protected function clear()
    {
        $this->scheme       = null;
        $this->host         = null;
        $this->port         = null;
        $this->user         = null;
        $this->pass         = null;
        $this->pathSegments = [];
        $this->parameters   = [];
        $this->fragment     = null;
        $this->orignalValue = $this->returnValue  = '';
        return $this->parse();
    }