cstrato wrote: > 1. I did read the help file. > 2. I have my own workaround, using e.g. > file.info("/my/path/")[,"isdir"] > 3. This was a suggestion. > 4. If you agree with me that "/my/path/" is a path, then both > "dirname()" and "dirname" give an incorrect answer. > 5. Maybe, you can give me a logical reason (besides a > historical reason) why this should be the way it is.
Can you just read "man 3 dirname" and "man 1 dirname" on any unix box? Isn't "historical reason" - this is how dirname works for the last 25(?) years, some people will be *very* upset if it behaves differently now - a good enough reason? HTL > Prof Brian Ripley wrote: >> These functions work as they should: did you not read the help page >> which explicitly tells you what happens in this case? >> >> The Unix originals work in the same way: >> >> gannet% dirname /my/path/ >> /my >> >> Please DO study the R posting guide and do the homework requesting of >> you before posting. >> >> On Mon, 26 Mar 2007, cstrato wrote: >> >>> Dear all, >>> >>> I have already twice encountered a case which I consider a limitation of >>> dirname() and basename(). >>> >>> In my functions I have a parameter "outfile" which e.g. tells where a >>> file >>> should be stored. Usually "outfile" is of the form: >>> oufile = "/my/path/myname.txt" >>> >>>> outfile <- "/my/path/myname.txt" >>>> dirname(outfile) >>> [1] "/my/path" >>>> basename(outfile) >>> [1] "myname.txt" >>> >>> However, in addition I want to be able to define the path only, while >>> creating the name "myname.txt" automatically. >>> Sorrowly, I get the following: >>> >>>> outfile <- "/my/path/" >>>> dirname(outfile) >>> [1] "/my" >>>> basename(outfile) >>> [1] "path" >>> >>> It would be great if dirname() and basename() could recognize: >>> dirname("/my/path/") = /my/path/ >>> basename(""/my/path/") = "" >>> i.e. they should be able to recognize a trailing "/". >> Not according to the documentation. >> >>> Best regards >>> Christian >>> _._._._._._._._._._._._._._._._ >>> C.h.i.s.t.i.a.n S.t.r.a.t.o.w.a >>> V.i.e.n.n.a A.u.s.t.r.i.a >>> _._._._._._._._._._._._._._._._ > > ______________________________________________ > R-devel@r-project.org mailing list > https://stat.ethz.ch/mailman/listinfo/r-devel ______________________________________________ R-devel@r-project.org mailing list https://stat.ethz.ch/mailman/listinfo/r-devel