Add JSHint. Fix style and some potential bugs.

.gitignore

@@ -0,0 +1 @@
+/node_modules

.jshintrc

@@ -0,0 +1,14 @@
+{
+  "curly": true,
+  "eqeqeq": true,
+  "immed": true,
+  "latedef": true,
+  "newcap": true,
+  "noarg": true,
+  "sub": true,
+  "undef": true,
+  "boss": true,
+  "eqnull": true,
+  "node": true,
+  "white": true
+}

Gruntfile.coffee

@@ -0,0 +1,18 @@
+module.exports = (grunt) ->
+    @loadNpmTasks('grunt-contrib-jshint')
+    @loadNpmTasks('grunt-contrib-watch')
+
+    @initConfig
+        jshint:
+            all: [ 'lib/*.js' ]
+            options:
+                jshintrc: '.jshintrc'
+
+        watch:
+            all:
+                files: ['lib/**.js', 'test/*/*']
+                tasks: ['test']
+
+    @registerTask 'default', ['test']
+    @registerTask 'build', ['jshint']
+    @registerTask 'test', ['build']

lib/po.js

@@ -1,9 +1,9 @@
-var fs = require('fs')
-  , util = require('util');
+var fs = require('fs'),
+    util = require('util');
 
 function trim(string) {
     return string.replace(/^\s+|\s+$/g, '');
-};
+}
 
 var PO = function () {
     this.comments = [];
@@ -13,14 +13,19 @@ var PO = function() {
 
 PO.prototype.save = function (filename, callback) {
     fs.writeFile(filename, this.toString(), function (err) {
-    if (err) throw err;
-    callback && callback();
+        if (err) {
+            throw err;
+        }
+
+        if (callback) {
+            callback();
+        }
     });
 };
 
 PO.prototype.toString = function () {
-  var lines = []
-    , that = this;
+    var lines = [],
+        that = this;
 
     if (this.comments) {
         this.comments.forEach(function (comment) {
@@ -48,19 +53,21 @@ PO.prototype.toString = function() {
 
 PO.load = function (filename, callback) {
     fs.readFile(filename, 'utf-8', function (err, data) {
-    if (err) throw err;
+        if (err) {
+            throw err;
+        }
         var po = PO.parse(data);
-    callback && callback(po);
+        callback(po);
     });
 };
 
 PO.parse = function (data) {
     //support both unix and windows newline formats.
     data = data.replace(/\r\n/g, '\n');
-    var po = new PO
-    , sections = data.split(/\n\n/)
-    , headers = sections.shift()
-    , lines = sections.join("\n").split(/\n/);
+    var po = new PO(),
+        sections = data.split(/\n\n/),
+        headers = sections.shift(),
+        lines = sections.join("\n").split(/\n/);
 
     po.headers = {
         'Project-Id-Version': '',
@@ -81,23 +88,23 @@ PO.parse = function(data) {
         }
         if (header.match(/^"/)) {
             header = header.trim().replace(/^"/, '').replace(/\\n"$/, '');
-      var p = header.split(/:/)
-        , name = p.shift().trim()
-        , value = p.join(':').trim();
+            var p = header.split(/:/),
+                name = p.shift().trim(),
+                value = p.join(':').trim();
             po.headers[name] = value;
         }
     });
 
-  var item = new PO.Item()
-    , context = null
-    , plural = 0;
+    var item = new PO.Item(),
+        context = null,
+        plural = 0;
 
     function finish() {
         if (item.msgid.length > 0) {
             po.items.push(item);
             item = new PO.Item();
         }
-  };
+    }
 
     function extract(string) {
         string = trim(string);
@@ -105,11 +112,11 @@ PO.parse = function(data) {
         string = string.replace(/\\"/g, '"');
         string = string.replace(/\\\\/g, '\\');
         return string;
-  };
+    }
 
     while (lines.length > 0) {
-    var line = trim(lines.shift())
-      , add = false;
+        var line = trim(lines.shift()),
+            add = false;
         if (line.match(/^#:/)) { // Reference
             finish();
             item.references.push(trim(line.replace(/^#:/, '')));
@@ -131,22 +138,22 @@ PO.parse = function(data) {
             var m = line.match(/^msgstr\[(\d+)\]/);
             plural = m && m[1] ? parseInt(m[1]) : 0;
             item.msgstr[plural] = extract(line);
-      context = 'msgstr'
+            context = 'msgstr';
         }
         else { // Probably multiline string or blank
             if (line.length > 0) {
-        if (context == 'msgstr') {
+                if (context === 'msgstr') {
                     item.msgstr[plural] += extract(line);
                 }
-        else if (context == 'msgid') {
+                else if (context === 'msgid') {
                     item.msgid += extract(line);
                 }
-        else if (context == 'msgid_plural') {
+                else if (context === 'msgid_plural') {
                     item.msgid_plural += extract(line);
                 }
             }
         }
-  };
+    }
     finish();
 
     return po;
@@ -161,30 +168,30 @@ PO.Item = function() {
 };
 
 PO.Item.prototype.toString = function () {
-  var lines = []
-    , that = this;
+    var lines = [],
+        that = this;
 
     var _process = function (keyword, text, i) {
-    var lines = []
-      , parts = text.split(/\n/)
-      , index = typeof i != 'undefined' ? util.format('[%d]', i) : '';
+        var lines = [],
+            parts = text.split(/\n/),
+            index = typeof i !== 'undefined' ? util.format('[%d]', i) : '';
         if (parts.length > 1) {
             lines.push(util.format('%s%s ""', keyword, index));
             parts.forEach(function (part) {
-        lines.push(util.format('"%s"', part))
+                lines.push(util.format('"%s"', part));
             });
         }
         else {
             lines.push(util.format('%s%s "%s"', keyword, index, text));
         }
         return lines;
-  }
+    };
 
     if (this.references.length > 0) {
         this.references.forEach(function (ref) {
             lines.push(util.format('#: %s', ref));
         });
-  };
+    }
 
     ['msgid', 'msgid_plural', 'msgstr'].forEach(function (keyword) {
         var text = that[keyword];

package.json

@@ -4,8 +4,21 @@
   "version": "0.1.1",
   "author": "Mike Holly",
   "homepage": "http://github.com/mikejholly/node-po",
-  "repository"    : {"type" : "git", "url" : "http://github.com/mikejholly/node-po.git"},
-  "dependencies"  : [],
+  "repository": {
+    "type": "git",
+    "url": "http://github.com/mikejholly/node-po.git"
+  },
   "main": "./lib/po",
-  "keywords"      : ["i18n", "l10n", "gettext", "mo", "po"]
+  "keywords": [
+    "i18n",
+    "l10n",
+    "gettext",
+    "mo",
+    "po"
+  ],
+  "devDependencies": {
+    "grunt": "~0.4.2",
+    "grunt-contrib-watch": "~0.5.3",
+    "grunt-contrib-jshint": "~0.7.2"
+  }
 }