jed:
jed: JED (by John E. Davis) is an extremely powerful but small emacs-like
jed: programmer's editor that is extensible in a C-like macro language and
jed: can do color syntax highlighting. Among the many features:
jed:    Emacs, wordstar, EDT emulation;
jed:    C, Fortran, TeX, text editing modes; Full undo;
jed:    GNU Emacs compatible info reader, and lots more.
jed:
jed: JED is also 8 bit clean, so you can even edit binary files! 
jed: