PLOGHELP LIBRARIES                         Jonathan Laventhol March 1984
                                   revised by Kathryn Seifert  July 1986

Overview of Prolog library programs

Keywords: overview, library, lib, autoloadable


 CONTENTS - (Use <ENTER> g to access sections)

 -- INTRODUCTION
 -- HELP FILES COVERING STANDARD LIBRARY FILES
 -- HELP FILES COVERING AUTOLOADABLE LIBRARY PROGRAMS
 -- RELATED DOCUMENTATION


-- INTRODUCTION -------------------------------------------------------

There are several extensions to the Prolog system in the form of on-line
library programs.  There are two directories for Prolog library
programs: the autoloadable directory, and the standard directory.  The
difference between these two directories is that Prolog can be set up
to search automatically for predicates in the autoloadable directory.
PLOGHELP * UNKNOWN gives more information about this facility.

The predicate 'library/1' will search both directories.  Thus if you do
not use the autoloading feature, you can consider both directories to
be the same.

Users can type to VED

    <ENTER> showlib <filename>

or to Prolog

    ?- showlib <filename>.

to examine the contents of library files.  See PLOGHELP * SHOWLIB for
more information.


-- HELP FILES COVERING STANDARD LIBRARY FILES -------------------------

PLOGHELP * CD
 Enables a macro for changing directories

PLOGHELP * CHATTY
 To make clauses give running commentary on their executions

PLOGHELP * CURRENT_DISK
 For finding out about disk files

PLOGHELP * DEC10
 For compatibility with DEC-10 Prolog

PLOGHELP * DEFAULT_OPS
 Restores default operator precedences

PLOGHELP * DOLLAR
 For using variables to hold predicate names

PLOGHELP * GENSYM
 A predicate for generating atoms

PLOGHELP * PROLOG_LANGUAGE
 Enables macros for switching between languages easily

PLOGHELP * LISPINPLOG
 An interface to POPLOG Common Lisp

PLOGHELP * LERNGRAM
 A demonstration program for learning concepts from sentences

PLOGHELP * LOG
 Provides a log file of terminal interaction

PLOGHELP * MACRO
 Enables you to make new macros in Prolog

PLOGHELP * PARSEDEMO
 Demonstration program for parsing sentences and showing the parse tree

PLOGHELP * PDP11
 Resets operator precedences to those of PDP-11 Prolog

PLOGHELP * POPSTRING
 For putting POP-11 strings inside Prolog programs

PLOGHELP * RECORD
 Library file providing indexed database facilities of DEC-10 Prolog

PLOGHELP * RESOLVE
 Teaching packages for resolution theorem proving (Also see
 TEACH * RESOLUTION)

PLOGHELP * SIMPLEPOP
 Some predicates for doing things in POP-11 simply

PLOGHELP * STRINGS
 For writing Prolog strings

PLOGHELP * TRACER
 (buggy) library program for tracing the action of simple predicates

PLOGHELP * USEFUL
 A few useful predicates -- 'member', 'append', 'once', 'load', 'uses'.


-- HELP FILES COVERING AUTOLOADABLE LIBRARY PROGRAMS ------------------

PLOGHELP * ARE
 For calling POP-11 procedures which return an arbitrary number of
 results

PLOGHELP * CLAUSIFY
 For putting predicate calculus formulae into clausal form

PLOGHELP * DATE
 For returning a list representing the date and time

PLOGHELP * SHOWTERM
 For drawing out a tree representing a term

PLOGHELP * PLOGSHOWTREE
 For drawing out a tree representing a list

PLOGHELP * TIME
 For timing Prolog goals

PLOGHELP * UNDEFS
 For finding and abolishing predicate definitions produced by the
 "oldfail" option of LIBRARY * UNKNOWN

PLOGHELP * UNKNOWN
 For altering the action taken when encountering undefined predicates


-- RELATED DOCUMENTATION ----------------------------------------------

PLOGHELP * LIBRARY
 How to access library files and how to add your own libraries

PLOGHELP * SHOWLIB
 How to examine the contents of POP-11 and Prolog library files

HELP * PLOGSHOWLIB
 How to examine the contents of Prolog LIB files from POP-11

HELP * PROLOGLIBLIST
 POP-11 variable holding list of directories of Prolog library files

HELP * LIBRARIES
 Overview of POP-11 library facilities

HELP * AUTOLOAD
 Information about autoloading libraries in POP-11

HELP * POPAUTOLIST
 Variable which holds a list of directories accessed by the POP-11
 autoload mechanism

HELP * LIB
 Loading libraries in POP-11


--- C.all/plog/help/libraries ------------------------------------------
--- Copyright University of Sussex 1992. All rights reserved. ----------