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Diffstat (limited to 'node_modules/gettext-parser/lib/moparser.js')
| -rw-r--r-- | node_modules/gettext-parser/lib/moparser.js | 202 |
1 files changed, 0 insertions, 202 deletions
diff --git a/node_modules/gettext-parser/lib/moparser.js b/node_modules/gettext-parser/lib/moparser.js deleted file mode 100644 index 8c204716b..000000000 --- a/node_modules/gettext-parser/lib/moparser.js +++ /dev/null @@ -1,202 +0,0 @@ -'use strict'; - -var encoding = require('encoding'); -var sharedFuncs = require('./shared'); - -/** - * Parses a binary MO object into translation table - * - * @param {Buffer} buffer Binary MO object - * @param {String} [defaultCharset] Default charset to use - * @return {Object} Translation object - */ -module.exports = function(buffer, defaultCharset) { - var parser = new Parser(buffer, defaultCharset); - return parser.parse(); -}; - -/** - * Creates a MO parser object. - * - * @constructor - * @param {Buffer} fileContents Binary MO object - * @param {String} [defaultCharset] Default charset to use - */ -function Parser(fileContents, defaultCharset) { - - this._fileContents = fileContents; - - /** - * Method name for writing int32 values, default littleendian - */ - this._writeFunc = 'writeUInt32LE'; - - /** - * Method name for reading int32 values, default littleendian - */ - this._readFunc = 'readUInt32LE'; - - this._charset = defaultCharset || 'iso-8859-1'; - - this._table = { - charset: this._charset, - headers: undefined, - translations: {} - }; -} - -/** - * Magic constant to check the endianness of the input file - */ -Parser.prototype.MAGIC = 0x950412de; - -/** - * Checks if number values in the input file are in big- or littleendian format. - * - * @return {Boolean} Return true if magic was detected - */ -Parser.prototype._checkMagick = function() { - if (this._fileContents.readUInt32LE(0) === this.MAGIC) { - this._readFunc = 'readUInt32LE'; - this._writeFunc = 'writeUInt32LE'; - return true; - } else if (this._fileContents.readUInt32BE(0) === this.MAGIC) { - this._readFunc = 'readUInt32BE'; - this._writeFunc = 'writeUInt32BE'; - return true; - } else { - return false; - } -}; - -/** - * Read the original strings and translations from the input MO file. Use the - * first translation string in the file as the header. - */ -Parser.prototype._loadTranslationTable = function() { - var offsetOriginals = this._offsetOriginals, - offsetTranslations = this._offsetTranslations, - position, length, - msgid, msgstr; - - for (var i = 0; i < this._total; i++) { - // msgid string - length = this._fileContents[this._readFunc](offsetOriginals); - offsetOriginals += 4; - position = this._fileContents[this._readFunc](offsetOriginals); - offsetOriginals += 4; - msgid = this._fileContents.slice(position, position + length); - - // matching msgstr - length = this._fileContents[this._readFunc](offsetTranslations); - offsetTranslations += 4; - position = this._fileContents[this._readFunc](offsetTranslations); - offsetTranslations += 4; - msgstr = this._fileContents.slice(position, position + length); - - if (!i && !msgid.toString()) { - this._handleCharset(msgstr); - } - - msgid = encoding.convert(msgid, 'utf-8', this._charset).toString('utf-8'); - msgstr = encoding.convert(msgstr, 'utf-8', this._charset).toString('utf-8'); - - this._addString(msgid, msgstr); - } - - // dump the file contents object - this._fileContents = null; -}; - -/** - * Detects charset for MO strings from the header - * - * @param {Buffer} headers Header value - */ -Parser.prototype._handleCharset = function(headers) { - - var headersStr = headers.toString(), - match; - - if ((match = headersStr.match(/[; ]charset\s*=\s*([\w\-]+)/i))) { - this._charset = this._table.charset = sharedFuncs.formatCharset(match[1], this._charset); - } - - headers = encoding.convert(headers, 'utf-8', this._charset).toString('utf-8'); - - this._table.headers = sharedFuncs.parseHeader(headers); -}; - -/** - * Adds a translation to the translation object - * - * @param {String} msgid Original string - * @params {String} msgstr Translation for the original string - */ -Parser.prototype._addString = function(msgid, msgstr) { - var translation = {}, - parts, msgctxt, msgid_plural; - - msgid = msgid.split('\u0004'); - if (msgid.length > 1) { - msgctxt = msgid.shift(); - translation.msgctxt = msgctxt; - } else { - msgctxt = ''; - } - msgid = msgid.join('\u0004'); - - parts = msgid.split('\u0000'); - msgid = parts.shift(); - - translation.msgid = msgid; - - if ((msgid_plural = parts.join('\u0000'))) { - translation.msgid_plural = msgid_plural; - } - - msgstr = msgstr.split('\u0000'); - translation.msgstr = [].concat(msgstr || []); - - if (!this._table.translations[msgctxt]) { - this._table.translations[msgctxt] = {}; - } - - this._table.translations[msgctxt][msgid] = translation; -}; - -/** - * Parses the MO object and returns translation table - * - * @return {Object} Translation table - */ -Parser.prototype.parse = function() { - if (!this._checkMagick()) { - return false; - } - - /** - * GetText revision nr, usually 0 - */ - this._revision = this._fileContents[this._readFunc](4); - - /** - * Total count of translated strings - */ - this._total = this._fileContents[this._readFunc](8); - - /** - * Offset position for original strings table - */ - this._offsetOriginals = this._fileContents[this._readFunc](12); - - /** - * Offset position for translation strings table - */ - this._offsetTranslations = this._fileContents[this._readFunc](16); - - // Load translations into this._translationTable - this._loadTranslationTable(); - - return this._table; -};
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