[Denemo-devel] Operations on the selection

[Richard Shann]

I've refined the working of d-NextSelectedObject to step over the
appending position (and changed the semantics of d-GetType when in that
position). This means you can now iterate over objects in the selection.
As an example, here is a script that peppers a score with EighthRests,
putting one after every note/rest in the selection.
A fairly useless activity, but it outlines what can be done. Note that
it starts on the second note of the selection - an initialization would
be needed to avoid this.
Script follows
Richard
;;;;;;; script to pepper a score with rests...
(define isChord (lambda ()
                  (string=? (d-GetType) "CHORD")))

(define NextChordInSelection (lambda () (if (d-NextSelectedObject) 
                                            (if (isChord)
                                                 #t
                                                 (NextChordInSelection))
                                            #f
                                            )))
(define pepper (lambda ()

(if (NextChordInSelection)
    (begin (d-InsertEighthRest)
        (pepper))
)))
(d-GoToMark)
(pepper)