DELIMITER $$
CREATE OR REPLACE DEFINER=`root`@`localhost` FUNCTION `util`.`lang`()
	RETURNS char(2) CHARSET utf8mb3 COLLATE utf8mb3_general_ci
	DETERMINISTIC
	NO SQL
BEGIN
/**
 * Returns the current language code.
 *
 * @return The language code
 */
	RETURN IFNULL(@lang, SUBSTR(@@lc_messages, 1, 2));
END$$
DELIMITER ;