Re: Question about completion behavior

[Ergus]

On Sun, Mar 13, 2022 at 07:44:49PM +0200, Juri Linkov wrote:
> > > Maybe better to have the whole string with all text properties
> > > as the default value of 'completion-header-text-property-list'
> > > that then could be renamed to e.g. 'completion-header-string'?
> > I don't know a simple way for creating a string with the properties in a
> > single call.  We may need a sort of wrapper function that initializes
> > the string and call set properties in a single call otherwise the user
> > may need to do it manually... Something like:
> >
> > (defun make-text-with-properties (string properties)
> >        (let ((out string))
> >             (set-text-properties ...)
> >             out))
> >
> > Any better idea?
>
> Something like
>
>  (defvar completion-header-format
>    (propertize "%s possible completions:"
>                'face 'shadow
>                :help "Please select a completion")
>    "Format of completion header.")
Interesting... I couldn't find the propertize function in the text
property section of the manual... Done.

> > The other detail is that there are 2 strings: "Possible completions are"
> > and "There are no possible completions of what you have typed."
>
> In case of no completions it will be formatted to: "0 possible completions".
I am perfectly fine with that I was just wondering is anyone will
complain just becaus the previous message changed.

> > > Regarding 'completion-lazy-count': it would be even better to allow
> > > customization of this format like in 'icomplete-matches-format'
> > > that was recently added in 28.1.
> > Probably the best is to join the two variables in
> > completion-header-string and allow it to have a %s for a count... I will
> > go in that way.
> >
> > Is it OK?
>
> It's OK, like above.

Thanks, please check/correct it.