Re: Cf. Hofstadter's Law

[Rune Zedeler]

Han-Wen Nienhuys wrote:

> I don't know precisely: in what cases do you absolutely need to
> postpone the grob creation step to stop_translation_timestep ()?  

Problem is: You don't know that before stop_translation_timestep.
The problematic cases is when an accidental depends on a simultainous 
acc in another staff: In \context PianoStaff < c cis > the c needs to 
get a natural because of the cis in the other staff. In the 
process_acknowledged_grobs phase of the first staff the second staff has 
not yet been interpreted and hence YOU DON'T KNOW whether a cis (or ces 
or whatever) will occur in that staff.
This is true for all notes. Even though in 99,999% of the cases no cis 
will appear in the other staves so that no accidentals are needed. But 
you don't KNOW it before you have interpreted all staves - in the 
stop_translation_timestep phase.


-Rune