[Haskell-cafe] unexpected behavior from filterM doesFileExist = getDirectoryContents
Can somebody explain this? getDirectoryContents inD [..,#sanity.txt#,.,sanity.txt,etc.txt,patchTagDir.txt,jail.txt,notjail.txt,alldata.txt,allobjs.txt,namesNSizes.txt] filterM doesFileExist = getDirectoryContents inD [sanity.txt] ___ Haskell-Cafe mailing list Haskell-Cafe@haskell.org http://www.haskell.org/mailman/listinfo/haskell-cafe
Re: [Haskell-cafe] unexpected behavior from filterM doesFileExist = getDirectoryContents
On Jan 10, 2010, at 00:24 , Thomas Hartman wrote: Can somebody explain this? getDirectoryContents inD [..,#sanity .txt #,.,sanity .txt ,etc .txt ,patchTagDir .txt ,jail .txt,notjail.txt,alldata.txt,allobjs.txt,namesNSizes.txt] filterM doesFileExist = getDirectoryContents inD [sanity.txt] My first guess is that inD isn't .; getDirectoryContents doesn't fully qualify the names it returns, so doesFileExist looks in the current directory for the bare names returned. -- brandon s. allbery [solaris,freebsd,perl,pugs,haskell] allb...@kf8nh.com system administrator [openafs,heimdal,too many hats] allb...@ece.cmu.edu electrical and computer engineering, carnegie mellon universityKF8NH PGP.sig Description: This is a digitally signed message part ___ Haskell-Cafe mailing list Haskell-Cafe@haskell.org http://www.haskell.org/mailman/listinfo/haskell-cafe
Re: [Haskell-cafe] unexpected behavior from filterM doesFileExist = getDirectoryContents
Thanks, that was it. Dud question. 2010/1/9 Brandon S. Allbery KF8NH allb...@ece.cmu.edu: On Jan 10, 2010, at 00:24 , Thomas Hartman wrote: Can somebody explain this? getDirectoryContents inD [..,#sanity .txt #,.,sanity .txt ,etc .txt ,patchTagDir .txt ,jail .txt,notjail.txt,alldata.txt,allobjs.txt,namesNSizes.txt] filterM doesFileExist = getDirectoryContents inD [sanity.txt] My first guess is that inD isn't .; getDirectoryContents doesn't fully qualify the names it returns, so doesFileExist looks in the current directory for the bare names returned. -- brandon s. allbery [solaris,freebsd,perl,pugs,haskell] allb...@kf8nh.com system administrator [openafs,heimdal,too many hats] allb...@ece.cmu.edu electrical and computer engineering, carnegie mellon university KF8NH ___ Haskell-Cafe mailing list Haskell-Cafe@haskell.org http://www.haskell.org/mailman/listinfo/haskell-cafe
