docs: function parse(params) {
    var opts = {};
    var tokens = params.split(/,(?=(?:[^"]|"[^"]*")*$)/);
    for (var i = 0, len = tokens.length; i < len; i++) {
      var param = /(\w+)=["]?([^"]+)["]?$/.exec(tokens[i])
      if (param) {
        opts[param[1]] = param[2];
      }
    }
    return opts;
  }