mzdm / iso_duration_parser Goto Github PK

currently not possible

as per rules, it should be like this (minus before P):
'P-10M' ... invalid input
'-P10M' ... valid input

e.g.:

IsoDuration(inYears: 3, inMonths: 6, inWeeks: 0, inDays: 4, inHours: 12, inMinutes: 30, inSeconds: 5)
to
'P3Y6M4DT12H30M5S'

convert total duration to seconds

only possible if values year and months are 0 (otherwise it would not be accurate)

e.g.:

final dur = IsoDuration(inHours: 1, inMinutes: 2, inSeconds: 5.5)
dur.toSeconds(); // 3725.5

      final duration = IsoDuration(hours: 30, minutes: 30);

Actual result: PT30H30M which as per wikipedia is not correct.

However, individual date and time values cannot exceed their moduli (e.g. a value of 13 for the month or 25 for the hour would not be permissible).[39].

I understand there might be the usual problems with time here (daylight savings), but this is part of the public api and results in an incorrect behavior without error.

Make IsoDuration implement Comparable. I am happy to send a PR with this if you like.

• DateTime parseToDate(DateTime date) - add/subtract duration to the DateTime
• String format(String format) - formats into a readable String output
• copyWith, isBefore, isAfter, isAtSameMomentAs, isPrecise, hasDecimals, ...