On Feb 18, 2005, at 1:53 PM, Richard Gaskin wrote:
Any of you have pointers to general methods for implemening undo across an app?
In a simple case, I have each undoable action push a line onto the end of a bunch of lines in a global. For an undo, the code simply pops the line and gives it to 'do'.
To keep from getting confused, I put each undoable action in a handler with a name, say 'abc' and it uses the handler 'undoAbc' in the line pushed onto the end of the undo list.
Dar
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