/* Check whether current char is in set 'set' (with two chars) and saves it  */
static int check_next2(LexState *ls, const char *set)
/* Check whether current char is in set 'set' (with two chars) and saves it  */
static int check_next2(LexState *ls, const char *set)
{
    save_and_next(ls);
    return 1;
  }
  else return 0;
}