Re: pstricks style

[Ikumi Keita]

>>>>> jj.retorre@gmail.com (Jean-Jacques Rétorré) writes:
> jeu. 30 juil. 2020,  Ikumi Keita <ikumi@ikumi.que.jp> disait :
>> Thanks for reporting this issue. Do you think it's reasonable to replace
>> that (TeX-PDF-mode-off) in pstrickes.el with just (setq TeX-PDF-from-DVI
>> "Dvips") and let the user to determine the value of TeX-PDF-mode? (I
>> don't have experience with PSTricks, so I'd like to ask someone with
>> suitable knowledge about this.)

> I just replaced
> (TeX-PDF mode disabled)
> with

> (setq TeX-PDF-de-DVI "Dvips"
>       TeX-PDF-mode 1)
> (message "TeX-PDF-mode on, TeX-PDF-from-DVI: Dvips")

> Looks good, but it will be overwritten by an AUCTeX update

Thank you for your confirmation. I don't think it's a good idea to turn
on TeX-PDF-mode unconditionally. AUCTeX should honor each user's choice.

The current code
   (unless (or (member "pst-pdf" TeX-active-styles)
               (eq TeX-engine 'xetex))
     (TeX-PDF-mode-off))
usually turns off TeX-pdf-mode and I guess there are many users who
depends on, or expect, that behavior because it has been so so long
time.

So I think we have two approaches:
(1) Conservative approach
    Keep (TeX-PDF-mode-off) and add (setq TeX-PDF-from-DVI "Dvips"):
   (unless (or (member "pst-pdf" TeX-active-styles)
               (eq TeX-engine 'xetex))
     (TeX-PDF-mode-off)
     (setq TeX-PDF-from-DVI "Dvips"))

    In this case, you can achieve your aim by adding an explicit
    entry
    TeX-PDF-mode: t
    in the File Local Variables section of the file which uses
    PSTricks, because TeX-PDF-mode-off honor such explicit
    specification.

(2) Aggresive approach
    Remove (TeX-PDF-mode-off) and add (setq TeX-PDF-from-DVI "Dvips"):
   (unless (or (member "pst-pdf" TeX-active-styles)
               (eq TeX-engine 'xetex))
     (setq TeX-PDF-from-DVI "Dvips"))

    If most of the users of PSTricks wants to have pdf output via
    dvips+ps2pdf by default on contrary to my guess, this approach would
    be reasonable.
    In this case, users who prefer dvi output should add
    TeX-PDF-mode: nil
    in the File Local Variables section, or customize the global value
    of TeX-PDF-mode to nil.

What do you (plural) think about these ideas? I'd like to hear comments
and suggestions from not only Jean but also anyone interested in this
issue.

Regards,
Ikumi Keita