markings and syncing

markings and syncing

[Thomas A. Schmitz]

Hi,

I'm trying to set up a header: if a page contains only one marking, it 
should display this, if it has more than one, display the first and 
last. Here's what I tried, unsuccessfully:

\definemarking [test]

\startsetups [test header]
\doifelse {\expanded{\getmarking[test][top]}} 
{\expanded{\getmarking[test][bottom]}}
	{\getmarking[test][top]}
	{\getmarking[test][top] and \getmarking[test][bottom]}
\stopsetups

\setupheadertexts [\setups{test header}]

\starttext

\marking[test] {One}

\input knuth

\marking [test] {Two}

\page

\marking [test] {Three}

\input tufte

\stoptext

How can I make the \doifelse work? I'm not sure I understand the 
keywords top/bottom, first/last, and previous/next.

Thomas
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Re: markings and syncing

[Wolfgang Schuster]

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> Thomas A. Schmitz <mailto:thomas.schmitz@uni-bonn.de>
> 22. Oktober 2015 um 13:51
> Hi,
>
> I'm trying to set up a header: if a page contains only one marking, it 
> should display this, if it has more than one, display the first and 
> last. Here's what I tried, unsuccessfully:
>
> \definemarking [test]
>
> \startsetups [test header]
> \doifelse {\expanded{\getmarking[test][top]}} 
> {\expanded{\getmarking[test][bottom]}}
>     {\getmarking[test][top]}
>     {\getmarking[test][top] and \getmarking[test][bottom]}
> \stopsetups
>
> \setupheadertexts [\setups{test header}]
>
> \starttext
>
> \marking[test] {One}
>
> \input knuth
>
> \marking [test] {Two}
>
> \page
>
> \marking [test] {Three}
>
> \input tufte
>
> \stoptext
>
> How can I make the \doifelse work? I'm not sure I understand the 
> keywords top/bottom, first/last, and previous/next.
You have to use the \fetchmark command (which is currently broken but I 
sent a fix to the dev list)
to check the content of both marks because \getmarking isn’t expandable.

\startsetups [test header]
     \doifelse{\fetchmark[test][top]}{\fetchmark[test][bottom]}
         {\getmarking[test][top]}
         {\getmarking[test][top] and \getmarking[test][bottom]}
\stopsetups

Wolfgang

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

maillist : ntg-context@ntg.nl / http://www.ntg.nl/mailman/listinfo/ntg-context
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___________________________________________________________________________________

Re: markings and syncing

[Thomas A. Schmitz]

On 10/22/2015 05:59 PM, Wolfgang Schuster wrote:
> You have to use the \fetchmark command (which is currently broken but I
> sent a fix to the dev list)
> to check the content of both marks because \getmarking isn’t expandable.
>
> \startsetups [test header]
>      \doifelse{\fetchmark[test][top]}{\fetchmark[test][bottom]}
>          {\getmarking[test][top]}
>          {\getmarking[test][top] and \getmarking[test][bottom]}
> \stopsetups

Thank you, Wolfgang! I'll wait for the next beta (and hope that the 
problem with xml entities will disappear too).

All best

Thomas
___________________________________________________________________________________
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maillist : ntg-context@ntg.nl / http://www.ntg.nl/mailman/listinfo/ntg-context
webpage  : http://www.pragma-ade.nl / http://tex.aanhet.net
archive  : http://foundry.supelec.fr/projects/contextrev/
wiki     : http://contextgarden.net
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