Just look at the sources of an editor written in Lisp (GNU Emacs and others) and Yi (in Haskell - https://github.com/yi-editor/yi https://github.com/yi-editor/y

Just look at the sources of an editor written in Lisp (GNU Emacs and others) and Yi (in Haskell - https://github.com/yi-editor/yi https://github.com/yi-editor/yi ). Ask yourself which code you like more...