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<p>
Next: <a href="Parser.html" accesskey="n" rel="next">Parser</a>, Up: <a href="Grammar-and-Parser.html" accesskey="u" rel="up">Grammar and Parser</a> [<a href="index.html#SEC_Contents" title="Table of contents" rel="contents">Contents</a>][<a href="Concept-Index.html" title="Index" rel="index">Index</a>]</p>
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<span id="Keywords-1"></span><h3 class="section">F.1 Keywords</h3>
<span id="index-keywords"></span>
<p>The following identifiers are keywords, and may not be used as variable
or function names:
</p>
<table>
<tr><td width="33%"><code>__FILE__</code></td><td width="33%"><code>__LINE__</code></td><td width="33%"><code>break</code></td></tr>
<tr><td width="33%"><code>case</code></td><td width="33%"><code>catch</code></td><td width="33%"><code>classdef</code></td></tr>
<tr><td width="33%"><code>continue</code></td><td width="33%"><code>do</code></td><td width="33%"><code>else</code></td></tr>
<tr><td width="33%"><code>elseif</code></td><td width="33%"><code>end</code></td><td width="33%"><code>end_try_catch</code></td></tr>
<tr><td width="33%"><code>end_unwind_protect</code></td><td width="33%"><code>endclassdef</code></td><td width="33%"><code>endenumeration</code></td></tr>
<tr><td width="33%"><code>endevents</code></td><td width="33%"><code>endfor</code></td><td width="33%"><code>endfunction</code></td></tr>
<tr><td width="33%"><code>endif</code></td><td width="33%"><code>endmethods</code></td><td width="33%"><code>endparfor</code></td></tr>
<tr><td width="33%"><code>endproperties</code></td><td width="33%"><code>endswitch</code></td><td width="33%"><code>endwhile</code></td></tr>
<tr><td width="33%"><code>enumeration</code></td><td width="33%"><code>events</code></td><td width="33%"><code>for</code></td></tr>
<tr><td width="33%"><code>function</code></td><td width="33%"><code>global</code></td><td width="33%"><code>if</code></td></tr>
<tr><td width="33%"><code>methods</code></td><td width="33%"><code>otherwise</code></td><td width="33%"><code>parfor</code></td></tr>
<tr><td width="33%"><code>persistent</code></td><td width="33%"><code>properties</code></td><td width="33%"><code>return</code></td></tr>
<tr><td width="33%"><code>switch</code></td><td width="33%"><code>try</code></td><td width="33%"><code>until</code></td></tr>
<tr><td width="33%"><code>unwind_protect</code></td><td width="33%"><code>unwind_protect_cleanup</code></td><td width="33%"><code>while</code></td></tr>
</table>
<p>The function <code>iskeyword</code> can be used to quickly check whether an
identifier is reserved by Octave.
</p>
<span id="XREFiskeyword"></span><dl>
<dt id="index-iskeyword">: <em></em> <strong>iskeyword</strong> <em>()</em></dt>
<dt id="index-iskeyword-1">: <em></em> <strong>iskeyword</strong> <em>(<var>name</var>)</em></dt>
<dd><p>Return true if <var>name</var> is an Octave keyword.
</p>
<p>If <var>name</var> is omitted, return a list of keywords.
</p>
<p><strong>See also:</strong> <a href="Variables.html#XREFisvarname">isvarname</a>, <a href="Status-of-Variables.html#XREFexist">exist</a>.
</p></dd></dl>
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