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Is there a trick or a prelude function to test if a list contains a specific substring/sublist?
xyz :: [a] -> [a] -> Bool
xyz "hello world" "worl" -> True
xyz [1,2,3,4,5,6,7,8,1,2,3,4,5] [7,8,1] -> True
I tried to write one on my own, but this is a trivial problem and I don’t want to reinvent the wheel.
Use
isInfixOffrom Data.List.The parameters are the other way round from what you asked for — it’s usually most readable to use the function like this:
"worl" `isInfixOf` "hello world"(returns True).