[Rd] dos-style line endings in .Rbuildignore result in files not being excluded

[Prof Brian Ripley]

On Tue, 14 Oct 2008, Sebastian P. Luque wrote:

> On Mon, 13 Oct 2008 23:10:41 -0600,
> Tony Plate <tplate at acm.org> wrote:
>
>> I was trying, on a Linux system, to get a .Rbuildignore file to work.
>> After far too long, I found the problem was the <CR><NL> line endings
>> in the .Rbuildignore file -- I had originally created it on a Windows
>> system, and emacs in Ubuntu was politely hiding that fact from me.
>
> Are you sure? Whenever I open M$ files in Emacs under Debian I see
> '(DOS)' near the left end of the modeline, which indicates that it has
> ^C as EOL.  This has been the case since at least 21.0.

^M^J, I think you mean (CRLF).

Emacs is not totally consistent about how it does this: since it tries to 
guess the file encoding it will usually indicate (DOS) on the mode line, 
but not always (and it sometimes displays the ^M's, even on Windows).

But to the point: how often do people get DOS-style files on a Unix-alike? 
You have to work pretty hard to do this, and there comes a point at which 
complicating R to workaround wrongly encoded files is not worth the 
trouble.  Let's see if anyone else reports having done this.

-- 
Brian D. Ripley,                  ripley at stats.ox.ac.uk
Professor of Applied Statistics,  http://www.stats.ox.ac.uk/~ripley/
University of Oxford,             Tel:  +44 1865 272861 (self)
1 South Parks Road,                     +44 1865 272866 (PA)
Oxford OX1 3TG, UK                Fax:  +44 1865 272595