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bug#3229: 23.0.93; ediff-directories isn't buffer coding system independ

From: Andrew Hyatt
Subject: bug#3229: 23.0.93; ediff-directories isn't buffer coding system independent
Date: Wed, 15 Jun 2016 23:54:07 -0400
User-agent: Gnus/5.13 (Gnus v5.13) Emacs/24.5 (darwin)

"Drew Adams" <address@hidden> writes:

>> > I have two files with the same name (extracted from two svn
>> > repositories) one of which has a coding system of undecided-dos, the
>> > other is undecided-unix.
>> > WHen I perform an ediff-buffers between the two files loaded into
>> > emacs I get - correctly - zero reported differences. 
>> > However if I look at the differences using ediff-directories I
>> > get a single difference region consisting of the whole file.
>> Presumably you'll get the same "one big hunk diff" if you use
>> ediff-files.  Both ediff-files and ediff-directories work (as the name
>> implies) on files (and directories), not on buffers.  While the two
>> buffers show similar (or even identical) contents, the corresponding
>> files are different (contain different byte sequences because of the
>> different coding-system).
> Caveat: I haven't followed this thread, but this sounds similar to bug #1183.
> I believe that the #1183 thread ended with Eli asking Michael Kifer to have
> Ediff let you know that the two have the same (or similar) content but 
> different
> coding systems and hence different byte sequences.
> Perhaps that never got fixed/finished?

It sounds to me that this is more of a feature request than a bug at
this point. If anyone disagrees, let me know, otherwise I'll reclassify
this in a few weeks.

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