-
-;;(define (reduce operator list)
-;; (if (null? (cdr list)) (car list)
-;; (operator (car list) (reduce operator (cdr list)))))
-
-
-
-; Make a function that checks score element for being of a specific type.
-(define (make-type-checker symbol)
- (lambda (elt)
- ;;(display symbol)
- ;;(eq? #t (ly-get-elt-property elt symbol))
- (not (eq? #f (memq symbol (ly-get-elt-property elt 'interfaces))))))
-
-
-(define (index-cell cell dir)
- (if (equal? dir 1)
- (cdr cell)
- (car cell)))
-
-(define (repeat-name-to-ctor name)
- (let*
- ((supported-reps
- `(("volta" . ((iterator-ctor . ,Volta_repeat_iterator::constructor)
- (length . ,Repeated_music::volta_music_length)))
- ("unfold" . ((iterator-ctor . ,Unfolded_repeat_iterator::constructor)
- (length . ,Repeated_music::unfolded_music_length)))
- ("fold" . ((iterator-ctor . ,Folded_repeat_iterator::constructor)
- (length . ,Repeated_music::folded_music_length)))
- ("tremolo" . ((iterator-ctor . ,Chord_tremolo_iterator::constructor)
- (length . ,Repeated_music::unfolded_music_length)))))
-
- (handle (assoc name supported-reps)))
-
- (if (pair? handle)
- (cdr handle)
- (begin
- (ly-warn
- (string-append "Unknown repeat type `" name "'\nSee scm/lily.scm for supported repeats"))
- '(type . 'repeated-music)))))