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Expose date symbols and patterns for en_US in framework (#67900)

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* Expose date symbols and patterns for en_US in framework
This commit is contained in:
Shi-Hao Hong
2020-10-13 07:56:10 +08:00
committed by GitHub
parent 8aee75f645
commit 244f5ab598
4 changed files with 279 additions and 10 deletions
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17
dev/tools/localization/bin/gen_date_localizations.dart
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@@ -75,6 +75,7 @@ Future<void> main(List<String> rawArgs) async {
final Directory datePatternsDirectory = Directory(path.join(pathToIntl, 'src', 'data', 'dates', 'patterns'));
final Map<String, File> patternFiles = _listIntlData(datePatternsDirectory);
final StringBuffer buffer = StringBuffer();
final Set<String> supportedLocales = _supportedLocales();
buffer.writeln(
'''
@@ -94,7 +95,7 @@ Future<void> main(List<String> rawArgs) async {
buffer.writeln('const Map<String, dynamic> dateSymbols = <String, dynamic> {');
symbolFiles.forEach((String locale, File data) {
currentLocale = locale;
if (_supportedLocales().contains(locale))
if (supportedLocales.contains(locale))
buffer.writeln(_jsonToMapEntry(locale, json.decode(data.readAsStringSync())));
});
currentLocale = null;
@@ -107,7 +108,7 @@ Future<void> main(List<String> rawArgs) async {
/// supported by flutter_localizations.''');
buffer.writeln('const Map<String, Map<String, String>> datePatterns = <String, Map<String, String>> {');
patternFiles.forEach((String locale, File data) {
if (_supportedLocales().contains(locale)) {
if (supportedLocales.contains(locale)) {
final Map<String, dynamic> patterns = json.decode(data.readAsStringSync()) as Map<String, dynamic>;
buffer.writeln("'$locale': <String, String>{");
patterns.forEach((String key, dynamic value) {
@@ -164,13 +165,21 @@ String _jsonToMap(dynamic json) {
}
Set<String> _supportedLocales() {
final Set<String> supportedLocales = <String>{};
// Assumes that en_US is a supported locale by default. Without this, usage
// of the intl package APIs before Flutter populates its set of supported i18n
// date patterns and symbols may cause problems.
//
// For more context, see https://github.com/flutter/flutter/issues/67644.
final Set<String> supportedLocales = <String>{
'en_US',
};
final RegExp filenameRE = RegExp(r'(?:material|cupertino)_(\w+)\.arb$');
final Directory supportedLocalesDirectory = Directory(path.join('packages', 'flutter_localizations', 'lib', 'src', 'l10n'));
for (final FileSystemEntity entity in supportedLocalesDirectory.listSync()) {
final String filePath = entity.path;
if (FileSystemEntity.isFileSync(filePath) && filenameRE.hasMatch(filePath))
if (FileSystemEntity.isFileSync(filePath) && filenameRE.hasMatch(filePath)) {
supportedLocales.add(filenameRE.firstMatch(filePath)[1]);
}
}
return supportedLocales;