check_next
goto check_next;
check_next:
if (check_next)
int check_next = 0;
if (check_next) {
check_next = 1;
if (!check_next)
check_next = 1;
check_next = 1;
if (first == '0' && check_next(ls, "Xx")) /* hexadecimal? */
if (check_next(ls, expo)) /* exponent part? */
check_next(ls, "+-"); /* optional exponent sign */
if (check_next(ls, ".")) {
if (check_next(ls, "."))