Re: \setupheadertexts for chapters with different authors

[jbf via ntg-context <ntg-context@ntg.nl>]

Thanks for the bits and pieces to the puzzle. I'll do my best to make 
sense of them and solve the problem.

Julian

On 19/3/22 20:18, Henning Hraban Ramm via ntg-context wrote:
> Hi Julian,
>
> you’re right, the example didn’t do what you wanted, and it didn’t 
> intend to.
>
> Using \getmarking you can get a section title (or another “mark”), you 
> can’t combine it with the variable commands, and you don’t need it for 
> your case.
>
> https://wiki.contextgarden.net/Command/getmarking isn’t really helpful 
> since there’s no example with section titles, but it shows you can 
> also get previous or next “marks”.
>
> BTW, I can’t remember when you need \structurevariable vs. 
> \namedstructurevariable...
>
> Hraban
>
>
> Am 19.03.22 um 03:16 schrieb jbf via ntg-context:
>> I might need a little more help just to understand how best to adapt 
>> this to my situation:
>>
>> One thing is clear: I was attempting to use a 'list' variable, and I 
>> can see why that was an error, since it is headertexts, not TOC that 
>> I want to influence.
>>
>> But let me simplify my situation:
>>
>> You seem to suggest initially that I could use \structureuservariable 
>> (or \structurevariable) instead, especially since I already have a 
>> variable to call on, e.g \startchapter[title={My title}][author={A. 
>> uthor}]. But in the example you then gave, you made no use of either 
>> of these.
>>
>> My current setting is:
>>
>> \setupheadertexts   [{\hfill\getmarking[chapter]\hfill}][] 
>> [{\hfill\documentvariable{metadata:title}\hfill}][]
>>
>> which gives me the book title centred on verso pages, and the chapter 
>> title centred on recto pages. All I want to do is to have the chapter 
>> contributors' name for each chapter instead of the chapter title.
>>
>> So why can't I create a setups along the lines of:
>>
>> \startsetups[contributor] \getmarking[\structureuservariable{author}] 
>> \stopsetups
>>
>> Then just swap 'chapter' in \setupheadertexts, with 'contributor'? I 
>> tried it but it doesn't work. I thought it would be logical. Clearly 
>> I'm wrong but don't appreciate why.
>>
>> Julian
>>
>> On 18/3/22 18:52, Henning Hraban Ramm via ntg-context wrote:
>>> The *list* variables work only in lists.
>>>
>>> There’s also \structurevariable and \structureuservariable.
>>>
>>> Make sure you use setups for the header, otherwise the variable gets 
>>> expanded only once at the beginning.
>>>
>>> Like in:
>>>
>>> \setuppagenumbering[alternative=doublesided]
>>> \setupheadertexts[] % empty
>>> \setupheadertexts[\setups{text right}][][][\setups{text left}]
>>>
>>> \startsetups[text right]
>>> \rlap{\pagenumber}
>>> \hfill
>>> \getmarking[chapter]
>>> \hfill
>>> \llap{Un Nom}
>>> \stopsetups
>>>
>>> \startsetups[text left]
>>> \rlap{Una Person}
>>> \hfill
>>> \getmarking[section]
>>> \hfill
>>> \llap{\pagenumber}
>>> \stopsetups 
>>
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