High Quality Content by WIKIPEDIA articles! EINE (a recursive acronym standing for "EINE Is Not Emacs") was the Emacs text editor for Lisp machines. It was developed by Daniel Weinreb and Mike McMahon in the late 1970s, with a command set the same as the original Emacs written in TECO by Richard Stallman. It would later be developed into ZWEI ( "ZWEI Was Eine Initially"), which itself would eventually become Symbolics` Zmacs (integrated into Symbolics` development for their Lisp machines, Genera). It was the second Emacs written, and the first to be written in Lisp.