Fix JSON loading

Author: cletusw

README.md

@@ -10,6 +10,12 @@
 npm install messageformat-loader
 ```
 
+You'll also need another loader (like [json-loader](https://github.com/webpack/json-loader)) to actually load the JSON strings
+
+```
+npm install json-loader
+```
+
 ## Usage
 
 [Documentation: Using loaders](http://webpack.github.io/docs/using-loaders.html)
@@ -31,7 +37,7 @@ npm install messageformat-loader
 ### example.js
 
 ``` javascript
-var messages = require('messageformat!./messages.json');
+var messages = require('messageformat!json!./messages.json');
 messages['ordinal-example']({ N: 1 });
 // => 'The 1st message.'
 ```

index.js

@@ -1,8 +1,10 @@
 var loaderUtils = require('loader-utils');
 var MessageFormat = require('messageformat');
 
-module.exports = function(source) {
+module.exports = function(content) {
   var query = loaderUtils.parseQuery(this.query);
-  var output = new MessageFormat(query.locale).compile(source).toString('module.exports');
-  return output;
+  var locale = query.locale || 'en';
+  var messages = this.exec(content);
+  var messageFunctions = new MessageFormat(locale).compile(messages).toString('module.exports');
+  return messageFunctions;
 };