How could I write a function with a definition something like...
readBinaryFile :: Filename -> IO Data.ByteString
I've got the functional parts of Haskell down, but the type system and monads still make my head hurt. Can someone write and explain how that function works to me?
import Data.ByteString.Lazy
readFile fp
easy as pie man. Knock off the lazy if you don't want the string to be lazy.
import Data.ByteString.Lazy as BS
import Data.Word
import Data.Bits
fileToWordList :: String -> IO [Word8]
fileToWordList fp = do
contents <- BS.readFile fp
return $ unpack contents
readBinaryFile :: Filename -> IO Data.ByteString
This is simply the Data.ByteString.readFile function, which you should never have to write, since it is in the bytestring package.
