how how to extract subdocuments with xmlReader</h3><p>Demonstrate the use of xmlTextReaderPreservePattern() to parse an XML file with the xmlReader while collecting only some subparts of the document. (Note that the XMLReader functions require libxml2 version later than 2.6.)</p><p>Includes:</p><ul><li><a href="../html/libxml-xmlreader.html">&lt;libxml/xmlreader.h&gt;</a></li></ul><p>Uses:</p><ul><li> line 32: Type <a href="../html/libxml-xmlreader.html#xmlTextReaderPtr">xmlTextReaderPtr</a> from xmlreader.