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76 lines
2.8 KiB
HTML
76 lines
2.8 KiB
HTML
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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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<title>Logtalk built-in method: phrase/2</title>
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<link rel="stylesheet" href="../../screen.css" type="text/css" media="screen"/>
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<div class="top-left">Logtalk reference manual</div>
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<div class="top-right">Built-in method: phrase/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#methods">built-in methods</a></div>
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<h2 class="code">phrase/2</h2>
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<h4>Description</h4>
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<pre>phrase(NonTerminal, Input)</pre>
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<p>
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True if the list <code>Input</code> can be parsed using the specified non-terminal <code>NonTerminal</code>. This method also accepts grammar rule bodies in the first argument (with the limitation that cuts are only supported in local calls).
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</p>
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<h4>Template and modes</h4>
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<pre>phrase(+callable, ?list)</pre>
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<h4>Errors</h4>
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<dl class="errors">
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<dt>NonTerminal is a variable:</dt>
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<dd><code>instantiation_error</code></dd>
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<dt>NonTerminal is neither a variable nor a callable term:</dt>
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<dd><code>type_error(callable, NonTerminal)</code></dd>
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<dt>Input is neither a partial list nor a list:</dt>
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<dd><code>type_error(list, Input)</code></dd>
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<dt>The grammar rule non-terminal NonTerminal is private:</dt>
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<dd><code>permission_error(access, private_non_terminal, NonTerminal)</code></dd>
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<dt>The grammar rule non-terminal NonTerminal is protected:</dt>
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<dd><code>permission_error(access, protected_non_terminal, NonTerminal)</code></dd>
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<dt>The grammar rule non-terminal NonTerminal is not declared:</dt>
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<dd><code>existence_error(non_terminal_declaration, NonTerminal)</code></dd>
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</dl>
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<h4>Examples</h4>
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<pre>| ?- sentence::phrase(sentence, [the, girl, likes, the, boy]).
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yes
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| ?- calculator::phrase(expr(Value), "1+2-3*4").
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Value = -9
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yes</pre>
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<div class="footer">
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<div class="navbottom"><a href="../index.html#methods">previous</a> | <a href="../../glossary.html">glossary</a> | <a href="phrase3.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: January 20, 2006</span>
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