Re: [AUCTeX] Set automatically TeX-PDF-from-DVI variable if documentclass receives option dvipdfmx or dvipdfm

[jfbu]

Hi Keita,

Le 30/10/2018 à 15:38, Ikumi Keita a écrit :
> Hi Jean and all,
>
> > > > > > jfbu <address@hidden> writes:
> > afaict in case of say \documentclass[dvipdfmx]{article}
> > the AUCTeX parsing does not set TeX-PDF-from-DVI variable
> > to "Dvipdfmx". This has to be done by user.
>
> > It would be nice to get this done automatically in case
> > of document class option dvipdfm or dvipdfmx.
>
> > Similarly dvips global option should trigger "Dvips"
>
> I at last reached at a state with some spare time and incorporated your
> suggestion.  Very sorry for such a late response!
>
> At first I thought it is an easy job of adding similar code around a
> bunch of
>    (TeX-add-style-hook ... ... LaTeX-dialect)
> lines in latex.el, but it turned out that the expected code doesn't
> work.  After some survey, I realized that these all lines are not
> effective for some years due to the common reason with bug#25563:
> https://debbugs.gnu.org/cgi/bugreport.cgi?bug=25563
> I.e., the class options are no longer treated as styles in the sense of
> AUCTeX.
>
> I added some codes to recover the functionality of these lines, so they
> just began to work again in the codes in the latest git repository.
>
> > Also options to graphicx and/or geometry package could be scanned.
>
> I added these functionality as well.  The option "dvipdfmx" for these
> packages now sets `TeX-PDF-from-DVI' to "Dvipdfmx".
>
> Thanks for your useful suggestion.

Sorry for late reply.

I did so far only minimal testing and it works fine with this (example) 
preamble:

\documentclass[a4paper, french, dvipdfmx]{amsart}
\usepackage{amssymb}
\usepackage{babel}
\frenchsetup{PartNameFull=false, og=«, fg=»}
\usepackage[dvipdfmx]{graphicx}
\usepackage[T1]{fontenc}

However, my original did not have the \usepackage[dvipdfmx]{graphicx}, i.e.,
it was

\documentclass[a4paper, french, dvipdfmx]{amsart}
\usepackage{amssymb}
\usepackage{babel}
\frenchsetup{PartNameFull=false, og=«, fg=»}

\usepackage[T1]{fontenc}

and then it does not seem to work, i.e. the class option is not picked up.

I will investigate more when I get time, but wanted to report this in case
you can reproduce it.

Thanks a lot for implementing this, this is very useful to me,

Best,

Jean-François