b77427df89
git-svn-id: https://yap.svn.sf.net/svnroot/yap/trunk@211 b08c6af1-5177-4d33-ba66-4b1c6b8b522a
77 lines
1.9 KiB
HTML
77 lines
1.9 KiB
HTML
<!doctype html public "-//W3C//DTD HTML 4.01//EN"
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"http://www.w3.org/TR/html4/strict.dtd">
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<html>
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<head>
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<title>create_category/4</title>
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<link rel=stylesheet href="../../styles.css" type="text/css">
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</head>
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<body>
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<hr />
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<h2><code><a class="back" title="Return to index" href="../index.html#create_category4">create_category/4</a></code></h2>
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<hr />
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<h4>Description</h4>
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<blockquote>
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<pre>
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create_category(Identifier, Relations, Directives, Clauses)
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</pre>
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<p>
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Creates a new, dynamic, category.
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</p>
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</blockquote>
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<h4>Template and modes</h4>
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<blockquote>
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<pre>
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create_category(+category_identifier, +list, +list, +list)
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</pre>
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</blockquote>
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<h4>Errors</h4>
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<blockquote>
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<dl>
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<dt>Identifier is a variable:</dt>
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<dd><code>instantiation_error</code></dd>
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<dt>Identifier is not a valid category identifier:</dt>
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<dd><code>type_error(category_identifier, Identifier)</code></dd>
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<dt>Identifier is already in use:</dt>
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<dd><code>permission_error(replace, category, Identifier)</code></dd>
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<dd><code>permission_error(replace, object, Identifier)</code></dd>
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<dd><code>permission_error(replace, protocol, Identifier)</code></dd>
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<dt>Relations is not a list:</dt>
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<dd><code>type_error(list, Relations)</code></dd>
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<dt>Directives is not a list:</dt>
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<dd><code>type_error(list, Directives)</code></dd>
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<dt>Clauses is not a list:</dt>
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<dd><code>type_error(list, Clauses)</code></dd>
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</dl>
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</blockquote>
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<h4>Examples</h4>
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<blockquote>
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<pre>
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| ?- create_category(foo, [implements(bar)], [], [bar(1), bar(2)]).
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</pre>
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</blockquote>
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<hr />
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<p class="center">
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<strong><a href="protocol_property2.html">Previous</a> | <a href="create_object4.html">Next</a> | <a href="../index.html">Table of Contents</a> | <a href="../../bibliography.html">Bibliography</a> | <a href="../../glossary.html">Glossary</a></strong>
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</p>
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<p class="center">
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Last updated on: October 21, 2001
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</p>
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<hr />
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</body>
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</html>
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