Problem mit "wpautop"

function wpautop($pee, $br = true) {
        $pre_tags = array();


        if ( trim($pee) === '' )
                return '';


        $pee = $pee . "\n"; // just to make things a little easier, pad the end


        if ( strpos($pee, '<pre') !== false ) {
                $pee_parts = explode( '</pre>', $pee );
                $last_pee = array_pop($pee_parts);
                $pee = '';
                $i = 0;


                foreach ( $pee_parts as $pee_part ) {
                        $start = strpos($pee_part, '<pre');


                        // Malformed html?
                        if ( $start === false ) {
                                $pee .= $pee_part;
                                continue;
                        }


                        $name = "<pre wp-pre-tag-$i></pre>";
                        $pre_tags[$name] = substr( $pee_part, $start ) . '</pre>';


                        $pee .= substr( $pee_part, 0, $start ) . $name;
                        $i++;
                }


                $pee .= $last_pee;
        }


        $pee = preg_replace('|<br />\s*<br />|', "\n\n", $pee);
        // Space things out a little
        $allblocks = '(?:table|thead|tfoot|caption|col|colgroup|tbody|tr|td|th|div|dl|dd|dt|ul|ol|li|pre|select|option|form|map|area|blockquote|address|math|style|p|h[1-6]|hr|fieldset|legend|section|article|aside|hgroup|header|footer|nav|figure|figcaption|details|menu|summary)';
        $pee = preg_replace('!(<' . $allblocks . '[^>]*>)!', "\n$1", $pee);
        $pee = preg_replace('!(</' . $allblocks . '>)!', "$1\n\n", $pee);
        $pee = str_replace(array("\r\n", "\r"), "\n", $pee); // cross-platform newlines
        if ( strpos($pee, '<object') !== false ) {
                $pee = preg_replace('|\s*<param([^>]*)>\s*|', "<param$1>", $pee); // no pee inside object/embed
                $pee = preg_replace('|\s*</embed>\s*|', '</embed>', $pee);
        }
        $pee = preg_replace("/\n\n+/", "\n\n", $pee); // take care of duplicates
        // make paragraphs, including one at the end
        $pees = preg_split('/\n\s*\n/', $pee, -1, PREG_SPLIT_NO_EMPTY);
        $pee = '';
        foreach ( $pees as $tinkle )
                $pee .= '<p>' . trim($tinkle, "\n") . "</p>\n";
        $pee = preg_replace('|<p>\s*</p>|', '', $pee); // under certain strange conditions it could create a P of entirely whitespace
        $pee = preg_replace('!<p>([^<]+)</(div|address|form)>!', "<p>$1</p></$2>", $pee);
        $pee = preg_replace('!<p>\s*(</?' . $allblocks . '[^>]*>)\s*</p>!', "$1", $pee); // don't pee all over a tag
        $pee = preg_replace("|<p>(<li.+?)</p>|", "$1", $pee); // problem with nested lists
        $pee = preg_replace('|<p><blockquote([^>]*)>|i', "<blockquote$1><p>", $pee);
        $pee = str_replace('</blockquote></p>', '</p></blockquote>', $pee);
        $pee = preg_replace('!<p>\s*(</?' . $allblocks . '[^>]*>)!', "$1", $pee);
        $pee = preg_replace('!(</?' . $allblocks . '[^>]*>)\s*</p>!', "$1", $pee);
        if ( $br ) {
                $pee = preg_replace_callback('/<(script|style).*?<\/\\1>/s', '_autop_newline_preservation_helper', $pee);
                $pee = preg_replace('|(?<!<br />)\s*\n|', "<br />\n", $pee); // optionally make line breaks
                $pee = str_replace('<WPPreserveNewline />', "\n", $pee);
        }
        $pee = preg_replace('!(</?' . $allblocks . '[^>]*>)\s*<br />!', "$1", $pee);
        $pee = preg_replace('!<br />(\s*</?(?:p|li|div|dl|dd|dt|th|pre|td|ul|ol)[^>]*>)!', '$1', $pee);
        $pee = preg_replace( "|\n</p>$|", '</p>', $pee );


        if ( !empty($pre_tags) )
                $pee = str_replace(array_keys($pre_tags), array_values($pre_tags), $pee);


        return $pee;
}