Re: Implementing reliable cross-staff stems

[Pavel Roskin]

Quoting "address@hidden" <address@hidden>:

> You can use Scheme engravers.  I use them for exactly this sorta thing.
>
> input/regression/scheme-engraver.ly in the source code for LilyPond   
> (you can google this file to find it on a few servers).

Thank you for your reply!  Frankly, I don't understand a thing in that  
file.  I guess I need to learn Scheme for real rather than rely on the  
bits in Lilypond documentation.

But it's good to know of a place where I can look for ideas.  I didn't  
want to delve inside Lilypond sources, as I only wanted to rely on  
documented interfaces.  The test suite may lie somewhere in between,  
so maybe I'll find some ideas there.

Speaking of my problem, it looks like I need to find the grob for the  
pianostaff.  The pianostaff context doesn't seem to have information  
about the actual layout of the staves in a particular place.

--
Regards,
Pavel Roskin