public function getUri()
    {
        $uri = trim($this->getRawUri());

        // absolute URL?
        if (null !== parse_url($uri, PHP_URL_SCHEME)) {
            return $uri;
        }

        // empty URI
        if (!$uri) {
            return $this->currentUri;
        }

        // an anchor
        if ('#' === $uri[0]) {
            return $this->cleanupAnchor($this->currentUri).$uri;
        }

        $baseUri = $this->cleanupUri($this->currentUri);

        if ('?' === $uri[0]) {
            return $baseUri.$uri;
        }

        // absolute URL with relative schema
        if (0 === strpos($uri, '//')) {
            return preg_replace('#^([^/]*)//.*$#', '$1', $baseUri).$uri;
        }

        $baseUri = preg_replace('#^(.*?//[^/]*)(?:\/.*)?$#', '$1', $baseUri);

        // absolute path
        if ('/' === $uri[0]) {
            return $baseUri.$uri;
        }

        // relative path
        $path = parse_url(substr($this->currentUri, strlen($baseUri)), PHP_URL_PATH);
        $path = $this->canonicalizePath(substr($path, 0, strrpos($path, '/')).'/'.$uri);

        return $baseUri.('' === $path || '/' !== $path[0] ? '/' : '').$path;
    }