10 Apr
2007
10 Apr
'07
7:04 p.m.
On Wed, Apr 11, 2007 at 12:13:10AM +0200, Bas van Dijk wrote:
Hello,
For my own exercise I'm writing a function 'weave' that "weaves" a list of lists together. For example:
weave [[1,1,1], [2,2,2], [3,3]] ==> [1,2,3,1,2,3,1,2] weave [[1,1,1], [2,2], [3,3,3]] ==> [1,2,3,1,2,3,1]
Note that 'weave' stops when a list is empty. Right now I have:
If it wasn't for that, you could use import Data.List(transpose) weave :: [[a]] -> [a] weave = concat . transpose e.g.
weave [[1,1,1], [2,2], [3,3,3]] ==> [1,2,3,1,2,3,1,3]
Brandon