/* * call-seq: * external_subset * * Get the external subset */ static VALUE external_subset(VALUE self) { xmlNodePtr node; xmlDocPtr doc; Data_Get_Struct(self, xmlNode, node); if(!node->doc) return Qnil; doc = node->doc; xmlDtdPtr dtd = doc->extSubset; if(!dtd) return Qnil; return Nokogiri_wrap_xml_node(Qnil, (xmlNodePtr)dtd); }