[R] R2.1.0: Bug in list.files

[Steve Roberts]

Yes I missed the NEWS entry - or rather didn't realise its significance. 
So the "bug" was in the previous version and my old code which worked 
but shouldn't have.

Thanks for the replies - rapid and to the point as usual.

Steve.


Date sent:      	Thu, 12 May 2005 10:45:03 +0200
From:           	Uwe Ligges <ligges at statistik.uni-dortmund.de>
Organization:   	Fachbereich Statistik, Universitaet Dortmund
To:             	steve.roberts at manchester.ac.uk
Copies to:      	R-help at stat.math.ethz.ch
Subject:        	Re: [R] R2.1.0: Bug in list.files

> Steve Roberts wrote:
> 
> > R2.0.1 (MS Windows)
> > 
> > 
> >>list.files(myloc,"*.zip",full=T)
> > 
> > [1] "P:/SARsoftware/Rlibraries/gnlm_0.1.zip"
> > [2] "P:/SARsoftware/Rlibraries/lms2_0.2.zip"
> > 
> > 
> > R2.1.0:
> > 
> > 
> >>list.files(myloc,"*.zip",full=T)
> > 
> > Error in list.files(path, pattern, all.files, full.names, recursive)
> > : 
> >         invalid 'pattern' regular expression
>  >
> > Bug? or have I missed something
> 
> You missed to read the NEWS that tells you:
> 
>      o   The regular expression code is now based on that in glibc
>      2.3.3. It has stricter conformance to POSIX, so metachars such as
>      { } + * may need to be escaped where before they did not (but
>      could have been).
> 
> 
> Probably you want
> 
>   list.files(pattern = "\\.zip$", full.names = TRUE)
> 
> Uwe Ligges
> 
> 
> > Steve.
> >   Dr Steve Roberts 
> >   steve.roberts at manchester.ac.uk
> > 
> > Senior Lecturer in Medical Statistics,
> > CMMCH NHS Trust and University of Manchester Biostatistics Group,
> > 0161 275 5192/5764 / 0161 276 5785
> > 
> > ______________________________________________
> > R-help at stat.math.ethz.ch mailing list
> > https://stat.ethz.ch/mailman/listinfo/r-help
> > PLEASE do read the posting guide!
> > http://www.R-project.org/posting-guide.html
> 


  Dr Steve Roberts 
  steve.roberts at manchester.ac.uk

Senior Lecturer in Medical Statistics,
CMMCH NHS Trust and University of Manchester Biostatistics Group,
0161 275 5192/5764 / 0161 276 5785