Passing user selection to a command

Passing user selection to a command

[Heime]

How can I pass the user selection to 'activate-input-method' ?


(defun glossus ()

  (interactive
   (list
    (let ( (cseq '("italian-alt-postfix" "italian-keyboard"
                     "italian-postfix")) )
      (completing-read
        " Glossus: " cseq nil t "italian-postfix"))))

  (setq ispell-local-dictionary "it_IT")
  (activate-input-method "italian-postfix") )

Re: Passing user selection to a command

[Bruno Barbier]

Hi,

Heime <heimeborgia@protonmail.com> writes:

> How can I pass the user selection to 'activate-input-method' ?
>
>
> (defun glossus ()
>
>   (interactive
>    (list
>     (let ( (cseq '("italian-alt-postfix" "italian-keyboard"
>                      "italian-postfix")) )
>       (completing-read
>         " Glossus: " cseq nil t "italian-postfix"))))
>
>   (setq ispell-local-dictionary "it_IT")
>   (activate-input-method "italian-postfix") )

IIUC, you could do this:

    (defun my-glossus (user-sel)  ;; <==== var name here
      (interactive 
       (list
        (let ( (cseq '("italian-alt-postfix" "italian-keyboard"
                       "italian-postfix")) )
          (completing-read
           " Glossus: " cseq nil t "italian-postfix"))))

      (setq ispell-local-dictionary "it_IT")
      (activate-input-method user-sel))
      

Bruno

Re: Passing user selection to a command

[Heime]

Sent with Proton Mail secure email.

On Tuesday, March 19th, 2024 at 11:01 PM, Bruno Barbier <brubar.cs@gmail.com> wrote:

> Hi,
> 
> Heime heimeborgia@protonmail.com writes:
> 
> > How can I pass the user selection to 'activate-input-method' ?
> > 
> > (defun glossus ()
> > 
> > (interactive
> > (list
> > (let ( (cseq '("italian-alt-postfix" "italian-keyboard"
> > "italian-postfix")) )
> > (completing-read
> > " Glossus: " cseq nil t "italian-postfix"))))
> > 
> > (setq ispell-local-dictionary "it_IT")
> > (activate-input-method "italian-postfix") )
> 
> 
> IIUC, you could do this:
> 
> (defun my-glossus (user-sel) ;; <==== var name here
> (interactive
> (list
> (let ( (cseq '("italian-alt-postfix" "italian-keyboard"
> "italian-postfix")) )
> (completing-read
> " Glossus: " cseq nil t "italian-postfix"))))
> 
> (setq ispell-local-dictionary "it_IT")
> (activate-input-method user-sel))
> 
> Bruno

The documentation states that if some other input method is already active,
it is to be turned off first.  How can I make the function do this ?

Re: Passing user selection to a command

[Bruno Barbier]

Heime <heimeborgia@protonmail.com> writes:

> Sent with Proton Mail secure email.
>
> On Tuesday, March 19th, 2024 at 11:01 PM, Bruno Barbier <brubar.cs@gmail.com> wrote:
>
>> Hi,
>> 
>> Heime heimeborgia@protonmail.com writes:
>> 
>> > How can I pass the user selection to 'activate-input-method' ?
>> > 
>> > (defun glossus ()
>> > 
>> > (interactive
>> > (list
>> > (let ( (cseq '("italian-alt-postfix" "italian-keyboard"
>> > "italian-postfix")) )
>> > (completing-read
>> > " Glossus: " cseq nil t "italian-postfix"))))
>> > 
>> > (setq ispell-local-dictionary "it_IT")
>> > (activate-input-method "italian-postfix") )
>> 
>> 
>> IIUC, you could do this:
>> 
>> (defun my-glossus (user-sel) ;; <==== var name here
>> (interactive
>> (list
>> (let ( (cseq '("italian-alt-postfix" "italian-keyboard"
>> "italian-postfix")) )
>> (completing-read
>> " Glossus: " cseq nil t "italian-postfix"))))
>> 
>> (setq ispell-local-dictionary "it_IT")
>> (activate-input-method user-sel))
>> 
>> Bruno
>
> The documentation states that if some other input method is already active,
> it is to be turned off first.  How can I make the function do this ?

The documentation of `activate-input-method' ?
  | If INPUT-METHOD is nil, deactivate any current input method.

IIUB (if I understand better ;-) ), as I'm reading it, it says that
`activate-input-method' will take care to turn previous methods OFF.
You don't have to do anything.

Bruno

Re: Passing user selection to a command

[Heime]

Sent with Proton Mail secure email.

On Wednesday, March 20th, 2024 at 12:32 AM, Bruno Barbier <brubar.cs@gmail.com> wrote:

> Heime heimeborgia@protonmail.com writes:
> 
> > Sent with Proton Mail secure email.
> > 
> > On Tuesday, March 19th, 2024 at 11:01 PM, Bruno Barbier brubar.cs@gmail.com wrote:
> > 
> > > Hi,
> > > 
> > > Heime heimeborgia@protonmail.com writes:
> > > 
> > > > How can I pass the user selection to 'activate-input-method' ?
> > > > 
> > > > (defun glossus ()
> > > > 
> > > > (interactive
> > > > (list
> > > > (let ( (cseq '("italian-alt-postfix" "italian-keyboard"
> > > > "italian-postfix")) )
> > > > (completing-read
> > > > " Glossus: " cseq nil t "italian-postfix"))))
> > > > 
> > > > (setq ispell-local-dictionary "it_IT")
> > > > (activate-input-method "italian-postfix") )
> > > 
> > > IIUC, you could do this:
> > > 
> > > (defun my-glossus (user-sel) ;; <==== var name here
> > > (interactive
> > > (list
> > > (let ( (cseq '("italian-alt-postfix" "italian-keyboard"
> > > "italian-postfix")) )
> > > (completing-read
> > > " Glossus: " cseq nil t "italian-postfix"))))
> > > 
> > > (setq ispell-local-dictionary "it_IT")
> > > (activate-input-method user-sel))
> > > 
> > > Bruno
> > 
> > The documentation states that if some other input method is already active,
> > it is to be turned off first. How can I make the function do this ?
> 
> 
> The documentation of `activate-input-method' ? | If INPUT-METHOD is nil, deactivate any current input method. IIUB (if I understand better ;-) ), as I'm reading it, it says that` activate-input-method' will take care to turn previous methods OFF.
> You don't have to do anything.
> 
> Bruno

The documentation for activate-input-method says

"If some other input method is already active, turn it off first."

It is not very clear whether the user should turn it off, or whether the
activate-input-method function will turn INPUT-METHOD off automatically.

Re: Passing user selection to a command

[Bruno Barbier]

Heime <heimeborgia@protonmail.com> writes:

>
> The documentation for activate-input-method says
>
> "If some other input method is already active, turn it off first."
>
> It is not very clear whether the user should turn it off, or whether the
> activate-input-method function will turn INPUT-METHOD off automatically.

I'm not a native speaker; I agree it could be both.  I've even checked
the source code before answering to be sure ;-)

Re: Passing user selection to a command

[Stefan Monnier via Users list for the GNU Emacs text editor]

> The documentation for activate-input-method says
>
> "If some other input method is already active, turn it off first."
>
> It is not very clear whether the user should turn it off, or whether the
> activate-input-method function will turn INPUT-METHOD off automatically.

It becomes more clear once you're familiar with the way docstrings are
written: they usually describe what the function does rather than what
the caller should do.  So when they say something about what the caller
should do, they usually do so explicitly.

IOW, if the user needs to turn it off first, the docstring would say
something like "some other IM should not be already active" or "if some
other IM is already active, do nothing".


        Stefan

Re: Passing user selection to a command

[Heime]

On Wednesday, March 20th, 2024 at 3:56 AM, Bruno Barbier <brubar.cs@gmail.com> wrote:

> Heime heimeborgia@protonmail.com writes:
> 
> > The documentation for activate-input-method says
> > 
> > "If some other input method is already active, turn it off first."
> > 
> > It is not very clear whether the user should turn it off, or whether the
> > activate-input-method function will turn INPUT-METHOD off automatically.
> 
> 
> I'm not a native speaker; I agree it could be both. I've even checked
> the source code before answering to be sure ;-)

Changing the documentation to clarify the behavior of activate-input-method 
would indeed be beneficial for users.   If the documentation clearly explains
whether activate-input-method turns off the current input method automatically
before activating the new one, or if users need to explicitly deactivate it 
with set-input-method, they can make informed decisions.

Correct Usage: Clear documentation hel