xml_set_default_handler Set up default handler &reftitle.description; truexml_set_default_handler XMLParserparser callablehandler Sets the default handler function for the XML parser parser. &reftitle.parameters; &xml.parser.param; handler &xml.handler.description; The signature of the handler must be: voidhandler XMLParserparser stringdata &xml.handler.parser.param; data data contains the character data. This may be the XML declaration, document type declaration, entities or other data for which no other handler exists. &reftitle.returnvalues; &return.true.always; &reftitle.changelog; &Version; &Description; &xml.changelog.parser-param;