[bug] Extents not restored correctly by undo.

Karl> I'm editting an HTML::Mason component using "mmm-mode". Karl> When I used "undo" to back up to having percent signs Karl> instead of ampersands again, the extent that was in cperl Karl> mode stayed the same; IT WAS NOT ALSO UNDONE. That's a bug. That's a bug in what? How is XEmacs supposed to know the extent is supposed to be undone? That depends on the mode and the purpose of the extent. undo does not affect things like mode and so on; it is not XEmacs's job to undo that. Granted, XEmacs has known problems with the syntax code, heavily affecting font-locking, which presumably is similar to this. If you can show a likelihood there's a bug in XEmacs such that mmm-mode is trying to get rid of the extent and fails to, that's another matter. -- University of Tsukuba Tennodai 1-1-1 Tsukuba 305-8573 JAPAN Institute of Policy and Planning Sciences Tel/fax: +81 (298) 53-5091 _________________ _________________ _________________ _________________ What are those straight lines for? "XEmacs rules."