On Mon, Dec 15, 2025 at 08:38:48PM +0000, Gavin Smith wrote:
> The first issue appears to be easily fixable by adding a single line
> to the output file:
>
> \newtitlemark{\Texinfoheadingchaptername}%
Shouldn't \newtitlemark be called for \Texinfothechapterheading too?
> The existing output of "Chapter" or "Appendix" in the heading is completely
> wrong: TeX often continues to process output for a following page before
> the current page has been finalised, as it has not decided at which point
> to break the page. This means definitions for the following pages may
> be active at the point in time the page is output, which is when the headings
> are set. The "marks" mechanism of TeX exists for exactly this problem.
>
> I haven't read the titleps documentation in any detail and am not familiar
> with how the marks mechanism may differ in LaTeX and/or titleps from plain
> TeX. However, the main fact you need to understand is that the definitions in
> a mark stay with the mark's location on a page. This means these definitions
> can be retrieved after a page breaking decision is made and the heading
> line is output, even if subsequent redefinitions are made in marks on later
> pages.
Having read some web information, I understood the theory behind the
marks, that you aptly summarized. However, the practical way to use
marks is completly lost on me, and all the documentation I have read on
that is still very obscure to me. I do not understand what the mark
commands actually do, what their arguments should be, how to call them,
where they should be set and so on and so forth.
I see two other commands that may need some marks, \Texinfotheinclude,
which could easily become wrong if there are @includes before and after
the end of a page. And also possibly \Texinfoparttitle, although there
are end of pages before and after \part.
--
Pat
