7 #(use-modules (srfi srfi-1))
10 tweak = #(def-music-function (parser location sym val arg)
11 (symbol? scheme? ly:music?)
13 "Add @code{sym . val} to the @code{tweaks} property of @var{arg}."
17 (ly:music-property arg 'tweaks)
19 (ly:music-property arg 'tweaks)))
22 tag = #(def-music-function (parser location tag arg)
25 "Add @var{tag} to the @code{tags} property of @var{arg}."
28 (ly:music-property arg 'tags)
30 (ly:music-property arg 'tags)))
34 #(def-music-function (parser location type)
37 "Set the current clef."
42 #(def-music-function (parser location type)
45 (make-property-set 'whichBar type)
49 #(def-music-function (parser location func music) (procedure? ly:music?)
53 #(def-music-function (parser location music lyrics) (ly:music? ly:music?)
55 (make-music 'OldLyricCombineMusic
57 'elements (list music lyrics)))
60 #(def-grace-function startGraceMusic stopGraceMusic)
63 #(def-grace-function startAcciaccaturaMusic stopAcciaccaturaMusic)
65 #(def-grace-function startAppoggiaturaMusic stopAppoggiaturaMusic)
68 #(def-music-function (parser location part1 part2) (ly:music? ly:music?)
69 (make-part-combine-music (list part1 part2)))
72 #(def-music-function (parser location music) (ly:music?)
73 (make-autochange-music music))
76 #(def-music-function (parser location proc) (procedure?)
77 (make-music 'ApplyContext
82 #(def-music-function (parser location proc mus) (procedure? ly:music?)
86 #(def-music-function (parser location music) (ly:music?)
87 (display-scheme-music music)
90 %% FIXME: guile-1.7 required?
91 %#(use-modules (scm display-lily))invalid module name for use-syntax ((srfi srfi-39))
93 #(use-modules (scm display-lily))
94 #(display-lily-init parser)
96 #(def-music-function (parser location music) (ly:music?)
97 (display-lily-music music)
101 #(def-music-function (parser location proc) (procedure?)
102 (make-music 'ApplyOutputEvent
107 #(def-music-function (parser location name property value)
108 (string? symbol? scheme?)
111 "Set @var{property} to @var{value} in all grobs named @var{name}.
112 The @var{name} argument is a string of the form @code{\"Context.GrobName\"}
113 or @code{\"GrobName\"}"
116 ((name-components (string-split name #\.))
117 (context-name 'Bottom)
120 (if (> 2 (length name-components))
121 (set! grob-name (string->symbol (car name-components)))
123 (set! grob-name (string->symbol (list-ref name-components 1)))
124 (set! context-name (string->symbol (list-ref name-components 0)))))
127 (make-music 'ApplyOutputEvent
130 (lambda (grob orig-context context)
132 (cdr (assoc 'name (ly:grob-property grob 'meta)))
134 (set! (ly:grob-property grob property) value)
140 #(def-music-function (parser location) ()
141 (make-music 'EventChord
143 'elements (list (make-music 'BreathingSignEvent))))
147 #(def-music-function (parser location music) (ly:music?)
148 (unfold-repeats music))
152 (parser location fraction music) (number-pair? ly:music?)
153 (ly:music-compress music (ly:make-moment (car fraction) (cdr fraction))))
157 (parser location arg) (ly:music?)
158 (music-map note-to-cluster arg))
163 (parser location tag music) (symbol? ly:music?)
166 (let* ((tags (ly:music-property m 'tags))
167 (res (memq tag tags)))
173 (parser location tag music) (symbol? ly:music?)
176 (let* ((tags (ly:music-property m 'tags))
177 (res (memq tag tags)))
186 %% def-music-function in a .scm causes crash.
190 (parser location what dir main-music)
191 (string? ly:dir? ly:music?)
192 (make-music 'QuoteMusic
194 'quoted-context-type 'Voice
195 'quoted-context-id "cue"
196 'quoted-music-name what
197 'quoted-voice-direction dir
203 (parser location what main-music)
205 (make-music 'QuoteMusic
207 'quoted-music-name what
214 (parser location main-note secondary-note)
215 (ly:music? ly:music?)
217 ((get-notes (lambda (ev-chord)
219 (lambda (m) (eq? 'NoteEvent (ly:music-property m 'name)))
220 (ly:music-property ev-chord 'elements))))
221 (sec-note-events (get-notes secondary-note))
222 (trill-events (filter (lambda (m) (memq 'trill-span-event (ly:music-property m 'types)))
223 (ly:music-property main-note 'elements)))
226 (if (pair? sec-note-events)
227 (ly:music-property (car sec-note-events) 'pitch)
230 (if (ly:pitch? trill-pitch)
231 (for-each (lambda (m) (ly:music-set-property! m 'pitch trill-pitch))
234 (ly:warning (_ "Second argument of \\pitchedTrill should be single note: "))
235 (display sec-note-events)))
241 (parser location music)
245 (if (string? (ly:music-property mus 'quoted-music-name))
246 (ly:music-property mus 'element)
255 (parser location main grace)
256 (ly:music? ly:music?)
259 ((main-length (ly:music-length main))
260 (fraction (ly:parser-lookup parser 'afterGraceFraction)))
262 (make-simultaneous-music
265 (make-sequential-music
268 (make-music 'SkipMusic
269 'duration (ly:make-duration
271 (* (ly:moment-main-numerator main-length)
273 (* (ly:moment-main-denominator main-length)
275 (make-music 'GraceMusic
276 'element grace)))))))
280 #(def-music-function (parser location n) (integer?)
281 (make-music 'ApplyContext
286 ((cbn (ly:context-property c 'currentBarNumber)))
288 (ly:input-message location "Barcheck failed got ~a expect ~a"
293 % for regression testing purposes.
295 #(def-music-function (parser location l r) (pair? pair?)
296 (make-grob-property-override 'Beam 'positions
297 (ly:make-simple-closure
298 (ly:make-simple-closure
300 (list chain-grob-member-functions `(,cons 0 0))
301 (check-quant-callbacks l r))))))
303 % for regression testing purposes.
305 #(def-music-function (parser location comp) (procedure?)
306 (make-grob-property-override 'Beam 'positions
307 (ly:make-simple-closure
308 (ly:make-simple-closure
310 (list chain-grob-member-functions `(,cons 0 0))
311 (check-slope-callbacks comp))))))
315 #(def-music-function (parser location voice-ids music) (list? ly:music?)
316 "Define parallel music sequences, separated by '|' (bar check signs),
317 and assign them to the identifiers provided in @var{voice-ids}.
319 @var{voice-ids}: a list of music identifiers (symbols containing only letters)
321 @var{music}: a music sequence, containing BarChecks as limiting expressions.
324 \\parallelMusic #'(A B C) {
333 (let* ((voices (apply circular-list (make-list (length voice-ids) (list))))
334 (current-voices voices)
335 (current-sequence (list)))
338 (define (push-music m)
339 "Push the music expression into the current sequence"
340 (set! current-sequence (cons m current-sequence)))
341 (define (change-voice)
342 "Stores the previously built sequence into the current voice and
343 change to the following voice."
344 (list-set! current-voices 0 (cons (make-music 'SequentialMusic
345 'elements (reverse! current-sequence))
346 (car current-voices)))
347 (set! current-sequence (list))
348 (set! current-voices (cdr current-voices)))
349 (define (bar-check? m)
350 "Checks whether m is a bar check."
351 (eq? (ly:music-property m 'name) 'BarCheck))
352 (define (music-origin music)
353 "Recursively search an origin location stored in music."
354 (cond ((null? music) #f)
355 ((not (null? (ly:music-property music 'origin)))
356 (ly:music-property music 'origin))
357 (else (or (music-origin (ly:music-property music 'element))
358 (let ((origins (remove not (map music-origin
359 (ly:music-property music 'elements)))))
360 (and (not (null? origins)) (car origins)))))))
362 ;; first, split the music and fill in voices
363 (map-in-order (lambda (m)
365 (if (bar-check? m) (change-voice)))
366 (ly:music-property music 'elements))
367 (if (not (null? current-sequence)) (change-voice))
368 ;; un-circularize `voices' and reorder the voices
369 (set! voices (map-in-order (lambda (dummy seqs)
373 ;; set origin location of each sequence in each voice
374 ;; for better type error tracking
375 (for-each (lambda (voice)
376 (for-each (lambda (seq)
377 (set! (ly:music-property seq 'origin)
378 (or (music-origin seq) location)))
382 ;; check sequence length
383 (apply for-each (lambda (. seqs)
384 (let ((moment-reference (ly:music-length (car seqs))))
385 (for-each (lambda (seq moment)
386 (if (not (equal? moment moment-reference))
387 (ly:music-message seq
388 "Bars in parallel music don't have the same length")))
389 seqs (map-in-order ly:music-length seqs))))
392 ;; bind voice identifiers to the voices
393 (map (lambda (voice-id voice)
394 (ly:parser-define! parser voice-id
395 (make-music 'SequentialMusic
399 ;; Return an empty sequence. this function is actually a "void" function.
400 (make-music 'SequentialMusic 'void #t))
405 %% this is a stub. Write your own to suit the spacing tweak output.
407 #(def-music-function (parser location parameters) (list?)
408 (make-music 'SequentialMusic 'void #t))