[NTG-context] Re: Most recent context doesn't like synctex?

[Mikael Sundqvist <mickep@gmail.com>]

Hi,

On Sat, Apr 13, 2024 at 7:54 PM Jim <zlists+context@jdvb.ca> wrote:
>
> Thanks for the quick reply.
>
> On Sat, Apr 13, 2024 at 09:18 (+0200), Hans Hagen wrote:
>
> > On 4/13/2024 12:39 AM, Jim wrote:
> >> Hi,
>
> >> I have both TeXlive 2024 and the stand-alone ConTeXt distribution on my
> >> system.
>
> >> Recently, the stand-alone ConTeXt distribution seems to not create a
> >> synctex file any more.  Specifically,
>
> >>      /usr/local/context/tex/texmf-linux-64/bin/context --once --texutil --synctex=1 --nonstop file.tex
>
> >> does not create a .synctex file (and deletes it, if it is there), whereas
> >> the TeXlive version
>
> >>      /usr/local/texlive/2024/bin/x86_64-linux/context --once --texutil --synctex=1 --nonstop nwg_newsletter_2024_04.tex
>
> >> does create the .synctex file.
>
>
> >> The ConTeXt distribution version *does* create the file if --nonstop is
> >> *not* used.  Knowing that, I can work around this for now, although
> >> emacs+auctex probably won't be happy without --nonstop.
>
> >> I updated the stand-alone ConTeXt a few minutes ago, so I'm up to date on
> >> that.
>
> >> Is this a bug introduced by some recent change?
>
> > it's more a feature
>
> I guess one person's bug is another person's feature.  :-)
>
> > - Mikael S and i spend some time with editor/viewer combinations on linux in
> > order to find ways around the different synctex libs that they use
>
> > - as a result we could make most work ok
>
> Are these recent changes?  And should emacs+auctex+PDFview work now?

What will work will depend on the viewers. We noticed a few weeks ago
that synctex (pdf -> editor) was not working in a few viewers (okular)
while it was working in others. After some debugging, our conclusion
was that different versions of the library/application were used, or
different approaches. We found a way to generate the stuff in the pdf
to make it work for the failing viewers we had. Hans did then not
replace this with the old approach, since then the previously working
viewers might break. He therefore added repeat as a key, so
\setupsynctex[state=repeat] will use the new approach.

>
> > - we assume that synctex is set up in the document with
>
> >     \setupsynctex[state=start]
> >     \setupsynctex[state=repeat] % less efficient but gets around issue
>
> I haven't been using either of those, since auctex does The Right Thing for
> me.  Or, at least, it used to.
>
> > - when context is run 'headless' (on a server) it's often done in
> > batchmode because one knows that the style works and in that case synctex
> > makes no sense so we disable it; this avoids the need to patch the style
>
> I (think I) see what you are saying, but if one explicitly uses --synctex
> on the command line, should that not over-ride the over-ride?  Or, put
> another way, would the following not make sense:
>     if --synctex is used on the command line
>         create synctex file
>     else if --nonstop is used on the command line
>         do not create the synctex file
>     else if \setupsynctex[...] is used in the source file
>         create the synctex file
>     else
>         do not create the synctex file
>
> > - the manual has been updates

workflows-synctex.tex now suggests:

"When your viewer doesn't return to the editor, you can try

\starttyping
\setupsynctex[state=repeat]
\stoptyping

or

\starttyping
context --synctex=repeat somefile.tex
\stoptyping

This will give a bit larger file that tries to fool the areas resolver in the
library that the viewer uses."

/Mikael
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