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From: Lars Ingebrigtsen <larsi@gnus.org>
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Subject: bug#17758: 24.3;
 The line isn't wrapped during printing if it contains non ascii chars
Date: Sat, 29 May 2021 08:41:38 +0200
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Cc: Kenichi Handa <handa@gnu.org>, 17758@debbugs.gnu.org, tobias.bora@gmail.com
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Eli Zaretskii <eliz@gnu.org> writes:

> I'm not sure I understand the fix, can you explain it?

I'm not sure I understand it either.  :-/

(string-match "^[\000-=C3=BF]+" "=C3=A9foo")
=3D> 0

(string-match "^[\000-\377]+" "=C3=A9foo")
=3D> nil

Which surprised me.

--=20
(domestic pets only, the antidote for overdose, milk.)
   bloggy blog: http://lars.ingebrigtsen.no