public static boolean char_class_exclamation(PsiBuilder b, int l) {
    if (!recursion_guard_(b, l, "char_class_exclamation")) return false;
    if (!nextTokenIs(b, EXCLAMATION)) return false;
    boolean r;
    Marker m = enter_section_(b);
    r = consumeToken(b, EXCLAMATION);
    exit_section_(b, m, CHAR_CLASS_EXCLAMATION, r);
    return r;
  }
public static boolean char_class_exclamation(PsiBuilder b, int l)