public static boolean concatenated_pattern(PsiBuilder b, int l) {
    if (!recursion_guard_(b, l, "concatenated_pattern")) return false;
    boolean r;
    Marker m = enter_section_(b, l, _COLLAPSE_, CONCATENATED_PATTERN, "<concatenated pattern>");
    r = elemental_pattern(b, l + 1);
    r = r && concatenated_pattern_1(b, l + 1);
    exit_section_(b, l, m, r, false, null);
    return r;
  }
public static boolean concatenated_pattern(PsiBuilder b, int l)