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<head>
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<meta http-equiv="content-type" content="application/xml+xhtml; charset=utf-8" />
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2003-12-30 13:33:51 +00:00
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<title>Logtalk predicate directive: info/2</title>
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<link rel="stylesheet" href="../../screen.css" type="text/css" media="screen"/>
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<body>
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2005-12-24 18:00:21 +00:00
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<div class="top-left">Logtalk reference manual</div>
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<div class="top-right">Predicate directive: info/2</div>
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<div class="bottom-left"><span class="page"/></div>
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<div class="bottom-right"><span class="page"/></div>
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<div class="navtop"><a href="../../index.html">contents</a> > <a href="../index.html">reference manual</a> > <a href="../index.html#directives">directives</a></div>
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<h2 class="code">info/2</h2>
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<h4>Description</h4>
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2004-10-17 23:37:16 +01:00
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<pre>info(Functor/Arity, List)
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info(Functor//Arity, List)</pre>
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<p>
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Documentation directive for predicates and grammar rule non-terminals.
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</p>
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<h4>Template and modes</h4>
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2004-10-17 23:37:16 +01:00
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<pre>info(+predicate_indicator, +info_list)
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info(+non_terminal_indicator, +info_list)</pre>
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<h4>Examples</h4>
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<pre>:- info(empty/1, [
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comment is 'True if the argument is an empty list.',
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argnames is ['List']]).
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:- info(sentence//0, [
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comment is 'Rewrites a sentence into a noun phrase and a verb phrase.']).</pre>
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<div class="footer">
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2005-12-24 18:00:21 +00:00
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<div class="navbottom"><a href="dynamic1.html">previous</a> | <a href="../../glossary.html">glossary</a> | <a href="metapredicate1.html">next</a></div>
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<div class="copyright">Copyright © <a href="mailto:pmoura@logtalk.org">Paulo Moura</a> — <a href="http://www.logtalk.org">Logtalk.org</a></div>
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<div class="footnote">
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<span class="validators"><a href="http://validator.w3.org/check/referer">XHTML</a> + <a href="http://jigsaw.w3.org/css-validator/check/referer">CSS</a></span>
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<span class="date">Last updated on: November 16, 2005</span>
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</div>
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</div>
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