Hi Toby, This package addresses all of my undo concerns! (I recently posted a slightly humorous explanation at http://groups.google.com/group/gnu.emacs.help/msg/b802df52522533f8 .) I would be delighted if it were integrated into emacs!
FWIW, I found that characterp was not a function in Carbon Emacs 22.2.1 . I replaced it with char-valid-p. Don't know if that's the same. One type of information that would be good to store (but standard undo does not store it) is visibility. If you are in org-mode, and you undo, you want the folding state of subtrees to be as it was, else you can undo stuff that is hidden etc. I wonder if that is possible, or, if not, if Emacs can be made to support it for your package. I would recommend making the visualization mode respect pop-up-windows, as currently it opens a new window even when that variable is nil. It is difficult for the user to make the mode appear in the current window without modifying your code. Mode help would be useful for that mode. In that mode, up arrow for me caused "undo-tree-current accessing a non-undo-tree". The buffer's mode changed to Fundamental and the visualization disappeared. Do you know whether org-mode uses markers in a way that would require it to restore them? I know that it does use markers. I will start using it all the time now and report any bugs directly to you. Thanks! Samuel _______________________________________________ gnu-emacs-sources mailing list gnu-emacs-sources@gnu.org http://lists.gnu.org/mailman/listinfo/gnu-emacs-sources
