[texhax] Calculate remaining space after a page break and a \penalty of 10000

Wolfgang Lorenz wl-chmw at gmx.de
Fri Nov 12 21:29:25 CET 2010

Am 12 Nov 2010 11:32:44 -0800
schrieb Donald Arseneau <asnd at triumf.ca>:

> Until there is a possible breakpoint, \pagetotal may not
> include the most recent contributions.  You have to give
> a breakpoint, even \penalty9999, to get an accurate 
> \pagetotal.

Thank you, I didn't know this...

> Since you are worried about being after section titles,

I am worried about any content that may occur, with a penalty of 10000.
The section titles were only meant as an example, because in the
document I am working on the lyrics may come directly after a section
change. But I'd like the package to behave more generally.

> I recommend a heuristic:  
> Record \pagetotal (call it \subtotal)
> check \if at nobreak to see if breaks are forbidden
> For no-break case, choose to introduce a \penalty9999
> only if \subtotal is well short of a page, say .75\pagegoal
> For the else case, always give \penalty9999
> Finally, check the real pagetotal.

I've thought about leaving it up to the user to limit the space
bbLyrics is using for the "first page", but that would be a hack I'd
rather not implement. If all else fails, this will be the way I go,

Thanks for your suggestions!

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