Hi Jean and Tassilo,
>>>>> jfbu <[email protected]> writes:
>> Now that you've mentioned it, I remember I wanted to do that change also
>> in the past and Keita-san stopped me from doing so for exactly this
>> reason.
Yes, I did. ;-)
> Would it make sense to apply these rules:
> 1. a $ in comments can never start math mode
> 2. but it can and will always stop math mode
That is a clean idea and, fortunately, easy to implment. Could you test
the attached patch?
One remark: This patch does not follow rigorously your proposition. A $
in comments does not stop math mode if it is preceded by odd numbers of
$'s like this:
foo bar blah % \$
Regards,
Ikumi Keita
diff --git a/font-latex.el b/font-latex.el
index e852ea7f..78256ce5 100644
--- a/font-latex.el
+++ b/font-latex.el
@@ -1914,10 +1914,12 @@ signs to follow the point and must be 1 or 2."
;; ignore this $. However, we need to keep our %$
;; workaround intact if there has been a valid
;; occurrence of $ in a non-math context.
- (not (and
- (looking-back
- (concat TeX-comment-start-regexp "[ \t]*"))
- (looking-at "[$][ \t]*\n"))))))
+
+ ;; If `num' is nil, we are searching "$" (or "$$")
+ ;; which begins math mode. In that case, we ignore
+ ;; it. Otherwise, we take it as a candidate which
+ ;; ends math mode.
+ (not num))))
(skip-chars-forward "$" limit))
;; check 2: Else, is "$" escaped?
((TeX-escaped-p)
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