Path: utzoo!utgpu!water!watmath!clyde!att!osu-cis!tut.cis.ohio-state.edu!cs.utexas.edu!farquhar
From: farquhar@cs.utexas.edu (Adam Farquhar)
Newsgroups: comp.lang.lisp
Subject: Re: Summing a list
Summary: why doesn't reduce take keywords?
Message-ID: <3780@cs.utexas.edu>
Date: 28 Oct 88 16:39:42 GMT
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Stylistically (reduce #'+ list) seems to be the best way to sum up the
elements of a list.  I have often been frustrated, however, by its
inability to take the normal keyword arguments for sequence functions.
For example, one would like to be able to say
	(reduce #'+ (list box1 box2 box3 box4) :key #'box-weight)
Does anyone know why :key was left out?  Is there an elegant way to do
this in CL?

Adam Farquhar