Re: TeX markup in \setupinteraction for PDF metadata fields

[Alan BRASLAU <alan.braslau@cea.fr>]

On Sun, 17 Jan 2016 19:27:31 +0100
Wolfgang Schuster <schuster.wolfgang@gmail.com> wrote:

> > Kate F <mailto:kate@elide.org>
> > 17. Januar 2016 um 18:53
> > On 17 January 2016 at 17:00, Wolfgang Schuster
> >
> > I don't know, actually. In this case these are values which remain
> > constant throughout the document. So all I'm after here is a
> > mechanism for storing variables by name. Is there something more
> > appropriate to use for those kind of variables?
> You can use the \setvariables command the set the values and access
> them with \getvariables:
> 
> \setvariables
>    [information]
>    [title=Document title,
>     author=Author name]
> 
> \setupinteraction
>    [ state=start,
>      title=\getvariable{information}{title},
>     author=\getvariable{information}{title}]
> 
> \starttext
> \unknown
> \stoptext
> 
> 
> There is also the \setupdocument command (a simple wrapper for the 
> \setvariables command)
> which uses predefined keywords to set fields in the pdf file. You can 
> access the values from
> \setupdocument command in your document with \documentvariable{<KEY>}.
> 
> \setupdocument
>    [ metadata:title=Document title,
>     metadata:author=Author name]
> 
> \setupinteraction[state=start]
> 
> \starttext
> \unknown
> \stoptext
> 
> Wolfgang


How does this play with
\startdocument
  [title=Document title,
   author=Me]

Here, I learn about metadata:title=
which suggests that I could do without
\setupinteraction
  [state=start,
   title={\getvariable{document}{title}},
   author={\getvariable{document}{author}}]

But, if I want to use the title etc. in the title page, should I do
something like:

\starttitlepagemakeup
  \getvariable{document}{metadata:title}
\stoptitlepagemakeup

Thanks

Alan
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