content: {- Copyright 2020 The Project Oak Authors
  
     Licensed under the Apache License, Version 2.0 (the "License");
     you may not use this file except in compliance with the License.
     You may obtain a copy of the License at
  
         http://www.apache.org/licenses/LICENSE-2.0
  
     Unless required by applicable law or agreed to in writing, software
     distributed under the License is distributed on an "AS IS" BASIS,
     WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
     See the License for the specific language governing permissions and
     limitations under the License.
  -}
  
  module Main
  where
  
  fixup :: String -> String
  fixup content
    = unlines updatedLines
      where
      contentLines = lines content
      updatedLines = take 3 contentLines ++
                     extraImports ++
                     drop 3 contentLines
      extraImports = ["import qualified Data.Bits",
                      "import qualified Data.Char"]
  
  main :: IO ()
  main
    = do asciiContent <- readFile "Ascii.hs"
         writeFile "Ascii2.hs" (fixup asciiContent)
         bytevectorContent <- readFile "ByteVector.hs"
         writeFile "ByteVector2.hs" (fixup bytevectorContent)
  