On Mon, Feb 09, 2009 at 11:53:37PM +0900, Stephen J. Turnbull wrote: > Wouter van Heyst writes: > > > What is missing here? The ability to in a later rule undo the ignoring > > of a previous one? > > To *partially* undo it. I thought that was clearly implied, but I'll remember to be more precise in communicating with you :) Wouter van Heyst