From: Michael Heerdegen <michael_heerdegen@web.de>
To: YE Qianchuan <stool.ye@gmail.com>
Cc: help-gnu-emacs@gnu.org
Subject: Re: Is it legal to set `help-char' to nil?
Date: Thu, 11 Apr 2013 12:59:24 +0200 [thread overview]
Message-ID: <87vc7tcoz7.fsf@web.de> (raw)
In-Reply-To: <5166809E.6060305@gmail.com> (YE Qianchuan's message of "Thu, 11 Apr 2013 17:21:34 +0800")
YE Qianchuan <stool.ye@gmail.com> writes:
> Well, I can't even enter term-mode.
> I can reproduce it in this way:
> 1. open emacs without initial files (emacs -Q)
> 2. eval (setq help-char nil)
> 3. type M-x term
> Then it throw an error: Wrong type argument: characterp, nil.
> If you don't have this problem, maybe it's a bug in trunk.
I can reproduce this. The error happens when loading "ehelp", here, in
the definition of `electric-help-map':
(define-key map (char-to-string help-char) 'electric-help-help)
Similar examples are spread over diverse other elisp files. So, we know
now that Emacs indeed assumes that `help-char' is a character (and not
nil), so nil is not allowed as a value.
I don't have a better solution than to bind `help-char' to a different
character. You could also create a bug report - I think what you want
could be made possible, but I don't know if emacs-dev would do it.
Regards,
Michael.
next prev parent reply other threads:[~2013-04-11 10:59 UTC|newest]
Thread overview: 9+ messages / expand[flat|nested] mbox.gz Atom feed top
[not found] <mailman.23660.1365244070.855.help-gnu-emacs@gnu.org>
2013-04-10 14:49 ` Is it legal to set `help-char' to nil? Michael Heerdegen
[not found] ` <8738uyo2r3.fsf@web.de>
2013-04-11 9:21 ` YE Qianchuan
2013-04-11 10:59 ` Michael Heerdegen [this message]
2013-04-12 10:14 ` YE Qianchuan
2013-04-12 16:54 ` Stefan Monnier
2013-04-13 15:29 ` YE Qianchuan
2013-04-06 10:27 YE Qianchuan
2013-04-06 11:04 ` Peter Dyballa
2013-04-06 14:13 ` YE Qianchuan
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