Re: [Xmonad] darcs patch: Introduce NonEmptyStack.

droundy:

Hi all,

Here's a patch implementing a NonEmptyStack type that is our zipper without the Empty possibility. I like this change, but haven't cleaned up the comments as it's not clear that others will like it. I made modify accept a function that will only modify NonEmptyStacks, which covers all the possibilities but delete.

i'm open to this. Just want to think about it a bit. Another option I used was to change the type of with's second argument, to take a non-empty stack type. I'll look at this. -- Don