bug#6546: win32 grep/shell utf-8 encoding

["Laimonas Vėbra" <laimonas.vebra@gmail.com>]

Juanma Barranquero wrote:

> --------------------------------
> Cyrillic follows:
> ЁШејҘҘ
> --------------------------------
>
> M-x grep<RET>  ШејҘ 6546.txt<RET>
>
> =>
>
> -*- mode: grep; default-directory: "c:/emacs/repo/" -*-
> Grep started at Thu Jul 22 14:46:58
>
> grep -nH -e ШејҘ 6546.txt
> 6546.txt:2:ЁШејҘҘ
>
> Grep finished (matches found) at Thu Jul 22 14:46:58
>
>
> so I cannot reproduce it. Could you please send a step-by-step recipe,
> starting from emacs -Q?

That means you are using gnu-win32 grep. Some older (2.5.4) and newer 
(2.6.3) cygwin greps won't work.

I don't believe cygwin grep (and other app) is going to be fixed/coded 
like (gnu-win32 app), because it's a matter how arguments are passed 
through winapi->cygwin (whole system) layers.

Besides, older (2.5.x) greps doesn't correctly color (multibyte) matches 
(try grep -nH -e 'Ш*' 6546.txt)