<?xml version="1.0" encoding="utf-8"?> <!DOCTYPE html PUBLIC "-//W3C//DTD XHTML 1.1//EN" "http://www.w3.org/TR/xhtml11/DTD/xhtml11.dtd"> <html xmlns="http://www.w3.org/1999/xhtml" xml:lang="en"> <head> <meta http-equiv="content-type" content="application/xml+xhtml; charset=utf-8" /> <title>Logtalk built-in method: phrase/2</title> <link rel="stylesheet" href="../../screen.css" type="text/css" media="screen"/> <link rel="stylesheet" href="../../print.css" type="text/css" media="print"/> </head> <body> <div class="top-left">Logtalk reference manual</div> <div class="top-right">Built-in method: phrase/2</div> <div class="bottom-left"><span class="page"/></div> <div class="bottom-right"><span class="page"/></div> <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> <h2 class="codenp">phrase/2<span id="methods_phrase2"/></h2> <h4>Description</h4> <pre>phrase(NonTerminal, Input)</pre> <p> 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). </p> <h4>Template and modes</h4> <pre>phrase(+callable, ?list)</pre> <h4>Errors</h4> <dl> <dt>NonTerminal is a variable:</dt> <dd><code>instantiation_error</code></dd> <dt>NonTerminal is neither a variable nor a callable term:</dt> <dd><code>type_error(callable, NonTerminal)</code></dd> <dt>Input is neither a partial list nor a list:</dt> <dd><code>type_error(list, Input)</code></dd> <dt>The grammar rule non-terminal NonTerminal is private:</dt> <dd><code>permission_error(access, private_non_terminal, NonTerminal)</code></dd> <dt>The grammar rule non-terminal NonTerminal is protected:</dt> <dd><code>permission_error(access, protected_non_terminal, NonTerminal)</code></dd> <dt>The grammar rule non-terminal NonTerminal is not declared:</dt> <dd><code>existence_error(non_terminal_declaration, NonTerminal)</code></dd> </dl> <h4>Examples</h4> <pre>| ?- sentence::phrase(sentence, [the, girl, likes, the, boy]). yes | ?- calculator::phrase(expr(Value), "1+2-3*4"). Value = -9 yes</pre> <div class="footer"> <div class="copyright"> <span>Copyright © <a href="mailto:pmoura@logtalk.org">Paulo Moura</a> — <a href="http://logtalk.org">Logtalk.org</a></span><br/> <span>Last updated on: October 26, 2006</span> </div> <div class="navbottom"> <span><a href="../index.html#methods">previous</a> | <a href="../../glossary.html">glossary</a> | <a href="phrase3.html">next</a></span><br/> <span><a href="http://validator.w3.org/check/referer">XHTML</a> + <a href="http://jigsaw.w3.org/css-validator/check/referer">CSS</a></span> </div> </div> </body> </html>