$this->_throw_exception(sprintf("XML error: %s at line %d",
xml_error_string(xml_get_error_code($xml_parser)),
xml_get_current_line_number($xml_parser)).'<br /><br />Exception in function parse_RDF().');
$this->_throw_exception(sprintf("XML error: %s at line %d",
xml_error_string(xml_get_error_code($xml_parser)),
xml_get_current_line_number($xml_parser)).'<br /><br />Exception in function parse_RDF().');