[Haskell-beginners] Re: [Haskell-cafe] lists of arbitrary depth

On 13 July 2010 10:58, vadali wrote:

hello, iam really new to haskell,

i want to define a function which takes as a parameter a list which can contain other lists, eg. [1,[2,3],[4,[5,6]]]

how would i define a function that can iterate through the items so (in this example) iter1 = 1 iter2 = [2,3] iter3 = [4,[5,6]]

?

( can i do that without using the Tree data type? )

Maybe this should be moved to Haskell-Beginnners. It's impossible to have a function that works on a list of arbitrary nesting. But you could use a tree data type, yeah.