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<h1>luaposix 36.3</h1>
<ul>
<li><a href="../index.html">Index</a></li>
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<h2>Contents</h2>
<ul>
<li><a href="#Functions">Functions</a></li>
</ul>
<h2>Modules</h2>
<ul class="nowrap">
<li><a href="../modules/posix.html">posix</a></li>
<li><strong>posix.ctype</strong></li>
<li><a href="../modules/posix.dirent.html">posix.dirent</a></li>
<li><a href="../modules/posix.errno.html">posix.errno</a></li>
<li><a href="../modules/posix.fcntl.html">posix.fcntl</a></li>
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<li><a href="../modules/posix.poll.html">posix.poll</a></li>
<li><a href="../modules/posix.pwd.html">posix.pwd</a></li>
<li><a href="../modules/posix.sched.html">posix.sched</a></li>
<li><a href="../modules/posix.signal.html">posix.signal</a></li>
<li><a href="../modules/posix.stdio.html">posix.stdio</a></li>
<li><a href="../modules/posix.stdlib.html">posix.stdlib</a></li>
<li><a href="../modules/posix.sys.msg.html">posix.sys.msg</a></li>
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<li><a href="../examples/fork2.lua.html">fork2.lua</a></li>
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<h1>Module <code>posix.ctype</code></h1>
<p>Character tests.</p>
<p>
</p>
<h2><a href="#Functions">Functions</a></h2>
<table class="function_list">
<tr>
<td class="name" nowrap><a href="#isgraph">isgraph (character)</a></td>
<td class="summary">Check for any printable character except space.</td>
</tr>
<tr>
<td class="name" nowrap><a href="#isprint">isprint (character)</a></td>
<td class="summary">Check for any printable character including space.</td>
</tr>
</table>
<br/>
<br/>
<h2 class="section-header "><a name="Functions"></a>Functions</h2>
<dl class="function">
<dt>
<a name = "isgraph"></a>
<strong>isgraph (character)</strong>
</dt>
<dd>
Check for any printable character except space.
<h3>Parameters:</h3>
<ul>
<li><span class="parameter">character</span>
<span class="types"><a class="type" href="https://www.lua.org/manual/5.4/manual.html#6.4">string</a></span>
to act on
</li>
</ul>
<h3>Returns:</h3>
<ol>
<span class="types"><span class="type">int</span></span>
non-zero if character is not in the class
</ol>
<h3>See also:</h3>
<ul>
<a href="http://pubs.opengroup.org/onlinepubs/9699919799/functions/isgraph.html">isgraph(3)</a>
</ul>
</dd>
<dt>
<a name = "isprint"></a>
<strong>isprint (character)</strong>
</dt>
<dd>
Check for any printable character including space.
<h3>Parameters:</h3>
<ul>
<li><span class="parameter">character</span>
<span class="types"><a class="type" href="https://www.lua.org/manual/5.4/manual.html#6.4">string</a></span>
to act on
</li>
</ul>
<h3>Returns:</h3>
<ol>
<span class="types"><span class="type">int</span></span>
non-zero if character is not in the class
</ol>
<h3>See also:</h3>
<ul>
<a href="http://pubs.opengroup.org/onlinepubs/9699919799/functions/isprint.html">isprint(3)</a>
</ul>
</dd>
</dl>
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