From: Stefan Monnier <monnier@iro.umontreal.ca>
To: Jarek Czekalski <jarekczek@poczta.onet.pl>
Cc: emacs-devel@gnu.org
Subject: Re: using command-error-function in emacspeak
Date: Tue, 05 Nov 2013 09:07:53 -0500 [thread overview]
Message-ID: <jwviow7aqns.fsf-monnier+emacs@gnu.org> (raw)
In-Reply-To: <5278946B.3000901@poczta.onet.pl> (Jarek Czekalski's message of "Tue, 05 Nov 2013 07:47:07 +0100")
>> add-function is the to modify the behavior of a function.
>> It can't know what `nil' represents.
> This is what nil represents:
> (defun nil-fun () nil)
No, it's not.
Try to (setq command-error-function #'nil-fun)
to see if it's really the same as nil.
Stefan
next prev parent reply other threads:[~2013-11-05 14:07 UTC|newest]
Thread overview: 8+ messages / expand[flat|nested] mbox.gz Atom feed top
2013-11-03 19:56 using command-error-function in emacspeak Jarek Czekalski
2013-11-03 21:20 ` Stefan Monnier
2013-11-05 6:47 ` Jarek Czekalski
2013-11-05 14:07 ` Stefan Monnier [this message]
2013-11-05 14:45 ` Jarek Czekalski
2013-11-05 19:01 ` Stefan Monnier
2013-11-05 19:57 ` Jarek Czekalski
2013-11-05 22:48 ` Stefan Monnier
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