bug#870: Repeatable instance of bug#870

[Kenichi Handa <handa@m17n.org>]

In article <4964CB64.2090506@gmx.at>, martin rudalics <rudalics@gmx.at> writes:

> Thanks for taking care of this.  Your fix solves the problem for me
> though I'm not sure whether it fixes the issue raised by Peter:

> That patch fixes the bug I reported, but it creates a new one: if you
> change the EOL convention outside of emacs, revert-buffer no longer
> detects this. To reproduce:
> printf "hello\r\nworld\r\n" > hello
> emacs -Q hello &
> printf "hello\rworld\r" > hello
> M-x revert-buffer
> # emacs still sees DOS newlines

As I can't reproduce the above problem, I think the bug is fixed.

> In particular, when I visit a file, (1) save it with a different line
> ending, (2) change the line ending outside this instance of Emacs, and
> (3) revert the buffer, its line ending is the one saved in (1) and not
> the one from (2).  But IIUC Emacs 22 didn't handle this either.

By (1), the variable buffer-file-coding-system-explicit is
set to XXX, and, in such a case, revert-buffer binds
coding-system-for-read to XXX to respect your decision made
by (1).

I'm not sure this behavior is a bug.

---
Kenichi Handa
handa@m17n.org