[Haskell-cafe] Attoparsec.ByteString.Char8 or Attoparsec.ByteString for diff output?

Dear Listers, I am developing a program to parse dif output taken from stdin (as in diff file1 file2 | myApp) or from a file. I am reading the input as ByteString in either case and I am parsing it Attoparsec. My question is, Should I use Data.Attoparsec.ByteString.Char8 or Data.Attoparsec.ByteString? So far, I've been using Data.Attoparsec.ByteString.Char8 and it works for my sample files, which are in utf8 or, latin1, or the default Windows encoding. What do you suggest? Note: I sent this question previously to the beginners list, but someone suggested to me privately to send it to this list. Regards, Pedro Borges