led expression or NULL in case of error</td></tr></tbody></table></div><h3><a name="xmlRegexpExec" id="xmlRegexpExec"></a>Function: xmlRegexpExec</h3><pre class="programlisting">int	xmlRegexpExec			(<a href="libxml-xmlregexp.html#xmlRegexpPtr">xmlRegexpPtr</a> comp, <br />					 const <a href="libxml-xmlstring.html#xmlChar">xmlChar</a> * content)<br />
</pre><p>Check if the regular expression generates the value</p>
<div class="variablelist"><table border="0"><col align="left" /><tbody><tr><td><span class="t