src/Data/Maybe/Read.hs


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module Data.Maybe.Read (readMaybe) where

-- readMaybe function from "Learn You a Haskell".  Used here under CC BY-NC-SA 3.0.

readMaybe    :: (Read a) => String -> Maybe a
readMaybe st = case reads st of
    [(x,"")] -> Just x
    _        -> Nothing