Is this supposed to be kosher/halal/conformant?

[Antoniotti Marco]

On Apr 13, 2013, at 21:34 , Stas Boukarev <stassats at gmail.com<mailto:stassats at gmail.com>>
 wrote:

Antoniotti Marco <antoniotti.marco at disco.unimib.it<mailto:antoniotti.marco at disco.unimib.it>> writes:

On Apr 13, 2013, at 20:02 , Stas Boukarev <stassats at gmail.com<mailto:stassats at gmail.com>>
wrote:

Antoniotti Marco <antoniotti.marco at disco.unimib.it<mailto:antoniotti.marco at disco.unimib.it>> writes:

(defmacro foo (n &optional ((s &key d f) '(42222 :f 33)))
  `(list ,f ,n ,s ,d))


it appears to work on SBCL, CCL and LW (just changed a few things and do not have an Allegro running)

It is nice, but I believe that the CLHS says otherwise.
What do you mean, CLHS says otherwise?
See
http://www.lispworks.com/reference/HyperSpec/Body/03_ddab.htm

Good catch.

And yet...

http://www.lispworks.com/documentation/HyperSpec/Body/03_dd.htm
And yet, what? Nothing stated there contradicts the previous section.

optvars::= [&optional {var | (var [init-form [supplied-p-parameter]])}*]

It is true that the the next section you cite clarifies that 'var' can be a destructuring  list, however, the above can be confusing; at least it was to me.

And why is this in pro@?

Because I am a pro (albeit a small one) and this is a matter of inconsistencies in the spec?

It would appear to me that questions, which could be resolved by careful
reading of the spec, are out of scope of this mailing list, but what do I
know?

Well, I learned something I did not know, and it may have refreshed people' memories.  Is that so bad?
I apologize for having wasted your obviously very valuable time.

Cheers

--
Marco Antoniotti, Associate Professor tel. +39 - 02 64 48 79 01
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