GNU bug report logs -
#2057
23.0.60; delete key and deletechar
Previous Next
Full log
View this message in rfc822 format
[Message part 1 (text/plain, inline)]
This is an automatic notification regarding your bug report
which was filed against the emacs package:
#2057: 23.0.60; delete key and deletechar
It has been closed by Dan Nicolaescu <dann <at> ics.uci.edu>.
Their explanation is attached below along with your original report.
If this explanation is unsatisfactory and you have not received a
better one in a separate message then please contact Dan Nicolaescu <dann <at> ics.uci.edu> by
replying to this email.
--
2057: http://debbugs.gnu.org/cgi/bugreport.cgi?bug=2057
Emacs Bug Tracking System
Contact help-debbugs <at> gnu.org with problems
[Message part 2 (message/rfc822, inline)]
Robert Brown <brown <at> google.com> writes:
> Dan Nicolaescu writes:
> > Robert Brown <brown <at> google.com> writes:
> >
> > > I believe the following patch may be the right fix for bug 2057. When
> > > looking at the key sequences generated by function keys, Emacs should only
> > > register those that generate two or more ASCII characters.
> > >
> > > My termcap entry, xterm-color, contains "kD=\177", which means that the
> > > delete *function* key generates code 177.
> >
> > Interesting, it seems that you have a modified termcap database, the normal one
> > has kD=\E[3~ for xterm-color.
>
> Yes, it's definitely a bug in the termcap entry. Hitting the delete
> function key generates \E[3~ for me. I can fix the termcap.
>
> > Can you try setting TERM to xterm-256color and see if that the delete
> > key works better then?
>
> Switching to a different termcap works well.
OK, so it's not an emacs bug, closing this then.
> I still think it may incorrect for Emacs to map single character function
> key sequences. But perhaps these just never occur in practice.
Given that we don't have a positive proof that it causes a problem,
there doesn't seem to be a good reason to change code that has been
around for such a long time.
[Message part 3 (message/rfc822, inline)]
Please write in English if possible, because the Emacs maintainers
usually do not have translators to read other languages for them.
Your bug report will be posted to the emacs-pretest-bug <at> gnu.org mailing list.
Please describe exactly what actions triggered the bug
and the precise symptoms of the bug:
I start Emacs 23.0.60.2 on Ubuntu 8.10 inside a gnome-terminal emulation
window using the command "emacs -q -nw". The backspace key on my keyboard is
set up to generate ASCII code 127, but Emacs incorrectly maps this code to
deletechar with input-decode-map which is:
(keymap (127 . [deletechar]) (27 keymap (79 keymap (83 . ....
I believe this input translation is set up by term_get_fkeys_1 in term.c when
it looks at the termcap/terminfo function key definitions for my terminal
type, xterm-color, and sees that the termcap description contains:
kD=\177
which means that the delete *function* key produces ASCII code 127.
Emacs should look at both kD and kb. If they are the same ASCII character,
then Emacs should not install a translation in input-decode-map for delete.
If Emacs crashed, and you have the Emacs process in the gdb debugger,
please include the output from the following gdb commands:
`bt full' and `xbacktrace'.
If you would like to further debug the crash, please read the file
/local/software/package/emacs-23.0.60.2/share/emacs/23.0.60/etc/DEBUG
for instructions.
In GNU Emacs 23.0.60.2 (i686-pc-linux-gnu)
of 2009-01-18 on ugg
configured using `configure '--without-x'
'--prefix=/local/software/package/emacs-23.0.60.2''
Important settings:
value of $LC_ALL: nil
value of $LC_COLLATE: C
value of $LC_CTYPE: nil
value of $LC_MESSAGES: nil
value of $LC_MONETARY: nil
value of $LC_NUMERIC: nil
value of $LC_TIME: C
value of $LANG: en_US.UTF-8
value of $XMODIFIERS: nil
locale-coding-system: utf-8-unix
default-enable-multibyte-characters: t
Major mode: Info
Minor modes in effect:
savehist-mode: t
file-name-shadow-mode: t
global-font-lock-mode: t
font-lock-mode: t
global-auto-composition-mode: t
auto-composition-mode: t
auto-encryption-mode: t
auto-compression-mode: t
line-number-mode: t
transient-mark-mode: t
Recent input:
ESC [ > 1 ; 1 7 0 4 ; 0 c C-h i m e m a c s RET C-s
b u g SPC C-a C-n C-f C-f C-f C-f C-f C-f RET SPC SPC
ESC x r e p o r t - e m a c s - b u g RET
Recent messages:
("emacs")
Composing main Info directory...done
Mark saved where search started
This bug report was last modified 16 years and 40 days ago.
Previous Next
GNU bug tracking system
Copyright (C) 1999 Darren O. Benham,
1997,2003 nCipher Corporation Ltd,
1994-97 Ian Jackson.