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(function (global, factory) {
typeof exports === 'object' && typeof module !== 'undefined' ? module.exports = factory() :
typeof define === 'function' && define.amd ? define(factory) :
(global.i18next = factory());
}(this, (function () { 'use strict';
var _typeof = typeof Symbol === "function" && typeof Symbol.iterator === "symbol" ? function (obj) {
return typeof obj;
} : function (obj) {
return obj && typeof Symbol === "function" && obj.constructor === Symbol && obj !== Symbol.prototype ? "symbol" : typeof obj;
};
var asyncGenerator = function () {
function AwaitValue(value) {
this.value = value;
}
function AsyncGenerator(gen) {
var front, back;
function send(key, arg) {
return new Promise(function (resolve, reject) {
var request = {
key: key,
arg: arg,
resolve: resolve,
reject: reject,
next: null
};
if (back) {
back = back.next = request;
} else {
front = back = request;
resume(key, arg);
}
});
}
function resume(key, arg) {
try {
var result = gen[key](arg);
var value = result.value;
if (value instanceof AwaitValue) {
Promise.resolve(value.value).then(function (arg) {
resume("next", arg);
}, function (arg) {
resume("throw", arg);
});
} else {
settle(result.done ? "return" : "normal", result.value);
}
} catch (err) {
settle("throw", err);
}
}
function settle(type, value) {
switch (type) {
case "return":
front.resolve({
value: value,
done: true
});
break;
case "throw":
front.reject(value);
break;
default:
front.resolve({
value: value,
done: false
});
break;
}
front = front.next;
if (front) {
resume(front.key, front.arg);
} else {
back = null;
}
}
this._invoke = send;
if (typeof gen.return !== "function") {
this.return = undefined;
}
}
if (typeof Symbol === "function" && Symbol.asyncIterator) {
AsyncGenerator.prototype[Symbol.asyncIterator] = function () {
return this;
};
}
AsyncGenerator.prototype.next = function (arg) {
return this._invoke("next", arg);
};
AsyncGenerator.prototype.throw = function (arg) {
return this._invoke("throw", arg);
};
AsyncGenerator.prototype.return = function (arg) {
return this._invoke("return", arg);
};
return {
wrap: function (fn) {
return function () {
return new AsyncGenerator(fn.apply(this, arguments));
};
},
await: function (value) {
return new AwaitValue(value);
}
};
}();
var classCallCheck = function (instance, Constructor) {
if (!(instance instanceof Constructor)) {
throw new TypeError("Cannot call a class as a function");
}
};
var _extends = Object.assign || function (target) {
for (var i = 1; i < arguments.length; i++) {
var source = arguments[i];
for (var key in source) {
if (Object.prototype.hasOwnProperty.call(source, key)) {
target[key] = source[key];
}
}
}
return target;
};
var get = function get(object, property, receiver) {
if (object === null) object = Function.prototype;
var desc = Object.getOwnPropertyDescriptor(object, property);
if (desc === undefined) {
var parent = Object.getPrototypeOf(object);
if (parent === null) {
return undefined;
} else {
return get(parent, property, receiver);
}
} else if ("value" in desc) {
return desc.value;
} else {
var getter = desc.get;
if (getter === undefined) {
return undefined;
}
return getter.call(receiver);
}
};
var inherits = function (subClass, superClass) {
if (typeof superClass !== "function" && superClass !== null) {
throw new TypeError("Super expression must either be null or a function, not " + typeof superClass);
}
subClass.prototype = Object.create(superClass && superClass.prototype, {
constructor: {
value: subClass,
enumerable: false,
writable: true,
configurable: true
}
});
if (superClass) Object.setPrototypeOf ? Object.setPrototypeOf(subClass, superClass) : subClass.__proto__ = superClass;
};
var possibleConstructorReturn = function (self, call) {
if (!self) {
throw new ReferenceError("this hasn't been initialised - super() hasn't been called");
}
return call && (typeof call === "object" || typeof call === "function") ? call : self;
};
var set = function set(object, property, value, receiver) {
var desc = Object.getOwnPropertyDescriptor(object, property);
if (desc === undefined) {
var parent = Object.getPrototypeOf(object);
if (parent !== null) {
set(parent, property, value, receiver);
}
} else if ("value" in desc && desc.writable) {
desc.value = value;
} else {
var setter = desc.set;
if (setter !== undefined) {
setter.call(receiver, value);
}
}
return value;
};
var slicedToArray = function () {
function sliceIterator(arr, i) {
var _arr = [];
var _n = true;
var _d = false;
var _e = undefined;
try {
for (var _i = arr[Symbol.iterator](), _s; !(_n = (_s = _i.next()).done); _n = true) {
_arr.push(_s.value);
if (i && _arr.length === i) break;
}
} catch (err) {
_d = true;
_e = err;
} finally {
try {
if (!_n && _i["return"]) _i["return"]();
} finally {
if (_d) throw _e;
}
}
return _arr;
}
return function (arr, i) {
if (Array.isArray(arr)) {
return arr;
} else if (Symbol.iterator in Object(arr)) {
return sliceIterator(arr, i);
} else {
throw new TypeError("Invalid attempt to destructure non-iterable instance");
}
};
}();
var consoleLogger = {
type: 'logger',
log: function log(args) {
this._output('log', args);
},
warn: function warn(args) {
this._output('warn', args);
},
error: function error(args) {
this._output('error', args);
},
_output: function _output(type, args) {
if (console && console[type]) console[type].apply(console, Array.prototype.slice.call(args));
}
};
var Logger = function () {
function Logger(concreteLogger) {
var options = arguments.length > 1 && arguments[1] !== undefined ? arguments[1] : {};
classCallCheck(this, Logger);
this.init(concreteLogger, options);
}
Logger.prototype.init = function init(concreteLogger) {
var options = arguments.length > 1 && arguments[1] !== undefined ? arguments[1] : {};
this.prefix = options.prefix || 'i18next:';
this.logger = concreteLogger || consoleLogger;
this.options = options;
this.debug = options.debug === false ? false : true;
};
Logger.prototype.setDebug = function setDebug(bool) {
this.debug = bool;
};
Logger.prototype.log = function log() {
this.forward(arguments, 'log', '', true);
};
Logger.prototype.warn = function warn() {
this.forward(arguments, 'warn', '', true);
};
Logger.prototype.error = function error() {
this.forward(arguments, 'error', '');
};
Logger.prototype.deprecate = function deprecate() {
this.forward(arguments, 'warn', 'WARNING DEPRECATED: ', true);
};
Logger.prototype.forward = function forward(args, lvl, prefix, debugOnly) {
if (debugOnly && !this.debug) return;
if (typeof args[0] === 'string') args[0] = prefix + this.prefix + ' ' + args[0];
this.logger[lvl](args);
};
Logger.prototype.create = function create(moduleName) {
var sub = new Logger(this.logger, _extends({ prefix: this.prefix + ':' + moduleName + ':' }, this.options));
return sub;
};
// createInstance(options = {}) {
// return new Logger(options, callback);
// }
return Logger;
}();
var baseLogger = new Logger();
var EventEmitter = function () {
function EventEmitter() {
classCallCheck(this, EventEmitter);
this.observers = {};
}
EventEmitter.prototype.on = function on(events, listener) {
var _this = this;
events.split(' ').forEach(function (event) {
_this.observers[event] = _this.observers[event] || [];
_this.observers[event].push(listener);
});
};
EventEmitter.prototype.off = function off(event, listener) {
var _this2 = this;
if (!this.observers[event]) {
return;
}
this.observers[event].forEach(function () {
if (!listener) {
delete _this2.observers[event];
} else {
var index = _this2.observers[event].indexOf(listener);
if (index > -1) {
_this2.observers[event].splice(index, 1);
}
}
});
};
EventEmitter.prototype.emit = function emit(event) {
for (var _len = arguments.length, args = Array(_len > 1 ? _len - 1 : 0), _key = 1; _key < _len; _key++) {
args[_key - 1] = arguments[_key];
}
if (this.observers[event]) {
this.observers[event].forEach(function (observer) {
observer.apply(undefined, args);
});
}
if (this.observers['*']) {
this.observers['*'].forEach(function (observer) {
var _ref;
observer.apply(observer, (_ref = [event]).concat.apply(_ref, args));
});
}
};
return EventEmitter;
}();
function makeString(object) {
if (object == null) return '';
return '' + object;
}
function copy(a, s, t) {
a.forEach(function (m) {
if (s[m]) t[m] = s[m];
});
}
function getLastOfPath(object, path, Empty) {
function cleanKey(key) {
return key && key.indexOf('###') > -1 ? key.replace(/###/g, '.') : key;
}
var stack = typeof path !== 'string' ? [].concat(path) : path.split('.');
while (stack.length > 1) {
if (!object) return {};
var key = cleanKey(stack.shift());
if (!object[key] && Empty) object[key] = new Empty();
object = object[key];
}
if (!object) return {};
return {
obj: object,
k: cleanKey(stack.shift())
};
}
function setPath(object, path, newValue) {
var _getLastOfPath = getLastOfPath(object, path, Object),
obj = _getLastOfPath.obj,
k = _getLastOfPath.k;
obj[k] = newValue;
}
function pushPath(object, path, newValue, concat) {
var _getLastOfPath2 = getLastOfPath(object, path, Object),
obj = _getLastOfPath2.obj,
k = _getLastOfPath2.k;
obj[k] = obj[k] || [];
if (concat) obj[k] = obj[k].concat(newValue);
if (!concat) obj[k].push(newValue);
}
function getPath(object, path) {
var _getLastOfPath3 = getLastOfPath(object, path),
obj = _getLastOfPath3.obj,
k = _getLastOfPath3.k;
if (!obj) return undefined;
return obj[k];
}
function deepExtend(target, source, overwrite) {
for (var prop in source) {
if (prop in target) {
// If we reached a leaf string in target or source then replace with source or skip depending on the 'overwrite' switch
if (typeof target[prop] === 'string' || target[prop] instanceof String || typeof source[prop] === 'string' || source[prop] instanceof String) {
if (overwrite) target[prop] = source[prop];
} else {
deepExtend(target[prop], source[prop], overwrite);
}
} else {
target[prop] = source[prop];
}
}return target;
}
function regexEscape(str) {
return str.replace(/[\-\[\]\/\{\}\(\)\*\+\?\.\\\^\$\|]/g, '\\$&');
}
/* eslint-disable */
var _entityMap = {
"&": "&amp;",
"<": "&lt;",
">": "&gt;",
'"': '&quot;',
"'": '&#39;',
"/": '&#x2F;'
};
/* eslint-enable */
function escape(data) {
if (typeof data === 'string') {
return data.replace(/[&<>"'\/]/g, function (s) {
return _entityMap[s];
});
} else {
return data;
}
}
var ResourceStore = function (_EventEmitter) {
inherits(ResourceStore, _EventEmitter);
function ResourceStore() {
var data = arguments.length > 0 && arguments[0] !== undefined ? arguments[0] : {};
var options = arguments.length > 1 && arguments[1] !== undefined ? arguments[1] : { ns: ['translation'], defaultNS: 'translation' };
classCallCheck(this, ResourceStore);
var _this = possibleConstructorReturn(this, _EventEmitter.call(this));
_this.data = data;
_this.options = options;
return _this;
}
ResourceStore.prototype.addNamespaces = function addNamespaces(ns) {
if (this.options.ns.indexOf(ns) < 0) {
this.options.ns.push(ns);
}
};
ResourceStore.prototype.removeNamespaces = function removeNamespaces(ns) {
var index = this.options.ns.indexOf(ns);
if (index > -1) {
this.options.ns.splice(index, 1);
}
};
ResourceStore.prototype.getResource = function getResource(lng, ns, key) {
var options = arguments.length > 3 && arguments[3] !== undefined ? arguments[3] : {};
var keySeparator = options.keySeparator || this.options.keySeparator;
if (keySeparator === undefined) keySeparator = '.';
var path = [lng, ns];
if (key && typeof key !== 'string') path = path.concat(key);
if (key && typeof key === 'string') path = path.concat(keySeparator ? key.split(keySeparator) : key);
if (lng.indexOf('.') > -1) {
path = lng.split('.');
}
return getPath(this.data, path);
};
ResourceStore.prototype.addResource = function addResource(lng, ns, key, value) {
var options = arguments.length > 4 && arguments[4] !== undefined ? arguments[4] : { silent: false };
var keySeparator = this.options.keySeparator;
if (keySeparator === undefined) keySeparator = '.';
var 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);
};
ResourceStore.prototype.addResources = function addResources(lng, ns, resources) {
for (var m in resources) {
if (typeof resources[m] === 'string') this.addResource(lng, ns, m, resources[m], { silent: true });
}
this.emit('added', lng, ns, resources);
};
ResourceStore.prototype.addResourceBundle = function addResourceBundle(lng, ns, resources, deep, overwrite) {
var path = [lng, ns];
if (lng.indexOf('.') > -1) {
path = lng.split('.');
deep = resources;
resources = ns;
ns = path[1];
}
this.addNamespaces(ns);
var pack = getPath(this.data, path) || {};
if (deep) {
deepExtend(pack, resources, overwrite);
} else {
pack = _extends({}, pack, resources);
}
setPath(this.data, path, pack);
this.emit('added', lng, ns, resources);
};
ResourceStore.prototype.removeResourceBundle = function removeResourceBundle(lng, ns) {
if (this.hasResourceBundle(lng, ns)) {
delete this.data[lng][ns];
}
this.removeNamespaces(ns);
this.emit('removed', lng, ns);
};
ResourceStore.prototype.hasResourceBundle = function hasResourceBundle(lng, ns) {
return this.getResource(lng, ns) !== undefined;
};
ResourceStore.prototype.getResourceBundle = function getResourceBundle(lng, ns) {
if (!ns) ns = this.options.defaultNS;
// TODO: COMPATIBILITY remove extend in v2.1.0
if (this.options.compatibilityAPI === 'v1') return _extends({}, this.getResource(lng, ns));
return this.getResource(lng, ns);
};
ResourceStore.prototype.toJSON = function toJSON() {
return this.data;
};
return ResourceStore;
}(EventEmitter);
var postProcessor = {
processors: {},
addPostProcessor: function addPostProcessor(module) {
this.processors[module.name] = module;
},
handle: function handle(processors, value, key, options, translator) {
var _this = this;
processors.forEach(function (processor) {
if (_this.processors[processor]) value = _this.processors[processor].process(value, key, options, translator);
});
return value;
}
};
function convertInterpolation(options) {
options.interpolation = {
unescapeSuffix: 'HTML'
};
options.interpolation.prefix = options.interpolationPrefix || '__';
options.interpolation.suffix = options.interpolationSuffix || '__';
options.interpolation.escapeValue = options.escapeInterpolation || false;
options.interpolation.nestingPrefix = options.reusePrefix || '$t(';
options.interpolation.nestingSuffix = options.reuseSuffix || ')';
return options;
}
function convertAPIOptions(options) {
if (options.resStore) options.resources = options.resStore;
if (options.ns && options.ns.defaultNs) {
options.defaultNS = options.ns.defaultNs;
options.ns = options.ns.namespaces;
} else {
options.defaultNS = options.ns || 'translation';
}
if (options.fallbackToDefaultNS && options.defaultNS) options.fallbackNS = options.defaultNS;
options.saveMissing = options.sendMissing;
options.saveMissingTo = options.sendMissingTo || 'current';
options.returnNull = options.fallbackOnNull ? false : true;
options.returnEmptyString = options.fallbackOnEmpty ? false : true;
options.returnObjects = options.returnObjectTrees;
options.joinArrays = '\n';
options.returnedObjectHandler = options.objectTreeKeyHandler;
options.parseMissingKeyHandler = options.parseMissingKey;
options.appendNamespaceToMissingKey = true;
options.nsSeparator = options.nsseparator;
options.keySeparator = options.keyseparator;
if (options.shortcutFunction === 'sprintf') {
options.overloadTranslationOptionHandler = function (args) {
var values = [];
for (var i = 1; i < args.length; i++) {
values.push(args[i]);
}
return {
postProcess: 'sprintf',
sprintf: values
};
};
}
options.whitelist = options.lngWhitelist;
options.preload = options.preload;
if (options.load === 'current') options.load = 'currentOnly';
if (options.load === 'unspecific') options.load = 'languageOnly';
// backend
options.backend = options.backend || {};
options.backend.loadPath = options.resGetPath || 'locales/__lng__/__ns__.json';
options.backend.addPath = options.resPostPath || 'locales/add/__lng__/__ns__';
options.backend.allowMultiLoading = options.dynamicLoad;
// cache
options.cache = options.cache || {};
options.cache.prefix = 'res_';
options.cache.expirationTime = 7 * 24 * 60 * 60 * 1000;
options.cache.enabled = options.useLocalStorage ? true : false;
options = convertInterpolation(options);
if (options.defaultVariables) options.interpolation.defaultVariables = options.defaultVariables;
// TODO: deprecation
// if (options.getAsync === false) throw deprecation error
return options;
}
function convertJSONOptions(options) {
options = convertInterpolation(options);
options.joinArrays = '\n';
return options;
}
function convertTOptions(options) {
if (options.interpolationPrefix || options.interpolationSuffix || options.escapeInterpolation) {
options = convertInterpolation(options);
}
options.nsSeparator = options.nsseparator;
options.keySeparator = options.keyseparator;
options.returnObjects = options.returnObjectTrees;
return options;
}
function appendBackwardsAPI(i18n) {
i18n.lng = function () {
baseLogger.deprecate('i18next.lng() can be replaced by i18next.language for detected language or i18next.languages for languages ordered by translation lookup.');
return i18n.services.languageUtils.toResolveHierarchy(i18n.language)[0];
};
i18n.preload = function (lngs, cb) {
baseLogger.deprecate('i18next.preload() can be replaced with i18next.loadLanguages()');
i18n.loadLanguages(lngs, cb);
};
i18n.setLng = function (lng, options, callback) {
baseLogger.deprecate('i18next.setLng() can be replaced with i18next.changeLanguage() or i18next.getFixedT() to get a translation function with fixed language or namespace.');
if (typeof options === 'function') {
callback = options;
options = {};
}
if (!options) options = {};
if (options.fixLng === true) {
if (callback) return callback(null, i18n.getFixedT(lng));
}
i18n.changeLanguage(lng, callback);
};
i18n.addPostProcessor = function (name, fc) {
baseLogger.deprecate('i18next.addPostProcessor() can be replaced by i18next.use({ type: \'postProcessor\', name: \'name\', process: fc })');
i18n.use({
type: 'postProcessor',
name: name,
process: fc
});
};
}
var Translator = function (_EventEmitter) {
inherits(Translator, _EventEmitter);
function Translator(services) {
var options = arguments.length > 1 && arguments[1] !== undefined ? arguments[1] : {};
classCallCheck(this, Translator);
var _this = possibleConstructorReturn(this, _EventEmitter.call(this));
copy(['resourceStore', 'languageUtils', 'pluralResolver', 'interpolator', 'backendConnector'], services, _this);
_this.options = options;
_this.logger = baseLogger.create('translator');
return _this;
}
Translator.prototype.changeLanguage = function changeLanguage(lng) {
if (lng) this.language = lng;
};
Translator.prototype.exists = function exists(key) {
var options = arguments.length > 1 && arguments[1] !== undefined ? arguments[1] : { interpolation: {} };
if (this.options.compatibilityAPI === 'v1') {
options = convertTOptions(options);
}
return this.resolve(key, options) !== undefined;
};
Translator.prototype.extractFromKey = function extractFromKey(key, options) {
var nsSeparator = options.nsSeparator || this.options.nsSeparator;
if (nsSeparator === undefined) nsSeparator = ':';
var namespaces = options.ns || this.options.defaultNS;
if (nsSeparator && key.indexOf(nsSeparator) > -1) {
var parts = key.split(nsSeparator);
namespaces = parts[0];
key = parts[1];
}
if (typeof namespaces === 'string') namespaces = [namespaces];
return {
key: key,
namespaces: namespaces
};
};
Translator.prototype.translate = function translate(keys) {
var options = arguments.length > 1 && arguments[1] !== undefined ? arguments[1] : {};
if ((typeof options === 'undefined' ? 'undefined' : _typeof(options)) !== 'object') {
options = this.options.overloadTranslationOptionHandler(arguments);
} else if (this.options.compatibilityAPI === 'v1') {
options = convertTOptions(options);
}
// non valid keys handling
if (keys === undefined || keys === null || keys === '') return '';
if (typeof keys === 'number') keys = String(keys);
if (typeof keys === 'string') keys = [keys];
// return key on CIMode
var lng = options.lng || this.language;
if (lng && lng.toLowerCase() === 'cimode') return keys[keys.length - 1];
// separators
var keySeparator = options.keySeparator || this.options.keySeparator || '.';
// get namespace(s)
var _extractFromKey = this.extractFromKey(keys[keys.length - 1], options),
key = _extractFromKey.key,
namespaces = _extractFromKey.namespaces;
var namespace = namespaces[namespaces.length - 1];
// resolve from store
var res = this.resolve(keys, options);
var resType = Object.prototype.toString.apply(res);
var noObject = ['[object Number]', '[object Function]', '[object RegExp]'];
var joinArrays = options.joinArrays !== undefined ? options.joinArrays : this.options.joinArrays;
// object
if (res && typeof res !== 'string' && noObject.indexOf(resType) < 0 && !(joinArrays && resType === '[object Array]')) {
if (!options.returnObjects && !this.options.returnObjects) {
this.logger.warn('accessing an object - but returnObjects options is not enabled!');
return this.options.returnedObjectHandler ? this.options.returnedObjectHandler(key, res, options) : 'key \'' + key + ' (' + this.language + ')\' returned an object instead of string.';
}
var copy$$1 = resType === '[object Array]' ? [] : {}; // apply child translation on a copy
for (var m in res) {
copy$$1[m] = this.translate('' + key + keySeparator + m, _extends({ joinArrays: false, ns: namespaces }, options));
}
res = copy$$1;
}
// array special treatment
else if (joinArrays && resType === '[object Array]') {
res = res.join(joinArrays);
if (res) res = this.extendTranslation(res, key, options);
}
// string, empty or null
else {
var usedDefault = false,
usedKey = false;
// fallback value
if (!this.isValidLookup(res) && options.defaultValue !== undefined) {
usedDefault = true;
res = options.defaultValue;
}
if (!this.isValidLookup(res)) {
usedKey = true;
res = key;
}
// save missing
if (usedKey || usedDefault) {
this.logger.log('missingKey', lng, namespace, key, res);
var lngs = [];
var fallbackLngs = this.languageUtils.getFallbackCodes(this.options.fallbackLng, options.lng || this.language);
if (this.options.saveMissingTo === 'fallback' && fallbackLngs && fallbackLngs[0]) {
for (var i = 0; i < fallbackLngs.length; i++) {
lngs.push(fallbackLngs[i]);
}
} else if (this.options.saveMissingTo === 'all') {
lngs = this.languageUtils.toResolveHierarchy(options.lng || this.language);
} else {
//(this.options.saveMissingTo === 'current' || (this.options.saveMissingTo === 'fallback' && this.options.fallbackLng[0] === false) ) {
lngs.push(options.lng || this.language);
}
if (this.options.saveMissing) {
if (this.options.missingKeyHandler) {
this.options.missingKeyHandler(lngs, namespace, key, res);
} else if (this.backendConnector && this.backendConnector.saveMissing) {
this.backendConnector.saveMissing(lngs, namespace, key, res);
}
}
this.emit('missingKey', lngs, namespace, key, res);
}
// extend
res = this.extendTranslation(res, key, options);
// append namespace if still key
if (usedKey && res === key && this.options.appendNamespaceToMissingKey) res = namespace + ':' + key;
// parseMissingKeyHandler
if (usedKey && this.options.parseMissingKeyHandler) res = this.options.parseMissingKeyHandler(res);
}
// return
return res;
};
Translator.prototype.extendTranslation = function extendTranslation(res, key, options) {
var _this2 = this;
if (options.interpolation) this.interpolator.init(_extends({}, options, { interpolation: _extends({}, this.options.interpolation, options.interpolation) }));
// interpolate
var data = options.replace && typeof options.replace !== 'string' ? options.replace : options;
if (this.options.interpolation.defaultVariables) data = _extends({}, this.options.interpolation.defaultVariables, data);
res = this.interpolator.interpolate(res, data, this.language);
// nesting
res = this.interpolator.nest(res, function () {
for (var _len = arguments.length, args = Array(_len), _key = 0; _key < _len; _key++) {
args[_key] = arguments[_key];
}
return _this2.translate.apply(_this2, args);
}, options);
if (options.interpolation) this.interpolator.reset();
// post process
var postProcess = options.postProcess || this.options.postProcess;
var postProcessorNames = typeof postProcess === 'string' ? [postProcess] : postProcess;
if (res !== undefined && postProcessorNames && postProcessorNames.length && options.applyPostProcessor !== false) {
res = postProcessor.handle(postProcessorNames, res, key, options, this);
}
return res;
};
Translator.prototype.resolve = function resolve(keys) {
var _this3 = this;
var options = arguments.length > 1 && arguments[1] !== undefined ? arguments[1] : {};
var found = void 0;
if (typeof keys === 'string') keys = [keys];
// forEach possible key
keys.forEach(function (k) {
if (_this3.isValidLookup(found)) return;
var _extractFromKey2 = _this3.extractFromKey(k, options),
key = _extractFromKey2.key,
namespaces = _extractFromKey2.namespaces;
if (_this3.options.fallbackNS) namespaces = namespaces.concat(_this3.options.fallbackNS);
var needsPluralHandling = options.count !== undefined && typeof options.count !== 'string';
var needsContextHandling = options.context !== undefined && typeof options.context === 'string' && options.context !== '';
var codes = options.lngs ? options.lngs : _this3.languageUtils.toResolveHierarchy(options.lng || _this3.language);
namespaces.forEach(function (ns) {
if (_this3.isValidLookup(found)) return;
codes.forEach(function (code) {
if (_this3.isValidLookup(found)) return;
var finalKey = key;
var finalKeys = [finalKey];
var pluralSuffix = void 0;
if (needsPluralHandling) pluralSuffix = _this3.pluralResolver.getSuffix(code, options.count);
// fallback for plural if context not found
if (needsPluralHandling && needsContextHandling) finalKeys.push(finalKey + pluralSuffix);
// get key for context if needed
if (needsContextHandling) finalKeys.push(finalKey += '' + _this3.options.contextSeparator + options.context);
// get key for plural if needed
if (needsPluralHandling) finalKeys.push(finalKey += pluralSuffix);
// iterate over finalKeys starting with most specific pluralkey (-> contextkey only) -> singularkey only
var possibleKey = void 0;
while (possibleKey = finalKeys.pop()) {
if (_this3.isValidLookup(found)) continue;
found = _this3.getResource(code, ns, possibleKey, options);
}
});
});
});
return found;
};
Translator.prototype.isValidLookup = function isValidLookup(res) {
return res !== undefined && !(!this.options.returnNull && res === null) && !(!this.options.returnEmptyString && res === '');
};
Translator.prototype.getResource = function getResource(code, ns, key) {
var options = arguments.length > 3 && arguments[3] !== undefined ? arguments[3] : {};
return this.resourceStore.getResource(code, ns, key, options);
};
return Translator;
}(EventEmitter);
function capitalize(string) {
return string.charAt(0).toUpperCase() + string.slice(1);
}
var LanguageUtil = function () {
function LanguageUtil(options) {
classCallCheck(this, LanguageUtil);
this.options = options;
this.whitelist = this.options.whitelist || false;
this.logger = baseLogger.create('languageUtils');
}
LanguageUtil.prototype.getLanguagePartFromCode = function getLanguagePartFromCode(code) {
if (code.indexOf('-') < 0) return code;
var specialCases = ['NB-NO', 'NN-NO', 'nb-NO', 'nn-NO', 'nb-no', 'nn-no'];
var p = code.split('-');
return this.formatLanguageCode(specialCases.indexOf(code) > -1 ? p[1].toLowerCase() : p[0]);
};
LanguageUtil.prototype.getScriptPartFromCode = function getScriptPartFromCode(code) {
if (code.indexOf('-') < 0) return null;
var p = code.split('-');
if (p.length === 2) return null;
p.pop();
return this.formatLanguageCode(p.join('-'));
};
LanguageUtil.prototype.getLanguagePartFromCode = function getLanguagePartFromCode(code) {
if (code.indexOf('-') < 0) return code;
var specialCases = ['NB-NO', 'NN-NO', 'nb-NO', 'nn-NO', 'nb-no', 'nn-no'];
var p = code.split('-');
return this.formatLanguageCode(specialCases.indexOf(code) > -1 ? p[1].toLowerCase() : p[0]);
};
LanguageUtil.prototype.formatLanguageCode = function formatLanguageCode(code) {
// http://www.iana.org/assignments/language-tags/language-tags.xhtml
if (typeof code === 'string' && code.indexOf('-') > -1) {
var specialCases = ['hans', 'hant', 'latn', 'cyrl', 'cans', 'mong', 'arab'];
var p = code.split('-');
if (this.options.lowerCaseLng) {
p = p.map(function (part) {
return part.toLowerCase();
});
} else if (p.length === 2) {
p[0] = p[0].toLowerCase();
p[1] = p[1].toUpperCase();
if (specialCases.indexOf(p[1].toLowerCase()) > -1) p[1] = capitalize(p[1].toLowerCase());
} else if (p.length === 3) {
p[0] = p[0].toLowerCase();
// if lenght 2 guess it's a country
if (p[1].length === 2) p[1] = p[1].toUpperCase();
if (p[0] !== 'sgn' && p[2].length === 2) p[2] = p[2].toUpperCase();
if (specialCases.indexOf(p[1].toLowerCase()) > -1) p[1] = capitalize(p[1].toLowerCase());
if (specialCases.indexOf(p[2].toLowerCase()) > -1) p[2] = capitalize(p[2].toLowerCase());
}
return p.join('-');
} else {
return this.options.cleanCode || this.options.lowerCaseLng ? code.toLowerCase() : code;
}
};
LanguageUtil.prototype.isWhitelisted = function isWhitelisted(code, exactMatch) {
if (this.options.load === 'languageOnly' || this.options.nonExplicitWhitelist && !exactMatch) {
code = this.getLanguagePartFromCode(code);
}
return !this.whitelist || !this.whitelist.length || this.whitelist.indexOf(code) > -1 ? true : false;
};
LanguageUtil.prototype.getFallbackCodes = function getFallbackCodes(fallbacks, code) {
if (!fallbacks) return [];
if (typeof fallbacks === 'string') fallbacks = [fallbacks];
if (Object.prototype.toString.apply(fallbacks) === '[object Array]') return fallbacks;
// asume we have an object defining fallbacks
var found = fallbacks[code];
if (!found) found = fallbacks[this.getScriptPartFromCode(code)];
if (!found) found = fallbacks[this.formatLanguageCode(code)];
if (!found) found = fallbacks.default;
return found || [];
};
LanguageUtil.prototype.toResolveHierarchy = function toResolveHierarchy(code, fallbackCode) {
var _this = this;
var fallbackCodes = this.getFallbackCodes(fallbackCode || this.options.fallbackLng || [], code);
var codes = [];
var addCode = function addCode(code) {
var exactMatch = arguments.length > 1 && arguments[1] !== undefined ? arguments[1] : false;
if (!code) return;
if (_this.isWhitelisted(code, exactMatch)) {
codes.push(code);
} else {
_this.logger.warn('rejecting non-whitelisted language code: ' + code);
}
};
if (typeof code === 'string' && code.indexOf('-') > -1) {
if (this.options.load !== 'languageOnly') addCode(this.formatLanguageCode(code), true);
if (this.options.load !== 'languageOnly' && this.options.load !== 'currentOnly') addCode(this.getScriptPartFromCode(code), true);
if (this.options.load !== 'currentOnly') addCode(this.getLanguagePartFromCode(code));
} else if (typeof code === 'string') {
addCode(this.formatLanguageCode(code));
}
fallbackCodes.forEach(function (fc) {
if (codes.indexOf(fc) < 0) addCode(_this.formatLanguageCode(fc));
});
return codes;
};
return LanguageUtil;
}();
// definition http://translate.sourceforge.net/wiki/l10n/pluralforms
/* eslint-disable */
var sets = [{ lngs: ['ach', 'ak', 'am', 'arn', 'br', 'fil', 'gun', 'ln', 'mfe', 'mg', 'mi', 'oc', 'tg', 'ti', 'tr', 'uz', 'wa'], nr: [1, 2], fc: 1 }, { lngs: ['af', 'an', 'ast', 'az', 'bg', 'bn', 'ca', 'da', 'de', 'dev', 'el', 'en', 'eo', 'es', 'es_ar', 'et', 'eu', 'fi', 'fo', 'fur', 'fy', 'gl', 'gu', 'ha', 'he', 'hi', 'hu', 'hy', 'ia', 'it', 'kn', 'ku', 'lb', 'mai', 'ml', 'mn', 'mr', 'nah', 'nap', 'nb', 'ne', 'nl', 'nn', 'no', 'nso', 'pa', 'pap', 'pms', 'ps', 'pt', 'pt_br', 'rm', 'sco', 'se', 'si', 'so', 'son', 'sq', 'sv', 'sw', 'ta', 'te', 'tk', 'ur', 'yo'], nr: [1, 2], fc: 2 }, { lngs: ['ay', 'bo', 'cgg', 'fa', 'id', 'ja', 'jbo', 'ka', 'kk', 'km', 'ko', 'ky', 'lo', 'ms', 'sah', 'su', 'th', 'tt', 'ug', 'vi', 'wo', 'zh'], nr: [1], fc: 3 }, { lngs: ['be', 'bs', 'dz', 'hr', 'ru', 'sr', 'uk'], nr: [1, 2, 5], fc: 4 }, { lngs: ['ar'], nr: [0, 1, 2, 3, 11, 100], fc: 5 }, { lngs: ['cs', 'sk'], nr: [1, 2, 5], fc: 6 }, { lngs: ['csb', 'pl'], nr: [1, 2, 5], fc: 7 }, { lngs: ['cy'], nr: [1, 2, 3, 8], fc: 8 }, { lngs: ['fr'], nr: [1, 2], fc: 9 }, { lngs: ['ga'], nr: [1, 2, 3, 7, 11], fc: 10 }, { lngs: ['gd'], nr: [1, 2, 3, 20], fc: 11 }, { lngs: ['is'], nr: [1, 2], fc: 12 }, { lngs: ['jv'], nr: [0, 1], fc: 13 }, { lngs: ['kw'], nr: [1, 2, 3, 4], fc: 14 }, { lngs: ['lt'], nr: [1, 2, 10], fc: 15 }, { lngs: ['lv'], nr: [1, 2, 0], fc: 16 }, { lngs: ['mk'], nr: [1, 2], fc: 17 }, { lngs: ['mnk'], nr: [0, 1, 2], fc: 18 }, { lngs: ['mt'], nr: [1, 2, 11, 20], fc: 19 }, { lngs: ['or'], nr: [2, 1], fc: 2 }, { lngs: ['ro'], nr: [1, 2, 20], fc: 20 }, { lngs: ['sl'], nr: [5, 1, 2, 3], fc: 21 }];
var _rulesPluralsTypes = {
1: function _(n) {
return Number(n > 1);
},
2: function _(n) {
return Number(n != 1);
},
3: function _(n) {
return 0;
},
4: function _(n) {
return Number(n % 10 == 1 && n % 100 != 11 ? 0 : n % 10 >= 2 && n % 10 <= 4 && (n % 100 < 10 || n % 100 >= 20) ? 1 : 2);
},
5: function _(n) {
return Number(n === 0 ? 0 : n == 1 ? 1 : n == 2 ? 2 : n % 100 >= 3 && n % 100 <= 10 ? 3 : n % 100 >= 11 ? 4 : 5);
},
6: function _(n) {
return Number(n == 1 ? 0 : n >= 2 && n <= 4 ? 1 : 2);
},
7: function _(n) {
return Number(n == 1 ? 0 : n % 10 >= 2 && n % 10 <= 4 && (n % 100 < 10 || n % 100 >= 20) ? 1 : 2);
},
8: function _(n) {
return Number(n == 1 ? 0 : n == 2 ? 1 : n != 8 && n != 11 ? 2 : 3);
},
9: function _(n) {
return Number(n >= 2);
},
10: function _(n) {
return Number(n == 1 ? 0 : n == 2 ? 1 : n < 7 ? 2 : n < 11 ? 3 : 4);
},
11: function _(n) {
return Number(n == 1 || n == 11 ? 0 : n == 2 || n == 12 ? 1 : n > 2 && n < 20 ? 2 : 3);
},
12: function _(n) {
return Number(n % 10 != 1 || n % 100 == 11);
},
13: function _(n) {
return Number(n !== 0);
},
14: function _(n) {
return Number(n == 1 ? 0 : n == 2 ? 1 : n == 3 ? 2 : 3);
},
15: function _(n) {
return Number(n % 10 == 1 && n % 100 != 11 ? 0 : n % 10 >= 2 && (n % 100 < 10 || n % 100 >= 20) ? 1 : 2);
},
16: function _(n) {
return Number(n % 10 == 1 && n % 100 != 11 ? 0 : n !== 0 ? 1 : 2);
},
17: function _(n) {
return Number(n == 1 || n % 10 == 1 ? 0 : 1);
},
18: function _(n) {
return Number(n == 0 ? 0 : n == 1 ? 1 : 2);
},
19: function _(n) {
return Number(n == 1 ? 0 : n === 0 || n % 100 > 1 && n % 100 < 11 ? 1 : n % 100 > 10 && n % 100 < 20 ? 2 : 3);
},
20: function _(n) {
return Number(n == 1 ? 0 : n === 0 || n % 100 > 0 && n % 100 < 20 ? 1 : 2);
},
21: function _(n) {
return Number(n % 100 == 1 ? 1 : n % 100 == 2 ? 2 : n % 100 == 3 || n % 100 == 4 ? 3 : 0);
}
};
/* eslint-enable */
function createRules() {
var l,
rules = {};
sets.forEach(function (set$$1) {
set$$1.lngs.forEach(function (l) {
return rules[l] = {
numbers: set$$1.nr,
plurals: _rulesPluralsTypes[set$$1.fc]
};
});
});
return rules;
}
var PluralResolver = function () {
function PluralResolver(languageUtils) {
var options = arguments.length > 1 && arguments[1] !== undefined ? arguments[1] : {};
classCallCheck(this, PluralResolver);
this.languageUtils = languageUtils;
this.options = options;
this.logger = baseLogger.create('pluralResolver');
this.rules = createRules();
}
PluralResolver.prototype.addRule = function addRule(lng, obj) {
this.rules[lng] = obj;
};
PluralResolver.prototype.getRule = function getRule(code) {
return this.rules[this.languageUtils.getLanguagePartFromCode(code)];
};
PluralResolver.prototype.needsPlural = function needsPlural(code) {
var rule = this.getRule(code);
return rule && rule.numbers.length <= 1 ? false : true;
};
PluralResolver.prototype.getSuffix = function getSuffix(code, count) {
var _this = this;
var rule = this.getRule(code);
if (rule) {
var _ret = function () {
if (rule.numbers.length === 1) return {
v: ''
}; // only singular
var idx = rule.noAbs ? rule.plurals(count) : rule.plurals(Math.abs(count));
var suffix = rule.numbers[idx];
// special treatment for lngs only having singular and plural
if (rule.numbers.length === 2 && rule.numbers[0] === 1) {
if (suffix === 2) {
suffix = 'plural';
} else if (suffix === 1) {
suffix = '';
}
}
var returnSuffix = function returnSuffix() {
return _this.options.prepend && suffix.toString() ? _this.options.prepend + suffix.toString() : suffix.toString();
};
// COMPATIBILITY JSON
// v1
if (_this.options.compatibilityJSON === 'v1') {
if (suffix === 1) return {
v: ''
};
if (typeof suffix === 'number') return {
v: '_plural_' + suffix.toString()
};
return {
v: returnSuffix()
};
}
// v2
else if (_this.options.compatibilityJSON === 'v2' || rule.numbers.length === 2 && rule.numbers[0] === 1) {
return {
v: returnSuffix()
};
}
// v3 - gettext index
else if (rule.numbers.length === 2 && rule.numbers[0] === 1) {
return {
v: returnSuffix()
};
}
return {
v: _this.options.prepend && idx.toString() ? _this.options.prepend + idx.toString() : idx.toString()
};
}();
if ((typeof _ret === 'undefined' ? 'undefined' : _typeof(_ret)) === "object") return _ret.v;
} else {
this.logger.warn('no plural rule found for: ' + code);
return '';
}
};
return PluralResolver;
}();
var Interpolator = function () {
function Interpolator() {
var options = arguments.length > 0 && arguments[0] !== undefined ? arguments[0] : {};
classCallCheck(this, Interpolator);
this.logger = baseLogger.create('interpolator');
this.init(options, true);
}
Interpolator.prototype.init = function init() {
var options = arguments.length > 0 && arguments[0] !== undefined ? arguments[0] : {};
var reset = arguments[1];
if (reset) {
this.options = options;
this.format = options.interpolation && options.interpolation.format || function (value) {
return value;
};
this.escape = options.interpolation && options.interpolation.escape || escape;
}
if (!options.interpolation) options.interpolation = { escapeValue: true };
var iOpts = options.interpolation;
this.escapeValue = iOpts.escapeValue !== undefined ? iOpts.escapeValue : true;
this.prefix = iOpts.prefix ? regexEscape(iOpts.prefix) : iOpts.prefixEscaped || '{{';
this.suffix = iOpts.suffix ? regexEscape(iOpts.suffix) : iOpts.suffixEscaped || '}}';
this.formatSeparator = iOpts.formatSeparator ? regexEscape(iOpts.formatSeparator) : iOpts.formatSeparator || ',';
this.unescapePrefix = iOpts.unescapeSuffix ? '' : iOpts.unescapePrefix || '-';
this.unescapeSuffix = this.unescapePrefix ? '' : iOpts.unescapeSuffix || '';
this.nestingPrefix = iOpts.nestingPrefix ? regexEscape(iOpts.nestingPrefix) : iOpts.nestingPrefixEscaped || regexEscape('$t(');
this.nestingSuffix = iOpts.nestingSuffix ? regexEscape(iOpts.nestingSuffix) : iOpts.nestingSuffixEscaped || regexEscape(')');
// the regexp
this.resetRegExp();
};
Interpolator.prototype.reset = function reset() {
if (this.options) this.init(this.options);
};
Interpolator.prototype.resetRegExp = function resetRegExp() {
// the regexp
var regexpStr = this.prefix + '(.+?)' + this.suffix;
this.regexp = new RegExp(regexpStr, 'g');
var regexpUnescapeStr = this.prefix + this.unescapePrefix + '(.+?)' + this.unescapeSuffix + this.suffix;
this.regexpUnescape = new RegExp(regexpUnescapeStr, 'g');
var nestingRegexpStr = this.nestingPrefix + '(.+?)' + this.nestingSuffix;
this.nestingRegexp = new RegExp(nestingRegexpStr, 'g');
};
Interpolator.prototype.interpolate = function interpolate(str, data, lng) {
var _this = this;
var match = void 0,
value = void 0;
function regexSafe(val) {
return val.replace(/\$/g, '$$$$');
}
var handleFormat = function handleFormat(key) {
if (key.indexOf(_this.formatSeparator) < 0) return getPath(data, key);
var p = key.split(_this.formatSeparator);
var k = p.shift().trim();
var f = p.join(_this.formatSeparator).trim();
return _this.format(getPath(data, k), f, lng);
};
this.resetRegExp();
// unescape if has unescapePrefix/Suffix
while (match = this.regexpUnescape.exec(str)) {
var _value = handleFormat(match[1].trim());
str = str.replace(match[0], _value);
this.regexpUnescape.lastIndex = 0;
}
// regular escape on demand
while (match = this.regexp.exec(str)) {
value = handleFormat(match[1].trim());
if (typeof value !== 'string') value = makeString(value);
if (!value) {
this.logger.warn('missed to pass in variable ' + match[1] + ' for interpolating ' + str);
value = '';
}
value = this.escapeValue ? regexSafe(this.escape(value)) : regexSafe(value);
str = str.replace(match[0], value);
this.regexp.lastIndex = 0;
}
return str;
};
Interpolator.prototype.nest = function nest(str, fc) {
var options = arguments.length > 2 && arguments[2] !== undefined ? arguments[2] : {};
var match = void 0,
value = void 0;
var clonedOptions = JSON.parse(JSON.stringify(options));
clonedOptions.applyPostProcessor = false; // avoid post processing on nested lookup
function regexSafe(val) {
return val.replace(/\$/g, '$$$$');
}
// if value is something like "myKey": "lorem $(anotherKey, { "count": {{aValueInOptions}} })"
function handleHasOptions(key) {
if (key.indexOf(',') < 0) return key;
var p = key.split(',');
key = p.shift();
var optionsString = p.join(',');
optionsString = this.interpolate(optionsString, clonedOptions);
optionsString = optionsString.replace(/'/g, '"');
try {
clonedOptions = JSON.parse(optionsString);
} catch (e) {
this.logger.error('failed parsing options string in nesting for key ' + key, e);
}
return key;
}
// regular escape on demand
while (match = this.nestingRegexp.exec(str)) {
value = fc(handleHasOptions.call(this, match[1].trim()), clonedOptions);
if (typeof value !== 'string') value = makeString(value);
if (!value) {
this.logger.warn('missed to pass in variable ' + match[1] + ' for interpolating ' + str);
value = '';
}
value = this.escapeValue ? regexSafe(escape(value)) : regexSafe(value);
str = str.replace(match[0], value);
this.regexp.lastIndex = 0;
}
return str;
};
return Interpolator;
}();
function remove(arr, what) {
var found = arr.indexOf(what);
while (found !== -1) {
arr.splice(found, 1);
found = arr.indexOf(what);
}
}
var Connector = function (_EventEmitter) {
inherits(Connector, _EventEmitter);
function Connector(backend, store, services) {
var options = arguments.length > 3 && arguments[3] !== undefined ? arguments[3] : {};
classCallCheck(this, Connector);
var _this = possibleConstructorReturn(this, _EventEmitter.call(this));
_this.backend = backend;
_this.store = store;
_this.services = services;
_this.options = options;
_this.logger = baseLogger.create('backendConnector');
_this.state = {};
_this.queue = [];
_this.backend && _this.backend.init && _this.backend.init(services, options.backend, options);
return _this;
}
Connector.prototype.queueLoad = function queueLoad(languages, namespaces, callback) {
var _this2 = this;
// find what needs to be loaded
var toLoad = [],
pending = [],
toLoadLanguages = [],
toLoadNamespaces = [];
languages.forEach(function (lng) {
var hasAllNamespaces = true;
namespaces.forEach(function (ns) {
var name = lng + '|' + ns;
if (_this2.store.hasResourceBundle(lng, ns)) {
_this2.state[name] = 2; // loaded
} else if (_this2.state[name] < 0) {
// nothing to do for err
} else if (_this2.state[name] === 1) {
if (pending.indexOf(name) < 0) pending.push(name);
} else {
_this2.state[name] = 1; // pending
hasAllNamespaces = false;
if (pending.indexOf(name) < 0) pending.push(name);
if (toLoad.indexOf(name) < 0) toLoad.push(name);
if (toLoadNamespaces.indexOf(ns) < 0) toLoadNamespaces.push(ns);
}
});
if (!hasAllNamespaces) toLoadLanguages.push(lng);
});
if (toLoad.length || pending.length) {
this.queue.push({
pending: pending,
loaded: {},
errors: [],
callback: callback
});
}
return {
toLoad: toLoad,
pending: pending,
toLoadLanguages: toLoadLanguages,
toLoadNamespaces: toLoadNamespaces
};
};
Connector.prototype.loaded = function loaded(name, err, data) {
var _this3 = this;
var _name$split = name.split('|'),
_name$split2 = slicedToArray(_name$split, 2),
lng = _name$split2[0],
ns = _name$split2[1];
if (err) this.emit('failedLoading', lng, ns, err);
if (data) {
this.store.addResourceBundle(lng, ns, data);
}
// set loaded
this.state[name] = err ? -1 : 2;
// callback if ready
this.queue.forEach(function (q) {
pushPath(q.loaded, [lng], ns);
remove(q.pending, name);
if (err) q.errors.push(err);
if (q.pending.length === 0 && !q.done) {
q.errors.length ? q.callback(q.errors) : q.callback();
_this3.emit('loaded', q.loaded);
q.done = true;
}
});
// remove done load requests
this.queue = this.queue.filter(function (q) {
return !q.done;
});
};
Connector.prototype.read = function read(lng, ns, fcName, tried, wait, callback) {
var _this4 = this;
if (!tried) tried = 0;
if (!wait) wait = 250;
if (!lng.length) return callback(null, {}); // noting to load
this.backend[fcName](lng, ns, function (err, data) {
if (err && data /* = retryFlag */ && tried < 5) {
setTimeout(function () {
_this4.read.call(_this4, lng, ns, fcName, ++tried, wait * 2, callback);
}, wait);
return;
}
callback(err, data);
});
};
Connector.prototype.load = function load(languages, namespaces, callback) {
var _this5 = this;
if (!this.backend) {
this.logger.warn('No backend was added via i18next.use. Will not load resources.');
return callback && callback();
}
var options = _extends({}, this.backend.options, this.options.backend);
if (typeof languages === 'string') languages = this.services.languageUtils.toResolveHierarchy(languages);
if (typeof namespaces === 'string') namespaces = [namespaces];
var toLoad = this.queueLoad(languages, namespaces, callback);
if (!toLoad.toLoad.length) {
if (!toLoad.pending.length) callback(); // nothing to load and no pendings...callback now
return; // pendings will trigger callback
}
// load with multi-load
if (options.allowMultiLoading && this.backend.readMulti) {
this.read(toLoad.toLoadLanguages, toLoad.toLoadNamespaces, 'readMulti', null, null, function (err, data) {
if (err) _this5.logger.warn('loading namespaces ' + toLoad.toLoadNamespaces.join(', ') + ' for languages ' + toLoad.toLoadLanguages.join(', ') + ' via multiloading failed', err);
if (!err && data) _this5.logger.log('loaded namespaces ' + toLoad.toLoadNamespaces.join(', ') + ' for languages ' + toLoad.toLoadLanguages.join(', ') + ' via multiloading', data);
toLoad.toLoad.forEach(function (name) {
var _name$split3 = name.split('|'),
_name$split4 = slicedToArray(_name$split3, 2),
l = _name$split4[0],
n = _name$split4[1];
var bundle = getPath(data, [l, n]);
if (bundle) {
_this5.loaded(name, err, bundle);
} else {
var _err = 'loading namespace ' + n + ' for language ' + l + ' via multiloading failed';
_this5.loaded(name, _err);
_this5.logger.error(_err);
}
});
});
}
// load one by one
else {
(function () {
var readOne = function readOne(name) {
var _this6 = this;
var _name$split5 = name.split('|'),
_name$split6 = slicedToArray(_name$split5, 2),
lng = _name$split6[0],
ns = _name$split6[1];
this.read(lng, ns, 'read', null, null, function (err, data) {
if (err) _this6.logger.warn('loading namespace ' + ns + ' for language ' + lng + ' failed', err);
if (!err && data) _this6.logger.log('loaded namespace ' + ns + ' for language ' + lng, data);
_this6.loaded(name, err, data);
});
};
toLoad.toLoad.forEach(function (name) {
readOne.call(_this5, name);
});
})();
}
};
Connector.prototype.reload = function reload(languages, namespaces) {
var _this7 = this;
if (!this.backend) {
this.logger.warn('No backend was added via i18next.use. Will not load resources.');
}
var options = _extends({}, this.backend.options, this.options.backend);
if (typeof languages === 'string') languages = this.services.languageUtils.toResolveHierarchy(languages);
if (typeof namespaces === 'string') namespaces = [namespaces];
// load with multi-load
if (options.allowMultiLoading && this.backend.readMulti) {
this.read(languages, namespaces, 'readMulti', null, null, function (err, data) {
if (err) _this7.logger.warn('reloading namespaces ' + namespaces.join(', ') + ' for languages ' + languages.join(', ') + ' via multiloading failed', err);
if (!err && data) _this7.logger.log('reloaded namespaces ' + namespaces.join(', ') + ' for languages ' + languages.join(', ') + ' via multiloading', data);
languages.forEach(function (l) {
namespaces.forEach(function (n) {
var bundle = getPath(data, [l, n]);
if (bundle) {
_this7.loaded(l + '|' + n, err, bundle);
} else {
var _err2 = 'reloading namespace ' + n + ' for language ' + l + ' via multiloading failed';
_this7.loaded(l + '|' + n, _err2);
_this7.logger.error(_err2);
}
});
});
});
}
// load one by one
else {
(function () {
var readOne = function readOne(name) {
var _this8 = this;
var _name$split7 = name.split('|'),
_name$split8 = slicedToArray(_name$split7, 2),
lng = _name$split8[0],
ns = _name$split8[1];
this.read(lng, ns, 'read', null, null, function (err, data) {
if (err) _this8.logger.warn('reloading namespace ' + ns + ' for language ' + lng + ' failed', err);
if (!err && data) _this8.logger.log('reloaded namespace ' + ns + ' for language ' + lng, data);
_this8.loaded(name, err, data);
});
};
languages.forEach(function (l) {
namespaces.forEach(function (n) {
readOne.call(_this7, l + '|' + n);
});
});
})();
}
};
Connector.prototype.saveMissing = function saveMissing(languages, namespace, key, fallbackValue) {
if (this.backend && this.backend.create) this.backend.create(languages, namespace, key, fallbackValue);
// write to store to avoid resending
if (!languages || !languages[0]) return;
this.store.addResource(languages[0], namespace, key, fallbackValue);
};
return Connector;
}(EventEmitter);
var Connector$1 = function (_EventEmitter) {
inherits(Connector, _EventEmitter);
function Connector(cache, store, services) {
var options = arguments.length > 3 && arguments[3] !== undefined ? arguments[3] : {};
classCallCheck(this, Connector);
var _this = possibleConstructorReturn(this, _EventEmitter.call(this));
_this.cache = cache;
_this.store = store;
_this.services = services;
_this.options = options;
_this.logger = baseLogger.create('cacheConnector');
_this.cache && _this.cache.init && _this.cache.init(services, options.cache, options);
return _this;
}
Connector.prototype.load = function load(languages, namespaces, callback) {
var _this2 = this;
if (!this.cache) return callback && callback();
var options = _extends({}, this.cache.options, this.options.cache);
if (typeof languages === 'string') languages = this.services.languageUtils.toResolveHierarchy(languages);
if (typeof namespaces === 'string') namespaces = [namespaces];
if (options.enabled) {
this.cache.load(languages, function (err, data) {
if (err) _this2.logger.error('loading languages ' + languages.join(', ') + ' from cache failed', err);
if (data) {
for (var l in data) {
for (var n in data[l]) {
if (n === 'i18nStamp') continue;
var bundle = data[l][n];
if (bundle) _this2.store.addResourceBundle(l, n, bundle);
}
}
}
if (callback) callback();
});
} else {
if (callback) callback();
}
};
Connector.prototype.save = function save() {
if (this.cache && this.options.cache && this.options.cache.enabled) this.cache.save(this.store.data);
};
return Connector;
}(EventEmitter);
function get$1() {
return {
debug: false,
initImmediate: true,
ns: ['translation'],
defaultNS: ['translation'],
fallbackLng: ['dev'],
fallbackNS: false, // string or array of namespaces
whitelist: false, // array with whitelisted languages
nonExplicitWhitelist: false,
load: 'all', // | currentOnly | languageOnly
preload: false, // array with preload languages
keySeparator: '.',
nsSeparator: ':',
pluralSeparator: '_',
contextSeparator: '_',
saveMissing: false, // enable to send missing values
saveMissingTo: 'fallback', // 'current' || 'all'
missingKeyHandler: false, // function(lng, ns, key, fallbackValue) -> override if prefer on handling
postProcess: false, // string or array of postProcessor names
returnNull: true, // allows null value as valid translation
returnEmptyString: true, // allows empty string value as valid translation
returnObjects: false,
joinArrays: false, // or string to join array
returnedObjectHandler: function returnedObjectHandler() {}, // function(key, value, options) triggered if key returns object but returnObjects is set to false
parseMissingKeyHandler: false, // function(key) parsed a key that was not found in t() before returning
appendNamespaceToMissingKey: false,
overloadTranslationOptionHandler: function overloadTranslationOptionHandler(args) {
return { defaultValue: args[1] };
},
interpolation: {
escapeValue: true,
format: function format(value, _format, lng) {
return value;
},
prefix: '{{',
suffix: '}}',
formatSeparator: ',',
// prefixEscaped: '{{',
// suffixEscaped: '}}',
// unescapeSuffix: '',
unescapePrefix: '-',
nestingPrefix: '$t(',
nestingSuffix: ')',
// nestingPrefixEscaped: '$t(',
// nestingSuffixEscaped: ')',
defaultVariables: undefined // object that can have values to interpolate on - extends passed in interpolation data
}
};
}
function transformOptions(options) {
// create namespace object if namespace is passed in as string
if (typeof options.ns === 'string') options.ns = [options.ns];
if (typeof options.fallbackLng === 'string') options.fallbackLng = [options.fallbackLng];
if (typeof options.fallbackNS === 'string') options.fallbackNS = [options.fallbackNS];
// extend whitelist with cimode
if (options.whitelist && options.whitelist.indexOf('cimode') < 0) options.whitelist.push('cimode');
return options;
}
function noop() {}
var I18n = function (_EventEmitter) {
inherits(I18n, _EventEmitter);
function I18n() {
var options = arguments.length > 0 && arguments[0] !== undefined ? arguments[0] : {};
var callback = arguments[1];
classCallCheck(this, I18n);
var _this = possibleConstructorReturn(this, _EventEmitter.call(this));
_this.options = transformOptions(options);
_this.services = {};
_this.logger = baseLogger;
_this.modules = {};
if (callback && !_this.isInitialized) _this.init(options, callback);
return _this;
}
I18n.prototype.init = function init(options, callback) {
var _this2 = this;
if (typeof options === 'function') {
callback = options;
options = {};
}
if (!options) options = {};
if (options.compatibilityAPI === 'v1') {
this.options = _extends({}, get$1(), transformOptions(convertAPIOptions(options)), {});
} else if (options.compatibilityJSON === 'v1') {
this.options = _extends({}, get$1(), transformOptions(convertJSONOptions(options)), {});
} else {
this.options = _extends({}, get$1(), this.options, transformOptions(options));
}
if (!callback) callback = noop;
function createClassOnDemand(ClassOrObject) {
if (!ClassOrObject) return;
if (typeof ClassOrObject === 'function') return new ClassOrObject();
return ClassOrObject;
}
// init services
if (!this.options.isClone) {
if (this.modules.logger) {
baseLogger.init(createClassOnDemand(this.modules.logger), this.options);
} else {
baseLogger.init(null, this.options);
}
var lu = new LanguageUtil(this.options);
this.store = new ResourceStore(this.options.resources, this.options);
var s = this.services;
s.logger = baseLogger;
s.resourceStore = this.store;
s.resourceStore.on('added removed', function (lng, ns) {
s.cacheConnector.save();
});
s.languageUtils = lu;
s.pluralResolver = new PluralResolver(lu, { prepend: this.options.pluralSeparator, compatibilityJSON: this.options.compatibilityJSON });
s.interpolator = new Interpolator(this.options);
s.backendConnector = new Connector(createClassOnDemand(this.modules.backend), s.resourceStore, s, this.options);
// pipe events from backendConnector
s.backendConnector.on('*', function (event) {
for (var _len = arguments.length, args = Array(_len > 1 ? _len - 1 : 0), _key = 1; _key < _len; _key++) {
args[_key - 1] = arguments[_key];
}
_this2.emit.apply(_this2, [event].concat(args));
});
s.backendConnector.on('loaded', function (loaded) {
s.cacheConnector.save();
});
s.cacheConnector = new Connector$1(createClassOnDemand(this.modules.cache), s.resourceStore, s, this.options);
// pipe events from backendConnector
s.cacheConnector.on('*', function (event) {
for (var _len2 = arguments.length, args = Array(_len2 > 1 ? _len2 - 1 : 0), _key2 = 1; _key2 < _len2; _key2++) {
args[_key2 - 1] = arguments[_key2];
}
_this2.emit.apply(_this2, [event].concat(args));
});
if (this.modules.languageDetector) {
s.languageDetector = createClassOnDemand(this.modules.languageDetector);
s.languageDetector.init(s, this.options.detection, this.options);
}
this.translator = new Translator(this.services, this.options);
// pipe events from translator
this.translator.on('*', function (event) {
for (var _len3 = arguments.length, args = Array(_len3 > 1 ? _len3 - 1 : 0), _key3 = 1; _key3 < _len3; _key3++) {
args[_key3 - 1] = arguments[_key3];
}
_this2.emit.apply(_this2, [event].concat(args));
});
}
// append api
var storeApi = ['getResource', 'addResource', 'addResources', 'addResourceBundle', 'removeResourceBundle', 'hasResourceBundle', 'getResourceBundle'];
storeApi.forEach(function (fcName) {
_this2[fcName] = function () {
return this.store[fcName].apply(this.store, arguments);
};
});
// TODO: COMPATIBILITY remove this
if (this.options.compatibilityAPI === 'v1') appendBackwardsAPI(this);
var load = function load() {
_this2.changeLanguage(_this2.options.lng, function (err, t) {
_this2.emit('initialized', _this2.options);
_this2.logger.log('initialized', _this2.options);
callback(err, t);
});
};
if (this.options.resources || !this.options.initImmediate) {
load();
} else {
setTimeout(load, 0);
}
return this;
};
I18n.prototype.loadResources = function loadResources(callback) {
var _this3 = this;
if (!callback) callback = noop;
if (!this.options.resources) {
var _ret = function () {
if (_this3.language && _this3.language.toLowerCase() === 'cimode') return {
v: callback()
}; // avoid loading resources for cimode
var toLoad = [];
var append = function append(lng) {
var lngs = _this3.services.languageUtils.toResolveHierarchy(lng);
lngs.forEach(function (l) {
if (toLoad.indexOf(l) < 0) toLoad.push(l);
});
};
append(_this3.language);
if (_this3.options.preload) {
_this3.options.preload.forEach(function (l) {
append(l);
});
}
_this3.services.cacheConnector.load(toLoad, _this3.options.ns, function () {
_this3.services.backendConnector.load(toLoad, _this3.options.ns, callback);
});
}();
if ((typeof _ret === 'undefined' ? 'undefined' : _typeof(_ret)) === "object") return _ret.v;
} else {
callback(null);
}
};
I18n.prototype.reloadResources = function reloadResources(lngs, ns) {
if (!lngs) lngs = this.languages;
if (!ns) ns = this.options.ns;
this.services.backendConnector.reload(lngs, ns);
};
I18n.prototype.use = function use(module) {
if (module.type === 'backend') {
this.modules.backend = module;
}
if (module.type === 'cache') {
this.modules.cache = module;
}
if (module.type === 'logger' || module.log && module.warn && module.warn) {
this.modules.logger = module;
}
if (module.type === 'languageDetector') {
this.modules.languageDetector = module;
}
if (module.type === 'postProcessor') {
postProcessor.addPostProcessor(module);
}
return this;
};
I18n.prototype.changeLanguage = function changeLanguage(lng, callback) {
var _this4 = this;
var done = function done(err) {
if (lng) {
_this4.emit('languageChanged', lng);
_this4.logger.log('languageChanged', lng);
}
if (callback) callback(err, function () {
for (var _len4 = arguments.length, args = Array(_len4), _key4 = 0; _key4 < _len4; _key4++) {
args[_key4] = arguments[_key4];
}
return _this4.t.apply(_this4, args);
});
};
if (!lng && this.services.languageDetector) lng = this.services.languageDetector.detect();
if (lng) {
this.language = lng;
this.languages = this.services.languageUtils.toResolveHierarchy(lng);
this.translator.changeLanguage(lng);
if (this.services.languageDetector) this.services.languageDetector.cacheUserLanguage(lng);
}
this.loadResources(function (err) {
done(err);
});
};
I18n.prototype.getFixedT = function getFixedT(lng, ns) {
var _this5 = this;
var fixedT = function fixedT(key) {
var opts = arguments.length > 1 && arguments[1] !== undefined ? arguments[1] : {};
var options = _extends({}, opts);
options.lng = options.lng || fixedT.lng;
options.ns = options.ns || fixedT.ns;
return _this5.t(key, options);
};
fixedT.lng = lng;
fixedT.ns = ns;
return fixedT;
};
I18n.prototype.t = function t() {
return this.translator && this.translator.translate.apply(this.translator, arguments);
};
I18n.prototype.exists = function exists() {
return this.translator && this.translator.exists.apply(this.translator, arguments);
};
I18n.prototype.setDefaultNamespace = function setDefaultNamespace(ns) {
this.options.defaultNS = ns;
};
I18n.prototype.loadNamespaces = function loadNamespaces(ns, callback) {
var _this6 = this;
if (!this.options.ns) return callback && callback();
if (typeof ns === 'string') ns = [ns];
ns.forEach(function (n) {
if (_this6.options.ns.indexOf(n) < 0) _this6.options.ns.push(n);
});
this.loadResources(callback);
};
I18n.prototype.loadLanguages = function loadLanguages(lngs, callback) {
if (typeof lngs === 'string') lngs = [lngs];
var preloaded = this.options.preload || [];
var newLngs = lngs.filter(function (lng) {
return preloaded.indexOf(lng) < 0;
});
// Exit early if all given languages are already preloaded
if (!newLngs.length) return callback();
this.options.preload = preloaded.concat(newLngs);
this.loadResources(callback);
};
I18n.prototype.dir = function dir(lng) {
if (!lng) lng = this.language;
if (!lng) return 'rtl';
var 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', 'ur', 'ydd', 'yds', 'yih', 'ji', 'yi', 'hbo', 'men', 'xmn', 'fa', 'jpr', 'peo', 'pes', 'prs', 'dv', 'sam'];
return rtlLngs.indexOf(this.services.languageUtils.getLanguagePartFromCode(lng)) >= 0 ? 'rtl' : 'ltr';
};
I18n.prototype.createInstance = function createInstance() {
var options = arguments.length > 0 && arguments[0] !== undefined ? arguments[0] : {};
var callback = arguments[1];
return new I18n(options, callback);
};
I18n.prototype.cloneInstance = function cloneInstance() {
var _this7 = this;
var options = arguments.length > 0 && arguments[0] !== undefined ? arguments[0] : {};
var callback = arguments[1];
var clone = new I18n(_extends({}, options, this.options, { isClone: true }), callback);
var membersToCopy = ['store', 'services', 'language'];
membersToCopy.forEach(function (m) {
clone[m] = _this7[m];
});
clone.translator = new Translator(clone.services, clone.options);
clone.translator.on('*', function (event) {
for (var _len5 = arguments.length, args = Array(_len5 > 1 ? _len5 - 1 : 0), _key5 = 1; _key5 < _len5; _key5++) {
args[_key5 - 1] = arguments[_key5];
}
clone.emit.apply(clone, [event].concat(args));
});
return clone;
};
return I18n;
}(EventEmitter);
var i18next$1 = new I18n();
return i18next$1;
})));