Coding system of file not recognised correctly

[Peter Dyballa]

Hello!

I have a UTF-8 test file, which comes from the Kermit distribution's  
utf8.txt. Its name is utf8_txt and it starts with this line to force  
it into UTF-8:

        ;;; -*- mode: Text; coding: utf-8; -*-

diff (GNU diffutils) 2.8.1 tells me that the only difference between  
the original file and my private version is:

        0a1
        > ;;; -*- mode: Text; coding: utf-8; -*-

When I launch /usr/local/bin/emacs-22.0.50 -Q it opens utf8.txt (when  
second file) with a mode-line starting with -u, but utf8_txt gets -E  
upon opening it first. The next file, when it has UTF-8 contents, is  
opened with -u in mode-line – and when I open utf8_txt now, it at  
once gets a -u too!

I can understand that the non-marked utf8.txt gets -E in mode-line  
when opened for the first time as first file, errare Emacsem est, too  
(which does indeed happen), but it's hard to accept that the  
mentioned header line leads to using some Japanese coding system!

When the first file I open is some ISO Latin or Mac-Roman or NeXT  
or ... encoding, then the first UTF-8 file I open, no matter whether  
it has the header line mentioned above or not, has -E in mode-line.


In GNU Emacs 22.0.50.1 (powerpc-apple-darwin8.8.0, X toolkit, Xaw3d  
scroll bars)
of 2006-10-02 on Latsche
X server distributor `The XFree86 Project, Inc', version 11.0.40400000
configured using `configure '--without-ns' '--without-carbon' '--with- 
x' '--without-sound' '--without-pop' '--with-xpm' '--with-jpeg' '-- 
with-tiff' '--with-gif' '--with-png' '--enable-locallisppath=/Library/ 
Application Support/Emacs/calendar22:/Library/Application Support/ 
Emacs/preview:/Library/Application Support/Emacs/auctex/images:/ 
Library/Application Support/Emacs/auctex:/Library/Application Support/ 
Emacs' 'CFLAGS=-pipe -fPIC -fast -mcpu=7450 -mtune=7450 -ftree- 
vectorize -mpim-altivec -foptimize-register-move -freorder-blocks - 
freorder-blocks-and-partition -fthread-jumps -fpeephole -fno- 
crossjumping' 'CPPFLAGS=-no-cpp-precomp -I/usr/include/openssl -I/usr/ 
local/include -I/sw/include/libpng12 -I/sw/include' 'LDFLAGS=- 
dead_strip -L/usr/X11R6/lib -L/usr/local/lib -L/sw/lib/ncurses -L/sw/ 
lib''

Important settings:
  value of $LC_ALL: nil
  value of $LC_COLLATE: nil
  value of $LC_CTYPE: de_DE.UTF-8
  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
  locale-coding-system: utf-8
  default-enable-multibyte-characters: t

Major mode: Text

Minor modes in effect:
  shell-dirtrack-mode: t
  show-paren-mode: t
  display-time-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
  unify-8859-on-encoding-mode: t
  utf-translate-cjk-mode: t
  auto-compression-mode: t
  line-number-mode: t
  transient-mark-mode: t
  view-mode: t


--
Greetings

  Pete

The human animal differs from the lesser primates in his passion for  
lists of "Ten Best".
                                     -- H. Allen Smith