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I18n

Introduction

Now the i18n system of day.dart contains the following keys:

  • Months
  • MonthsShort
  • Weekdays
  • WeekdaysShort
  • WeekdaysMin
  • AM
  • PM

For example, let’s take a look at i18n/en.dart:

final Map<String, dynamic> Locale = {
  'Name': 'en',
  'Months': {
    1: 'January',
    2: 'February',
    3: 'March',
    4: 'April',
    5: 'May',
    6: 'June',
    7: 'July',
    8: 'August',
    9: 'September',
    10: 'October',
    11: 'November',
    12: 'December'
  },
  'Weekdays': {
    1: 'Monday',
    2: 'Tuesday',
    3: 'Wednesday',
    4: 'Thursday',
    5: 'Friday',
    6: 'Saturday',
    7: 'Sunday'
  },
  'AM': 'AM',
  'PM': 'PM',
  'RelativeTime': {
    'future': 'in %s',
    'past': '%s ago',
    's': 'a few seconds',
    'm': 'a minute',
    'mm': '%d minutes',
    'h': 'an hour',
    'hh': '%d hours',
    'd': 'a day',
    'dd': '%d days',
    'M': 'a month',
    'MM': '%d months',
    'y': 'a year',
    'yy': '%d years'
  }
};

You can see many of keys like Months, Weekdays ..., but where are the remained keys like MonthsShort mentioned above?

Because the MonthsShort is only a substring of the regular month string in English. So for example, the MonthsShort of January is Jan, take between 0 and 3.

The WeekdaysShort take between 0 and 3.

The WeekdaysMin take between 0 and 2.

But in different languages, the Short of months and weekdays isn't fully the same as in English.

You can view other locale files like i18n/zh_cn.dart for more details.

How To Use

For global usage:

import 'package:day/day.dart';
import 'package:day/i18n/zh_cn.dart' as zh_cn_locale;

void main() {
  Day.locale(zh_cn_locale.locale);

  final d = Day.fromString('2019-04-30T10:30:30.000Z');
}

For local usage:

import 'package:day/day.dart';
import 'package:day/i18n/zh_cn.dart' as zh_cn_locale;

void main() {
  final d =
      Day.fromString('2019-04-30T10:30:30.000Z').useLocale(zh_cn_locale.locale);
}

The local usage's priority is higher than the global usage.