Subject: Re: Windows PCL Lispbox now available
From: (Rob Warnock)
Date: Sat, 27 Aug 2005 22:10:04 -0500
Newsgroups: comp.lang.lisp
Message-ID: <>
Edi Weitz  <> wrote:
| (Rob Warnock) wrote:
| > p.s. IIRC, I first heard this recommendation & rationale from Erik
| > Naggum.
| Based on an idea from Paul Dietz:
|   <>

Actually, looking again at the whole thread, I believe Thomas Russ
was also one of the first to mention using "empty forms in OR or AND":


In any case, I came away with a strong feeling that #+(AND) and #-(AND)
for "enable" and "disable", resp., were far & away the best of the all
of the alternatives discussed: portable [pure CLHS], "natural" with
respect to "+/-", and easily remembered.

I've been using them ever since...  ;-}  ;-}


Rob Warnock			<>
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