From: Michael Mossey

Now my monad looks like

testMonad = do   cursor <- gets PlayState.cursor   len    <- gets PlayState.len   let newCur = min (cur+1) (len-1)   modify $ PlayState.update_cursor newCur

Now I can define an abbreviation for PlayState. This is a big help. Also, I find this more readable. To me

   PlayState.cursor

is more readable than    playState_cursor

For one thing, syntax highlighting helps in the former case. For another, the latter case requires that you recognize a naming convention, but the former case says clearly: "cursor is within the namespace PlayState, so this combination must be describing a cursor related to PlayState."

I do this as well, although I would probably import like this: import qualified PlayState as PS which then allows for "PS.cursor" John