Re: [Haskell-cafe] Re: stateful walk through a tree?

Hi,

...

I am looking for help in design of a stateful tree walker.

I think that you can use Data.Traversable to great effect.

thanks, the advice has helped. I can't use it directly since i didn't yet come up with a consistent solution to serialization of events, but I am going to compile the second pass into combined actions.

Well, Haskell doesn't have mutable variables as LISP or ML do.

I meant STM, sorry for being unclear. David