/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.

>>41
Hilarious link! I've never seen it before. +5 humorous!
Way to miss the point and ignore one third of what I said, though.
Also man system states:
system() executes a command specified in command by calling /bin/sh -c command
So no, it's not `smaller' - in fact it's bigger as you must load ,,besteditorever'' as well as a shell instance.
Also, you named it wrong, as EDITOR may be set to, say, nano or gedit.