Re: Codepages and shell function on w32

["Lennart Borgman (gmail)" <lennart.borgman@gmail.com>]

Eli Zaretskii wrote:
>> Date: Mon, 01 Jan 2007 06:08:08 +0000
>> From: Jason Rumney <jasonr@gnu.org>
>> Cc: Eli Zaretskii <eliz@gnu.org>, emacs-devel@gnu.org
>>
>> There is no absolute "correct", as a user may run any programs from the 
>> command-line, not just native Windows console programs, and their input 
>> files could be in any encoding.
>>     
>
> But the same problem exists on Unix, doesn't it?  On a GNU/Linux
> system I'm typing this, default-process-coding-system is set to
> `(undecided . iso-latin-1)'.  How about if we follow the same logic,
> with the exception that we want to force EOL conversions to specific
> values as w32-fns.el does now?  That is, use undecided-dos for input
> and CP-unix for output, where CP is whatever
> w32-get-console-output-codepage returns.
>   

Oh, it is a bit easy to mix in and out here. This is what I use for 
testing now:

      (shell-mode)
      (when (eq system-type 'windows-nt)
        (let* ((shell-file-name prog)
               (proc (get-buffer-process (current-buffer)))
               (fullprog (executable-find prog))
               (cp-out (read (format "cp%s" 
(w32-get-console-output-codepage))))
               (cp-out-dos (coding-system-change-eol-conversion cp-out 
'dos))
               (cp-out-unix (coding-system-change-eol-conversion cp-out 
'unix))
               (cp-in  (read (format "cp%s" (w32-get-console-codepage))))
               (cp-in-dos (coding-system-change-eol-conversion cp-in 'dos))
               (cp-in-unix (coding-system-change-eol-conversion cp-in 
'unix)))
          (cond
           ((w32-shell-dos-semantics)
            (set-process-coding-system proc cp-out-dos cp-in-unix))
           ((string-match "/msys/" fullprog)
            (message "think it is MSYS...")
            (set-process-coding-system proc cp-out-dos 'undecided-unix))
           ((string-match "/cygwin/" fullprog)
            (message "think it is Cygwin...")
            (set-process-coding-system proc cp-out-dos 'undecided-unix))
           (t
            (message "unrecognized shell program: %s" fullprog))
           )))))
  buffer)

Is this what you meant Eli?

Nothing especially weird happens with this version. It works OK for 
cmdproxy. Cygwin and MSYS still can't handle Swedish characters. I guess 
there is nothing to do about that.