hello, i'd like to suggest that the definition of "intersperse" from the List module be made more lazy. in the hugs prelude (and GHC exhibits the same behaviour) we are given the following defn: intersperse :: a -> [a] -> [a] intersperse _ [] = [] intersperse _ [x] = [x] intersperse sep (x:xs) = x : sep : intersperse sep xs the second equation makes the defn, strict in the tail of the list. this is a probelm when processing lazy lists (e.g. things coming over a network), as one gets all events with a delay. here is an alternative definition: intersperse :: a -> [a] -> [a] intersperse _ [] = [] intersperse sep (x:xs) = x : rest where rest [] = [] rest xs = sep : intersperse sep xs bye iavor -- ================================================== | Iavor S. Diatchki, Ph.D. student | | Department of Computer Science and Engineering | | School of OGI at OHSU | | http://www.cse.ogi.edu/~diatchki | ==================================================