Re: Unicode confusables and reordering characters considered harmful

[Eli Zaretskii]

> Date: Wed, 03 Nov 2021 09:59:46 +0000
> From: Gregory Heytings <gregory@heytings.org>
> cc: Eli Zaretskii <eliz@gnu.org>, Stefan Kangas <stefan@marxist.se>, 
>     cpitclaudel@gmail.com, emacs-devel@gnu.org
> 
> There's some data that shows that this is extremely rare in general: the 
> Rust Security Response WG analyzed the 70322 crates and found only 5 in 
> which these codepoints were present (see [1]).  That's ~0.01 %.
> 
> Moreover such highlighting does not make the source code or text 
> unreadable, even in those few legitimate cases.

The statistics are irrelevant when you actually need to deal with such
a rare case.

> Therefore I suggest to experiment with the attached patch during a month 
> or so, and see if there are objections.

I object already.  We shouldn't settle for easy half-solutions when we
are fully capable of implementing the much more complete and accurate
ones.