* Ihor Radchenko <yanta...@posteo.net> [2023-02-17 16:32]:
> Bruno BEAUFILS <br...@boulgour.com> writes:
>
> > On Fri, Feb 17, 2023 at 10:55:34AM +0000, Ihor Radchenko wrote:
> >> > How so?
> >>
> >> latexmk -interaction=nonstopmode
> >
> > Still do not get the problem. I though that the exit code of the
> > underlying process was used but after having try to understand some of
> > the ox-latel.el I discover that it seems to be done another way
> > (analysing the output if I am right).
>
> Even if we used exit code, what would it achieve?
- user wants PDF file
- with exit code other but zero there will be no PDF file
- display error or move user straight to LaTeX file to try it out
manually or find what is wrong.
Personally I use exit code from LaTeX processing.
- I like to be careful with existing PDF files, as sometimes PDF file
is exported in different way, and maybe I am making mistake. So I
like to be cautious about it.
- Here below `latex-function' must return zero and `pdf-file' must
exist for system to update it's Hyperlink correctly, and to launch
Evince PDF viewer.
- But if error status is not zero, I want to find myself in LaTeX file
straight, then I can try C-c C-a to understand why it did not work.
(defun hyperscope-latex-to-pdf (id)
(let* ((default-directory (hyperscope-expand-directory-for-id id))
(latex-file (hyperscope-hyperdocument-file-name-full id "tex"))
(text (hyperscope-text id))
(pdf-file (hyperscope-hyperdocument-file-name-full id "pdf"))
(latex-function (lambda () (call-process "pdflatex" nil "*pdflatex*"
nil latex-file))))
(string-to-file-force text latex-file)
(when (and (file-exists-p pdf-file)
(y-or-n-p "Delete existing PDF? "))
(delete-file pdf-file))
(cond ((and (zerop (funcall latex-function))
(file-exists-p pdf-file))
(rcd-db-update-entry "hyobjects" "hyobjects_link" id pdf-file hs-db)
(hyperscope-evince pdf-file))
(t (rcd-warning-message "Could not create PDF")
(find-file latex-file)))))
If I would just assume that `latex' command "just worked", that means
I am blindly continuing with some other functions thereafter, but that
would mean I am creating some errors.
--
Jean
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