/prog/ challenge: Write a text editor

The best quality editor you can fit a post, not using external libraries. Only include default headers/imports/libraries.
Programs will be judged by their array of features, stability of operation and memory use.

>>37
[quote]
An "editor" should be able to "edit" files.
[/quote]

http://xkcd.com/378/

[quote]
Also the joke has already been done in >>8
[/quote]

I prefer calling it wrapper rather than joke. And >>8 didn't look at user's preferences. So, mine is better. And smaller, since I don't load a script interpreter.