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bug#18236: diff-apply-hunk interacts poorly with line endings


From: Marcin Borkowski
Subject: bug#18236: diff-apply-hunk interacts poorly with line endings
Date: Wed, 17 Feb 2016 16:35:04 +0100
User-agent: Gnus/5.13 (Gnus v5.13) Emacs/25.1.50 (gnu/linux)

On 2014-08-10, at 17:34, Reuben Thomas <address@hidden> wrote:

> I'm using Emacs 24.3. Consider the following two files:
>
> foo:
> ----cut here----
> This is a small test file.
> It has DOS line endings.
> ----cut here----
>
> bar:
> ----cut here----
> This is a small test file. 
> It too has DOS line endings. 
> ----cut here----
>
> Save them with DOS line endings, and
>
> diff foo bar > foo.patch
> cp foo bar
>
> Visit foo.patch. When I do that, each line ends in ^M.
>
> Now, in the patch buffer, M-x diff-apply-hunk. Note that the ^Ms have been 
> added to the lines. Writing the buffer and examination with "hd" reveals that 
> each line now ends
> \r\r\n.
>
> It seems what's happened here is that diff-mode doesn't try to diagnose the 
> character encoding of the patch file.

Hi all,

confirmed on GNU Emacs 25.1.50.2 (commit 4ccd268).

Best,

--
Marcin Borkowski





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