',
            $content
        );
    }
    /* 过滤网易云音乐单首歌 */
    if (preg_match('/\[music\s{0,}id="\d{0,}"\s{0,}\/\]/SU', $content)) {
        $content = preg_replace(
            '/\[music\s{0,}id="(\d{0,})"\s{0,}\/\]/SU',
            '',
            $content
        );
    }
    /* 过滤dplayer播放器 */
    if (preg_match('/\[dplayer\s{0,}src=".{0,}"\s{0,}\/\]/SU', $content)) {
        $player = Helper::options()->JCustomPlayer ? Helper::options()->JCustomPlayer : '/usr/themes/Joe/library/player.php?url=';
        $content = preg_replace(
            '/\[dplayer\s{0,}src="(.{0,})"\s{0,}\/\]/SU',
            '',
            $content
        );
    }
    /* 过滤bilibili播放器 */
    if (preg_match('/\[bilibili\s{0,}bvid="\w{0,}"\s{0,}\/\]/SU', $content)) {
        $content = preg_replace(
            '/\[bilibili\s{0,}bvid="(\w{0,})"\s{0,}\/\]/SU',
            '',
            $content
        );
    }
    /* 过滤完成任务勾选 */
    if (preg_match('/\[x\]/SU', $content)) {
        $content = preg_replace(
            '/\[x\]/SU',
            '',
            $content
        );
    }
    /* 过滤未完成任务勾选 */
    if (preg_match('/\[\s{1}\]/SU', $content)) {
        $content = preg_replace(
            '/\[\s{1}\]/SU',
            '',
            $content
        );
    }
    /* 过滤默认卡片 */
    if (preg_match('/\[card-default\s{0,}width=".{0,}"\s{0,}label=".{0,}"\].{0,}\[\/card-default\]/sSU', $content)) {
        $content = preg_replace(
            '/\[card-default\s{0,}width="(.{0,})"\s{0,}label="(.{0,})"\](.{0,})\[\/card-default\]/sSU',
            '
                $2
                $3
             ',
            $content
        );
    }
    /* 过滤消息提示 */
    if (preg_match('/\[message\s{0,}type="success|info|warning|error"\s{0,}\].{0,}\[\/message\]/sSU', $content)) {
        $content = preg_replace(
            '/\[message\s{0,}type="(success|info|warning|error)"\s{0,}\](.{0,})\[\/message\]/sSU',
            '
                
                $2
             ',
            $content
        );
    }
     /* 过滤居中标题 */
     if (preg_match('/\[mtitle\].{0,}\[\/mtitle\]/sSU', $content)) {
        $content = preg_replace(
            '/\[mtitle\](.{0,})\[\/mtitle\]/sSU',
            '
                $1
             ',
            $content
        );
    }
    return $content;
}