* Re: define-key acting strange..
[not found] ` <ap38z6carb6.fsf@poynting.umd.edu>
@ 2002-05-24 0:44 ` Richard Stallman
2002-05-24 5:31 ` D. Goel
0 siblings, 1 reply; 7+ messages in thread
From: Richard Stallman @ 2002-05-24 0:44 UTC (permalink / raw)
Cc: emacs-devel
It now seems that Emacs is not really frozen. It is just that all (all
that i tried) of the C- commands, M- commands and number-keys beep at
you...
I see no reason why those bindings in key-translation-map SHOULD have this
effect, so I think it is really an Emacs bug. Would you please pick
one character -- how about Ctrl-a? -- and determine exactly why it is not
recognized? These bindings in key-translation-map ought to have no effect
on the processing of Ctrl-a.
^ permalink raw reply [flat|nested] 7+ messages in thread
* Re: define-key acting strange..
2002-05-24 0:44 ` define-key acting strange Richard Stallman
@ 2002-05-24 5:31 ` D. Goel
2002-05-24 6:43 ` D. Goel
` (2 more replies)
0 siblings, 3 replies; 7+ messages in thread
From: D. Goel @ 2002-05-24 5:31 UTC (permalink / raw)
Cc: emacs-devel
RMS
> It now seems that Emacs is not really frozen. It is just that all (all
> that i tried) of the C- commands, M- commands and number-keys beep at
> you...
>
> I see no reason why those bindings in key-translation-map SHOULD have this
> effect, so I think it is really an Emacs bug. Would you please pick
> one character -- how about Ctrl-a? -- and determine exactly why it is not
> recognized? These bindings in key-translation-map ought to have no effect
> on the processing of Ctrl-a.
okay, i shall do as you suggested.
To the list: BTW, this 'gdb emacs' will be a huge learning curve for
me, and i will bug folks (is this the right forum or should i try
g.e.help?) for help.. instead, if a GDB expert would like to pick this
bug-report up, that would be cool :)..
If not, here's the first snafu i ran into (i get to my umd.edu unix
account through an ssh over QVT/Term on win2000)---->
+----
|
| student1:~: cd emacs
| student1:~/emacs: cd src
| student1:~/emacs/src: gdb /usr/local/gnu/bin/emacs21
| GNU gdb 4.18
| Copyright 1998 Free Software Foundation, Inc.
| GDB is free software, covered by the GNU General Public License, and
| you are
| welcome to change it and/or distribute copies of it under certain
| conditions.
| Type "show copying" to see the conditions.
| There is absolutely no warranty for GDB. Type "show warranty" for
| details.
| This GDB was configured as "alpha-dec-osf4.0b"...
| Environment variable "DISPLAY" not defined.
| TERM = vt220
| Breakpoint 1 at 0x1201186e8: file emacs.c, line 389.
| Breakpoint 2 at 0x1200ed824: file xterm.c, line 12015.
| (gdb)
|
+----
gdb seems to have stopped.. typing 'continue' doesn't help :(.. is
this because i don't have display available? But i can't run Xwindows
here.. :(
BTW, This directory emacs/src above is indeed the directory from
emacs21 is built.. this is the one containing dired.c, for
example.. and if i chase links, its fullname is:
student1:/afs/glue.umd.edu/project/glue/e/emacs/21.1/emacs-21.1/src:
the problem above seems pretty emacs-source specific.. but if this it
OT, apologies..
D <http://www.glue.umd.edu/~deego/>
--
^ permalink raw reply [flat|nested] 7+ messages in thread
* Re: define-key acting strange..
2002-05-24 5:31 ` D. Goel
@ 2002-05-24 6:43 ` D. Goel
2002-05-24 11:02 ` Andreas Schwab
2002-05-25 21:19 ` Richard Stallman
2002-05-24 8:13 ` Thien-Thi Nguyen
2002-05-24 12:34 ` Eli Zaretskii
2 siblings, 2 replies; 7+ messages in thread
From: D. Goel @ 2002-05-24 6:43 UTC (permalink / raw)
Cc: emacs-devel
( A quick update before i go away for the long
weekend.. to... Maryland!!!.. )..
All of the problem was being caused by the one line in that
expression: (guess i will have to wait another day to learn GDB :)
(define-key [t] <foo>).. and that <foo> could be anything ..
Emacs is not frozen.. 'tis just that this line has the effect of
adding a (t . <foo>) to your keymap <-- Whether this result is a bug
or not, i am not sure..
Now depending on <foo> and the other bindings in the
key-translation-map, one might end up effectively getting a 'frozen'
emacs..
Consider this expression: (this is how i first traced that
(not-really-a-)bug..)
(progn
(message "DOING")
(define-key key-translation-map [t] "f")
(define-key key-translation-map "u" "v")
(message "DONE")
(goto-char (point-max))
(insert (format "%s" key-translation-map))
(write-file "~/gg.gg")
)
After eval'ing this, key-translation-map looks like this:
(keymap (117 . v) (t . f) (24 keymap (56 . iso-transl-ctl-x-8-map)))
(117 is u...).. Once you have this keymap, *everything* you type
inserts a f, except when you type u, which inserts v. So, everything
is happening in accordance with key-translation-map, IMHO.
In the original expression, everything was getting mapped to
[T]... which just beeped at us .. what is [T] ?
BTW, up-arrow inserts 3 f's... guess why ? :) up-->ESC O A --> f f f
Wishing a great weekend to all..
D <http://www.glue.umd.edu/~deego/>
--
Why don't *we* have congressmen like the one writing this!!! ---->
http://www.gnu.org.pe/resmseng.html
^ permalink raw reply [flat|nested] 7+ messages in thread
* Re: define-key acting strange..
2002-05-24 5:31 ` D. Goel
2002-05-24 6:43 ` D. Goel
@ 2002-05-24 8:13 ` Thien-Thi Nguyen
2002-05-24 12:34 ` Eli Zaretskii
2 siblings, 0 replies; 7+ messages in thread
From: Thien-Thi Nguyen @ 2002-05-24 8:13 UTC (permalink / raw)
Cc: rms, emacs-devel
"D. Goel" <deego@glue.umd.edu> writes:
gdb seems to have stopped.. typing 'continue' doesn't help :(.. is
this because i don't have display available? But i can't run Xwindows
here.. :(
becuase you can futz w/ environment, gdb waits for an explicit command to
begin running the program. try: r RET -- after this C-c C-r works, too.
in C-h b, look for "gud-". on my machine this shows a lot of C-c prefixes.
thi
^ permalink raw reply [flat|nested] 7+ messages in thread
* Re: define-key acting strange..
2002-05-24 6:43 ` D. Goel
@ 2002-05-24 11:02 ` Andreas Schwab
2002-05-25 21:19 ` Richard Stallman
1 sibling, 0 replies; 7+ messages in thread
From: Andreas Schwab @ 2002-05-24 11:02 UTC (permalink / raw)
Cc: emacs-devel
"D. Goel" <deego@glue.umd.edu> writes:
|> ( A quick update before i go away for the long
|> weekend.. to... Maryland!!!.. )..
|>
|>
|> All of the problem was being caused by the one line in that
|> expression: (guess i will have to wait another day to learn GDB :)
|>
|>
|> (define-key [t] <foo>).. and that <foo> could be anything ..
*Note (elisp)Format of Keymaps::.
`(t . BINDING)'
This specifies a "default key binding"; any event not bound by
other elements of the keymap is given BINDING as its binding.
Default bindings allow a keymap to bind all possible event types
without having to enumerate all of them. A keymap that has a
default binding completely masks any lower-precedence keymap.
Andreas.
--
Andreas Schwab, SuSE Labs, schwab@suse.de
SuSE GmbH, Deutschherrnstr. 15-19, D-90429 Nürnberg
Key fingerprint = 58CA 54C7 6D53 942B 1756 01D3 44D5 214B 8276 4ED5
"And now for something completely different."
^ permalink raw reply [flat|nested] 7+ messages in thread
* Re: define-key acting strange..
2002-05-24 5:31 ` D. Goel
2002-05-24 6:43 ` D. Goel
2002-05-24 8:13 ` Thien-Thi Nguyen
@ 2002-05-24 12:34 ` Eli Zaretskii
2 siblings, 0 replies; 7+ messages in thread
From: Eli Zaretskii @ 2002-05-24 12:34 UTC (permalink / raw)
Cc: emacs-devel
> From: "D. Goel" <deego@glue.umd.edu>
> Date: 24 May 2002 01:31:31 -0400
>
> To the list: BTW, this 'gdb emacs' will be a huge learning curve for
> me
The file etc/DEBUG in the distribution might help a lot.
> and i will bug folks (is this the right forum
Yes, this is the right forum for asking help in debugging Emacs
problems.
> | (gdb)
> |
> +----
>
> gdb seems to have stopped.. typing 'continue' doesn't help
Type "run -q" to start Emacs.
GDB stops because in many cases you would want to prepare the
debugging session: set breakpoints, add directories to the source
search list, set various GDB options, etc.
> BTW, This directory emacs/src above is indeed the directory from
> emacs21 is built
This is the right directory from where to run a debugging session.
In particular, the file .gdbinit there makes sure you have the
Emacs-specific GDB commands (such as xstring and pr) defined.
^ permalink raw reply [flat|nested] 7+ messages in thread
* Re: define-key acting strange..
2002-05-24 6:43 ` D. Goel
2002-05-24 11:02 ` Andreas Schwab
@ 2002-05-25 21:19 ` Richard Stallman
1 sibling, 0 replies; 7+ messages in thread
From: Richard Stallman @ 2002-05-25 21:19 UTC (permalink / raw)
Cc: emacs-devel
(define-key [t] <foo>).. and that <foo> could be anything ..
Emacs is not frozen.. 'tis just that this line has the effect of
adding a (t . <foo>) to your keymap <-- Whether this result is a bug
or not, i am not sure..
Yes, indeed, that default definition could cause such problems.
Mystery solved, I think. Thanks.
^ permalink raw reply [flat|nested] 7+ messages in thread
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2002-05-24 0:44 ` define-key acting strange Richard Stallman
2002-05-24 5:31 ` D. Goel
2002-05-24 6:43 ` D. Goel
2002-05-24 11:02 ` Andreas Schwab
2002-05-25 21:19 ` Richard Stallman
2002-05-24 8:13 ` Thien-Thi Nguyen
2002-05-24 12:34 ` Eli Zaretskii
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