(function (global, factory) {
typeof exports === 'object' && typeof module !== 'undefined' ? module.exports = factory() :
typeof define === 'function' && define.amd ? define(factory) :
(global = global || self, global.i18next = factory());
}(this, function () { 'use strict';
function _typeof2(obj) { if (typeof Symbol === "function" && typeof Symbol.iterator === "symbol") { _typeof2 = function _typeof2(obj) { return typeof obj; }; } else { _typeof2 = function _typeof2(obj) { return obj && typeof Symbol === "function" && obj.constructor === Symbol && obj !== Symbol.prototype ? "symbol" : typeof obj; }; } return _typeof2(obj); }
function _typeof(obj) {
if (typeof Symbol === "function" && _typeof2(Symbol.iterator) === "symbol") {
_typeof = function _typeof(obj) {
return _typeof2(obj);
};
} else {
_typeof = function _typeof(obj) {
return obj && typeof Symbol === "function" && obj.constructor === Symbol && obj !== Symbol.prototype ? "symbol" : _typeof2(obj);
};
}
return _typeof(obj);
}
function _defineProperty(obj, key, value) {
if (key in obj) {
Object.defineProperty(obj, key, {
value: value,
enumerable: true,
configurable: true,
writable: true
});
} else {
obj[key] = value;
}
return obj;
}
function _objectSpread(target) {
for (var i = 1; i < arguments.length; i++) {
var source = arguments[i] != null ? arguments[i] : {};
var ownKeys = Object.keys(source);
if (typeof Object.getOwnPropertySymbols === 'function') {
ownKeys = ownKeys.concat(Object.getOwnPropertySymbols(source).filter(function (sym) {
return Object.getOwnPropertyDescriptor(source, sym).enumerable;
}));
}
ownKeys.forEach(function (key) {
_defineProperty(target, key, source[key]);
});
}
return target;
}
function _classCallCheck(instance, Constructor) {
if (!(instance instanceof Constructor)) {
throw new TypeError("Cannot call a class as a function");
}
}
function _defineProperties(target, props) {
for (var i = 0; i < props.length; i++) {
var descriptor = props[i];
descriptor.enumerable = descriptor.enumerable || false;
descriptor.configurable = true;
if ("value" in descriptor) descriptor.writable = true;
Object.defineProperty(target, descriptor.key, descriptor);
}
}
function _createClass(Constructor, protoProps, staticProps) {
if (protoProps) _defineProperties(Constructor.prototype, protoProps);
if (staticProps) _defineProperties(Constructor, staticProps);
return Constructor;
}
function _assertThisInitialized(self) {
if (self === void 0) {
throw new ReferenceError("this hasn't been initialised - super() hasn't been called");
}
return self;
}
function _possibleConstructorReturn(self, call) {
if (call && (_typeof(call) === "object" || typeof call === "function")) {
return call;
}
return _assertThisInitialized(self);
}
function _getPrototypeOf(o) {
_getPrototypeOf = Object.setPrototypeOf ? Object.getPrototypeOf : function _getPrototypeOf(o) {
return o.__proto__ || Object.getPrototypeOf(o);
};
return _getPrototypeOf(o);
}
function _setPrototypeOf(o, p) {
_setPrototypeOf = Object.setPrototypeOf || function _setPrototypeOf(o, p) {
o.__proto__ = p;
return o;
};
return _setPrototypeOf(o, p);
}
function _inherits(subClass, superClass) {
if (typeof superClass !== "function" && superClass !== null) {
throw new TypeError("Super expression must either be null or a function");
}
subClass.prototype = Object.create(superClass && superClass.prototype, {
constructor: {
value: subClass,
writable: true,
configurable: true
}
});
if (superClass) _setPrototypeOf(subClass, superClass);
}
function _arrayWithoutHoles(arr) {
if (Array.isArray(arr)) {
for (var i = 0, arr2 = new Array(arr.length); i < arr.length; i++) {
arr2[i] = arr[i];
}
return arr2;
}
}
function _iterableToArray(iter) {
if (Symbol.iterator in Object(iter) || Object.prototype.toString.call(iter) === "[object Arguments]") return Array.from(iter);
}
function _nonIterableSpread() {
throw new TypeError("Invalid attempt to spread non-iterable instance");
}
function _toConsumableArray(arr) {
return _arrayWithoutHoles(arr) || _iterableToArray(arr) || _nonIterableSpread();
}
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) {
var _console;
/* eslint no-console: 0 */
if (console && console[type]) (_console = console)[type].apply(_console, _toConsumableArray(args));
}
};
var Logger =
/*#__PURE__*/
function () {
function Logger(concreteLogger) {
var options = arguments.length > 1 && arguments[1] !== undefined ? arguments[1] : {};
_classCallCheck(this, Logger);
this.init(concreteLogger, options);
}
_createClass(Logger, [{
key: "init",
value: 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;
}
}, {
key: "setDebug",
value: function setDebug(bool) {
this.debug = bool;
}
}, {
key: "log",
value: function log() {
for (var _len = arguments.length, args = new Array(_len), _key = 0; _key < _len; _key++) {
args[_key] = arguments[_key];
}
return this.forward(args, 'log', '', true);
}
}, {
key: "warn",
value: function warn() {
for (var _len2 = arguments.length, args = new Array(_len2), _key2 = 0; _key2 < _len2; _key2++) {
args[_key2] = arguments[_key2];
}
return this.forward(args, 'warn', '', true);
}
}, {
key: "error",
value: function error() {
for (var _len3 = arguments.length, args = new Array(_len3), _key3 = 0; _key3 < _len3; _key3++) {
args[_key3] = arguments[_key3];
}
return this.forward(args, 'error', '');
}
}, {
key: "deprecate",
value: function deprecate() {
for (var _len4 = arguments.length, args = new Array(_len4), _key4 = 0; _key4 < _len4; _key4++) {
args[_key4] = arguments[_key4];
}
return this.forward(args, 'warn', 'WARNING DEPRECATED: ', true);
}
}, {
key: "forward",
value: function forward(args, lvl, prefix, debugOnly) {
if (debugOnly && !this.debug) return null;
if (typeof args[0] === 'string') args[0] = "".concat(prefix).concat(this.prefix, " ").concat(args[0]);
return this.logger[lvl](args);
}
}, {
key: "create",
value: function create(moduleName) {
return new Logger(this.logger, _objectSpread({}, {
prefix: "".concat(this.prefix, ":").concat(moduleName, ":")
}, this.options));
}
}]);
return Logger;
}();
var baseLogger = new Logger();
var EventEmitter =
/*#__PURE__*/
function () {
function EventEmitter() {
_classCallCheck(this, EventEmitter);
this.observers = {};
}
_createClass(EventEmitter, [{
key: "on",
value: function on(events, listener) {
var _this = this;
events.split(' ').forEach(function (event) {
_this.observers[event] = _this.observers[event] || [];
_this.observers[event].push(listener);
});
return this;
}
}, {
key: "off",
value: 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);
}
}
});
}
}, {
key: "emit",
value: function emit(event) {
for (var _len = arguments.length, args = new Array(_len > 1 ? _len - 1 : 0), _key = 1; _key < _len; _key++) {
args[_key - 1] = arguments[_key];
}
if (this.observers[event]) {
var cloned = [].concat(this.observers[event]);
cloned.forEach(function (observer) {
observer.apply(void 0, args);
});
}
if (this.observers['*']) {
var _cloned = [].concat(this.observers['*']);
_cloned.forEach(function (observer) {
observer.apply(observer, [event].concat(args));
});
}
}
}]);
return EventEmitter;
}();
// http://lea.verou.me/2016/12/resolve-promises-externally-with-this-one-weird-trick/
function defer() {
var res;
var rej;
var promise = new Promise(function (resolve, reject) {
res = resolve;
rej = reject;
});
promise.resolve = res;
promise.reject = rej;
return promise;
}
function makeString(object) {
if (object == null) return '';
/* eslint prefer-template: 0 */
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;
}
function canNotTraverseDeeper() {
return !object || typeof object === 'string';
}
var stack = typeof path !== 'string' ? [].concat(path) : path.split('.');
while (stack.length > 1) {
if (canNotTraverseDeeper()) return {};
var key = cleanKey(stack.shift());
if (!object[key] && Empty) object[key] = new Empty();
object = object[key];
}
if (canNotTraverseDeeper()) 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) {
/* eslint no-restricted-syntax: 0 */
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) {
/* eslint no-useless-escape: 0 */
return str.replace(/[\-\[\]\/\{\}\(\)\*\+\?\.\\\^\$\|]/g, '\\$&');
}
/* eslint-disable */
var _entityMap = {
'&': '&',
'<': '<',
'>': '>',
'"': '"',
"'": ''',
'/': '/'
};
/* eslint-enable */
function escape(data) {
if (typeof data === 'string') {
return data.replace(/[&<>"'\/]/g, function (s) {
return _entityMap[s];
});
}
return data;
}
var ResourceStore =
/*#__PURE__*/
function (_EventEmitter) {
_inherits(ResourceStore, _EventEmitter);
function ResourceStore(data) {
var _this;
var options = arguments.length > 1 && arguments[1] !== undefined ? arguments[1] : {
ns: ['translation'],
defaultNS: 'translation'
};
_classCallCheck(this, ResourceStore);
_this = _possibleConstructorReturn(this, _getPrototypeOf(ResourceStore).call(this));
EventEmitter.call(_assertThisInitialized(_this)); // <=IE10 fix (unable to call parent constructor)
_this.data = data || {};
_this.options = options;
if (_this.options.keySeparator === undefined) {
_this.options.keySeparator = '.';
}
return _this;
}
_createClass(ResourceStore, [{
key: "addNamespaces",
value: function addNamespaces(ns) {
if (this.options.ns.indexOf(ns) < 0) {
this.options.ns.push(ns);
}
}
}, {
key: "removeNamespaces",
value: function removeNamespaces(ns) {
var index = this.options.ns.indexOf(ns);
if (index > -1) {
this.options.ns.splice(index, 1);
}
}
}, {
key: "getResource",
value: function getResource(lng, ns, key) {
var options = arguments.length > 3 && arguments[3] !== undefined ? arguments[3] : {};
var keySeparator = options.keySeparator !== undefined ? options.keySeparator : this.options.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);
}
}, {
key: "addResource",
value: 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);
}
}, {
key: "addResources",
value: function addResources(lng, ns, resources) {
var options = arguments.length > 3 && arguments[3] !== undefined ? arguments[3] : {
silent: false
};
/* eslint no-restricted-syntax: 0 */
for (var m in resources) {
if (typeof resources[m] === 'string' || Object.prototype.toString.apply(resources[m]) === '[object Array]') this.addResource(lng, ns, m, resources[m], {
silent: true
});
}
if (!options.silent) this.emit('added', lng, ns, resources);
}
}, {
key: "addResourceBundle",
value: function addResourceBundle(lng, ns, resources, deep, overwrite) {
var options = arguments.length > 5 && arguments[5] !== undefined ? arguments[5] : {
silent: false
};
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 = _objectSpread({}, pack, resources);
}
setPath(this.data, path, pack);
if (!options.silent) this.emit('added', lng, ns, resources);
}
}, {
key: "removeResourceBundle",
value: function removeResourceBundle(lng, ns) {
if (this.hasResourceBundle(lng, ns)) {
delete this.data[lng][ns];
}
this.removeNamespaces(ns);
this.emit('removed', lng, ns);
}
}, {
key: "hasResourceBundle",
value: function hasResourceBundle(lng, ns) {
return this.getResource(lng, ns) !== undefined;
}
}, {
key: "getResourceBundle",
value: function getResourceBundle(lng, ns) {
if (!ns) ns = this.options.defaultNS; // COMPATIBILITY: remove extend in v2.1.0
if (this.options.compatibilityAPI === 'v1') return _objectSpread({}, {}, this.getResource(lng, ns));
return this.getResource(lng, ns);
}
}, {
key: "getDataByLanguage",
value: function getDataByLanguage(lng) {
return this.data[lng];
}
}, {
key: "toJSON",
value: 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;
}
};
var Translator =
/*#__PURE__*/
function (_EventEmitter) {
_inherits(Translator, _EventEmitter);
function Translator(services) {
var _this;
var options = arguments.length > 1 && arguments[1] !== undefined ? arguments[1] : {};
_classCallCheck(this, Translator);
_this = _possibleConstructorReturn(this, _getPrototypeOf(Translator).call(this));
EventEmitter.call(_assertThisInitialized(_this)); // <=IE10 fix (unable to call parent constructor)
copy(['resourceStore', 'languageUtils', 'pluralResolver', 'interpolator', 'backendConnector', 'i18nFormat'], services, _assertThisInitialized(_this));
_this.options = options;
if (_this.options.keySeparator === undefined) {
_this.options.keySeparator = '.';
}
_this.logger = baseLogger.create('translator');
return _this;
}
_createClass(Translator, [{
key: "changeLanguage",
value: function changeLanguage(lng) {
if (lng) this.language = lng;
}
}, {
key: "exists",
value: function exists(key) {
var options = arguments.length > 1 && arguments[1] !== undefined ? arguments[1] : {
interpolation: {}
};
var resolved = this.resolve(key, options);
return resolved && resolved.res !== undefined;
}
}, {
key: "extractFromKey",
value: function extractFromKey(key, options) {
var nsSeparator = options.nsSeparator || this.options.nsSeparator;
if (nsSeparator === undefined) nsSeparator = ':';
var keySeparator = options.keySeparator !== undefined ? options.keySeparator : this.options.keySeparator;
var namespaces = options.ns || this.options.defaultNS;
if (nsSeparator && key.indexOf(nsSeparator) > -1) {
var parts = key.split(nsSeparator);
if (nsSeparator !== keySeparator || nsSeparator === keySeparator && this.options.ns.indexOf(parts[0]) > -1) namespaces = parts.shift();
key = parts.join(keySeparator);
}
if (typeof namespaces === 'string') namespaces = [namespaces];
return {
key: key,
namespaces: namespaces
};
}
}, {
key: "translate",
value: function translate(keys, options) {
var _this2 = this;
if (_typeof(options) !== 'object' && this.options.overloadTranslationOptionHandler) {
/* eslint prefer-rest-params: 0 */
options = this.options.overloadTranslationOptionHandler(arguments);
}
if (!options) options = {}; // non valid keys handling
if (keys === undefined || keys === null) return '';
if (!Array.isArray(keys)) keys = [String(keys)]; // separators
var keySeparator = options.keySeparator !== undefined ? options.keySeparator : this.options.keySeparator; // get namespace(s)
var _this$extractFromKey = this.extractFromKey(keys[keys.length - 1], options),
key = _this$extractFromKey.key,
namespaces = _this$extractFromKey.namespaces;
var namespace = namespaces[namespaces.length - 1]; // return key on CIMode
var lng = options.lng || this.language;
var appendNamespaceToCIMode = options.appendNamespaceToCIMode || this.options.appendNamespaceToCIMode;
if (lng && lng.toLowerCase() === 'cimode') {
if (appendNamespaceToCIMode) {
var nsSeparator = options.nsSeparator || this.options.nsSeparator;
return namespace + nsSeparator + key;
}
return key;
} // resolve from store
var resolved = this.resolve(keys, options);
var res = resolved && resolved.res;
var resUsedKey = resolved && resolved.usedKey || key;
var resExactUsedKey = resolved && resolved.exactUsedKey || key;
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
var handleAsObjectInI18nFormat = !this.i18nFormat || this.i18nFormat.handleAsObject;
var handleAsObject = typeof res !== 'string' && typeof res !== 'boolean' && typeof res !== 'number';
if (handleAsObjectInI18nFormat && res && handleAsObject && noObject.indexOf(resType) < 0 && !(typeof joinArrays === 'string' && 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(resUsedKey, res, options) : "key '".concat(key, " (").concat(this.language, ")' returned an object instead of string.");
} // if we got a separator we loop over children - else we just return object as is
// as having it set to false means no hierarchy so no lookup for nested values
if (keySeparator) {
var resTypeIsArray = resType === '[object Array]';
var copy$$1 = resTypeIsArray ? [] : {}; // apply child translation on a copy
/* eslint no-restricted-syntax: 0 */
var newKeyToUse = resTypeIsArray ? resExactUsedKey : resUsedKey;
for (var m in res) {
if (Object.prototype.hasOwnProperty.call(res, m)) {
var deepKey = "".concat(newKeyToUse).concat(keySeparator).concat(m);
copy$$1[m] = this.translate(deepKey, _objectSpread({}, options, {
joinArrays: false,
ns: namespaces
}));
if (copy$$1[m] === deepKey) copy$$1[m] = res[m]; // if nothing found use orginal value as fallback
}
}
res = copy$$1;
}
} else if (handleAsObjectInI18nFormat && typeof joinArrays === 'string' && resType === '[object Array]') {
// array special treatment
res = res.join(joinArrays);
if (res) res = this.extendTranslation(res, keys, options);
} else {
// string, empty or null
var usedDefault = false;
var usedKey = false; // fallback value
if (!this.isValidLookup(res) && options.defaultValue !== undefined) {
usedDefault = true;
if (options.count !== undefined) {
var suffix = this.pluralResolver.getSuffix(lng, options.count);
res = options["defaultValue".concat(suffix)];
}
if (!res) res = options.defaultValue;
}
if (!this.isValidLookup(res)) {
usedKey = true;
res = key;
} // save missing
var updateMissing = options.defaultValue && options.defaultValue !== res && this.options.updateMissing;
if (usedKey || usedDefault || updateMissing) {
this.logger.log(updateMissing ? 'updateKey' : 'missingKey', lng, namespace, key, updateMissing ? options.defaultValue : 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 {
lngs.push(options.lng || this.language);
}
var send = function send(l, k) {
if (_this2.options.missingKeyHandler) {
_this2.options.missingKeyHandler(l, namespace, k, updateMissing ? options.defaultValue : res, updateMissing, options);
} else if (_this2.backendConnector && _this2.backendConnector.saveMissing) {
_this2.backendConnector.saveMissing(l, namespace, k, updateMissing ? options.defaultValue : res, updateMissing, options);
}
_this2.emit('missingKey', l, namespace, k, res);
};
if (this.options.saveMissing) {
var needsPluralHandling = options.count !== undefined && typeof options.count !== 'string';
if (this.options.saveMissingPlurals && needsPluralHandling) {
lngs.forEach(function (l) {
var plurals = _this2.pluralResolver.getPluralFormsOfKey(l, key);
plurals.forEach(function (p) {
return send([l], p);
});
});
} else {
send(lngs, key);
}
}
} // extend
res = this.extendTranslation(res, keys, options, resolved); // append namespace if still key
if (usedKey && res === key && this.options.appendNamespaceToMissingKey) res = "".concat(namespace, ":").concat(key); // parseMissingKeyHandler
if (usedKey && this.options.parseMissingKeyHandler) res = this.options.parseMissingKeyHandler(res);
} // return
return res;
}
}, {
key: "extendTranslation",
value: function extendTranslation(res, key, options, resolved) {
var _this3 = this;
if (this.i18nFormat && this.i18nFormat.parse) {
res = this.i18nFormat.parse(res, options, resolved.usedLng, resolved.usedNS, resolved.usedKey, {
resolved: resolved
});
} else if (!options.skipInterpolation) {
// i18next.parsing
if (options.interpolation) this.interpolator.init(_objectSpread({}, options, {
interpolation: _objectSpread({}, this.options.interpolation, options.interpolation)
})); // interpolate
var data = options.replace && typeof options.replace !== 'string' ? options.replace : options;
if (this.options.interpolation.defaultVariables) data = _objectSpread({}, this.options.interpolation.defaultVariables, data);
res = this.interpolator.interpolate(res, data, options.lng || this.language, options); // nesting
if (options.nest !== false) res = this.interpolator.nest(res, function () {
return _this3.translate.apply(_this3, arguments);
}, 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 && res !== null && postProcessorNames && postProcessorNames.length && options.applyPostProcessor !== false) {
res = postProcessor.handle(postProcessorNames, res, key, options, this);
}
return res;
}
}, {
key: "resolve",
value: function resolve(keys) {
var _this4 = this;
var options = arguments.length > 1 && arguments[1] !== undefined ? arguments[1] : {};
var found;
var usedKey; // plain key
var exactUsedKey; // key with context / plural
var usedLng;
var usedNS;
if (typeof keys === 'string') keys = [keys]; // forEach possible key
keys.forEach(function (k) {
if (_this4.isValidLookup(found)) return;
var extracted = _this4.extractFromKey(k, options);
var key = extracted.key;
usedKey = key;
var namespaces = extracted.namespaces;
if (_this4.options.fallbackNS) namespaces = namespaces.concat(_this4.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 : _this4.languageUtils.toResolveHierarchy(options.lng || _this4.language, options.fallbackLng);
namespaces.forEach(function (ns) {
if (_this4.isValidLookup(found)) return;
usedNS = ns;
codes.forEach(function (code) {
if (_this4.isValidLookup(found)) return;
usedLng = code;
var finalKey = key;
var finalKeys = [finalKey];
if (_this4.i18nFormat && _this4.i18nFormat.addLookupKeys) {
_this4.i18nFormat.addLookupKeys(finalKeys, key, code, ns, options);
} else {
var pluralSuffix;
if (needsPluralHandling) pluralSuffix = _this4.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 += "".concat(_this4.options.contextSeparator).concat(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;
/* eslint no-cond-assign: 0 */
while (possibleKey = finalKeys.pop()) {
if (!_this4.isValidLookup(found)) {
exactUsedKey = possibleKey;
found = _this4.getResource(code, ns, possibleKey, options);
}
}
});
});
});
return {
res: found,
usedKey: usedKey,
exactUsedKey: exactUsedKey,
usedLng: usedLng,
usedNS: usedNS
};
}
}, {
key: "isValidLookup",
value: function isValidLookup(res) {
return res !== undefined && !(!this.options.returnNull && res === null) && !(!this.options.returnEmptyString && res === '');
}
}, {
key: "getResource",
value: function getResource(code, ns, key) {
var options = arguments.length > 3 && arguments[3] !== undefined ? arguments[3] : {};
if (this.i18nFormat && this.i18nFormat.getResource) return this.i18nFormat.getResource(code, ns, key, options);
return this.resourceStore.getResource(code, ns, key, options);
}
}]);
return Translator;
}(EventEmitter);
function capitalize(string) {
return string.charAt(0).toUpperCase() + string.slice(1);
}
var LanguageUtil =
/*#__PURE__*/
function () {
function LanguageUtil(options) {
_classCallCheck(this, LanguageUtil);
this.options = options;
this.whitelist = this.options.whitelist || false;
this.logger = baseLogger.create('languageUtils');
}
_createClass(LanguageUtil, [{
key: "getScriptPartFromCode",
value: function getScriptPartFromCode(code) {
if (!code || code.indexOf('-') < 0) return null;
var p = code.split('-');
if (p.length === 2) return null;
p.pop();
return this.formatLanguageCode(p.join('-'));
}
}, {
key: "getLanguagePartFromCode",
value: function getLanguagePartFromCode(code) {
if (!code || code.indexOf('-') < 0) return code;
var p = code.split('-');
return this.formatLanguageCode(p[0]);
}
}, {
key: "formatLanguageCode",
value: 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('-');
}
return this.options.cleanCode || this.options.lowerCaseLng ? code.toLowerCase() : code;
}
}, {
key: "isWhitelisted",
value: function isWhitelisted(code) {
if (this.options.load === 'languageOnly' || this.options.nonExplicitWhitelist) {
code = this.getLanguagePartFromCode(code);
}
return !this.whitelist || !this.whitelist.length || this.whitelist.indexOf(code) > -1;
}
}, {
key: "getFallbackCodes",
value: function getFallbackCodes(fallbacks, code) {
if (!fallbacks) return [];
if (typeof fallbacks === 'string') fallbacks = [fallbacks];
if (Object.prototype.toString.apply(fallbacks) === '[object Array]') return fallbacks;
if (!code) return fallbacks["default"] || []; // 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 || [];
}
}, {
key: "toResolveHierarchy",
value: function toResolveHierarchy(code, fallbackCode) {
var _this = this;
var fallbackCodes = this.getFallbackCodes(fallbackCode || this.options.fallbackLng || [], code);
var codes = [];
var addCode = function addCode(c) {
if (!c) return;
if (_this.isWhitelisted(c)) {
codes.push(c);
} else {
_this.logger.warn("rejecting non-whitelisted language code: ".concat(c));
}
};
if (typeof code === 'string' && 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 (typeof code === 'string') {
addCode(this.formatLanguageCode(code));
}
fallbackCodes.forEach(function (fc) {
if (codes.indexOf(fc) < 0) addCode(_this.formatLanguageCode(fc));
});
return codes;
}
}]);
return LanguageUtil;
}();
/* eslint-disable */
var sets = [{
lngs: ['ach', 'ak', 'am', 'arn', 'br', 'fil', 'gun', 'ln', 'mfe', 'mg', 'mi', 'oc', 'pt', 'pt-BR', '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', 'et', 'eu', 'fi', 'fo', 'fur', 'fy', 'gl', 'gu', 'ha', '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', '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', 'cnr', '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
}, {
lngs: ['he'],
nr: [1, 2, 20, 21],
fc: 22
}];
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);
},
22: function _(n) {
return Number(n === 1 ? 0 : n === 2 ? 1 : (n < 0 || n > 10) && n % 10 == 0 ? 2 : 3);
}
};
/* eslint-enable */
function createRules() {
var rules = {};
sets.forEach(function (set) {
set.lngs.forEach(function (l) {
rules[l] = {
numbers: set.nr,
plurals: _rulesPluralsTypes[set.fc]
};
});
});
return rules;
}
var PluralResolver =
/*#__PURE__*/
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();
}
_createClass(PluralResolver, [{
key: "addRule",
value: function addRule(lng, obj) {
this.rules[lng] = obj;
}
}, {
key: "getRule",
value: function getRule(code) {
return this.rules[code] || this.rules[this.languageUtils.getLanguagePartFromCode(code)];
}
}, {
key: "needsPlural",
value: function needsPlural(code) {
var rule = this.getRule(code);
return rule && rule.numbers.length > 1;
}
}, {
key: "getPluralFormsOfKey",
value: function getPluralFormsOfKey(code, key) {
var _this = this;
var ret = [];
var rule = this.getRule(code);
if (!rule) return ret;
rule.numbers.forEach(function (n) {
var suffix = _this.getSuffix(code, n);
ret.push("".concat(key).concat(suffix));
});
return ret;
}
}, {
key: "getSuffix",
value: function getSuffix(code, count) {
var _this2 = this;
var rule = this.getRule(code);
if (rule) {
// if (rule.numbers.length === 1) return ''; // 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 (this.options.simplifyPluralSuffix && rule.numbers.length === 2 && rule.numbers[0] === 1) {
if (suffix === 2) {
suffix = 'plural';
} else if (suffix === 1) {
suffix = '';
}
}
var returnSuffix = function returnSuffix() {
return _this2.options.prepend && suffix.toString() ? _this2.options.prepend + suffix.toString() : suffix.toString();
}; // COMPATIBILITY JSON
// v1
if (this.options.compatibilityJSON === 'v1') {
if (suffix === 1) return '';
if (typeof suffix === 'number') return "_plural_".concat(suffix.toString());
return returnSuffix();
} else if (
/* v2 */
this.options.compatibilityJSON === 'v2') {
return returnSuffix();
} else if (
/* v3 - gettext index */
this.options.simplifyPluralSuffix && rule.numbers.length === 2 && rule.numbers[0] === 1) {
return returnSuffix();
}
return this.options.prepend && idx.toString() ? this.options.prepend + idx.toString() : idx.toString();
}
this.logger.warn("no plural rule found for: ".concat(code));
return '';
}
}]);
return PluralResolver;
}();
var Interpolator =
/*#__PURE__*/
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);
}
/* eslint no-param-reassign: 0 */
_createClass(Interpolator, [{
key: "init",
value: function init() {
var options = arguments.length > 0 && arguments[0] !== undefined ? arguments[0] : {};
var reset = arguments.length > 1 ? arguments[1] : undefined;
if (reset) {
this.options = options;
this.format = options.interpolation && options.interpolation.format || function (value) {
return value;
};
}
if (!options.interpolation) options.interpolation = {
escapeValue: true
};
var iOpts = options.interpolation;
this.escape = iOpts.escape !== undefined ? iOpts.escape : escape;
this.escapeValue = iOpts.escapeValue !== undefined ? iOpts.escapeValue : true;
this.useRawValueToEscape = iOpts.useRawValueToEscape !== undefined ? iOpts.useRawValueToEscape : false;
this.prefix = iOpts.prefix ? regexEscape(iOpts.prefix) : iOpts.prefixEscaped || '{{';
this.suffix = iOpts.suffix ? regexEscape(iOpts.suffix) : iOpts.suffixEscaped || '}}';
this.formatSeparator = iOpts.formatSeparator ? 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(')');
this.maxReplaces = iOpts.maxReplaces ? iOpts.maxReplaces : 1000; // the regexp
this.resetRegExp();
}
}, {
key: "reset",
value: function reset() {
if (this.options) this.init(this.options);
}
}, {
key: "resetRegExp",
value: function resetRegExp() {
// the regexp
var regexpStr = "".concat(this.prefix, "(.+?)").concat(this.suffix);
this.regexp = new RegExp(regexpStr, 'g');
var regexpUnescapeStr = "".concat(this.prefix).concat(this.unescapePrefix, "(.+?)").concat(this.unescapeSuffix).concat(this.suffix);
this.regexpUnescape = new RegExp(regexpUnescapeStr, 'g');
var nestingRegexpStr = "".concat(this.nestingPrefix, "(.+?)").concat(this.nestingSuffix);
this.nestingRegexp = new RegExp(nestingRegexpStr, 'g');
}
}, {
key: "interpolate",
value: function interpolate(str, data, lng, options) {
var _this = this;
var match;
var value;
var replaces;
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();
var missingInterpolationHandler = options && options.missingInterpolationHandler || this.options.missingInterpolationHandler;
replaces = 0; // unescape if has unescapePrefix/Suffix
/* eslint no-cond-assign: 0 */
while (match = this.regexpUnescape.exec(str)) {
value = handleFormat(match[1].trim());
str = str.replace(match[0], value);
this.regexpUnescape.lastIndex = 0;
replaces++;
if (replaces >= this.maxReplaces) {
break;
}
}
replaces = 0; // regular escape on demand
while (match = this.regexp.exec(str)) {
value = handleFormat(match[1].trim());
if (value === undefined) {
if (typeof missingInterpolationHandler === 'function') {
var temp = missingInterpolationHandler(str, match, options);
value = typeof temp === 'string' ? temp : '';
} else {
this.logger.warn("missed to pass in variable ".concat(match[1], " for interpolating ").concat(str));
value = '';
}
} else if (typeof value !== 'string' && !this.useRawValueToEscape) {
value = makeString(value);
}
value = this.escapeValue ? regexSafe(this.escape(value)) : regexSafe(value);
str = str.replace(match[0], value);
this.regexp.lastIndex = 0;
replaces++;
if (replaces >= this.maxReplaces) {
break;
}
}
return str;
}
}, {
key: "nest",
value: function nest(str, fc) {
var options = arguments.length > 2 && arguments[2] !== undefined ? arguments[2] : {};
var match;
var value;
var clonedOptions = _objectSpread({}, options);
clonedOptions.applyPostProcessor = false; // avoid post processing on nested lookup
// if value is something like "myKey": "lorem $(anotherKey, { "count": {{aValueInOptions}} })"
function handleHasOptions(key, inheritedOptions) {
if (key.indexOf(',') < 0) return key;
var p = key.split(',');
key = p.shift();
var optionsString = p.join(',');
optionsString = this.interpolate(optionsString, clonedOptions);
optionsString = optionsString.replace(/'/g, '"');
try {
clonedOptions = JSON.parse(optionsString);
if (inheritedOptions) clonedOptions = _objectSpread({}, inheritedOptions, clonedOptions);
} catch (e) {
this.logger.error("failed parsing options string in nesting for key ".concat(key), e);
}
return key;
} // regular escape on demand
while (match = this.nestingRegexp.exec(str)) {
value = fc(handleHasOptions.call(this, match[1].trim(), clonedOptions), clonedOptions); // is only the nesting key (key1 = '$(key2)') return the value without stringify
if (value && match[0] === str && typeof value !== 'string') return value; // no string to include or empty
if (typeof value !== 'string') value = makeString(value);
if (!value) {
this.logger.warn("missed to resolve ".concat(match[1], " for nesting ").concat(str));
value = '';
} // Nested keys should not be escaped by default #854
// value = this.escapeValue ? regexSafe(utils.escape(value)) : regexSafe(value);
str = str.replace(match[0], value);
this.regexp.lastIndex = 0;
}
return str;
}
}]);
return Interpolator;
}();
function _arrayWithHoles(arr) {
if (Array.isArray(arr)) return arr;
}
function _iterableToArrayLimit(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"] != null) _i["return"]();
} finally {
if (_d) throw _e;
}
}
return _arr;
}
function _nonIterableRest() {
throw new TypeError("Invalid attempt to destructure non-iterable instance");
}
function _slicedToArray(arr, i) {
return _arrayWithHoles(arr) || _iterableToArrayLimit(arr, i) || _nonIterableRest();
}
function remove(arr, what) {
var found = arr.indexOf(what);
while (found !== -1) {
arr.splice(found, 1);
found = arr.indexOf(what);
}
}
var Connector =
/*#__PURE__*/
function (_EventEmitter) {
_inherits(Connector, _EventEmitter);
function Connector(backend, store, services) {
var _this;
var options = arguments.length > 3 && arguments[3] !== undefined ? arguments[3] : {};
_classCallCheck(this, Connector);
_this = _possibleConstructorReturn(this, _getPrototypeOf(Connector).call(this));
EventEmitter.call(_assertThisInitialized(_this)); // <=IE10 fix (unable to call parent constructor)
_this.backend = backend;
_this.store = store;
_this.languageUtils = services.languageUtils;
_this.options = options;
_this.logger = baseLogger.create('backendConnector');
_this.state = {};
_this.queue = [];
if (_this.backend && _this.backend.init) {
_this.backend.init(services, options.backend, options);
}
return _this;
}
_createClass(Connector, [{
key: "queueLoad",
value: function queueLoad(languages, namespaces, options, callback) {
var _this2 = this;
// find what needs to be loaded
var toLoad = [];
var pending = [];
var toLoadLanguages = [];
var toLoadNamespaces = [];
languages.forEach(function (lng) {
var hasAllNamespaces = true;
namespaces.forEach(function (ns) {
var name = "".concat(lng, "|").concat(ns);
if (!options.reload && _this2.store.hasResourceBundle(lng, ns)) {
_this2.state[name] = 2; // loaded
} else if (_this2.state[name] < 0) ; 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
};
}
}, {
key: "loaded",
value: function loaded(name, err, data) {
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; // consolidated loading done in this run - only emit once for a loaded namespace
var loaded = {}; // 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) {
// only do once per loaded -> this.emit('loaded', q.loaded);
Object.keys(q.loaded).forEach(function (l) {
if (!loaded[l]) loaded[l] = [];
if (q.loaded[l].length) {
q.loaded[l].forEach(function (ns) {
if (loaded[l].indexOf(ns) < 0) loaded[l].push(ns);
});
}
});
/* eslint no-param-reassign: 0 */
q.done = true;
if (q.errors.length) {
q.callback(q.errors);
} else {
q.callback();
}
}
}); // emit consolidated loaded event
this.emit('loaded', loaded); // remove done load requests
this.queue = this.queue.filter(function (q) {
return !q.done;
});
}
}, {
key: "read",
value: function read(lng, ns, fcName) {
var _this3 = this;
var tried = arguments.length > 3 && arguments[3] !== undefined ? arguments[3] : 0;
var wait = arguments.length > 4 && arguments[4] !== undefined ? arguments[4] : 250;
var callback = arguments.length > 5 ? arguments[5] : undefined;
if (!lng.length) return callback(null, {}); // noting to load
return this.backend[fcName](lng, ns, function (err, data) {
if (err && data
/* = retryFlag */
&& tried < 5) {
setTimeout(function () {
_this3.read.call(_this3, lng, ns, fcName, tried + 1, wait * 2, callback);
}, wait);
return;
}
callback(err, data);
});
}
/* eslint consistent-return: 0 */
}, {
key: "prepareLoading",
value: function prepareLoading(languages, namespaces) {
var _this4 = this;
var options = arguments.length > 2 && arguments[2] !== undefined ? arguments[2] : {};
var callback = arguments.length > 3 ? arguments[3] : undefined;
if (!this.backend) {
this.logger.warn('No backend was added via i18next.use. Will not load resources.');
return callback && callback();
}
if (typeof languages === 'string') languages = this.languageUtils.toResolveHierarchy(languages);
if (typeof namespaces === 'string') namespaces = [namespaces];
var toLoad = this.queueLoad(languages, namespaces, options, callback);
if (!toLoad.toLoad.length) {
if (!toLoad.pending.length) callback(); // nothing to load and no pendings...callback now
return null; // pendings will trigger callback
}
toLoad.toLoad.forEach(function (name) {
_this4.loadOne(name);
});
}
}, {
key: "load",
value: function load(languages, namespaces, callback) {
this.prepareLoading(languages, namespaces, {}, callback);
}
}, {
key: "reload",
value: function reload(languages, namespaces, callback) {
this.prepareLoading(languages, namespaces, {
reload: true
}, callback);
}
}, {
key: "loadOne",
value: function loadOne(name) {
var _this5 = this;
var prefix = arguments.length > 1 && arguments[1] !== undefined ? arguments[1] : '';
var _name$split3 = name.split('|'),
_name$split4 = _slicedToArray(_name$split3, 2),
lng = _name$split4[0],
ns = _name$split4[1];
this.read(lng, ns, 'read', null, null, function (err, data) {
if (err) _this5.logger.warn("".concat(prefix, "loading namespace ").concat(ns, " for language ").concat(lng, " failed"), err);
if (!err && data) _this5.logger.log("".concat(prefix, "loaded namespace ").concat(ns, " for language ").concat(lng), data);
_this5.loaded(name, err, data);
});
}
}, {
key: "saveMissing",
value: function saveMissing(languages, namespace, key, fallbackValue, isUpdate) {
var options = arguments.length > 5 && arguments[5] !== undefined ? arguments[5] : {};
if (this.backend && this.backend.create) {
this.backend.create(languages, namespace, key, fallbackValue, null
/* unused callback */
, _objectSpread({}, options, {
isUpdate: isUpdate
}));
} // write to store to avoid resending
if (!languages || !languages[0]) return;
this.store.addResource(languages[0], namespace, key, fallbackValue);
}
}]);
return Connector;
}(EventEmitter);
function get() {
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
simplifyPluralSuffix: true,
keySeparator: '.',
nsSeparator: ':',
pluralSeparator: '_',
contextSeparator: '_',
partialBundledLanguages: false,
// allow bundling certain languages that are not remotely fetched
saveMissing: false,
// enable to send missing values
updateMissing: false,
// enable to update default values if different from translated value (only useful on initial development, or when keeping code as source of truth)
saveMissingTo: 'fallback',
// 'current' || 'all'
saveMissingPlurals: true,
// will save all forms not only singular key
missingKeyHandler: false,
// function(lng, ns, key, fallbackValue) -> override if prefer on handling
missingInterpolationHandler: false,
// function(str, match)
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,
appendNamespaceToCIMode: false,
overloadTranslationOptionHandler: function handle(args) {
var ret = {};
if (_typeof(args[1]) === 'object') ret = args[1];
if (typeof args[1] === 'string') ret.defaultValue = args[1];
if (typeof args[2] === 'string') ret.tDescription = args[2];
if (_typeof(args[2]) === 'object' || _typeof(args[3]) === 'object') {
var options = args[3] || args[2];
Object.keys(options).forEach(function (key) {
ret[key] = options[key];
});
}
return ret;
},
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
maxReplaces: 1000 // max replaces to prevent endless loop
}
};
}
/* eslint no-param-reassign: 0 */
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 = options.whitelist.concat(['cimode']);
}
return options;
}
function noop() {}
var I18n =
/*#__PURE__*/
function (_EventEmitter) {
_inherits(I18n, _EventEmitter);
function I18n() {
var _this;
var options = arguments.length > 0 && arguments[0] !== undefined ? arguments[0] : {};
var callback = arguments.length > 1 ? arguments[1] : undefined;
_classCallCheck(this, I18n);
_this = _possibleConstructorReturn(this, _getPrototypeOf(I18n).call(this));
EventEmitter.call(_assertThisInitialized(_this)); // <=IE10 fix (unable to call parent constructor)
_this.options = transformOptions(options);
_this.services = {};
_this.logger = baseLogger;
_this.modules = {
external: []
};
if (callback && !_this.isInitialized && !options.isClone) {
// https://github.com/i18next/i18next/issues/879
if (!_this.options.initImmediate) {
_this.init(options, callback);
return _possibleConstructorReturn(_this, _assertThisInitialized(_this));
}
setTimeout(function () {
_this.init(options, callback);
}, 0);
}
return _this;
}
_createClass(I18n, [{
key: "init",
value: function init() {
var _this2 = this;
var options = arguments.length > 0 && arguments[0] !== undefined ? arguments[0] : {};
var callback = arguments.length > 1 ? arguments[1] : undefined;
if (typeof options === 'function') {
callback = options;
options = {};
}
this.options = _objectSpread({}, get(), this.options, transformOptions(options));
this.format = this.options.interpolation.format;
if (!callback) callback = noop;
function createClassOnDemand(ClassOrObject) {
if (!ClassOrObject) return null;
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.languageUtils = lu;
s.pluralResolver = new PluralResolver(lu, {
prepend: this.options.pluralSeparator,
compatibilityJSON: this.options.compatibilityJSON,
simplifyPluralSuffix: this.options.simplifyPluralSuffix
});
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 = new Array(_len > 1 ? _len - 1 : 0), _key = 1; _key < _len; _key++) {
args[_key - 1] = arguments[_key];
}
_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);
}
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); // pipe events from translator
this.translator.on('*', function (event) {
for (var _len2 = arguments.length, args = new Array(_len2 > 1 ? _len2 - 1 : 0), _key2 = 1; _key2 < _len2; _key2++) {
args[_key2 - 1] = arguments[_key2];
}
_this2.emit.apply(_this2, [event].concat(args));
});
this.modules.external.forEach(function (m) {
if (m.init) m.init(_this2);
});
} // append api
var storeApi = ['getResource', 'addResource', 'addResources', 'addResourceBundle', 'removeResourceBundle', 'hasResourceBundle', 'getResourceBundle', 'getDataByLanguage'];
storeApi.forEach(function (fcName) {
_this2[fcName] = function () {
var _this2$store;
return (_this2$store = _this2.store)[fcName].apply(_this2$store, arguments);
};
});
var deferred = defer();
var load = function load() {
_this2.changeLanguage(_this2.options.lng, function (err, t) {
_this2.isInitialized = true;
_this2.logger.log('initialized', _this2.options);
_this2.emit('initialized', _this2.options);
deferred.resolve(t); // not rejecting on err (as err is only a loading translation failed warning)
callback(err, t);
});
};
if (this.options.resources || !this.options.initImmediate) {
load();
} else {
setTimeout(load, 0);
}
return deferred;
}
/* eslint consistent-return: 0 */
}, {
key: "loadResources",
value: function loadResources() {
var _this3 = this;
var callback = arguments.length > 0 && arguments[0] !== undefined ? arguments[0] : noop;
if (!this.options.resources || this.options.partialBundledLanguages) {
if (this.language && this.language.toLowerCase() === 'cimode') return callback(); // avoid loading resources for cimode
var toLoad = [];
var append = function append(lng) {
if (!lng) return;
var lngs = _this3.services.languageUtils.toResolveHierarchy(lng);
lngs.forEach(function (l) {
if (toLoad.indexOf(l) < 0) toLoad.push(l);
});
};
if (!this.language) {
// at least load fallbacks in this case
var fallbacks = this.services.languageUtils.getFallbackCodes(this.options.fallbackLng);
fallbacks.forEach(function (l) {
return append(l);
});
} else {
append(this.language);
}
if (this.options.preload) {
this.options.preload.forEach(function (l) {
return append(l);
});
}
this.services.backendConnector.load(toLoad, this.options.ns, callback);
} else {
callback(null);
}
}
}, {
key: "reloadResources",
value: function reloadResources(lngs, ns, callback) {
var deferred = defer();
if (!lngs) lngs = this.languages;
if (!ns) ns = this.options.ns;
if (!callback) callback = noop;
this.services.backendConnector.reload(lngs, ns, function (err) {
deferred.resolve(); // not rejecting on err (as err is only a loading translation failed warning)
callback(err);
});
return deferred;
}
}, {
key: "use",
value: function use(module) {
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 === '3rdParty') {
this.modules.external.push(module);
}
return this;
}
}, {
key: "changeLanguage",
value: function changeLanguage(lng, callback) {
var _this4 = this;
var deferred = defer();
this.emit('languageChanging', lng);
var done = function done(err, l) {
_this4.translator.changeLanguage(l);
if (l) {
_this4.emit('languageChanged', l);
_this4.logger.log('languageChanged', l);
}
deferred.resolve(function () {
return _this4.t.apply(_this4, arguments);
});
if (callback) callback(err, function () {
return _this4.t.apply(_this4, arguments);
});
};
var setLng = function setLng(l) {
if (l) {
_this4.language = l;
_this4.languages = _this4.services.languageUtils.toResolveHierarchy(l);
if (!_this4.translator.language) _this4.translator.changeLanguage(l);
if (_this4.services.languageDetector) _this4.services.languageDetector.cacheUserLanguage(l);
}
_this4.loadResources(function (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) {
this.services.languageDetector.detect(setLng);
} else {
setLng(lng);
}
return deferred;
}
}, {
key: "getFixedT",
value: function getFixedT(lng, ns) {
var _this5 = this;
var fixedT = function fixedT(key, opts) {
var options = _objectSpread({}, opts);
if (_typeof(opts) !== 'object') {
for (var _len3 = arguments.length, rest = new Array(_len3 > 2 ? _len3 - 2 : 0), _key3 = 2; _key3 < _len3; _key3++) {
rest[_key3 - 2] = arguments[_key3];
}
options = _this5.options.overloadTranslationOptionHandler([key, opts].concat(rest));
}
options.lng = options.lng || fixedT.lng;
options.lngs = options.lngs || fixedT.lngs;
options.ns = options.ns || fixedT.ns;
return _this5.t(key, options);
};
if (typeof lng === 'string') {
fixedT.lng = lng;
} else {
fixedT.lngs = lng;
}
fixedT.ns = ns;
return fixedT;
}
}, {
key: "t",
value: function t() {
var _this$translator;
return this.translator && (_this$translator = this.translator).translate.apply(_this$translator, arguments);
}
}, {
key: "exists",
value: function exists() {
var _this$translator2;
return this.translator && (_this$translator2 = this.translator).exists.apply(_this$translator2, arguments);
}
}, {
key: "setDefaultNamespace",
value: function setDefaultNamespace(ns) {
this.options.defaultNS = ns;
}
}, {
key: "loadNamespaces",
value: function loadNamespaces(ns, callback) {
var _this6 = this;
var deferred = defer();
if (!this.options.ns) {
callback && callback();
return Promise.resolve();
}
if (typeof ns === 'string') ns = [ns];
ns.forEach(function (n) {
if (_this6.options.ns.indexOf(n) < 0) _this6.options.ns.push(n);
});
this.loadResources(function (err) {
deferred.resolve();
if (callback) callback(err);
});
return deferred;
}
}, {
key: "loadLanguages",
value: function loadLanguages(lngs, callback) {
var deferred = defer();
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) {
if (callback) callback();
return Promise.resolve();
}
this.options.preload = preloaded.concat(newLngs);
this.loadResources(function (err) {
deferred.resolve();
if (callback) callback(err);
});
return deferred;
}
}, {
key: "dir",
value: function dir(lng) {
if (!lng) lng = this.languages && this.languages.length > 0 ? this.languages[0] : 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';
}
/* eslint class-methods-use-this: 0 */
}, {
key: "createInstance",
value: function createInstance() {
var options = arguments.length > 0 && arguments[0] !== undefined ? arguments[0] : {};
var callback = arguments.length > 1 ? arguments[1] : undefined;
return new I18n(options, callback);
}
}, {
key: "cloneInstance",
value: function cloneInstance() {
var _this7 = this;
var options = arguments.length > 0 && arguments[0] !== undefined ? arguments[0] : {};
var callback = arguments.length > 1 && arguments[1] !== undefined ? arguments[1] : noop;
var mergedOptions = _objectSpread({}, this.options, options, {
isClone: true
});
var clone = new I18n(mergedOptions);
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 _len4 = arguments.length, args = new Array(_len4 > 1 ? _len4 - 1 : 0), _key4 = 1; _key4 < _len4; _key4++) {
args[_key4 - 1] = arguments[_key4];
}
clone.emit.apply(clone, [event].concat(args));
});
clone.init(mergedOptions, callback);
clone.translator.options = clone.options; // sync options
return clone;
}
}]);
return I18n;
}(EventEmitter);
var i18next = new I18n();
return i18next;
}));