@Override
  public Long getQuantifierValue(@NotNull RegExpNumber number) {
    try {
      final long result = Long.parseLong(number.getUnescapedText());
      if (result >= 0xFFFFFFFFL /* max unsigned int 32 bits */) return null;
      return result;
    }
    catch (NumberFormatException e) {
      return null;
    }
  }
@Override
  public Long getQuantifierValue(@NotNull RegExpNumber number)