cron_parser 0.5.0

A cron parser. Spits out next cron dates starting from now or a specific date.

example/example.dart

import 'package:cron_parser/cron_parser.dart';
import 'package:timezone/standalone.dart';
import 'package:timezone/timezone.dart';

void main() {
  // by default next cron dates are starting from the current date
  var cronIterator = Cron().parse("0 * * * *", "Europe/London");
  TZDateTime nextDate = cronIterator.next();
  TZDateTime afterNextDate = cronIterator.next();

  // specify a start date to get cron dates after this date
  TZDateTime startDate = TZDateTime(getLocation("Europe/London"), 2020, 4, 01);
  cronIterator = Cron().parse("0 * * * *", "Europe/London", startDate);
  nextDate = cronIterator.next(); // 2020-04-01 01:00:00.000+0100
  var currentDateNext = cronIterator.current(); // 2020-04-01 01:00:00.000+0100
  afterNextDate = cronIterator.next(); // 2020-04-01 02:00:00.000+0100

  // by default previous cron dates are starting from the current date
  var cronIteratorPrevious = Cron().parse("0 * * * *", "Europe/London");
  TZDateTime previousDate = cronIterator.previous();
  TZDateTime beforePreviousDate = cronIterator.previous();

  // specify a start date to get cron dates before this date
  TZDateTime startDatePrevious =
      TZDateTime(getLocation("Europe/London"), 2020, 4, 01);
  cronIterator = Cron().parse("0 * * * *", "Europe/London", startDatePrevious);
  previousDate = cronIterator.previous(); // 2020-03-31 23:00:00.000+0100
  var currentDatePrevious =
      cronIterator.current(); // 2020-03-31 23:00:00.000+0100
  beforePreviousDate = cronIterator.previous(); // 2020-03-31 22:00:00.000+0100
}