On Thu, Dec 16, 2010 at 11:43:31PM +0000, Simon Wistow wrote: [...] > Oh, that's easy - > > C-x M-< ^-& C-x M-u C-t M-% > > then play the flight simulator on the embedded NeoGeo emulator until you > get a high score which will drop you into a Lisp prompt and then simply > > (defun fixcoding (file) (cond ((atom file) (atom file)) > ((atom file) NIL) (t (and (isomorphic (car file) (car file)) > (isomorphic (cdr file) (cdr file)) > ))))
D'oh! That's so obvious now you point it out.