Am Do., 1. Jan. 2026 um 14:37 Uhr schrieb Dan Eble <[email protected]>: > > On 2025-12-31 05:42, Thomas Morley wrote: > > At least for automatic repeats 'volta settings are entirely missing, why? > > Automatic repeats were enhanced to handle nested alternatives. Manual > repeats were not. > > Volta_engraver gets information about the music structure from > volta-span-event: > > void > Volta_engraver::boot () > { > ADD_ACKNOWLEDGER (bar_line); > ADD_LISTENER (dal_segno); > ADD_LISTENER (fine); > ADD_LISTENER (volta_span); //<<<<<<<<<<<< > } > > For backward compatibility, Volta_engraver also reads the repeatCommands > context property and creates brackets that have a fixed relationship > with automatic brackets. This is one reason why the "Manual repeat > marks" section of the NR begins with a cautionary note. > > I haven't reviewed your custom engraver, but an engraver concerned with > repeat structure might listen for some of these events in addition to > volta-span-event (from define-event-classes.scm): > > (structural-event . (alternative-event > coda-mark-event > dal-segno-event > fine-event > section-event > segno-mark-event > volta-repeat-end-event > volta-repeat-start-event)) > > Summary: Engravers handling repeat structure should listen for events. > If there is good reason to support the repeatCommands interface, they > should also read repeatCommands, but repeatCommands does not support the > same range of uses as automatic repeats. > -- > Dan >
Well, its not my engraver..., I may try to rewrite it, though. Thanks for the insights, Harm
