Re: [PATCH] `completing-read`: Add `group-function` support to completion metadata (REVISED PATCH VERSION 2)

[Stefan Monnier]

> I tried to remove `read-char-by-name-group`, but it has a feature
> currently not supported by `group-function`:
>
>   (defcustom read-char-by-name-group nil
>     "How to group characters for `read-char-by-name' completion.
>   When t, split characters to sections of Unicode blocks
>   sorted alphabetically."
>   =====================
>
> It seems a new function is needed to sort groups, e.g. `group-sort-function`.

I think whether the groups should be sorted alphabetically or "by order
of appearance" can be a choice made by the UI rather than by the
completion-table.


        Stefan