bug#935: 23.0.60; gnus-mime-view-part-as-charset displays non-ASCII characters as octals

[Sven Joachim <svenjoac@gmx.de>]

I have a problem with the gnus-mime-view-part-as-charset command that
only shows up in Emacs 23, not sure whether this is a bug in Emacs or in
Gnus.

If an article has attachment with a wrongly specified charset, Gnus can
work around that with the gnus-mime-view-part-as-charset command.  For
instance, <news:20080908175652.GF4996@firemoth> on
gmane.linux.debian.internationalization.german aka
debian-l10n-german@lists.debian.org is such an article, it has an
attachment that is incorrectly described as "Content-Type: text/x-diff;
charset=utf-8" while it's actually encoded as iso-latin-1.  Now when I
press C RET iso-latin-1, Emacs displays the German umlauts as octal
sequences.  In Emacs 22.3, they are displayed correctly (Gnus version is
the same, current No Gnus CVS).


In GNU Emacs 23.0.60.4 (i686-pc-linux-gnu, GTK+ Version 2.12.11)
 of 2008-09-08 on debian
Windowing system distributor `The X.Org Foundation', version 11.0.10402000
Important settings:
  value of $LC_ALL: nil
  value of $LC_COLLATE: C
  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: de_DE.UTF-8
  value of $XMODIFIERS: nil
  locale-coding-system: utf-8-unix
  default-enable-multibyte-characters: t

Major mode: Summary

Minor modes in effect:
  diff-auto-refine-mode: t
  gnus-mailing-list-mode: t
  display-time-mode: t
  auto-image-file-mode: t
  show-paren-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
  temp-buffer-resize-mode: t
  column-number-mode: t
  line-number-mode: t
  transient-mark-mode: t

Recent input:
C-x r b . e m <tab> <return> <C-home> <down> <down> 
<down> <down> <down> <down> <down> <down> <down> <down> 
<down> <down> <down> <down> <down> <down> <down> <down> 
C-e C-x C-e M-x g n u s <return> <down> L <next> <down> 
<down> <down> <down> <down> <down> <down> <down> <down> 
<down> <down> <down> <down> <down> <down> <down> <down> 
<down> <down> <down> <down> <down> <down> <down> <down> 
<down> <down> <down> <down> <down> <down> <down> <down> 
<down> <down> <down> <down> <down> <down> <down> <down> 
<down> <down> <down> <down> <down> <down> <down> <up> 
<up> <up> <up> <up> <up> <up> <return> 2 <return> <down> 
SPC SPC C-x o <down> <down> <down> <down> <down> <down> 
<down> <down> <down> <down> <down> <down> <down> <down> 
<down> <down> <down> <down> <down> C i s o <tab> l 
<tab> 1 <return> C-h k C C-x o <tab> <return> <next> 
<prior> <up> <up> <up> <up> <up> <up> <up> <up> <up> 
<up> <up> <up> <up> <up> <up> <up> <up> <up> <up> <up> 
<up> <up> <up> <up> <right> <right> <right> <right> 
<right> <right> <right> <right> <right> <right> <left> 
<left> <left> C-SPC M-f M-f M-f M-f M-f M-f M-w <next> 
q C-x 1 <f7> <down> <down> <down> <return> SPC <backspace> 
M-x r e p o r t - e m <tab> <return>

Recent messages:
Fetching headers for gmane.linux.debian.internationalization.german...done
Scoring...done
Generating summary...done
No more unread articles
Type C-x 4 o RET to restore the other window, C-M-v to scroll help.
mouse-2, RET: find function's definition
Note: file is write protected
Mark set
Buffer is read-only: #<buffer gnus-art.el>
Commands: d, s, x, u; f, o, 1, 2, m, v; ~, %; q to quit; ? for help.