Glad to see this hit the front page again! I’ve been making some contributions lately and it introduced me to Lua. At its core it’s basically a very thin wrapper around the Scintilla editing component used by many open source editors. I’ve been working on getting some lower level APIs added for more control over the UI.

Mitchell is to be commended for maintaining the editor solo for so many years and keeping the LOC count really low (2000 lines of C, 4000 lines of Lua). If you’re willing to read the source it’s really easy to wrap your head around the whole thing, which can’t be said for Emacs or Vim. When I find the time I’ll finish my vi mode…