class Content{

    /**
     * 替换文章输出实现短代码功能
     * Author：Wibus
     * Date：12-27
     */

    function echoSomeFunny(){
    
            $db = Typecho_Db::get();
        $sql = $db->select()->from('table.comments')
            ->where('cid = ?',$this->cid)
            ->where('mail = ?', $this->remember('mail',true))
            ->where('status = ?', 'approved')
        //只有通过审核的评论才能看回复可见内容
            ->limit(1);
        $result = $db->fetchAll($sql);

        if($this->user->hasLogin() || $result) {
            $content = preg_replace("/\[hide\](.*?)\[\/hide\]/sm",'<div class="reply2view">$1</div>',$this->content);
        }
        else{
            $content = preg_replace("/\[hide\](.*?)\[\/hide\]/sm",'<div class="reply2view">此处内容需要评论回复后方可阅读。</div>',$this->content);
        }
        echo $content;
    }
}

return $text;

/**
 * 短代码模块
 * Author：Wibus
 * 参照项目：Wordpress handsome
 * Date：2020-12-27
 * 相关function：
 * get_shortcode_regex，shortcode_parse_atts，get_shortcode_atts_regex，get_markdown_regex，scodeParseCallback，parseContentPublic，postContent，postContentHtml
 */

/**
 * 获取匹配短代码的正则表达式
 * Date: 2020-12-27
 * @param null $tagnames
 * @return string
 * @link https://github.com/WordPress/WordPress/blob/master/wp-includes/shortcodes.php#L254
 */
public static function get_shortcode_regex($tagnames = null)
{
    global $shortcode_tags;
    if (empty($tagnames)) {
        $tagnames = array_keys($shortcode_tags);
    }
    $tagregexp = join('|', array_map('preg_quote', $tagnames));
    // WARNING! Do not change this regex without changing do_shortcode_tag() and strip_shortcode_tag()
    // Also, see shortcode_unautop() and shortcode.js.
    // phpcs:disable Squiz.Strings.ConcatenationSpacing.PaddingFound -- don't remove regex indentation
    return
        '\\['                                // Opening bracket
        . '(\\[?)'                           // 1: Optional second opening bracket for escaping shortcodes: [[tag]]
        . "($tagregexp)"                     // 2: Shortcode name
        . '(?![\\w-])'                       // Not followed by word character or hyphen
        . '('                                // 3: Unroll the loop: Inside the opening shortcode tag
        . '[^\\]\\/]*'                   // Not a closing bracket or forward slash
        . '(?:'
        . '\\/(?!\\])'               // A forward slash not followed by a closing bracket
        . '[^\\]\\/]*'               // Not a closing bracket or forward slash
        . ')*?'
        . ')'
        . '(?:'
        . '(\\/)'                        // 4: Self closing tag ...
        . '\\]'                          // ... and closing bracket
        . '|'
        . '\\]'                          // Closing bracket
        . '(?:'
        . '('                        // 5: Unroll the loop: Optionally, anything between the opening and closing shortcode tags
        . '[^\\[]*+'             // Not an opening bracket
        . '(?:'
        . '\\[(?!\\/\\2\\])' // An opening bracket not followed by the closing shortcode tag
        . '[^\\[]*+'         // Not an opening bracket
        . ')*+'
        . ')'
        . '\\[\\/\\2\\]'             // Closing shortcode tag
        . ')?'
        . ')'
        . '(\\]?)';                          // 6: Optional second closing brocket for escaping shortcodes: [[tag]]
    // phpcs:enable
}

/**
 * 获取短代码属性数组
 * Date: 2020-12-27
 * @param $text
 * @return array|string
 * @link https://github.com/WordPress/WordPress/blob/master/wp-includes/shortcodes.php#L508
 */
public static function shortcode_parse_atts($text)
{
    $atts = array();
    $pattern = self::get_shortcode_atts_regex();
    $text = preg_replace("/[\x{00a0}\x{200b}]+/u", ' ', $text);
    if (preg_match_all($pattern, $text, $match, PREG_SET_ORDER)) {
        foreach ($match as $m) {
            if (!empty($m[1])) {
                $atts[strtolower($m[1])] = stripcslashes($m[2]);
            } elseif (!empty($m[3])) {
                $atts[strtolower($m[3])] = stripcslashes($m[4]);
            } elseif (!empty($m[5])) {
                $atts[strtolower($m[5])] = stripcslashes($m[6]);
            } elseif (isset($m[7]) && strlen($m[7])) {
                $atts[] = stripcslashes($m[7]);
            } elseif (isset($m[8]) && strlen($m[8])) {
                $atts[] = stripcslashes($m[8]);
            } elseif (isset($m[9])) {
                $atts[] = stripcslashes($m[9]);
            }
        }
        // Reject any unclosed HTML elements
        foreach ($atts as &$value) {
            if (false !== strpos($value, '<')) {
                if (1 !== preg_match('/^[^<]*+(?:<[^>]*+>[^<]*+)*+$/', $value)) {
                    $value = '';
                }
            }
        }
    } else {
        $atts = ltrim($text);
    }
    return $atts;
}

/**
 * Retrieve the shortcode attributes regex.
 * Date: 2020-12-27
 * @return string The shortcode attribute regular expression
 * @since 4.4.0
 *
 */
public static function get_shortcode_atts_regex()
{
    return '/([\w-]+)\s*=\s*"([^"]*)"(?:\s|$)|([\w-]+)\s*=\s*\'([^\']*)\'(?:\s|$)|([\w-]+)\s*=\s*([^\s\'"]+)(?:\s|$)|"([^"]*)"(?:\s|$)|\'([^\']*)\'(?:\s|$)|(\S+)(?:\s|$)/';
}

public static function get_markdown_regex($tagName = '?')
{
    return '\\' . $tagName . '&gt; (.*)(\n\n)?';

}

    /**
     * 短代码解析正则替换回调函数
     * Date: 2020-12-27
     * Style: Super_Code
     * @param $matches
     * @return bool|string
     */
    public static function scodeParseCallback($matches)
    {
        // 不解析类似 [[player]] 双重括号的代码
        if ($matches[1] == '[' && $matches[6] == ']') {
            return substr($matches[0], 1, -1);
        }
        //[scode type="share"]这是灰色的短代码框，常用来引用资料什么的[/scode]
        $attr = htmlspecialchars_decode($matches[3]);//还原转义前的参数列表
        $attrs = self::shortcode_parse_atts($attr);//获取短代码的参数
        $type = "info";
        switch (@$attrs['type']) {
//example
            case 'yellow': 
                $type = "Scode-Yellow";
                break；     
        }
        return '<div class=" ' . $type . '">'."\n\n" . $matches[5] . "\n".'</div>';
    }

/**
 * 文章解析函数
 * Date: 2020-12-27
 * @param $content
 * @return null|string|string[]
 */
public static function parseContentPublic($content)
{
    //解析短代码功能
    if (strpos($content, '[scode') !== false) {//提高效率，避免每篇文章都要解析
        $pattern = self::get_shortcode_regex(array('scode'));
        $content = preg_replace_callback("/$pattern/", array('Content', 'scodeParseCallback'),
            $content);
    }
        
    return $content;
}

/**
 * 替换+输出文章内容
 * Date: 2020-12-27
 *
 * @param $obj
 * @param $status
 * @param string $way
 * @return string
 */
public static function postContent($obj, $status, $way = "origin")
{
    if ($way == "origin") {
        $content = $obj->content;
    } else {
        $content = $obj->content;

        $content = Content::parseContentPublic($content);
    }
    return trim($content);
  //文章中部分内容隐藏功能（回复后可见）
        if ($status || $result) {
            $content = preg_replace("/\[hide\](.*?)\[\/hide\]/sm", '<div class="hideContent">$1</div>', $content);
        } else {
            $content = preg_replace("/\[hide\](.*?)\[\/hide\]/sm", '<div class="hideContent">' . _mt("此处内容需要评论回复后（审核通过）方可阅读。") . '</div>', $content);
        }
}

public static function postContentHtml($obj, $status)
{

    //$way = "origin";
        
    $content = Content::postContent($obj, $status, $way);
        
    echo $content;

}