Extra escapey JSON encoding for node.js

escaped-json.js

// preserve Twitter's style of JSON string encoding...
// escape higher value unicode (lowercase hex)
// escape < and > (uppercase hex)
// escape / in strings (\/)
// hugs! https://gist.github.com/1306986
// http://stackoverflow.com/questions/4901133/json-and-escaping-characters
function escapedStringify(s, emit_unicode) {
   var json = JSON.stringify(s);
   return emit_unicode ? json : json.replace(/\//g,
      function(c) {
        return '\\/';
      }
   ).replace(/[\u003c\u003e]/g,
      function(c) {
        return '\\u'+('0000'+c.charCodeAt(0).toString(16)).slice(-4).toUpperCase();
      }
   ).replace(/[\u007f-\uffff]/g,
      function(c) {
        return '\\u'+('0000'+c.charCodeAt(0).toString(16)).slice(-4);
      }
   );
}

module.exports = {
  stringify: escapedStringify
};