From: Kai Grossjohann <kai@emptydomain.de>
To: help-gnu-emacs@gnu.org
Subject: Re: (list) and '(list)
Date: Mon, 30 Apr 2007 14:49:48 +0200 [thread overview]
Message-ID: <86r6q281sj.fsf@ketchup.de.uu.net> (raw)
In-Reply-To: 87zm4um60b.fsf@thalassa.lan.informatimago.com
Pascal Bourguignon <pjb@informatimago.com> writes:
> Kai Grossjohann <kai@emptydomain.de> writes:
>> For example, to reverse the condition of `if' (proof of concept only,
>> not production code):
>>
>> (defmacro ifnot (test no yes)
>> (if (not test) no yes))
>
> (defmacro ifnot (test no yes)
> `(if (not ,test) ,no ,yes))
*blush*
Kai
next prev parent reply other threads:[~2007-04-30 12:49 UTC|newest]
Thread overview: 10+ messages / expand[flat|nested] mbox.gz Atom feed top
2007-04-26 15:17 (list) and '(list) A Soare
2007-04-27 10:25 ` Kai Grossjohann
[not found] ` <mailman.2588.1177669955.7795.help-gnu-emacs@gnu.org>
2007-04-27 10:39 ` David Kastrup
2007-04-27 11:05 ` Pascal Bourguignon
2007-04-30 12:49 ` Kai Grossjohann [this message]
[not found] <mailman.2557.1177600988.7795.help-gnu-emacs@gnu.org>
2007-04-26 21:55 ` Pascal Bourguignon
2007-04-27 0:58 ` Tim X
-- strict thread matches above, loose matches on Subject: below --
2007-04-27 10:37 A Soare
2007-04-30 18:15 A Soare
2007-04-30 18:53 A Soare
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