23.0.60; Emacs does not complain about incorrect encoding

[Sébastien Vauban]

Hi,

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 address@hidden mailing list.

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

I am editing a small XML file (let's call it `problem.xml'):

--8<---------------cut here---------------start------------->8---
    <enumType name="test">
      <pair value="0">- Sélectionner -</pair>
      <pair value="11">Dû à l'entreprise</pair>
      <pair value="12">Stagiaire occupé</pair>
      <pair value="13">Autres</pair>
    </enumType>
--8<---------------cut here---------------end--------------->8---

As you can see, my file does not start with:

    <?xml version="1.0" encoding="ISO-8859-1"?>

neither does it contain local variables nor other cookies.

By default, following the standard, this has to be saved as
utf-8. But, as this file will be processed by an application
that requires it to be encoded with iso-latin-1, I press `C-x
RET f' to ask Emacs for saving my buffer in iso-latin-1.

The problem is that my request to "use iso-latin-1 for saving
this buffer" is not respected: after the save, the mode-line
still indicates utf-8 encoding (and so is it)...

The bug really is: it should complain that the file's header
specifies utf-8 encoding (in this case *by omission*) and hence
that latin-1 cannot be used...


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
/usr/share/emacs/23.0.60/etc/DEBUG for instructions.


In GNU Emacs 23.0.60.1 (i486-pc-linux-gnu, GTK+ Version 2.12.0)
 of 2007-12-30 on iridium
 (emacs-snapshot package, version 1:20071229-1~gutsy)
Windowing system distributor `The X.Org Foundation', version 11.0.10300000
configured using `configure  '--build' 'i486-linux-gnu' '--host' 
'i486-linux-gnu' '--prefix=/usr' '--sharedstatedir=/var/lib' 
'--libexecdir=/usr/lib' '--localstatedir=/var' '--infodir=/usr/share/info' 
'--mandir=/usr/share/man' '--with-pop=yes' 
'--enable-locallisppath=/etc/emacs-snapshot:/etc/emacs:/usr/local/share/emacs/23.0.60/site-lisp:/usr/local/share/emacs/site-lisp:/usr/share/emacs/23.0.60/site-lisp:/usr/share/emacs/site-lisp:/usr/share/emacs/23.0.60/leim'
 '--with-x=yes' '--with-x-toolkit=gtk' '--enable-font-backend' '--with-xft' 
'--with-freetype' 'build_alias=i486-linux-gnu' 'host_alias=i486-linux-gnu' 
'CFLAGS=-DDEBIAN -DSITELOAD_PURESIZE_EXTRA=5000 -g -O2''

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: en_US.UTF-8
  value of $XMODIFIERS: nil
  locale-coding-system: utf-8-unix
  default-enable-multibyte-characters: t

Major mode: Article

Minor modes in effect:
  show-paren-mode: t
  recentf-mode: t
  auto-image-file-mode: t
  shell-dirtrack-mode: t
  global-hi-lock-mode: t
  icomplete-mode: t
  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-compression-mode: t
  temp-buffer-resize-mode: t
  column-number-mode: t
  line-number-mode: t
  transient-mark-mode: t
  abbrev-mode: t

Recent input:
n d , <return> SPC SPC F a b r i c e <up> <up> <up> 
<up> <up> <up> <up> <up> <up> <up> <up> <up> <up> <up> 
<up> <up> <down> C-a <return> <up> C c : SPC n e l 
e <tab> C-c C-c . C-g <up> <up> <up> <up> <up> <up> 
<up> <up> <up> <up> <up> <up> <down> <C-right> <C-right> 
<C-right> <C-left> SPC C-c C-c . f r <tab> <return> 
/ N <down> <return> q <down> <return> <down> <down> 
<down> <down> <down> <down> <down> <down> <down> <up> 
<up> <up> <return> SPC SPC SPC SPC SPC SPC SPC SPC 
SPC SPC SPC SPC SPC <backspace> SPC SPC SPC q <up> 
<up> <up> <up> <up> <up> <up> <up> <up> <up> <up> <up> 
<up> <up> <up> <up> <up> <up> <up> <up> <up> <up> <up> 
<up> <up> <up> c y p <return> q g g <down> <return> 
<down> <return> n n <up> <up> <up> <up> <down> C-SPC 
<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> 
<delete> y e s <return> q c y <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> <return> 
<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> <return> SPC <backspace> SPC SPC <up> 
<up> <return> <down> <down> <return> <up> <up> <return> 
<f6> <down> C-SPC <down> <down> <down> <down> <down> 
<down> <down> <down> <down> <down> <down> <down> <down> 
<down> <down> <down> <down> <down> <down> <down> <down> 
<up> <up> M-w M-x r e p o r t <tab> b u <tab> <ret
urn>

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Auto-saving...done
Mark set

-- 
Sébastien Vauban