VulpesOS/gaia/shared/js/intl/l20n-service.js
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var _createClass = (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); } } return function (Constructor, protoProps, staticProps) { if (protoProps) defineProperties(Constructor.prototype, protoProps); if (staticProps) defineProperties(Constructor, staticProps); return Constructor; }; })();
function _classCallCheck(instance, Constructor) { if (!(instance instanceof Constructor)) { throw new TypeError('Cannot call a class as a function'); } }
(function () {
'use strict';
const Service = bridge.service;
const channel = new BroadcastChannel('l20n-channel');
function broadcast(type, data) {
return this.service.broadcast(type, data);
}
function L10nError(message, id, lang) {
this.name = 'L10nError';
this.message = message;
this.id = id;
this.lang = lang;
}
L10nError.prototype = Object.create(Error.prototype);
L10nError.prototype.constructor = L10nError;
function load(type, url) {
return new Promise(function (resolve, reject) {
const xhr = new XMLHttpRequest();
if (xhr.overrideMimeType) {
xhr.overrideMimeType(type);
}
xhr.open('GET', url, true);
if (type === 'application/json') {
xhr.responseType = 'json';
}
xhr.addEventListener('load', function io_onload(e) {
if (e.target.status === 200 || e.target.status === 0) {
// Sinon.JS's FakeXHR doesn't have the response property
resolve(e.target.response || e.target.responseText);
} else {
reject(new L10nError('Not found: ' + url));
}
});
xhr.addEventListener('error', reject);
xhr.addEventListener('timeout', reject);
// the app: protocol throws on 404, see https://bugzil.la/827243
try {
xhr.send(null);
} catch (e) {
if (e.name === 'NS_ERROR_FILE_NOT_FOUND') {
// the app: protocol throws on 404, see https://bugzil.la/827243
reject(new L10nError('Not found: ' + url));
} else {
throw e;
}
}
});
}
const io = {
extra: function (code, ver, path, type) {
return navigator.mozApps.getLocalizationResource(code, ver, path, type);
},
app: function (code, ver, path, type) {
switch (type) {
case 'text':
return load('text/plain', path);
case 'json':
return load('application/json', path);
default:
throw new L10nError('Unknown file type: ' + type);
}
}
};
function fetchResource(res, { code, src, ver }) {
const url = res.replace('{locale}', code);
const type = res.endsWith('.json') ? 'json' : 'text';
return io[src](code, ver, url, type);
}
const KNOWN_MACROS = ['plural'];
const MAX_PLACEABLE_LENGTH = 2500;
// Unicode bidi isolation characters
const FSI = '⁨';
const PDI = '⁩';
const resolutionChain = new WeakSet();
function format(ctx, lang, args, entity) {
if (typeof entity === 'string') {
return [{}, entity];
}
if (resolutionChain.has(entity)) {
throw new L10nError('Cyclic reference detected');
}
resolutionChain.add(entity);
let rv;
// if format fails, we want the exception to bubble up and stop the whole
// resolving process; however, we still need to remove the entity from the
// resolution chain
try {
rv = resolveValue({}, ctx, lang, args, entity.value, entity.index);
} finally {
resolutionChain.delete(entity);
}
return rv;
}
function resolveIdentifier(ctx, lang, args, id) {
if (KNOWN_MACROS.indexOf(id) > -1) {
return [{}, ctx._getMacro(lang, id)];
}
if (args && args.hasOwnProperty(id)) {
if (typeof args[id] === 'string' || typeof args[id] === 'number' && !isNaN(args[id])) {
return [{}, args[id]];
} else {
throw new L10nError('Arg must be a string or a number: ' + id);
}
}
// XXX: special case for Node.js where still:
// '__proto__' in Object.create(null) => true
if (id === '__proto__') {
throw new L10nError('Illegal id: ' + id);
}
const entity = ctx._getEntity(lang, id);
if (entity) {
return format(ctx, lang, args, entity);
}
throw new L10nError('Unknown reference: ' + id);
}
function subPlaceable(locals, ctx, lang, args, id) {
let newLocals, value;
try {
[newLocals, value] = resolveIdentifier(ctx, lang, args, id);
} catch (err) {
return [{ error: err }, FSI + '{{ ' + id + ' }}' + PDI];
}
if (typeof value === 'number') {
const formatter = ctx._getNumberFormatter(lang);
return [newLocals, formatter.format(value)];
}
if (typeof value === 'string') {
// prevent Billion Laughs attacks
if (value.length >= MAX_PLACEABLE_LENGTH) {
throw new L10nError('Too many characters in placeable (' + value.length + ', max allowed is ' + MAX_PLACEABLE_LENGTH + ')');
}
return [newLocals, FSI + value + PDI];
}
return [{}, FSI + '{{ ' + id + ' }}' + PDI];
}
function interpolate(locals, ctx, lang, args, arr) {
return arr.reduce(function ([localsSeq, valueSeq], cur) {
if (typeof cur === 'string') {
return [localsSeq, valueSeq + cur];
} else {
const [, value] = subPlaceable(locals, ctx, lang, args, cur.name);
// wrap the substitution in bidi isolate characters
return [localsSeq, valueSeq + value];
}
}, [locals, '']);
}
function resolveSelector(ctx, lang, args, expr, index) {
//XXX: Dehardcode!!!
let selectorName;
if (index[0].type === 'call' && index[0].expr.type === 'prop' && index[0].expr.expr.name === 'cldr') {
selectorName = 'plural';
} else {
selectorName = index[0].name;
}
const selector = resolveIdentifier(ctx, lang, args, selectorName)[1];
if (typeof selector !== 'function') {
// selector is a simple reference to an entity or args
return selector;
}
const argValue = index[0].args ? resolveIdentifier(ctx, lang, args, index[0].args[0].name)[1] : undefined;
if (selectorName === 'plural') {
// special cases for zero, one, two if they are defined on the hash
if (argValue === 0 && 'zero' in expr) {
return 'zero';
}
if (argValue === 1 && 'one' in expr) {
return 'one';
}
if (argValue === 2 && 'two' in expr) {
return 'two';
}
}
return selector(argValue);
}
function resolveValue(locals, ctx, lang, args, expr, index) {
if (!expr) {
return [locals, expr];
}
if (typeof expr === 'string' || typeof expr === 'boolean' || typeof expr === 'number') {
return [locals, expr];
}
if (Array.isArray(expr)) {
return interpolate(locals, ctx, lang, args, expr);
}
// otherwise, it's a dict
if (index) {
// try to use the index in order to select the right dict member
const selector = resolveSelector(ctx, lang, args, expr, index);
if (selector in expr) {
return resolveValue(locals, ctx, lang, args, expr[selector]);
}
}
// if there was no index or no selector was found, try the default
// XXX 'other' is an artifact from Gaia
const defaultKey = expr.__default || 'other';
if (defaultKey in expr) {
return resolveValue(locals, ctx, lang, args, expr[defaultKey]);
}
throw new L10nError('Unresolvable value');
}
const locales2rules = {
'af': 3,
'ak': 4,
'am': 4,
'ar': 1,
'asa': 3,
'az': 0,
'be': 11,
'bem': 3,
'bez': 3,
'bg': 3,
'bh': 4,
'bm': 0,
'bn': 3,
'bo': 0,
'br': 20,
'brx': 3,
'bs': 11,
'ca': 3,
'cgg': 3,
'chr': 3,
'cs': 12,
'cy': 17,
'da': 3,
'de': 3,
'dv': 3,
'dz': 0,
'ee': 3,
'el': 3,
'en': 3,
'eo': 3,
'es': 3,
'et': 3,
'eu': 3,
'fa': 0,
'ff': 5,
'fi': 3,
'fil': 4,
'fo': 3,
'fr': 5,
'fur': 3,
'fy': 3,
'ga': 8,
'gd': 24,
'gl': 3,
'gsw': 3,
'gu': 3,
'guw': 4,
'gv': 23,
'ha': 3,
'haw': 3,
'he': 2,
'hi': 4,
'hr': 11,
'hu': 0,
'id': 0,
'ig': 0,
'ii': 0,
'is': 3,
'it': 3,
'iu': 7,
'ja': 0,
'jmc': 3,
'jv': 0,
'ka': 0,
'kab': 5,
'kaj': 3,
'kcg': 3,
'kde': 0,
'kea': 0,
'kk': 3,
'kl': 3,
'km': 0,
'kn': 0,
'ko': 0,
'ksb': 3,
'ksh': 21,
'ku': 3,
'kw': 7,
'lag': 18,
'lb': 3,
'lg': 3,
'ln': 4,
'lo': 0,
'lt': 10,
'lv': 6,
'mas': 3,
'mg': 4,
'mk': 16,
'ml': 3,
'mn': 3,
'mo': 9,
'mr': 3,
'ms': 0,
'mt': 15,
'my': 0,
'nah': 3,
'naq': 7,
'nb': 3,
'nd': 3,
'ne': 3,
'nl': 3,
'nn': 3,
'no': 3,
'nr': 3,
'nso': 4,
'ny': 3,
'nyn': 3,
'om': 3,
'or': 3,
'pa': 3,
'pap': 3,
'pl': 13,
'ps': 3,
'pt': 3,
'rm': 3,
'ro': 9,
'rof': 3,
'ru': 11,
'rwk': 3,
'sah': 0,
'saq': 3,
'se': 7,
'seh': 3,
'ses': 0,
'sg': 0,
'sh': 11,
'shi': 19,
'sk': 12,
'sl': 14,
'sma': 7,
'smi': 7,
'smj': 7,
'smn': 7,
'sms': 7,
'sn': 3,
'so': 3,
'sq': 3,
'sr': 11,
'ss': 3,
'ssy': 3,
'st': 3,
'sv': 3,
'sw': 3,
'syr': 3,
'ta': 3,
'te': 3,
'teo': 3,
'th': 0,
'ti': 4,
'tig': 3,
'tk': 3,
'tl': 4,
'tn': 3,
'to': 0,
'tr': 0,
'ts': 3,
'tzm': 22,
'uk': 11,
'ur': 3,
've': 3,
'vi': 0,
'vun': 3,
'wa': 4,
'wae': 3,
'wo': 0,
'xh': 3,
'xog': 3,
'yo': 0,
'zh': 0,
'zu': 3
};
// utility functions for plural rules methods
function isIn(n, list) {
return list.indexOf(n) !== -1;
}
function isBetween(n, start, end) {
return typeof n === typeof start && start <= n && n <= end;
}
// list of all plural rules methods:
// map an integer to the plural form name to use
const pluralRules = {
'0': function () {
return 'other';
},
'1': function (n) {
if (isBetween(n % 100, 3, 10)) {
return 'few';
}
if (n === 0) {
return 'zero';
}
if (isBetween(n % 100, 11, 99)) {
return 'many';
}
if (n === 2) {
return 'two';
}
if (n === 1) {
return 'one';
}
return 'other';
},
'2': function (n) {
if (n !== 0 && n % 10 === 0) {
return 'many';
}
if (n === 2) {
return 'two';
}
if (n === 1) {
return 'one';
}
return 'other';
},
'3': function (n) {
if (n === 1) {
return 'one';
}
return 'other';
},
'4': function (n) {
if (isBetween(n, 0, 1)) {
return 'one';
}
return 'other';
},
'5': function (n) {
if (isBetween(n, 0, 2) && n !== 2) {
return 'one';
}
return 'other';
},
'6': function (n) {
if (n === 0) {
return 'zero';
}
if (n % 10 === 1 && n % 100 !== 11) {
return 'one';
}
return 'other';
},
'7': function (n) {
if (n === 2) {
return 'two';
}
if (n === 1) {
return 'one';
}
return 'other';
},
'8': function (n) {
if (isBetween(n, 3, 6)) {
return 'few';
}
if (isBetween(n, 7, 10)) {
return 'many';
}
if (n === 2) {
return 'two';
}
if (n === 1) {
return 'one';
}
return 'other';
},
'9': function (n) {
if (n === 0 || n !== 1 && isBetween(n % 100, 1, 19)) {
return 'few';
}
if (n === 1) {
return 'one';
}
return 'other';
},
'10': function (n) {
if (isBetween(n % 10, 2, 9) && !isBetween(n % 100, 11, 19)) {
return 'few';
}
if (n % 10 === 1 && !isBetween(n % 100, 11, 19)) {
return 'one';
}
return 'other';
},
'11': function (n) {
if (isBetween(n % 10, 2, 4) && !isBetween(n % 100, 12, 14)) {
return 'few';
}
if (n % 10 === 0 || isBetween(n % 10, 5, 9) || isBetween(n % 100, 11, 14)) {
return 'many';
}
if (n % 10 === 1 && n % 100 !== 11) {
return 'one';
}
return 'other';
},
'12': function (n) {
if (isBetween(n, 2, 4)) {
return 'few';
}
if (n === 1) {
return 'one';
}
return 'other';
},
'13': function (n) {
if (isBetween(n % 10, 2, 4) && !isBetween(n % 100, 12, 14)) {
return 'few';
}
if (n !== 1 && isBetween(n % 10, 0, 1) || isBetween(n % 10, 5, 9) || isBetween(n % 100, 12, 14)) {
return 'many';
}
if (n === 1) {
return 'one';
}
return 'other';
},
'14': function (n) {
if (isBetween(n % 100, 3, 4)) {
return 'few';
}
if (n % 100 === 2) {
return 'two';
}
if (n % 100 === 1) {
return 'one';
}
return 'other';
},
'15': function (n) {
if (n === 0 || isBetween(n % 100, 2, 10)) {
return 'few';
}
if (isBetween(n % 100, 11, 19)) {
return 'many';
}
if (n === 1) {
return 'one';
}
return 'other';
},
'16': function (n) {
if (n % 10 === 1 && n !== 11) {
return 'one';
}
return 'other';
},
'17': function (n) {
if (n === 3) {
return 'few';
}
if (n === 0) {
return 'zero';
}
if (n === 6) {
return 'many';
}
if (n === 2) {
return 'two';
}
if (n === 1) {
return 'one';
}
return 'other';
},
'18': function (n) {
if (n === 0) {
return 'zero';
}
if (isBetween(n, 0, 2) && n !== 0 && n !== 2) {
return 'one';
}
return 'other';
},
'19': function (n) {
if (isBetween(n, 2, 10)) {
return 'few';
}
if (isBetween(n, 0, 1)) {
return 'one';
}
return 'other';
},
'20': function (n) {
if ((isBetween(n % 10, 3, 4) || n % 10 === 9) && !(isBetween(n % 100, 10, 19) || isBetween(n % 100, 70, 79) || isBetween(n % 100, 90, 99))) {
return 'few';
}
if (n % 1000000 === 0 && n !== 0) {
return 'many';
}
if (n % 10 === 2 && !isIn(n % 100, [12, 72, 92])) {
return 'two';
}
if (n % 10 === 1 && !isIn(n % 100, [11, 71, 91])) {
return 'one';
}
return 'other';
},
'21': function (n) {
if (n === 0) {
return 'zero';
}
if (n === 1) {
return 'one';
}
return 'other';
},
'22': function (n) {
if (isBetween(n, 0, 1) || isBetween(n, 11, 99)) {
return 'one';
}
return 'other';
},
'23': function (n) {
if (isBetween(n % 10, 1, 2) || n % 20 === 0) {
return 'one';
}
return 'other';
},
'24': function (n) {
if (isBetween(n, 3, 10) || isBetween(n, 13, 19)) {
return 'few';
}
if (isIn(n, [2, 12])) {
return 'two';
}
if (isIn(n, [1, 11])) {
return 'one';
}
return 'other';
}
};
function getPluralRule(code) {
// return a function that gives the plural form name for a given integer
const index = locales2rules[code.replace(/-.*$/, '')];
if (!(index in pluralRules)) {
return function () {
return 'other';
};
}
return pluralRules[index];
}
// Safari 9 and iOS 9 does not support Intl
const L20nIntl = typeof Intl !== 'undefined' ? Intl : {
NumberFormat: function () {
return {
format: function (v) {
return v;
}
};
}
};
let Context = (function () {
function Context(env, langs, resIds) {
_classCallCheck(this, Context);
this.langs = langs;
this.resIds = resIds;
this.env = env;
this.emit = (type, evt) => env.emit(type, evt, this);
}
_createClass(Context, [{
key: '_formatTuple',
value: function _formatTuple(lang, args, entity, id, key) {
try {
return format(this, lang, args, entity);
} catch (err) {
err.id = key ? id + '::' + key : id;
err.lang = lang;
this.emit('resolveerror', err);
return [{ error: err }, err.id];
}
}
}, {
key: '_formatEntity',
value: function _formatEntity(lang, args, entity, id) {
const [, value] = this._formatTuple(lang, args, entity, id);
const formatted = {
value,
attrs: null
};
if (entity.attrs) {
formatted.attrs = Object.create(null);
for (let key in entity.attrs) {
/* jshint -W089 */
const [, attrValue] = this._formatTuple(lang, args, entity.attrs[key], id, key);
formatted.attrs[key] = attrValue;
}
}
return formatted;
}
}, {
key: '_formatValue',
value: function _formatValue(lang, args, entity, id) {
return this._formatTuple(lang, args, entity, id)[1];
}
}, {
key: 'fetch',
value: function fetch(langs = this.langs) {
if (langs.length === 0) {
return Promise.resolve(langs);
}
return Promise.all(this.resIds.map(resId => this.env._getResource(langs[0], resId))).then(() => langs);
}
}, {
key: '_resolve',
value: function _resolve(langs, keys, formatter, prevResolved) {
const lang = langs[0];
if (!lang) {
return reportMissing.call(this, keys, formatter, prevResolved);
}
let hasUnresolved = false;
const resolved = keys.map((key, i) => {
if (prevResolved && prevResolved[i] !== undefined) {
return prevResolved[i];
}
const [id, args] = Array.isArray(key) ? key : [key, undefined];
const entity = this._getEntity(lang, id);
if (entity) {
return formatter.call(this, lang, args, entity, id);
}
this.emit('notfounderror', new L10nError('"' + id + '"' + ' not found in ' + lang.code, id, lang));
hasUnresolved = true;
});
if (!hasUnresolved) {
return resolved;
}
return this.fetch(langs.slice(1)).then(nextLangs => this._resolve(nextLangs, keys, formatter, resolved));
}
}, {
key: 'formatEntities',
value: function formatEntities(...keys) {
return this.fetch().then(langs => this._resolve(langs, keys, this._formatEntity));
}
}, {
key: 'formatValues',
value: function formatValues(...keys) {
return this.fetch().then(langs => this._resolve(langs, keys, this._formatValue));
}
}, {
key: '_getEntity',
value: function _getEntity(lang, id) {
const cache = this.env.resCache;
// Look for `id` in every resource in order.
for (let i = 0, resId; resId = this.resIds[i]; i++) {
const resource = cache.get(resId + lang.code + lang.src);
if (resource instanceof L10nError) {
continue;
}
if (id in resource) {
return resource[id];
}
}
return undefined;
}
}, {
key: '_getNumberFormatter',
value: function _getNumberFormatter(lang) {
if (!this.env.numberFormatters) {
this.env.numberFormatters = new Map();
}
if (!this.env.numberFormatters.has(lang)) {
const formatter = L20nIntl.NumberFormat(lang);
this.env.numberFormatters.set(lang, formatter);
return formatter;
}
return this.env.numberFormatters.get(lang);
}
}, {
key: '_getMacro',
// XXX in the future macros will be stored in localization resources together
// with regular entities and this method will not be needed anymore
value: function _getMacro(lang, id) {
switch (id) {
case 'plural':
return getPluralRule(lang.code);
default:
return undefined;
}
}
}]);
return Context;
})();
function reportMissing(keys, formatter, resolved) {
const missingIds = new Set();
keys.forEach((key, i) => {
if (resolved && resolved[i] !== undefined) {
return;
}
const id = Array.isArray(key) ? key[0] : key;
missingIds.add(id);
resolved[i] = formatter === this._formatValue ? id : { value: id, attrs: null };
});
this.emit('notfounderror', new L10nError('"' + Array.from(missingIds).join(', ') + '"' + ' not found in any language', missingIds));
return resolved;
}
var MAX_PLACEABLES = 100;
var PropertiesParser = {
patterns: null,
entryIds: null,
emit: null,
init: function () {
this.patterns = {
comment: /^\s*#|^\s*$/,
entity: /^([^=\s]+)\s*=\s*(.*)$/,
multiline: /[^\\]\\$/,
index: /\{\[\s*(\w+)(?:\(([^\)]*)\))?\s*\]\}/i,
unicode: /\\u([0-9a-fA-F]{1,4})/g,
entries: /[^\r\n]+/g,
controlChars: /\\([\\\n\r\t\b\f\{\}\"\'])/g,
placeables: /\{\{\s*([^\s]*?)\s*\}\}/
};
},
parse: function (emit, source) {
if (!this.patterns) {
this.init();
}
this.emit = emit;
var entries = {};
var lines = source.match(this.patterns.entries);
if (!lines) {
return entries;
}
for (var i = 0; i < lines.length; i++) {
var line = lines[i];
if (this.patterns.comment.test(line)) {
continue;
}
while (this.patterns.multiline.test(line) && i < lines.length) {
line = line.slice(0, -1) + lines[++i].trim();
}
var entityMatch = line.match(this.patterns.entity);
if (entityMatch) {
try {
this.parseEntity(entityMatch[1], entityMatch[2], entries);
} catch (e) {
if (!this.emit) {
throw e;
}
}
}
}
return entries;
},
parseEntity: function (id, value, entries) {
var name, key;
var pos = id.indexOf('[');
if (pos !== -1) {
name = id.substr(0, pos);
key = id.substring(pos + 1, id.length - 1);
} else {
name = id;
key = null;
}
var nameElements = name.split('.');
if (nameElements.length > 2) {
throw this.error('Error in ID: "' + name + '".' + ' Nested attributes are not supported.');
}
var attr;
if (nameElements.length > 1) {
name = nameElements[0];
attr = nameElements[1];
if (attr[0] === '$') {
throw this.error('Attribute can\'t start with "$"');
}
} else {
attr = null;
}
this.setEntityValue(name, attr, key, this.unescapeString(value), entries);
},
setEntityValue: function (id, attr, key, rawValue, entries) {
var value = rawValue.indexOf('{{') > -1 ? this.parseString(rawValue) : rawValue;
var isSimpleValue = typeof value === 'string';
var root = entries;
var isSimpleNode = typeof entries[id] === 'string';
if (!entries[id] && (attr || key || !isSimpleValue)) {
entries[id] = Object.create(null);
isSimpleNode = false;
}
if (attr) {
if (isSimpleNode) {
const val = entries[id];
entries[id] = Object.create(null);
entries[id].value = val;
}
if (!entries[id].attrs) {
entries[id].attrs = Object.create(null);
}
if (!entries[id].attrs && !isSimpleValue) {
entries[id].attrs[attr] = Object.create(null);
}
root = entries[id].attrs;
id = attr;
}
if (key) {
isSimpleNode = false;
if (typeof root[id] === 'string') {
const val = root[id];
root[id] = Object.create(null);
root[id].index = this.parseIndex(val);
root[id].value = Object.create(null);
}
root = root[id].value;
id = key;
isSimpleValue = true;
}
if (isSimpleValue) {
if (id in root) {
throw this.error('Duplicated id: ' + id);
}
root[id] = value;
} else {
if (!root[id]) {
root[id] = Object.create(null);
}
root[id].value = value;
}
},
parseString: function (str) {
var chunks = str.split(this.patterns.placeables);
var complexStr = [];
var len = chunks.length;
var placeablesCount = (len - 1) / 2;
if (placeablesCount >= MAX_PLACEABLES) {
throw this.error('Too many placeables (' + placeablesCount + ', max allowed is ' + MAX_PLACEABLES + ')');
}
for (var i = 0; i < chunks.length; i++) {
if (chunks[i].length === 0) {
continue;
}
if (i % 2 === 1) {
complexStr.push({ type: 'idOrVar', name: chunks[i] });
} else {
complexStr.push(chunks[i]);
}
}
return complexStr;
},
unescapeString: function (str) {
if (str.lastIndexOf('\\') !== -1) {
str = str.replace(this.patterns.controlChars, '$1');
}
return str.replace(this.patterns.unicode, function (match, token) {
return String.fromCodePoint(parseInt(token, 16));
});
},
parseIndex: function (str) {
var match = str.match(this.patterns.index);
if (!match) {
throw new L10nError('Malformed index');
}
if (match[2]) {
return [{
type: 'call',
expr: {
type: 'prop',
expr: {
type: 'glob',
name: 'cldr'
},
prop: 'plural',
cmpt: false
}, args: [{
type: 'idOrVar',
name: match[2]
}]
}];
} else {
return [{ type: 'idOrVar', name: match[1] }];
}
},
error: function (msg, type = 'parsererror') {
const err = new L10nError(msg);
if (this.emit) {
this.emit(type, err);
}
return err;
}
};
const MAX_PLACEABLES$1 = 100;
var L20nParser = {
parse: function (emit, string) {
this._source = string;
this._index = 0;
this._length = string.length;
this.entries = Object.create(null);
this.emit = emit;
return this.getResource();
},
getResource: function () {
this.getWS();
while (this._index < this._length) {
try {
this.getEntry();
} catch (e) {
if (e instanceof L10nError) {
// we want to recover, but we don't need it in entries
this.getJunkEntry();
if (!this.emit) {
throw e;
}
} else {
throw e;
}
}
if (this._index < this._length) {
this.getWS();
}
}
return this.entries;
},
getEntry: function () {
if (this._source[this._index] === '<') {
++this._index;
const id = this.getIdentifier();
if (this._source[this._index] === '[') {
++this._index;
return this.getEntity(id, this.getItemList(this.getExpression, ']'));
}
return this.getEntity(id);
}
if (this._source.startsWith('/*', this._index)) {
return this.getComment();
}
throw this.error('Invalid entry');
},
getEntity: function (id, index) {
if (!this.getRequiredWS()) {
throw this.error('Expected white space');
}
const ch = this._source[this._index];
const hasIndex = index !== undefined;
const value = this.getValue(ch, hasIndex, hasIndex);
let attrs;
if (value === undefined) {
if (ch === '>') {
throw this.error('Expected ">"');
}
attrs = this.getAttributes();
} else {
const ws1 = this.getRequiredWS();
if (this._source[this._index] !== '>') {
if (!ws1) {
throw this.error('Expected ">"');
}
attrs = this.getAttributes();
}
}
// skip '>'
++this._index;
if (id in this.entries) {
throw this.error('Duplicate entry ID "' + id, 'duplicateerror');
}
if (!attrs && !index && typeof value === 'string') {
this.entries[id] = value;
} else {
this.entries[id] = {
value,
attrs,
index
};
}
},
getValue: function (ch = this._source[this._index], index = false, required = true) {
switch (ch) {
case '\'':
case '"':
return this.getString(ch, 1);
case '{':
return this.getHash(index);
}
if (required) {
throw this.error('Unknown value type');
}
return;
},
getWS: function () {
let cc = this._source.charCodeAt(this._index);
// space, \n, \t, \r
while (cc === 32 || cc === 10 || cc === 9 || cc === 13) {
cc = this._source.charCodeAt(++this._index);
}
},
getRequiredWS: function () {
const pos = this._index;
let cc = this._source.charCodeAt(pos);
// space, \n, \t, \r
while (cc === 32 || cc === 10 || cc === 9 || cc === 13) {
cc = this._source.charCodeAt(++this._index);
}
return this._index !== pos;
},
getIdentifier: function () {
const start = this._index;
let cc = this._source.charCodeAt(this._index);
if (cc >= 97 && cc <= 122 || cc >= 65 && cc <= 90 || // A-Z
cc === 95) {
// _
cc = this._source.charCodeAt(++this._index);
} else {
throw this.error('Identifier has to start with [a-zA-Z_]');
}
while (cc >= 97 && cc <= 122 || cc >= 65 && cc <= 90 || cc >= 48 && cc <= 57 || // 0-9
cc === 95) {
// _
cc = this._source.charCodeAt(++this._index);
}
return this._source.slice(start, this._index);
},
getUnicodeChar: function () {
for (let i = 0; i < 4; i++) {
let cc = this._source.charCodeAt(++this._index);
if (cc > 96 && cc < 103 || cc > 64 && cc < 71 || cc > 47 && cc < 58) {
// 0-9
continue;
}
throw this.error('Illegal unicode escape sequence');
}
this._index++;
return String.fromCharCode(parseInt(this._source.slice(this._index - 4, this._index), 16));
},
stringRe: /"|'|{{|\\/g,
getString: function (opchar, opcharLen) {
const body = [];
let placeables = 0;
this._index += opcharLen;
const start = this._index;
let bufStart = start;
let buf = '';
while (true) {
this.stringRe.lastIndex = this._index;
const match = this.stringRe.exec(this._source);
if (!match) {
throw this.error('Unclosed string literal');
}
if (match[0] === '"' || match[0] === '\'') {
if (match[0] !== opchar) {
this._index += opcharLen;
continue;
}
this._index = match.index + opcharLen;
break;
}
if (match[0] === '{{') {
if (placeables > MAX_PLACEABLES$1 - 1) {
throw this.error('Too many placeables, maximum allowed is ' + MAX_PLACEABLES$1);
}
placeables++;
if (match.index > bufStart || buf.length > 0) {
body.push(buf + this._source.slice(bufStart, match.index));
buf = '';
}
this._index = match.index + 2;
this.getWS();
body.push(this.getExpression());
this.getWS();
this._index += 2;
bufStart = this._index;
continue;
}
if (match[0] === '\\') {
this._index = match.index + 1;
const ch2 = this._source[this._index];
if (ch2 === 'u') {
buf += this._source.slice(bufStart, match.index) + this.getUnicodeChar();
} else if (ch2 === opchar || ch2 === '\\') {
buf += this._source.slice(bufStart, match.index) + ch2;
this._index++;
} else if (this._source.startsWith('{{', this._index)) {
buf += this._source.slice(bufStart, match.index) + '{{';
this._index += 2;
} else {
throw this.error('Illegal escape sequence');
}
bufStart = this._index;
}
}
if (body.length === 0) {
return buf + this._source.slice(bufStart, this._index - opcharLen);
}
if (this._index - opcharLen > bufStart || buf.length > 0) {
body.push(buf + this._source.slice(bufStart, this._index - opcharLen));
}
return body;
},
getAttributes: function () {
const attrs = Object.create(null);
while (true) {
this.getAttribute(attrs);
const ws1 = this.getRequiredWS();
const ch = this._source.charAt(this._index);
if (ch === '>') {
break;
} else if (!ws1) {
throw this.error('Expected ">"');
}
}
return attrs;
},
getAttribute: function (attrs) {
const key = this.getIdentifier();
let index;
if (this._source[this._index] === '[') {
++this._index;
this.getWS();
index = this.getItemList(this.getExpression, ']');
}
this.getWS();
if (this._source[this._index] !== ':') {
throw this.error('Expected ":"');
}
++this._index;
this.getWS();
const hasIndex = index !== undefined;
const value = this.getValue(undefined, hasIndex);
if (key in attrs) {
throw this.error('Duplicate attribute "' + key, 'duplicateerror');
}
if (!index && typeof value === 'string') {
attrs[key] = value;
} else {
attrs[key] = {
value,
index
};
}
},
getHash: function (index) {
const items = Object.create(null);
++this._index;
this.getWS();
let defKey;
while (true) {
const [key, value, def] = this.getHashItem();
items[key] = value;
if (def) {
if (defKey) {
throw this.error('Default item redefinition forbidden');
}
defKey = key;
}
this.getWS();
const comma = this._source[this._index] === ',';
if (comma) {
++this._index;
this.getWS();
}
if (this._source[this._index] === '}') {
++this._index;
break;
}
if (!comma) {
throw this.error('Expected "}"');
}
}
if (defKey) {
items.__default = defKey;
} else if (!index) {
throw this.error('Unresolvable Hash Value');
}
return items;
},
getHashItem: function () {
let defItem = false;
if (this._source[this._index] === '*') {
++this._index;
defItem = true;
}
const key = this.getIdentifier();
this.getWS();
if (this._source[this._index] !== ':') {
throw this.error('Expected ":"');
}
++this._index;
this.getWS();
return [key, this.getValue(), defItem];
},
getComment: function () {
this._index += 2;
const start = this._index;
const end = this._source.indexOf('*/', start);
if (end === -1) {
throw this.error('Comment without a closing tag');
}
this._index = end + 2;
},
getExpression: function () {
let exp = this.getPrimaryExpression();
while (true) {
let ch = this._source[this._index];
if (ch === '.' || ch === '[') {
++this._index;
exp = this.getPropertyExpression(exp, ch === '[');
} else if (ch === '(') {
++this._index;
exp = this.getCallExpression(exp);
} else {
break;
}
}
return exp;
},
getPropertyExpression: function (idref, computed) {
let exp;
if (computed) {
this.getWS();
exp = this.getExpression();
this.getWS();
if (this._source[this._index] !== ']') {
throw this.error('Expected "]"');
}
++this._index;
} else {
exp = this.getIdentifier();
}
return {
type: 'prop',
expr: idref,
prop: exp,
cmpt: computed
};
},
getCallExpression: function (callee) {
this.getWS();
return {
type: 'call',
expr: callee,
args: this.getItemList(this.getExpression, ')')
};
},
getPrimaryExpression: function () {
const ch = this._source[this._index];
switch (ch) {
case '$':
++this._index;
return {
type: 'var',
name: this.getIdentifier()
};
case '@':
++this._index;
return {
type: 'glob',
name: this.getIdentifier()
};
default:
return {
type: 'id',
name: this.getIdentifier()
};
}
},
getItemList: function (callback, closeChar) {
const items = [];
let closed = false;
this.getWS();
if (this._source[this._index] === closeChar) {
++this._index;
closed = true;
}
while (!closed) {
items.push(callback.call(this));
this.getWS();
let ch = this._source.charAt(this._index);
switch (ch) {
case ',':
++this._index;
this.getWS();
break;
case closeChar:
++this._index;
closed = true;
break;
default:
throw this.error('Expected "," or "' + closeChar + '"');
}
}
return items;
},
getJunkEntry: function () {
const pos = this._index;
let nextEntity = this._source.indexOf('<', pos);
let nextComment = this._source.indexOf('/*', pos);
if (nextEntity === -1) {
nextEntity = this._length;
}
if (nextComment === -1) {
nextComment = this._length;
}
let nextEntry = Math.min(nextEntity, nextComment);
this._index = nextEntry;
},
error: function (message, type = 'parsererror') {
const pos = this._index;
let start = this._source.lastIndexOf('<', pos - 1);
const lastClose = this._source.lastIndexOf('>', pos - 1);
start = lastClose > start ? lastClose + 1 : start;
const context = this._source.slice(start, pos + 10);
const msg = message + ' at pos ' + pos + ': `' + context + '`';
const err = new L10nError(msg);
if (this.emit) {
this.emit(type, err);
}
return err;
}
};
// Walk an entry node searching for content leaves
function walkEntry(entry, fn) {
if (typeof entry === 'string') {
return fn(entry);
}
const newEntry = Object.create(null);
if (entry.value) {
newEntry.value = walkValue(entry.value, fn);
}
if (entry.index) {
newEntry.index = entry.index;
}
if (entry.attrs) {
newEntry.attrs = Object.create(null);
for (let key in entry.attrs) {
newEntry.attrs[key] = walkEntry(entry.attrs[key], fn);
}
}
return newEntry;
}
function walkValue(value, fn) {
if (typeof value === 'string') {
return fn(value);
}
// skip expressions in placeables
if (value.type) {
return value;
}
const newValue = Array.isArray(value) ? [] : Object.create(null);
const keys = Object.keys(value);
for (let i = 0, key; key = keys[i]; i++) {
newValue[key] = walkValue(value[key], fn);
}
return newValue;
}
/* Pseudolocalizations
*
* pseudo is a dict of strategies to be used to modify the English
* context in order to create pseudolocalizations. These can be used by
* developers to test the localizability of their code without having to
* actually speak a foreign language.
*
* Currently, the following pseudolocales are supported:
*
* fr-x-psaccent - Ȧȧƈƈḗḗƞŧḗḗḓ Ḗḗƞɠŀīīşħ
*
* In Accented English all English letters are replaced by accented
* Unicode counterparts which don't impair the readability of the content.
* This allows developers to quickly test if any given string is being
* correctly displayed in its 'translated' form. Additionally, simple
* heuristics are used to make certain words longer to better simulate the
* experience of international users.
*
* ar-x-psbidi - ɥsıʅƃuƎ ıpıԐ
*
* Bidi English is a fake RTL locale. All words are surrounded by
* Unicode formatting marks forcing the RTL directionality of characters.
* In addition, to make the reversed text easier to read, individual
* letters are flipped.
*
* Note: The name above is hardcoded to be RTL in case code editors have
* trouble with the RLO and PDF Unicode marks. In reality, it should be
* surrounded by those marks as well.
*
* See https://bugzil.la/900182 for more information.
*
*/
function createGetter(id, name) {
let _pseudo = null;
return function getPseudo() {
if (_pseudo) {
return _pseudo;
}
const reAlphas = /[a-zA-Z]/g;
const reVowels = /[aeiouAEIOU]/g;
const reWords = /[^\W0-9_]+/g;
// strftime tokens (%a, %Eb), template {vars}, HTML entities (&#x202a;)
// and HTML tags.
const reExcluded = /(%[EO]?\w|\{\s*.+?\s*\}|&[#\w]+;|<\s*.+?\s*>)/;
const charMaps = {
'fr-x-psaccent': 'ȦƁƇḒḖƑƓĦĪĴĶĿḾȠǾƤɊŘŞŦŬṼẆẊẎẐ[\\]^_`ȧƀƈḓḗƒɠħīĵķŀḿƞǿƥɋřşŧŭṽẇẋẏẑ',
'ar-x-psbidi':
// XXX Use pɟפ˥ʎ as replacements for ᗡℲ⅁⅂⅄. https://bugzil.la/1007340
'∀ԐↃpƎɟפHIſӼ˥WNOԀÒᴚS⊥∩ɅMXʎZ[\\]ᵥ_,ɐqɔpǝɟƃɥıɾʞʅɯuodbɹsʇnʌʍxʎz'
};
const mods = {
'fr-x-psaccent': val => val.replace(reVowels, match => match + match.toLowerCase()),
// Surround each word with Unicode formatting codes, RLO and PDF:
// U+202E: RIGHT-TO-LEFT OVERRIDE (RLO)
// U+202C: POP DIRECTIONAL FORMATTING (PDF)
// See http://www.w3.org/International/questions/qa-bidi-controls
'ar-x-psbidi': val => val.replace(reWords, match => '‮' + match + '‬')
};
// Replace each Latin letter with a Unicode character from map
const replaceChars = (map, val) => val.replace(reAlphas, match => map.charAt(match.charCodeAt(0) - 65));
const transform = val => replaceChars(charMaps[id], mods[id](val));
// apply fn to translatable parts of val
const apply = (fn, val) => {
if (!val) {
return val;
}
const parts = val.split(reExcluded);
const modified = parts.map(function (part) {
if (reExcluded.test(part)) {
return part;
}
return fn(part);
});
return modified.join('');
};
return _pseudo = {
name: transform(name),
process: str => apply(transform, str)
};
};
}
const pseudo = Object.defineProperties(Object.create(null), {
'fr-x-psaccent': {
enumerable: true,
get: createGetter('fr-x-psaccent', 'Runtime Accented')
},
'ar-x-psbidi': {
enumerable: true,
get: createGetter('ar-x-psbidi', 'Runtime Bidi')
}
});
function emit(listeners, ...args) {
const type = args.shift();
if (listeners['*']) {
listeners['*'].slice().forEach(listener => listener.apply(this, args));
}
if (listeners[type]) {
listeners[type].slice().forEach(listener => listener.apply(this, args));
}
}
function addEventListener(listeners, type, listener) {
if (!(type in listeners)) {
listeners[type] = [];
}
listeners[type].push(listener);
}
function removeEventListener(listeners, type, listener) {
const typeListeners = listeners[type];
const pos = typeListeners.indexOf(listener);
if (pos === -1) {
return;
}
typeListeners.splice(pos, 1);
}
let Env = (function () {
function Env(fetchResource) {
_classCallCheck(this, Env);
this.fetchResource = fetchResource;
this.resCache = new Map();
this.resRefs = new Map();
this.numberFormatters = null;
this.parsers = {
properties: PropertiesParser,
l20n: L20nParser
};
const listeners = {};
this.emit = emit.bind(this, listeners);
this.addEventListener = addEventListener.bind(this, listeners);
this.removeEventListener = removeEventListener.bind(this, listeners);
}
_createClass(Env, [{
key: 'createContext',
value: function createContext(langs, resIds) {
const ctx = new Context(this, langs, resIds);
resIds.forEach(resId => {
const usedBy = this.resRefs.get(resId) || 0;
this.resRefs.set(resId, usedBy + 1);
});
return ctx;
}
}, {
key: 'destroyContext',
value: function destroyContext(ctx) {
ctx.resIds.forEach(resId => {
const usedBy = this.resRefs.get(resId) || 0;
if (usedBy > 1) {
return this.resRefs.set(resId, usedBy - 1);
}
this.resRefs.delete(resId);
this.resCache.forEach((val, key) => key.startsWith(resId) ? this.resCache.delete(key) : null);
});
}
}, {
key: '_parse',
value: function _parse(syntax, lang, data) {
const parser = this.parsers[syntax];
if (!parser) {
return data;
}
const emit = (type, err) => this.emit(type, amendError(lang, err));
return parser.parse.call(parser, emit, data);
}
}, {
key: '_create',
value: function _create(lang, entries) {
if (lang.src !== 'pseudo') {
return entries;
}
const pseudoentries = Object.create(null);
for (let key in entries) {
pseudoentries[key] = walkEntry(entries[key], pseudo[lang.code].process);
}
return pseudoentries;
}
}, {
key: '_getResource',
value: function _getResource(lang, res) {
const cache = this.resCache;
const id = res + lang.code + lang.src;
if (cache.has(id)) {
return cache.get(id);
}
const syntax = res.substr(res.lastIndexOf('.') + 1);
const saveEntries = data => {
const entries = this._parse(syntax, lang, data);
cache.set(id, this._create(lang, entries));
};
const recover = err => {
err.lang = lang;
this.emit('fetcherror', err);
cache.set(id, err);
};
const langToFetch = lang.src === 'pseudo' ? { code: 'en-US', src: 'app', ver: lang.ver } : lang;
const resource = this.fetchResource(res, langToFetch).then(saveEntries, recover);
cache.set(id, resource);
return resource;
}
}]);
return Env;
})();
function amendError(lang, err) {
err.lang = lang;
return err;
}
function prioritizeLocales(def, availableLangs, requested) {
let supportedLocale;
// Find the first locale in the requested list that is supported.
for (let i = 0; i < requested.length; i++) {
const locale = requested[i];
if (availableLangs.indexOf(locale) !== -1) {
supportedLocale = locale;
break;
}
}
if (!supportedLocale || supportedLocale === def) {
return [def];
}
return [supportedLocale, def];
}
function negotiateLanguages({ appVersion, defaultLang, availableLangs }, additionalLangs, prevLangs, requestedLangs) {
const allAvailableLangs = Object.keys(availableLangs).concat(Object.keys(additionalLangs)).concat(Object.keys(pseudo));
const newLangs = prioritizeLocales(defaultLang, allAvailableLangs, requestedLangs);
const langs = newLangs.map(code => ({
code: code,
src: getLangSource(appVersion, availableLangs, additionalLangs, code),
ver: appVersion
}));
return { langs, haveChanged: !arrEqual(prevLangs, newLangs) };
}
function arrEqual(arr1, arr2) {
return arr1.length === arr2.length && arr1.every((elem, i) => elem === arr2[i]);
}
function getMatchingLangpack(appVersion, langpacks) {
for (let i = 0, langpack; langpack = langpacks[i]; i++) {
if (langpack.target === appVersion) {
return langpack;
}
}
return null;
}
function getLangSource(appVersion, availableLangs, additionalLangs, code) {
if (additionalLangs && additionalLangs[code]) {
const lp = getMatchingLangpack(appVersion, additionalLangs[code]);
if (lp && (!(code in availableLangs) || parseInt(lp.revision) > availableLangs[code])) {
return 'extra';
}
}
if (code in pseudo && !(code in availableLangs)) {
return 'pseudo';
}
return 'app';
}
let Remote = (function () {
function Remote(fetchResource, broadcast) {
_classCallCheck(this, Remote);
this.broadcast = broadcast;
this.env = new Env(fetchResource);
this.ctxs = new Map();
}
_createClass(Remote, [{
key: 'registerView',
value: function registerView(view, resources, meta, additionalLangs, requestedLangs) {
const { langs } = negotiateLanguages(meta, additionalLangs, [], requestedLangs);
this.ctxs.set(view, this.env.createContext(langs, resources));
return langs;
}
}, {
key: 'unregisterView',
value: function unregisterView(view) {
this.ctxs.delete(view);
return true;
}
}, {
key: 'formatEntities',
value: function formatEntities(view, keys) {
return this.ctxs.get(view).formatEntities(...keys);
}
}, {
key: 'formatValues',
value: function formatValues(view, keys) {
return this.ctxs.get(view).formatValues(...keys);
}
}, {
key: 'changeLanguages',
value: function changeLanguages(view, meta, additionalLangs, requestedLangs) {
const oldCtx = this.ctxs.get(view);
const prevLangs = oldCtx.langs;
const newLangs = negotiateLanguages(meta, additionalLangs, prevLangs, requestedLangs);
this.ctxs.set(view, this.env.createContext(newLangs.langs, oldCtx.resIds));
return newLangs;
}
}, {
key: 'requestLanguages',
value: function requestLanguages(requestedLangs) {
this.broadcast('languageschangerequest', requestedLangs);
}
}, {
key: 'getName',
value: function getName(code) {
return pseudo[code].name;
}
}, {
key: 'processString',
value: function processString(code, str) {
return pseudo[code].process(str);
}
}]);
return Remote;
})();
const remote = new Remote(fetchResource, broadcast);
remote.service = new Service('l20n').method('registerView', (...args) => remote.registerView(...args)).method('requestLanguages', (...args) => remote.requestLanguages(...args)).method('changeLanguages', (...args) => remote.changeLanguages(...args)).method('formatEntities', (...args) => remote.formatEntities(...args)).method('formatValues', (...args) => remote.formatValues(...args)).method('getName', (...args) => remote.getName(...args)).method('processString', (...args) => remote.processString(...args)).on('disconnect', clientId => remote.unregisterView(clientId)).listen(channel);
})();
// a-z
// a-z
// A-Z
// a-f
// A-F