507 lines
21 KiB
JavaScript
507 lines
21 KiB
JavaScript
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/******************************************************************************
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* jquery.i18n.properties
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*
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* Dual licensed under the GPL (http://dev.jquery.com/browser/trunk/jquery/GPL-LICENSE.txt) and
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* MIT (http://dev.jquery.com/browser/trunk/jquery/MIT-LICENSE.txt) licenses.
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*
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* @version 1.2.7
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* @url https://github.com/jquery-i18n-properties/jquery-i18n-properties
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* @inspiration Localisation assistance for jQuery (http://keith-wood.name/localisation.html)
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* by Keith Wood (kbwood{at}iinet.com.au) June 2007
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*
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*****************************************************************************/
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(function ($) {
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$.i18n = {};
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/**
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* Map holding bundle keys if mode is 'map' or 'both'. Values of this can also be an
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* Object, in which case the key is a namespace.
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*/
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$.i18n.map = {};
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var debug = function (message) {
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window.console && console.log('i18n::' + message);
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};
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/**
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* Load and parse message bundle files (.properties),
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* making bundles keys available as javascript variables.
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*
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* i18n files are named <name>.js, or <name>_<language>.js or <name>_<language>_<country>.js
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* Where:
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* The <language> argument is a valid ISO Language Code. These codes are the lower-case,
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* two-letter codes as defined by ISO-639. You can find a full list of these codes at a
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* number of sites, such as: http://www.loc.gov/standards/iso639-2/englangn.html
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* The <country> argument is a valid ISO Country Code. These codes are the upper-case,
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* two-letter codes as defined by ISO-3166. You can find a full list of these codes at a
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* number of sites, such as: http://www.iso.ch/iso/en/prods-services/iso3166ma/02iso-3166-code-lists/list-en1.html
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*
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* Sample usage for a bundles/Messages.properties bundle:
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* $.i18n.properties({
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* name: 'Messages',
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* language: 'en_US',
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* path: 'bundles'
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* });
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* @param name (string/string[], optional) names of file to load (eg, 'Messages' or ['Msg1','Msg2']). Defaults to "Messages"
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* @param language (string, optional) language/country code (eg, 'en', 'en_US', 'pt_BR'). if not specified, language reported by the browser will be used instead.
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* @param path (string, optional) path of directory that contains file to load
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* @param mode (string, optional) whether bundles keys are available as JavaScript variables/functions or as a map (eg, 'vars' or 'map')
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* @param debug (boolean, optional) whether debug statements are logged at the console
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* @param cache (boolean, optional) whether bundles should be cached by the browser, or forcibly reloaded on each page load. Defaults to false (i.e. forcibly reloaded)
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* @param encoding (string, optional) the encoding to request for bundles. Property file resource bundles are specified to be in ISO-8859-1 format. Defaults to UTF-8 for backward compatibility.
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* @param callback (function, optional) callback function to be called after script is terminated
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*/
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$.i18n.properties = function (settings) {
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var defaults = {
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name: 'Messages',
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language: '',
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path: '',
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namespace: null,
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mode: 'vars',
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cache: false,
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debug: false,
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encoding: 'UTF-8',
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async: false,
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callback: null
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};
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settings = $.extend(defaults, settings);
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if (settings.namespace && typeof settings.namespace == 'string') {
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// A namespace has been supplied, initialise it.
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if (settings.namespace.match(/^[a-z]*$/)) {
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$.i18n.map[settings.namespace] = {};
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} else {
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debug('Namespaces can only be lower case letters, a - z');
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settings.namespace = null;
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}
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}
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// Ensure a trailing slash on the path
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if (!settings.path.match(/\/$/)) settings.path += '/';
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// Try to ensure that we have at a least a two letter language code
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settings.language = this.normaliseLanguageCode(settings);
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// Ensure an array
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var files = (settings.name && settings.name.constructor === Array) ? settings.name : [settings.name];
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// A locale is at least a language code which means at least two files per name. If
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// we also have a country code, thats an extra file per name.
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settings.totalFiles = (files.length * 2) + ((settings.language.length >= 5) ? files.length : 0);
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if (settings.debug) {
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debug('totalFiles: ' + settings.totalFiles);
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}
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settings.filesLoaded = 0;
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files.forEach(function (file) {
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var defaultFileName, shortFileName, longFileName, fileNames;
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// 1. load base (eg, Messages.properties)
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defaultFileName = settings.path + file + '.properties';
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// 2. with language code (eg, Messages_pt.properties)
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var shortCode = settings.language.substring(0, 2);
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shortFileName = settings.path + file + '_' + shortCode + '.properties';
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// 3. with language code and country code (eg, Messages_pt_BR.properties)
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if (settings.language.length >= 5) {
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var longCode = settings.language.substring(0, 5);
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longFileName = settings.path + file + '_' + longCode + '.properties';
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fileNames = [defaultFileName, shortFileName, longFileName];
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} else {
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fileNames = [defaultFileName, shortFileName];
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}
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loadAndParseFiles(fileNames, settings);
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});
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// call callback
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if (settings.callback && !settings.async) {
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settings.callback();
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}
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}; // properties
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/**
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* When configured with mode: 'map', allows access to bundle values by specifying its key.
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* Eg, jQuery.i18n.prop('com.company.bundles.menu_add')
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*/
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$.i18n.prop = function (key /* Add parameters as function arguments as necessary */) {
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var args = [].slice.call(arguments);
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var phvList, namespace;
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if (args.length == 2) {
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if ($.isArray(args[1])) {
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// An array was passed as the second parameter, so assume it is the list of place holder values.
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phvList = args[1];
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} else if (typeof args[1] === 'object') {
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// Second argument is an options object {namespace: 'mynamespace', replacements: ['egg', 'nog']}
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namespace = args[1].namespace;
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var replacements = args[1].replacements;
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args.splice(-1, 1);
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if (replacements) {
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Array.prototype.push.apply(args, replacements);
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}
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}
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}
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var value = (namespace) ? $.i18n.map[namespace][key] : $.i18n.map[key];
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if (value === null) {
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return '[' + ((namespace) ? namespace + '#' + key : key) + ']';
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}
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// Place holder replacement
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/**
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* Tested with:
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* test.t1=asdf ''{0}''
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* test.t2=asdf '{0}' '{1}'{1}'zxcv
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* test.t3=This is \"a quote" 'a''{0}''s'd{fgh{ij'
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* test.t4="'''{'0}''" {0}{a}
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* test.t5="'''{0}'''" {1}
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* test.t6=a {1} b {0} c
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* test.t7=a 'quoted \\ s\ttringy' \t\t x
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*
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* Produces:
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* test.t1, p1 ==> asdf 'p1'
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* test.t2, p1 ==> asdf {0} {1}{1}zxcv
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* test.t3, p1 ==> This is "a quote" a'{0}'sd{fgh{ij
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* test.t4, p1 ==> "'{0}'" p1{a}
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* test.t5, p1 ==> "'{0}'" {1}
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* test.t6, p1 ==> a {1} b p1 c
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* test.t6, p1, p2 ==> a p2 b p1 c
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* test.t6, p1, p2, p3 ==> a p2 b p1 c
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* test.t7 ==> a quoted \ s tringy x
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*/
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var i;
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if (typeof(value) == 'string') {
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// Handle escape characters. Done separately from the tokenizing loop below because escape characters are
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// active in quoted strings.
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i = 0;
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while ((i = value.indexOf('\\', i)) != -1) {
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if (value.charAt(i + 1) == 't') {
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value = value.substring(0, i) + '\t' + value.substring((i++) + 2); // tab
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} else if (value.charAt(i + 1) == 'r') {
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value = value.substring(0, i) + '\r' + value.substring((i++) + 2); // return
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} else if (value.charAt(i + 1) == 'n') {
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value = value.substring(0, i) + '\n' + value.substring((i++) + 2); // line feed
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} else if (value.charAt(i + 1) == 'f') {
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value = value.substring(0, i) + '\f' + value.substring((i++) + 2); // form feed
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} else if (value.charAt(i + 1) == '\\') {
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value = value.substring(0, i) + '\\' + value.substring((i++) + 2); // \
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} else {
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value = value.substring(0, i) + value.substring(i + 1); // Quietly drop the character
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}
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}
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// Lazily convert the string to a list of tokens.
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var arr = [], j, index;
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i = 0;
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while (i < value.length) {
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if (value.charAt(i) == '\'') {
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// Handle quotes
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if (i == value.length - 1) {
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value = value.substring(0, i); // Silently drop the trailing quote
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} else if (value.charAt(i + 1) == '\'') {
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value = value.substring(0, i) + value.substring(++i); // Escaped quote
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} else {
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// Quoted string
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j = i + 2;
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while ((j = value.indexOf('\'', j)) != -1) {
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if (j == value.length - 1 || value.charAt(j + 1) != '\'') {
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// Found start and end quotes. Remove them
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value = value.substring(0, i) + value.substring(i + 1, j) + value.substring(j + 1);
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i = j - 1;
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break;
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} else {
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// Found a double quote, reduce to a single quote.
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value = value.substring(0, j) + value.substring(++j);
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}
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}
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if (j == -1) {
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// There is no end quote. Drop the start quote
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value = value.substring(0, i) + value.substring(i + 1);
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}
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}
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} else if (value.charAt(i) == '{') {
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// Beginning of an unquoted place holder.
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j = value.indexOf('}', i + 1);
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if (j == -1) {
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i++; // No end. Process the rest of the line. Java would throw an exception
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} else {
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// Add 1 to the index so that it aligns with the function arguments.
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index = parseInt(value.substring(i + 1, j));
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if (!isNaN(index) && index >= 0) {
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// Put the line thus far (if it isn't empty) into the array
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var s = value.substring(0, i);
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if (s !== "") {
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arr.push(s);
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}
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// Put the parameter reference into the array
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arr.push(index);
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// Start the processing over again starting from the rest of the line.
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i = 0;
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value = value.substring(j + 1);
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} else {
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i = j + 1; // Invalid parameter. Leave as is.
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}
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}
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} else {
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i++;
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}
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} // while
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// Put the remainder of the no-empty line into the array.
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if (value !== "") {
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arr.push(value);
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}
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value = arr;
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// Make the array the value for the entry.
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if (namespace) {
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$.i18n.map[settings.namespace][key] = arr;
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} else {
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$.i18n.map[key] = arr;
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}
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}
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if (value.length === 0) {
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return "";
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}
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if (value.length == 1 && typeof(value[0]) == "string") {
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return value[0];
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}
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var str = "";
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for (i = 0, j = value.length; i < j; i++) {
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if (typeof(value[i]) == "string") {
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str += value[i];
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} else if (phvList && value[i] < phvList.length) {
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// Must be a number
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str += phvList[value[i]];
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} else if (!phvList && value[i] + 1 < args.length) {
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str += args[value[i] + 1];
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} else {
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str += "{" + value[i] + "}";
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}
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}
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return str;
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};
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function callbackIfComplete(settings) {
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if (settings.debug) {
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debug('callbackIfComplete()');
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debug('totalFiles: ' + settings.totalFiles);
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debug('filesLoaded: ' + settings.filesLoaded);
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}
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if (settings.async) {
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if (settings.filesLoaded === settings.totalFiles) {
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if (settings.callback) {
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settings.callback();
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}
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}
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}
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}
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function loadAndParseFiles(fileNames, settings) {
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if (settings.debug) debug('loadAndParseFiles');
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if (fileNames !== null && fileNames.length > 0) {
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loadAndParseFile(fileNames[0], settings, function () {
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fileNames.shift();
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loadAndParseFiles(fileNames,settings);
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});
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} else {
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callbackIfComplete(settings);
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}
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}
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/** Load and parse .properties files */
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function loadAndParseFile(filename, settings, nextFile) {
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if (settings.debug) {
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debug('loadAndParseFile(\'' + filename +'\')');
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debug('totalFiles: ' + settings.totalFiles);
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debug('filesLoaded: ' + settings.filesLoaded);
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}
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if (filename !== null && typeof filename !== 'undefined') {
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$.ajax({
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url: filename,
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async: settings.async,
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cache: settings.cache,
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dataType: 'text',
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success: function (data, status) {
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if (settings.debug) {
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debug('Succeeded in downloading ' + filename + '.');
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debug(data);
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}
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parseData(data, settings);
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nextFile();
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},
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error: function (jqXHR, textStatus, errorThrown) {
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if (settings.debug) {
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|
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debug('Failed to download or parse ' + filename + '. errorThrown: ' + errorThrown);
|
||
|
|
}
|
||
|
|
if (jqXHR.status === 404) {
|
||
|
|
settings.totalFiles -= 1;
|
||
|
|
}
|
||
|
|
nextFile();
|
||
|
|
}
|
||
|
|
});
|
||
|
|
}
|
||
|
|
}
|
||
|
|
|
||
|
|
/** Parse .properties files */
|
||
|
|
function parseData(data, settings) {
|
||
|
|
|
||
|
|
var parsed = '';
|
||
|
|
var lines = data.split(/\n/);
|
||
|
|
var regPlaceHolder = /(\{\d+})/g;
|
||
|
|
var regRepPlaceHolder = /\{(\d+)}/g;
|
||
|
|
var unicodeRE = /(\\u.{4})/ig;
|
||
|
|
for (var i=0,j=lines.length;i<j;i++) {
|
||
|
|
var line = lines[i];
|
||
|
|
|
||
|
|
line = line.trim();
|
||
|
|
if (line.length > 0 && line.match("^#") != "#") { // skip comments
|
||
|
|
var pair = line.split('=');
|
||
|
|
if (pair.length > 0) {
|
||
|
|
/** Process key & value */
|
||
|
|
var name = decodeURI(pair[0]).trim();
|
||
|
|
var value = pair.length == 1 ? "" : pair[1];
|
||
|
|
// process multi-line values
|
||
|
|
while (value.search(/\\$/) != -1) {
|
||
|
|
value = value.substring(0, value.length - 1);
|
||
|
|
value += lines[++i].trimRight();
|
||
|
|
}
|
||
|
|
// Put values with embedded '='s back together
|
||
|
|
for (var s = 2; s < pair.length; s++) {
|
||
|
|
value += '=' + pair[s];
|
||
|
|
}
|
||
|
|
value = value.trim();
|
||
|
|
|
||
|
|
/** Mode: bundle keys in a map */
|
||
|
|
if (settings.mode == 'map' || settings.mode == 'both') {
|
||
|
|
// handle unicode chars possibly left out
|
||
|
|
var unicodeMatches = value.match(unicodeRE);
|
||
|
|
if (unicodeMatches) {
|
||
|
|
unicodeMatches.forEach(function (match) {
|
||
|
|
value = value.replace(match, unescapeUnicode(match));
|
||
|
|
});
|
||
|
|
}
|
||
|
|
// add to map
|
||
|
|
if (settings.namespace) {
|
||
|
|
$.i18n.map[settings.namespace][name] = value;
|
||
|
|
} else {
|
||
|
|
$.i18n.map[name] = value;
|
||
|
|
}
|
||
|
|
}
|
||
|
|
|
||
|
|
/** Mode: bundle keys as vars/functions */
|
||
|
|
if (settings.mode == 'vars' || settings.mode == 'both') {
|
||
|
|
value = value.replace(/"/g, '\\"'); // escape quotation mark (")
|
||
|
|
|
||
|
|
// make sure namespaced key exists (eg, 'some.key')
|
||
|
|
checkKeyNamespace(name);
|
||
|
|
|
||
|
|
// value with variable substitutions
|
||
|
|
if (regPlaceHolder.test(value)) {
|
||
|
|
var parts = value.split(regPlaceHolder);
|
||
|
|
// process function args
|
||
|
|
var first = true;
|
||
|
|
var fnArgs = '';
|
||
|
|
var usedArgs = [];
|
||
|
|
parts.forEach(function (part) {
|
||
|
|
|
||
|
|
if (regPlaceHolder.test(part) && (usedArgs.length === 0 || usedArgs.indexOf(part) == -1)) {
|
||
|
|
if (!first) {
|
||
|
|
fnArgs += ',';
|
||
|
|
}
|
||
|
|
fnArgs += part.replace(regRepPlaceHolder, 'v$1');
|
||
|
|
usedArgs.push(part);
|
||
|
|
first = false;
|
||
|
|
}
|
||
|
|
});
|
||
|
|
parsed += name + '=function(' + fnArgs + '){';
|
||
|
|
// process function body
|
||
|
|
var fnExpr = '"' + value.replace(regRepPlaceHolder, '"+v$1+"') + '"';
|
||
|
|
parsed += 'return ' + fnExpr + ';' + '};';
|
||
|
|
// simple value
|
||
|
|
} else {
|
||
|
|
parsed += name + '="' + value + '";';
|
||
|
|
}
|
||
|
|
} // END: Mode: bundle keys as vars/functions
|
||
|
|
} // END: if(pair.length > 0)
|
||
|
|
} // END: skip comments
|
||
|
|
}
|
||
|
|
eval(parsed);
|
||
|
|
settings.filesLoaded += 1;
|
||
|
|
}
|
||
|
|
|
||
|
|
/** Make sure namespace exists (for keys with dots in name) */
|
||
|
|
// TODO key parts that start with numbers quietly fail. i.e. month.short.1=Jan
|
||
|
|
function checkKeyNamespace(key) {
|
||
|
|
|
||
|
|
var regDot = /\./;
|
||
|
|
if (regDot.test(key)) {
|
||
|
|
var fullname = '';
|
||
|
|
var names = key.split(/\./);
|
||
|
|
for (var i=0,j=names.length;i<j;i++) {
|
||
|
|
var name = names[i];
|
||
|
|
|
||
|
|
if (i > 0) {
|
||
|
|
fullname += '.';
|
||
|
|
}
|
||
|
|
|
||
|
|
fullname += name;
|
||
|
|
if (eval('typeof ' + fullname + ' == "undefined"')) {
|
||
|
|
eval(fullname + '={};');
|
||
|
|
}
|
||
|
|
}
|
||
|
|
}
|
||
|
|
}
|
||
|
|
|
||
|
|
/** Ensure language code is in the format aa_AA. */
|
||
|
|
$.i18n.normaliseLanguageCode = function (settings) {
|
||
|
|
|
||
|
|
var lang = settings.language;
|
||
|
|
if (!lang || lang.length < 2) {
|
||
|
|
if (settings.debug) debug('No language supplied. Pulling it from the browser ...');
|
||
|
|
lang = (navigator.languages && navigator.languages.length > 0) ? navigator.languages[0]
|
||
|
|
: (navigator.language || navigator.userLanguage /* IE */ || 'en');
|
||
|
|
if (settings.debug) debug('Language from browser: ' + lang);
|
||
|
|
}
|
||
|
|
|
||
|
|
lang = lang.toLowerCase();
|
||
|
|
lang = lang.replace(/-/,"_"); // some browsers report language as en-US instead of en_US
|
||
|
|
if (lang.length > 3) {
|
||
|
|
lang = lang.substring(0, 3) + lang.substring(3).toUpperCase();
|
||
|
|
}
|
||
|
|
return lang;
|
||
|
|
};
|
||
|
|
|
||
|
|
/** Unescape unicode chars ('\u00e3') */
|
||
|
|
function unescapeUnicode(str) {
|
||
|
|
|
||
|
|
// unescape unicode codes
|
||
|
|
var codes = [];
|
||
|
|
var code = parseInt(str.substr(2), 16);
|
||
|
|
if (code >= 0 && code < Math.pow(2, 16)) {
|
||
|
|
codes.push(code);
|
||
|
|
}
|
||
|
|
// convert codes to text
|
||
|
|
return codes.reduce(function (acc, val) { return acc + String.fromCharCode(val); }, '');
|
||
|
|
}
|
||
|
|
}) (jQuery);
|