Re: [AUCTeX] files with non-ascii characters and LaTeX as in TeXLive 2018

[jfbu]

Hi Keita


I have applied your patch (with diff of preview.el.in
transferred to preview.el) to my elpa installed 12.1.0

(later I
saw I had 12.1.1 on another computer and that preview.el
had changed a bit. As the elpa comes with .gitignore
which by bad luck for me has /preview.el, my initial
commit did not have the original one which I then
manually modified with your patch ---
I recovered later from the other computer the preview.el
there and re-did my commits)

(b.t.w. I also git cloned the savannah, and
https://git.savannah.gnu.org/cgit/auctex.git has a typo it should be
https://git.savannah.gnu.org/git/auctex.git
)


Le 24/05/2018 à 17:26, Ikumi Keita a écrit :
> Hi Jean and all,
>
> The proposed method, with slight modification explained below, works for
> all the cases I tested.  Thank you again!
> For now, I attach the patch for preview-latex part only so that the
> reader can concentrate on the relavant changes.
>
> > > > > > jfbu <address@hidden> writes:
>
> > > \ifx\pdfoutput\undefined\else\let\PREVIEWdump\dump\def\dump{%
> > > \edef\next{{\pdfoutput=\the\pdfoutput\relax\the\everyjob}}%
> > > \everyjob\next\catcode`\ 10 %
> > > \catcode`/ 0 %
> > > \def\AUCTEXINPUT##1{\catcode`/ 12\relax\catcode`\ 
> > > 9\relax\input{\detokenize{"##1"}}}%
> > > \let\dump\PREVIEWdump\dump}\fi\input mylatex.ltx \relax%
>
>
> > > Notice that when ##1 (i.e. the filename) will be grabbed) the / is of
> > > catcode 0, so ##1 is tokenized accordingly. Which in principle could
> > > perhaps cause an issue \detokenize{aaa/b23} would give aaa/b<space>123
> > > but as / is not legal in filenames in contexts I know of, I did not even
> > > test this anticipation.
>
> AUCTeX always runs TeX commands after changing the current directory to
> that of the master file, so forward slash would never appear as an
> argument of the command.  The region file is created in the same
> directory as the master, thus region compilation should work as well.
>
> > > I have also added quotes inside the \detokenize.
>
> I tried removing those quotes and let the quotes added around the file
> name with space to be put inside /AUCTEXINPUT like this:
> pdflatex -foo -bar &prv_ppp_qqq /AUCTEXINPUT{"ppp qqq"} (without escape for 
> shell)
> , because it's easier to absorb the difference in the way of quoting the
> shell arguments between w32 and non-w32 platforms.  Experiments showed
> no problems even for files without space, so the attached patch takes
> this way.  If this has any shortcomings, please tell me.

My testing so far indicates no problem on Mac OS X 10.9.5

I was intrigued by these changes related to quotes, but it turns out
when I had tried manually on the command line that I was not quoting
correctly.

With your patch on top of 12.1.0 I successfully generate preview for a file
with both spaces and utf-8 characters.

The top of preview generation log displays starts like this;

Running `Preview-LaTeX' on `test my látéx' with ``pdflatex -interaction=nonstopmode \&prv_test_my_la\́te\́x 
"/AUCTEXINPUT{" \"test\ my\ la\́te\́x.tex\" "}"''

(the Mac OS uses a special form of Unicode for filenames with combining
characters)

I did not check the ini file because it is volatile but I think you
indicated how to modify cache-preamble to make it permanent.

Anyway, above file with contents

\documentclass{article}
\def\foo{E=mc^2}
\def\bar{x^n + y^n = z^n}
\def\foofoo{E=h\nu}
\begin{document}
\(\foo\)
\(\bar\)
\(\foofoo\)
\end{document}

generates correct previews.

It also compiles fine because my TeX-command-list does not have the
 %` and %'.
And the non-\input form correctly escapes the spaces for the shell
so it seems.

A proposito, the above in the pdflatex command (once the format
is done)means \input will be with extra spaces

\input{<space>"test my látéx.tex"<space>}

but fortunately that works fine.

(one can check that by using this

\\def\\AUCTEXINPUT##1{\\catcode`/ 12\\relax\\catcode`\\ 
9\\relax\\message{+++\\detokenize{##1}+++}\\input{\\detokenize{##1}}}%

in preview.el and then check generate-preview compilation log)

LaTeX2e <2018-04-01> patch level 4
CUSTOMISED FORMAT. Preloaded files:
        .
 "test my látéx.tex"
 article.cls    2014/09/29 v1.4h Standard LaTeX document class
  size10.clo    2014/09/29 v1.4h Standard LaTeX file (size option)
        .
+++ "test my látéx.tex" +++ (./test my látéx.tex
No file "test my látéx".aux.

Anyway, all seems fine!

Thanks!

Jean-François