bbcode_firstpass::bbcode_code PHP Méthode

    function bbcode_code($stx, $in)
    {
        if (!$this->check_bbcode('code', $in)) {
            return $in;
        }
        // We remove the hardcoded elements from the code block here because it is not used in code blocks
        // Having it here saves us one preg_replace per message containing [code] blocks
        // Additionally, magic url parsing should go after parsing bbcodes, but for safety those are stripped out too...
        $htm_match = get_preg_expression('bbcode_htm');
        unset($htm_match[4], $htm_match[5]);
        $htm_replace = array('\\1', '\\1', '\\2', '\\1');
        $out = $code_block = '';
        $open = 1;
        while ($in) {
            // Determine position and tag length of next code block
            preg_match('#(.*?)(\\[code(?:=([a-z]+))?\\])(.+)#is', $in, $buffer);
            $pos = isset($buffer[1]) ? strlen($buffer[1]) : false;
            $tag_length = isset($buffer[2]) ? strlen($buffer[2]) : false;
            // Determine position of ending code tag
            $pos2 = stripos($in, '[/code]');
            // Which is the next block, ending code or code block
            if ($pos !== false && $pos < $pos2) {
                // Open new block
                if (!$open) {
                    $out .= substr($in, 0, $pos);
                    $in = substr($in, $pos);
                    $stx = isset($buffer[3]) ? $buffer[3] : '';
                    $code_block = '';
                } else {
                    // Already opened block, just append to the current block
                    $code_block .= substr($in, 0, $pos) . (isset($buffer[2]) ? $buffer[2] : '');
                    $in = substr($in, $pos);
                }
                $in = substr($in, $tag_length);
                $open++;
            } else {
                // Close the block
                if ($open == 1) {
                    $code_block .= substr($in, 0, $pos2);
                    $code_block = preg_replace($htm_match, $htm_replace, $code_block);
                    // Parse this code block
                    $out .= $this->bbcode_parse_code($stx, $code_block);
                    $code_block = '';
                    $open--;
                } else {
                    if ($open) {
                        // Close one open tag... add to the current code block
                        $code_block .= substr($in, 0, $pos2 + 7);
                        $open--;
                    } else {
                        // end code without opening code... will be always outside code block
                        $out .= substr($in, 0, $pos2 + 7);
                    }
                }
                $in = substr($in, $pos2 + 7);
            }
        }
        // if now $code_block has contents we need to parse the remaining code while removing the last closing tag to match up.
        if ($code_block) {
            $code_block = substr($code_block, 0, -7);
            $code_block = preg_replace($htm_match, $htm_replace, $code_block);
            $out .= $this->bbcode_parse_code($stx, $code_block);
        }
        return $out;
    }