-
-import Control.Arrow
-import Control.Arrow.ArrowList
-import Control.Arrow.ArrowTree
-import Control.Monad.Reader
-import Paths_Rakka -- Cabal が用意する。
-import Rakka.Environment
-import System.Directory
-import System.FilePath
-import Text.XML.HXT.Arrow.XmlArrow
-import Text.XML.HXT.Arrow.XmlIOStateArrow
-import Text.XML.HXT.DOM.TypeDefs
-import qualified Text.XML.HXT.RelaxNG.Schema as S
-import Text.XML.HXT.RelaxNG.Validator
-
-
-loadSchema :: FilePath -> IO (IOSArrow XmlTree XmlTree)
+import Control.Applicative
+import Control.Arrow.Unicode
+import Control.Monad.Trans
+import Control.Monad.Unicode
+import Paths_Rakka
+import System.Directory
+import System.FilePath
+import Text.XML.HXT.Arrow.XmlState
+import Text.XML.HXT.DOM.TypeDefs
+import Text.XML.HXT.RelaxNG
+
+loadSchema ∷ FilePath → IO (IOSArrow XmlTree XmlTree)