I've always loved how LOOP incorporates so many common looping idioms into one readable and writable form. It's ugly and hairy if you look at it closely, and ce

I've always loved how LOOP incorporates so many common looping idioms into one readable and writable form. It's ugly and hairy if you look at it closely, and certainly Iterate [1] is cleaner and more pleasing, but LOOP is still damn impressive. [1] http://common-lisp.net/project/iterate/ http://common-lisp.net/project/iterate/