Substring/Top and tail: Difference between revisions
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=={{header|Haskell}}== |
=={{header|Haskell}}== |
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<lang Haskell>-- We define the functions to return an empty string if the argument is too |
<lang Haskell>-- We define the functions to return an empty string if the argument is too |
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-- short for the particular operation. |
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remFirst, remLast, remBoth :: String -> String |
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remFirst "" = "" |
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remFirst cs = tail cs |
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remLast "" = "" |
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remLast cs = init cs |
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remBoth (c:cs) = remLast cs |
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remBoth _ = "" |
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main :: IO () |
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main = do |
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let s = "Some string." |
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mapM_ (\f -> putStrLn . f $ s) [remFirst, remLast, remBoth]</lang> |
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=={{header|Haskell}}== |
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<lang haskell>-- We define the functions to return an empty string if the argument is too |
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-- short for the particular operation. |
-- short for the particular operation. |
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