private static boolean process_substitution_0(PsiBuilder b, int l) {
    if (!recursion_guard_(b, l, "process_substitution_0")) return false;
    boolean r;
    r = consumeToken(b, INPUT_PROCESS_SUBSTITUTION);
    if (!r) r = consumeToken(b, OUTPUT_PROCESS_SUBSTITUTION);
    return r;
  }
private static boolean process_substitution_0(PsiBuilder b, int l)