./3ùùl
ùl1IHDU'wJ#'1, 54ùscj

NENllPECICNB1:TTi=fl o

Imrni';E (ù!VINDLlrtù$#b1.lø5lSjl

ù t1)UlT HEù~T-LlùL'E'TI1=1N `ù`-Ti'iFl'ù ET
ù MENUPOffoù'

ù ANUEAFF'ETFLL: NIL

ffENUEQHT i:FclNTPc:::cf IpTclFt -a
TITLE `ùPLEAL'E CHil.l `HE ,iF THE ITE
ù ffEHlJoFF6ET A
LECTEDFN fly flEflJ,ù h.ùrtEf:EL.FCTEœl

`1flE'flELDFH NV flEPlLl3 \ùrtEHHELJP
ù ENl)NHELoFH l:LFF'RCHPT

ù flENOFEEOe4l,'r.FLG NIL
Figure 28.6. The Fields of MY.MENU3

WHAT ARE MENUS' 285



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29. lilTMAPS

A bitmap is a retangular array of dots. The dots are called pixels
(for picture elements). Each dot, or pixel, is represented by a
single bit. When a pixel or bit is turned on (i.e. that bit set to 1), a
black dot is inserted into a bitmap. If you have a bitmap of a
floppy on your screen, (Figure Figure 29.1), then all of the bits in
the area that make up the floppy are turned on, and the
surrounding bits are turned off.

FLOPPY
(Ia b~JwP-
~`,5,,Bh

(t-:)o

Figure 29.1. Bitmap of a Floppy

BITNAPCREATE creates a bitmap, even though it can't be seen.
(BIfflPCRDTE width height)

If the width and height are not supplied, the system will prompt
you for them.

EDZTBN edits the bitmap. The syntax of the function is:
(EDITl bitmapname)

Try the following to produce the results in Figure 29.4:
l~SoETiQr:~rùB!sTHituPbB~I~PcRDTE eo 40))

To draw In the bitmap, move the mouse into the gridded section of the
bitmap editor, and press and hold the leff mouse button. Move
the mouse around to turn on the bits represented by the spaces
in the grid. Notice that each space in the grid represents one
pixel on the bitmap

To erase Move the mouse into the gridded section of the bitmap editor,
and press and hold the center mouse button. Move the mouse
around to turn off the bits represented by the spaces in the
gridded section of the bitmap editor.

To work on a different section Point with the mouse cursor to the picture of the actual bitmap
(the upper left corner of the bitmap editor). Press and hold the

BlTMAPS 291

BlTMAPS

Jeff mouse button. A menu with the singJe item, ttove will
appear. (See Figure 29.2.) Choose this item.

. .

Figure 29.2. Move the mou5e cursor to the Dtcture of the bitmap. Press and hold
the Iek mouse button. and the Move menu will appear

You will be asked to position a ghost window over the bitmap.
This ghost window represents the portion of the bitmap that you
are currently editing. Place it over the section of the bitmap that
you wish to edit. (See Figure 29.3.)

. .
.

. .

. ... .
.... I .

29.3. .. J=.. :. II.lI:.:;;. _ . .
f1ure Affer you choose move. yoU will be asked to position a ghost

window like this one. Position it by clicking the leff mouse button when the

ghost window is over the part of the picture of the bitmap you would like to edit.
To end the session 8ring the mouse cursor into the upper-right portion of the
window (the grey area) and press the center button. Select OK
from the menu to save your artwork.

29) .lY~

r'. alTMAps

.:: 5''iSETQ ffy IllNAP (I[TNAPcPEATE OR GO)'
j:y.IlfM&P osùt\
,A.BlTMAPlù6',1.q;ølO
58oi,EOIlBM my.IlTNAP\

- -
.

.
-A

fr.j:
`

= "''~
=
. ~.
.

. .

F~ure 29.4. Editing a Bitmap

BITBLT is the primitive function for moving bits (or pixels) from
one bitmap to another. It extracts bits from the source bitmap,
and combines them in appropriate ways with those of the
destination bitmap. The syntax of the function is:

(BITBLT sourcebitmap sourcelefl sourcebottom
destinationbitmap destinationleft destinationbottom width
height sourcetype operation texture clippIngregion)

Here's how it's done - using MY.BlTMAP as the sourcebitmap and
MY.WlNDOW as the destinationbitmap.'
(BITBLT rn.BITll4P NIL NIL

P.wIN~ NIL NIL KIL NIL `INPUT `REPuCE)

Note that the destination bitmap can be, and usually is, a
window. Actually, it is the bitmap of a window, but the system
handles that detail for you. Because of the IlLs (meaning "use
the default"), MY.BlTMAP will be BlTBLT'd into the lower right
hand corner of MY.WlNDOW. (See Figure 29.5.)

BlTMAPS 293

~17MAP5

98'(BITBLT KY Strap NIL NIL my ,1(10p,, FL `IL NIL HIL Tipil' P.œPLlfi

(~=l',

Figure 29.5. 9ITBLTng a Bitmap onto a Window

Here is what each of the SlTBLT arguments to the function
mean:

sourcebitmap the bitmap to be moved into the destinationbitmap
sourcelett a number, starting at O for the Jeff edge of the sourcebitmap,
that tells SITBLT where to start moving pixels from the
sourcebitmap. For example, if the leftmost 10 pixeis of
sourcebitmap were not to be moved, sourceleft should de 10
The default value is O.

sourcebottom a number, starting at O for the bottom edge of the
sourcebitmap, that tells BIT6LT where to start moving p1'xels
from the sourcebitmap. For example, if the bottom 10 rows of
pixels of sourcebitmap were not to be moved, sourcebottom
should be 10 The default value is O.

destinationbitmap the bitmap that will receive the sourcebitmap. This is offen a
window (actually the bitmap of a window, but Interlisp-b takes
care of that for you).

destinationleff a number, starting at O for the leff edge of the
destinationbitmap, that tells BITBLT where to start placing
pixels from the sourcebitmap. For example, to place the
sourcebitmap 10 pixels in from the Jeff, destinationleft should be
10. The default value is 0.

destinationbottom a number, starting at 0 for the bottom edge of the
destinationbitmap, that tells BITBLT where to start placing
pixels from the sourcebitmap. For example, to place the
sourcebitmap 10 pixels up from the bottom, destinationbottom
should be 10. The default value is 0.

width how many pixels in each row of sourcebitmap should be moved.
The samc amount of space is used in destinationbitmap to
receive the sourcebitmap. If this argument is NIL, it defaults to
the number of pixels from sourceleft to the end of the row of
sourcebitmap.

height how many rows of pixels of sourcebitmap should be moved. The
same amount of space is used in destinationbitmap to receive
thq sourtebitmap. If this argument is NIL, it defaults to the
number of row; from sourcebottom to tho top of the
sourcebitmap.

sourcetypù rofors to onù of throù ways to cofivùrt thù sourcebitmap for
writing. For now, just usù `INPUT.

29.ù o~ps

` ` ` ` ` ` ` ` ` ` ` ` ` `` ` `" ` ` ` ` ` ` ` ` ` ` ` ` `

OIlMAPS

operation refers to how the sourtebitmap gets BlTBLT'd on to the
destinationbitmap. `REPLACE will BLT the exact sourcebitmap.
Other operations allow you to AND, OR or XOR the bits from the
sourcebitmap onto the bits on the destinationbitmap.
texture Just use NIL for now.
clippingregion just use NIL for now.

Por more information on these operations, see the Interlisp-D
Reference Manual, Volume 3, Chapter 27, Page 14.

Sourcebitmap, sourceleft, sourcebottom, destinationbitmap,
destinationleft, destinationbottom, width and height are shown
in Figure 29.6.

Destination Bitmap
Source Bitmap
FLOPPY
tlcblffkUP'

3/S/Bh height

e./,o

width

Source leh. Source bottom. The "x y coordinates in
terms of the source (OOforthewhoiesource).

Destination Jeff, Dertination Bottom. The ,,x y"
coordinates in terms of the destination bitmap.
(00 to put the source bitmap in the Ieft bottom
corner of the dertination bitmap).

Figure 29.6. BITBLT'ed Bitmap of a Floppy

BITMAPS 295



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30. DlSPLAYSTREAMS

A displaystream is a generaJized "place to display". They
determine exactly what is displayed where. One example of a
displaystream is a window. Windows are the only displaystreams
that will be used in this chapter. If you want to draw on a bitmap
that is not a window, other than with BITBLT, or want to use
other types of displaystreams, please refer to the Interlisp-D
Reference Manual, Volume 3, Chapter 27.

This chapter explains functions for drawing on displaystreams:
DRAWLINE, DRAWTO, DRAVCIRCLE., and FILLCIRCLE. In
addition, functions for locating and changIng your curreAt
position in the displaystream are covered: DSPXPOSITIOH,
DSPYPOSITION, and NOVETO.

30.t Drawing on a Displaystream
Examples will show you how the functions for drawing on a
display stream work. First, create a window. Windows are
displaystreams, and the one you create will be used for the
examples in this chapter. Type:
(SETO EwPLE.wIN~ (CREATEI))

30.1.1 DRAWLlNE

DRAWL IRE draws a line in a displaystream. For example, type:
(DliVLIKE 10 IS loo 150 S ùIlERT ExMPLEwIN~)
The results should look like this:

Figure 30.1. The line drawn onto the displayrtream, ExAMPLEwlNDoW

DlSPLAYSTREAMS 30

DRAWING ON A DlSPLAYsTaE:M
The syntax of DRAWL1NE is

(Dli~IKE xl yl x2 y2 width opera tion stream ù)
The coordinates of the Jeff bottom corner of the displaystream
areOO.

xl and yl are the x and y coordinates of the beginning of the line;
x2andy2 are the ending coordinates of the line;
width isthe width of the line, in pixels

operation is the way the line is to be drawn. INVERT causes the line to
invert the bits that are already in the displaystream. Drawing a
line the second time using INVERT erases the line. For other
operations, see the Interlis~D Reference Manual, Volume 111,
Page 27.15.

stream is the displaystream. In this case, you used a window.

30.1.2 ORA~O

DRAWTO draws a line that begins at your current position in the
displaystream. For example, type:
(Dli~O 120 135 5 `IrvERT E~LE.*IH~)
The results should look like this:

Figuro 30.2. Another line drawn onto the displaystream, ExAMPLEùWlNDowù
The syntax of ORAWTO is

(oliilT0 x y width operation stream i)

The line begins at the current position in the displaystream.
x is the x coordinate of the end of the line;
y is they coordinate of the end of the line;
width is the width of the line

operation is the way the lino is to be drawn. INVERT causes the line to
invert the bits that aro already in tho displaystream. Drawing a
line the second time using INVERT erases the line. For other
operations, see the lnteHi~O Reference Manual, Volume Ill,
Page 27.15.

stream is the displaystreom. In this case. you used a window.

30.2 llPLAYSTQCANT

DRAW1NG ON A D15PLAr5~E~
30.1.3 DRAWClRCLE

DRAWCIRCLE draws a circle on a displaystream. To use it, type:
(0li~I~LE 150 100 so `(~RTICAL 5) KIL E~LE .VI~)
Now your window, EXAMPLE.WlNDOW, should look like this:

Flurù 30.3. The circle drawn onto the displaystream. EXAMPLE WINDOW
The syntax of DRAWCIRCLE is

(0li~IELœ centerx centery radius brush dashing stream)
centerx is the x coordinate of the center of the circle
centery is they coordinate of the center of the circle
radius is the radius of the circle in pixels

brush is a list.- The first- item of the list is the shape of the brush. Some
of your options include ROUND, SQUARE, and VERTICAL. The
second item of that list is the width ofthe brush in pixels.
dashing is a list of positive integers. The brush is "on" for the number of
units indicated by the first element of the list, "off" for the
number of units indicated by the second element of the list. The
third element specifies how long it will be on again, and so forth.
The sequence is repeated until the circle has been drawn.
stream is the displaystream. In this case, you used a window.

30.1.3.1 FlLLClRCLE

FILLCIRCLE draws a filled circle on a displaystream. To use it,
type:

(FILLCIRCLE 200 150 10 6liY~DE ExlPLE.wIli~)
EXAMPLE.WlNDOW now looks like this:

DlSPLAYSTREAMS 303
l

DRAWING ON A DISPLAYSTREAM

Figure JO.t A filled circle drawn onto the displaystream, EXAMPLE WINDOW
The syntax of FILLCIRCLE i5

(FILLCIRCLœ centerx centery radius texture stream)
centerx is the x coordinate of the center of the circle
centery is theycoordinate of the center of the ci rcle
radius is the radius of the circle in pixels

texture is the shade that will be used to fill in the circle. Interlisp-D
provides you with three shades, WHlTESHADE, BLACKSHADE,
and GRAYSHADE. You can also create your own shades. For
more information on how to do this, see the Interlisp-D
Reference Manual, Volumelll, Page 27.7.

stream is the displaystream. In this case, you used a window.
There are many other functions for drawing on a displaystream.
Please refer to the Intertisp-D Reference Manual, Volume 111,
Chapter 27.

Text can also be placed into displaystreams. To do this, use
printing functions such as PRIffl and PRIN2, but supply the
name of the displaystream as the "file" to print to. To place the
ten in the proper position in the displaystream, see 5ection 30.2,
Page 30.4.

30.2 _ Locating _ and _ Changing _ Your _ Position _ in _ a _ Displaystream
There are functions provided to locate, and to change your
current position in a displayitream. This can help you place text,
and other images where you want them in a displaystream. This
primer will only discuss three of these. There are others, and
they can be found in the lnterlis~D Reference Manual, Volume
Ill, Chapter 27.

30.4 0lSPLAY$TREA~

r.

LOCATING AND CHANGING YOUR POSITION IN A DISPLAYSTREAM

30.2.1 DSPXPOSlTlON

DSPXPOSITION is a functiOn that will either change the current
x pOsition in a displaystream, or simply report it. To have the
function report the current x position in EXAMPLE.WlNDOW,
type:

(OSP*PoSlTIoN NIL EXlPLE .ilINDON)

DSPXPOSITION expects two arguments. The first is the new x
position. If this argument is NIL, the current position is not
changed, merely reported. The second argument is the
displaystream.

30.2.2 DSPYPOSlTlON

DSPYPOSITION is an analogous function, but It changes or
reports the current y position in a displaystream. As with
DSPXPOSlTlON, If the first argument Is a number, the current y
position will be changed to that position. If it is NIL, the current
position is simply reported. To have the function report the
current y position in EXAMPLE.WlNDOW, type:

(DSPYROSITIoN NIL ExlPLE.WIK-~)

30.2.3 MOVETO

The function NOVETO always changes your position in the
displaystream. It expects three arguments:
(~-ET0 xystream)

x is the new x position in the display stream
y is the new y position in the display stream

stream is the display stream. The examples so far have used a window.

DISPLAYSTREAMS 30 5



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Date: 19 Dec 91 16:30 PST
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31. FONTS

This chapter explains fonts and fontdescriptors, what they are
and how to use them, so that you can use functions requiring
fontdescriptors

You have already been exposed to many fonts in Interlisp-D. For
example, when you use the structure editor, DEdit, (See Section
11.3.), you noticed that the comments were printed in a smaller
font than the code, and :hat CLlSP words (See Section 13.1, Page
13.1.) were printed in a darker font than the other words in the
function. These are only -me of the fonts that are available in
Interlisp-D.

In addition to the fonts that appear on your screen, Interlisp-D
uses fonts for printers that are different than the ones used for
the screen. The fonts used to print to the screen are called
DlSPLAYFONTS. The fonts used for prining are called
INTERPRESSFONTS, or PRESSFONTS, depending on the type of
printer.

31.1 What makes up a FONT?

Fonts are described by family, weight, slope, width, and size.
This section discusses each of these, and describes how they
affect the font you see on the screen.

Family is one way that fonts can differ. Here are some examples
of how "family" affects the look of a font:

CLASSIC This family makes the word "Able" look like this: Able
MODERN This family makes the word "Able" look like this: Able
TERMINAL This family makes the word "Able" look like this: Able
Weight also determines the look of a font. Once again, "Able"
will be used as an example, this time only with the Classic family.
A font's weight can be:
BOLD and look like this: Able
MEDIUM or REGULAR and look like this: Able
The slope of a font is italic or regular. Using the Classic family
font again, in a regular weight, the slope affects the font like
this:

ITALIC looks like this: A file
REGULAR looks like this: Able

FONT5 311
1

WHAT MAKES UP A FONT?

The width of a font is called its "expansion". It can be
COMPRESSED, REGULAR, or EXPANDED.

Together, the weight, slope, and expansion of a font specifies
the font's "face". Specifically, the face of a font is a three
element list:

(weight slope expansion)

To make it easier to type, when a function requires a font face as
an argument, it can be abbreviated with a three character atom.
The first specifies the weight, the second the slope, and the third
character the expansion. For example, some common font faces
are abbreviated:

MRR This is the usual face, MEDIUM, REGULAR, REGULAR;
MlR makes an italic font. It stands for: MEDIUM, ITALIC, REGULAR;
BRR makes a bold font. The abbreviation means: BOLD, REGULAR,
REGULAR;

BIR means that the font should be both bold and italic. BIR stands
for BOLD, ITALIC, REGULAR.

The above examples are used so oflen, that there are also more
mnemonic abbreviations for them. They can also be used to
specify a font face for a function that requires a face as an
argument. They are:

STANDARD This is the usual face: MEDIUM, REGULAR, REGULAR. It was
abbreviated above, MRR;

ITALIC This was abbreviated above as MR, and specifies an italic font;
BOLD of course, makes a bold font. It was abbreviated above, BRR;
BOLDlTALIC means that the font should be both bold and italic: BOLD,
ITALIC, REGULAR. It was abbreviated above, BlR.
A font also has a size. It is a positive integer that specifies the
height of the font in printers points. A point is, on an 1108
screen, about 1/72 of an inch. On the screen of an 1186, a point is
1/80 of an inch. The size of the font used in this chapter is 10. For
comparison, here is an example of a TERMINAL, MRR, size 12
font: Able.

31.2 Fontdescriptors, and FONTCREATE
For InterlispùD to use a fort, it must have a fontdescriptor. A
fontdescriptor is a data type in InterlispùD that that holds all the
information needed in order to use a particular font. When you
print out a fontdescriptor, it looks like this:
[fKTDEIRIPToRjùiù,ùs~ù0

Fontdescriptors are created by the function F0NTCREATE. For
example,

(F~TCREATE `flEL~1lCA 12 `~o)

J:

31.2 FOflff

FONTDESCRlPTORS, AND F0NTCREAlE

creates G fontdescriptor that, when used by other functions,
prints in HELVETIEA BOLD size 12. Interlisp-D functions that
work with fonts Gxpect a fontdescriptor produced with the
FONTCREATE function.
The syntax of FONTCREATE is:
(F0KTCREATE family size face)

Remember from the previous section, face is either a three
element list, (weight slope expansion), a three character atom
abbreviation, e.g. MRR, or one of the mnemonic abbreviations,
e.g. STANDARD.

If FONTCREATE is asked to create a fontdescriptor that aJready
exists, the existing fontdescriptor is simply returned.

31.3 Display Fonts - Their files, and how to find them
Display fonts require files that contain the bitmaps used to print
each character on the screen. All of these files have the
extension .DlSPLAYFONT. The file name itself describes the font
style and size that uses its bitmaps. For example:
~ERK12.DISPUYFRT

contains bitmaps for the font family MODERN in size 12 points.
Initially, these files are on floppies. The files that are used most
offen should be copied onto a directory of your hard disk or
fileserver. Usually, this directory is called FONTS.
Wherever you put your .DISPLAYFONT files, you should make this
one of the values of the variable DISPLAYFONTDIRECTORIES.
Its value is a list of directories to search for the bitmap files for
display fonts. Usually, it contains the "FONT" directory where
you copied the bitmap files, the device (FLOPPY), and the
current connected directory The current connected directory is
specified by the atom NIL. Here is an example value of
DISPLAYFONTDIRECTORIES:

. - 11
NIL

r~':PI:='pL"'yFnNTDIP,ECTBP,IES

i;!Iùo= ` . =PFIL -FnNT~." (D.~fr):!.LIT'.PFIL
fFLnPF"')- NIL!i
9!ù

Figure 31.1. A valueùfor the atom DISFLAYFONTDIRECTORIES When
looking for a .DiSPl.AYFONl file. `he system will check the F0NT directory on the
hard disk. then the top level directory on the hard disk, then the floppy. then the
current connected dir8rtory

FONTS 313

INTERPRESS FONT5 - THEIR FILES, AND HOW TO FIND THEM

31.4 _ Interpress _ Fonts _ - _ Their files, _ and _ how _ to _ find _ them
Interpress i5 the format that is used by Xerox laser printers. These
printers normally have a resolution that is much higher than that
of the screen: 300 points per inch.

In order to format f,Ies appropriately for Output on such a
printer, Interlisp must know the actual size for each character
that is to be printed. This is done through the use of width files
that contain font width information for fonts in Interpress
format. Initially, these files (with extension .WD) are on floppies.
The files should be copied onto a directory of your hard disk or
fileserver.

For Interpress fonts, you should make the location of these files
one of the `values of the variable
INTERPRESSFOliToIRFcTORIES. Its value is a list of directories
to search for the font viidths files for Interpress fonts. Here is an
example value of INTERPRE5SFONTD1RECT0R1ES:
. 11
1'lIL

i?IbdTEFPfiETù=:FnN7PIP:EcTnRIœ~,~
.i=~~.~
j:~,~

Figure 31.2. A value for the atom INTERPREssFoNTDIREcToRIEs
When looking for a font widths file for an Interpress font, Interlisp-D will cne~
the hard disk.

31.5 Functions for Using Fonts

31.5.1 F0NTPR0P Looking at Font Properties
It is possible to see the properties of a fontdescriptor. This s
done with the function FONTPROP. For the following examples,
the fontdescriptor used will be the one returned by the function
(DEFAULTFONT `DISPLAY). In other words, the
fontdescriptor examined will be the default display font for the
system.

There are many properties of a font that might be useful for you.
Some of these are:

FAffILY To see the family of a font descriptor, type:
(FKTPliP (DEFAllLTFoIT `DISPLAY) `f~ILY)

SIZE As above, this is a positive integer that determines the height of
the font in printer's points. As an example, the SIZE of the
current default font is:

31ù ~n

FUNCTIONS FOR USING FONTS

. 11
NIL

Gi,ù(FnNTPROP (DEF~ULTFONT PI~~PLAY)
`.,ù,:`IZE\
is,

Figure 31.3. The value of (he font property SIZE of the default font
ASCENT The value of this property is a positive integer, the maximum
height of any character in the specified font from the baseline
(bottom). The top of the tallest character in the font, then, will
be at (BASELINE # ASCE[VT - l). For example, the ASCENT of the
default font is:

ù 1 11
NIL

Aù 4' ,. I!ùFnNTPROP if OfF"' ULTFnNT ùPI~,~PL~","!'
`~e-rENT:!
q.-

A,5~:

Figure 31.& The value of the font property ASCENT of the default font
DESCENT The DESCENT is an integer that specifies the maximum number
of points that a character in the font descends below the
baseline (e.g. letters such as "p" and "g" have tails that descend
below the baseline.). The bottom of the lowest character in the
font will be at (BASELINE - DESCENT). To see the DESCENT of the
default font, type:

(FOkTPROP (DEfAULTFKT `DISPUY) `DESr:œKT)
HEIGHT HE IGHT is equal to t'DESCENT-ASCENT).
FACE The value of this property is a list of the form, (weight slope
expansion). These are the weight, slope, and expansion
described above. You can see each one separately, also. Use the
property that you are interested in, VEIGHT, SLOPE, or
EXPANSION, instead of FACE as the second argument to
FONTPROP.

For other font properties, see the Interlisp-D Reference Manual,
VolumeIll, Pages 27.27 - 27.28.

31.5.2 5TRlNGWlDTH

It is offen useful to see how much space is required to print an
expression in a particular font. The function STRINGVIDTH
does this. For example, type:

(STRIKWIDTH "NV thera!ù (`L'NTcREATœ `UCli 10 `STAKDARD))
The number returned IS how many leff to right pixels would be
needed if the string were printed in this font. (Note that this

F0NTS 31 S

FUNCTIONS FOR USING FONTS

doesn't ju5t work for pixels on the screen, but for all kinds of
streams. For more information about streams, see Chapter 30.)
Compare the number returned from the example call with the
number returned when you change GACHA to TlMESROMAN.

31.5.3 DSPFONT - Changing the Font in One Window
The function DSFF0NT changes the font in a single window. As
an example of its use, first create a window to write in. Type:
(SETQ ~.FoNT.WINnaN (CttEATE*))

in the Interlisp-D Executive window. Sweep out the window. To
print something in the defau!t font, type:
(PRINT `HELLO N'f'.FO*T.wIN~)

in the Interlisp-D Executive window. Your window,
MY. FONT.WlNDOW, will lOOk sOmething like this:

HELL

Figure 31.5. HELLO, printed with the default font in MY.FONT.WINOOW
Now change the font in the window. Type:
(DSPF0NT (FONTCREATE `HELVETICA 12 `SOLD) *T.FONT.WINDaN)
in the Interlisp-D Executive window. The arguments to
FONTCREATE can be chang~-'d to create any desired font. Now
retype the PRINT statement, and your window will look
somethinglikethis:

- .
HIL

.q.'~;, PSPFnNT (FnNTrRE~TE `HEL";'ET1L~
1:'ù ùBnLPt

M'tù.FnNT.vINPnWj

l:FnNTPE~1'RIpTnfl~#?.~,. 1-'ù 14 "4
3~~iPR[NT `HELLO MY.fnflr.l]INoniff)
HELLO

Flgurù 31.L The font iiiMY FONT WINDow, changed
Notice the font has been changedl

J.

31.6 FONtt

FUNfll0NS FOR USING F0Nff
31.5.4 _ Globally Changing _ Fonts _________________________
There is a library package to globally change the fonts in all the
windows. To use it, first load BlG.DCOM. (See Section 8.6, Page
8.4 for how to load a file.)

To change fonts in 311 windows using the package BlG.DCOM,
type

(KE*Fo*T <ke~o~>~

There are four keywords for size of fonts to specify. They are
HUGE, BIG, STANDARD, and MEDIUM. For example:
(*E*FKT `BIG)

sets the fonts in ALL the windows to be a larger size. Note: this
package changes the fonts everywhere, including the editor
window and system merius It is particularly useful to change the
size of the font for demos.

31.5.5 Personalizing Your Font Profile
Interlisp-D keeps a list of default font specifications. This list is
used to set the font in all windows where the font is not
specifically set by the user (Section 31.5.3). The value of the atom
FONTPROFILE is this list. (See Figure 31.7.)

A FONTPROFILE is a list of font descriptions that certain system
functions access when printing output. It contains specifications
for big fonts (used when pretty printing a function to type the
function name), small fonts (used for printing comments in the
editor), and various other fonts.

F0NTS 317
I

FUNCTIONS FOR USING FONTS

- . . .
43-FJtlTPRUF[LE

l!' PœF"ULTFClFlT i ,.` `,`cH4 LLT;
;ù`,`~LHk aj
t'TEPMINk'L Sij

`.`BlLPF'lNT :` (HœLlETIl='n' Jo E,PP.;1
`lHœL':'œTIC" L=' BPP,i
`llJPEPtl in' ~FF)

`,`LITTLœFC'NT 3 ;ttEL'ù?ErIC" ,3,'
iHE - c 1,1p;

i.'BIC-FCNT ~ llnof - hlIP"i
`HE 1.=' BpP.i
`.`HEL'ù'ET .- it' epp:'
`.`IrtoPEPrl -
(J\EPFONT 6oLOFElNT
(C.lMllENTFANT LITTLœFi)r'T
`.`L"M0P~"FL1flT 61 eFol~! T
i.'.='r'3TEMFeNT',i

`.`CLI~T'~PFUNT BC'LOF')1'lf
i.' CH,,N'3'EF')HT

i,'PPETT\'1?.Cit1F(ji~T Bl.lLC'FllltlT
i.'FCPlTL DEf"'ULTFEitiT"
,`Fel'JT"ù 6cLDFclllT;
t.'FCt'1T3 LITTLEFcifùlT;
`.f1tlTJ BlCF(.'r'lT',i

i.'FElNT~ S `,`HEL',"ETl;,,' 10 81P'.
`lHEL'y'ETlc,, `3 61A)
CfillDEPN a 81P:;

t.'FilNTB 6 `HEL";'ET16~ 10 8RP',i
`.`HEL'."ET1C~ L'~ BAA"'
llPEPN 3 BAA]
Fi)NT7 ? c"'i'.H~ 1:ù''
:e-"Ln~ 1:ù!'

`.TERMItl,'L 1;''.,,!,
5a,

Figure 31.7. The value of the atom FONTPROFlLE

The list is in the form of an a5sociation list. The font class names,
(e.g. DEFAULTFONT, Or SOLDFONT) are the keywords of the
association list. When a number follows the keyword, it is the
font number for that font class.

The lists following the font class name or number are the font
specifications, in a form that the function FONTCREATE can use.
The first font specification list affer a keyword is the specification
for printing to windows. The list, (GACHA 10), in the figure
above is an example of the default specification for the printing
to windows. The last two font specification lists are for Press and
Interpress file printing, respectively. For more information, see
the lnterlis~D Reference Manual, Volume 3, Chapter 27.

Now, to change your default font settings, change the value of
the variable FONTPROFILœ. lnterlis~D has a list of profiles
stored as the value of the atom FONTDEFS. Choose the profile to
use, then install it as the default FONTPROFILE.
Evaluate the atom FONTDEFS and notice that each profile list
begins with a keyword. (5ee Figure 31.8.) This keyword
corresponds to the size of the fonts included. BIG, SMALL, and
STANDARD are some of :he keywords foT profiles on this list -
SMALL and STANDARD appear in Figure 31.8.

31.8 F0Htt
1

FUNCTl0NS F0R USING F0NTS
[[SMALL cFONTPRQFlLE
(DEFALlLTFONT l (TERMINAL
8)

tùUaCHA 8)
`TERmIHAL 8))

(8OLPFL~NT (Mi!OERtt 3 BRR)
\HELY'FTIL" 6 BRR)
ltl\flEfiH 8 BRfi))
1 LITTLEFCNT ~`ù
(hllCiERN 8 MIR)
lHEL'v'ETIu'"' 8 MIR)
iMCiPERN ,q, MIR))
(TIN\FONT a IhllOERN a)
to,'F..H" ~)
hll!nEr.H 6

iBIrFnNT j (;`,nPF~N 1P BFR)
`!HE".'LETIcA lG BRF)
hlrPEF;11 16 ~RP)

iTE.\TFrNT r `.,6LM"~'.lC 13)
`iTIhlE:'Pnn,,"N In)
i.LL~.~:IC lot)
!`TE\TBnLPFnNT
tCL~~CIC 16 Bfifi.,'
~TIME.';RL1MAN
1P BfiR)

tP:LAc.~,Ir 16 BRR]
[cT~NPARP (FDNTPrnPiLE
(PEF"ULTFnNT 1

Figure 31.8. Part of the value of the atom FONTDEFS
To install a new profile from this list, follow the following
example, but insert any keyword for BIG.

To use the profile with the keyword BIG instead of the standard
one, evaluate the following expressioh
(FOMTSET `BIG))

Now the fonts are permanently replaced. (That is, until another
profile is installed.)

FONIS 319
1

r.

FUNCTIoNS FOR USING F0NTS

[[SMALL cFONTPROFlLE
(OEFALlLTPONT i (TERMINAL
6)

\*U'acHA 6)
tùTERmIHAL 6))

(SOLPFL~NT (M'1.OERN 6 BRR)
tHELY'FTIL"' 6 BRR)
Ihll!OER'H qL BRR))
i LITTLEFCNT ~"
(MlcERN 6 MIR)
lHEL'v'ETIu'"' 6 MIR)
iMCiOERN ,qù MIR))
(TIN\FONT a IhllOERN a)
U,,F.,H" aj
hll!nEr.N 6

iBIrFnNT J `;;1nPF~N 1P BFR)
`!HE".'LETICA 16 BRF)
hlrPEF;i1 16 ~fiP) !`

i TE.\TFrNT r 6L"~.'lc 1'~)
liTIhlE;:pnMN In)
i.LL~.>:Ic In:)
!`TE\TBnLPFnNT
t CLA~C 1 16 Bfifi
jTIME.';ROMAN
1P BfiR)

\P:LAc.~.Ir 16 BRR]
[<~T~NPARP (FlNTPRnPILE
(PEF"ULTFnNT 1

Figure 31.8. Part of the value of the atom FONTDEFS
To install a new profile from this list, follow the following
example, but insert any keyword for BIG.

To use the profile with the keyword BIG instead of the standard
one, evaluate the following expressioh
(FlTSET `BIG))

Now the fonts are permanently replaced. (That is, until another
profile is installed.)

FONTS 319
1



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12. YOUR INlT FILE

Interlisp-D has a number of global variables that control the
environment of your 1108 or 1186. Global variables make it easy
to customize the environment to fit your needs. One way to do
this is to develop an "INlTù' file. This is a file that is loaded when
you log on to your machine. You can use it to set variables, load
files, define functions, and any other things that you want to do
to make the Interlisp-D environment suit you.

Your lnit fi'e could be callecl INlT, INlT.LlSP, INlT.USER, or
whatever the convention is at your site. There is no default name
preferred by the system, it just looks for the files listed in the
variable USERGREETFILES, (see below). Check to see what the
preference is at your site. Put this file in your directory. Your
directory name should be the same as your login name.
The INlT file is loaded by the function GREET. GREET is normally
run when Interlisp-D is started. If this is not the case at your site,
or you want to use the machine and Interlisp-D has already been
started, you can run the function GREET yourself. If your user
name was, for example, TURlNG, then you would type:
(GREET `TURIK)

This does a number of things, including undoing any previous
greeting operation, loading the site init file, and loading your
init file. Where GREET looks for your INlT file depends on the
value of the variable USERGREETFiLES. The value of this
variable is set when the system's SYSOUT file is made, so check its
value at your site! For example, its value could be:
- . - 11
NIL

3'USERGREETFlLE5

iiiFD5hl,(.LI5PFILES~ USER ;INIT.LISPJ
t1rD5h','.LI5PFILE.>.~INIT.LI5PJ
t',rFLoPPY',INIT.L15œJ

i,rosh','ùLI5PFILES\ USER .`INIT.U5ERJ
((O.h L FILE.' .INlT.U.'ER'ùj

i(D. . FIL SER INIT:,
i(FLUPP';'j I

F~ure12.1. ApcsstblevalueofUSERGREETFILES.
In each place you see, "> USER >", the argument passed to
GREET is substituted i:ito the path. This is your login name if you
are just starting Interlisp-D. For example, the first value in the list
would have the system check to see whether there was a file,
[DSX]<L'SPFlLES>TURlNG>lNlT.LlSP. No error is generated if
you do not hcve an INlT file, and none of the files in
USERGREETFZLE$ are found.

Y0UR NIT FILE 12 1

MAKING AN INlT FILE

12.1 Making an lnit File

As described in Section 11.5, Page 11.7, each lnterlis~D program
file has a global variable associated with it, whose name is
formed by appending "COMS" to the end of the root filename.
For any of the standard INlT file names, the variable INlTCOMS is
used. To set up an init file, begin by editing this variable. First,
type:

(SETQ I*ITco*s `((VAnS)))
Now, to edit the variable, type:
(l z:sicn*s>

A DEdit window wiil appear. This DEdit window is the same as
the one called with the function OF, and described in Section
11.3, Page 11.4. This chapter will assume that you know how to
use the structure editor, DEdit.

The CONS variable is a list of lists. The first atom in each internal
list specifies for the file package what types of items are in the
list, and what it is to do with them. This section will deal with
three types of lists: VARS, FILES, and P. Please read about others
in the lnterlis~D Reference Manual, Volume ll, Chapter 17.
The list that begins with "VAR5'ù allows you to set the values of
variables. For example, one global variable is called DEditLinger.
Its default value is T, and means that the Dœdit window won't
close affer you exit DEdit. If it is set to NIL, then the DEdit
window will be closed when you exit DEdit. To set it to NIL in
your INlT file, edit the VARS.list so that it looks like this:
ù . . .1 1 ù1
((`,4R.$' iOEdirLinger NlLii Her
B~,are
G~lete
Replace
`3yvitch
( )

(out
Undo
Find
5'rtap
Rcprint
Edit

EditCam
Break
Eva
Exit

Figurù 12J. Setting the variable DEdI tLi nge r in INITCONS.
Notice that inside the vars list, there is yet another list. The firtt
item in the list is the name of the variable. It is bound to the
value of the second item. There are many other variables that
you can set by adding them to the VARS list. Some of these
variables are described in Chapter 43, and many others can be
found in the lnterlis~D Reference Manual.

If you want to automatically load files, that can be done in your
init file also. For'exampe, if you always want to load tho Library
file SPY. DCOM, you can load it by editing tho INlTC0MS variable
to list the appropriate file in thù list starting with FILES:

12.1 YOUR NIT flu

MAKING AN INlT FILE

(yARS iflEdlr.Llngùr NIL') After
ff1LE~ _ ~PY\) Betott
Delete
Replace
Switch

()out
Undo
Find
Swap
Reprint
Edit

EddCom
Breok
Evol
Exit

FluFe 12.3. INITCOMS changed to load the file SPY.DCOM
Other files can also be added by simply adding their names to
this FILES list.

Another list that can appear in a COMS list begins with "P". This
list contains Interlisp-D expressions that are evaluated when the
file is loaded. Do not put DEFINEQ expressions in this list.
Define the function in the environment, and then save it on the
file in the usual way (see Section 11.6, Page 11.7).
One type of expression you might want to see here, however, is a
F0NTCREATE function (see Section 31.2, Page 31.2). For
example, of you want to use a Helvetica 12 BOLD font, and there
is not a fontdescriptor for it normally in your environment, the
appropriate call to FOffTCREATE should be in the `ùP" list. The
INlTCOMS would look like this:

.
((VARS (DœditLingcr NIL)) After
(FILES SPY) Betone
(~ JFoHTcREaTE (QUOTE Delcte
HEL\'ETIl',, Repace
~vyitch

1-
~juoTE _ SOL") _ .1)) (`out
Undo
Find
Swap
Reprint
Edit

EdiKom
Break
Eva
Exit

Figure 12.4. ltulTcOfl5editedtoincludeacalltofOffTCflEATE. The form will
be evaluated when thelNlT file is loaded.

To quit, exit from DEdit in the usual way. When you run the
function NAKEFiLES (See Section 11.6, Page 11.7.), be sure that
you are connected to the directory (see Section 8.7, Page 8.4)
where the INlT file should appear. Now when GREET is run, your
init file will be loaded.

Y0UR INlT FILE 123



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r 33. MASTERSCOPE

Masterscope is a tool that allows you to quickly examine the
structure of complex programs. As your programs enlarge, you
may forget what variables are global, what functions call other
functions, and so forth. Masterscope keeps track of this for you.

Suppose that JVTO is the name of a file that contains many of the
functions involved in a complex system and that LlNTRANS is the
file containing the remaining functions. The first step is to ask
Masterscope to analyze these files. These files must be loaded.
All Masterscope queries and commands begin with a period
followed by a space, as in
ù AliLYZE FKS a Jvro

The ANALYZE process takes a while, so the 5ystem prints a period
on the screen for each function it has analyzed. (See Figure 33.1)

82&. ANALYZE FNS ON 3VTO
. d.,ne
D3~. aNALY?E FNS ON LIH1R'N~

. 1a,lA.l

Figure 33.1. The Interlisp-D Executive Window affer anolyzing the files
If you are not quite sure what functions were just analyzed, type
the file's CONS variable (See Section 11.5, Page 11.7.) into the
Interlisp-D Executive Window. The names of the functions
stored on the file will be a part of the value of this variable.

A variety of commands are now possible, all referring to
individual functions within the analyzed files. Substantial
variation in exact wording is permitted. Some commands are:
ù SHoN PATHS FRDN ANY T0 ANY
ù EDIT WERE ANY CALLS functionname
ù EDIT WERE ANY USES variablename
ù Wo CALLS WDN

ù Wo CALLS functionname
ù BY WoN IS functionname CALLED
ù WD USES variablename AS FIELD

Note that the function is being called to invoke each
command. Refer to the /nterlisp-D Reference Manual for
commands not listed here.

Figure 33.2 shows the lnterlis~D Executive Window affer the
commands ù wno CALLS GobbleDunp and ù vffo DOES
JVLinScan CALL.

MASTb'R'j~OPE 331

MASTEH,COPE

NIL

7,.,'. 1,,.lillj O~LL;==: ,1)~8 iD.B~imp

(,"c.h.~t,:r~i'TJ .J;/,j~J,J .J'.'t'r'Jet'TJ J;,'~~ 1Tij Gi>"ri'.'p~" ,,)bbl,,Ffu:h ,"jbb1~'Srririll
I/dump Fiji

`...,9j', "Ho clclE.. .J"i'L i `-. r, 1'"'LL
(Liri.'ci-ri 1'ù.'Cfr.3b1A 3 -h1~J
`9'A

Figure 33.2. Sample Masterscope Output

33.t The SHOW DATA command and GRAPNER
When the library package GRAPHER is loaded, (to load this
package, type (FILESLOAD GRAPHER).) Masterscope's
SHOWPATHS command is modified. The command will be
changed to generate a tree structure 5howi ng how the
program's functions interact instead of a tabular printout into
the lnterlis~D Executive window. For example, typing:
ù ~ PATHS FW Proce:sœE.
produced the display shown in Figure 33.3.

.GtB.,31nT~, T L:.n;.lLl:'ù.Utùn:P,.=
~"``-,Jt",,;r,.pj

r~infr.:p it'~ù;r.!rPr:p
r.>~>(Li;'7Uiùn~p..:
..~..JtL,;.l. Ofl'.JtLl;l.
. `,r:L,st lET _ p-:
œ::J8:~inEnJ ,*.l.Tù.'r:.

ù .Err.'.r Pfl!I Pr'ni.~n,.;
:p~1y
~lnt~nlno

Figurù 33.3. SHOW PATHS Dsplay Example

All the functions in the display are part of this analyzed file or a
previously analyzed file. Boxed functions indicate that the
function name has been duplicated in another place on the
display.

Selecting any function name on the display will pretty print the
function in a window. (See Figure 33.4.)

ij.J MAsTERscopa

THE SHOW DATA COMMAND AND GRAPHER

-~&lLir1wilhS hùfi
.ù~Tlùo1nTwTr1no~
~9i"~

ù 1n,fl~ _ ~i~or9~~~
ù ~~&tl1r?inith. "(s
.

to~~tLisi _ ~~otLirt
~ù~.~.~rù,ù; ______
Pw:ùLlrt ~(LùTTù.'

ù .` .d.~~~~;ù ~qLT~' f

ù ùù..`PùintError PTl.I Frint~ninùi
ù

ù .- upv
~inlWr,r.

[LAnaPA ~propnaaoù'i (` cdttod: ùù16ùMAAùù3ù' L'6''dùù
ù ùøeCAn~'9SCorProp prcpneae (suR 1012C8L'ùk])

Figutt 33.4. Browser Printout Example.

Selecting it again with the leff mOuse button will produce a
dexription of the function's role in the overall system (See
Figure 33.4)

~r.ù;l.1,'?U1ùnù;ùf'.:ù
ùt1BfgùinTW:ùl.riny~ ________

,p'~ù~ 1"~ù:t,-'ùùù.Pr'~
. ~c.3v.Liùiniih~t

Proc&;:Eli<. _________
ù .. . Por;ù~ùr' ù~:l=T7ùoù.

ùnf&rù.ùùr ~T=i Prir,t.~nir,ù
ù ùPùntWr,1fl4ù

ù GerryProp i,, -
ù L-Qll:! inetAnC .rorPrtihù
1nœNœl,~ lrireFiùJ.,rningù
Din" `pe~ùbùù'c8cJ1nT;.,='ùtr1n0.
i=~rMLù,ù 1rù'"ù$ùT=~',Fùr=Ceù'ùùEtlD
ù u~' f.-ccù TO cocl

FlùUrf 33.5. Browser Description Example.

33.2 Databasefns: Automatic Construction and Upkeep of a Masterscope
Database

DataBaseFns is a separate library package that allows you to
automatically construct and maintain Masterscope databases of
your filesù The package is contained in the DATABASEFNS.DCOM
file.

When DATABASEFNS.DCOM is loaded, a Masterscope database
will be automatically maintained for every file whose.DATABASE

MAST'RS~OPE 333

DATABASEFNS: _ AUTOMATIC CONSTRUCTION AND _ UPKEEP OF A MASTERSCOPE _ DATABASE

property has the value YES. If this property's value is not set, you
will be asked when you save the file "Do you want a Masterscope
Database for this file?". Saying YES enables the DabaBaseFns to
construct a Masterscope database of the file you are saving.
Each time the function *AKEFILE is used on a file whose
DATABASE property has a value YES, Masterscope will analyze
your file and update its own database. Each file's masterscop
database is kept in a separate file whose name has the form
FILE. DATABASE. Whenever you load a file with a YES value for
its DATABASE property, you will be asked whether you also want
the database file loaded.

33.4 N~TERSCOPE
1



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rù 34.WHERE DOES ALL THE TIME GO?

sPY

SPY is an Interlisp-D library package that shows you where you
spend your time when you run your system. It is easy to learn,
and very useful when trying to make programs run faster.

34.1 Now to use Spy with the SPY Window
The function SPY. BUTTON brings up a small window which you
will be prompted to position. Using the mouse buttons in this
window controls the action of the SPY program. When you are
not using SPY, the window appears as in Figure 34.1.

Figure 34.1. The SPY window when SPY 15 not being rnsed.
Ts use SPY, click either the leh or middle mouse button with the
mouse cursor in the SPY window. The window will appear as in
Figure 34.2, and means that SPY is accumulating data about your
program.

Figure 34.2. The SPY wir.oow when SPY is being used

To turn off SPY affer the program has run, again click a mouse
button in the SPY window. The eye closes, and you are asked to
position another window. This window contains SPY's results.
An ex~nr'ple of result window is shown in Figure 34.3.

WHERE D0ES ALL THE TIME G0' SPY 341
1

HOW TO USE SPY WITH THE SPY WINDOW

- TIrE.

l _ `3~~"H[P _ J~. _ [WIT. _ IN~&F.-1!~

17 _ `..TIrtP. PplJl'.E,-'-'..
- a ~i~~~~pT~œ&-

. REPE,,TE&L'.EV~rn EJ~rn ù1 EF.œUFE

7 _ ---RR.. h.JPillU~. _ fPlLE-ù -. 4 f, IPP,9R.h `F..n 4
Figure 34.3. The window produced afler running $PY

This window i5 scrollable in two directionsù horizontally, and
vertically. This is useful, since the whole tree does not fit in the
Winoovv. If a part that you want to see is not shown, then you
can scroll the window to show the part you want to see.

34.2 How to use SPY from the Lisp Top Level
SPY can also be run while a specific function or system is being
used. To do this, type the function WITH. SPY:
(VITN.sPY form)

The expression used for form should be the call to begin running
the function or system that SPY is to watch. If you watch the SPY
window, the eye will blink! To see your results, run the function
SPY. TREE. To do this, type:

(SPY.TREE)

The results of the last running of SPY will be displayed. If you do
this, and 5PY.TREE returns (no SPY saiples have been
gathQ red), your function ran too fast for SPY to follow.

34.3 Interpreting SPY's Results
Each node in the tree is a box that contains, first, the percentage
of time spent running that particular function, and second, the
function name. There are two modes that can be used to display
this tree.

The default mode is cumulative. In this mode, each percentage is
the amount of time that function spent on top of the stack, plus
the amount of time spent by the functions it calls.
The second mode is individual. To chango the mode to
individual, point to the title bar of the window, and press the
middle `n.ouse button. Choose Individual from the menu that
appears. In this mode, the percentage shown is the amount of
time th3t the function spent on the top of the stack.

34.2 WHERE 00E5 ALL TN5 ylMff G0? spY
1

lNTERPREn~ SPY'S RESuLtt



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32. THE INSPECTOR

The Inspector is a window-oriented tool designed to examine
data structures. Because Interlisp-D is such a powerful
programming environment, many types of data structures would
be difficult to see in any other way.

32.1 Calling the Inspector

Take as an example an object defined through a sequence of
pointers (i.e. a bitmap on the property list of a window on the
property list of an atom inaprogram.)
To inspect an object named NAME, type:
(IKSPECT `~)

If NAME has many possible interpretations, an option menu will
appear. For example, in Interlisp-D, a litatom can refer to both
an atom and a function. For example, if NAME was a record, had
a function definition, and had properties on its property list,
then the menu would appear as in Figure 32.1.

PRG'PS
FklS

FIELD;=~

Figure 32.1. Option Window For Inspection of NAME

If NAME were a list, then the option menu shown in Figure 32.2
would appear. The options include:
ù calling the display editor on the list;

ù calling the ~ editor (the "Typing Shortcuts",Chapter 6);
ù seeing the list's elements in a display window. If you choose this
option, each element in the list will appear in the right column of
the Inspector window. The left column of the Inspector window
will be made up of numbers. (See Figure 32.3.)

ù inspecting the list as a record type (this last option would
produce a menu of known record types). If you choose a record
type, the items in the list will appear in the right column of the
Inspector window. The left column of the Inspector window wili
be made up of the field names of the record.

P~rI~.lErtr
Tr:rE'1ir.
Inip~rr

A~are'iJrd

Figure 32.2. Option Window For Inspection of Lirt

THE INSPECTOR 321

USING THE INSPECTOR

32.2 Using the Inspector

If you choose to display your data structure in an edit window,
simply edit the structure and exit in the normal manner when
done. If you choose to display the data structure in an inspect
window, then follow these instructions:

ù To select an item, point the mouse cursor at it and press the left
mouse button.

ù Items in the right column of an Inspector window can themselves
be inspected. To do this, choose the item, and press the center
mouse button.

ù Items in the right column of an Inspector window can be
changed. To do this, choose the corresponding item in the left
column, and press the center mouse button. You will be
prompted for the new value, and the item will be changed. The
sequence of steps is shown in Figure 32.3.
ù .

1 INPEu'T-ME-TOOl
1ie-,PErT-hlœ-TQi32

a IN.u'FErT-11E-TQO3 The item in the lefl column is selected, and the middle mouse
button pressed. Select the SET option from the menu that pops
up.

The ev..pre:1Un re3J will be E
`/~LuQred.

cHaflGE&-'.:~"LlJ4

1 ]N.=~Pfi=.T-rrtE-Tc~i
2 1H".~pEcT-ttE-TI:i12

a Il You will then be prompted for the new value. Type it in.

ù6

1 [flPEQT-ME-TOOi
2 [Y.~PECT-1'1E-TOfl2

a CH~Pl,'ED-'.;~LUE The item in the right column is updated to the value of what you
typed in.

Figure 32.3. The sequence of steps involved in changing a value in the right
column of an Inspector window.

32.3 Inspector Example

This example will use ideas discussed in 5ection 37.1. An
example, ANlMALGItAPH, is created in that section. You do not
need to know the details of how it was created, but the structure
will be examined in this chapter.
If you type

(IKSPECT lI~.6liPN)

and then choosù thù Inspect option from thù menu, a display
appùars as shown in Figure 32.4. ANlMAL.G~PH is being

J

33.J TkElNSPECT~

lff5PE~0R EXAMPLE

inspected as a list. Note the numbers in the left column of the
inspectorwindow.

1 i't'fI.~H ~ NIL NIL --j `BIRD .~ NIL NIL
ù T
.i, NIL
4 NIL
5 NIL
6 NIL
? NIL
,qù NIL
9. NIL
1A. NIL
11 NIL
1~" NIL

Figure 32.4. Inspector Window For ANIMAL GRAPH, inspected as a list.
If you choose the "As A Record" option, and choose "GRAPH"
from the menu that appears, the inspector window looks like
Figure 32.5. Note the fieldnames in the leff column of the
inspectorwindow.

UP"PH.CH"NCEL"eELFfl NIL
CR"PH. INVEP.TL~BELFN NIL
CR"PH. IFlvEp.TBCiROERFN NIL
CR"PH.FONTcH"NoEFN NIL
bRaPH.&ELETELINKFN NIL
CRaPHù~D&LINkFN NIL
URAPH.cœLETENC~UEFN HIL
bRAPH. .oo&NUGEFN NIL
oRoPH.Mo$ENUoEFN NIL
DIREcTEDfLG NIL
o"IDE~FLo T

C.RuPHNi:DE.~ (i.'fl:H & NIL NIL --! `BIPP & NIL GIL

Figure 32.5. Inspector Window For ANlMAL.GRAPH, inspected as an instance of a
"GRAPH" record.

The remaining examples will use ANlMAL.GRAPH inspected as a
list. When the first item in the Inspector window is chosen with
the leff mouse button, the Inspector window looks like Figure
32.6.

1 ` _ ù1
T
3 NIL
4 NIL
5 NIL
r~ NIL
NIL
NIL
9 NIL
1H NIL
11 NIL
1- NIL

Figure 32.6. Inspector Window For ANlMAL.GRAPH With First Element Selected
When you use the middle mouse button to inspect the seiected
list element, the display looks like Figure 32.7.

THE INSPECTOR 32 j

INSPECTOR EXAMPLE

1 ù1
T

3 NIL =
4 PIlL

5 NIL 1 iFIfl 1.19:' 44) PIlL NIL HIL --!
`BIRD (.192 29) NIL PIlL NIL --
b' NIL 3 (CAT (.is ,J NIL NIL NIL

PIlL j. (&UU i"1;39 7) PIlL PJIL NIL
NIL ~ ((rh,,"trtffi,,"L GJU c~T) 199 14j fiL J.IlL
9 PIlL 6 ((,,"PIIMAL ; BIRD FI.Jh) .`..~ C9. IlL
19 PIlL
11 NIL
1'.' NIL

Figuro 32.7. Inspertor Window For ANlMAL.GRAPH and For the First Element of
ANIMALùGRAPH

How you can see that 5iX items make up the list, and you can
further choose to inspect one of these items. Notice that this is
also inspected as a list. As usual, it could also have been
inspected as a record.

Select item 5 - MAMMAL DOG CAT - with the leff mouse button.
Press the middle mouse button. Choose "Inspect" to inspect
your choice as a list. The Inspector now displays the values of the
structure that makes up MAMMAL DOG CAT. (See Figure 32.8.)

1 (h1~~MMkL GJ, lIT)
2 ilvjy' lJ)
NIL
4 NIL
5 NIL
6 45
7

is

o i',Do': ClIT',i

!) (c"'NlMlIL .~ BlRP FI."3Hj
iR, (Fi=1NTCLn"',~r'j7R!i?e..764
ii hllIPtMlIL
12 NIL

Figure 32.8. Inspector Window for Element S From Figure 32.7 That Begins
((MAMMAL DOG CAT).

32.A THE INSPECTOR



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. . . . . . .

rù 34.WMERE DOES ALL THE TiME GO?

sPY

SPY is an InterlispùD library package that shows you where you
spend your time when you run your system. It is easy to learn,
and very useful when trying to make programs run faster.

34.1 How to use Spy with the SPY Window
The function SPY. BUTTON brings up a small window which you
will be prompted to position. Using the mouse buttons in this
window controls the action of the SPY program. When you are
not using SPY, the window appears as in Figure 34.1.

Figure 34.1. The SPY window when SPY is not being used.
Ts use SPY, click either the Iefl or middle mouse button with the
mouse cursor in the SPY window. The window will appear as in
Figure 34.2, and means that SPY is accumulating data about your
program.

sPY

Figure 34.2. The SPY wirdow when SPY is being used

To turn off SPY atter the program has run, again click a mouse
button in the SPY window. The eye closes, and you are asked to
position another window. This window contains SPY's results.
An example of result window is shown in Figure 34.3.

WHERE D0ES ALL THE TIME Go' SPY 341
l

How TO USE SPY `KlTH THE SPY WINDOW

rp.i)rE?
~L,:,,.*~.

IrtP.rpji=.E;'';. .

ùU TI~REhpYfiœ&.

J!l!i .EV~fi)f. `:. ù ù1 FEPEA~OL.EU~rn -`1 EJ~J .l ER.GURE

7 _ ùùù.BN.ù.F i;f;iù.iU~. _ Fpi'cfùù:ù11 .. j IPP,fl~.ùhJri.ùii.iN
4

Fiqure 34.3. The window produced affer running SPY

Tljis window i5 scrollable in two directions, hOrizontaily, and
vertically. This is useful, since the whole tree does not fit in the
wiroow. If a part that you want to see is not shown, then you
can scroll the window to show the part you want to see.

34.2 How to use SPY from the Lisp Top Level
SPY can also be run while a specific function or system is being
used. To do this, type the function VITH SPY:
(WITH.sPY form)

The expression used for form should be the call to begin running
the function or system that SPY is to watch. If you watch the SPY
window, the eye will blink! To see your results, run the function
SPY. TREE. To do this, type:

(SPY.TREE)

The results of the last running of SPY will be displayed. If you do
this, and SPY.TREE returns (no SPY saiples have been
gathered), your function ran too fast for SPY to follow.

34.3 Interpreting SPY's Results
Each node in the tree is a box that contains, first, the percentage
of time spent running that particular function, and second, the
function name. There are two modes that can be used to display
this tree.

The default mode is cumulative. In this mode, each percentage is
the amount of time that function spent on top of the stack, plus
the amount of time spent by the functions it calls.
The second mode is individual. To chango the mode to
individual, point to the titlo bar of the window, and press the
middle .~ouse button. Choose Individual from the menu that
appears. In this mode, the percentage shown is the amount of
time that the function spent on the top of the stack.

34.2 WHERE nQE$ ALL THE TIME G0? SPY
1

1NTERPREfl~ SPY'S RESULTS
To look fit G iingle branch of the tree, point with the mouse
curtor at one of the nodes of the tree, and press the right mouse
hutton. From the menu that appeatt, choose the option
SubTree. Another SPY window will appear, with just this branch
of the tree in it.

Another way to focus within the tree is to remove branches from
tlie tree. To do this, point to the node at the top of the branch
you would like to delete. Press the middle mouse button, and
choose Delete from the menu that appears.

There are also different amounts of "merging" of functions that
can be done in the window. A function can be called by another
function more than once. The amount of merging determines
where the subfunction, and the functions that it calls, appear in
the tree, and how offen. (For a detailed explanation of merging,
see the Lisp Library Packages Manual.)

WHERE DOES ALL THE TIME GO' sPY 343
1



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tilL.. 36. FREE MENUS

Free Menu is a library package that is even more flexible than the
regular menu package. It allows you to create menus with
different types of items in them, and will format them as you
would like. Free menus are pai~icularly useful when you want a
"fill in the form" type interaction with the user.
Each menu item is described with a list of properties and values.
The following example will give you an idea of the structure of
the description list, and some of your options. The most
commonly used properties, aiid each type of menu item will be
described in Section 36.2 and Section 36.3.

36.1 An Example Free Menu

Free menus can be created and formatted automatically! It is
done with the function FN. FORNATNENU This function takes
one argument, a description of the menu. The description is a
list of lists; each internal list describes of one row of the free
menu. A free menu row can have more than one item in it, so
there are really lists of lists of lists! It really isn't hard, though, as
you can see from the following example:
(SETQ Ex~1e*anu
(F*.FORliT*EMu

`(( TYPE TITLE LABEL TitlesDonothing)
TYPE 3STATE LABEL Ex~1e3State))

( TYPE EDITSTART LABEL PressToStartEd;ting
ITEMS (EDITE*))

(TYPE EDIT ID EDITEN LABEL ùù))
(*IKDDMPRDPS TITLE ùEx~1e Dris Nothing))))

The first row has 2 items in it; one is a TITLE, and the second is a
35TATE item. The second row also has 2 items. The second, the
EDIT item, is invisible, because its label is an empty string. The
caret will appear for editing, however, if the EDlTSTART item is
chosen. Windowprops can appear as part of the description of
the menu, because a menu is, affer all, just a special window.
You can specify not only the title with WINDOWPROPS, but also
the position of the free menu, using the "Ieff" and "bottom"
properties, and !he width of the border in pixels, with the
"border" property. Evaluating this expression will return a
window. You can see the menu by using the function OPENW.
The following example illustrates this:

FREE MENUS 361
1

AN EXAMPLE FREE MENU

6i,'~T~ E;mD.1c1d~nij

.;F(,7,fJp,[4,,$~]~fJ.J\J ,, ù. T' Gf TITLE LBEL T ir1~,flN~rr T
.T"rE =-ù`T."TE L"bEL E:.Jm"1c5tJcs'!'.
. `FE =,IT:..THF:T

LEL =r~'=Tu'"r~t'tEditing
lTEfl= cOlTEN'

T"E `IT ID EDITEm L~8EL ,
"`..ililci=,..''=cipT=..

TITLE ` ;,.,1";c Din' 1'luthlnj.'?

.TT9'i i)pf)liff molMertiJ'i
f.hi1ltlDu',V'r#' j64

Figure 36.1. An example free menu

The next example shows you what the menu looks like affer the
EDlTSTART item, PressToStartEditing, has been chosen.

T,r f~"=.Oi=i1'1,=irhin3 E':,mp1~,='.=r.,r~
P~'~='"'TJT..,rTEJ1r1r1.j A

Figure 36.2. Free menu affer the EDlTSTART item has been chosen
The following example shows the menu with the 3STATE item in
its T state, with the item highlighted (In the previous bitmaps, it
was in its neutral state.)
.
ù c l 1 1

.1-=':.OiJ-tljrhini=!
,:`T'='Ot..;rrE'liriiJ,

FigUre 36.3. Free menu with the 35TATE .tem in its T state
Finally, Figure 36.4 shows the 35TATE item in its NIL state, with a
diagonal line through the item

T1r le.".OcNorhing E..::r'~ _ 1 _ = _ ù`.`..,i.~
Rrn. ;``, T,St.arrEdir,iri,

. . . . .

Figure 36.& Free menu with the 3STATE item in its NIL state
If you would like to specify the layout yourself, you can do that
too. See the Lisp Library Packages Manual for more information.

36.2 Parts of a Free Menu Item
There are 8 different types of items that you can use in a free
menu. No matter what type, the menu item is easily described by
a list of properties, and values. Somo of the properties you will
use most often are:

36.2 FREE MENUS
1

PARTS OF A FREE MENU ITEM

LABEL Required for every type of menu item. It is the atom, string, or
bitmap that appears as a menu selection.

TYPE One of eight types of menu items. Each of these are described
below.

MESSAGE The message that will appear in the prompt window if a mouse
button is held down over the item.

ID An item's unique identifier. An ID is needed for certain types of
menu items.

ITEMS Used to list a series of choices for an NCHOOSE item, and to list
the ID's of the editable items for an EDITSTART item.
SELECTEDFN The name of the function to be called if the item is chosen

36.3 Types of Free Menu Items
Each type of menu item is described in the following list,
including an example description list for each one.

Momentary This is the familiar sort of menu item. When it is selected, the
function stored with it is called. A description for the function
that creates and formats the menu looks like this:
(TYPE WEKTARY
LABEL Blink-K-Rin9

*ES~6E ùBlinks the screen and rings bellsù
sœLEcTEDFK RIKBELLS)

TOGGLœ This menu item has two states, T and NIL. The default state is NIL,
but choosing the item toggles its state. The following is an
example description list, without code for the SELECTEDFN
function, for this type of item:
(TYPE T~6LE
LABEL hi~isab1e

sELEcTEDFN changeIl*State)

3STATE This type of menu item has 3 states, NUIETRAL, T, AND NIL
Neutral is the default state. T is shown by highlighting the item,
and NIL is shown with diagonal lines. The following is an
example description list, without code for the SELECTEDFN
function, for this type of item:
(TYPE 3STATE

LABEL correctprograùAllofflospelling
sELEcTEDFli ToggleSpellingcorrection)

TITLE This menu item appears on the menu as dummy text. It does
nothing when chosen. An example of its description:
(TYPE TITLE LABEL ùChoices:")

NWAY A group of items, nnly one of which can be chosen at a time. The
items in the NWAùY group should all have an ID field, and the ID's
should be the same. For exan1Fle, to set up a menu that would
allow the user to chose betvveei Helvetica, Gacha, Modern, and
Classic fonts, the descriptions might look like this (Once again,
without the code for the SELECTEDFN):
(TYPE lAY ID F~Tc~Ic'
LABEL blvetica
sELEcTEDFN changeFont)

FREE MENUS 36)
I

TYPES OF FREE MENU ITEMS

(TYPE NVAY ID FOQTCKICE
LABEL Gacha
SELECTEDF

(TYPE lAY ID F05TliCriC0ha,~n8efont)
LABEL Modern

SELECTEDFli Chan2eFont)
(TYPE KAY ID fONTCHOIC
LABEL Classic

SELECTEDFN Changefont)

NCHOOSE This type of menu item is like NWAY except that the choices are
given to the user in a submenu. The list to specify an NCHOOSE
menu item that is analogous to the NWAY item above might
look like this:
(TYPE MC~SF
LABEL FontChoices

ITEMS Helvotica Gacha Modern Classic)
SELECT DfK Changefont)

EDlTSTART When this type of menu itein is chosen, it activates another type
of item, an EDIT item. The EDIT item or items associated with an
EDlTSTART item have their lD's listed on the EDlT5TART's ITEMS
property. An example description list is:
(TYPE EDITSTART LABEL ùFunction to add? ITEMS (Fn))
EDIT This type of menu item can actually be edited by you. It is often
associated with an EDlT5TART item (see above), but the caret
that prompts for input will also appear if the item itself is chosen.
An EDIT item follows the same editing conventions as editing in
Interlisp-D Executive window:
Add Characters by typing them at the caret.
Move the caret by pointing the mouse at the new position, and
clicking the leff button.

Delete Characters from the caret to the mouse by pressing the
right button of the mouse. Delete a character behind the caret
by pressing the back space key.

Stop editing by typing a carriage return, a Control-X, or by
choosing another item from the menu.
An example description list for this type of item is:
(TYPE EDIT ID Fn LABEL ùù)

36.4 FREENEMus
1



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37. THEGRAPHER

37.1 Say it with Graphs

Grapher is a collection of functions for creating and displaying
graphs, networks of nodes and links. Grapher also allows you to
associate program behavior with mouse selection of graph
nodes. To load this package, type
(FILESL~ GliPHER)

Figure 37.1 shows a simple graph.
i `iLk w.F."PH `N M'L.l;R"PH `NlM'ùL r;P"Pffù'
,(.h,,lINGUY!:øw',1513.y1
14'

-FIH

. NIM"L, BIRO

Figure 37.1. A Simple Graph

In Figure 37.1 there are six nodes (ANIMAL, MAMMAL, DOG,
LAT, FISH, and BIRD) connected by five links.
A GRAPH is a record containing several fields. Perhaps the most
important field is GRAPHNODœS - which is itszlf a list of
GRAPHNODE records. Figure 37.2 illustrates these data
structures The window on top contains the fields from the
simple graph. The window on the bottoms an inspection of the
node, DOG.

THEGRAPHER 371

SAY lTWlTH GRAPHS

i9'1, I ET ù`NI1'1,,L.CR~PH'.i
Ilvl,l = `-#"=9,1j~'j','3

GPPH.cr"ilLEL,,ù'BELFN `IL
ù 1'R"pH. Ili'ù!ERTLBELFN 1.lIL
ù H. Iflùù.ùùERTBDPDEPFN tilL
H.FGtTi'.HNoEFPl 1ùlIL

, rPù'PH,t.lL/ElùllDEFbl IL
. OIRECTECFLi, (ilL

ù rp..'Pflbll) ~ I.F = , tilL III `.ùB.IP.D NIL ff IL

. NOOEBOPOER `ilL
tiODEL,,'BEL loo
, , `tODEFONT ~`FOIiT `
. .OtlffO&EO- It'lL -

. t,iODE'.~,lOTH `.4,
, IiUOEL6EL.'-H~OE ùùlIL
, NODELfiELBlTIrt,iùP ùIIL
, I,iUDEPUITlClI.l in
NODE ID 300

Figure 37.2. Inspefling a Graph and a Node

The GRAPHNODE data structure i~ described by its text (NODElD),
what goes into it (FROMNODES), what leaves it (TONODES), and
other fields that specify its looks. The basic model of graph
building is to create a bunch of nodes, then layout the nodes into
a graph, and finally display the resultant graph. This can be done
in a number of ways. One is to use the function NODECREATE to
create the nodes, LAYOUTGRAPH to lay out the nodes, and
SHOWGRAPff to display the graph. The primer shows you two
simpler ways, but please see the Library Packages Manual for
more information about these other functions. The primer's first
method is to use SHOWGRAPH to display a graph with no nodes or
links, then interactively add them. The second is to use the
function LAYOUT5EXPR, which does the appropriate
NODECREATES and a LAYOUTGRAPH, with a list.
The function SHQWGRAPH displays graphs and allows you to edit
them. The syntax of SHOWGffAPH is

(~liPH graph window lefibuttonfn middlebuttonfn
topjustiffflg alloweditflg copybuttoneventfn)
Obviously the graph structure is very complex. Here's the easiest
way to create a graph.
~.6liPN III)

lS5~liPN P.6liPH ù5Y Sraphù KIL NIL NIL T)

Figurù 37.3. My Graph

37.2 THEGRAPHER .J

SAY IT WITH GRAPHS

You will be prompted to create a small window as in Figure
Figure 37.3. This graph has the title My Graph.
Hold down the right mouse button in the wiridow. A menu of
graph editing operations will appear as in Figure 37.4.

D;Ier~ Link
&=h~~n9e ib P.I
ljbel g,nill~.r
l&'bel l~.roù~.r
Dir~..ct~.i1
SIdPg
~ BoiùdP.r

`h;~d"
`Tr"P

Figure 37.4. A Menu of Graph Editing Operations
Here's how to use this menu to:

Add a Node Start by selecting Add Node. Grapher will prompt you for the
name of the node (See Figure 37.5.) and then its position.

Figure 37.5. Grapher prompts for the name of the node to add affer Add
Node is chosen from the graph editing menu.

Position the node by moving the mouse cursor to the desired
location and clicking a mouse button. Figure 37.6 ,hows the
graph with two nodes added using this menu.

~irùr-ri~tle
s~~'ondnod~

Figure 37.6. Two nodes added to MY GRAPH using the graph ed it.q.g menu
AddaLink Select Add Link from the graph editing menu The Prompt
window will prompt you to select the two nodes to be linked.
(See Figure 37.7.) Do this, and the link will be added.

o .

first-node
,.ccond-node

Figure 37.7. The Prompt window will prompt you to select the two nodes to link.

THEGRAPHER 37.3

SAY IT WITH GRAPHS

DeleteALink Select Delete Link from the graph editing menu. ThePrompt
window will prompt you to select the two nodes that should no
longer be linked. (See Figure 37.8.) Do this, and the iink will be
deleted.

r _ `rr-n>';1~
;`~"or,'j-nod;

FigUre 37.8. The Prompt window will prompt you to Seje~~ `.1 ryo nodes that
shouid no longer be linked.

Delete A Node Select Delete Node from the graph editing menu. The Prompt
window will prompt you to select the node to be aeleted. (See
Figure 37.9.) Do this, and the node will be deletea.

firs. r-nod"
,L'0fl'S1-fl0d~

Figure 37.9. The prompt to delete a node

Moving a Node Select "Delete Node" from the graph editng menu. Choose a
node pointing to the it with the mouse cursor, and pressing and
holding the leff mouse button. When you move the mouse
cursor, the node will be dragged along. When the node is at the
new position, release the mouse button to deposit the node.

The commands in this menu are easy to learn. Experiment with
them!

37.2 Making a Graph from a List
Typically, a graph is used to display one of your program's data
structures. Here is how that is done.

LATOUTSEXPR takes a list and returns a GRAPH record. The
syntax of the function is

(UYWTSEXPR sexpr format ~xing font motberd
penonald fam;lyd)
For example:

(u~T10Q AKIliL.TREE `(MIlL (l'~ ~ CAT) BIli FISH))
AaIliL.6liN

37.4 THEGRApHER

MAKING A GRAPH FR0M A LIST

b~YouTSE*PR AKIliL .TREE ùHoRIZ0NTALi~)
(Eli N AHIliL.GliPN ùNj Grùpbù NIL KIL a T)

This is how Figure 37.1 was produced.

37.3 Incorporating Grapher into Your Program
The Grapher is designed to be built into other programs. It can
call functions when, for example, a mouse button is clicked on a
node. The function SHOWGRAPff does this:

(~liPH graph window leflbuttonfn middlebuttonfn
topjusti~Rg alloweditflg copybuttoneventfn)

For example, the third argument to SHOWGRAPH, leftbuttonfn, is
a function that is called when the lefl mouse buttoii 15 pressed in
the graph window. Try this:
(DEFIKœQ (~.LEfT.BUTT0N.FUNCTI0N
(TNE.6liPHNooE THE.GliPH.wIN~)
(INSPECT TNE.6liPNNooE)))

(~liPH FlILY.61PN ùInspoct&bla fiilyù
(F~TIK N".LEFT.BUTTa.FuNCTIo*)
liIL NIL T)

In the example above, liT.LEFT.BUTTON. FUNCTION simply
calls the inspector. Note that the function should be written
assuming it will be passed a graphnode and the window that
holds the graph. Try adding a function of your own.

37.4 More of Grapher

Some other Library packages make use of the Grapher. (Note:
Grapher needs to be loaded with the packages to use these
functions.)

ù NASTERSCOPE: The Browser package modifies the Masterscope
command, . SHOW PATHS, so that its output is displayed as a
graph (using Grapher) instead of simply printed.
ù GRAPHZOOM: allows a graph to be redisplayed larger or smaller
automatically.

THEGRAPHER 375



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41. RESOURCE MANAGEMENT

41.1 Naming Variables and Records
You will find times when one environment simultaneously hosts
a number of different programs. Running a demo of several
programs, or reloading the entire Interlisp-D environment from
floppies when it contains several different programs, are two
examples that could, if you aren't careful, provide a few
problems. Here are a few tips on how to prevent problems:
ù If you change the value of a system variable, ffENUHELDVAIT for
example, or connect to a directory other than
(DsK)<LlsPFlLEs>, write a function to reset the variable or
directory to its original value. Run this function when you are
finished working. This is especially important if you change any
of the system menus.

ù Don't redefine Interlisp-D functions or CLl5P words.
Remember, if you reset an atom's value or function definition at
the top level (in the Interlisp-D Executive Window), the message
(Some.Crucial.Function. Or. Variable redefined), appears. If
this is not what you wanted, type UNDO immediately!

If, however, you reset the value or function definition of an atom
inside your program, a warning message will not be printed.
ù Make the atom names in your programs as unique as possible.
To do this without filling your program with unreadable names
that noone, including you, can remember, prefix your variable
names with the initials of your program. Even then, check to see
that they are not already being used with the function BOUNDP.
For example, type:
(~P ùB&ckgroundhnu)

This atom is bound to the menu that appears when you press the
leff mouse button when the mouse cursor is not in any window.
BOUKDP returns T. BOUNDP returns NIL if its argument does not
currently have a value.

ù Make your function names as unique as possible. Once again,
prefixing function names with the initials of your program can
be helpful in making them unique, but even so, check to see that
they are not already being used. GETD is the Interlisp-D function
that returns the function definition of an atom, if it has one. If
an atom has no function definition, GETO returns NIL. For
example, type:
(GEffl `CAR)

RESOURCE MANAGEMENT 411

NAMING VARIABLES AND RECORDS

A non-NIL value i~ returned. The atom CAR already has a
function definition.

ù Use complete record field names in record FETCHes and
REPLACEs when your code is not compiled. A Complete record
field name is a list Consisting of the record declaration name and
the field name. Consider the following example:
REC0RD N~ FIRST LAST))

SETQ Nyfflrn create Nlœ FIRST `John LAST `~ith))
FETCH (~ FIRST) OF Mylrn)

ù Avoid reusing names that are field names of Interlisp-D System
records. A few examples of system records follow. Do not reuse
these names.

RECORD RE6IOl (LEFT RoTTOl WIDTH NEIGHT))
RECORD POSITIK xC00RD
RECORD Ili6E~ BITliYCP00RD)))

ù When you select a record name and field names for a new
record, check to see whether those names have already been
used.

Call the function RECLOOK, with your record name as an
aùrgument, in the lnterlis~D Executive Window. (See Figure
41.1.) If your record name is already a record, the record
definition will be returned; otherwise the function will return
NIL.

- . 11

4..Où:ù(fi.ECL)OY~ FB;'~ITiON)
!`P\ECCPO
PO~1TI)N

[ùT\L~'.lp:E)F;,P "So'1P~D!
(8Nfl (LlSTP O~TUM\
(NUl18œP~P !`,C4l'~ D~TUfi1:))

(i\"('~'Tœh1\\j (NUMBERœ (CDR OurOIl]
5ik(P~ECLOUff N~,~P~~)
NIL
5~'~E

Figuvù 41.1. RECLOOK returns tbe record definition If ts argument is already
declared as a record, NIL otne~ise.

Call the function FIELDLOOK with your new field name in the
InterlispùD Executive Window. (See Figure 41 2.) If your field
name is already a field name in another record, the record
definition will be returned; otherwise the function will return
NIL.

412 RESOURCE MANAGEMENT ù1

NAMING VARIABLES AND RECORDS
, 1
~.4'+(fIELOLOOft Y96COORD)
((RECORD
pO'e.ITION

(:~`COORO \COORD)
[T'Y'PE"ù (~NP (LIvt~TP O4TUbl!
(NUblBERP (CAR D,iTUhl\
I:.NUMBERP ("OR D~TUftt]
(S\ù'~~.TEb1)\)

55~(FIELPLOPh .ip~;\
NIL
58-

Figure 41.2. FIELDLOOK returns the record definition if ItS argument Is
already the field ofarecord.NILothe~ise

41.2 Some Space and Time Considerations
In order for your program to run at maximum speed, you must
efficiently use the space available on the system. The following
section points out areas that you may not know are wasting
valuable space, and tips on how to prevent this waste.
Often programs are written so that new data structures are
created each time the program is run. This is wasteful. Write
your programs so that they only create new variables and other
data structures conditionally. If a structure has already been
created, use it instead of creating a new one.
Some time and space can be saved by changing your RECORD and
TYPERECORD declarations to DATATYPE. DATATYPE is used the
same way as the functions RECORD and TYPERECORD. (See
Chapter 24.) In addition, the same FETCH and REPLACE
commands can be used with the data structure DATATYPE
creates. The difference is that the data structure DATATYPE
creates cannot be treated as a list the way RECORDs and
TYPEREC0RDs can.

41.2.1 Global Variables

Once defined, global variables remain until Interlisp-D is
reloaded. Avoid using global variables if at all possible!
One specific problem arises when programs use the function
6ENSYff. In program development, many atoms are created that
may no longer be useful. Hints:
ù Use

(DELDEF atomname `PKP)
to delete property lists, and
(DELDEF atomname `vARS)

RESOURCE MANAGEMENT 413




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SOME SPACE AND TIME CONSIDERATIONS

to have the atom act like it is not defined.

These not only remove the definition from memory, but also
change the appropriate f 11 eCOffS that the deleted object was
associated with so that the file package will not attempt to save
the object (function, variable, record definition, and so forth) the
next time the file is made. Just doing something like
(SETQ (arg at~nm) `~IE)

looks like it will have the same effect as the second DELDEF
above, but the SETQ doesn't update the file package.
ù If you are generating atom names with GENSYN, try to keep a list
of the atom names that are no longer needed. Reuse these atom
names, before generating new ones. There is a (fairly large)
maximum to the number of atoms you can have, but things slow
down considerably when you create lots of atoms.
ù When possible, use a data structure such as a list or an array,
instead of many individual atoms. 5uch a structure has only one
pointer to it. Once this pointer is removed, the whole Structure
will be garbage collected and space reclaimed.

41.2.2 Circular Lists

If your program is creating circular lists, a lot of space may be
wasted. (Note that many cross linked data structures end up
having circularities.) Hints when using circular lists:
ù Write a function to remove pointers that make lists circular when
you are through with the circular list.

ù If you are working with circular lists of windows, bind your main
window to a unique global variable. Write window creation
conditionally so that if the binding of that variable is already a
window, use it, and only create a new window if that variable 15
unbound or NIL.

Here is an example that illustrates the problem. When several
auxilIary windows are built, pointers to these windows are
usually kept on the main window's property list. Each auxilIary
window also typically keeps a pointer to the main window on its
property list If the top level function creates windows rather
than reusing existing ones, there will be many lists of useless
windows cluttering the work space. Or, if such a main window is
closed and will not be used again, you will have to break the
links by deleting the relevant properties from both the main
window and all of the auxiliary windows first. This is usually
done by putting a special CLOSEFli on the main window and all
of its auxiliary windows.

41.2.3 When You Run Out Of Space
Typically, if you generato a lot of structure! that won't get
garbage collected, you will eventually run out of space. The
important part ii being aNe to track down those structures and

4I.4 REsouRcE MANAGEMENT
I

SOME SPACE AND TIME CONSIDERATIONS

the code that generates them in order tO become more space
efficient.

The Lisp Library Package GCHAX.DCOM can be used to track
down pointers to data structures. The basic idea is that GCHAX
will return the number of references to a particular data
structure.

A special function exists that allows you to get a little extra space
50 that you can try to save your work when you get toward the
edge (usually noted by a message indicating that you should save
your work and sysin a fresh Lisp). The GAINSPACE function
allows you to delete non-essential data structures. To use it,
type:

(liIKSPACE)

into the Interlisp-D Executive Window. Answer "N" to all
questions except the followi ng.
ù Delete edit history
ù Delete history list.

ù Delete values of old variables.
ù Delete your MASTERSCOPE datadase
ù Delete information for undoing your greeting.
Save your work and reload Lisp as soon as possible.

RESOURCE MANAGEMENT 41 S



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Date: 19 Dec 91 17:23 PST
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To: sybalsky
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42. SIMPLE INTERACTIONS WITH
THE CURSOR, A BITMAP, AND A
WINDOW

The purpose of this chapter is to show you how to build a
moderately tricky interactive interface with the various
lnterlis~D display facilities. In particular how to move a large
bitmap (larger than 16 x 16 pixels) around inside a window To
do this, you will change the CURSORINFN and CURSOROUTFN
properties of the window. If you would also like to then set the
bitmap in place in the window, you must reset the
BUTTOKEVENTFN. This chapter explains how to create the
mobile bitmap.

42.1 An Example Function Using GETMOUSESTATE
One function that you will use to "trace the cursor" (have a
bitmap follow the cursor around in a window) is
GETNOUSESTATE. This function finds the current state of the.
mouse, and resets global system variables, such as LASTM0USEX
andLASTMOUSEY.

As an example of how this function works, create a window by
typing

(SETQ EzMPLE.wIN~ (CREATEI))

into the Interlisp-D Executive window, and sweeping out a
window. Now, type in the function
(DEFIKEQ (PRIKTC00RDS (V)

P~TPRI*T ù(ù ~TuouSEx ., . US~EY ù)ù)
BLocK)

6E~SESTATE)))

This function calls GETNOUSESTATE and then prints the new
values of LASTNOUSEX and LASTMOUSET in the promptwindow.
To use it, type

(WIKraoPRoP EXlPLE .ilI*~ `CURSD~EDFK `PRIaTC00RDS)
The window property CURSORffOVEDFN, used in this example,
will evaluate the function PRINTCOORDS each time the cursor is
moved when it is inside the window. The position coordinates of
the mouse cursor will appear in the prompt window. (See Figure
42.1.)

SIMPLE INTERACTIONS M'ITH THE cuRsoR. A BlTMAP, AND A WINDOW 42 f
I

AN EXAMPLE FUNcTION USING GETMOUSE5TATE

Figure 42.1. The current position coordinates of the mouse cursor are shown in
the prompt window

42.2 Advising GETMOUSESTATE
For the bitmap to follow the moving mouse cursor, the function
GETKOUSESTATE is advised. When you advise a function, you
can add new commands to the function without knowing how it
is actually implemented. The syntax for advise is

(RISE fn when where what)

fn is the name of the function to be augmented.
when and where are optional arguments. when specifies
whether the change should be made before, affer, or around the
body of the function. The values expected are BEFORE,
AFTER, or AROUND.

what specifies the additional code.

In the example, the additional code, what, moves the bitmap to
the position of the mouse cursor. The function GETNOUSESTATE
will be ADVISEd when the mouse moves into the window. This
will cause the bitmap to follow the mouse cursor. ADVISE will
be undone when the mouse leaves the window or when a mouse
button is pushed. The AOVISEing will be done and undone by
changing the CURSORINFK, CURSOROUTFN, and
BUTTONEVENTFK forthewindow.

42.3 Changing the Cursor

Ofif laot part of tho examplo, to give thù impression that a
bitmap is dragged around a window, thù original cursor should
disappear. Try typing:
(CURSOR (CURSORCRœRrt (6I~PCREAtt 1 l) 1 11

ù2.2 SINPU NVE~CYI0NS WITH Tn: CURSOR. A StTNAP. ANO A WIHIOOW

CHANGING THE CURSOR

into the lnterlis~D Executive Window. This causes the original
cuttor to disappear. It reappears when you type
(CURSOR T)

When the cursor is invisible, and the bitmap moves as the cursor
moves, the illusion is given that the bitmap is dragged around
the window.

42.4 Functions for "Tracing the cursor"
To actually have a bitmap trace (follow) the cursor, the
environment must be set up so that when the cursor enters the
tracing region the trace is turned on, and when the cursor leaves
the tracing region the trace is turned off. The function

Establish/Trace/Data will do this. Type it in as it appears
(note: including the comments will help you remember what the
function does later).

(DEFIKEQ Establish/Trace/rata

[LANR0 (ùnd tracebiteap cursor/rightoffse~ cursor/heighteffse~ GCGA6P)

ù This functlri is collùd to ostablish tha dùti to tracù
the dùsirod bitaapù ùùndù is the ùind~ in ùhich the tracing
is to take place, øtracebitùap" is the

ùcursor/rightoffsetù and ù~~~50~'~~~g~~0t~~~~~5~i~~1 b~~i~~t~g~~5
ùhich dete~ine the hotspot of the tracing biteap.
As "cursor/heightof'set and ùcursor/rightoffsetù increase
the cursor hotspot :ves up and to the right.
If GCGAGP is non-NIL, GcGAC ùill be disabled.)

(PRoG NIL

(if (0R NULL ùnd)
(NULL tracebitaap))

then (PLAYTUNœ (LIST (CONS 1000 4000)))

(if ~&~&pRET~RN))
then (GC6A6))

ù Create a blank cursor.)

(SSEETTQQ ~8BrnUNNKKCTliURCS0ECRtiR(soBIRllNAù(CPCURRsoEARTcEREl,eT~loù)jwxc~~2~ùj~
ù ù Set the CURSOR IN and 0UT FNS for ùnd to the
Jolloeing:)

(*INroNPRoP ùnd UTE CURSORINF
(FU TIrn SETUP/Tlic

(WINDoNPooP ùnd~~TE CURSoRoUTFENNJJ
(FU TIoN UNTlicœ/CURSOR))

(O ù To all",' the bita,ap to be set den in the ùindw bY
pressing a "`ouse button, include this line.
0ther',,'ise, it is not needed)

(WINnoNPRop ùnd (UTE RUTToNEVENTFN)
(FUNCTIoN PLACEIBITNAPIINIwINrGN))

Set up Global Variables for the tracing 9eratien)
(SETQ ùTRAcElITNApù tracebiteap)
TQ ùRIGNTTliCE'oFFSETù(oR cursor/rightoffse~ 0)

5>sfE~TQ ùHEIGHTTRACEIoFFSETù(0R cursor/hei htoffset ))
TQ ù0LQBIT~PPosITIoNù(BIfflPCREATE llNArnIOTN tracebitùap)

(SETQ ùTliCCwfNDoNù rndj)) BITNApHEI6hT tracebiteap)))

SIMPLE INTERAcT'oNs WITH THE cuRsoR. A BJTMAP. AND A WINDOW 423
1

FUNCTIONS FOR "TRACING THE CURSOR'

When the function Establish/Trace/Data is called, the
functions SETUP/TRACE and UNTRACE/CURSOR will be installed
as the values of the window's WlNDOWPROP$, and will be used
to turn the trace on and off. Those functions should be typed in,
then:

(DEFINEQ SETUP/TRACE
[ADA ùnd)

(O ù This function is and's cuRSORIKFK.
It siepiy resoti thù last trace position and the current
tracing region. It also raadvises fiETNouSESTATE to perforn
the trace function after each call.)

(if ùTRAcEBITNAPù

then SETQ øLAST-lPACE-XPO5ù -zOo
SETQ ùLAST-TRACE-YPOSù -zoooø)

SETQ ùvNDREGIaù (WINOaNPROP and (ATE REGI0N)))
WIN~flROP and (ATE TliCIK)
T)

ù :ake the cursor disappear)

CURSOR øBLANKTRACECURSORù)
ANISE QUOTE GEThOUSESTATE)
QUOTE AFTER)
IL

(QUOTE (TPACE/CURSOR]))

(Dt~EQ(UaNTRACE/CURSOR

ù Th1s function is ùnd's CURsOROUTFN.
The function first checks if the cursor is currently being
traced; if so, it replaces thù tracing biiaap aith ahat is
under it and then turns tracing off by unadvislng
6ETNOUSESTATE and setting thù TliCIK ainda propertj of
øTRACEWINOoOù TO NIL.)

(if (VIN~PnOP ùTRACEWINOONø(QUOTE TliCIK))
then (BITBLT ù0LOBITNAPPOSITIONù o o (scREENBIllNAP)
IPLUS CAR øffDRE6IONù)ùLAST-lRACE-xPOSù)
(IPLUS 1CADR ù:DREGIOffo )ùusT-TlicE-YPosù))
(WINOoePRoP ùlliCEMINOONù(QUOTE TRACIK)
NIL))

replace the original cursor shape)
(CURSOR T)

unadvise 6E~sESTATE)
(U~"'ISE (QUOTE 6ETNOUSESTAlE]))

The function SETUP/TRACE has a helper function that you must
also type in. It is TRACE/CURSOR:
(DEFINEQ (TliCE/CURSoR
[LANRli NIL

ù This functi: does thù actual BITBLTln of thù tracing
blteap. This functla Is cùlled after a GE f TATE, abl ù
tracing.)

(PRoG ( xpos IDIFFERENCE LAsTNOUsEZ ùTRACEWINnoNø ùRIGNTTRACE/OFF
[ypoo IDIFFERENCE LAsTNOUsEY ùTRACE*INr~ø ùNEIGnTTRACE/OfFSsEETiJ)))
ù If there Is an ùrror In thù function, ress thù riKbt
button to unodvlsù thù function. This ùill eep thù ac inù
fr: locking up.)

(If (LASTNOUSESTATE RIGiiT)

(if ~t1h~~~ (NUNAPuISE (QUOTE 6ElS~5ESlATE)))
Q xpoa ùLAST-TRACE-XP0sù
(KEO ,pea ùLAsl-TeACE-YPOSùj)
thùn

ù Restoro ahùt ~s undùr the eld pooltla of thù trùcù
OilUp)

(SITGLY ùOLliIllnApposITIGùù o o (IREE5IlliA~)

ù2A SIMPLE lNTE~CJ\OHS WITH THE CURSOR. A BtTMAP. AflO A WINDOW
1

F,
FUNCTIONS FOR "TRACING THE CURSOR"

IPLUS CAR ùil

IPLUS CADR ù:DDRRESEGISIrnù2ùLASTTRAC

ù sùvù ùb&t ù111 bù undùr thù position of thù nee trùcù
biteap)

(51 TILT SCREENBITNAP)
[IPLUS (CAR ùaDREGIaù)
xpos)

(IPLUS ùvNDREGIoaù O O)

BIfflLT the tracG blt:p onto thù nùù position of thù
eouse.)

(8ITBLT ùTRACEBITNAPø O O ~5CREENBITNAP)
(IPLUS (CAR ùilDRE ION")

(fPLUS (CADS ùffORE6IONù)
ypos

NIL NIL YE INPUT)

(ONDTE P liT))

ù Savu the current position as the last trace position.)

(SETQ ùLAST-TRACE-xPDSù xpos
(SETQ "LAST-TRACE-YPOSø ypos

The helper function for UHTRACE/CURSOR, called
UNDO/TRACE/DATA, must also be added to the environment:
(DEFINEQ (UNDo/TRACE/DATA
[LISA NIL

ù The purpose of this function is to turn tracing off and
to free up the global variables used to trace the bitaap, so
that thej can be garbage collected.)

Check if the cursor is currently being traced.
It so, turn it off.)

UiTRACE/CURSoR)

WINDoNPRDP øTliCE*IN~ø(uTE CURSDRINFN)
NIL)

(WINDo*PRDP øTRACEwINDDNø(uTE CUR~R0UTFN)
NIL)

SETQ "TRACEBITsAPø NIL)
SETQ ùRIGNTTlicE/oFFsETù NIL)
SETQ ùHEIGHTTRACE/OFFSETù NIL)
SETQ ùOLDBITliPP0SITIDNù NIL)
SETQ øTRACE*I~ø NIL)

ù Turn GCGAG on)

(6C6A6 TJ))

Finally, if you inCluded the WlNDOWPROP to allow the user to
place the bitmap in the window by pressing a mouse button, you
must also type this function:

(D[E~DEAQ, ùnd)
UNADVISE (SETNDUSESTATE))

fBITBLT ùTliCEBITNAPù O O SCREENBIlNAP)
(IPLUS (CA 0Nù)
xpo

(IPLUS (CADR ùiDREGIONù)
ypos)

NIL NIL (UTE INPUT)
(ATE PAINT]

That's all the functions!

SIMPLE INTERAcTioNs NITH THE cuRsoR, A BITMAP, AND A WIND0W 42 S

p

RUNNING THE FuNcTlGh5

42.5 Running the Functions

To run the functions you just typed in, first set a variable to a
window by typing something like
(SETQ EXMPLE.wIN~ (CRœATEI))

into the Jnterlisp-D Executive window, and sweeping out a new
window. No'rv, set a variable to a bitmap, by typing, perhaps,
(SETQ ExlPLE.BTn (œDITl))
Type

(Estab1isfl'Trsce'Oo~ EXlPLE.WIN~ EXlPLE.BTK))
When you move the cursor into the window, the cursor will drag
the bitmap.

(Note: If you want to be able to make menu selections while
tracing the cursor, make sure that the hotspot of the cursor is set
to the extreme right of the bitmap. Otherwise, the menu will be
destroyed by the BITSLTs of the trace functions.)
To stop tracing, either

ù move the mouse cursor out of the window;
ù press the right mouse button;
ù call the function UNTRACE/CURS0R.

u.6 SIMPLE lNTEPACT~NS WITH THE CURSOR. A SITMAP. AND A WlN00W



     ----- Next Message -----

Date: 19 Dec 91 17:30 PST
From: sybalsky:PARC:Xerox
To: sybalsky
Message-ID: <<91Dec19.173105pst.43009@origami.parc.xerox.com>.?::>

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-----RFC822 headers---->

r fi. OTMER RœFERENCES THAT WILL
8E USEFUL TO YOU

Here are some references to works that will be useful to you in
addition to this primer. Some of these you have already been
referred to, such as:

ù The InterlispùD Reference Manual
ù The Library Packages Manual
ù The User's Guide to SKETCH
ù Thell86orllO8User'sGuide

In addition, you can learn more about LISP with the books:
ù Interlisp-D: The languago and its usage by Steven
H. Kaisler. This book was published in 1986 by John Wiley and
Sons, NY.

ù Essential LISP by John Anderson, Albert Corbett, and Brian
Reiser. This book was published in 1986 by Addison Wesley
Publishing Company, Reading, MA. It was informed by research
on how beginners learn LISP.

ù The Little Lisper by Daniel P. Friedman and Matthias
Felleisen. The second edition of this book was published in 1986
by SRA Associates, Chicago. This book is a deceptively simple
introduction to recursive programming and the flexible data
structures provided by LISP.

ù LISP by Patrick Winston and Berthold Horn. The second edition
of this book was published in 1985 by the Addison Wesley
Publishing Company, Reading, MA.

ù LISP: A Gentle Introduction to Syabolic
Coaputation by David S. Touretzky. This book was published
in 1984 by the Harper and Row Publishing Company, NY.

Finally, there are three articles about the Interlisp Programming
environment:

ù Poaer Tools Tor PrograffaersbyBeauSheil. It appeared
in Datamation in February, 1983, Pages 131 - 144.
ù The Interlisp Prograffaing Environaent by Warren
Teitelman and Larry Masinter. It appeared in April, 1981, in lEEE
Computer, Volume 14:1, Pages 25 - 34.

ù Prograaùing In an Interactive Environaentù the
LISP Experience by Erik Sandewall. It appeared in March,
1978, in the ACM Computing Surveys, Volume 10:1, pages 35 -
71.

Each of these articles was reprinted in the book Interactive
Prog raùùl ng Envl ronaents by David R. Barstow, Howard E.

0THER REFERENCES THAT WILL BE USEFuL T0 You 441
I

OTHER REFERENCES THAT WILL BE USEFUL TO YOU

Shrobe, and Erik Sandewail. This book was published in 1984 by
McGraw Hill, NY. The first article can be found on pages 19 - 30,
the second on pages 83 - 96, and the third on pages 31 80.

J:'

ill OTHER REFERE~E5 THAT WILL 55 usEFuL TO You

I



     ----- End Forwarded Messages -----
End of message
-TIMESROMAN
-

-TIMESROMAN
-VH(DEFAULTFONT 1 (GACHA 10) (GACHA 8) (TERMINAL 8) (POSTSCRIPT (GACHA 8)))
-
ãO

ãmzº
\ No newline at end of file

From 6f06621835bd1eaa1e926b14929e798643cd4efa Mon Sep 17 00:00:00 2001
From: Bill Stumbo <wstumbo@charter.net>
Date: Mon, 1 Dec 2025 18:11:32 -0500
Subject: [PATCH 17/20] Remove markdown from titles and other minor cleanup
 (#2394)

* Update .github/ISSUE_TEMPLATE/what_people_are_saying.yml
Markdown in titles is not rendered. --  Remove markdown from titles and other minor cleanup
---
 .github/ISSUE_TEMPLATE/primer.yml                 | 4 ++--
 .github/ISSUE_TEMPLATE/what_people_are_saying.yml | 8 ++++----
 2 files changed, 6 insertions(+), 6 deletions(-)

diff --git a/.github/ISSUE_TEMPLATE/primer.yml b/.github/ISSUE_TEMPLATE/primer.yml
index 016db1a8..9fea67a1 100644
--- a/.github/ISSUE_TEMPLATE/primer.yml
+++ b/.github/ISSUE_TEMPLATE/primer.yml
@@ -1,6 +1,6 @@
-name: Report an issue with the **Medley Interlisp for the Newcomer** primer
+name: Report an issue with the "Medley Interlisp for the Newcomer" primer
 description: Use this template to report issues or make suggestions.
-title: Title of your issue
+title: "[Primer] <short title here>"
 labels: 
   - primer
   - documentation
diff --git a/.github/ISSUE_TEMPLATE/what_people_are_saying.yml b/.github/ISSUE_TEMPLATE/what_people_are_saying.yml
index f4ccb337..c3826748 100644
--- a/.github/ISSUE_TEMPLATE/what_people_are_saying.yml
+++ b/.github/ISSUE_TEMPLATE/what_people_are_saying.yml
@@ -1,6 +1,6 @@
-name: "New entry for **What People Are Saying**"
-description: "Suggest a new entry for the **What People are Saying** page"
-title: "What People are Saying suggestion"
+name: New "What People Are Saying" entry
+description: 'Suggest a new entry for the "What People Are Saying" page'
+title: "What People Are Saying suggestion"
 body:
   - type: dropdown
     id: contentType
@@ -24,7 +24,7 @@ body:
     id: additionalInformation
     attributes:
       label:  Additional information
-      description: "Use this space to supply any addiitonal information on the suggested item."
+      description: "Use this space to supply any additional information on the suggested item."
     validations:
       required: false
   - type: markdown

From 140f76216c2a5aed7b3017458e3b86df16d8af11 Mon Sep 17 00:00:00 2001
From: Larry Masinter <lmm@acm.org>
Date: Mon, 1 Dec 2025 16:06:07 -0800
Subject: [PATCH 18/20] Really revert BACKGROUND-YIELD to CAUSEINTERRUPT until
 Maiko fixed

---
 lispusers/BACKGROUND-YIELD      |  15 +++++++--------
 lispusers/BACKGROUND-YIELD.LCOM | Bin 1239 -> 1215 bytes
 2 files changed, 7 insertions(+), 8 deletions(-)

diff --git a/lispusers/BACKGROUND-YIELD b/lispusers/BACKGROUND-YIELD
index aa634972..00d4ded4 100644
--- a/lispusers/BACKGROUND-YIELD
+++ b/lispusers/BACKGROUND-YIELD
@@ -1,12 +1,12 @@
 (DEFINE-FILE-INFO PACKAGE "INTERLISP" READTABLE "INTERLISP" BASE 10)
 
-
(FILECREATED " 9-Nov-2025 11:52:07" {DSK}<Users>larry>il>MEDLEY>LISPUSERS>BACKGROUND-YIELD.;2
 1882   
+
(FILECREATED "28-Jul-2023 09:49:24" {DSK}<home>larry>il>medley>lispusers>BACKGROUND-YIELD.;2
 1770   
 
       :EDIT-BY "lmm"
 
       :CHANGES-TO (FNS BACKGROUND-YIELD)
 
-      :PREVIOUS-DATE "28-Jul-2023 09:49:24" {DSK}<Users>larry>il>MEDLEY>LISPUSERS>BACKGROUND-YIELD.;1
+      :PREVIOUS-DATE "14-Nov-2021 22:05:58" {DSK}<home>larry>il>medley>lispusers>BACKGROUND-YIELD.;1
 )
 
 
@@ -26,14 +26,13 @@
 (DEFINEQ
 
 (BACKGROUND-YIELD

-  [LAMBDA NIL
                                                (* ; "Edited  9-Nov-2025 11:50 by lmm")


-                                                             (* ; "Edited 28-Jul-2023 09:11 by lmm")


+  [LAMBDA NIL
                                                (* ; "Edited 28-Jul-2023 09:11 by lmm")


                                                            (* ; "Edited 20-Sep-2021 11:37 by larry")

     (LET ((\BACKGROUND T))
-         (DECLARE
 (SPECVARS \BACKGROUND)
-                (GLOBALVARS BACKGROUND-YIELD))
+         (DECLARE
 (SPECVARS \BACKGROUND))
          (IF
 (FIXP BACKGROUND-YIELD)
-             THEN
 (SUBRCALL YIELD BACKGROUND-YIELD])
+             THEN
 (SUBRCALL YIELD BACKGROUND-YIELD)
+                  (SUBRCALL CAUSE-INTERRUPT])
 
 (INIT-YIELD

   [LAMBDA (ONP)
                                        (* ; "Edited 19-Sep-2021 13:32 by larry")

@@ -52,5 +51,5 @@
 
 (RPAQQ BACKGROUND-YIELD
 833333)
 (DECLARE%: DONTCOPY
-  (FILEMAP (NIL (808 1767 (BACKGROUND-YIELD 818 . 1383) (INIT-YIELD 1385 . 1765)))))
+  (FILEMAP (NIL (806 1655 (BACKGROUND-YIELD 816 . 1271) (INIT-YIELD 1273 . 1653)))))
 STOP
diff --git a/lispusers/BACKGROUND-YIELD.LCOM b/lispusers/BACKGROUND-YIELD.LCOM
index c44c58fca41aea5dc4fafa0b867de795b1733bec..3e46012bd7930d3cffd5490382a1dd3abd3e84e5 100644
GIT binary patch
delta 429
zcmcc4xu0`FxQLO3u2*S}u91O}v4Vl6m5HU5k;%kt$@+}^+*G@q#G;}~yUZNB+|-nu
z)JnUY%;JL5;?$yIJ10kHZ}%YoP(K&lNKaQE7d>kuO$8+*BNW37O|1+Jl@yYSQj_y@
z3o>(3QxuXj67$kii&d?-6wr-O$jnnvatrnGQ2-iK4|kNFo}Q9IN@596GdA;0l{C3D
z+&q0;or7E*LtI^eim>=dNuk;$*t^z-XkYQcy`^AiZf-Dn5~GW?p^2_vei<mJ41rFx
zGBC9=wNO&vBF5y&LQK|X3T_I97{1n2U=U(tWMIe?WMl|5R@lNBSbK@Fb`paCgP*4l
M7Z7ir!DP<_08q?%ssI20

delta 439
zcmdnbd7X1YxQK$Ku3vtcu91O}se+-Qm8p@Hf%(L2$@<XZ)S_a$oW!D{O1sP)J6~59
zAJ<4bAJ5=`&|ue~U^^#AXK(i)|4=^{-AGSY9~V7qBTWS*1rsFG%&ZKJtc*>R6q1Tk
zlk;;6GILT>6u6Qz67$kii&d=@(2Y>Y%u`Tu3<wBTP%x=Sn4_nsr=*aQSOV0H#e5TU
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From ba8d9b446123684de799fb84981c5bd737c12126 Mon Sep 17 00:00:00 2001
From: Matt Heffron <heffron@alumni.caltech.edu>
Date: Wed, 3 Dec 2025 16:05:08 -0800
Subject: [PATCH 19/20] LOOP preposition INTO fixed (#2401)

cl::symbol-macrolet had mapcar arguments in Interlisp order, not CL order.
---
 sources/XCL-LOOP       | 117 +++++++++++++++++++++--------------------
 sources/XCL-LOOP.DFASL | Bin 40760 -> 40758 bytes
 2 files changed, 59 insertions(+), 58 deletions(-)

diff --git a/sources/XCL-LOOP b/sources/XCL-LOOP
index c6a90142..8f818518 100644
--- a/sources/XCL-LOOP
+++ b/sources/XCL-LOOP
@@ -1,12 +1,12 @@
 (DEFINE-FILE-INFO PACKAGE (DEFPACKAGE "LOOP" (USE "LISP" "XCL")) READTABLE "XCL" BASE 10)
 
-
(il:filecreated "14-Jun-2024 23:09:54" il:|{DSK}<home>matt>Interlisp>medley>sources>XCL-LOOP.;4|
 62255  
+
(il:filecreated " 3-Dec-2025 12:36:20" il:|{DSK}<home>matt>Interlisp>medley>sources>XCL-LOOP.;3|
 62357  
 
       :edit-by "mth"
 
-      :changes-to (il:functions default-type default-value)
+      :changes-to (il:functions cl::symbol-macrolet)
 
-      :previous-date " 8-Apr-2024 19:38:27" il:|{DSK}<home>matt>Interlisp>medley>sources>XCL-LOOP.;2|
+      :previous-date " 3-Dec-2025 11:51:58" il:|{DSK}<home>matt>Interlisp>medley>sources>XCL-LOOP.;2|
 )
 
 
@@ -1202,12 +1202,13 @@
 (defun stray-of-type-error
 ()
    (loop-error
 "OF-TYPE keyword should be followed by a type spec."))
 
-(defmacro cl::symbol-macrolet
 (vardefs &body body)
    (il:* il:\; "Edited 24-Mar-2024 21:46 by lmm")

+(defmacro cl::symbol-macrolet
 (vardefs &body body)
    (il:* il:\; "Edited  3-Dec-2025 12:34 by mth")


+                                                      (il:* il:\; "Edited 24-Mar-2024 21:46 by lmm")

 
    (il:* il:|;;| "")

 
-   `(progn ,@(il:subpair (cons 'setq (mapcar vardefs #'car))
-                    (cons 'setf (mapcar vardefs #'cadr))
+   `(progn ,@(il:subpair (cons 'setq (mapcar #'car vardefs))
+                    (cons 'setf (mapcar #'cadr vardefs))
                     body)))
 
 (defun type-spec?
 ()
@@ -1426,56 +1427,56 @@
 ;; (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE
 ;; OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.")
 (il:declare\: il:dontcopy
-  (il:filemap (nil (6777 6862 (%keyword 6777 . 6862)) (6864 7047 (%list 6864 . 7047)) (7049 8306 (
-accumulate-in-list 7049 . 8306)) (8308 9988 (accumulation-clause 8308 . 9988)) (9990 10224 (
-accumulator-kind 9990 . 10224)) (10226 12115 (accumulator-spec 10226 . 12115)) (12117 12586 (
-along-with 12117 . 12586)) (12588 13080 (always-never-thereis-clause 12588 . 13080)) (13082 13441 (
-ambiguous-loop-result-error 13082 . 13441)) (13443 13658 (append-context 13443 . 13658)) (13737 14114 
-(bindings 13737 . 14114)) (14116 14456 (bound-variables 14116 . 14456)) (14458 14548 (by-step-fun 
-14458 . 14548)) (14550 14656 (car-type 14550 . 14656)) (14658 14764 (cdr-type 14658 . 14764)) (14766 
-15163 (check-multiple-bindings 14766 . 15163)) (15165 15385 (cl-external-p 15165 . 15385)) (15387 
-15516 (clause* 15387 . 15516)) (15518 15918 (clause1 15518 . 15918)) (15920 16077 (compound-forms* 
-15920 . 16077)) (16079 16203 (compound-forms+ 16079 . 16203)) (16205 17463 (conditional-clause 16205
- . 17463)) (17465 18176 (constant-bindings 17465 . 18176)) (18178 18549 (constant-function-p 18178 . 
-18549)) (18551 18745 (constant-vector 18551 . 18745)) (18747 18838 (constant-vector-p 18747 . 18838)) 
-(18840 19032 (d-var-spec-p 18840 . 19032)) (19034 19264 (d-var-spec1 19034 . 19264)) (19266 19591 (
-d-var-type-spec 19266 . 19591)) (19593 20153 (declarations 19593 . 20153)) (20155 20265 (
-default-binding 20155 . 20265)) (20267 20880 (default-bindings 20267 . 20880)) (20882 21530 (
-default-type 20882 . 21530)) (21532 22302 (default-value 21532 . 22302)) (22304 23794 (
-destructuring-multiple-value-bind 22304 . 23794)) (23796 25081 (destructuring-multiple-value-setq 
-23796 . 25081)) (25083 25610 (dispatch-for-as-subclause 25083 . 25610)) (25612 25681 (do-clause 25612
- . 25681)) (25683 25859 (empty-p 25683 . 25859)) (25861 26135 (enumerate 25861 . 26135)) (26137 27863 
-(extended-loop 26137 . 27863)) (27865 28036 (fill-in 27865 . 28036)) (28038 28115 (finally-clause 
-28038 . 28115)) (28117 28235 (for 28117 . 28235)) (28237 29593 (for-as-across-subclause 28237 . 29593)
-) (29595 30517 (for-as-arithmetic-possible-prepositions 29595 . 30517)) (30519 31235 (
-for-as-arithmetic-step-and-test-functions 30519 . 31235)) (31237 33182 (for-as-arithmetic-subclause 
-31237 . 33182)) (33184 33634 (for-as-being-subclause 33184 . 33634)) (33636 34852 (for-as-clause 33636
- . 34852)) (34854 36382 (for-as-equals-then-subclause 34854 . 36382)) (36384 36662 (for-as-fill-in 
-36384 . 36662)) (36664 38630 (for-as-hash-subclause 36664 . 38630)) (38632 38878 (
-for-as-in-list-subclause 38632 . 38878)) (38880 40373 (for-as-on-list-subclause 38880 . 40373)) (40375
- 42077 (for-as-package-subclause 40375 . 42077)) (42079 42310 (for-as-parallel-p 42079 . 42310)) (
-42312 42460 (form-or-it 42312 . 42460)) (42462 42581 (form1 42462 . 42581)) (42583 42683 (
-gensym-ignorable 42583 . 42683)) (42685 42796 (globally-special-p 42685 . 42796)) (42798 42977 (
-hash-d-var-spec 42798 . 42977)) (42979 43060 (initially-clause 42979 . 43060)) (43062 43219 (
-invalid-accumulator-combination-error 43062 . 43219)) (43221 43838 (keyword1 43221 . 43838)) (43840 
-44310 (keyword? 43840 . 44310)) (44312 44421 (let-form 44312 . 44421)) (44423 44577 (loop-error 44423
- . 44577)) (44579 44770 (loop-finish-test-forms 44579 . 44770)) (44772 44924 (loop-warn 44772 . 44924)
-) (44926 45130 (lp 44926 . 45130)) (45132 45569 (main-clause* 45132 . 45569)) (45571 45667 (mapappend 
-45571 . 45667)) (45669 46199 (multiple-value-list-argument-form 45669 . 46199)) (46201 46594 (
-multiple-value-list-form-p 46201 . 46594)) (46596 46934 (name-clause? 46596 . 46934)) (46936 47215 (
-one 46936 . 47215)) (47217 48862 (ordinary-bindings 47217 . 48862)) (48864 49081 (preposition1 48864
- . 49081)) (49083 49284 (preposition? 49083 . 49284)) (49286 49446 (psetq-forms 49286 . 49446)) (49448
- 49628 (quoted-form-p 49448 . 49628)) (49630 49885 (quoted-object 49630 . 49885)) (49887 50691 (
-reduce-redundant-code 49887 . 50691)) (50693 50922 (repeat-clause 50693 . 50922)) (50924 51014 (
-return-clause 50924 . 51014)) (51016 51851 (selectable-clause 51016 . 51851)) (51853 52004 (
-simple-loop 51853 . 52004)) (52006 52084 (simple-var-p 52006 . 52084)) (52086 52270 (simple-var1 52086
- . 52270)) (52272 52379 (stray-of-type-error 52272 . 52379)) (52381 52666 (cl::symbol-macrolet 52381
- . 52666)) (52668 53102 (type-spec? 52668 . 53102)) (53104 53170 (until-clause 53104 . 53170)) (53172 
-53753 (using-other-var 53172 . 53753)) (53755 53949 (variable-clause* 53755 . 53949)) (53951 54055 (
-while-clause 53951 . 54055)) (54057 54236 (with 54057 . 54236)) (54238 54683 (with-accumulators 54238
- . 54683)) (54685 54935 (with-binding-forms 54685 . 54935)) (54937 56168 (with-clause 54937 . 56168)) 
-(56170 56429 (with-iterator-forms 56170 . 56429)) (56431 57578 (with-list-accumulator 56431 . 57578)) 
-(57580 58017 (with-loop-context 57580 . 58017)) (58019 59257 (with-numeric-accumulator 58019 . 59257))
- (59259 59780 (with-temporaries 59259 . 59780)) (59782 60062 (zero 59782 . 60062)) (60064 60197 (loop 
-60064 . 60197)))))
+  (il:filemap (nil (6770 6855 (%keyword 6770 . 6855)) (6857 7040 (%list 6857 . 7040)) (7042 8299 (
+accumulate-in-list 7042 . 8299)) (8301 9981 (accumulation-clause 8301 . 9981)) (9983 10217 (
+accumulator-kind 9983 . 10217)) (10219 12108 (accumulator-spec 10219 . 12108)) (12110 12579 (
+along-with 12110 . 12579)) (12581 13073 (always-never-thereis-clause 12581 . 13073)) (13075 13434 (
+ambiguous-loop-result-error 13075 . 13434)) (13436 13651 (append-context 13436 . 13651)) (13730 14107 
+(bindings 13730 . 14107)) (14109 14449 (bound-variables 14109 . 14449)) (14451 14541 (by-step-fun 
+14451 . 14541)) (14543 14649 (car-type 14543 . 14649)) (14651 14757 (cdr-type 14651 . 14757)) (14759 
+15156 (check-multiple-bindings 14759 . 15156)) (15158 15378 (cl-external-p 15158 . 15378)) (15380 
+15509 (clause* 15380 . 15509)) (15511 15911 (clause1 15511 . 15911)) (15913 16070 (compound-forms* 
+15913 . 16070)) (16072 16196 (compound-forms+ 16072 . 16196)) (16198 17456 (conditional-clause 16198
+ . 17456)) (17458 18169 (constant-bindings 17458 . 18169)) (18171 18542 (constant-function-p 18171 . 
+18542)) (18544 18738 (constant-vector 18544 . 18738)) (18740 18831 (constant-vector-p 18740 . 18831)) 
+(18833 19025 (d-var-spec-p 18833 . 19025)) (19027 19257 (d-var-spec1 19027 . 19257)) (19259 19584 (
+d-var-type-spec 19259 . 19584)) (19586 20146 (declarations 19586 . 20146)) (20148 20258 (
+default-binding 20148 . 20258)) (20260 20873 (default-bindings 20260 . 20873)) (20875 21523 (
+default-type 20875 . 21523)) (21525 22295 (default-value 21525 . 22295)) (22297 23787 (
+destructuring-multiple-value-bind 22297 . 23787)) (23789 25074 (destructuring-multiple-value-setq 
+23789 . 25074)) (25076 25603 (dispatch-for-as-subclause 25076 . 25603)) (25605 25674 (do-clause 25605
+ . 25674)) (25676 25852 (empty-p 25676 . 25852)) (25854 26128 (enumerate 25854 . 26128)) (26130 27856 
+(extended-loop 26130 . 27856)) (27858 28029 (fill-in 27858 . 28029)) (28031 28108 (finally-clause 
+28031 . 28108)) (28110 28228 (for 28110 . 28228)) (28230 29586 (for-as-across-subclause 28230 . 29586)
+) (29588 30510 (for-as-arithmetic-possible-prepositions 29588 . 30510)) (30512 31228 (
+for-as-arithmetic-step-and-test-functions 30512 . 31228)) (31230 33175 (for-as-arithmetic-subclause 
+31230 . 33175)) (33177 33627 (for-as-being-subclause 33177 . 33627)) (33629 34845 (for-as-clause 33629
+ . 34845)) (34847 36375 (for-as-equals-then-subclause 34847 . 36375)) (36377 36655 (for-as-fill-in 
+36377 . 36655)) (36657 38623 (for-as-hash-subclause 36657 . 38623)) (38625 38871 (
+for-as-in-list-subclause 38625 . 38871)) (38873 40366 (for-as-on-list-subclause 38873 . 40366)) (40368
+ 42070 (for-as-package-subclause 40368 . 42070)) (42072 42303 (for-as-parallel-p 42072 . 42303)) (
+42305 42453 (form-or-it 42305 . 42453)) (42455 42574 (form1 42455 . 42574)) (42576 42676 (
+gensym-ignorable 42576 . 42676)) (42678 42789 (globally-special-p 42678 . 42789)) (42791 42970 (
+hash-d-var-spec 42791 . 42970)) (42972 43053 (initially-clause 42972 . 43053)) (43055 43212 (
+invalid-accumulator-combination-error 43055 . 43212)) (43214 43831 (keyword1 43214 . 43831)) (43833 
+44303 (keyword? 43833 . 44303)) (44305 44414 (let-form 44305 . 44414)) (44416 44570 (loop-error 44416
+ . 44570)) (44572 44763 (loop-finish-test-forms 44572 . 44763)) (44765 44917 (loop-warn 44765 . 44917)
+) (44919 45123 (lp 44919 . 45123)) (45125 45562 (main-clause* 45125 . 45562)) (45564 45660 (mapappend 
+45564 . 45660)) (45662 46192 (multiple-value-list-argument-form 45662 . 46192)) (46194 46587 (
+multiple-value-list-form-p 46194 . 46587)) (46589 46927 (name-clause? 46589 . 46927)) (46929 47208 (
+one 46929 . 47208)) (47210 48855 (ordinary-bindings 47210 . 48855)) (48857 49074 (preposition1 48857
+ . 49074)) (49076 49277 (preposition? 49076 . 49277)) (49279 49439 (psetq-forms 49279 . 49439)) (49441
+ 49621 (quoted-form-p 49441 . 49621)) (49623 49878 (quoted-object 49623 . 49878)) (49880 50684 (
+reduce-redundant-code 49880 . 50684)) (50686 50915 (repeat-clause 50686 . 50915)) (50917 51007 (
+return-clause 50917 . 51007)) (51009 51844 (selectable-clause 51009 . 51844)) (51846 51997 (
+simple-loop 51846 . 51997)) (51999 52077 (simple-var-p 51999 . 52077)) (52079 52263 (simple-var1 52079
+ . 52263)) (52265 52372 (stray-of-type-error 52265 . 52372)) (52374 52768 (cl::symbol-macrolet 52374
+ . 52768)) (52770 53204 (type-spec? 52770 . 53204)) (53206 53272 (until-clause 53206 . 53272)) (53274 
+53855 (using-other-var 53274 . 53855)) (53857 54051 (variable-clause* 53857 . 54051)) (54053 54157 (
+while-clause 54053 . 54157)) (54159 54338 (with 54159 . 54338)) (54340 54785 (with-accumulators 54340
+ . 54785)) (54787 55037 (with-binding-forms 54787 . 55037)) (55039 56270 (with-clause 55039 . 56270)) 
+(56272 56531 (with-iterator-forms 56272 . 56531)) (56533 57680 (with-list-accumulator 56533 . 57680)) 
+(57682 58119 (with-loop-context 57682 . 58119)) (58121 59359 (with-numeric-accumulator 58121 . 59359))
+ (59361 59882 (with-temporaries 59361 . 59882)) (59884 60164 (zero 59884 . 60164)) (60166 60299 (loop 
+60166 . 60299)))))
 il:stop
diff --git a/sources/XCL-LOOP.DFASL b/sources/XCL-LOOP.DFASL
index 7a16e7c7f3f6bc5abbf252e5b85c733385ddb05c..470e4f3100bd78b66c3e9cbc2845f2d9daea79ea 100644
GIT binary patch
delta 352
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zMh0ANj=?^t%ED7q@=}Xa5-W8Sj1_<yQgf41ixfb*bl}=HZVluW!DilMDLyks<IRD5
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Vf?x|CutBKJk7oq2F@O309{@H!cZ~o5

delta 378
zcmdnCk7>s~rU_BeCS1Y!rA5i93Tc@+sS3$Osfi`2DGG)rx?ZJux<&>@CJIKzRtA<<
zrY2l&j=?^t%G`=FQxYq6fXWqs%2O3U>UBUG3=OS}3^(o$<Q2hY(qsibGj<b(xih9Q
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a@Qix?hk{^J9<o8G%@1b;u`z%B{~rKd8)>ot


From e43fb61beea199b662f4e91a5a269003db517ca9 Mon Sep 17 00:00:00 2001
From: rmkaplan <69548581+rmkaplan@users.noreply.github.com>
Date: Thu, 4 Dec 2025 17:31:47 -0800
Subject: [PATCH 20/20] Rmk140  Sketch uses new font interfaces (#2358)

* Upgrade Sketch to new font interfaces

* Tedit changes so that TEDIT.GETSYNTAX conforms to documentation

* Remove RUBOUT interrupt

* TEDIT-FNKEYS:  uses keywords for action names

* LLKEY:  Change keybindings for DELETE and LOOKS

* SEDIT-COMMANDS:  Shift-DELELETE is wordelete.backwards

* Sketch implements arrow keys
---
 library/sketch/SKETCH                  |  426 +++++----
 library/sketch/SKETCH-EDIT             |  875 +++++++++---------
 library/sketch/SKETCH-EDIT.LCOM        |  Bin 26502 -> 27229 bytes
 library/sketch/SKETCH-ELEMENTS         | 1141 ++++++++++-------------
 library/sketch/SKETCH-ELEMENTS.LCOM    |  Bin 147391 -> 143344 bytes
 library/sketch/SKETCH.LCOM             |  Bin 161521 -> 161932 bytes
 library/tedit/TEDIT-COMMAND            |   19 +-
 library/tedit/TEDIT-COMMAND.LCOM       |  Bin 5752 -> 5626 bytes
 library/tedit/TEDIT-FNKEYS             | 1164 ++++++++++++------------
 library/tedit/TEDIT-FNKEYS.LCOM        |  Bin 38915 -> 39536 bytes
 library/tedit/TEDIT-RELEASENOTES.TEDIT |  Bin 40457 -> 41868 bytes
 lispusers/TEDIT-PF-SEE                 |  227 ++---
 lispusers/TEDIT-PF-SEE.LCOM            |  Bin 5498 -> 6127 bytes
 sources/AINTERRUPT                     |   41 +-
 sources/AINTERRUPT.LCOM                |  Bin 11907 -> 11865 bytes
 sources/LLKEY                          |   72 +-
 sources/LLKEY.LCOM                     |  Bin 66413 -> 66406 bytes
 sources/SEDIT-COMMANDS                 |  425 +++++----
 sources/SEDIT-COMMANDS.DFASL           |  Bin 52976 -> 52764 bytes
 19 files changed, 2117 insertions(+), 2273 deletions(-)

diff --git a/library/sketch/SKETCH b/library/sketch/SKETCH
index 76c5e334..552659c7 100644
--- a/library/sketch/SKETCH
+++ b/library/sketch/SKETCH
@@ -1,18 +1,21 @@
 (DEFINE-FILE-INFO PACKAGE "INTERLISP" READTABLE "INTERLISP" BASE 10)
 
-
(FILECREATED " 5-Dec-2023 00:44:13" {WMEDLEY}<library>sketch>SKETCH.;5
 491114 
+
(FILECREATED "30-Nov-2025 10:10:57" {WMEDLEY}<library>SKETCH>SKETCH.;11
 493235 
 
       :EDIT-BY rmk
 
       :CHANGES-TO (VARS SKETCHCOMS)
+                  (FNS UPDATE-SKETCH EDIT-SKETCH)
 
-      :PREVIOUS-DATE "19-Oct-2023 23:55:27" {WMEDLEY}<library>sketch>SKETCH.;4)
+      :PREVIOUS-DATE " 8-Nov-2025 12:19:12" {WMEDLEY}<library>SKETCH>SKETCH.;10)
 
 
 (PRETTYCOMPRINT SKETCHCOMS)
 
 (RPAQQ SKETCHCOMS

-       [[DECLARE%: FIRST DOCOPY DONTEVAL@LOAD
+       [(FILES (SYSLOAD)
+               TEDIT)
+        [DECLARE%: FIRST DOCOPY DONTEVAL@LOAD
                (P (PROG ((NOTECARDSFLG (GETPROP 'NOTECARDS 'FILEDATES))
                          (SKETCHFLG (AND (BOUNDP 'ALL.SKETCHES)
                                          ALL.SKETCHES))
@@ -48,17 +51,16 @@ To abort loading the new version of Sketch, type '^'."]
         (FNS SKETCH SKETCH.FROM.A.FILE SKETCHW.CREATE SKETCH.RESET SKETCHW.FIG.CHANGED 
              SK.WINDOW.TITLE EDITSLIDE EDITSKETCH SK.PUT.ON.FILE SK.OUTPUT.FILE.NAME SKETCH.PUT 
              SK.GET.FROM.FILE SK.INCLUDE.FILE SK.GET.IMAGEOBJ.FROM.FILE SKETCH.GET 
-             ADD.SKETCH.TO.VIEWER FILENAMELESSVERSION SK.ADD.ELEMENTS.TO.SKETCH SKETCH.SET.A.DEFAULT
-             SK.POPUP.SELECTIONFN GETSKETCHWREGION SK.ADD.ELEMENT SK.ADD.PRIORITY.ELEMENT.TO.SKETCH 
-             SK.ELTS.BY.PRIORITY SK.ORDER.ELEMENTS SK.ADD.PRIORITY.LOCAL.ELEMENT.TO.SKETCH 
-             SK.ADD.ELEMENTS SK.CHECK.WHENADDEDFN SK.APPLY.MENU.COMMAND SK.DELETE.ELEMENT1 
-             SK.MARK.DIRTY SK.MARK.UNDIRTY SK.MENU.AND.RETURN.FIELD SKETCH.SET.BRUSH.SHAPE 
-             SKETCH.SET.BRUSH.SIZE SKETCHW.CLOSEFN SK.CONFIRM.DESTRUCTION SKETCHW.OUTFN 
-             SKETCHW.REOPENFN MAKE.LOCAL.SKETCH MAP.SKETCHSPEC.INTO.VIEWER SKETCHW.REPAINTFN 
-             SKETCHW.REPAINTFN1 SK.DRAWFIGURE.IF SKETCHW.SCROLLFN SKETCHW.RESHAPEFN 
-             SK.UPDATE.EVENT.SELECTION LIGHTGRAYWINDOW SK.ADD.SPACES SK.SKETCH.MENU 
-             SK.CHECK.IMAGEOBJ.WHENDELETEDFN SK.APPLY.IMAGEOBJ.WHENDELETEDFN SK.RETURN.TTY 
-             SK.TAKE.TTY)
+             ADD.SKETCH.TO.VIEWER SK.ADD.ELEMENTS.TO.SKETCH SKETCH.SET.A.DEFAULT SK.POPUP.SELECTIONFN
+             GETSKETCHWREGION SK.ADD.ELEMENT SK.ADD.PRIORITY.ELEMENT.TO.SKETCH SK.ELTS.BY.PRIORITY 
+             SK.ORDER.ELEMENTS SK.ADD.PRIORITY.LOCAL.ELEMENT.TO.SKETCH SK.ADD.ELEMENTS 
+             SK.CHECK.WHENADDEDFN SK.APPLY.MENU.COMMAND SK.DELETE.ELEMENT1 SK.MARK.DIRTY 
+             SK.MARK.UNDIRTY SK.MENU.AND.RETURN.FIELD SKETCH.SET.BRUSH.SHAPE SKETCH.SET.BRUSH.SIZE 
+             SKETCHW.CLOSEFN SK.CONFIRM.DESTRUCTION SKETCHW.OUTFN SKETCHW.REOPENFN MAKE.LOCAL.SKETCH
+             MAP.SKETCHSPEC.INTO.VIEWER SKETCHW.REPAINTFN SKETCHW.REPAINTFN1 SK.DRAWFIGURE.IF 
+             SKETCHW.SCROLLFN SKETCHW.RESHAPEFN SK.UPDATE.EVENT.SELECTION LIGHTGRAYWINDOW 
+             SK.ADD.SPACES SK.SKETCH.MENU SK.CHECK.IMAGEOBJ.WHENDELETEDFN 
+             SK.APPLY.IMAGEOBJ.WHENDELETEDFN SK.RETURN.TTY SK.TAKE.TTY)
         (COMS                                                (* ; 
 
                                                             "fns for dealing with the sketch menu")

               (FNS SKETCH.COMMANDMENU SKETCH.COMMANDMENU.ITEMS CREATE.SKETCHW.COMMANDMENU 
@@ -242,6 +244,8 @@ To abort loading the new version of Sketch, type '^'."]
                            "Reads a file name and opens a sketch window onto the sketch it contains."
                                                               ]
         (VARS (BackgroundMenu))
+        (COMS (VARS SKETCHFILES)
+              (FNS UPDATE-SKETCH EDIT-SKETCH))
         (FILES SKETCH-OPS SKETCH-ELEMENTS SKETCH-EDIT SKETCH-OBJ SKETCH-BMELT)
         (DECLARE%: DONTEVAL@LOAD DOEVAL@COMPILE DONTCOPY (FILES (LOADCOMP)
                                                                 SKETCH-OPS SKETCH-ELEMENTS SKETCH-OBJ
@@ -260,13 +264,6 @@ To abort loading the new version of Sketch, type '^'."]
               (MACROS SK.SET.RECORD.LENGTHS.MACRO)
               (GLOBALVARS SKETCH.RECORD.LENGTHS)
               (P (SK.SET.RECORD.LENGTHS)))
-        [COMS                                                (* ; 
-
                     "to correct for a bug in the file package that marks LOADCOMPed file as changed")

-              (P (UNMARKASCHANGED 'SKETCH 'FILE)
-                 (UNMARKASCHANGED 'SKETCH-ELEMENTS 'FILE)
-                 (UNMARKASCHANGED 'SKETCH-OPS 'FILE)
-                 (UNMARKASCHANGED 'SKETCH-EDIT 'FILE)
-                 (UNMARKASCHANGED 'SKETCH-OBJ 'FILE]
         (COMS                                                (* ; 
 
                                                  "add sketch as option to file browser edit command")

               (FNS SK.ADD.EDIT.COMMAND.TO.FILE.BROWSER)
@@ -275,6 +272,9 @@ To abort loading the new version of Sketch, type '^'."]
                                                                              (NLAML)
                                                                              (LAMA SK.UNIONREGIONS 
                                                                                    SKETCH.CREATE])
+
+(FILESLOAD (SYSLOAD)
+       TEDIT)
 (DECLARE%: FIRST DOCOPY DONTEVAL@LOAD 
 
 [PROG ((NOTECARDSFLG (GETPROP 'NOTECARDS 'FILEDATES))
@@ -437,12 +437,13 @@ To abort loading the new version of Sketch, type '^'."]
           (RETURN NEWNAME])
 
 (SK.OUTPUT.FILE.NAME

-  [LAMBDA (SKETCHFILENAME)
                                   (* rrb " 5-May-86 10:45")

+  [LAMBDA (SKETCHFILENAME)
                                   (* ; "Edited  3-Nov-2025 15:05 by rmk")

+                                                             (* rrb " 5-May-86 10:45")

     (COND
-       ((STRPOS " " SKETCHFILENAME)                          (* don't put up dummy names that 
-
                                                             contain spaces)

+       ((STRPOS " " SKETCHFILENAME)                          (* ; 
+
                                                       "don't put up dummy names that contain spaces")

         NIL)
-       (T (FILENAMELESSVERSION
 SKETCHFILENAME])
+       (T (PACKFILENAME 'VERSION NIL 'BODY SKETCHFILENAME])
 
 (SKETCH.PUT

   [LAMBDA (FILENAME SKETCH VIEWER REGION SCALE GRID)
         (* ; "Edited  1-Feb-2022 09:17 by rmk")


@@ -640,13 +641,6 @@ To abort loading the new version of Sketch, type '^'."]
                                                                  (GETSKETCHPROP
 TOSKETCH 'VIEWS])
                     (PUTSKETCHPROP
 TOSKETCH SKPROP (GETSKETCHPROP
 ADDSKETCH SKPROP])
 
-(FILENAMELESSVERSION

-  [LAMBDA (FILENAME)
                                         (* rrb "29-Jan-86 15:57")

-          
-          (* strips the version number off of FILENAME if it has one.)

-
-    (PACKFILENAME (CONS 'VERSION (CONS NIL (UNPACKFILENAME FILENAME])
-
 (SK.ADD.ELEMENTS.TO.SKETCH

   [LAMBDA (ELTS SKW)
                                         (* rrb "10-Mar-86 16:50")

                                                              (* adds a list of elements to a sketch)

@@ -659,7 +653,9 @@ To abort loading the new version of Sketch, type '^'."]
                         (SK.ADD.ELEMENT
 ELT SKW])
 
 (SKETCH.SET.A.DEFAULT

-  [LAMBDA (SKW)
                                              (* rrb "14-Jul-86 13:43")

+  [LAMBDA (SKW)
                                              (* ; "Edited  6-Nov-2025 22:34 by rmk")

+                                                             (* rrb "14-Jul-86 13:43")

+                                                             (* ; "allows the user to set a default")

                                                              (* allows the user to set a default)

     (\CURSOR.IN.MIDDLE.MENU (create
 MENU
                                    ITEMS _ '[(Line SKETCH.SET.BRUSH.SIZE 
@@ -673,7 +669,8 @@ To abort loading the new version of Sketch, type '^'."]
                                                           (Add% arrowhead SK.SET.LINE.ARROWHEAD 
                                                    "Sets the arrowhead characteristics of new lines."
                                                                  )
-                                                          ("Mouse line specs" SK.SET.LINE.LENGTH.MODE 
+                                                          ("Mouse line specs" SK.SET.LINE.LENGTH.MODE
+                                                                 
                    "Sets whether the lines drawn with the middle mouse button connect to each other."
                                                                  )))
                                              (Arrowhead SK.SET.ARROWHEAD.LENGTH 
@@ -715,7 +712,8 @@ To abort loading the new version of Sketch, type '^'."]
                                                   (SUBITEMS ("Clockwise" SK.SET.ARC.DIRECTION.CW 
                                                 "Makes new arcs go around in the clockwise direction"
                                                                    )
-                                                         ("Counterclockwise" SK.SET.ARC.DIRECTION.CCW 
+                                                         ("Counterclockwise" SK.SET.ARC.DIRECTION.CCW
+                                                                
                                          "Makes new arcs go around in the counterclockwise direction"
                                                                 )))
                                              ("Input scale" SK.SET.INPUT.SCALE 
@@ -740,7 +738,8 @@ To abort loading the new version of Sketch, type '^'."]
 This will be slow for arcs and curves."]
                                    CENTERFLG _ T
                                    WHENSELECTEDFN _ (FUNCTION SK.POPUP.SELECTIONFN)
-                                   MENUFONT _ (SK.FONTNAMELIST (FONTCREATE BOLDFONT])
+                                   MENUFONT _ (FONTPROP (FONTCREATE BOLDFONT)
+                                                     'SPEC])
 
 (SK.POPUP.SELECTIONFN

   [LAMBDA (ITEM MENU)
                                        (* rrb " 3-Sep-85 14:27")

@@ -1348,12 +1347,13 @@ This will be slow for arcs and curves."]
 (DEFINEQ
 
 (SKETCH.COMMANDMENU

-  [LAMBDA (ITEMS TITLE)
                                      (* rrb "14-Jul-86 13:43")

+  [LAMBDA (ITEMS TITLE)
                                      (* ; "Edited  6-Nov-2025 22:36 by rmk")

+                                                             (* rrb "14-Jul-86 13:43")

     (create
 MENU
            ITEMS _ ITEMS
            CENTERFLG _ T
            WHENSELECTEDFN _ (FUNCTION SKETCHW.SELECTIONFN)
-           MENUFONT _ (SK.FONTNAMELIST (FONTCREATE BOLDFONT))
+           MENUFONT _ (FONTCREATE BOLDFONT)
            TITLE _ TITLE])
 
 (SKETCH.COMMANDMENU.ITEMS

@@ -6657,10 +6657,9 @@ This will be slow for arcs and curves."))
 (DEFINEQ
 
 (SKETCH.TITLE

-  [LAMBDA (SKW)
                                              (* rrb " 5-May-86 13:19")

-          
-          (* gets the title of the sketch being edited in SKW.)

-
+  [LAMBDA (SKW)                                              (* rrb " 5-May-86 13:19")

+                                                             (* gets the title of the sketch being 
+
                                                             edited in SKW.)

     (fetch
 (SKETCH
 SKETCHNAME) of
 (INSURE.SKETCH
 SKW])
 
 (SK.SHRINK.ICONCREATE

@@ -8594,6 +8593,43 @@ Otherwise, type '^'.")
 
 (RPAQQ BackgroundMenu
 NIL)
 
+(RPAQQ SKETCHFILES
 (SKETCH SKETCH-OPS SKETCH-ELEMENTS SKETCH-EDIT SKETCH-OBJ SKETCH-BMELT))
+(DEFINEQ
+
+(UPDATE-SKETCH

+  [LAMBDA (FILES LDFLG)
                                      (* ; "Edited 30-Nov-2025 10:09 by rmk")


+                                                             (* ; "Edited  9-Mar-2025 19:17 by rmk")


+                                                             (* ; "Edited  7-Mar-2025 23:40 by rmk")


+                                                             (* ; "Edited 26-Oct-2022 21:10 by rmk")


+                                                             (* ; "Edited 16-Feb-2025 11:25 by rmk")

+
+    (* ;; 
+
 "Loads compiled TEDITFILES that were compiled on sources different from the currently loaded files.")

+
+    (CL:UNLESS LDFLG
+        (SETQ LDFLG 'SYSLOAD))
+    (for
 F CF in
 (OR FILES SKETCHFILES) when
 (SETQ CF (FINDFILE-WITH-EXTENSIONS F NIL 
+                                                             *COMPILED-EXTENSIONS*))
+       unless
 (thereis
 LF TCF in
 LOADEDFILELST first
 (SETQ TCF (TRUEFILENAME CF))
+                 suchthat
 (STRING.EQUAL TCF (TRUEFILENAME LF))) do
 (LOAD CF LDFLG])
+
+(EDIT-SKETCH

+  [LAMBDA NIL
                                                (* ; "Edited 30-Nov-2025 10:10 by rmk")


+                                                             (* ; "Edited  7-Mar-2025 22:53 by rmk")


+                                                             (* ; "Edited  3-Jul-2023 13:44 by rmk")


+                                                             (* ; "Edited 17-Jun-2023 10:00 by rmk")


+                                                             (* ; "Edited 25-Apr-2023 17:39 by rmk")


+                                                             (* ; "Edited 26-Oct-2022 21:12 by rmk")


+                                                             (* ; "Edited 14-Sep-2022 08:37 by rmk")

+    (BKSYSBUF " ")
+    (RESETLST
+        (RESETSAVE LOADDBFLG 'YES)
+        (UPDATE-SKETCH
 SKETCHFILES)
+        (FOR
 F IN
 SKETCHFILES DO
 (LOADFROM F)
+                                 (LOADCOMP F)))
+    (%. ANALYZE ON IN SKETCHFILES])
+)
+
 (FILESLOAD SKETCH-OPS SKETCH-ELEMENTS SKETCH-EDIT SKETCH-OBJ SKETCH-BMELT)
 (DECLARE%: DONTEVAL@LOAD DOEVAL@COMPILE DONTCOPY 
 
@@ -8723,21 +8759,6 @@ Otherwise, type '^'.")
 
 
 
-(* ; "to correct for a bug in the file package that marks LOADCOMPed file as changed")

-
-
-(UNMARKASCHANGED 'SKETCH 'FILE)
-
-(UNMARKASCHANGED 'SKETCH-ELEMENTS 'FILE)
-
-(UNMARKASCHANGED 'SKETCH-OPS 'FILE)
-
-(UNMARKASCHANGED 'SKETCH-EDIT 'FILE)
-
-(UNMARKASCHANGED 'SKETCH-OBJ 'FILE)
-
-
-
 (* ; "add sketch as option to file browser edit command")

 
 (DEFINEQ
@@ -8768,149 +8789,150 @@ Otherwise, type '^'.")
 (ADDTOVAR LAMA
 SK.UNIONREGIONS SKETCH.CREATE)
 )
 (DECLARE%: DONTCOPY
-  (FILEMAP (NIL (22176 85539 (SKETCH 22186 . 24291) (SKETCH.FROM.A.FILE 24293 . 24608) (SKETCHW.CREATE 
-24610 . 29184) (SKETCH.RESET 29186 . 30708) (SKETCHW.FIG.CHANGED 30710 . 31050) (SK.WINDOW.TITLE 31052
- . 31439) (EDITSLIDE 31441 . 31847) (EDITSKETCH 31849 . 32173) (SK.PUT.ON.FILE 32175 . 33627) (
-SK.OUTPUT.FILE.NAME 33629 . 34003) (SKETCH.PUT 34005 . 36903) (SK.GET.FROM.FILE 36905 . 37798) (
-SK.INCLUDE.FILE 37800 . 40308) (SK.GET.IMAGEOBJ.FROM.FILE 40310 . 42513) (SKETCH.GET 42515 . 42822) (
-ADD.SKETCH.TO.VIEWER 42824 . 45410) (FILENAMELESSVERSION 45412 . 45688) (SK.ADD.ELEMENTS.TO.SKETCH 
-45690 . 46204) (SKETCH.SET.A.DEFAULT 46206 . 53364) (SK.POPUP.SELECTIONFN 53366 . 53908) (
-GETSKETCHWREGION 53910 . 54116) (SK.ADD.ELEMENT 54118 . 55697) (SK.ADD.PRIORITY.ELEMENT.TO.SKETCH 
-55699 . 57093) (SK.ELTS.BY.PRIORITY 57095 . 57391) (SK.ORDER.ELEMENTS 57393 . 57660) (
-SK.ADD.PRIORITY.LOCAL.ELEMENT.TO.SKETCH 57662 . 59156) (SK.ADD.ELEMENTS 59158 . 59682) (
-SK.CHECK.WHENADDEDFN 59684 . 60414) (SK.APPLY.MENU.COMMAND 60416 . 61214) (SK.DELETE.ELEMENT1 61216 . 
-62794) (SK.MARK.DIRTY 62796 . 63462) (SK.MARK.UNDIRTY 63464 . 63795) (SK.MENU.AND.RETURN.FIELD 63797
- . 64462) (SKETCH.SET.BRUSH.SHAPE 64464 . 65049) (SKETCH.SET.BRUSH.SIZE 65051 . 65557) (
-SKETCHW.CLOSEFN 65559 . 67350) (SK.CONFIRM.DESTRUCTION 67352 . 68351) (SKETCHW.OUTFN 68353 . 68617) (
-SKETCHW.REOPENFN 68619 . 69031) (MAKE.LOCAL.SKETCH 69033 . 69763) (MAP.SKETCHSPEC.INTO.VIEWER 69765 . 
-70975) (SKETCHW.REPAINTFN 70977 . 71805) (SKETCHW.REPAINTFN1 71807 . 72746) (SK.DRAWFIGURE.IF 72748 . 
-73270) (SKETCHW.SCROLLFN 73272 . 77465) (SKETCHW.RESHAPEFN 77467 . 79725) (SK.UPDATE.EVENT.SELECTION 
-79727 . 81782) (LIGHTGRAYWINDOW 81784 . 81947) (SK.ADD.SPACES 81949 . 82695) (SK.SKETCH.MENU 82697 . 
-83019) (SK.CHECK.IMAGEOBJ.WHENDELETEDFN 83021 . 83873) (SK.APPLY.IMAGEOBJ.WHENDELETEDFN 83875 . 84835)
- (SK.RETURN.TTY 84837 . 85205) (SK.TAKE.TTY 85207 . 85537)) (85593 108921 (SKETCH.COMMANDMENU 85603 . 
-85940) (SKETCH.COMMANDMENU.ITEMS 85942 . 106025) (CREATE.SKETCHW.COMMANDMENU 106027 . 106447) (
-SKETCHW.SELECTIONFN 106449 . 107552) (SKETCH.MONITORLOCK 107554 . 108025) (SK.EVAL.AS.PROCESS 108027
- . 108640) (SK.EVAL.WITH.LOCK 108642 . 108919)) (108922 116726 (SK.FIX.MENU 108932 . 110026) (
-SK.SET.UP.MENUS 110028 . 112329) (SK.INSURE.HAS.MENU 112331 . 112993) (SK.CREATE.STANDARD.MENU 112995
- . 113440) (SK.ADD.ITEM.TO.MENU 113442 . 114117) (SK.GET.VIEWER.POPUP.MENU 114119 . 116320) (
-SK.CLEAR.POPUP.MENU 116322 . 116724)) (116782 125604 (SKETCH.CREATE 116792 . 117578) (GETSKETCHPROP 
-117580 . 120637) (PUTSKETCHPROP 120639 . 124571) (CREATE.DEFAULT.SKETCH.CONTEXT 124573 . 125602)) (
-125770 148666 (SK.COPY.BUTTONEVENTFN 125780 . 137008) (SK.BUTTONEVENT.MARK 137010 . 137393) (
-SK.BUILD.IMAGEOBJ 137395 . 147310) (SK.BUTTONEVENT.OVERP 147312 . 147935) (SK.BUTTONEVENT.SAME.KEYS 
-147937 . 148664)) (148945 174760 (SK.SEL.AND.CHANGE 148955 . 149247) (SK.CHECK.WHENCHANGEDFN 149249 . 
-149955) (SK.CHECK.PRECHANGEFN 149957 . 150558) (SK.CHANGE.ELT 150560 . 150752) (SK.CHANGE.THING 150754
- . 152005) (SKETCH.CHANGE.ELEMENTS 152007 . 153190) (SK.APPLY.SINGLE.CHANGEFN 153192 . 153765) (
-SK.DO.CHANGESPECS 153767 . 155426) (SK.VIEWER.FROM.SKETCH.ARG 155428 . 155870) (SK.DO.CHANGESPEC1 
-155872 . 157747) (SK.CHANGEFN 157749 . 158329) (SK.READCHANGEFN 158331 . 158790) (SK.DEFAULT.CHANGEFN 
-158792 . 161264) (CHANGEABLEFIELDITEMS 161266 . 161913) (SK.APPLY.CHANGE.COMMAND 161915 . 162532) (
-SK.DO.AND.RECORD.CHANGES 162534 . 163931) (SK.APPLY.CHANGE.COMMAND1 163933 . 165421) (
-SK.ELEMENTS.CHANGEFN 165423 . 167747) (READ.POINT.TO.ADD 167749 . 168693) (GLOBAL.KNOT.FROM.LOCAL 
-168695 . 169155) (SK.ADD.KNOT.TO.ELEMENT 169157 . 170101) (SK.GROUP.CHANGEFN 170103 . 171315) (
-SK.GROUP.CHANGEFN1 171317 . 174758)) (174927 188660 (ADD.ELEMENT.TO.SKETCH 174937 . 176643) (
-ADD.SKETCH.VIEWER 176645 . 177313) (REMOVE.SKETCH.VIEWER 177315 . 177928) (ALL.SKETCH.VIEWERS 177930
- . 178170) (SKETCH.ALL.VIEWERS 178172 . 178432) (VIEWER.BUCKET 178434 . 178585) (ELT.INSIDE.REGION? 
-178587 . 178914) (ELT.INSIDE.SKWP 178916 . 179207) (SCALE.FROM.SKW 179209 . 179459) (
-SK.ADDELT.TO.WINDOW 179461 . 180321) (SK.CALC.REGION.VIEWED 180323 . 180701) (SK.DRAWFIGURE 180703 . 
-181992) (SK.DRAWFIGURE1 181994 . 182378) (SK.LOCAL.FROM.GLOBAL 182380 . 183615) (SKETCH.REGION.VIEWED 
-183617 . 186304) (SKETCH.VIEW.FROM.NAME 186306 . 186736) (SK.UPDATE.REGION.VIEWED 186738 . 187130) (
-SKETCH.ADD.AND.DISPLAY 187132 . 187540) (SKETCH.ADD.AND.DISPLAY1 187542 . 187980) (SK.ADD.ITEM 187982
- . 188314) (SKETCHW.ADD.INSTANCE 188316 . 188658)) (188701 201889 (SK.SEL.AND.DELETE 188711 . 189099) 
-(SK.ERASE.AND.DELETE.ITEM 189101 . 189520) (REMOVE.ELEMENT.FROM.SKETCH 189522 . 190633) (
-SK.DELETE.ELEMENT 190635 . 191193) (SK.DELETE.ELEMENT2 191195 . 191856) (SK.DELETE.KNOT 191858 . 
-192149) (SK.SEL.AND.DELETE.KNOT 192151 . 193276) (SK.DELETE.ELEMENT.KNOT 193278 . 196485) (
-SK.CHECK.WHENDELETEDFN 196487 . 197267) (SK.CHECK.PREEDITFN 197269 . 197753) (
-SK.CHECK.END.INITIAL.EDIT 197755 . 198289) (SK.CHECK.WHENPOINTDELETEDFN 198291 . 199087) (SK.ERASE.ELT
- 199089 . 199425) (SK.DELETE.ELT 199427 . 199802) (SK.DELETE.ITEM 199804 . 200212) (DELFROMTCONC 
-200214 . 201887)) (201928 215762 (SK.COPY.ELT 201938 . 202308) (SK.SEL.AND.COPY 202310 . 202693) (
-SK.COPY.ELEMENTS 202695 . 208323) (SK.ADD.COPY.OF.ELEMENTS 208325 . 210092) (
-SK.GLOBAL.FROM.LOCAL.ELEMENTS 210094 . 210334) (SK.COPY.ITEM 210336 . 211133) (SK.INSERT.SKETCH 211135
- . 215760)) (215802 245823 (SK.MOVE.ELT 215812 . 216087) (SK.MOVE.ELT.OR.PT 216089 . 216402) (
-SK.APPLY.DEFAULT.MOVE 216404 . 216838) (SK.SEL.AND.MOVE 216840 . 217387) (SK.MOVE.ELEMENTS 217389 . 
-228261) (SKETCH.MOVE.ELEMENTS 228263 . 230194) (SKETCH.COPY.ELEMENTS 230196 . 232243) (
-\SKETCH.COPY.ELEMENT 232245 . 232970) (SK.TRANSLATE.ELEMENT 232972 . 233455) (SK.COPY.GLOBAL.ELEMENT 
-233457 . 233668) (SK.MAKE.ELEMENT.MOVE.ARG 233670 . 234290) (SK.MAKE.ELEMENTS.MOVE.ARG 234292 . 234814
-) (SK.MAKE.POINTS.AND.ELEMENTS.MOVE.ARG 234816 . 235885) (SK.SHOW.FIG.FROM.INFO 235887 . 236255) (
-SK.MOVE.THING 236257 . 237163) (UPDATE.ELEMENT.IN.SKETCH 237165 . 239220) (SK.UPDATE.ELEMENT 239222 . 
-240781) (SK.UPDATE.ELEMENTS 240783 . 241502) (SK.UPDATE.ELEMENT1 241504 . 245404) (
-SK.MOVE.ELEMENT.POINT 245406 . 245821)) (245886 268175 (SK.MOVE.POINTS 245896 . 246183) (
-SK.SEL.AND.MOVE.POINTS 246185 . 246490) (SK.DO.MOVE.ELEMENT.POINTS 246492 . 255149) (
-SK.MOVE.ITEM.POINTS 255151 . 256822) (SK.TRANSLATEPTSFN 256824 . 257208) (SK.TRANSLATE.POINTS 257210
- . 258111) (SK.SELECT.MULTIPLE.POINTS 258113 . 263753) (SK.CONTROL.POINTS.IN.REGION 263755 . 265176) (
-SK.ADD.PT.SELECTION 265178 . 265642) (SK.REMOVE.PT.SELECTION 265644 . 266261) (SK.ADD.POINT 266263 . 
-266886) (SK.ELTS.CONTAINING.PTS 266888 . 267513) (SK.HOTSPOTS.NOT.ON.LIST 267515 . 268173)) (268333 
-271129 (SK.SET.MOVE.MODE 268343 . 269014) (SK.SET.MOVE.MODE.POINTS 269016 . 269355) (
-SK.SET.MOVE.MODE.ELEMENTS 269357 . 269701) (SK.SET.MOVE.MODE.COMBINED 269703 . 270053) (READMOVEMODE 
-270055 . 271127)) (271130 289885 (SK.ALIGN.POINTS 271140 . 271430) (SK.SEL.AND.ALIGN.POINTS 271432 . 
-271741) (SK.ALIGN.POINTS.LEFT 271743 . 272046) (SK.ALIGN.POINTS.RIGHT 272048 . 272353) (
-SK.ALIGN.POINTS.TOP 272355 . 272656) (SK.ALIGN.POINTS.BOTTOM 272658 . 272965) (
-SK.EVEN.SPACE.POINTS.IN.X 272967 . 273287) (SK.EVEN.SPACE.POINTS.IN.Y 273289 . 273609) (
-SK.DO.ALIGN.POINTS 273611 . 284233) (SK.NTH.CONTROL.POINT 284235 . 284696) (
-SK.GET.SELECTED.ELEMENT.STRUCTURE 284698 . 285364) (SK.CORRESPONDING.CONTROL.PT 285366 . 285920) (
-SK.CONTROL.POINT.NUMBER 285922 . 286292) (SK.DO.ALIGN.SETVALUE 286294 . 289883)) (289949 303381 (
-SKETCH.CREATE.GROUP 289959 . 290448) (SK.CREATE.GROUP1 290450 . 290997) (SK.UPDATE.GROUP.AFTER.CHANGE 
-290999 . 291788) (SK.GROUP.ELTS 291790 . 292071) (SK.SEL.AND.GROUP 292073 . 292459) (SK.GROUP.ELEMENTS
- 292461 . 294110) (SK.UNGROUP.ELT 294112 . 294396) (SK.SEL.AND.UNGROUP 294398 . 296067) (
-SK.UNGROUP.ELEMENT 296069 . 297005) (SK.GLOBAL.REGION.OF.LOCAL.ELEMENTS 297007 . 297929) (
-SK.LOCAL.REGION.OF.LOCAL.ELEMENTS 297931 . 298942) (SK.GLOBAL.REGION.OF.GLOBAL.ELEMENTS 298944 . 
-300284) (SK.UNIONREGIONS 300286 . 302652) (SKETCH.REGION.OF.SKETCH 302654 . 303070) (SK.FLASHREGION 
-303072 . 303379)) (303382 316853 (INIT.GROUP.ELEMENT 303392 . 304264) (GROUP.DRAWFN 304266 . 304716) (
-GROUP.EXPANDFN 304718 . 306281) (GROUP.INSIDEFN 306283 . 306692) (GROUP.REGIONFN 306694 . 307089) (
-GROUP.GLOBALREGIONFN 307091 . 307409) (GROUP.TRANSLATEFN 307411 . 309443) (GROUP.TRANSFORMFN 309445 . 
-312925) (GROUP.READCHANGEFN 312927 . 316851)) (316854 317862 (REGION.CENTER 316864 . 317465) (
-REMOVE.LAST 317467 . 317860)) (317915 323022 (SK.MOVE.GROUP.CONTROL.PT 317925 . 318216) (
-SK.SEL.AND.MOVE.CONTROL.PT 318218 . 319622) (SK.MOVE.GROUP.ELEMENT.CONTROL.POINT 319624 . 321697) (
-SK.READ.NEW.GROUP.CONTROL.PT 321699 . 323020)) (323281 327905 (SK.DO.GROUP 323291 . 324743) (
-SK.CHECK.WHENGROUPEDFN 324745 . 325455) (SK.DO.UNGROUP 325457 . 326662) (SK.CHECK.WHENUNGROUPEDFN 
-326664 . 327251) (SK.GROUP.UNDO 327253 . 327576) (SK.UNGROUP.UNDO 327578 . 327903)) (328146 333068 (
-SK.FREEZE.ELTS 328156 . 328440) (SK.SEL.AND.FREEZE 328442 . 328832) (SK.FREEZE.ELEMENTS 328834 . 
-329385) (SK.UNFREEZE.ELT 329387 . 329676) (SK.SEL.AND.UNFREEZE 329678 . 331214) (SK.UNFREEZE.ELEMENTS 
-331216 . 331775) (SK.FREEZE.UNDO 331777 . 332022) (SK.UNFREEZE.UNDO 332024 . 332271) (SK.DO.FREEZE 
-332273 . 332666) (SK.DO.UNFREEZE 332668 . 333066)) (333298 343108 (SKETCH.ELEMENTS.OF.SKETCH 333308 . 
-334143) (SKETCH.LIST.OF.ELEMENTS 334145 . 334863) (SKETCH.ADD.ELEMENT 334865 . 335940) (
-SKETCH.DELETE.ELEMENT 335942 . 337674) (DELFROMGROUPELT 337676 . 338476) (SKETCH.ELEMENT.TYPE 338478
- . 338827) (SKETCH.ELEMENT.CHANGED 338829 . 340397) (SK.ELEMENT.CHANGED1 340399 . 341050) (
-SK.UPDATE.GLOBAL.IMAGE.OBJECT.ELEMENT 341052 . 343106)) (343162 347774 (INSURE.SKETCH 343172 . 345787)
- (LOCALSPECS.FROM.VIEWER 345789 . 346149) (SK.LOCAL.ELT.FROM.GLOBALPART 346151 . 346619) (
-SKETCH.FROM.VIEWER 346621 . 346855) (INSPECT.SKETCH 346857 . 347182) (ELT.INSIDE.SKETCHWP 347184 . 
-347457) (SK.INSIDE.REGION 347459 . 347772)) (347775 352105 (MAPSKETCHSPECS 347785 . 348406) (
-MAPCOLLECTSKETCHSPECS 348408 . 349157) (MAPSKETCHSPECSUNTIL 349159 . 349967) (MAPGLOBALSKETCHSPECS 
-349969 . 350670) (MAPGLOBALSKETCHELEMENTS 350672 . 352103)) (352167 378059 (SK.ADD.SELECTION 352177 . 
-352917) (SK.COPY.INSERTFN 352919 . 356550) (SCREENELEMENTP 356552 . 357025) (SK.ITEM.REGION 357027 . 
-357514) (SK.ELEMENT.GLOBAL.REGION 357516 . 358044) (SK.LOCAL.ITEMS.IN.REGION 358046 . 360025) (
-SK.REGIONFN 360027 . 360349) (SK.GLOBAL.REGIONFN 360351 . 360709) (SK.REMOVE.SELECTION 360711 . 361439
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+EDIT-SKETCH 486080 . 487109)) (487712 491657 (SK.CHECK.SKETCH.VERSION 487722 . 488962) (
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+491189 . 491363) (SK.SET.RECORD.LENGTHS 491365 . 491655)) (492120 493007 (
+SK.ADD.EDIT.COMMAND.TO.FILE.BROWSER 492130 . 493005)))))
 STOP
diff --git a/library/sketch/SKETCH-EDIT b/library/sketch/SKETCH-EDIT
index fe712eea..998a52ec 100644
--- a/library/sketch/SKETCH-EDIT
+++ b/library/sketch/SKETCH-EDIT
@@ -1,18 +1,20 @@
 (DEFINE-FILE-INFO PACKAGE "INTERLISP" READTABLE "INTERLISP" BASE 10)
 
-
(FILECREATED " 5-Dec-2023 00:12:04" {WMEDLEY}<library>sketch>SKETCH-EDIT.;1
 108598 
+
(FILECREATED " 2-Dec-2025 10:03:57" {WMEDLEY}<library>SKETCH>SKETCH-EDIT.;21
 113506 
 
       :EDIT-BY rmk
 
-      :CHANGES-TO (RECORDS TEXTELTSELECTION)
+      :CHANGES-TO (FNS \SKED.ARROWKEYS \SKED.INSERT.UNDO \SKED.INSERT.ACTION 
+                       \SKED.INSERT.CHARS.TO.STR \SKED.INSERT CHAR.BEGIN)
+                  (VARS SKETCH-EDITCOMS)
 
-      :PREVIOUS-DATE "21-Aug-2021 20:50:04" {WMEDLEY}<library>sketch>SKETCHEDIT.;1)
+      :PREVIOUS-DATE "30-Nov-2025 08:45:15" {WMEDLEY}<library>SKETCH>SKETCH-EDIT.;17)
 
 
 (PRETTYCOMPRINT SKETCH-EDITCOMS)
 
 (RPAQQ SKETCH-EDITCOMS

-       ((COMS (* selection functions)
+       ((COMS                                                (* ; "selection functions")

               (FNS BUTLAST CHAR.BEGIN CLOSEST.CHAR CLOSEST.LINE FLASHW HILITE.LINE HILITE.TEXT 
                    IN.TEXT.EXTEND INIMAGEOBJ INTEXT NEW.TEXT.EXTEND NEW.TEXT.SELECTIONP NTHCHARWIDTH
                    NTHLOCALREGION ONCHAR SHOW.EXTENDED.SELECTION.FEEDBACK SHOW.FEEDBACK 
@@ -20,29 +22,30 @@
                    SK.ENTER.EDIT.CHANGE SKED.REMOVE.OTHER.SELECTIONS SKED.EXTEND.SELECTION 
                    SKED.MOVE.SELECTION CREATE.TEXT.SELECTION SKED.SELECTION.FEEDBACK 
                    SKED.SET.EXTENDSELECTION SKED.SET.SELECTION LINE.BEGIN SELECTION.GREATERP 
-                   SK.WORD.BREAK.CLASS SK.GETSYNTAX)
+                   SK.GETSYNTAX)
               (DECLARE%: DONTCOPY (RECORDS TEXTELTSELECTION))
               (UGLYVARS IN.TEXT.FEEDBACK.CURSOR NEW.TEXT.FEEDBACK.CURSOR NEW.TEXT.FEEDBACK.SHADE 
                      SELECTION.HIGHLIGHT.SHADE)
               (GLOBALVARS IN.TEXT.FEEDBACK.CURSOR NEW.TEXT.FEEDBACK.CURSOR NEW.TEXT.FEEDBACK.SHADE 
                      SELECTION.HIGHLIGHT.SHADE))
-        (COMS (* editting functions)
-              (FNS WB.EDITOR SK.TTYENTRYFN SK.TTYEXITFN SKED.INSERT \SKED.INSERT FIRST.N.ELEMENTS 
-                   SKED.CREATE.NEW.TEXTBOX SKED.CHARACTERPOSITION SKED.LINE.AND.CHAR# 
-                   \SKED.DELETE.WORD.FROM.STRING \SKED.INSERT.CHARS.TO.STR JOINCHARS 
-                   STRINGFROMCHARACTERS GETALLCHARS CLEANUP.EDIT SKED.NEW.TEXTELT))
-        (COMS (* line adding functions)
+        (COMS                                                (* ; "editing functions")

+              (FNS WB.EDITOR SK.TTYENTRYFN SK.TTYEXITFN SKED.INSERT \SKED.INSERT \SKED.ARROWKEYS 
+                   \SKED.INSERT.ACTION \SKED.INSERT.UNDO FIRST.N.ELEMENTS SKED.CREATE.NEW.TEXTBOX 
+                   SKED.CHARACTERPOSITION SKED.LINE.AND.CHAR# \SKED.DELETE.WORD.FROM.STRING 
+                   \SKED.INSERT.CHARS.TO.STR JOINCHARS STRINGFROMCHARACTERS GETALLCHARS CLEANUP.EDIT
+                   SKED.NEW.TEXTELT))
+        (COMS                                                (* ; "line adding functions")

               (FNS MAP.SCREEN.POSITION.ONTO.GRID NEAREST.ON.GRID SK.MIDDLE.TITLEFN WB.BUTTON.HANDLER
                    WB.ADD.NEW.POINT WB.DRAWLINE WB.RUBBERBAND.POSITION SK.RUBBERBAND.FEEDBACKFN 
                    RESET.LINE.BEING.INPUT)
-              [P (* Was MODERNIZE loaded before?)
+              [P                                             (* ; "Was MODERNIZE loaded before?")

                  (CL:WHEN (GETD 'MODERNWINDOW.SETUP)
                      (MODERNWINDOW.SETUP 'WB.BUTTON.HANDLER))]
               (FNS NEAREST.EXISTING.POSITION WB.NEARPT LASTMOUSEPOSITION))))
 
 
 
-(* selection functions)

+(* ; "selection functions")

 
 (DEFINEQ
 
@@ -59,10 +62,13 @@
                 (BUTLAST
 (CDR LST])
 
 (CHAR.BEGIN

-  [LAMBDA (CHAR# LINE# TEXTELT STRM)
                         (* rrb "14-Jan-85 15:40")

-          
-          (* determines the x position of the first bit of character CHAR# in LINE# of 
-
          TEXTELT.)

+  [LAMBDA (CHAR# LINE# TEXTELT STRM)
                         (* ; "Edited  1-Dec-2025 00:22 by rmk")

+                                                             (* rrb "14-Jan-85 15:40")

+
+    (* ;; "determines the x position of the first bit of character CHAR# in LINE# of TEXTELT.")

+
+         (* determines the x position of the first bit of character CHAR# in LINE# of 
+
         TEXTELT.)

 
     (PROG ((LTEXT (fetch
 (SCREENELT LOCALPART) of
 TEXTELT))
            TEXT XPOS LFONT LREGION)
@@ -72,26 +78,21 @@
                                                                         of
 LTEXT)
                                                                      LINE#]
           (COND
-             ((EQ CHAR# 0)                                   (* before the first character.)

+             ((EQ CHAR# 0)                                   (* ; "before the first character.")

               (RETURN XPOS)))
           (SETQ LFONT (fetch
 (LOCALTEXT LOCALFONT) of
 LTEXT))
           (RETURN (IPLUS XPOS (COND
                                  ((IMAGESTREAMTYPEP STRM 'HARDCOPY)
-          
-          (* hardcopy streams must pass the stream so correction in widths is accounted 
-
          for.)

-
+                                                             (* ; 
+
                    "hardcopy streams must pass the stream so correction in widths is accounted for.")

                                   (DSPFONT LFONT STRM)
                                   (STRINGWIDTH (SUBSTRING TEXT 1 CHAR#)
                                          STRM))
                                  ((FONTP LFONT)
-                                  (for
 I from
 1 to
 CHAR# sum
 (CHARWIDTH (CHCON1 (NTHCHAR TEXT I))
-                                                                    LFONT)))
-                                 (T 
-          
-          (* if it is printed in shade, put cursor a percentage of the way across the 
-
          area.)

-
+                                  (STRINGWIDTH (SUBSTRING TEXT 1 CHAR#)
+                                         LFONT))
+                                 (T                          (* ; 
+
                     "if it is printed in shade, put cursor a percentage of the way across the area.")

                                     (IQUOTIENT (ITIMES CHAR# (fetch
 (REGION WIDTH) of
 LREGION))
                                            (NCHARS TEXT])
 
@@ -520,11 +521,10 @@
                         (SKED.MOVE.SELECTION
 SKW (NOT (WINDOWPROP SKW 'USEGRID])
 
 (SKED.MOVE.SELECTION

-  [LAMBDA (SKW USEGRID)
                                      (* rrb "11-Jul-86 15:51")

-          
-          (* the user has left buttoned in a sketch window.
-
          Put the caret there.)

-
+  [LAMBDA (SKW USEGRID)
                                      (* ; "Edited  5-Nov-2025 23:56 by rmk")

+                                                             (* rrb "11-Jul-86 15:51")

+                                                             (* ; 
+
                               "the user has left buttoned in a sketch window.  Put the caret there.")

     (SKED.CLEAR.SELECTION
 SKW)
     (PROG (FEEDBACKX FEEDBACKY OLDGRIDX OLDGRIDY OLDX OLDY OLDCUR FEEDBACKCUR INTEXT INIMAGEOBJ 
                  STARTLINE STARTCHAR X Y (DSP (WINDOWPROP SKW 'DSP))
@@ -532,44 +532,36 @@
                  (GRID (SK.GRIDFACTOR SKW)))
           (until
 (MOUSESTATE UP)
              do
 
-          
-          (* track with the appropriate caret depending upon whether the cursor is inside 
-
          of existing text or not.)

+                (* ;; "track with the appropriate caret depending upon whether the cursor is inside of existing text or not.")

 
                 (SETQ X (LASTMOUSEX DSP))
                 (SETQ Y (LASTMOUSEY DSP))
                 (COND
                    ((OR (NEQ OLDX X)
-                        (NEQ OLDY Y))
-          
-          (* only look for things when the cursor position has changed.)

-
+                        (NEQ OLDY Y))                        (* ; 
+
                                         "only look for things when the cursor position has changed.")

                     (SETQ OLDX X)
                     (SETQ OLDY Y)
                     [COND
                        ([AND (SETQ INTEXT
                               (for
 ELT in
 (LOCALSPECS.FROM.VIEWER SKW)
+                                 unless
 (EQ 'SHADE (fetch
 (LOCALTEXT LOCALFONT)
+                                                      of
 (fetch
 (SCREENELT LOCALPART) of
 ELT)))
                                  when
 (SELECTQ (fetch
 (SCREENELT GTYPE) of
 ELT)
-                                          (TEXT (AND (NEQ (fetch
 (LOCALTEXT LOCALFONT)
-                                                             of
 (fetch
 (SCREENELT LOCALPART)
-                                                                   of
 ELT))
-                                                          'SHADE)
-                                                     (SETQ STARTLINE (INTEXT
 ELT X Y))))
-                                          (TEXTBOX (AND (NEQ (fetch
 (LOCALTEXTBOX LOCALFONT)
-                                                                of
 (fetch
 (SCREENELT LOCALPART)
-                                                                      of
 ELT))
-                                                             'SHADE)
-                                                        (INSIDE? (fetch
 (LOCALTEXTBOX 
-                                                                               LOCALTEXTBOXREGION)
-                                                                    of
 (fetch
 (SCREENELT LOCALPART)
-                                                                          of
 ELT))
-                                                               X Y)
-                                                        (SETQ STARTLINE (CLOSEST.LINE
 ELT Y))))
+                                          (TEXT (SETQ STARTLINE (INTEXT
 ELT X Y)))
+                                          (TEXTBOX (CL:WHEN (INSIDE? (fetch
 (LOCALTEXTBOX 
+                                                                                   LOCALTEXTBOXREGION
+                                                                                   )
+                                                                        of
 (fetch
 (SCREENELT 
+                                                                                         LOCALPART)
+                                                                              of
 ELT))
+                                                                   X Y)
+                                                       (SETQ STARTLINE (CLOSEST.LINE
 ELT Y))))
                                           NIL) do
 (RETURN ELT)))
                              (NOT (SK.ELEMENT.PROTECTED? (fetch
 (SCREENELT GLOBALPART) of
 INTEXT)
-                                         'CHANGE]            (* inside of a text element.)

+                                         'CHANGE]            (* ; "inside of a text element.")

                         (SETQ FEEDBACKCUR IN.TEXT.FEEDBACK.CURSOR)
-                        (SETQ FEEDBACKX (CHAR.BEGIN
 (SETQ STARTCHAR (CLOSEST.CHAR
 X STARTLINE INTEXT 
+                        (SETQ FEEDBACKX (CHAR.BEGIN
 (SETQ STARTCHAR (CLOSEST.CHAR
 X STARTLINE INTEXT
                                                                            DSP))
                                                STARTLINE INTEXT DSP))
                         (SETQ FEEDBACKY (LINE.BEGIN
 STARTLINE INTEXT)))
@@ -577,7 +569,7 @@
                           (COND
                              (USEGRID (SETQ FEEDBACKX (MAP.WINDOW.ONTO.GRID X SCALE GRID))
                                     (SETQ FEEDBACKY (MAP.WINDOW.ONTO.GRID Y SCALE GRID)))
-                             (T                              (* no grid)

+                             (T                              (* ; "no grid")

                                 (SETQ FEEDBACKX X)
                                 (SETQ FEEDBACKY Y]
                     (COND
@@ -588,13 +580,13 @@
                         (SHOW.FEEDBACK
 (SETQ OLDCUR FEEDBACKCUR)
                                (SETQ OLDGRIDX FEEDBACKX)
                                (SETQ OLDGRIDY FEEDBACKY)
-                               SKW)))                        (* give the coordinate display window 
-
                                                             a shot.)

+                               SKW)))                        (* ; 
+
                                                         "give the coordinate display window a shot.")

                     (SKETCHW.UPDATE.LOCATORS SKW)))
              finally
 (AND OLDGRIDX (SHOW.FEEDBACK
 OLDCUR OLDGRIDX OLDGRIDY SKW))
                    (COND
-                      ((EQ OLDCUR IN.TEXT.FEEDBACK.CURSOR)   (* selection is existing text)

-                       (SKED.SET.SELECTION
 (CREATE.TEXT.SELECTION
 INTEXT STARTLINE STARTCHAR OLDGRIDX 
+                      ((EQ OLDCUR IN.TEXT.FEEDBACK.CURSOR)   (* ; "selection is existing text")

+                       (SKED.SET.SELECTION
 (CREATE.TEXT.SELECTION
 INTEXT STARTLINE STARTCHAR OLDGRIDX
                                                   OLDGRIDY DSP)
                               SKW))
                       (OLDGRIDX (SKED.SET.SELECTION
 (create
 POSITION
@@ -688,30 +680,18 @@
                       (IGREATERP (fetch
 (TEXTELTSELECTION SKCHAR#) of
 SEL2)
                              (fetch
 (TEXTELTSELECTION SKCHAR#) of
 SEL1])
 
-(SK.WORD.BREAK.CLASS

-  [LAMBDA (CHCODE)
                                           (* rrb "11-Jul-86 17:17")

-                                                             (* version of TEDIT.WORDGET that makes 
-
                                                             sure TEDIT is loaded.)

-    (COND
-       ((DEFINEDP (FUNCTION TEDIT.WORDGET))
-        (TEDIT.WORDGET CHCODE))
-       ((EQ CHCODE 32)                                       (* space, return the code tedit uses 
-
                                                             for word separators)

-        22)
-       (T                                                    (* this probably isn't right but 
-
                                                             should do something reasonable.)

-          (GETSYNTAX CHCODE (GETREADTABLE])
-
 (SK.GETSYNTAX

-  [LAMBDA (CHARCODE)
                                         (* rrb "11-Jul-86 17:18")

-          
-          (* version of getsyntax that uses the TEDIT table if it is available, otherwise 
-
          the terminal.)

+  [LAMBDA (CHARCODE)
                                         (* ; "Edited 30-Nov-2025 08:39 by rmk")


+                                                             (* ; "Edited 10-Nov-2025 15:33 by rmk")

+                                                             (* rrb "11-Jul-86 17:18")

 
-    (COND
-       ((DEFINEDP (FUNCTION TEDIT.GETSYNTAX))
-        (TEDIT.GETSYNTAX CHARCODE TEDIT.READTABLE))
-       (T (GETSYNTAX CHARCODE (GETTERMTABLE])
+    (* ;; "Original code used TEDIT.GETSYNTAX if it was defined, otherwise called the system GETSYNTAX.  That made SKETCH dependent on the system tags (CHARDELETE etc.).  Bbut now we know that loading SKETCH insures that TEDIT is loaded, so Sketch is modified to use the Tedit action names")

+
+    (* ;; "4 is (\TEDIT.TTC FN)")

+
+    (CL:WHEN (EQ 4 (\SYNCODE (fetch
 READSA of
 TEDIT.READTABLE)
+                          CHARCODE))
+           (TEDIT.GET.CHARACTION CHARCODE])
 )
 (DECLARE%: DONTCOPY 
 (DECLARE%: EVAL@COMPILE
@@ -764,52 +744,57 @@
 
 
 
-(* editting functions)

+(* ; "editing functions")

 
 (DEFINEQ
 
 (WB.EDITOR

-  [LAMBDA (SKW)
                                              (* rrb "17-Jul-85 15:53")

-          
-          (* the process that looks for characters and adds them to the white board as 
-
          text elements.)

-          
-          (* save the value of del as an interrupt character so it is restored when this 
-
          process exits. This is also done by TTYENTRYFN and TTYEXITFN on the process.)

+  [LAMBDA (SKW)
                                              (* ; "Edited 29-Nov-2025 17:14 by rmk")

+                                                             (* rrb "17-Jul-85 15:53")

+                                                             (* ; 
+
           "the process that looks for characters and adds them to the white board as text elements.")

 
-    (RESETFORM (INTERRUPTCHAR 127 T)
-           (PROG (CHARS EDITINPROGRESS)
-                 (TTYDISPLAYSTREAM SKW)
-             LP  (COND
-                    ((\SYSBUFP)
-          
-          (* a character has been typed, read all of the characters, delete the current 
-
          selection if extended and insert the new characters.)

+    (* ;; "RMK:  DEL/RUBOUT is no longer an interrupt character")

 
-                     (RESET.LINE.BEING.INPUT
 SKW)
-                     (SKED.INSERT
 (GETALLCHARS
 T)
-                            SKW)
-                     (SETQ EDITINPROGRESS T))
-                    ((AND EDITINPROGRESS (NOT (INSIDEP (WINDOWPROP SKW 'REGION)
-                                                     LASTMOUSEX LASTMOUSEY)))
-                     (CLEANUP.EDIT
 SKW)
-                     (SETQ EDITINPROGRESS NIL)))             (* let the mouse process run.)

-                 (BLOCK)
-                 (GO LP])
+    (* ;; "save the value of del as an interrupt character so it is restored when this process exits.  This is also done by TTYENTRYFN and TTYEXITFN on the process.")

+
+    (PROG (CHARS EDITINPROGRESS)
+          (TTYDISPLAYSTREAM SKW)
+      LP  (COND
+             ((\SYSBUFP)
+
+              (* ;; "a character has been typed, read all of the characters, delete the current selection if extended and insert the new characters.")

+
+              (RESET.LINE.BEING.INPUT
 SKW)
+              (SKED.INSERT
 (GETALLCHARS
 T)
+                     SKW)
+              (SETQ EDITINPROGRESS T))
+             ((AND EDITINPROGRESS (NOT (INSIDEP (WINDOWPROP SKW 'REGION)
+                                              LASTMOUSEX LASTMOUSEY)))
+              (CLEANUP.EDIT
 SKW)
+              (SETQ EDITINPROGRESS NIL)))                    (* ; "let the mouse process run.")

+          (BLOCK)
+          (GO LP])
 
 (SK.TTYENTRYFN

-  [LAMBDA (SKPROC)
                                           (* rrb "20-Jun-85 14:13")

-          
-          (* the sketch process just got the tty. Turns off DEL as an interrupt)

+  [LAMBDA (SKPROC)
                                           (* ; "Edited 29-Nov-2025 17:16 by rmk")

+                                                             (* rrb "20-Jun-85 14:13")

+                                                             (* ; 
+
                                "the sketch process just got the tty.  Turns off DEL as an interrupt")

 
-    (PROCESSPROP SKPROC 'OLDINTERRUPTVALUE (INTERRUPTCHAR 127 NIL])
+    (* ;; "RMK 2025:  DEL/RUBOUT is no longer an interrupt")

+
+    (AND NIL (PROCESSPROP SKPROC 'OLDINTERRUPTVALUE (INTERRUPTCHAR 127 NIL])
 
 (SK.TTYEXITFN

-  [LAMBDA (SKPROC)
                                           (* rrb "20-Jun-85 13:55")

-          
-          (* the sketch process just got the tty. Turns off DEL as an interrupt)

+  [LAMBDA (SKPROC)
                                           (* ; "Edited 29-Nov-2025 17:17 by rmk")

+                                                             (* rrb "20-Jun-85 13:55")

+                                                             (* ; 
+
                                "the sketch process just got the tty.  Turns off DEL as an interrupt")

 
-    (INTERRUPTCHAR (PROCESSPROP SKPROC 'OLDINTERRUPTVALUE])
+    (* ;; "RMK:  DEL/RUBOUT is no longer an interrupt")

+
+    (AND NIL (INTERRUPTCHAR (PROCESSPROP SKPROC 'OLDINTERRUPTVALUE])
 
 (SKED.INSERT

   [LAMBDA (CHARCODES SKW ATSCALE)
                            (* rrb "10-Feb-86 10:15")

@@ -822,81 +807,64 @@
            (\SKED.INSERT
 CHARCODES SKW ATSCALE])
 
 (\SKED.INSERT

-  [LAMBDA (CHARCODES SKW ATSCALE)
                            (* ; "Edited 20-Feb-87 17:28 by rrb")

+  [LAMBDA (CHARCODES SKW ATSCALE)
                            (* ; "Edited  1-Dec-2025 13:23 by rmk")


+                                                             (* ; "Edited 12-Nov-2025 14:49 by rmk")


+                                                             (* ; "Edited 10-Nov-2025 15:32 by rmk")


+                                                             (* ; "Edited 20-Feb-87 17:28 by rrb")

     (COND
        ((GREATERP (LENGTH CHARCODES)
                200)
-          
-          (* the maximum string length limits the number of characters that can be 
-
          inserted at once. This can happen from a shift select.)

+
+        (* ;; "the maximum string length limits the number of characters that can be inserted at once.  This can happen from a shift select.")

 
         (SKED.INSERT
 (FIRST.N.ELEMENTS
 CHARCODES 200)
                SKW ATSCALE)
         (SKED.INSERT
 (NTH CHARCODES 201)
                SKW ATSCALE))
+       ((\SKED.INSERT.ACTION
 CHARCODES SKW))
        (T (PROG ((SELECTION (WINDOWPROP SKW 'SELECTION))
                  (EXTENSION (WINDOWPROP SKW 'EXTENDSELECTION))
                  TEXTELT ELTTYPE GTEXTELT FIRSTLINE# FIRSTCHAR# LASTLINE# LASTCHAR# STRLST NEWSTRS 
                  NEWELT STRPIECE NEWLINE# NEWCHAR# SKCONTEXT PTRCHAR# CONTROLCHARTAIL)
-                (COND
-                   ((EQ (SK.GETSYNTAX
 (CAR CHARCODES))
-                        'UNDO)
-          
-          (* user typed an undo Avoid the overhead of inserting no characters and allow 
-
          undo to be typed without a selection.)

-
-                    (SETQ CONTROLCHARTAIL 'UNDO)
-                    (GO UNDO)))
-                (COND
-                   ((NULL SELECTION)                         (* add a new text element with these 
-
                                                             characters.)

+                (CL:UNLESS SELECTION                         (* ; 
+
                                                      "add a new text element with these characters.")

                     (STATUSPRINT SKW "
 " "Indicate the position the typing should go with the left button.")
-                    (RETURN)))
+                    (RETURN))
                 (SKED.CLEAR.SELECTION
 SKW NIL T)
                 (SKED.REMOVE.OTHER.SELECTIONS
 SKW)
-                [COND
-                   ((AND (OR (EQ (CAR CHARCODES)
-                                 (CHARCODE EOL))
-                             (EQ (CAR CHARCODES)
-                                 (CHARCODE LINEFEED)))
-                         (KEYDOWNP 'CTRL))
-          
-          (* user hit control CR. create a new text or textbox.)

-
-                    (SKED.CREATE.NEW.TEXTBOX
 [COND
-                                                ((NEW.TEXT.SELECTIONP
 SELECTION)
-                                                 NIL)
-                                                (T (fetch
 (SCREENELT INDIVIDUALGLOBALPART)
-                                                      of
 (fetch
 (TEXTELTSELECTION SKTEXTELT)
-                                                            of
 SELECTION]
+                (CL:WHEN (AND (MEMB (CAR CHARCODES)
+                                    (CHARCODE (EOL LINEFEED)))
+                              (KEYDOWNP 'CTRL))              (* ; 
+
                                                "user hit control CR.  create a new text or textbox.")

+                    (SKED.CREATE.NEW.TEXTBOX
 (CL:UNLESS (NEW.TEXT.SELECTIONP
 SELECTION)
+                                                 (fetch
 (SCREENELT INDIVIDUALGLOBALPART)
+                                                    of
 (fetch
 (TEXTELTSELECTION SKTEXTELT)
+                                                          of
 SELECTION)))
                            SKW
                            (CDR CHARCODES))
                     (RETURN))
-                   [(NEW.TEXT.SELECTIONP
 SELECTION)
-          
-          (* selection is in open space, create a new text element.)

-                                                             (* merge the characters into strings 
-
                                                             of each line.)

+                [COND
+                   [(NEW.TEXT.SELECTIONP
 SELECTION)          (* ; 
+
                                             "selection is in open space, create a new text element.")

+                                                             (* ; 
+
                                                    "merge the characters into strings of each line.")

                     (SETQ ELTTYPE 'TEXT)
-                    (SETQ CONTROLCHARTAIL (\SKED.INSERT.CHARS.TO.STR
 CHARCODES NIL SKW))
+                    (SETQ CONTROLCHARTAIL (\SKED.INSERT.CHARS.TO.STR
 CHARCODES NIL SKW SELECTION))
                     (COND
-                       ((OR NEWSTRS STRPIECE)
-          
-          (* if there are any new characters, add a new text element.)

-          
-          (* save the selection that marked the spot where the new text goes and add the 
-
          text but not in a way that puts an event on the history list.
-
          this is done during clean up.)

+                       ((OR NEWSTRS STRPIECE)                (* ; 
+
                                           "if there are any new characters, add a new text element.")

+
+                        (* ;; "save the selection that marked the spot where the new text goes and add the text but not in a way that puts an event on the history list.  this is done during clean up.")

 
                         (WINDOWPROP SKW 'CHANGEDTEXTELT SELECTION)
                         (SETQ NEWELT (SK.ADD.ELEMENT (CREATE.TEXT.ELEMENT
                                                       (SETQ NEWSTRS (NCONC1 NEWSTRS STRPIECE))
                                                       (SK.MAP.INPUT.PT.TO.GLOBAL (create
 INPUTPT
-                                                                                        INPUT.ONGRID? 
+                                                                                        INPUT.ONGRID?
                                                                                         _ NIL
                                                                                         
-                                                                                       INPUT.POSITION 
+                                                                                       INPUT.POSITION
                                                                                         _
                                                                                         (
 
                                                                                   SELECTION.POSITION

@@ -913,20 +881,15 @@
                                                          of
 (fetch
 (SKETCHCONTEXT SKETCHBRUSH)
                                                                of
 SKCONTEXT)))
                                             SKW T)))
-                       (CONTROLCHARTAIL 
-          
-          (* user typed control return to get textbox in the middle of no where.)

-
+                       (CONTROLCHARTAIL                      (* ; 
+
                                "user typed control return to get textbox in the middle of no where.")

                               (SKED.CREATE.NEW.TEXTBOX
 NIL SKW (CDR CONTROLCHARTAIL)
                                      ATSCALE)
                               (RETURN))
-                       (T 
-          
-          (* user typed backspace, etc. when no text exists.
-
          Put caret back in same place.)

-
+                       (T                                    (* ; 
+
                    "user typed backspace, etc.  when no text exists.  Put caret back in same place.")

                           (SKED.SET.SELECTION
 SELECTION SKW)
-                          (RETURN)))                         (* put selection marker at the end.)

+                          (RETURN)))                         (* ; "put selection marker at the end.")

                     (SETQ NEWLINE# (LENGTH NEWSTRS))
                     (SETQ NEWCHAR# (NCHARS (CAR (LAST NEWSTRS]
                    (T [SETQ GTEXTELT (fetch
 (SCREENELT INDIVIDUALGLOBALPART)
@@ -935,8 +898,8 @@
                       (SETQ ELTTYPE (fetch
 (INDIVIDUALGLOBALPART GTYPE) of
 GTEXTELT))
                       (SETQ STRLST (fetch
 (LOCALTEXT LOCALLISTOFCHARACTERS)
                                       of
 (fetch
 (SCREENELT LOCALPART) of
 TEXTELT)))
-                                                             (* set up points to beginning and end 
-
                                                             of selection.)

+                                                             (* ; 
+
                                                   "set up points to beginning and end of selection.")

                       [COND
                          [(NULL EXTENSION)
                           (SETQ LASTCHAR# (SETQ FIRSTCHAR# (fetch
 (TEXTELTSELECTION SKCHAR#)
@@ -948,9 +911,8 @@
                           (SETQ FIRSTCHAR# (fetch
 (TEXTELTSELECTION SKCHAR#) of
 SELECTION))
                           (SETQ LASTLINE# (fetch
 (TEXTELTSELECTION SKLINE#) of
 EXTENSION))
                           (SETQ LASTCHAR# (fetch
 (TEXTELTSELECTION SKCHAR#) of
 EXTENSION))
-          
-          (* make SELECTION be the candidate for the selection after the deletion.)

-
+                                                             (* ; 
+
                              "make SELECTION be the candidate for the selection after the deletion.")

                           (SETQ SELECTION EXTENSION))
                          (T (SETQ FIRSTLINE# (fetch
 (TEXTELTSELECTION SKLINE#) of
 EXTENSION))
                             (SETQ FIRSTCHAR# (fetch
 (TEXTELTSELECTION SKCHAR#) of
 EXTENSION))
@@ -958,37 +920,34 @@
                             (SETQ LASTCHAR# (fetch
 (TEXTELTSELECTION SKCHAR#) of
 SELECTION]
                       [for
 STR in
 STRLST as
 LINE# from
 1
                          do
 [COND
-                               ((ILESSP LINE# FIRSTLINE#)    (* before the first, copy across)

+                               ((ILESSP LINE# FIRSTLINE#)    (* ; "before the first, copy across")

                                 (SETQ NEWSTRS (NCONC1 NEWSTRS STR)))
-                               ((IGREATERP LINE# LASTLINE#)  (* After the last, copy across)

+                               ((IGREATERP LINE# LASTLINE#)  (* ; "After the last, copy across")

                                 (SETQ NEWSTRS (NCONC1 NEWSTRS STR)))
-                               ((EQ LINE# FIRSTLINE#)        (* on the first, save the part before.)

+                               ((EQ LINE# FIRSTLINE#)        (* ; 
+
                                                             "on the first, save the part before.")

                                 (SETQ STRPIECE (SUBSTRING STR 1 FIRSTCHAR#))
-                                                             (* insert new text.)

+                                                             (* ; "insert new text.")

                                 (COND
                                    [CHARCODES (SETQ CONTROLCHARTAIL (\SKED.INSERT.CHARS.TO.STR

                                                                      CHARCODES
                                                                      (EQ ELTTYPE 'TEXTBOX)
-                                                                     SKW))
-                                          (SETQ NEWCHAR# (COND
-                                                            (STRPIECE (NCHARS STRPIECE))
-                                                            (T 0)))
+                                                                     SKW SELECTION))
+                                          (SETQ NEWCHAR# (CL:IF STRPIECE
+                                                             (NCHARS STRPIECE)
+                                                             0))
                                           (SETQ NEWLINE# (ADD1 (LENGTH NEWSTRS]
                                    (T (SETQ NEWCHAR# FIRSTCHAR#)
                                       (SETQ NEWLINE# FIRSTLINE#]
-                            (COND
-                               ((EQ LINE# LASTLINE#)
-          
-          (* on the last, copy the part before and the part after as one)

-
+                            (CL:WHEN (EQ LINE# LASTLINE#)    (* ; 
+
                                        "on the last, copy the part before and the part after as one")

                                 (SETQ NEWSTRS (COND
                                                  [STRPIECE (NCONC1
                                                             NEWSTRS
                                                             (COND
                                                                ((EQ LASTCHAR# (NCHARS STR))
-          
-          (* special check because SUBSTRING returns NIL rather than the empty string.)

-
+                                                             (* ; 
+
                          "special check because SUBSTRING returns NIL rather than the empty string.")

                                                                 STRPIECE)
                                                                (T (CONCAT STRPIECE
                                                                          (SUBSTRING STR (ADD1 
@@ -996,53 +955,43 @@
                                                                                               ]
                                                  [(NEQ LASTCHAR# (NCHARS STR))
                                                   (NCONC1 NEWSTRS (SUBSTRING STR (ADD1 LASTCHAR#]
-                                                 (T NEWSTRS]
-          
-          (* any other windows that had this selection have had it deleted already so 
-
          this doesn't do anything for them.)

+                                                 (T NEWSTRS))))]
 
-                      [COND
-                         ((IGREATERP NEWLINE# (LENGTH NEWSTRS))
-          
-          (* this corresponds to deleting every thing in a line.
-
          Make sure that if it is the last line that the selection is reset)

+                      (* ;; "any other windows that had this selection have had it deleted already so this doesn't do anything for them.")

 
-                          (COND
+                      (CL:WHEN (IGREATERP NEWLINE# (LENGTH NEWSTRS))
+
+                          (* ;; "this corresponds to deleting every thing in a line.  Make sure that if it is the last line that the selection is reset")

+
+                          [COND
                              ((EQ (SETQ NEWLINE# (LENGTH NEWSTRS))
                                   0)
                               (SETQ NEWCHAR# 0)
                               (COND
                                  ((EQ ELTTYPE 'TEXT)
-          
-          (* deleted everything in a text element, delete the text element and set the 
-
          selection to new text cursor.)

+
+                                  (* ;; "deleted everything in a text element, delete the text element and set the selection to new text cursor.")

 
                                   (COND
                                      [(WINDOWPROP SKW 'CHANGEDTEXTELT)
-          
-          (* make the history event for this edit so that it will restore the original 
-
          text element)

-
-                                      (PROG ((INITSELECTION (WINDOWPROP SKW 'CHANGEDTEXTELT NIL)))
-                                            (COND
-                                               ((POSITIONP INITSELECTION)
-          
-          (* this text element was typing that was never officially added, don't record 
-
          the deletion either.)

-
-                                                (SK.DELETE.ELEMENT (LIST TEXTELT)
-                                                       SKW
-                                                       'DON'T))
-                                               (T 
-          
-          (* selection was existing text, record this as a delete event.)

-
-                                                  (SK.DELETE.ELEMENT
-                                                   (LIST TEXTELT)
-                                                   SKW
-                                                   (LIST (fetch
 (SCREENELT GLOBALPART)
-                                                            of
 (fetch
 (TEXTELTSELECTION SKTEXTELT)
-                                                                  of
 INITSELECTION]
+                                                             (* ; 
+
             "make the history event for this edit so that it will restore the original text element")

+                                      (LET ((INITSELECTION (WINDOWPROP SKW 'CHANGEDTEXTELT NIL)))
+                                           (COND
+                                              ((POSITIONP INITSELECTION)
+                                                             (* ; 
+
    "this text element was typing that was never officially added, don't record the deletion either.")

+                                               (SK.DELETE.ELEMENT (LIST TEXTELT)
+                                                      SKW
+                                                      'DON'T))
+                                              (T             (* ; 
+
                                        "selection was existing text, record this as a delete event.")

+                                                 (SK.DELETE.ELEMENT (LIST TEXTELT)
+                                                        SKW
+                                                        (LIST (fetch
 (SCREENELT GLOBALPART)
+                                                                 of
 (fetch
 (TEXTELTSELECTION 
+                                                                                  SKTEXTELT)
+                                                                       of
 INITSELECTION]
                                      (T (SK.DELETE.ELEMENT (LIST TEXTELT)
                                                SKW)))
                                   (SKED.SET.SELECTION
 (SK.SCALE.POSITION.INTO.VIEWER
@@ -1052,16 +1001,14 @@
                                                        (VIEWER.SCALE SKW))
                                          SKW)
                                   (RETURN NIL))
-                                 ((EQ ELTTYPE 'TEXTBOX)      (* deleted everything in a textbox)

+                                 ((EQ ELTTYPE 'TEXTBOX)      (* ; "deleted everything in a textbox")

                                   NIL)))
-                             (T (SETQ NEWCHAR# (NCHARS (CAR (LAST NEWSTRS]
+                             (T (SETQ NEWCHAR# (NCHARS (CAR (LAST NEWSTRS])
                       (SETQ PTRCHAR# (SKED.CHARACTERPOSITION
 NEWSTRS NEWLINE# NEWCHAR#))
                       (COND
                          ((WINDOWPROP SKW 'CHANGEDTEXTELT)
-          
-          (* this is not the first change to the text element.
-
          Collect the changes so that only one element is put on the undo stack, not one 
-
          for each character.)

+
+                          (* ;; "this is not the first change to the text element.  Collect the changes so that only one element is put on the undo stack, not one for each character.")

 
                           (SETQ NEWELT (SK.UPDATE.ELEMENT (fetch
 (SCREENELT GLOBALPART) of
 TEXTELT)
                                               (SK.REPLACE.TEXT.IN.ELEMENT (fetch
 (SCREENELT 
@@ -1070,12 +1017,10 @@
                                                      NEWSTRS)
                                               SKW T)))
                          ((AND CONTROLCHARTAIL (NEQ CONTROLCHARTAIL 'UNDO))
-          
-          (* user typed a character command to create a new text box.
-
          Create it and put the remaining characters in it and set the cursor there.)

-          
-          (* this is done here so that no undo event is created for the textbox that the 
-
          user was in when all they did was type a control-cr.)

+
+                          (* ;; "user typed a character command to create a new text box.  Create it and put the remaining characters in it and set the cursor there.")

+
+                          (* ;; "this is done here so that no undo event is created for the textbox that the user was in when all they did was type a control-cr.")

 
                           (SKED.CREATE.NEW.TEXTBOX
 (fetch
 (SCREENELT INDIVIDUALGLOBALPART)
                                                       of
 NEWELT)
@@ -1083,9 +1028,7 @@
                                  (CDR CONTROLCHARTAIL))
                           (RETURN))
                          (T 
-          
-          (* this is the first edit change to a new element, call the PREEDITFN and save 
-
          old text element so undo event can be constructed when the selection changes.)

+                            (* ;; "this is the first edit change to a new element, call the PREEDITFN and save old text element so undo event can be constructed when the selection changes.")

 
                             (OR (SK.CHECK.PREEDITFN SKW (fetch
 (SCREENELT GLOBALPART) of
 TEXTELT))
                                 (RETURN NIL))
@@ -1096,9 +1039,8 @@
                                                        NEWSTRS)
                                                 SKW))
                             (WINDOWPROP SKW 'CHANGEDTEXTELT SELECTION)))
-          
-          (* recalculate the line %# and char %# of the insertion point as the textboxes 
-
          at least do justification.)

+
+                      (* ;; "recalculate the line # and char # of the insertion point as the textboxes at least do justification.")

 
                       [SETQ NEWCHAR# (CDR (SETQ NEWLINE# (SKED.LINE.AND.CHAR#

                                                           (fetch
 (LOCALTEXTBOX LOCALLISTOFCHARACTERS)
@@ -1106,62 +1048,22 @@
                                                                    of
 NEWELT))
                                                           PTRCHAR#]
                       (SETQ NEWLINE# (CAR NEWLINE#]
-            UNDO
-                (COND
-                   ((NULL CONTROLCHARTAIL)
-          
-          (* set the selection to where the characters were just inserted.)

 
+           (* ;; "Cleanup")

+
+                (COND
+                   ((NULL CONTROLCHARTAIL)                   (* ; 
+
                                      "set the selection to where the characters were just inserted.")

                     (SKED.SET.SELECTION
 (CREATE.TEXT.SELECTION
 NEWELT NEWLINE# NEWCHAR# NIL NIL
                                                (WINDOWPROP SKW 'DSP))
                            SKW))
-                   [(EQ CONTROLCHARTAIL 'UNDO)
-          
-          (* user types in an undo after some characters or while selection was in the 
-
          middle of text.)

-
-                    (PROG (INITSELECTION EDITEDELT)
-                          (COND
-                             ((SETQ INITSELECTION (WINDOWPROP SKW 'CHANGEDTEXTELT NIL))
-                                                             (* in the middle of editing, undo 
-
                                                             these edits.)

-                              [SETQ EDITEDELT (fetch
 (SCREENELT GLOBALPART)
-                                                 of
 (OR NEWELT (fetch
 (TEXTELTSELECTION SKTEXTELT)
-                                                                  of
 (OR SELECTION (ERROR 
-                                                                  "NO SELECTION WHEN THERE SHOULD BE"
-                                                                                          ]
-          
-          (* add event to history list so the undo can be undone.)

-
-                              (COND
-                                 ((POSITIONP INITSELECTION)
-          
-          (* add an ADD event because previously there was nothing here.)

-
-                                  (SK.ADD.HISTEVENT 'ADD (LIST EDITEDELT)
-                                         SKW)
-                                  (SK.CHECK.END.INITIAL.EDIT SKW EDITEDELT))
-                                 (T (SK.ENTER.EDIT.CHANGE
 SKW (fetch
 (SCREENELT GLOBALPART)
-                                                                 of
 (fetch
 (TEXTELTSELECTION 
-                                                                                  SKTEXTELT)
-                                                                       of
 INITSELECTION))
-                                           EDITEDELT)))
-                              (SK.UNDO.LAST SKW)
-                              (SKED.SET.SELECTION
 INITSELECTION SKW))
-                             (T 
-          
-          (* haven't edited any characters in the current element, just undo the last 
-
          thing.)

-
-                                (SK.UNDO.LAST SKW]
+                   ((EQ CONTROLCHARTAIL 'UNDO)               (* ; 
+
          "user types in an undo after some characters or while selection was in the middle of text.")

+                    (\SKED.INSERT.UNDO
 NEWELT SELECTION))
                    (T 
-          
-          (* user typed a character command to create a new text box.
-
          Create it and put the remaining characters in it and set the cursor there.)

-          
-          (* set the selection so that adding the new text box will create an undo event 
-
          for the character change that took place in this text box before the control-cr 
-
          was typed.)

+                      (* ;; "user typed a character command to create a new text box.  Create it and put the remaining characters in it and set the cursor there.")

+
+                      (* ;; "set the selection so that adding the new text box will create an undo event for the character change that took place in this text box before the control-cr was typed.")

 
                       (SKED.SET.SELECTION
 (CREATE.TEXT.SELECTION
 NEWELT NEWLINE# NEWCHAR# NIL NIL
                                                  (WINDOWPROP SKW 'DSP))
@@ -1170,6 +1072,96 @@
                              SKW
                              (CDR CONTROLCHARTAIL])
 
+(\SKED.ARROWKEYS

+  [LAMBDA (ACTION SKW SELECTION)
                             (* ; "Edited  2-Dec-2025 10:03 by rmk")

+
+    (* ;; "Move the caret left/right/up/down according to the arrow keys")

+
+    (CL:UNLESS SELECTION
+        (SETQ SELECTION (WINDOWPROP SKW 'SELECTION)))
+    (CL:WHEN (AND SELECTION (NOT (POSITIONP SELECTION)))
+        (LET* [(CHAR# (fetch
 (TEXTELTSELECTION SKCHAR#) of
 SELECTION))
+               (LINE# (fetch
 (TEXTELTSELECTION SKLINE#) of
 SELECTION))
+               (TEXTELT (fetch
 (TEXTELTSELECTION SKTEXTELT) of
 SELECTION))
+               (SKLEFT (fetch
 (TEXTELTSELECTION SKLEFT) of
 SELECTION))
+               (LINES (fetch
 (TEXT LISTOFCHARACTERS) of
 (fetch
 (SCREENELT INDIVIDUALGLOBALPART)
+                                                           of
 TEXTELT]
+              (SELECTQ ACTION
+                  (:ONECHAR.BACKWARD 
+                       (if
 (EQ CHAR# 0)
+                           then
 (add
 LINE# -1)
+                                [SETQ CHAR# (NCHARS (CAR (NTH LINES LINE#]
+                         else
 (add
 CHAR# -1)))
+                  (:ONECHAR.FORWARD 
+                       (if
 [EQ CHAR# (NCHARS (CAR (NTH LINES LINE#]
+                           then
 (add
 LINE# 1)
+                                (SETQ CHAR# 1)
+                         else
 (add
 CHAR# 1)))
+                  (:LINE.UP (add
 LINE# -1)
+                            (CL:UNLESS (ILESSP LINE# 1)
+                                (SETQ CHAR# (CLOSEST.CHAR
 SKLEFT LINE# TEXTELT SKW))))
+                  (:LINE.DOWN (add
 LINE# 1)
+                              (CL:UNLESS (IGREATERP LINE# (LENGTH LINES))
+                                  (SETQ CHAR# (CLOSEST.CHAR
 SKLEFT LINE# TEXTELT SKW))))
+                  (SHOULDNT))
+              (CL:WHEN (<= 1 LINE# (LENGTH LINES))
+                  (SKED.SELECTION.FEEDBACK
 SKW)
+                  (SKED.SET.SELECTION
 (create
 TEXTELTSELECTION
+                                         using
 SELECTION SKCHAR# _ CHAR# SKLINE# _ LINE# SKLEFT _
+                                               (CHAR.BEGIN
 CHAR# LINE# (fetch
 (TEXTELTSELECTION
+                                                                               SKTEXTELT)
+                                                                          of
 SELECTION)
+                                                      SKW)
+                                               SKBOTTOM _ (LINE.BEGIN
 LINE# TEXTELT))
+                         SKW))))])
+
+(\SKED.INSERT.ACTION

+  [LAMBDA (CHARCODES SKW)
                                    (* ; "Edited  1-Dec-2025 22:28 by rmk")

+    (LET [(ACTION (SK.GETSYNTAX
 (CAR CHARCODES]
+         (SELECTQ ACTION
+             (:UNDO (\SKED.INSERT.UNDO
 SKW)
+                    T)
+             ((:ONECHAR.BACKWARD :ONECHAR.FORWARD :LINE.UP :LINE.DOWN) 
+                  (\SKED.ARROWKEYS
 ACTION SKW)
+                  T)
+             NIL])
+
+(\SKED.INSERT.UNDO

+  [LAMBDA (SKW NEWELT SELECTION)
                             (* ; "Edited  1-Dec-2025 23:21 by rmk")


+                                                             (* ; "Edited  1-Dec-2025 12:56 by rmk")


+                                                             (* ; "Edited  1-Dec-2025 12:48 by rmk")

+    (CL:UNLESS SELECTION
+        (SETQ SELECTION (WINDOWPROP SKW 'SELECTION)))
+    (PROG (INITSELECTION EDITEDELT)
+          (COND
+             ((SETQ INITSELECTION (WINDOWPROP SKW 'CHANGEDTEXTELT NIL))
+                                                             (* ; 
+
                                                        "in the middle of editing, undo these edits.")

+              [SETQ EDITEDELT (fetch
 (SCREENELT GLOBALPART) of
 (OR NEWELT (fetch
 (TEXTELTSELECTION
+                                                                                  SKTEXTELT)
+                                                                             of
 (OR SELECTION
+                                                                                    (ERROR 
+                                                                  "NO SELECTION WHEN THERE SHOULD BE"
+                                                                                           ]
+                                                             (* ; 
+
                                               "add event to history list so the undo can be undone.")

+              (COND
+                 ((POSITIONP INITSELECTION)                  (* ; 
+
                                        "add an ADD event because previously there was nothing here.")

+                  (SK.ADD.HISTEVENT 'ADD (LIST EDITEDELT)
+                         SKW)
+                  (SK.CHECK.END.INITIAL.EDIT SKW EDITEDELT))
+                 (T (SK.ENTER.EDIT.CHANGE
 SKW (fetch
 (SCREENELT GLOBALPART)
+                                                 of
 (fetch
 (TEXTELTSELECTION SKTEXTELT) of
 
+                                                                                        INITSELECTION
+                                                           ))
+                           EDITEDELT)))
+              (SK.UNDO.LAST SKW)
+              (SKED.SET.SELECTION
 INITSELECTION SKW))
+             (T                                              (* ; 
+
                    "haven't edited any characters in the current element, just undo the last thing.")

+                (SK.UNDO.LAST SKW])
+
 (FIRST.N.ELEMENTS

   [LAMBDA (LST N)
                                            (* rrb "20-Jan-86 18:05")

           
@@ -1332,164 +1324,140 @@
                            (NCHARS (CAR (LAST STRLST])
 
 (\SKED.DELETE.WORD.FROM.STRING

-  [LAMBDA (STRING)
                                           (* rrb "11-Jul-86 17:17")

-          
-          (* returns a string that has the last word of STRING deleted.)

+  [LAMBDA (STRING)
                                           (* ; "Edited 30-Nov-2025 08:06 by rmk")

+                                                             (* rrb "11-Jul-86 17:17")

+
+    (* ;; "returns a string that has the last word of STRING deleted.")

 
     (PROG ((END (NCHARS STRING))
            CLASS)
       SKBLANKS
           (COND
-             ((EQ END 0)                                     (* ran out of characters.)

+             ((EQ END 0)                                     (* ; "ran out of characters.")

               (RETURN))
-             ((EQ (SETQ CLASS (SK.WORD.BREAK.CLASS
 (NTHCHARCODE STRING END)))
+             ((EQ (SETQ CLASS (TEDIT.WORDGET (NTHCHARCODE STRING END)))
                   22)
               (SETQ END (SUB1 END))
-              (GO SKBLANKS)))
-          
-          (* now skip characters that have the same class as the first one encountered.)

-
+              (GO SKBLANKS)))                                (* ; 
+
                         "now skip characters that have the same class as the first one encountered.")

       SKSAME
           (SETQ END (SUB1 END))
           (COND
-             ((EQ END 0)                                     (* ran out of characters.)

+             ((EQ END 0)                                     (* ; "ran out of characters.")

               (RETURN))
-             ((EQ (SK.WORD.BREAK.CLASS
 (NTHCHARCODE STRING END))
+             ((EQ (TEDIT.WORDGET (NTHCHARCODE STRING END))
                   CLASS)
               (GO SKSAME))
              (T (RETURN (SUBSTRING STRING 1 END])
 
 (\SKED.INSERT.CHARS.TO.STR

-  [LAMBDA (CHARCODES INCLUDECR SKW)
                          (* rrb "11-Jul-86 17:18")

+  [LAMBDA (CHARCODES INCLUDECR SKW SELECTION)
                (* ; "Edited  1-Dec-2025 00:42 by rmk")


+                                                             (* ; "Edited 24-Nov-2025 08:40 by rmk")


+                                                             (* ; "Edited 12-Nov-2025 14:50 by rmk")


+                                                             (* ; "Edited 10-Nov-2025 16:35 by rmk")

+                                                             (* rrb "11-Jul-86 17:18")

     (DECLARE
 (SPECVARS NEWSTRS STRPIECE))
-          
-          (* takes a list of characters and makes it into strings on the free variable 
-
          NEWSTRS. The variable STRPIECE is set to the last line of characters.
-
          NEWSTRS is a list of the strings that precede this one which is used in the 
-
          case of backspace onto the previous line.)

 
-    (PROG (LINELST THISLINE REMAININGCHARS CLASS)
-          [for
 CHAR in
 CHARCODES
+    (* ;; "takes a list of characters and makes it into strings on the free variable NEWSTRS.  The variable STRPIECE is set to the last line of characters.  NEWSTRS is a list of the strings that precede this one which is used in the case of backspace onto the previous line.")

+
+    (* ;; "SELECTION is for the actions that move the type-in")

+
+    (PROG (LINELST THISLINE REMAININGCHARS)
+          (for
 CHAR in
 CHARCODES
              do
 (SELECTQ (SK.GETSYNTAX
 CHAR)
-                    (CHARDELETE                              (* delete the previous character.)

-                                [COND
-                                   (THISLINE                 (* easy case of deleting type in.)

-                                          (SETQ THISLINE (CDR THISLINE)))
-                                   (LINELST                  (* deleting a typed in CR.)

-                                          (SETQ THISLINE (CAR LINELST))
-                                          (SETQ LINELST (CDR LINELST)))
-                                   [STRPIECE                 (* remove the previous character from 
-
                                                             the current string.)

-                                          (COND
-                                             ((EQ (NCHARS STRPIECE)
-                                                  1)
-                                              (SETQ STRPIECE NIL))
-                                             (T (SETQ STRPIECE (SUBSTRING STRPIECE 1 -2]
-                                   [NEWSTRS (SETQ STRPIECE (CAR (LAST NEWSTRS)))
-                                          (SETQ NEWSTRS (BUTLAST
 NEWSTRS))
-                                          (COND
-                                             ((EQ (NTHCHARCODE STRPIECE -1)
-                                                  (CHARCODE EOL))
-                                                             (* remove previous eol)

-                                              (COND
-                                                 ((EQ (NCHARS STRPIECE)
-                                                      1)
-                                                  (SETQ STRPIECE NIL))
-                                                 (T (SETQ STRPIECE (SUBSTRING STRPIECE 1 -2]
-                                   (T                        (* no characters to delete)

-                                      (FLASHW
 (TTYDISPLAYSTREAM])
-                    (WORDDELETE                              (* delete the previous word)

-          
-          (* use the TEdit word bounding readtable.
-
          Code are%: character = 21 -
-
          space = 22 -
-
          punctuation = 20)

+                    (NIL                                     (* ; "Ordinary characters:  just insert")

+                         (COND
+                            [(MEMB CHAR (CHARCODE (EOL LINEFEED)))
+                                                             (* ; "eol")

+                             (COND
+                                ((KEYDOWNP 'CTRL)            (* ; 
+
                        "user entered control return, save remaining characters and return indicator")

+                                 (SETQ REMAININGCHARS (MEMB CHAR CHARCODES))
+                                 (RETURN))
+                                (T (push
 LINELST (COND
+                                                    (INCLUDECR 
+                                                             (* ; 
+
                                                           "text boxes need to have the CRs left in.")

+                                                           (CONS (CHARCODE EOL)
+                                                                 THISLINE))
+                                                    (T THISLINE)))
+                                   (SETQ THISLINE NIL]
+                            (T 
+                               (* ;; "add this character onto the front of this line;  reversal will happen before conversion to string and return.")

 
-                                [COND
-                                   [[OR THISLINE (PROG1 (SETQ THISLINE (CAR LINELST))
-                                                        (SETQ LINELST (CDR LINELST]
-                                                             (* easy case of deleting type in.)

-          
-          (* if this line was empty, skip the cr that created it as part of the white 
-
          space before the word.)

-                                                             (* skip any whitespace)

-                                    (COND
-                                       ([NULL (SETQ THISLINE (for
 TAIL on
 THISLINE
-                                                                while
 (EQ (SK.WORD.BREAK.CLASS

-                                                                           (CAR TAIL))
-                                                                          22)
-                                                                finally
 (RETURN TAIL]
-          
-          (* the whitespace backed up to the beginning of a line.
-
          quit there.)

+                               (push
 THISLINE CHAR))))
+                    (:CHARDELETE.BACKWARD                    (* ; "delete the previous character.")

+                         [COND
+                            (THISLINE                        (* ; "easy case of deleting type in.")

+                                   (SETQ THISLINE (CDR THISLINE)))
+                            (LINELST                         (* ; "deleting a typed in CR.")

+                                   (SETQ THISLINE (pop
 LINELST)))
+                            (STRPIECE                        (* ; 
+
                                             "remove the previous character from the current string.")

+                                   (SETQ STRPIECE (SUBSTRING STRPIECE 1 -2)))
+                            [NEWSTRS (SETQ STRPIECE (CAR (LAST NEWSTRS)))
+                                   (SETQ NEWSTRS (BUTLAST
 NEWSTRS))
+                                   (CL:WHEN (EQ (NTHCHARCODE STRPIECE -1)
+                                                (CHARCODE EOL))
+                                                             (* ; "remove previous eol")

+                                       (SETQ STRPIECE (SUBSTRING STRPIECE 1 -2)))]
+                            (T                               (* ; "no characters to delete")

+                               (FLASHW
 (TTYDISPLAYSTREAM])
+                    (:WORDDELETE.BACKWARD                    (* ; "delete the previous word. Tedit binds DEL to CHARDELETE.FORWARD, sketch used DEL to delete the word")

+                         
+                         (* ;; "use the TEdit word bounding readtable.  Code are: character = 21 --- space = 22 --- punctuation = 20")

 
-                                        NIL)
-                                       (T (SETQ CLASS (SK.WORD.BREAK.CLASS
 (CAR THISLINE)))
-          
-          (* skip all things of the same class as the first character before the 
-
          whitespace)

+                         [COND
+                            [(OR THISLINE (SETQ THISLINE (pop
 LINELST)))
+                                                             (* ; "easy case of deleting type in.")

+                                                             (* ; 
+
    "if this line was empty, skip the cr that created it as part of the white space before the word.")

+                                                             (* ; "skip any whitespace")

+                             (CL:WHEN (SETQ THISLINE (find
 TAIL on
 THISLINE
+                                                        suchthat
 (NEQ (TEDIT.WORDGET (CAR TAIL))
+                                                                      22)))
+                                                             (* ; 
+
                       "the whitespace didn't backed up to the beginning of a line, something to do.")

+                                                             (* ; 
+
                     "skip all things of the same class as the first character before the whitespace")

+                                 (SETQ THISLINE (find
 TAIL (CLASS _ (TEDIT.WORDGET (CAR THISLINE)))
+                                                   on
 THISLINE
+                                                   suchthat
 (NEQ (TEDIT.WORDGET (CAR TAIL))
+                                                                 CLASS))))]
+                            (STRPIECE                        (* ; 
+
                                             "remove the previous character from the current string.")

+                                   (SETQ STRPIECE (\SKED.DELETE.WORD.FROM.STRING
 STRPIECE)))
+                            (NEWSTRS [SETQ STRPIECE (\SKED.DELETE.WORD.FROM.STRING

+                                                     (CAR (LAST NEWSTRS]
+                                   (SETQ NEWSTRS (BUTLAST
 NEWSTRS)))
+                            (T                               (* ; "no characters to delete")

+                               (FLASHW
 (TTYDISPLAYSTREAM])
+                    ((:WORDDELETE.FORWARD :CHARDELETE.FORWARD) 
+                                                             (* ; "Not implemented, no-ops")

+                         NIL)
+                    (:DELETE                                 (* ; 
+
                                          "delete selection.  Here that means don't insert anything.")
)
+                    (:UNDO 
+                           (* ;; "Undo in the middle of the charcodes. By side effect this flushes any characters typed after the undo but it's not clear where they should go anyway.")

 
-                                          (SETQ THISLINE (for
 TAIL on
 THISLINE
-                                                            until
 (NEQ (SK.WORD.BREAK.CLASS

-                                                                        (CAR TAIL))
-                                                                       CLASS)
-                                                            finally
 (RETURN TAIL]
-                                   (STRPIECE                 (* remove the previous character from 
-
                                                             the current string.)

-                                          (SETQ STRPIECE (\SKED.DELETE.WORD.FROM.STRING
 STRPIECE)))
-                                   (NEWSTRS [SETQ STRPIECE (\SKED.DELETE.WORD.FROM.STRING

-                                                            (CAR (LAST NEWSTRS]
-                                          (SETQ NEWSTRS (BUTLAST
 NEWSTRS)))
-                                   (T                        (* no characters to delete)

-                                      (FLASHW
 (TTYDISPLAYSTREAM])
-                    (DELETE                                  (* delete selection.
-
                                                             Here that means don't insert anything.)
)
-                    (UNDO 
-          
-          (* by side effect this flushes any characters typed after the undo but it's not 
-
          clear where they should go anyway.)

-
-                          (RETURN 'UNDO))
-                    ((REDO FN CMD) 
+                           (RETURN 'UNDO))
+                    ((:REDO :CMD)                            (* ; "There are many more Tedit actions that we don't deal with here, these were called out when Sketch was using \TEDIT.GETSYNTAX or GETSYNTAX.  Not clear we need this message, just fall through and treat REDO/CMD like other actions, as ordinary characters")

                          (STATUSPRINT SKW "
 " "Not implemented in this editor. Sorry."))
-                    (COND
-                       [(OR (EQ CHAR (CHARCODE EOL))
-                            (EQ CHAR (CHARCODE LINEFEED)))   (* eol)

-                        (COND
-                           ((KEYDOWNP 'CTRL)
-          
-          (* user entered control return, save remaining characters and return indicator)

-
-                            (SETQ REMAININGCHARS (MEMB CHAR CHARCODES))
-                            (RETURN))
-                           (T (SETQ LINELST (CONS (COND
-                                                     (INCLUDECR 
-                                                             (* text boxes need to have the CRs 
-
                                                             left in.)

-                                                            (CONS (CHARCODE EOL)
-                                                                  THISLINE))
-                                                     (T THISLINE))
-                                                  LINELST))
-                              (SETQ THISLINE NIL]
-                       (T 
-          
-          (* add this character onto the front of this line;
-
          reversal will happen before conversion to string and return.)

-
-                          (SETQ THISLINE (CONS CHAR THISLINE]
+                    (PROGN                                   (* ; "All other actions")

+                           NIL)))
           (COND
-             [LINELST                                        (* had a cr in the character set.)

+             [LINELST                                        (* ; "had a cr in the character set.")

                     [SETQ NEWSTRS (NCONC NEWSTRS [CONS (JOINCHARS
 STRPIECE (REVERSE
                                                                             (CAR (LAST LINELST]
                                          (for
 CHLST in
 (REVERSE (BUTLAST
 LINELST))
                                             collect
 (STRINGFROMCHARACTERS
 (REVERSE CHLST]
                     (SETQ STRPIECE (STRINGFROMCHARACTERS
 (REVERSE THISLINE]
-             [THISLINE                                       (* no new lines, add these characters 
-
                                                             onto STRPIECE)

+             [THISLINE                                       (* ; 
+
                                                   "no new lines, add these characters onto STRPIECE")

                     (SETQ STRPIECE (JOINCHARS
 STRPIECE (REVERSE THISLINE]
-             (T                                              (* no new lines, or characters, leave 
-
                                                             STRPIECE alone.)

+             (T                                              (* ; 
+
                                                 "no new lines, or characters, leave STRPIECE alone.")

                 NIL))
           (RETURN REMAININGCHARS])
 
@@ -1557,7 +1525,7 @@
 
 
 
-(* line adding functions)

+(* ; "line adding functions")

 
 (DEFINEQ
 
@@ -1916,7 +1884,7 @@
     (WINDOWPROP SKW 'INPUTLINE NIL])
 )
 
-                                                             (* Was MODERNIZE loaded before?)

+                                                             (* ; "Was MODERNIZE loaded before?")

 
 (CL:WHEN (GETD 'MODERNWINDOW.SETUP)
     (MODERNWINDOW.SETUP 'WB.BUTTON.HANDLER))
@@ -1953,26 +1921,27 @@
            YCOORD _ (LASTMOUSEY WIN])
 )
 (DECLARE%: DONTCOPY
-  (FILEMAP (NIL (2425 39533 (BUTLAST 2435 . 2783) (CHAR.BEGIN 2785 . 4710) (CLOSEST.CHAR 4712 . 8935) (
-CLOSEST.LINE 8937 . 9499) (FLASHW 9501 . 9658) (HILITE.LINE 9660 . 10479) (HILITE.TEXT 10481 . 12129) 
-(IN.TEXT.EXTEND 12131 . 15404) (INIMAGEOBJ 15406 . 15911) (INTEXT 15913 . 16410) (NEW.TEXT.EXTEND 
-16412 . 18631) (NEW.TEXT.SELECTIONP 18633 . 18813) (NTHCHARWIDTH 18815 . 19072) (NTHLOCALREGION 19074
- . 19312) (ONCHAR 19314 . 19709) (SHOW.EXTENDED.SELECTION.FEEDBACK 19711 . 20646) (SHOW.FEEDBACK 20648
- . 21138) (SHOW.FEEDBACK.BOX 21140 . 22194) (SELECTION.POSITION 22196 . 22988) (SKED.CLEAR.SELECTION 
-22990 . 23513) (SKETCH.CLEANUP 23515 . 25429) (SK.ENTER.EDIT.CHANGE 25431 . 26976) (
-SKED.REMOVE.OTHER.SELECTIONS 26978 . 27405) (SKED.EXTEND.SELECTION 27407 . 28872) (SKED.MOVE.SELECTION
- 28874 . 34035) (CREATE.TEXT.SELECTION 34037 . 34553) (SKED.SELECTION.FEEDBACK 34555 . 36211) (
-SKED.SET.EXTENDSELECTION 36213 . 36530) (SKED.SET.SELECTION 36532 . 36932) (LINE.BEGIN 36934 . 37488) 
-(SELECTION.GREATERP 37490 . 38285) (SK.WORD.BREAK.CLASS 38287 . 39127) (SK.GETSYNTAX 39129 . 39531)) (
-40375 86109 (WB.EDITOR 40385 . 41710) (SK.TTYENTRYFN 41712 . 41990) (SK.TTYEXITFN 41992 . 42261) (
-SKED.INSERT 42263 . 42691) (\SKED.INSERT 42693 . 63815) (FIRST.N.ELEMENTS 63817 . 64084) (
-SKED.CREATE.NEW.TEXTBOX 64086 . 70615) (SKED.CHARACTERPOSITION 70617 . 71404) (SKED.LINE.AND.CHAR# 
-71406 . 73037) (\SKED.DELETE.WORD.FROM.STRING 73039 . 74078) (\SKED.INSERT.CHARS.TO.STR 74080 . 82491)
- (JOINCHARS 82493 . 82880) (STRINGFROMCHARACTERS 82882 . 83207) (GETALLCHARS 83209 . 83550) (
-CLEANUP.EDIT 83552 . 84004) (SKED.NEW.TEXTELT 84006 . 86107)) (86144 107152 (
-MAP.SCREEN.POSITION.ONTO.GRID 86154 . 87603) (NEAREST.ON.GRID 87605 . 88149) (SK.MIDDLE.TITLEFN 88151
- . 90094) (WB.BUTTON.HANDLER 90096 . 97918) (WB.ADD.NEW.POINT 97920 . 101249) (WB.DRAWLINE 101251 . 
-105485) (WB.RUBBERBAND.POSITION 105487 . 106404) (SK.RUBBERBAND.FEEDBACKFN 106406 . 106910) (
-RESET.LINE.BEING.INPUT 106912 . 107150)) (107334 108575 (NEAREST.EXISTING.POSITION 107344 . 107546) (
-WB.NEARPT 107548 . 108433) (LASTMOUSEPOSITION 108435 . 108573)))))
+  (FILEMAP (NIL (2849 39635 (BUTLAST 2859 . 3207) (CHAR.BEGIN 3209 . 5332) (CLOSEST.CHAR 5334 . 9557) (
+CLOSEST.LINE 9559 . 10121) (FLASHW 10123 . 10280) (HILITE.LINE 10282 . 11101) (HILITE.TEXT 11103 . 
+12751) (IN.TEXT.EXTEND 12753 . 16026) (INIMAGEOBJ 16028 . 16533) (INTEXT 16535 . 17032) (
+NEW.TEXT.EXTEND 17034 . 19253) (NEW.TEXT.SELECTIONP 19255 . 19435) (NTHCHARWIDTH 19437 . 19694) (
+NTHLOCALREGION 19696 . 19934) (ONCHAR 19936 . 20331) (SHOW.EXTENDED.SELECTION.FEEDBACK 20333 . 21268) 
+(SHOW.FEEDBACK 21270 . 21760) (SHOW.FEEDBACK.BOX 21762 . 22816) (SELECTION.POSITION 22818 . 23610) (
+SKED.CLEAR.SELECTION 23612 . 24135) (SKETCH.CLEANUP 24137 . 26051) (SK.ENTER.EDIT.CHANGE 26053 . 27598
+) (SKED.REMOVE.OTHER.SELECTIONS 27600 . 28027) (SKED.EXTEND.SELECTION 28029 . 29494) (
+SKED.MOVE.SELECTION 29496 . 34566) (CREATE.TEXT.SELECTION 34568 . 35084) (SKED.SELECTION.FEEDBACK 
+35086 . 36742) (SKED.SET.EXTENDSELECTION 36744 . 37061) (SKED.SET.SELECTION 37063 . 37463) (LINE.BEGIN
+ 37465 . 38019) (SELECTION.GREATERP 38021 . 38816) (SK.GETSYNTAX 38818 . 39633)) (40480 91009 (
+WB.EDITOR 40490 . 41871) (SK.TTYENTRYFN 41873 . 42413) (SK.TTYEXITFN 42415 . 42941) (SKED.INSERT 42943
+ . 43371) (\SKED.INSERT 43373 . 62845) (\SKED.ARROWKEYS 62847 . 65442) (\SKED.INSERT.ACTION 65444 . 
+65888) (\SKED.INSERT.UNDO 65890 . 68431) (FIRST.N.ELEMENTS 68433 . 68700) (SKED.CREATE.NEW.TEXTBOX 
+68702 . 75231) (SKED.CHARACTERPOSITION 75233 . 76020) (SKED.LINE.AND.CHAR# 76022 . 77653) (
+\SKED.DELETE.WORD.FROM.STRING 77655 . 78819) (\SKED.INSERT.CHARS.TO.STR 78821 . 87391) (JOINCHARS 
+87393 . 87780) (STRINGFROMCHARACTERS 87782 . 88107) (GETALLCHARS 88109 . 88450) (CLEANUP.EDIT 88452 . 
+88904) (SKED.NEW.TEXTELT 88906 . 91007)) (91048 112056 (MAP.SCREEN.POSITION.ONTO.GRID 91058 . 92507) (
+NEAREST.ON.GRID 92509 . 93053) (SK.MIDDLE.TITLEFN 93055 . 94998) (WB.BUTTON.HANDLER 95000 . 102822) (
+WB.ADD.NEW.POINT 102824 . 106153) (WB.DRAWLINE 106155 . 110389) (WB.RUBBERBAND.POSITION 110391 . 
+111308) (SK.RUBBERBAND.FEEDBACKFN 111310 . 111814) (RESET.LINE.BEING.INPUT 111816 . 112054)) (112242 
+113483 (NEAREST.EXISTING.POSITION 112252 . 112454) (WB.NEARPT 112456 . 113341) (LASTMOUSEPOSITION 
+113343 . 113481)))))
 STOP
diff --git a/library/sketch/SKETCH-EDIT.LCOM b/library/sketch/SKETCH-EDIT.LCOM
index 91cd662b55dcda48a3aec8489a93ead8e56b91c8..9f6a8cd7d9a5c531457b86c90077190564b0ac15 100644
GIT binary patch
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diff --git a/library/sketch/SKETCH-ELEMENTS b/library/sketch/SKETCH-ELEMENTS
index ca3acf54..5e56caa3 100644
--- a/library/sketch/SKETCH-ELEMENTS
+++ b/library/sketch/SKETCH-ELEMENTS
@@ -1,14 +1,12 @@
 (DEFINE-FILE-INFO PACKAGE "INTERLISP" READTABLE "INTERLISP" BASE 10)
 
-
(FILECREATED " 5-Dec-2023 00:16:52" {WMEDLEY}<library>sketch>SKETCH-ELEMENTS.;1
 554138 
+
(FILECREATED "30-Nov-2025 10:57:24" {WMEDLEY}<library>SKETCH>SKETCH-ELEMENTS.;25
 545903 
 
       :EDIT-BY rmk
 
-      :CHANGES-TO (RECORDS LOCALCIRCLE CIRCLE LOCALELLIPSE ELLIPSE KNOTELT LOCALCURVE OPENCURVE 
-                         CLOSEDCURVE LOCALCLOSEDCURVE LOCALCLOSEDWIRE LOCALWIRE WIRE CLOSEDWIRE TEXT
-                         LOCALTEXT LOCALTEXTBOX TEXTBOX BOX LOCALBOX ARC LOCALARC)
+      :CHANGES-TO (FNS SK.CHANGE.TEXT SK.CHANGE.FONT)
 
-      :PREVIOUS-DATE " 4-Aug-2022 09:57:43" {WMEDLEY}<library>sketch>SKETCHELEMENTS.;2)
+      :PREVIOUS-DATE " 8-Nov-2025 14:02:38" {WMEDLEY}<library>SKETCH>SKETCH-ELEMENTS.;24)
 
 
 (PRETTYCOMPRINT SKETCH-ELEMENTSCOMS)
@@ -122,9 +120,8 @@
                    READ.TEXT TEXT.POSITION.AND.CREATE CREATE.TEXT.ELEMENT SK.UPDATE.TEXT.AFTER.CHANGE
                    SK.TEXT.FROM.TEXTBOX TEXT.SET.GLOBAL.REGIONS TEXT.REGIONFN TEXT.GLOBALREGIONFN 
                    TEXT.TRANSLATEFN TEXT.TRANSFORMFN TEXT.TRANSLATEPTSFN TEXT.UPDATEFN SK.CHANGE.TEXT
-                   TEXT.SET.SCALES BREAK.AT.CARRIAGE.RETURNS)
-              (FNS ADD.KNOWN.SKETCH.FONT SK.PICK.FONT SK.CHOOSE.TEXT.FONT SK.NEXTSIZEFONT 
-                   SK.DECREASING.FONT.LIST SK.GUESS.FONTSAVAILABLE)
+                   SK.CHANGE.FONT TEXT.SET.SCALES BREAK.AT.CARRIAGE.RETURNS)
+              (FNS SK.PICK.FONT SK.CHOOSE.TEXT.FONT SK.NEXTSIZEFONT SK.DECREASING.FONT.LIST)
               (INITVARS (\KNOWN.SKETCH.FONTSIZES))
               (GLOBALVARS \KNOWN.SKETCH.FONTSIZES)
               (DECLARE%: DONTCOPY (RECORDS TEXT LOCALTEXT))
@@ -136,7 +133,6 @@
               (VARS INDICATE.TEXT.SHADE)
               [INITVARS (SK.DEFAULT.FONT)
                      (SK.DEFAULT.TEXT.ALIGNMENT '(CENTER BASELINE]
-              (INITVARS \FONTSONFILE)
               (ADDVARS (SK.HORIZONTAL.STYLES LEFT RIGHT CENTER)
                      (SK.VERTICAL.STYLES TOP CENTER BASELINE BOTTOM))
               (VARS (SKETCH.TERMTABLE (CREATE.SKETCH.TERMTABLE)))
@@ -4575,10 +4571,13 @@ Click outside the window to stop.")
           (RETURN (AND VAL (LIST COMMAND VAL])
 
 (\SK.READ.FONT.SIZE1

-  [LAMBDA (SELECTEDELTS SKETCHW NEWFAMILY)
                   (* rrb "14-Jul-86 13:43")

-          
-          (* reads a font size from the user. If NEWFONT is NIL, use the one of the first 
-
          selected element.)

+  [LAMBDA (SELECTEDELTS SKETCHW NEWFAMILY)
                   (* ; "Edited  6-Nov-2025 22:35 by rmk")

+                                                             (* rrb "14-Jul-86 13:43")

+                                                             (* ; 
+
    "reads a font size from the user.  If NEWFONT is NIL, use the one of the first selected element.")

+
+         (* reads a font size from the user. If NEWFONT is NIL, use the one of the first 
+
         selected element.)

 
     (PROG (FIRSTTEXTELT NEWSIZE NOWFONT NEWFONT)
           (OR (SETQ FIRSTTEXTELT (for
 SCRNELT inside
 SELECTEDELTS
@@ -4606,7 +4605,7 @@ Click outside the window to stop.")
                       (STATUSPRINT SKETCHW NEWFAMILY NEWSIZE " not found.")
                       NIL)
                      (T (CLOSE.PROMPT.WINDOW
 SKETCHW)
-                        (SK.FONTNAMELIST NEWFONT])
+                        (FONTPROP NEWFONT 'SPEC])
 
 (SK.TEXT.ELT.WITH.SAME.FIELDS

   [LAMBDA (NEWONE ORGONE)
                                    (* rrb "18-Jul-85 14:16")

@@ -4635,26 +4634,33 @@ Click outside the window to stop.")
         NIL])
 
 (SK.READFONTFAMILY

-  [LAMBDA (SKW TITLE)
                                        (* rrb "21-Nov-85 11:28")

-                                                             (* reads a font family name.)

-    (PROG ([KNOWNFAMILIES (UNION (for
 X in
 \FONTSONFILE collect
 (CAR X))
-                                 (for
 X in
 \FONTSINCORE collect
 (CAR X]
-           FAMILY)                                           (* offers a menu of possible choices.)

-          (COND
-             ((AND KNOWNFAMILIES (NEQ (SETQ FAMILY (\CURSOR.IN.MIDDLE.MENU

-                                                    (create
 MENU
-                                                           ITEMS _
-                                                           (APPEND '(("other" 'OTHER 
+  [LAMBDA (SKW TITLE)
                                        (* ; "Edited  4-Nov-2025 15:08 by rmk")

+                                                             (* rrb "21-Nov-85 11:28")

+
+    (* ;; "Offers a menu of existing DISPLAY font families, with Other has a way for the user to type one in.  Other makes sense only if there are file fonts that are not yet known to Sketch.")

+
+    (* ;; "RMK: Sketch used to keep its own family-by-device cache, separate from \FONTSINCORE.  But the way it was set up, those fonts were created in core when they were identified, so FONTSAVAILABLE would find them them on \FONTSINCORE.  Here we scan all devices, not just display, to catch whatever might have shown up for a nondisplay device.  So this simulates that behavior.")

+
+    (* ;; "But for a user interaction like this, isn't it only DISPLAY families that matter, the descending-font lists for other devices are not relevant.  So maybe we really want only DISPLAY here.")

+
+    (LET (KNOWNFAMILIES FAMILY)
+         (for
 FS in
 (FONTSAVAILABLE '* '* NIL NIL '*) do
 (pushnew
 KNOWNFAMILIES (fetch
 (FONTSPEC
+                                                                                        FSFAMILY)
+                                                                                   of
 FS)))
+         (if
 (AND KNOWNFAMILIES (NEQ (SETQ FAMILY (\CURSOR.IN.MIDDLE.MENU

+                                                   (create
 MENU
+                                                          ITEMS _ [APPEND
+                                                                   (SORT KNOWNFAMILIES)
+                                                                   '(("other" 'OTHER 
                                                               "prompts for a family not on the menu."
-                                                                            )) KNOWNFAMILIES)
-                                                           TITLE _ (OR TITLE "Choose font")
-                                                           CENTERFLG _ T)))
-                                      'OTHER))
-              (RETURN FAMILY))
-             (T                                              (* grab the tty.)

-                (TTY.PROCESS (THIS.PROCESS))
-                (RETURN (CAR (ERSETQ (MKATOM (U-CASE (PROMPTFORWORD "New family: " NIL NIL
-                                                            (GETPROMPTWINDOW SKW])
+                                                                            ]
+                                                          TITLE _ (OR TITLE "Choose font")
+                                                          CENTERFLG _ T)))
+                                     'OTHER))
+             then
 FAMILY
+           else
 (CAR (ERSETQ (MKATOM (U-CASE (TTYINPROMPTFORWORD "New family: " NIL NIL (
+                                                                                      GETPROMPTWINDOW
+                                                                                         SKW])
 
 (CLOSE.PROMPT.WINDOW

   [LAMBDA (WINDOW)
                                           (* rrb "28-Oct-84 14:14")

@@ -5189,44 +5195,36 @@ Click outside the window to stop.")
               (RETURN NEWSCREENELT])
 
 (SK.CHANGE.TEXT

-  [LAMBDA (ELTWITHTEXT HOW SKW)
                              (* ; "Edited  7-Apr-87 13:41 by rrb")

+  [LAMBDA (ELTWITHTEXT HOW SKW)
                              (* ; "Edited 30-Nov-2025 10:55 by rmk")


+                                                             (* ; "Edited  8-Nov-2025 14:02 by rmk")


+                                                             (* ; "Edited  7-Nov-2025 09:05 by rmk")


+                                                             (* ; "Edited  7-Apr-87 13:41 by rrb")

     (PROG ((COMMAND (CADR HOW))
            (PROPERTY 'FONT)
-           NEWVALUE GINDTEXTELT NEWGTEXT OLDVALUE OLDFACE GTYPE)
-          (OR HOW (RETURN))                                  (* take down the caret before any 
-
                                                             change.)

+           NEWVALUE GINDTEXTELT NEWGTEXT OLDFONT GTYPE)
+          (CL:UNLESS HOW (RETURN))                           (* ; 
+
                                                             "take down the caret before any change.")

           (SKED.CLEAR.SELECTION SKW)
-          (COND
-             ((MEMB (SETQ GTYPE (fetch
 (GLOBALPART GTYPE) of
 ELTWITHTEXT))
-                    '(TEXTBOX TEXT))
+          (CL:WHEN (MEMB (SETQ GTYPE (fetch
 (GLOBALPART GTYPE) of
 ELTWITHTEXT))
+                         '(TEXTBOX TEXT))
               (SETQ GINDTEXTELT (fetch
 (GLOBALPART INDIVIDUALGLOBALPART) of
 ELTWITHTEXT))
-          
-          (* set the old value to the old font. In the case where the thing that changes 
-
          is the justification, this will get re-set)

-
-              (SETQ OLDVALUE (fetch
 (TEXT FONT) of
 GINDTEXTELT))
+              (SETQ OLDFONT (fetch
 (TEXT FONT) of
 GINDTEXTELT))
               (SETQ NEWGTEXT
                (SELECTQ (CAR HOW)
                    (TEXT (SELECTQ COMMAND
-                             ((SMALLER LARGER)               (* change the font)

+                             ((SMALLER LARGER)               (* ; "change the font")

                                   [COND
-                                     [[SETQ NEWVALUE (SK.NEXTSIZEFONT
 COMMAND
-                                                            (LIST (FONTPROP OLDVALUE 'FAMILY)
-                                                                  (FONTPROP OLDVALUE 'SIZE]
-                                                             (* if there is an appropriate size 
-
                                                             font, use it.)

-                                      [SETQ NEWVALUE (LIST (FONTPROP NEWVALUE 'FAMILY)
-                                                           (FONTPROP NEWVALUE 'SIZE)
-                                                           (FONTPROP OLDVALUE 'FACE]
-                                      (COND
-                                         ((EQ GTYPE 'TEXT)
-                                          (create
 TEXT using
 GINDTEXTELT FONT _ NEWVALUE))
-                                         (T (create
 TEXTBOX using
 GINDTEXTELT FONT _ NEWVALUE]
-                                     (T                      (* otherwise just scale the area some.)

-                                        (SETQ NEWVALUE (FTIMES (SETQ OLDVALUE (fetch
 (TEXT 
+                                     ((SETQ NEWVALUE (SK.NEXTSIZEFONT
 COMMAND OLDFONT))
+                                                             (* ; 
+
                                                      "if there is an appropriate size font, use it.")

+                                      (OR (SK.CHANGE.FONT
 SKW ELTWITHTEXT NEWVALUE NIL)
+                                          (RETURN)))
+                                     (T                      (* ; 
+
                                                             "otherwise just scale the area some.")

+                                        (SETQ NEWVALUE (FTIMES (SETQ OLDFONT (fetch
 (TEXT 
                                                                                          INITIALSCALE
-                                                                                           )
-                                                                                 of
 GINDTEXTELT))
+                                                                                          )
+                                                                                of
 GINDTEXTELT))
                                                               (SELECTQ COMMAND
                                                                   (LARGER 1.4)
                                                                   0.7142858)))
@@ -5236,18 +5234,18 @@ Click outside the window to stop.")
                                             (create
 TEXT using
 GINDTEXTELT INITIALSCALE _ NEWVALUE))
                                            (T (create
 TEXTBOX using
 GINDTEXTELT INITIALSCALE _ 
                                                                     NEWVALUE])
-                             ((CENTER LEFT RIGHT)            (* change the horizontal justification)

-                                  [SETQ NEWVALUE (LIST COMMAND (CADR (SETQ OLDVALUE
-                                                                      (fetch
 (TEXT TEXTSTYLE)
-                                                                         of
 GINDTEXTELT]
+                             ((CENTER LEFT RIGHT)            (* ; 
+
                                                             "change the horizontal justification")

+                                  (SETQ OLDFONT (fetch
 (TEXT TEXTSTYLE) of
 GINDTEXTELT))
+                                  (SETQ NEWVALUE (LIST COMMAND (CADR OLDFONT)))
                                   (SETQ PROPERTY 'JUSTIFICATION)
                                   (COND
                                      ((EQ GTYPE 'TEXT)
                                       (create
 TEXT using
 GINDTEXTELT TEXTSTYLE _ NEWVALUE))
                                      (T (create
 TEXTBOX using
 GINDTEXTELT TEXTSTYLE _ NEWVALUE))))
-                             ((TOP BOTTOM MIDDLE BASELINE)   (* change the vertical justification)

-                                  [SETQ NEWVALUE (LIST (CAR (SETQ OLDVALUE (fetch
 (TEXT TEXTSTYLE)
-                                                                              of
 GINDTEXTELT)))
+                             ((TOP BOTTOM MIDDLE BASELINE)   (* ; "change the vertical justification")

+                                  (SETQ OLDFONT (fetch
 (TEXT TEXTSTYLE) of
 GINDTEXTELT))
+                                  [SETQ NEWVALUE (LIST (CAR OLDFONT)
                                                        (COND
                                                           ((EQ COMMAND 'MIDDLE)
                                                            'CENTER)
@@ -5257,28 +5255,27 @@ Click outside the window to stop.")
                                      ((EQ GTYPE 'TEXT)
                                       (create
 TEXT using
 GINDTEXTELT TEXTSTYLE _ NEWVALUE))
                                      (T (create
 TEXTBOX using
 GINDTEXTELT TEXTSTYLE _ NEWVALUE))))
-                             ((BOLD UNBOLD ITALIC UNITALIC)  (* change the face)

-                                  (SETQ OLDFACE (FONTPROP OLDVALUE 'FACE))
-                                  [SETQ NEWVALUE (LIST (FONTPROP OLDVALUE 'FAMILY)
-                                                       (FONTPROP OLDVALUE 'SIZE)
-                                                       (LIST (SELECTQ COMMAND
-                                                                 (BOLD 'BOLD)
-                                                                 (UNBOLD 'MEDIUM)
-                                                                 (CAR OLDFACE))
-                                                             (SELECTQ COMMAND
-                                                                 (ITALIC 'ITALIC)
-                                                                 (UNITALIC 'REGULAR)
-                                                                 (CADR OLDFACE))
-                                                             (CADDR OLDFACE]
-                                  (COND
-                                     ((EQ GTYPE 'TEXT)
-                                      (create
 TEXT using
 GINDTEXTELT FONT _ NEWVALUE))
-                                     (T (create
 TEXTBOX using
 GINDTEXTELT FONT _ NEWVALUE))))
-                             (BOX                            (* if it is a text element, BOX it)

+                             ((BOLD UNBOLD ITALIC UNITALIC)  (* ; "change the face")

+                                  (OR [SK.CHANGE.FONT
 SKW ELTWITHTEXT NIL NIL
+                                             (MAKEFONTFACE (SELECTQ COMMAND
+                                                               (BOLD 'BOLD)
+                                                               (UNBOLD 'MEDIUM)
+                                                               NIL)
+                                                    (SELECTQ COMMAND
+                                                        (ITALIC 'ITALIC)
+                                                        (UNITALIC 'REGULAR)
+                                                        NIL)
+                                                    NIL
+                                                    (FONTPROP (fetch
 (TEXT FONT) of
 GINDTEXTELT)
+                                                           'FACE]
+                                      (RETURN)))
+                             (BOX                            (* ; 
+
                                                             "RMK 2025:  RETURN MEANS NO HISTORY?")

+                                                             (* ; "if it is a text element, BOX it")

                                   [COND
                                      ((EQ GTYPE 'TEXT)
                                       (RETURN (SK.TEXTBOX.FROM.TEXT
 ELTWITHTEXT SKW])
-                             (UNBOX                          (* if it is a text box, unbox it.)

+                             (UNBOX                          (* ; "if it is a text box, unbox it.")

                                     [COND
                                        ((EQ GTYPE 'TEXTBOX)
                                         (RETURN (SK.TEXT.FROM.TEXTBOX
 ELTWITHTEXT SKW])
@@ -5286,72 +5283,32 @@ Click outside the window to stop.")
                                               ((EQ GTYPE 'TEXT)
                                                (RETURN (SK.LOOKEDSTRING.FROM.TEXT ELTWITHTEXT SKW])
                              (SHOULDNT)))
-                   (SETSIZE (SETQ NEWVALUE COMMAND)
-                            (COND
-                               [(EQ (FONTPROP NEWVALUE 'FAMILY)
-                                    (FONTPROP OLDVALUE 'FAMILY))
-          
-          (* if the families are the same, change them, otherwise don't as it isn't known 
-
          whether or not this family has the right size.)

+                   (SETSIZE 
+                            (* ;; "if the families are the same, change them, otherwise don't as it isn't known whether or not this family has the right size.")

 
-                                (COND
-                                   [(EQ GTYPE 'TEXT)
-                                    (create
 TEXT using
 GINDTEXTELT FONT _ (LIST (FONTPROP
-                                                                                 OLDVALUE
-                                                                                 'FAMILY)
-                                                                                (FONTPROP
-                                                                                 NEWVALUE
-                                                                                 'SIZE)
-                                                                                (FONTPROP
-                                                                                 OLDVALUE
-                                                                                 'FACE]
-                                   (T (create
 TEXTBOX using
 GINDTEXTELT FONT _
-                                                            (LIST (FONTPROP OLDVALUE 'FAMILY)
-                                                                  (FONTPROP NEWVALUE 'SIZE)
-                                                                  (FONTPROP OLDVALUE 'FACE]
-                               (T (RETURN))))
-                   (NEWFONT                                  (* set the font family)

-                            [SETQ NEWVALUE (LIST COMMAND (FONTPROP OLDVALUE 'SIZE)
-                                                 (FONTPROP OLDVALUE 'FACE]
-                            (COND
-                               ((NULL (FONTCREATE NEWVALUE NIL NIL NIL NIL T))
-                                (STATUSPRINT SKW "  Couldn't find " (CAR NEWVALUE)
-                                       " in size "
-                                       (CADR NEWVALUE))
-                                (RETURN)))
-                            (COND
-                               ((EQ GTYPE 'TEXT)
-                                (create
 TEXT using
 GINDTEXTELT FONT _ NEWVALUE))
-                               (T (create
 TEXTBOX using
 GINDTEXTELT FONT _ NEWVALUE))))
-                   (FAMILY&SIZE                              (* set the font family and size)

-                                [SETQ NEWVALUE (LIST (CAR COMMAND)
-                                                     (CADR COMMAND)
-                                                     (FONTPROP (fetch
 (TEXT FONT) of
 GINDTEXTELT)
-                                                            'FACE]
-                                (COND
-                                   ((EQ GTYPE 'TEXT)
-                                    (create
 TEXT using
 GINDTEXTELT FONT _ NEWVALUE))
-                                   (T (create
 TEXTBOX using
 GINDTEXTELT FONT _ NEWVALUE))))
-                   (SAME 
-          
-          (* set all of the font characteristics from the first selected one.)

-          
-          (* set the variables to cause the right things to go into the change spec 
-
          event.)

-
-                         (SETQ OLDVALUE ELTWITHTEXT)
+                            [AND (EQ (FONTPROP COMMAND 'FAMILY)
+                                     (FONTPROP OLDFONT 'FAMILY))
+                                 (SK.CHANGE.FONT
 SKW ELTWITHTEXT NIL (FONTPROP COMMAND 'SIZE])
+                   (NEWFONT                                  (* ; "set the font family")

+                            (SK.CHANGE.FONT
 SKW ELTWITHTEXT COMMAND))
+                   (FAMILY&SIZE                              (* ; "set the font family and size")

+                                (SK.CHANGE.FONT
 SKW ELTWITHTEXT (CAR COMMAND)
+                                       (CADR COMMAND)))
+                   (SAME                                     (* ; 
+
                                   "set all of the font characteristics from the first selected one.")

+                                                             (* ; 
+
                      "set the variables to cause the right things to go into the change spec event.")

+                         (SETQ OLDFONT ELTWITHTEXT)
                          (SETQ PROPERTY 'LOOKSAME)
                          (SETQ NEWVALUE (SK.TEXT.ELT.WITH.SAME.FIELDS
 (fetch
 (GLOBALPART 
                                                                                  INDIVIDUALGLOBALPART
                                                                                     ) of
 COMMAND)
                                                GINDTEXTELT)))
                    (SHOULDNT)))
+              (CL:UNLESS NEWGTEXT (RETURN))
               [SETQ NEWGTEXT (COND
-                                [(EQ GTYPE 'TEXT)
-          
-          (* adjust the scales at which this appears because font or scale may have 
-
          changed.)

-
+                                [(EQ GTYPE 'TEXT)            (* ; 
+
                    "adjust the scales at which this appears because font or scale may have changed.")

                                  (TEXT.SET.SCALES
 (create
 GLOBALPART
                                                          COMMONGLOBALPART _ (fetch
 (GLOBALPART 
                                                                                      COMMONGLOBALPART
@@ -5360,11 +5317,8 @@ Click outside the window to stop.")
                                                          INDIVIDUALGLOBALPART _ (
 
                                                                              TEXT.SET.GLOBAL.REGIONS

                                                                                  NEWGTEXT]
-                                (T 
-          
-          (* scaling for text boxes depends on the box size which can't change in this 
-
          function.)

-
+                                (T                           (* ; 
+
                "scaling for text boxes depends on the box size which can't change in this function.")

                                    (create
 GLOBALPART
                                           COMMONGLOBALPART _ (fetch
 (GLOBALPART COMMONGLOBALPART)
                                                                 of
 ELTWITHTEXT)
@@ -5375,7 +5329,32 @@ Click outside the window to stop.")
                              OLDELT _ ELTWITHTEXT
                              PROPERTY _ PROPERTY
                              NEWVALUE _ NEWVALUE
-                             OLDVALUE _ OLDVALUE])
+                             OLDVALUE _ OLDFONT)))])
+
+(SK.CHANGE.FONT

+  [LAMBDA (SKW ELTWITHTEXT FAMILY SIZE FACE)
                 (* ; "Edited 30-Nov-2025 10:50 by rmk")


+                                                             (* ; "Edited  7-Nov-2025 09:09 by rmk")

+    (LET (NEWFS)
+         [if
 (FONTP FAMILY)
+             then
 (SETQ NEWFS (FONTPROP FAMILY 'SPEC))
+           else
 [SETQ NEWFS (OR (LISTP FAMILY)
+                                (MAKEFONTSPEC FAMILY SIZE FACE NIL NIL (fetch
 (TEXT FONT)
+                                                                          of
 (fetch
 (GLOBALPART
+                                                                                     
+                                                                                 INDIVIDUALGLOBALPART
+                                                                                     ) of
 ELTWITHTEXT
+                                                                                    ]
+                (CL:UNLESS (FONTCREATE NEWFS NIL NIL NIL NIL T)
+                    (STATUSPRINT SKW "  Couldn't find " (fetch
 (FONTSPEC FSFAMILY) of
 NEWFS)
+                           " in size "
+                           (fetch
 (FONTSPEC FSSIZE) of
 NEWFS)))]
+         (CL:WHEN NEWFS
+             (if
 (EQ (fetch
 (GLOBALPART GTYPE) of
 ELTWITHTEXT)
+                     'TEXT)
+                 then
 (create
 TEXT using
 (fetch
 (GLOBALPART INDIVIDUALGLOBALPART) of
 ELTWITHTEXT)
+                                         FONT _ NEWFS)
+               else
 (create
 TEXTBOX using
 (fetch
 (GLOBALPART INDIVIDUALGLOBALPART) of
 ELTWITHTEXT)
+                                          FONT _ NEWFS)))])
 
 (TEXT.SET.SCALES

   [LAMBDA (GTEXTELT)
                                         (* rrb "12-May-85 16:29")

@@ -5418,321 +5397,188 @@ Click outside the window to stop.")
 )
 (DEFINEQ
 
-(ADD.KNOWN.SKETCH.FONT

-  [LAMBDA (FAMILY WID DEVICE FONT)                           (* ; "Edited 10-May-93 16:49 by rmk:")

-                                                             (* ; "Edited 21-Feb-89 15:06 by snow")

-
-    (* ;; "add to the globally cached font list")

-
-    (DECLARE
 (GLOBALVARS \KNOWN.SKETCH.FONTSIZES))
-    [LET ((CACHE (ASSOC FAMILY \KNOWN.SKETCH.FONTSIZES))
-          (CACHED))
-         (COND
-            [(NULL CACHE)
-             (if
 \KNOWN.SKETCH.FONTSIZES
-                 then
 [NCONC1 \KNOWN.SKETCH.FONTSIZES (LIST FAMILY (LIST DEVICE (CONS WID FONT]
-               else
 (SETQ \KNOWN.SKETCH.FONTSIZES (LIST (LIST FAMILY (LIST DEVICE
-                                                                               (CONS WID FONT]
-            (T (COND
-                  ((SETQ CACHED (ASSOC DEVICE CACHE))
-                   (NCONC1 CACHED (CONS WID FONT)))
-                  (T (NCONC1 CACHE (CONS DEVICE (CONS WID FONT]
-    FONT])
-
 (SK.PICK.FONT

-  [LAMBDA (WID STRING DEVICE DISPLAYGFONT)                   (* ; "Edited 10-May-93 17:11 by rmk:")

-                                                             (* ; "Edited 22-Feb-89 07:53 by snow")

+  [LAMBDA (WID STRING DEVICE DISPLAYFONT)
                    (* ; "Edited  6-Nov-2025 10:41 by rmk")


+                                                             (* ; "Edited  1-Sep-2025 13:02 by rmk")


+                                                             (* ; "Edited 10-May-93 17:11 by rmk:")


+                                                             (* ; "Edited 22-Feb-89 07:53 by snow")

 
-    (* ;; "returns the font in FAMILY that text should be printed in to have the text STRING fit into a region WID points wide")

+    (* ;; "RMK 2025:  This is weird, and I'm not sure that the original ever worked.  It is called from only one place (SK.CHOOSE.TEXT.FONT), with one constant STRING.  I believe it is trying to associate with DISPLAYFONT's family a corresponding DEVICE font for which the width of that string would be closest to WID without being larger than that.  It caches that font for WID, since that really is just a constant.")

+
+    (* ;; "Returns the font in DISPLAYFONT's  family that text should be printed in to have the text STRING fit into a region WID points wide.  The value can also be the atom SHADE, if there is no font small enough for STRING.")

 
     (DECLARE
 (GLOBALVARS \KNOWN.SKETCH.FONTSIZES))
-    (LET
-     [STARTFONT FONTWIDTH SCALE CACHEDFONT SIZE (FAMILY (FONTPROP DISPLAYGFONT 'FAMILY]
-     (IF
 [SETQ CACHEDFONT (ASSOC WID (ASSOC DEVICE (ASSOC FAMILY \KNOWN.SKETCH.FONTSIZES]
-         THEN
 (CDR CACHEDFONT)
-       ELSE
 (SETQ STARTFONT (FONTCOPY DISPLAYGFONT 'DEVICE DEVICE))
-             NIL
-             (SETQ SCALE (FONTPROP STARTFONT 'SCALE))
-             (SETQ SIZE (FONTPROP STARTFONT 'SIZE))
-             [SETQ FONTWIDTH (COND
-                                (SCALE 
-                                       (* ;; "IF THERE IS A SCALE, YOU MUST SCALE THE WIDTH.")

+    (LET ((FAMILY (FONTPROP DISPLAYFONT 'FAMILY))
+          STARTFONT FONTWIDTH SCALE CACHEDFONT AVAIL TOOSMALL)
+         (if
 (SGETMULTI \KNOWN.SKETCH.FONTSIZES FAMILY DEVICE WID (FONTPROP DISPLAYFONT 'FACE))
+           else
 (SETQ STARTFONT (FONTCOPY DISPLAYFONT 'DEVICE DEVICE))
+                (SETQ SCALE (FONTPROP STARTFONT 'SCALE))
+                (SETQ FONTWIDTH (STRINGWIDTH STRING STARTFONT))
+                (CL:IF SCALE
+                    (SETQ FONTWIDTH (FIXR (QUOTIENT FONTWIDTH SCALE))))
+                (if
 (IEQP FONTWIDTH WID)
+                    then
 (PUTMULTI \KNOWN.SKETCH.FONTSIZES FAMILY DEVICE WID STARTFONT)
+                  else
 
+                       (* ;; "FONTSAVAILABLE sorts in increasing size order, so our first guess is either after or before the position of STARTFONT in the list.  This assumes that the widths are proportional to font sizes.")

 
-                                       (FIXR (QUOTIENT (STRINGWIDTH STRING STARTFONT)
-                                                    SCALE)))
-                                (T (STRINGWIDTH STRING STARTFONT]
-             [SETQ CACHEDFONT
-              (IF
 (IGREATERP FONTWIDTH WID)
-                  THEN
 
+                       (SETQ TOOSMALL (ILESSP FONTWIDTH WID))
+                       (SETQ AVAIL (FONTSAVAILABLE (create
 FONTSPEC using
 (FONTPROP STARTFONT
+                                                                                 'SPEC)
+                                                                          FSSIZE _ '*)
+                                          NIL NIL NIL NIL T)) 
 
-                        (* ;; "Font width was too big, try smaller fonts in decreasing size.")

+                       (* ;; 
+
  "If STARTFONT width is too big, try smaller fonts, otherwise bigger ones.  CDR skips the STARTFONT")

 
-                        [FOR
 FONT IN
 [CDR (FIND
 F
-                                                     ON
 [SORT (FONTSAVAILABLE FAMILY '*
-                                                                         'MRR 0 DEVICE T)
-                                                                  (FUNCTION (LAMBDA (F1 F2)
-                                                                              (IGREATERP (CADR F1)
-                                                                                     (CADR F2]
-                                                     SUCHTHAT
 (EQ SIZE (CADR F]
-                           WHEN
 (ILESSP [SETQ FONTWIDTH (COND
-                                                               (SCALE 
-                                                                      (* ;; 
-
                                                   "IF THERE IS A SCALE, YOU MUST SCALE THE WIDTH.")

+                       (for
 FS FONT (PREVFONT _ STARTFONT)
+                            (PREVWIDTH _ FONTWIDTH) in
 [CDR (MEMBER (FONTPROP STARTFONT 'SPEC)
+                                                                   (CL:IF TOOSMALL
+                                                                       AVAIL
+                                                                       (REVERSE AVAIL))]
+                          eachtime
 (SETQ FONT (FONTCREATE FS))
+                                (SETQ FONTWIDTH (STRINGWIDTH STRING FONT))
+                                (CL:IF SCALE
+                                    (SETQ FONTWIDTH (FIXR (QUOTIENT FONTWIDTH SCALE))))
+                          until
 (CL:IF TOOSMALL
+                                    (IGREATERP FONTWIDTH WID)
+                                    (ILESSP FONTWIDTH WID)) do
 (SETQ PREVFONT FONT)
+                                                               (SETQ PREVWIDTH FONTWIDTH)
+                          finally
 
 
-                                                                      (FIXR (QUOTIENT (STRINGWIDTH
-                                                                                       STRING FONT)
-                                                                                   SCALE)))
-                                                               (T (STRINGWIDTH STRING FONT]
-                                           WID) DO
 (RETURN (ADD.KNOWN.SKETCH.FONT
 FAMILY WID
-                                                                      DEVICE FONT))
-                           FINALLY
 (RETURN (ADD.KNOWN.SKETCH.FONT

-                                                FAMILY WID DEVICE
-                                                (IF
 (GREATERP FONTWIDTH (TIMES 1.5 WID))
-                                                    THEN
 'SHADE
-                                                  ELSEIF
 (OR FONT STARTFONT]
-                ELSEIF
 (IEQP FONTWIDTH WID)
-                  THEN
 (ADD.KNOWN.SKETCH.FONT
 FAMILY WID DEVICE STARTFONT)
-                ELSE
 
+                                (* ;; "We ran over, return the previous")

 
-                      (* ;; "FONT width was too small, try bigger fonts.")

-
-                      (FOR
 FONT PREVFONT
-                         IN
 [CDR (FIND
 F ON
 [SORT (FONTSAVAILABLE FAMILY '* 'MRR 0 DEVICE
-                                                                     T)
-                                                              (FUNCTION (LAMBDA (F1 F2)
-                                                                          (ILESSP (CADR F1)
-                                                                                 (CADR F2]
-                                        SUCHTHAT
 (EQ SIZE (CADR F]
-                         DO
 (IF
 (IGREATERP (COND
-                                                      (SCALE 
-                                                             (* ;; 
-
                                                   "IF THERE IS A SCALE, YOU MUST SCALE THE WIDTH.")

-
-                                                             (FIXR (QUOTIENT (STRINGWIDTH STRING FONT
-                                                                                    )
-                                                                          SCALE)))
-                                                      (T (STRINGWIDTH STRING FONT)))
-                                               WID)
-                                    THEN
 (RETURN (ADD.KNOWN.SKETCH.FONT
 FAMILY WID DEVICE 
-                                                            PREVFONT)))
-                               (SETQ PREVFONT FONT) FINALLY
 (RETURN (ADD.KNOWN.SKETCH.FONT

-                                                                         FAMILY WID DEVICE
-                                                                         (OR FONT PREVFONT STARTFONT]
-             (IF
 (FONTP CACHEDFONT)
-                 THEN
                                    (* ; "Could be SHADE")

-                       (FONTCOPY CACHEDFONT 'FACE (FONTPROP DISPLAYGFONT 'FACE))
-               ELSE
 CACHEDFONT])
+                                (CL:UNLESS TOOSMALL
+                                    (CL:WHEN (GREATERP PREVWIDTH (TIMES 1.5 WID))
+                                                             (* ; "If we get too small, return SHADE")

+                                        (SETQ PREVFONT 'SHADE)))
+                                (SPUTMULTI \KNOWN.SKETCH.FONTSIZES FAMILY DEVICE WID
+                                       (FONTPROP DISPLAYFONT 'FACE)
+                                       PREVFONT)
+                                (RETURN PREVFONT])
 
 (SK.CHOOSE.TEXT.FONT

-  [LAMBDA (GTEXT SCALE VIEWER)                               (* ; "Edited 10-May-93 16:18 by rmk:")

-                                                             (* ; "Edited  1-Nov-91 16:56 by jds")

+  [LAMBDA (GTEXT SCALE VIEWER)
                               (* ; "Edited  6-Nov-2025 00:08 by rmk")


+                                                             (* ; "Edited 10-May-93 16:18 by rmk:")


+                                                             (* ; "Edited  1-Nov-91 16:56 by jds")

 
-    (* ;; "returns the font that text in the individual global part of a text or textbox element GTEXT should be displayed in when shown in VIEWER.")

+    (* ;; "returns the font that text in the individual global part of a text or textbox element GTEXT should be displayed in when shown in VIEWER.")

 
     (PROG ([VIEWERFONTCACHE (OR (AND (WINDOWP VIEWER)
                                      (WINDOWPROP VIEWER 'PICKFONTCACHE))
                                 (AND (STREAMP VIEWER)
                                      (STREAMPROP VIEWER 'PICKFONTCACHE]
            (GFONT (fetch
 (TEXT FONT) of
 GTEXT))
-           LOCALFONT)
+           (CANONICALTESTSTR "AWIaiw")
+           LOCALFONT CANONICALWIDTH DEVICE DISPLAYGFONT)
+          (CL:WHEN (SETQ LOCALFONT (SASSOC GFONT VIEWERFONTCACHE))
+                                                             (* ; "look in the viewer's font cache.")

+              (RETURN (CDR LOCALFONT)))
+          [SETQ DEVICE (COND
+                          ((STREAMP VIEWER)
+                           (fetch
 (IMAGEOPS IMAGETYPE) of
 (fetch
 (STREAM IMAGEOPS) of
 VIEWER)))
+                          (T 'DISPLAY]
           [COND
-             ((SETQ LOCALFONT (SASSOC GFONT VIEWERFONTCACHE))(* ; 
-
                                                           "look in the viewer's font cache.")

-              (RETURN (CDR LOCALFONT]
-          (RETURN (PROG ((CANONICALTESTSTR "AWIaiw")
-                         CANONICALWIDTH DEVICE DISPLAYGFONT)
-                        [SETQ DEVICE (COND
-                                        ((STREAMP VIEWER)
-                                         (fetch
 (IMAGEOPS IMFONTCREATE)
-                                            of
 (fetch
 (STREAM IMAGEOPS) of
 VIEWER)))
-                                        (T 'DISPLAY]
-                        [COND
-                           ((EQUAL (TIMES SCALE (DSPSCALE NIL VIEWER))
-                                   (fetch
 (TEXT INITIALSCALE) of
 GTEXT))
+             ((EQUAL (TIMES SCALE (DSPSCALE NIL VIEWER))
+                     (fetch
 (TEXT INITIALSCALE) of
 GTEXT))
 
-                            (* ;; "special case scales being the same so there is not a large delay when first character is typed and to avoid font look up problems when hardcopying at scale 1")

+              (* ;; "special case scales being the same so there is not a large delay when first character is typed and to avoid font look up problems when hardcopying at scale 1")

 
-                            (SETQ LOCALFONT (FONTCREATE GFONT NIL NIL NIL DEVICE)))
-                           (T 
-                              (* ;; "use a canonical string to determine the font size so that all strings of a given font at a given scale look the same.  If font is determined by the width of the particular string, two different string will appear in different fonts.  In particular, the string may change fonts as the user is typing into it.")

+              (SETQ LOCALFONT (FONTCREATE GFONT NIL NIL NIL DEVICE)))
+             (T 
+                (* ;; "Use a canonical string to determine the font size so that all strings of a given font at a given scale look the same.  If font is determined by the width of the particular string, two different strings will appear in different fonts.  In particular, the string may change fonts as the user is typing into it.")

 
-                              (* ;; "don't use the face information when determining string width because in some cases HELVETICA 10, the bold is smaller than the regular.")

+                (* ;; "The canonical width here is the natural font width having somehow taken into account the scale of the viewer and the initialscale of the text.")

 
-                              (SETQ DISPLAYGFONT (FONTCREATE GFONT NIL NIL NIL 'DISPLAY))
-                              [SETQ CANONICALWIDTH
-                               (FIXR (QUOTIENT (TIMES [STRINGWIDTH CANONICALTESTSTR
-                                                             (LIST (FONTPROP DISPLAYGFONT
-                                                                          'FAMILY)
-                                                                   (FONTPROP DISPLAYGFONT
-                                                                          'SIZE]
-                                                      (fetch
 (TEXT INITIALSCALE) of
 GTEXT))
-                                            (TIMES SCALE (DSPSCALE NIL VIEWER]
-                                                             (* ; "calculate the local font.")

-                              (SETQ LOCALFONT (SK.PICK.FONT
 CANONICALWIDTH CANONICALTESTSTR 
-                                                     DEVICE DISPLAYGFONT]
-                        [COND
-                           ((WINDOWP VIEWER)
-                            (WINDOWPROP VIEWER 'PICKFONTCACHE (CONS (CONS GFONT LOCALFONT)
-                                                                    VIEWERFONTCACHE)))
-                           ((STREAMP VIEWER)
-                            (STREAMPROP VIEWER 'PICKFONTCACHE (CONS (CONS GFONT LOCALFONT)
-                                                                    VIEWERFONTCACHE]
-                        (RETURN LOCALFONT])
+                (SETQ DISPLAYGFONT (FONTCREATE GFONT NIL NIL NIL 'DISPLAY))
+                [SETQ CANONICALWIDTH
+                 (FIXR (QUOTIENT (TIMES (STRINGWIDTH CANONICALTESTSTR
+                                               (if
 NIL
+                                                   then
 (create
 FONTSPEC using
 (FONTPROP DISPLAYGFONT
+                                                                                      'SPEC)
+                                                                               FSFACE _
+                                                                               (MAKEFONTFACE
+                                                                                'MEDIUM
+                                                                                'REGULAR
+                                                                                'REGULAR))
+                                                 else
 
+
+                                 (* ;; "Original code didn't use the face information when determining string width because, it said, that in some cases HELVETICA 10, the bold is smaller than the regular. ")

+
+                                                      DISPLAYGFONT))
+                                        (fetch
 (TEXT INITIALSCALE) of
 GTEXT))
+                              (TIMES SCALE (DSPSCALE NIL VIEWER]
+                                                             (* ; "calculate the local font.")

+                (SETQ LOCALFONT (SK.PICK.FONT
 CANONICALWIDTH CANONICALTESTSTR DEVICE DISPLAYGFONT]
+          [COND
+             ((WINDOWP VIEWER)
+              (WINDOWPROP VIEWER 'PICKFONTCACHE (CONS (CONS GFONT LOCALFONT)
+                                                      VIEWERFONTCACHE)))
+             ((STREAMP VIEWER)
+              (STREAMPROP VIEWER 'PICKFONTCACHE (CONS (CONS GFONT LOCALFONT)
+                                                      VIEWERFONTCACHE]
+          (RETURN LOCALFONT])
 
 (SK.NEXTSIZEFONT

-  [LAMBDA (WHICHDIR NOWFONT)
                                 (* rrb "14-Jul-86 13:43")

-          
-          (* returns the next sized font either SMALLER or LARGER that on of size FONT.)

+  [LAMBDA (WHICHDIR NOWFONT)
                                 (* ; "Edited  6-Nov-2025 22:52 by rmk")

+                                                             (* rrb "14-Jul-86 13:43")

 
-    (PROG [(NOWSIZE (FONTPROP NOWFONT 'HEIGHT))
-           (DECREASEFONTLST (SK.DECREASING.FONT.LIST
 (CAR NOWFONT)
-                                   'DISPLAY]
-          (RETURN (COND
-                     [(EQ WHICHDIR 'LARGER)
-                      (COND
-                         ((IGEQ NOWSIZE (FONTPROP (CAR DECREASEFONTLST)
-                                               'HEIGHT))     (* nothing larger)

-                          NIL)
-                         (T (for
 FONTTAIL on
 DECREASEFONTLST
-                               when
 [AND (CDR FONTTAIL)
-                                         (IGEQ NOWSIZE (FONTPROP (CADR FONTTAIL)
-                                                              'HEIGHT]
-                               do
 (RETURN (SK.FONTNAMELIST (CAR FONTTAIL]
-                     (T (for
 FONT in
 DECREASEFONTLST when
 (LESSP (FONTPROP FONT 'HEIGHT)
-                                                                 NOWSIZE)
-                           do
 (RETURN (SK.FONTNAMELIST FONT])
+    (* ;; "Returns the next sized font either SMALLER or LARGER that on of size FONT. This returns FONTSPEC, not font descriptor")

+
+    (* ;; "RMK 2025:  The original code tested HEIGHT, but SK.DECREASING.FONT.LIST orders according to SIZE.  Presumably correlated, but if they ever got out of whack, this would be wrong.  So changed to SIZE.")

+
+    (* ;; "Also, this returns a FONTSPEC, not the font descriptor.")

+
+    (LET [(NOWSIZE (FONTPROP NOWFONT 'SIZE))
+          (DECREASEFONTLST (SK.DECREASING.FONT.LIST
 (FONTPROP NOWFONT 'FAMILY)
+                                  'DISPLAY]
+         (COND
+            [(EQ WHICHDIR 'LARGER)
+             (CL:WHEN (ILESSP NOWSIZE (FONTPROP (CAR DECREASEFONTLST)
+                                             'SIZE))         (* ; "Otherwise, nothing larger")

+                 [for
 FONTTAIL on
 DECREASEFONTLST when
 [AND (CDR FONTTAIL)
+                                                            (IGEQ NOWSIZE (FONTPROP (CADR FONTTAIL)
+                                                                                 'SIZE]
+                    do
 (RETURN (FONTPROP (CAR FONTTAIL)
+                                      'SPEC])]
+            (T (for
 FONT in
 DECREASEFONTLST when
 (LESSP (FONTPROP FONT 'SIZE)
+                                                        NOWSIZE)
+                  do
 (RETURN (FONTPROP FONT 'SPEC])
 
 (SK.DECREASING.FONT.LIST

-  [LAMBDA (FAMILY DEVICETYPE)
                 (* ; 
-
                                                "Edited 12-Oct-92 12:39 by sybalsky:mv:envos")

+  [LAMBDA (FAMILY DEVICE)
                                    (* ; "Edited  6-Nov-2025 17:40 by rmk")


+                                                             (* ; "Edited  4-Nov-2025 15:34 by rmk")

+                                                             (* ; 
+
                                                        "Edited 12-Oct-92 12:39 by sybalsky:mv:envos")

 
-    (* ;; "returns a list of fonts of family FAMILY which work on device DEVICETYPE")

+    (* ;; "This is used to find the best font for FAMILY on DEVICE that will allow a string to fit in a box, or to find the next larger/smaller font while editing.   ")

 
-    [COND
-       ((NULL FAMILY)
-        (SETQ FAMILY 'MODERN]
+    (* ;; "RMK 2025: The original code anticipated the coercions of the PRESS/INTERPRESS/POSTSCRIPT devices, building in e.g. that HELVETICA maps to MODERN on INTERPRESS and not even looking to see if there are any INTERPRESS HELVETICA fonts available or if e.g. INTERPRESS TERMINAL would coerce to MODERN for other sizes.  ")

 
-    (* ;; "convert to families that exist on the known devices.")

+    (* ;; "That is, if FAMILY is TERMINAL for INTERPRESS, this would only return fonts for sizes 6 8 10 12 even though coercions to MODERN might give smaller and bigger sizes.")

 
-(* ;;; "NOTE: this is a very bad way to convert the family.  It HARDCODES in the conversions for PRESS and INTERPRESS  and does nothing for new device types.  I have added the conversion for POSTSCRIPT that does things a little cleaner, but it should really look at a property of the device (fontconversions or some such animal.)  --was 2/19/89")

+    (* ;; "This code looks up all of the possible coercions of the given family to get all possible coerceable sizes, then relies on the related coercions in FONTCREATE to produce FAMILY fonts possibly constructed from data in the files for some other font.  E.g. TERMINAL 14 will have the data from MODERN 14.")

 
-    (LET ((CONVERSION))
-         [COND
-            [(EQ DEVICETYPE 'PRESS)
-             (COND
-                ((EQ FAMILY 'MODERN)
-                 (SETQ FAMILY 'HELVETICA))
-                ((EQ FAMILY 'CLASSIC)
-                 (SETQ FAMILY 'TIMESROMAN))
-                ((EQ FAMILY 'TERMINAL)
-                 (SETQ FAMILY 'GACHA]
-            [(EQ DEVICETYPE 'INTERPRESS)
-             (COND
-                ((EQ FAMILY 'HELVETICA)
-                 (SETQ FAMILY 'MODERN))
-                ((EQ FAMILY 'TIMESROMAN)
-                 (SETQ FAMILY 'CLASSIC))
-                ((EQ FAMILY 'GACHA)
-                 (SETQ FAMILY 'TERMINAL]
-            ((EQ DEVICETYPE 'POSTSCRIPT)
-             (if
 (SETQ CONVERSION (ASSOC FAMILY POSTSCRIPT.FONT.ALIST))
-                 then
 
+    (* ;; "This is also device independent:  should work for HTML (whether or not HTML specifies any CHARCOERCIONS).")

 
-                       (* ;; 
-
                  "convert the family here for postscript as well as the other well known devices.")

+    (* ;; "Note that FONTSAVAILABLE caches its file lookups and FONTCREATE caches its fonts.")

 
-                       (SETQ FAMILY (CDR CONVERSION]
-         (for
 FONT in
 (SK.GUESS.FONTSAVAILABLE
 FAMILY DEVICETYPE)
-            collect
 (FONTCOPY FONT 'DEVICE DEVICETYPE])
+    (CL:UNLESS FAMILY
+        (SETQ FAMILY 'MODERN))
+    (LET ((FAMSPEC (create
 FONTSPEC
+                          FSFAMILY _ FAMILY
+                          FSSIZE _ '*
+                          FSDEVICE _ DEVICE)))
 
-(SK.GUESS.FONTSAVAILABLE

-  [LAMBDA (FAMILY HDCPYTYPE)
                                 (* rrb " 9-Oct-85 16:10")

-          
-          (* returns a list of all fonts of a FAMILY in decreasing order.)

+         (* ;; "Run through all sizes for all the fonts for FAMILY or any of its coercions on DEVICE.  This gives us all the possible sizes for FAMILY, we ask FONTCREATE to create a FAMILY font for each of those sizes.")

 
-    (PROG (FILEFONTS CACHE DISPLAYFONTSIZES)
-          (SETQ HDCPYTYPE (COND
-                             ((NULL HDCPYTYPE)
-                              (PRINTERTYPE))
-                             ((NLISTP HDCPYTYPE)
-                              HDCPYTYPE)
-                             (T HDCPYTYPE)))                 (* cache the file fonts.)

-          [COND
-             [[SETQ FILEFONTS (ASSOC HDCPYTYPE (CDR (ASSOC FAMILY \FONTSONFILE]
-          
-          (* note if a cache has been calculated. Use it even if it is NIL)

-          
-          (* \FONTSONFILE seems to group things such as CLASSICTHIN under CLASSIC so make 
-
          sure to remove anything that has the wrong family.)

-
-              (SETQ FILEFONTS (SUBSET (CDR FILEFONTS)
-                                     (FUNCTION (LAMBDA (X)
-                                                 (EQ (CAR X)
-                                                     FAMILY]
-             (T (RESETFORM (CURSOR WAITINGCURSOR)
-                       (SETQ FILEFONTS (FONTSAVAILABLE FAMILY '* '(MEDIUM REGULAR REGULAR) NIL 
-                                              HDCPYTYPE T))
-          
-          (* Since there is no way to determine the real sizes for PRESS fonts with size 
-
          of 0 {meaning the widths scale}, guess that they are available in 10)

-
-                       [COND
-                          [(EQ HDCPYTYPE 'PRESS)
-          
-          (* make sure to look for anything that has a display font.)

-
-                           (SETQ DISPLAYFONTSIZES (for
 FONT
-                                                     in
 (FONTSAVAILABLE FAMILY '*
-                                                               '(MEDIUM REGULAR REGULAR) NIL
-                                                               'DISPLAY) collect
 (CADR FONT)))
-                           (SETQ FILEFONTS
-                            (for
 FONT in
 FILEFONTS
-                               join
 (COND
-                                       [(EQ (CADR FONT)
-                                            0)
-                                        (for
 SIZE
-                                           in
 (UNION DISPLAYFONTSIZES
-                                                     '(36 30 24 18 14 12 10 8 6))
-                                           when
 (FONTCREATE (CAR FONT)
-                                                       SIZE NIL NIL 'DISPLAY T)
-                                           collect
 (CONS (CAR FONT)
-                                                         (CONS SIZE (CDDR FONT]
-                                       (T (CONS FONT]
-                          ((EQ HDCPYTYPE 'DISPLAY)
-          
-          (* patch around the bug in FONTSAVAILABLE.
-
          Remove after J release.)

-
-                           (SETQ FILEFONTS (SUBSET FILEFONTS (FUNCTION (LAMBDA (FONT)
-                                                                         (EQUAL (CADDR FONT)
-                                                                                '(MEDIUM REGULAR 
-                                                                                        REGULAR]
-                                                             (* remove duplicates and sort)

-                       [SETQ FILEFONTS (SORT (INTERSECTION FILEFONTS FILEFONTS)
-                                             (FUNCTION (LAMBDA (A B)
-                                                         (GREATERP (CADR A)
-                                                                (CADR B]
-                       (COND
-                          ((NULL (SETQ CACHE (ASSOC FAMILY \FONTSONFILE)))
-                           (SETQ \FONTSONFILE (CONS (LIST FAMILY (CONS HDCPYTYPE FILEFONTS))
-                                                    \FONTSONFILE)))
-                          (T (NCONC1 CACHE (CONS HDCPYTYPE FILEFONTS]
-          
-          (* reget the fonts in core since they may have changed since last time.)

-
-          (RETURN (SORT (UNION (FONTSAVAILABLE FAMILY '* NIL NIL HDCPYTYPE)
-                               FILEFONTS)
-                        (FUNCTION (LAMBDA (A B)
-                                    (COND
-                                       ((EQ (CADR A)
-                                            (CADR B))
-          
-          (* in case both TIMESROMAN and TIMESROMAND for example make it in.)

-
-                                        (ALPHORDER (CADR A)
-                                               (CADR B)))
-                                       (T (GREATERP (CADR A)
-                                                 (CADR B])
+         (for
 FS SIZES in
 (for
 FS in
 [CONS FAMSPEC (COERCEFONTSPEC FAMSPEC (FONTDEVICEPROP
+                                                                            DEVICE
+                                                                            'CHARCOERCIONS]
+                             join
 (FONTSAVAILABLE FS NIL NIL NIL NIL T))
+            do
 (pushnew
 SIZES (fetch
 (FONTSPEC FSSIZE) of
 FS))
+            finally
 (RETURN (for
 S in
 [SORT SIZES (FUNCTION (LAMBDA (S1 S2)
+                                                              (IGREATERP S1 S2]
+                               collect
 (FONTCREATE FAMILY S NIL NIL DEVICE])
 )
 
 (RPAQ? \KNOWN.SKETCH.FONTSIZES
 )
@@ -5753,37 +5599,28 @@ Click outside the window to stop.")
 (DEFINEQ
 
 (SK.SET.FONT

-  [LAMBDA (W NEWFONT)
                                        (* rrb " 2-Oct-85 14:55")

-          
-          (* sets the entire default font. Used when a sketch stream is created.
-
          or any of the defaults are changed. NEWFONT is a list of
-
          (FAMILY SIZE FACE))

+  [LAMBDA (W NEWFONT)
                                        (* ; "Edited  4-Nov-2025 13:06 by rmk")

+                                                             (* rrb " 2-Oct-85 14:55")

 
-    (COND
-       (NEWFONT (COND
-                   ((FONTCREATE NEWFONT NIL NIL NIL NIL T)
-          
-          (* clear the cache of looked up fonts. This provides the user a way of clearing 
-
          the cache that shouldn't happen too much and is documented.)

+    (* ;; "Sets the  default font.  Used when a sketch stream is created.  or any of the defaults are changed.  NEWFONT is a fontspec")

 
-                    (AND (FASSOC (CAR NEWFONT)
-                                \FONTSONFILE)
-                         (SETQ \FONTSONFILE (for
 BUCKET in
 \FONTSONFILE
-                                               when
 (NEQ (CAR BUCKET)
-                                                         (CAR NEWFONT)) collect
 BUCKET)))
-                    (replace
 (SKETCHCONTEXT SKETCHFONT) of
 (WINDOWPROP W 'SKETCHCONTEXT) with
 NEWFONT
-                           ))
-                   (T (STATUSPRINT W (CAR NEWFONT)
-                             " "
-                             (CADR NEWFONT)
-                             " "
-                             (SELECTQ (CAR (CADDR NEWFONT))
-                                 (BOLD 'BOLD)
-                                 "")
-                             (SELECTQ (CADR (CADDR NEWFONT))
-                                 (ITALIC 'ITALIC)
-                                 "")
-                             " not found"])
+    (CL:WHEN NEWFONT
+        (if
 (FONTCREATE NEWFONT NIL NIL NIL NIL T)
+            then
 
+                 (* ;; "Tests to make sure the font exists, but stores the fontspec.")

+
+                 (replace
 (SKETCHCONTEXT SKETCHFONT) of
 (WINDOWPROP W 'SKETCHCONTEXT) with
 NEWFONT)
+          else
 (STATUSPRINT W (fetch
 (FONTSPEC FSFAMILY) of
 NEWFONT)
+                      " "
+                      (fetch
 (FONTSPEC FSSIZE) of
 NEWFONT)
+                      " "
+                      (SELECTQ (fetch
 (FONTFACE WEIGHT) of
 (fetch
 (FONTSPEC FSFACE) of
 NEWFONT))
+                          (BOLD 'BOLD)
+                          "")
+                      (SELECTQ (fetch
 (FONTFACE SLOPE) of
 (fetch
 (FONTSPEC FSFACE) of
 NEWFONT))
+                          (ITALIC 'ITALIC)
+                          "")
+                      " not found")))])
 
 (SK.SET.TEXT.FONT

   [LAMBDA (W)
                                                (* rrb " 4-Oct-85 16:21")

@@ -5838,90 +5675,51 @@ Click outside the window to stop.")
                                                              of
 SKCONTEXT])
 
 (SK.READFONTSIZE

-  [LAMBDA (TITLE FONTFAMILY SKW)
                             (* rrb " 6-Nov-85 09:51")

-          
-          (* * gets a legal known font size from the user.)

-          
-          (* this should have MENUROWS _ 1 when title height bug in menu package gets 
-
          fixed.)

+  [LAMBDA (TITLE FONTFAMILY SKW)
                             (* ; "Edited  4-Nov-2025 20:12 by rmk")

+                                                             (* rrb " 6-Nov-85 09:51")

 
-    (PROG ((FONTSIZES (SK.COLLECT.FONT.SIZES
 FONTFAMILY))
-           NEWSIZE)
-          (COND
-             ((NULL FONTSIZES)
-              (GO MORE)))
-          (SETQ NEWSIZE (\CURSOR.IN.MIDDLE.MENU
 (create
 MENU
-                                                       TITLE _ (COND
-                                                                  (TITLE)
-                                                                  (FONTFAMILY (CONCAT "new " 
-                                                                                     FONTFAMILY 
-                                                                                     " size?"))
-                                                                  (T "New font size?"))
-                                                       ITEMS _ (CONS '(More 'MORE 
-                                                  "will look on font directories to find more sizes."
-                                                                            ) FONTSIZES)
-                                                       CENTERFLG _ T)))
-          (COND
-             ((NEQ NEWSIZE 'MORE)
-              (RETURN NEWSIZE)))
-      MORE
-                                                             (* do longer search of files)

-          (SETQ NEWSIZE (SK.COLLECT.FONT.SIZES
 FONTFAMILY T))
-          (COND
-             ((NULL NEWSIZE)                                 (* could not find any fonts of that 
-
                                                             family)

-              (RETURN NIL))
-             ((EQUAL NEWSIZE FONTSIZES)                      (* not new ones found)

-              (STATUSPRINT SKW "
-No more font sizes found.")))
-          (RETURN (MENU (create
 MENU
-                               TITLE _ (OR TITLE "New font size?")
-                               ITEMS _ NEWSIZE
-                               CENTERFLG _ T])
+    (* ;; "Gets a legal known font size from the user.")

+                                                             (* ; "this should have MENUROWS _ 1 when title height bug in menu package gets fixed. RMK 2025:  Is this still an issue?")

+    (CL:UNLESS TITLE
+        (SETQ TITLE (CONCAT "New " (OR FONTFAMILY "font")
+                           " size?")))
+    (LET ((FONTSIZES (SK.COLLECT.FONT.SIZES
 FONTFAMILY))
+          (NEWSIZE 'MORE))
+         (CL:WHEN FONTSIZES
+             (SETQ NEWSIZE (\CURSOR.IN.MIDDLE.MENU
 (create
 MENU
+                                                          TITLE _ TITLE
+                                                          ITEMS _ (NCONC1 FONTSIZES
+                                                                         '(More 'MORE 
+                                                   "Look on font-file directories to find more sizes"
+                                                                                ))
+                                                          CENTERFLG _ T))))
+         (CL:WHEN (EQ NEWSIZE 'MORE)                         (* ; "do longer search of files")

+             (SETQ FONTSIZES (LDIFFERENCE (SK.COLLECT.FONT.SIZES
 FONTFAMILY 'ONLY)
+                                    FONTSIZES))
+             (SETQ NEWSIZE
+              (if
 FONTSIZES
+                  then
 (MENU (create
 MENU
+                                    TITLE _ TITLE
+                                    ITEMS _ FONTSIZES
+                                    CENTERFLG _ T))
+                else
 (STATUSPRINT SKW "
+No more font sizes found.")
+                     NIL)))
+         NEWSIZE])
 
 (SK.COLLECT.FONT.SIZES

-  [LAMBDA (FAMILY FILESTOOFLG)
                               (* rrb " 2-Oct-85 10:43")

-          
-          (* collects all of the sizes that are known.
-
          If FAMILY is given, gets just those sizes.)

+  [LAMBDA (FAMILY FILESTOOFLG)
                               (* ; "Edited  4-Nov-2025 20:02 by rmk")

+                                                             (* rrb " 2-Oct-85 10:43")

 
-    (PROG (INCORESIZES FILESIZES)
-          [COND
-             [FAMILY (for
 TYPEBUCKET in
 (CDR (FASSOC FAMILY \FONTSONFILE))
-                        do
 (for
 FFONT in
 (CDR TYPEBUCKET) do
 (OR (MEMB (CADR FFONT)
-                                                                       INCORESIZES)
-                                                                 (SETQ INCORESIZES
-                                                                  (CONS (CADR FFONT)
-                                                                        INCORESIZES]
-             (T                                              (* look at all fonts)

-                (for
 FAMILYBUCKET in
 \FONTSONFILE
-                   do
 (for
 TYPEBUCKET in
 (CDR FAMILYBUCKET)
-                         do
 (for
 FFONT in
 (CDR TYPEBUCKET) do
 (OR (MEMB (CADR FFONT)
-                                                                        INCORESIZES)
-                                                                  (SETQ INCORESIZES
-                                                                   (CONS (CADR FFONT)
-                                                                         INCORESIZES]
-          (RETURN (SORT (UNION INCORESIZES
-                               (COND
-                                  [FILESTOOFLG
-          
-          (* wants those on files too, Flip the cursor to note wait.)

+    (* ;; "Collects all of the sizes that are known.  If FAMILY is given, gets just those sizes.")

 
-                                   (RESETFORM (CURSOR WAITINGCURSOR)
-                                          (bind
 SIZES for
 FONT
-                                             in
 (FONTSAVAILABLE (OR FAMILY '*)
-                                                       '* NIL NIL 'DISPLAY T)
-                                             do
 (OR (MEMB (FONTPROP FONT 'SIZE)
-                                                          SIZES)
-                                                    (SETQ SIZES (CONS (FONTPROP FONT 'SIZE)
-                                                                      SIZES)))
-                                             finally
 (RETURN SIZES]
-                                  (T (bind
 SIZES for
 FONT in
 (FONTSAVAILABLE (OR FAMILY '*)
-                                                                    '* NIL NIL 'DISPLAY FILESTOOFLG)
-                                        do
 (OR (MEMB (FONTPROP FONT 'SIZE)
-                                                     SIZES)
-                                               (SETQ SIZES (CONS (FONTPROP FONT 'SIZE)
-                                                                 SIZES))) finally
 (RETURN SIZES])
+    (* ;; "RMK:  Original code seemed confused.  The \FONTSONFILE variable (set originally only by SK.GUESS.FONTSAVAILBLE in the call from SK.DECREASING.FONT.LIST) maintained a cache just of the fonts that had already been looked up for particular families and particular devices.  But then it called FONTSAVAILABLE only for the DISPLAY device.")

+
+    (for
 FS SIZES in
 (FONTSAVAILABLE (OR FAMILY '*)
+                            '* NIL NIL 'DISPLAY FILESTOOFLG) do
 (pushnew
 SIZES (fetch
 (FONTSPEC
+                                                                                       FSSIZE)
+                                                                                  of
 FS))
+       finally
 (RETURN (SORT SIZES])
 
 (SK.SET.TEXT.VERT.ALIGN

   [LAMBDA (SKW NEWALIGN)
                                     (* rrb " 6-Nov-85 09:52")

@@ -6058,8 +5856,6 @@ No more font sizes found.")))
 
 (RPAQ? SK.DEFAULT.TEXT.ALIGNMENT
 '(CENTER BASELINE))
 
-(RPAQ? \FONTSONFILE
 NIL)
-
 (ADDTOVAR SK.HORIZONTAL.STYLES
 LEFT RIGHT CENTER)
 
 (ADDTOVAR SK.VERTICAL.STYLES
 TOP CENTER BASELINE BOTTOM)
@@ -9280,137 +9076,136 @@ No more font sizes found.")))
            (fetch
 (REGION TOP) of
 REGION])
 )
 (DECLARE%: DONTCOPY
-  (FILEMAP (NIL (14510 24920 (INIT.SKETCH.ELEMENTS 14520 . 22083) (CREATE.SKETCH.ELEMENT.TYPE 22085 . 
-23607) (SKETCH.ELEMENT.TYPEP 23609 . 23997) (SKETCH.ELEMENT.NAMEP 23999 . 24262) (
-\CURSOR.IN.MIDDLE.MENU 24264 . 24918)) (24961 25638 (SKETCHINCOLORP 24971 . 25291) (READ.COLOR.CHANGE 
-25293 . 25636)) (26147 28926 (SK.CREATE.DEFAULT.FILLING 26157 . 26458) (SKFILLINGP 26460 . 27093) (
-SK.INSURE.FILLING 27095 . 28523) (SK.INSURE.COLOR 28525 . 28924)) (28927 34537 (SK.TRANSLATE.MODE 
-28937 . 29719) (SK.CHANGE.FILLING.MODE 29721 . 33304) (READ.FILLING.MODE 33306 . 34535)) (34538 65212 
-(SKETCH.CREATE.CIRCLE 34548 . 35360) (CIRCLE.EXPANDFN 35362 . 38734) (CIRCLE.DRAWFN 38736 . 41737) (
-\CIRCLE.DRAWFN1 41739 . 44334) (CIRCLE.INPUTFN 44336 . 46185) (SK.UPDATE.CIRCLE.AFTER.CHANGE 46187 . 
-46546) (SK.READ.CIRCLE.POINT 46548 . 47019) (SK.SHOW.CIRCLE 47021 . 47667) (CIRCLE.INSIDEFN 47669 . 
-47934) (CIRCLE.REGIONFN 47936 . 49617) (CIRCLE.GLOBALREGIONFN 49619 . 51137) (CIRCLE.TRANSLATE 51139
- . 53000) (CIRCLE.READCHANGEFN 53002 . 57618) (CIRCLE.TRANSFORMFN 57620 . 59473) (CIRCLE.TRANSLATEPTS 
-59475 . 61089) (SK.CIRCLE.CREATE 61091 . 61934) (SET.CIRCLE.SCALE 61936 . 62702) (SK.BRUSH.READCHANGE 
-62704 . 65210)) (65213 65942 (SK.INSURE.BRUSH 65223 . 65617) (SK.INSURE.DASHING 65619 . 65940)) (67156
- 96650 (SKETCH.CREATE.ELLIPSE 67166 . 67765) (ELLIPSE.EXPANDFN 67767 . 71379) (ELLIPSE.DRAWFN 71381 . 
-75558) (ELLIPSE.INPUTFN 75560 . 78000) (SK.READ.ELLIPSE.MAJOR.PT 78002 . 78581) (
-SK.SHOW.ELLIPSE.MAJOR.RADIUS 78583 . 79338) (SK.READ.ELLIPSE.MINOR.PT 79340 . 80033) (
-SK.SHOW.ELLIPSE.MINOR.RADIUS 80035 . 80867) (ELLIPSE.INSIDEFN 80869 . 81139) (ELLIPSE.CREATE 81141 . 
-82516) (SK.UPDATE.ELLIPSE.AFTER.CHANGE 82518 . 82886) (ELLIPSE.REGIONFN 82888 . 85088) (
-ELLIPSE.GLOBALREGIONFN 85090 . 86903) (ELLIPSE.TRANSLATEFN 86905 . 89451) (ELLIPSE.TRANSFORMFN 89453
- . 90730) (ELLIPSE.TRANSLATEPTS 90732 . 92773) (MARK.SPOT 92775 . 94026) (DISTANCEBETWEEN 94028 . 
-94623) (SK.DISTANCE.TO 94625 . 95010) (SQUARE 95012 . 95054) (COMPUTE.ELLIPSE.ORIENTATION 95056 . 
-95775) (SK.COMPUTE.ELLIPSE.MINOR.RADIUS.PT 95777 . 96648)) (97763 138819 (SKETCH.CREATE.OPEN.CURVE 
-97773 . 98326) (OPENCURVE.INPUTFN 98328 . 99196) (SK.CURVE.CREATE 99198 . 100943) (MAXXEXTENT 100945
- . 101804) (MAXYEXTENT 101806 . 102666) (KNOT.SET.SCALE.FIELD 102668 . 103470) (OPENCURVE.DRAWFN 
-103472 . 104603) (OPENCURVE.EXPANDFN 104605 . 107920) (OPENCURVE.READCHANGEFN 107922 . 111124) (
-OPENCURVE.TRANSFORMFN 111126 . 113624) (OPENCURVE.TRANSLATEFN 113626 . 114048) (
-OPENCURVE.TRANSLATEPTSFN 114050 . 115431) (SKETCH.CREATE.CLOSED.CURVE 115433 . 115939) (
-CLOSEDCURVE.DRAWFN 115941 . 116725) (CLOSEDCURVE.EXPANDFN 116727 . 119840) (CLOSEDCURVE.REGIONFN 
-119842 . 120639) (CLOSEDCURVE.GLOBALREGIONFN 120641 . 122074) (READ.LIST.OF.POINTS 122076 . 124055) (
-CLOSEDCURVE.INPUTFN 124057 . 124702) (CLOSEDCURVE.READCHANGEFN 124704 . 127599) (
-CLOSEDCURVE.TRANSFORMFN 127601 . 129401) (CLOSEDCURVE.TRANSLATEPTSFN 129403 . 130748) (INVISIBLEPARTP 
-130750 . 131103) (SHOWSKETCHPOINT 131105 . 131410) (SHOWSKETCHXY 131412 . 131930) (KNOTS.REGIONFN 
-131932 . 132833) (OPENWIRE.GLOBALREGIONFN 132835 . 133699) (CURVE.REGIONFN 133701 . 134642) (
-OPENCURVE.GLOBALREGIONFN 134644 . 136051) (KNOTS.TRANSLATEFN 136053 . 137096) (REGION.CONTAINING.PTS 
-137098 . 138817)) (138820 161096 (CHANGE.ELTS.BRUSH.SIZE 138830 . 139440) (CHANGE.ELTS.BRUSH 139442 . 
-139959) (CHANGE.ELTS.BRUSH.SHAPE 139961 . 140362) (SK.CHANGE.BRUSH.SHAPE 140364 . 143876) (
-SK.CHANGE.BRUSH.COLOR 143878 . 148324) (SK.CHANGE.BRUSH.SIZE 148326 . 153284) (SK.CHANGE.ANGLE 153286
- . 156266) (SK.CHANGE.ARC.DIRECTION 156268 . 158647) (SK.SET.DEFAULT.BRUSH.SIZE 158649 . 159348) (
-READSIZECHANGE 159350 . 161094)) (161097 162716 (SK.CHANGE.ELEMENT.KNOTS 161107 . 162714)) (162717 
-163364 (SK.INSURE.POINT.LIST 162727 . 163180) (SK.INSURE.POSITION 163182 . 163362)) (164732 197055 (
-SKETCH.CREATE.WIRE 164742 . 165232) (CLOSEDWIRE.EXPANDFN 165234 . 167922) (KNOTS.INSIDEFN 167924 . 
-168645) (OPEN.WIRE.DRAWFN 168647 . 169239) (WIRE.EXPANDFN 169241 . 172488) (
-SK.UPDATE.WIRE.ELT.AFTER.CHANGE 172490 . 173011) (OPENWIRE.READCHANGEFN 173013 . 175506) (
-OPENWIRE.TRANSFORMFN 175508 . 177631) (OPENWIRE.TRANSLATEFN 177633 . 178057) (OPENWIRE.TRANSLATEPTSFN 
-178059 . 179338) (WIRE.INPUTFN 179340 . 180971) (SK.READ.WIRE.POINTS 180973 . 181504) (
-SK.READ.POINTS.WITH.FEEDBACK 181506 . 184273) (OPENWIRE.FEEDBACKFN 184275 . 185029) (
-CLOSEDWIRE.FEEDBACKFN 185031 . 186387) (CLOSEDWIRE.REGIONFN 186389 . 187374) (
-CLOSEDWIRE.GLOBALREGIONFN 187376 . 188428) (SK.WIRE.CREATE 188430 . 190193) (WIRE.ADD.POINT.TO.END 
-190195 . 191111) (READ.ARROW.CHANGE 191113 . 196589) (CHANGE.ELTS.ARROWHEADS 196591 . 197053)) (197056
- 208062 (SKETCH.CREATE.CLOSED.WIRE 197066 . 197627) (CLOSED.WIRE.INPUTFN 197629 . 197984) (
-CLOSED.WIRE.DRAWFN 197986 . 200031) (CLOSEDWIRE.READCHANGEFN 200033 . 204938) (CLOSEDWIRE.TRANSFORMFN 
-204940 . 206734) (CLOSEDWIRE.TRANSLATEPTSFN 206736 . 208060)) (208063 260769 (SK.EXPAND.ARROWHEADS 
-208073 . 208423) (SK.COMPUTE.ARC.ARROWHEAD.POINTS 208425 . 209806) (ARC.ARROWHEAD.POINTS 209808 . 
-211031) (SET.ARC.ARROWHEAD.POINTS 211033 . 212014) (SET.OPENCURVE.ARROWHEAD.POINTS 212016 . 212917) (
-SK.COMPUTE.CURVE.ARROWHEAD.POINTS 212919 . 214189) (SET.WIRE.ARROWHEAD.POINTS 214191 . 214944) (
-SK.COMPUTE.WIRE.ARROWHEAD.POINTS 214946 . 216211) (SK.EXPAND.ARROWHEAD 216213 . 217396) (CHANGED.ARROW
- 217398 . 220570) (SK.CHANGE.ARROWHEAD 220572 . 221025) (SK.CHANGE.ARROWHEAD1 221027 . 226282) (
-SK.CREATE.ARROWHEAD 226284 . 226804) (SK.ARROWHEAD.CREATE 226806 . 228380) (SK.ARROWHEAD.END.TEST 
-228382 . 229306) (READ.ARROWHEAD.END 229308 . 231333) (ARROW.HEAD.POSITIONS 231335 . 233175) (
-ARROWHEAD.POINTS.LIST 233177 . 237149) (CURVE.ARROWHEAD.POINTS 237151 . 238014) (LEFT.MOST.IS.BEGINP 
-238016 . 238897) (WIRE.ARROWHEAD.POINTS 238899 . 240425) (DRAWARROWHEADS 240427 . 242797) (
-\SK.DRAW.TRIANGLE.ARROWHEAD 242799 . 244459) (\SK.ENDPT.OF.ARROW 244461 . 246718) (
-\SK.ADJUST.FOR.ARROWHEADS 246720 . 249225) (SK.SET.ARROWHEAD.LENGTH 249227 . 250371) (
-SK.SET.ARROWHEAD.ANGLE 250373 . 251469) (SK.SET.ARROWHEAD.TYPE 251471 . 254760) (SK.SET.LINE.ARROWHEAD
- 254762 . 257175) (SK.UPDATE.ARROWHEAD.FORMAT 257177 . 259287) (SK.SET.LINE.LENGTH.MODE 259289 . 
-260767)) (260770 262571 (SK.INSURE.ARROWHEADS 260780 . 261962) (SK.ARROWHEADP 261964 . 262569)) (
-265368 327694 (SKETCH.CREATE.TEXT 265378 . 265892) (TEXT.CHANGEFN 265894 . 266286) (TEXT.READCHANGEFN 
-266288 . 274359) (\SK.READ.FONT.SIZE1 274361 . 276257) (SK.TEXT.ELT.WITH.SAME.FIELDS 276259 . 277899) 
-(SK.READFONTFAMILY 277901 . 279447) (CLOSE.PROMPT.WINDOW 279449 . 279873) (TEXT.DRAWFN 279875 . 280596
-) (TEXT.DRAWFN1 280598 . 284100) (TEXT.INSIDEFN 284102 . 284491) (TEXT.EXPANDFN 284493 . 286618) (
-SK.TEXT.LINE.REGIONS 286620 . 288494) (TEXT.UPDATE.GLOBAL.REGIONS 288496 . 289728) (REL.MOVE.REGION 
-289730 . 290267) (LTEXT.LINE.REGIONS 290269 . 293687) (TEXT.INPUTFN 293689 . 294199) (READ.TEXT 294201
- . 294949) (TEXT.POSITION.AND.CREATE 294951 . 297262) (CREATE.TEXT.ELEMENT 297264 . 298082) (
-SK.UPDATE.TEXT.AFTER.CHANGE 298084 . 298486) (SK.TEXT.FROM.TEXTBOX 298488 . 302294) (
-TEXT.SET.GLOBAL.REGIONS 302296 . 303589) (TEXT.REGIONFN 303591 . 304361) (TEXT.GLOBALREGIONFN 304363
- . 305051) (TEXT.TRANSLATEFN 305053 . 306368) (TEXT.TRANSFORMFN 306370 . 307493) (TEXT.TRANSLATEPTSFN 
-307495 . 308012) (TEXT.UPDATEFN 308014 . 312670) (SK.CHANGE.TEXT 312672 . 325760) (TEXT.SET.SCALES 
-325762 . 326730) (BREAK.AT.CARRIAGE.RETURNS 326732 . 327692)) (327695 346219 (ADD.KNOWN.SKETCH.FONT 
-327705 . 328696) (SK.PICK.FONT 328698 . 334230) (SK.CHOOSE.TEXT.FONT 334232 . 338180) (SK.NEXTSIZEFONT
- 338182 . 339449) (SK.DECREASING.FONT.LIST 339451 . 341324) (SK.GUESS.FONTSAVAILABLE 341326 . 346217))
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 STOP
diff --git a/library/sketch/SKETCH-ELEMENTS.LCOM b/library/sketch/SKETCH-ELEMENTS.LCOM
index 14b7a802f6358ac0e423a982a87e0a45e3c99341..0f9dd78a63733c836d7b1b84fd843c09c45ff503 100644
GIT binary patch
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z(iH6EwcW~o%=~$QO*sFxTZuX^O)2}G+eeg9^xie1-0eI$qQubt@(8B<U_{C8!wJRT
zT1`v1Nv9O|22N;HnU9F$yA^hKfb;wVY|MFbRGEpO*iL_V1O|z}aGI-f=hacA9Ny@+
hswljm`^w?#m9Yck^_p?d-J68LQB}T@o>E>M{9p1b&qn|N

diff --git a/library/sketch/SKETCH.LCOM b/library/sketch/SKETCH.LCOM
index 841eab4c0b47a1633cf46b55569033f718d568b9..81c0d2b7f4bd5469a2bfb9d0163d909fcf9436ba 100644
GIT binary patch
delta 2399
zcmai0U2Gf25#|k}G`=RbWK-0SZFxkI)Ey<Bc>Iw_%5{7skK&0(9>qIKrs@Lzkz*;2
zEmd~i28AJ~eF_q!bq>w~eJB$2Auk0gSWpENPV|x#=!1(sv<=!iiThF@Fk&D@;Wo%i
z=Z;ds3MfJlyR*Bq-_Cq9yK|p?y6@G`_Wg9umxx8H%h#jvSUiPtEKC2?#H~xgHM6W*
z`O=A2Cr!$-h<sp=a%>_S9}nQU)eGmBFRv`UaA5&2{9tAEYAB11T0ybYXlpyF1<l%(
zm#$!-*wA%s2a_ZzfD31@5kl*fwKkjRm_#Zd@<LJ5)qGtg-~#To#Wg&DKb)(m1zm04
zIR3)Yxz)3)FYb8I<_IP;iFhJ~S=Xvu6IU-^LOz=>Db*>}j9LZ?v&vfC#Fp`Sqhg9E
z6szX{cS^);t**{$M#GFceq#XBZM4R-awaRs1IT~9c`@>{RyUaU7z}QF&K>PJGwAVn
zxMgZQCwZs6wb*&l=@;Gh<kODa=@Ak!tSR}j!%<bKs1!^zt$NKc2{4|-oKa|^oW@zT
zZfZuACNW8760I9&`|cmG?}+brTma6)*%<EjxzIlUc730N?v8l-&BzHZZGRl;9Y`jz
zXjCn-vxbS5+=>gqj%V1d?{J5F<1x(ZbyBI+EKFq3tf_f>azy+Foh-{JY&>|rgWFgc
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z|2Q+hm6_)z?ymiB24)Ls;uTY9<%?J&*LA0hqdStZh#JbM7mE56Npvi+XwvNXP7>^n
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zy=gi~v?%gzH`tzeCDc)KNV1Q<et1nrQ_E%}b=6d@qEWAy5#lZ0&Kt3l=fK0c+$^|$
z^}BK_uN*qIXZp`WE7|Jn{spd!^ORi0?N)aPyqgafDa%u7*Gwk}n4*Xo=aoW{atsp_
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z0;JfR0`${HZ1~vk1sG<J1qhI8uLx0Q31r1-5f0PD_eBudTOuS#dF(em?4byKtRn)W
zv?fOg_e=ytTD$RHFMBHjeRkmeKK93mLl66emh4~M>tT@*2-Em%2?p5m2q+}4kAUC4
zGj)*tWdtS<@Uxmar`DxhBToew+0ZBy3G~qies*&drbvA7H^065OfP#p3S&<bIg(N+
zxP;hU-}1AmC}c?KrFtLxSrkqZ{$HaIdP8!LQY1KRk3BrXUX&o>;|r?pTpcTKRP$8f
zA~=a`OM)`(Kk~0$`w#ydV3{$99ODDeUAc<SEwAF`<?BmVF5<OCYOhLxR#{{}8Uxi!
zmavb<z`yli4F27(J5|%EqhFTMowWR#I_e<0Pj4&eQKM#3Mkv=H2`I2*Wr&eSMwvo$
zqwF}k_3JV`=GZd^q&Z|O1_Yl(dgcY*k>gA(Q!4$=fc>=V0|TU;ZxCsxqKNcseO0&*
w9qzdwTRk=C4))b+%FImrdq#Th#}PYIh9m4h(-7PeufZ=k_xujNs_FcH0o{XJ5&!@I

delta 2222
zcmbVNZD<>H81FrHYH!P0YumJSx__@}dza>}xxB1vT59uhX|pDGNiJy@UxsOxwWVEK
z(<mDv5&Sx|+kt<W$i@cZ3&^BsCk!_bM8v`Tq8}88qD+N}MbHmr;&aKm)vnB!FURx0
z|MPo(&)fa(*lNw{^_r#e2I3V%`JCu-y4=L+^m#l!_uk_(w$kEEzL=XD)JK(6a760&
z3WVi|=eDoQ?Q`$($xe<;6!N+G!wb{1`GX`km7SZ+FLwCI+<b9rdTx?T&k-)1jz-Bw
zup~(wIhZXXV#}yrt|YL0I1*KYNyVR1LWH|BPub0p=f-17D5_+hADEq<C}ayq2RG+U
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z4%1(4V5KK*Fo;}N+p*Hus!y%F)B*P}53aX<!`SIkCpgj5tek$)34ulyd#OZIx)jJr
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zbPt4$b6=YGANRnpapo&DjW(^B4mhD_eg7jVC5FyNoS@S0nwVzvzUl-&ZIht`-K8Iz
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zqsBMCnW3{T7%4ZEF1w%+Uwq;Mr5;1av@yl}7GsK<(h0k=+YNuVZZmgEr{Aj3PG3-A
zH~ODa!AY;EAfkOkg}#+u4Sr`z#d(sOFQ9N2$)WiI$&!g@%2HjN%9BH=<YXb6o5@b*
zNpUJ$B!{zwnMD%S{2|oGIEr@JCA)Z2?hkU9dYtfSHRex_`t^#qh6u|i(i+NVWed@#
za>OJ{iuoyR_Wzr^xL({w+}1F5BaNuVQNeFhZ3&s!M1@oNM-0D-Ca`Z4q@oTny)s7X
zNI)O3gf1n(wyoSB({$k+-c)fVe@wtm`bPq!di=)A|Ja-Qh}yT3OhTh=<)dfeG*h~3
nmo}xq{=c5y4OYV6{}w&H8^lDIi~b*z)9&afi%LrKN1*F3#XC^x

diff --git a/library/tedit/TEDIT-COMMAND b/library/tedit/TEDIT-COMMAND
index 3211d03f..96aa3adf 100644
--- a/library/tedit/TEDIT-COMMAND
+++ b/library/tedit/TEDIT-COMMAND
@@ -1,14 +1,12 @@
 (DEFINE-FILE-INFO PACKAGE "INTERLISP" READTABLE "INTERLISP" BASE 10)
 
-
(FILECREATED "17-Jul-2025 00:24:49" 
-{DSK}<Users>kaplan>Local>medley3.5>working-medley>library>tedit>TEDIT-COMMAND.;165
 19015  
+
(FILECREATED " 8-Nov-2025 10:03:19" {WMEDLEY}<library>TEDIT>TEDIT-COMMAND.;166
 19030  
 
       :EDIT-BY rmk
 
-      :CHANGES-TO (FNS \TEDIT.COMMAND.RESET.SETUP)
+      :CHANGES-TO (FNS \TEDIT.COMMAND.FUNCTION?)
 
-      :PREVIOUS-DATE "23-Mar-2025 15:27:20" 
-{DSK}<Users>kaplan>Local>medley3.5>working-medley>library>tedit>TEDIT-COMMAND.;163)
+      :PREVIOUS-DATE "17-Jul-2025 00:24:49" {WMEDLEY}<library>TEDIT>TEDIT-COMMAND.;165)
 
 
 (PRETTYCOMPRINT TEDIT-COMMANDCOMS)
@@ -137,7 +135,8 @@
                (FSETTOBJ TEXTOBJ EDITOPACTIVE NIL)))])
 
 (\TEDIT.COMMAND.FUNCTION?

-  [LAMBDA (TSTREAM CHARCODE)
                                 (* ; "Edited 23-Mar-2025 15:27 by rmk")

+  [LAMBDA (TSTREAM CHARCODE)
                                 (* ; "Edited  8-Nov-2025 10:00 by rmk")


+                                                             (* ; "Edited 23-Mar-2025 15:27 by rmk")

     (DECLARE
 (SPECVARS TSTREAM CHARCODE))
 
     (* ;; "If CHARCODE is a function in TSTREAM's read table, execute the function.")

@@ -145,7 +144,7 @@
     (LET ((TEXTOBJ (GETTSTR TSTREAM TEXTOBJ))
           FN)
          (DECLARE
 (SPECVARS TEXTOBJ))
-         (CL:WHEN [AND (EQ (\TEDIT.TTC FUNCTIONCALL)
+         (CL:WHEN [AND (EQ (\TEDIT.TTC FN)
                            (\SYNCODE (fetch
 READSA of
 (FGETTOBJ TEXTOBJ TXTRTBL))
                                   CHARCODE))
                        (SETQ FN (CAR (fetch
 MACROFN of
 (GETHASH CHARCODE (fetch
 READMACRODEFS
@@ -303,7 +302,7 @@
 (GLOBALVARS || TEDIT.INTERRUPTS)
 )
 (DECLARE%: DONTCOPY
-  (FILEMAP (NIL (2709 10263 (\TEDIT.COMMAND.LOOP 2719 . 9060) (\TEDIT.COMMAND.FUNCTION? 9062 . 10261)) (
-10264 18725 (\TEDIT.INTERRUPT.SETUP 10274 . 11921) (\TEDIT.MARKACTIVE 11923 . 12252) (
-\TEDIT.MARKINACTIVE 12254 . 12470) (\TEDIT.COMMAND.RESET.SETUP 12472 . 18723)))))
+  (FILEMAP (NIL (2625 10278 (\TEDIT.COMMAND.LOOP 2635 . 8976) (\TEDIT.COMMAND.FUNCTION? 8978 . 10276)) (
+10279 18740 (\TEDIT.INTERRUPT.SETUP 10289 . 11936) (\TEDIT.MARKACTIVE 11938 . 12267) (
+\TEDIT.MARKINACTIVE 12269 . 12485) (\TEDIT.COMMAND.RESET.SETUP 12487 . 18738)))))
 STOP
diff --git a/library/tedit/TEDIT-COMMAND.LCOM b/library/tedit/TEDIT-COMMAND.LCOM
index 583d13aacfe7eef7a08e0c33ab3d180cbdca7475..cf5bdabb62dd3e4b5570067c9108a68357f4cb21 100644
GIT binary patch
delta 373
zcmeyN^Gka|c)fy!u3vtcu91O}se++_m4UI9p{0_7hEj5VZb4>FYKlUBo`RA>b-1sq
zi;rt$txZm5Qc+@2rCo@ti)RRg)OGgv^>y@f(X%!*Gt*SyQZh2r^-nH=m}y{XWoQUC
zGpQ&QZfI&nK~b@)l|szK|9q3BSh?ymfws7X`uHdy>($fKQ&LDtECIR#o1sRQN}606
zZk|4_&Oxq@KnDRGiq$uSUC#$|zJj5pfw95l^NjkEZlQk8A)fwz_L>S-0YR=|p8lc1
fx-LL_CdV;KX%ZVCrjzs8MJM|+b8TMCbX6DtR%>VC

delta 497
zcmeyR{X=I$c)g*yu2*S}u91O}se*xlm63^+iKUW)hEj5VZb4>FYKlUBo`RABSG7y9
zcdbomacWVqU3OwYPGX*&PkwS@j$LkQN=|B}v7V`2d45rLW?s53M8qy9GpQ)CsM4+^
zH6^peF2vQvGep<f-`CgC&qdGL(9Bd*flJBIR0v_a5zuyHD-)xM`&B3V@bc7W0xfn6
z_3=?KG({-V)6-K@NJ#`53f7L0fao?gQqttoaP#zWbq;cM1X`+~gx!OLJ!DR@j}#0o
z4Gc{uS2OAZ-OpXGsbCcl<QnGb9~!Ld0(6Ull992lZ(<Q7tPM@AjLfZ!3}_Ly#+qC)
XA(Owd2~O@|<C=V*g>ADo(|KV4_SKa$

diff --git a/library/tedit/TEDIT-FNKEYS b/library/tedit/TEDIT-FNKEYS
index d9da38e1..850b43ba 100644
--- a/library/tedit/TEDIT-FNKEYS
+++ b/library/tedit/TEDIT-FNKEYS
@@ -1,18 +1,18 @@
 (DEFINE-FILE-INFO PACKAGE "INTERLISP" READTABLE "INTERLISP" BASE 10)
 
-
(FILECREATED " 7-Aug-2025 15:00:51" {WMEDLEY}<library>TEDIT>TEDIT-FNKEYS.;294
 106161 
+
(FILECREATED "24-Nov-2025 08:40:56" {WMEDLEY}<library>TEDIT>TEDIT-FNKEYS.;317
 109076 
 
       :EDIT-BY rmk
 
-      :CHANGES-TO (VARS TEDIT-FNKEYSCOMS)
+      :CHANGES-TO (VARS TEDIT.BASIC.CHARBINDINGS)
 
-      :PREVIOUS-DATE " 6-Aug-2025 08:59:59" {WMEDLEY}<library>TEDIT>TEDIT-FNKEYS.;293)
+      :PREVIOUS-DATE "24-Nov-2025 00:38:18" {WMEDLEY}<library>TEDIT>TEDIT-FNKEYS.;316)
 
 
 (PRETTYCOMPRINT TEDIT-FNKEYSCOMS)
 
 (RPAQQ TEDIT-FNKEYSCOMS

-       ((COMS                                                (* ; 
+       [(COMS                                                (* ; 
 
                                                             "Public functions (binding data  below)")

               (FNS TEDIT.INSTALL.CHARBINDINGS TEDIT.CLEAR.CHARBINDINGS TEDIT.GET.CHARACTION 
                    TEDIT.GET.CHARBINDING TEDIT.GET.ALL.CHARBINDINGS TEDIT.CHARBINDINGS.INVERT 
@@ -30,7 +30,7 @@
         (FNS \TEDIT.ONECHAR.BACKWARD \TEDIT.ONECHAR.FORWARD \TEDIT.ONELINE.UP \TEDIT.ONELINE.DOWN 
              \TEDIT.ONELINE.MOVE \TEDIT.ONEWORD.BACKWARD \TEDIT.ONEWORD.FORWARD \TEDIT.LINE.BEGIN 
              \TEDIT.LINE.END \TEDIT.DOCUMENT.BEGIN \TEDIT.DOCUMENT.END)
-        (FNS \TEDIT.LINEDELETE.FORWARD \TEDIT.LINEDELETE.BACKWARD)
+        (FNS \TEDIT.LINEDELETE.FORWARD \TEDIT.LINEDELETE.BACKWARD \TEDIT.LINEDELETE)
         (FNS \TEDIT.KEY.NEST)
         (FNS \TEDIT.KEY.WRAP)
                                                              (* ; "From TEDITDORADOKEYS")

@@ -47,21 +47,39 @@
               (FNS \TEDIT.READTABLE \TEDIT.WORDBOUND.READTABLE TEDIT.GETSYNTAX TEDIT.SETSYNTAX 
                    TEDIT.GETFUNCTION TEDIT.SETFUNCTION TEDIT.WORDGET TEDIT.WORDSET 
                    TEDIT.ATOMBOUND.READTABLE))
-                                                             (* ; "Keybindings")

-        (DECLARE%: EVAL@COMPILE DONTCOPY (EXPORT (CONSTANTS \TEDIT.TTCCODES)
-                                                (MACROS \TEDIT.TTC)))
-        (VARS TEDIT.CHARACTIONS TEDIT.BASIC.CHARBINDINGS TEDIT.DORADO.CHARBINDINGS
-              (TEDIT.CHARBINDINGS (APPEND TEDIT.BASIC.CHARBINDINGS TEDIT.DORADO.CHARBINDINGS)))
-                                                             (* ; "Installation")

-        [DECLARE%: DONTEVAL@LOAD DOCOPY (VARS (TEDIT.READTABLE (\TEDIT.READTABLE))
-                                              (TEDIT.WORDBOUND.READTABLE (\TEDIT.WORDBOUND.READTABLE]
         
         (* ;; "On-screen formatting buttons (TEDIT.BUTTONS.BUILD) creates the default button menu")

 
-        (VARS TEDIT.BUTTONS.SPEC)
         (FNS TEDIT.BUTTONS.BUILD TEDIT.BUTTONBITMAP.FILL)
-        (INITVARS (TEDIT.BUTTONS.WINDOW NIL))
-        (VARS TEDIT.BUTTONBITMAP)))
+        (INITVARS TEDIT.BUTTONS.WINDOW)
+        (VARS TEDIT.BUTTONBITMAP)
+        [INITVARS (TEDIT.BUTTONS.SPEC '((Bold :BOLD.ON :BOLD.OFF)
+                                        (Italic :ITALIC.ON :ITALIC.OFF)
+                                        (Case :UCASE :LCASE)
+                                        ((Strike- out)
+                                         :STRIKEOUT.ON :STRIKEOUT.OFF)
+                                        ((Under- line)
+                                         :UNDERLINE.ON :UNDERLINE.OFF)
+                                        ((Super/ Sub)
+                                         :SUPERSCRIPT :SUBSCRIPT)
+                                        ((Larger Smaller)
+                                         :LARGER :SMALLER)
+                                        (Justify :QUAD)
+                                        (Defaults :DEFAULTS)
+                                        (Show :SHOW.CHARLOOKS)
+                                        (Redo :REDO]
+                                                             (* ; "Keybindings")

+        (DECLARE%: EVAL@COMPILE DONTCOPY (EXPORT (CONSTANTS \TEDIT.TTCCODES)
+                                                (MACROS \TEDIT.TTC)))
+        (FNS \TEDIT.TTCCLASS)
+        (VARS ORIG.TEDIT.CHARACTIONS)
+        (INITVARS (TEDIT.CHARACTIONS (APPEND ORIG.TEDIT.CHARACTIONS)))
+        (VARS TEDIT.BASIC.CHARBINDINGS TEDIT.DORADO.CHARBINDINGS)
+        (INITVARS (TEDIT.CHARBINDINGS (APPEND TEDIT.BASIC.CHARBINDINGS TEDIT.DORADO.CHARBINDINGS)))
+        (GLOBALVARS TEDIT.CHARBINDINGS TEDIT.CHARACTIONS)
+                                                             (* ; "Installation")

+        (DECLARE%: DONTEVAL@LOAD DOCOPY (VARS (TEDIT.READTABLE (\TEDIT.READTABLE))
+                                              (TEDIT.WORDBOUND.READTABLE (\TEDIT.WORDBOUND.READTABLE])
 
 
 
@@ -70,7 +88,9 @@
 (DEFINEQ
 
 (TEDIT.INSTALL.CHARBINDINGS

-  [LAMBDA (CHARBINDINGS RDTBL CHARACTIONS)
                   (* ; "Edited  7-Apr-2025 20:01 by rmk")


+  [LAMBDA (CHARBINDINGS RDTBL CHARACTIONS)
                   (* ; "Edited 24-Nov-2025 00:10 by rmk")


+                                                             (* ; "Edited 10-Nov-2025 16:47 by rmk")


+                                                             (* ; "Edited  7-Apr-2025 20:01 by rmk")


                                                              (* ; "Edited  5-Apr-2025 11:36 by rmk")


                                                              (* ; "Edited  1-Apr-2025 00:19 by rmk")


                                                              (* ; "Edited 18-Mar-2025 11:15 by rmk")


@@ -86,6 +106,7 @@
     (CL:UNLESS CHARBINDINGS (SETQ CHARBINDINGS TEDIT.CHARBINDINGS))
     (CL:UNLESS (LISTP CHARBINDINGS)
            (\ILLEGAL.ARG CHARBINDINGS))
+    (CL:UNLESS CHARACTIONS (SETQ CHARACTIONS TEDIT.CHARACTIONS))
     (CL:UNLESS (READTABLEP RDTBL)
         (SETQ RDTBL (if
 (NULL RDTBL)
                         then
 TEDIT.READTABLE
@@ -94,37 +115,21 @@
                                         TXTRTBL)
                                  TEDIT.READTABLE)
                       else
 (\ILLEGAL.ARG RDTBL))))
-    (CL:UNLESS CHARACTIONS (SETQ CHARACTIONS TEDIT.CHARACTIONS))
     (TEDIT.CONFLICTING.CHARBINDINGS
 (APPEND CHARBINDINGS (TEDIT.GET.ALL.CHARBINDINGS
 RDTBL)))
-    [for
 CB A ACTION in
 CHARBINDINGS first
 (TEDIT.CONFLICTING.CHARBINDINGS
 (APPEND CHARBINDINGS
-                                                                                  (
-
                                                                           TEDIT.GET.ALL.CHARBINDINGS

-                                                                                   RDTBL)))
-       when
 (LISTP CB) unless
 (EQ '* (CAR CB)) when
 (AND [SETQ ACTION
-                                                          (find
 PAIR in
 CHARACTIONS
-                                                             suchthat
 
-
-                                                                   (* ;; 
-
                                                                  "An ASSOC that allows synonym keys")

-
-                                                                   (EQMEMB (CAR CB)
-                                                                          (CAR PAIR]
-                                                         (SETQ A (CADR ACTION)))
-       do
 (for
 CHAR in
 (CDR CB) do
 (CL:UNLESS (CHARCODEP CHAR)
-                                       (SETQ CHAR (CHARCODE.DECODE CHAR)))
-                                   (TEDIT.SETFUNCTION
 CHAR A RDTBL) 
+    (for
 CB ACTION in
 CHARBINDINGS when
 (LISTP CB) unless
 (EQ '* (CAR CB))
+       when
 (SETQ ACTION (CADR (ASSOC (CAR CB)
+                                      CHARACTIONS))) do
 (for
 CHAR in
 (CDR CB)
+                                                           do
 (CL:UNLESS (CHARCODEP CHAR)
+                                                                  (SETQ CHAR (CHARCODE.DECODE CHAR)))
+                                                              (TEDIT.SETFUNCTION
 CHAR ACTION RDTBL)))
                                                              (* ; "Set the method")

-                                   (CL:WHEN NIL
-                                       (ASSOC (CAR ACTION)
-                                              \TEDIT.TTCCODES)
-                                                             (* ; 
-
                                                   "A tag like NEXT, UNDO. Setup the termtable FWIW ")

-                                       (TEDIT.SETSYNTAX
 CHAR (CAR ACTION)
-                                              RDTBL))]
     RDTBL])
 
 (TEDIT.CLEAR.CHARBINDINGS

-  [LAMBDA (RDTBL BINDINGS)
                                   (* ; "Edited  5-Apr-2025 11:36 by rmk")


+  [LAMBDA (RDTBL BINDINGS)
                                   (* ; "Edited 12-Nov-2025 14:44 by rmk")


+                                                             (* ; "Edited 10-Nov-2025 14:22 by rmk")


+                                                             (* ; "Edited  8-Nov-2025 10:00 by rmk")


+                                                             (* ; "Edited  5-Apr-2025 11:36 by rmk")


                                                              (* ; "Edited 18-Mar-2025 11:10 by rmk")


                                                              (* ; "Edited 15-Mar-2025 12:02 by rmk")

 
@@ -142,28 +147,31 @@
         [if
 (EQ BINDINGS T)
             then
 [MAPHASH (fetch
 READMACRODEFS of
 RDTBL)
                         (FUNCTION (LAMBDA (VAL CHARCODE)
-                                    (CL:WHEN (EQ (\TEDIT.TTC FUNCTIONCALL)
+                                    (CL:WHEN (EQ (\TEDIT.TTC FN)
                                                  (\SYNCODE (fetch
 READSA of
 RDTBL)
                                                         CHARCODE))
                                         (TEDIT.SETFUNCTION
 CHARCODE NIL RDTBL)
-                                        (CL:WHEN (ASSOC CHARCODE \TEDIT.TTCCODES)
+                                        (CL:WHEN (\TEDIT.TTCCLASS
 CHARCODE)
                                                              (* ; 
-
                                                   "A tag like NEXT, UNDO. Setup the termtable FWIW ")

-                                            (TEDIT.SETSYNTAX
 CHARCODE CHARCODE RDTBL)))]
+
                                     "A tag like NEXT, UNDO. Normalize and setup the termtable FWIW ")

+                                            (TEDIT.SETSYNTAX
 (\TEDIT.TTCCLASS
 CHARCODE)
+                                                   CHARCODE RDTBL)))]
                  BINDINGS
           else
 (for
 CB in
 BINDINGS when
 (LISTP CB) unless
 (EQ '* (CAR CB))
                   do
 (for
 CHARCODE in
 (CDR CB) do
 (CL:UNLESS (CHARCODEP CHARCODE)
                                                       (SETQ CHARCODE (CHARCODE.DECODE CHARCODE)))
                                                   (TEDIT.SETFUNCTION
 CHARCODE NIL RDTBL)
-                                                  (CL:WHEN (ASSOC (CAR CB)
-                                                                  \TEDIT.TTCCODES)
+                                                  (CL:WHEN (\TEDIT.TTCCLASS
 (CAR CB))
                                                              (* ; 
-
                                                   "A tag like NEXT, UNDO. Setup the termtable FWIW ")

-                                                      (TEDIT.SETSYNTAX
 CHARCODE (CAR CB)
-                                                             RDTBL))])])
+
                                     "A tag like NEXT, UNDO. Normalize and setup the termtable FWIW ")

+                                                      (TEDIT.SETSYNTAX
 (\TEDIT.TTCCLASS
 (CAR CB))
+                                                             CHARCODE RDTBL))])])
 
 (TEDIT.GET.CHARACTION

-  [LAMBDA (CHARCODE BINDINGS)
                                (* ; "Edited  5-Apr-2025 11:36 by rmk")


+  [LAMBDA (CHARCODE BINDINGS)
                                (* ; "Edited 12-Nov-2025 14:44 by rmk")


+                                                             (* ; "Edited 10-Nov-2025 15:55 by rmk")


+                                                             (* ; "Edited  8-Nov-2025 10:00 by rmk")


+                                                             (* ; "Edited  5-Apr-2025 11:36 by rmk")


                                                              (* ; "Edited 19-Mar-2025 14:51 by rmk")


                                                              (* ; "Edited 18-Mar-2025 11:07 by rmk")


                                                              (* ; "Edited 17-Mar-2025 09:43 by rmk")

@@ -184,39 +192,6 @@
                                        (RETURN (CL:IF (CDR $$VAL)
                                                    $$VAL
                                                    (CAR $$VAL))]
-      else
 (LET [(RDTBL (if
 (NULL BINDINGS)
-                            then
 TEDIT.READTABLE
-                          elseif
 (TEXTSTREAM BINDINGS T)
-                            then
 (OR (GETTOBJ (TEXTOBJ BINDINGS)
-                                            TXTRTBL)
-                                     TEDIT.READTABLE)
-                          elseif
 (READTABLEP BINDINGS)
-                          else
 (\ILLEGAL.ARG BINDINGS]
-                [MAPHASH (fetch
 READMACRODEFS of
 RDTBL)
-                       (FUNCTION (LAMBDA (VAL CCODE)
-                                   (CL:WHEN (AND (EQ CCODE CHARCODE)
-                                                 (EQ (\TEDIT.TTC FUNCTIONCALL)
-                                                     (\SYNCODE (fetch
 READSA of
 RDTBL)
-                                                            CHARCODE)))
-                                       (for
 CA in
 TEDIT.CHARACTIONS when
 (EQUAL (CADR CA)
-                                                                                (CADR VAL))
-                                          do
 (RETFROM (FUNCTION TEDIT.GET.CHARACTION)
-                                                    (CAR CA))))]
-                NIL])
-
-(TEDIT.GET.CHARBINDING

-  [LAMBDA (ACTION BINDINGS RETURNCODES)
                      (* ; "Edited 23-Apr-2025 10:11 by rmk")


-                                                             (* ; "Edited  5-Apr-2025 11:37 by rmk")


-                                                             (* ; "Edited 18-Mar-2025 20:40 by rmk")

-
-    (* ;; "Returns the bindings for ACTION in BINDINGS, a binding list or a read-table specification. If BINDINGS is a readtable, looks at all currently installed bindings in that readtable.  If NIL, uses TEDIT.READTABLE.")

-
-    (if
 (LISTP BINDINGS)
-        then
 (for
 CB in
 BINDINGS when
 (EQ ACTION (CAR CB)) join
 
-                                                                (* ;; 
-
                                                  "Allow for duplicate bindings for the same action?")

-
-                                                                (APPEND (CDR CB)))
       else
 (LET ((RDTBL (if
 (NULL BINDINGS)
                             then
 TEDIT.READTABLE
                           elseif
 (TEXTSTREAM BINDINGS T)
@@ -225,25 +200,56 @@
                                      TEDIT.READTABLE)
                           elseif
 (READTABLEP BINDINGS)
                           else
 (\ILLEGAL.ARG BINDINGS)))
-                 [IMPL (CADR (find
 CA in
 TEDIT.CHARACTIONS suchthat
 (EQMEMB ACTION (CAR CA]
+                 VAL)
+                (CL:WHEN [AND (EQ (\TEDIT.TTC FN)
+                                  (\SYNCODE (fetch
 READSA of
 RDTBL)
+                                         CHARCODE))
+                              (SETQ VAL (fetch
 MACROFN of
 (GETHASH CHARCODE (fetch
 READMACRODEFS
+                                                                               of
 RDTBL]
+                    [CAR (find
 ACTION in
 TEDIT.CHARACTIONS suchthat
 (EQUAL VAL (CDR ACTION])])
+
+(TEDIT.GET.CHARBINDING

+  [LAMBDA (ACTION BINDINGS RETURNCODES)
                      (* ; "Edited 10-Nov-2025 12:49 by rmk")


+                                                             (* ; "Edited  9-Nov-2025 10:10 by rmk")


+                                                             (* ; "Edited 23-Apr-2025 10:11 by rmk")


+                                                             (* ; "Edited  5-Apr-2025 11:37 by rmk")


+                                                             (* ; "Edited 18-Mar-2025 20:40 by rmk")

+
+    (* ;; "Returns the character bindings for ACTION in BINDINGS, a binding list or a read-table specification. If BINDINGS is a readtable, looks at all currently installed bindings in that readtable.  If NIL, uses TEDIT.READTABLE.")

+
+    (if
 (LISTP BINDINGS)
+        then
 (APPEND (CADR (ASSOC ACTION BINDINGS)))
+      else
 (LET ((RDTBL (if
 (NULL BINDINGS)
+                            then
 TEDIT.READTABLE
+                          elseif
 (TEXTSTREAM BINDINGS T)
+                            then
 (OR (GETTOBJ (TEXTOBJ BINDINGS)
+                                            TXTRTBL)
+                                     TEDIT.READTABLE)
+                          elseif
 (READTABLEP BINDINGS)
+                          else
 (\ILLEGAL.ARG BINDINGS)))
+                 (IMPL (CADR (ASSOC ACTION TEDIT.CHARACTIONS)))
                  CHARS)
-                (CL:WHEN IMPL
+                (CL:WHEN IMPL                                (* ; 
+
                               "The hashtable doesn't have the action names, just the implementation")

                     [MAPHASH (fetch
 READMACRODEFS of
 RDTBL)
                            (FUNCTION (LAMBDA (VAL CCODE)
                                        (CL:WHEN (EQUAL IMPL (CADR VAL))
                                                              (* ; "charcode, not charname")

                                            (push
 CHARS (CL:IF RETURNCODES
                                                            CCODE
-                                                           (CHARCODE.ENCODE
 CCODE))))]
+                                                           (CHARCODE.ENCODE CCODE))))]
                     CHARS)])
 
 (TEDIT.GET.ALL.CHARBINDINGS

-  [LAMBDA (RDTBL RETURNCODES)
                                (* ; "Edited 23-Apr-2025 10:11 by rmk")


+  [LAMBDA (RDTBL RETURNCODES)
                                (* ; "Edited 12-Nov-2025 14:44 by rmk")


+                                                             (* ; "Edited 10-Nov-2025 13:07 by rmk")


+                                                             (* ; "Edited  8-Nov-2025 10:00 by rmk")


+                                                             (* ; "Edited 23-Apr-2025 10:11 by rmk")


                                                              (* ; "Edited  7-Apr-2025 22:11 by rmk")


                                                              (* ; "Edited  5-Apr-2025 11:37 by rmk")


                                                              (* ; "Edited 18-Mar-2025 20:51 by rmk")

 
-    (* ;; "Returns the charbindings instantiated in RDTBL, in the form of TEDIT.CHARBINDINGS:  (action . chars)")

+    (* ;; "Returns the character bindings instantiated in RDTBL, in the form of TEDIT.CHARBINDINGS:  (action . chars/codes)")

 
     (CL:UNLESS (READTABLEP RDTBL)
         (SETQ RDTBL (if
 (NULL RDTBL)
@@ -256,27 +262,28 @@
     (LET (ACTIONS)
          [MAPHASH (fetch
 READMACRODEFS of
 RDTBL)
                 (FUNCTION (LAMBDA (VAL CCODE)
-                            (CL:WHEN (EQ (\TEDIT.TTC FUNCTIONCALL)
+                            (CL:WHEN (EQ (\TEDIT.TTC FN)
                                          (\SYNCODE (fetch
 READSA of
 RDTBL)
                                                 CCODE))
                                 (for
 CA ANAME in
 TEDIT.CHARACTIONS when
 (LISTP CA)
                                    unless
 (EQ '* (CAR CA)) when
 (EQUAL (CADR CA)
                                                                        (CADR VAL))
-                                   do
 (SETQ ANAME (CAR (CL:IF (LISTP (CAR CA))
-                                                           (CAR CA)
-                                                           CA)))
-                                      (PUSH
 [CDR (OR (ASSOC ANAME ACTIONS)
-                                                     (CAR (PUSH
 ACTIONS (CONS ANAME]
-                                            CCODE)))]
+                                   do
 
+                                      (* ;; "Same implementation")

+
+                                      (SETQ ANAME (CAR CA))
+                                      (PUSHMULTI ACTIONS (CAR CA)
+                                             CCODE)))]
          (SORT ACTIONS T)
          [for
 A S in
 ACTIONS do
 (SETQ S (SORT (CDR A)))
                                 (RPLACD A (CL:IF RETURNCODES
                                               S
-                                              (CHARCODE.ENCODE
 S))]
+                                              (CHARCODE.ENCODE S))]
          ACTIONS])
 
 (TEDIT.CHARBINDINGS.INVERT

-  [LAMBDA (CHARBINDINGS RETURNCODES)
                         (* ; "Edited 23-Apr-2025 10:11 by rmk")


+  [LAMBDA (CHARBINDINGS RETURNCODES)
                         (* ; "Edited 10-Nov-2025 16:21 by rmk")


+                                                             (* ; "Edited 23-Apr-2025 10:11 by rmk")


                                                              (* ; "Edited  7-Apr-2025 22:39 by rmk")


                                                              (* ; "Edited  4-Apr-2025 09:58 by rmk")


                                                              (* ; "Edited  1-Apr-2025 15:09 by rmk")

@@ -284,25 +291,24 @@
     (* ;; "Inverts CHARBINDINGS to return a list of (char/code . actions), usually a single action unless there is a conflict.. ")

 
     (for
 CB ACTIONSPERCHAR CA in
 CHARBINDINGS when
 (CDR (LISTP CB)) unless
 (EQ '* (CAR CB))
-       do
 [for
 CHAR CODE CACTIONS in
 (CDR CB) do
 (SETQ CODE (CHARCODE.DECODE CHAR))
-                                                 (SETQ CACTIONS (ASSOC CODE ACTIONSPERCHAR))
-                                                 (CL:UNLESS CACTIONS
-                                                     (push
 ACTIONSPERCHAR (SETQ CACTIONS (CONS CODE))
-                                                           ))
-                                                 (CL:UNLESS (MEMB (CAR CB)
-                                                                  (CDR CACTIONS))
-                                                     (push
 (CDR CACTIONS)
-                                                           (CAR CB)))]
+       do
 (for
 CHAR CODE CACTIONS in
 (CDR CB) eachtime
 (SETQ CODE (CHARCODE.DECODE CHAR))
+             do
 (PUSHMULTI-NEW ACTIONSPERCHAR CODE (CAR CB)))
        finally
 (SORT ACTIONSPERCHAR T)
              (CL:UNLESS RETURNCODES
                  (for
 APC in
 ACTIONSPERCHAR do
 (change
 (CAR APC)
-                                                      (CHARCODE.ENCODE
 DATUM))))
-             (RETURN ACTIONSPERCHAR])
+                                                      (CHARCODE.ENCODE DATUM))))
+             (RETURN (SORT ACTIONSPERCHAR T])
 
 (TEDIT.GET.ALL.CHARACTIONS

-  [LAMBDA (RDTBL RETURNCODES)
                                (* ; "Edited 23-Apr-2025 10:11 by rmk")


+  [LAMBDA (RDTBL RETURNCODES)
                                (* ; "Edited 12-Nov-2025 14:44 by rmk")


+                                                             (* ; "Edited 10-Nov-2025 13:37 by rmk")


+                                                             (* ; "Edited  8-Nov-2025 10:00 by rmk")


+                                                             (* ; "Edited 23-Apr-2025 10:11 by rmk")


                                                              (* ; "Edited  5-Apr-2025 11:37 by rmk")


                                                              (* ; "Edited 18-Mar-2025 20:51 by rmk")

+
+    (* ;; "Returns an alist containing all of the (character action) bindings in RDTBL.")

+
     (CL:UNLESS (READTABLEP RDTBL)
         (SETQ RDTBL (if
 (NULL RDTBL)
                         then
 TEDIT.READTABLE
@@ -311,27 +317,24 @@
                                         TXTRTBL)
                                  TEDIT.READTABLE)
                       else
 (\ILLEGAL.ARG RDTBL))))
-    (LET (ACTIONS)
+    (LET (BINDINGS)
          [MAPHASH (fetch
 READMACRODEFS of
 RDTBL)
                 (FUNCTION (LAMBDA (VAL CCODE)
-                            (CL:WHEN (EQ (\TEDIT.TTC FUNCTIONCALL)
+                            (CL:WHEN (EQ (\TEDIT.TTC FN)
                                          (\SYNCODE (fetch
 READSA of
 RDTBL)
                                                 CCODE))
                                 (for
 CA ANAME in
 TEDIT.CHARACTIONS when
 (LISTP CA)
                                    unless
 (EQ '* (CAR CA)) when
 (EQUAL (CADR CA)
                                                                        (CADR VAL))
-                                   do
 (SETQ ANAME (CAR (CL:IF (LISTP (CAR CA))
-                                                           (CAR CA)
-                                                           CA)))
-                                      (PUSH
 [CDR (OR (ASSOC ANAME ACTIONS)
-                                                     (CAR (PUSH
 ACTIONS (CONS ANAME]
-                                            CCODE)))]
-         (SORT ACTIONS T)
-         [for
 A S in
 ACTIONS do
 (SETQ S (SORT (CDR A)))
-                                (RPLACD A (CL:IF RETURNCODES
-                                              S
-                                              (CHARCODE.ENCODE
 S))]
-         ACTIONS])
+                                   do
                        (* ; "Match on implementation")

+                                      (PUSHMULTI BINDINGS (CL:IF RETURNCODES
+                                                              CCODE
+                                                              (CHARCODE.ENCODE CCODE))
+                                             (CAR CA))))]
+         (SORT BINDINGS T)
+         (for
 B in
 BINDINGS do
 (change
 (CDR B)
+                                      (SORT DATUM)))
+         BINDINGS])
 
 (TEDIT.CONFLICTING.CHARBINDINGS

   [LAMBDA (CHARBINDINGS NOERROR)
                             (* ; "Edited  7-Apr-2025 22:40 by rmk")


@@ -846,7 +849,8 @@
 (DEFINEQ
 
 (\TEDIT.LINEDELETE.FORWARD

-  [LAMBDA (TSTREAM TEXTOBJ SEL)
                              (* ; "Edited  6-Apr-2025 14:41 by rmk")


+  [LAMBDA (TSTREAM TEXTOBJ SEL)
                              (* ; "Edited 12-Nov-2025 16:14 by rmk")


+                                                             (* ; "Edited  6-Apr-2025 14:41 by rmk")


                                                              (* ; "Edited 15-Mar-2025 23:02 by rmk")


                                                              (* ; "Edited  9-Mar-2025 22:11 by rmk")


                                                              (* ; "Edited  4-Mar-2025 17:22 by rmk")

@@ -861,10 +865,11 @@
              (\TEDIT.NOSEL TSTREAM)
              (\TEDIT.UPDATE.SEL SEL HERE (IDIFFERENCE (FGETLD LINE LCHARLIM)
                                                 HERE))
-             (TEDIT.DELETE TSTREAM SEL))])
+             (\TEDIT.DELETE TSTREAM SEL))])
 
 (\TEDIT.LINEDELETE.BACKWARD

-  [LAMBDA (TSTREAM TEXTOBJ SEL)
                              (* ; "Edited  6-Apr-2025 14:41 by rmk")


+  [LAMBDA (TSTREAM TEXTOBJ SEL)
                              (* ; "Edited 12-Nov-2025 16:13 by rmk")


+                                                             (* ; "Edited  6-Apr-2025 14:41 by rmk")


                                                              (* ; "Edited 15-Mar-2025 23:02 by rmk")


                                                              (* ; "Edited  9-Mar-2025 22:11 by rmk")


                                                              (* ; "Edited  4-Mar-2025 17:22 by rmk")

@@ -880,7 +885,24 @@
              (\TEDIT.NOSEL TSTREAM)
              (\TEDIT.UPDATE.SEL SEL HERE (IDIFFERENCE (FGETLD LINE LCHAR1)
                                                 HERE))
-             (TEDIT.DELETE TEXTOBJ SEL))])
+             (\TEDIT.DELETE TSTREAM SEL))])
+
+(\TEDIT.LINEDELETE

+  [LAMBDA (TSTREAM TEXTOBJ SEL)
                              (* ; "Edited 12-Nov-2025 16:14 by rmk")


+                                                             (* ; "Edited  6-Apr-2025 14:41 by rmk")


+                                                             (* ; "Edited 15-Mar-2025 23:02 by rmk")


+                                                             (* ; "Edited  9-Mar-2025 22:11 by rmk")


+                                                             (* ; "Edited  4-Mar-2025 17:22 by rmk")

+                                                             (* gbn "13-Dec-84 11:56")

+
+    (* ;; "Deletes from the beginning of the caret's line to the end of the caret's line.  Line must be visible in the selpane.")

+
+    (LET ((LINE (\TEDIT.SEL.L1 SEL NIL TEXTOBJ)))
+         (CL:WHEN LINE
+             (\TEDIT.NOSEL TSTREAM)
+             (\TEDIT.UPDATE.SEL SEL (FGETLD LINE LCHAR1)
+                    (FGETLD LINE LNCH))
+             (\TEDIT.DELETE TSTREAM SEL))])
 )
 (DEFINEQ
 
@@ -1268,7 +1290,8 @@
          RTBL])
 
 (\TEDIT.WORDBOUND.READTABLE

-  [LAMBDA NIL
                                                (* ; "Edited  2-Aug-2025 22:06 by rmk")


+  [LAMBDA NIL
                                                (* ; "Edited 12-Nov-2025 14:44 by rmk")


+                                                             (* ; "Edited  2-Aug-2025 22:06 by rmk")


                                                              (* ; "Edited 15-Mar-2025 12:00 by rmk")


                                                              (* ; "Edited 13-Mar-2025 22:24 by rmk")


                                                              (* ; "Edited 22-May-92 15:10 by jds")

@@ -1308,27 +1331,31 @@
           RTBL])
 
 (TEDIT.GETSYNTAX

-  [LAMBDA (CH TABLE)
                                         (* ; "Edited 29-May-2025 16:20 by rmk")


+  [LAMBDA (CH TABLE)
                                         (* ; "Edited 12-Nov-2025 14:46 by rmk")


+                                                             (* ; "Edited 10-Nov-2025 13:36 by rmk")


+                                                             (* ; "Edited  8-Nov-2025 13:32 by rmk")


+                                                             (* ; "Edited 29-May-2025 16:20 by rmk")


                                                              (* ; "Edited 12-Mar-2025 12:55 by rmk")


                                                              (* ; "Edited 24-Dec-2023 09:47 by rmk")


                                                              (* ; "Edited 31-Mar-87 10:01 by jds")

 
-    (* ;; "Find TEdit's interpretation of a given character")

+    (* ;; "Map back to documented syntax-class names just for those defined classes, otherwise FN, for compatibility with documentation and history.  ")

 
-    (CAR (find
 TTC (SYNCODE _ (\SYNCODE (fetch
 READSA of
 (if
 (NULL TABLE)
-                                                             then
 TEDIT.READTABLE
-                                                           elseif
 (TEXTSTREAM TABLE T)
-                                                             then
 (OR (GETTOBJ (TEXTOBJ TABLE)
-                                                                             TXTRTBL)
-                                                                      TEDIT.READTABLE)
-                                                           else
 TABLE))
-                                     (CL:IF (OR (LITATOM CH)
-                                                (STRINGP CH))
-                                         (CHARCODE.DECODE CH)
-                                         CH))) in
 \TEDIT.TTCCODES suchthat
 (EQ SYNCODE (CADR TTC])
+    (SELECTQ (TEDIT.GET.CHARACTION
 CH TABLE)
+        (:CHARDELETE.BACKWARD 
+             'CHARDELETE)
+        (:WORDDELETE.BACKWARD 
+             'WORDDELETE)
+        (:DELETE 'DELETE)
+        (:UNDO 'UNDO)
+        (:REDO 'REDO)
+        (:NEXT 'NEXT)
+        (NIL 'NONE)
+        'FN])
 
 (TEDIT.SETSYNTAX

-  [LAMBDA (CHAR CLASS RDTBL)
                                 (* ; "Edited 13-Mar-2025 21:52 by rmk")


+  [LAMBDA (CHAR CLASS RDTBL)
                                 (* ; "Edited 12-Nov-2025 14:44 by rmk")


+                                                             (* ; "Edited 13-Mar-2025 21:52 by rmk")


                                                              (* ; "Edited 24-Dec-2023 09:17 by rmk")


                                                              (* ; "Edited 31-Mar-87 10:00 by jds")

                                                              (* ; 
@@ -1351,7 +1378,9 @@
                    (\TEDIT.TTC NONE))))])
 
 (TEDIT.GETFUNCTION

-  [LAMBDA (CHARCODE RDTBL)
                                   (* ; "Edited  5-Apr-2025 11:37 by rmk")


+  [LAMBDA (CHARCODE RDTBL)
                                   (* ; "Edited 12-Nov-2025 14:44 by rmk")


+                                                             (* ; "Edited  8-Nov-2025 11:13 by rmk")


+                                                             (* ; "Edited  5-Apr-2025 11:37 by rmk")


                                                              (* ; "Edited 13-Mar-2025 22:56 by rmk")


                                                              (* ; "Edited  7-Mar-2025 12:02 by rmk")

                                                              (* jds "19-Sep-85 17:06")

@@ -1368,14 +1397,17 @@
                              TEDIT.READTABLE)
                   else
 RDTBL))
     (CL:WHEN (AND (READTABLEP RDTBL)
-                  (EQ (\TEDIT.TTC FUNCTIONCALL)
+                  (EQ (\TEDIT.TTC FN)
                       (\SYNCODE (fetch
 READSA of
 RDTBL)
                              CHARCODE))
                   (fetch
 READMACRODEFS of
 RDTBL))
         [CAR (FETCH
 MACROFN OF
 (GETHASH CHARCODE (fetch
 READMACRODEFS of
 RDTBL])])
 
 (TEDIT.SETFUNCTION

-  [LAMBDA (CHARCODE FN RDTBL)
                                (* ; "Edited 13-Mar-2025 22:51 by rmk")


+  [LAMBDA (CHARCODE FN RDTBL)
                                (* ; "Edited 24-Nov-2025 00:36 by rmk")


+                                                             (* ; "Edited 12-Nov-2025 14:44 by rmk")


+                                                             (* ; "Edited  8-Nov-2025 10:02 by rmk")


+                                                             (* ; "Edited 13-Mar-2025 22:51 by rmk")


                                                              (* ; "Edited  7-Mar-2025 12:03 by rmk")


                                                              (* ; "Edited 31-Mar-87 10:58 by jds")

                                                              (* ; 
@@ -1391,12 +1423,11 @@
                     then
 (OR (GETTOBJ (TEXTOBJ RDTBL)
                                     TXTRTBL)
                              TEDIT.READTABLE)
-                  else
 RDTBL))                               (* ; 
-
                                                          "Mark the character as invoking a function")

+                  else
 RDTBL))
     (\SETSYNCODE (fetch
 READSA of
 RDTBL)
            CHARCODE
            (CL:IF FN
-               (\TEDIT.TTC FUNCTIONCALL)
+               (\TEDIT.TTC FN)
                (\TEDIT.TTC NONE)))
     (CL:UNLESS (fetch
 READMACRODEFS of
 RDTBL)
         (replace
 READMACRODEFS of
 RDTBL with
 (HARRAY 50)))   (* ; 
@@ -1414,7 +1445,8 @@
               (T (CHCON1 CH])
 
 (TEDIT.WORDSET

-  [LAMBDA (CHARCODE CLASS TABLE)
                             (* ; "Edited 13-Mar-2025 21:43 by rmk")

+  [LAMBDA (CHARCODE CLASS TABLE)
                             (* ; "Edited 12-Nov-2025 14:45 by rmk")


+                                                             (* ; "Edited 13-Mar-2025 21:43 by rmk")

                                                              (* jds " 1-JUN-83 12:23")

 
     (* ;; "Sets Tedit syntax bits in a termtable. ")

@@ -1450,389 +1482,8 @@
 
 
 
-(* ; "Keybindings")

-
-(DECLARE%: EVAL@COMPILE DONTCOPY 
-(* "FOLLOWING DEFINITIONS EXPORTED")(DECLARE%: EVAL@COMPILE 
-
-(RPAQQ \TEDIT.TTCCODES

-       ((NONE 0)
-        (CHARDELETE 1)
-        (WORDDELETE 2)
-        (DELETE 3)
-        (FUNCTIONCALL 4)
-        (REDO 5)
-        (UNDO 6)
-        (CMD 7)
-        (NEXT 8)
-        (EXPAND 9)
-        (CHARDELETE.FORWARD 10)
-        (WORDDELETE.FORWARD 11)
-        (PUNCT 20)
-        (TEXT 21)
-        (WHITESPACE 22)))
-
-
-(CONSTANTS \TEDIT.TTCCODES)
-)
-(DECLARE%: EVAL@COMPILE 
-
-(PUTPROPS \TEDIT.TTC
 MACRO
 [(CLASS)
-                            (CONSTANT (CADR (ASSOC 'CLASS \TEDIT.TTCCODES])
-)
-
-(* "END EXPORTED DEFINITIONS")
-
-)
-
-(RPAQQ TEDIT.CHARACTIONS

-       ((TEDIT-PF PF-TEDIT-FROM-TEXT)
-        
-        (* ;; "This defines the implementation of the named actions.  They are activated by keybinding specifications given to TEDIT.INSTALL.KEYBINDINGS.")

-
-        
-        (* ;; "")

-
-        
-        (* ;; "History")

-
-        (UNDO (TEDIT.UNDO TSTREAM))
-        (UNDO.UNDO \TEDIT.UNDO.UNDO)
-                                                             (* ; "CHECK")

-        (REDO TEDIT.REDO)
-        
-        (* ;; "")

-
-        
-        (* ;; "Find")

-
-        ((FIND.FORWARD FIND)
-         (\TEDIT.KEY.FIND TSTREAM))
-        (FIND.BACKWARD (\TEDIT.KEY.FIND TSTREAM NIL T))
-        (FIND.FORWARD-AGAIN (\TEDIT.KEY.FIND TSTREAM T))
-        (FIND.BACKWARD-AGAIN (\TEDIT.KEY.FIND TSTREAM T T))
-        (SUBSTITUTE \TEDIT.KEY.SUBSTITUTE)
-        (NEXT TEDIT.NEXT)
-        
-        (* ;; "")

-
-        
-        (* ;; "Character looks")

-
-        (BOLD.ON (\TEDIT.KEY.CHARLOOKS TSTREAM 'BOLD 'ON))
-        (BOLD.OFF (\TEDIT.KEY.CHARLOOKS TSTREAM 'BOLD 'OFF))
-        (BOLD.TOGGLE (\TEDIT.KEY.CHARLOOKS TSTREAM 'BOLD 'TOGGLE))
-        (ITALIC.ON (\TEDIT.KEY.CHARLOOKS TSTREAM 'ITALIC 'ON))
-        (ITALIC.OFF (\TEDIT.KEY.CHARLOOKS TSTREAM 'ITALIC 'OFF))
-        (ITALIC.TOGGLE (\TEDIT.KEY.CHARLOOKS TSTREAM 'ITALIC 'TOGGLE))
-        (UCASE (\TEDIT.KEY.TRANSFORM TSTREAM (FUNCTION U-CASECODE)))
-        (LCASE (\TEDIT.KEY.TRANSFORM TSTREAM (FUNCTION L-CASECODE)))
-        (INITIALCAP (\TEDIT.KEY.TRANSFORM TSTREAM (FUNCTION CAP-CASECODE)))
-        (STRIKEOUT.ON (\TEDIT.KEY.CHARLOOKS TSTREAM 'STRIKEOUT 'ON))
-        (STRIKEOUT.OFF (\TEDIT.KEY.CHARLOOKS TSTREAM 'STRIKEOUT 'OFF))
-        (STRIKEOUT.TOGGLE (\TEDIT.KEY.CHARLOOKS TSTREAM 'STRIKEOUT 'TOGGLE))
-        (UNDERLINE.ON (\TEDIT.KEY.CHARLOOKS TSTREAM 'UNDERLINE 'ON))
-        (UNDERLINE.OFF (\TEDIT.KEY.CHARLOOKS TSTREAM 'UNDERLINE 'OFF))
-        (UNDERLINE.TOGGLE (\TEDIT.KEY.CHARLOOKS TSTREAM 'UNDERLINE 'TOGGLE))
-        (OVERLINE.ON (\TEDIT.KEY.CHARLOOKS TSTREAM 'OVERLINE 'ON))
-        (OVERLINE.OFF (\TEDIT.KEY.CHARLOOKS TSTREAM 'OVERLINE 'OFF))
-        (OVERLINE.TOGGLE (\TEDIT.KEY.CHARLOOKS TSTREAM 'OVERLINE 'TOGGLE))
-        (UNBREAKABLE.ON (\TEDIT.KEY.CHARLOOKS TSTREAM 'UNBREAKABLE 'ON))
-        (UNBREAKABLE.OFF (\TEDIT.KEY.CHARLOOKS TSTREAM 'UNBREAKABLE 'OFF))
-        (UNBREAKABLE.TOGGLE (\TEDIT.KEY.CHARLOOKS TSTREAM 'UNBREAKABLE 'TOGGLE))
-        (SUBSCRIPT \TEDIT.SUBSCRIPTSEL)
-        (SUPERSCRIPT \TEDIT.SUPERSCRIPTSEL)
-        (SMALLER (\TEDIT.KEY.SIZE TSTREAM '-))
-        (LARGER (\TEDIT.KEY.SIZE TSTREAM '+))
-        (FAMILYN (\TEDIT.KEY.FAMILYN TSTREAM CHARCODE))
-        (DEFAULTS \TEDIT.DEFAULTSSEL)
-        (SHOW.CHARLOOKS \TEDIT.SHOWCARETLOOKS)
-        
-        (* ;; "")

-
-        
-        (* ;; "Paragraph looks")

-
-        (NEST (\TEDIT.KEY.NEST TSTREAM))
-        (UNNEST (\TEDIT.KEY.NEST TSTREAM T))
-        ((QUAD CENTER)
-         (\TEDIT.KEY.QUAD TSTREAM))
-        (QUAD.REVERSE (\TEDIT.KEY.QUAD TSTREAM T))
-        
-        (* ;; "")

-
-        
-        (* ;; "Cursor/selection")

-
-        (ONECHAR.BACKWARD \TEDIT.ONECHAR.BACKWARD)
-        (ONECHAR.FORWARD \TEDIT.ONECHAR.FORWARD)
-        (LINE.UP \TEDIT.ONELINE.UP)
-        (LINE.DOWN \TEDIT.ONELINE.DOWN)
-        (ONEWORD.FORWARD \TEDIT.ONEWORD.FORWARD)
-        (ONEWORD.BACKWARD \TEDIT.ONEWORD.BACKWARD)
-        (LINE.BEGIN \TEDIT.LINE.BEGIN)
-        (LINE.END \TEDIT.LINE.END)
-        (DOCUMENT.BEGIN \TEDIT.DOCUMENT.BEGIN)
-        (DOCUMENT.END \TEDIT.DOCUMENT.END)
-        (ALL \TEDIT.SELECT.ALL)
-        
-        (* ;; "")

-
-        
-        (* ;; "Deletion ")

-
-        ((CHARDELETE CHARDELETE.BACKWORD)
-         (\TEDIT.CHARDELETE TSTREAM))
-        (CHARDELETE.FORWARD (\TEDIT.CHARDELETE TSTREAM T))
-        (WORDDELELETE \TEDIT.WORDDELETE)
-        (WORDDELETE.FORWARD \TEDIT.WORDDELETE.FORWARD)
-        (LINEDELETE.FORWARD \TEDIT.LINEDELETE.FORWARD)
-        (LINEDELETE.BACKWARD \TEDIT.LINEDELETE.BACKWARD)
-        
-        (* ;; "")

-
-        
-        (* ;; "Miscellaneous")

-
-        (MANPAGE \TEDIT.MANPAGE)
-        (OPEN.SEDIT \TEDIT.CALL.ED)
-        (PRINT.MENU \TEDIT.PRINT.MENU)
-        (EXPAND \TEDIT.ABBREV.EXPAND)
-        (GET.OBJECT GET.OBJ.FROM.USER)
-        (OPENLINE \TEDIT.KEY.OPENLINE)
-        
-        (* ;; "")

-
-        
-        (* ;; "From TEDITDORADOKEYS")

-
-        (WRAP.PARENS (\TEDIT.KEY.WRAP TSTREAM "(" ")"))
-        (WRAP.NEUTRAL.DOUBLEQUOTES (\TEDIT.KEY.WRAP TSTREAM "%"" "%""))
-        [WRAP.REAL.DOUBLEQUOTES (\TEDIT.KEY.WRAP TSTREAM (CHARACTER (CHARCODE LEFT-DOUBLEQUOTE))
-                                       (CHARACTER (CHARCODE RIGHT-DOUBLEQUOTE]
-        
-        (* ;; "")

-
-        
-        (* ;; "Clipboard")

-
-        (CLIPBOARD-PASTE PASTEFROMCLIPBOARD)
-        (CLIPBOARD-COPY \TEDIT.COPYTOCLIPBOARD)
-        (CLIPBOARD-EXTRACT \TEDIT.EXTRACTTOCLIPBOARD)
-        
-        (* ;; "")

-
-        
-        (* ;; "Wheelscroll")

-
-        (WHEELSCROLL-UP (WHEELSCROLL 'VERTICAL T))
-        (WHEELSCROLL-DOWN (WHEELSCROLL 'VERTICAL))
-        (WHEELSCROLL-LEFT (WHEELSCROLL 'HORIZONTAL))
-        (WHEELSCROLL-RIGHT (WHEELSCROLL 'HORIZONTAL T))))
-
-(RPAQQ TEDIT.BASIC.CHARBINDINGS

-       (
-        (* ;; "Establishes key bindings for particular Tedit key actions. Function,xxx roughly correspond to Koto release notes, but this preserves the immediately preceding assignments if those drifted away from the Koto notes. There is no obvious way of typing Function.  Maybe Meta,^xxx instead, as in DORADO.KEYBINDINGS.  (But CTRL collapses upper and lower case).")

-
-        
-        (* ;; "")

-
-        
-        (* ;; "History")

-
-        (UNDO "Meta,u" "Meta,z" "Function,4" "Function,44")
-        (UNDO.UNDO "Meta,U" "Meta,Z")
-        (REDO "Meta,r" "Meta,R" "Function,10" "Function,50")
-        
-        (* ;; "")

-
-        
-        (* ;; "Find")

-
-        (FIND.FORWARD "Meta,f" "Function,3" "Function,43")
-        (FIND.BACKWARD "Meta,F")
-        (FIND.FORWARD-AGAIN "Meta,g")
-        (FIND.BACKWARD-AGAIN "Meta,G")
-        (SUBSTITUTE "Meta,s" "Meta,S")
-        (NEXT "Meta,N" "Meta,n" "Function,22")
-        
-        (* ;; "")

-
-        
-        (* ;; "Character looks")

-
-        (BOLD.ON "Function,102")
-        (BOLD.OFF "Function,142")
-        (BOLD.TOGGLE)
-        (ITALIC.ON "Function,103")
-        (ITALIC.OFF "Function,143")
-        (ITALIC.TOGGLE)
-        (UCASE "Function,104")
-        (LCASE "Function,144")
-        (STRIKEOUT.ON "Function,105")
-        (STRIKEOUT.OFF "Function,145")
-        (STRIKEOUT.TOGGLE)
-        (UNDERLINE.ON "Function,106")
-        (UNDERLINE.OFF "Function,146")
-        (UNDERLINE.TOGGLE)
-        (OVERLINE.ON)
-        (OVERLINE.OFF)
-        (OVERLINE.TOGGLE)
-        (SUBSCRIPT "Function,114")
-        (SUPERSCRIPT "Function,113")
-        (SMALLER "Function,110")
-        (LARGER "Function,150")
-        (FAMILYN "Meta,One" "Meta,Two" "Meta,Three" "Meta,Four" "Meta,Five" "Meta,Six")
-        (DEFAULTS "Function,115" "Function,155")
-        (SHOW.CHARLOOKS "Function,1")
-        
-        (* ;; "")

-
-        
-        (* ;; "Paragraph looks")

-
-        (QUAD "Function,101")
-        (NEST "Meta,[")
-        (UNNEST "Meta,]")
-        
-        (* ;; "")

-
-        
-        (* ;; "Cursor/selection")

-
-        (ONECHAR.BACKWARD "Meta,<" "Meta,,")
-                                                             (* ; "From arrows")

-        (ONECHAR.FORWARD "Meta,>" "Meta,.")
-        (LINE.UP "Meta,^")
-        (LINE.DOWN "Meta,LF")
-        (ONEWORD.FORWARD)
-        (ONEWORD.BACKWARD)
-        (LINE.BEGIN)
-        (LINE.END)
-        (ALL "Meta,a" "Meta,A")
-        
-        (* ;; "")

-
-        
-        (* ;; "Deletion")

-
-        (CHARDELETE "BS" "^A")
-                                                             (* ; "CHARDELETE/WORDDELETE are TTC")

-        (CHARDELETE.FORWARD "^W" "^U")
-                                                             (* ; "keyactions for DEL key ??")

-        (WORDDELELETE)
-        (WORDDELETE.FORWARD)
-                                                             (* ; "^W is used for chardelete forward")

-        (LINEDELETE.FORWARD)
-        (LINEDELETE.BACKWARD)
-        
-        (* ;; "")

-
-        
-        (* ;; "Miscellaneous")

-
-        (MANPAGE "Meta,D" "Meta,d")
-        (OPEN.SEDIT "Meta,O" "Meta,o")
-        (PRINT.MENU "Meta,P" "Meta,p")
-        (EXPAND "^X")
-        (GET.OBJECT "^O")
-        
-        (* ;; "")

-
-        
-        (* ;; "Wheelscroll  ")

-
-        (WHEELSCROLL-UP "WHEELSCROLL-UP")
-        (WHEELSCROLL-DOWN "WHEELSCROLL-DOWN")
-        (WHEELSCROLL-LEFT "WHEELSCROLL-LEFT")
-        (WHEELSCROLL-RIGHT "WHEELSCROLL-RIGHT")
-        
-        (* ;; "")

-
-        
-        (* ;; "Clipboard")

-
-        (CLIPBOARD-PASTE "Meta,V" "Meta,v")
-        (CLIPBOARD-COPY "Meta,C" "Meta,c")
-        (CLIPBOARD-EXTRACT "Meta,X" "Meta,x")))
-
-(RPAQQ TEDIT.DORADO.CHARBINDINGS

-       (
-        (* ;; "Taken from lispusers>TKDORADO, these make the indicated Tedit commands available from the Dorado keyboard.")

-
-        (DEFAULTS "Meta,^V")
-        (BOLD.ON "Meta,^B" "Meta,b")
-        (BOLD.OFF "Meta,^N" "Meta,B")
-        (ITALIC.ON "Meta,^I")
-        (ITALIC.OFF "Meta,^O")
-        (OVERLINE.ON "Meta,^D")
-        (OVERLINE.OFF "Meta,^F")
-        (STRIKEOUT.ON "Meta,^G")
-        (STRIKEOUT.OFF "Meta,^H")
-        (* (UNDERLINE.ON "Meta,^J")
-           conflicts with LINE.DOWN)
-        (UNDERLINE.OFF "Meta,^K")
-        (SMALLER "Meta,^[")
-        (LARGER "Meta,^^]")
-        (SUBSCRIPT "Meta,^^")
-        (SUPERSCRIPT "Meta,^_")
-        (QUAD "Meta,^C")
-        
-        (* ;; "Mappings from lispusers>TEDITDORADOKEYS")

-
-        (* ("Meta,c" QUAD)
-           ("Meta,C" QUAD)
-           ("Meta,x" EXPAND)
-           ("Meta,X" EXPAND)
-           conflict with clipboard)
-        (* ("Meta,^" SUBSCRIPT)
-           conflicts with LINE.UP)
-        (BOLD.ON "Meta,b")
-        (BOLD.OFF "Meta,B")
-        (ITALIC.ON "Meta,i")
-        (ITALIC.OFF "Meta,I")
-        (STRIKEOUT.ON "Meta,=")
-        (STRIKEOUT.OFF "Meta,+")
-        (UNDERLINE.ON "Meta,-")
-        (UNDERLINE.OFF "Meta,_")
-        (WRAP.PARENS "Meta,(" "Meta,Nine")
-        (WRAP.NEUTRAL.DOUBLEQUOTES "Meta,%"")
-        (WRAP.REAL.DOUBLEQUOTES "Meta,'")))
-
-(RPAQ TEDIT.CHARBINDINGS
 (APPEND TEDIT.BASIC.CHARBINDINGS TEDIT.DORADO.CHARBINDINGS))
-
-
-
-(* ; "Installation")

-
-(DECLARE%: DONTEVAL@LOAD DOCOPY 
-
-(RPAQ TEDIT.READTABLE
 (\TEDIT.READTABLE))
-
-(RPAQ TEDIT.WORDBOUND.READTABLE
 (\TEDIT.WORDBOUND.READTABLE))
-)
-
-
-
 (* ;; "On-screen formatting buttons (TEDIT.BUTTONS.BUILD) creates the default button menu")

 
-
-(RPAQQ TEDIT.BUTTONS.SPEC

-       ((Bold BOLD.ON BOLD.OFF)
-        (Italic ITALIC.ON ITALIC.OFF)
-        (Case UCASE LCASE)
-        ((Strike- out)
-         STRIKEOUT.ON STRIKEOUT.OFF)
-        ((Under- line)
-         UNDERLINE.ON UNDERLINE.OFF)
-        ((Super/ Sub)
-         SUPERSCRIPT SUBSCRIPT)
-        ((Larger Smaller)
-         LARGER SMALLER)
-        (Justify QUAD)
-        (Defaults DEFAULTS)
-        (Show SHOW.CHARLOOKS)
-        (Redo REDO)))
 (DEFINEQ
 
 (TEDIT.BUTTONS.BUILD

@@ -1938,30 +1589,427 @@
 
 (RPAQQ TEDIT.BUTTONBITMAP
 #*(78 48)OOOOOOOOOOOOOOOOOOOLON@@@@@@@@@@@@@@@AOLO@@@@@@@@@@@@@@@@@CLO@@@@@@@@@@@@@@@@@CLMH@@@@@@@@@@@@@@@@DLNLGOOOOOOOOOOOOOOHHLMFL@@@@@@@@@@@@@@M@LJK@@@@@@@@@@@@@@@B@DMF@@@@@@@@@@@@@@@A@DJN@@@@@@@@@@@@@@@AHDMD@@@@@@@@@@@@@@@@HDJL@@@@@@@@@@@@@@@@HDMD@@@@@@@@@@@@@@@@HDJL@@@@@@@@@@@@@@@@HDMD@@@@@@@@@@@@@@@@HDJL@@@@@@@@@@@@@@@@HDMD@@@@@@@@@@@@@@@@HDJL@@@@@@@@@@@@@@@@HDMD@@@@@@@@@@@@@@@@HDJL@@@@@@@@@@@@@@@@HDMD@@@@@@@@@@@@@@@@HDJL@@@@@@@@@@@@@@@@HDMD@@@@@@@@@@@@@@@@HDJL@@@@@@@@@@@@@@@@HDMD@@@@@@@@@@@@@@@@HDJL@@@@@@@@@@@@@@@@HDMD@@@@@@@@@@@@@@@@HDJL@@@@@@@@@@@@@@@@HDMD@@@@@@@@@@@@@@@@HDJL@@@@@@@@@@@@@@@@HDMD@@@@@@@@@@@@@@@@HDJL@@@@@@@@@@@@@@@@HDMD@@@@@@@@@@@@@@@@HDJL@@@@@@@@@@@@@@@@HDMD@@@@@@@@@@@@@@@@HDJL@@@@@@@@@@@@@@@@HDMD@@@@@@@@@@@@@@@@HDJL@@@@@@@@@@@@@@@@HDMF@@@@@@@@@@@@@@@AHDJJ@@@@@@@@@@@@@@@A@DMG@@@@@@@@@@@@@@@B@DNEL@@@@@@@@@@@@@@O@LLIGOOOOOOOOOOOOOOMHLOBBJJJJJJJJJJJJJJJLLNDEEEEEEEEEEEEEEEEGLOHJJJJJJJJJJJJJJJJKLOLEEEEEEEEEEEEEEEEOLOOOOOOOOOOOOOOOOOOOL
 )
+
+(RPAQ? TEDIT.BUTTONS.SPEC

+       '((Bold :BOLD.ON :BOLD.OFF)
+         (Italic :ITALIC.ON :ITALIC.OFF)
+         (Case :UCASE :LCASE)
+         ((Strike- out)
+          :STRIKEOUT.ON :STRIKEOUT.OFF)
+         ((Under- line)
+          :UNDERLINE.ON :UNDERLINE.OFF)
+         ((Super/ Sub)
+          :SUPERSCRIPT :SUBSCRIPT)
+         ((Larger Smaller)
+          :LARGER :SMALLER)
+         (Justify :QUAD)
+         (Defaults :DEFAULTS)
+         (Show :SHOW.CHARLOOKS)
+         (Redo :REDO)))
+
+
+
+(* ; "Keybindings")

+
+(DECLARE%: EVAL@COMPILE DONTCOPY 
+(* "FOLLOWING DEFINITIONS EXPORTED")(DECLARE%: EVAL@COMPILE 
+
+(RPAQQ \TEDIT.TTCCODES

+       ((NONE . 0)
+        (CHARDELETE . 1)
+        (:CHARDELETE.BACKWARD . 1)
+        (WORDDELETE . 2)
+        (:WORDDELETE.BACKWORD . 2)
+        (DELETE . 3)
+        (:DELETE . 3)
+        (FN . 4)
+        (REDO . 5)
+        (:REDO . 5)
+        (UNDO . 6)
+        (:UNDO . 6)
+        (CMD . 7)
+        (:CMD . 7)
+        (NEXT . 8)
+        (:NEXT . 8)
+        (EXPAND . 9)
+        (:EXPAND . 9)
+        (CHARDELETE.FORWARD . 10)
+        (:CHARDELETE.FORWARD . 10)
+        (:WORDDELETE.FORWARD . 11)
+        (PUNCT . 20)
+        (TEXT . 21)
+        (WHITESPACE . 22)))
+
+
+(CONSTANTS \TEDIT.TTCCODES)
+)
+(DECLARE%: EVAL@COMPILE 
+
+(PUTPROPS \TEDIT.TTC
 MACRO
 [(ACTION)
+                            (CONSTANT (GETMULTI \TEDIT.TTCCODES 'ACTION])
+)
+
+(* "END EXPORTED DEFINITIONS")
+
+)
+(DEFINEQ
+
+(\TEDIT.TTCCLASS

+  [LAMBDA (CODE/CLASS)
                                       (* ; "Edited 12-Nov-2025 13:51 by rmk")


+                                                             (* ; "Edited 10-Nov-2025 14:34 by rmk")

+
+    (* ;; "Class gets the (normalized) class for a CODE (or class atom).")

+
+    (CAR (find
 TTC in
 \TEDIT.TTCCODES suchthat
 (if
 (FIXP CODE/CLASS)
+                                                   then
 (EQ CODE/CLASS (CDR TTC))
+                                                 elseif
 (EQ CODE/CLASS (CAR TTC])
+)
+
+(RPAQQ ORIG.TEDIT.CHARACTIONS

+       (
+        (* ;; "This defines Tedit's implementation of the named actions.  They are activated by keybinding specifications given to TEDIT.INSTALL.KEYBINDINGS.")

+
+        
+        (* ;; "")

+
+        
+        (* ;; "History")

+
+        (:UNDO (TEDIT.UNDO TSTREAM))
+        (:UNDO.UNDO \TEDIT.UNDO.UNDO)
+                                                             (* ; "CHECK")

+        (:REDO TEDIT.REDO)
+        
+        (* ;; "")

+
+        
+        (* ;; "Find")

+
+        (:FIND.FORWARD (\TEDIT.KEY.FIND TSTREAM))
+        (:FIND.BACKWARD (\TEDIT.KEY.FIND TSTREAM NIL T))
+        (:FIND.FORWARD-AGAIN (\TEDIT.KEY.FIND TSTREAM T))
+        (:FIND.BACKWARD-AGAIN (\TEDIT.KEY.FIND TSTREAM T T))
+        (:SUBSTITUTE \TEDIT.KEY.SUBSTITUTE)
+        (:NEXT TEDIT.NEXT)
+        
+        (* ;; "")

+
+        
+        (* ;; "Character looks")

+
+        (:BOLD.ON (\TEDIT.KEY.CHARLOOKS TSTREAM 'BOLD 'ON))
+        (:BOLD.OFF (\TEDIT.KEY.CHARLOOKS TSTREAM 'BOLD 'OFF))
+        (:BOLD.TOGGLE (\TEDIT.KEY.CHARLOOKS TSTREAM 'BOLD 'TOGGLE))
+        (:ITALIC.ON (\TEDIT.KEY.CHARLOOKS TSTREAM 'ITALIC 'ON))
+        (:ITALIC.OFF (\TEDIT.KEY.CHARLOOKS TSTREAM 'ITALIC 'OFF))
+        (:ITALIC.TOGGLE (\TEDIT.KEY.CHARLOOKS TSTREAM 'ITALIC 'TOGGLE))
+        (:UCASE (\TEDIT.KEY.TRANSFORM TSTREAM (FUNCTION U-CASECODE)))
+        (:LCASE (\TEDIT.KEY.TRANSFORM TSTREAM (FUNCTION L-CASECODE)))
+        (:INITIALCAP (\TEDIT.KEY.TRANSFORM TSTREAM (FUNCTION CAP-CASECODE)))
+        (:STRIKEOUT.ON (\TEDIT.KEY.CHARLOOKS TSTREAM 'STRIKEOUT 'ON))
+        (:STRIKEOUT.OFF (\TEDIT.KEY.CHARLOOKS TSTREAM 'STRIKEOUT 'OFF))
+        (:STRIKEOUT.TOGGLE (\TEDIT.KEY.CHARLOOKS TSTREAM 'STRIKEOUT 'TOGGLE))
+        (:UNDERLINE.ON (\TEDIT.KEY.CHARLOOKS TSTREAM 'UNDERLINE 'ON))
+        (:UNDERLINE.OFF (\TEDIT.KEY.CHARLOOKS TSTREAM 'UNDERLINE 'OFF))
+        (:UNDERLINE.TOGGLE (\TEDIT.KEY.CHARLOOKS TSTREAM 'UNDERLINE 'TOGGLE))
+        (:OVERLINE.ON (\TEDIT.KEY.CHARLOOKS TSTREAM 'OVERLINE 'ON))
+        (:OVERLINE.OFF (\TEDIT.KEY.CHARLOOKS TSTREAM 'OVERLINE 'OFF))
+        (:OVERLINE.TOGGLE (\TEDIT.KEY.CHARLOOKS TSTREAM 'OVERLINE 'TOGGLE))
+        (:UNBREAKABLE.ON (\TEDIT.KEY.CHARLOOKS TSTREAM 'UNBREAKABLE 'ON))
+        (:UNBREAKABLE.OFF (\TEDIT.KEY.CHARLOOKS TSTREAM 'UNBREAKABLE 'OFF))
+        (:UNBREAKABLE.TOGGLE (\TEDIT.KEY.CHARLOOKS TSTREAM 'UNBREAKABLE 'TOGGLE))
+        (:SUBSCRIPT \TEDIT.SUBSCRIPTSEL)
+        (:SUPERSCRIPT \TEDIT.SUPERSCRIPTSEL)
+        (:SMALLER (\TEDIT.KEY.SIZE TSTREAM '-))
+        (:LARGER (\TEDIT.KEY.SIZE TSTREAM '+))
+        (:FAMILYN (\TEDIT.KEY.FAMILYN TSTREAM CHARCODE))
+        (:DEFAULTS \TEDIT.DEFAULTSSEL)
+        (:SHOW.CHARLOOKS \TEDIT.SHOWCARETLOOKS)
+        
+        (* ;; "")

+
+        
+        (* ;; "Paragraph looks")

+
+        (:NEST (\TEDIT.KEY.NEST TSTREAM))
+        (:UNNEST (\TEDIT.KEY.NEST TSTREAM T))
+        (:QUAD (\TEDIT.KEY.QUAD TSTREAM))
+        (:QUAD.REVERSE (\TEDIT.KEY.QUAD TSTREAM T))
+        
+        (* ;; "")

+
+        
+        (* ;; "Cursor/selection")

+
+        (:ONECHAR.BACKWARD \TEDIT.ONECHAR.BACKWARD)
+        (:ONECHAR.FORWARD \TEDIT.ONECHAR.FORWARD)
+        (:LINE.UP \TEDIT.ONELINE.UP)
+        (:LINE.DOWN \TEDIT.ONELINE.DOWN)
+        (:ONEWORD.FORWARD \TEDIT.ONEWORD.FORWARD)
+        (:ONEWORD.BACKWARD \TEDIT.ONEWORD.BACKWARD)
+        (:LINE.BEGIN \TEDIT.LINE.BEGIN)
+        (:LINE.END \TEDIT.LINE.END)
+        (:DOCUMENT.BEGIN \TEDIT.DOCUMENT.BEGIN)
+        (:DOCUMENT.END \TEDIT.DOCUMENT.END)
+        (:ALL \TEDIT.SELECT.ALL)
+        
+        (* ;; "")

+
+        
+        (* ;; "Deletion ")

+
+        (:CHARDELETE.BACKWARD (\TEDIT.CHARDELETE TSTREAM))
+        (:CHARDELETE.FORWARD (\TEDIT.CHARDELETE TSTREAM T))
+        (:WORDDELETE.BACKWARD \TEDIT.WORDDELETE)
+        (:WORDDELETE.FORWARD \TEDIT.WORDDELETE.FORWARD)
+        (:LINEDELETE.FORWARD \TEDIT.LINEDELETE.FORWARD)
+        (:LINEDELETE.BACKWARD \TEDIT.LINEDELETE.BACKWARD)
+        (:LINEDELETE \TEDIT.LINEDELETE)
+        
+        (* ;; "")

+
+        
+        (* ;; "Miscellaneous")

+
+        (:MANPAGE \TEDIT.MANPAGE)
+        (:OPEN.SEDIT \TEDIT.CALL.ED)
+        (:PRINT.MENU \TEDIT.PRINT.MENU)
+        (:EXPAND \TEDIT.ABBREV.EXPAND)
+        (:GET.OBJECT GET.OBJ.FROM.USER)
+        (:OPENLINE \TEDIT.KEY.OPENLINE)
+        
+        (* ;; "")

+
+        
+        (* ;; "From TEDITDORADOKEYS")

+
+        (:WRAP.PARENS (\TEDIT.KEY.WRAP TSTREAM "(" ")"))
+        (:WRAP.NEUTRAL.DOUBLEQUOTES (\TEDIT.KEY.WRAP TSTREAM "%"" "%""))
+        [:WRAP.REAL.DOUBLEQUOTES (\TEDIT.KEY.WRAP TSTREAM (CHARACTER (CHARCODE LEFT-DOUBLEQUOTE))
+                                        (CHARACTER (CHARCODE RIGHT-DOUBLEQUOTE]
+        
+        (* ;; "")

+
+        
+        (* ;; "Clipboard")

+
+        (:CLIPBOARD-PASTE PASTEFROMCLIPBOARD)
+        (:CLIPBOARD-COPY \TEDIT.COPYTOCLIPBOARD)
+        (:CLIPBOARD-EXTRACT \TEDIT.EXTRACTTOCLIPBOARD)
+        
+        (* ;; "")

+
+        
+        (* ;; "Wheelscroll")

+
+        (:WHEELSCROLL-UP (WHEELSCROLL 'VERTICAL T))
+        (:WHEELSCROLL-DOWN (WHEELSCROLL 'VERTICAL))
+        (:WHEELSCROLL-LEFT (WHEELSCROLL 'HORIZONTAL))
+        (:WHEELSCROLL-RIGHT (WHEELSCROLL 'HORIZONTAL T))))
+
+(RPAQ? TEDIT.CHARACTIONS
 (APPEND ORIG.TEDIT.CHARACTIONS))
+
+(RPAQQ TEDIT.BASIC.CHARBINDINGS

+       (
+        (* ;; "Establishes key bindings for particular Tedit key actions. Function,xxx roughly correspond to Koto release notes, but this preserves the immediately preceding assignments if those drifted away from the Koto notes. There is no obvious way of typing Function.  Maybe Meta,^xxx instead, as in DORADO.KEYBINDINGS.  (But CTRL collapses upper and lower case).")

+
+        
+        (* ;; "")

+
+        
+        (* ;; "History")

+
+        (:UNDO "Meta,u" "Meta,z" "Function,4" "Function,44")
+        (:UNDO.UNDO "Meta,U" "Meta,Z")
+        (:REDO "Meta,r" "Meta,R" "Function,10" "Function,50")
+        
+        (* ;; "")

+
+        
+        (* ;; "Find")

+
+        (:FIND.FORWARD "Meta,f" "Function,3" "Function,43")
+        (:FIND.BACKWARD "Meta,F")
+        (:FIND.FORWARD-AGAIN "Meta,g")
+        (:FIND.BACKWARD-AGAIN "Meta,G")
+        (:SUBSTITUTE "Meta,s" "Meta,S")
+        (:NEXT "Meta,N" "Meta,n" "Function,22")
+        
+        (* ;; "")

+
+        
+        (* ;; "Character looks")

+
+        (:BOLD.ON "Function,102")
+        (:BOLD.OFF "Function,142")
+        (:BOLD.TOGGLE)
+        (:ITALIC.ON "Function,103")
+        (:ITALIC.OFF "Function,143")
+        (:ITALIC.TOGGLE)
+        (:UCASE "Function,104")
+        (:LCASE "Function,144")
+        (:STRIKEOUT.ON "Function,105")
+        (:STRIKEOUT.OFF "Function,145")
+        (:STRIKEOUT.TOGGLE)
+        (:UNDERLINE.ON "Function,106")
+        (:UNDERLINE.OFF "Function,146")
+        (:UNDERLINE.TOGGLE)
+        (:OVERLINE.ON)
+        (:OVERLINE.OFF)
+        (:OVERLINE.TOGGLE)
+        (:SUBSCRIPT "Function,114")
+        (:SUPERSCRIPT "Function,113")
+        (:SMALLER "Function,110")
+        (:LARGER "Function,150")
+        (:FAMILYN "Meta,One" "Meta,Two" "Meta,Three" "Meta,Four" "Meta,Five" "Meta,Six")
+        (:DEFAULTS "Function,115" "Function,155")
+        (:SHOW.CHARLOOKS "Function,1")
+        
+        (* ;; "")

+
+        
+        (* ;; "Paragraph looks")

+
+        (:QUAD "Function,101")
+        (:NEST "Meta,[")
+        (:UNNEST "Meta,]")
+        
+        (* ;; "")

+
+        
+        (* ;; "Cursor/selection")

+
+        (:ONECHAR.BACKWARD "Meta,<" "Meta,,")
+                                                             (* ; "From arrows")

+        (:ONECHAR.FORWARD "Meta,>" "Meta,.")
+        (:LINE.UP "Meta,^")
+        (:LINE.DOWN "Meta,LF")
+        (:ONEWORD.FORWARD)
+        (:ONEWORD.BACKWARD)
+        (:LINE.BEGIN)
+        (:LINE.END)
+        (:ALL "Meta,a" "Meta,A")
+        
+        (* ;; "")

+
+        
+        (* ;; "Deletion")

+
+        (:CHARDELETE.BACKWARD "BS" "^A")
+        (:CHARDELETE.FORWARD RUBOUT)
+        (:WORDDELETE.BACKWARD "^W")
+        (:WORDDELETE.FORWARD "^U")
+        (:LINEDELETE.FORWARD)
+        (:LINEDELETE.BACKWARD)
+        (:LINEDELETE)
+        
+        (* ;; "")

+
+        
+        (* ;; "Miscellaneous")

+
+        (:MANPAGE "Meta,D" "Meta,d")
+        (:OPEN.SEDIT "Meta,O" "Meta,o")
+        (:PRINT.MENU "Meta,P" "Meta,p")
+        (:EXPAND "^X")
+        (:GET.OBJECT "^O")
+        
+        (* ;; "")

+
+        
+        (* ;; "Wheelscroll  ")

+
+        (:WHEELSCROLL-UP "WHEELSCROLL-UP")
+        (:WHEELSCROLL-DOWN "WHEELSCROLL-DOWN")
+        (:WHEELSCROLL-LEFT "WHEELSCROLL-LEFT")
+        (:WHEELSCROLL-RIGHT "WHEELSCROLL-RIGHT")
+        
+        (* ;; "")

+
+        
+        (* ;; "Clipboard")

+
+        (:CLIPBOARD-PASTE "Meta,V" "Meta,v")
+        (:CLIPBOARD-COPY "Meta,C" "Meta,c")
+        (:CLIPBOARD-EXTRACT "Meta,X" "Meta,x")))
+
+(RPAQQ TEDIT.DORADO.CHARBINDINGS

+       (
+        (* ;; "Taken from lispusers>TKDORADO, these make the indicated Tedit commands available from the Dorado keyboard.")

+
+        (:DEFAULTS "Meta,^V")
+        (:BOLD.ON "Meta,^B" "Meta,b")
+        (:BOLD.OFF "Meta,^N" "Meta,B")
+        (:ITALIC.ON "Meta,^I" "Meta,i")
+        (:ITALIC.OFF "Meta,^O" "Meta,I")
+        (:OVERLINE.ON "Meta,^D")
+        (:OVERLINE.OFF "Meta,^F")
+        (:STRIKEOUT.ON "Meta,^G" "Meta,=")
+        (:STRIKEOUT.OFF "Meta,^H" "Meta,+")
+        (* (UNDERLINE.ON "Meta,^J")
+           conflicts with :LINE.DOWN)
+        (:UNDERLINE.ON "Meta,-")
+        (:UNDERLINE.OFF "Meta,^K" "Meta,_")
+        (:SMALLER "Meta,^[")
+        (:LARGER "Meta,^^]")
+        (:SUBSCRIPT "Meta,^^")
+        (:SUPERSCRIPT "Meta,^_")
+        (:QUAD "Meta,^C")
+        
+        (* ;; "Mappings from lispusers>TEDITDORADOKEYS")

+
+        (* ("Meta,c" QUAD)
+           ("Meta,C" QUAD)
+           ("Meta,x" EXPAND)
+           ("Meta,X" EXPAND)
+           conflict with clipboard)
+        (* ("Meta,^" SUBSCRIPT)
+           conflicts with LINE.UP)
+        (:WRAP.PARENS "Meta,(" "Meta,Nine")
+        (:WRAP.NEUTRAL.DOUBLEQUOTES "Meta,%"")
+        (:WRAP.REAL.DOUBLEQUOTES "Meta,'")))
+
+(RPAQ? TEDIT.CHARBINDINGS
 (APPEND TEDIT.BASIC.CHARBINDINGS TEDIT.DORADO.CHARBINDINGS))
+(DECLARE%: DOEVAL@COMPILE DONTCOPY
+
+(GLOBALVARS TEDIT.CHARBINDINGS TEDIT.CHARACTIONS)
+)
+
+
+
+(* ; "Installation")

+
+(DECLARE%: DONTEVAL@LOAD DOCOPY 
+
+(RPAQ TEDIT.READTABLE
 (\TEDIT.READTABLE))
+
+(RPAQ TEDIT.WORDBOUND.READTABLE
 (\TEDIT.WORDBOUND.READTABLE))
+)
 (DECLARE%: DONTCOPY
-  (FILEMAP (NIL (3941 22863 (TEDIT.INSTALL.CHARBINDINGS 3951 . 7842) (TEDIT.CLEAR.CHARBINDINGS 7844 . 
-10522) (TEDIT.GET.CHARACTION 10524 . 13270) (TEDIT.GET.CHARBINDING 13272 . 15411) (
-TEDIT.GET.ALL.CHARBINDINGS 15413 . 17729) (TEDIT.CHARBINDINGS.INVERT 17731 . 19461) (
-TEDIT.GET.ALL.CHARACTIONS 19463 . 21549) (TEDIT.CONFLICTING.CHARBINDINGS 21551 . 22861)) (22923 32978 
-(\TEDIT.KEY.CHARLOOKS 22933 . 24125) (\TEDIT.KEY.QUAD 24127 . 26220) (\TEDIT.DEFAULTSSEL 26222 . 26833
-) (\TEDIT.SETDEFAULT.FROM.SEL 26835 . 27512) (\TEDIT.KEY.SIZE 27514 . 28710) (\TEDIT.SUBSCRIPTSEL 
-28712 . 28915) (\TEDIT.SUPERSCRIPTSEL 28917 . 29121) (\TEDIT.KEY.TRANSFORM 29123 . 31120) (
-\TEDIT.KEY.OPENLINE 31122 . 31576) (\TEDIT.KEY.FAMILYN 31578 . 32976)) (32979 33268 (CAP-CASECODE 
-32989 . 33266)) (33302 36734 (\TEDIT.SHOWCARETLOOKS 33312 . 35827) (\TEDIT.DESCRIBEFONT 35829 . 36732)
-) (36765 51738 (\TEDIT.ONECHAR.BACKWARD 36775 . 37922) (\TEDIT.ONECHAR.FORWARD 37924 . 39160) (
-\TEDIT.ONELINE.UP 39162 . 42123) (\TEDIT.ONELINE.DOWN 42125 . 43782) (\TEDIT.ONELINE.MOVE 43784 . 
-46071) (\TEDIT.ONEWORD.BACKWARD 46073 . 47261) (\TEDIT.ONEWORD.FORWARD 47263 . 48450) (
-\TEDIT.LINE.BEGIN 48452 . 49531) (\TEDIT.LINE.END 49533 . 50770) (\TEDIT.DOCUMENT.BEGIN 50772 . 51131)
- (\TEDIT.DOCUMENT.END 51133 . 51736)) (51739 53781 (\TEDIT.LINEDELETE.FORWARD 51749 . 52748) (
-\TEDIT.LINEDELETE.BACKWARD 52750 . 53779)) (53782 56310 (\TEDIT.KEY.NEST 53792 . 56308)) (56311 57593 
-(\TEDIT.KEY.WRAP 56321 . 57591)) (57684 65732 (\TEDIT.KEY.FIND 57694 . 62872) (
-\TEDIT.KEY.FIND.SEARCHSTRING 62874 . 64014) (\TEDIT.GET.TARGET.STRING 64016 . 65730)) (65763 68395 (
-\TEDIT.KEY.SUBSTITUTE 65773 . 65994) (\TEDIT.MANPAGE 65996 . 67243) (\TEDIT.CALL.ED 67245 . 68075) (
-\TEDIT.SELECT.ALL 68077 . 68393)) (68422 74112 (\TEDIT.CLIPBOARD 68432 . 70187) (
-\TEDIT.COPYTOCLIPBOARD 70189 . 70969) (\TEDIT.EXTRACTTOCLIPBOARD 70971 . 71166) (\TEDIT.WRITE.SEL 
-71168 . 74110)) (74278 86280 (\TEDIT.READTABLE 74288 . 75224) (\TEDIT.WORDBOUND.READTABLE 75226 . 
-78165) (TEDIT.GETSYNTAX 78167 . 79596) (TEDIT.SETSYNTAX 79598 . 80803) (TEDIT.GETFUNCTION 80805 . 
-82070) (TEDIT.SETFUNCTION 82072 . 84058) (TEDIT.WORDGET 84060 . 84321) (TEDIT.WORDSET 84323 . 84954) (
-TEDIT.ATOMBOUND.READTABLE 84956 . 86278)) (98109 105097 (TEDIT.BUTTONS.BUILD 98119 . 103365) (
-TEDIT.BUTTONBITMAP.FILL 103367 . 105095)))))
+  (FILEMAP (NIL (5031 23296 (TEDIT.INSTALL.CHARBINDINGS 5041 . 7892) (TEDIT.CLEAR.CHARBINDINGS 7894 . 
+10914) (TEDIT.GET.CHARACTION 10916 . 13697) (TEDIT.GET.CHARBINDING 13699 . 15876) (
+TEDIT.GET.ALL.CHARBINDINGS 15878 . 18377) (TEDIT.CHARBINDINGS.INVERT 18379 . 19658) (
+TEDIT.GET.ALL.CHARACTIONS 19660 . 21982) (TEDIT.CONFLICTING.CHARBINDINGS 21984 . 23294)) (23356 33411 
+(\TEDIT.KEY.CHARLOOKS 23366 . 24558) (\TEDIT.KEY.QUAD 24560 . 26653) (\TEDIT.DEFAULTSSEL 26655 . 27266
+) (\TEDIT.SETDEFAULT.FROM.SEL 27268 . 27945) (\TEDIT.KEY.SIZE 27947 . 29143) (\TEDIT.SUBSCRIPTSEL 
+29145 . 29348) (\TEDIT.SUPERSCRIPTSEL 29350 . 29554) (\TEDIT.KEY.TRANSFORM 29556 . 31553) (
+\TEDIT.KEY.OPENLINE 31555 . 32009) (\TEDIT.KEY.FAMILYN 32011 . 33409)) (33412 33701 (CAP-CASECODE 
+33422 . 33699)) (33735 37167 (\TEDIT.SHOWCARETLOOKS 33745 . 36260) (\TEDIT.DESCRIBEFONT 36262 . 37165)
+) (37198 52171 (\TEDIT.ONECHAR.BACKWARD 37208 . 38355) (\TEDIT.ONECHAR.FORWARD 38357 . 39593) (
+\TEDIT.ONELINE.UP 39595 . 42556) (\TEDIT.ONELINE.DOWN 42558 . 44215) (\TEDIT.ONELINE.MOVE 44217 . 
+46504) (\TEDIT.ONEWORD.BACKWARD 46506 . 47694) (\TEDIT.ONEWORD.FORWARD 47696 . 48883) (
+\TEDIT.LINE.BEGIN 48885 . 49964) (\TEDIT.LINE.END 49966 . 51203) (\TEDIT.DOCUMENT.BEGIN 51205 . 51564)
+ (\TEDIT.DOCUMENT.END 51566 . 52169)) (52172 55480 (\TEDIT.LINEDELETE.FORWARD 52182 . 53291) (
+\TEDIT.LINEDELETE.BACKWARD 53293 . 54432) (\TEDIT.LINEDELETE 54434 . 55478)) (55481 58009 (
+\TEDIT.KEY.NEST 55491 . 58007)) (58010 59292 (\TEDIT.KEY.WRAP 58020 . 59290)) (59383 67431 (
+\TEDIT.KEY.FIND 59393 . 64571) (\TEDIT.KEY.FIND.SEARCHSTRING 64573 . 65713) (\TEDIT.GET.TARGET.STRING 
+65715 . 67429)) (67462 70094 (\TEDIT.KEY.SUBSTITUTE 67472 . 67693) (\TEDIT.MANPAGE 67695 . 68942) (
+\TEDIT.CALL.ED 68944 . 69774) (\TEDIT.SELECT.ALL 69776 . 70092)) (70121 75811 (\TEDIT.CLIPBOARD 70131
+ . 71886) (\TEDIT.COPYTOCLIPBOARD 71888 . 72668) (\TEDIT.EXTRACTTOCLIPBOARD 72670 . 72865) (
+\TEDIT.WRITE.SEL 72867 . 75809)) (75977 88484 (\TEDIT.READTABLE 75987 . 76923) (
+\TEDIT.WORDBOUND.READTABLE 76925 . 79973) (TEDIT.GETSYNTAX 79975 . 81204) (TEDIT.SETSYNTAX 81206 . 
+82520) (TEDIT.GETFUNCTION 82522 . 83995) (TEDIT.SETFUNCTION 83997 . 86153) (TEDIT.WORDGET 86155 . 
+86416) (TEDIT.WORDSET 86418 . 87158) (TEDIT.ATOMBOUND.READTABLE 87160 . 88482)) (88585 95573 (
+TEDIT.BUTTONS.BUILD 88595 . 93841) (TEDIT.BUTTONBITMAP.FILL 93843 . 95571)) (98038 98626 (
+\TEDIT.TTCCLASS 98048 . 98624)))))
 STOP
diff --git a/library/tedit/TEDIT-FNKEYS.LCOM b/library/tedit/TEDIT-FNKEYS.LCOM
index 3682e535d8728aef6011cf8739901dcf672b7566..1e667affb04ed3b06499f9254224276ba8471ce8 100644
GIT binary patch
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diff --git a/library/tedit/TEDIT-RELEASENOTES.TEDIT b/library/tedit/TEDIT-RELEASENOTES.TEDIT
index de72aa2ac570949ee23beb39a3a5e8301050f438..319e68a5ea8ca7d66ba9b931f32f4bf7f8ab7e69 100644
GIT binary patch
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diff --git a/lispusers/TEDIT-PF-SEE b/lispusers/TEDIT-PF-SEE
index fef23770..89637de6 100644
--- a/lispusers/TEDIT-PF-SEE
+++ b/lispusers/TEDIT-PF-SEE
@@ -1,25 +1,23 @@
 (DEFINE-FILE-INFO PACKAGE "INTERLISP" READTABLE "INTERLISP" BASE 10)
 
-
(FILECREATED "29-Jul-2025 22:01:56" 
-{DSK}<Users>kaplan>Local>medley3.5>working-medley>lispusers>TEDIT-PF-SEE.;150
 11962  
+
(FILECREATED "12-Nov-2025 15:49:07" {WMEDLEY}<lispusers>TEDIT-PF-SEE.;156
 13422  
 
       :EDIT-BY rmk
 
-      :CHANGES-TO (FNS PF-TEDIT)
+      :CHANGES-TO (VARS TEDIT-PF-SEECOMS)
 
-      :PREVIOUS-DATE "29-Jul-2025 18:07:48" 
-{DSK}<Users>kaplan>Local>medley3.5>working-medley>lispusers>TEDIT-PF-SEE.;149)
+      :PREVIOUS-DATE "26-Sep-2025 22:53:59" {WMEDLEY}<lispusers>TEDIT-PF-SEE.;155)
 
 
 (PRETTYCOMPRINT TEDIT-PF-SEECOMS)
 
 (RPAQQ TEDIT-PF-SEECOMS

        [(FNS PF-TEDIT PF-TEDIT-FROM-TEXT)
-        (COMMANDS ts tf)
+        (COMMANDS ts tf tc tv tr)
         (FILES (SYSLOAD)
                REGIONMANAGER VERSIONDEFS)
-        (ALISTS (TEDIT.CHARACTIONS TEDIT-PF)
-               (TEDIT.CHARBINDINGS TEDIT-PF))
+        (ALISTS (TEDIT.CHARACTIONS :TEDIT-PF)
+               (TEDIT.CHARBINDINGS :TEDIT-PF))
         (P (MOVD? 'PFCOPYBYTES 'PFI.MAYBE.PP.DEFINITION)
            (MOVD? 'NILL (FUNCTION TEDIT.SETFUNCTION))
            (TEDIT.INSTALL.CHARBINDINGS))
@@ -29,7 +27,9 @@
 (DEFINEQ
 
 (PF-TEDIT

-  [LAMBDA (FN IFILES VERSION REPRINT)
                        (* ; "Edited 29-Jul-2025 22:01 by rmk")


+  [LAMBDA (ITEM IFILES VERSION REPRINT TYPE)
                 (* ; "Edited 23-Sep-2025 11:24 by rmk")


+                                                             (* ; "Edited 20-Sep-2025 08:56 by rmk")


+                                                             (* ; "Edited 29-Jul-2025 22:01 by rmk")


                                                              (* ; "Edited 29-Jun-2025 16:18 by rmk")


                                                              (* ; "Edited 14-Apr-2025 22:00 by rmk")


                                                              (* ; "Edited 26-Mar-2025 10:08 by rmk")


@@ -46,24 +46,24 @@
                                                              (* ; "Edited 12-Jan-2022 13:15 by rmk")


                                                              (* ; "Edited 30-Dec-2021 23:17 by rmk")

 
-    (* ;; "PF* to a read-only TEDIT window.  First argument is the function name, second if given is the input file.")

+    (* ;; "Shows ITEM of type TYPE in a scrollable read-only TEDIT window.  First argument is the item name, second if given is the input file.")

 
-    (* ;; "This uses PFCOPYBYTES so we see what it looks like on the file.  But some functions were not prettyprinted, so they appear as useless garbage.")

-
-    (* ;; "In that case, calling again with REPRINT=T will read and reprint.  And, invoking tf again with no arguments at all will also reprint the last function in the same window")

+    (* ;; "Calling again with REPRINT=T  (or ITEM=T) will read and reprint the same item.  And, calling again with no arguments at all will also reprint the last item in the same window")

 
     (SETQ IFILES (MKLIST IFILES))
-    (CL:WHEN (LISTP FN)
-        (SETQ FN (CAR FN)))
-    (SELECTQ FN
+    (CL:WHEN (INTERSECTION TYPE '(FNS FUNCTIONS))
+           (SETQ TYPE NIL))
+    (CL:WHEN (INTERSECTION TYPE '(FNS FUNCTIONS))
+           (SETQ TYPE NIL))
+    (SELECTQ ITEM
         ((t T NIL) 
              (SETQ REPRINT T)
-             (SETQ FN LASTWORD))
-        (if
 (VERSIONP FN)
-            then
 (SETQ IFILES (CONS FN))
-                 (SETQ FN LASTWORD)
-          else
 (SETQ LASTWORD FN)))
-    (CL:UNLESS FN (ERROR "No function to print"))
+             (SETQ ITEM LASTWORD))
+        (if
 (VERSIONP ITEM)
+            then
 (SETQ IFILES (CONS ITEM))
+                 (SETQ ITEM LASTWORD)
+          else
 (SETQ LASTWORD ITEM)))
+    (CL:UNLESS ITEM (ERROR "No function to print"))
     (CL:WHEN (AND (VERSIONP IFILES)
                   (NULL VERSION))
         (SETQ VERSION IFILES)
@@ -73,91 +73,107 @@
         (SETQ REPRINT T)
         [SETQ IFILES (LDIFFERENCE IFILES '(t T])
     (CL:UNLESS IFILES
-        (SETQ IFILES (WHEREIS FN '(FNS FUNCTIONS)
-                            T)))
+        [SETQ IFILES (OR (WHEREIS ITEM TYPE T)
+                         (AND (NULL TYPE)
+                              (WHEREIS ITEM 'MACROS T])
     (if
 IFILES
-        then
                                                 (* ; "skip compiled files")

+        then
 (for
 IFILE TSTREAM DEF TFPROP WINDOW inside
 IFILES
+                eachtime
 (SETQ IFILE (if
 (CL:IF (VERSIONP IFILE)
+                                             (FINDFILEVERSION (CAR (WHEREIS ITEM TYPE T))
+                                                    IFILE)
+                                             (FINDFILE IFILE T))
+                                       else
 (printout T "file " IFILE " not found." T)
+                                            (GO $$ITERATE))) unless
 (MEMB (FILENAMEFIELD IFILE
+                                                                                 'EXTENSION)
+                                                                          *COMPILED-EXTENSIONS*)
+                do
 (CL:UNLESS [SETQ DEF (CL:IF TYPE
+                                            (GETDEF ITEM TYPE IFILE 'NOERROR)
+                                            (OR (GETDEF ITEM 'FNS IFILE 'NOERROR)
+                                                (GETDEF ITEM 'FUNCTIONS IFILE 'NOERROR)
+                                                (GETDEF ITEM 'MACROS IFILE 'NOERROR)))]
+                       (printout T ITEM " not found on " IFILE "." T)
+                       (GO $$ITERATE)) 
 
-        (* ;; "Since we are creating readonly Tedits, try to keep the TTY where it is.")

+                   (* ;; "We found ITEM of TYPE on IFILE")

 
-        (for
 IFILE LOC TSTREAM ENV EXPR TFPROP WINDOW inside
 IFILES
-           eachtime
 (CL:IF (VERSIONP IFILE)
-                        (SETQ IFILE (FINDFILEVERSION (CAR (WHEREIS FN NIL T))
-                                           IFILE))) unless
 (MEMB (FILENAMEFIELD IFILE 'EXTENSION)
-                                                                 *COMPILED-EXTENSIONS*)
-           do

-           (SETQ LOC (FINDFNDEF FN IFILE))
-           (if
 (LISTP LOC)
-               then
 (SETQ TFPROP (LIST FN (CAR LOC)))
-                    [SETQ WINDOW (find
 W in
 (OPENWINDOWS)
-                                    suchthat
 (AND (EQUAL TFPROP (WINDOWPROP W 'TF))
-                                                  (TEXTSTREAM W T]
-                    [if
 (AND WINDOW (NOT REPRINT))
-                        then
 
-                             (* ;; 
-
               "If already an open PF window on this function in this file, just raise it to the top")

+                   (SETQ TFPROP (LIST ITEM TYPE IFILE))
+                   [SETQ WINDOW (find
 W in
 (OPENWINDOWS)
+                                   suchthat
 (AND (EQUAL TFPROP (WINDOWPROP W 'TF))
+                                                 (TEXTSTREAM W T]
+                   (CL:WHEN (AND WINDOW (NOT REPRINT))
 
-                             (TOTOPW WINDOW)
-                             (RETURN)
-                      else
 (CL:WITH-OPEN-FILE
-                            (ISTREAM (POP
 LOC)
-                                   :DIRECTION :INPUT)
-                            (SETQ ENV (LISPSOURCEFILEP ISTREAM))
-                            (SETFILEINFO ISTREAM 'FORMAT ENV)
-                            [SETQ TSTREAM (OPENTEXTSTREAM
-                                           NIL NIL `(PARABREAKCHARS NIL OPENWIDTH
-                                                           ,(TIMES TEDIT.SOURCE.LINELENGTH
-                                                                   (CHARWIDTH (CHARCODE SPACE)
-                                                                          DEFAULTFONT]
-                            (DSPFONT DEFAULTFONT TSTREAM)
-                            (PRINTOUT TSTREAM 5 "[From " (FULLNAME ISTREAM)
-                                   "]" T)
-                            (PRINT-READER-ENVIRONMENT ENV TSTREAM)
-                            (if
 REPRINT
-                                then
 (SETFILEPTR ISTREAM (POP
 LOC))
-                                     (SETQ EXPR (WITH-READER-ENVIRONMENT ENV (READ ISTREAM)))
-                                     (WITH-READER-ENVIRONMENT ENV
-                                         (if
 (EQ FN (CAR EXPR))
-                                             then
 (DSPFONT BOLDFONT TSTREAM)
-                                                  (PRINT FN TSTREAM)
-                                                  (DSPFONT DEFAULTFONT TSTREAM)
-                                                  (SETQ EXPR (CADR EXPR))
-                                                  (PRINTDEF EXPR 3 T NIL NIL TSTREAM)
-                                           elseif
 (EQ FN (CADR EXPR))
-                                             then
 
-                                                  (* ;; 
-
                                              "Presumably a DEFUN.  Print the CAR, boldface the cadr")

+                       (* ;; 
+
                     "If already an open  window on this item in this file, just raise it to the top")

 
-                                                  (PRINTOUT TSTREAM "(" .P2 (CAR EXPR)
-                                                         " " .FONT BOLDFONT .P2 (CADR EXPR)
-                                                         .FONT DEFAULTFONT " " .P2 (CADDR EXPR)
-                                                         T 3)
-                                                  (PRINTDEF (CDDDR EXPR)
-                                                         3 T T NIL TSTREAM)
-                                                  (PRIN3 ")" TSTREAM)
-                                           else
 (PRINTDEF EXPR 3 NIL NIL NIL TSTREAM)))
-                              else
 (PFI.MAYBE.PP.DEFINITION ISTREAM TSTREAM (POP
 LOC)
-                                          (POP
 LOC)))
-                            (TERPRI TSTREAM)
-                            [TEDIT TSTREAM (OR WINDOW 'TF)
-                                   NIL
-                                   `(READONLY T TITLE ,(CONCAT FN "  from " (FULLNAME ISTREAM))
-                                           ITEM-NAME
-                                           ,FN BOUNDTABLE ,(TEDIT.ATOMBOUND.READTABLE *READTABLE*]
+                       (TOTOPW WINDOW)
+                       (RETURN))
+                   [SETQ TSTREAM (OPENTEXTSTREAM NIL NIL
+                                        `(PARABREAKCHARS NIL OPENWIDTH
+                                                ,(TIMES TEDIT.SOURCE.LINELENGTH (CHARWIDTH
+                                                                                 (CHARCODE SPACE)
+                                                                                 DEFAULTFONT]
+                   (CL:WITH-OPEN-FILE (ISTREAM IFILE :DIRECTION :INPUT)
+                                                             (* ; "Print the reader environment")

+                          (PRINTOUT TSTREAM .FONT DEFAULTFONT 5)
+                          (PRINT-READER-ENVIRONMENT (LISPSOURCEFILEP ISTREAM)
+                                 TSTREAM))
+                   (DSPFONT DEFAULTFONT TSTREAM)
+                   [if
 (FNTYP DEF)
+                       then
 (PRINTOUT TSTREAM "(" .FONT BOLDFONT .P2 ITEM " " .FONT DEFAULTFONT)
+                            (PRINTDEF DEF 3 T NIL NIL TSTREAM)
+                            (PRIN3 ")" TSTREAM)
+                     elseif
 (SELECTQ (CAR DEF)
+                                ((CL:DEFUN DEFMACRO)         (* ; "Could look at :DEFINITION-NAME for definers in general, but we still have to pick out the arguments here (CADDR).")

+                                     (PRINTOUT TSTREAM "(" .P2 (CAR DEF)
+                                            " " .FONT BOLDFONT .P2 (CADR DEF)
+                                            .FONT DEFAULTFONT " " .P2 (CADDR DEF))
+                                     (PRINTDEF (CDDDR DEF)
+                                            3 T T NIL TSTREAM)
+                                     (PRIN3 ")" TSTREAM))
+                                (if
 (EQ ITEM (CAR DEF))
+                                    then
 (PRINTOUT TSTREAM "(" .FONT BOLDFONT .P2 ITEM .FONT 
+                                                DEFAULTFONT)
+                                         (PRINTDEF (CADR DEF)
+                                                3
+                                                (NOT TYPE)
+                                                NIL NIL TSTREAM)
+                                         (PRIN3 ")" TSTREAM)
+                                  elseif
 (EQ ITEM (CADR DEF))
+                                    then
 (PRINTOUT TSTREAM "(" .P2 (CAR DEF)
+                                                " " .FONT BOLDFONT .P2 ITEM .FONT DEFAULTFONT)
+                                         (PRINTDEF (CDDR DEF)
+                                                3
+                                                (NEQ TYPE 'VARS)
+                                                T NIL TSTREAM)
+                                         (PRIN3 ")" TSTREAM)
+                                  else
 (PRINTOUT TSTREAM .FONT BOLDFONT .P2 ITEM ":" .FONT 
+                                              DEFAULTFONT)
+                                       (PRINTDEF DEF 3 (NOT TYPE)
+                                              NIL NIL TSTREAM]
+                   (TERPRI TSTREAM) 
 
-                            (* ;; "The windowprop allows for reprinting as a window action, or reprinting from a command that can find and reuse the previous (presumably unprettied) window.")

+                   (* ;; "Since we are creating readonly Tedits, try to keep the TTY where it is.")

 
-                            (WINDOWPROP (WFROMDS TSTREAM)
-                                   'TF TFPROP)
-                            (TOTOPW (WFROMDS TSTREAM]
-             elseif
 (EQ LOC 'FILE.NOT.FOUND)
-               then
 (printout T "file " IFILE " not found." T)
-             else
 (printout T FN " not found on " LOC "." T)))
-        (SETQ *LAST-DF* FN)
-      else
 (PRINTOUT T FN " has no function definition" T])
+                   [TEDIT TSTREAM (OR WINDOW 'TF)
+                          NIL
+                          `(READONLY T TITLE ,(CONCAT ITEM "  from " IFILE)
+                                  ITEM-NAME
+                                  ,ITEM BOUNDTABLE ,(TEDIT.ATOMBOUND.READTABLE *READTABLE*] 
+
+                   (* ;; "The windowprop allows for reprinting as a window action, or reprinting from a command that can find and reuse the previous (presumably unprettied) window.")

+
+                   (WINDOWPROP (WFROMDS TSTREAM)
+                          'TF TFPROP)
+                   (TOTOPW (WFROMDS TSTREAM)))
+             (SETQ *LAST-DF* ITEM)
+      else
 (PRINTOUT T ITEM " has no " (CL:IF TYPE
+                                           (L-CASE TYPE)
+                                           "function")
+                  " definition" T])
 
 (PF-TEDIT-FROM-TEXT

-  [LAMBDA (TSTREAM TEXTOBJ SEL)
                              (* ; "Edited 14-Apr-2025 21:59 by rmk")


+  [LAMBDA (TSTREAM TEXTOBJ SEL)
                              (* ; "Edited 23-Sep-2025 23:28 by rmk")


+                                                             (* ; "Edited 14-Apr-2025 21:59 by rmk")


                                                              (* ; "Edited  7-Apr-2025 23:03 by rmk")


                                                              (* ; "Edited  5-Dec-2024 22:20 by rmk")


                                                              (* ; "Edited 26-Aug-2024 23:13 by rmk")

@@ -175,7 +191,7 @@
           ALLFILES)
          (if
 (EQ 0 (NCHARS FN))
              then
 (TEDIT.PROMPTPRINT TSTREAM "Please select a function to display" T)
-           elseif
 (SETQ ALLFILES (WHEREIS FN '(FNS FUNCTIONS)
+           elseif
 (SETQ ALLFILES (WHEREIS FN '(FNS FUNCTIONS MACROS)
                                         T))
              then
 (PF-TEDIT
 FN (CAR (OR (MEMB (FILENAMEFIELD THISFILE)
                                               ALLFILES)
@@ -197,12 +213,19 @@
 
 (DEFCOMMAND tf (FN FILE VERSION) (PF-TEDIT
 FN FILE VERSION))
 
+(DEFCOMMAND tc (ITEM FILE VERSION) (PF-TEDIT
 (FILECOMS ITEM)
+                                          FILE VERSION T 'VARS))
+
+(DEFCOMMAND tv (ITEM FILE VERSION) (PF-TEDIT
 ITEM FILE VERSION T 'VARS))
+
+(DEFCOMMAND tr (ITEM FILE VERSION) (PF-TEDIT
 ITEM FILE VERSION T 'RECORDS))
+
 (FILESLOAD (SYSLOAD)
        REGIONMANAGER VERSIONDEFS)
 
-(ADDTOVAR TEDIT.CHARACTIONS
 (TEDIT-PF PF-TEDIT-FROM-TEXT))
+(ADDTOVAR TEDIT.CHARACTIONS
 (:TEDIT-PF PF-TEDIT-FROM-TEXT))
 
-(ADDTOVAR TEDIT.CHARBINDINGS
 (TEDIT-PF "Meta,t" "Meta,T"))
+(ADDTOVAR TEDIT.CHARBINDINGS
 (:TEDIT-PF "Meta,t" "Meta,T"))
 
 (MOVD? 'PFCOPYBYTES 'PFI.MAYBE.PP.DEFINITION)
 
@@ -218,5 +241,5 @@
 (ADDTOVAR LAMA
 )
 )
 (DECLARE%: DONTCOPY
-  (FILEMAP (NIL (1080 10900 (PF-TEDIT 1090 . 9166) (PF-TEDIT-FROM-TEXT 9168 . 10898)))))
+  (FILEMAP (NIL (1018 12068 (PF-TEDIT 1028 . 10218) (PF-TEDIT-FROM-TEXT 10220 . 12066)))))
 STOP
diff --git a/lispusers/TEDIT-PF-SEE.LCOM b/lispusers/TEDIT-PF-SEE.LCOM
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zb{2?rs9GS_vkmoZgJm^&-NFS%tXrzd`wT?2f*Yp+A6CT8l(u$X-^uR2I<z)1Syf7;
zBZ!qPT#vCJ3PgEK=>ptNrE-eXLr_wJUCK{N<6XM9H`*D4gGObczCyX!W}copxe8T8
znZdR2<ut##=w$o82%QAC5e=rm2YF)2OR~F&PKoRDl|yU`JGc1Gk);^i_THYKnVD~M
z^<10jyuTr#3t4N={oCQE<@)1Kv^RKy3pYb^v+WK8yzT09bF$U`_VLeTKOp<_E1s;^
zT<X8}@RQyWqs#W}aQ@aTlep5BXgtU^qMXAcWfet&>qn_bAE=nncwRi=n|Vk;=Y~v3
z8gl1!LPGcz83LhpmS!DZEdxV%@3JV`BqD@MIFwkmlPWT^7u-ZnKQH%M^h!?E>)Y{a
zWCt#M=)756lZ82C1CjGUsui{p!@LHFn=8(bt9q?C4o4HBe!>Ywtep0wEC3e}7NkVm
zn|Jp&X@7HjbA3#Ar(AIZPdM9mzbBqh@PLt~tKuffTISPaPdfa>Q7Xrgefzf5$;1Mc
z*^3J^<iLr)E>Ia1`gVXOYP?V5EgG-W_&$yIup<4poUA5(Xghc}irt&Y)4;}aR-9*L
zBtty1lx^|OkRY<yF2Z1TmX}(&yudnH?Vz^6W(l1vV?CmBsUO~PzDniWD|keK3w6V2
zwX>SKf=NE-Rr~g8$E`+D73{sh6ZK;O2vd9UVBupf4`M1w?unb`Q(}vp^nxTs$X12m
zxoBe5al5`9yLbsheMsFqw%-=Yz=+}OcF&7KP%33JF&B@r?Klz$e7kRhp7;u(c({PS
z5?J7jYy)8e)_Shn{E<UE8`;QRWfUKj(}2oZr<)^U3CFsf<7WjkpDkr$s%YX&AhHr5
zH6{7(Z1Xghv>ILwg-Egw$PvmY%jHr&TN!xi(!}!yM+8CnxxLB)W^&?}Qlv@FmH2@I
zs4Q!o!kIA$@d74#a)rr2Ke>=V1l#P@C-VeI2LhRPPN{MWatBhD6LsVfATl!Z%a=}V
zUZ=8r{}C@oIS$-2d;F7Dg4OU;gl8g%Fo8#DesE#>GbX<O5v0%X{Rnz{|35vnBzU)y
zB66^^Yo7%Ce~<T)@a#0i0i|I%Zt{RH7a?6#fQgI)O`o$jk2#vytn@d>cV9v|mO!eA
cXqk%e|0z41+Iu=X$UHEW97-RS9QZx-Kd-@tsQ>@~

literal 5498
zcmb_g-D@M)6_;cu+bCOOdpAqEB+Ef0Ael&LKJ?k*Y9x);;~mY+&Wx;e+OpV|9jmLg
zx3-ryltL)&TPbuO3JrzA2HMbvvg_2)^r0es%R`}0{Wof8pWFV<y)&}xIHiRcqq%eL
zx#ym9?m546?qu6$$8yYk$Fj}5<#b%S<r%Fz#%+@_mJ^!3Z3SM2ZuzFs4vnULf!s6#
zlayjEozAj^7T7|wO&PV8Uwu5vt3|a$s#-59^-?)Q+054d!$-r>_JH>HC`0M*w}U%B
z_*(C9``~c-!N#M}#@@2MzqK)1ez-jtZNIA(O3UBfKX@?QdnYd`%cJ4pqsM|D`&eP#
z>*NE|EPPcd6>}H1#h#^lv4(9n54I;8Z-4L6!Qq>A!a^Z|hR~$bvu&Ezxlkx%Xs~ev
zP0!mRgev7s?te1)i#3oGrB+s{E(~w3)4{_Bl&-f{4Cl5P<U^OT9VeI=mZQ4on`@Ta
z3-WE8%6UVSYQ0#g>(wvz5cFCu9Xr-27K;ki+tqZ|F}fxNR=vK|bNZIk&U?Nanyqk&
zJkn{&^ATxz4kadNw8X(Sc~|AT2tJ-yus}xW5?NG~a$B}(I6W`las6(vL>($o7=)11
z#kfr7J<rFWLblt&vr5)vvPPz}2AWbNq=M12!;b5OOi-xf@KdFxYqw*nMj~tqf!p(2
zX2C}C*rszkTwzuiGf5QILMf4N3iJ4-Ol-W{=W&I?4!q#;xJvMqUd>Tz`GvVevOoV)
z0)JbJ<No|RJnApL%#ZQzK)mis;>{8Ducvw9Z@V|~CwR8f<No!YppHi`?Dpisedda&
zk@V<odZs6~9rqVw&Rb8PCtvT+_ve!RxzyI&Sc>g0zR2Phl8Kd1@t<1xbQb>$v$K)p
z#l@|w5b}9UHwJ6T)8nOa|J8V#8}T4kd@YsSx;mN}?mkaE!T9v)^Tdy*6<teSqWwf3
zR$LT#ZgFZd9~nHFiT$*eN~N&xV7K>Wq5gPk;ZN4UHyA`S*RDOg*`M#lu8ACUl^rvV
z#P<4ha%JkkhVs~M2$_+u#PLLQ`FKqnf;dn<)M<&5AtR4eZX%fFimf-sZ@ieCPh?AF
zoxa&!18#>@D%B`-L)YtLs8he=yWMs`CA~skFO<<JqOhcu&SurBjBzR<pk=fhq1$b`
zJ*Qom#5d`+617~XWrP?Oi7`|px?bWO@e%f<>t*1PRp=V)O|#&61yOCR&~hEpl^TiE
z0FCrwNxW#J)wDCRRw)w_pR_WbQltixc$rF?UKJySG_6b$21S-?D$J8C$g}B*V!T4F
zK{3IiRwc7SYN<r+z!M@=R-9ppRIM_hDln7nM_yMbFheeRUg(pe>5@Cov!<U1q*%V|
zbWI3QPy!>}6{I>#Re&~9K98ncS5u?;YEjr-0VqWp!ED!qJo8=*Y%m|T`F*Pm@KLo`
zAyLH3#C2O@l+Y6Os-#0Gkg-?+py4QGIWJ*<D>S=#d3Nk@D@2*su{T@eI`%s0h$$>Z
zITy5x7M2<2K4Ul>#~MrhG=)6FH=5wP!&(Onhm6)n2-QfhYUl@O=V1RKo?5L&nH-+F
ziZ?v5FF)0)LYZs^(2VzQWvE)F%r`n>&H1{6BFS~9gYs~O^hyk~iMd27k?=%5-4*GC
zv;o|=?0U;~1CxD4b))I}tlODnDHIhblElU6Yy*#K)CZ{&qr8X06M?*kdL(KP*E_B^
zT;}3)^hgzTiA$TshlR4H!J#t#EX=N%e!wYX#T<dCd~tcQjUep1ew%9vswcnZ+Z|DV
zP>@<~*Mrb@9+6`@EGJmXQS$FsXA-l<VCI9t&vtKarW%8pC&|r(@X6_~8^hD5jgzax
z%@={wn~7&P1jfAIU`|2#VPosn-wGrXGh;(Me$o7mu{k^51(TRFM8!D1&T<Sv5roau
zd&ch?;(aLG&ji#O%UJl%m6ek#*BV<l=Vv}x`FQt7E6I;nQh%_7^y6!dUCE!cgq-#F
zETOM>>Axl(AAQo0lWz}ZP&b~88>>m6>7TwNYSzL_?)=QjE4z#L=Z<TwkIL?xRR7se
zllK?Lj=Oj!@1MVN7l%UR&)vn7zYd@M#hp*xpMUn})#PgGkAhG92m^)-sh7o@5GQ`z
z>w@6kka!JjzV`gzZwlJ!@mtb(A%1MhZKTVh@lfjZ{9pfQTr#_Q32n0ClW4`%7IF?j
zt^;6VXh!l#EYd3ydli}H5po0JqG^3Hjf{?Hz_e&2N`wS^0E;AQs0`6)g05P*I7u)h
zc6m~xG#$_oHRG~pWc+62Ku6B%P5@7>s&w0o%2qF6MbSX1Xo;g5r)t#*a=6V3NCn>F
zcGK=STw~N?jk;#HDPWBAj1jM6nKtmeT9b^R#>u8&xBiOhn-;LDGD$*YDbRj0fdXT<
ztxgAgPK&QX00h1^1!!+MWh>P<dw~oJnZED(1dm3$cmNo!qG5B}EI4jh=rA&qh7u|P
zNYu7z_n_{nfH%uQ0VfUH*V~pKZKhVZtt6#Z0op{#4kyr&gxDe=ba&&B_V#J#@!r<a
z5SOsQ_Rer`$iocO0=(khqXVon;5wq6{l|OJT}?+bKScza#%R2Q+Z^Z$dIoX(==2<6
zc#umAn9d$in4_9b*$`?F>UhSP+Wu&t9vuw#j&Prfjm&eCg1gzhFveSz4BKW8;c^26
z1nhYL_He}tBD7Rd`)q-Zyv%K`3V4k0HAji}XA+5-hDfQ+MDxRe9L<g!A{|8*p1dyS
zfB#BjAP8qusbr%mNMhN-VoJi%w@-gLjbZcF6rjC*{1t0Ou&+w#Gpk84m~Tin@gl*D
zYY!YR`z%Cs*9$p!&^RDWqW((J&=|xQRt2?Q#Ib_YzYxbr!8kPG^Uunx)X0(L7v;Ts
zhub<r^^UGIrd=?C0<K1ubDK)#OOlQAHkN924S(G;9Fu?xmrzyoo;VJXq__ylWyoJX
zD}Ighn#(QhM}q1Tb2wlX^ea;lhaf`;UI;R(Rw?6+wl@y9>2Q0ry>&zzXTgo=8sK}u
zXyaYPR~EP7FkI(yDBLUbiM}6zh=9%do^kiCRCH>BvghvAlY=-5)Es3Yp=&tkt&a}r
zXa@utui0QduwA2_qqJ|{1|Wb5-&XuM|A9*Zm<{gM1LO!_?F)QBhRmXgGGIEJYy#78
zM8VlCraj80yY5>1>y*9Q!}S_^wp?$$xgMIlMNGT28P9>?+*-%7ZP4OurnKCgd)_F)
zd5I)iP7oqNh1#)ZJli%~w&9!j)`BK7G}jEf!LGoY7)O1Hm}EsM9Z~!>ZV$6YyDbNf
zZFCLD<0mU6UUT?MV++_Q9M66iK94;ccVSVFi4(HxNDYUw(X}ULghZHiH|CFkIi{xL
za*$WpCJ5;{0HPpX9W6f3CH%tQrC24DpQ);n1^j2zF*V<}!j-AUOvFFI`SE#Wc`U^7
zFNFX_fsFWp11Kx&Nk-rx$_F}Xl#h%M1OLQIf)U$BA0MJffOZfNdFO&Fcc3>ueL(Fg
z2^0LeIEBR`*u~+V1^nm7dz#NSbaA@Uv~vM3g9_<)S)O65OP0n#7X>7*&2+bqHr_hI
ir9lkB3`fhk2>-vb<HFjD*&*}bTymuUTXLi!ApIY-T@g(H

diff --git a/sources/AINTERRUPT b/sources/AINTERRUPT
index ce480721..83ca8e6f 100644
--- a/sources/AINTERRUPT
+++ b/sources/AINTERRUPT
@@ -1,12 +1,12 @@
 (DEFINE-FILE-INFO PACKAGE "INTERLISP" READTABLE "XCL" BASE 10)
 
-
(FILECREATED "31-Mar-2024 09:38:10" |{DSK}<home>larry>il>medley>sources>AINTERRUPT.;7|
 41133  
+
(FILECREATED "12-Nov-2025 11:10:44" |{WMEDLEY}<sources>AINTERRUPT.;4|
 41235  
 
-      :EDIT-BY "lmm"
+      :EDIT-BY |rmk|
 
       :CHANGES-TO (VARS AINTERRUPTCOMS)
 
-      :PREVIOUS-DATE "31-Mar-2024 09:27:57" |{DSK}<home>larry>il>medley>sources>AINTERRUPT.;5|)
+      :PREVIOUS-DATE "31-Mar-2024 09:38:10" |{WMEDLEY}<sources>AINTERRUPT.;3|)
 
 
 (PRETTYCOMPRINT AINTERRUPTCOMS)
@@ -22,8 +22,8 @@
                                            (5 ERROR MOUSE)
                                            (7 HELP T)
                                            (16 PRINTLEVEL)
-                                           (20 (CONTROL-T))
-                                           (127 RUBOUT T)))))
+                                           (20 (CONTROL-T))))))
+                                                             (* \; "RMK2025:  Removed (127 RUBOUT T)")

         (GLOBALVARS LISPINTERRUPTS)
         (COMS 
               (* |;;| "^T this is actually not very useful any more, and the percentages are wrong")

@@ -538,14 +538,17 @@
     (prog1 \\interruptable (setq \\interruptable flag))))
 )
 
-(RPAQ? LISPINTERRUPTS

-       '((LISPINTERRUPTS (2 BREAK MOUSE)
-                (4 RESET MOUSE)
-                (5 ERROR MOUSE)
-                (7 HELP T)
-                (16 PRINTLEVEL)
-                (20 (CONTROL-T))
-                (127 RUBOUT T))))
+(RPAQ? LISPINTERRUPTS
 '((LISPINTERRUPTS (2 BREAK MOUSE)
+                               (4 RESET MOUSE)
+                               (5 ERROR MOUSE)
+                               (7 HELP T)
+                               (16 PRINTLEVEL)
+                               (20 (CONTROL-T)))))
+
+
+
+(* \; "RMK2025:  Removed (127 RUBOUT T)")

+
 (DECLARE\: DOEVAL@COMPILE DONTCOPY
 
 (GLOBALVARS LISPINTERRUPTS)
@@ -803,10 +806,10 @@ DONTCOPY
 (INTCHAR
 T)
 )
 (DECLARE\: DONTCOPY
-  (FILEMAP (NIL (2924 29142 (INTCHAR 2934 . 7957) (INTERRUPTCHAR 7959 . 8233) (INTERRUPTED 8235 . 15814)
- (LISPINTERRUPTS 15816 . 16343) (\\DOHELPINTERRUPT 16345 . 17243) (\\DOHELPINTERRUPT1 17245 . 18643) (
-\\DOINTERRUPTHERE 18645 . 19825) (\\PROC.FINDREALFRAME 19827 . 20631) (\\SETPRINTLEVEL 20633 . 22585) 
-(\\SETRECLAIMMIN 22587 . 23460) (GETINTERRUPT 23462 . 24818) (CURRENTINTERRUPTS 24820 . 25030) (
-SETINTERRUPT 25032 . 27010) (RESET.INTERRUPTS 27012 . 28969) (INTERRUPTABLE 28971 . 29140)) (29562 
-35546 (CONTROL-T 29572 . 35013) (\\CONTROL-T.PRINTRATIO 35015 . 35544)))))
+  (FILEMAP (NIL (2939 29157 (INTCHAR 2949 . 7972) (INTERRUPTCHAR 7974 . 8248) (INTERRUPTED 8250 . 15829)
+ (LISPINTERRUPTS 15831 . 16358) (\\DOHELPINTERRUPT 16360 . 17258) (\\DOHELPINTERRUPT1 17260 . 18658) (
+\\DOINTERRUPTHERE 18660 . 19840) (\\PROC.FINDREALFRAME 19842 . 20646) (\\SETPRINTLEVEL 20648 . 22600) 
+(\\SETRECLAIMMIN 22602 . 23475) (GETINTERRUPT 23477 . 24833) (CURRENTINTERRUPTS 24835 . 25045) (
+SETINTERRUPT 25047 . 27025) (RESET.INTERRUPTS 27027 . 28984) (INTERRUPTABLE 28986 . 29155)) (29664 
+35648 (CONTROL-T 29674 . 35115) (\\CONTROL-T.PRINTRATIO 35117 . 35646)))))
 STOP
diff --git a/sources/AINTERRUPT.LCOM b/sources/AINTERRUPT.LCOM
index 49635ec48e652f2a7b8d4a83e20f910d9e0e16a9..0f244ef71b2962e22f0f72e07f2839db5b184e8f 100644
GIT binary patch
delta 419
zcmZpUy%{qhu-?!}*Dt?J*T}%gRKd{D%Fw{d#8gQ^Ln%2ww;(eoHANvmPeDncraIi$
z)y2m(veu?JzqBYhwb;(l(=Ws|C@3@_M9<o!MpJ=H$<P2{lo8Mz6Dv~-pw^_KRG48k
z3N@(}1x3YHKt^7ENk(Q~eL9etnOCEr<QD4VqkwFLo}M01cS>SOYDx_j(@m`mER;04
zG~7IWT%Chl9Yb7Q6qK;|#sshHH6YGcFflYTHdU~4b@2?*b&6D|Day^RQLu9MaP)I`
z4b~0u=bAj5(QL8<Bc~kRfH2<7#WYRXRucpiG_(|AtQC}ke7!-TYo(wNl$x7g1`JXS
rLnCvApin3O&=7?XO(ia%Qg<JJCr6(!$Dm+^&4*O~uxvi7wT&47^dEQ`

delta 453
zcmcZ^(;Pb?u-@2E*Eg|9*T}%gM8Uw)%Gkon&{#=9Ln%2ww;(eoHANvmPeDncrrIUg
zyVfQnKR4AbC$Xrg(k?T{E;ltLC$-Y9IKQ+gIkni%(bF%)H7F=FAVkmFyoO6tK?%)l
zBMU22L!ennMX4~;YvL7Zk~0$X(o>7AY7}bn@=G!@^U{H=%)A-}CC7k(U<G7D^z`(A
z`co21Qd4RaxUiXTrliTG;pXY%>Kx?i7~<+Oc@Cpg5UFlgFflYVHde55b@2?*b&3Sq
zl#`pQq+sRj;ppe?8mt@QKe?RI%+AQ%%G6v*fs53@F|E<$^7NaWz+$wSn<-uy7}|zL
t<_bZfPX3`G3L%<cprGOI<L~6?6XqBctiZK-x#}MlK2&v^7in#01^@-Ehy4Hm

diff --git a/sources/LLKEY b/sources/LLKEY
index 032f719b..c45b64c8 100644
--- a/sources/LLKEY
+++ b/sources/LLKEY
@@ -1,12 +1,12 @@
 (DEFINE-FILE-INFO PACKAGE "INTERLISP" READTABLE "INTERLISP" BASE 10)
 
-
(FILECREATED " 5-May-2025 20:57:08" {WMEDLEY}<sources>LLKEY.;15
 199508 
+
(FILECREATED "12-Nov-2025 16:40:50" {WMEDLEY}<sources>LLKEY.;18
 199501 
 
       :EDIT-BY rmk
 
-      :CHANGES-TO (VARS \MAIKOKEYACTIONS \KEYNAMES)
+      :CHANGES-TO (VARS \ORIGKEYACTIONS)
 
-      :PREVIOUS-DATE " 4-Apr-2025 17:10:10" {WMEDLEY}<sources>LLKEY.;11)
+      :PREVIOUS-DATE "12-Nov-2025 15:56:25" {WMEDLEY}<sources>LLKEY.;17)
 
 
 (PRETTYCOMPRINT LLKEYCOMS)
@@ -1591,7 +1591,7 @@
         (12 ("/" "?" NOLOCKSHIFT))
         (13 ("\" "|" NOLOCKSHIFT))
         (14 ("LF" "`" NOLOCKSHIFT))
-        (15 ("Bs" "Bs" NOLOCKSHIFT))
+        (15 ("Bs" "^W" NOLOCKSHIFT))
         (16 ("3" "#" NOLOCKSHIFT))
         (17 ("2" "@" NOLOCKSHIFT))
         (18 ("w" "W" LOCKSHIFT))
@@ -1771,7 +1771,7 @@
         (66 ("Function,G" "Function,g" NOLOCKSHIFT))
         (104 ("Function,H" "Function,h" NOLOCKSHIFT))
         (80 ("Function,I" "Function,i" NOLOCKSHIFT))
-        (13 ("^W" "^U" NOLOCKSHIFT))
+        (13 (RUBOUT "^U" NOLOCKSHIFT))
         (33 ("Esc" "Esc" NOLOCKSHIFT))
         (65 ("Esc" "Esc" NOLOCKSHIFT))
         (2 ("6" "^" NOLOCKSHIFT))
@@ -1851,9 +1851,9 @@
         (4 ("7" "'" NOLOCKSHIFT))
         (8 ("0" "0" NOLOCKSHIFT))
         (10 ("\" "_" NOLOCKSHIFT))
-        (13 ("^W" "^U" NOLOCKSHIFT))
+        (13 (RUBOUT "^U" NOLOCKSHIFT))
         (14 METADOWN . METAUP)
-        (15 ("Bs" "Bs" NOLOCKSHIFT))
+        (15 ("Bs" "^W" NOLOCKSHIFT))
         (17 ("2" "%"" NOLOCKSHIFT))
         (22 ("9" ")" NOLOCKSHIFT))
         (28 (":" "*" NOLOCKSHIFT))
@@ -3916,33 +3916,33 @@
 (ADDTOVAR LAMA
 CURSORPROP METASHIFT MOUSECHORDWAIT)
 )
 (DECLARE%: DONTCOPY
-  (FILEMAP (NIL (14602 21918 (BKSYSCHARCODE 14612 . 14961) (\CLEARSYSBUF 14963 . 15521) (\GETKEY 15523
- . 16698) (\NSYSBUFCHARS 16700 . 17442) (\SAVESYSBUF 17444 . 19053) (\SYSBUFP 19055 . 19359) (
-\GETSYSBUF 19361 . 19541) (\PUTSYSBUF 19543 . 20756) (\PEEKSYSBUF 20758 . 21916)) (23203 60761 (
-\KEYBOARDINIT 23213 . 24933) (\KEYBOARDEVENTFN 24935 . 29635) (\ALLOCLOCKED 29637 . 30227) (
-\SETIOPOINTERS 30229 . 34765) (\KEYBOARDOFF 34767 . 35181) (\KEYBOARDON 35183 . 35562) (\KEYHANDLER 
-35564 . 35695) (\KEYHANDLER1 35697 . 43143) (\RESETKEYBOARD 43145 . 44793) (\DOMOUSECHORDING 44795 . 
-48615) (\DOTRANSITIONS 48617 . 49294) (\DECODETRANSITION 49296 . 56709) (MOUSECHORDWAIT 56711 . 57375)
- (\TRACKCURSOR 57377 . 60759)) (95227 117100 (KEYACTION 95237 . 96090) (KEYACTIONTABLE 96092 . 97274) 
-(KEYBOARDTYPE 97276 . 98378) (RESETKEYACTION 98380 . 100139) (\KEYBOARD.MACHINE-SPECIFIC-KEYACTIONS 
-100141 . 102043) (\KEYACTION1 102045 . 112161) (KEYDOWNP 112163 . 112498) (KEYNUMBERP 112500 . 112698)
- (\KEYNAMETONUMBER 112700 . 113394) (\KEYNUMBERTONAME 113396 . 113586) (MODIFY.KEYACTIONS 113588 . 
-114449) (METASHIFT 114451 . 115395) (SHIFTDOWNP 115397 . 117098)) (117163 117459 (
-SETUP.OFFICE.KEYBOARD 117173 . 117457)) (120438 122150 (\INIT.KEYBOARD.STREAM 120448 . 122148)) (
-122415 138792 (\DOBUFFEREDTRANSITIONS 122425 . 137855) (\TIMER.INTERRUPTFRAME 137857 . 138582) (
-\PERIODIC.INTERRUPTFRAME 138584 . 138790)) (139046 143123 (\HARDCURSORUP 139056 . 140938) (
-\HARDCURSORPOSITION 140940 . 142976) (\HARDCURSORDOWN 142978 . 143121)) (143124 167184 (CURSOR.INIT 
-143134 . 146834) (\CURSORDESTINATION 146836 . 149154) (\SOFTCURSORUP 149156 . 154410) (
-\SOFTCURSORUPCURRENT 154412 . 161448) (\SOFTCURSORPOSITION 161450 . 162215) (\SOFTCURSORDOWN 162217 . 
-162925) (CURSORPROP 162927 . 163269) (GETCURSORPROP 163271 . 163459) (PUTCURSORPROP 163461 . 164616) (
-\CURSORBITSPERPIXEL 164618 . 166734) (\CURSORIMAGEPROPNAME 166736 . 166960) (\CURSORMASKPROPNAME 
-166962 . 167182)) (167185 185135 (CURSORCREATE 167195 . 169870) (CURSOR 169872 . 171684) (
-\CURSOR-VALID-P 171686 . 172773) (\CURSORUP 172775 . 174490) (\CURSORPOSITION 174492 . 177020) (
-\CURSORDOWN 177022 . 177255) (ADJUSTCURSORPOSITION 177257 . 177835) (CURSORPOSITION 177837 . 179379) (
-CURSORSCREEN 179381 . 180037) (CURSOREXIT 180039 . 181430) (FLIPCURSOR 181432 . 182558) (FLIPCURSORBAR
- 182560 . 183540) (LASTMOUSEX 183542 . 183796) (LASTMOUSEY 183798 . 184052) (CREATEPOSITION 184054 . 
-184260) (POSITIONP 184262 . 184546) (CURSORHOTSPOT 184548 . 185133)) (186373 187921 (GETMOUSESTATE 
-186383 . 187042) (\EVENTKEYS 187044 . 187919)) (194120 194916 (MACHINETYPE 194130 . 194530) (
-SETMAINTPANEL 194532 . 194914)) (194946 196085 (BEEPON 194956 . 195609) (BEEPOFF 195611 . 196083)) (
-196536 196799 (WITHOUT-INTERRUPTS 196546 . 196797)))))
+  (FILEMAP (NIL (14591 21907 (BKSYSCHARCODE 14601 . 14950) (\CLEARSYSBUF 14952 . 15510) (\GETKEY 15512
+ . 16687) (\NSYSBUFCHARS 16689 . 17431) (\SAVESYSBUF 17433 . 19042) (\SYSBUFP 19044 . 19348) (
+\GETSYSBUF 19350 . 19530) (\PUTSYSBUF 19532 . 20745) (\PEEKSYSBUF 20747 . 21905)) (23192 60750 (
+\KEYBOARDINIT 23202 . 24922) (\KEYBOARDEVENTFN 24924 . 29624) (\ALLOCLOCKED 29626 . 30216) (
+\SETIOPOINTERS 30218 . 34754) (\KEYBOARDOFF 34756 . 35170) (\KEYBOARDON 35172 . 35551) (\KEYHANDLER 
+35553 . 35684) (\KEYHANDLER1 35686 . 43132) (\RESETKEYBOARD 43134 . 44782) (\DOMOUSECHORDING 44784 . 
+48604) (\DOTRANSITIONS 48606 . 49283) (\DECODETRANSITION 49285 . 56698) (MOUSECHORDWAIT 56700 . 57364)
+ (\TRACKCURSOR 57366 . 60748)) (95220 117093 (KEYACTION 95230 . 96083) (KEYACTIONTABLE 96085 . 97267) 
+(KEYBOARDTYPE 97269 . 98371) (RESETKEYACTION 98373 . 100132) (\KEYBOARD.MACHINE-SPECIFIC-KEYACTIONS 
+100134 . 102036) (\KEYACTION1 102038 . 112154) (KEYDOWNP 112156 . 112491) (KEYNUMBERP 112493 . 112691)
+ (\KEYNAMETONUMBER 112693 . 113387) (\KEYNUMBERTONAME 113389 . 113579) (MODIFY.KEYACTIONS 113581 . 
+114442) (METASHIFT 114444 . 115388) (SHIFTDOWNP 115390 . 117091)) (117156 117452 (
+SETUP.OFFICE.KEYBOARD 117166 . 117450)) (120431 122143 (\INIT.KEYBOARD.STREAM 120441 . 122141)) (
+122408 138785 (\DOBUFFEREDTRANSITIONS 122418 . 137848) (\TIMER.INTERRUPTFRAME 137850 . 138575) (
+\PERIODIC.INTERRUPTFRAME 138577 . 138783)) (139039 143116 (\HARDCURSORUP 139049 . 140931) (
+\HARDCURSORPOSITION 140933 . 142969) (\HARDCURSORDOWN 142971 . 143114)) (143117 167177 (CURSOR.INIT 
+143127 . 146827) (\CURSORDESTINATION 146829 . 149147) (\SOFTCURSORUP 149149 . 154403) (
+\SOFTCURSORUPCURRENT 154405 . 161441) (\SOFTCURSORPOSITION 161443 . 162208) (\SOFTCURSORDOWN 162210 . 
+162918) (CURSORPROP 162920 . 163262) (GETCURSORPROP 163264 . 163452) (PUTCURSORPROP 163454 . 164609) (
+\CURSORBITSPERPIXEL 164611 . 166727) (\CURSORIMAGEPROPNAME 166729 . 166953) (\CURSORMASKPROPNAME 
+166955 . 167175)) (167178 185128 (CURSORCREATE 167188 . 169863) (CURSOR 169865 . 171677) (
+\CURSOR-VALID-P 171679 . 172766) (\CURSORUP 172768 . 174483) (\CURSORPOSITION 174485 . 177013) (
+\CURSORDOWN 177015 . 177248) (ADJUSTCURSORPOSITION 177250 . 177828) (CURSORPOSITION 177830 . 179372) (
+CURSORSCREEN 179374 . 180030) (CURSOREXIT 180032 . 181423) (FLIPCURSOR 181425 . 182551) (FLIPCURSORBAR
+ 182553 . 183533) (LASTMOUSEX 183535 . 183789) (LASTMOUSEY 183791 . 184045) (CREATEPOSITION 184047 . 
+184253) (POSITIONP 184255 . 184539) (CURSORHOTSPOT 184541 . 185126)) (186366 187914 (GETMOUSESTATE 
+186376 . 187035) (\EVENTKEYS 187037 . 187912)) (194113 194909 (MACHINETYPE 194123 . 194523) (
+SETMAINTPANEL 194525 . 194907)) (194939 196078 (BEEPON 194949 . 195602) (BEEPOFF 195604 . 196076)) (
+196529 196792 (WITHOUT-INTERRUPTS 196539 . 196790)))))
 STOP
diff --git a/sources/LLKEY.LCOM b/sources/LLKEY.LCOM
index aba3cfe8d386dc1fbab732dd63b15a700e970837..23744f5fc71dc4df5308ecbc7b7dc687de3ed60e 100644
GIT binary patch
delta 320
zcmaFc#`3I<WkR@!p^>g%ewnV3fsv_#p_!G5ft9Jj#B3c&3rz(sB{WH(yn*?|4eEi&
z;(B^|N(w27C8;Tx8jMV=ObwMZxis87eO#S`TpdGPT@=tw1z9<HEu$=lg@U1_rKy48
zWM4)l6aOGjcW>87N9Pbvf4^W&1*?D{*Dz22&|qB`pebmEm|B^dSs9s5UdJfIXukP0
z<FZpsap9Yb&m@X-1%*2KhlVI9#f47ZcujHh-^YJB*&t$*|GhQf<Wh1fRsza~PwqP-
xHTlR{k;$p=)cCpl{C)hLy@NeG-9j`q6(-Mm7s1M<<XW6OIpB%NX72Y%A^<^YT~q)7

delta 322
zcmaFX#`3m}WkR@!f~l@=Vx_K;fsv_#k%5(|xs`#%#B3c&Q%wafB?TiSNn<NxV=Dv8
zi5t{|kj3@%^pq4*5=&B3uxc<gQ_|$paP#zWbq;cM3~_Z)P{L|uwG4-;f}y3Qse#30
zUq&T+Uq?@Ge{a`FN9Pbvf4^Xb7$Dov(bqLtQ^6`A$TiH<KQvg^1!y49JQH2Vf+C0)
z49%?!4S;B3wG5--<^zn&PECIJU3hclnE>(0U9UAK2V57}%<|+dCy*mKndhA}tCCZ(
z64&JW-$f@ozH=7x^Y`(0_73*&bPLf027rc<<>ZGKBquA}XPvy|o%!T<kHseEz7gLn
I@!n4a0RQV@RsaA1

diff --git a/sources/SEDIT-COMMANDS b/sources/SEDIT-COMMANDS
index 873ddfa0..1a35d083 100644
--- a/sources/SEDIT-COMMANDS
+++ b/sources/SEDIT-COMMANDS
@@ -1,14 +1,13 @@
 (DEFINE-FILE-INFO PACKAGE (DEFPACKAGE SEDIT (USE LISP XCL)) READTABLE "XCL" BASE 10)
-
(IL:FILECREATED "15-Aug-2021 21:22:22" 
-IL:|{DSK}<Users>kaplan>Local>medley3.5>git-medley>sources>SEDIT-COMMANDS.;7|
 125181 
 
-      IL:|changes| IL:|to:|  (IL:VARS IL:SEDIT-COMMANDSCOMS)
+
(IL:FILECREATED "13-Nov-2025 00:19:24" IL:|{WMEDLEY}<sources>SEDIT-COMMANDS.;5|
 124301 
 
-      IL:|previous| IL:|date:| "14-Aug-2021 12:59:29" 
-IL:|{DSK}<Users>kaplan>Local>medley3.5>git-medley>sources>SEDIT-COMMANDS.;6|)
+      :EDIT-BY IL:|rmk|
 
+      :CHANGES-TO (IL:VARIABLES COMMAND-TABLE-SPEC)
+
+      :PREVIOUS-DATE "13-Nov-2025 00:14:31" IL:|{WMEDLEY}<sources>SEDIT-COMMANDS.;4|)
 
-; Copyright (c) 1986-1988, 1990-1991, 2018, 2021 by Venue & Xerox Corporation.
 
 (IL:PRETTYCOMPRINT IL:SEDIT-COMMANDSCOMS)
 
@@ -30,18 +29,18 @@ IL:|{DSK}<Users>kaplan>Local>medley3.5>git-medley>sources>SEDIT-COMMANDS.;6|)
                                                                IL:\; < > IL:\.))))
            (IL:FUNCTIONS 
 
-                  (IL:* IL:|;;| "pseudo-selections")

+                  (IL:* IL:|;;| "pseudo-selections")

 
                   PSEUDO-SELECTION-FROM-SELECTION COMPOSE-PSEUDO-SELECTION DECOMPOSE-PSEUDO-SELECTION
                   SELECTION-FROM-PSEUDO-SELECTION SELECT-PSEUDO-SEGMENT)
            
-           (IL:* IL:|;;| "user interface to adding new commands")

+           (IL:* IL:|;;| "user interface to adding new commands")

 
            (IL:FUNCTIONS ADD-COMMAND GET-SELECTION REPLACE-SELECTION RESET-COMMANDS DEFAULT-COMMANDS)
            (IL:VARIABLES DEFAULT-COMMAND-TABLE-SPEC FIRST-ADD-COMMAND FIRST-ADD-COMMAND-MENU-ENTRY)
            (IL:FUNCTIONS 
 
-                  (IL:* IL:|;;| "building help menu")

+                  (IL:* IL:|;;| "building help menu")

 
                   EQUALIZE-STRING-WIDTHS MINIMUM-STRING-WIDTH MAXIMUM-STRING-WIDTH)
            (IL:FUNCTIONS FIND-AND-DISPLAY-STRUCTURE FIND-AND-DISPLAY-STRUCTURE-BACKWARDS 
@@ -65,8 +64,8 @@ IL:|{DSK}<Users>kaplan>Local>medley3.5>git-medley>sources>SEDIT-COMMANDS.;6|)
 (IL:PUTPROPS IL:SEDIT-COMMANDS
 IL:FILETYPE
 :COMPILE-FILE)
 
 (IL:PUTPROPS IL:SEDIT-COMMANDS
 IL:MAKEFILE-ENVIRONMENT
 (:READTABLE "XCL" :PACKAGE
-                                                                      (DEFPACKAGE IL:SEDIT
-                                                                             (:USE IL:LISP IL:XCL))))
+                                                              (DEFPACKAGE IL:SEDIT (:USE IL:LISP 
+                                                                                         IL:XCL))))
 (IL:DECLARE\: IL:DOEVAL@COMPILE IL:DONTCOPY
 
 (IL:LOCALVARS . T)
@@ -78,10 +77,10 @@ IL:|{DSK}<Users>kaplan>Local>medley3.5>git-medley>sources>SEDIT-COMMANDS.;6|)
 
 (DEFPARAMETER COMMAND-TABLE-SPEC

 
-(IL:* IL:|;;;| "each entry in the COMMAND-TABLE-SPEC should be of the form: (<fn> <help menu entry> <normalize?> <key>+) where <fn> is an atom function name or a list whose car is the function name and the rest are the extra arguments (beyond context and charcode), <help menu entry> is a list of strings for the name, key-name, and help-string, <normalize?> is T if the caret should be normalized after this command, and <key>+ is one or more key specifier which can be passed to charcode (if non-list) or whose car is a termtable syntax (if a list).")

+(IL:* IL:|;;;| "each entry in the COMMAND-TABLE-SPEC should be of the form: (<fn> <help menu entry> <normalize?> <key>+) where <fn> is an atom function name or a list whose car is the function name and the rest are the extra arguments (beyond context and charcode), <help menu entry> is a list of strings for the name, key-name, and help-string, <normalize?> is T if the caret should be normalized after this command, and <key>+ is one or more key specifier which can be passed to charcode (if non-list) or whose car is a termtable syntax (if a list).")

 
    '(
-     (IL:* IL:|;;| "STRUCTURE CONTROL")

+     (IL:* IL:|;;| "STRUCTURE CONTROL")

 
      (INSERT-NULL-LIST NIL T (IL:LEFTPAREN))
      (CLOSE-LIST NIL NIL (IL:RIGHTPAREN))
@@ -104,7 +103,7 @@ IL:|{DSK}<Users>kaplan>Local>medley3.5>git-medley>sources>SEDIT-COMMANDS.;6|)
      ((INPUT-QUOTE
 COMMA-AT)
       NIL NIL "@")
 
-     (IL:* IL:|;;| "EDIT CONTROL")

+     (IL:* IL:|;;| "EDIT CONTROL")

 
      (DELETE-SELECTION
 NIL T IL:DEL)
      (BACKSPACE
 NIL T IL:BS "^A")
@@ -114,7 +113,7 @@ IL:|{DSK}<Users>kaplan>Local>medley3.5>git-medley>sources>SEDIT-COMMANDS.;6|)
      ((VERIFY-STRUCTURE NIL T NIL)
       NIL NIL "Meta,^L")
 
-     (IL:* IL:|;;| "COMPLETION")

+     (IL:* IL:|;;| "COMPLETION")

 
      ((COMPLETE :ABORT NIL)
       ("Abort" "M-A" "Complete this edit without installing changes.")
@@ -134,14 +133,14 @@ IL:|{DSK}<Users>kaplan>Local>medley3.5>git-medley>sources>SEDIT-COMMANDS.;6|)
       ("Done, Compile, & Close" "C-M-C" "Complete this edit, compile, and close the window.")
       NIL "Meta,^C")
 
-     (IL:* IL:|;;| "COMMANDS")

+     (IL:* IL:|;;| "COMMANDS")

 
      (NULL ("" "" "")
            NIL 0)
      (UNDO
 ("Undo" "M-U" "Undo the last change made.")
-            NIL "Meta,U" "Meta,u" "Function,^D" (UNDO
))
+           NIL "Meta,U" "Meta,u" "Function,^D" (UNDO
))
      (REDO
 ("Redo" "M-R" "Redo the last change undone.")
-            NIL "Meta,R" "Meta,r" "Function,Bs" (REDO
))
+           NIL "Meta,R" "Meta,r" "Function,Bs" (REDO
))
      (NULL ("" "" "")
            NIL 0)
      (FIND-OBJ
 ("Find" "M-F" "Find the current selection, or prompt for structure to Find.")
@@ -161,7 +160,7 @@ IL:|{DSK}<Users>kaplan>Local>medley3.5>git-medley>sources>SEDIT-COMMANDS.;6|)
      (EDIT-HELP
 ("Arglist" "M-H" "Show the argument list for the selected function.")
             NIL "Meta,H" "Meta,h" "Function,^A" (ARGLIST))
      (CONVERT-COMMENT
 ("Convert Comment" "M-;" 
-                                 "Convert the old style comments in the current selection.")
+                             "Convert the old style comments in the current selection.")
             NIL "Meta,;")
      (COMMENT-OUT-SELECTION
 NIL NIL "Meta,^;")
      (EDIT-SELECTION
 ("Edit" "M-O" "Edit the definition of the current selection.")
@@ -173,13 +172,13 @@ IL:|{DSK}<Users>kaplan>Local>medley3.5>git-medley>sources>SEDIT-COMMANDS.;6|)
             NIL "Meta,E" "Meta,e" (EVAL))
      (EXPAND
 ("Expand" "M-X" "Replace the current selection with its definition.")
             NIL "Meta,X" "Meta,x" IL:ESC "Function,^T" (EXPAND
))
-     (EXTRACT-CURRENT-SELECTION
 ("Extract" "M-/" 
-                                           "Extract one level of structure: unquote or unlist.")
+     (EXTRACT-CURRENT-SELECTION
 ("Extract" "M-/" "Extract one level of structure: unquote or unlist."
+                                       )
             NIL "Meta,/" (EXTRACT))
      (INSPECT-SELECTION
 ("Inspect" "M-I" "Inspect the current selection.")
             NIL "Meta,I" "Meta,i" (INSPECT))
      (JOIN
 ("Join" "M-J" "Join selected items together.")
-            NIL "Meta,J" "Meta,j" (JOIN
))
+           NIL "Meta,J" "Meta,j" (JOIN
))
      (MUTATE
 ("Mutate" "M-Z" "Prompt for a function to operate on the current selection.")
             NIL "Meta,Z" "Meta,z")
      ((PARENTHESIZE-CURRENT-SELECTION NIL)
@@ -209,7 +208,7 @@ IL:|{DSK}<Users>kaplan>Local>medley3.5>git-medley>sources>SEDIT-COMMANDS.;6|)
      (ADD-MENU
 ("Attach Menu" "M-M" "Attach a command menu.")
             NIL "Meta,M" "Meta,m")
 
-     (IL:* IL:|;;| "RANDOM: tells Meta-Space or Meta-Return to scroll to the selection, using the auto-scroller for free.")

+     (IL:* IL:|;;| "RANDOM: tells Meta-Space or Meta-Return to scroll to the selection, using the auto-scroller for free.")

 
      (TRUE NIL T "Meta, " "Meta,CR")))
 
@@ -269,19 +268,18 @@ IL:|{DSK}<Users>kaplan>Local>medley3.5>git-medley>sources>SEDIT-COMMANDS.;6|)
 (IL:RPAQ? MENUS
 NIL)
 (IL:DECLARE\: IL:EVAL@COMPILE 
 
-(IL:RPAQ WORD-DELIM-CHARS
 (IL:CHARCODE (IL:SPACE IL:CR IL:TAB - IL:{ IL:} IL:[ IL:] IL:\; < > 
-                                                  IL:\.)))
+(IL:RPAQ WORD-DELIM-CHARS
 (IL:CHARCODE (IL:SPACE IL:CR IL:TAB - IL:{ IL:} IL:[ IL:] IL:\; < > IL:\.)))
 
 
-(IL:CONSTANTS (WORD-DELIM-CHARS (IL:CHARCODE (IL:SPACE IL:CR IL:TAB -
 IL:{ IL:} IL:[ IL:] IL:\; <
-                                                    > IL:\.))))
+(IL:CONSTANTS (WORD-DELIM-CHARS (IL:CHARCODE (IL:SPACE IL:CR IL:TAB -
 IL:{ IL:} IL:[ IL:] IL:\; < > 
+                                                    IL:\.))))
 )
 
 (DEFUN PSEUDO-SELECTION-FROM-SELECTION
 (SEL)
 
-(IL:* IL:|;;;| "A pseudo-selection is either a node or a list of a node and two integers.  It's interpreted as the select-node, select-start, and select-end fields of a selection.")

+(IL:* IL:|;;;| "A pseudo-selection is either a node or a list of a node and two integers.  It's interpreted as the select-node, select-start, and select-end fields of a selection.")

 
-(IL:* IL:|;;;| "This function takes a selection and creates a pseudo selection from it.")

+(IL:* IL:|;;;| "This function takes a selection and creates a pseudo selection from it.")

 
    (COMPOSE-PSEUDO-SELECTION
 (IL:FETCH
 SELECT-NODE IL:OF
 SEL)
           (IL:FETCH
 SELECT-START IL:OF
 SEL)
@@ -290,9 +288,9 @@ IL:|{DSK}<Users>kaplan>Local>medley3.5>git-medley>sources>SEDIT-COMMANDS.;6|)
 
 (DEFUN COMPOSE-PSEUDO-SELECTION
 (NODE &OPTIONAL START END)
 
-(IL:* IL:|;;;| "A pseudo-selection is either a node or a list of a node and two integers.  It's interpreted as the select-node, select-start, and select-end fields of a selection.")

+(IL:* IL:|;;;| "A pseudo-selection is either a node or a list of a node and two integers.  It's interpreted as the select-node, select-start, and select-end fields of a selection.")

 
-(IL:* IL:|;;;| "This function takes the fields of a pseudo selection and hands back one.")

+(IL:* IL:|;;;| "This function takes the fields of a pseudo selection and hands back one.")

 
    (COND
       ((LISTP NODE)
@@ -308,9 +306,9 @@ IL:|{DSK}<Users>kaplan>Local>medley3.5>git-medley>sources>SEDIT-COMMANDS.;6|)
 
 (DEFUN DECOMPOSE-PSEUDO-SELECTION
 (PSEL)
 
-(IL:* IL:|;;;| "A pseudo-selection is either a node or a list of a node and two integers.  It's interpreted as the select-node, select-start, and select-end fields of a selection.")

+(IL:* IL:|;;;| "A pseudo-selection is either a node or a list of a node and two integers.  It's interpreted as the select-node, select-start, and select-end fields of a selection.")

 
-(IL:* IL:|;;;| "This function takes a pseudo selection and hands its fields back as values.")

+(IL:* IL:|;;;| "This function takes a pseudo selection and hands its fields back as values.")

 
    (IF (LISTP PSEL)
        (VALUES (FIRST PSEL)
@@ -322,9 +320,9 @@ IL:|{DSK}<Users>kaplan>Local>medley3.5>git-medley>sources>SEDIT-COMMANDS.;6|)
 
 (DEFUN SELECTION-FROM-PSEUDO-SELECTION
 (PSEL &OPTIONAL SEL)
 
-(IL:* IL:|;;;| "A pseudo-selection is either a node or a list of a node and two integers.  It's interpreted as the select-node, select-start, and select-end fields of a selection.")

+(IL:* IL:|;;;| "A pseudo-selection is either a node or a list of a node and two integers.  It's interpreted as the select-node, select-start, and select-end fields of a selection.")

 
-(IL:* IL:|;;;| "This function takes a pseudo-selection and constructs the corresponding selection.  If you don't hand it a selection structure, it conses one.")

+(IL:* IL:|;;;| "This function takes a pseudo-selection and constructs the corresponding selection.  If you don't hand it a selection structure, it conses one.")

 
    (UNLESS SEL
        (SETF SEL (IL:CREATE
 EDIT-SELECTION)))
@@ -350,13 +348,13 @@ IL:|{DSK}<Users>kaplan>Local>medley3.5>git-medley>sources>SEDIT-COMMANDS.;6|)
 (DEFUN ADD-COMMAND
 (KEY-CODE FORM &OPTIONAL SCROLL? KEY-NAME COMMAND-NAME HELP-STRING)
    (WHEN FIRST-ADD-COMMAND
 
-       (IL:* IL:|;;| "cache the command-table-spec so the user can undo this!")

+       (IL:* IL:|;;| "cache the command-table-spec so the user can undo this!")

 
        (SETQ DEFAULT-COMMAND-TABLE-SPEC (COPY-TREE COMMAND-TABLE-SPEC))
        (SETQ FIRST-ADD-COMMAND NIL))
    (WHEN (AND KEY-NAME COMMAND-NAME FIRST-ADD-COMMAND-MENU-ENTRY)
 
-       (IL:* IL:|;;| "add another separation line to the help menu.")

+       (IL:* IL:|;;| "add another separation line to the help menu.")

 
        (NCONC COMMAND-TABLE-SPEC (LIST (LIST 'NULL (LIST "-----" "" "")
                                              NIL 0)))
@@ -366,8 +364,8 @@ IL:|{DSK}<Users>kaplan>Local>medley3.5>git-medley>sources>SEDIT-COMMANDS.;6|)
                                          SCROLL? KEY-CODE)))
    (OR COMMAND-NAME FORM))
 
-(DEFUN GET-SELECTION
 (CONTEXT)
               (IL:* IL:\; "Edited 23-Apr-2018 18:11 by rmk:")


-                                                     (IL:* IL:\; "Edited 22-Apr-2018 16:48 by rmk:")

+(DEFUN GET-SELECTION
 (CONTEXT)
                       (IL:* IL:\; "Edited 23-Apr-2018 18:11 by rmk:")


+                                                     (IL:* IL:\; "Edited 22-Apr-2018 16:48 by rmk:")

    (LET* ((SELECTION (IL:FETCH
 SELECTION IL:OF
 CONTEXT))
           (NODE (IL:FETCH
 SELECT-NODE IL:OF
 SELECTION))
           (CHARS (IL:FETCH
 STRUCTURE IL:OF
 NODE))
@@ -377,7 +375,7 @@ IL:|{DSK}<Users>kaplan>Local>medley3.5>git-medley>sources>SEDIT-COMMANDS.;6|)
           (TYPE (IL:FETCH
 SELECT-TYPE IL:OF
 SELECTION))
           NOT-ALL-SELECTED)
 
-         (IL:* IL:|;;| "All except NODE are needed for the atom/string cases")

+         (IL:* IL:|;;| "All except NODE are needed for the atom/string cases")

 
          (COND
             ((NULL NODE)
@@ -388,7 +386,7 @@ IL:|{DSK}<Users>kaplan>Local>medley3.5>git-medley>sources>SEDIT-COMMANDS.;6|)
                        (START :SUB-LIST)
                        (T T))))
             (T 
-               (IL:* IL:|;;| "RMK: a single character-atom or a substring of characters in an atom or string. Full multicharacter atoms are structures.  Code copies from COPY-SELECTION-LITATOM")

+               (IL:* IL:|;;| "RMK: a single character-atom or a substring of characters in an atom or string. Full multicharacter atoms are structures.  Code copies from COPY-SELECTION-LITATOM")

 
                (WHEN (IL:TYPE?
 BROKEN-ATOM CHARS)
                    (IL:SETQ CHARS (IL:FETCH
 ATOM-CHARS IL:OF
 CHARS)))
@@ -396,7 +394,7 @@ IL:|{DSK}<Users>kaplan>Local>medley3.5>git-medley>sources>SEDIT-COMMANDS.;6|)
                                            (IL:NCHARS STRING))
                                     (IL:NEQ START 1)))
 
-                   (IL:* IL:|;;| "some subset of the atom/string has been selected")

+                   (IL:* IL:|;;| "some subset of the atom/string has been selected")

 
                    (IL:SETQ NOT-ALL-SELECTED T))
                (VALUES (IL:MKSTRING (IF NOT-ALL-SELECTED
@@ -428,16 +426,14 @@ IL:|{DSK}<Users>kaplan>Local>medley3.5>git-medley>sources>SEDIT-COMMANDS.;6|)
          (PENDING-DELETE POINT SELECTION)
          (INSERT POINT CONTEXT (COPY-LIST NEW-NODES))
 
-         (IL:* IL:|;;| "try to select the stuff that was just inserted.")

+         (IL:* IL:|;;| "try to select the stuff that was just inserted.")

 
          (SELECT-PSEUDO-SEGMENT
 CONTEXT (COMPOSE-PSEUDO-SELECTION
 NEW-NODES))))
 
 (DEFUN RESET-COMMANDS
 ()
    (LET ((COMMANDS (CREATE-COMMAND-TABLE
 COMMAND-TABLE-SPEC)))
-        (IL:REPLACE
 (EDIT-ENV COMMAND-TABLE) IL:OF
 LISP-EDIT-ENVIRONMENT IL:WITH

-                                                                                 (FIRST COMMANDS))
-        (IL:REPLACE
 (EDIT-ENV HELP-MENU) IL:OF
 LISP-EDIT-ENVIRONMENT IL:WITH
 (SECOND
-                                                                                          COMMANDS)))
+        (IL:REPLACE
 (EDIT-ENV COMMAND-TABLE) IL:OF
 LISP-EDIT-ENVIRONMENT IL:WITH
 (FIRST COMMANDS))
+        (IL:REPLACE
 (EDIT-ENV HELP-MENU) IL:OF
 LISP-EDIT-ENVIRONMENT IL:WITH
 (SECOND COMMANDS)))
    T)
 
 (DEFUN DEFAULT-COMMANDS
 ()
@@ -456,13 +452,12 @@ IL:|{DSK}<Users>kaplan>Local>medley3.5>git-medley>sources>SEDIT-COMMANDS.;6|)
    "Used in Add-Command to signal the first time a new command is added to the middle button menu, so that the user entries can be separated from the default entries"
 )
 
-(DEFUN EQUALIZE-STRING-WIDTHS
 (STRING-LIST FONT &OPTIONAL PRIN2? (DESIRED-WIDTH (
-
                                                                               MAXIMUM-STRING-WIDTH

-                                                                                     STRING-LIST FONT
-                                                                                     PRIN2?))
-                                         (PAD-CHAR #\Space))
+(DEFUN EQUALIZE-STRING-WIDTHS
 (STRING-LIST FONT &OPTIONAL PRIN2? (DESIRED-WIDTH (MAXIMUM-STRING-WIDTH

+                                                                                 STRING-LIST FONT 
+                                                                                 PRIN2?))
+                                     (PAD-CHAR #\Space))
 
-(IL:* IL:|;;;| "Increase the width of all the strings in STRING-LIST to DESIRED-WIDTH by padding them on the right with PAD-CHAR.")

+(IL:* IL:|;;;| "Increase the width of all the strings in STRING-LIST to DESIRED-WIDTH by padding them on the right with PAD-CHAR.")

 
    (DO ((PAD-CHAR-WIDTH (IL:CHARWIDTH (CHAR-CODE PAD-CHAR)
                                FONT))
@@ -488,7 +483,7 @@ IL:|{DSK}<Users>kaplan>Local>medley3.5>git-medley>sources>SEDIT-COMMANDS.;6|)
 
 (DEFUN FIND-AND-DISPLAY-STRUCTURE
 (CONTEXT STR &OPTIONAL SCOPE START WRAP?)
 
-(IL:* IL:|;;;| "Find structure and display it by selecting it (point after) and normalizing the selection in the window.  SCOPE defaults to the root structure of the CONTEXT.  The WRAP? flag says to wrap failing searches around and try them again (i.e., ignore start and try again).")

+(IL:* IL:|;;;| "Find structure and display it by selecting it (point after) and normalizing the selection in the window.  SCOPE defaults to the root structure of the CONTEXT.  The WRAP? flag says to wrap failing searches around and try them again (i.e., ignore start and try again).")

 
    (LET* ((PROMPTWINDOW (GET-PROMPT-WINDOW CONTEXT))
           (TOP (SUBNODE 1 (IL:FETCH
 ROOT IL:OF
 CONTEXT)))
@@ -503,7 +498,7 @@ IL:|{DSK}<Users>kaplan>Local>medley3.5>git-medley>sources>SEDIT-COMMANDS.;6|)
 
 (DEFUN FIND-AND-DISPLAY-STRUCTURE-BACKWARDS
 (CONTEXT STR &OPTIONAL SCOPE END WRAP?)
 
-(IL:* IL:|;;;| "Like find-and-display-structure, but searches backwards")

+(IL:* IL:|;;;| "Like find-and-display-structure, but searches backwards")

 
    (LET* ((PROMPTWINDOW (GET-PROMPT-WINDOW CONTEXT))
           (TOP (SUBNODE 1 (IL:FETCH
 ROOT IL:OF
 CONTEXT)))
@@ -518,7 +513,7 @@ IL:|{DSK}<Users>kaplan>Local>medley3.5>git-medley>sources>SEDIT-COMMANDS.;6|)
 
 (DEFUN FIND-AND-DISPLAY-SUBSTRUCTURE
 (CONTEXT STR &OPTIONAL SCOPE START WRAP?)
 
-(IL:* IL:|;;;| "Find substructure and display it by selecting it (pending delete) and normalizing the selection in the window.  SCOPE defaults to the root structure of the CONTEXT.  The WRAP? flag says to wrap failing searches around and try them again (i.e., ignore start and try again).")

+(IL:* IL:|;;;| "Find substructure and display it by selecting it (pending delete) and normalizing the selection in the window.  SCOPE defaults to the root structure of the CONTEXT.  The WRAP? flag says to wrap failing searches around and try them again (i.e., ignore start and try again).")

 
    (LET* ((PROMPTWINDOW (GET-PROMPT-WINDOW CONTEXT))
           (TOP (SUBNODE 1 (IL:FETCH
 ROOT IL:OF
 CONTEXT)))
@@ -533,7 +528,7 @@ IL:|{DSK}<Users>kaplan>Local>medley3.5>git-medley>sources>SEDIT-COMMANDS.;6|)
 
 (DEFUN FIND-AND-DISPLAY-SUBSTRUCTURE-BACKWARDS
 (CONTEXT STR &OPTIONAL SCOPE END WRAP?)
 
-(IL:* IL:|;;;| "Like find-and-display-substructure but searches backwards")

+(IL:* IL:|;;;| "Like find-and-display-substructure but searches backwards")

 
    (LET* ((PROMPTWINDOW (GET-PROMPT-WINDOW CONTEXT))
           (TOP (SUBNODE 1 (IL:FETCH
 ROOT IL:OF
 CONTEXT)))
@@ -548,7 +543,7 @@ IL:|{DSK}<Users>kaplan>Local>medley3.5>git-medley>sources>SEDIT-COMMANDS.;6|)
 
 (DEFUN FIND-NTH-STRUCTURE
 (CONTEXT CHARCODE STRUCTURE N)
 
-(IL:* IL:|;;;| "Find the Nth occurance of Structure in this edit, always starting from the beginning.  This function is used as an external command to set the selection to a desired structure.  Find, select, and normalize.")

+(IL:* IL:|;;;| "Find the Nth occurance of Structure in this edit, always starting from the beginning.  This function is used as an external command to set the selection to a desired structure.  Find, select, and normalize.")

 
    (LET ((TOP (SUBNODE 1 (IL:FETCH
 ROOT IL:OF
 CONTEXT))))
         (DO ((M 1 (+ M 1))
@@ -561,13 +556,13 @@ IL:|{DSK}<Users>kaplan>Local>medley3.5>git-medley>sources>SEDIT-COMMANDS.;6|)
 
 (DEFUN FIND-NODE-SUBSTRUCTURE
 (STR STRLEN NODE &OPTIONAL START END CONTINUATION?)
 
-(IL:* IL:|;;;| "STR is a list of structures of length STRLEN.  NODE, together with START and END (which are subnode indices), is taken to indicate a subtree.  We return a pseudo-selection which selects the first sequence of sibling nodes in that subtree whose successive structures match the successive elements of STR.")

+(IL:* IL:|;;;| "STR is a list of structures of length STRLEN.  NODE, together with START and END (which are subnode indices), is taken to indicate a subtree.  We return a pseudo-selection which selects the first sequence of sibling nodes in that subtree whose successive structures match the successive elements of STR.")

 
-(IL:* IL:|;;;| "\"First\" here is taken to mean \"first in linearization order\", so we have to do a careful recursion which: (1a) recursively checks the subtree rooted at the START subnode of NODE (default the first), (1b) checks if the START subnode starts a matching sibling sequence, (2a) recursively checks the subtree rooted at the START+1 subnode of NODE,  (2b) checks if the START+1 subnode starts a matching sibling sequence, . . ., (Na) recusively checks the subtree rooted at the END subnode of NODE (default the last), (Nb) checks if the END subnode starts a matching sibling sequence [note that such a sequence could be only 1 node long since END is the right end of the subtree being checked].")

+(IL:* IL:|;;;| "\"First\" here is taken to mean \"first in linearization order\", so we have to do a careful recursion which: (1a) recursively checks the subtree rooted at the START subnode of NODE (default the first), (1b) checks if the START subnode starts a matching sibling sequence, (2a) recursively checks the subtree rooted at the START+1 subnode of NODE,  (2b) checks if the START+1 subnode starts a matching sibling sequence, . . ., (Na) recusively checks the subtree rooted at the END subnode of NODE (default the last), (Nb) checks if the END subnode starts a matching sibling sequence [note that such a sequence could be only 1 node long since END is the right end of the subtree being checked].")

 
-(IL:* IL:|;;;| "N.B. It might seem that, to get true linearization order, we should check to see if a node starts a matching sibling sequence before we check its subtree.  But since node structures can not be circular, we know that if a match is found in the subtree  below a node then that node could not have started a matching sequence.")

+(IL:* IL:|;;;| "N.B. It might seem that, to get true linearization order, we should check to see if a node starts a matching sibling sequence before we check its subtree.  But since node structures can not be circular, we know that if a match is found in the subtree  below a node then that node could not have started a matching sequence.")

 
-(IL:* IL:|;;;| "The CONTINUATION? flag means that we are continuing a search that has already recursively checked the START subnode, so we skip that particular recursion.  This generally happens when we are working our way up and to the right in some subtree which has already been partially checked.")

+(IL:* IL:|;;;| "The CONTINUATION? flag means that we are continuing a search that has already recursively checked the START subnode, so we skip that particular recursion.  This generally happens when we are working our way up and to the right in some subtree which has already been partially checked.")

 
    (SETF START (OR START 1))
    (LET* ((SUBNODES (IL:FETCH
 SUB-NODES IL:OF
 NODE))
@@ -593,7 +588,7 @@ IL:|{DSK}<Users>kaplan>Local>medley3.5>git-medley>sources>SEDIT-COMMANDS.;6|)
 
 (DEFUN FIND-NODE-SUBSTRUCTURE-BACKWARDS
 (STR STRLEN NODE &OPTIONAL START END CONTINUATION?)
 
-(IL:* IL:|;;;| "Like find-node-substructure but searches in reverse linearization order.")

+(IL:* IL:|;;;| "Like find-node-substructure but searches in reverse linearization order.")

 
    (LET* ((SUBNODES (IL:FETCH
 SUB-NODES IL:OF
 NODE))
           (SUBLENGTH (FIRST SUBNODES)))
@@ -610,8 +605,8 @@ IL:|{DSK}<Users>kaplan>Local>medley3.5>git-medley>sources>SEDIT-COMMANDS.;6|)
              ((OR (NULL SUBS)
                   (AND START (< INDEX START)))
               NIL)
-           (WHEN (AND DOSUBS? (SETF MATCH (FIND-NODE-SUBSTRUCTURE-BACKWARDS
 STR STRLEN
-                                                 (FIRST SUBS))))
+           (WHEN (AND DOSUBS? (SETF MATCH (FIND-NODE-SUBSTRUCTURE-BACKWARDS
 STR STRLEN (FIRST SUBS)))
+                      )
                  (RETURN MATCH))
            (UNLESS (OR (< STARTINDEX 1)
                        (MISMATCH STR SUBS :END2 STRLEN :TEST
@@ -621,7 +616,7 @@ IL:|{DSK}<Users>kaplan>Local>medley3.5>git-medley>sources>SEDIT-COMMANDS.;6|)
 
 (DEFUN FIND-OBJ
 (CONTEXT &OPTIONAL CHARCODE FIND-STRING BACKWARDS?)
 
-(IL:* IL:|;;;| "Find either the passed structure, the selected structure, or a prompted-for structure.  The search direction is forward unless BACKWARDS? is specified.")

+(IL:* IL:|;;;| "Find either the passed structure, the selected structure, or a prompted-for structure.  The search direction is forward unless BACKWARDS? is specified.")

 
    (CLOSE-OPEN-NODE CONTEXT)
    (LET ((SELECTION (IL:|fetch|
 SELECTION IL:|of|
 CONTEXT))
@@ -632,7 +627,7 @@ IL:|{DSK}<Users>kaplan>Local>medley3.5>git-medley>sources>SEDIT-COMMANDS.;6|)
                  (EQ (IL:|fetch|
 SELECT-TYPE IL:|of|
 SELECTION)
                      'STRUCTURE))
 
-            (IL:* IL:|;;| "there is a non-string selection")

+            (IL:* IL:|;;| "there is a non-string selection")

 
             (IF BACKWARDS?
                 (FIND-SELECTION-BACKWARDS
 CONTEXT WRAP?)
@@ -644,7 +639,7 @@ IL:|{DSK}<Users>kaplan>Local>medley3.5>git-medley>sources>SEDIT-COMMANDS.;6|)
 
 (DEFUN FIND-SELECTION
 (CONTEXT &OPTIONAL WRAP?)
 
-(IL:* IL:|;;;| "Find the next match of the current selection and display it.")

+(IL:* IL:|;;;| "Find the next match of the current selection and display it.")

 
    (LET* ((PROMPTWINDOW (GET-PROMPT-WINDOW CONTEXT))
           (SELECTION (IL:|fetch|
 SELECTION IL:|of|
 CONTEXT))
@@ -652,32 +647,31 @@ IL:|{DSK}<Users>kaplan>Local>medley3.5>git-medley>sources>SEDIT-COMMANDS.;6|)
           (START (IL:|fetch|
 SELECT-START IL:|of|
 SELECTION)))
          (IF START
 
-             (IL:* IL:|;;| "a sibling sequence is selected, look for a matching sequence after it")

+             (IL:* IL:|;;| "a sibling sequence is selected, look for a matching sequence after it")

 
              (FIND-AND-DISPLAY-SUBSTRUCTURE
 CONTEXT (STRUCTURE-FROM-SELECTION
 SELECTION)
                     NIL
                     (LIST NODE (1+ START))
                     WRAP?)
 
-             (IL:* IL:|;;| "a node is selected, look for a matching node ")

+             (IL:* IL:|;;| "a node is selected, look for a matching node ")

 
              (IF (SETF START (NEXT-NODE NODE T))
 
-                 (IL:* IL:|;;| "start the search with the following node")

+                 (IL:* IL:|;;| "start the search with the following node")

 
                  (FIND-AND-DISPLAY-STRUCTURE
 CONTEXT (STRUCTURE-FROM-SELECTION
 SELECTION)
                         NIL START WRAP?)
 
-                 (IL:* IL:|;;| "there are no more nodes, either wrap or give up")

+                 (IL:* IL:|;;| "there are no more nodes, either wrap or give up")

 
                  (IF WRAP?
-                     (FIND-AND-DISPLAY-STRUCTURE
 CONTEXT (STRUCTURE-FROM-SELECTION
 SELECTION)
-                            )
+                     (FIND-AND-DISPLAY-STRUCTURE
 CONTEXT (STRUCTURE-FROM-SELECTION
 SELECTION))
                      (FORMAT PROMPTWINDOW "~%At end; no more structure to search."))))))
 
 (DEFUN FIND-SELECTION-BACKWARDS
 (CONTEXT &OPTIONAL WRAP?)
 
-(IL:* IL:|;;;| "Find the previous match of the current selection and display it.")

+(IL:* IL:|;;;| "Find the previous match of the current selection and display it.")

 
    (LET* ((PROMPTWINDOW (GET-PROMPT-WINDOW CONTEXT))
           (SELECTION (IL:|fetch|
 SELECTION IL:|of|
 CONTEXT))
@@ -686,36 +680,34 @@ IL:|{DSK}<Users>kaplan>Local>medley3.5>git-medley>sources>SEDIT-COMMANDS.;6|)
                    (IL:|fetch|
 SELECT-END IL:|of|
 SELECTION))))
          (IF END
 
-             (IL:* IL:|;;| "a sibling sequence is selected, look for a matching sequence before it")

+             (IL:* IL:|;;| "a sibling sequence is selected, look for a matching sequence before it")

 
-             (FIND-AND-DISPLAY-SUBSTRUCTURE-BACKWARDS
 CONTEXT (STRUCTURE-FROM-SELECTION

-                                                                   SELECTION)
+             (FIND-AND-DISPLAY-SUBSTRUCTURE-BACKWARDS
 CONTEXT (STRUCTURE-FROM-SELECTION
 SELECTION)
                     NIL
                     (LIST NODE (1- END))
                     WRAP?)
 
-             (IL:* IL:|;;| "a node is selected, look for a matching node ")

+             (IL:* IL:|;;| "a node is selected, look for a matching node ")

 
              (IF (SETF END (PREV-NODE NODE T))
 
-                 (IL:* IL:|;;| "start the search with the previous node")

+                 (IL:* IL:|;;| "start the search with the previous node")

 
-                 (FIND-AND-DISPLAY-STRUCTURE-BACKWARDS
 CONTEXT (STRUCTURE-FROM-SELECTION

-                                                                    SELECTION)
+                 (FIND-AND-DISPLAY-STRUCTURE-BACKWARDS
 CONTEXT (STRUCTURE-FROM-SELECTION
 SELECTION)
                         NIL END WRAP?)
 
-                 (IL:* IL:|;;| "there are no more nodes, either wrap or give up")

+                 (IL:* IL:|;;| "there are no more nodes, either wrap or give up")

 
                  (IF WRAP?
-                     (FIND-AND-DISPLAY-STRUCTURE-BACKWARDS
 CONTEXT (STRUCTURE-FROM-SELECTION

-                                                                        SELECTION))
+                     (FIND-AND-DISPLAY-STRUCTURE-BACKWARDS
 CONTEXT (STRUCTURE-FROM-SELECTION
 
+                                                                          SELECTION))
                      (FORMAT PROMPTWINDOW "~%At beginning; no more structure to search."))))))
 
 (DEFUN FIND-STRUCTURE
 (STR SCOPE &OPTIONAL START)
 
-(IL:* IL:|;;;| "Search forward in linearization order for a node whose structure matches STR.  The search is bounded by SCOPE (a pseudo-selection taken to indicate a subtree) and starts at START (a pseudo-selection taken to indicate its left-most node).  START defaults to SCOPE.    The return value is the first node in SCOPE at or after START whose structure is IL:EQUAL to STR.")

+(IL:* IL:|;;;| "Search forward in linearization order for a node whose structure matches STR.  The search is bounded by SCOPE (a pseudo-selection taken to indicate a subtree) and starts at START (a pseudo-selection taken to indicate its left-most node).  START defaults to SCOPE.    The return value is the first node in SCOPE at or after START whose structure is IL:EQUAL to STR.")

 
-(IL:* IL:|;;;| "N.B. Since node structures can not be circular, no subnode of a node can have structure matching that node.  Thus looking for a matching node in pre-order is the same as looking for one in linearization order.  So we do a pre-order search here.")

+(IL:* IL:|;;;| "N.B. Since node structures can not be circular, no subnode of a node can have structure matching that node.  Thus looking for a matching node in pre-order is the same as looking for one in linearization order.  So we do a pre-order search here.")

 
    (MULTIPLE-VALUE-BIND (SCOPE-NODE SCOPE-START SCOPE-END)
           (DECOMPOSE-PSEUDO-SELECTION
 SCOPE)
@@ -727,11 +719,11 @@ IL:|{DSK}<Users>kaplan>Local>medley3.5>git-medley>sources>SEDIT-COMMANDS.;6|)
                                      (EQ START-NODE SCOPE-NODE)))
                             (IL:EQUAL STR (IL:FETCH
 STRUCTURE IL:OF
 SCOPE-NODE)))
 
-                     (IL:* IL:|;;| "special case: the scope includes its root node, we're starting at the root of the scope, and the root of the scope matches the passed structure.")

+                     (IL:* IL:|;;| "special case: the scope includes its root node, we're starting at the root of the scope, and the root of the scope matches the passed structure.")

 
                      (RETURN-FROM FIND-STRUCTURE SCOPE-NODE))
 
-                 (IL:* IL:|;;| "normal case: check all the nodes in the scope subtree in preorder.")

+                 (IL:* IL:|;;| "normal case: check all the nodes in the scope subtree in preorder.")

 
                  (DO* ((MIN-DEPTH (1+ (IL:FETCH
 DEPTH IL:OF
 SCOPE-NODE)))
                        (NODE (OR (IF START-START
@@ -755,7 +747,7 @@ IL:|{DSK}<Users>kaplan>Local>medley3.5>git-medley>sources>SEDIT-COMMANDS.;6|)
 
 (DEFUN FIND-STRUCTURE-BACKWARDS
 (STR SCOPE &OPTIONAL END)
 
-(IL:* IL:|;;;| "like find-structure but searches in reverse linearization order.  Actually we search in postorder rather than reverse linearization order but this works just as well for the same reasons that preorder matches linearization order.")

+(IL:* IL:|;;;| "like find-structure but searches in reverse linearization order.  Actually we search in postorder rather than reverse linearization order but this works just as well for the same reasons that preorder matches linearization order.")

 
    (MULTIPLE-VALUE-BIND (SCOPE-NODE SCOPE-START SCOPE-END)
           (DECOMPOSE-PSEUDO-SELECTION
 SCOPE)
@@ -767,12 +759,11 @@ IL:|{DSK}<Users>kaplan>Local>medley3.5>git-medley>sources>SEDIT-COMMANDS.;6|)
                                      (EQ END-NODE SCOPE-NODE)))
                             (IL:EQUAL STR (IL:FETCH
 STRUCTURE IL:OF
 SCOPE-NODE)))
 
-                     (IL:* IL:|;;| "special case: the scope includes its root node, we're ending at the root of the scope, and the root of the scope matches the passed structure.")

+                     (IL:* IL:|;;| "special case: the scope includes its root node, we're ending at the root of the scope, and the root of the scope matches the passed structure.")

 
                      (RETURN-FROM FIND-STRUCTURE-BACKWARDS SCOPE-NODE))
 
-                 (IL:* IL:|;;| 
-
               "normal case: check all the nodes in the scope subtree in postorder.")

+                 (IL:* IL:|;;| "normal case: check all the nodes in the scope subtree in postorder.")

 
                  (DO* ((MIN-DEPTH (1+ (IL:FETCH
 DEPTH IL:OF
 SCOPE-NODE)))
                        (NODE (OR (IF END-END
@@ -796,9 +787,9 @@ IL:|{DSK}<Users>kaplan>Local>medley3.5>git-medley>sources>SEDIT-COMMANDS.;6|)
 
 (DEFUN FIND-SUBSTRUCTURE
 (STR SCOPE &OPTIONAL START)
 
-(IL:* IL:|;;;| "Search forward in linearization order for a sequence of nodes whose successive structures match the successive elements of STR.  The search is bounded by SCOPE (a pseudo-selection taken to indicate a subtree) and starts at START (a pseudo-selection taken to indicate the left edge of a subtree).  START defauts to SCOPE.  The return value is a pseudo-selection indicating the sibling sequence of nodes in SCOPE at or to the right of START whose successive node structures are IL:EQUAL to the successive members of STR.")

+(IL:* IL:|;;;| "Search forward in linearization order for a sequence of nodes whose successive structures match the successive elements of STR.  The search is bounded by SCOPE (a pseudo-selection taken to indicate a subtree) and starts at START (a pseudo-selection taken to indicate the left edge of a subtree).  START defauts to SCOPE.  The return value is a pseudo-selection indicating the sibling sequence of nodes in SCOPE at or to the right of START whose successive node structures are IL:EQUAL to the successive members of STR.")

 
-(IL:* IL:|;;;| "N.B. For a sequence of sibling nodes, first in linearization order can not be found by doing a preorder search.  See find-node-substructure for details about the correct search method.")

+(IL:* IL:|;;;| "N.B. For a sequence of sibling nodes, first in linearization order can not be found by doing a preorder search.  See find-node-substructure for details about the correct search method.")

 
    (MULTIPLE-VALUE-BIND (SCOPE-NODE SCOPE-START SCOPE-END)
           (DECOMPOSE-PSEUDO-SELECTION
 SCOPE)
@@ -807,18 +798,18 @@ IL:|{DSK}<Users>kaplan>Local>medley3.5>git-medley>sources>SEDIT-COMMANDS.;6|)
                  (COND
                     ((NULL START-NODE)
 
-                     (IL:* IL:|;;| "just check the entire scope")

+                     (IL:* IL:|;;| "just check the entire scope")

 
                      (FIND-NODE-SUBSTRUCTURE
 STR (LENGTH STR)
                             SCOPE-NODE SCOPE-START SCOPE-END))
                     ((EQ START-NODE SCOPE-NODE)
 
-                     (IL:* IL:|;;| "just check a terminal subtree of the scope")

+                     (IL:* IL:|;;| "just check a terminal subtree of the scope")

 
                      (FIND-NODE-SUBSTRUCTURE
 STR (LENGTH STR)
                             SCOPE-NODE START-START SCOPE-END))
                     (T 
-                       (IL:* IL:|;;| "check each node from the start subtree up and to the right in the scope subtree.  We carefully resume the recursion that would have happened if we had started from the root of the subtree.  This means checking remaining structure in super-nodes on our way from the start node back up the subtree.")

+                       (IL:* IL:|;;| "check each node from the start subtree up and to the right in the scope subtree.  We carefully resume the recursion that would have happened if we had started from the root of the subtree.  This means checking remaining structure in super-nodes on our way from the start node back up the subtree.")

 
                        (DO ((NODE START-NODE SUPER-NODE)
                             (SUPER-NODE (IL:FETCH
 SUPER-NODE IL:OF
 START-NODE)
@@ -839,7 +830,7 @@ IL:|{DSK}<Users>kaplan>Local>medley3.5>git-medley>sources>SEDIT-COMMANDS.;6|)
 
 (DEFUN FIND-SUBSTRUCTURE-BACKWARDS
 (STR SCOPE &OPTIONAL END)
 
-(IL:* IL:|;;;| "Like find-substructure but searches in reverse linearization order.")

+(IL:* IL:|;;;| "Like find-substructure but searches in reverse linearization order.")

 
    (MULTIPLE-VALUE-BIND (SCOPE-NODE SCOPE-START SCOPE-END)
           (DECOMPOSE-PSEUDO-SELECTION
 SCOPE)
@@ -848,18 +839,18 @@ IL:|{DSK}<Users>kaplan>Local>medley3.5>git-medley>sources>SEDIT-COMMANDS.;6|)
                  (COND
                     ((NULL END-NODE)
 
-                     (IL:* IL:|;;| "just check the entire scope")

+                     (IL:* IL:|;;| "just check the entire scope")

 
                      (FIND-NODE-SUBSTRUCTURE-BACKWARDS
 STR (LENGTH STR)
                             SCOPE-NODE SCOPE-START SCOPE-END))
                     ((EQ END-NODE SCOPE-NODE)
 
-                     (IL:* IL:|;;| "just check an initial subtree of the scope")

+                     (IL:* IL:|;;| "just check an initial subtree of the scope")

 
                      (FIND-NODE-SUBSTRUCTURE-BACKWARDS
 STR (LENGTH STR)
                             SCOPE-NODE SCOPE-START END-END))
                     (T 
-                       (IL:* IL:|;;| "check each node in the initial subtree of scope terminated by the end subtree.  We carefully resume the recursion that would have happened if we had started from the root of the scope subtree.  This means checking remaining structure in super-nodes on our way from the end node back up the subtree.")

+                       (IL:* IL:|;;| "check each node in the initial subtree of scope terminated by the end subtree.  We carefully resume the recursion that would have happened if we had started from the root of the scope subtree.  This means checking remaining structure in super-nodes on our way from the end node back up the subtree.")

 
                        (DO ((NODE END-NODE SUPER-NODE)
                             (SUPER-NODE (IL:FETCH
 SUPER-NODE IL:OF
 END-NODE)
@@ -873,8 +864,8 @@ IL:|{DSK}<Users>kaplan>Local>medley3.5>git-medley>sources>SEDIT-COMMANDS.;6|)
                             (STRLEN (LENGTH STR))
                             MATCH)
                            ((OR (NULL NODE)
-                                (SETF MATCH (FIND-NODE-SUBSTRUCTURE-BACKWARDS
 STR STRLEN NODE 
-                                                   START END CONTINUATION?))
+                                (SETF MATCH (FIND-NODE-SUBSTRUCTURE-BACKWARDS
 STR STRLEN NODE START 
+                                                   END CONTINUATION?))
                                 (EQ NODE SCOPE-NODE))
                             MATCH)))))))
 
@@ -885,15 +876,14 @@ IL:|{DSK}<Users>kaplan>Local>medley3.5>git-medley>sources>SEDIT-COMMANDS.;6|)
 
 (DEFUN SEARCH-OBJ
 (CONTEXT &OPTIONAL SEARCH-STRING WRAP?)
 
-(IL:* IL:|;;;| "Search for the the structure(s) in the string SEARCH-OBJ and display them.  The search starts just after the current point  or selection, if any.")

+(IL:* IL:|;;;| "Search for the the structure(s) in the string SEARCH-OBJ and display them.  The search starts just after the current point  or selection, if any.")

 
    (MULTIPLE-VALUE-BIND (STR STRLEN)
           (STRUCTURE-FROM-STRING
 (OR SEARCH-STRING (SETF SEARCH-STRING
-                                                             (GET-USER-STRING
 CONTEXT "Find: "
-                                                                    (OR (IL:|fetch|
 
-                                                                               FIND-CANDIDATE
-                                                                           IL:|of|
 CONTEXT)
-                                                                        FIND-CANDIDATE)))))
+                                                         (GET-USER-STRING
 CONTEXT "Find: "
+                                                                (OR (IL:|fetch|
 FIND-CANDIDATE
+                                                                       IL:|of|
 CONTEXT)
+                                                                    FIND-CANDIDATE)))))
           (COND
              ((< STRLEN 0)
               (FORMAT (GET-PROMPT-WINDOW CONTEXT)
@@ -904,12 +894,12 @@ IL:|{DSK}<Users>kaplan>Local>medley3.5>git-medley>sources>SEDIT-COMMANDS.;6|)
                      "-- aborted.")
               (RETURN-FROM SEARCH-OBJ)))
 
-          (IL:* IL:|;;| "update the remembered defaults")

+          (IL:* IL:|;;| "update the remembered defaults")

 
-          (IL:|replace|
 FIND-CANDIDATE IL:|of|
 CONTEXT IL:|with|
 (IL:SETQ FIND-CANDIDATE
-                                                                              SEARCH-STRING))
+          (IL:|replace|
 FIND-CANDIDATE IL:|of|
 CONTEXT IL:|with|
 (IL:SETQ FIND-CANDIDATE 
+                                                                  SEARCH-STRING))
 
-          (IL:* IL:|;;| "figure out where to search and where to start")

+          (IL:* IL:|;;| "figure out where to search and where to start")

 
           (LET* ((SCOPE (SUBNODE 1 (IL:FETCH
 ROOT IL:OF
 CONTEXT)))
                  (START (LET* ((POINT (IL:|fetch|
 CARET-POINT IL:|of|
 CONTEXT))
@@ -933,36 +923,35 @@ IL:|{DSK}<Users>kaplan>Local>medley3.5>git-medley>sources>SEDIT-COMMANDS.;6|)
                                  (T SCOPE)))))
                 (UNLESS (OR WRAP? START)
 
-                    (IL:* IL:|;;| "Nothing left to search, and we're not supposed to wrap")

+                    (IL:* IL:|;;| "Nothing left to search, and we're not supposed to wrap")

 
                     (FORMAT (GET-PROMPT-WINDOW CONTEXT)
                            "~%At end; no more structure to search.")
                     (RETURN-FROM SEARCH-OBJ))
 
-                (IL:* IL:|;;| "do the search")

+                (IL:* IL:|;;| "do the search")

 
                 (IF (> STRLEN 1)
 
-                    (IL:* IL:|;;| "substructure search")

+                    (IL:* IL:|;;| "substructure search")

 
                     (FIND-AND-DISPLAY-SUBSTRUCTURE
 CONTEXT STR SCOPE START WRAP?)
 
-                    (IL:* IL:|;;| "structure search")

+                    (IL:* IL:|;;| "structure search")

 
                     (FIND-AND-DISPLAY-STRUCTURE
 CONTEXT (FIRST STR)
                            SCOPE START WRAP?)))))
 
 (DEFUN SEARCH-OBJ-BACKWARDS
 (CONTEXT &OPTIONAL SEARCH-STRING WRAP?)
 
-(IL:* IL:|;;;| "Like search-obj but searches backwards.")

+(IL:* IL:|;;;| "Like search-obj but searches backwards.")

 
    (MULTIPLE-VALUE-BIND (STR STRLEN)
           (STRUCTURE-FROM-STRING
 (OR SEARCH-STRING (SETF SEARCH-STRING
-                                                             (GET-USER-STRING
 CONTEXT "Find: "
-                                                                    (OR (IL:|fetch|
 
-                                                                               FIND-CANDIDATE
-                                                                           IL:|of|
 CONTEXT)
-                                                                        FIND-CANDIDATE)))))
+                                                         (GET-USER-STRING
 CONTEXT "Find: "
+                                                                (OR (IL:|fetch|
 FIND-CANDIDATE
+                                                                       IL:|of|
 CONTEXT)
+                                                                    FIND-CANDIDATE)))))
           (COND
              ((< STRLEN 0)
               (FORMAT (GET-PROMPT-WINDOW CONTEXT)
@@ -973,12 +962,12 @@ IL:|{DSK}<Users>kaplan>Local>medley3.5>git-medley>sources>SEDIT-COMMANDS.;6|)
                      "-- aborted.")
               (RETURN-FROM SEARCH-OBJ-BACKWARDS)))
 
-          (IL:* IL:|;;| "update the remembered defaults")

+          (IL:* IL:|;;| "update the remembered defaults")

 
-          (IL:|replace|
 FIND-CANDIDATE IL:|of|
 CONTEXT IL:|with|
 (IL:SETQ FIND-CANDIDATE
-                                                                              SEARCH-STRING))
+          (IL:|replace|
 FIND-CANDIDATE IL:|of|
 CONTEXT IL:|with|
 (IL:SETQ FIND-CANDIDATE 
+                                                                  SEARCH-STRING))
 
-          (IL:* IL:|;;| "figure out where to search and where to start")

+          (IL:* IL:|;;| "figure out where to search and where to start")

 
           (LET* ((SCOPE (SUBNODE 1 (IL:FETCH
 ROOT IL:OF
 CONTEXT)))
                  (END (LET* ((POINT (IL:|fetch|
 CARET-POINT IL:|of|
 CONTEXT))
@@ -1002,30 +991,30 @@ IL:|{DSK}<Users>kaplan>Local>medley3.5>git-medley>sources>SEDIT-COMMANDS.;6|)
                                (T SCOPE)))))
                 (UNLESS (OR WRAP? END)
 
-                    (IL:* IL:|;;| "Nothing left to search, and we're not supposed to wrap")

+                    (IL:* IL:|;;| "Nothing left to search, and we're not supposed to wrap")

 
                     (FORMAT (GET-PROMPT-WINDOW CONTEXT)
                            "~%At beginning; no more structure to search.")
                     (RETURN-FROM SEARCH-OBJ-BACKWARDS))
 
-                (IL:* IL:|;;| "do the search")

+                (IL:* IL:|;;| "do the search")

 
                 (IF (> STRLEN 1)
 
-                    (IL:* IL:|;;| "substructure search")

+                    (IL:* IL:|;;| "substructure search")

 
                     (FIND-AND-DISPLAY-SUBSTRUCTURE-BACKWARDS
 CONTEXT STR SCOPE END WRAP?)
 
-                    (IL:* IL:|;;| "structure search")

+                    (IL:* IL:|;;| "structure search")

 
                     (FIND-AND-DISPLAY-STRUCTURE-BACKWARDS
 CONTEXT (FIRST STR)
                            SCOPE END WRAP?)))))
 
 (DEFUN SUBSTITUTE-OBJ
 (CONTEXT &OPTIONAL CHARCODE OLDSTR NEWSTR REMOVE?)
 
-(IL:* IL:|;;;| "OLDSTR and NEWSTR are strings.  In the scope of the selection, replace every occurence of structure matching OLDSTR by structure parsed from NEWSTR.  If REMOVE? is specified, just remove structure matching OLD.")

+(IL:* IL:|;;;| "OLDSTR and NEWSTR are strings.  In the scope of the selection, replace every occurence of structure matching OLDSTR by structure parsed from NEWSTR.  If REMOVE? is specified, just remove structure matching OLD.")

 
-(IL:* IL:|;;;| "We preserve the selection as best we can.  Point gets thrown away.")

+(IL:* IL:|;;;| "We preserve the selection as best we can.  Point gets thrown away.")

 
    (CLOSE-OPEN-NODE CONTEXT)
    (LET* ((PROMPTWINDOW (GET-PROMPT-WINDOW CONTEXT))
@@ -1033,7 +1022,7 @@ IL:|{DSK}<Users>kaplan>Local>medley3.5>git-medley>sources>SEDIT-COMMANDS.;6|)
           (SCOPE NIL)
           (TYPE (IF REMOVE?
                     "delet"
-                    "substitut")))                           (IL:* IL:\; "hack!!!")

+                    "substitut")))                           (IL:* IL:\; "hack!!!")

          (UNLESS (AND (IL:|fetch|
 SELECT-NODE IL:|of|
 SELECTION)
                       (EQ (IL:|fetch|
 SELECT-TYPE IL:|of|
 SELECTION)
                           'STRUCTURE))
@@ -1041,14 +1030,13 @@ IL:|{DSK}<Users>kaplan>Local>medley3.5>git-medley>sources>SEDIT-COMMANDS.;6|)
              (RETURN-FROM SUBSTITUTE-OBJ T))
          (SETQ SCOPE (PSEUDO-SELECTION-FROM-SELECTION
 SELECTION))
          (MULTIPLE-VALUE-BIND (OLD OLDLEN)
-                (STRUCTURE-FROM-STRING
 (OR OLDSTR (SETF OLDSTR
-                                                            (GET-USER-STRING
 CONTEXT
-                                                                   (IF REMOVE?
-                                                                       "Delete form: "
-                                                                       "Replace old form: ")
-                                                                   (OR (IL:|fetch|
 FIND-CANDIDATE
-                                                                          IL:|of|
 CONTEXT)
-                                                                       FIND-CANDIDATE)))))
+                (STRUCTURE-FROM-STRING
 (OR OLDSTR (SETF OLDSTR (GET-USER-STRING
 CONTEXT
+                                                                      (IF REMOVE?
+                                                                          "Delete form: "
+                                                                          "Replace old form: ")
+                                                                      (OR (IL:|fetch|
 FIND-CANDIDATE
+                                                                             IL:|of|
 CONTEXT)
+                                                                          FIND-CANDIDATE)))))
                 (COND
                    ((< OLDLEN 0)
                     (FORMAT PROMPTWINDOW " -- Invalid structure.")
@@ -1060,13 +1048,13 @@ IL:|{DSK}<Users>kaplan>Local>medley3.5>git-medley>sources>SEDIT-COMMANDS.;6|)
                        (IF REMOVE?
                            (VALUES NIL 0)
                            (STRUCTURE-FROM-STRING
 (OR NEWSTR
-                                                          (SETF NEWSTR
-                                                                (GET-USER-STRING

-                                                                 CONTEXT "with new form: "
-                                                                 (OR (IL:|fetch|
 
-                                                                            SUBSTITUTE-CANDIDATE
-                                                                        IL:|of|
 CONTEXT)
-                                                                     SUBSTITUTE-CANDIDATE))))))
+                                                      (SETF NEWSTR
+                                                            (GET-USER-STRING
 CONTEXT 
+                                                                   "with new form: "
+                                                                   (OR (IL:|fetch|
 
+                                                                              SUBSTITUTE-CANDIDATE
+                                                                          IL:|of|
 CONTEXT)
+                                                                       SUBSTITUTE-CANDIDATE))))))
                        (COND
                           ((< NEWLEN 0)
                            (FORMAT PROMPTWINDOW " -- Invalid structure.")
@@ -1076,16 +1064,16 @@ IL:|{DSK}<Users>kaplan>Local>medley3.5>git-medley>sources>SEDIT-COMMANDS.;6|)
                            (FORMAT PROMPTWINDOW "-- aborted.")
                            (RETURN-FROM SUBSTITUTE-OBJ T)))
 
-                       (IL:* IL:|;;| "update defaults ")

+                       (IL:* IL:|;;| "update defaults ")

 
-                       (IL:|replace|
 FIND-CANDIDATE IL:|of|
 CONTEXT IL:|with|
 (IL:SETQ 
-                                                                                       FIND-CANDIDATE
-                                                                                           OLDSTR))
+                       (IL:|replace|
 FIND-CANDIDATE IL:|of|
 CONTEXT IL:|with|
 (IL:SETQ FIND-CANDIDATE
+                                                                               OLDSTR))
                        (UNLESS REMOVE?
-                           (IL:|replace|
 SUBSTITUTE-CANDIDATE IL:|of|
 CONTEXT
-                              IL:|with|
 (IL:SETQ SUBSTITUTE-CANDIDATE NEWSTR)))
+                           (IL:|replace|
 SUBSTITUTE-CANDIDATE IL:|of|
 CONTEXT IL:|with|
 (IL:SETQ 
+                                                                                 SUBSTITUTE-CANDIDATE
+                                                                                         NEWSTR)))
 
-                       (IL:* IL:|;;| "do the substitution, report, and reselect.")

+                       (IL:* IL:|;;| "do the substitution, report, and reselect.")

 
                        (MULTIPLE-VALUE-BIND (NEW-SCOPE SUBCOUNT)
                               (IF (> OLDLEN 1)
@@ -1101,14 +1089,14 @@ IL:|{DSK}<Users>kaplan>Local>medley3.5>git-medley>sources>SEDIT-COMMANDS.;6|)
 
 (DEFUN SUBSTITUTE-STRUCTURE
 (CONTEXT OLD NEW SCOPE &OPTIONAL REMOVE?)
 
-(IL:* IL:|;;;| "Inside SCOPE, replace any node with structure OLD by nodes gotten from parsing NEW.  If REMOVE? is given, just delete the old nodes.  Returns two values: the final scope after all substitutions are made, and the number of substitutions/deletions made.")

+(IL:* IL:|;;;| "Inside SCOPE, replace any node with structure OLD by nodes gotten from parsing NEW.  If REMOVE? is given, just delete the old nodes.  Returns two values: the final scope after all substitutions are made, and the number of substitutions/deletions made.")

 
-(IL:* IL:|;;;| "The substitution is done as a single undoable operation, and the current selection and point are thrown away.")

+(IL:* IL:|;;;| "The substitution is done as a single undoable operation, and the current selection and point are thrown away.")

 
    (MULTIPLE-VALUE-BIND (SCOPE-NODE SCOPE-START SCOPE-END)
           (DECOMPOSE-PSEUDO-SELECTION
 SCOPE)
-          (LET* ((ROOT (IL:FETCH
 ROOT IL:OF
 CONTEXT))(IL:* IL:\; 
-
                                                           "substituting for root is special")

+          (LET* ((ROOT (IL:FETCH
 ROOT IL:OF
 CONTEXT))        (IL:* IL:\; 
+
                                                             "substituting for root is special")

                  (POINT (IL:FETCH
 CARET-POINT IL:OF
 CONTEXT))
                  (SELECTION (IL:FETCH
 SELECTION IL:OF
 CONTEXT))
                  (NEWLEN (IF REMOVE?
@@ -1139,14 +1127,14 @@ IL:|{DSK}<Users>kaplan>Local>medley3.5>git-medley>sources>SEDIT-COMMANDS.;6|)
                       (SET-SELECTION-NOWHERE SELECTION)
                       (VALUES SCOPE NUMSUBS))
 
-                   (IL:* IL:|;;| "replace the target ")

+                   (IL:* IL:|;;| "replace the target ")

 
                    (SELECT-NODE CONTEXT TARGET)
                    (COND
                       (REMOVE? (COND
                                   ((EQ TARGET-SUPER ROOT)
 
-                                   (IL:* IL:|;;| "\"delete\" the root structure by making it nil")

+                                   (IL:* IL:|;;| "\"delete\" the root structure by making it nil")

 
                                    (PENDING-DELETE POINT SELECTION)
                                    (INSERT-NULL-LIST CONTEXT))
@@ -1154,19 +1142,19 @@ IL:|{DSK}<Users>kaplan>Local>medley3.5>git-medley>sources>SEDIT-COMMANDS.;6|)
                       (T (PENDING-DELETE POINT SELECTION)
                          (INSERT POINT CONTEXT (COPY-LIST NEW-NODES))))
 
-                   (IL:* IL:|;;| "fix up the scope, if necessary")

+                   (IL:* IL:|;;| "fix up the scope, if necessary")

 
                    (COND
                       ((EQ TARGET SCOPE-NODE)
 
-                       (IL:* IL:|;;| "matched the scope, so we're done")

+                       (IL:* IL:|;;| "matched the scope, so we're done")

 
                        (COND
                           (REMOVE? (SETF SCOPE NIL))
                           ((= NEWLEN 1)
                            (SETF SCOPE (SUBNODE TARGET-INDEX TARGET-SUPER)))
                           (T 
-                             (IL:* IL:|;;| "replacing the root structure with multiple nodes inserts a new level of list between the root (target-super) and the multiple nodes inserted.  In this case, make the scope node be the new list node instead of the root itself.")

+                             (IL:* IL:|;;| "replacing the root structure with multiple nodes inserts a new level of list between the root (target-super) and the multiple nodes inserted.  In this case, make the scope node be the new list node instead of the root itself.")

 
                              (SETF SCOPE (LIST (IF (EQ TARGET-SUPER ROOT)
                                                    (SUBNODE 1 ROOT)
@@ -1176,7 +1164,7 @@ IL:|{DSK}<Users>kaplan>Local>medley3.5>git-medley>sources>SEDIT-COMMANDS.;6|)
                        (SETF RESUME NIL))
                       ((AND SCOPE-START (EQ TARGET-SUPER SCOPE-NODE))
 
-                       (IL:* IL:|;;| "matched a direct subnode of an extended scope")

+                       (IL:* IL:|;;| "matched a direct subnode of an extended scope")

 
                        (WHEN (= TARGET-INDEX SCOPE-END)
                              (SETF RESUME NIL))
@@ -1185,9 +1173,9 @@ IL:|{DSK}<Users>kaplan>Local>medley3.5>git-medley>sources>SEDIT-COMMANDS.;6|)
 
 (DEFUN SUBSTITUTE-SUBSTRUCTURE
 (CONTEXT OLD NEW SCOPE &OPTIONAL REMOVE?)
 
-(IL:* IL:|;;;| "Inside SCOPE, replace any sequences of nodes whose structures sequentially match the elements of OLD by nodes gotten from parsing NEW.  If REMOVE? is given, just delete the old sequences.  Returns two values: the final scope after all substitutions are made, and the number of substitutions/deletions made.")

+(IL:* IL:|;;;| "Inside SCOPE, replace any sequences of nodes whose structures sequentially match the elements of OLD by nodes gotten from parsing NEW.  If REMOVE? is given, just delete the old sequences.  Returns two values: the final scope after all substitutions are made, and the number of substitutions/deletions made.")

 
-(IL:* IL:|;;;| "The substitution is done as a single undoable operation, and the current selection and point are thrown away.")

+(IL:* IL:|;;;| "The substitution is done as a single undoable operation, and the current selection and point are thrown away.")

 
    (MULTIPLE-VALUE-BIND (SCOPE-NODE SCOPE-START SCOPE-END)
           (DECOMPOSE-PSEUDO-SELECTION
 SCOPE)
@@ -1218,7 +1206,7 @@ IL:|{DSK}<Users>kaplan>Local>medley3.5>git-medley>sources>SEDIT-COMMANDS.;6|)
                    (MULTIPLE-VALUE-BIND (TNODE TSTART TEND)
                           (DECOMPOSE-PSEUDO-SELECTION
 TARGET)
 
-                          (IL:* IL:|;;| "replace the target ")

+                          (IL:* IL:|;;| "replace the target ")

 
                           (SELECT-PSEUDO-SEGMENT
 CONTEXT TARGET)
                           (COND
@@ -1226,13 +1214,12 @@ IL:|{DSK}<Users>kaplan>Local>medley3.5>git-medley>sources>SEDIT-COMMANDS.;6|)
                              (T (PENDING-DELETE POINT SELECTION)
                                 (INSERT POINT CONTEXT (COPY-LIST NEW-NODES))))
 
-                          (IL:* IL:|;;| 
-
                        "fix up the scope, if necessary, and figure where to resume")

+                          (IL:* IL:|;;| "fix up the scope, if necessary, and figure where to resume")

 
                           (COND
                              ((AND SCOPE-START (EQ TNODE SCOPE-NODE))
 
-                              (IL:* IL:|;;| "matched direct subnodes of an extended scope")

+                              (IL:* IL:|;;| "matched direct subnodes of an extended scope")

 
                               (IF (= TEND SCOPE-END)
                                   (SETF RESUME NIL)
@@ -1243,7 +1230,7 @@ IL:|{DSK}<Users>kaplan>Local>medley3.5>git-medley>sources>SEDIT-COMMANDS.;6|)
 
 (DEFUN STRUCTURE-FROM-SELECTION
 (SELECTION)
 
-(IL:* IL:|;;;| "selection must be a structure selection.  Return the structure encompassed by selection, which if the selection is a node is the structure of that node, and if the selection is a segment a list of the structures of the nodes in that segment.")

+(IL:* IL:|;;;| "selection must be a structure selection.  Return the structure encompassed by selection, which if the selection is a node is the structure of that node, and if the selection is a segment a list of the structures of the nodes in that segment.")

 
    (LET* ((NODE (IL:FETCH
 SELECT-NODE IL:OF
 SELECTION))
           (START (IL:FETCH
 SELECT-START IL:OF
 SELECTION))
@@ -1263,7 +1250,7 @@ IL:|{DSK}<Users>kaplan>Local>medley3.5>git-medley>sources>SEDIT-COMMANDS.;6|)
 
 (DEFUN STRUCTURE-FROM-STRING
 (STR)
 
-(IL:* IL:|;;;| "return all the structures that can be read from string as a list.  return a second value saying how many structures there were.  If an error is encountered, a second value of -1 is returned. ")

+(IL:* IL:|;;;| "return all the structures that can be read from string as a list.  return a second value saying how many structures there were.  If an error is encountered, a second value of -1 is returned. ")

 
    (COND
       ((NULL STR)
@@ -1285,7 +1272,7 @@ IL:|{DSK}<Users>kaplan>Local>medley3.5>git-medley>sources>SEDIT-COMMANDS.;6|)
 
 (DEFUN COMMENT-OUT-SELECTION
 (CONTEXT CHARCODE)
 
-(IL:* IL:|;;;| "given a sequence of whole structure selections, build a 5 level comment node and replace the nodes with the comment.")

+(IL:* IL:|;;;| "given a sequence of whole structure selections, build a 5 level comment node and replace the nodes with the comment.")

 
    (LET* ((SELECTION (IL:FETCH
 SELECTION IL:OF
 CONTEXT))
           (POINT (IL:FETCH
 CARET-POINT IL:OF
 CONTEXT))
@@ -1301,14 +1288,14 @@ IL:|{DSK}<Users>kaplan>Local>medley3.5>git-medley>sources>SEDIT-COMMANDS.;6|)
                   (START (WITH-OUTPUT-TO-STRING (S)
                                 (IL:BIND
 BLANK-BEFORE IL:FOR
 I IL:FROM
 START
                                    IL:TO
 (OR (IL:FETCH
 SELECT-END IL:OF
 SELECTION)
-                                                 START) IL:AS
 X
+                                             START) IL:AS
 X
                                    IL:ON
 (CDR (IL:NTH (IL:FETCH
 SUB-NODES IL:OF
 NODE)
-                                                         START))
-                                   IL:DO
 (IF BLANK-BEFORE
-                                                 (WRITE-CHAR #\Space S)
-                                                 (SETQ BLANK-BEFORE T))
-                                         (PRIN1 (IL:FETCH
 STRUCTURE IL:OF
 (CAR X))
-                                                S))))
+                                                     START)) IL:DO
 (IF BLANK-BEFORE
+                                                                       (WRITE-CHAR #\Space S)
+                                                                       (SETQ BLANK-BEFORE T))
+                                                                   (PRIN1 (IL:FETCH
 STRUCTURE
+                                                                             IL:OF
 (CAR X))
+                                                                          S))))
                   (T (FORMAT NIL "~S" (IL:FETCH
 STRUCTURE IL:OF
 NODE))))))
          (WHEN STR
              (LET ((NEW-NODE (PARSE-NEW (LIST 'IL:* 'IL:\| STR)
@@ -1585,42 +1572,40 @@ IL:|{DSK}<Users>kaplan>Local>medley3.5>git-medley>sources>SEDIT-COMMANDS.;6|)
 (il:lambda (context node subnodes) (il:* il:\; "Edited  7-Jul-87 09:39 by DCB") (il:* il:|;;;| "sticks subnodes back into node and revives them.  ") (rplacd (il:fetch sub-nodes il:of node) subnodes) (il:for subnode il:in subnodes il:as index il:from 1 il:do (il:replace super-node il:of subnode il:with node) (il:replace sub-node-index il:of subnode il:with index) (detach-node subnode) (revive-node subnode (il:fetch depth il:of node))) (il:* il:|;;| "used to reparse here.  now if we simply note the change, the format types, format values, and linear forms will be recomputed.") (note-change node context))
 )
 )
-(IL:PUTPROPS IL:SEDIT-COMMANDS IL:COPYRIGHT ("Venue & Xerox Corporation" 1986 1987 1988 1990 1991 2018
- 2021))
 (IL:DECLARE\: IL:DONTCOPY
-  (IL:FILEMAP (NIL (13643 14213 (PSEUDO-SELECTION-FROM-SELECTION 13643 . 14213)) (14215 14969 (
-COMPOSE-PSEUDO-SELECTION 14215 . 14969)) (14971 15510 (DECOMPOSE-PSEUDO-SELECTION 14971 . 15510)) (
-15512 16309 (SELECTION-FROM-PSEUDO-SELECTION 15512 . 16309)) (16311 16614 (SELECT-PSEUDO-SEGMENT 16311
- . 16614)) (16679 17569 (ADD-COMMAND 16679 . 17569)) (17571 19734 (GET-SELECTION 17571 . 19734)) (
-19736 20916 (REPLACE-SELECTION 19736 . 20916)) (20918 21410 (RESET-COMMANDS 20918 . 21410)) (21412 
-21581 (DEFAULT-COMMANDS 21412 . 21581)) (22059 23162 (EQUALIZE-STRING-WIDTHS 22059 . 23162)) (23164 
-23362 (MINIMUM-STRING-WIDTH 23164 . 23362)) (23364 23562 (MAXIMUM-STRING-WIDTH 23364 . 23562)) (23564 
-24435 (FIND-AND-DISPLAY-STRUCTURE 23564 . 24435)) (24437 25121 (FIND-AND-DISPLAY-STRUCTURE-BACKWARDS 
-24437 . 25121)) (25123 26027 (FIND-AND-DISPLAY-SUBSTRUCTURE 25123 . 26027)) (26029 26732 (
-FIND-AND-DISPLAY-SUBSTRUCTURE-BACKWARDS 26029 . 26732)) (26734 27375 (FIND-NTH-STRUCTURE 26734 . 27375
-)) (27377 30107 (FIND-NODE-SUBSTRUCTURE 27377 . 30107)) (30109 31362 (FIND-NODE-SUBSTRUCTURE-BACKWARDS
- 30109 . 31362)) (31364 32343 (FIND-OBJ 31364 . 32343)) (32345 33745 (FIND-SELECTION 32345 . 33745)) (
-33747 35439 (FIND-SELECTION-BACKWARDS 33747 . 35439)) (35441 38170 (FIND-STRUCTURE 35441 . 38170)) (
-38172 40519 (FIND-STRUCTURE-BACKWARDS 38172 . 40519)) (40521 43450 (FIND-SUBSTRUCTURE 40521 . 43450)) 
-(43452 45752 (FIND-SUBSTRUCTURE-BACKWARDS 43452 . 45752)) (45754 45990 (GET-USER-STRING 45754 . 45990)
-) (45992 49700 (SEARCH-OBJ 45992 . 49700)) (49702 53367 (SEARCH-OBJ-BACKWARDS 49702 . 53367)) (53369 
-58195 (SUBSTITUTE-OBJ 53369 . 58195)) (58197 62853 (SUBSTITUTE-STRUCTURE 58197 . 62853)) (62855 66027 
-(SUBSTITUTE-SUBSTRUCTURE 62855 . 66027)) (66029 67191 (STRUCTURE-FROM-SELECTION 66029 . 67191)) (67193
- 68036 (STRUCTURE-FROM-STRING 67193 . 68036)) (68038 70179 (COMMENT-OUT-SELECTION 68038 . 70179)) (
-70180 125041 (ADD-MENU 70193 . 70856) (BACKSPACE 70858 . 71837) (CHANGE-PACKAGE 71839 . 74639) (
-CHANGE-PRINTBASE 74641 . 76823) (CHANGE-QUOTE 76825 . 77180) (CONVERT-COMMENT 77182 . 78942) (
-CONVERT-COMMENT-STRUCTURE 78944 . 80247) (CONVERT-COMMENT-TAIL 80249 . 81649) (CREATE-COMMAND-TABLE 
-81651 . 83629) (DEFAULT-EDIT-FN 83631 . 83768) (DELETE-SELECTION 83770 . 84452) (DELETE-WORD 84454 . 
-86555) (DO-MUTATION 86557 . 87105) (EDIT-SELECTION 87107 . 87555) (EVAL-SELECTION 87557 . 89426) (
-EXPAND 89428 . 90557) (EXTRACT-CURRENT-SELECTION 90559 . 92927) (FIND-COMMENT 92929 . 93623) (GET-MENU
- 93625 . 94002) (EDIT-HELP 94004 . 95079) (HELPMENU 95081 . 97870) (INPUT-DOT 97872 . 100004) (
-INPUT-ESCAPE 100006 . 100254) (INPUT-NORMAL-CHAR 100256 . 102289) (INPUT-QUOTE 102291 . 105373) (
-INPUT-SQUARE-BRACKET 105375 . 105726) (INPUT-STRINGDELIM 105728 . 107127) (INPUT-TOKENDELIM 107129 . 
-108109) (INSERT-MULTI-ESCAPE 108111 . 109239) (INSERT-SPECIAL-CHARACTER 109241 . 110501) (
-INSPECT-SELECTION 110503 . 111038) (JOIN 111040 . 114710) (MENU-CLOSEFN 114712 . 114930) (
-MENU-FIND-SELECTEDFN 114932 . 115632) (MENU-INIT-STATE 115634 . 116441) (MENU-PACKAGE-SELECTEDFN 
-116443 . 117494) (MENU-PRINTBASE-SELECTEDFN 117496 . 118372) (MENU-SELECTEDFN 118374 . 118800) (
-MENU-SUBSTITUTE-SELECTEDFN 118802 . 119762) (MUTATE 119764 . 120874) (QUOTE-CURRENT-SELECTION 120876
- . 121643) (REDISPLAY 121645 . 121884) (REDO 121886 . 122380) (SELECTED-FN-NAME 122382 . 122827) (
-SKIP-TO-GAP 122829 . 123606) (UNDO 123608 . 124408) (UNDO-EXTRACT 124410 . 125039)))))
+  (IL:FILEMAP (NIL (13440 14010 (PSEUDO-SELECTION-FROM-SELECTION 13440 . 14010)) (14012 14766 (
+COMPOSE-PSEUDO-SELECTION 14012 . 14766)) (14768 15307 (DECOMPOSE-PSEUDO-SELECTION 14768 . 15307)) (
+15309 16106 (SELECTION-FROM-PSEUDO-SELECTION 15309 . 16106)) (16108 16411 (SELECT-PSEUDO-SEGMENT 16108
+ . 16411)) (16476 17366 (ADD-COMMAND 16476 . 17366)) (17368 19539 (GET-SELECTION 17368 . 19539)) (
+19541 20721 (REPLACE-SELECTION 19541 . 20721)) (20723 21044 (RESET-COMMANDS 20723 . 21044)) (21046 
+21215 (DEFAULT-COMMANDS 21046 . 21215)) (21693 22701 (EQUALIZE-STRING-WIDTHS 21693 . 22701)) (22703 
+22901 (MINIMUM-STRING-WIDTH 22703 . 22901)) (22903 23101 (MAXIMUM-STRING-WIDTH 22903 . 23101)) (23103 
+23974 (FIND-AND-DISPLAY-STRUCTURE 23103 . 23974)) (23976 24660 (FIND-AND-DISPLAY-STRUCTURE-BACKWARDS 
+23976 . 24660)) (24662 25566 (FIND-AND-DISPLAY-SUBSTRUCTURE 24662 . 25566)) (25568 26271 (
+FIND-AND-DISPLAY-SUBSTRUCTURE-BACKWARDS 25568 . 26271)) (26273 26914 (FIND-NTH-STRUCTURE 26273 . 26914
+)) (26916 29646 (FIND-NODE-SUBSTRUCTURE 26916 . 29646)) (29648 30875 (FIND-NODE-SUBSTRUCTURE-BACKWARDS
+ 29648 . 30875)) (30877 31856 (FIND-OBJ 30877 . 31856)) (31858 33229 (FIND-SELECTION 31858 . 33229)) (
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 IL:STOP
diff --git a/sources/SEDIT-COMMANDS.DFASL b/sources/SEDIT-COMMANDS.DFASL
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