Am Fr., 1. Nov. 2019 um 15:34 Uhr schrieb Karsten Reincke <[email protected]>:
> does anyone has / know about an example of a define-markup-command > implementation > using a variable number of arguments / parameters? Nope, optional arguments are not possible using define-markup-command. > Unfortunately, in my system (Linux Ubuntu 19.10 with Lilypond 2.18...) the > normal > GUILE / scheme syntax (define (x y . args) ) (doanythingwith args) ) seems to > executable. > > The tutorial LilyPond Extending mentions that there exist such an opportunity > (page 19.), but does not contain any example. The section of the Extending-tutorial refers to functions, not to the define-markup-command which is a macro. (At least if I've identified the section you refer to correctly, I usually use the big-page-html-version of the docs.) You could go for properties (see define-markup-commands.scm), but the syntax in coding and calling it differs ofcourse and you may encounter unwished side-effects (if namings interfer with grob-properties). For variable amount of args I'd go for list? (or the like) and let the body of your code sort it out. Cheers, Harm
