This reminds me of a library I have been wanting for a while: functions for manipulating filenames in a portable way. The main requirement is that you should be able to manipulate a filepath as though it was structured something like so:
(Maybe [Directory], Maybe Filename, Maybe Suffix)
(I think you mean Filename, not Maybe Filename)
For example, on a Unix system, /usr/lib/libcurl.so would be treated something like this:
(Just ["/","usr","lib"], "libcurl", Just "so")
The "/" would be a wart... it would be better to have an "origin" component, which could be either Absolute or Relative. (Origin, Maybe [Directory], Filename, Maybe Suffix) Something else that should be handled is scp-style remote paths: Maybe Machine, as in "astrocyte:/tmp/myfile.txt": (Just "astrocyte", Absolute, Just "tmp", "myfile", Just "txt") --KW 8-)