read the design pattern smalltalk companion book there is a undo/redo based on iterator and command.
On Oct 16, 2013, at 3:46 PM, dimitris chloupis <theki...@yahoo.co.uk> wrote: > sounds fun. I would love to see an undo system that does not make my head > explode and do I dare say with some documentation included :D > > If that will be the case then I will love to implement this feature into the > undo history, so that everyone is happy.
