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/*
    -----------------------------------------------------------------
    Обработка URL в тэгах BBcode
    -----------------------------------------------------------------
    */
    private static function highlight_bbcode_url($var)
    {
        if (!function_exists('process_url')) {
            function process_url($url)
            {
                $home = parse_url(core::$system_set['homeurl']);
                $tmp = parse_url($url[1]);
                if ($home['host'] == $tmp['host'] || isset(core::$user_set['direct_url']) && core::$user_set['direct_url']) {
                    return '<a href="' . $url[1] . '">' . $url[2] . '</a>';
                } else {
                    return '<a target="_blank"  href="' . core::$system_set['homeurl'] . '/go.php?url=' . urlencode(htmlspecialchars_decode($url[1])) . '">' . $url[2] . '</a>';
                }
            }
        }
        return preg_replace_callback('~\\[url=(.+?)\\](.+?)\\[/url\\]~', 'process_url', $var);
    }