Re: Problem with heading appearing on new chapter page

[Gavin Smith]

On Wed, May 13, 2020 at 04:42:03PM +0200, Sebastian Urban wrote:
> >> Alright, it seems that it affects only custom settings,
> >> (...)
> >> it doesn't happen with only "@headings double" after title page.
> >
> > I managed to get the same result (by editing the *.toc file to end on an
> > odd page).  Note that the headings are correct for the page numbers as
> > printed - the only problem is the mismatch between the page numbers in
> > the file and the printed page numbers in that when one is odd, the other
> > is even, and vice versa.
> 
> And this mismatch causes the heading style, that should be on
> right-hand page, to be on left-hand page, and vice versa.
> 
> > If somebody was actually printing the manual on paper, they would
> > have to use some other tool to insert a blank page into the document
> > after the table of contents and before the page numbered "1".
> 
> Or...
> 
>  ...
>  @end titlepage
> 
>  @evenheading @thispage @| @|
>  @oddheading @| @| @thispage
> +@tex
> +\global\let\contentsalignmacro = \chapoddpage
> +@end tex
> 
>  @summarycontents
>  @contents
> 
>  @headings double
>  ...
> 
> I don't know if this is the best command to use, but it seems to work,
> i.e. it adds the needed blank page.

Another way is to use

@headings double
@evenheading @thispage @| @|
@oddheading @| @| @thispage

as @evenheading and @oddheading don't change the value of 
\contentsalignmacro.  This would avoid hooking into internal 
definitions.

It would be easy to always start page 1 on an odd page in the document 
after the contents, and sometimes have an blank page.  This would also 
eliminate another potential problem: if "@headings doubleafter" is used 
later on in a document, then odd printed page numbers would match with 
odd pages in the document.  However, it's not great to have a blank page 
there if you are just reading a PDF on a computer.  If only the 
"@headings" command had never been invented; I doubt it is used much, 
and the manual says it is rarely used.

My preferred solution at the moment is to blank the document title in 
the contents automatically, and to only encourage customising the 
headings/footings (with @setchapternewpage, @headings or @*heading or 
@*footing) at the very start of the document, or right after the title 
page.  I'll look at the patch you sent.

I don't know why @headings doubleafter/singleafter were invented.  They 
were present in texinfo.tex version 2.72 from 1991.  The only older 
version of texinfo.tex I can check is 1.26 from 1988, where it wasn't 
present.  The main difference is from @headings double/single is that 
the page number is not reset to 1.