public static boolean unreserved(PsiBuilder b, int l) {
    if (!recursion_guard_(b, l, "unreserved")) return false;
    boolean r;
    Marker m = enter_section_(b, l, _NONE_, UNRESERVED, "<unreserved>");
    r = consumeToken(b, LETTER);
    if (!r) r = consumeToken(b, DIGIT);
    if (!r) r = consumeToken(b, MINUS);
    if (!r) r = consumeToken(b, DOT);
    if (!r) r = consumeToken(b, UNDERSCORE);
    if (!r) r = consumeToken(b, TILDA);
    exit_section_(b, l, m, r, false, null);
    return r;
  }
public static boolean unreserved(PsiBuilder b, int l)