@angular/core
Version:
Angular - the core framework
136 lines • 15.1 kB
JavaScript
/**
* @license
* Copyright Google LLC All Rights Reserved.
*
* Use of this source code is governed by an MIT-style license that can be
* found in the LICENSE file at https://angular.io/license
*/
import { RuntimeError } from '../errors';
import { global } from '../util/global';
import localeEn from './locale_en';
/**
* This const is used to store the locale data registered with `registerLocaleData`
*/
let LOCALE_DATA = {};
/**
* Register locale data to be used internally by Angular. See the
* ["I18n guide"](guide/i18n/format-data-locale) to know how to import additional locale
* data.
*
* The signature `registerLocaleData(data: any, extraData?: any)` is deprecated since v5.1
*/
export function registerLocaleData(data, localeId, extraData) {
if (typeof localeId !== 'string') {
extraData = localeId;
localeId = data[LocaleDataIndex.LocaleId];
}
localeId = localeId.toLowerCase().replace(/_/g, '-');
LOCALE_DATA[localeId] = data;
if (extraData) {
LOCALE_DATA[localeId][LocaleDataIndex.ExtraData] = extraData;
}
}
/**
* Finds the locale data for a given locale.
*
* @param locale The locale code.
* @returns The locale data.
* @see [Internationalization (i18n) Guide](https://angular.io/guide/i18n)
*/
export function findLocaleData(locale) {
const normalizedLocale = normalizeLocale(locale);
let match = getLocaleData(normalizedLocale);
if (match) {
return match;
}
// let's try to find a parent locale
const parentLocale = normalizedLocale.split('-')[0];
match = getLocaleData(parentLocale);
if (match) {
return match;
}
if (parentLocale === 'en') {
return localeEn;
}
throw new RuntimeError(701 /* RuntimeErrorCode.MISSING_LOCALE_DATA */, ngDevMode && `Missing locale data for the locale "${locale}".`);
}
/**
* Retrieves the default currency code for the given locale.
*
* The default is defined as the first currency which is still in use.
*
* @param locale The code of the locale whose currency code we want.
* @returns The code of the default currency for the given locale.
*
*/
export function getLocaleCurrencyCode(locale) {
const data = findLocaleData(locale);
return data[LocaleDataIndex.CurrencyCode] || null;
}
/**
* Retrieves the plural function used by ICU expressions to determine the plural case to use
* for a given locale.
* @param locale A locale code for the locale format rules to use.
* @returns The plural function for the locale.
* @see {@link NgPlural}
* @see [Internationalization (i18n) Guide](guide/i18n)
*/
export function getLocalePluralCase(locale) {
const data = findLocaleData(locale);
return data[LocaleDataIndex.PluralCase];
}
/**
* Helper function to get the given `normalizedLocale` from `LOCALE_DATA`
* or from the global `ng.common.locale`.
*/
export function getLocaleData(normalizedLocale) {
if (!(normalizedLocale in LOCALE_DATA)) {
LOCALE_DATA[normalizedLocale] =
global.ng &&
global.ng.common &&
global.ng.common.locales &&
global.ng.common.locales[normalizedLocale];
}
return LOCALE_DATA[normalizedLocale];
}
/**
* Helper function to remove all the locale data from `LOCALE_DATA`.
*/
export function unregisterAllLocaleData() {
LOCALE_DATA = {};
}
/**
* Index of each type of locale data from the locale data array
*/
export var LocaleDataIndex;
(function (LocaleDataIndex) {
LocaleDataIndex[LocaleDataIndex["LocaleId"] = 0] = "LocaleId";
LocaleDataIndex[LocaleDataIndex["DayPeriodsFormat"] = 1] = "DayPeriodsFormat";
LocaleDataIndex[LocaleDataIndex["DayPeriodsStandalone"] = 2] = "DayPeriodsStandalone";
LocaleDataIndex[LocaleDataIndex["DaysFormat"] = 3] = "DaysFormat";
LocaleDataIndex[LocaleDataIndex["DaysStandalone"] = 4] = "DaysStandalone";
LocaleDataIndex[LocaleDataIndex["MonthsFormat"] = 5] = "MonthsFormat";
LocaleDataIndex[LocaleDataIndex["MonthsStandalone"] = 6] = "MonthsStandalone";
LocaleDataIndex[LocaleDataIndex["Eras"] = 7] = "Eras";
LocaleDataIndex[LocaleDataIndex["FirstDayOfWeek"] = 8] = "FirstDayOfWeek";
LocaleDataIndex[LocaleDataIndex["WeekendRange"] = 9] = "WeekendRange";
LocaleDataIndex[LocaleDataIndex["DateFormat"] = 10] = "DateFormat";
LocaleDataIndex[LocaleDataIndex["TimeFormat"] = 11] = "TimeFormat";
LocaleDataIndex[LocaleDataIndex["DateTimeFormat"] = 12] = "DateTimeFormat";
LocaleDataIndex[LocaleDataIndex["NumberSymbols"] = 13] = "NumberSymbols";
LocaleDataIndex[LocaleDataIndex["NumberFormats"] = 14] = "NumberFormats";
LocaleDataIndex[LocaleDataIndex["CurrencyCode"] = 15] = "CurrencyCode";
LocaleDataIndex[LocaleDataIndex["CurrencySymbol"] = 16] = "CurrencySymbol";
LocaleDataIndex[LocaleDataIndex["CurrencyName"] = 17] = "CurrencyName";
LocaleDataIndex[LocaleDataIndex["Currencies"] = 18] = "Currencies";
LocaleDataIndex[LocaleDataIndex["Directionality"] = 19] = "Directionality";
LocaleDataIndex[LocaleDataIndex["PluralCase"] = 20] = "PluralCase";
LocaleDataIndex[LocaleDataIndex["ExtraData"] = 21] = "ExtraData";
})(LocaleDataIndex || (LocaleDataIndex = {}));
/**
* Returns the canonical form of a locale name - lowercase with `_` replaced with `-`.
*/
function normalizeLocale(locale) {
return locale.toLowerCase().replace(/_/g, '-');
}
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See the\n * [\"I18n guide\"](guide/i18n/format-data-locale) to know how to import additional locale\n * data.\n *\n * The signature `registerLocaleData(data: any, extraData?: any)` is deprecated since v5.1\n */\nexport function registerLocaleData(data: any, localeId?: string | any, extraData?: any): void {\n  if (typeof localeId !== 'string') {\n    extraData = localeId;\n    localeId = data[LocaleDataIndex.LocaleId];\n  }\n\n  localeId = localeId.toLowerCase().replace(/_/g, '-');\n\n  LOCALE_DATA[localeId] = data;\n\n  if (extraData) {\n    LOCALE_DATA[localeId][LocaleDataIndex.ExtraData] = extraData;\n  }\n}\n\n/**\n * Finds the locale data for a given locale.\n *\n * @param locale The locale code.\n * @returns The locale data.\n * @see [Internationalization (i18n) Guide](https://angular.io/guide/i18n)\n */\nexport function findLocaleData(locale: string): any {\n  const normalizedLocale = normalizeLocale(locale);\n\n  let match = getLocaleData(normalizedLocale);\n  if (match) {\n    return match;\n  }\n\n  // let's try to find a parent locale\n  const parentLocale = normalizedLocale.split('-')[0];\n  match = getLocaleData(parentLocale);\n  if (match) {\n    return match;\n  }\n\n  if (parentLocale === 'en') {\n    return localeEn;\n  }\n\n  throw new RuntimeError(\n    RuntimeErrorCode.MISSING_LOCALE_DATA,\n    ngDevMode && `Missing locale data for the locale \"${locale}\".`,\n  );\n}\n\n/**\n * Retrieves the default currency code for the given locale.\n *\n * The default is defined as the first currency which is still in use.\n *\n * @param locale The code of the locale whose currency code we want.\n * @returns The code of the default currency for the given locale.\n *\n */\nexport function getLocaleCurrencyCode(locale: string): string | null {\n  const data = findLocaleData(locale);\n  return data[LocaleDataIndex.CurrencyCode] || null;\n}\n\n/**\n * Retrieves the plural function used by ICU expressions to determine the plural case to use\n * for a given locale.\n * @param locale A locale code for the locale format rules to use.\n * @returns The plural function for the locale.\n * @see {@link NgPlural}\n * @see [Internationalization (i18n) Guide](guide/i18n)\n */\nexport function getLocalePluralCase(locale: string): (value: number) => number {\n  const data = findLocaleData(locale);\n  return data[LocaleDataIndex.PluralCase];\n}\n\n/**\n * Helper function to get the given `normalizedLocale` from `LOCALE_DATA`\n * or from the global `ng.common.locale`.\n */\nexport function getLocaleData(normalizedLocale: string): any {\n  if (!(normalizedLocale in LOCALE_DATA)) {\n    LOCALE_DATA[normalizedLocale] =\n      global.ng &&\n      global.ng.common &&\n      global.ng.common.locales &&\n      global.ng.common.locales[normalizedLocale];\n  }\n  return LOCALE_DATA[normalizedLocale];\n}\n\n/**\n * Helper function to remove all the locale data from `LOCALE_DATA`.\n */\nexport function unregisterAllLocaleData() {\n  LOCALE_DATA = {};\n}\n\n/**\n * Index of each type of locale data from the locale data array\n */\nexport enum LocaleDataIndex {\n  LocaleId = 0,\n  DayPeriodsFormat,\n  DayPeriodsStandalone,\n  DaysFormat,\n  DaysStandalone,\n  MonthsFormat,\n  MonthsStandalone,\n  Eras,\n  FirstDayOfWeek,\n  WeekendRange,\n  DateFormat,\n  TimeFormat,\n  DateTimeFormat,\n  NumberSymbols,\n  NumberFormats,\n  CurrencyCode,\n  CurrencySymbol,\n  CurrencyName,\n  Currencies,\n  Directionality,\n  PluralCase,\n  ExtraData,\n}\n\n/**\n * Index of each type of locale data from the extra locale data array\n */\nexport const enum ExtraLocaleDataIndex {\n  ExtraDayPeriodFormats = 0,\n  ExtraDayPeriodStandalone,\n  ExtraDayPeriodsRules,\n}\n\n/**\n * Index of each value in currency data (used to describe CURRENCIES_EN in currencies.ts)\n */\nexport const enum CurrencyIndex {\n  Symbol = 0,\n  SymbolNarrow,\n  NbOfDigits,\n}\n\n/**\n * Returns the canonical form of a locale name - lowercase with `_` replaced with `-`.\n */\nfunction normalizeLocale(locale: string): string {\n  return locale.toLowerCase().replace(/_/g, '-');\n}\n"]}