bug#9417: digit-argument doesn't work with `key-translation-map'

bug#9417: digit-argument doesn't work with `key-translation-map'

[Le Wang]

repro:

1. emacs -Q
2. eval-region:

  (define-key key-translation-map [(control x)] [(control j)])
  (define-key key-translation-map [(control j)] [(control x)])

3. C-1 C-j C-f

expectation: call `find-file'
actual: call binding of C-j `eval-print-last-sexp'

Emacs version: CVS Head built today on Windows 7.

In Emacs 23, the behavior is slightly different.  C-1 C-j calls
`eval-print-last-sexp' withing the final C-f key chord.

-- 
Le

bug#9417: digit-argument doesn't work with `key-translation-map'

[Stefan Monnier]

>>>>> "Le" == Le Wang <l26wang@gmail.com> writes:

> repro:
> 1. emacs -Q
> 2. eval-region:

>   (define-key key-translation-map [(control x)] [(control j)])
>   (define-key key-translation-map [(control j)] [(control x)])

> 3. C-1 C-j C-f

> expectation: call `find-file'
> actual: call binding of C-j `eval-print-last-sexp'

> Emacs version: CVS Head built today on Windows 7.

I hope you meant "Bazaar head" since we stopped using CVS a few
years ago.

I think the problem is that universal-argument-other-key reads the key
just pressed with this-command-keys (which is the key after translation)
and then puts it into unread-command-events which will cause this key to
be re-translated.

My experience is that reading an event and putting it back into
unread-command-events is something fiendishly difficult to do right,
which prompted me to develop set-temporary-overlay-map, but this is not
ready for 24.1 (and it may never be ready, since it may come with
its own set of problems).

> In Emacs 23, the behavior is slightly different.  C-1 C-j calls
> `eval-print-last-sexp' withing the final C-f key chord.

And in both Emacs23 and current Bzr head, C-u 1 C-j gives me
 Args out of range: " C-x", 0, 5
tho it seems to depend on what I've done before.  This seems to be
a separate bug.


        Stefan

bug#9417: digit-argument doesn't work with `key-translation-map'

[Le Wang]

On Fri, Sep 2, 2011 at 10:37 AM, Stefan Monnier
<monnier@iro.umontreal.ca> wrote:
> I hope you meant "Bazaar head" since we stopped using CVS a few
> years ago.

I used the git mirror git://git.savannah.gnu.org/emacs.git .

-- 
Le

bug#9417: digit-argument doesn't work with `key-translation-map'

[Le Wang]

Adding Xah, Tassilo.  I arrived at this independently, but Xah blogged
about it here:

http://xahlee.blogspot.com/2011/04/emacs-bug-using-universal-argument-to.html

there was a discussion on gnu.emacs.help here:

https://groups.google.com/group/gnu.emacs.help/browse_thread/thread/a7b3cb2605b33646?pli=1

Tassilo, you mentioned in this thread that it was fixed in the trunk.
Can you clarify?

On Fri, Sep 2, 2011 at 10:52 AM, Le Wang <l26wang@gmail.com> wrote:
> On Fri, Sep 2, 2011 at 10:37 AM, Stefan Monnier
> <monnier@iro.umontreal.ca> wrote:
>> I hope you meant "Bazaar head" since we stopped using CVS a few
>> years ago.
>
> I used the git mirror git://git.savannah.gnu.org/emacs.git .
>
> --
> Le
>



-- 
Le

bug#9417:

[mmpedros]

Recipe:

1. emacs -Q
2. eval-region

(define-key key-translation-map [?\C-x] [?\C-u])
(define-key key-translation-map [?\C-u] [?\C-x])

3. C-u M-x eshell
 Expected: open eshell
 Result: "eeeeshell" is inserted


Further details:

+ Emacs version 23.3.1 in an Archlinux box.
+ If I type `C-u M-x M-x eshell' (i.e., M-x twice) it works as expected
(i.e., eshell opens).


Thanks!
mak

bug#9417: digit-argument doesn't work with `key-translation-map'

[Lars Ingebrigtsen]

Le Wang <l26wang@gmail.com> writes:

> repro:
>
> 1. emacs -Q
> 2. eval-region:
>
>   (define-key key-translation-map [(control x)] [(control j)])
>   (define-key key-translation-map [(control j)] [(control x)])
>
> 3. C-1 C-j C-f
>
> expectation: call `find-file'
> actual: call binding of C-j `eval-print-last-sexp'

Le Wang <l26wang@gmail.com> writes:

> Tassilo, you mentioned in this thread that it was fixed in the trunk.
> Can you clarify?

(I'm going through old bug reports that unfortunately weren't resolved
at the time.)

I'm unable to reproduce this problem in Emacs 28, so I guess Tassilo was
correct here, and I'm closing this bug report.  If there's still some
issues here, please respond to the debbugs address and we'll reopen.

-- 
(domestic pets only, the antidote for overdose, milk.)
   bloggy blog: http://lars.ingebrigtsen.no