public static boolean argument(PsiBuilder b, int l) {
    if (!recursion_guard_(b, l, "argument")) return false;
    boolean r;
    Marker m = enter_section_(b, l, _NONE_, ARGUMENT, "<argument>");
    r = consumeToken(b, LITERAL_STARTS_FROM_LETTER);
    if (!r) r = consumeToken(b, LITERAL_STARTS_FROM_DIGIT);
    if (!r) r = consumeToken(b, LITERAL_STARTS_FROM_SYMBOL);
    if (!r) r = consumeToken(b, SPACED_LITERAL_STARTS_FROM_LETTER);
    if (!r) r = consumeToken(b, SPACED_LITERAL_STARTS_FROM_DIGIT);
    if (!r) r = consumeToken(b, SPACED_LITERAL_STARTS_FROM_SYMBOL);
    if (!r) r = consumeToken(b, SINGLE_Q_SPACED_LITERAL_STARTS_FROM_LETTER);
    if (!r) r = consumeToken(b, SINGLE_Q_SPACED_LITERAL_STARTS_FROM_DIGIT);
    if (!r) r = consumeToken(b, SINGLE_Q_SPACED_LITERAL_STARTS_FROM_SYMBOL);
    exit_section_(b, l, m, r, false, null);
    return r;
  }
public static boolean argument(PsiBuilder b, int l)