MediaWiki:I18n-js/code.js

/* * Library for accessing i18n messages for use in Dev Wiki scripts. * See I18n-js for documentation. * * @author Cqm  * @version 0.3.3 * * @notes Also used by VSTF wiki for their reporting forms (with a non-dev i8n.json page) */

/*global mediaWiki */

/*jshint bitwise:true, camelcase:true, curly:true, eqeqeq:true, es3:false, forin:true, immed:true, indent:4, latedef:true, newcap:true, noarg:true, noempty:true, nonew:true, plusplus:true, quotmark:single, undef:true, unused:true, strict:true, trailing:true, browser:true, devel:false, jquery:true, onevar:true

'use strict';
 * (function (window, $, mw, undefined) {

window.dev = window.dev || {};

// prevent double loading and loss of cache if (window.dev.i18n !== undefined) { return; }

/*        * Cache of mw config variables. */   var conf = mw.config.get([            'wgContentLanguage',            'wgUserLanguage'        ]),

/*        * Cache of loaded I18n instances. */       cache = {},

/*        * Language fallbacks for those that don't fallback to English. * Shouldn't need updating unless Wikia change theirs. *        * To generate this, use `$ grep -R "fallback =" /path/to/messages/`, * pipe the result to a text file and format the result. */       fallbacks = { 'ab': 'ru', 'ace': 'id', 'aln': 'sq', 'als': 'gsw', 'an': 'es', 'anp': 'hi', 'arn': 'es', 'arz': 'ar', 'av': 'ru', 'ay': 'es', 'ba': 'ru', 'bar': 'de', 'bat-smg': 'sgs', 'bcc': 'fa', 'be-x-old': 'be-tarask', 'bh': 'bho', 'bjn': 'id', 'bm': 'fr', 'bpy': 'bn', 'bqi': 'fa', 'bug': 'id', 'cbk-zam': 'es', 'ce': 'ru', 'ckb': 'ckb-arab', 'crh': 'crh-latn', 'crh-cyrl': 'ru', 'csb': 'pl', 'cv': 'ru', 'de-at': 'de', 'de-ch': 'de', 'de-formal': 'de', 'dsb': 'de', 'dtp': 'ms', 'eml': 'it', 'ff': 'fr', 'fiu-vro': 'vro', 'frc': 'fr', 'frp': 'fr', 'frr': 'de', 'fur': 'it', 'gag': 'tr', 'gan': 'gan-hant', 'gan-hans': 'zh-hans', 'gan-hant': 'zh-hant', 'gl': 'pt', 'glk': 'fa', 'gn': 'es', 'gsw': 'de', 'hif': 'hif-latn', 'hsb': 'de', 'ht': 'fr', 'ii': 'zh-cn', 'inh': 'ru', 'iu': 'ike-cans', 'jut': 'da', 'jv': 'id', 'kaa': 'kk-latn', 'kbd': 'kbd-cyrl', 'kbd-cyrl': 'ru', 'khw': 'ur', 'kiu': 'tr', 'kk': 'kk-cyrl', 'kk-arab': 'kk-cyrl', 'kk-cn': 'kk-arab', 'kk-kz': 'kk-cyrl', 'kk-latn': 'kk-cyrl', 'kk-tr': 'kk-latn', 'kl': 'da', 'koi': 'ru', 'ko-kp': 'ko', 'krc': 'ru', 'ks': 'ks-arab', 'ksh': 'de', 'ku': 'ku-latn', 'ku-arab': 'ckb', 'kv': 'ru', 'lad': 'es', 'lb': 'de', 'lbe': 'ru', 'lez': 'ru', 'li': 'nl', 'lij': 'it', 'liv': 'et', 'lmo': 'it', 'ln': 'fr', 'ltg': 'lv', 'lzz': 'tr', 'mai': 'hi', 'map-bms': 'jv', 'mg': 'fr', 'mhr': 'ru', 'min': 'id', 'mo': 'ro', 'mrj': 'ru', 'mwl': 'pt', 'myv': 'ru', 'mzn': 'fa', 'nah': 'es', 'nap': 'it', 'nds': 'de', 'nds-nl': 'nl', 'nl-informal': 'nl', 'no': 'nb', 'os': 'ru', 'pcd': 'fr', 'pdc': 'de', 'pdt': 'de', 'pfl': 'de', 'pms': 'it', // 'pt': 'pt-br', 'pt-br': 'pt', 'qu': 'es', 'qug': 'qu', 'rgn': 'it', 'rmy': 'ro', 'rue': 'uk', 'ruq': 'ruq-latn', 'ruq-cyrl': 'mk', 'ruq-latn': 'ro', 'sa': 'hi', 'sah': 'ru', 'scn': 'it', 'sg': 'fr', 'sgs': 'lt', 'shi': 'ar', 'simple': 'en', 'sli': 'de', 'sr': 'sr-ec', 'srn': 'nl', 'stq': 'de', 'su': 'id', 'szl': 'pl', 'tcy': 'kn', 'tg': 'tg-cyrl', 'tt': 'tt-cyrl', 'tt-cyrl': 'ru', 'ty': 'fr', 'udm': 'ru', 'ug': 'ug-arab', 'uk': 'ru', 'vec': 'it', 'vep': 'et', 'vls': 'nl', 'vmf': 'de', 'vot': 'fi', 'vro': 'et', 'wa': 'fr', 'wo': 'fr', 'wuu': 'zh-hans', 'xal': 'ru', 'xmf': 'ka', 'yi': 'he', 'za': 'zh-hans', 'zea': 'nl', 'zh': 'zh-hans', 'zh-classical': 'lzh', 'zh-cn': 'zh-hans', 'zh-hant': 'zh-hans', 'zh-hk': 'zh-hant', 'zh-min-nan': 'nan', 'zh-mo': 'zh-hk', 'zh-my': 'zh-sg', 'zh-sg': 'zh-hans', 'zh-tw': 'zh-hant', 'zh-yue': 'yue' };

/*    * Get a translation of a message from the messages object in the * requested language. *    * @param messages the message object to look the message up in. * @param name The name of the message to get. * @param lang The language to get the message in. *    * @return The requested translation or the name wrapped in < ... > if no    *     message could be found. */   function getMsg(messages, name, lang) { if (messages[lang] && messages[lang][name]) { return messages[lang][name]; }

if (lang === 'en') { return '<' + name + '>'; }

lang = fallbacks[lang] || 'en'; return getMsg(messages, name, lang); }

/*    * Substitute arguments into the string, where arguments are represented * as $n where n > 0. *    * @param message The message to substitute arguments into * @param arguments The arguments to substitute in. *    * @return The resulting message. */   function handleArgs(message, args) { args.forEach(function (elem, index) {           var rgx = new RegExp('\\$' + (index + 1), 'g');            message = message.replace(rgx, elem);        });

return message; }

/*    * Generate a HTML link using the supplied parameters. *    * @param href The href of the link which will be converted to     *     '/wiki/href'. * @param text The text and title of the link. If this is not supplied, it    *     will default to href. *    * @return The generated link. */   function makeLink(href, text) { text = text || href; href = href.indexOf('http') === 0 ? href : mw.util.wikiGetlink(href);

text = mw.html.escape(text); href = mw.html.escape(href);

return '' + text + ''; }

/*    * Parse basic wikitext links into HTML. *    * Will process: * - [url text] * - pagename * - text *    * @param message The message to process. *    * @return The resulting string. */   function parse(message) { // [url some text here] -> [$1 $2] var urlRgx = /\[(https?:\/\/.+?) (.+?)\]/g, // pagename -> $1 simplePageRgx = /\[\[([^|]*?)\]\]/g, // text -> $2 pageWithTextRgx = /\[\[(.+?)\|(.+?)\]\]/g;

return message .replace(urlRgx, function (_match, href, text) {               return makeLink(href, text);            }) .replace(simplePageRgx, function (_match, href) {               return makeLink(href);            }) .replace(pageWithTextRgx, function (_match, href, text) {               return makeLink(href, text);            }); }

/*    * Create a new Message instance. *    * @param message The name of the message. * @param arguments Any arguments to substitute into the message. */   function message(messages, defaultLang, args) { if (!args.length) { return; }

var msg = args.shift; msg = getMsg(messages, msg, defaultLang);

if (args.length) { msg = handleArgs(msg, args); }

return { /*            * Parse wikitext links in the message and return the result. *            * @return The resulting string. */           parse: function  { return parse(msg); },

/*            * Escape any HTML in the message and return the result. *            * @return The resulting string. */           escape: function  { return mw.html.escape(msg); },           /*             * Return the message as is. *            * @return The resulting string. */           plain: function  { return msg; }       };    }

/*    * Create a new i18n object. *    * @param messages The message object to look translations up in. */   function i18n(messages) { var defaultLang = conf.wgUserLanguage;

return { /*            * Set the default language. *            * @param lang the language code to use by default. */           useLang: function (lang) { defaultLang = lang; },

/*            * Set the default language to the content language. */           useContentLang: function  { defaultLang = conf.wgContentLanguage; },

/*            * Set the default language to the user's language. */           useUserLang: function  { defaultLang = conf.wgUserLanguage; },

/*            * Create a new instance of Message. */           msg: function  { var args = Array.prototype.slice.call(arguments); return message(messages, defaultLang, args); },

/*            * For accessing the raw messages. */           _messages: messages };   }

/*    * Strip comments from a JSON string which are illegal under the JSON spec. *    * @param json The JSON string. *    * @return The JSON string after any comments have been removed. */   function stripComments(json) { mw.log('[I18n-js] Raw i18n.json:', json);

json = json // inline comments .replace(/\/\/.*?(\n|$)/g, '$1') // block comments // this is a bit basic, so will break on comments inside strings .replace(/\/\*[\s\S]*?\*\//g, '');

mw.log('[I18n-js] Comment-stripped i18n.json:', json); return json; }

/*    * Load a messages stored in as JSON on a page. *    * @param name The name of the script the messages are for. This will be    *     used to get messages from *    http://dev.wikia.com/wiki/MediaWiki:Custom-name/i18n.json. *    * @return A jQuery.Deferred instance. */   function loadMessages(name) { var deferred = $.Deferred, page, params;

if (cache[name]) { deferred.resolve(cache[name]); } else { // allow custom i18n pages to be specified on other wikis // mainly for VSTF wiki to keep their own JSON file page = 'MediaWiki:Custom-' + name + '/i18n.json';

if (name.indexOf('u:') === 0) { page = name; }

params = { mode: 'articles', articles: page, only: 'styles', // keep the json unminified as vstf wiki use comments in their json file debug: '1' };

mw.loader.using(['mediawiki.util'], function {                $.get(mw.util.wikiScript('load'), params).done(function (res) { var json, obj, msg;

// handle parse errors gracefully try { json = JSON.parse(stripComments(res)); } catch (e) { msg = (e.message === 'Unexpected end of JSON input') ? e.message + '. This may be caused by a non-existent i18n.json page.' : e.message;

console.log('[I18n-js] SyntaxError in messages: ' + msg); json = {}; }

obj = i18n(json);

// cache the result in case it's used multiple times cache[name] = obj; deferred.resolve(obj); });           });        }

return deferred; }

// expose under the dev global window.dev.i18n = { loadMessages: loadMessages,

// 'hidden' functions to allow testing _stripComments: stripComments, _getMsg: getMsg, _handleArgs: handleArgs, _parse: parse, _fallbacks: fallbacks };

// fire an event on load mw.hook('dev.i18n').fire(window.dev.i18n); // alternatively, use $.getScript (or mw.loader) // and use the returned promise

}(this, jQuery, mediaWiki));