From: Chong Yidong <cyd@stupidchicken.com>
To: Stefan Monnier <monnier@iro.umontreal.ca>
Cc: "Trent W. Buck" <trentbuck@gmail.com>, 6212@debbugs.gnu.org
Subject: bug#6212: 23.2; ^S^Q^@ --error--> Wrong type argument: characterp, 67108896
Date: Tue, 18 May 2010 12:42:52 -0400 [thread overview]
Message-ID: <87pr0ti2k3.fsf@stupidchicken.com> (raw)
In-Reply-To: <87632lutyf.fsf@gmail.com> (Trent W. Buck's message of "Wed, 19 May 2010 01:10:16 +1000")
trentbuck@gmail.com (Trent W. Buck) writes:
> Attempting to insert a literal ^@ control character worked in 23.1.
> In 23.2, it results in an error: Wrong type argument: characterp,
> 67108896
>
> I am typing C-q C-SPC, in Emacs in Screen in linux's fbcon. Since ^@ is
> the zeroth character, perhaps this is an off-by-one or overflow error
> somewhere. The same error occurs when typing C-q C-@.
Yes, I can reproduce this on text-terminals. It appears to be due to
the following change:
2009-10-19 Stefan Monnier <monnier@iro.umontreal.ca>
* bindings.el (function-key-map): Map C-@ to C-SPC if C-@ is unbound.
which added the following to bindings.el:
;; Hitting C-SPC on text terminals, usually sends the ascii code 0 (aka C-@),
;; so we can't distinguish those two keys, but usually we consider C-SPC
;; (rather than C-@) as the "canonical" binding.
(define-key function-key-map [?\C-@] [?\C-\s])
Stefan, could you take a look? I don't know your original motivation
for this change, so I don't know how to fix it.
next prev parent reply other threads:[~2010-05-18 16:42 UTC|newest]
Thread overview: 6+ messages / expand[flat|nested] mbox.gz Atom feed top
2010-05-18 15:10 bug#6212: 23.2; ^S^Q^@ --error--> Wrong type argument: characterp, 67108896 Trent W. Buck
2010-05-18 16:05 ` Juanma Barranquero
2010-05-18 16:42 ` Chong Yidong [this message]
2010-05-18 20:32 ` Stefan Monnier
2010-05-18 20:52 ` Chong Yidong
2010-05-19 1:54 ` Stefan Monnier
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