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Also added some descriptive files with info about the various files in the source directory.
153 lines
6.6 KiB
Plaintext
153 lines
6.6 KiB
Plaintext
********************************************************************************
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*
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* This describes the files maintained on the directory SHRDLU which
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* go into making up the Natural Language Understanding system designed
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* by Terry Winograd (currently at Stanford University)
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*
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* The files are ordered alphabeticly within the directory, but are
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* described here in related groups, and are listed by the printing
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* routine in similar groups
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*
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********************************************************************************
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-- Files which support the BLOCKS micro-world
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BLOCKP > Microplanner code for essentially all the functions of the
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BLOCKS world. - there are some supplementary materials at the
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end of the dictionary and data files
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BLOCKL > LISP code to support the microplanner code of BLOCKS. In particular
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this includes the routine for finding space on an object and
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for maintaining the history list.
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DATA > The initial contents (assertions) of the BLOCKS world's
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microplanner data base. Plus a few addittional function calls
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for initializing all other aspects of the micro-world.
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PLNR 180 This is a complete EXPR code version of MICROPLANNER. Calls to
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MICROPLANNER in SHRDLU are always done by calling the function
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THVAL2, contained in the semantics files, rather than the usual
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call to THVAL. PLNR 180 can be loaded independantly and run
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as a toplevel MICROPLANNER if desired. A compiled version of
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the files is availlable as PLNR FASL on SHRDLU, and TS PLNR on
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SYS should point to a core dump of a toplevel MICROPLANNER
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THTRAC 18 This is a file of tracing routines designed for tracing opperations
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during the evaluation of MICROPLANNER code
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-- Toplevel files for the language understanding system --
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SYSCOM > Contains the toplevel function SHRDLU as well as usefull extentions
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to LISP, special printing functions, break functions, garbage
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collection functions etc.
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MORPHO > Does all the morphological analysis required in the system via
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the function ETAOIN which is also the function called by SHRDLU
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to read in a user's sentence from the console.
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SHOW > This is the "Show - Tell" user package developed for use at a
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workshop at CMU in 1972. It provides a convenient way for a
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largely naieve user to interogate and change the data structures
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used in the system. Consult the MANUAL CMU for further details
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SETUP > A loose ends file for setting global variables, initializing
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trace routines, and setting up the initial environment. It is
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intended to be the final file read into the system before
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making a core dump.
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-- Files concerned with syntax
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PROGMR > This file contains all the functions that comprise the programmar
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language fro writing grammars. It expects to be entered from a
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toplevel call to PARSE as done in SHRDLU, and executes grammar
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programs via an intermediary function, APPLY-GRAMMAR, to permit
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differing opperations in the cases of compiled and intrepreted
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code.
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GINTER > "Grammar Interpreter" - Contains the calling sequence for use when
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running an uncompiled grammar. A precompiling pass is necessary
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on grammar functions to remove extra levels of function calls
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and to incorporate the calling program used in GINTER to eliminate
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GOTO's out of scope.
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GRAMAR > The entire syntactic recognition grammar for the system. See
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A.I. MEMO 282 "Grammar for the People" for comprehensive flowcharts
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of the functions in this file.
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DICTIO > Specifications and entrys for all of SHRDLU's vocabulary and
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related atomic symbols. This file contains all aspects of their
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definitions: syntax, semantics, macro-expanders, etc.
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-- Semantics files --
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SMSPEC > "Semantic Specialists" This contains all the functions which know
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how to interpret the syntactic forms that will be found by the
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grammar: noun groups, relative clauses, pronouns, etc.. All calls
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to these functions come from the syntactic routines through the
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function SMCALL which is in PROGMR.
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SMUTIL > Utility routines used by all the semantic functions for building
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nodes, evaluating definitions, marker checks, backreference maintanence,
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quantifier adjusting, building MIRCOPLANNER code.
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SMASS > Access functions that are used by the two previous files to grovel
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through their data structures while retaining their perspicuity.
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-- Answering --
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NEWANS > "new answer" Code for finding the answers to questions, absorbing
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new information, and following commands, then fromulating the
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appropriate English answers. This code is extensively interfaced
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with MICROPLANNER.
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-- Documentation --
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MANUAL CMU, MANNEW >, HELP DOC, MINIH DOC
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These files are unfortunately all the documentation availlable on the
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care and feeding of the system appart from Winograd's book (which is
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far and away the best reference to the details of its opperation).
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MANUAL CMU, as its name implys, was developed for the workshop at
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CMU and it the most through overall guide. HELP DOC and MINIH DOC
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are essentially excerpts from it which were intended as online references.
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MANNEW is grossly incomplete, but it is also the most up to date, and
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covers initial ussage of hte system.
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.INDEX > This is a through cross-reference for all the LISP code used in the system.
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It lists functions and variables alphabeticly with listings of their
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interactions with the rest of the code (functions called, variables
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bound ...). Also of interest is the file LISP >, which alphabeticly lists
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all MACLISP functions ever invoked in the code and the functions that they
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were invoked from.
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-- At the end of the directory, the files whose first names are "Z" are the origninal
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files of the system circa January 1971. They use the old list oriented data
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structures and are essentially uncommented. However they can often be of use
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when trying to see if alternate formulations of some algorithm were ever
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considered.
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