428 lines
13 KiB
JavaScript
428 lines
13 KiB
JavaScript
//
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// Jala Project [http://opensvn.csie.org/traccgi/jala]
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//
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// Copyright 2004 ORF Online und Teletext GmbH
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//
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// Licensed under the Apache License, Version 2.0 (the ``License'');
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// you may not use this file except in compliance with the License.
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// You may obtain a copy of the License at
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//
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// http://www.apache.org/licenses/LICENSE-2.0
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//
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// Unless required by applicable law or agreed to in writing, software
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// distributed under the License is distributed on an ``AS IS'' BASIS,
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// WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
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// See the License for the specific language governing permissions and
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// limitations under the License.
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//
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// $Revision$
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// $LastChangedBy$
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// $LastChangedDate$
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// $HeadURL$
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//
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/**
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* @fileoverview
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* MessageParser script that extracts all gettext message macros
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* out of skin files and all calls of gettext functions
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* (that is "gettext", "ngettext" and "_") out of function
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* files and directly generates a .pot file from it.
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* If an argument "-o" is given and it is followed by
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* a path to a file, the output is written to this file.
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* Any other argument is interpreted as directory or file
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* that should be parsed.
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*/
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/**
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* @constructor
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*/
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var Message = function(id, pluralId) {
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this.id = id && String(id);
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this.pluralId = pluralId && String(pluralId);
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this.locations = [];
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return this;
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};
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/**
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* Static method that constructs a message key by
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* which a message can be identified in the messages map.
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* @param {String} id The message Id
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* @param {String} pluralId The plural message Id
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* @returns The generated message key
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* @type String
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*/
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Message.getKey = function(id, pluralId) {
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if (id && pluralId) {
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return id + pluralId;
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} else {
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return id;
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}
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};
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/**
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* Encloses the string passed as argument in quotes
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* and wraps the string if it is longer than 80 characters.
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* @param {String} str The string to format
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* @param {Boolean} wrap If true the message string will be splitted in
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* parts where each one is max. 80 characters long
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* @returns The formatted string.
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* @type String
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*/
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Message.formatId = function(str, wrap) {
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var escapeQuotes = function(s) {
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return s.replace(/(^|[^\\])"/g, '$1\\"');
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};
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var len = 80;
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var buf = new java.lang.StringBuffer();
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if (wrap == true && str.length > len) {
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buf.append('""\n');
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var offset = 0;
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while (offset < str.length) {
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buf.append('"');
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buf.append(escapeQuotes(str.substring(offset, offset += len)));
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buf.append('"');
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buf.append("\n");
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}
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return buf.toString();
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} else {
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buf.append('"');
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buf.append(escapeQuotes(str));
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buf.append('"\n');
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}
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return buf.toString();
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};
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/**
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* Adds a new location to this Message instance.
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* @param {String} filePath The path to the file this message
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* is located in.
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* @param {Number} lineNum The line number at which this message
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* was found at
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*/
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Message.prototype.addLocation = function(filePath, lineNum) {
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this.locations.push(filePath + ":" + lineNum);
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};
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/**
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* Writes this Message instance as .po compatible string to
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* the StringBuffer passed as argument.
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* @param {java.lang.StringBuffer} buf The StringBuffer instance
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* to write into
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*/
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Message.prototype.write = function(buf) {
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for (var i=0;i<this.locations.length;i++) {
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buf.append("#: ");
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buf.append(this.locations[i]);
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buf.append("\n");
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}
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if (this.id.indexOf("{") > -1
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|| (this.pluralId != null && this.pluralId.indexOf("{") > -1)) {
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buf.append("#, java-format\n");
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}
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buf.append('msgid ');
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buf.append(Message.formatId(this.id));
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if (this.pluralId != null) {
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buf.append('msgid_plural ');
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buf.append(Message.formatId(this.pluralId));
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buf.append('msgstr[0] ""\nmsgstr[1] ""\n')
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} else {
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buf.append('msgstr ""\n')
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}
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buf.append("\n");
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return;
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};
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/**
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* @constructor
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*/
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var MessageParser = function() {
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this.messages = {};
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return this;
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};
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/**
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* Object containing the accepted function names, currently
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* supported are "gettext", "ngettext" and "_". This is used
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* as a lookup map during function file parsing.
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* @type Object
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*/
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MessageParser.FUNCTION_NAMES = {
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"_": true,
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"gettext": true,
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"ngettext": true,
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"markgettext": true
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};
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/**
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* The name of the gettext macro
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* @type String
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*/
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MessageParser.MACRO_NAME = "message";
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/**
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* The name of the macro attribute that will be interpreted
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* as gettext attribute.
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* @type String
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*/
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MessageParser.ATTRIBUTE_NAME = MessageParser.MACRO_NAME;
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/**
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* A regular expression for parsing macros in a skin. The result
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* of this regular expression contains:
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* result[1] = macro handler name (can be empty for global macros)
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* result[2] = macro name
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* result[3] = the macro's attributes
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* @type RegExp
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*/
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MessageParser.REGEX_MACRO = /<%\s*(?:([\w]+)\.)?([\w]+)\s+([^%]+?)\s*%>/gm;
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/**
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* A regular expression for parsing the attributes of a macro. The result
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* of this regular expression contains:
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* result[1] = attribute name
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* result[2] = attribute value
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* @type RegExp
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*/
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MessageParser.REGEX_PARAM = /([\w]*)\s*=\s*["'](.*?)["']\s*(?=\w+=|$)/gm;
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/**
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* Calculates the line number in the string passed as argument
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* at which the specified index position is located.
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* @param {String} str The source string
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* @param {Number} idx The index position to get the line number for.
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* @returns The line number of the index position in the source string.
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* @type Number
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*/
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MessageParser.getLineNum = function(str, idx) {
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return str.substring(0, idx).split(/.*(?:\r\n|\n\r|\r|\n)/).length;
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};
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/**
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* Parses the file passed as argument. If the file
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* is a directory, this method recurses down the directory
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* tree and parses all skin and function files.
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* @param {java.io.File} file The file or directory to start at.
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* @param {String} encoding The encoding to use
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*/
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MessageParser.prototype.parse = function(file, encoding) {
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if (file.isDirectory()) {
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var list = file.list();
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for (var i=0;i<list.length;i++) {
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this.parse(new java.io.File(file, list[i]), encoding);
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}
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} else {
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var fName, dotIdx;
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fName = file.getName();
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if ((dotIdx = fName.lastIndexOf(".")) > -1) {
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switch (String(fName.substring(dotIdx+1))) {
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case "skin":
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print("Parsing skin file " + file.getAbsolutePath() + "...");
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this.parseSkinFile(file, encoding);
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break;
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case "hac":
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case "js":
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print("Parsing function file " + file.getAbsolutePath() + "...");
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this.parseFunctionFile(file, encoding);
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break;
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default:
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break;
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}
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}
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}
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return;
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};
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/** @ignore */
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MessageParser.prototype.toString = function() {
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return "[Jala Message Parser]";
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};
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/**
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* Parses a .js file and creates Message instances for all
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* calls of "gettext", "ngettext", "markgettext" and "_".
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* @param {java.io.File} file The function file to parse
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* @param {String} encoding The encoding to use
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*/
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MessageParser.prototype.parseFunctionFile = function(file, encoding) {
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var fis = new java.io.FileInputStream(file);
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var isr = new java.io.InputStreamReader(fis, encoding || "UTF-8");
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var reader = new java.io.BufferedReader(isr);
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var tokenizer = new java.io.StreamTokenizer(reader);
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var messages = [], stack = [];
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var c;
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while ((c = tokenizer.nextToken()) != java.io.StreamTokenizer.TT_EOF) {
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switch (c) {
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case java.io.StreamTokenizer.TT_WORD:
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if (MessageParser.FUNCTION_NAMES[tokenizer.sval] == true) {
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stack.push({name: tokenizer.sval, lineNr: tokenizer.lineno()});
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} else if (stack.length > 0) {
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// it's something else than a string argument inside a gettext method call
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// so finalize the argument parsing here as we aren't interested in that
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messages.push(stack.pop());
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}
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break;
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case java.io.StreamTokenizer.TT_NUMBER:
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break;
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default:
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if (stack.length > 0) {
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if ("\u0028".charCodeAt(0) == c) {
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// start of arguments (an opening bracket)
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stack[stack.length-1].args = [];
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} else if ("\u0029".charCodeAt(0) == c) {
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// end of arguments (a closing bracket)
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messages.push(stack.pop());
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} else if ("\u0022".charCodeAt(0) == c || "\u0027".charCodeAt(0) == c) {
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// a quoted string argument
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stack[stack.length-1].args.push(tokenizer.sval);
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}
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}
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break;
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}
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}
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if (messages.length > 0) {
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var msgParam, key, msg;
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for (var i=0;i<messages.length;i++) {
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msgParam = messages[i];
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if (msgParam.args && msgParam.args.length > 0) {
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key = Message.getKey(msgParam.args[0]);
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if (!(msg = this.messages[key])) {
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this.messages[key] = msg = new Message(msgParam.args[0], msgParam.args[1]);
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}
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if (!msg.pluralId && msgParam.args.length > 1) {
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msg.pluralId = msgParam.args[1];
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}
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msg.addLocation(file.getAbsolutePath(), msgParam.lineNr);
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}
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}
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}
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fis.close();
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isr.close();
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reader.close();
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return;
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};
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/**
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* Parses a skin file and creates Message instances for
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* all macros which name is either "message" or
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* that have attributes named "message" and optional
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* "plural"
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* @param {java.io.File} file The skin file to parse
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* @param {String} encoding The encoding to use
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*/
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MessageParser.prototype.parseSkinFile = function(file, encoding) {
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var content = readFile(file.getAbsolutePath(), encoding || "UTF-8");
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var macro, id, pluralId, params, key;
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while (macro = MessageParser.REGEX_MACRO.exec(content)) {
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while (params = MessageParser.REGEX_PARAM.exec(macro[3])) {
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if (macro[2] == MessageParser.MACRO_NAME) {
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if (params[1] == "text") {
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id = params[2];
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pluralId = null;
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} else if (params[1] == "plural") {
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pluralId = params[2];
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}
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} else {
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if (params[1] == MessageParser.ATTRIBUTE_NAME) {
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id = params[2];
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pluralId = null;
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} else if (params[1] == "plural") {
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pluralId = params[2];
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}
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}
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}
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if (id != null) {
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// create new Message instance or update the existing one
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key = Message.getKey(id);
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if (!(msg = this.messages[key])) {
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this.messages[key] = msg = new Message(id, pluralId, file.getAbsolutePath());
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}
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msg.addLocation(file.getAbsolutePath(),
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MessageParser.getLineNum(content, macro.index));
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}
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}
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return;
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};
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/**
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* Prints a standard Header of a .po file
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* FIXME: why the hell is Plural-Forms ignored in poEdit?
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* @see http://drupal.org/node/17564
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*/
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MessageParser.prototype.getPotString = function() {
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var buf = new java.lang.StringBuffer();
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buf.append('# SOME DESCRIPTIVE TITLE.\n');
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buf.append('# Copyright (C) YEAR THE PACKAGE\'S COPYRIGHT HOLDER\n');
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buf.append('# This file is distributed under the same license as the PACKAGE package.\n');
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buf.append('# FIRST AUTHOR <EMAIL@ADDRESS>, YEAR.\n');
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buf.append('#\n');
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buf.append('#, fuzzy\n');
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buf.append('msgid ""\n');
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buf.append('msgstr ""\n');
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buf.append('"Project-Id-Version: PACKAGE VERSION\\n"\n');
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buf.append('"Report-Msgid-Bugs-To: \\n"\n');
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var sdf = new java.text.SimpleDateFormat("yyyy-MM-dd HH:mmZ");
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buf.append('"POT-Creation-Date: ' + sdf.format(new java.util.Date()) + '\\n"\n');
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buf.append('"PO-Revision-Date: YEAR-MO-DA HO:MI+ZONE\\n"\n');
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buf.append('"Last-Translator: FULL NAME <EMAIL@ADDRESS>\\n"\n');
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buf.append('"Language-Team: LANGUAGE <LL@li.org>\\n"\n');
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buf.append('"MIME-Version: 1.0\\n"\n');
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buf.append('"Content-Type: text/plain; charset=utf-8\\n"\n');
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buf.append('"Content-Transfer-Encoding: 8bit\\n"\n');
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buf.append('"Plural-Forms: nplurals=2; plural=(n != 1);\\n"\n');
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buf.append('\n');
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// sort all messages by their singular key
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var keys = [];
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for (var i in this.messages) {
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keys[keys.length] = this.messages[i].id;
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}
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keys.sort();
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// add all the messages
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for (var i=0;i<keys.length;i++) {
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this.messages[keys[i]].write(buf);
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}
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return buf.toString();
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};
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/**
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* Write the parsed contents into the file passed as argument.
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* @param {java.io.File} file The file to write to
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*/
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MessageParser.prototype.writeToFile = function(file) {
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var writer = new java.io.FileWriter(file);
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writer.write(new java.lang.String(this.getPotString().getBytes("UTF-8")));
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writer.close();
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return;
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};
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/**
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* Main script body
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*/
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var toParse = [];
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var arg, outFile, file, fileEncoding;
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for (var i=0;i<arguments.length;i++) {
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arg = arguments[i];
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if (arg.indexOf("-o") === 0 && i < arguments.length -1) {
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outFile = new java.io.File(arguments[i += 1]);
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} else if (arg.indexOf("-e") === 0 && i < arguments.length -1) {
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fileEncoding = arguments[i += 1];
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} else {
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// add argument to list of files and directories to parse
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toParse.push(new java.io.File(arg));
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}
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}
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// start parsing
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var parser = new MessageParser();
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for (var i=0;i<toParse.length;i++) {
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parser.parse(toParse[i], fileEncoding);
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}
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if (outFile != null) {
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parser.writeToFile(outFile);
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} else {
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print(parser.getPotString());
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}
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