From: "Mattias Engdegård" <mattiase@acm.org>
To: Lars Ingebrigtsen <larsi@gnus.org>, Eli Zaretskii <eliz@gnu.org>,
Kenichi Handa <handa@gnu.org>,
17758@debbugs.gnu.org, tobias.bora@gmail.com
Subject: bug#17758: 24.3; The line isn't wrapped during printing if it contains non ascii chars
Date: Sat, 29 May 2021 10:09:27 +0200 [thread overview]
Message-ID: <AFE4551B-A066-44F5-A4AF-0ACFA1DC265C@acm.org> (raw)
In-Reply-To: <877g4nm9c1.fsf@leo-kub-port.i-did-not-set--mail-host-address--so-tickle-me>
> (string-match "^[\000-ÿ]+" "éfoo")
> => 0
>
> (string-match "^[\000-\377]+" "éfoo")
> => nil
Yes, this is by design. The former is the range U+0000..U+00FF and covers Latin-1. The latter covers ASCII and raw bytes, but no non-ASCII Unicode characters.
It is what we get when one interval endpoint is ASCII and the other a raw byte; it is mainly intended for regexp matching in unibyte text. Since the Emacs multibyte encoding puts the raw bytes 80..FF at the very end of the character numbering, [\000-\377] would include every Unicode character (which would be very surprising) if we didn't have this mechanism.
next prev parent reply other threads:[~2021-05-29 8:09 UTC|newest]
Thread overview: 10+ messages / expand[flat|nested] mbox.gz Atom feed top
2014-06-11 21:21 bug#17758: 24.3; The line isn't wrapped during printing if it contains non ascii chars Tobias Bora
2016-02-13 11:07 ` Marcin Borkowski
2021-05-29 5:38 ` Lars Ingebrigtsen
2021-05-29 6:38 ` Eli Zaretskii
2021-05-29 6:41 ` Lars Ingebrigtsen
2021-05-29 7:01 ` Eli Zaretskii
2021-05-29 8:19 ` Andreas Schwab
2021-05-29 8:09 ` Mattias Engdegård [this message]
2021-05-30 4:04 ` Lars Ingebrigtsen
2021-05-30 10:20 ` Eli Zaretskii
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