17 lines
455 B
Haskell
17 lines
455 B
Haskell
module List where
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-- Remove the nth element of a list. (0-indexed)
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-- RemoveAt 2 "abc" == ('c', "ab")
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removeAt :: Int -> [a] -> (a, [a])
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removeAt n xs = (xs !! n, take n xs ++ drop (n+1) xs)
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-- Split a string into a list of strings
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-- ex. split "ab,cd,ef" ',' == ["ab","cd","ef"]
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split :: String -> Char -> [String]
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split [] _ = [""]
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split (c:cs) delim
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| c == delim = "" : rest
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| otherwise = (c : head rest) : tail rest
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where
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rest = split cs delim
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