[NTG-context] Re: Clipping headers

14 Mar 2025

      The \start/\stop section alternative works nicely. Thanks!

I was trying to work on an automated solution consisting of three parts:
1) Define a new marking which processed normal section title marking
2) Check width to see if we need to apply clipping and add "..."
3) Performing clipping

Here are my unsuccessful attempts for 3:

% clips width correctly but descenders are also removed
\clip[width=3cm]{Long Title for Section Four}
% does not work with \dimexpr (expansion issue?)
\setbox0\hbox{Long Title for Section Four}
\clip[width=3cm,height=\the\dimexpr\ht0+\dp0\relax]{\box0}
% but this one works
\setbox0\hbox{Long Title for Section Four}
\clip[width=3cm,height=18pt}{\box0}

On Fri, Mar 14, 2025 at 11:42 AM Duncan Hothersall  wrote:
...
Sorry, as I said it was untested, but it certainly used to work on older
versions of ConTeXt. I guess \nomarking has been deprecated and this should
be noted on the wiki? Or is there still an equivalent command (as opposed
to requiring the shift to \startsection / \stopsection)?
On Fri, 14 Mar 2025 at 15:09, Mohammad Hossein Bateni 
wrote:
...
I get an undefined command error. Does it work on your machine?
On Fri, Mar 14, 2025 at 10:43 AM Duncan Hothersall  wrote:
...
Untested but this should work:
\section{This title is long \nomarking{enough to cause problems in the
headers and footers}}
Everything inside \nomarking{} will not be shown in the headers or
footers.
See https://wiki.contextgarden.net/Command/nomarking
Duncan
On Fri, 14 Mar 2025 at 14:33, Mohammad Hossein Bateni 
wrote:
...
Hello,
How can I clip long markings in the header?
See this MNWE, where the two copies of section title collide on page 3.
---------------
\starttext
\setupbodyfont[20pt]
\setupheadertexts[section][section]
\section{One}
\section{Two}
\page
\section{Three}
\page
\section{Long Title for Section Four}
\page
\section{Five}
\stoptext
------------
How can I clip the title to a fixed length (5cm?) and perhaps add "..."
at the end for longer titles?
Is it possible to provide an alternative shorter section title within
\section?
Thanks,
Mohammad
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If your question is of interest to others as well, please add an entry to
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