> > I think for the reason above that it should be buffer local and I also > > think that it should be permanent buffer local then. > > I think this wouldn't make much sense since `buffer-undo-list' isn't > permanently buffer-local either. > > It is, practically speaking. It is buffer-local, and changing major > modes does not clear it out.
Like `buffer-file-name'. Would it make sense to introduce a variable, say `buffer-file-name-extension', assign its initial value from `buffer-file-name', make it a permanent buffer-local, and hope that the value of the new variable always correctly reflects the extension of `buffer-file-name' without any additional provisions? Various parts of Emacs manipulate `buffer-undo-list' in various ways. `revert-buffer' may reset it. Some applications temporarily bind it to t to avoid, for example, recording text property changes. Finally undo recording may be switched off. Should `pending-undo-list' be affected by all these and how? _______________________________________________ emacs-pretest-bug mailing list [email protected] http://lists.gnu.org/mailman/listinfo/emacs-pretest-bug
