Am 01.03.2018 um 18:31 schrieb Stefano Troncaro:
...
@Urs, I not familiar with \with blocks, I'll take a look at the
oll-core code and experiment a bit with it. Maybe I'll be able to help.
Look at
https://github.com/openlilylib/scholarly/blob/master/usage-examples/annotate.ly
to see an example for the syntax.
Actually this does what you want: an unlimited number of optional
arguments.
%%%
\version "2.19.80"
#(define (context-mod->props mod)
(map
(lambda (prop)
(cons (cadr prop) (caddr prop)))
(ly:get-context-mods mod)))
myVariableFunc =
#(define-void-function (opts mus)((ly:context-mod? #f) ly:music?)
(let ((props
(if opts
(context-mod->props opts)
'())))
(for-each (lambda (prop)
(ly:message "Option '~a': '~a'" (car prop) (cdr prop)))
props)
mus))
\relative {
c' d e f
\myVariableFunc \with {
first = "Hello"
second = 124
third = #'((a . red)(b . blue))
fourth = #(ly:version)
fifth = #display
} g1
}
%%%
Note that instead of defining context-mod->props you could include
"oll-core/package.ily" (or rather: if you have included anything from
OLL you can simply use that procedure.
HTH
Urs
_______________________________________________
lilypond-user mailing list
lilypond-user@gnu.org
https://lists.gnu.org/mailman/listinfo/lilypond-user
