Re: Macros

[Han-Wen]

address@hidden writes:
> > Often, you can do this in Lilypond without any ifdefs or
> > preprocessor. Just define the additional information using
> > a separate identifier and make two or more \score{} definitions
> > including different amount of information.
> 
> The difference is when the differences are not additions, but modifications, 
> like in this case: changing c\footnote{} to cis does not only remove the 
> footnote, but it also changes the c to a cis. This can still be solved with 
> the current lilypond, using something like
> 
> diffA = \notes {c8\footnote{..}}
> \include "score.ly"
> diffA = \notes {cis8}
> \include "score.ly"
> 
> where score.ly contains something like
> \score{ \notes {a8 b \diffA d}}
> 
> However, I feel that this is too clumsy to be practical in larger scale (the 
> source will be hard to follow and hard to write), hence it could be 
> considered useful to add a more sophisticated system with \define.

The real issue is whether you can embed these directions and
alternatives in a nicely hierarchical way. If yes, then you can do
various things with Scheme functions and \apply. 

-- 

Han-Wen Nienhuys   |   address@hidden   |   http://www.cs.uu.nl/~hanwen