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Merge pull request #630 from Interlisp/rmk10

Rmk10: Background fixups to support git-compare
This commit is contained in:
rmkaplan 2021-12-17 22:25:56 -08:00 committed by GitHub
commit dcd83c3753
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8 changed files with 828 additions and 1139 deletions

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@ -1,12 +1,11 @@
(DEFINE-FILE-INFO PACKAGE "INTERLISP" READTABLE "INTERLISP" BASE 10)
(FILECREATED "13-Oct-2021 10:00:40" 
{DSK}<Users>kaplan>Local>medley3.5>git-medley>library>TEDIT.;19 142287
(FILECREATED "16-Dec-2021 12:34:26" {DSK}<Users>kaplan>Local>medley3.5>my-medley>library>TEDIT.;21 142324
changes to%: (FNS TEDIT-SEE)
:CHANGES-TO (FNS TEDIT-SEE)
previous date%: "11-Oct-2021 14:03:12"
{DSK}<Users>kaplan>Local>medley3.5>git-medley>library>TEDIT.;18)
:PREVIOUS-DATE "13-Oct-2021 10:00:40"
{DSK}<Users>kaplan>Local>medley3.5>my-medley>library>TEDIT.;20)
(* ; "
@ -27,9 +26,9 @@ Copyright (c) 1983-1993, 1995, 1999, 2018, 2021 by Venue & Xerox Corporation.
(TEDIT.STARTUP.MONITORLOCK (CREATE.MONITORLOCK 'TEDIT.STARTUP))
(TEDIT.RESTART.MENU (\CREATE.TEDIT.RESTART.MENU))
(* ;
 "Original was (CREATE MENU ITEMS _ '(NewEditProcess)).")
 "Original was (CREATE MENU ITEMS _ '(NewEditProcess)).")
(* ;
 "Changed by yabu.fx, for SUNLOADUP without DWIM.")
 "Changed by yabu.fx, for SUNLOADUP without DWIM.")
)
(GLOBALVARS TEDIT.TENTATIVE TEDIT.DEFAULT.PROPS)
(FNS \TEDIT2 COERCETEXTOBJ TEDIT TEDIT-SEE TEDIT.CHARWIDTH TEDIT.COPY TEDIT.DELETE
@ -40,10 +39,10 @@ Copyright (c) 1983-1993, 1995, 1999, 2018, 2021 by Venue & Xerox Corporation.
\TEDIT.FOREIGN.COPY? \TEDIT.QUIT \TEDIT.WORDDELETE \TEDIT1)
(P (MOVD? 'NILL 'OBJECTOUTOFTEDIT))
(* ;
 "HOOK for looked-string copy, etc. Used in \TEDIT.FOREIGN.COPY?.")
 "HOOK for looked-string copy, etc. Used in \TEDIT.FOREIGN.COPY?.")
(COMS (FNS \CREATE.TEDIT.RESTART.MENU))
(* ;
 "Added by yabu.fx, for SUNLOADUP without DWIM.")
 "Added by yabu.fx, for SUNLOADUP without DWIM.")
(COMS (* ; "Debugging functions")
(FNS PLCHAIN PRINTLINE SEEFILE))
(COMS (* ; "Object-oriented editing")
@ -56,10 +55,10 @@ Copyright (c) 1983-1993, 1995, 1999, 2018, 2021 by Venue & Xerox Corporation.
(VARS TEDITSYSTEMDATE (TEDITSUPPORT "TEditSupport.PA"))
(FNS MAKETEDITFORM)
(P (ADDTOVAR LAFITESPECIALFORMS ("TEdit Report" 'MAKETEDITFORM
"Report a problem with TEdit"))
"Report a problem with TEdit"))
(SETQ LAFITEFORMSMENU NIL)))
(COMS (* ;
 "LISTFILES Interface, so the system can decide if a file is a TEdit file.")
 "LISTFILES Interface, so the system can decide if a file is a TEdit file.")
(ADDVARS (PRINTFILETYPES (TEDIT (TEST \TEDIT.FORMATTEDP1)
(EXTENSION (TEDIT])
@ -330,8 +329,9 @@ Copyright (c) 1983-1993, 1995, 1999, 2018, 2021 by Venue & Xerox Corporation.
(RETURN PROC])
(TEDIT-SEE
[LAMBDA (FILE WINDOW FORMAT) (* ; "Edited 13-Oct-2021 10:00 by rmk:")
(* ; "Edited 27-Feb-2021 20:07 by rmk:")
[LAMBDA (FILE WINDOW FORMAT TITLE) (* ; "Edited 16-Dec-2021 12:33 by rmk")
(* ; "Edited 13-Oct-2021 10:00 by rmk:")
(* ; "Edited 27-Feb-2021 20:07 by rmk:")
(* ; "Edited 1-Feb-88 19:00 by bvm:")
(* ;; "See FILE in a scrollable READONLY TEDIT window. If FILE is a LISP source file, copy first to a temporary NODIRCORE image file that interpretes the fontchange characters rather than showing black boxes.")
@ -347,28 +347,25 @@ Copyright (c) 1983-1993, 1995, 1999, 2018, 2021 by Venue & Xerox Corporation.
(IF (\TEDIT.FORMATTEDP1 STREAM)
ELSEIF (LISPSOURCEFILEP STREAM)
THEN
(* ;; "Lisp source file")
(* ;; "Lisp source file")
(SETQ SEESTREAM (OPENTEXTSTREAM))
(DSPFONT DEFAULTFONT SEESTREAM)
(COPY.TEXT.TO.IMAGE STREAM SEESTREAM)
(SETQ SEESTREAM (OPENTEXTSTREAM))
(DSPFONT DEFAULTFONT SEESTREAM)
(COPY.TEXT.TO.IMAGE STREAM SEESTREAM)
ELSE
(* ;; "Not a Lisp source file and not a Tedit file. If it is not random access, we copy it so we can scroll around.")
(* ;; "Not a Lisp source file and not a Tedit file. If it is not random access, we copy it so we can scroll around.")
(* ;; "Maybe there is a conventional way of finding out the external format of a plain-text stream (an EMACS header?), here we nudge towards :UTF-8 (if it exists).")
(* ;; "Maybe there is a conventional way of finding out the external format of a plain-text stream (an EMACS header?), here we nudge towards :UTF-8 (if it exists).")
(SETFILEINFO STREAM 'FORMAT (OR FORMAT (FIND-FORMAT :UTF-8)
:DEFAULT))
(CL:UNLESS (RANDACCESSP STREAM)
(SETQ SEESTREAM (OPENSTREAM '{NODIRCORE} 'BOTH 'NEW))
(COPYCHARS STREAM SEESTREAM)))
[SETQ TSTREAM (TEXTSTREAM (TEDIT SEESTREAM WINDOW NIL
`(READONLY T FONT ,DEFAULTFONT]
(WINDOWPROP (WFROMDS TSTREAM)
(SETFILEINFO STREAM 'FORMAT (OR FORMAT (FIND-FORMAT :UTF-8)
:DEFAULT))
(CL:UNLESS (RANDACCESSP STREAM)
(SETQ SEESTREAM (OPENSTREAM '{NODIRCORE} 'BOTH 'NEW))
(COPYCHARS STREAM SEESTREAM)))
[SETQ TSTREAM (TEXTSTREAM (TEDIT SEESTREAM WINDOW NIL `(READONLY T FONT ,DEFAULTFONT]
[WINDOWPROP (WFROMDS TSTREAM)
'TITLE
(CONCAT "SEE window for " (FULLNAME STREAM)))
(OR TITLE (CONCAT "SEE window for " (FULLNAME STREAM]
(FULLNAME STREAM])
(TEDIT.CHARWIDTH
@ -2236,7 +2233,7 @@ Copyright (c) 1983-1993, 1995, 1999, 2018, 2021 by Venue & Xerox Corporation.
(* ; "TEDIT Support information")
(RPAQQ TEDITSYSTEMDATE "13-Oct-2021 10:00:40")
(RPAQQ TEDITSYSTEMDATE "16-Dec-2021 12:34:26")
(RPAQ TEDITSUPPORT "TEditSupport.PA")
(DEFINEQ
@ -2258,23 +2255,23 @@ Copyright (c) 1983-1993, 1995, 1999, 2018, 2021 by Venue & Xerox Corporation.
(ADDTOVAR PRINTFILETYPES (TEDIT (TEST \TEDIT.FORMATTEDP1)
(EXTENSION (TEDIT))))
(EXTENSION (TEDIT))))
(PUTPROPS TEDIT COPYRIGHT ("Venue & Xerox Corporation" 1983 1984 1985 1986 1987 1988 1989 1990 1991
1992 1993 1995 1999 2018 2021))
(DECLARE%: DONTCOPY
(FILEMAP (NIL (4330 117453 (\TEDIT2 4340 . 7091) (COERCETEXTOBJ 7093 . 15869) (TEDIT 15871 . 20840) (
TEDIT-SEE 20842 . 23129) (TEDIT.CHARWIDTH 23131 . 25155) (TEDIT.COPY 25157 . 33593) (TEDIT.DELETE
33595 . 34285) (TEDIT.DO.BLUEPENDINGDELETE 34287 . 37354) (TEDIT.INSERT 37356 . 42886) (TEDIT.KILL
42888 . 44445) (TEDIT.MAPLINES 44447 . 45846) (TEDIT.MAPPIECES 45848 . 46804) (TEDIT.MOVE 46806 .
56590) (TEDIT.QUIT 56592 . 58592) (TEDIT.STRINGWIDTH 58594 . 59265) (TEDIT.\INSERT 59267 . 61292) (
TEXTOBJ 61294 . 62419) (TEXTSTREAM 62421 . 64036) (\TEDIT.INCLUDE 64038 . 67938) (\TEDIT.INSERT.PIECES
67940 . 77855) (\TEDIT.MOVE.PIECEMAPFN 77857 . 79936) (\TEDIT.OBJECT.SHOWSEL 79938 . 83567) (
\TEDIT.RESTARTFN 83569 . 85564) (\TEDIT.CHARDELETE 85566 . 89528) (\TEDIT.COPY.PIECEMAPFN 89530 .
92755) (\TEDIT.DELETE 92757 . 100275) (\TEDIT.DIFFUSE.PARALOOKS 100277 . 103041) (\TEDIT.FOREIGN.COPY?
103043 . 106770) (\TEDIT.QUIT 106772 . 109918) (\TEDIT.WORDDELETE 109920 . 114753) (\TEDIT1 114755 .
117451)) (117567 117683 (\CREATE.TEDIT.RESTART.MENU 117577 . 117681)) (117782 121471 (PLCHAIN 117792
. 118066) (PRINTLINE 118068 . 120832) (SEEFILE 120834 . 121469)) (121512 141155 (TEDIT.INSERT.OBJECT
121522 . 130599) (TEDIT.EDIT.OBJECT 130601 . 132857) (TEDIT.FIND.OBJECT 132859 . 133752) (
TEDIT.FIND.OBJECT.SUBTREE 133754 . 134560) (TEDIT.PUT.OBJECT 134562 . 136221) (TEDIT.GET.OBJECT 136223
. 139422) (TEDIT.OBJECT.CHANGED 139424 . 141153)) (141433 141796 (MAKETEDITFORM 141443 . 141794)))))
(FILEMAP (NIL (4330 117494 (\TEDIT2 4340 . 7091) (COERCETEXTOBJ 7093 . 15869) (TEDIT 15871 . 20840) (
TEDIT-SEE 20842 . 23170) (TEDIT.CHARWIDTH 23172 . 25196) (TEDIT.COPY 25198 . 33634) (TEDIT.DELETE
33636 . 34326) (TEDIT.DO.BLUEPENDINGDELETE 34328 . 37395) (TEDIT.INSERT 37397 . 42927) (TEDIT.KILL
42929 . 44486) (TEDIT.MAPLINES 44488 . 45887) (TEDIT.MAPPIECES 45889 . 46845) (TEDIT.MOVE 46847 .
56631) (TEDIT.QUIT 56633 . 58633) (TEDIT.STRINGWIDTH 58635 . 59306) (TEDIT.\INSERT 59308 . 61333) (
TEXTOBJ 61335 . 62460) (TEXTSTREAM 62462 . 64077) (\TEDIT.INCLUDE 64079 . 67979) (\TEDIT.INSERT.PIECES
67981 . 77896) (\TEDIT.MOVE.PIECEMAPFN 77898 . 79977) (\TEDIT.OBJECT.SHOWSEL 79979 . 83608) (
\TEDIT.RESTARTFN 83610 . 85605) (\TEDIT.CHARDELETE 85607 . 89569) (\TEDIT.COPY.PIECEMAPFN 89571 .
92796) (\TEDIT.DELETE 92798 . 100316) (\TEDIT.DIFFUSE.PARALOOKS 100318 . 103082) (\TEDIT.FOREIGN.COPY?
103084 . 106811) (\TEDIT.QUIT 106813 . 109959) (\TEDIT.WORDDELETE 109961 . 114794) (\TEDIT1 114796 .
117492)) (117608 117724 (\CREATE.TEDIT.RESTART.MENU 117618 . 117722)) (117823 121512 (PLCHAIN 117833
. 118107) (PRINTLINE 118109 . 120873) (SEEFILE 120875 . 121510)) (121553 141196 (TEDIT.INSERT.OBJECT
121563 . 130640) (TEDIT.EDIT.OBJECT 130642 . 132898) (TEDIT.FIND.OBJECT 132900 . 133793) (
TEDIT.FIND.OBJECT.SUBTREE 133795 . 134601) (TEDIT.PUT.OBJECT 134603 . 136262) (TEDIT.GET.OBJECT 136264
. 139463) (TEDIT.OBJECT.CHANGED 139465 . 141194)) (141474 141837 (MAKETEDITFORM 141484 . 141835)))))
STOP

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@ -1,220 +0,0 @@
(DEFINE-FILE-INFO READTABLE "XCL" PACKAGE "INTERLISP")
(FILECREATED "10-Sep-87 12:12:37" {DSK}<OST>STREAMDECLS.\;1 10202
|changes| |to:| (VARS STREAMDECLSCOMS)
(RECORDS STREAM))
(PRETTYCOMPRINT STREAMDECLSCOMS)
(RPAQQ STREAMDECLSCOMS ((RECORDS STREAM)))
(DECLARE\: EVAL@COMPILE
(DATATYPE STREAM
(
(* |;;| "First 8 words are fixed for BIN, BOUT opcodes. Used to require length of whole datatype be multiple of 4, but Dolphin dead now.")
(COFFSET WORD) (* \;
 "Offset in CPPTR of next bin or bout")
(CBUFSIZE WORD) (* \;
 "Offset past last byte in that buffer")
(BINABLE FLAG) (* \; "BIN punts unless this bit on")
(BOUTABLE FLAG) (* \; "BOUT punts unless this bit on")
(EXTENDABLE FLAG) (* \;
 "BOUT punts when COFFSET ge CBUFFSIZE unless this bit set and COFFSET lt 512")
(CBUFDIRTY FLAG) (* \;
 "true if BOUT has sullied the current buffer")
(PEEKEDCHARP FLAG) (* \;
 "if true, PEEKEDCHAR contains value of recent call to unread-char")
(ACCESSBITS BITS 3) (* \;
 "What kind of access file is open for (read, write, append)")
(CBUFPTR POINTER) (* \; "Pointer to current buffer")
(BYTESIZE BYTE) (* \;
 "Byte size of stream, always 8 for now")
(CHARSET BYTE) (* \; "the current character set for this stream. If 255, stream is not runcoded, so read-char consumes two bytes every time")
(PEEKEDCHAR WORD) (* \; "value of unread-char call")
(CHARPOSITION WORD) (* \; "Used by POSITION etc.")
(CBUFMAXSIZE WORD) (* \;
 "on output, the size of the physical buffer--can't extend beyond this")
(* |;;| "-------- Above fields (8 words) potentially known to microcode. --------")
(NONDEFAULTDATEFLG FLAG)
(REVALIDATEFLG FLAG)
(MULTIBUFFERHINT FLAG) (* \;
 "True if stream likes to read and write more than one buffer at a time")
(USERCLOSEABLE FLAG) (* \;
 "Can be closed by CLOSEF; NIL for terminal, dribble...")
(USERVISIBLE FLAG) (* \;
 "Listed by OPENP; NIL for terminal, dribble ...")
(EOLCONVENTION BITS 2) (* \; "End-of-line convention")
(NIL FLAG)
(FULLFILENAME POINTER) (* \;
 "Name by which file is known to user")
(DEVICE POINTER) (* \; "FDEV of this guy")
(VALIDATION POINTER) (* \;
 "A number somehow identifying file, used to determine if file has changed in our absence")
(CPAGE POINTER) (* \;
 "CPAGE,,COFFSET constitutes current file pointer for most randaccess streams")
(EPAGE POINTER)
(EOFFSET WORD) (* \; "Page, byte offset of eof")
(LINELENGTH WORD) (* \;
 "LINELENGTH of stream, or -1 for no line length")
(* |;;| "----Following are device-specific fields----")
(F1 POINTER)
(F2 POINTER)
(F3 POINTER)
(F4 POINTER)
(F5 POINTER)
(FW6 WORD)
(FW7 WORD)
(FW8 WORD)
(FW9 WORD)
(F10 POINTER)
(* |;;| "----Following only filled in for open streams----")
(STRMBINFN POINTER) (* \;
 "Either the BIN fn from the FDEV, or a trap")
(STRMBOUTFN POINTER) (* \;
 "Either the BIN fn from the FDEV, or a trap")
(OUTCHARFN POINTER)
(ENDOFSTREAMOP POINTER)
(OTHERPROPS POINTER)
(IMAGEOPS POINTER) (* \; "Image operations vector")
(IMAGEDATA POINTER) (* \;
 "Image instance variables--format depends on IMAGEOPS value")
(BUFFS POINTER) (* \; "Buffer chain for pmapped streams")
(MAXBUFFERS WORD)
(NIL WORD)
(EXTRASTREAMOP POINTER) (* \;
 "For use of applications programs, not devices")
)
(BLOCKRECORD STREAM ((NIL 2 WORD)
(UCODEFLAGS BITS 5)
(* |;;| "respecification of access bits:")
(RANDOMWRITEABLE FLAG) (* \;
 "File open for output (access = OUTPUT or BOTH)")
(APPENDABLE FLAG) (* \;
 "File open for append (OUTPUT or APPEND or BOTH)")
(READABLE FLAG) (* \;
 "File open for read (READ or BOTH)")
(NIL POINTER)))
(ACCESSFNS STREAM ((ACCESS \\GETACCESS \\SETACCESS)
(FULLNAME (OR (|fetch| (STREAM FULLFILENAME) |of| DATUM)
DATUM))
(NAMEDP (AND (|fetch| (STREAM FULLFILENAME) |of| DATUM)
T))))
(SYNONYM CBUFPTR (CPPTR))
USERCLOSEABLE _ T USERVISIBLE _ T ACCESSBITS _ |NoBits| CPAGE _ 0 EPAGE _ 0 BUFFS _ NIL
BYTESIZE _ 8 CBUFPTR _ NIL MAXBUFFERS _ (LET NIL (DECLARE (GLOBALVARS
\\STREAM.DEFAULT.MAXBUFFERS
))
\\STREAM.DEFAULT.MAXBUFFERS)
CHARPOSITION _ 0 LINELENGTH _ (LET NIL (DECLARE (GLOBALVARS FILELINELENGTH))
FILELINELENGTH)
OUTCHARFN _ (FUNCTION \\FILEOUTCHARFN)
ENDOFSTREAMOP _ (FUNCTION \\EOSERROR)
IMAGEOPS _ \\NOIMAGEOPS EOLCONVENTION _ (SELECTQ (SYSTEMTYPE)
(D CR.EOLC)
(VAX LF.EOLC)
(JERICHO CRLF.EOLC)
CR.EOLC)
STRMBINFN _ (FUNCTION \\STREAM.NOT.OPEN)
STRMBOUTFN _ (FUNCTION \\STREAM.NOT.OPEN))
)
(/DECLAREDATATYPE 'STREAM
'(WORD WORD FLAG FLAG FLAG FLAG FLAG (BITS 3)
POINTER BYTE BYTE WORD WORD WORD FLAG FLAG FLAG FLAG FLAG (BITS 2)
FLAG POINTER POINTER POINTER POINTER POINTER WORD WORD POINTER POINTER POINTER POINTER
POINTER WORD WORD WORD WORD POINTER POINTER POINTER POINTER POINTER POINTER POINTER
POINTER POINTER WORD WORD POINTER)
'((STREAM 0 (BITS . 15))
(STREAM 1 (BITS . 15))
(STREAM 2 (FLAGBITS . 0))
(STREAM 2 (FLAGBITS . 16))
(STREAM 2 (FLAGBITS . 32))
(STREAM 2 (FLAGBITS . 48))
(STREAM 2 (FLAGBITS . 64))
(STREAM 2 (BITS . 82))
(STREAM 2 POINTER)
(STREAM 4 (BITS . 7))
(STREAM 4 (BITS . 135))
(STREAM 5 (BITS . 15))
(STREAM 6 (BITS . 15))
(STREAM 7 (BITS . 15))
(STREAM 8 (FLAGBITS . 0))
(STREAM 8 (FLAGBITS . 16))
(STREAM 8 (FLAGBITS . 32))
(STREAM 8 (FLAGBITS . 48))
(STREAM 8 (FLAGBITS . 64))
(STREAM 8 (BITS . 81))
(STREAM 8 (FLAGBITS . 112))
(STREAM 8 POINTER)
(STREAM 10 POINTER)
(STREAM 12 POINTER)
(STREAM 14 POINTER)
(STREAM 16 POINTER)
(STREAM 18 (BITS . 15))
(STREAM 19 (BITS . 15))
(STREAM 20 POINTER)
(STREAM 22 POINTER)
(STREAM 24 POINTER)
(STREAM 26 POINTER)
(STREAM 28 POINTER)
(STREAM 30 (BITS . 15))
(STREAM 31 (BITS . 15))
(STREAM 32 (BITS . 15))
(STREAM 33 (BITS . 15))
(STREAM 34 POINTER)
(STREAM 36 POINTER)
(STREAM 38 POINTER)
(STREAM 40 POINTER)
(STREAM 42 POINTER)
(STREAM 44 POINTER)
(STREAM 46 POINTER)
(STREAM 48 POINTER)
(STREAM 50 POINTER)
(STREAM 52 (BITS . 15))
(STREAM 53 (BITS . 15))
(STREAM 54 POINTER))
'56)
(DECLARE\: DONTCOPY
(FILEMAP (NIL)))
STOP

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@ -1,14 +1,18 @@
(DEFINE-FILE-INFO READTABLE "INTERLISP" PACKAGE "INTERLISP")
(FILECREATED "23-Dec-98 17:05:12" {DSK}<project>medley3.5>lispusers>comparetext.;3 39844
(DEFINE-FILE-INFO PACKAGE "INTERLISP" READTABLE "INTERLISP" BASE 10)
changes to%: (FNS IMCOMPARE.HASH IMCOMPARE.COLLECT.HASH.CHUNKS)
(VARS COMPARETEXTCOMS)
(FILECREATED "16-Dec-2021 10:57:35" 
{DSK}<Users>kaplan>Local>medley3.5>my-medley>lispusers>comparetext.;13 37426
previous date%: "18-Nov-93 14:43:00" {DSK}<project>medley3.5>lispusers>comparetext.;1)
:CHANGES-TO (VARS COMPARETEXTCOMS)
(FNS IMCOMPARE.MIDDLEBUTTONFN IMCOMPARE.DISPLAY.FILE.DIFFERENCE.GRAPH
IMCOMPARE.FIND.TEDIT.TEXT.OBJECT)
:PREVIOUS-DATE "15-Dec-2021 17:00:06"
{DSK}<Users>kaplan>Local>medley3.5>my-medley>lispusers>comparetext.;9)
(* ; "
Copyright (c) 1984, 1985, 1993, 1998 by Xerox Corporation. All rights reserved.
Copyright (c) 1984-1985, 1993, 1998 by Xerox Corporation.
")
(PRETTYCOMPRINT COMPARETEXTCOMS)
@ -22,9 +26,8 @@ Copyright (c) 1984, 1985, 1993, 1998 by Xerox Corporation. All rights reserved.
IMCOMPARE.MERGE.UNCONNECTED.CHUNKS IMCOMPARE.MIDDLEBUTTONFN IMCOMPARE.SHOW.DIST
IMCOMPARE.UPDATE.SYMBOL.TABLE)
(P (MOVD 'COMPARETEXT 'IMCOMPARE))
(VARS (IMCOMPARE.LAST.NODE NIL)
(IMCOMPARE.LAST.GRAPH.WINDOW NIL)
(IMCOMPARE.HASH.TYPE.MENU NIL))
(INITVARS (IMCOMPARE.LAST.NODE NIL)
(IMCOMPARE.LAST.GRAPH.WINDOW NIL))
(RECORDS IMCOMPARE.CHUNK IMCOMPARE.SYMB)
(FILES GRAPHER)))
(DECLARE%: EVAL@COMPILE
@ -35,44 +38,43 @@ Copyright (c) 1984, 1985, 1993, 1998 by Xerox Corporation. All rights reserved.
(DEFINEQ
(COMPARETEXT
[LAMBDA (NEWFILENAME OLDFILENAME HASH.TYPE GRAPH.REGION)
[LAMBDA (NEWFILENAME OLDFILENAME HASH.TYPE GRAPH.REGION FILELABELS)
(* ; "Edited 15-Dec-2021 16:23 by rmk")
(* ; "Edited 13-Dec-2021 12:21 by rmk")
(* ; "Edited 8-Nov-2021 08:44 by rmk:")
(* mjs " 8-Jan-84 21:06")
(* Compares the two files, and produces a graph showing their corresponding
 chunks. The courseness of the "chunking" is determined by HASH.TYPE, which may
 be PARA, LINE, or WORD. HASH.TYPE = NIL defaults to PARA.
 The file difference graph is displayed at GRAPHREGION.
 If GRAPH.REGION = NIL, the user is asked to specify a region.
 If GRAPH.REGION = T, a standard region is used.)
(* ;; "Compares the two files, and produces a graph showing their corresponding chunks. The courseness of the 'chunking' is determined by HASH.TYPE, which may be PARA, LINE, or WORD. HASH.TYPE = NIL defaults to PARA. The file difference graph is displayed at GRAPHREGION. If GRAPH.REGION = NIL, the user is asked to specify a region. If GRAPH.REGION = T, a standard region is used.")
(PROG ((NEWFILE (FINDFILE NEWFILENAME T))
(OLDFILE (FINDFILE OLDFILENAME T)))
(if (AND OLDFILE NEWFILE)
then (* compare the two "chunks"
 consisting of the entire text of the
 two files)
(IMCOMPARE.CHUNKS (create IMCOMPARE.CHUNK
FILENAME _ NEWFILE
FILEPTR _ 0
CHUNKLENGTH _ (GETFILEINFO NEWFILE 'LENGTH))
(create IMCOMPARE.CHUNK
FILENAME _ OLDFILE
(SELECTQ HASH.TYPE
((PARA LINE WORD))
(NIL (SETQ HASH.TYPE 'PARA))
(ERROR (CONCAT "Unrecognize HASHTYPE " HASH.TYPE)))
(LET ((NEWFILE (FINDFILE NEWFILENAME T))
(OLDFILE (FINDFILE OLDFILENAME T)))
(CL:UNLESS (AND OLDFILE NEWFILE)
(ERROR "Can't find both files" (LIST NEWFILENAME OLDFILENAME)))
(IMCOMPARE.CHUNKS (create IMCOMPARE.CHUNK
FILENAME _ NEWFILE
FILEPTR _ 0
CHUNKLENGTH _ (GETFILEINFO OLDFILE 'LENGTH))
HASH.TYPE
(if (EQ GRAPH.REGION T)
then (create REGION
LEFT _ 25
BOTTOM _ 25
WIDTH _ 500
HEIGHT _ 150)
elseif GRAPH.REGION
else (CLRPROMPT)
(printout PROMPTWINDOW
"Please specify a window for the file difference graph" T)
(GETREGION)))
else (printout T "Can't find both files: " NEWFILENAME " & " OLDFILENAME
" --- IMCOMPARE aborted" T])
CHUNKLENGTH _ (GETFILEINFO NEWFILE 'LENGTH))
(create IMCOMPARE.CHUNK
FILENAME _ OLDFILE
FILEPTR _ 0
CHUNKLENGTH _ (GETFILEINFO OLDFILE 'LENGTH))
HASH.TYPE
(if (EQ GRAPH.REGION T)
then (create REGION
LEFT _ 25
BOTTOM _ 25
WIDTH _ 500
HEIGHT _ 150)
elseif GRAPH.REGION
else (CLRPROMPT)
(printout PROMPTWINDOW "Please specify a window for the file difference graph"
T)
(GETREGION))
FILELABELS])
(IMCOMPARE.BOXNODE
[LAMBDA (NODE WINDOW) (* rmk%: "14-Dec-84 13:40")
@ -86,359 +88,279 @@ Copyright (c) 1984, 1985, 1993, 1998 by Xerox Corporation. All rights reserved.
(SETQ IMCOMPARE.LAST.GRAPH.WINDOW WINDOW])
(IMCOMPARE.CHUNKS
[LAMBDA (NEWFILE.SPEC.CHUNK OLDFILE.SPEC.CHUNK HASH.TYPE GRAPH.REGION)
[LAMBDA (NEWFILE.SPEC.CHUNK OLDFILE.SPEC.CHUNK HASH.TYPE GRAPH.REGION FILELABELS)
(* ; "Edited 15-Dec-2021 16:28 by rmk")
(* ; "Edited 13-Dec-2021 12:32 by rmk")
(* rmk%: " 8-Sep-84 00:06")
(* this is the main text-comparison function.
 It compares the text in the two chunks <which may be small pieces of files, or
 entire files> and produces a graph showing how the sub-chunks of the two main
 chunks are related. The two main chunks may be in the same file, and the file
 may actually be an open Tedit textstream.
 The main chunks are broken down according to HASH.TYPE, which may be PARA
 <chunk by paragraph>, LINE, or WORD. HASH.TYPE = NIL defaults to PARA.
 The file difference graph is displayed at GRAPH.REGION.)
(* ;; "This is the main text-comparison function. It compares the text in the two chunks <which may be small pieces of files, or entire files> and produces a graph showing how the sub-chunks of the two main chunks are related. The two main chunks may be in the same file, and the file may actually be an open Tedit textstream. The main chunks are broken down according to HASH.TYPE, which may be PARA <chunk by paragraph>, LINE, WORD, or PARA. The file difference graph is displayed at GRAPH.REGION.")
(* this text comparison algorithm is originally from the article
 "A Technique for Isolating Differences Between Files" by Paul Heckel, in CACM,
 V21, %#4, April 1978 --- major difference is that I use lists instead of arrays)
(* ;; "This text comparison algorithm is originally from the article 'A Technique for Isolating Differences Between Files' by Paul Heckel, in CACM, V21, #4, April 1978 --- major difference is that I use lists instead of arrays")
(PROG ((CHUNK.SYMBOL.TABLE (HASHARRAY 500))
NEWFILE.CHUNK.LIST OLDFILE.CHUNK.LIST)
(* ;; "")
(* * collect lists of chunks from each of the main chunks, dividing them
 according to HASH.TYPE)
(* ;; "Collect lists of chunks from each of the main chunks, dividing them according to HASH.TYPE. We start with whole-file chunks to provide the interface that the")
(SETQ NEWFILE.CHUNK.LIST (IMCOMPARE.COLLECT.HASH.CHUNKS NEWFILE.SPEC.CHUNK HASH.TYPE))
(SETQ OLDFILE.CHUNK.LIST (IMCOMPARE.COLLECT.HASH.CHUNKS OLDFILE.SPEC.CHUNK HASH.TYPE))
(LET ((CHUNK.SYMBOL.TABLE (HASHARRAY 500))
(NEWFILE.CHUNK.LIST (IMCOMPARE.COLLECT.HASH.CHUNKS NEWFILE.SPEC.CHUNK HASH.TYPE))
(OLDFILE.CHUNK.LIST (IMCOMPARE.COLLECT.HASH.CHUNKS OLDFILE.SPEC.CHUNK HASH.TYPE)))
(* * update the chunk symbol table. For each hash value, this table records the
 number of "new" chunks with that hash value, the number of "old" chunks with
 that value, and a pointer to the place in OLD.CHUNK.LIST <not to an OLD chunk
 itself>.)
(* ;; "Update the chunk symbol table. For each hash value, this table records the number of 'new' chunks with that hash value, the number of 'old' chunks with that value, and a pointer to the place in OLD.CHUNK.LIST <not to an OLD c hunk itself>.")
(IMCOMPARE.UPDATE.SYMBOL.TABLE NEWFILE.CHUNK.LIST CHUNK.SYMBOL.TABLE NIL)
(IMCOMPARE.UPDATE.SYMBOL.TABLE OLDFILE.CHUNK.LIST CHUNK.SYMBOL.TABLE T)
(IMCOMPARE.UPDATE.SYMBOL.TABLE NEWFILE.CHUNK.LIST CHUNK.SYMBOL.TABLE NIL)
(IMCOMPARE.UPDATE.SYMBOL.TABLE OLDFILE.CHUNK.LIST CHUNK.SYMBOL.TABLE T)
(* * For every new chunk whose hash value matches EXACTLY ONE old chunk's
 value, "connect" it to the old chunk by setting the new chunk's OTHERCHUNK
 field to point to the appropriate place in the old chunk list <not the old
 chunk directly>. Also, make sure that OTHERCHUNK of the matching old chunk is
 non-NIL, so that unconnected old chunks will be merged correctly.)
(* ;; "For every new chunk whose hash value matches EXACTLY ONE old chunk's value, 'connect' it to the old chunk by setting the new chunk's OTHERCHUNK field to point to the appropriate place in the old chunk list <not the old chunk directly>. Also, make sure that OTHERCHUNK of the matching old chunk is non-NIL, so that unconnected old chunks will be merged correctly.")
(for NEW.CHUNK in NEWFILE.CHUNK.LIST bind SYMB
do (SETQ SYMB (GETHASH (fetch (IMCOMPARE.CHUNK HASHVALUE) of NEW.CHUNK)
CHUNK.SYMBOL.TABLE))
(if (AND (EQ 1 (fetch (IMCOMPARE.SYMB NEWCOUNT) of SYMB))
(EQ 1 (fetch (IMCOMPARE.SYMB OLDCOUNT) of SYMB)))
then (replace (IMCOMPARE.CHUNK OTHERCHUNK) of NEW.CHUNK
with (fetch (IMCOMPARE.SYMB OLDPTR) of SYMB))
(replace (IMCOMPARE.CHUNK OTHERCHUNK)
of (CAR (fetch (IMCOMPARE.SYMB OLDPTR) of SYMB))
with T)))
(for NEW.CHUNK in NEWFILE.CHUNK.LIST bind SYMB
do (SETQ SYMB (GETHASH (fetch (IMCOMPARE.CHUNK HASHVALUE) of NEW.CHUNK)
CHUNK.SYMBOL.TABLE))
(if (AND (EQ 1 (fetch (IMCOMPARE.SYMB NEWCOUNT) of SYMB))
(EQ 1 (fetch (IMCOMPARE.SYMB OLDCOUNT) of SYMB)))
then (replace (IMCOMPARE.CHUNK OTHERCHUNK) of NEW.CHUNK with (fetch (
IMCOMPARE.SYMB
OLDPTR)
of SYMB))
(replace (IMCOMPARE.CHUNK OTHERCHUNK) of (CAR (fetch (IMCOMPARE.SYMB OLDPTR)
of SYMB)) with T)))
(* * merge connected chunks forward)
(* ;; "Merge connected chunks forward")
(IMCOMPARE.MERGE.CONNECTED.CHUNKS NEWFILE.CHUNK.LIST NIL)
(IMCOMPARE.MERGE.CONNECTED.CHUNKS NEWFILE.CHUNK.LIST NIL)
(* * merge connected chunks backwards)
(* ;; "Merge connected chunks backwards")
(SETQ NEWFILE.CHUNK.LIST (DREVERSE NEWFILE.CHUNK.LIST))
(SETQ OLDFILE.CHUNK.LIST (DREVERSE OLDFILE.CHUNK.LIST))
(IMCOMPARE.MERGE.CONNECTED.CHUNKS NEWFILE.CHUNK.LIST T)
(SETQ NEWFILE.CHUNK.LIST (DREVERSE NEWFILE.CHUNK.LIST))
(SETQ OLDFILE.CHUNK.LIST (DREVERSE OLDFILE.CHUNK.LIST))
(SETQ NEWFILE.CHUNK.LIST (DREVERSE NEWFILE.CHUNK.LIST))
(SETQ OLDFILE.CHUNK.LIST (DREVERSE OLDFILE.CHUNK.LIST))
(IMCOMPARE.MERGE.CONNECTED.CHUNKS NEWFILE.CHUNK.LIST T)
(SETQ NEWFILE.CHUNK.LIST (DREVERSE NEWFILE.CHUNK.LIST))
(SETQ OLDFILE.CHUNK.LIST (DREVERSE OLDFILE.CHUNK.LIST))
(* * merge unconnected chunks)
(* ;; "Merge unconnected chunks")
(IMCOMPARE.MERGE.UNCONNECTED.CHUNKS NEWFILE.CHUNK.LIST)
(IMCOMPARE.MERGE.UNCONNECTED.CHUNKS OLDFILE.CHUNK.LIST)
(IMCOMPARE.MERGE.UNCONNECTED.CHUNKS NEWFILE.CHUNK.LIST)
(IMCOMPARE.MERGE.UNCONNECTED.CHUNKS OLDFILE.CHUNK.LIST)
(* * now, the file comparison is complete.
 Format and display the file difference graph)
(* ;; "The file comparison is complete. Format and display the file difference graph")
(IMCOMPARE.DISPLAY.FILE.DIFFERENCE.GRAPH NEWFILE.SPEC.CHUNK OLDFILE.SPEC.CHUNK
HASH.TYPE GRAPH.REGION NEWFILE.CHUNK.LIST OLDFILE.CHUNK.LIST])
(IMCOMPARE.DISPLAY.FILE.DIFFERENCE.GRAPH NEWFILE.SPEC.CHUNK OLDFILE.CHUNK.LIST HASH.TYPE
GRAPH.REGION NEWFILE.CHUNK.LIST OLDFILE.CHUNK.LIST FILELABELS])
(IMCOMPARE.COLLECT.HASH.CHUNKS
[LAMBDA (CHUNK HASH.TYPE) (* ; "Edited 23-Dec-98 16:54 by rmk:")
(* mjs " 8-Jan-84 20:57")
[LAMBDA (CHUNK HASH.TYPE) (* ; "Edited 15-Dec-2021 15:40 by rmk")
(* ; "Edited 13-Dec-2021 16:32 by rmk")
(* ; "Edited 23-Dec-98 16:54 by rmk:")
(* mjs " 8-Jan-84 20:57")
(* * returns a list of the chunks in CHUNK as hashed of type HASH.TYPE)
(* ;;; "returns a list of the chunks inside CHUNK as hashed of type HASH.TYPE. Presumably CHUNK is is higher on the ranking PARA > LINE >. WORD. The initial CHUNK covers the whole file, middle-mouse refinement-chunks cover only subsections.")
(LET (STREAM END.OF.CHUNK.PTR CHUNK.LIST)
[SETQ STREAM (OPENSTREAM (fetch (IMCOMPARE.CHUNK FILENAME) of CHUNK)
'INPUT
'OLD
'((TYPE TEXT]
(SETFILEPTR STREAM (fetch (IMCOMPARE.CHUNK FILEPTR) of CHUNK))
(SETQ END.OF.CHUNK.PTR (IPLUS (fetch (IMCOMPARE.CHUNK FILEPTR) of CHUNK)
(fetch (IMCOMPARE.CHUNK CHUNKLENGTH) of CHUNK)))
(SETQ CHUNK.LIST (until (IGEQ (GETFILEPTR STREAM)
END.OF.CHUNK.PTR) collect (IMCOMPARE.HASH STREAM
END.OF.CHUNK.PTR
HASH.TYPE)))
(CLOSEF STREAM)
CHUNK.LIST])
(BIND [STREAM _ (OPENSTREAM (fetch (IMCOMPARE.CHUNK FILENAME) of CHUNK)
'INPUT
'OLD
'((TYPE TEXT)
(EOLCONVENTION ANY]
(ENDPOS _ (IPLUS (fetch (IMCOMPARE.CHUNK FILEPTR) of CHUNK)
(fetch (IMCOMPARE.CHUNK CHUNKLENGTH) of CHUNK)))
(FILENAME _ (fetch (IMCOMPARE.CHUNK FILENAME) of CHUNK))
FIRST (SETFILEPTR STREAM (fetch (IMCOMPARE.CHUNK FILEPTR) of CHUNK))
WHILE (SETQ CHUNK (IMCOMPARE.HASH STREAM HASH.TYPE ENDPOS FILENAME)) COLLECT CHUNK
FINALLY (CLOSEF STREAM])
(IMCOMPARE.DISPLAY.FILE.DIFFERENCE.GRAPH
[LAMBDA (NEWFILE.SPEC.CHUNK OLDFILE.SPEC.CHUNK HASH.TYPE GRAPH.REGION NEWFILE.CHUNK.LIST
OLDFILE.CHUNK.LIST) (* mjs "11-Jul-85 09:10")
OLDFILE.CHUNK.LIST FILELABELS) (* ; "Edited 16-Dec-2021 10:48 by rmk")
(* ; "Edited 13-Dec-2021 12:19 by rmk")
(* mjs "11-Jul-85 09:10")
(* * format and display the graph)
(* ;;; "format and display the graph")
(PROG ((NEWFILENAME (fetch (IMCOMPARE.CHUNK FILENAME) of NEWFILE.SPEC.CHUNK))
(OLDFILENAME (fetch (IMCOMPARE.CHUNK FILENAME) of OLDFILE.SPEC.CHUNK))
(OLD.CHUNK.NODE.FROM.NODES NIL)
(BORDERSIZE 1)
GRAPH.WINDOW NEW.CHUNK.NODES OLD.CHUNK.NODES OLD.CHUNK.XCOORD NEW.CHUNK.XCOORD
YCOORD.INCREMENT DIFF.GRAPH)
(LET ((NEWFILENAME (fetch (IMCOMPARE.CHUNK FILENAME) of NEWFILE.SPEC.CHUNK))
(OLDFILENAME (fetch (IMCOMPARE.CHUNK FILENAME) of OLDFILE.SPEC.CHUNK))
NEWFILELABEL OLDFILELABEL (OLD.CHUNK.NODE.FROM.NODES NIL)
(BORDERSIZE 1)
GRAPH.WINDOW NEW.CHUNK.NODES OLD.CHUNK.NODES OLD.CHUNK.XCOORD NEW.CHUNK.XCOORD
YCOORD.INCREMENT DIFF.GRAPH)
(* * set up GRAPH.WINDOW. This is done first so you can get the width and
 height of strings to be printed in the window.)
(* ;;; "set up GRAPH.WINDOW. This is done first so you can get the width and height of strings to be printed in the window.")
[SETQ GRAPH.WINDOW (CREATEW GRAPH.REGION (CONCAT "Text File Differences, hashed by "
(SELECTQ HASH.TYPE
((PARA NIL)
"Paragraph")
(LINE "Line")
(WORD "Word")
(SHOULDNT]
(WINDOWPROP GRAPH.WINDOW 'IMPARE.HASH.TYPE HASH.TYPE)
[WINDOWADDPROP GRAPH.WINDOW 'CLOSEFN (FUNCTION (LAMBDA (WINDOW)
(if (EQ WINDOW
IMCOMPARE.LAST.GRAPH.WINDOW)
then (SETQ
IMCOMPARE.LAST.GRAPH.WINDOW
NIL)
(SETQ IMCOMPARE.LAST.NODE NIL]
(SETQ NEW.CHUNK.XCOORD (IQUOTIENT (STRINGWIDTH NEWFILENAME GRAPH.WINDOW)
2))
[SETQ OLD.CHUNK.XCOORD (IPLUS NEW.CHUNK.XCOORD (IMAX 100 (IPLUS NEW.CHUNK.XCOORD
(IQUOTIENT (STRINGWIDTH
OLDFILENAME
GRAPH.WINDOW)
2)
20]
[SETQ YCOORD.INCREMENT (IMINUS (IPLUS 2 (ITIMES 2 BORDERSIZE)
(fetch (REGION HEIGHT) of (STRINGREGION
NEWFILENAME
GRAPH.WINDOW]
(SETQ NEWFILELABEL (OR (CAR (LISTP FILELABELS))
NEWFILENAME))
(SETQ OLDFILELABEL (OR (CADR (LISTP FILELABELS))
OLDFILENAME))
[SETQ GRAPH.WINDOW (CREATEW GRAPH.REGION (CONCAT "Text File Differences, hashed by "
(SELECTQ HASH.TYPE
((PARA NIL)
"Paragraph")
(LINE "Line")
(WORD "Word")
(SHOULDNT]
(WINDOWPROP GRAPH.WINDOW 'IMPARE.HASH.TYPE HASH.TYPE)
[WINDOWADDPROP GRAPH.WINDOW 'CLOSEFN (FUNCTION (LAMBDA (WINDOW)
(if (EQ WINDOW IMCOMPARE.LAST.GRAPH.WINDOW)
then (SETQ IMCOMPARE.LAST.GRAPH.WINDOW
NIL)
(SETQ IMCOMPARE.LAST.NODE NIL]
(SETQ NEW.CHUNK.XCOORD (IQUOTIENT (STRINGWIDTH NEWFILELABEL GRAPH.WINDOW)
2))
[SETQ OLD.CHUNK.XCOORD (IPLUS NEW.CHUNK.XCOORD (IMAX 100 (IPLUS NEW.CHUNK.XCOORD
(IQUOTIENT (STRINGWIDTH
OLDFILELABEL
GRAPH.WINDOW)
2)
20]
[SETQ YCOORD.INCREMENT (IMINUS (IPLUS 2 (ITIMES 2 BORDERSIZE)
(fetch (REGION HEIGHT) of (STRINGREGION NEWFILELABEL
GRAPH.WINDOW]
(* * collect new-chunk graph nodes, while accumulating
 OLD.CHUNK.NODE.FROM.NODES, assoc list from old-chunks to new-chunks)
(* ;;; "collect new-chunk graph nodes, while accumulating OLD.CHUNK.NODE.FROM.NODES, assoc list from old-chunks to new-chunks")
(SETQ NEW.CHUNK.NODES (for NEW.CHUNK in NEWFILE.CHUNK.LIST as Y from
YCOORD.INCREMENT
by YCOORD.INCREMENT bind CORRESPONDING.OLD.CHUNK
collect (SETQ CORRESPONDING.OLD.CHUNK
(CAR (fetch (IMCOMPARE.CHUNK OTHERCHUNK)
of NEW.CHUNK)))
(if CORRESPONDING.OLD.CHUNK
then (SETQ OLD.CHUNK.NODE.FROM.NODES
(CONS (CONS CORRESPONDING.OLD.CHUNK NEW.CHUNK)
OLD.CHUNK.NODE.FROM.NODES)))
(* Start out with 2 point white
 border, so we can invert it)
(NODECREATE NEW.CHUNK (IMCOMPARE.LENGTHEN.ATOM
(PACK* (fetch (IMCOMPARE.CHUNK
FILEPTR)
of NEW.CHUNK)
":"
(fetch (IMCOMPARE.CHUNK
CHUNKLENGTH)
of NEW.CHUNK))
12)
(create POSITION
XCOORD _ NEW.CHUNK.XCOORD
YCOORD _ Y)
(if CORRESPONDING.OLD.CHUNK
then (LIST CORRESPONDING.OLD.CHUNK)
else NIL)
NIL DEFAULTFONT -2)))
(SETQ OLD.CHUNK.NODES (for OLD.CHUNK in OLDFILE.CHUNK.LIST as Y from
YCOORD.INCREMENT
by YCOORD.INCREMENT bind CORRESPONDING.NEW.CHUNK
collect (SETQ CORRESPONDING.NEW.CHUNK (CDR (ASSOC OLD.CHUNK
(SETQ NEW.CHUNK.NODES (for NEW.CHUNK in NEWFILE.CHUNK.LIST as Y from YCOORD.INCREMENT
by YCOORD.INCREMENT bind CORRESPONDING.OLD.CHUNK
collect (SETQ CORRESPONDING.OLD.CHUNK (CAR (fetch (IMCOMPARE.CHUNK
OTHERCHUNK)
of NEW.CHUNK)))
(if CORRESPONDING.OLD.CHUNK
then (SETQ OLD.CHUNK.NODE.FROM.NODES
(CONS (CONS CORRESPONDING.OLD.CHUNK NEW.CHUNK)
OLD.CHUNK.NODE.FROM.NODES)))
(* ;
 "Start out with 2 point white border, so we can invert it")
(NODECREATE NEW.CHUNK (IMCOMPARE.LENGTHEN.ATOM
(PACK* (fetch (IMCOMPARE.CHUNK FILEPTR
) of NEW.CHUNK)
":"
(fetch (IMCOMPARE.CHUNK
CHUNKLENGTH)
of NEW.CHUNK))
12)
(create POSITION
XCOORD _ NEW.CHUNK.XCOORD
YCOORD _ Y)
(if CORRESPONDING.OLD.CHUNK
then (LIST CORRESPONDING.OLD.CHUNK)
else NIL)
NIL DEFAULTFONT -2)))
(SETQ OLD.CHUNK.NODES (for OLD.CHUNK in OLDFILE.CHUNK.LIST as Y from YCOORD.INCREMENT
by YCOORD.INCREMENT bind CORRESPONDING.NEW.CHUNK
collect (SETQ CORRESPONDING.NEW.CHUNK (CDR (ASSOC OLD.CHUNK
OLD.CHUNK.NODE.FROM.NODES
)))
(NODECREATE OLD.CHUNK (IMCOMPARE.LENGTHEN.ATOM
(PACK* (fetch (IMCOMPARE.CHUNK
FILEPTR)
of OLD.CHUNK)
":"
(fetch (IMCOMPARE.CHUNK
CHUNKLENGTH)
of OLD.CHUNK))
12 "-")
(create POSITION
XCOORD _ OLD.CHUNK.XCOORD
YCOORD _ Y)
NIL
(if CORRESPONDING.NEW.CHUNK
then (LIST CORRESPONDING.NEW.CHUNK)
else NIL)
DEFAULTFONT -2)))
(SETQ DIFF.GRAPH (create GRAPH
DIRECTEDFLG _ T
SIDESFLG _ T
GRAPHNODES _
(NCONC (LIST (NODECREATE NEWFILE.SPEC.CHUNK NEWFILENAME
(create POSITION
XCOORD _ NEW.CHUNK.XCOORD
YCOORD _ 0)
NIL NIL DEFAULTFONT -2))
NEW.CHUNK.NODES
(LIST (NODECREATE OLDFILE.SPEC.CHUNK OLDFILENAME
(create POSITION
XCOORD _ OLD.CHUNK.XCOORD
YCOORD _ 0)
NIL NIL DEFAULTFONT -2))
OLD.CHUNK.NODES)))
(SHOWGRAPH DIFF.GRAPH GRAPH.WINDOW (FUNCTION IMCOMPARE.LEFTBUTTONFN)
(FUNCTION IMCOMPARE.MIDDLEBUTTONFN)
T NIL])
)))
(NODECREATE OLD.CHUNK (IMCOMPARE.LENGTHEN.ATOM
(PACK* (fetch (IMCOMPARE.CHUNK FILEPTR
) of OLD.CHUNK)
":"
(fetch (IMCOMPARE.CHUNK
CHUNKLENGTH)
of OLD.CHUNK))
12 "-")
(create POSITION
XCOORD _ OLD.CHUNK.XCOORD
YCOORD _ Y)
NIL
(if CORRESPONDING.NEW.CHUNK
then (LIST CORRESPONDING.NEW.CHUNK)
else NIL)
DEFAULTFONT -2)))
(SETQ DIFF.GRAPH (create GRAPH
DIRECTEDFLG _ T
SIDESFLG _ T
GRAPHNODES _
(NCONC (LIST (NODECREATE NEWFILENAME NEWFILELABEL
(create POSITION
XCOORD _ NEW.CHUNK.XCOORD
YCOORD _ 0)
NIL NIL DEFAULTFONT -2))
NEW.CHUNK.NODES
(LIST (NODECREATE OLDFILENAME OLDFILELABEL
(create POSITION
XCOORD _ OLD.CHUNK.XCOORD
YCOORD _ 0)
NIL NIL DEFAULTFONT -2))
OLD.CHUNK.NODES)))
(GRAPHERPROP DIFF.GRAPH 'FILELABELS (LIST NEWFILELABEL OLDFILELABEL))
(* ;
 "So Middle mouse graphs can get the right labels")
(GRAPHERPROP DIFF.GRAPH 'HASH.TYPE HASH.TYPE)
(SHOWGRAPH DIFF.GRAPH GRAPH.WINDOW (FUNCTION IMCOMPARE.LEFTBUTTONFN)
(FUNCTION IMCOMPARE.MIDDLEBUTTONFN)
T NIL])
(IMCOMPARE.FIND.TEDIT.TEXT.OBJECT
[LAMBDA (FILE) (* mjs " 2-Jan-84 16:19")
[LAMBDA (FILE) (* ; "Edited 16-Dec-2021 08:40 by rmk")
(* mjs " 2-Jan-84 16:19")
(* returns the Tedit text object of the first Tedit window which is currently
 looking at FILE, if there is one. Returns NIL if none is found.)
(* ;; "returns the Tedit text object of the first Tedit window which is currently looking at FILE, if there is one. Returns NIL if none is found.")
(PROG ((TEDIT.TEXT.OBJECT NIL))
(for X in (OPENWINDOWS) bind POSS.TOBJ POSS.FILENAME
when (SETQ POSS.TOBJ (WINDOWPROP X 'TEXTOBJ)) repeatuntil TEDIT.TEXT.OBJECT
do (SETQ POSS.FILENAME (FULLNAME (fetch (TEXTOBJ TXTFILE) of POSS.TOBJ)))
(if (EQ FILE POSS.FILENAME)
then (SETQ TEDIT.TEXT.OBJECT POSS.TOBJ)))
(RETURN TEDIT.TEXT.OBJECT])
(for W in (OPENWINDOWS) bind POSS.TOBJ when [AND (SETQ POSS.TOBJ (WINDOWPROP W 'TEXTOBJ))
(EQ FILE (FULLNAME (fetch (TEXTOBJ TXTFILE)
of POSS.TOBJ]
unless (TEDIT.STREAMCHANGEDP POSS.TOBJ) do (RETURN POSS.TOBJ])
(IMCOMPARE.HASH
[LAMBDA (STREAM EOF.PTR HASH.TYPE) (* ; "Edited 23-Dec-98 16:58 by rmk:")
[LAMBDA (STREAM HASH.TYPE ENDPOS FULLNAME) (* ; "Edited 15-Dec-2021 15:58 by rmk")
(* ; "Edited 13-Dec-2021 16:35 by rmk")
(* ; "Edited 23-Dec-98 16:58 by rmk:")
(* reads caracters from STREAM and creates a hash value for the "next" "chunk"
 A chunk is a paragraph ending in two consecutive CRs <HASH.TYPE = NIL or PARA>,
 a line ending in a CR <HASH.TYPE = LINE>, or a word ending in any white space
 character space <HASH.TYPE = WORD>. In computing the hash value, white space is
 ignored. IMCOMPARE.HASH automatically stops before reading char number EOF.PTR
 Returns an IMCOMPARE.CHUNK containing the hash value, the file pointer of the
 beginning of the chunk, the length of the chunk, and the fullname of the stream)
(* ;; "IMCOMPARE.HASH automatically stops before reading char number EOF.PTR.")
(* Note%: Most of the time in COMPARETEXT is spent reading in and hashing
 chunks, so this function was optimizes for speed, at the expense of length)
(* ;; "Returns an IMCOMPARE.CHUNK containing the hash value, the file pointer of the beginning of the chunk, the length of the chunk, and the fullname of the stream")
(PROG ((BEGIN.FILE.PTR (GETFILEPTR STREAM))
(EOLC (GETFILEINFO STREAM 'EOL))
(HASHNUM 0)
FILE.PTR C)
(SETQ FILE.PTR BEGIN.FILE.PTR)
(SELECTQ HASH.TYPE
((NIL PARA)
(* ;; "Note: Most of the time in COMPARETEXT is spent reading in and hashing chunks, so this function was optimizes for speed, at the expense of length")
(* Paragraph chunks end with two consecutive EOL's.
 In order to detect this without slowing down the gobbling of normal chars,
 LAST.EOL.POS is set to the filepos of the last EOL detected.
 This is only checked when another EOL comes along.)
(LET ((STARTPOS (GETFILEPTR STREAM))
(HASHNUM 0)
C NBYTES)
(DECLARE (SPECVARS NBYTES))
(SETQ NBYTES (IDIFFERENCE ENDPOS STARTPOS)) (* ;
 "\INCCODE counts down. We reach NBYTES only on the chunk")
(PROG ((LAST.EOL.POS -5))
loop
(if (IGEQ FILE.PTR EOF.PTR)
then (GO return))
(SETQ FILE.PTR (ADD1 FILE.PTR))
(SELCHARQ (SETQ C (BIN STREAM))
(CR
(* ;; "Don't hash on white space")
(* If this is the second consecutive CR, this is the end of the chunk.
 Otherwise, reset LAST.EOL.POS)
(SELECTQ EOLC
(CR (if (IEQP LAST.EOL.POS (SUB1 (GETFILEPTR STREAM)))
then (GO endchunk)
else (SETQ LAST.EOL.POS (GETFILEPTR STREAM))))
(CRLF (if (IGEQ FILE.PTR EOF.PTR)
then (GO return))
(SELCHARQ (\PEEKBIN STREAM T)
(LF (SETQ FILE.PTR (ADD1 FILE.PTR))
(BIN STREAM)
(if (IEQP LAST.EOL.POS (IDIFFERENCE
(GETFILEPTR STREAM)
2))
then (GO endchunk)
else (SETQ LAST.EOL.POS (GETFILEPTR STREAM
))))
NIL))
NIL))
(LF [COND
((EQ EOLC 'LF)
(if (IEQP LAST.EOL.POS (SUB1 (GETFILEPTR STREAM)))
then (GO endchunk)
else (SETQ LAST.EOL.POS (GETFILEPTR STREAM])
((SPACE TAB))
(SETQ HASHNUM (ROT (ROT (ROT (LOGXOR HASHNUM C)
1 16)
1 16)
1 16)))
(GO loop)))
(LINE (* Line chunks end on a single CR.)
(PROG NIL
loop
(if (IGEQ FILE.PTR EOF.PTR)
then (GO return))
(SETQ FILE.PTR (ADD1 FILE.PTR))
(SELCHARQ (SETQ C (BIN STREAM))
(CR (SELECTQ EOLC
(CR (GO endchunk))
(LF)
(CRLF (if (IGEQ FILE.PTR EOF.PTR)
then (GO return))
(SELCHARQ (\PEEKBIN STREAM T)
(LF (SETQ FILE.PTR (ADD1 FILE.PTR))
(BIN STREAM)
(GO endchunk))
NIL))
(SHOULDNT)))
(LF (AND (EQ EOLC 'LF)
(GO endchunk)))
((SPACE TAB))
(SETQ HASHNUM (ROT (ROT (ROT (LOGXOR HASHNUM C)
1 16)
1 16)
1 16)))
(GO loop)))
(WORD (* word chunks end on any white
 space)
(PROG NIL
loop
(if (IGEQ FILE.PTR EOF.PTR)
then (GO return))
(SETQ FILE.PTR (ADD1 FILE.PTR))
(SELCHARQ (SETQ C (BIN STREAM))
((CR SPACE TAB LF)
(GO endchunk))
(SETQ HASHNUM (ROT (ROT (ROT (LOGXOR HASHNUM C)
1 16)
1 16)
1 16)))
(GO loop)))
(HELP (CONCAT "Unrecognize HASHTYPE " HASH.TYPE)
"
Should be PARA, LINE, or WORD"))
endchunk
(* flush all white space before next
 chunk)
(if (IGEQ FILE.PTR EOF.PTR)
then (GO return))
(SETQ FILE.PTR (ADD1 FILE.PTR))
(SELCHARQ (BIN STREAM)
((CR SPACE TAB LF)
(GO endchunk))
(PROGN (SETQ FILE.PTR (SUB1 FILE.PTR))
(SETFILEPTR STREAM FILE.PTR)))
return
(RETURN (create IMCOMPARE.CHUNK
HASHVALUE _ HASHNUM
FILEPTR _ BEGIN.FILE.PTR
CHUNKLENGTH _ (IDIFFERENCE FILE.PTR BEGIN.FILE.PTR)
FILENAME _ (FULLNAME STREAM])
(CL:WHEN (IGREATERP NBYTES 0)
(SELECTQ HASH.TYPE
(PARA (* ;
 "Paragraph chunks end with two consecutive EOL's.")
(BIND EOLSEEN WHILE (IGREATERP NBYTES 0)
DO (SELCHARQ (SETQ C (\INCCODE.EOLC STREAM NIL 'NBYTES NBYTES))
(EOL (CL:WHEN EOLSEEN (RETURN))
(SETQ EOLSEEN T) (* ; "Skip the NIL SETQ below")
(GO $$ITERATE))
((SPACE TAB))
(SETQ HASHNUM (ROT (ROT (ROT (LOGXOR HASHNUM C)
1 16)
1 16)
1 16)))
(SETQ EOLSEEN NIL)))
(LINE (* ; "Line chunks end on EOL.")
[WHILE (IGREATERP NBYTES 0)
DO (SELCHARQ (SETQ C (\INCCODE.EOLC STREAM NIL 'NBYTES NBYTES))
(EOL (RETURN))
((SPACE TAB))
(SETQ HASHNUM (ROT (ROT (ROT (LOGXOR HASHNUM C)
1 16)
1 16)
1 16])
(WORD (* ;
 "word chunks end on any white space")
[WHILE (IGREATERP NBYTES 0)
DO (SELECTQ (SETQ C (\INCCODE.EOLC STREAM NIL 'NBYTES NBYTES))
((SPACE EOL TAB)
(RETURN))
(SETQ HASHNUM (ROT (ROT (ROT (LOGXOR HASHNUM C)
1 16)
1 16)
1 16])
(SHOULDNT)) (* ;
 "flush all white space before next chunk")
(WHILE (IGREATERP NBYTES 0) DO (SELCHARQ (\INCCODE.EOLC STREAM NIL 'NBYTES NBYTES)
((EOL SPACE TAB))
(RETURN)))
(CREATE IMCOMPARE.CHUNK
HASHVALUE _ HASHNUM
FILEPTR _ STARTPOS
CHUNKLENGTH _ (IDIFFERENCE (GETFILEPTR STREAM)
STARTPOS)
FILENAME _ FULLNAME))])
(IMCOMPARE.LEFTBUTTONFN
[LAMBDA (GNODE WINDOW) (* mjs " 2-Apr-85 14:21")
@ -468,19 +390,19 @@ Copyright (c) 1984, 1985, 1993, 1998 by Xerox Corporation. All rights reserved.
else (TEDIT FILE NIL NIL (LIST 'SEL (LIST FILEPTR CHUNKLENGTH])
(IMCOMPARE.LENGTHEN.ATOM
[LAMBDA (X MIN.LENGTH EXTENDER) (* mjs "30-Dec-83 15:11")
[LAMBDA (X MIN.LENGTH EXTENDER) (* ; "Edited 13-Dec-2021 21:18 by rmk")
(* mjs "30-Dec-83 15:11")
(* makes sure that the atom X is at least MIN.LENGTH characters long, by
 concatinating the first character of EXTENDER
 (or space, if not given) to the front)
(* ;; "makes sure that the atom X is at least MIN.LENGTH characters long, by concatenating the first character of EXTENDER (or space, if not given) to the front")
(PROG ((C (CHCON X)))
(SETQ EXTENDER (if EXTENDER
then (CHCON1 EXTENDER)
else (CHARCODE SPACE)))
(while (ILESSP (LENGTH C)
MIN.LENGTH) do (SETQ C (CONS EXTENDER C)))
(RETURN (PACKC C])
(IF (ILESSP (NCHARS X)
MIN.LENGTH)
THEN (PACK* (ALLOCSTRING (IDIFFERENCE MIN.LENGTH (NCHARS X))
(CL:IF EXTENDER
(NTHCHAR EXTENDER 1)
" "))
X)
ELSE X])
(IMCOMPARE.MERGE.CONNECTED.CHUNKS
[LAMBDA (NEW.CHUNK.LIST BACKWARDS.FLG) (* mjs " 6-Jan-84 10:35")
@ -551,45 +473,44 @@ Copyright (c) 1984, 1985, 1993, 1998 by Xerox Corporation. All rights reserved.
(RPLACD CHUNK.LST (CDDR CHUNK.LST])
(IMCOMPARE.MIDDLEBUTTONFN
[LAMBDA (GNODE WINDOW) (* mjs " 6-Jan-84 11:37")
[LAMBDA (GNODE WINDOW)
(* This function is called if the MIDDLE mouse button is pressed over a graph
 node. The selected node is IMCOMPARE-ed with the last node selected <which is
 boxed>. The type of hashing used <PARA, LINE, or WORD> is selected from a
 pop-up menu. If none of the hashing types is selected, the current node is
 boxed. The pop-up menu is always located a little above the current cursor
 position, so a quick double-MIDDLE-click is an easy way to change the current
 boxed node.)
(* ;; "Edited 16-Dec-2021 10:55 by rmk: Remove previous HASH.TYPE from the middle mouse menu")
(* ; "Edited 16-Dec-2021 10:51 by rmk")
(* mjs " 6-Jan-84 11:37")
(* ;; "This function is called if the MIDDLE mouse button is pressed over a graph node. The selected node is IMCOMPARE-ed with the last node selected <which is boxed>. The type of hashing used <PARA, LINE, or WORD> is selected from a pop-up menu. If none of the hashing types is selected, the current node is boxed. The pop-up menu is always located a little above the current cursor position, so a quick double-MIDDLE-click is an easy way to change the current boxed node.")
(if GNODE
then (PROG (INNER.HASH.TYPE)
(CLRPROMPT)
(printout PROMPTWINDOW "Please select the type of hashing you wish." T)
[SETQ INNER.HASH.TYPE
(MENU (if (type? MENU IMCOMPARE.HASH.TYPE.MENU)
then IMCOMPARE.HASH.TYPE.MENU
else (SETQ IMCOMPARE.HASH.TYPE.MENU
(create MENU
ITEMS _ '(PARA LINE WORD)
MENUOFFSET _
(create POSITION
XCOORD _ 20
YCOORD _ -20]
(if (NULL INNER.HASH.TYPE)
then (* if no hash type is selected, just
 box the current node and return)
(IMCOMPARE.BOXNODE GNODE WINDOW)
(RETURN))
(if (NULL IMCOMPARE.LAST.NODE)
then (CLRPROMPT)
(PRIN1 "You must select another graph node first." PROMPTWINDOW)
(RETURN))
(printout PROMPTWINDOW "Comparing chunks by " INNER.HASH.TYPE T)
(IMCOMPARE.CHUNKS (fetch (GRAPHNODE NODEID) of IMCOMPARE.LAST.NODE
)
(fetch (GRAPHNODE NODEID) of GNODE)
INNER.HASH.TYPE
(WINDOWPROP WINDOW 'REGION])
(CLRPROMPT)
(printout PROMPTWINDOW "Please select the type of hashing you wish." T)
[SETQ INNER.HASH.TYPE (MENU (create MENU
ITEMS _ (REMOVE (GRAPHERPROP
(WINDOWPROP WINDOW
'GRAPH)
'HASH.TYPE)
'(PARA LINE WORD))
MENUOFFSET _
(create POSITION
XCOORD _ 20
YCOORD _ -20]
(if (NULL INNER.HASH.TYPE)
then (* ;
 "if no hash type is selected, just box the current node and return")
(IMCOMPARE.BOXNODE GNODE WINDOW)
(RETURN))
(if (NULL IMCOMPARE.LAST.NODE)
then (CLRPROMPT)
(PRIN1 "You must select another graph node first." PROMPTWINDOW)
(RETURN))
(printout PROMPTWINDOW "Comparing chunks by " INNER.HASH.TYPE T)
(IMCOMPARE.CHUNKS (fetch (GRAPHNODE NODEID) of IMCOMPARE.LAST.NODE)
(fetch (GRAPHNODE NODEID) of GNODE)
INNER.HASH.TYPE
(WINDOWPROP WINDOW 'REGION)
(GRAPHERPROP (WINDOWPROP WINDOW 'GRAPH)
'FILELABELS])
(IMCOMPARE.SHOW.DIST
[LAMBDA (LST MAX) (* mjs "30-Dec-83 15:13")
@ -634,15 +555,13 @@ Copyright (c) 1984, 1985, 1993, 1998 by Xerox Corporation. All rights reserved.
(MOVD 'COMPARETEXT 'IMCOMPARE)
(RPAQQ IMCOMPARE.LAST.NODE NIL)
(RPAQ? IMCOMPARE.LAST.NODE NIL)
(RPAQQ IMCOMPARE.LAST.GRAPH.WINDOW NIL)
(RPAQQ IMCOMPARE.HASH.TYPE.MENU NIL)
(RPAQ? IMCOMPARE.LAST.GRAPH.WINDOW NIL)
(DECLARE%: EVAL@COMPILE
(RECORD IMCOMPARE.CHUNK (HASHVALUE FILEPTR CHUNKLENGTH FILENAME . OTHERCHUNK)
FILEPTR _ 1 CHUNKLENGTH _ 0)
FILEPTR _ 1 CHUNKLENGTH _ 0)
(RECORD IMCOMPARE.SYMB (NEWCOUNT OLDCOUNT . OLDPTR))
)
@ -650,11 +569,11 @@ Copyright (c) 1984, 1985, 1993, 1998 by Xerox Corporation. All rights reserved.
(FILESLOAD GRAPHER)
(PUTPROPS COMPARETEXT COPYRIGHT ("Xerox Corporation" 1984 1985 1993 1998))
(DECLARE%: DONTCOPY
(FILEMAP (NIL (1365 39345 (COMPARETEXT 1375 . 3770) (IMCOMPARE.BOXNODE 3772 . 4288) (IMCOMPARE.CHUNKS
4290 . 8476) (IMCOMPARE.COLLECT.HASH.CHUNKS 8478 . 9707) (IMCOMPARE.DISPLAY.FILE.DIFFERENCE.GRAPH 9709
. 18575) (IMCOMPARE.FIND.TEDIT.TEXT.OBJECT 18577 . 19340) (IMCOMPARE.HASH 19342 . 26603) (
IMCOMPARE.LEFTBUTTONFN 26605 . 28341) (IMCOMPARE.LENGTHEN.ATOM 28343 . 28981) (
IMCOMPARE.MERGE.CONNECTED.CHUNKS 28983 . 32479) (IMCOMPARE.MERGE.UNCONNECTED.CHUNKS 32481 . 34436) (
IMCOMPARE.MIDDLEBUTTONFN 34438 . 37010) (IMCOMPARE.SHOW.DIST 37012 . 37458) (
IMCOMPARE.UPDATE.SYMBOL.TABLE 37460 . 39343)))))
(FILEMAP (NIL (1433 36973 (COMPARETEXT 1443 . 3693) (IMCOMPARE.BOXNODE 3695 . 4211) (IMCOMPARE.CHUNKS
4213 . 8626) (IMCOMPARE.COLLECT.HASH.CHUNKS 8628 . 10026) (IMCOMPARE.DISPLAY.FILE.DIFFERENCE.GRAPH
10028 . 19004) (IMCOMPARE.FIND.TEDIT.TEXT.OBJECT 19006 . 19780) (IMCOMPARE.HASH 19782 . 23904) (
IMCOMPARE.LEFTBUTTONFN 23906 . 25642) (IMCOMPARE.LENGTHEN.ATOM 25644 . 26346) (
IMCOMPARE.MERGE.CONNECTED.CHUNKS 26348 . 29844) (IMCOMPARE.MERGE.UNCONNECTED.CHUNKS 29846 . 31801) (
IMCOMPARE.MIDDLEBUTTONFN 31803 . 34638) (IMCOMPARE.SHOW.DIST 34640 . 35086) (
IMCOMPARE.UPDATE.SYMBOL.TABLE 35088 . 36971)))))
STOP

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