[NTG-context] Re: Link from a PDF to a reference of an embedded PDF

[Pablo Rodriguez <oinos@gmx.es>]

On 7/20/23 16:25, Gerion Entrup wrote:
> [...]
> Can I somehow access the references of inner.tex from outer.tex?
> For me, it is not that relevant, that the correct number is set, but the
> interaction within the outer PDF should work, so clicking on the
> reference should scroll to the correct content.

Hi Gerion,

not sure I’m getting your point right.

As such, one of the features of PDF are named destinations, such as in:

  https://www.pragma-ade.com/general/manuals/luametatex.pdf#%2381

I consider them as identifiers:

  https://wiki.contextgarden.net/Installation#Unix

If that could be what you might need, here is a sample.

First you have the destination file:

  \setupinteraction[state=start,
    focus=standard,
    prefix=n_,]
  \starttext
  \dorecurse{50}
    {a\footnote{b} }
  \startluacode
  luatex.wrapup(
    function()
      os.rename(tex.jobname .. ".pdf", "ba.pdf")
    end
  )
  \stopluacode
  \stoptext

Then you have calling file (with file:///):

  \setupinteraction[state=start,
    focus=standard]
  \def\MyURL#1{\goto{\tt#1}[url(#1)]}
  \starttext
  Link to other document: \MyURL{file:///path/ba.pdf\letterhash n_73}

  Link to the web:
 \MyURL{https://www.pragma-ade.com/general/manuals/luametatex.pdf#%2381}
  \stoptext

file:/// requires an absolute path. It might be handled right or not,
depending on your PDF viewer.

On Linux, Evince cannot open a file with named destination specified as
doc.pdf#destination (or doc.pdf#nameddest=destination). But it
understands file:///.

MuPDF-GL seems also not to handle named destinations, but it understands
file:/// too.

PDF.js (the default PDF viewer that comes with Firefox) handles named
destinations, but doesn‘t seem to understand file:/// as a link.

> Background of my question: I normally do graphics in a separate PDFs.
> Some graphics consists of source code together with a graphical
> representation and I want to be able to link to single source code lines.

I think it may be possible, but I don’t know how to generate named
destinations for source code lines.

Just in case it may help,

Pablo
___________________________________________________________________________________
If your question is of interest to others as well, please add an entry to the Wiki!

maillist : ntg-context@ntg.nl / https://www.ntg.nl/mailman/listinfo/ntg-context
webpage  : https://www.pragma-ade.nl / http://context.aanhet.net
archive  : https://bitbucket.org/phg/context-mirror/commits/
wiki     : https://contextgarden.net
___________________________________________________________________________________