Path: utzoo!attcan!uunet!husc6!mailrus!cornell!uw-beaver!uw-june!whaley
From: whaley@june.cs.washington.edu (Ken Whaley)
Newsgroups: comp.lang.lisp
Subject: assoc in KCL
Message-ID: <6341@june.cs.washington.edu>
Date: 4 Nov 88 22:06:57 GMT
Reply-To: whaley@uw-june.UUCP (Ken Whaley)
Organization: U of Washington, Computer Science, Seattle
Lines: 23


Much to my dismay, I've found that the KCL we have here does NOT have
the keyword ":key" in the "assoc" function.  Since I obviously have to write
my own (I suppose there's the danger of replicating "the best way to sum
a list" discussion....I'm not terribly interested in the "best" way of doing
this, I just want to know the "right" way).
CLtL isn't clear as to how assoc uses the keywork ":key":


	assoc	item	a-list     &key :test :test-not :key	[Function]


I.e., exactly which things does :key get applied to?  In Allegro 3.0,
it seems to apply only to the items in the a-list.  I.e.,

(assoc 'a '( ((c) . d) ((a) . b)) :key #'car :test #'equal) ==> ((a) . b)


Is this correct?

			Ken
-- 
whaley@june.cs.washington.edu