/* skip a sequence '=*]' and return its number of '='s or -1 if sequence is malformed  */
static int skip_sep(LexState *ls)
/* skip a sequence '=*]' and return its number of '='s or -1 if sequence is malformed  */
static int skip_sep(LexState *ls)
{
    save_and_next(ls);
    count++;
  }
  return (ls->current == s) ? count : (-count) - 1;
}