Hi!
> But are you sure that changing the GNU Emacs version of
> `TeX-activate-region' from a no-op to the above has no undesired
> side-effects? I mean, it's also used at some other places in latex.el,
> tex-info.el, and context.el.
I expect that the change doesn't bring about undesired side-effects.
Here is the summary of the investigation.
(1) The uses of `TeX-activate-region' in latex.el, tex-info.el and
context.el are essentially the same. It is used in
`LaTeX-mark-environment', `LaTeX-mark-section' and its friends, and
in the following form:
(defun XXX-mark-YYY (&optional ZZZ)
...
(TeX-activate-region))
(2) There is one difference to `LaTeX-mark-environment' between before
and after my change to `TeX-activate-region'. When
`transient-mark-mode' is nil, after `LaTeX-mark-environment'
the region is...
- not activated if `TeX-activate-region' is no-op
- activated with `TeX-activate-region' with my change.
That is the only side-effect to `LaTeX-mark-environment' I'm aware of
currently. I hope side-effects to others are limited to similar
harmless ones.
However, if you are afraid of undiscovered incompatibilities, I don't
adhere to changing `TeX-activate-region'. In that case, I hope the
attached patch which just changes `push-mark' to `set-mark' in
`TeX-insert-dollar' would be helpful.
Regards,
Ikumi Keita
diff --git a/tex.el b/tex.el
--- a/tex.el
+++ b/tex.el
@@ -5540,18 +5540,18 @@
((and (eq last-command 'TeX-insert-dollar)
(re-search-forward "\\=\\$\\([^$][^z-a]*[^$]\\)\\$" (mark) t))
(replace-match "$$\\1$$")
- (push-mark (match-beginning 0) t))
+ (set-mark (match-beginning 0)))
;; \(...\) to \[...\]
((and (eq last-command 'TeX-insert-dollar)
(re-search-forward "\\=\\\\(\\([^z-a]*\\)\\\\)" (mark) t))
(replace-match "\\\\[\\1\\\\]")
- (push-mark (match-beginning 0) t))
+ (set-mark (match-beginning 0)))
;; Strip \[...\] or $$...$$
((and (eq last-command 'TeX-insert-dollar)
(or (re-search-forward "\\=\\\\\\[\\([^z-a]*\\)\\\\\\]" (mark) t)
(re-search-forward "\\=\\$\\$\\([^z-a]*\\)\\$\\$" (mark) t)))
(replace-match "\\1")
- (push-mark (match-beginning 0) t))
+ (set-mark (match-beginning 0)))
(t
;; We use `save-excursion' because point must be situated before opening
;; symbol.
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