Duncan Coutts wrote:
Have you tried pure lazy functional programming without stacked monads?
I want to process multiple results. The list monad seems a natural way to do this. (All of which goes horribly wrong when you try to add error processing...)
I've never been convinced that stacked monads is a good way to write ordinary code. Monad transformers are great for building your own custom monads but they should be wrapped in a newtype and made abstract. One shouldn't have to see the multiple layers. If ordinary code is full of 'lift' then it would seem to me that one is doing something wrong.
Given that what I'm attempting to do is extremely simple, yet I am having extreme difficulty doing it, yeah, I think we can safely conclude I'm doing something wrong.