# Pastebin qLEeWr4x
function stringify (obj) {
  var str = '', key;
  for (key in obj) {
    let v = obj[key];
    if (v == null) {
      str += `${key}="" `;
      continue;
    }
    if (regex.test(v)) {
      str += `${key}="${v.toString().replace(escape_replace_regex, '\\$&')}" `;
    }
    else {
      str += `${key}="${v.toString()}" `;
    }
  }
  return str.substr(0, str.length - 1);
};