Re: [patch] top level page breaking directives

[Mats Bengtsson]

Great! Would it even be possible to use the same page breaking directives
everywhere, both at top-level and within scores? (I don't know anything
about the implementation, but it would be great if users didn't have to 
remember several different directives to use in different situations).

  /Mats

Quoting Nicolas Sceaux <address@hidden>:

> Han-Wen, Joe,
>
> Here is a patch which implements top-level page breaking directives, for
> instance:
>
>  %% these two markups must be on the same page
>  \markup { ... }
>  \forbidPageBreak
>  \markup { ... }
>
>  %% the markup and the score must be on the same new page
>  %% that is, same as \header { breakbefore=##t } in the score block
>  \forcePageBreak
>  \markup { ... }
>  \forbidPageBreak
>  \score { ... }
>
> Sketch:
>
> - \forbidPageBreak and \forcePageBreak are music expressions with
>   special properties, and are turned into Page_markers by
>   collect-music-for-book;
>
> - then, the Page_markers are added to the Book scores_ (together with
>   the scores and markups);
>
> - finally, when the Paper_book meet such an element when traversing the
>   Book scores_, it sets the previous element page break and page turn
>   permissions, according the Paper_marker settings.
>
> I'd be grateful if you could review this patch.
> (I'm working on regression tests and documentation).
>
> nicolas