Re: Failed to skip from chapter tex file to master pdf file.

[Hongyi Zhao]

On Mon, Jul 12, 2021 at 2:10 PM Tassilo Horn <tsdh@gnu.org> wrote:
>
> Hongyi Zhao <hongyi.zhao@gmail.com> writes:
>
> > Sorry for my misunderstanding. Really, it can pinpoint the problem:
> >
> > (delq nil (mapcar (lambda (buf)
> >                     (with-current-buffer buf
> >                       (when (eq major-mode 'latex-mode)
> >                         (cons (buffer-file-name buf)
> >                               (TeX-master-file "pdf")))))
> >                   (buffer-list)))
> > (("/home/werner/Public/hpc/tools/thesis/gitlab.kwant-project.org/jbweston/thesis.git/content/josephson.tex"
> > . "josephson.pdf")
> > ("/home/werner/Public/hpc/tools/thesis/gitlab.kwant-project.org/jbweston/thesis.git/content/appendix.tex"
> > . "../thesis.pdf")
> > ("/home/werner/Public/hpc/tools/thesis/gitlab.kwant-project.org/jbweston/thesis.git/thesis.tex"
> > . "thesis.pdf"))
> >
> > As you can see, only the chapter/master files which have been set the
> > correct TeX-master variable will report the correct master PDF file.
>
> So the issue is solved, right?

Yes. Thank you again for your insightful guidance.

> >> > Why can't `(La)TeX-mode' return the correct result:
> >> >
> >> > (delq nil (mapcar (lambda (buf)
> >> >                     (with-current-buffer buf
> >> >                       (when (eq major-mode 'TeX-mode)
> >> >                         (cons (buffer-file-name buf)
> >> >                               (TeX-master-file "pdf")))))
> >> >                   (buffer-list)))
> >>
> >> Because the symbols latex-mode and LaTeX-mode or TeX-mode are not `eq'
> >> (identical).  `major-mode' is just a symbol, and in an AUCTeX LaTeX
> >> buffer it'll be set to `latex-mode'.
> >
> > But see the following statement on
> > <https://www.gnu.org/software/emacs/manual/html_node/reftex/Installation.html>:
> >
> > ```
> > 1.1.3 Entering RefTeX Mode
> >
> > To turn RefTeX Mode on and off in a particular buffer, use M-x
> > reftex-mode RET. To turn on RefTeX Mode for all LaTeX files, add the
> > following lines to your .emacs file:
> >
> > (add-hook 'LaTeX-mode-hook 'turn-on-reftex)   ; with AUCTeX LaTeX mode
> > (add-hook 'latex-mode-hook 'turn-on-reftex)   ; with Emacs latex mode
> > ```
> >
> > It says that the AUCTeX LaTeX mode should be called `LaTeX-mode',
> > while the Emacs latex mode is called `latex-mode'
> >
> > Any hints on this description?
>
> Yes, the AUCTeX variant of latex-mode shows up as LaTeX in the mode-line
> (that's its name), and its hook is `LaTeX-mode-hook'.  But still it sets
> `latex-mode' as the symbol.  The reason is that AUCTeX replaces the
> stock tex-mode and latex-mode that comes with emacs rather than defining
> new, alternative modes next to the standard ones.

Got it.

Best,
Hongyi