strlen in Hutton 2ed 10.5 Derived primitives White Spaced run on Windows 7 Haskell Platform 8.2.2 strlen :: IO () GHCi, version 8.2.2: http://www.haskell.org/ghc/ :? for help strlen = do putStr "Enter a string: " [1 of 1] Compiling Main ( C:\strlen.WhiteSpaced.hs, interpreted ) xs <- getLine putStr "The string has " C:\strlen.WhiteSpaced.hs:2:14: error: putStr (show (length xs)) Parse error in pattern: putStr putStr " characters" Possibly caused by a missing 'do'? | 2 | strlen = do putStr "Enter a string: " | ^^^^^^^^^^^^^^^^^^^^^^^^^^^... Failed, no modules loaded. Prelude> Bracesed strlen :: IO GHCi, version 8.2.2: http://www.haskell.org/ghc/ :? for help strlen = do {putStr "Enter a string: "; [1 of 1] Compiling Main ( C:\strlen.Bracesed.hs, interpreted ) xs <- getLine; Ok, one module loaded. putStr "The string has "; *Main> putStr (show (length xs)); putStr " characters"} -- Sent from: http://haskell.1045720.n5.nabble.com/Haskell-Haskell-Cafe-f3074699.html