YRB(.pres) support for language bundles

README.md

@@ -21,7 +21,7 @@ Documentation
 Build Status
 ------------
 
-[![Build Status](https://secure.travis-ci.org/yui/shifter.png?branch=master)](http://travis-ci.org/yui/shifter)
+[![Build Status](https://secure.travis-ci.org/dmi3y/shifter.png?branch=master)](http://travis-ci.org/dmi3y/shifter)
 
 Install
 -------

lib/module.js

@@ -403,11 +403,105 @@ var buildCoverage = function (mod, name, callback) {
             }
             callback();
         });
-
 };
 
 exports.coverage = buildCoverage;
 
+/**
+ * Extract heredoc block
+ *
+ * @param  {Sting} value        start line of heredoc with token
+ * @param  {Int} ix             index of the buffer where heredoc starts
+ * @param  {Array} buffer       raw array from YRB(.pres)
+ * @return {Object} heredoc     value from heredoc block plus new index to continue into parsePrestoJson method
+ */
+var getHeredocString = function(value, ix, buffer) {
+    var
+        token = value.replace('<<<', '').trim(),
+        heredoc = {};
+    value = [];
+
+    while ( buffer[ix].indexOf(token) === -1) {
+        el = buffer[ix];
+        if (el.indexOf('#') !== 0) {
+            value.push(el);
+        }
+        ix += 1;
+    }
+    heredoc.value = value.join('\\n');
+    heredoc.ix = ix + 1;
+    return heredoc;
+};
+
+/**
+ * Parsing YRB(.pres) file content string to a la Json format
+ * http://yuilibrary.com/yui/docs/intl/#yrb
+ *
+ * @param  {String} presStr   YRB formatted string
+ * @return {String} buffer    Json parsed string from YRB
+ */
+var parsePresToJson = function (presStr) {
+    var
+        buffer,
+        key,
+        value,
+        ixof,
+        el, ix = 0, len,
+        heredoc,
+        line = [],
+        buff = [];
+
+    buffer = presStr.split(/\r\n|\n|\r/);
+    len = buffer.length;
+
+    for (;ix < len;) {
+        el = buffer[ix++];
+        line = [];
+
+        el = el.trim();
+        if (el && el.indexOf('#') !== 0) {
+            key = el.split('=', 1).pop().trim();
+            line.push(key);
+
+            ixof = el.indexOf('=');
+            value = el.slice(++ixof).trim();
+
+            if ( value.indexOf('<<<') === 0 ) {
+                heredoc = getHeredocString(value, ix, buffer);
+                value = heredoc.value;
+                ix = heredoc.ix;
+            }
+
+            line.push('"' + value + '"');
+
+            buff.push(line.join(':'));
+        }
+    }
+
+    buffer = '{' + buff.join(',') + '}';
+    return buffer;
+};
+
+/**
+ * Reads the file in either a la Json(.js) or YRB(.pres)
+ * formats, and return content in Json
+ *
+ * @param  {String} modName
+ * @return {String} output
+ */
+var getLangJsonSting = function (modName) {
+    var
+        output,
+        fileExtention = ((fs.existsSync(path.join(shifter.cwd(), 'lang', modName + '.js'))? '.js': '.pres'));
+        fileNameReadFrom = modName + fileExtention;
+    output = fs.readFileSync(path.join(shifter.cwd(), 'lang', fileNameReadFrom), 'utf8');
+    if (fileExtention === '.pres') {
+        log.info('parsing lang Json from YRB source ' + fileNameReadFrom );
+        output = parsePresToJson(output);
+    }
+    return output;
+};
+
 var buildLang = function (mod, name, callback) {
     var langs = [''].concat(mod.config.lang),
         stack = new Stack();
@@ -421,7 +515,7 @@ var buildLang = function (mod, name, callback) {
             }),
             modName = name + (lang ? '_' + lang : ''),
             fileName = modName + '.js',
-            strings = fs.readFileSync(path.join(shifter.cwd(), 'lang', fileName), 'utf8');
+            strings = getLangJsonSting(modName);
 
         queue.read([path.join(__dirname, '../files/langtemplate.txt')])
             .replace(replaceOptions)