
Hey, Say I have a stream of Data.Text.Text objects flowing through a conduit, where the divisions between successive Data.Text.Text items occur at arbitrary boundaries (maybe the source is sourceFile $= decode utf8). I'd like to create a Sink that returns a tuple of (the first line, the rest of the input). My first attempt at this looks like this: sink = do out1 <- CT.lines C.=$ CL.head out2 <- CL.consume return (out1, T.concat out2) However, the following input provides: runIdentity $ CL.sourceList ["abc\nde", "f\nghi"] C.$$ sink (Just "abc","f\nghi") But what I really want is (Just "abc", "\ndef\nghi") I think this is due to the auto-termination you mention in [1]. My guess is that when CT.lines yields the first value, (CL.head then also yields it,) and execution is auto-terminated before CT.lines gets a chance to specify any leftovers. How can I write this sink? (I know I can just use CL.consume and T.break (== '\n'), but I'm not interested in that. I'm trying to figure out how to get the behavior I'm looking for with conduits.) Thanks, Myles [1] http://hackage.haskell.org/packages/archive/conduit/0.5.2.7/doc/html/Data-Co...