Re: Is it possible to use new Emacsen with non-ASCII?

[Ilya Zakharevich]

[A complimentary Cc of this posting was sent to
Eli Zaretskii 
<eliz@gnu.org>], who wrote in article 
<mailman.11687.1210939428.18990.help-gnu-emacs@gnu.org>:
> Sorry, I spoke too soon (I guess I underestimated how long ago I
> switched from Emacs 21.x to 22.x).  Here's the equivalent recipe for
> Emacs 21:
> 
>   emacs -q --no-site-file
>   M-x set-language-environment RET Cyrillic-KOI8 RET
>   C-x RET t Cyrillic-KOI8 RET
>   C-x RET k Cyrillic-KOI8 RET

I spoke too soon.  Typed literally, it works.  But the "equivalent"
programmatic code does not:

(let ((v (getenv "EMACS_LANGENV")))
  (and v (progn
           (set-language-environment v)
           (set-terminal-coding-system (intern v))
           (set-keyboard-coding-system (intern v))
           (set-input-mode (car (current-input-mode))
                           (nth 1 (current-input-mode))
                           '8bit)
           (run-with-idle-timer
            5 nil 'message              ; Once, after 5 sec of inactivity
            "Switch Cyr/Lat by Ctrl-\\, Cyr-Yawerty/Cyr-GOST by f9 \\"))))

I get

    Debugger entered--Lisp error: (coding-system-error Cyrillic-KOI8)
      set-terminal-coding-system-internal(Cyrillic-KOI8)
      set-terminal-coding-system(Cyrillic-KOI8)

What did I do wrong?

Thanks,
Ilya