td></tr><tr><td><span class="term"><i><tt>Returns</tt></i>:</span></td><td>the compiled expression or NULL in case of error</td></tr></tbody></table></div></div>
        <hr/>
        <div class="refsect2" lang="en"><h3><a name="xmlRegexpExec"/>xmlRegexpExec ()</h3><pre class="programlisting">int	xmlRegexpExec			(<a href="libxml2-xmlregexp.html#xmlRegexpPtr">xmlRegexpPtr</a> comp, <br/>					 const <a href="libxml2-xmlstring.html#xmlChar">xmlChar</a> * content)<br/>
</pre><p>Check if the regular expressio