Re: master 04b9a6d1: Improve shortvrb.sty support

[Ikumi Keita]

Hi Arash,

>>>>> Arash Esbati <arash@gnu.org> writes:
> It seems that the Fontification is bleeding, but I can't see why and if
> I open the test in a regular .tex file, it works as expected.  I'm
> attaching the change, do you see what's going wrong?

It turned out that the following piece of code in font-latex-test.el is
the culprit:
(define-advice LaTeX-common-initialization (:after ())
  (font-lock-ensure))

Due to this advice, syntax propertization runs before
`font-latex-syntactic-keywords-extra' is ready, so emacs thinks that
"Syntax propertization is already done." and doesn't apply the updated
contents of `font-latex-syntactic-keywords-extra'.

We can circumvent this situation by inserting
      (syntax-ppss-flush-cache (point-min))
between
      (TeX-update-style t)
and
      (font-lock-ensure)
in `font-latex-shortvrb-chars' in font-latex-test.el.

(In a longer term perspective, we should factor out the syntax
propertization facility out of font-latex.el and implement it as a major
mode functionality in order to avoid these gotchas due to involvement of
syntax propertization and font lock.)

By the way, I think these syntax table codes in shortvrb.el are no
longer necessary, aren't they?
   ;; Syntax
   (when LaTeX-shortvrb-chars
     (let ((st (make-syntax-table (syntax-table))))
       (dolist (c LaTeX-shortvrb-chars)
         (modify-syntax-entry c "\"" st))
       (set-syntax-table st)))


Regards,
Ikumi Keita
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