Hi, Thanks for your suggestion!
I have been looking at edition-engraver and I tried to come up with something which mimics what edition-engraver is doing. That something however crashes Lilypond with a segmentation fault. As I am doing my analysis on the finalize event, I can only add the markup after the analysis in the same event. In the edition-engraver this is done in the process-music part of the engraver, which might be causing my issue. What I did is take the bit of code I found which matches attaching a form of text script to some other music event (found at https://github.com/openlilylib/edition-engraver/blob/master/engine.scm#L924). I use an object property to add an error message to the wrapper alist I use for my bookkeeping, which also contains a reference to the original event. Then immediately after the processing I run through my event list (filtered for only note events), detect whether an error-msg property value is set, then try to create the text script event and use the music cause from the original event. The code used: (for-each (lambda (note) (if (not (equal? #f (error-msg note))) (let ( (grob (ly:engraver-make-grob trans 'TextScript (ly:make-stream-event 'text-script-event `((origin . ,(assoc-ref note 'origin)) (music-cause . ,(ly:event-property (assoc-ref note 'event) 'music-cause))))))) (ly:grob-set-property! grob 'text (markup (error-msg note))) )) ) (filter (lambda (x) (equal? (assoc-ref x 'type) 'note)) (reverse eventList))) However this causes Lilypond to segfault. Any clue what I am doing wrong here? Is this perhaps because the trans provided in the finalize is different from the one given to process-music? Could it be that this code running in the Score context is the problem? Thanks in advance! cheers Maurits > Op 16 feb. 2018, om 14:54 heeft Kieren MacMillan > <kieren_macmil...@sympatico.ca> het volgende geschreven: > > Hi Maurits, > > Have you looked at how the edition-engraver works? I use it to add markup to > my scores all the time. Either you can use it as is, or perhaps the code will > give you hints as to how to tweak your Scheme code to get the desired effect. > > Hope that helps! > Kieren. > ________________________________ > > Kieren MacMillan, composer > ‣ website: www.kierenmacmillan.info > ‣ email: i...@kierenmacmillan.info > _______________________________________________ lilypond-user mailing list lilypond-user@gnu.org https://lists.gnu.org/mailman/listinfo/lilypond-user
