[Top][All Lists]
[Date Prev][Date Next][Thread Prev][Thread Next][Date Index][Thread Index]
Re: kbd vs read-key-sequence
From: |
Stefan Monnier |
Subject: |
Re: kbd vs read-key-sequence |
Date: |
Mon, 12 Mar 2007 23:12:12 -0400 |
User-agent: |
Gnus/5.11 (Gnus v5.11) Emacs/22.0.95 (gnu/linux) |
>> > Because the way the event is decoded through read-key-sequence is
>> > not necessarily the same. E.g. while ?<encoded-?> may get turned
>> > into ??, it may be the case that ?\M-<encoded-?> stays unchanged.
>> > How does that happen?
>> See the OP. It seems that encoded-kb.el has such a limitation (it should
>> probably be considered as a bug, but there may be good reasons for it,
>> I don't know).
> At first, encoded-kbd-mode is designed to be used in the case that Emacs
> is invoked with -nw, and it uses key-translation-map to handle character
> events from 0 to 255 (that's all what happens with -nw).
That's true, so it's probably the reason for the limitation: all meta keys
are expected to come with an ESC prefix, so the code has no good reason to
handle ?\M-<foo> chars.
> I think the following diagram is the right thing to do:
> window-system terminal
> | |
> | window event | character event 0..255
> | |
> handle_one_xevent keyboad-coding-system decoder
> \ /
> \ lispy event /
> \ /
> \ /
> read_char
> |
> input method
> |
> keymap
Agreed.
> And, it's in my todo list to abolish encoded-kbd-mode and
> implement keyboard-coding-system decoder in C for long, but
> unfortunately I still don't have a time to do that.
Does it have to be done in C?
> As shown in the previous diagram, I think it's a bug of w32
> code if it doesn't convert such an event as ?\M-<encoded-?>
> into ?\M-é because only a window system generates such an
> event and knows how to encode it.
Agreed. The bug is that w32 shouldn't be using encoded-kb.
> One guideline is not to use encoded-kbd-mode on window system.
But that's the only available way in w32, IIUC.
Stefan
- Re: kbd vs read-key-sequence, (continued)
- Re: kbd vs read-key-sequence, David Kastrup, 2007/03/02
- Re: kbd vs read-key-sequence, Stefan Monnier, 2007/03/02
- Re: kbd vs read-key-sequence, Juanma Barranquero, 2007/03/02
- Re: kbd vs read-key-sequence, Richard Stallman, 2007/03/03
- Re: kbd vs read-key-sequence, Stefan Monnier, 2007/03/03
- Re: kbd vs read-key-sequence, Richard Stallman, 2007/03/04
- Re: kbd vs read-key-sequence, Stefan Monnier, 2007/03/05
- Re: kbd vs read-key-sequence, Richard Stallman, 2007/03/11
- Re: kbd vs read-key-sequence, Stefan Monnier, 2007/03/12
- Re: kbd vs read-key-sequence, Kenichi Handa, 2007/03/12
- Re: kbd vs read-key-sequence,
Stefan Monnier <=
- Re: kbd vs read-key-sequence, Kenichi Handa, 2007/03/13
- Re: kbd vs read-key-sequence, Stefan Monnier, 2007/03/13
- Re: kbd vs read-key-sequence, Richard Stallman, 2007/03/19
- Re: kbd vs read-key-sequence, Kenichi Handa, 2007/03/19
- Re: kbd vs read-key-sequence, Kim F. Storm, 2007/03/19
- Re: kbd vs read-key-sequence, Richard Stallman, 2007/03/25
- Re: kbd vs read-key-sequence, Kenichi Handa, 2007/03/26
- Re: kbd vs read-key-sequence, Richard Stallman, 2007/03/26
- Re: kbd vs read-key-sequence, Kenichi Handa, 2007/03/26
- Re: kbd vs read-key-sequence, Richard Stallman, 2007/03/27