From: "Štěpán Němec" <stepnem@gmail.com>
To: Stefan Monnier <monnier@IRO.UMontreal.CA>
Cc: Drew Adams <drew.adams@oracle.com>, emacs-devel@gnu.org
Subject: Re: why does `variable-at-point' return 0?
Date: Fri, 20 Apr 2012 20:14:10 +0200 [thread overview]
Message-ID: <87sjfyl18t.fsf@gmail.com> (raw)
In-Reply-To: <jwvr4vj4cgk.fsf-monnier+emacs@gnu.org> (Stefan Monnier's message of "Thu, 19 Apr 2012 17:52:22 -0400")
On Thu, 19 Apr 2012 23:52:22 +0200
Stefan Monnier wrote:
>>> All I can think of is that for some reason someone wanted to
>>> test using `symbolp' instead of testing using `not' (or `and').
>>> But I cannot imagine why.
>
> That's most likely the reason, so as not to get tripped up by a variable
> whose name happens to be "nil" (unlikely in Lisp, admittedly).
^^^^^^^^
AFAIK, in "nil-lisps" like Elisp or Common Lisp that is not unlikely,
but impossible. Could you explain what you had in mind?
--
Štěpán
next prev parent reply other threads:[~2012-04-20 18:14 UTC|newest]
Thread overview: 9+ messages / expand[flat|nested] mbox.gz Atom feed top
2012-04-07 0:23 why does `variable-at-point' return 0? Drew Adams
2012-04-16 18:07 ` Drew Adams
2012-04-19 19:50 ` Štěpán Němec
2012-04-19 21:28 ` Drew Adams
2012-04-19 21:52 ` Stefan Monnier
2012-04-19 22:56 ` Juanma Barranquero
2012-04-20 18:14 ` Štěpán Němec [this message]
2012-04-20 22:57 ` Juanma Barranquero
2012-04-21 2:24 ` Stefan Monnier
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