bug#70321: Can not turn completion-at-point on a per-mode basis on modes derived from text-mode

[Eshel Yaron via "Bug reports for GNU Emacs, the Swiss army knife of text editors" <bug-gnu-emacs@gnu.org>]

Pedro Andres Aranda Gutierrez <paaguti@gmail.com> writes:

> Hi Eshel
>
> thanks for confirming my understanding. So now, my only "request" would be to add Elisp code
> to make it easier to manage the c-a-p-f.
>
> My main concern is that they are people out there to whom the additional information provided
> by ispell-completion-at-point is a burden more than a help.

By default Emacs doesn't show this information unless and until you ask
for it, by invoking 'completion-at-point'.  Moreover we use a low
priority for 'ispell-completion-at-point' so it only kicks in if no
other 'completion-at-point' function (backend) is available.  So in
principle I wouldn't think this should burden anyone.

If you've configured Emacs to automatically show 'completion-at-point'
results via one package or another, and you want to exclude the results
of 'ispell-completion-at-point' from that auto-completion, either
configure your auto-completion set up to skip this function or use
'text-mode-ispell-word-completion' to avoid adding this function to
'completion-at-point-functions' in the first place.  If you then want to
add 'ispell-completion-at-point' to c-a-p-f in some other mode, perhaps
a text-mode derivative, use 'add-hook' as usual.  Does that make sense?


Best,

Eshel