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Sound.Tidal.Utils

writeError​

writeError :: String -> IO ()

mapBoth​

mapBoth :: (a -> a) -> (a, a) -> (a, a)

mapPartTimes​

mapPartTimes :: (a -> a) -> ((a, a), (a, a)) -> ((a, a), (a, a))

mapFst​

mapFst :: (a -> b) -> (a, c) -> (b, c)

mapSnd​

mapSnd :: (a -> b) -> (c, a) -> (c, b)

delta​

delta :: Num a => (a, a) -> a

mid​

mid :: Fractional a => (a, a) -> a

The midpoint of two values

removeCommon​

removeCommon :: Eq a => [a] -> [a] -> ([a], [a])

readMaybe​

readMaybe :: Read a => String -> Maybe a

(!!!)

(!!!) :: [a] -> Int -> a

like !! selects nth element from xs, but wraps over at the end of xs

>>> map ((!!!) [1,3,5]) [0,1,2,3,4,5]
[1,3,5,1,3,5]

nth​

nth :: Int -> [a] -> Maybe a

Safer version of !! -

accumulate​

accumulate :: Num t => [t] -> [t]

enumerate​

enumerate :: [a] -> [(Int, a)]

enumerate a list of things

>>> enumerate ["foo","bar","baz"]
[(1,"foo"), (2,"bar"), (3,"baz")]

wordsBy​

wordsBy :: (a -> Bool) -> [a] -> [[a]]

split given list of a by given single a, e.g.

>>> wordsBy (== ':') "bd:3"
["bd", "3"]

matchMaybe​

matchMaybe :: Maybe a -> Maybe a -> Maybe a

fromRight​

fromRight :: b -> Either a b -> b