return parent;
set_xml_attr(xmlNodePtr parent,	     const char *node_name,	     const char *attr_name,	     const char *attr_value,	     gboolean create){	if(node_name == NULL) {		// set it on the current node		return set_xml_attr_nested(parent, NULL, 0,					   attr_name, attr_value, create);	}	return set_xml_attr_nested(parent, &node_name, 1,				   attr_name, attr_value, create);}