Little script to convert lua tables into json

luaTableToJson.coffee

pako = require('pako') ## https://www.npmjs.com/package/pako

convertDataURIToBinary = (dataURI) ->
  raw = window.atob(dataURI)
  rawLength = raw.length
  array = new Uint8Array(new ArrayBuffer(rawLength))
  i = 0
  while i < rawLength
    array[i] = raw.charCodeAt(i)
    i++
  array

luaTableToJson = (string)->
  data = convertDataURIToBinary(string)
  rawData = pako.ungzip(data)
  str = String.fromCharCode.apply(null, rawData);
  ## this may or may not be required, it was for my applicaiton
  str = str.replace("do local _=", '')
  str = str.replace(/\=/g, ':');
  string = str.replace(";return _;end", '')

  string = string.replace(/\{([a-zA-z]*)\:/g, "\{\"$1\":");
  string = string.replace(/\,([a-zA-z]*)\:/g, "\,\"$1\":");
  string = string.replace(/\[([0-9]*)\]\:/g, "\"$1\":");
  string = string.replace(/{{/g, "[{");
  string = string.replace(/}}/g, "}]");
  string = string.replace(/}],{/g, "}},{");
  string = string.replace(/}]}/g, "}}}");
  JSON.parse(string)