tryParseDuration method

Implementation

Duration? tryParseDuration() {
  if (this == null) {
    return null;
  }

  final regex = RegExp(r"^(\d{2}):(\d{2}):(\d{2})(\.(\d{7}))?$");
  final match = regex.firstMatch(this!);

  if (match != null) {
    try {
      final hours = int.parse(match.group(1)!);
      final minutes = int.parse(match.group(2)!);
      final seconds = int.parse(match.group(3)!);
      final microseconds = int.parse(match.group(5) ?? "0");

      return Duration(
        hours: hours,
        minutes: minutes,
        seconds: seconds,
        microseconds: microseconds,
      );
    } catch (e) {
      // Falls beim Parsen der Zahlen ein Fehler auftritt
      return null;
    }
  } else {
    // Rückgabe von null, wenn das Format nicht stimmt
    return null;
  }
}