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&rest, &key in macro parameter list
Date: Fri, 12 Jan 90 15:59:41 MST
From: email@example.com (David R. Strip)
Consider the following trivial macro
(defmacro foo (a b &key c &rest d)`( ,a ,b ,c ,d))
(defmacro foo (a b &rest d &key c &allow-other-keys)
`(,a ,b ,c ,d))
That probably is not guaranteed to work since the existence of &key
implies keyword-value pairs, and the thing below does not do that.
(foo a1 b1 :c c1 d1)
When you try top expand the example, you get an error that
the instance doesn't match the pattern.
Am I blind to somthing too obvious too see, or is there
something subtle here>