do and if then else (Ticket 23)

This seems like a good idea, but if it's adopted, I'd argue that the same thing should be done to case, for consistency. I like to lay out case like this: case whatever of blah -> bluh blah' -> bluh' and that also breaks under do. case exp1 [;] of ... would solve this. -- Jón Fairbairn Jon.Fairbairn at cl.cam.ac.uk