Explicit characters in place of indentation
editExercises |
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Rewrite this snippet from the Control Structures chapter using explicit braces and semicolons: doGuessing num = do putStrLn "Enter your guess:" guess <- getLine case compare (read guess) num of LT -> do putStrLn "Too low!" doGuessing num GT -> do putStrLn "Too high!" doGuessing num EQ -> putStrLn "You Win!" |
There are of course many valid answers, given that you can indent the code and break the lines however you wish. Here is one of them:
doGuessing num = do { putStrLn "Enter your guess:"; guess <- getLine; case compare (read guess) num of { LT -> do { putStrLn "Too low!"; doGuessing num; }; GT -> do { putStrLn "Too high!"; doGuessing num; }; EQ -> putStrLn "You Win!"; }; };