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| Original file line number | Diff line number | Diff line change |
|---|---|---|
| @@ -0,0 +1,134 @@ | ||
| import 'package:slang/src/builder/model/i18n_locale.dart'; | ||
|
|
||
| class ParseL10nResult { | ||
| /// The actual parameter type. | ||
| /// Is [num] for [NumberFormat] and [DateTime] for [DateFormat]. | ||
| final String paramType; | ||
|
|
||
| /// The format string that will be rendered as is. | ||
| final String format; | ||
|
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| ParseL10nResult({ | ||
| required this.paramType, | ||
| required this.format, | ||
| }); | ||
| } | ||
|
|
||
| const _numberFormats = { | ||
| 'compact', | ||
| 'compactCurrency', | ||
| 'compactSimpleCurrency', | ||
| 'compactLong', | ||
| 'currency', | ||
| 'decimalPattern', | ||
| 'decimalPatternDigits', | ||
| 'decimalPercentPattern', | ||
| 'percentPattern', | ||
| 'scientificPattern', | ||
| 'simpleCurrency', | ||
| }; | ||
|
|
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| const _numberFormatsWithNamedParameters = { | ||
| 'NumberFormat.compactCurrency', | ||
| 'NumberFormat.compactSimpleCurrency', | ||
| 'NumberFormat.currency', | ||
| 'NumberFormat.decimalPatternDigits', | ||
| 'NumberFormat.decimalPercentPattern', | ||
| 'NumberFormat.simpleCurrency', | ||
| }; | ||
|
|
||
| final _numberFormatsWithClass = { | ||
| for (final format in _numberFormats) 'NumberFormat.$format', | ||
| 'NumberFormat', | ||
| }; | ||
|
|
||
| const _dateFormats = { | ||
| 'yM', | ||
| 'yMd', | ||
| 'Hm', | ||
| 'Hms', | ||
| 'jm', | ||
| 'jms', | ||
| }; | ||
|
|
||
| final _dateFormatsWithClass = { | ||
| for (final format in _dateFormats) 'DateFormat.$format', | ||
| 'DateFormat', | ||
| }; | ||
|
|
||
| // Parses "currency(symbol: '€')" | ||
| // -> paramType: num, format: NumberFormat.currency(symbol: '€', locale: locale).format(value) | ||
| ParseL10nResult? parseL10n({ | ||
| required I18nLocale locale, | ||
| required String paramName, | ||
| required String type, | ||
| }) { | ||
| final bracketStart = type.indexOf('('); | ||
|
|
||
| // The type without parameters. | ||
| // E.g. currency(symbol: '€') -> currency | ||
| final digestedType = | ||
| bracketStart == -1 ? type : type.substring(0, bracketStart); | ||
|
|
||
| final String paramType; | ||
| if (_numberFormats.contains(digestedType) || | ||
| _numberFormatsWithClass.contains(digestedType)) { | ||
| paramType = 'num'; | ||
| } else if (_dateFormats.contains(digestedType) || | ||
| _dateFormatsWithClass.contains(digestedType)) { | ||
| paramType = 'DateTime'; | ||
| } else { | ||
| return null; | ||
| } | ||
|
|
||
| // Extract method name and arguments | ||
| final bracketEnd = type.endsWith(')') ? type.lastIndexOf(')') : -1; | ||
|
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| String methodName; | ||
| String arguments; | ||
|
|
||
| if (bracketStart != -1 && bracketEnd != -1 && bracketEnd > bracketStart) { | ||
| methodName = type.substring(0, bracketStart); | ||
| arguments = type.substring(bracketStart + 1, bracketEnd); | ||
| } else { | ||
| methodName = type; | ||
| arguments = ''; | ||
| } | ||
|
|
||
| // Prepend class if necessary | ||
| if (!type.startsWith('NumberFormat(') && | ||
| !type.startsWith('DateFormat(') && | ||
| !methodName.startsWith('NumberFormat.') && | ||
| !methodName.startsWith('DateFormat.')) { | ||
| if (paramType == 'num') { | ||
| methodName = 'NumberFormat.$methodName'; | ||
| } else if (paramType == 'DateTime') { | ||
| methodName = 'DateFormat.$methodName'; | ||
| } | ||
| } | ||
|
|
||
| // Add locale | ||
| if (paramType == 'num' && | ||
| _numberFormatsWithNamedParameters.contains(methodName)) { | ||
| // add locale as named parameter | ||
| if (arguments.isEmpty) { | ||
| arguments = "locale: '${locale.underscoreTag}'"; | ||
| } else { | ||
| arguments = "$arguments, locale: '${locale.underscoreTag}'"; | ||
| } | ||
| } else { | ||
| // add locale as positional parameter | ||
| if (!arguments.contains('locale:')) { | ||
| if (arguments.isEmpty) { | ||
| arguments = "'${locale.underscoreTag}'"; | ||
| } else { | ||
| arguments = "$arguments, '${locale.underscoreTag}'"; | ||
| } | ||
| } | ||
| } | ||
|
|
||
| return ParseL10nResult( | ||
| paramType: paramType, | ||
| format: '$methodName($arguments).format($paramName)', | ||
| ); | ||
| } |
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