Jens,
On Sep 18, 2009, at 15:08 , Jens Oehlschlägel wrote:
Mmh,
Point is, I gather, that trailing slashes are removed, e.g.,
viggo:~/>basename foo/
foo
So, not a bug.
This unfortunately means that we cannot distinguish between
1) a path with a filename
2) a path without a filename
Of course you can - but that's unrelated to the bug report.
For example in the next version of the ff-package we allow a user to
specify a 'pattern' for all files of a ff dataframe which is path
together with a fileprefix, the above means we cannot specify an
empty prefix "" for the current working directory, because
dirname("./.")
[1] "."
basename("./.")
[1] "."
dirname("./")
[1] "."
basename("./")
[1] "."
I don't see the connection - I would suggest you read the IEEE Std
1003.1-2001 which defines the behavior of basename (and the R
documentation for basename clearly states the behavior as well). The
fact that you are trying to use the wrong tool for your purpose
doesn't mean that the tool is broken. I would advise you to ask on R-
help how to implement your pattern specification (just FWIW it's non-
standard and requirement of trailing slashes does lead to very nasty
problems for the user).
Cheers,
Simon
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