Problems with Cyrillic encoding

[Claus Tondering]

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In GNU Emacs 21.2.1 (i686-pc-linux-gnu, X toolkit, Xaw3d scroll bars)
 of 2002-08-29 on astest
configured using `configure  --host=i686-pc-linux-gnu --build=i686-pc-linux-gnu 
--target=i386-redhat-linux-gnu --program-prefix= --prefix=/usr 
--exec-prefix=/usr --bindir=/usr/bin --sbindir=/usr/sbin --sysconfdir=/etc 
--datadir=/usr/share --includedir=/usr/include --libdir=/usr/lib 
--libexecdir=/usr/libexec --localstatedir=/var --sharedstatedir=/usr/com 
--mandir=/usr/share/man --infodir=/usr/share/info --with-gcc --with-pop 
--with-sound'
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
  locale-coding-system: utf-8
  default-enable-multibyte-characters: t

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

I can type Russian (Cyrillic) letters in two ways:

* If I select a Russian keyboard and type Russian letters, they get
  into the Emacs buffer with character values in the range
  0x51450-0x5146f (for the lower case letters).

  Calling the the built-in Lisp function
  find-coding-systems-region-internal on these characters returns
  mule-utf-8 as a possible encoding.

* If I use a Latin keyboard and set the input method to
  cyrillic-jcuken, the Russian letters are inserted into the Emacs
  buffer as characts with values in the range 0xe50-0xe6f (for the
  lower case letters).

  Calling find-coding-systems-region-internal on these characters does
  *not* return mule-utf-8 as a possible encoding.

This has bad consequences when I try to use Russian characters in
email and Gnus, because UTF-8 is not chosen as a valid encoding in the
last case.

Best wishes,
---------------------------------------------------------------
Claus Tondering               E-mail: ct@filanet.dk
Senior Software Engineer
Filanet Europe ApS            Web: http://www.filanet.com

Address: Herlev Hovedgade 82c 1, DK-2730 Herlev, Denmark

Phone (direct): +45 44 50 37 81      Fax: +45 44 50 37 99
---------------------------------------------------------------



Recent input:
C-s C-s C-s C-s C-s C-s C-s C-s C-s C-s C-s C-s C-s 
C-s C-s C-s C-s M-x a p r o s p o s <return> <backspace> 
<backspace> <backspace> <backspace> <tab> <return> 
m u l e <return> <f6> <next> <next> <next> <down> <down> 
<down> <down> <down> <down> <next> <f6> <prior> <f10> 
<f6> <switch-frame> C-h b <f6> C-s g n u <C-home> C-s 
e m a c s - b u f <up> M-x a p r o <tab> <return> e 
m a c s . * b u g <return> M-x r e p o r t <tab> <
return>

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