Gregory Crosswhite
People want to believe that Haskell is a better language than C, but how could this possibly be true when Haskell lacks the very basic "goto" feature??? If the world is going to take Haskell seriously, then this serious blight needs to be addressed immediately! Thus I proud to present to you the "GotoT-transformers" package which provides this missing functionality and so finally makes Haskell a serious contender with C.
Have you looked at ContT from monadLib? It's not just a goto, but in fact a setjmp/longjmp, i.e. a goto with value. I haven't used it for anything yet, but it might come in handy for some algorithms: import Data.List import MonadLib import Text.Printf myComp :: ContT (Maybe Int) IO (Maybe Int) myComp = do (i, beginning) <- labelCC 0 inBase $ printf "Current value: %i (type q to quit)\n" i query <- inBase getLine when ("q" `isPrefixOf` query) $ abort (Nothing :: Maybe Int) when (i < 10) $ jump (i+1) beginning return $ Just i main :: IO () main = runContT return myComp >>= printf "Final result: %s\n" . maybe "none" show Greets, Ertugrul -- nightmare = unsafePerformIO (getWrongWife >>= sex) http://ertes.de/