r">xmlDocPtr</a> doc)<br />
</pre><p>Create an XML RelaxNGs parser context for that document. Note: since the process of compiling a RelaxNG schemas modifies the document, the @doc parameter is duplicated internally.</p>
<div class="variablelist"><table border="0"><col align="left" /><tbody><tr><td><span class="term"><i><tt>doc</tt></i>:</span></td><td>a preparsed document tree</td></tr><tr><td><span class="term"><i><tt>Returns</tt></i>:</span></td><td>the parser context or NULL in case of error</td></tr></