sorbetcms/plugins/kodrs.php

<?php

class kodrs extends plugins
{
    public function kodrs()
    {
        if (!defined('GESHI_VERSION')) {
            require_once("geshi/geshi.php");
        }
        $this->addAction('post_content', 'source_code_beautifier');
    }

    public function info()
    {
        return array(
            'name' => 'kodrs',
            'version' => '0.1',
            'author' => 'Pedro Santana',
            'authorurl' => 'http://www.pecesama.net/',
            'license' => 'MIT License',
            'description' => 'Geshify your source codes',
        );
    }

    public function source_code_beautifier()
    {
        global $rows;
        if (count($rows)>0) {
            foreach ($rows as $key=>$post) {
                if ($post["postType"]=="post") {
                    $text = $rows[$key]['Body'];
                    $result = preg_replace_callback("/<code\s+.*lang\s*=\"(.*)\">(.*)<\/code>/siU",
                        array('kodrs', 'replace_with_geshi'),
                        $text
                    );
                    $rows[$key]['Body'] = $result;
                }
            }
        }
    }

    public function replace_with_geshi($matches)
    {
        $lang = strtolower($matches[1])    ;
        $code = trim($matches[2]);
        $geshi = new geshi($code, (isset($lang)) ? $lang : "");
        $geshi->enable_classes(false);
        $geshi->set_overall_id('geshi_code');
        return @$geshi->parse_code();
    }
}