Re: [Bug-AUCTeX] 2014-07-13; Requests for the mark management improvements

[Ikumi Keita]

Hi Tassilo, thank you for your reply!

>> (2) TeX-insert-dollar now has a nice feature that repeating type of `$'
>> toggles between inline equation, display equation, and no equation
>> if TeX-electric-math is properly set up.  I have a question about
>> the management of the mark with respect to that toggle.

...(snip)...

>> If not so, I propose to replace push-mark with just goto-char like
>> in the attached patch-2.

> Sorry, in the current form this patch cannot go in since `activate-mark'
> seems not to be available in XEmacs.

Well, I believe that it does not break XEmacs compatibility because the
code in question has the following structure:

---- line 627-777 in tex.el ------------------------------------------
;;; Special support for XEmacs

(when (featurep 'xemacs)
...
  (fset 'TeX-activate-region (symbol-function 'zmacs-activate-region))
...
... )

;;; Special support for GNU Emacs

(unless (featurep 'xemacs)
...
  (defun TeX-activate-region ()
    (setq deactivate-mark nil)
    (activate-mark))
...
... )
-----------------------------------------------------------------------

Regards,
Ikumi Keita

P.S. Although I used goto-char in the patch-2, it may be better to use
set-mark there.  The point is located before the mark if one uses
goto-char, while the point is located after the mark if one uses
set-mark.