2004-11-29 20:36:31 +00:00
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=================================================================
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Logtalk - Object oriented extension to Prolog
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2005-02-21 02:40:52 +00:00
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Release 2.23.0
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2004-11-29 20:36:31 +00:00
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2005-01-13 12:22:42 +00:00
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Copyright (c) 1998-2005 Paulo Moura. All Rights Reserved.
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2004-11-29 20:36:31 +00:00
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=================================================================
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2004-12-25 03:06:18 +00:00
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This folder contains a Prolog file, "libpaths.pl", which, when loaded,
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defines the library paths for the Logtalk standard library and for all
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the supplied examples. You may customize this file by adding the paths
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to your own "libraries" in order to easily load your own source code.
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2004-11-29 20:36:31 +00:00
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2004-12-25 03:06:18 +00:00
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In order to easily compile and load library and example source files using
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the notation <library>(<entity>), you will need to load the "libpaths.pl"
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into your Prolog compiler after loading the Logtalk compiler/runtime.
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You might need to edit the "libpaths.pl" file in order to adapt it to reflect
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your Logtalk installation and your Prolog compiler and operating-system
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requirements (for example, some Prolog compilers do not accept or expand
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2005-02-10 00:02:06 +00:00
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environment variables occurring on paths).
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2004-12-25 03:06:18 +00:00
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As defined, the provided "libpaths.pl" file is already compatible with some
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of the most popular Prolog compilers, running on both Windows, Unix, and
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Unix-like operating-systems.
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The Prolog integration scripts found on the "misc" directory generate scripts
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and shortcuts that automatically load the copy of the "libpaths.pl" file from
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the Logtalk end-user directory created by the "misc/cplgtdirs.*" scripts. See
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the "INSTALL" and the "misc/NOTES" files for more details. Note that a few
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Prolog compilers do not support the <library>(<entity>) notation. See the
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"configs/NOTES" file for details.
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The somehow contrived code found on the "libpaths.pl" file is needed to ensure
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compatibility with both the ISO Prolog standard and with most Prolog compilers.
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The code could be greatly simplified by using a multifile predicate directive
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for the library path dynamic predicate. Unfortunately, not all Prolog compilers
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support multifile predicates.
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2005-02-10 00:02:06 +00:00
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Some Prolog compilers which are expected to be compatible with the provided
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"libpaths.pl" file as is, across operating systems:
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* CIAO
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* ECLiPSe
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* GNU-Prolog
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* K-Prolog
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* Qu-Prolog
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* SICStus Prolog
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* SWI-Prolog
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* YAP
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Some Prolog compilers which imply editing the provided "libpaths.pl" file:
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* JIProlog (does not support expansion of environment variables on paths)
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* XSB (does not support expansion of environment variables on paths)
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Feedback on other Prolog compilers are most appreciated.
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