System.FilePath propsal (Was: Cabal feedback notes)

[Krasimir Angelov]

Here is the third version. 
   
   - FilePath is added to export list

   - The pathParents is modified and now it returns
the root directory (see the examples in comments). You
can easily get the previous behaviour:

oldPathParents = tail . pathParents

   - The getPathRoot function is removed. It can be
easily emulated with pathParents:

getPathRoot path = 
  case pathParents path of
    (".":path)  -> Nothing
    (root:path) -> Just root

I can't see any reason to keep this function.

Cheers,
  Krasimir


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