From: Lawrence Mitchell <wence@gmx.li>
To: bug-gnu-emacs@gnu.org
Cc: emacs-pretest-bug@gnu.org
Subject: bug#1187: 23.0.60; Cannot read vline.el - invalid read syntax
Date: Fri, 17 Oct 2008 13:30:24 +0100 [thread overview]
Message-ID: <?fnord?y3h6r66f5rq7.fsf@ID-97657.user.individual.net> (raw)
In-Reply-To: 00f801c92fd5$54f26100$c2b22382@us.oracle.com
Drew Adams wrote:
> Library vline.el can be read fine in Emacs 22, but Emacs 23 raises an
> error, saying Invalid read syntax: "?".
The following sequence of events works for me in
GNU Emacs 23.0.60.4 (i686-pc-linux-gnu, X toolkit, Xaw3d scroll
bars) of 2008-10-07 on lamacq.ph.ed.ac.uk
$ wget http://www.emacswiki.org/cgi-bin/emacs/download/vline.el \
-O /tmp/vline.el
$ LANG=C emacs -Q --eval '(load-file "/tmp/vline.el")'
LANG=C so that current-language-environment is "ASCII"
and default-buffer-file-coding-system is nil.
Successfully prints:
Loading /tmp/vline.el (source)...done
> In GNU Emacs 23.0.60.1 (i386-mingw-nt5.1.2600)
> of 2008-10-03 on LENNART-69DE564
> Windowing system distributor `Microsoft Corp.', version 5.1.2600
> configured using `configure --with-gcc (3.4) --no-opt --cflags -Ic:/g/include
> -fno-crossjumping'
> Important settings:
> value of $LC_ALL: nil
> value of $LC_COLLATE: nil
> value of $LC_CTYPE: nil
> value of $LC_MESSAGES: nil
> value of $LC_MONETARY: nil
> value of $LC_NUMERIC: nil
> value of $LC_TIME: nil
> value of $LANG: ENU
^^^ this seems to be the culprit.
LANG=ENU is an unknown locale here but if LANG=en_GB such that
default-buffer-file-coding-system is iso-latin-1-unix then the
section of the file that causes problems is:
(memq char '(?\t ? ))
where the second character is:
| character: (12288, #o30000, #x3000)
| preferred charset: unicode (Unicode (ISO10646))
| code point: 0x3000
| syntax: _ which means: symbol
| category: c:Chinese h:Korean j:Japanese
| |:While filling, we can break a line at this character.
| buffer code: #xE3 #x80 #x80
| file code: #xE3 #x80 #x80 (encoded by coding system utf-8-unix)
| display: by this font (glyph code)
| xft:-unknown-Kochi Gothic-normal-normal-normal-*-15-*-*-*-*-0-iso10646-1 (#x6F3)
| Character code properties: customize what to show
| name: IDEOGRAPHIC SPACE
| general-category: Zs (Separator, Space)
| decomposition: (<wide> 32) (<wide> ' ')
The difference between emacs-21.3 and emacs 23 appears to be that
the former ignores the two extra bytes when reading in latin-1
but emacs 23 does not:
$ od -c /tmp/f
0000000 ? 343 200 200
0000004
Emacs 23:
(let ((coding-system-for-read 'iso-latin-1)
ret)
(with-temp-buffer
(insert-file-contents "/tmp/f")
(setq ret (read (current-buffer))))
(insert ret))
=>
(invalid-read-syntax "?")
read(#<buffer *temp*>)
----
(let ((coding-system-for-read 'utf-8)
ret)
(with-temp-buffer
(insert-file-contents "/tmp/f")
(setq ret (read (current-buffer))))
(insert ret))
=>
IDEOGRAPHIC SPACE is inserted correctly
Emacs 21.3
(let ((coding-system-for-read 'iso-latin-1)
ret)
(with-temp-buffer
(insert-file-contents "/tmp/f")
(setq ret (read (current-buffer))))
(insert ret))
=>
ã ; LATIN SMALL LETTER A WITH TILDE is inserted.
-----
(let ((coding-system-for-read 'utf-8)
ret)
(with-temp-buffer
(insert-file-contents "/tmp/f")
(setq ret (read (current-buffer))))
(insert ret))
=>
IDEOGRAPHIC SPACE is inserted correctly
--
Lawrence Mitchell <wence@gmx.li>
next prev parent reply other threads:[~2008-10-17 12:30 UTC|newest]
Thread overview: 26+ messages / expand[flat|nested] mbox.gz Atom feed top
[not found] <jwv3aivjkhw.fsf-monnier+emacsbugreports@gnu.org>
2008-10-16 21:22 ` bug#1187: 23.0.60; Cannot read vline.el - invalid read syntax Drew Adams
2008-10-16 23:41 ` Lennart Borgman (gmail)
2008-10-17 0:00 ` Drew Adams
2008-10-17 8:18 ` Eli Zaretskii
2008-10-17 8:36 ` Lennart Borgman (gmail)
2008-10-17 9:57 ` Eli Zaretskii
2008-10-17 8:15 ` Eli Zaretskii
2008-10-17 14:26 ` Drew Adams
2008-10-17 12:30 ` Lawrence Mitchell [this message]
2008-10-17 13:07 ` Eli Zaretskii
2008-10-17 14:40 ` Drew Adams
2008-10-17 15:53 ` Drew Adams
2008-10-17 16:04 ` Eli Zaretskii
2008-10-17 14:58 ` Lennart Borgman (gmail)
2008-10-17 15:18 ` Drew Adams
2008-10-17 15:58 ` Lawrence Mitchell
2008-10-17 16:09 ` Drew Adams
2008-10-17 16:00 ` Eli Zaretskii
2008-10-17 16:21 ` Drew Adams
2008-10-17 18:24 ` Eli Zaretskii
2008-10-20 10:28 ` Kenichi Handa
2008-10-20 10:58 ` Eli Zaretskii
2008-10-21 2:40 ` Kenichi Handa
2008-10-21 4:46 ` Drew Adams
2008-10-17 15:55 ` bug#1187: marked as done (23.0.60; Cannot read vline.el - invalid read syntax) Emacs bug Tracking System
[not found] ` <handler.1187.D1187.122425837312105.notifdone@emacsbugs.donarmstrong.com>
2008-10-17 16:48 ` bug#1187: closed by Stefan Monnier <monnier@iro.umontreal.ca> (Re: bug#1187: 23.0.60; " Drew Adams
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