[Haskell-cafe] Re: Tree Guidance

[Hans van Thiel]

[snip]

Thanks, Apfelmus, for the references. Guess I'll start there, then. And
thanks, Chris, for the info and code. Read only 'up pointers' could be
what is needed. But before going on, I want first to get more
confortable with programming with trees. It's all very well to say
they're easy to roll, but lists are even simpler, and look at them...

Regards,

Hans