public static boolean port(PsiBuilder b, int l) {
    if (!recursion_guard_(b, l, "port")) return false;
    Marker m = enter_section_(b, l, _NONE_, PORT, "<port>");
    while (true) {
      int c = current_position_(b);
      if (!consumeToken(b, DIGIT)) break;
      if (!empty_element_parsed_guard_(b, "port", c)) break;
    }
    exit_section_(b, l, m, true, false, null);
    return true;
  }
public static boolean port(PsiBuilder b, int l)