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Constraint Handling Rules (CHR) News

Constraint Handling Rules (CHR) News  
Marc Meister
From:Marc Meister
Subject:Constraint Handling Rules (CHR) News
Date:Mon, 17 Jan 2005 12:54:02 +0100
K.U.Leuven CHR stable releases
------------------------------

The K.U.Leuven CHR system is now available in two major
open-source Prolog systems: SWI-Prolog and XSB.

* SWI-Prolog 5.4

The Constraint Handling Rules package of SWI-Prolog comes with
the latest performance improvements, supports mode declarations
and is integrated into SWI-Prolog's debugging facilities.
In addition to the CHR package a number of other constraint facilities
are also available: co-routining (when/2, dif/2, freeze/2) and a small
finite domain solver.

Available from: http://www.swi-prolog.org/

* XSB 2.7 (Kinryo)

The Constraint Handling Rules package of XSB includes both a CHR
runtime system and a compiler to convert CHR files to Prolog files.
Support for combining CHR with tabled predicates is also
available.

Available from: http://xsb.sourceforge.net/

For more information on the K.U.Leuven CHR system:
http://www.cs.kuleuven.ac.be/~toms/Research/CHR/


For more information on CHR visit the updated webpages at

http://www.informatik.uni-ulm.de/pm/mitarbeiter/fruehwirth/chr.html
   

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