From: Kenichi Handa <handa@ni.aist.go.jp>
To: Katsumi Yamaoka <yamaoka@jpl.org>
Cc: ding@gnus.org, emacs-devel@gnu.org
Subject: Re: [Unicode-2] `read' always returns multibyte symbol
Date: Thu, 15 Nov 2007 23:41:23 +0900 [thread overview]
Message-ID: <E1IsfuF-0004nF-9Q@etlken.m17n.org> (raw)
In-Reply-To: <b4moddv20sy.fsf@jpl.org> (message from Katsumi Yamaoka on Thu, 15 Nov 2007 20:41:33 +0900)
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In article <b4moddv20sy.fsf@jpl.org>, Katsumi Yamaoka <yamaoka@jpl.org> writes:
> > If "modifies" means that 8-bit bytes are converted to
> > multibyte characters as what string-as-multibyte does, it's
> > an expected behaviour.
> What I observed was different. The group name "テスト" is
> encoded by utf-8 by the nntp server into:
> "\343\203\206\343\202\271\343\203\210"
> After it is transferred to Gnus, in the nntp process bufer it is
> modified into:
> "\343\203XY\343\203\210"
> Where X is (make-char 'greek-iso8859-7 99)
> and Y is (make-char 'latin-iso8859-2 57).
That is exactly what string-as-multibyte does. \206\343 and
\202\271 are valid multibyte forms in the current Emacs,
thus are treated as multibyte characters.
> Since Gnus treats a group name as a unibyte string, finally it
> is made into:
> "\343\203\343\271\343\203\210"
It seems that gnus treats "\343\203XY\343\203\210" as
unibyte by converting it by string-make-unibyte.
Please try this:
(string-make-unibyte
(string-as-multibyte "\343\203\206\343\202\271\343\203\210"))
You'll get the above result, ... yes, very weird.
On the other hand,
(string-as-unibyte
(string-as-multibyte "\343\203\206\343\202\271\343\203\210"))
=> "\343\203\206\343\202\271\343\203\210"
> > I long ago proposed a facility that turns on the
> > multibyteness of a buffer while converting 8-bit bytes to
> > multibyte characters as what string-to-multibyte does, but
> > not accepted.
> But the modern Emacsen does do so, doesn't it?
No.
---
Kenichi Handa
handa@ni.aist.go.jp
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next prev parent reply other threads:[~2007-11-15 14:41 UTC|newest]
Thread overview: 23+ messages / expand[flat|nested] mbox.gz Atom feed top
2007-11-13 9:41 Katsumi Yamaoka
2007-11-13 12:55 ` Kenichi Handa
2007-11-13 15:10 ` Stefan Monnier
2007-11-14 4:53 ` Kenichi Handa
2007-11-14 3:56 ` Katsumi Yamaoka
2007-11-14 11:39 ` Katsumi Yamaoka
2007-11-14 14:52 ` Stefan Monnier
2007-11-14 23:52 ` Katsumi Yamaoka
2007-11-15 1:15 ` Stefan Monnier
2007-11-15 3:01 ` Katsumi Yamaoka
2007-11-15 3:39 ` Stefan Monnier
2007-11-15 10:20 ` Katsumi Yamaoka
2007-11-15 11:08 ` Kenichi Handa
2007-11-15 11:41 ` Katsumi Yamaoka
2007-11-15 14:41 ` Kenichi Handa [this message]
2007-11-15 23:31 ` Katsumi Yamaoka
2007-11-16 0:51 ` Kenichi Handa
2007-11-16 1:24 ` Katsumi Yamaoka
2007-11-16 2:51 ` Stefan Monnier
2007-11-15 15:22 ` Stefan Monnier
2007-11-16 0:29 ` Kenichi Handa
2007-11-16 10:50 ` Eli Zaretskii
2007-11-13 15:07 ` Stefan Monnier
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