diff options
Diffstat (limited to 'node_modules/gettext-parser/lib/mocompiler.js')
| -rw-r--r-- | node_modules/gettext-parser/lib/mocompiler.js | 237 |
1 files changed, 0 insertions, 237 deletions
diff --git a/node_modules/gettext-parser/lib/mocompiler.js b/node_modules/gettext-parser/lib/mocompiler.js deleted file mode 100644 index 0e848c7fd..000000000 --- a/node_modules/gettext-parser/lib/mocompiler.js +++ /dev/null @@ -1,237 +0,0 @@ -'use strict'; - -var encoding = require('encoding'); -var sharedFuncs = require('./shared'); - -/** - * Exposes general compiler function. Takes a translation - * object as a parameter and returns binary MO object - * - * @param {Object} table Translation object - * @return {Buffer} Compiled binary MO object - */ -module.exports = function(table) { - var compiler = new Compiler(table); - return compiler.compile(); -}; - -/** - * Creates a MO compiler object. - * - * @constructor - * @param {Object} table Translation table as defined in the README - */ -function Compiler(table) { - this._table = table || {}; - this._table.headers = this._table.headers || {}; - this._table.translations = this._table.translations || {}; - - this._translations = []; - - this._writeFunc = 'writeUInt32LE'; - - this._handleCharset(); -} - -/** - * Magic bytes for the generated binary data - */ -Compiler.prototype.MAGIC = 0x950412de; - -/** - * Handles header values, replaces or adds (if needed) a charset property - */ -Compiler.prototype._handleCharset = function() { - var parts = (this._table.headers['content-type'] || 'text/plain').split(';'), - contentType = parts.shift(), - charset = sharedFuncs.formatCharset(this._table.charset), - params = []; - - params = parts.map(function(part) { - var parts = part.split('='), - key = parts.shift().trim(), - value = parts.join('='); - - if (key.toLowerCase() === 'charset') { - if (!charset) { - charset = sharedFuncs.formatCharset(value.trim() || 'utf-8'); - } - return 'charset=' + charset; - } - - return part; - }); - - if (!charset) { - charset = this._table.charset || 'utf-8'; - params.push('charset=' + charset); - } - - this._table.charset = charset; - this._table.headers['content-type'] = contentType + '; ' + params.join('; '); - - this._charset = charset; -}; - -/** - * Generates an array of translation strings - * in the form of [{msgid:... , msgstr:...}] - * - * @return {Array} Translation strings array - */ -Compiler.prototype._generateList = function() { - var list = []; - - list.push({ - msgid: new Buffer(0), - msgstr: encoding.convert(sharedFuncs.generateHeader(this._table.headers), this._charset) - }); - - Object.keys(this._table.translations).forEach((function(msgctxt) { - if (typeof this._table.translations[msgctxt] !== 'object') { - return; - } - Object.keys(this._table.translations[msgctxt]).forEach((function(msgid) { - if (typeof this._table.translations[msgctxt][msgid] !== 'object') { - return; - } - if (msgctxt === '' && msgid === '') { - return; - } - - var msgid_plural = this._table.translations[msgctxt][msgid].msgid_plural, - key = msgid, - value; - - if (msgctxt) { - key = msgctxt + '\u0004' + key; - } - - if (msgid_plural) { - key += '\u0000' + msgid_plural; - } - - value = [].concat(this._table.translations[msgctxt][msgid].msgstr || []).join('\u0000'); - - list.push({ - msgid: encoding.convert(key, this._charset), - msgstr: encoding.convert(value, this._charset) - }); - }).bind(this)); - }).bind(this)); - - return list; -}; - -/** - * Calculate buffer size for the final binary object - * - * @param {Array} list An array of translation strings from _generateList - * @return {Object} Size data of {msgid, msgstr, total} - */ -Compiler.prototype._calculateSize = function(list) { - var msgidLength = 0, - msgstrLength = 0, - totalLength = 0; - - list.forEach(function(translation) { - msgidLength += translation.msgid.length + 1; // + extra 0x00 - msgstrLength += translation.msgstr.length + 1; // + extra 0x00 - }); - - totalLength = 4 + // magic number - 4 + // revision - 4 + // string count - 4 + // original string table offset - 4 + // translation string table offset - 4 + // hash table size - 4 + // hash table offset - (4 + 4) * list.length + // original string table - (4 + 4) * list.length + // translations string table - msgidLength + // originals - msgstrLength; // translations - - return { - msgid: msgidLength, - msgstr: msgstrLength, - total: totalLength - }; -}; - -/** - * Generates the binary MO object from the translation list - * - * @param {Array} list translation list - * @param {Object} size Byte size information - * @return {Buffer} Compiled MO object - */ -Compiler.prototype._build = function(list, size) { - var returnBuffer = new Buffer(size.total), - curPosition = 0, - i, len; - - // magic - returnBuffer[this._writeFunc](this.MAGIC, 0); - - // revision - returnBuffer[this._writeFunc](0, 4); - - // string count - returnBuffer[this._writeFunc](list.length, 8); - - // original string table offset - returnBuffer[this._writeFunc](28, 12); - - // translation string table offset - returnBuffer[this._writeFunc](28 + (4 + 4) * list.length, 16); - - // hash table size - returnBuffer[this._writeFunc](0, 20); - - // hash table offset - returnBuffer[this._writeFunc](28 + (4 + 4) * list.length, 24); - - // build originals table - curPosition = 28 + 2 * (4 + 4) * list.length; - for (i = 0, len = list.length; i < len; i++) { - list[i].msgid.copy(returnBuffer, curPosition); - returnBuffer[this._writeFunc](list[i].msgid.length, 28 + i * 8); - returnBuffer[this._writeFunc](curPosition, 28 + i * 8 + 4); - returnBuffer[curPosition + list[i].msgid.length] = 0x00; - curPosition += list[i].msgid.length + 1; - } - - // build translations table - for (i = 0, len = list.length; i < len; i++) { - list[i].msgstr.copy(returnBuffer, curPosition); - returnBuffer[this._writeFunc](list[i].msgstr.length, 28 + (4 + 4) * list.length + i * 8); - returnBuffer[this._writeFunc](curPosition, 28 + (4 + 4) * list.length + i * 8 + 4); - returnBuffer[curPosition + list[i].msgstr.length] = 0x00; - curPosition += list[i].msgstr.length + 1; - } - - return returnBuffer; -}; - -/** - * Compiles translation object into a binary MO object - * - * @return {Buffer} Compiled MO object - */ -Compiler.prototype.compile = function() { - var list = this._generateList(), - size = this._calculateSize(list); - - // sort by msgid - list.sort(function(a, b) { - if (a.msgid > b.msgid) { - return 1; - } - if (a.msgid < b.msgid) { - return -1; - } - return 0; - }); - - return this._build(list, size); -};
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