I am baffled (or dense).

I cannot get pprint to do what I think it should in any of openmcl, sbcl, or LW.

An example given in the ANSI spec/Hyperspec under *print-pretty* is:

(let ((*print-pretty* t)) (progn (write '(let ((a 1) (b 2) (c 3)) (+ a b c))) nil))

...

(LET ((A 1) (B 2) (C 3)) (+ A B C))

=> NIL

I don't get any indentation when I type that example into any of the CL implementations listed above. The example just gets printed on one line of output, no indentation.

Am I supposed to do some additional thing to get the output shown?

- Dave -