For those that do not follow me on twitter (@pacifika), I've created a patched version of Textile, the html generator alternative to Markdown, to make it easier to use in CodeIgniter projects. I have provided the patch and patched Textile on support forums of both projects.
[Patch] CodeIgniter Helper class patch for classTextile.php ยท Textpattern CMS Support Forum.
After patching, you can just use Textile like this:
$this->load->helper('textile');
$text = Textile("Dude this is *my* code!");For more information read the post on the forums!