code: function _str(chunk, type) {
    var b, s = '';
    while(this._offset < chunk.length) {
      b = chunk[this._offset];
      if(b === CR && chunk[this._offset + 1] === LF) {
        this._offset += 2;
        return type === ERR ? new Error(s) : this.simple ? new String(s) : s;
      }
      s += String.fromCharCode(b);
      ++this._offset;
    }
  }
docs: Read a simple string (or error).