Re: [Bugs-r-devel] Some Progress

[Uwe L. <li...@st...>]

Rodney Sparapani wrote:
> Hi Guys:
> 
> Unfortunately, the patch did not fix the problem.  But, maybe it helped
> since now I'm getting an error message that I didn't have before:
> 
> fixme:shell:StrRetToStrNW unknown type!
> 
> Looking at the Wine sources, this function is on line 83 of 
> dlls/shell32/shellstring.c
> 
> This is one of the undocumented functions so I'm not clear
> and exactly it's purpose.  Based on the type of src, do something?
> However, the type of src is not one of the 3 types handled and 
> nothing is returned!  
> 
> Looking at the value of tempdir() gave me an idea why that might be:
> 
>> tempdir()
> [1] "/var/folders/z4/z4O5IqhPED0pjZUVP7s0mE+++TI/-Tmp-//RtmphdzhHo"
> 
> There appears to be an R bug here.  Two slashes in a row is not
> what is wanted. 


No, but we do not know any OS where it matters (not even Windows) ;-).
Hence again also a bug in wine.

> Of course, on Unix, this makes no difference since
> the extra slash is ignored.   But, we are not dealing with Unix, we
> are dealing with Wine's implementation of the Windows API.  So, after
> setting working.directory=tempdir() can we substitute single slashes
> for double slashes in working.directory
 >
> so that we get the following instead:
> 
> "/var/folders/z4/z4O5IqhPED0pjZUVP7s0mE+++TI/-Tmp-/RtmphdzhHo"


You are looking for gsub(). I have committed the workaround:
   working.directory <- gsub("//", "/", working.directory)

Uwe



> I spent some time looking through my S manual trying to find the
> function to do this, but I couldn't figure it out.  Do S and R
> support AWK functions since they were both invented at Bell Labs
> (if memory serves)?
>