Hi, I have written a System.FilePath module in part based on the one in Yhc, and in part based on the one in Cabal (thanks to Lemmih). The aim is to try and get this module into the base package, as FilePath's are something many programs use, but its all too easy to hack up a little function that gets it right most of the time on most platforms, and there lies a source of bugs. This module is Posix (Linux) and Windows capable - just import System.FilePath and it will pick the right one. Of course, if you demand Windows paths on all OS's, then System.FilePath.Windows will give you that (same with Posix). Written in Haskell 98 + Heirarchical Modules. Haddock: http://www-users.cs.york.ac.uk/~ndm/projects/filepath/System-FilePath.html Darcs: darcs get http://www.cs.york.ac.uk/fp/darcs/filepath Source: http://www.cs.york.ac.uk/fp/darcs/filepath/System/FilePath.hs Homepage: http://www-users.cs.york.ac.uk/~ndm/projects/libraries.php Tests: http://www.cs.york.ac.uk/fp/darcs/filepath/Tests.hs If you go to the haddock page there are a few little examples at the top of the file. If anyone could make any comments on the interface, the semantics of the operations (look at the Tests file if you don't want to go prodding the code), missing features etc. that would be very handy. The interface is not yet stable as a warning to those who choose to use it (although I hope its close - that depends on your comments!) Thanks Neil PS. Thanks to Marc Webber for code contributions, shapr for suggestions and a few others.