* Fwd: Alt+numpad to write special symbols
[not found] ` <77b6ce390909281815j1600f85by5837ca2bb4b1f7d@mail.gmail.com>
@ 2009-09-29 1:27 ` David Capello
2009-09-29 3:13 ` Stefan Monnier
0 siblings, 1 reply; 4+ messages in thread
From: David Capello @ 2009-09-29 1:27 UTC (permalink / raw
To: emacs-devel
---------- Forwarded message ----------
From: David Capello <davidcapello@gmail.com>
Date: Mon, Sep 28, 2009 at 10:15 PM
Subject: Re: Alt+numpad to write special symbols
To: Juanma Barranquero <lekktu@gmail.com>
On Mon, Sep 28, 2009 at 9:57 PM, Juanma Barranquero <lekktu@gmail.com> wrote:
> On Tue, Sep 29, 2009 at 02:49, David Capello <davidcapello@gmail.com> wrote:
>> Is there a way to use Alt+numpad to write Unicode
>> characters in Emacs? Or does it need a patch?
>> Have someone tried it before?
>
> Why do you want to use Alt+numpad?
It's a long history, but basically because in all other programs
you can use Alt+numpad.
> You can already type an Unicode
> codepoint with `ucs-insert' (bound to C-x 8 RET).
Thanks about that. I did not know about ucs-insert, but
still I need Alt+numpad behavior.
Another thing: I think it is impossible to emulate
the Alt+keypad just with elisp code because I need
to catch something like "Alt-unpressed" event.
^ permalink raw reply [flat|nested] 4+ messages in thread
* Re: Fwd: Alt+numpad to write special symbols
2009-09-29 1:27 ` Fwd: " David Capello
@ 2009-09-29 3:13 ` Stefan Monnier
2009-09-29 23:12 ` Juri Linkov
0 siblings, 1 reply; 4+ messages in thread
From: Stefan Monnier @ 2009-09-29 3:13 UTC (permalink / raw
To: David Capello; +Cc: emacs-devel
> Another thing: I think it is impossible to emulate
> the Alt+keypad just with elisp code because I need
> to catch something like "Alt-unpressed" event.
If you mean that "the alt-numpad" feature works by recognizing the
"alt-unpressed" event as the sign that you've finished entering the
number, then indeed, it can't be done in Elisp right now and would
require changes to provide access to the up/down events for key presses
(I actually did code up such a change at some point in the past, to
play with it: it might be doable without introducing too many problems).
Stefan
^ permalink raw reply [flat|nested] 4+ messages in thread
* Re: Fwd: Alt+numpad to write special symbols
2009-09-29 3:13 ` Stefan Monnier
@ 2009-09-29 23:12 ` Juri Linkov
0 siblings, 0 replies; 4+ messages in thread
From: Juri Linkov @ 2009-09-29 23:12 UTC (permalink / raw
To: Stefan Monnier; +Cc: David Capello, emacs-devel
>> Another thing: I think it is impossible to emulate
>> the Alt+keypad just with elisp code because I need
>> to catch something like "Alt-unpressed" event.
>
> If you mean that "the alt-numpad" feature works by recognizing the
> "alt-unpressed" event as the sign that you've finished entering the
> number, then indeed, it can't be done in Elisp right now and would
> require changes to provide access to the up/down events for key presses
> (I actually did code up such a change at some point in the past, to
> play with it: it might be doable without introducing too many problems).
Like in GTK+ `Ctrl+Shift+U hex RET' http://en.wikipedia.org/wiki/Unicode_input
we could finish entering the number with RET, e.g. `M-2 M-7 M-0 M-f RET'.
Or expect a fixed-length four-digit number `M-2 M-7 M-0 M-f' where the last
fourth digit finishes the sequence. In any case, your up/down events code
would be useful for other purposes as well.
--
Juri Linkov
http://www.jurta.org/emacs/
^ permalink raw reply [flat|nested] 4+ messages in thread
* Re: Fwd: Alt+numpad to write special symbols
@ 2009-09-30 1:40 MON KEY
0 siblings, 0 replies; 4+ messages in thread
From: MON KEY @ 2009-09-30 1:40 UTC (permalink / raw
To: juri; +Cc: emacs-devel
> Like in GTK+ `Ctrl+Shift+U hex RET' http://en.wikipedia.org/wiki/Unicode_input
> we could finish entering the number with RET, e.g. `M-2 M-7 M-0 M-f RET'.
> Or expect a fixed-length four-digit number `M-2 M-7 M-0 M-f' where the last
> fourth digit finishes the sequence. In any case, your up/down events code
> would be useful for other purposes as well.
If I understand correctly what the goal is re: hex input and Unicode,
following was written to accomplish just such task:
(defun mon-test-keypresses (&optional first second third)
"Used to test if additional optional args have been passed to interactive.\n
EXAMPLE:\nM-34 M-x mon-test-keypresses\n
=> \(\(meta . 51\) \(meta . 52\) \(meta . 120\) mon-test-keypresses\)\n►►►"
(interactive "P\nP\np")
(let ((accum-string '())
(accum-event '())
(self 'mon-test-keypresses))
(mapc (lambda (x)
(cond ((= x 13) nil)
((or (eql (car (event-modifiers x)) 'meta)
(eql (car (event-modifiers x)) 'control))
(setq accum-event (cons (cons (car (event-modifiers
x)) (event-basic-type x)) accum-event)))
(t (setq accum-string (cons (char-to-string
(event-basic-type x)) accum-string)))))
(this-command-keys-vector))
(setq accum-event (reverse accum-event))
(setq accum-string (reverse accum-string))
(setq accum-string (apply 'concat accum-string))
(setq accum-string `(,@accum-event ,(if (string= accum-string
self) self accum-string)))
(prin1 accum-string)))
s_P
^ permalink raw reply [flat|nested] 4+ messages in thread
end of thread, other threads:[~2009-09-30 1:40 UTC | newest]
Thread overview: 4+ messages (download: mbox.gz follow: Atom feed
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2009-09-30 1:40 Fwd: Alt+numpad to write special symbols MON KEY
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2009-09-29 0:49 David Capello
2009-09-29 0:57 ` Juanma Barranquero
[not found] ` <77b6ce390909281815j1600f85by5837ca2bb4b1f7d@mail.gmail.com>
2009-09-29 1:27 ` Fwd: " David Capello
2009-09-29 3:13 ` Stefan Monnier
2009-09-29 23:12 ` Juri Linkov
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