35 lines
935 B
Haskell
35 lines
935 B
Haskell
module AoC
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( (.:)
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, enumerate
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, oneCompleteResult
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, splitOnEmptyLines
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, runAoC
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)
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where
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import Data.Function (on)
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import Data.List (groupBy)
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import Text.ParserCombinators.ReadP
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(.:) :: (c -> d) -> (a -> b -> c) -> a -> b -> d
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f .: g = (f .) . g
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infixl 8 .:
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enumerate :: Enum i => i -> [a] -> [(i, a)]
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enumerate _ [] = []
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enumerate i (x:xs) = (i, x) : enumerate (succ i) xs
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oneCompleteResult :: ReadP a -> String -> Maybe a
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oneCompleteResult p s = case readP_to_S (p <* eof) s of
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[(x, "")] -> Just x
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_ -> Nothing
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splitOnEmptyLines :: String -> [[String]]
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splitOnEmptyLines = filter (not . any null) . groupBy ((==) `on` null) . lines
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runAoC :: (Show r1, Show r2) => (String -> i) -> (i -> r1) -> (i -> r2) -> IO ()
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runAoC inputTransform part1 part2 = do
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contents <- inputTransform <$> getContents
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print $ part1 contents
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print $ part2 contents
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