Use one of the Char8 modules, depending on whether you want a strict or lazy bytestring:
----------------------------------------------------------------------- import qualified Data.ByteString.Lazy.Char8 as BS message :: BS.ByteString message = BS.pack "SOME STRING" ----------------------------------------------------------------------- See the docs at: http://hackage.haskell.org/packages/archive/bytestring/0.9.1.7/doc/html/Data-ByteString-Char8.html http://hackage.haskell.org/packages/archive/bytestring/0.9.1.7/doc/html/Data-ByteString-Lazy-Char8.html mapping over putWord8 is much slower than putting a single bytestring; if you want to put a string, pack it first: ----------------------------------------------------------------------- putString :: String -> Put putString str = putLazyByteString (BS.pack str) -- alternative: probably faster import qualified Data.ByteString.Char8 as B putString :: String -> Put putString str = putByteString (B.pack str) ----------------------------------------------------------------------- On Sat, Nov 6, 2010 at 05:30, C K Kashyap <ckkash...@gmail.com> wrote: > Hi, > I was trying to put a String in a ByteString > > import qualified Data.ByteString.Lazy as BS > message :: BS.ByteString > message = runPut $ do > let string="SOME STRING" > map (putWord8.fromIntegral.ord) > string -- this ofcourse generates [Put] > > How can I convert the list of Put's such that it could be used in the Put > monad? > > For now I used the workaround of first converting the string to > ByteString like this - > > stringToByteString :: String -> BS.ByteString > stringToByteString str = BS.pack (map (fromIntegral.ord) str) > > and then using putLazyByteString inside the Put monad. > > -- > Regards, > Kashyap > _______________________________________________ > Haskell-Cafe mailing list > Haskell-Cafe@haskell.org > http://www.haskell.org/mailman/listinfo/haskell-cafe > _______________________________________________ Haskell-Cafe mailing list Haskell-Cafe@haskell.org http://www.haskell.org/mailman/listinfo/haskell-cafe
