Eval JSON, JS, CSON

cson.js

var coffee = require("coffee-script")
var vm = require("vm")
// Based on https://github.com/bevry/cson/blob/master/src/lib/cson.coffee
exports.parse = function (src, isJson) {
  try {
    result = JSON.parse(src)
  } catch (err) {
    if (isJson)
      throw err
    try {
      result = vm.runInNewContext(src)
    } catch (err) {
      // throw error for tree
      result = coffee.eval(src, { sandbox:true })
    }
  }
  return result
}