bug#51733: 27.1; Detect impossible email addresses better

[Eli Zaretskii]

> From: Andreas Schwab <schwab@linux-m68k.org>
> Cc: larsi@gnus.org,  51733@debbugs.gnu.org,  jidanni@jidanni.org
> Date: Sun, 16 Jan 2022 19:34:29 +0100
> 
> On Jan 16 2022, Eli Zaretskii wrote:
> 
> >> Date: Sun, 16 Jan 2022 20:14:08 +0200
> >> From: Eli Zaretskii <eliz@gnu.org>
> >> Cc: 51733@debbugs.gnu.org, jidanni@jidanni.org
> >> 
> >> > (elt char-script-table #xAB65)
> >> > => latin
> >> > 
> >> > which is wrong, because that's
> >> > 
> >> > GREEK LETTER SMALL CAPITAL OMEGA
> >
> > Btw, this is not necessarily an error, because the Latin language did
> > have the omega letter.  It's not an accident this character is in a
> > Latin block.
> 
> The latin omega has its own code points U+A7B6 and U+A7B7 (since Unicode
> 8.0).

Yes, I know.  But U+AB65 predates Unicode 8.0.

And it's besides the point, really: since omega was in the Latin
alphabet, it is not a mistake to give it the Latin script.