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Member "Atom/resources/app/apm/node_modules/y18n/index.js" (11 Apr 2017, 4846 Bytes) of package /windows/misc/atom-windows.zip:


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    1 var fs = require('fs')
    2 var path = require('path')
    3 var util = require('util')
    4 
    5 function Y18N (opts) {
    6   // configurable options.
    7   opts = opts || {}
    8   this.directory = opts.directory || './locales'
    9   this.updateFiles = typeof opts.updateFiles === 'boolean' ? opts.updateFiles : true
   10   this.locale = opts.locale || 'en'
   11   this.fallbackToLanguage = typeof opts.fallbackToLanguage === 'boolean' ? opts.fallbackToLanguage : true
   12 
   13   // internal stuff.
   14   this.cache = {}
   15   this.writeQueue = []
   16 }
   17 
   18 Y18N.prototype.__ = function () {
   19   var args = Array.prototype.slice.call(arguments)
   20   var str = args.shift()
   21   var cb = function () {} // start with noop.
   22 
   23   if (typeof args[args.length - 1] === 'function') cb = args.pop()
   24   cb = cb || function () {} // noop.
   25 
   26   if (!this.cache[this.locale]) this._readLocaleFile()
   27 
   28   // we've observed a new string, update the language file.
   29   if (!this.cache[this.locale][str] && this.updateFiles) {
   30     this.cache[this.locale][str] = str
   31 
   32     // include the current directory and locale,
   33     // since these values could change before the
   34     // write is performed.
   35     this._enqueueWrite([this.directory, this.locale, cb])
   36   } else {
   37     cb()
   38   }
   39 
   40   return util.format.apply(util, [this.cache[this.locale][str] || str].concat(args))
   41 }
   42 
   43 Y18N.prototype._enqueueWrite = function (work) {
   44   this.writeQueue.push(work)
   45   if (this.writeQueue.length === 1) this._processWriteQueue()
   46 }
   47 
   48 Y18N.prototype._processWriteQueue = function () {
   49   var _this = this
   50   var work = this.writeQueue[0]
   51 
   52   // destructure the enqueued work.
   53   var directory = work[0]
   54   var locale = work[1]
   55   var cb = work[2]
   56 
   57   var languageFile = this._resolveLocaleFile(directory, locale)
   58   var serializedLocale = JSON.stringify(this.cache[locale], null, 2)
   59 
   60   fs.writeFile(languageFile, serializedLocale, 'utf-8', function (err) {
   61     _this.writeQueue.shift()
   62     if (_this.writeQueue.length > 0) _this._processWriteQueue()
   63     cb(err)
   64   })
   65 }
   66 
   67 Y18N.prototype._readLocaleFile = function () {
   68   var localeLookup = {}
   69   var languageFile = this._resolveLocaleFile(this.directory, this.locale)
   70 
   71   try {
   72     localeLookup = JSON.parse(fs.readFileSync(languageFile, 'utf-8'))
   73   } catch (err) {
   74     if (err instanceof SyntaxError) {
   75       err.message = 'syntax error in ' + languageFile
   76     }
   77 
   78     if (err.code === 'ENOENT') localeLookup = {}
   79     else throw err
   80   }
   81 
   82   this.cache[this.locale] = localeLookup
   83 }
   84 
   85 Y18N.prototype._resolveLocaleFile = function (directory, locale) {
   86   var file = path.resolve(directory, './', locale + '.json')
   87   if (this.fallbackToLanguage && !this._fileExistsSync(file) && ~locale.lastIndexOf('_')) {
   88     // attempt fallback to language only
   89     var languageFile = path.resolve(directory, './', locale.split('_')[0] + '.json')
   90     if (this._fileExistsSync(languageFile)) file = languageFile
   91   }
   92   return file
   93 }
   94 
   95 // this only exists because fs.existsSync() "will be deprecated"
   96 // see https://nodejs.org/api/fs.html#fs_fs_existssync_path
   97 Y18N.prototype._fileExistsSync = function (file) {
   98   try {
   99     return fs.statSync(file).isFile()
  100   } catch (err) {
  101     return false
  102   }
  103 }
  104 
  105 Y18N.prototype.__n = function () {
  106   var args = Array.prototype.slice.call(arguments)
  107   var singular = args.shift()
  108   var plural = args.shift()
  109   var quantity = args.shift()
  110 
  111   var cb = function () {} // start with noop.
  112   if (typeof args[args.length - 1] === 'function') cb = args.pop()
  113 
  114   if (!this.cache[this.locale]) this._readLocaleFile()
  115 
  116   var str = quantity === 1 ? singular : plural
  117   if (this.cache[this.locale][singular]) {
  118     str = this.cache[this.locale][singular][quantity === 1 ? 'one' : 'other']
  119   }
  120 
  121   // we've observed a new string, update the language file.
  122   if (!this.cache[this.locale][singular] && this.updateFiles) {
  123     this.cache[this.locale][singular] = {
  124       one: singular,
  125       other: plural
  126     }
  127 
  128     // include the current directory and locale,
  129     // since these values could change before the
  130     // write is performed.
  131     this._enqueueWrite([this.directory, this.locale, cb])
  132   } else {
  133     cb()
  134   }
  135 
  136   // if a %d placeholder is provided, add quantity
  137   // to the arguments expanded by util.format.
  138   var values = [str]
  139   if (~str.indexOf('%d')) values.push(quantity)
  140 
  141   return util.format.apply(util, values.concat(args))
  142 }
  143 
  144 Y18N.prototype.setLocale = function (locale) {
  145   this.locale = locale
  146 }
  147 
  148 Y18N.prototype.getLocale = function () {
  149   return this.locale
  150 }
  151 
  152 Y18N.prototype.updateLocale = function (obj) {
  153   if (!this.cache[this.locale]) this._readLocaleFile()
  154 
  155   for (var key in obj) {
  156     this.cache[this.locale][key] = obj[key]
  157   }
  158 }
  159 
  160 module.exports = function (opts) {
  161   var y18n = new Y18N(opts)
  162 
  163   // bind all functions to y18n, so that
  164   // they can be used in isolation.
  165   for (var key in y18n) {
  166     if (typeof y18n[key] === 'function') {
  167       y18n[key] = y18n[key].bind(y18n)
  168     }
  169   }
  170 
  171   return y18n
  172 }