haskell - Sublists of a list using list comprehension -

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that simple. want generate sublists of list using list comprehension.

i.e: getsublist [1,2,3] [[1], [2], [3], [1,2], [1,3], [2, 3], [1,2,3]]

thanks

this implemented data.list.subsequences, if want define (for learning purposes), can this:

you can't list comprehensions, recursion looks this:

sublists [] = [[]] sublists (x:xs) = [x:sublist | sublist <- sublists xs] ++ sublists xs

read: sublist of empty list empty list. sublists of x:xs (i.e. list head x , tail xs) of sublists of xs each of sublists of xs x prepended them.


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