On Mon, 14 May 2007, Ernest Turro wrote:
> tempdir() on windows returns the path using "\\" as file
separator.
Yes, it is explicitly documented to.
> But .Platform$file.sep returns "/". As a result, you get
> inconsistencies like:
>
> > file.path(tempdir(), "foo")
>
> [1] "C:\\WINDOWS\\Temp\\RtmpYEIXrb/foo" # Mix of \\ and /
>
> I'm not sure if this can cause problems but I thought I'd let you
> know just in case.
It doesn't cause problems AFAIK. The main place you need \ is when
passing filepaths to a Windows shell, a few Windows executables and a very
few API functions (where we convert in the wrappers). OTOH, / is needed
when passing to a Unix-like shell, make ....
Note that e.g. shell() on Windows has an argument to translate / to \ if
necessary.
There is a problem with network shares like \\machine\path\to\file. Those
are essentially incompatible with POSIX and a lot of the tools we use for
R, but I've started to make them work as far as is practicable.
--
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