26     public $host;  variable in HTMLPurifier_URI
51      * @param string $host
58     public function __construct($scheme, $userinfo, $host, $port, $path, $query, $fragment)  argument
62         $this->host = $host;
116         if (!is_null($this->host)) {
118             $this->host = $host_def->validate($this->host, $config, $context);
119             if ($this->host === false) {
120                 $this->host = null;
130         if (!is_null($this->scheme) && is_null($this->host) || $this->host === '') {
154         if (!is_null($this->host)) { // this catches $this->host === ''
226         if (!is_null($this->host)) {
231             $authority .= $this->host;
275         if ($this->host === null) {
279         if ($uri_def->host === $this->host) {