1 ;;; define-music-display-methods.scm -- data for displaying music
2 ;;; expressions using LilyPond notation.
4 ;;; Copyright (C) 2005--2014 Nicolas Sceaux <nicolas.sceaux@free.fr>
7 ;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;
9 ;;; Display method implementation
12 (define-module (scm display-lily))
17 (define (scheme-expr->lily-string scm-arg)
18 (cond ((or (number? scm-arg)
21 (format #f "~s" scm-arg))
22 ((or (symbol? scm-arg)
24 (format #f "'~s" scm-arg))
27 (or (procedure-name scm-arg)
28 (with-output-to-string
30 (pretty-print (procedure-source scm-arg)))))))
33 (with-output-to-string
35 (display-scheme-music scm-arg)))))))
40 (define-public (markup->lily-string markup-expr)
41 "Return a string describing, in LilyPond syntax, the given markup
43 (define (proc->command proc)
44 (let ((cmd-markup (symbol->string (procedure-name proc))))
45 (substring cmd-markup 0 (- (string-length cmd-markup)
46 (string-length "-markup")))))
47 (define (arg->string arg)
50 ((markup? arg) ;; a markup
51 (markup->lily-string-aux arg))
52 ((and (pair? arg) (every markup? arg)) ;; a markup list
53 (format #f "{~{ ~a~}}" (map-in-order markup->lily-string-aux arg)))
54 (else ;; a scheme argument
55 (format #f "#~a" (scheme-expr->lily-string arg)))))
56 (define (markup->lily-string-aux expr)
59 (let ((cmd (car expr))
61 (if (eqv? cmd simple-markup) ;; a simple markup
62 (format #f "~s" (car args))
63 (format #f "\\~a~{ ~a~}"
65 (map-in-order arg->string args))))))
66 (cond ((string? markup-expr)
67 (format #f "~s" markup-expr))
68 ((eqv? (car markup-expr) simple-markup)
69 (format #f "~s" (second markup-expr)))
71 (format #f "\\markup ~a"
72 (markup->lily-string-aux markup-expr)))))
78 ;; It is a pity that there is no rassoc in Scheme.
79 (define* (rassoc item alist #:optional (test equal?))
80 (do ((alist alist (cdr alist))
82 ((or result (null? alist)) result)
83 (if (and (car alist) (test item (cdar alist)))
84 (set! result (car alist)))))
86 (define-public (note-name->lily-string ly-pitch parser)
87 ;; here we define a custom pitch= function, since we do not want to
88 ;; test whether octaves are also equal. (otherwise, we would be using equal?)
89 (define (pitch= pitch1 pitch2)
90 (and (= (ly:pitch-notename pitch1) (ly:pitch-notename pitch2))
91 (= (ly:pitch-alteration pitch1) (ly:pitch-alteration pitch2))))
92 (let ((result (rassoc ly-pitch (ly:parser-lookup parser 'pitchnames) pitch=)))
97 (define-public (octave->lily-string pitch)
98 (let ((octave (ly:pitch-octave pitch)))
100 (make-string (1+ octave) #\'))
102 (make-string (1- (* -1 octave)) #\,))
108 (define*-public (duration->lily-string ly-duration #:key (prev-duration (*previous-duration*))
109 (force-duration (*force-duration*))
110 (time-scale (*time-scale*))
112 (if remember (*previous-duration* ly-duration))
113 (let ((log2 (ly:duration-log ly-duration))
114 (dots (ly:duration-dot-count ly-duration))
115 (scale (ly:duration-scale ly-duration)))
116 (if (or force-duration (not prev-duration) (not (equal? ly-duration prev-duration)))
117 (string-append (case log2
121 (else (number->string (expt 2 log2))))
122 (make-string dots #\.)
123 (let ((end-scale (/ scale time-scale)))
124 (if (= end-scale 1) ""
125 (format #f "*~a" end-scale))))
132 (define (post-event? m)
133 (music-is-of-type? m 'post-event))
135 (define* (event-direction->lily-string event #:optional (required #t))
136 (let ((direction (ly:music-property event 'direction)))
137 (cond ((or (not direction) (null? direction) (= CENTER direction))
138 (if required "-" ""))
139 ((= UP direction) "^")
140 ((= DOWN direction) "_")
143 (define-macro (define-post-event-display-method type vars direction-required str)
144 `(define-display-method ,type ,vars
146 (event-direction->lily-string ,(car vars) ,direction-required)
149 (define-macro (define-span-event-display-method type vars direction-required str-start str-stop)
150 `(define-display-method ,type ,vars
152 (event-direction->lily-string ,(car vars) ,direction-required)
153 (if (= START (ly:music-property ,(car vars) 'span-direction))
157 (define-display-method HyphenEvent (event parser)
159 (define-display-method ExtenderEvent (event parser)
161 (define-display-method TieEvent (event parser)
163 (define-display-method BeamForbidEvent (event parser)
165 (define-display-method StringNumberEvent (event parser)
166 (format #f "\\~a" (ly:music-property event 'string-number)))
169 (define-display-method TremoloEvent (event parser)
170 (let ((tremolo-type (ly:music-property event 'tremolo-type 8)))
171 (format #f ":~a" tremolo-type)))
173 (define-display-method ArticulationEvent (event parser) #t
174 (let* ((articulation (ly:music-property event 'articulation-type))
176 (case (string->symbol articulation)
180 ((staccatissimo) "!")
185 (format #f "~a~:[\\~;~]~a"
186 (event-direction->lily-string event shorthand)
188 (or shorthand articulation))))
190 (define-post-event-display-method FingeringEvent (event parser) #t
191 (ly:music-property event 'digit))
193 (define-post-event-display-method TextScriptEvent (event parser) #t
194 (markup->lily-string (ly:music-property event 'text)))
196 (define-post-event-display-method MultiMeasureTextEvent (event parser) #t
197 (markup->lily-string (ly:music-property event 'text)))
199 (define-post-event-display-method BendAfterEvent (event parser) #f
200 (format #f "\\bendAfter #~a " (ly:music-property event 'delta-step)))
202 (define-post-event-display-method HarmonicEvent (event parser) #f "\\harmonic")
203 (define-post-event-display-method GlissandoEvent (event parser) #f "\\glissando")
204 (define-post-event-display-method ArpeggioEvent (event parser) #f "\\arpeggio")
205 (define-post-event-display-method AbsoluteDynamicEvent (event parser) #f
206 (format #f "\\~a" (ly:music-property event 'text)))
208 (define-post-event-display-method StrokeFingerEvent (event parser) #f
209 (format #f "\\rightHandFinger #~a " (ly:music-property event 'digit)))
211 (define-span-event-display-method BeamEvent (event parser) #f "[" "]")
212 (define-span-event-display-method SlurEvent (event parser) #f "(" ")")
213 (define-span-event-display-method CrescendoEvent (event parser) #f "\\<" "\\!")
214 (define-span-event-display-method DecrescendoEvent (event parser) #f "\\>" "\\!")
215 (define-span-event-display-method EpisemaEvent (event parser) #f "\\episemInitium" "\\episemFinis")
216 (define-span-event-display-method PhrasingSlurEvent (event parser) #f "\\(" "\\)")
217 (define-span-event-display-method SustainEvent (event parser) #f "\\sustainOn" "\\sustainOff")
218 (define-span-event-display-method SostenutoEvent (event parser) #f "\\sostenutoOn" "\\sostenutoOff")
219 (define-span-event-display-method TextSpanEvent (event parser) #f "\\startTextSpan" "\\stopTextSpan")
220 (define-span-event-display-method TrillSpanEvent (event parser) #f "\\startTrillSpan" "\\stopTrillSpan")
221 (define-span-event-display-method StaffSpanEvent (event parser) #f "\\startStaff" "\\stopStaff")
222 (define-span-event-display-method NoteGroupingEvent (event parser) #f "\\startGroup" "\\stopGroup")
223 (define-span-event-display-method UnaCordaEvent (event parser) #f "\\unaCorda" "\\treCorde")
229 (define-display-method GraceMusic (expr parser)
230 (format #f "\\grace ~a"
231 (music->lily-string (ly:music-property expr 'element) parser)))
233 ;; \acciaccatura \appoggiatura \grace
234 ;; TODO: it would be better to compare ?start and ?stop
235 ;; with startAppoggiaturaMusic and stopAppoggiaturaMusic,
236 ;; using a custom music equality predicate.
237 (define-extra-display-method GraceMusic (expr parser)
238 "Display method for appoggiatura."
239 (with-music-match (expr (music
246 ;; we check whether ?start and ?stop look like
247 ;; startAppoggiaturaMusic stopAppoggiaturaMusic
248 (and (with-music-match (?start (music
255 span-direction START))))))
257 (with-music-match (?stop (music
264 span-direction STOP))))))
265 (format #f "\\appoggiatura ~a" (music->lily-string ?music parser))))))
268 (define-extra-display-method GraceMusic (expr parser)
269 "Display method for acciaccatura."
270 (with-music-match (expr (music
277 ;; we check whether ?start and ?stop look like
278 ;; startAcciaccaturaMusic stopAcciaccaturaMusic
279 (and (with-music-match (?start (music
286 span-direction START)))
291 grob-property-path '(stroke-style)
295 (with-music-match (?stop (music
301 grob-property-path '(stroke-style)
309 span-direction STOP))))))
310 (format #f "\\acciaccatura ~a" (music->lily-string ?music parser))))))
312 (define-extra-display-method GraceMusic (expr parser)
313 "Display method for grace."
314 (with-music-match (expr (music
321 ;; we check whether ?start and ?stop look like
322 ;; startGraceMusic stopGraceMusic
323 (and (null? (ly:music-property ?start 'elements))
324 (null? (ly:music-property ?stop 'elements))
325 (format #f "\\grace ~a" (music->lily-string ?music parser)))))
331 (define-display-method SequentialMusic (seq parser)
332 (let ((force-line-break (and (*force-line-break*)
334 (> (length (ly:music-property seq 'elements))
335 (*max-element-number-before-break*))))
336 (elements (ly:music-property seq 'elements))
337 (chord? (make-music-type-predicate 'EventChord))
338 (note-or-chord? (make-music-type-predicate 'EventChord 'NoteEvent
339 'LyricEvent 'RestEvent
341 (cluster? (make-music-type-predicate 'ClusterNoteEvent))
342 (note? (make-music-type-predicate 'NoteEvent)))
343 (format #f "~a~a{~v%~v_~{~a~^ ~}~v%~v_}"
347 (any cluster? (ly:music-property e 'elements)))))
351 (if (*explicit-mode*)
352 ;; if the sequence contains EventChord which contains figures ==> figuremode
353 ;; if the sequence contains EventChord which contains lyrics ==> lyricmode
354 ;; if the sequence contains EventChord which contains drum notes ==> drummode
355 (cond ((any (lambda (chord)
356 (any (make-music-type-predicate 'BassFigureEvent)
357 (ly:music-property chord 'elements)))
358 (filter chord? elements))
360 ((any (lambda (chord)
361 (any (make-music-type-predicate 'LyricEvent)
363 (ly:music-property chord 'elements))))
364 (filter note-or-chord? elements))
366 ((any (lambda (chord)
369 (not (null? (ly:music-property event 'drum-type)))))
371 (ly:music-property chord 'elements))))
372 (filter note-or-chord? elements))
374 (else ;; TODO: other modes?
377 (if force-line-break 1 0)
378 (if force-line-break (+ 2 (*indent*)) 1)
379 (parameterize ((*indent* (+ 2 (*indent*))))
380 (map-in-order (lambda (music)
381 (music->lily-string music parser))
383 (if force-line-break 1 0)
384 (if force-line-break (*indent*) 1))))
386 (define-display-method SimultaneousMusic (sim parser)
387 (parameterize ((*indent* (+ 3 (*indent*))))
388 (format #f "<< ~{~a ~}>>"
389 (map-in-order (lambda (music)
390 (music->lily-string music parser))
391 (ly:music-property sim 'elements)))))
393 (define-extra-display-method SimultaneousMusic (expr parser)
394 "If `sim' is an \afterGrace expression, return \"\\afterGrace ...\".
395 Otherwise, return #f."
396 ;; TODO: do something with afterGraceFraction?
397 (with-music-match (expr (music 'SimultaneousMusic
398 elements (?before-grace
399 (music 'SequentialMusic
400 elements ((music 'SkipMusic)
403 (format #f "\\afterGrace ~a ~a"
404 (music->lily-string ?before-grace parser)
405 (music->lily-string ?grace parser))))
411 (define-display-method EventChord (chord parser)
412 ;; event_chord : command_element
413 ;; | note_chord_element
415 ;; TODO : tagged post_events
416 ;; post_events : ( post_event | tagged_post_event )*
417 ;; tagged_post_event: '-' \tag embedded_scm post_event
419 (let* ((elements (append (ly:music-property chord 'elements)
420 (ly:music-property chord 'articulations)))
421 (chord-repeat (ly:music-property chord 'duration)))
424 (partition (lambda (m) (music-is-of-type? m 'rhythmic-event))
426 (lambda (chord-elements other-elements)
427 (cond ((pair? chord-elements)
428 ;; note_chord_element :
429 ;; '<' (notepitch | drumpitch)* '>" duration post_events
430 (let ((duration (duration->lily-string (ly:music-property
434 ;; Format duration first so that it does not appear on
436 (format #f "< ~{~a ~}>~a~:{~:[-~;~]~a~^ ~}"
437 (map-in-order (lambda (music)
438 (music->lily-string music parser))
441 (map-in-order (lambda (music)
444 (music->lily-string music parser)))
446 ((ly:duration? chord-repeat)
447 (let ((duration (duration->lily-string chord-repeat
449 (format #f "q~a~:{~:[-~;~]~a~^ ~}"
451 (map-in-order (lambda (music)
454 (music->lily-string music parser)))
457 ((and (= 1 (length other-elements))
458 (not (post-event? (car other-elements))))
459 (format #f (music->lily-string (car other-elements) parser)))
461 (format #f "< >~:{~:[-~;~]~a~^ ~}"
462 (map-in-order (lambda (music)
465 (music->lily-string music parser)))
466 other-elements))))))))
468 (define-display-method MultiMeasureRestMusic (mmrest parser)
469 (format #f "R~a~{~a~^ ~}"
470 (duration->lily-string (ly:music-property mmrest 'duration)
472 (map-in-order (lambda (music)
473 (music->lily-string music parser))
474 (ly:music-property mmrest 'articulations))))
476 (define-display-method SkipMusic (skip parser)
477 (format #f "\\skip ~a" (duration->lily-string (ly:music-property skip 'duration) #:force-duration #t)))
479 (define-display-method OttavaMusic (ottava parser)
480 (format #f "\\ottava #~a" (ly:music-property ottava 'ottava-number)))
483 ;;; Notes, rests, skips...
486 (define (simple-note->lily-string event parser)
487 (format #f "~a~a~a~a~a~a~:{~:[-~;~]~a~}" ; pitchname octave !? octave-check duration optional_rest articulations
488 (note-name->lily-string (ly:music-property event 'pitch) parser)
489 (octave->lily-string (ly:music-property event 'pitch))
490 (let ((forced (ly:music-property event 'force-accidental))
491 (cautionary (ly:music-property event 'cautionary)))
492 (cond ((and (not (null? forced))
494 (not (null? cautionary))
497 ((and (not (null? forced)) forced) "!")
499 (let ((octave-check (ly:music-property event 'absolute-octave)))
500 (if (not (null? octave-check))
501 (format #f "=~a" (cond ((>= octave-check 0)
502 (make-string (1+ octave-check) #\'))
504 (make-string (1- (* -1 octave-check)) #\,))
507 (duration->lily-string (ly:music-property event 'duration)
509 (if ((make-music-type-predicate 'RestEvent) event)
511 (map-in-order (lambda (event)
514 (music->lily-string event parser)))
515 (ly:music-property event 'articulations))))
517 (define-display-method NoteEvent (note parser)
518 (cond ((not (null? (ly:music-property note 'pitch))) ;; note
519 (simple-note->lily-string note parser))
520 ((not (null? (ly:music-property note 'drum-type))) ;; drum
521 (format #f "~a~a~{~a~}" (ly:music-property note 'drum-type)
522 (duration->lily-string (ly:music-property note 'duration)
524 (map-in-order (lambda (event)
525 (music->lily-string event parser))
526 (ly:music-property note 'articulations))))
529 ;; FIXME: { c4 c4 4 4 } must not be output as { c4 c 4 4 }
530 ;; quite tricky to do. Do it when outputting sequences?
531 (format #f "~a~{~a~}"
532 (duration->lily-string (ly:music-property note 'duration)
535 (map-in-order (lambda (event)
536 (music->lily-string event parser))
537 (ly:music-property note 'articulations))))))
539 (define-display-method ClusterNoteEvent (note parser)
540 (simple-note->lily-string note parser))
542 (define-display-method RestEvent (rest parser)
543 (if (not (null? (ly:music-property rest 'pitch)))
544 (simple-note->lily-string rest parser)
545 (format #f "r~a~{~a~}"
546 (duration->lily-string (ly:music-property rest 'duration)
548 (map-in-order (lambda (event)
549 (music->lily-string event parser))
550 (ly:music-property rest 'articulations)))))
552 (define-display-method MultiMeasureRestEvent (rest parser)
553 (string-append "R" (duration->lily-string (ly:music-property rest 'duration)
556 (define-display-method SkipEvent (rest parser)
557 (format #f "s~a~{~a~}"
558 (duration->lily-string (ly:music-property rest 'duration)
560 (map-in-order (lambda (event)
561 (music->lily-string event parser))
562 (ly:music-property rest 'articulations))))
564 (define-display-method RepeatedChord (chord parser)
565 (music->lily-string (ly:music-property chord 'element) parser))
567 (define-display-method MarkEvent (mark parser)
568 (let ((label (ly:music-property mark 'label)))
571 (format #f "\\mark ~a" (markup->lily-string label)))))
573 (define-display-method KeyChangeEvent (key parser)
574 (let ((pitch-alist (ly:music-property key 'pitch-alist))
575 (tonic (ly:music-property key 'tonic)))
576 (if (or (null? pitch-alist)
579 (let ((c-pitch-alist (ly:transpose-key-alist pitch-alist
580 (ly:pitch-diff (ly:make-pitch 0 0 0) tonic))))
581 (format #f "\\key ~a \\~a~a"
582 (note-name->lily-string (ly:music-property key 'tonic) parser)
585 (equal? (ly:parser-lookup parser mode) c-pitch-alist))
586 (symbol->string mode)
588 '(major minor ionian locrian aeolian mixolydian lydian phrygian dorian))
589 (new-line->lily-string))))))
591 (define-display-method RelativeOctaveCheck (octave parser)
592 (let ((pitch (ly:music-property octave 'pitch)))
593 (format #f "\\octaveCheck ~a~a"
594 (note-name->lily-string pitch parser)
595 (octave->lily-string pitch))))
597 (define-display-method VoiceSeparator (sep parser)
600 (define-display-method LigatureEvent (ligature parser)
601 (if (= START (ly:music-property ligature 'span-direction))
605 (define-display-method BarCheck (check parser)
606 (format #f "|~a" (new-line->lily-string)))
608 (define-display-method PesOrFlexaEvent (expr parser)
611 (define-display-method BassFigureEvent (figure parser)
612 (let ((alteration (ly:music-property figure 'alteration))
613 (fig (ly:music-property figure 'figure))
614 (bracket-start (ly:music-property figure 'bracket-start))
615 (bracket-stop (ly:music-property figure 'bracket-stop)))
617 (format #f "~a~a~a~a"
618 (if (null? bracket-start) "" "[")
619 (cond ((null? fig) "_")
620 ((markup? fig) (second fig)) ;; fig: (<number-markup> "number")
622 (if (null? alteration)
625 ((= alteration DOUBLE-FLAT) "--")
626 ((= alteration FLAT) "-")
627 ((= alteration NATURAL) "!")
628 ((= alteration SHARP) "+")
629 ((= alteration DOUBLE-SHARP) "++")
631 (if (null? bracket-stop) "" "]"))))
633 (define-display-method LyricEvent (lyric parser)
634 (format "~a~{~a~^ ~}"
635 (let ((text (ly:music-property lyric 'text)))
636 (if (or (string? text)
637 (eqv? (first text) simple-markup))
638 ;; a string or a simple markup
639 (let ((string (if (string? text)
642 (if (string-match "(\"| |[0-9])" string)
643 ;; TODO check exactly in which cases double quotes should be used
644 (format #f "~s" string)
646 (markup->lily-string text)))
647 (map-in-order (lambda (m) (music->lily-string m parser))
648 (ly:music-property lyric 'articulations))))
650 (define-display-method BreathingEvent (event parser)
657 (define-display-method AutoChangeMusic (m parser)
658 (format #f "\\autochange ~a"
659 (music->lily-string (ly:music-property m 'element) parser)))
661 (define-display-method ContextChange (m parser)
662 (format #f "\\change ~a = \"~a\""
663 (ly:music-property m 'change-to-type)
664 (ly:music-property m 'change-to-id)))
668 (define-display-method TimeScaledMusic (times parser)
669 (let* ((num (ly:music-property times 'numerator))
670 (den (ly:music-property times 'denominator))
671 (span (ly:music-property times 'duration #f))
672 ;; need to format before changing time scale
674 (and span (duration->lily-string span #:force-duration #t)))
676 (time-scale (*time-scale*)))
677 (*previous-duration* #f)
679 (parameterize ((*force-line-break* #f)
680 (*time-scale* (* time-scale scale)))
681 (format #f "\\tuplet ~a/~a ~@[~a ~]~a"
685 (music->lily-string (ly:music-property times 'element) parser)))))
686 (*previous-duration* #f)
689 (define-display-method RelativeOctaveMusic (m parser)
690 (music->lily-string (ly:music-property m 'element) parser))
692 (define-display-method TransposedMusic (m parser)
693 (music->lily-string (ly:music-property m 'element) parser))
699 (define-display-method AlternativeEvent (alternative parser) "")
701 (define (repeat->lily-string expr repeat-type parser)
702 (let* ((main (music->lily-string (ly:music-property expr 'element) parser)))
703 (format #f "\\repeat ~a ~a ~a ~a"
705 (ly:music-property expr 'repeat-count)
707 (let ((alternatives (ly:music-property expr 'elements)))
708 (if (null? alternatives)
710 (format #f "\\alternative { ~{~a ~}}"
711 (map-in-order (lambda (music)
712 (music->lily-string music parser))
715 (define-display-method VoltaRepeatedMusic (expr parser)
716 (repeat->lily-string expr "volta" parser))
718 (define-display-method UnfoldedRepeatedMusic (expr parser)
719 (repeat->lily-string expr "unfold" parser))
721 (define-display-method PercentRepeatedMusic (expr parser)
722 (repeat->lily-string expr "percent" parser))
724 (define-display-method TremoloRepeatedMusic (expr parser)
725 (repeat->lily-string expr "tremolo" parser))
731 (define-display-method ContextSpeccedMusic (expr parser)
732 (let ((id (ly:music-property expr 'context-id))
733 (create-new (ly:music-property expr 'create-new))
734 (music (ly:music-property expr 'element))
735 (operations (ly:music-property expr 'property-operations))
736 (ctype (ly:music-property expr 'context-type)))
737 (format #f "~a ~a~a~a ~a"
738 (if (and (not (null? create-new)) create-new)
744 (format #f " = ~s" id))
745 (if (null? operations)
747 (format #f " \\with {~{~a~}~%~v_}"
748 (parameterize ((*indent* (+ (*indent*) 2)))
750 (format #f "~%~v_\\~a ~s"
756 (parameterize ((*current-context* ctype))
757 (music->lily-string music parser)))))
759 ;; special cases: \figures \lyrics \drums
760 (define-extra-display-method ContextSpeccedMusic (expr parser)
761 (with-music-match (expr (music 'ContextSpeccedMusic
763 property-operations ?op
764 context-type ?context-type
767 (parameterize ((*explicit-mode* #f))
770 (format #f "\\figures ~a" (music->lily-string ?sequence parser)))
772 (format #f "\\lyrics ~a" (music->lily-string ?sequence parser)))
774 (format #f "\\drums ~a" (music->lily-string ?sequence parser)))
779 ;;; Context properties
781 (define-extra-display-method ContextSpeccedMusic (expr parser)
782 (let ((element (ly:music-property expr 'element))
783 (property-tuning? (make-music-type-predicate 'PropertySet
787 (sequence? (make-music-type-predicate 'SequentialMusic)))
788 (if (and (ly:music? element)
789 (or (property-tuning? element)
790 (and (sequence? element)
791 (every property-tuning? (ly:music-property element 'elements)))))
792 (parameterize ((*current-context* (ly:music-property expr 'context-type)))
793 (music->lily-string element parser))
796 (define-public (value->lily-string arg parser)
797 (cond ((ly:music? arg)
798 (music->lily-string arg parser))
800 (format #f "#~s" arg))
802 (markup->lily-string arg))
804 (format #f "##{ ~a #}" (duration->lily-string arg #:force-duration #t)))
807 (note-name->lily-string arg parser)
808 (octave->lily-string arg)))
810 (format #f "#~a" (scheme-expr->lily-string arg)))))
812 (define-display-method PropertySet (expr parser)
813 (let ((property (ly:music-property expr 'symbol))
814 (value (ly:music-property expr 'value))
815 (once (ly:music-property expr 'once)))
816 (format #f "~a\\set ~a~a = ~a~a"
817 (if (and (not (null? once)))
820 (if (eqv? (*current-context*) 'Bottom)
822 (format #f "~a . " (*current-context*)))
824 (value->lily-string value parser)
825 (new-line->lily-string))))
827 (define-display-method PropertyUnset (expr parser)
828 (format #f "\\unset ~a~a~a"
829 (if (eqv? (*current-context*) 'Bottom)
831 (format #f "~a . " (*current-context*)))
832 (ly:music-property expr 'symbol)
833 (new-line->lily-string)))
835 ;;; Layout properties
837 (define-display-method OverrideProperty (expr parser)
838 (let* ((symbol (ly:music-property expr 'symbol))
839 (properties (ly:music-property expr 'grob-property-path
840 (list (ly:music-property expr 'grob-property))))
841 (value (ly:music-property expr 'grob-value))
842 (once (ly:music-property expr 'once)))
844 (format #f "~a\\override ~{~a~^.~} = ~a~a"
849 (if (eqv? (*current-context*) 'Bottom)
850 (cons symbol properties)
851 (cons* (*current-context*) symbol properties))
852 (value->lily-string value parser)
853 (new-line->lily-string))))
855 (define-display-method RevertProperty (expr parser)
856 (let* ((symbol (ly:music-property expr 'symbol))
857 (properties (ly:music-property expr 'grob-property-path
858 (list (ly:music-property expr 'grob-property)))))
859 (format #f "\\revert ~{~a~^.~}~a"
860 (if (eqv? (*current-context*) 'Bottom)
861 (cons symbol properties)
862 (cons* (*current-context*) symbol properties))
863 (new-line->lily-string))))
865 (define-display-method TimeSignatureMusic (expr parser)
866 (let* ((num (ly:music-property expr 'numerator))
867 (den (ly:music-property expr 'denominator))
868 (structure (ly:music-property expr 'beat-structure)))
869 (if (null? structure)
873 (new-line->lily-string))
875 "\\time #'~a ~a/~a~a"
877 (new-line->lily-string)))))
879 ;;; \melisma and \melismaEnd
880 (define-extra-display-method ContextSpeccedMusic (expr parser)
881 "If expr is a melisma, return \"\\melisma\", otherwise, return #f."
882 (with-music-match (expr (music 'ContextSpeccedMusic
883 element (music 'PropertySet
885 symbol 'melismaBusy)))
888 (define-extra-display-method ContextSpeccedMusic (expr parser)
889 "If expr is a melisma end, return \"\\melismaEnd\", otherwise, return #f."
890 (with-music-match (expr (music 'ContextSpeccedMusic
891 element (music 'PropertyUnset
892 symbol 'melismaBusy)))
896 (define-extra-display-method SequentialMusic (expr parser)
897 (with-music-match (expr (music 'SequentialMusic
898 elements ((music 'TempoChangeEvent
901 metronome-count ?count)
902 (music 'ContextSpeccedMusic
903 element (music 'PropertySet
904 symbol 'tempoWholesPerMinute)))))
905 (format #f "\\tempo ~{~a~a~}~a = ~a~a"
907 (list (markup->lily-string ?text) " ")
909 (duration->lily-string ?unit #:force-duration #t)
911 (format #f "~a - ~a" (car ?count) (cdr ?count))
913 (new-line->lily-string))))
915 (define-display-method TempoChangeEvent (expr parser)
916 (let ((text (ly:music-property expr 'text)))
917 (format #f "\\tempo ~a~a"
918 (markup->lily-string text)
919 (new-line->lily-string))))
922 (define clef-name-alist #f)
923 (define-public (memoize-clef-names clefs)
924 "Initialize @code{clef-name-alist}, if not already set."
925 (if (not clef-name-alist)
926 (set! clef-name-alist
927 (map (lambda (name+vals)
928 (cons (cdr name+vals)
932 (define-extra-display-method ContextSpeccedMusic (expr parser)
933 "If @var{expr} is a clef change, return \"\\clef ...\".
934 Otherwise, return @code{#f}."
935 (with-music-match (expr (music 'ContextSpeccedMusic
937 element (music 'SequentialMusic
938 elements ((music 'PropertySet
942 symbol 'middleCClefPosition)
945 symbol 'clefPosition)
947 value ?clef-transposition
948 symbol 'clefTransposition)
950 procedure ly:set-middle-C!)))))
951 (let ((clef-name (assoc-get (list ?clef-glyph ?clef-position 0)
954 (format #f "\\clef \"~a~{~a~a~}\"~a"
956 (cond ((= 0 ?clef-transposition)
958 ((> ?clef-transposition 0)
959 (list "^" (1+ ?clef-transposition)))
961 (list "_" (- 1 ?clef-transposition))))
962 (new-line->lily-string))
966 (define-extra-display-method ContextSpeccedMusic (expr parser)
967 "If `expr' is a bar, return \"\\bar ...\".
968 Otherwise, return #f."
969 (with-music-match (expr (music 'ContextSpeccedMusic
971 element (music 'PropertySet
974 (format #f "\\bar \"~a\"~a" ?bar-type (new-line->lily-string))))
977 (define-extra-display-method ContextSpeccedMusic (expr parser)
978 "If `expr' is a partial measure, return \"\\partial ...\".
979 Otherwise, return #f."
980 (with-music-match (expr (music
987 duration ?duration))))
990 (format #f "\\partial ~a"
991 (duration->lily-string ?duration #:force-duration #t)))))
996 (define-display-method ApplyOutputEvent (applyoutput parser)
997 (let ((proc (ly:music-property applyoutput 'procedure))
998 (ctx (ly:music-property applyoutput 'context-type)))
999 (format #f "\\applyOutput #'~a #~a"
1001 (or (procedure-name proc)
1002 (with-output-to-string
1004 (pretty-print (procedure-source proc))))))))
1006 (define-display-method ApplyContext (applycontext parser)
1007 (let ((proc (ly:music-property applycontext 'procedure)))
1008 (format #f "\\applyContext #~a"
1009 (or (procedure-name proc)
1010 (with-output-to-string
1012 (pretty-print (procedure-source proc))))))))
1015 (define-display-method PartCombineMusic (expr parser)
1016 (format #f "\\partcombine ~{~a ~}"
1017 (map-in-order (lambda (music)
1018 (music->lily-string music parser))
1019 (ly:music-property expr 'elements))))
1021 (define-extra-display-method PartCombineMusic (expr parser)
1022 (with-music-match (expr (music 'PartCombineMusic
1023 elements ((music 'UnrelativableMusic
1024 element (music 'ContextSpeccedMusic
1027 element ?sequence1))
1028 (music 'UnrelativableMusic
1029 element (music 'ContextSpeccedMusic
1032 element ?sequence2)))))
1033 (format #f "\\partcombine ~a~a~a"
1034 (music->lily-string ?sequence1 parser)
1035 (new-line->lily-string)
1036 (music->lily-string ?sequence2 parser))))
1038 (define-display-method UnrelativableMusic (expr parser)
1039 (music->lily-string (ly:music-property expr 'element) parser))
1042 (define-display-method QuoteMusic (expr parser)
1043 (or (with-music-match (expr (music
1045 quoted-voice-direction ?quoted-voice-direction
1046 quoted-music-name ?quoted-music-name
1047 quoted-context-id "cue"
1048 quoted-context-type 'CueVoice
1050 (format #f "\\cueDuring #~s #~a ~a"
1052 ?quoted-voice-direction
1053 (music->lily-string ?music parser)))
1054 (format #f "\\quoteDuring #~s ~a"
1055 (ly:music-property expr 'quoted-music-name)
1056 (music->lily-string (ly:music-property expr 'element) parser))))
1061 (define-display-method LineBreakEvent (expr parser)
1062 (if (null? (ly:music-property expr 'break-permission))
1066 (define-display-method PageBreakEvent (expr parser)
1067 (if (null? (ly:music-property expr 'break-permission))
1071 (define-display-method PageTurnEvent (expr parser)
1072 (if (null? (ly:music-property expr 'break-permission))
1076 (define-extra-display-method EventChord (expr parser)
1077 (with-music-match (expr (music 'EventChord
1078 elements ((music 'LineBreakEvent
1079 break-permission 'force)
1080 (music 'PageBreakEvent
1081 break-permission 'force))))
1084 (define-extra-display-method EventChord (expr parser)
1085 (with-music-match (expr (music 'EventChord
1086 elements ((music 'LineBreakEvent
1087 break-permission 'force)
1088 (music 'PageBreakEvent
1089 break-permission 'force)
1090 (music 'PageTurnEvent
1091 break-permission 'force))))
1099 (define-display-method LyricCombineMusic (expr parser)
1100 (format #f "\\lyricsto ~s ~a"
1101 (ly:music-property expr 'associated-context)
1102 (parameterize ((*explicit-mode* #f))
1103 (music->lily-string (ly:music-property expr 'element) parser))))
1106 (define-extra-display-method SimultaneousMusic (expr parser)
1107 (with-music-match (expr (music 'SimultaneousMusic
1108 elements ((music 'ContextSpeccedMusic
1111 element ?note-sequence)
1112 (music 'ContextSpeccedMusic
1113 context-type 'Lyrics
1115 element (music 'LyricCombineMusic
1116 associated-context ?associated-id
1117 element ?lyric-sequence)))))
1118 (if (string=? ?id ?associated-id)
1119 (format #f "~a~a \\addlyrics ~a"
1120 (music->lily-string ?note-sequence parser)
1121 (new-line->lily-string)
1122 (parameterize ((*explicit-mode* #f))
1123 (music->lily-string ?lyric-sequence parser)))
1126 ;; Silence internal event sent at end of each lyrics block
1127 (define-display-method CompletizeExtenderEvent (expr parser)