On 2022-12-20 14:31, Pawel Urbanski via ntg-context wrote:
Hi,
Let me clarify my question more...
I need to attach some value to a chapter in that key. That custom
prefix + the value in the key is ment to be in the header or a footer
as a matter of fact. The case can apply to both headers and footers.
I tried:
\chapter[title={A sample title}][custom_random={custom_value}]
\setupheadertexts[{Prefix: \structureuservariable{custom_random}}]
...
\stopchapter
I tried this code when trying to figure out the mechanism. The prefix
string in placed in the header, but hte custom value of the attached
key is not expanded..
Evey page will contain just one section started by a \startchapter and
\stop chapter. I would like to put this custom attached value in the
right slot in the document header.
I hope that htis time around htigs are more clear.
On Tue, Dec 20, 2022 at 8:13 PM Henning Hraban Ramm via ntg-context
<ntg-context@ntg.nl> wrote:
Am 20.12.22 um 19:44 schrieb Pawel Urbanski via ntg-context:
> Dear Friends,
> I s-- pent some time searching and coding simple documents, but
failed and
> therefore I'm asking for help...
> A section such as chapter cn have custom keys with values. One
uses the:
> \structureuservariable command to access such values.
> How can I use such a value to create a custom header in a format:
> Prefix: \structureuservariable{foo}
>
> I am asking for the only thing that worked when I tried was
calling the:
> \setupheadertexts command inside a chapter environment block
with some
> prefix. Unfortunately the value from the custom field was not
expanded.
> It was correctly inserted in a regular paragraph.
> For example:
> \startchapter
> [title={A sample title}][custom_something={random_value}]
> ...
> \stopchapter
>
> How can I put the value of: custom_something in the header with
some prefix?
\define[2]\MyChapter{No.#1 – Prefix
\structureuservariable{custom_something}: #2}
\setuphead[chapter][
command=\MyChapter,
]
Is this what you meant?
Hraban
Perhaps:
\setuppagenumbering[alternative=doublesided,location=bottom]
\startsetups chapter:headings
\doifsomethingelse{\structureuservariable{custom}}
{\setupheadertexts[RI]
[Prefix:
\structureuservariable{custom}]
[Prefix:
\structureuservariable{custom}]
[VO]}
{\setupheadertexts[RI][RO][VO][VI]}
\stopsetups
\setuphead[chapter]
[style=\tfa,
after={\blank\setups{chapter:headings}},
]
\starttext
\startchapter[title=Nothing special]
\dorecurse{10}{\input knuth\par}
\stopchapter
\startchapter[title=Something special][custom={Hi there!}]
\dorecurse{10}{\input knuth\par}
\stopchapter
\startchapter[title=More nothing special]
\dorecurse{10}{\input knuth\par}
\stopchapter
\startchapter[title=More something special][custom={Bye Bye!}]
\dorecurse{10}{\input knuth\par}
\stopchapter
\stoptext
--
Rik
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