Re: dired-do-find-regexp failure with latin-1 encoding

[Dmitry Gutov]

On 29.11.2020 19:25, Eli Zaretskii wrote:
> > Cc: stephen.berman@gmx.net, emacs-devel@gnu.org
> > From: Dmitry Gutov <dgutov@yandex.ru>
> > Date: Sun, 29 Nov 2020 19:19:43 +0200
> >
> > > Is that � what Grep actually produced?
> >
> > That's copied from a terminal emulator.
> >
> > If I run it with shell-command, I get this:
> >
> > premi\350re is first
> > premie?re is slightly different
> >
> > (\350 being a raw char)
>
> Then I think injecting LC_ALL=C into the environment when running Grep
> in this case makes the results more useful?  And we can then avoid
> using -a?

I'm not so sure. LC_ALL=C seems more problematic than -a:

$ grep ф test.txt
фыва
$ grep -a ф test.txt
фыва
$ LC_ALL=C grep ф test.txt
(nothing)

Curiously,

  LC_ALL=C grep première latin1.txt

works just fine with my terminal emulator, but that probably because it 
decodes the multibyte search string under the covers before using it as 
argument. It doesn't work in Emacs without 'C-x RET c'.