On Mon, Dec 15, 2025 at 01:04:22AM +0100, Patrice Dumas wrote:
> > 3. Headings in the unnumbered chapters following the appendix, seem to
> > lag behind. See pp. 7-8, 11-2.
>
> Indeed, I see those two issues. It is somewhat strange that the first
> one corresponds to headings anticipating, while the second one
> corresponds to headings lagging...
>
> There seems to be some information on marks on the internet that could
> be related to these issues. On the other hand, the documentation of
> titleps, which is the package used in LaTeX generated code seems to
> imply that this issue should not be present with the package.
>
> In any case, I do not know TeX/LaTeX enough to be able to fix those
> issues.
Regarding the second issue, the problem seems to be that the starred
variant (\chapter*) is used for @unnumbered:
\newcommand{\Texinfounnumberedchapter}[1]{\chapter*{#1}
\addcontentsline{toc}{chapter}{\protect\textbf{#1}}%
\renewcommand{\Texinfothechapterheading}{\Texinfoplaceholder}%
The * form shows title on a fresh line, in boldface. But it does not show
the chapter number, does not increment the chapter counter, produces no
table of contents entry, and does not affect the running header. (If you
use the page style headings in a two-sided document then the header will
be from the prior chapter.)
https://latexref.xyz/_005cchapter.html
I found using the \chaptermark command gave better results, although
it wasn't perfect (the heading line was sometimes blank):
\newcommand{\Texinfounnumberedchapter}[1]{\chapter*{#1}
\addcontentsline{toc}{chapter}{\protect\textbf{#1}}%
\chaptermark{#1}%
\renewcommand{\Texinfothechapterheading}{\Texinfoplaceholder}%
However, the documentation of \chaptermark in titleps/titlesec is very
rudimentary and I'm not sure if it's the right command to use.
