key-translation-map not taken into account?

key-translation-map not taken into account?

[Alan Schmitt]

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Hello,

I have configured my f19 key to act as an apps key:
#+begin_src emacs-lisp
(define-key key-translation-map (kbd "<f19>") (kbd "<apps>"))
#+end_src

It works great and I can bind it to many things. Unfortunately, there is
one thing I don't know how to do: how to use this key to input another
binding. I thought the following would work:
#+begin_src emacs-lisp
(define-key key-translation-map (kbd "<apps> d") (kbd "C-c"))
#+end_src

but when I try to see if it gets translated, I see that it does not:

,----
| <apps> d (translated from <f19> d) is undefined
`----

Is there a way to make this work?

Thanks,

Alan

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Re: key-translation-map not taken into account?

[Michael Heerdegen]

Alan Schmitt <alan.schmitt@polytechnique.org> writes:

> (define-key key-translation-map (kbd "<f19>") (kbd "<apps>"))

> (define-key key-translation-map (kbd "<apps> d") (kbd "C-c"))


> | <apps> d (translated from <f19> d) is undefined


Probably key-translation-map is applied only once, not repeatedly.

I would just bind (kbd "<f19> d").  Is this an example (then, what is
your original goal?), or do you really prefer typing <f19 d> over <C-c>?


Michael.

Re: key-translation-map not taken into account?

[Stefan Monnier]

> (define-key key-translation-map (kbd "<f19>") (kbd "<apps>"))

Why did you choose key-translation-map over function-key-map or
input-decode-map?


        Stefan

Re: key-translation-map not taken into account?

[Alan Schmitt]

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On 2015-06-07 21:20, Michael Heerdegen <michael_heerdegen@web.de> writes:

> Probably key-translation-map is applied only once, not repeatedly.

This is probably it. Stefan's suggestion allowed me to find a solution,
though.

> I would just bind (kbd "<f19> d").  Is this an example (then, what is
> your original goal?), or do you really prefer typing <f19 d> over <C-c>?

I really prefer typing this: <f19> is Caps Lock on my keyboard, so it's
easy to reach.

Best,

Alan

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Re: key-translation-map not taken into account?

[Alan Schmitt]

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On 2015-06-08 04:29, Stefan Monnier <monnier@iro.umontreal.ca> writes:

>> (define-key key-translation-map (kbd "<f19>") (kbd "<apps>"))
>
> Why did you choose key-translation-map over function-key-map or
> input-decode-map?

Ignorance … I was put off by the description of `input-decode-map' that
starts with:

     This variable holds a keymap that describes the character
     sequences sent by function keys on an ordinary character terminal.

I also read about using `key-translation-map' this way at
https://ergoemacs.github.io/faq.html and it was working well until
I wanted to chain them.

Thanks to your suggestion, this is what I'm now doing:

#+begin_src emacs-lisp
(define-key local-function-key-map (kbd "<f19>") (kbd "<apps>"))
(define-key key-translation-map (kbd "<apps> d") (kbd "C-c"))
#+end_src

Everything seems to be working this way.

Thanks again,

Alan

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