Re: Discussion: Improved Scheme interface for finding contexts

[Jean Abou Samra]

Le 11/01/2022 à 23:12, Dan Eble a écrit :

On Jan 11, 2022, at 11:35, Jean Abou Samra <j...@abou-samra.fr> wrote:

(ly:context-find-id context)
    (No direction: there cannot be two contexts with the
    same ID, can there?  I cannot imagine

Allow me:

<<
   \new PianoStaff <<
     \new Staff = "RH" ...
     \new Staff = "LH" ...
   >>
   \new PianoStaff <<
     \new Staff = "RH" ...
     \new Staff = "LH" ...
   >>
Another example is a user who uses \partCombine in more than one Staff.  There 
will be multiple Voices with the same ID because they are baked into the 
implementation:

      #{ \context Staff <<
           \context Voice = "one" \with #one-context-settings { #skip }
           \context Voice = "two" \with #two-context-settings { #skip }
           \context Voice = "shared" \with #shared-context-settings { #skip }
           \context Voice = "solo" { #skip }
           \context NullVoice = "null" { #skip }
           #pc-music
           #(make-part-combine-marks
             default-part-combine-mark-state-machine split-list)
         >> #} ))

Ah, ok. Seems like I misunderstood the whole
concept of having context IDs...

Thanks for correcting me.

Regards,
Jean