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Re: [PATCH] show difference when recovering file

From: Ivan Kanis
Subject: Re: [PATCH] show difference when recovering file
Date: Mon, 17 Dec 2012 11:53:12 +0100
User-agent: Gnus/5.13 (Gnus v5.13) Emacs/24.3.50 (gnu/linux)

Stefan Monnier <address@hidden> wrote:

>> This trivial patch offer to see the difference between the current file
>> and the backup file. This helps making the decision whether one wants to
>> recover the file.
>> +                      (diff file file-name)
> There's a problem here: the autosave file is saved using the internal
> coding-system (so it always succeeds, no matter what weird mix of
> characters happens to be currently in the buffer), where the
> non-autosave file will use the encoding which happens to be in use for
> this file.

Is it possible to open the non-autosave file in the internal format just
to run the diff? I guess not.

> So the diff may show lots of spurious changes.

I think it's a borderline case. It's more useful to see what the
difference is between the two files even though on rare occasion the
diff will show garbage
Ivan Kanis

I had an interest in death from an early age. It fascinated me. When I
heard 'Humpty Dumpty sat on a wall,' I thought, 'Did he fall or was
he pushed?'
    -- P.D. James

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