Texy\Texy::checkURL PHP Method

    public final function checkURL($URL, $type)
    {
        // absolute URL with scheme? check scheme!
        return empty($this->urlSchemeFilters[$type]) || !preg_match('#\\s*[a-z][a-z0-9+.-]{0,20}:#Ai', $URL) || preg_match($this->urlSchemeFilters[$type], $URL);
    }