(make-procedure-with-setter ly:music-property
ly:music-set-property!))
+(define-safe-public (music-is-of-type? mus type)
+ "Does @code{mus} belong to the music class @code{type}?"
+ (memq type (ly:music-property mus 'types)))
;; TODO move this
(define-public ly:grob-property
(set! (ly:music-property music 'duration) nd)))
music))
-
-
(define-public (shift-duration-log music shift dot)
(music-map (lambda (x) (shift-one-duration-log x shift dot))
music))
+(define-public (make-repeat name times main alts)
+ "create a repeat music expression, with all properties initialized properly"
+ (let ((talts (if (< times (length alts))
+ (begin
+ (ly:warning (_ "More alternatives than repeats. Junking excess alternatives"))
+ (take alts times))
+ alts))
+ (r (make-repeated-music name)))
+ (set! (ly:music-property r 'element) main)
+ (set! (ly:music-property r 'repeat-count) (max times 1))
+ (set! (ly:music-property r 'elements) talts)
+ (if (equal? name "tremolo")
+ (let* ((dot? (zero? (modulo times 3)))
+ (dots (if dot? 1 0))
+ (mult (if dot?
+ (quotient (* times 2) 3)
+ times))
+ (shift (- (ly:intlog2 mult))))
+
+ (if (memq 'sequential-music (ly:music-property main 'types))
+ ;; \repeat "tremolo" { c4 d4 }
+ (let ((children (length (ly:music-property main 'elements))))
+ (if (not (= children 2))
+ (ly:warning (_ "expecting 2 elements for chord tremolo, found ~a") children))
+ (ly:music-compress r (ly:make-moment 1 children))
+ (shift-duration-log r (1- shift) dots))
+ ;; \repeat "tremolo" c4
+ (shift-duration-log r shift dots)))
+ r)))
+
;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;
;; clusters.
;; mmrest
(define-public (make-multi-measure-rest duration location)
- (make-music 'MultiMeasureRestMusicGroup
+ (make-music 'MultiMeasureRestMusic
'origin location
- 'elements (list (make-music 'BarCheck
- 'origin location)
- (make-event-chord (list (make-music 'MultiMeasureRestEvent
- 'origin location
- 'duration duration)))
- (make-music 'BarCheck
- 'origin location))))
-
-(define-public (glue-mm-rest-texts music)
- "Check if we have R1*4-\\markup { .. }, and if applicable convert to
-a property set for MultiMeasureRestNumber."
- (define (script-to-mmrest-text script-music)
- "Extract 'direction and 'text from SCRIPT-MUSIC, and transform MultiMeasureTextEvent"
- (let ((dir (ly:music-property script-music 'direction))
- (p (make-music 'MultiMeasureTextEvent
- 'text (ly:music-property script-music 'text))))
- (if (ly:dir? dir)
- (set! (ly:music-property p 'direction) dir))
- p))
-
- (if (eq? (ly:music-property music 'name) 'MultiMeasureRestMusicGroup)
- (let* ((text? (lambda (x) (memq 'script-event (ly:music-property x 'types))))
- (event? (lambda (x) (memq 'event (ly:music-property x 'types))))
- (group-elts (ly:music-property music 'elements))
- (texts '())
- (events '())
- (others '()))
-
- (set! texts
- (map script-to-mmrest-text (filter text? group-elts)))
- (set! group-elts
- (remove text? group-elts))
-
- (set! events (filter event? group-elts))
- (set! others (remove event? group-elts))
-
- (if (or (pair? texts) (pair? events))
- (set! (ly:music-property music 'elements)
- (cons (make-event-chord
- (append texts events))
- others)))
-
- ))
-
- music)
-
+ 'duration duration))
(define-public (make-property-set sym val)
(make-music 'PropertySet
(define-public (make-time-signature-set num den . rest)
"Set properties for time signature NUM/DEN. Rest can contain a list
of beat groupings "
+
+ (define (standard-beat-grouping num den)
+
+ "Some standard subdivisions for time signatures."
+ (let*
+ ((key (cons num den))
+ (entry (assoc key '(((6 . 8) . (3 3))
+ ((5 . 8) . (3 2))
+ ((9 . 8) . (3 3 3))
+ ((12 . 8) . (3 3 3 3))
+ ((8 . 8) . (3 3 2))
+ ))))
+
+ (if entry
+ (cdr entry)
+ '())))
+
(let* ((set1 (make-property-set 'timeSignatureFraction (cons num den)))
(beat (ly:make-moment 1 den))
(len (ly:make-moment num den))
(set3 (make-property-set 'measureLength len))
(set4 (make-property-set 'beatGrouping (if (pair? rest)
(car rest)
- '())))
+ (standard-beat-grouping num den))))
(basic (list set1 set2 set3 set4)))
(descend-to-context
(context-spec-music (make-sequential-music basic) 'Timing) 'Score)))
(define-public (set-time-signature num den . rest)
(ly:export (apply make-time-signature-set `(,num ,den . ,rest))))
-(define-safe-public (make-penalty-music pen page-pen)
- (make-music 'BreakEvent
- 'penalty pen
- 'page-penalty page-pen))
-
(define-safe-public (make-articulation name)
(make-music 'ArticulationEvent
'articulation-type name))
(cue-voice (if (eq? 1 dir) 0 1))
(main-music (ly:music-property quote-music 'element))
(return-value quote-music))
-
+
(if (or (eq? 1 dir) (eq? -1 dir))
;; if we have stem dirs, change both quoted and main music
(quoted-vector (if (string? quoted-name)
(hash-ref quote-tab quoted-name #f)
#f)))
+
(if (string? quoted-name)
- (if (vector? quoted-vector)
- (set! (ly:music-property music 'quoted-events) quoted-vector)
- (ly:warning (_ "can't find quoted music `~S'" quoted-name))))
+ (if (vector? quoted-vector)
+ (begin
+ (set! (ly:music-property music 'quoted-events) quoted-vector)
+ (set! (ly:music-property music 'iterator-ctor)
+ ly:quote-iterator::constructor))
+ (ly:warning (_ "can't find quoted music `~S'" quoted-name))))
music))
(define-public toplevel-music-functions
(list
(lambda (music parser) (voicify-music music))
- (lambda (x parser) (music-map glue-mm-rest-texts x))
(lambda (x parser) (music-map music-check-error x))
(lambda (x parser) (music-map precompute-music-length x))
(lambda (music parser)
(skip-to-last x parser)
)))
+
;;;;;;;;;;;;;;;;;
;; lyrics
projects / lilypond.git / blobdiff