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|
- (function (global, factory) {
- typeof exports === 'object' && typeof module !== 'undefined' ? module.exports = factory() :
- typeof define === 'function' && define.amd ? define(factory) :
- (global = typeof globalThis !== 'undefined' ? globalThis : global || self, global.i18next = factory());
- })(this, (function () { 'use strict';
- const isString = obj => typeof obj === 'string';
- const defer = () => {
- let res;
- let rej;
- const promise = new Promise((resolve, reject) => {
- res = resolve;
- rej = reject;
- });
- promise.resolve = res;
- promise.reject = rej;
- return promise;
- };
- const makeString = object => {
- if (object == null) return '';
- return '' + object;
- };
- const copy = (a, s, t) => {
- a.forEach(m => {
- if (s[m]) t[m] = s[m];
- });
- };
- const lastOfPathSeparatorRegExp = /###/g;
- const cleanKey = key => key && key.indexOf('###') > -1 ? key.replace(lastOfPathSeparatorRegExp, '.') : key;
- const canNotTraverseDeeper = object => !object || isString(object);
- const getLastOfPath = (object, path, Empty) => {
- const stack = !isString(path) ? path : path.split('.');
- let stackIndex = 0;
- while (stackIndex < stack.length - 1) {
- if (canNotTraverseDeeper(object)) return {};
- const key = cleanKey(stack[stackIndex]);
- if (!object[key] && Empty) object[key] = new Empty();
- if (Object.prototype.hasOwnProperty.call(object, key)) {
- object = object[key];
- } else {
- object = {};
- }
- ++stackIndex;
- }
- if (canNotTraverseDeeper(object)) return {};
- return {
- obj: object,
- k: cleanKey(stack[stackIndex])
- };
- };
- const setPath = (object, path, newValue) => {
- const {
- obj,
- k
- } = getLastOfPath(object, path, Object);
- if (obj !== undefined || path.length === 1) {
- obj[k] = newValue;
- return;
- }
- let e = path[path.length - 1];
- let p = path.slice(0, path.length - 1);
- let last = getLastOfPath(object, p, Object);
- while (last.obj === undefined && p.length) {
- e = `${p[p.length - 1]}.${e}`;
- p = p.slice(0, p.length - 1);
- last = getLastOfPath(object, p, Object);
- if (last?.obj && typeof last.obj[`${last.k}.${e}`] !== 'undefined') {
- last.obj = undefined;
- }
- }
- last.obj[`${last.k}.${e}`] = newValue;
- };
- const pushPath = (object, path, newValue, concat) => {
- const {
- obj,
- k
- } = getLastOfPath(object, path, Object);
- obj[k] = obj[k] || [];
- obj[k].push(newValue);
- };
- const getPath = (object, path) => {
- const {
- obj,
- k
- } = getLastOfPath(object, path);
- if (!obj) return undefined;
- if (!Object.prototype.hasOwnProperty.call(obj, k)) return undefined;
- return obj[k];
- };
- const getPathWithDefaults = (data, defaultData, key) => {
- const value = getPath(data, key);
- if (value !== undefined) {
- return value;
- }
- return getPath(defaultData, key);
- };
- const deepExtend = (target, source, overwrite) => {
- for (const prop in source) {
- if (prop !== '__proto__' && prop !== 'constructor') {
- if (prop in target) {
- if (isString(target[prop]) || target[prop] instanceof String || isString(source[prop]) || source[prop] instanceof String) {
- if (overwrite) target[prop] = source[prop];
- } else {
- deepExtend(target[prop], source[prop], overwrite);
- }
- } else {
- target[prop] = source[prop];
- }
- }
- }
- return target;
- };
- const regexEscape = str => str.replace(/[\-\[\]\/\{\}\(\)\*\+\?\.\\\^\$\|]/g, '\\$&');
- var _entityMap = {
- '&': '&',
- '<': '<',
- '>': '>',
- '"': '"',
- "'": ''',
- '/': '/'
- };
- const escape = data => {
- if (isString(data)) {
- return data.replace(/[&<>"'\/]/g, s => _entityMap[s]);
- }
- return data;
- };
- class RegExpCache {
- constructor(capacity) {
- this.capacity = capacity;
- this.regExpMap = new Map();
- this.regExpQueue = [];
- }
- getRegExp(pattern) {
- const regExpFromCache = this.regExpMap.get(pattern);
- if (regExpFromCache !== undefined) {
- return regExpFromCache;
- }
- const regExpNew = new RegExp(pattern);
- if (this.regExpQueue.length === this.capacity) {
- this.regExpMap.delete(this.regExpQueue.shift());
- }
- this.regExpMap.set(pattern, regExpNew);
- this.regExpQueue.push(pattern);
- return regExpNew;
- }
- }
- const chars = [' ', ',', '?', '!', ';'];
- const looksLikeObjectPathRegExpCache = new RegExpCache(20);
- const looksLikeObjectPath = (key, nsSeparator, keySeparator) => {
- nsSeparator = nsSeparator || '';
- keySeparator = keySeparator || '';
- const possibleChars = chars.filter(c => nsSeparator.indexOf(c) < 0 && keySeparator.indexOf(c) < 0);
- if (possibleChars.length === 0) return true;
- const r = looksLikeObjectPathRegExpCache.getRegExp(`(${possibleChars.map(c => c === '?' ? '\\?' : c).join('|')})`);
- let matched = !r.test(key);
- if (!matched) {
- const ki = key.indexOf(keySeparator);
- if (ki > 0 && !r.test(key.substring(0, ki))) {
- matched = true;
- }
- }
- return matched;
- };
- const deepFind = (obj, path, keySeparator = '.') => {
- if (!obj) return undefined;
- if (obj[path]) {
- if (!Object.prototype.hasOwnProperty.call(obj, path)) return undefined;
- return obj[path];
- }
- const tokens = path.split(keySeparator);
- let current = obj;
- for (let i = 0; i < tokens.length;) {
- if (!current || typeof current !== 'object') {
- return undefined;
- }
- let next;
- let nextPath = '';
- for (let j = i; j < tokens.length; ++j) {
- if (j !== i) {
- nextPath += keySeparator;
- }
- nextPath += tokens[j];
- next = current[nextPath];
- if (next !== undefined) {
- if (['string', 'number', 'boolean'].indexOf(typeof next) > -1 && j < tokens.length - 1) {
- continue;
- }
- i += j - i + 1;
- break;
- }
- }
- current = next;
- }
- return current;
- };
- const getCleanedCode = code => code?.replace('_', '-');
- const consoleLogger = {
- type: 'logger',
- log(args) {
- this.output('log', args);
- },
- warn(args) {
- this.output('warn', args);
- },
- error(args) {
- this.output('error', args);
- },
- output(type, args) {
- console?.[type]?.apply?.(console, args);
- }
- };
- class Logger {
- constructor(concreteLogger, options = {}) {
- this.init(concreteLogger, options);
- }
- init(concreteLogger, options = {}) {
- this.prefix = options.prefix || 'i18next:';
- this.logger = concreteLogger || consoleLogger;
- this.options = options;
- this.debug = options.debug;
- }
- log(...args) {
- return this.forward(args, 'log', '', true);
- }
- warn(...args) {
- return this.forward(args, 'warn', '', true);
- }
- error(...args) {
- return this.forward(args, 'error', '');
- }
- deprecate(...args) {
- return this.forward(args, 'warn', 'WARNING DEPRECATED: ', true);
- }
- forward(args, lvl, prefix, debugOnly) {
- if (debugOnly && !this.debug) return null;
- if (isString(args[0])) args[0] = `${prefix}${this.prefix} ${args[0]}`;
- return this.logger[lvl](args);
- }
- create(moduleName) {
- return new Logger(this.logger, {
- ...{
- prefix: `${this.prefix}:${moduleName}:`
- },
- ...this.options
- });
- }
- clone(options) {
- options = options || this.options;
- options.prefix = options.prefix || this.prefix;
- return new Logger(this.logger, options);
- }
- }
- var baseLogger = new Logger();
- class EventEmitter {
- constructor() {
- this.observers = {};
- }
- on(events, listener) {
- events.split(' ').forEach(event => {
- if (!this.observers[event]) this.observers[event] = new Map();
- const numListeners = this.observers[event].get(listener) || 0;
- this.observers[event].set(listener, numListeners + 1);
- });
- return this;
- }
- off(event, listener) {
- if (!this.observers[event]) return;
- if (!listener) {
- delete this.observers[event];
- return;
- }
- this.observers[event].delete(listener);
- }
- emit(event, ...args) {
- if (this.observers[event]) {
- const cloned = Array.from(this.observers[event].entries());
- cloned.forEach(([observer, numTimesAdded]) => {
- for (let i = 0; i < numTimesAdded; i++) {
- observer(...args);
- }
- });
- }
- if (this.observers['*']) {
- const cloned = Array.from(this.observers['*'].entries());
- cloned.forEach(([observer, numTimesAdded]) => {
- for (let i = 0; i < numTimesAdded; i++) {
- observer.apply(observer, [event, ...args]);
- }
- });
- }
- }
- }
- class ResourceStore extends EventEmitter {
- constructor(data, options = {
- ns: ['translation'],
- defaultNS: 'translation'
- }) {
- super();
- this.data = data || {};
- this.options = options;
- if (this.options.keySeparator === undefined) {
- this.options.keySeparator = '.';
- }
- if (this.options.ignoreJSONStructure === undefined) {
- this.options.ignoreJSONStructure = true;
- }
- }
- addNamespaces(ns) {
- if (this.options.ns.indexOf(ns) < 0) {
- this.options.ns.push(ns);
- }
- }
- removeNamespaces(ns) {
- const index = this.options.ns.indexOf(ns);
- if (index > -1) {
- this.options.ns.splice(index, 1);
- }
- }
- getResource(lng, ns, key, options = {}) {
- const keySeparator = options.keySeparator !== undefined ? options.keySeparator : this.options.keySeparator;
- const ignoreJSONStructure = options.ignoreJSONStructure !== undefined ? options.ignoreJSONStructure : this.options.ignoreJSONStructure;
- let path;
- if (lng.indexOf('.') > -1) {
- path = lng.split('.');
- } else {
- path = [lng, ns];
- if (key) {
- if (Array.isArray(key)) {
- path.push(...key);
- } else if (isString(key) && keySeparator) {
- path.push(...key.split(keySeparator));
- } else {
- path.push(key);
- }
- }
- }
- const result = getPath(this.data, path);
- if (!result && !ns && !key && lng.indexOf('.') > -1) {
- lng = path[0];
- ns = path[1];
- key = path.slice(2).join('.');
- }
- if (result || !ignoreJSONStructure || !isString(key)) return result;
- return deepFind(this.data?.[lng]?.[ns], key, keySeparator);
- }
- addResource(lng, ns, key, value, options = {
- silent: false
- }) {
- const keySeparator = options.keySeparator !== undefined ? options.keySeparator : this.options.keySeparator;
- let path = [lng, ns];
- if (key) path = path.concat(keySeparator ? key.split(keySeparator) : key);
- if (lng.indexOf('.') > -1) {
- path = lng.split('.');
- value = ns;
- ns = path[1];
- }
- this.addNamespaces(ns);
- setPath(this.data, path, value);
- if (!options.silent) this.emit('added', lng, ns, key, value);
- }
- addResources(lng, ns, resources, options = {
- silent: false
- }) {
- for (const m in resources) {
- if (isString(resources[m]) || Array.isArray(resources[m])) this.addResource(lng, ns, m, resources[m], {
- silent: true
- });
- }
- if (!options.silent) this.emit('added', lng, ns, resources);
- }
- addResourceBundle(lng, ns, resources, deep, overwrite, options = {
- silent: false,
- skipCopy: false
- }) {
- let path = [lng, ns];
- if (lng.indexOf('.') > -1) {
- path = lng.split('.');
- deep = resources;
- resources = ns;
- ns = path[1];
- }
- this.addNamespaces(ns);
- let pack = getPath(this.data, path) || {};
- if (!options.skipCopy) resources = JSON.parse(JSON.stringify(resources));
- if (deep) {
- deepExtend(pack, resources, overwrite);
- } else {
- pack = {
- ...pack,
- ...resources
- };
- }
- setPath(this.data, path, pack);
- if (!options.silent) this.emit('added', lng, ns, resources);
- }
- removeResourceBundle(lng, ns) {
- if (this.hasResourceBundle(lng, ns)) {
- delete this.data[lng][ns];
- }
- this.removeNamespaces(ns);
- this.emit('removed', lng, ns);
- }
- hasResourceBundle(lng, ns) {
- return this.getResource(lng, ns) !== undefined;
- }
- getResourceBundle(lng, ns) {
- if (!ns) ns = this.options.defaultNS;
- return this.getResource(lng, ns);
- }
- getDataByLanguage(lng) {
- return this.data[lng];
- }
- hasLanguageSomeTranslations(lng) {
- const data = this.getDataByLanguage(lng);
- const n = data && Object.keys(data) || [];
- return !!n.find(v => data[v] && Object.keys(data[v]).length > 0);
- }
- toJSON() {
- return this.data;
- }
- }
- var postProcessor = {
- processors: {},
- addPostProcessor(module) {
- this.processors[module.name] = module;
- },
- handle(processors, value, key, options, translator) {
- processors.forEach(processor => {
- value = this.processors[processor]?.process(value, key, options, translator) ?? value;
- });
- return value;
- }
- };
- const PATH_KEY = Symbol('i18next/PATH_KEY');
- function createProxy() {
- const state = [];
- const handler = Object.create(null);
- let proxy;
- handler.get = (target, key) => {
- proxy?.revoke?.();
- if (key === PATH_KEY) return state;
- state.push(key);
- proxy = Proxy.revocable(target, handler);
- return proxy.proxy;
- };
- return Proxy.revocable(Object.create(null), handler).proxy;
- }
- function keysFromSelector(selector, opts) {
- const {
- [PATH_KEY]: path
- } = selector(createProxy());
- return path.join(opts?.keySeparator ?? '.');
- }
- const checkedLoadedFor = {};
- const shouldHandleAsObject = res => !isString(res) && typeof res !== 'boolean' && typeof res !== 'number';
- class Translator extends EventEmitter {
- constructor(services, options = {}) {
- super();
- copy(['resourceStore', 'languageUtils', 'pluralResolver', 'interpolator', 'backendConnector', 'i18nFormat', 'utils'], services, this);
- this.options = options;
- if (this.options.keySeparator === undefined) {
- this.options.keySeparator = '.';
- }
- this.logger = baseLogger.create('translator');
- }
- changeLanguage(lng) {
- if (lng) this.language = lng;
- }
- exists(key, o = {
- interpolation: {}
- }) {
- const opt = {
- ...o
- };
- if (key == null) return false;
- const resolved = this.resolve(key, opt);
- if (resolved?.res === undefined) return false;
- const isObject = shouldHandleAsObject(resolved.res);
- if (opt.returnObjects === false && isObject) {
- return false;
- }
- return true;
- }
- extractFromKey(key, opt) {
- let nsSeparator = opt.nsSeparator !== undefined ? opt.nsSeparator : this.options.nsSeparator;
- if (nsSeparator === undefined) nsSeparator = ':';
- const keySeparator = opt.keySeparator !== undefined ? opt.keySeparator : this.options.keySeparator;
- let namespaces = opt.ns || this.options.defaultNS || [];
- const wouldCheckForNsInKey = nsSeparator && key.indexOf(nsSeparator) > -1;
- const seemsNaturalLanguage = !this.options.userDefinedKeySeparator && !opt.keySeparator && !this.options.userDefinedNsSeparator && !opt.nsSeparator && !looksLikeObjectPath(key, nsSeparator, keySeparator);
- if (wouldCheckForNsInKey && !seemsNaturalLanguage) {
- const m = key.match(this.interpolator.nestingRegexp);
- if (m && m.length > 0) {
- return {
- key,
- namespaces: isString(namespaces) ? [namespaces] : namespaces
- };
- }
- const parts = key.split(nsSeparator);
- if (nsSeparator !== keySeparator || nsSeparator === keySeparator && this.options.ns.indexOf(parts[0]) > -1) namespaces = parts.shift();
- key = parts.join(keySeparator);
- }
- return {
- key,
- namespaces: isString(namespaces) ? [namespaces] : namespaces
- };
- }
- translate(keys, o, lastKey) {
- let opt = typeof o === 'object' ? {
- ...o
- } : o;
- if (typeof opt !== 'object' && this.options.overloadTranslationOptionHandler) {
- opt = this.options.overloadTranslationOptionHandler(arguments);
- }
- if (typeof opt === 'object') opt = {
- ...opt
- };
- if (!opt) opt = {};
- if (keys == null) return '';
- if (typeof keys === 'function') keys = keysFromSelector(keys, {
- ...this.options,
- ...opt
- });
- if (!Array.isArray(keys)) keys = [String(keys)];
- const returnDetails = opt.returnDetails !== undefined ? opt.returnDetails : this.options.returnDetails;
- const keySeparator = opt.keySeparator !== undefined ? opt.keySeparator : this.options.keySeparator;
- const {
- key,
- namespaces
- } = this.extractFromKey(keys[keys.length - 1], opt);
- const namespace = namespaces[namespaces.length - 1];
- let nsSeparator = opt.nsSeparator !== undefined ? opt.nsSeparator : this.options.nsSeparator;
- if (nsSeparator === undefined) nsSeparator = ':';
- const lng = opt.lng || this.language;
- const appendNamespaceToCIMode = opt.appendNamespaceToCIMode || this.options.appendNamespaceToCIMode;
- if (lng?.toLowerCase() === 'cimode') {
- if (appendNamespaceToCIMode) {
- if (returnDetails) {
- return {
- res: `${namespace}${nsSeparator}${key}`,
- usedKey: key,
- exactUsedKey: key,
- usedLng: lng,
- usedNS: namespace,
- usedParams: this.getUsedParamsDetails(opt)
- };
- }
- return `${namespace}${nsSeparator}${key}`;
- }
- if (returnDetails) {
- return {
- res: key,
- usedKey: key,
- exactUsedKey: key,
- usedLng: lng,
- usedNS: namespace,
- usedParams: this.getUsedParamsDetails(opt)
- };
- }
- return key;
- }
- const resolved = this.resolve(keys, opt);
- let res = resolved?.res;
- const resUsedKey = resolved?.usedKey || key;
- const resExactUsedKey = resolved?.exactUsedKey || key;
- const noObject = ['[object Number]', '[object Function]', '[object RegExp]'];
- const joinArrays = opt.joinArrays !== undefined ? opt.joinArrays : this.options.joinArrays;
- const handleAsObjectInI18nFormat = !this.i18nFormat || this.i18nFormat.handleAsObject;
- const needsPluralHandling = opt.count !== undefined && !isString(opt.count);
- const hasDefaultValue = Translator.hasDefaultValue(opt);
- const defaultValueSuffix = needsPluralHandling ? this.pluralResolver.getSuffix(lng, opt.count, opt) : '';
- const defaultValueSuffixOrdinalFallback = opt.ordinal && needsPluralHandling ? this.pluralResolver.getSuffix(lng, opt.count, {
- ordinal: false
- }) : '';
- const needsZeroSuffixLookup = needsPluralHandling && !opt.ordinal && opt.count === 0;
- const defaultValue = needsZeroSuffixLookup && opt[`defaultValue${this.options.pluralSeparator}zero`] || opt[`defaultValue${defaultValueSuffix}`] || opt[`defaultValue${defaultValueSuffixOrdinalFallback}`] || opt.defaultValue;
- let resForObjHndl = res;
- if (handleAsObjectInI18nFormat && !res && hasDefaultValue) {
- resForObjHndl = defaultValue;
- }
- const handleAsObject = shouldHandleAsObject(resForObjHndl);
- const resType = Object.prototype.toString.apply(resForObjHndl);
- if (handleAsObjectInI18nFormat && resForObjHndl && handleAsObject && noObject.indexOf(resType) < 0 && !(isString(joinArrays) && Array.isArray(resForObjHndl))) {
- if (!opt.returnObjects && !this.options.returnObjects) {
- if (!this.options.returnedObjectHandler) {
- this.logger.warn('accessing an object - but returnObjects options is not enabled!');
- }
- const r = this.options.returnedObjectHandler ? this.options.returnedObjectHandler(resUsedKey, resForObjHndl, {
- ...opt,
- ns: namespaces
- }) : `key '${key} (${this.language})' returned an object instead of string.`;
- if (returnDetails) {
- resolved.res = r;
- resolved.usedParams = this.getUsedParamsDetails(opt);
- return resolved;
- }
- return r;
- }
- if (keySeparator) {
- const resTypeIsArray = Array.isArray(resForObjHndl);
- const copy = resTypeIsArray ? [] : {};
- const newKeyToUse = resTypeIsArray ? resExactUsedKey : resUsedKey;
- for (const m in resForObjHndl) {
- if (Object.prototype.hasOwnProperty.call(resForObjHndl, m)) {
- const deepKey = `${newKeyToUse}${keySeparator}${m}`;
- if (hasDefaultValue && !res) {
- copy[m] = this.translate(deepKey, {
- ...opt,
- defaultValue: shouldHandleAsObject(defaultValue) ? defaultValue[m] : undefined,
- ...{
- joinArrays: false,
- ns: namespaces
- }
- });
- } else {
- copy[m] = this.translate(deepKey, {
- ...opt,
- ...{
- joinArrays: false,
- ns: namespaces
- }
- });
- }
- if (copy[m] === deepKey) copy[m] = resForObjHndl[m];
- }
- }
- res = copy;
- }
- } else if (handleAsObjectInI18nFormat && isString(joinArrays) && Array.isArray(res)) {
- res = res.join(joinArrays);
- if (res) res = this.extendTranslation(res, keys, opt, lastKey);
- } else {
- let usedDefault = false;
- let usedKey = false;
- if (!this.isValidLookup(res) && hasDefaultValue) {
- usedDefault = true;
- res = defaultValue;
- }
- if (!this.isValidLookup(res)) {
- usedKey = true;
- res = key;
- }
- const missingKeyNoValueFallbackToKey = opt.missingKeyNoValueFallbackToKey || this.options.missingKeyNoValueFallbackToKey;
- const resForMissing = missingKeyNoValueFallbackToKey && usedKey ? undefined : res;
- const updateMissing = hasDefaultValue && defaultValue !== res && this.options.updateMissing;
- if (usedKey || usedDefault || updateMissing) {
- this.logger.log(updateMissing ? 'updateKey' : 'missingKey', lng, namespace, key, updateMissing ? defaultValue : res);
- if (keySeparator) {
- const fk = this.resolve(key, {
- ...opt,
- keySeparator: false
- });
- if (fk && fk.res) this.logger.warn('Seems the loaded translations were in flat JSON format instead of nested. Either set keySeparator: false on init or make sure your translations are published in nested format.');
- }
- let lngs = [];
- const fallbackLngs = this.languageUtils.getFallbackCodes(this.options.fallbackLng, opt.lng || this.language);
- if (this.options.saveMissingTo === 'fallback' && fallbackLngs && fallbackLngs[0]) {
- for (let i = 0; i < fallbackLngs.length; i++) {
- lngs.push(fallbackLngs[i]);
- }
- } else if (this.options.saveMissingTo === 'all') {
- lngs = this.languageUtils.toResolveHierarchy(opt.lng || this.language);
- } else {
- lngs.push(opt.lng || this.language);
- }
- const send = (l, k, specificDefaultValue) => {
- const defaultForMissing = hasDefaultValue && specificDefaultValue !== res ? specificDefaultValue : resForMissing;
- if (this.options.missingKeyHandler) {
- this.options.missingKeyHandler(l, namespace, k, defaultForMissing, updateMissing, opt);
- } else if (this.backendConnector?.saveMissing) {
- this.backendConnector.saveMissing(l, namespace, k, defaultForMissing, updateMissing, opt);
- }
- this.emit('missingKey', l, namespace, k, res);
- };
- if (this.options.saveMissing) {
- if (this.options.saveMissingPlurals && needsPluralHandling) {
- lngs.forEach(language => {
- const suffixes = this.pluralResolver.getSuffixes(language, opt);
- if (needsZeroSuffixLookup && opt[`defaultValue${this.options.pluralSeparator}zero`] && suffixes.indexOf(`${this.options.pluralSeparator}zero`) < 0) {
- suffixes.push(`${this.options.pluralSeparator}zero`);
- }
- suffixes.forEach(suffix => {
- send([language], key + suffix, opt[`defaultValue${suffix}`] || defaultValue);
- });
- });
- } else {
- send(lngs, key, defaultValue);
- }
- }
- }
- res = this.extendTranslation(res, keys, opt, resolved, lastKey);
- if (usedKey && res === key && this.options.appendNamespaceToMissingKey) {
- res = `${namespace}${nsSeparator}${key}`;
- }
- if ((usedKey || usedDefault) && this.options.parseMissingKeyHandler) {
- res = this.options.parseMissingKeyHandler(this.options.appendNamespaceToMissingKey ? `${namespace}${nsSeparator}${key}` : key, usedDefault ? res : undefined, opt);
- }
- }
- if (returnDetails) {
- resolved.res = res;
- resolved.usedParams = this.getUsedParamsDetails(opt);
- return resolved;
- }
- return res;
- }
- extendTranslation(res, key, opt, resolved, lastKey) {
- if (this.i18nFormat?.parse) {
- res = this.i18nFormat.parse(res, {
- ...this.options.interpolation.defaultVariables,
- ...opt
- }, opt.lng || this.language || resolved.usedLng, resolved.usedNS, resolved.usedKey, {
- resolved
- });
- } else if (!opt.skipInterpolation) {
- if (opt.interpolation) this.interpolator.init({
- ...opt,
- ...{
- interpolation: {
- ...this.options.interpolation,
- ...opt.interpolation
- }
- }
- });
- const skipOnVariables = isString(res) && (opt?.interpolation?.skipOnVariables !== undefined ? opt.interpolation.skipOnVariables : this.options.interpolation.skipOnVariables);
- let nestBef;
- if (skipOnVariables) {
- const nb = res.match(this.interpolator.nestingRegexp);
- nestBef = nb && nb.length;
- }
- let data = opt.replace && !isString(opt.replace) ? opt.replace : opt;
- if (this.options.interpolation.defaultVariables) data = {
- ...this.options.interpolation.defaultVariables,
- ...data
- };
- res = this.interpolator.interpolate(res, data, opt.lng || this.language || resolved.usedLng, opt);
- if (skipOnVariables) {
- const na = res.match(this.interpolator.nestingRegexp);
- const nestAft = na && na.length;
- if (nestBef < nestAft) opt.nest = false;
- }
- if (!opt.lng && resolved && resolved.res) opt.lng = this.language || resolved.usedLng;
- if (opt.nest !== false) res = this.interpolator.nest(res, (...args) => {
- if (lastKey?.[0] === args[0] && !opt.context) {
- this.logger.warn(`It seems you are nesting recursively key: ${args[0]} in key: ${key[0]}`);
- return null;
- }
- return this.translate(...args, key);
- }, opt);
- if (opt.interpolation) this.interpolator.reset();
- }
- const postProcess = opt.postProcess || this.options.postProcess;
- const postProcessorNames = isString(postProcess) ? [postProcess] : postProcess;
- if (res != null && postProcessorNames?.length && opt.applyPostProcessor !== false) {
- res = postProcessor.handle(postProcessorNames, res, key, this.options && this.options.postProcessPassResolved ? {
- i18nResolved: {
- ...resolved,
- usedParams: this.getUsedParamsDetails(opt)
- },
- ...opt
- } : opt, this);
- }
- return res;
- }
- resolve(keys, opt = {}) {
- let found;
- let usedKey;
- let exactUsedKey;
- let usedLng;
- let usedNS;
- if (isString(keys)) keys = [keys];
- keys.forEach(k => {
- if (this.isValidLookup(found)) return;
- const extracted = this.extractFromKey(k, opt);
- const key = extracted.key;
- usedKey = key;
- let namespaces = extracted.namespaces;
- if (this.options.fallbackNS) namespaces = namespaces.concat(this.options.fallbackNS);
- const needsPluralHandling = opt.count !== undefined && !isString(opt.count);
- const needsZeroSuffixLookup = needsPluralHandling && !opt.ordinal && opt.count === 0;
- const needsContextHandling = opt.context !== undefined && (isString(opt.context) || typeof opt.context === 'number') && opt.context !== '';
- const codes = opt.lngs ? opt.lngs : this.languageUtils.toResolveHierarchy(opt.lng || this.language, opt.fallbackLng);
- namespaces.forEach(ns => {
- if (this.isValidLookup(found)) return;
- usedNS = ns;
- if (!checkedLoadedFor[`${codes[0]}-${ns}`] && this.utils?.hasLoadedNamespace && !this.utils?.hasLoadedNamespace(usedNS)) {
- checkedLoadedFor[`${codes[0]}-${ns}`] = true;
- this.logger.warn(`key "${usedKey}" for languages "${codes.join(', ')}" won't get resolved as namespace "${usedNS}" was not yet loaded`, 'This means something IS WRONG in your setup. You access the t function before i18next.init / i18next.loadNamespace / i18next.changeLanguage was done. Wait for the callback or Promise to resolve before accessing it!!!');
- }
- codes.forEach(code => {
- if (this.isValidLookup(found)) return;
- usedLng = code;
- const finalKeys = [key];
- if (this.i18nFormat?.addLookupKeys) {
- this.i18nFormat.addLookupKeys(finalKeys, key, code, ns, opt);
- } else {
- let pluralSuffix;
- if (needsPluralHandling) pluralSuffix = this.pluralResolver.getSuffix(code, opt.count, opt);
- const zeroSuffix = `${this.options.pluralSeparator}zero`;
- const ordinalPrefix = `${this.options.pluralSeparator}ordinal${this.options.pluralSeparator}`;
- if (needsPluralHandling) {
- if (opt.ordinal && pluralSuffix.indexOf(ordinalPrefix) === 0) {
- finalKeys.push(key + pluralSuffix.replace(ordinalPrefix, this.options.pluralSeparator));
- }
- finalKeys.push(key + pluralSuffix);
- if (needsZeroSuffixLookup) {
- finalKeys.push(key + zeroSuffix);
- }
- }
- if (needsContextHandling) {
- const contextKey = `${key}${this.options.contextSeparator || '_'}${opt.context}`;
- finalKeys.push(contextKey);
- if (needsPluralHandling) {
- if (opt.ordinal && pluralSuffix.indexOf(ordinalPrefix) === 0) {
- finalKeys.push(contextKey + pluralSuffix.replace(ordinalPrefix, this.options.pluralSeparator));
- }
- finalKeys.push(contextKey + pluralSuffix);
- if (needsZeroSuffixLookup) {
- finalKeys.push(contextKey + zeroSuffix);
- }
- }
- }
- }
- let possibleKey;
- while (possibleKey = finalKeys.pop()) {
- if (!this.isValidLookup(found)) {
- exactUsedKey = possibleKey;
- found = this.getResource(code, ns, possibleKey, opt);
- }
- }
- });
- });
- });
- return {
- res: found,
- usedKey,
- exactUsedKey,
- usedLng,
- usedNS
- };
- }
- isValidLookup(res) {
- return res !== undefined && !(!this.options.returnNull && res === null) && !(!this.options.returnEmptyString && res === '');
- }
- getResource(code, ns, key, options = {}) {
- if (this.i18nFormat?.getResource) return this.i18nFormat.getResource(code, ns, key, options);
- return this.resourceStore.getResource(code, ns, key, options);
- }
- getUsedParamsDetails(options = {}) {
- const optionsKeys = ['defaultValue', 'ordinal', 'context', 'replace', 'lng', 'lngs', 'fallbackLng', 'ns', 'keySeparator', 'nsSeparator', 'returnObjects', 'returnDetails', 'joinArrays', 'postProcess', 'interpolation'];
- const useOptionsReplaceForData = options.replace && !isString(options.replace);
- let data = useOptionsReplaceForData ? options.replace : options;
- if (useOptionsReplaceForData && typeof options.count !== 'undefined') {
- data.count = options.count;
- }
- if (this.options.interpolation.defaultVariables) {
- data = {
- ...this.options.interpolation.defaultVariables,
- ...data
- };
- }
- if (!useOptionsReplaceForData) {
- data = {
- ...data
- };
- for (const key of optionsKeys) {
- delete data[key];
- }
- }
- return data;
- }
- static hasDefaultValue(options) {
- const prefix = 'defaultValue';
- for (const option in options) {
- if (Object.prototype.hasOwnProperty.call(options, option) && prefix === option.substring(0, prefix.length) && undefined !== options[option]) {
- return true;
- }
- }
- return false;
- }
- }
- class LanguageUtil {
- constructor(options) {
- this.options = options;
- this.supportedLngs = this.options.supportedLngs || false;
- this.logger = baseLogger.create('languageUtils');
- }
- getScriptPartFromCode(code) {
- code = getCleanedCode(code);
- if (!code || code.indexOf('-') < 0) return null;
- const p = code.split('-');
- if (p.length === 2) return null;
- p.pop();
- if (p[p.length - 1].toLowerCase() === 'x') return null;
- return this.formatLanguageCode(p.join('-'));
- }
- getLanguagePartFromCode(code) {
- code = getCleanedCode(code);
- if (!code || code.indexOf('-') < 0) return code;
- const p = code.split('-');
- return this.formatLanguageCode(p[0]);
- }
- formatLanguageCode(code) {
- if (isString(code) && code.indexOf('-') > -1) {
- let formattedCode;
- try {
- formattedCode = Intl.getCanonicalLocales(code)[0];
- } catch (e) {}
- if (formattedCode && this.options.lowerCaseLng) {
- formattedCode = formattedCode.toLowerCase();
- }
- if (formattedCode) return formattedCode;
- if (this.options.lowerCaseLng) {
- return code.toLowerCase();
- }
- return code;
- }
- return this.options.cleanCode || this.options.lowerCaseLng ? code.toLowerCase() : code;
- }
- isSupportedCode(code) {
- if (this.options.load === 'languageOnly' || this.options.nonExplicitSupportedLngs) {
- code = this.getLanguagePartFromCode(code);
- }
- return !this.supportedLngs || !this.supportedLngs.length || this.supportedLngs.indexOf(code) > -1;
- }
- getBestMatchFromCodes(codes) {
- if (!codes) return null;
- let found;
- codes.forEach(code => {
- if (found) return;
- const cleanedLng = this.formatLanguageCode(code);
- if (!this.options.supportedLngs || this.isSupportedCode(cleanedLng)) found = cleanedLng;
- });
- if (!found && this.options.supportedLngs) {
- codes.forEach(code => {
- if (found) return;
- const lngScOnly = this.getScriptPartFromCode(code);
- if (this.isSupportedCode(lngScOnly)) return found = lngScOnly;
- const lngOnly = this.getLanguagePartFromCode(code);
- if (this.isSupportedCode(lngOnly)) return found = lngOnly;
- found = this.options.supportedLngs.find(supportedLng => {
- if (supportedLng === lngOnly) return supportedLng;
- if (supportedLng.indexOf('-') < 0 && lngOnly.indexOf('-') < 0) return;
- if (supportedLng.indexOf('-') > 0 && lngOnly.indexOf('-') < 0 && supportedLng.substring(0, supportedLng.indexOf('-')) === lngOnly) return supportedLng;
- if (supportedLng.indexOf(lngOnly) === 0 && lngOnly.length > 1) return supportedLng;
- });
- });
- }
- if (!found) found = this.getFallbackCodes(this.options.fallbackLng)[0];
- return found;
- }
- getFallbackCodes(fallbacks, code) {
- if (!fallbacks) return [];
- if (typeof fallbacks === 'function') fallbacks = fallbacks(code);
- if (isString(fallbacks)) fallbacks = [fallbacks];
- if (Array.isArray(fallbacks)) return fallbacks;
- if (!code) return fallbacks.default || [];
- let found = fallbacks[code];
- if (!found) found = fallbacks[this.getScriptPartFromCode(code)];
- if (!found) found = fallbacks[this.formatLanguageCode(code)];
- if (!found) found = fallbacks[this.getLanguagePartFromCode(code)];
- if (!found) found = fallbacks.default;
- return found || [];
- }
- toResolveHierarchy(code, fallbackCode) {
- const fallbackCodes = this.getFallbackCodes((fallbackCode === false ? [] : fallbackCode) || this.options.fallbackLng || [], code);
- const codes = [];
- const addCode = c => {
- if (!c) return;
- if (this.isSupportedCode(c)) {
- codes.push(c);
- } else {
- this.logger.warn(`rejecting language code not found in supportedLngs: ${c}`);
- }
- };
- if (isString(code) && (code.indexOf('-') > -1 || code.indexOf('_') > -1)) {
- if (this.options.load !== 'languageOnly') addCode(this.formatLanguageCode(code));
- if (this.options.load !== 'languageOnly' && this.options.load !== 'currentOnly') addCode(this.getScriptPartFromCode(code));
- if (this.options.load !== 'currentOnly') addCode(this.getLanguagePartFromCode(code));
- } else if (isString(code)) {
- addCode(this.formatLanguageCode(code));
- }
- fallbackCodes.forEach(fc => {
- if (codes.indexOf(fc) < 0) addCode(this.formatLanguageCode(fc));
- });
- return codes;
- }
- }
- const suffixesOrder = {
- zero: 0,
- one: 1,
- two: 2,
- few: 3,
- many: 4,
- other: 5
- };
- const dummyRule = {
- select: count => count === 1 ? 'one' : 'other',
- resolvedOptions: () => ({
- pluralCategories: ['one', 'other']
- })
- };
- class PluralResolver {
- constructor(languageUtils, options = {}) {
- this.languageUtils = languageUtils;
- this.options = options;
- this.logger = baseLogger.create('pluralResolver');
- this.pluralRulesCache = {};
- }
- addRule(lng, obj) {
- this.rules[lng] = obj;
- }
- clearCache() {
- this.pluralRulesCache = {};
- }
- getRule(code, options = {}) {
- const cleanedCode = getCleanedCode(code === 'dev' ? 'en' : code);
- const type = options.ordinal ? 'ordinal' : 'cardinal';
- const cacheKey = JSON.stringify({
- cleanedCode,
- type
- });
- if (cacheKey in this.pluralRulesCache) {
- return this.pluralRulesCache[cacheKey];
- }
- let rule;
- try {
- rule = new Intl.PluralRules(cleanedCode, {
- type
- });
- } catch (err) {
- if (!Intl) {
- this.logger.error('No Intl support, please use an Intl polyfill!');
- return dummyRule;
- }
- if (!code.match(/-|_/)) return dummyRule;
- const lngPart = this.languageUtils.getLanguagePartFromCode(code);
- rule = this.getRule(lngPart, options);
- }
- this.pluralRulesCache[cacheKey] = rule;
- return rule;
- }
- needsPlural(code, options = {}) {
- let rule = this.getRule(code, options);
- if (!rule) rule = this.getRule('dev', options);
- return rule?.resolvedOptions().pluralCategories.length > 1;
- }
- getPluralFormsOfKey(code, key, options = {}) {
- return this.getSuffixes(code, options).map(suffix => `${key}${suffix}`);
- }
- getSuffixes(code, options = {}) {
- let rule = this.getRule(code, options);
- if (!rule) rule = this.getRule('dev', options);
- if (!rule) return [];
- return rule.resolvedOptions().pluralCategories.sort((pluralCategory1, pluralCategory2) => suffixesOrder[pluralCategory1] - suffixesOrder[pluralCategory2]).map(pluralCategory => `${this.options.prepend}${options.ordinal ? `ordinal${this.options.prepend}` : ''}${pluralCategory}`);
- }
- getSuffix(code, count, options = {}) {
- const rule = this.getRule(code, options);
- if (rule) {
- return `${this.options.prepend}${options.ordinal ? `ordinal${this.options.prepend}` : ''}${rule.select(count)}`;
- }
- this.logger.warn(`no plural rule found for: ${code}`);
- return this.getSuffix('dev', count, options);
- }
- }
- const deepFindWithDefaults = (data, defaultData, key, keySeparator = '.', ignoreJSONStructure = true) => {
- let path = getPathWithDefaults(data, defaultData, key);
- if (!path && ignoreJSONStructure && isString(key)) {
- path = deepFind(data, key, keySeparator);
- if (path === undefined) path = deepFind(defaultData, key, keySeparator);
- }
- return path;
- };
- const regexSafe = val => val.replace(/\$/g, '$$$$');
- class Interpolator {
- constructor(options = {}) {
- this.logger = baseLogger.create('interpolator');
- this.options = options;
- this.format = options?.interpolation?.format || (value => value);
- this.init(options);
- }
- init(options = {}) {
- if (!options.interpolation) options.interpolation = {
- escapeValue: true
- };
- const {
- escape: escape$1,
- escapeValue,
- useRawValueToEscape,
- prefix,
- prefixEscaped,
- suffix,
- suffixEscaped,
- formatSeparator,
- unescapeSuffix,
- unescapePrefix,
- nestingPrefix,
- nestingPrefixEscaped,
- nestingSuffix,
- nestingSuffixEscaped,
- nestingOptionsSeparator,
- maxReplaces,
- alwaysFormat
- } = options.interpolation;
- this.escape = escape$1 !== undefined ? escape$1 : escape;
- this.escapeValue = escapeValue !== undefined ? escapeValue : true;
- this.useRawValueToEscape = useRawValueToEscape !== undefined ? useRawValueToEscape : false;
- this.prefix = prefix ? regexEscape(prefix) : prefixEscaped || '{{';
- this.suffix = suffix ? regexEscape(suffix) : suffixEscaped || '}}';
- this.formatSeparator = formatSeparator || ',';
- this.unescapePrefix = unescapeSuffix ? '' : unescapePrefix || '-';
- this.unescapeSuffix = this.unescapePrefix ? '' : unescapeSuffix || '';
- this.nestingPrefix = nestingPrefix ? regexEscape(nestingPrefix) : nestingPrefixEscaped || regexEscape('$t(');
- this.nestingSuffix = nestingSuffix ? regexEscape(nestingSuffix) : nestingSuffixEscaped || regexEscape(')');
- this.nestingOptionsSeparator = nestingOptionsSeparator || ',';
- this.maxReplaces = maxReplaces || 1000;
- this.alwaysFormat = alwaysFormat !== undefined ? alwaysFormat : false;
- this.resetRegExp();
- }
- reset() {
- if (this.options) this.init(this.options);
- }
- resetRegExp() {
- const getOrResetRegExp = (existingRegExp, pattern) => {
- if (existingRegExp?.source === pattern) {
- existingRegExp.lastIndex = 0;
- return existingRegExp;
- }
- return new RegExp(pattern, 'g');
- };
- this.regexp = getOrResetRegExp(this.regexp, `${this.prefix}(.+?)${this.suffix}`);
- this.regexpUnescape = getOrResetRegExp(this.regexpUnescape, `${this.prefix}${this.unescapePrefix}(.+?)${this.unescapeSuffix}${this.suffix}`);
- this.nestingRegexp = getOrResetRegExp(this.nestingRegexp, `${this.nestingPrefix}((?:[^()"']+|"[^"]*"|'[^']*'|\\((?:[^()]|"[^"]*"|'[^']*')*\\))*?)${this.nestingSuffix}`);
- }
- interpolate(str, data, lng, options) {
- let match;
- let value;
- let replaces;
- const defaultData = this.options && this.options.interpolation && this.options.interpolation.defaultVariables || {};
- const handleFormat = key => {
- if (key.indexOf(this.formatSeparator) < 0) {
- const path = deepFindWithDefaults(data, defaultData, key, this.options.keySeparator, this.options.ignoreJSONStructure);
- return this.alwaysFormat ? this.format(path, undefined, lng, {
- ...options,
- ...data,
- interpolationkey: key
- }) : path;
- }
- const p = key.split(this.formatSeparator);
- const k = p.shift().trim();
- const f = p.join(this.formatSeparator).trim();
- return this.format(deepFindWithDefaults(data, defaultData, k, this.options.keySeparator, this.options.ignoreJSONStructure), f, lng, {
- ...options,
- ...data,
- interpolationkey: k
- });
- };
- this.resetRegExp();
- const missingInterpolationHandler = options?.missingInterpolationHandler || this.options.missingInterpolationHandler;
- const skipOnVariables = options?.interpolation?.skipOnVariables !== undefined ? options.interpolation.skipOnVariables : this.options.interpolation.skipOnVariables;
- const todos = [{
- regex: this.regexpUnescape,
- safeValue: val => regexSafe(val)
- }, {
- regex: this.regexp,
- safeValue: val => this.escapeValue ? regexSafe(this.escape(val)) : regexSafe(val)
- }];
- todos.forEach(todo => {
- replaces = 0;
- while (match = todo.regex.exec(str)) {
- const matchedVar = match[1].trim();
- value = handleFormat(matchedVar);
- if (value === undefined) {
- if (typeof missingInterpolationHandler === 'function') {
- const temp = missingInterpolationHandler(str, match, options);
- value = isString(temp) ? temp : '';
- } else if (options && Object.prototype.hasOwnProperty.call(options, matchedVar)) {
- value = '';
- } else if (skipOnVariables) {
- value = match[0];
- continue;
- } else {
- this.logger.warn(`missed to pass in variable ${matchedVar} for interpolating ${str}`);
- value = '';
- }
- } else if (!isString(value) && !this.useRawValueToEscape) {
- value = makeString(value);
- }
- const safeValue = todo.safeValue(value);
- str = str.replace(match[0], safeValue);
- if (skipOnVariables) {
- todo.regex.lastIndex += value.length;
- todo.regex.lastIndex -= match[0].length;
- } else {
- todo.regex.lastIndex = 0;
- }
- replaces++;
- if (replaces >= this.maxReplaces) {
- break;
- }
- }
- });
- return str;
- }
- nest(str, fc, options = {}) {
- let match;
- let value;
- let clonedOptions;
- const handleHasOptions = (key, inheritedOptions) => {
- const sep = this.nestingOptionsSeparator;
- if (key.indexOf(sep) < 0) return key;
- const c = key.split(new RegExp(`${sep}[ ]*{`));
- let optionsString = `{${c[1]}`;
- key = c[0];
- optionsString = this.interpolate(optionsString, clonedOptions);
- const matchedSingleQuotes = optionsString.match(/'/g);
- const matchedDoubleQuotes = optionsString.match(/"/g);
- if ((matchedSingleQuotes?.length ?? 0) % 2 === 0 && !matchedDoubleQuotes || matchedDoubleQuotes.length % 2 !== 0) {
- optionsString = optionsString.replace(/'/g, '"');
- }
- try {
- clonedOptions = JSON.parse(optionsString);
- if (inheritedOptions) clonedOptions = {
- ...inheritedOptions,
- ...clonedOptions
- };
- } catch (e) {
- this.logger.warn(`failed parsing options string in nesting for key ${key}`, e);
- return `${key}${sep}${optionsString}`;
- }
- if (clonedOptions.defaultValue && clonedOptions.defaultValue.indexOf(this.prefix) > -1) delete clonedOptions.defaultValue;
- return key;
- };
- while (match = this.nestingRegexp.exec(str)) {
- let formatters = [];
- clonedOptions = {
- ...options
- };
- clonedOptions = clonedOptions.replace && !isString(clonedOptions.replace) ? clonedOptions.replace : clonedOptions;
- clonedOptions.applyPostProcessor = false;
- delete clonedOptions.defaultValue;
- const keyEndIndex = /{.*}/.test(match[1]) ? match[1].lastIndexOf('}') + 1 : match[1].indexOf(this.formatSeparator);
- if (keyEndIndex !== -1) {
- formatters = match[1].slice(keyEndIndex).split(this.formatSeparator).map(elem => elem.trim()).filter(Boolean);
- match[1] = match[1].slice(0, keyEndIndex);
- }
- value = fc(handleHasOptions.call(this, match[1].trim(), clonedOptions), clonedOptions);
- if (value && match[0] === str && !isString(value)) return value;
- if (!isString(value)) value = makeString(value);
- if (!value) {
- this.logger.warn(`missed to resolve ${match[1]} for nesting ${str}`);
- value = '';
- }
- if (formatters.length) {
- value = formatters.reduce((v, f) => this.format(v, f, options.lng, {
- ...options,
- interpolationkey: match[1].trim()
- }), value.trim());
- }
- str = str.replace(match[0], value);
- this.regexp.lastIndex = 0;
- }
- return str;
- }
- }
- const parseFormatStr = formatStr => {
- let formatName = formatStr.toLowerCase().trim();
- const formatOptions = {};
- if (formatStr.indexOf('(') > -1) {
- const p = formatStr.split('(');
- formatName = p[0].toLowerCase().trim();
- const optStr = p[1].substring(0, p[1].length - 1);
- if (formatName === 'currency' && optStr.indexOf(':') < 0) {
- if (!formatOptions.currency) formatOptions.currency = optStr.trim();
- } else if (formatName === 'relativetime' && optStr.indexOf(':') < 0) {
- if (!formatOptions.range) formatOptions.range = optStr.trim();
- } else {
- const opts = optStr.split(';');
- opts.forEach(opt => {
- if (opt) {
- const [key, ...rest] = opt.split(':');
- const val = rest.join(':').trim().replace(/^'+|'+$/g, '');
- const trimmedKey = key.trim();
- if (!formatOptions[trimmedKey]) formatOptions[trimmedKey] = val;
- if (val === 'false') formatOptions[trimmedKey] = false;
- if (val === 'true') formatOptions[trimmedKey] = true;
- if (!isNaN(val)) formatOptions[trimmedKey] = parseInt(val, 10);
- }
- });
- }
- }
- return {
- formatName,
- formatOptions
- };
- };
- const createCachedFormatter = fn => {
- const cache = {};
- return (v, l, o) => {
- let optForCache = o;
- if (o && o.interpolationkey && o.formatParams && o.formatParams[o.interpolationkey] && o[o.interpolationkey]) {
- optForCache = {
- ...optForCache,
- [o.interpolationkey]: undefined
- };
- }
- const key = l + JSON.stringify(optForCache);
- let frm = cache[key];
- if (!frm) {
- frm = fn(getCleanedCode(l), o);
- cache[key] = frm;
- }
- return frm(v);
- };
- };
- const createNonCachedFormatter = fn => (v, l, o) => fn(getCleanedCode(l), o)(v);
- class Formatter {
- constructor(options = {}) {
- this.logger = baseLogger.create('formatter');
- this.options = options;
- this.init(options);
- }
- init(services, options = {
- interpolation: {}
- }) {
- this.formatSeparator = options.interpolation.formatSeparator || ',';
- const cf = options.cacheInBuiltFormats ? createCachedFormatter : createNonCachedFormatter;
- this.formats = {
- number: cf((lng, opt) => {
- const formatter = new Intl.NumberFormat(lng, {
- ...opt
- });
- return val => formatter.format(val);
- }),
- currency: cf((lng, opt) => {
- const formatter = new Intl.NumberFormat(lng, {
- ...opt,
- style: 'currency'
- });
- return val => formatter.format(val);
- }),
- datetime: cf((lng, opt) => {
- const formatter = new Intl.DateTimeFormat(lng, {
- ...opt
- });
- return val => formatter.format(val);
- }),
- relativetime: cf((lng, opt) => {
- const formatter = new Intl.RelativeTimeFormat(lng, {
- ...opt
- });
- return val => formatter.format(val, opt.range || 'day');
- }),
- list: cf((lng, opt) => {
- const formatter = new Intl.ListFormat(lng, {
- ...opt
- });
- return val => formatter.format(val);
- })
- };
- }
- add(name, fc) {
- this.formats[name.toLowerCase().trim()] = fc;
- }
- addCached(name, fc) {
- this.formats[name.toLowerCase().trim()] = createCachedFormatter(fc);
- }
- format(value, format, lng, options = {}) {
- const formats = format.split(this.formatSeparator);
- if (formats.length > 1 && formats[0].indexOf('(') > 1 && formats[0].indexOf(')') < 0 && formats.find(f => f.indexOf(')') > -1)) {
- const lastIndex = formats.findIndex(f => f.indexOf(')') > -1);
- formats[0] = [formats[0], ...formats.splice(1, lastIndex)].join(this.formatSeparator);
- }
- const result = formats.reduce((mem, f) => {
- const {
- formatName,
- formatOptions
- } = parseFormatStr(f);
- if (this.formats[formatName]) {
- let formatted = mem;
- try {
- const valOptions = options?.formatParams?.[options.interpolationkey] || {};
- const l = valOptions.locale || valOptions.lng || options.locale || options.lng || lng;
- formatted = this.formats[formatName](mem, l, {
- ...formatOptions,
- ...options,
- ...valOptions
- });
- } catch (error) {
- this.logger.warn(error);
- }
- return formatted;
- } else {
- this.logger.warn(`there was no format function for ${formatName}`);
- }
- return mem;
- }, value);
- return result;
- }
- }
- const removePending = (q, name) => {
- if (q.pending[name] !== undefined) {
- delete q.pending[name];
- q.pendingCount--;
- }
- };
- class Connector extends EventEmitter {
- constructor(backend, store, services, options = {}) {
- super();
- this.backend = backend;
- this.store = store;
- this.services = services;
- this.languageUtils = services.languageUtils;
- this.options = options;
- this.logger = baseLogger.create('backendConnector');
- this.waitingReads = [];
- this.maxParallelReads = options.maxParallelReads || 10;
- this.readingCalls = 0;
- this.maxRetries = options.maxRetries >= 0 ? options.maxRetries : 5;
- this.retryTimeout = options.retryTimeout >= 1 ? options.retryTimeout : 350;
- this.state = {};
- this.queue = [];
- this.backend?.init?.(services, options.backend, options);
- }
- queueLoad(languages, namespaces, options, callback) {
- const toLoad = {};
- const pending = {};
- const toLoadLanguages = {};
- const toLoadNamespaces = {};
- languages.forEach(lng => {
- let hasAllNamespaces = true;
- namespaces.forEach(ns => {
- const name = `${lng}|${ns}`;
- if (!options.reload && this.store.hasResourceBundle(lng, ns)) {
- this.state[name] = 2;
- } else if (this.state[name] < 0) ; else if (this.state[name] === 1) {
- if (pending[name] === undefined) pending[name] = true;
- } else {
- this.state[name] = 1;
- hasAllNamespaces = false;
- if (pending[name] === undefined) pending[name] = true;
- if (toLoad[name] === undefined) toLoad[name] = true;
- if (toLoadNamespaces[ns] === undefined) toLoadNamespaces[ns] = true;
- }
- });
- if (!hasAllNamespaces) toLoadLanguages[lng] = true;
- });
- if (Object.keys(toLoad).length || Object.keys(pending).length) {
- this.queue.push({
- pending,
- pendingCount: Object.keys(pending).length,
- loaded: {},
- errors: [],
- callback
- });
- }
- return {
- toLoad: Object.keys(toLoad),
- pending: Object.keys(pending),
- toLoadLanguages: Object.keys(toLoadLanguages),
- toLoadNamespaces: Object.keys(toLoadNamespaces)
- };
- }
- loaded(name, err, data) {
- const s = name.split('|');
- const lng = s[0];
- const ns = s[1];
- if (err) this.emit('failedLoading', lng, ns, err);
- if (!err && data) {
- this.store.addResourceBundle(lng, ns, data, undefined, undefined, {
- skipCopy: true
- });
- }
- this.state[name] = err ? -1 : 2;
- if (err && data) this.state[name] = 0;
- const loaded = {};
- this.queue.forEach(q => {
- pushPath(q.loaded, [lng], ns);
- removePending(q, name);
- if (err) q.errors.push(err);
- if (q.pendingCount === 0 && !q.done) {
- Object.keys(q.loaded).forEach(l => {
- if (!loaded[l]) loaded[l] = {};
- const loadedKeys = q.loaded[l];
- if (loadedKeys.length) {
- loadedKeys.forEach(n => {
- if (loaded[l][n] === undefined) loaded[l][n] = true;
- });
- }
- });
- q.done = true;
- if (q.errors.length) {
- q.callback(q.errors);
- } else {
- q.callback();
- }
- }
- });
- this.emit('loaded', loaded);
- this.queue = this.queue.filter(q => !q.done);
- }
- read(lng, ns, fcName, tried = 0, wait = this.retryTimeout, callback) {
- if (!lng.length) return callback(null, {});
- if (this.readingCalls >= this.maxParallelReads) {
- this.waitingReads.push({
- lng,
- ns,
- fcName,
- tried,
- wait,
- callback
- });
- return;
- }
- this.readingCalls++;
- const resolver = (err, data) => {
- this.readingCalls--;
- if (this.waitingReads.length > 0) {
- const next = this.waitingReads.shift();
- this.read(next.lng, next.ns, next.fcName, next.tried, next.wait, next.callback);
- }
- if (err && data && tried < this.maxRetries) {
- setTimeout(() => {
- this.read.call(this, lng, ns, fcName, tried + 1, wait * 2, callback);
- }, wait);
- return;
- }
- callback(err, data);
- };
- const fc = this.backend[fcName].bind(this.backend);
- if (fc.length === 2) {
- try {
- const r = fc(lng, ns);
- if (r && typeof r.then === 'function') {
- r.then(data => resolver(null, data)).catch(resolver);
- } else {
- resolver(null, r);
- }
- } catch (err) {
- resolver(err);
- }
- return;
- }
- return fc(lng, ns, resolver);
- }
- prepareLoading(languages, namespaces, options = {}, callback) {
- if (!this.backend) {
- this.logger.warn('No backend was added via i18next.use. Will not load resources.');
- return callback && callback();
- }
- if (isString(languages)) languages = this.languageUtils.toResolveHierarchy(languages);
- if (isString(namespaces)) namespaces = [namespaces];
- const toLoad = this.queueLoad(languages, namespaces, options, callback);
- if (!toLoad.toLoad.length) {
- if (!toLoad.pending.length) callback();
- return null;
- }
- toLoad.toLoad.forEach(name => {
- this.loadOne(name);
- });
- }
- load(languages, namespaces, callback) {
- this.prepareLoading(languages, namespaces, {}, callback);
- }
- reload(languages, namespaces, callback) {
- this.prepareLoading(languages, namespaces, {
- reload: true
- }, callback);
- }
- loadOne(name, prefix = '') {
- const s = name.split('|');
- const lng = s[0];
- const ns = s[1];
- this.read(lng, ns, 'read', undefined, undefined, (err, data) => {
- if (err) this.logger.warn(`${prefix}loading namespace ${ns} for language ${lng} failed`, err);
- if (!err && data) this.logger.log(`${prefix}loaded namespace ${ns} for language ${lng}`, data);
- this.loaded(name, err, data);
- });
- }
- saveMissing(languages, namespace, key, fallbackValue, isUpdate, options = {}, clb = () => {}) {
- if (this.services?.utils?.hasLoadedNamespace && !this.services?.utils?.hasLoadedNamespace(namespace)) {
- this.logger.warn(`did not save key "${key}" as the namespace "${namespace}" was not yet loaded`, 'This means something IS WRONG in your setup. You access the t function before i18next.init / i18next.loadNamespace / i18next.changeLanguage was done. Wait for the callback or Promise to resolve before accessing it!!!');
- return;
- }
- if (key === undefined || key === null || key === '') return;
- if (this.backend?.create) {
- const opts = {
- ...options,
- isUpdate
- };
- const fc = this.backend.create.bind(this.backend);
- if (fc.length < 6) {
- try {
- let r;
- if (fc.length === 5) {
- r = fc(languages, namespace, key, fallbackValue, opts);
- } else {
- r = fc(languages, namespace, key, fallbackValue);
- }
- if (r && typeof r.then === 'function') {
- r.then(data => clb(null, data)).catch(clb);
- } else {
- clb(null, r);
- }
- } catch (err) {
- clb(err);
- }
- } else {
- fc(languages, namespace, key, fallbackValue, clb, opts);
- }
- }
- if (!languages || !languages[0]) return;
- this.store.addResource(languages[0], namespace, key, fallbackValue);
- }
- }
- const get = () => ({
- debug: false,
- initAsync: true,
- ns: ['translation'],
- defaultNS: ['translation'],
- fallbackLng: ['dev'],
- fallbackNS: false,
- supportedLngs: false,
- nonExplicitSupportedLngs: false,
- load: 'all',
- preload: false,
- simplifyPluralSuffix: true,
- keySeparator: '.',
- nsSeparator: ':',
- pluralSeparator: '_',
- contextSeparator: '_',
- partialBundledLanguages: false,
- saveMissing: false,
- updateMissing: false,
- saveMissingTo: 'fallback',
- saveMissingPlurals: true,
- missingKeyHandler: false,
- missingInterpolationHandler: false,
- postProcess: false,
- postProcessPassResolved: false,
- returnNull: false,
- returnEmptyString: true,
- returnObjects: false,
- joinArrays: false,
- returnedObjectHandler: false,
- parseMissingKeyHandler: false,
- appendNamespaceToMissingKey: false,
- appendNamespaceToCIMode: false,
- overloadTranslationOptionHandler: args => {
- let ret = {};
- if (typeof args[1] === 'object') ret = args[1];
- if (isString(args[1])) ret.defaultValue = args[1];
- if (isString(args[2])) ret.tDescription = args[2];
- if (typeof args[2] === 'object' || typeof args[3] === 'object') {
- const options = args[3] || args[2];
- Object.keys(options).forEach(key => {
- ret[key] = options[key];
- });
- }
- return ret;
- },
- interpolation: {
- escapeValue: true,
- format: value => value,
- prefix: '{{',
- suffix: '}}',
- formatSeparator: ',',
- unescapePrefix: '-',
- nestingPrefix: '$t(',
- nestingSuffix: ')',
- nestingOptionsSeparator: ',',
- maxReplaces: 1000,
- skipOnVariables: true
- },
- cacheInBuiltFormats: true
- });
- const transformOptions = options => {
- if (isString(options.ns)) options.ns = [options.ns];
- if (isString(options.fallbackLng)) options.fallbackLng = [options.fallbackLng];
- if (isString(options.fallbackNS)) options.fallbackNS = [options.fallbackNS];
- if (options.supportedLngs?.indexOf?.('cimode') < 0) {
- options.supportedLngs = options.supportedLngs.concat(['cimode']);
- }
- if (typeof options.initImmediate === 'boolean') options.initAsync = options.initImmediate;
- return options;
- };
- const noop = () => {};
- const bindMemberFunctions = inst => {
- const mems = Object.getOwnPropertyNames(Object.getPrototypeOf(inst));
- mems.forEach(mem => {
- if (typeof inst[mem] === 'function') {
- inst[mem] = inst[mem].bind(inst);
- }
- });
- };
- class I18n extends EventEmitter {
- constructor(options = {}, callback) {
- super();
- this.options = transformOptions(options);
- this.services = {};
- this.logger = baseLogger;
- this.modules = {
- external: []
- };
- bindMemberFunctions(this);
- if (callback && !this.isInitialized && !options.isClone) {
- if (!this.options.initAsync) {
- this.init(options, callback);
- return this;
- }
- setTimeout(() => {
- this.init(options, callback);
- }, 0);
- }
- }
- init(options = {}, callback) {
- this.isInitializing = true;
- if (typeof options === 'function') {
- callback = options;
- options = {};
- }
- if (options.defaultNS == null && options.ns) {
- if (isString(options.ns)) {
- options.defaultNS = options.ns;
- } else if (options.ns.indexOf('translation') < 0) {
- options.defaultNS = options.ns[0];
- }
- }
- const defOpts = get();
- this.options = {
- ...defOpts,
- ...this.options,
- ...transformOptions(options)
- };
- this.options.interpolation = {
- ...defOpts.interpolation,
- ...this.options.interpolation
- };
- if (options.keySeparator !== undefined) {
- this.options.userDefinedKeySeparator = options.keySeparator;
- }
- if (options.nsSeparator !== undefined) {
- this.options.userDefinedNsSeparator = options.nsSeparator;
- }
- const createClassOnDemand = ClassOrObject => {
- if (!ClassOrObject) return null;
- if (typeof ClassOrObject === 'function') return new ClassOrObject();
- return ClassOrObject;
- };
- if (!this.options.isClone) {
- if (this.modules.logger) {
- baseLogger.init(createClassOnDemand(this.modules.logger), this.options);
- } else {
- baseLogger.init(null, this.options);
- }
- let formatter;
- if (this.modules.formatter) {
- formatter = this.modules.formatter;
- } else {
- formatter = Formatter;
- }
- const lu = new LanguageUtil(this.options);
- this.store = new ResourceStore(this.options.resources, this.options);
- const s = this.services;
- s.logger = baseLogger;
- s.resourceStore = this.store;
- s.languageUtils = lu;
- s.pluralResolver = new PluralResolver(lu, {
- prepend: this.options.pluralSeparator,
- simplifyPluralSuffix: this.options.simplifyPluralSuffix
- });
- const usingLegacyFormatFunction = this.options.interpolation.format && this.options.interpolation.format !== defOpts.interpolation.format;
- if (usingLegacyFormatFunction) {
- this.logger.deprecate(`init: you are still using the legacy format function, please use the new approach: https://www.i18next.com/translation-function/formatting`);
- }
- if (formatter && (!this.options.interpolation.format || this.options.interpolation.format === defOpts.interpolation.format)) {
- s.formatter = createClassOnDemand(formatter);
- if (s.formatter.init) s.formatter.init(s, this.options);
- this.options.interpolation.format = s.formatter.format.bind(s.formatter);
- }
- s.interpolator = new Interpolator(this.options);
- s.utils = {
- hasLoadedNamespace: this.hasLoadedNamespace.bind(this)
- };
- s.backendConnector = new Connector(createClassOnDemand(this.modules.backend), s.resourceStore, s, this.options);
- s.backendConnector.on('*', (event, ...args) => {
- this.emit(event, ...args);
- });
- if (this.modules.languageDetector) {
- s.languageDetector = createClassOnDemand(this.modules.languageDetector);
- if (s.languageDetector.init) s.languageDetector.init(s, this.options.detection, this.options);
- }
- if (this.modules.i18nFormat) {
- s.i18nFormat = createClassOnDemand(this.modules.i18nFormat);
- if (s.i18nFormat.init) s.i18nFormat.init(this);
- }
- this.translator = new Translator(this.services, this.options);
- this.translator.on('*', (event, ...args) => {
- this.emit(event, ...args);
- });
- this.modules.external.forEach(m => {
- if (m.init) m.init(this);
- });
- }
- this.format = this.options.interpolation.format;
- if (!callback) callback = noop;
- if (this.options.fallbackLng && !this.services.languageDetector && !this.options.lng) {
- const codes = this.services.languageUtils.getFallbackCodes(this.options.fallbackLng);
- if (codes.length > 0 && codes[0] !== 'dev') this.options.lng = codes[0];
- }
- if (!this.services.languageDetector && !this.options.lng) {
- this.logger.warn('init: no languageDetector is used and no lng is defined');
- }
- const storeApi = ['getResource', 'hasResourceBundle', 'getResourceBundle', 'getDataByLanguage'];
- storeApi.forEach(fcName => {
- this[fcName] = (...args) => this.store[fcName](...args);
- });
- const storeApiChained = ['addResource', 'addResources', 'addResourceBundle', 'removeResourceBundle'];
- storeApiChained.forEach(fcName => {
- this[fcName] = (...args) => {
- this.store[fcName](...args);
- return this;
- };
- });
- const deferred = defer();
- const load = () => {
- const finish = (err, t) => {
- this.isInitializing = false;
- if (this.isInitialized && !this.initializedStoreOnce) this.logger.warn('init: i18next is already initialized. You should call init just once!');
- this.isInitialized = true;
- if (!this.options.isClone) this.logger.log('initialized', this.options);
- this.emit('initialized', this.options);
- deferred.resolve(t);
- callback(err, t);
- };
- if (this.languages && !this.isInitialized) return finish(null, this.t.bind(this));
- this.changeLanguage(this.options.lng, finish);
- };
- if (this.options.resources || !this.options.initAsync) {
- load();
- } else {
- setTimeout(load, 0);
- }
- return deferred;
- }
- loadResources(language, callback = noop) {
- let usedCallback = callback;
- const usedLng = isString(language) ? language : this.language;
- if (typeof language === 'function') usedCallback = language;
- if (!this.options.resources || this.options.partialBundledLanguages) {
- if (usedLng?.toLowerCase() === 'cimode' && (!this.options.preload || this.options.preload.length === 0)) return usedCallback();
- const toLoad = [];
- const append = lng => {
- if (!lng) return;
- if (lng === 'cimode') return;
- const lngs = this.services.languageUtils.toResolveHierarchy(lng);
- lngs.forEach(l => {
- if (l === 'cimode') return;
- if (toLoad.indexOf(l) < 0) toLoad.push(l);
- });
- };
- if (!usedLng) {
- const fallbacks = this.services.languageUtils.getFallbackCodes(this.options.fallbackLng);
- fallbacks.forEach(l => append(l));
- } else {
- append(usedLng);
- }
- this.options.preload?.forEach?.(l => append(l));
- this.services.backendConnector.load(toLoad, this.options.ns, e => {
- if (!e && !this.resolvedLanguage && this.language) this.setResolvedLanguage(this.language);
- usedCallback(e);
- });
- } else {
- usedCallback(null);
- }
- }
- reloadResources(lngs, ns, callback) {
- const deferred = defer();
- if (typeof lngs === 'function') {
- callback = lngs;
- lngs = undefined;
- }
- if (typeof ns === 'function') {
- callback = ns;
- ns = undefined;
- }
- if (!lngs) lngs = this.languages;
- if (!ns) ns = this.options.ns;
- if (!callback) callback = noop;
- this.services.backendConnector.reload(lngs, ns, err => {
- deferred.resolve();
- callback(err);
- });
- return deferred;
- }
- use(module) {
- if (!module) throw new Error('You are passing an undefined module! Please check the object you are passing to i18next.use()');
- if (!module.type) throw new Error('You are passing a wrong module! Please check the object you are passing to i18next.use()');
- if (module.type === 'backend') {
- this.modules.backend = module;
- }
- if (module.type === 'logger' || module.log && module.warn && module.error) {
- this.modules.logger = module;
- }
- if (module.type === 'languageDetector') {
- this.modules.languageDetector = module;
- }
- if (module.type === 'i18nFormat') {
- this.modules.i18nFormat = module;
- }
- if (module.type === 'postProcessor') {
- postProcessor.addPostProcessor(module);
- }
- if (module.type === 'formatter') {
- this.modules.formatter = module;
- }
- if (module.type === '3rdParty') {
- this.modules.external.push(module);
- }
- return this;
- }
- setResolvedLanguage(l) {
- if (!l || !this.languages) return;
- if (['cimode', 'dev'].indexOf(l) > -1) return;
- for (let li = 0; li < this.languages.length; li++) {
- const lngInLngs = this.languages[li];
- if (['cimode', 'dev'].indexOf(lngInLngs) > -1) continue;
- if (this.store.hasLanguageSomeTranslations(lngInLngs)) {
- this.resolvedLanguage = lngInLngs;
- break;
- }
- }
- if (!this.resolvedLanguage && this.languages.indexOf(l) < 0 && this.store.hasLanguageSomeTranslations(l)) {
- this.resolvedLanguage = l;
- this.languages.unshift(l);
- }
- }
- changeLanguage(lng, callback) {
- this.isLanguageChangingTo = lng;
- const deferred = defer();
- this.emit('languageChanging', lng);
- const setLngProps = l => {
- this.language = l;
- this.languages = this.services.languageUtils.toResolveHierarchy(l);
- this.resolvedLanguage = undefined;
- this.setResolvedLanguage(l);
- };
- const done = (err, l) => {
- if (l) {
- if (this.isLanguageChangingTo === lng) {
- setLngProps(l);
- this.translator.changeLanguage(l);
- this.isLanguageChangingTo = undefined;
- this.emit('languageChanged', l);
- this.logger.log('languageChanged', l);
- }
- } else {
- this.isLanguageChangingTo = undefined;
- }
- deferred.resolve((...args) => this.t(...args));
- if (callback) callback(err, (...args) => this.t(...args));
- };
- const setLng = lngs => {
- if (!lng && !lngs && this.services.languageDetector) lngs = [];
- const fl = isString(lngs) ? lngs : lngs && lngs[0];
- const l = this.store.hasLanguageSomeTranslations(fl) ? fl : this.services.languageUtils.getBestMatchFromCodes(isString(lngs) ? [lngs] : lngs);
- if (l) {
- if (!this.language) {
- setLngProps(l);
- }
- if (!this.translator.language) this.translator.changeLanguage(l);
- this.services.languageDetector?.cacheUserLanguage?.(l);
- }
- this.loadResources(l, err => {
- done(err, l);
- });
- };
- if (!lng && this.services.languageDetector && !this.services.languageDetector.async) {
- setLng(this.services.languageDetector.detect());
- } else if (!lng && this.services.languageDetector && this.services.languageDetector.async) {
- if (this.services.languageDetector.detect.length === 0) {
- this.services.languageDetector.detect().then(setLng);
- } else {
- this.services.languageDetector.detect(setLng);
- }
- } else {
- setLng(lng);
- }
- return deferred;
- }
- getFixedT(lng, ns, keyPrefix) {
- const fixedT = (key, opts, ...rest) => {
- let o;
- if (typeof opts !== 'object') {
- o = this.options.overloadTranslationOptionHandler([key, opts].concat(rest));
- } else {
- o = {
- ...opts
- };
- }
- o.lng = o.lng || fixedT.lng;
- o.lngs = o.lngs || fixedT.lngs;
- o.ns = o.ns || fixedT.ns;
- if (o.keyPrefix !== '') o.keyPrefix = o.keyPrefix || keyPrefix || fixedT.keyPrefix;
- const keySeparator = this.options.keySeparator || '.';
- let resultKey;
- if (o.keyPrefix && Array.isArray(key)) {
- resultKey = key.map(k => {
- if (typeof k === 'function') k = keysFromSelector(k, {
- ...this.options,
- ...opts
- });
- return `${o.keyPrefix}${keySeparator}${k}`;
- });
- } else {
- if (typeof key === 'function') key = keysFromSelector(key, {
- ...this.options,
- ...opts
- });
- resultKey = o.keyPrefix ? `${o.keyPrefix}${keySeparator}${key}` : key;
- }
- return this.t(resultKey, o);
- };
- if (isString(lng)) {
- fixedT.lng = lng;
- } else {
- fixedT.lngs = lng;
- }
- fixedT.ns = ns;
- fixedT.keyPrefix = keyPrefix;
- return fixedT;
- }
- t(...args) {
- return this.translator?.translate(...args);
- }
- exists(...args) {
- return this.translator?.exists(...args);
- }
- setDefaultNamespace(ns) {
- this.options.defaultNS = ns;
- }
- hasLoadedNamespace(ns, options = {}) {
- if (!this.isInitialized) {
- this.logger.warn('hasLoadedNamespace: i18next was not initialized', this.languages);
- return false;
- }
- if (!this.languages || !this.languages.length) {
- this.logger.warn('hasLoadedNamespace: i18n.languages were undefined or empty', this.languages);
- return false;
- }
- const lng = options.lng || this.resolvedLanguage || this.languages[0];
- const fallbackLng = this.options ? this.options.fallbackLng : false;
- const lastLng = this.languages[this.languages.length - 1];
- if (lng.toLowerCase() === 'cimode') return true;
- const loadNotPending = (l, n) => {
- const loadState = this.services.backendConnector.state[`${l}|${n}`];
- return loadState === -1 || loadState === 0 || loadState === 2;
- };
- if (options.precheck) {
- const preResult = options.precheck(this, loadNotPending);
- if (preResult !== undefined) return preResult;
- }
- if (this.hasResourceBundle(lng, ns)) return true;
- if (!this.services.backendConnector.backend || this.options.resources && !this.options.partialBundledLanguages) return true;
- if (loadNotPending(lng, ns) && (!fallbackLng || loadNotPending(lastLng, ns))) return true;
- return false;
- }
- loadNamespaces(ns, callback) {
- const deferred = defer();
- if (!this.options.ns) {
- if (callback) callback();
- return Promise.resolve();
- }
- if (isString(ns)) ns = [ns];
- ns.forEach(n => {
- if (this.options.ns.indexOf(n) < 0) this.options.ns.push(n);
- });
- this.loadResources(err => {
- deferred.resolve();
- if (callback) callback(err);
- });
- return deferred;
- }
- loadLanguages(lngs, callback) {
- const deferred = defer();
- if (isString(lngs)) lngs = [lngs];
- const preloaded = this.options.preload || [];
- const newLngs = lngs.filter(lng => preloaded.indexOf(lng) < 0 && this.services.languageUtils.isSupportedCode(lng));
- if (!newLngs.length) {
- if (callback) callback();
- return Promise.resolve();
- }
- this.options.preload = preloaded.concat(newLngs);
- this.loadResources(err => {
- deferred.resolve();
- if (callback) callback(err);
- });
- return deferred;
- }
- dir(lng) {
- if (!lng) lng = this.resolvedLanguage || (this.languages?.length > 0 ? this.languages[0] : this.language);
- if (!lng) return 'rtl';
- try {
- const l = new Intl.Locale(lng);
- if (l && l.getTextInfo) {
- const ti = l.getTextInfo();
- if (ti && ti.direction) return ti.direction;
- }
- } catch (e) {}
- const rtlLngs = ['ar', 'shu', 'sqr', 'ssh', 'xaa', 'yhd', 'yud', 'aao', 'abh', 'abv', 'acm', 'acq', 'acw', 'acx', 'acy', 'adf', 'ads', 'aeb', 'aec', 'afb', 'ajp', 'apc', 'apd', 'arb', 'arq', 'ars', 'ary', 'arz', 'auz', 'avl', 'ayh', 'ayl', 'ayn', 'ayp', 'bbz', 'pga', 'he', 'iw', 'ps', 'pbt', 'pbu', 'pst', 'prp', 'prd', 'ug', 'ur', 'ydd', 'yds', 'yih', 'ji', 'yi', 'hbo', 'men', 'xmn', 'fa', 'jpr', 'peo', 'pes', 'prs', 'dv', 'sam', 'ckb'];
- const languageUtils = this.services?.languageUtils || new LanguageUtil(get());
- if (lng.toLowerCase().indexOf('-latn') > 1) return 'ltr';
- return rtlLngs.indexOf(languageUtils.getLanguagePartFromCode(lng)) > -1 || lng.toLowerCase().indexOf('-arab') > 1 ? 'rtl' : 'ltr';
- }
- static createInstance(options = {}, callback) {
- const instance = new I18n(options, callback);
- instance.createInstance = I18n.createInstance;
- return instance;
- }
- cloneInstance(options = {}, callback = noop) {
- const forkResourceStore = options.forkResourceStore;
- if (forkResourceStore) delete options.forkResourceStore;
- const mergedOptions = {
- ...this.options,
- ...options,
- ...{
- isClone: true
- }
- };
- const clone = new I18n(mergedOptions);
- if (options.debug !== undefined || options.prefix !== undefined) {
- clone.logger = clone.logger.clone(options);
- }
- const membersToCopy = ['store', 'services', 'language'];
- membersToCopy.forEach(m => {
- clone[m] = this[m];
- });
- clone.services = {
- ...this.services
- };
- clone.services.utils = {
- hasLoadedNamespace: clone.hasLoadedNamespace.bind(clone)
- };
- if (forkResourceStore) {
- const clonedData = Object.keys(this.store.data).reduce((prev, l) => {
- prev[l] = {
- ...this.store.data[l]
- };
- prev[l] = Object.keys(prev[l]).reduce((acc, n) => {
- acc[n] = {
- ...prev[l][n]
- };
- return acc;
- }, prev[l]);
- return prev;
- }, {});
- clone.store = new ResourceStore(clonedData, mergedOptions);
- clone.services.resourceStore = clone.store;
- }
- if (options.interpolation) clone.services.interpolator = new Interpolator(mergedOptions);
- clone.translator = new Translator(clone.services, mergedOptions);
- clone.translator.on('*', (event, ...args) => {
- clone.emit(event, ...args);
- });
- clone.init(mergedOptions, callback);
- clone.translator.options = mergedOptions;
- clone.translator.backendConnector.services.utils = {
- hasLoadedNamespace: clone.hasLoadedNamespace.bind(clone)
- };
- return clone;
- }
- toJSON() {
- return {
- options: this.options,
- store: this.store,
- language: this.language,
- languages: this.languages,
- resolvedLanguage: this.resolvedLanguage
- };
- }
- }
- const instance = I18n.createInstance();
- instance.keyFromSelector = keysFromSelector;
- return instance;
- }));
|