Re: emacs-28 a866674b2a: Fix inaccuracies in "lax search" documentation

[Eli Zaretskii <eliz@gnu.org>]

> From: Robert Pluim <rpluim@gmail.com>
> Cc: emacs-devel@gnu.org
> Date: Tue, 26 Jul 2022 16:23:47 +0200
> 
> >>>>> On Tue, 26 Jul 2022 16:16:35 +0300, Eli Zaretskii <eliz@gnu.org> said:
> 
>     >> I didnʼt pick up on this earlier. What do you mean by "easier
>     >> customization of char-fold.el"? I thought the various include/exclude
>     >> vars were all customizable already?
> 
>     Eli> Yes, but the values are not very friendly for interactive
>     Eli> customizations, IMNSHO.
> 
> Theyʼre fundamentally mappings from a base char to a set of
> 'equivalent' chars. You can use 'C-x 8 RET' to enter any of them, and
> you can delete the entries for a base char easily, so I guess Iʼm
> missing the difficulty (but then UX is always very personal).

Well, one question that it would be nice to be able to ask Emacs is
"show me all the characters that resemble CH", so that users could
decide what to add to the existing set.

Another potential issue is how does one easily delete a character from
the list, when what is known is its name or codepoint?  Using Isearch
with \N{...} or "C-x 8 RET" is quite advanced.