bug#1816: marked as done (23.0.60; ^M in CC mode manual.)

[owner@emacsbugs.donarmstrong.com (Emacs bug Tracking System)]

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Your message dated Sat, 10 Jan 2009 13:15:51 +0200
with message-id <uab9zjtso.fsf@gnu.org>
and subject line Re: ^M in the info files
has caused the Emacs bug report #876,
regarding 23.0.60; ^M in CC mode manual.
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 owner@emacsbugs.donarmstrong.com
immediately.)


-- 
876: http://emacsbugs.donarmstrong.com/cgi-bin/bugreport.cgi?bug=876
Emacs Bug Tracking System
Contact owner@emacsbugs.donarmstrong.com with problems

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From: "Matzi Kratzi" <matzikratzi@gmail.com>
To: emacs-pretest-bug@gnu.org
Subject: 23.0.60; ^M in CC mode manual.
Date: Wed, 7 Jan 2009 12:55:44 +0100
Message-ID: <7f9b11c90901070355x3842939fo31e7725bc0989b43@mail.gmail.com>

Please write in English if possible, because the Emacs maintainers
usually do not have translators to read other languages for them.

Your bug report will be posted to the emacs-pretest-bug@gnu.org mailing list.

Please describe exactly what actions triggered the bug
and the precise symptoms of the bug:

All (probably most) lines in the CC Mode info manual are ended with ^M.
I use a build from Lennart Borgman.

If Emacs crashed, and you have the Emacs process in the gdb debugger,
please include the output from the following gdb commands:
    `bt full' and `xbacktrace'.
If you would like to further debug the crash, please read the file
c:/Download/emacs-090104/emacs/etc/DEBUG for instructions.


In GNU Emacs 23.0.60.1 (i386-mingw-nt5.0.2195)
 of 2009-01-04 on LENNART-69DE564
Windowing system distributor `Microsoft Corp.', version 5.0.2195
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: SVE
  value of $XMODIFIERS: nil
  locale-coding-system: cp1252
  default-enable-multibyte-characters: t

Major mode: Info

Minor modes in effect:
  which-function-mode: t
  show-paren-mode: t
  iswitchb-mode: t
  tooltip-mode: t
  mouse-wheel-mode: t
  menu-bar-mode: t
  file-name-shadow-mode: t
  global-font-lock-mode: t
  font-lock-mode: t
  global-auto-composition-mode: t
  auto-composition-mode: t
  auto-encryption-mode: t
  auto-compression-mode: t
  column-number-mode: t
  line-number-mode: t
  transient-mark-mode: t

Recent input:
C-h i C-s l i b m <return> <return> SPC u u <up> <return>
SPC SPC SPC SPC u u u <up> <return> u <up> <up> <up>
<up> <up> <return> u C-s c c - m o <backspace> <backspace>
<backspace> SPC m o <backspace> <backspace> <backspace>
C-s M-< C-s C-s <return> <return> M-x c o m p <backspace>
<backspace> <backspace> <backspace> r e p o r t SPC
e m a SPC SPC <return>

Recent messages:
Info-extract-pointer: Node has no Up
uncompressing gv.info.gz...done
uncompressing gv.info.gz...done
uncompressing gv.info.gz...done
uncompressing cygwin-ug-net.info.gz...done
uncompressing cygwin-ug-net.info.gz...done
uncompressing cygwin-ug-net.info.gz...done
Mark saved where search started
Mark set
Mark saved where search started



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From: Eli Zaretskii <eliz@gnu.org>
To: 876-done@emacsbugs.donarmstrong.com
Cc: emacs-devel@gnu.org, bug-gnu-emacs@gnu.org, emacs-pretest-bug@gnu.org
Subject: Re: ^M in the info files
Date: Sat, 10 Jan 2009 13:15:51 +0200
Message-ID: <uab9zjtso.fsf@gnu.org>

> Date: Sat, 29 Nov 2008 00:39:27 +0200
> From: Eli Zaretskii <eliz@gnu.org>
> Cc: lekktu@gmail.com, emacs-devel@gnu.org, monnier@iro.umontreal.ca,
> 	handa@m17n.org
> 
> > From: "Drew Adams" <drew.adams@oracle.com>
> > Date: Fri, 28 Nov 2008 13:28:34 -0800
> > Cc: 'Juanma Barranquero' <lekktu@gmail.com>, emacs-devel@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.