xml_set_notation_decl_handler set up notation declaration handler intxml_set_notation_decl_handler intparser stringhandler Sets the notation declaration handler function for the XML parser parser. handler is a string containing the name of a function that must exist when xml_parse is called for parser. A notation declaration is part of the document's DTD and has the following format: <!NOTATION name {systemId | publicId}> See section 4.7 of the XML 1.0 spec for the definition of notation declarations. The function named by handler must accept five parameters: handler intparser stringnotationName stringbase stringsystemId stringpublicId parser The first parameter, parser, is a reference to the XML parser calling the handler. notationName This is the notation's name, as per the notation format described above. base This is the base for resolving the system identifier (systemId) of the notation declaration. Currently this parameter will always be set to an empty string. systemId System identifier of the external notation declaration. publicId Public identifier of the external notation declaration. If a handler function is set to an empty string, or &false;, the handler in question is disabled. &true; is returned if the handler is set up, &false; if parser is not a parser. ¬e.func-callback;