Jean-Marc Lasgouttes wrote: > What happens if the function decides to change nothing after all? We have a > useless > undo step.
so if somebody pushes ctrl+z, one step nothing happens? undo machinery could detect and kill empty start-end undo block at the end. > recordUndo only applies to AtPoint lfuns, which is a bit strange. If I > remove the extra test for AtPoint flag > it will apply to all cursor-related lfuns. We can do that, but it is an > invasive change. > > As you prefer. no, you are the architect of undo machinery, so you decide :) i only wondered whether one common undo call is not more safe then dessiminating it in many different places, if you think its better, ok. pavel
