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<title>Logtalk built-in method: phrase/3</title>
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<div class="top-left">Logtalk reference manual</div>
<div class="top-right">Built-in method: phrase/3</div>
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<h2 class="code">phrase/3</h2>
<h4>Description</h4>
<pre>phrase(Ruleset, Input, Rest)</pre>
<p>
True if the list <code>Input</code> can be parsed using the specified non-terminal <code>Ruleset</code>. The list <code>Rest</code> is what remains of the list <code>Input</code> after parsing succeeded.
</p>
<h4>Template and modes</h4>
<pre>phrase(+callable, ?list, ?list)</pre>
<h4>Errors</h4>
<dl class="errors">
<dt>Ruleset is a variable:</dt>
<dd><code>instantiation_error</code></dd>
<dt>Ruleset is neither a variable nor a callable term:</dt>
<dd><code>type_error(callable, Ruleset)</code></dd>
<dt>Input is neither a variable nor a proper list:</dt>
<dd><code>type_error(list, Input)</code></dd>
<dt>Rest is neither a variable nor a proper list:</dt>
<dd><code>type_error(list, Rest)</code></dd>
<dt>The predicate Pred corresponding to Ruleset is private:</dt>
<dd><code>permission_error(access, private_predicate, Pred)</code></dd>
<dt>The predicate Pred corresponding to Ruleset is protected:</dt>
<dd><code>permission_error(access, protected_predicate, Pred)</code></dd>
<dt>The predicate Pred corresponding to Ruleset is not declared:</dt>
<dd><code>existence_error(predicate_declaration, Pred)</code></dd>
</dl>
<h4>Examples</h4>
<pre>| ?- sentence::phrase(noun_phrase, [the, girl, likes, the, boy], Rest).
Rest = [likes, the, boy]
yes</pre>
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<span class="date">Last updated on: November 16, 2005</span>
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