/usr/lib/swi-prolog/doc/Manual/chr.html

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<h1 id="sec:chr"><a id="sec:7"><span class="sec-nr">7</span> <span class="sec-title">CHR: 
Constraint Handling Rules</span></a></h1>

<a id="sec:chr"></a>

<p>This chapter is written by Tom Schrijvers, K.U. Leuven, and 
adjustments by Jan Wielemaker.

<p>The CHR system of SWI-Prolog is the <em>K.U.Leuven CHR system</em>. 
The runtime environment is written by Christian Holzbaur and Tom 
Schrijvers while the compiler is written by Tom Schrijvers. Both are 
integrated with SWI-Prolog and licensed under compatible conditions with 
permission from the authors.

<p>The main reference for the K.U.Leuven CHR system is:
<ul class="latex">
<li>T. Schrijvers, and B. Demoen, <em>The K.U.Leuven CHR System: 
Implementation and Application</em>, First Workshop on Constraint 
Handling Rules: Selected Contributions (Fr&uuml;hwirth, T. and Meister, 
M., eds.), pp. 1--5, 2004.
</ul>

<p>On the K.U.Leuven CHR website (<a class="url" href="http://dtai.cs.kuleuven.be/CHR/">http://dtai.cs.kuleuven.be/CHR/</a>) 
you can find more related papers, references and example programs.

<p>
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<h2>Section Index</h2>

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<hr>
<div class="toc">
<div class="toc-h2"><a class="sec" href="chrintro.html"><span class="sec-nr">7.1</span> <span class="sec-title">Introduction</span></a></div>
<div class="toc-h2"><a class="sec" href="SyntaxAndSemantics.html"><span class="sec-nr">7.2</span> <span class="sec-title">Syntax 
and Semantics</span></a></div>
<div class="toc-h3"><a class="sec" href="SyntaxAndSemantics.html#sec:7.2.1"><span class="sec-nr">7.2.1</span> <span class="sec-title">Syntax 
of CHR rules</span></a></div>
<div class="toc-h3"><a class="sec" href="SyntaxAndSemantics.html#sec:7.2.2"><span class="sec-nr">7.2.2</span> <span class="sec-title">Semantics</span></a></div>
<div class="toc-h2"><a class="sec" href="practical.html"><span class="sec-nr">7.3</span> <span class="sec-title">CHR 
in SWI-Prolog Programs</span></a></div>
<div class="toc-h3"><a class="sec" href="practical.html#sec:7.3.1"><span class="sec-nr">7.3.1</span> <span class="sec-title">Embedding 
in Prolog Programs</span></a></div>
<div class="toc-h3"><a class="sec" href="practical.html#sec:7.3.2"><span class="sec-nr">7.3.2</span> <span class="sec-title">Constraint 
declaration</span></a></div>
<div class="toc-h3"><a class="sec" href="practical.html#sec:7.3.3"><span class="sec-nr">7.3.3</span> <span class="sec-title">Compilation</span></a></div>
<div class="toc-h2"><a class="sec" href="debugging.html"><span class="sec-nr">7.4</span> <span class="sec-title">Debugging</span></a></div>
<div class="toc-h3"><a class="sec" href="debugging.html#sec:7.4.1"><span class="sec-nr">7.4.1</span> <span class="sec-title">Ports</span></a></div>
<div class="toc-h3"><a class="sec" href="debugging.html#sec:7.4.2"><span class="sec-nr">7.4.2</span> <span class="sec-title">Tracing</span></a></div>
<div class="toc-h3"><a class="sec" href="debugging.html#sec:7.4.3"><span class="sec-nr">7.4.3</span> <span class="sec-title">CHR 
Debugging Predicates</span></a></div>
<div class="toc-h2"><a class="sec" href="examples.html"><span class="sec-nr">7.5</span> <span class="sec-title">Examples</span></a></div>
<div class="toc-h2"><a class="sec" href="sicstus-chr.html"><span class="sec-nr">7.6</span> <span class="sec-title">Backwards 
Compatibility</span></a></div>
<div class="toc-h3"><a class="sec" href="sicstus-chr.html#sec:7.6.1"><span class="sec-nr">7.6.1</span> <span class="sec-title">The 
Old SICStus CHR implemenation</span></a></div>
<div class="toc-h3"><a class="sec" href="sicstus-chr.html#sec:7.6.2"><span class="sec-nr">7.6.2</span> <span class="sec-title">The 
Old ECLiPSe CHR implemenation</span></a></div>
<div class="toc-h2"><a class="sec" href="guidelines.html"><span class="sec-nr">7.7</span> <span class="sec-title">Programming 
Tips and Tricks</span></a></div>
<div class="toc-h2"><a class="sec" href="errors.html"><span class="sec-nr">7.8</span> <span class="sec-title">Compiler 
Errors and Warnings</span></a></div>
<div class="toc-h3"><a class="sec" href="errors.html#sec:7.8.1"><span class="sec-nr">7.8.1</span> <span class="sec-title">CHR 
Compiler Errors</span></a></div>
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swi-prolog-nox 6.6.4-2ubuntu1 / usr / lib / swi-prolog / doc / Manual / chr.html
