relative method

@override String relative(Duration duration, { bool dropPrefixOrSuffix = false, Abbreviation form = Abbreviation.none, })

Please note that Mongolian language string is not in it's base form. A suffix has been added to work with relativePast, relativeFuture.

Implementation

@override
String relative(
  Duration duration, {
  bool dropPrefixOrSuffix = false,
  Abbreviation form = Abbreviation.none,
}) {
  final bool past = duration.isNegative;

  duration = duration.abs();

  DurationInterval interval = MomentLocalization.relativeThreshold(duration);

  String value = getUnit(
    interval,
    form,
    dropPrefixOrSuffix: dropPrefixOrSuffix,
  );

  if (!interval.singular) {
    value = value.replaceAll(
      srDelta,
      DurationUnit.relativeDuration(duration, interval.unit).toString(),
    );
  }

  if (dropPrefixOrSuffix) return value;

  return past ? relativePast(value) : relativeFuture(value);
}