Original author(s) | Development status Actual | |
Initial release 1987; 30 years ago (1987) Stable release 7.4.1 / 2 March 2017; 25 days ago (2017-03-02) Preview release 7.5.1 / 10 February 2017; 45 days ago (2017-02-10) | ||
SWI-Prolog is a free implementation of the programming language Prolog, commonly used for teaching and semantic web applications. It has a rich set of features, libraries for constraint logic programming, multithreading, unit testing, GUI, interfacing to Java, ODBC and others, literate programming, a web server, SGML, RDF, RDFS, developer tools (including an IDE with a GUI debugger and GUI profiler), and extensive documentation.
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SWI-Prolog runs on Unix, Windows, Macintosh and Linux platforms.
SWI-Prolog has been under continuous development since 1987. Its main author is Jan Wielemaker.
The name SWI is derived from Sociaal-Wetenschappelijke Informatica ("Social Science Informatics"), the former name of the group at the University of Amsterdam, where Wielemaker is employed. The name of this group has changed to HCS (Human-Computer Studies).
Web Framework
SWI-Prolog installs with a web framework based on definite clause grammars.
Distributed Computing
Through the Pengines system SWI-Prolog queries may be distributed over several servers and web pages.
XPCE
XPCE is a platform independent object oriented GUI toolkit for SWI-Prolog, Lisp and other interactive and dynamically typed languages. Although XPCE was designed to be language-independent, it has gained popularity most with Prolog. The development XPCE graphic toolkit started in 1987, together with SWI-Prolog.
It supports buttons, menus, sliders, tabs and other basic GUI widgets. XPCE is available for all platforms supported by SWI-Prolog.
PceEmacs
PceEmacs is a SWI-Prolog builtin editor. PceEmacs is an Emacs clone implemented in Prolog (and XPCE). It supports proper indentation, syntax highlighting, full syntax checking by calling the SWI-Prolog parser, warning for singleton variables and finding predicate definitions based on the source-information from the Prolog database.
JPL
JPL is a bidirectional interface between Java and Prolog. It requires both SWI-Prolog and Java SDK. It is installed as a part of SWI-Prolog.