Projects / Logtalk


Logtalk is an object-oriented logic programming language that can use most Prolog implementations as a back-end compiler. As a multi-paradigm language, it includes support for both prototypes and classes, protocols (interfaces), component-based programming through category-based composition, event-driven programming, and high-level multi-threading programming.

Operating Systems

Recent releases

  •  28 May 2012 01:44

    Release Notes: This release updates the semantics of "before" event handlers, provides more consistent handling of compiler options, corrects a bug in the compilation of the meta_non_terminal/1 directive, improves the unit test framework, fixes several bugs in the Windows installer, includes portability updates for ECLiPSe, XSB, and YAP (plus updates to the library), adds examples, and provides text editor support.

    •  07 Mar 2012 01:53

      Release Notes: This release changes the semantics of complementing categories, allowing its use to patch existing object code, fixes two bugs in the processing of meta-calls, allows open lists of terminals in the body of DCG rules, adds two new examples, and improves support for the Vim text editor and for Exuberant ctags.

      •  21 Dec 2011 00:26

        Release Notes: This release extends the uses/2 directive semantics, adds a scope/1 predicate property, features compiler and runtime improvements which simplify building applications when Logtalk libraries are pre-compiled and pre-loaded, adds new list library predicates, and includes portability updates for Lean Prolog and SWI-Prolog.

        •  04 Oct 2011 03:31

          Release Notes: This is a minor release with some bugfixes and minor compiler and runtime improvements.

          •  12 Sep 2011 00:08

            Release Notes: This release includes a parser for PDDL 3.0 files, improved coinduction support, new compiler flags allowing passing options to the back-end Prolog compiler, improved meta-predicate support, updated examples, minor dynamic binding performance improvements, updated support for several text editors, fixes for all know bugs, and portability updates for ECLiPSe, Lean Prolog, Qu-Prolog, SICStus Prolog, XSB, and YAP.


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