Re: merging results from completion-at-point-functions

[Stefan Monnier via Users list for the GNU Emacs text editor <help-gnu-emacs@gnu.org>]

Eric S Fraga [2022-05-01 17:29:54] wrote:
> On Friday, 29 Apr 2022 at 16:52, Stefan Monnier via Users list for the GNU Emacs text editor wrote:
>>>> (setq-local completion-at-point-functions
>>>>     (list (cape-super-capf #'cape-dabbrev #'cape-dict #'cape-keyword)))
>>
>> Note that this sets up these CAPF functions only for the buffer that's
>> current when the code is executed, so if you put it into your .emacs
>> it's probably going to affect completions in *scratch* only.
>
> Yes, that's clear.  Thank you.
>
> I am setting the variable in the right place to have
> it set for the buffer I am writing in.  But it just doesn't do anything
> when I try to complete.
>
> To check, if I use
>
> (setq-local completion-at-point-functions (list #'cape-dabbrev))
>
> instead of the expression above, that particular capf does get invoked.

What happens if you go to the place where you want completion to take
place and then do:

    M-: (funcall (cape-super-capf #'cape-dabbrev #'cape-dict #'cape-keyword)) RET

[ It's not supposed to have any effect other than returning a value, so
  the question is what value does it return.  ]


        Stefan