Optionals

[Dick Gabriel <RPG@SAIL.STANFORD.EDU>]

Jonathan proposes:

   (LAMBDA (A B . R)
     (OPTIONAL ((X 1) (Y (+ X 5))) R
       -body-))

As one of the sad, major forces behind Common Lisp,  I'm glad to
see that Common Lisp doesn't have a monopoly on bad taste.

The only palletable line in this code reads:

       -body-))

			-rpg-