GNU bug report logs - #876
^M in some Windows info files because of null-byte detection

Previous Next

Full log

View this message in rfc822 format

From: help-debbugs <at> gnu.org (Emacs bug Tracking System)
To: Eli Zaretskii <eliz <at> gnu.org>
Subject: bug#1117: marked as done (23.0.60; Index in Elisp manual has ^M 
 at the end of each line)
Date: Sat, 10 Jan 2009 11:25:07 +0000

[Message part 1 (text/plain, inline)]

Your message dated Sat, 10 Jan 2009 13:15:51 +0200
with message-id <uab9zjtso.fsf <at> gnu.org>
and subject line Re: ^M in the info files
has caused the Emacs bug report #876,
regarding 23.0.60; Index in Elisp manual has ^M at the end of each line
to be marked as done.

This means that you claim that the problem has been dealt with.
If this is not the case it is now your responsibility to reopen the
bug report if necessary, and/or fix the problem forthwith.

(NB: If you are a system administrator and have no idea what this
message is talking about, this may indicate a serious mail system
misconfiguration somewhere. Please contact help-debbugs <at> gnu.org
immediately.)


-- 
876: http://debbugs.gnu.org/cgi/bugreport.cgi?bug=876
Emacs Bug Tracking System
Contact help-debbugs <at> gnu.org with problems

[Message part 2 (message/rfc822, inline)]

From: "Drew Adams" <drew.adams <at> oracle.com>
To: <emacs-pretest-bug <at> gnu.org>
Subject: 23.0.60; Index in Elisp manual has ^M at the end of each line
Date: Tue, 7 Oct 2008 23:49:07 -0700

emacs -Q
C-h i, choose Elisp manual
g Index takes you to the Index node.
 
Each line has a visible ^M at the end of it.
 

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
  value of $XMODIFIERS: nil
  locale-coding-system: cp1252
  default-enable-multibyte-characters: t
 
Major mode: Info
 
Minor modes in effect:
  tooltip-mode: t
  tool-bar-mode: t
  mouse-wheel-mode: t
  menu-bar-mode: t
  file-name-shadow-mode: t
  global-font-lock-mode: t
  font-lock-mode: t
  blink-cursor-mode: t
  global-auto-composition-mode: t
  auto-composition-mode: t
  auto-encryption-mode: t
  auto-compression-mode: t
  line-number-mode: t
  transient-mark-mode: t
 
Recent input:
<help-echo> C-h i <help-echo> <help-echo> <help-echo> 
<down-mouse-2> <mouse-2> <double-down-mouse-2> <double-mouse-2> 
<help-echo> g I n d e x <return> <help-echo> <help-echo> 
<help-echo> <help-echo> <help-echo> <help-echo> <help-echo> 
<help-echo> <help-echo> <help-echo> <menu-bar> <help-menu> 
<send-emacs-bug-report>
 
Recent messages:
For information about GNU Emacs and the GNU system, type C-h C-a.
Composing main Info directory...done

[Message part 3 (message/rfc822, inline)]

From: Eli Zaretskii <eliz <at> gnu.org>
To: 876-done <at> debbugs.gnu.org
Cc: emacs-devel <at> gnu.org, bug-gnu-emacs <at> gnu.org, emacs-pretest-bug <at> gnu.org
Subject: Re: ^M in the info files
Date: Sat, 10 Jan 2009 13:15:51 +0200

> Date: Sat, 29 Nov 2008 00:39:27 +0200
> From: Eli Zaretskii <eliz <at> gnu.org>
> Cc: lekktu <at> gmail.com, emacs-devel <at> gnu.org, monnier <at> iro.umontreal.ca,
> 	handa <at> m17n.org
> 
> > From: "Drew Adams" <drew.adams <at> oracle.com>
> > Date: Fri, 28 Nov 2008 13:28:34 -0800
> > Cc: 'Juanma Barranquero' <lekktu <at> gmail.com>, emacs-devel <at> gnu.org
> > 
> > Whatever happened to this thread and the associated bugs: #876, #1117, #1284?
> > 
> > It sounds like there were alternative proposals about how to fix this, but there
> > was no discussion to try to reach a consensus or a decision. Is that where
> > things were left?
> > 
> > Meanwhile, it's still impossible to use the index in Info manuals on Windows,
> > and it's impossible to use some manuals (e.g. Viper) at all.
> 
> Don't worry, this will get fixed before Emacs 23 is ready for release.
> 
> I will work on it soon if no one beats me to it.

(Fore some value of "soon", sorry.)

I fixed this bug.

There were two suggestions for how to fix this: one by Handa-san in
this message:

  http://lists.gnu.org/archive/html/emacs-devel/2008-08/msg00293.html

followed by a tentative patch by Juanma here:

  http://lists.gnu.org/archive/html/emacs-devel/2008-08/msg00316.html

The other suggestion was by Stefan:

  http://lists.gnu.org/archive/html/emacs-devel/2008-08/msg00373.html

I decided I liked the first alternative better, since it has much
more local effect than the other one.  What Stefan suggested implied
messing with coding priorities, and I didn't feel that was TRT at this
late stage in Emacs 23.1 development.

The changes I installed are more thorough than what Juanma posted:
they change both detect_coding and detect_coding_system, and also bind
inhibit-null-byte-detection in a couple more places in info.el.

The result was tested on GNU/Linux, MS-Windows, and MS-DOS, both with
compressed and uncompressed Info files, with auto-compression-mode
both on and off.

Previous Next

GNU bug tracking system
Copyright (C) 1999 Darren O. Benham, 1997,2003 nCipher Corporation Ltd, 1994-97 Ian Jackson.