[NTG-context] Unwanted blank page before page figures when using non-placed (hidden) heads

Hans Hagen j.hagen at freedom.nl
Mon Jul 25 09:19:25 CEST 2022


On 7/24/2022 11:35 PM, cryo shock via ntg-context wrote:
> Hey there,
> 
> I am having trouble understanding some basic blank page behavior. I hope 
> that somebody of you can point me in the right direction.
> 
> My primary goal is to create application documents consisting of various 
> .tex components and with external PDF pages inserted as well. The second 
> part of that goal is to use multiple-level bookmarking as well. 
> Bookmarking should look like this:
> 
> - Letter
> - Resume
> - Testimonies
> -- Testimony A
> -- Testimony B
> -- Testimony C
> 
> In the following MWE you can see my progress along with some notes to 
> help understanding.
> 
> There are two questions, I'd wish could be answered:
> 
> 1. Why does TeX insert a blank page before a pagefigure I enclose within 
> a (hidden) head?
> 
> 2. Can the \bookmark[list]{text} command be somehow used for multi-level 
> bookmarking?
> 
> While the first question would make up for a more consistent solution, 
> the second question would do the job as well.
> 
> I hope some of you can enlighten me.
> 
> Cheers, k
> 
> 
> %%% START of MWE
> 
> \definehead[VisiSection][section]
> \setuphead[VisiSection][number=no]
> 
> \definehead[InvisiSection][VisiSection]
> \setuphead[InvisiSection][placehead=no]
> 
> \definelist[CustomBMarks]
> 
> \setupinteraction[state=start]
> \placebookmarks[VisiSection,InvisiSection,CustomBMarks]
> 
> \startcomponent * % not a product, no
>    \startVisiSection[title={Custom Section A}]
>      Text of Custom Section A
>    \stopVisiSection
>    \page
>    \startVisiSection[title={Custom Section B}]
>      Text of Custom Section B
>    \stopVisiSection
>    \startInvisiSection[title={Hidden Custom Section A}]
>      Text of Hidden Custom Section A
>    \stopInvisiSection
>    \page
>    \startInvisiSection[title={Hidden Custom Section B}]
>      Text of Hidden Custom Section B
>    \stopInvisiSection
>    \page
>    TEST\bookmark[CustomBMarks]{Start of Teststack} \dorecurse{800}{TEST 
> }NEEDLE\bookmark[CustomBMarks]{Needle in the Teststack} 
> \dorecurse{400}{TEST }TEST.\bookmark[CustomBMarks]{End of Teststack}
>    %%%
>    %%% So far no problems.
>    %%% The following combination does the job, but I see no possibility
>    %%% to arrange the "CustomBMarks"-list in multi-levels.
>    %%%
>    \page
>    \startstandardmakeup
>      \filterpages[{test.pdf}][1]\bookmark[CustomBMarks]{Pagefigure}
>    \stopstandardmakeup
>    %%%
>    %%% So the following method would be the best choice to work with
>    %%% multi-level bookmarks. But as soon as I start working with
>    %%% (custom) heads together with pagefigures, CTX places a blank
>    %%% page before every figure...
>    %%% Note: you don't need a dummy file. The last (unnumbered) page is
>    %%% the wanted external PDF. The numbered page before is the unwanted 
> one.
>    %%%
>    \startInvisiSection[title={External Testpage A}]
>      \startstandardmakeup
>        \filterpages[{test.pdf}][1]
>      \stopstandardmakeup
>    \stopInvisiSection
> \stopcomponent
because even a hidden head is something (anchor on page), you can try this:

     \startstandardmakeup
   \startInvisiSection[title={External Testpage A}]
       \filterpages[{test.pdf}][1]
   \stopInvisiSection
     \stopstandardmakeup

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