On 7/5/2025 12:19 PM, John Was wrote:
> Hello
>
> A long-cherished desideratum is automatic prohibition of hyphenation at
> the end of a recto page (except for split footnotes, where this is
> actually quite helpful in forcing the reader to complete the note on the
> following verso).  That was always disallowed at OUP (but allowed at the
> end of a verso).
>
> I've never managed this in plain TeX, so that at the last moment I
> scroll through the odd-numbered pages putting words in an \hbox if the
> unwanted hyphen has happened (and one then has to keep an eye out for
> the rare case where paragraph reflow throws up another problem).

{\nohyphens ...} ... plenty no* commands like \noligaturing, \nokerning
that can work local

> Is this feasible in ConTeXt?

Widow, club and broken penaltiesa can be different for left and right
pages and are controlled by keywords like "less.." and "strict.." and
"default.." and some also have granularity

[less|strict|default][widows|clubs|broken|orphans][:[2|3|4]]

see spac-ver.mkxl around 520

so you can do

\setuplayout[lines=29]

% \setupalign[lessbroken]

\starttext
     \dorecurse{10}{\samplefile{tufte}\par}
\stoptext

The problem with all these features is that even if there is demand we
don't know about it and/or if it will ever be used. We just added things
like that when we enhanced the par and page builders and exploring
possibilities. There are all kind of goodies like that and you can set
up these panalties any way you like but it's not always easy to come up
with values that work well together. They are described in articles and
low level manuals.

Just for the record: in luametatex \widowpenalties and other array
variants (of \widowpenalty etc) accept options like repeating, addition,
left/right page alternatives. So it's something in the engine. In order
to not confuse the singular and plural variants, the singular ones are
overloaded in context to map onto the plural so that only one mechanism
kicks in. Technically we could just remove the singulars completely.

Hans

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