I've used ed. To write Lisp. Yes, really. It's by no means my favorite editor (You couldn't convince me to use vi - even the original vi, with its excellent su

I've used ed. To write Lisp. Yes, really. It's by no means my favorite editor (You couldn't convince me to use vi - even the original vi, with its excellent support for Lisp: do you really think I'll drop emacs for ed?), but it's usable, and it works.