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Hans Muller
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Localizations for Material (flutter#11832)
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‎dev/tools/gen_localizations.dart‎

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// Copyright 2017 The Chromium Authors. All rights reserved.
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// Use of this source code is governed by a BSD-style license that can be
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// found in the LICENSE file.
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// Given a directory that contains localized ".arb" (application resource
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// bundle) files, generates a Dart "localizations" Map definition that combines
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// the contents of the arb files. The map can be used to lookup a localized
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// string: localizations[localeString][resourceId].
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//
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// See *.arb and localizations.dart in packages/flutter/lib/src/material/i18n/.
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//
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// The arb (JSON) format files must contain a single map indexed by locale.
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// Each map value is itself a map with resource identifier keys and localized
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// resource string values.
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//
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// The arb filenames are assumed to end in "prefix_lc.arb" or "prefix_lc_cc.arb",
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// where prefix is the 2nd command line argument, lc is a language code and cc
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// is the country code. In most cases both codes are just two characters. A typical
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// filename would be "material_en.arb".
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//
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// This app is typically run by hand when a module's .arb files have been
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// updated.
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//
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// Usage: dart gen_localizations.dart directory prefix
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import 'dart:convert' show JSON;
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import 'dart:io';
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const String outputHeader = '''
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// Copyright 2017 The Chromium Authors. All rights reserved.
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// Use of this source code is governed by a BSD-style license that can be
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// found in the LICENSE file.
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// This file has been automatically generated. Please do not edit it manually.
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// To regenerate the file, use:
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// @(regenerate)
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''';
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final Map<String, Map<String, String>> localeToResources = <String, Map<String, String>>{};
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// Return s as a Dart-parseable raw string in double quotes. Expand double quotes:
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// foo => r"foo"
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// foo "bar" => r"foo " '"' r"bar" '"'
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String generateString(String s) {
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if (!s.contains('"'))
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return 'r"$s"';
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final StringBuffer output = new StringBuffer();
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bool started = false; // Have we started writing a raw string.
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for (int i = 0; i < s.length; i++) {
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if (s[i] == '"') {
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if (started)
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output.write('"');
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output.write(' \'"\' ');
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started = false;
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} else if (!started) {
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output.write('r"${s[i]}');
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started = true;
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} else {
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output.write(s[i]);
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}
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}
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if (started)
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output.write('"');
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return output.toString();
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}
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String generateLocalizationsMap() {
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final StringBuffer output = new StringBuffer();
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output.writeln('const Map<String, Map<String, String>> localizations = const <String, Map<String, String>> {');
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final String lastLocale = localeToResources.keys.last;
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for (String locale in localeToResources.keys) {
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output.writeln(' "$locale": const <String, String>{');
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final Map<String, String> resources = localeToResources[locale];
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final String lastName = resources.keys.last;
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for (String name in resources.keys) {
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final String comma = name == lastName ? "" : ",";
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final String value = generateString(resources[name]);
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output.writeln(' "$name": $value$comma');
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}
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final String comma = locale == lastLocale ? "" : ",";
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output.writeln(' }$comma');
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}
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output.writeln('};');
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return output.toString();
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}
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void processBundle(File file, String locale) {
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localeToResources[locale] ??= <String, String>{};
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final Map<String, String> resources = localeToResources[locale];
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final Map<String, dynamic> bundle = JSON.decode(file.readAsStringSync());
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for (String key in bundle.keys) {
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// The ARB file resource "attributes" for foo are called @foo.
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if (key.startsWith('@'))
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continue;
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resources[key] = bundle[key];
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}
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}
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void main(List<String> args) {
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if (args.length != 2)
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stderr.writeln('Usage: dart gen_localizations.dart directory prefix');
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// filenames are assumed to end in "prefix_lc.arb" or "prefix_lc_cc.arb", where prefix
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// is the 2nd command line argument, lc is a language code and cc is the country
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// code. In most cases both codes are just two characters.
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final Directory directory = new Directory(args[0]);
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final String prefix = args[1];
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final RegExp filenameRE = new RegExp('${prefix}_(\\w+)\\.arb\$');
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for (FileSystemEntity entity in directory.listSync()) {
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final String path = entity.path;
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if (FileSystemEntity.isFileSync(path) && filenameRE.hasMatch(path)) {
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final String locale = filenameRE.firstMatch(path)[1];
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processBundle(new File(path), locale);
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}
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}
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final String regenerate = 'dart gen_localizations ${directory.path} ${args[1]}';
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print(outputHeader.replaceFirst('@(regenerate)', regenerate));
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print(generateLocalizationsMap());
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}

‎packages/flutter/lib/src/material/app.dart‎

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decorationStyle: TextDecorationStyle.double
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);
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// Delegate that fetches the default (English) strings.
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class _MaterialLocalizationsDelegate extends LocalizationsDelegate<MaterialLocalizations> {
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const _MaterialLocalizationsDelegate();
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@override
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Future<MaterialLocalizations> load(Locale locale) {
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return new SynchronousFuture<MaterialLocalizations>(const MaterialLocalizations());
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}
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Future<MaterialLocalizations> load(Locale locale) => DefaultMaterialLocalizations.load(locale);
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@override
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bool shouldReload(_MaterialLocalizationsDelegate old) => false;
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}
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/// An application that uses material design.
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///
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/// A convenience widget that wraps a number of widgets that are commonly

‎packages/flutter/lib/src/material/i18n/localizations.dart‎

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// Copyright 2017 The Chromium Authors. All rights reserved.
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// Use of this source code is governed by a BSD-style license that can be
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// found in the LICENSE file.
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// This file has been automatically generated. Please do not edit it manually.
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// To regenerate the file, use:
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// dart gen_localizations packages/flutter/lib/src/material/i18n material
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const Map<String, Map<String, String>> localizations = const <String, Map<String, String>> {
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"ar": const <String, String>{
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"openAppDrawerTooltip": r"افتح قائمة التنقل",
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"backButtonTooltip": r"الى الخلف",
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"closeButtonTooltip": r"إغلا",
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"nextMonthTooltip": r"الشهر القادم",
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"previousMonthTooltip": r"الشهر الماضى"
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},
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"it": const <String, String>{
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"openAppDrawerTooltip": r"Apri il menu di navigazione",
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"backButtonTooltip": r"Indietro",
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"closeButtonTooltip": r"Chiudi",
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"nextMonthTooltip": r"Il prossimo mese",
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"previousMonthTooltip": r"Il mese scorso"
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},
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"pt": const <String, String>{
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"openAppDrawerTooltip": r"Abrir menu de navegação",
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"backButtonTooltip": r"Costas",
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"closeButtonTooltip": r"Fechar",
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"nextMonthTooltip": r"Próximo mês",
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"previousMonthTooltip": r"Mês anterior"
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},
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"es": const <String, String>{
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"openAppDrawerTooltip": r"Abrir el menú de navegación",
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"backButtonTooltip": r"Espalda",
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"closeButtonTooltip": r"Cerrar",
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"nextMonthTooltip": r"Próximo mes",
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"previousMonthTooltip": r"mes anterior"
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},
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"fr": const <String, String>{
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"openAppDrawerTooltip": r"Ouvrir le menu de navigation",
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"backButtonTooltip": r"Arrière",
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"closeButtonTooltip": r"Fermer",
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"nextMonthTooltip": r"Mois Suivant",
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"previousMonthTooltip": r"Le mois précédent"
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},
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"zh": const <String, String>{
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"openAppDrawerTooltip": r"打开导航菜单",
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"backButtonTooltip": r"背部",
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"closeButtonTooltip": r"关",
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"nextMonthTooltip": r"-下月就29了。",
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"previousMonthTooltip": r"前一个月"
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},
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"en": const <String, String>{
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"openAppDrawerTooltip": r"Open navigation menu",
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"backButtonTooltip": r"Back",
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"closeButtonTooltip": r"Close",
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"nextMonthTooltip": r"Next month",
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"previousMonthTooltip": r"Previous month"
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},
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"de": const <String, String>{
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"openAppDrawerTooltip": r"Navigationsmenü öffnen",
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"backButtonTooltip": r"Zurück",
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"closeButtonTooltip": r"Schließen ",
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"nextMonthTooltip": r"Nächster Monat",
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"previousMonthTooltip": r"Letzter Monat"
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},
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"ja": const <String, String>{
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"openAppDrawerTooltip": r"ナビゲーションメニューを開く",
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"backButtonTooltip": r"バック",
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"closeButtonTooltip": r"閉じる",
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"nextMonthTooltip": r"来月",
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"previousMonthTooltip": r"前の月"
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},
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"ru": const <String, String>{
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"openAppDrawerTooltip": r"Открыть меню навигации",
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"backButtonTooltip": r"назад",
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"closeButtonTooltip": r"Закрыть",
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"nextMonthTooltip": r"В следующем месяце",
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"previousMonthTooltip": r"Предыдущий месяц"
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}
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};

‎packages/flutter/lib/src/material/i18n/material_ar.arb‎

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{
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"openAppDrawerTooltip": "افتح قائمة التنقل",
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"@openAppDrawerTooltip": {
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"description": "The tooltip for the leading AppBar menu (aka 'hamburger') button",
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"type": "text"
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},
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"backButtonTooltip": "الى الخلف",
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"@backButtonTooltip": {
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"description": "The BackButton's tooltip",
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"type": "text"
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},
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"closeButtonTooltip": "إغلا",
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"@closeButtonTooltip": {
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"description": "The CloseButton's tooltip",
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"type": "text"
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},
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"nextMonthTooltip": "الشهر القادم",
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"@nextMonthTooltip": {
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"description": "The tooltip for the MonthPicker's 'next month' button.",
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"type": "text"
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},
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"previousMonthTooltip": "الشهر الماضى",
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"@previousMonthTooltip": {
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"description": "The tooltip for the MonthPicker's 'previous month' button.",
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"type": "text"
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}
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}

‎packages/flutter/lib/src/material/i18n/material_de.arb‎

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{
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"openAppDrawerTooltip": "Navigationsmenü öffnen",
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"@openAppDrawerTooltip": {
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"description": "The tooltip for the leading AppBar menu (aka 'hamburger') button",
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"type": "text"
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},
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"backButtonTooltip": "Zurück",
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"@backButtonTooltip": {
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"description": "The BackButton's tooltip",
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"type": "text"
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},
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"closeButtonTooltip": "Schließen ",
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"@closeButtonTooltip": {
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"description": "The CloseButton's tooltip",
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"type": "text"
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},
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"nextMonthTooltip": "Nächster Monat",
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"@nextMonthTooltip": {
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"description": "The tooltip for the MonthPicker's 'next month' button.",
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"type": "text"
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},
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"previousMonthTooltip": "Letzter Monat",
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"@previousMonthTooltip": {
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"description": "The tooltip for the MonthPicker's 'previous month' button.",
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"type": "text"
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}
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}

‎packages/flutter/lib/src/material/i18n/material_en.arb‎

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{
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"openAppDrawerTooltip": "Open navigation menu",
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"@openAppDrawerTooltip": {
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"description": "The tooltip for the leading AppBar menu (aka 'hamburger') button",
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"type": "text"
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},
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"backButtonTooltip": "Back",
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"@backButtonTooltip": {
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"description": "The BackButton's tooltip",
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"type": "text"
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},
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"closeButtonTooltip": "Close",
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"@closeButtonTooltip": {
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"description": "The CloseButton's tooltip",
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"type": "text"
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},
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"nextMonthTooltip": "Next month",
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"@nextMonthTooltip": {
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"description": "The tooltip for the MonthPicker's 'next month' button.",
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"type": "text"
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},
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"previousMonthTooltip": "Previous month",
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"@previousMonthTooltip": {
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"description": "The tooltip for the MonthPicker's 'previous month' button.",
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"type": "text"
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}
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}

‎packages/flutter/lib/src/material/i18n/material_es.arb‎

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{
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"openAppDrawerTooltip": "Abrir el menú de navegación",
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"@openAppDrawerTooltip": {
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"description": "The tooltip for the leading AppBar menu (aka 'hamburger') button",
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"type": "text"
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},
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"backButtonTooltip": "Espalda",
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"@backButtonTooltip": {
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"description": "The BackButton's tooltip",
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"type": "text"
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},
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"closeButtonTooltip": "Cerrar",
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"@closeButtonTooltip": {
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"description": "The CloseButton's tooltip",
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"type": "text"
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},
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"nextMonthTooltip": "Próximo mes",
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"@nextMonthTooltip": {
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"description": "The tooltip for the MonthPicker's 'next month' button.",
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"type": "text"
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},
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"previousMonthTooltip": "mes anterior",
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"@previousMonthTooltip": {
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"description": "The tooltip for the MonthPicker's 'previous month' button.",
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"type": "text"
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}
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}

‎packages/flutter/lib/src/material/i18n/material_fr.arb‎

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{
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"openAppDrawerTooltip": "Ouvrir le menu de navigation",
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"@openAppDrawerTooltip": {
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"description": "The tooltip for the leading AppBar menu (aka 'hamburger') button",
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"type": "text"
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},
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"backButtonTooltip": "Arrière",
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"@backButtonTooltip": {
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"description": "The BackButton's tooltip",
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"type": "text"
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},
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"closeButtonTooltip": "Fermer",
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"@closeButtonTooltip": {
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"description": "The CloseButton's tooltip",
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"type": "text"
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},
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"nextMonthTooltip": "Mois Suivant",
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"@nextMonthTooltip": {
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"description": "The tooltip for the MonthPicker's 'next month' button.",
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"type": "text"
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},
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"previousMonthTooltip": "Le mois précédent",
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"@previousMonthTooltip": {
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"description": "The tooltip for the MonthPicker's 'previous month' button.",
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"type": "text"
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}
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}

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