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21 lines
619 B
Text
21 lines
619 B
Text
module SublistExample where
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import List exposing (..)
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import String
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sublist : List a -> List a -> String
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sublist alist blist =
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if alist == blist then "Equal" else
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if inList alist blist then "Superlist" else
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if inList blist alist then "Sublist" else "Unequal"
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inList : List a -> List a -> Bool
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inList alist blist =
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let getLastInList sublist =
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case (List.tail sublist) of
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Just list -> list
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Nothing -> []
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in
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if (List.length alist) < (List.length blist) then False else
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if (List.take (List.length blist) alist) == blist then True else
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inList (getLastInList alist) blist
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