[Haskell-cafe] can't find in hayoo

Antoine Latter aslatter at gmail.com
Wed Sep 29 12:11:01 EDT 2010


On Wed, Sep 29, 2010 at 11:03 AM, Roderick Ford <developer at live.com> wrote:
> I need the trick to get from
> ByteString -> [GHC.Word.Word8]
> and Hayoo is not helping.
>
> Super simple I expected.  I haven't even tried to compile it yet.
> I am just trying to read in the bytes and encode with base64:
>
> import Codec.Binary.Base64
> import Data.ByteString
> import System.Directory
> import System.Environment
> main :: do
>         args <- getArgs
>         bFileExist <- System.Directory.doesFileExist (args !! 0)
>         let bytedata = --ByteString -> [GHC.Word.Word8]
>         if bFileExist then putStrLn $ Codec.Binary.Base64.encode bytedata
>         else putStrlLn ("File does not exist: " ++ (args !! 0))
>         return ()
>

Does 'unpack' do what you want?

Antoine


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