x3ro

This plugin automatically wraps Markdown code blocks (indented by 4 spaces or a tab) 
in CodeColorer tags. You can also specify what language the given snippet uses, by using 
the following syntax:
<pre><code> :ruby:
 class Foo < Bar
 end
</code></pre>
That is, the name of the language, as you’d use it when creating a CodeColorer block, 
enclosed by two colons on the very first line of the code snippet.
The source code repository can be found over at 
<a href="http://github.com/x3ro/wordpress-codecolorer-markdown" rel="nofollow ugc">GitHub</a>.

CodeColorer comaptiblity with “Markdown for WordPress and bbPress”

Enables CodeColorer for any code block created by the markdown-for-wordpress-and-bbpress plugin.

Code Block Pro – Beautiful Syntax Highlighting vs CodeColorer comaptiblity with “Markdown for WordPress and bbPress”