static T3<S> ai_tripelize_exclamCommand(S s, L<S> tok) {
  if (!eqGet(tok, 1, "!")) null;
  if (!isIdentifier(get(tok, 3))) null;
  int i = tok_smartIndexOfFirstSpace(tok, 1);
  S arg = trimJoinSubList(tok, i+1);
  ret t3(trimJoinSubList(tok, 0, i), empty(arg) ? "." : ",", or2(arg, "."));
}