cp437

cp437

[Alex Schroeder]

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In GNU Emacs 21.2.1 (i386-msvc-nt5.1.2600)
 of 2002-03-19 on buffy
configured using `configure --with-msvc (12.00)'
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: DES
  locale-coding-system: iso-latin-1
  default-enable-multibyte-characters: t

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




Recent input:
<mouse-movement> <mouse-movement> <mouse-movement> 
<mouse-movement> <drag-mouse-1> C-x b <return> <return> 
<return> <up> C-y C-x b <return> <down-mouse-1> <mouse-movement> 
<mouse-movement> <mouse-movement> <mouse-movement> 
<mouse-movement> <mouse-movement> <mouse-movement> 
<mouse-movement> <drag-mouse-1> <down-mouse-1> <mouse-1> 
C-x b <return> <up> C-y C-x C-s C-g <down-mouse-1> 
<mouse-movement> <drag-mouse-1> <up> <down> <down> 
<down> <down> C-x C-f C-g C-c s c d <return> l s <return> 
t e s t . b a t <return> <help-echo> <down-mouse-1> 
<mouse-1> <help-echo> <help-echo> <help-echo> <down-mouse-1> 
<mouse-movement> <mouse-1> C-x C-b <down> <down> <down> 
C-x m C-g <f12> <escape> x r e p o r t - e m a c s 
- b u g <return>

Recent messages:
Mark set
insert: Format specifier doesn't match argument type
Type C-x 1 to remove help window.  C-v to scroll the help.
Mark set [3 times]
basic-save-buffer: Quit
Quit
Updating buffer list...done
Commands: m, u, t, RET, g, k, S, D, Q; q to quit; h for help
keyboard-quit: Quit
Loading emacsbug...done

I am using the following defun on Microsoft Windows XP to get the
title of the file Winamp is currently playing.  I found by trial and
error that cp437 works for me.  :)

(defun winamp ()
  "Print what winamp is playing."
  (interactive)
  (let* ((coding-system-for-read 'cp437)
	 (str (shell-command-to-string "c:/WINDOWS/system32/tasklist.exe /v")))
    (when (string-match "^studio.exe.*?[0-9]+\\. \\(.*?\\)[ \t]*\\((playing)\\)?[ \t]*$" str)
      (match-string 1 str))))

When playing the Icelanding piece "Hún Jörð" however, this is decoded
as "Hún JörÐ".  Perhaps there is a tiny bug in cp437?

Alex.

Re: cp437

[David Kastrup]

Alex Schroeder <a.schroeder@bsiag.com> writes:

> I am using the following defun on Microsoft Windows XP to get the
> title of the file Winamp is currently playing.  I found by trial and
> error that cp437 works for me.  :)
> 
> (defun winamp ()
>   "Print what winamp is playing."
>   (interactive)
>   (let* ((coding-system-for-read 'cp437)
> 	 (str (shell-command-to-string "c:/WINDOWS/system32/tasklist.exe /v")))
>     (when (string-match "^studio.exe.*?[0-9]+\\. \\(.*?\\)[ \t]*\\((playing)\\)?[ \t]*$" str)
>       (match-string 1 str))))
> 
> When playing the Icelanding piece "Hún Jörð" however, this is decoded
> as "Hún JörÐ".  Perhaps there is a tiny bug in cp437?

THe code page 437 does not contain either ð or Ð AFAICS.  So whatever
happens here seems to be somthing quite different.

-- 
David Kastrup, Kriemhildstr. 15, 44793 Bochum