Re: table.el

Tak> Lastly, as I explained in the comment in table.el there is Tak> one serious problem in table.el to be compatible with Xemacs. Tak> It is how Xemacs implements intervals for Emacs notion of Tak> text properties. When undoing some editing operation on text Tak> properties things are reasonably reversible. However, under Tak> current Xemacs interval implementation once joined interval Tak> does not seem to separate correctly by undoing the last Tak> operation that has joined the originally separated intervals. Can you give an explicit example? I don't have a copy of table.el at the moment. Specificially, what is "incorrect" about the separation? Also, are you using the text property interface, the "overlay compatibility" interface, or the native extent interface? Tak> A section in the emacs lisp info explains this better than I Tak> did above. Following is that page. Typical FUD. In Japanese, "tatemae." Do not trust the GNU manuals' explanations of "why XEmacs can't work". (I leave the "hon'ne" to your imagination.) Specifically, they internally implement text properties as a table of intervals, so we can emulate with extents (and if necessary extend the core C code for efficiency). It turns out that in practice there are satisfactory answers to _all_ of the problems posed in that node, as long as you define "satisfactory = sensible defaults + flexible API". Most likely the problem here is an unusual case that our current code doesn't account for. If it's that unusual, we can change the behavior without affecting other code, or if necessary we extend the API. When you run into difficulties, feel free to ask us for help. Usually together we can find a satisfactory implementation. -- Institute of Policy and Planning Sciences http://turnbull.sk.tsukuba.ac.jp University of Tsukuba Tennodai 1-1-1 Tsukuba 305-8573 JAPAN Ask not how you can "do" free software business; ask what your business can "do for" free software.