That works for my purposes; thank you for letting me know about it!
Joey
On Sun, Aug 15, 2021 at 1:53 AM Aditya Mahajan via ntg-context <
ntg-context@ntg.nl> wrote:
> On Sun, 15 Aug 2021, Joey McCollum via ntg-context wrote:
>
> > Hi,
> >
> > I'm trying to implement a section break marker in a grid layout. At a
> > section break, two lines of space should separate the subsequent segments
> > of text (just plain paragraphs, in this case), and a symbol (in the
> example
> > below, "X") should be set in the middle of these two lines. For my
> > purposes, the section break symbol should never occur at the top of a
> page
> > or column, and it is more desirable to have a page or column end with the
> > section break symbol than to have a single orphaned line follow the
> symbol
> > at the end of the page or column. Based on these constraints, I thought
> > that using the "samepage" and "preference" options for the first and
> second
> > line breaks would work nicely:
> >
> > ```
> > \define\SectionBreak{%
> > \blank[halfline, samepage]% non-breaking to ensure that no column
> > begins with the section break symbol
> > \startalignment[middle]%
> > {X}% section break symbol
> > \stopalignment%
> > \blank[halfline, preference]% this can (and, if possible, should) be
> > broken across a column
> > ```
> >
> > This does successfully prevent the placement of the symbol at the top of
> a
> > page/column, but it doesn't encourage the placement of the symbol at the
> > end of a page/column as often as I would like.
>
> Depending on what you want, you can try adding \testpage[n] (where n is a
> number). This checks if the remainder of the page has enough space for n
> lines; if not, then it issues a page-break.
>
> Aditya
>
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