+#ifdef __GLASGOW_HASKELL__
+foreign import ccall unsafe "__hscore_long_path_size"
+ long_path_size :: Int
+#else
+long_path_size :: Int
+long_path_size = 2048 -- // guess?
+#endif /* __GLASGOW_HASKELL__ */
+
+{- | Returns the current user's home directory.
+
+The directory returned is expected to be writable by the current user,
+but note that it isn't generally considered good practice to store
+application-specific data here; use 'getAppUserDataDirectory'
+instead.
+
+On Unix, 'getHomeDirectory' returns the value of the @HOME@
+environment variable. On Windows, the system is queried for a
+suitable path; a typical path might be
+@C:/Documents And Settings/user@.
+
+The operation may fail with:
+
+* 'UnsupportedOperation'
+The operating system has no notion of home directory.
+
+* 'isDoesNotExistError'
+The home directory for the current user does not exist, or
+cannot be found.
+-}
+getHomeDirectory :: IO FilePath
+getHomeDirectory =
+ modifyIOError ((`ioeSetLocation` "getHomeDirectory")) $ do
+#if defined(mingw32_HOST_OS)
+ r <- try $ Win32.sHGetFolderPath nullPtr Win32.cSIDL_PROFILE nullPtr 0
+ case (r :: Either IOException String) of
+ Right s -> return s
+ Left _ -> do
+ r1 <- try $ Win32.sHGetFolderPath nullPtr Win32.cSIDL_WINDOWS nullPtr 0
+ case r1 of
+ Right s -> return s
+ Left e -> ioError (e :: IOException)
+#else
+ getEnv "HOME"
+#endif
+
+{- | Returns the pathname of a directory in which application-specific
+data for the current user can be stored. The result of
+'getAppUserDataDirectory' for a given application is specific to
+the current user.
+
+The argument should be the name of the application, which will be used
+to construct the pathname (so avoid using unusual characters that
+might result in an invalid pathname).
+
+Note: the directory may not actually exist, and may need to be created
+first. It is expected that the parent directory exists and is
+writable.
+
+On Unix, this function returns @$HOME\/.appName@. On Windows, a
+typical path might be
+
+> C:/Documents And Settings/user/Application Data/appName
+
+The operation may fail with:
+
+* 'UnsupportedOperation'
+The operating system has no notion of application-specific data directory.
+
+* 'isDoesNotExistError'
+The home directory for the current user does not exist, or
+cannot be found.
+-}
+getAppUserDataDirectory :: String -> IO FilePath
+getAppUserDataDirectory appName = do
+ modifyIOError ((`ioeSetLocation` "getAppUserDataDirectory")) $ do
+#if defined(mingw32_HOST_OS)
+ s <- Win32.sHGetFolderPath nullPtr Win32.cSIDL_APPDATA nullPtr 0
+ return (s++'\\':appName)
+#else
+ path <- getEnv "HOME"
+ return (path++'/':'.':appName)
+#endif
+
+{- | Returns the current user's document directory.
+
+The directory returned is expected to be writable by the current user,
+but note that it isn't generally considered good practice to store
+application-specific data here; use 'getAppUserDataDirectory'
+instead.
+
+On Unix, 'getUserDocumentsDirectory' returns the value of the @HOME@
+environment variable. On Windows, the system is queried for a
+suitable path; a typical path might be
+@C:\/Documents and Settings\/user\/My Documents@.