A functioning Turing Machine using Notepad++ and its find/replace regex engine
Neat, 
Though it does make me wonder if a python parser wont soon become standard in editors. Its just too damned convenient for many things, sure you might be able to come up with a regexp search and replace that does the same thing, but odds are it will take longer than coding a few loops. BASH sucked far too much, and C++ and most languages lacked the convenient filesystem libs required, but python just works and is easy to read and modify. The downsides of python, like the atrocious speed and low maintainability dont matter for scripts you will use just once.