X-Git-Url: https://git.donarmstrong.com/?a=blobdiff_plain;f=scm%2Fmusic-functions.scm;h=383b7f3f6defb7e85373397b08b7b1000aaec08c;hb=bf168d9084446839ce050db03d1b828291e88e0c;hp=22d731fe4e89003702339537f939f157d1891a33;hpb=0c6b9c0a459a2116e028f533ef978bf7d918ef00;p=lilypond.git
diff --git a/scm/music-functions.scm b/scm/music-functions.scm
index 22d731fe4e..383b7f3f6d 100644
--- a/scm/music-functions.scm
+++ b/scm/music-functions.scm
@@ -16,7 +16,7 @@
;;;; You should have received a copy of the GNU General Public License
;;;; along with LilyPond. If not, see .
-; for define-safe-public when byte-compiling using Guile V2
+;; for define-safe-public when byte-compiling using Guile V2
(use-modules (scm safe-utility-defs))
(use-modules (ice-9 optargs))
@@ -28,7 +28,7 @@
;;; ==> set the 'elements property and return it
(define-public ly:music-property
(make-procedure-with-setter ly:music-property
- ly:music-set-property!))
+ ly:music-set-property!))
(define-safe-public (music-is-of-type? mus type)
"Does @code{mus} belong to the music class @code{type}?"
@@ -37,23 +37,23 @@
;; TODO move this
(define-public ly:grob-property
(make-procedure-with-setter ly:grob-property
- ly:grob-set-property!))
+ ly:grob-set-property!))
(define-public ly:grob-object
(make-procedure-with-setter ly:grob-object
- ly:grob-set-object!))
+ ly:grob-set-object!))
(define-public ly:grob-parent
(make-procedure-with-setter ly:grob-parent
- ly:grob-set-parent!))
+ ly:grob-set-parent!))
(define-public ly:prob-property
(make-procedure-with-setter ly:prob-property
- ly:prob-set-property!))
+ ly:prob-set-property!))
(define-public ly:context-property
(make-procedure-with-setter ly:context-property
- ly:context-set-property!))
+ ly:context-set-property!))
(define-public (music-map function music)
"Apply @var{function} to @var{music} and all of the music it contains.
@@ -61,13 +61,13 @@
First it recurses over the children, then the function is applied to
@var{music}."
(let ((es (ly:music-property music 'elements))
- (e (ly:music-property music 'element)))
+ (e (ly:music-property music 'element)))
(if (pair? es)
- (set! (ly:music-property music 'elements)
- (map (lambda (y) (music-map function y)) es)))
+ (set! (ly:music-property music 'elements)
+ (map (lambda (y) (music-map function y)) es)))
(if (ly:music? e)
- (set! (ly:music-property music 'element)
- (music-map function e)))
+ (set! (ly:music-property music 'element)
+ (music-map function e)))
(function music)))
(define-public (music-filter pred? music)
@@ -76,31 +76,31 @@ First it recurses over the children, then the function is applied to
(define (inner-music-filter pred? music)
"Recursive function."
(let* ((es (ly:music-property music 'elements))
- (e (ly:music-property music 'element))
- (as (ly:music-property music 'articulations))
- (filtered-as (filter ly:music? (map (lambda (y) (inner-music-filter pred? y)) as)))
- (filtered-e (if (ly:music? e)
- (inner-music-filter pred? e)
- e))
- (filtered-es (filter ly:music? (map (lambda (y) (inner-music-filter pred? y)) es))))
+ (e (ly:music-property music 'element))
+ (as (ly:music-property music 'articulations))
+ (filtered-as (filter ly:music? (map (lambda (y) (inner-music-filter pred? y)) as)))
+ (filtered-e (if (ly:music? e)
+ (inner-music-filter pred? e)
+ e))
+ (filtered-es (filter ly:music? (map (lambda (y) (inner-music-filter pred? y)) es))))
(if (not (null? e))
- (set! (ly:music-property music 'element) filtered-e))
+ (set! (ly:music-property music 'element) filtered-e))
(if (not (null? es))
- (set! (ly:music-property music 'elements) filtered-es))
+ (set! (ly:music-property music 'elements) filtered-es))
(if (not (null? as))
- (set! (ly:music-property music 'articulations) filtered-as))
+ (set! (ly:music-property music 'articulations) filtered-as))
;; if filtering emptied the expression, we remove it completely.
(if (or (not (pred? music))
- (and (eq? filtered-es '()) (not (ly:music? e))
- (or (not (eq? es '()))
- (ly:music? e))))
- (set! music '()))
+ (and (eq? filtered-es '()) (not (ly:music? e))
+ (or (not (eq? es '()))
+ (ly:music? e))))
+ (set! music '()))
music))
(set! music (inner-music-filter pred? music))
(if (ly:music? music)
music
- (make-music 'Music))) ;must return music.
+ (make-music 'Music))) ;must return music.
(define*-public (display-music music #:optional (port (current-output-port)))
"Display music, not done with @code{music-map} for clarity of
@@ -108,16 +108,16 @@ presentation."
(display music port)
(display ": { " port)
(let ((es (ly:music-property music 'elements))
- (e (ly:music-property music 'element)))
+ (e (ly:music-property music 'element)))
(display (ly:music-mutable-properties music) port)
(if (pair? es)
- (begin (display "\nElements: {\n" port)
- (for-each (lambda (m) (display-music m port)) es)
- (display "}\n" port)))
+ (begin (display "\nElements: {\n" port)
+ (for-each (lambda (m) (display-music m port)) es)
+ (display "}\n" port)))
(if (ly:music? e)
- (begin
- (display "\nChild:" port)
- (display-music e port))))
+ (begin
+ (display "\nChild:" port)
+ (display-music e port))))
(display " }\n" port)
music)
@@ -134,20 +134,20 @@ For instance,
"Return a keyword, eg. `#:bold', from the `proc' function, eg. #"
(let ((cmd-markup (symbol->string (procedure-name proc))))
(symbol->keyword (string->symbol (substring cmd-markup 0 (- (string-length cmd-markup)
- (string-length "-markup")))))))
+ (string-length "-markup")))))))
(define (transform-arg arg)
(cond ((and (pair? arg) (markup? (car arg))) ;; a markup list
- (apply append (map inner-markup->make-markup arg)))
- ((and (not (string? arg)) (markup? arg)) ;; a markup
- (inner-markup->make-markup arg))
- (else ;; scheme arg
- (music->make-music arg))))
+ (append-map inner-markup->make-markup arg))
+ ((and (not (string? arg)) (markup? arg)) ;; a markup
+ (inner-markup->make-markup arg))
+ (else ;; scheme arg
+ (music->make-music arg))))
(define (inner-markup->make-markup mrkup)
(if (string? mrkup)
- `(#:simple ,mrkup)
- (let ((cmd (proc->command-keyword (car mrkup)))
- (args (map transform-arg (cdr mrkup))))
- `(,cmd ,@args))))
+ `(#:simple ,mrkup)
+ (let ((cmd (proc->command-keyword (car mrkup)))
+ (args (map transform-arg (cdr mrkup))))
+ `(,cmd ,@args))))
;; body:
(if (string? markup-expression)
markup-expression
@@ -158,52 +158,52 @@ For instance,
equivalent to @var{obj}, that is, for a music expression, a
@code{(make-music ...)} form."
(cond (;; markup expression
- (markup? obj)
- (markup-expression->make-markup obj))
- (;; music expression
- (ly:music? obj)
- `(make-music
- ',(ly:music-property obj 'name)
- ,@(apply append (map (lambda (prop)
- `(',(car prop)
- ,(music->make-music (cdr prop))))
- (remove (lambda (prop)
- (eqv? (car prop) 'origin))
- (ly:music-mutable-properties obj))))))
- (;; moment
- (ly:moment? obj)
- `(ly:make-moment ,(ly:moment-main-numerator obj)
- ,(ly:moment-main-denominator obj)
- ,(ly:moment-grace-numerator obj)
- ,(ly:moment-grace-denominator obj)))
- (;; note duration
- (ly:duration? obj)
- `(ly:make-duration ,(ly:duration-log obj)
- ,(ly:duration-dot-count obj)
- ,(ly:duration-scale obj)))
- (;; note pitch
- (ly:pitch? obj)
- `(ly:make-pitch ,(ly:pitch-octave obj)
- ,(ly:pitch-notename obj)
- ,(ly:pitch-alteration obj)))
- (;; scheme procedure
- (procedure? obj)
- (or (procedure-name obj) obj))
- (;; a symbol (avoid having an unquoted symbol)
- (symbol? obj)
- `',obj)
- (;; an empty list (avoid having an unquoted empty list)
- (null? obj)
- `'())
- (;; a proper list
- (list? obj)
- `(list ,@(map music->make-music obj)))
- (;; a pair
- (pair? obj)
- `(cons ,(music->make-music (car obj))
- ,(music->make-music (cdr obj))))
- (else
- obj)))
+ (markup? obj)
+ (markup-expression->make-markup obj))
+ (;; music expression
+ (ly:music? obj)
+ `(make-music
+ ',(ly:music-property obj 'name)
+ ,@(append-map (lambda (prop)
+ `(',(car prop)
+ ,(music->make-music (cdr prop))))
+ (remove (lambda (prop)
+ (eqv? (car prop) 'origin))
+ (ly:music-mutable-properties obj)))))
+ (;; moment
+ (ly:moment? obj)
+ `(ly:make-moment ,(ly:moment-main-numerator obj)
+ ,(ly:moment-main-denominator obj)
+ ,(ly:moment-grace-numerator obj)
+ ,(ly:moment-grace-denominator obj)))
+ (;; note duration
+ (ly:duration? obj)
+ `(ly:make-duration ,(ly:duration-log obj)
+ ,(ly:duration-dot-count obj)
+ ,(ly:duration-scale obj)))
+ (;; note pitch
+ (ly:pitch? obj)
+ `(ly:make-pitch ,(ly:pitch-octave obj)
+ ,(ly:pitch-notename obj)
+ ,(ly:pitch-alteration obj)))
+ (;; scheme procedure
+ (procedure? obj)
+ (or (procedure-name obj) obj))
+ (;; a symbol (avoid having an unquoted symbol)
+ (symbol? obj)
+ `',obj)
+ (;; an empty list (avoid having an unquoted empty list)
+ (null? obj)
+ `'())
+ (;; a proper list
+ (list? obj)
+ `(list ,@(map music->make-music obj)))
+ (;; a pair
+ (pair? obj)
+ `(cons ,(music->make-music (car obj))
+ ,(music->make-music (cdr obj))))
+ (else
+ obj)))
(use-modules (ice-9 pretty-print))
(define*-public (display-scheme-music obj #:optional (port (current-output-port)))
@@ -219,14 +219,14 @@ which often can be read back in order to generate an equivalent expression."
(scm display-lily))
(define*-public (display-lily-music expr parser #:optional (port (current-output-port))
- #:key force-duration)
+ #:key force-duration)
"Display the music expression using LilyPond syntax"
(memoize-clef-names supported-clefs)
(parameterize ((*indent* 0)
- (*previous-duration* (ly:make-duration 2))
- (*force-duration* force-duration))
- (display (music->lily-string expr parser) port)
- (newline port)))
+ (*previous-duration* (ly:make-duration 2))
+ (*force-duration* force-duration))
+ (display (music->lily-string expr parser) port)
+ (newline port)))
;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;
@@ -236,17 +236,17 @@ which often can be read back in order to generate an equivalent expression."
The number of dots in the shifted music may not be less than zero."
(let ((d (ly:music-property music 'duration)))
(if (ly:duration? d)
- (let* ((cp (ly:duration-scale d))
- (nd (ly:make-duration
+ (let* ((cp (ly:duration-scale d))
+ (nd (ly:make-duration
(+ shift (ly:duration-log d))
(max 0 (+ dot (ly:duration-dot-count d)))
- cp)))
- (set! (ly:music-property music 'duration) nd)))
+ cp)))
+ (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))
+ music))
(define-public (make-repeat name times main alts)
"Create a repeat music expression, with all properties initialized
@@ -257,55 +257,55 @@ through MUSIC."
;; NoteEvent or a non-expanded chord-repetition
;; We just take anything that actually sports an announced duration.
(if (ly:duration? (ly:music-property music 'duration))
- (ly:music-property music 'duration)
- (let loop ((elts (if (ly:music? (ly:music-property music 'element))
- (list (ly:music-property music 'element))
- (ly:music-property music 'elements))))
- (and (pair? elts)
- (let ((dur (first-note-duration (car elts))))
- (if (ly:duration? dur)
- dur
- (loop (cdr elts))))))))
+ (ly:music-property music 'duration)
+ (let loop ((elts (if (ly:music? (ly:music-property music 'element))
+ (list (ly:music-property music 'element))
+ (ly:music-property music 'elements))))
+ (and (pair? elts)
+ (let ((dur (first-note-duration (car elts))))
+ (if (ly:duration? dur)
+ dur
+ (loop (cdr elts))))))))
(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)))
+ (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 (and (equal? name "tremolo")
- (pair? (extract-named-music main '(EventChord NoteEvent))))
- ;; This works for single-note and multi-note tremolos!
- (let* ((children (if (music-is-of-type? main 'sequential-music)
- ;; \repeat tremolo n { ... }
- (length (extract-named-music main '(EventChord
- NoteEvent)))
- ;; \repeat tremolo n c4
- 1))
- ;; # of dots is equal to the 1 in bitwise representation (minus 1)!
- (dots (1- (logcount (* times children))))
- ;; The remaining missing multiplicator to scale the notes by
- ;; times * children
- (mult (/ (* times children (ash 1 dots)) (1- (ash 2 dots))))
- (shift (- (ly:intlog2 (floor mult))))
- (note-duration (first-note-duration r))
- (duration-log (if (ly:duration? note-duration)
- (ly:duration-log note-duration)
- 1))
- (tremolo-type (ash 1 duration-log)))
- (set! (ly:music-property r 'tremolo-type) tremolo-type)
- (if (not (and (integer? mult) (= (logcount mult) 1)))
- (ly:music-warning
- main
- (ly:format (_ "invalid tremolo repeat count: ~a") times)))
- ;; Adjust the time of the notes
- (ly:music-compress r (ly:make-moment 1 children))
- ;; Adjust the displayed note durations
- (shift-duration-log r shift dots))
- r)))
+ (pair? (extract-named-music main '(EventChord NoteEvent))))
+ ;; This works for single-note and multi-note tremolos!
+ (let* ((children (if (music-is-of-type? main 'sequential-music)
+ ;; \repeat tremolo n { ... }
+ (length (extract-named-music main '(EventChord
+ NoteEvent)))
+ ;; \repeat tremolo n c4
+ 1))
+ ;; # of dots is equal to the 1 in bitwise representation (minus 1)!
+ (dots (1- (logcount (* times children))))
+ ;; The remaining missing multiplicator to scale the notes by
+ ;; times * children
+ (mult (/ (* times children (ash 1 dots)) (1- (ash 2 dots))))
+ (shift (- (ly:intlog2 (floor mult))))
+ (note-duration (first-note-duration r))
+ (duration-log (if (ly:duration? note-duration)
+ (ly:duration-log note-duration)
+ 1))
+ (tremolo-type (ash 1 duration-log)))
+ (set! (ly:music-property r 'tremolo-type) tremolo-type)
+ (if (not (and (integer? mult) (= (logcount mult) 1)))
+ (ly:music-warning
+ main
+ (ly:format (_ "invalid tremolo repeat count: ~a") times)))
+ ;; Adjust the time of the notes
+ (ly:music-compress r (ly:make-moment 1 children))
+ ;; Adjust the displayed note durations
+ (shift-duration-log r shift dots))
+ r)))
(define (calc-repeat-slash-count music)
"Given the child-list @var{music} in @code{PercentRepeatMusic},
@@ -313,13 +313,13 @@ calculate the number of slashes based on the durations. Returns @code{0}
if durations in @var{music} vary, allowing slash beats and double-percent
beats to be distinguished."
(let* ((durs (map duration-of-note
- (extract-named-music music '(EventChord NoteEvent
- RestEvent SkipEvent))))
- (first-dur (car durs)))
+ (extract-named-music music '(EventChord NoteEvent
+ RestEvent SkipEvent))))
+ (first-dur (car durs)))
(if (every (lambda (d) (equal? d first-dur)) durs)
- (max (- (ly:duration-log first-dur) 2) 1)
- 0)))
+ (max (- (ly:duration-log first-dur) 2) 1)
+ 0)))
;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;
;; clusters.
@@ -328,8 +328,8 @@ beats to be distinguished."
"Replace @code{NoteEvents} by @code{ClusterNoteEvents}."
(if (eq? (ly:music-property music 'name) 'NoteEvent)
(make-music 'ClusterNoteEvent
- 'pitch (ly:music-property music 'pitch)
- 'duration (ly:music-property music 'duration))
+ 'pitch (ly:music-property music 'pitch)
+ 'duration (ly:music-property music 'duration))
music))
(define-public (notes-to-clusters music)
@@ -342,44 +342,44 @@ beats to be distinguished."
"Replace all repeats with unfolded repeats."
(let ((es (ly:music-property music 'elements))
- (e (ly:music-property music 'element)))
+ (e (ly:music-property music 'element)))
(if (music-is-of-type? music 'repeated-music)
- (let* ((props (ly:music-mutable-properties music))
- (old-name (ly:music-property music 'name))
- (flattened (flatten-alist props)))
- (set! music (apply make-music (cons 'UnfoldedRepeatedMusic
- flattened)))
-
- (if (and (equal? old-name 'TremoloRepeatedMusic)
- (pair? (extract-named-music e '(EventChord NoteEvent))))
- ;; This works for single-note and multi-note tremolos!
- (let* ((children (if (music-is-of-type? e 'sequential-music)
- ;; \repeat tremolo n { ... }
- (length (extract-named-music e '(EventChord
- NoteEvent)))
- ;; \repeat tremolo n c4
- 1))
- (times (ly:music-property music 'repeat-count))
-
- ;; # of dots is equal to the 1 in bitwise representation (minus 1)!
- (dots (1- (logcount (* times children))))
- ;; The remaining missing multiplicator to scale the notes by
- ;; times * children
- (mult (/ (* times children (ash 1 dots)) (1- (ash 2 dots))))
- (shift (- (ly:intlog2 (floor mult)))))
-
- ;; Adjust the time of the notes
- (ly:music-compress music (ly:make-moment children 1))
- ;; Adjust the displayed note durations
- (shift-duration-log music (- shift) (- dots))))))
+ (let* ((props (ly:music-mutable-properties music))
+ (old-name (ly:music-property music 'name))
+ (flattened (flatten-alist props)))
+ (set! music (apply make-music (cons 'UnfoldedRepeatedMusic
+ flattened)))
+
+ (if (and (equal? old-name 'TremoloRepeatedMusic)
+ (pair? (extract-named-music e '(EventChord NoteEvent))))
+ ;; This works for single-note and multi-note tremolos!
+ (let* ((children (if (music-is-of-type? e 'sequential-music)
+ ;; \repeat tremolo n { ... }
+ (length (extract-named-music e '(EventChord
+ NoteEvent)))
+ ;; \repeat tremolo n c4
+ 1))
+ (times (ly:music-property music 'repeat-count))
+
+ ;; # of dots is equal to the 1 in bitwise representation (minus 1)!
+ (dots (1- (logcount (* times children))))
+ ;; The remaining missing multiplicator to scale the notes by
+ ;; times * children
+ (mult (/ (* times children (ash 1 dots)) (1- (ash 2 dots))))
+ (shift (- (ly:intlog2 (floor mult)))))
+
+ ;; Adjust the time of the notes
+ (ly:music-compress music (ly:make-moment children 1))
+ ;; Adjust the displayed note durations
+ (shift-duration-log music (- shift) (- dots))))))
(if (pair? es)
- (set! (ly:music-property music 'elements)
- (map unfold-repeats es)))
+ (set! (ly:music-property music 'elements)
+ (map unfold-repeats es)))
(if (ly:music? e)
- (set! (ly:music-property music 'element)
- (unfold-repeats e)))
+ (set! (ly:music-property music 'element)
+ (unfold-repeats e)))
music))
;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;
@@ -465,24 +465,24 @@ respectively."
"Make a @code{Music} expression that sets @var{gprop} to @var{val} in
@var{grob}. Does a pop first, i.e., this is not an override."
(make-music 'OverrideProperty
- 'symbol grob
- 'grob-property gprop
- 'grob-value val
- 'pop-first #t))
+ 'symbol grob
+ 'grob-property gprop
+ 'grob-value val
+ 'pop-first #t))
(define-public (make-grob-property-override grob gprop val)
"Make a @code{Music} expression that overrides @var{gprop} to @var{val}
in @var{grob}."
(make-music 'OverrideProperty
- 'symbol grob
- 'grob-property gprop
- 'grob-value val))
+ 'symbol grob
+ 'grob-property gprop
+ 'grob-value val))
(define-public (make-grob-property-revert grob gprop)
"Revert the grob property @var{gprop} for @var{grob}."
(make-music 'RevertProperty
- 'symbol grob
- 'grob-property gprop))
+ 'symbol grob
+ 'grob-property gprop))
(define direction-polyphonic-grobs
'(AccidentalSuggestion
@@ -491,6 +491,7 @@ in @var{grob}."
Fingering
LaissezVibrerTie
LigatureBracket
+ MultiMeasureRest
PhrasingSlur
RepeatTie
Rest
@@ -502,77 +503,64 @@ in @var{grob}."
TupletBracket
TrillSpanner))
+(define general-grace-settings
+ `((Voice Stem font-size -3)
+ (Voice Flag font-size -3)
+ (Voice NoteHead font-size -3)
+ (Voice TabNoteHead font-size -4)
+ (Voice Dots font-size -3)
+ (Voice Stem length-fraction 0.8)
+ (Voice Stem no-stem-extend #t)
+ (Voice Beam beam-thickness 0.384)
+ (Voice Beam length-fraction 0.8)
+ (Voice Accidental font-size -4)
+ (Voice AccidentalCautionary font-size -4)
+ (Voice Script font-size -3)
+ (Voice Fingering font-size -8)
+ (Voice StringNumber font-size -8)))
+
+(define-public score-grace-settings
+ (append
+ `((Voice Stem direction ,UP)
+ (Voice Slur direction ,DOWN))
+ general-grace-settings))
+
(define-safe-public (make-voice-props-set n)
(make-sequential-music
(append
(map (lambda (x) (make-grob-property-set x 'direction
- (if (odd? n) -1 1)))
- direction-polyphonic-grobs)
+ (if (odd? n) -1 1)))
+ direction-polyphonic-grobs)
(list
- (make-property-set 'graceSettings
- ;; TODO: take this from voicedGraceSettings or similar.
- '((Voice Stem font-size -3)
- (Voice Flag font-size -3)
- (Voice NoteHead font-size -3)
- (Voice TabNoteHead font-size -4)
- (Voice Dots font-size -3)
- (Voice Stem length-fraction 0.8)
- (Voice Stem no-stem-extend #t)
- (Voice Beam beam-thickness 0.384)
- (Voice Beam length-fraction 0.8)
- (Voice Accidental font-size -4)
- (Voice AccidentalCautionary font-size -4)
- (Voice Script font-size -3)
- (Voice Fingering font-size -8)
- (Voice StringNumber font-size -8)))
-
- (make-grob-property-set 'NoteColumn 'horizontal-shift (quotient n 2))
- (make-grob-property-set 'MultiMeasureRest 'staff-position (if (odd? n) -4 4))))))
+ (make-property-set 'graceSettings general-grace-settings)
+ (make-grob-property-set 'NoteColumn 'horizontal-shift (quotient n 2))))))
(define-safe-public (make-voice-props-override n)
(make-sequential-music
(append
(map (lambda (x) (make-grob-property-override x 'direction
- (if (odd? n) -1 1)))
- direction-polyphonic-grobs)
+ (if (odd? n) -1 1)))
+ direction-polyphonic-grobs)
(list
- (make-property-set 'graceSettings
- ;; TODO: take this from voicedGraceSettings or similar.
- '((Voice Stem font-size -3)
- (Voice Flag font-size -3)
- (Voice NoteHead font-size -3)
- (Voice TabNoteHead font-size -4)
- (Voice Dots font-size -3)
- (Voice Stem length-fraction 0.8)
- (Voice Stem no-stem-extend #t)
- (Voice Beam beam-thickness 0.384)
- (Voice Beam length-fraction 0.8)
- (Voice Accidental font-size -4)
- (Voice AccidentalCautionary font-size -4)
- (Voice Script font-size -3)
- (Voice Fingering font-size -8)
- (Voice StringNumber font-size -8)))
-
- (make-grob-property-override 'NoteColumn 'horizontal-shift (quotient n 2))
- (make-grob-property-override 'MultiMeasureRest 'staff-position (if (odd? n) -4 4))))))
+ (make-property-set 'graceSettings general-grace-settings)
+ (make-grob-property-override 'NoteColumn 'horizontal-shift (quotient n 2))))))
(define-safe-public (make-voice-props-revert)
(make-sequential-music
(append
(map (lambda (x) (make-grob-property-revert x 'direction))
- direction-polyphonic-grobs)
+ direction-polyphonic-grobs)
(list (make-property-unset 'graceSettings)
- (make-grob-property-revert 'NoteColumn 'horizontal-shift)
- (make-grob-property-revert 'MultiMeasureRest 'staff-position)))))
+ (make-grob-property-revert 'NoteColumn 'horizontal-shift)))))
(define-safe-public (context-spec-music m context #:optional id)
"Add \\context CONTEXT = ID to M."
(let ((cm (make-music 'ContextSpeccedMusic
- 'element m
- 'context-type context)))
+ 'element m
+ 'context-type context)))
(if (string? id)
- (set! (ly:music-property cm 'context-id) id))
+ (set! (ly:music-property cm 'context-id) id))
cm))
(define-public (descend-to-context m context)
@@ -583,82 +571,82 @@ in @var{grob}."
(define-public (make-non-relative-music mus)
(make-music 'UnrelativableMusic
- 'element mus))
+ 'element mus))
(define-public (make-apply-context func)
(make-music 'ApplyContext
- 'procedure func))
+ 'procedure func))
(define-public (make-sequential-music elts)
(make-music 'SequentialMusic
- 'elements elts))
+ 'elements elts))
(define-public (make-simultaneous-music elts)
(make-music 'SimultaneousMusic
- 'elements elts))
+ 'elements elts))
(define-safe-public (make-event-chord elts)
(make-music 'EventChord
- 'elements elts))
+ 'elements elts))
(define-public (make-skip-music dur)
(make-music 'SkipMusic
- 'duration dur))
+ 'duration dur))
(define-public (make-grace-music music)
(make-music 'GraceMusic
- 'element music))
+ 'element music))
;;;;;;;;;;;;;;;;
;; mmrest
(define-public (make-multi-measure-rest duration location)
(make-music 'MultiMeasureRestMusic
- 'origin location
- 'duration duration))
+ 'origin location
+ 'duration duration))
(define-public (make-property-set sym val)
(make-music 'PropertySet
- 'symbol sym
- 'value val))
+ 'symbol sym
+ 'value val))
(define-public (make-property-unset sym)
(make-music 'PropertyUnset
- 'symbol sym))
+ 'symbol sym))
(define-safe-public (make-articulation name)
(make-music 'ArticulationEvent
- 'articulation-type name))
+ 'articulation-type name))
(define-public (make-lyric-event string duration)
(make-music 'LyricEvent
- 'duration duration
- 'text string))
+ 'duration duration
+ 'text string))
(define-safe-public (make-span-event type span-dir)
(make-music type
- 'span-direction span-dir))
+ 'span-direction span-dir))
(define-public (override-head-style heads style)
"Override style for @var{heads} to @var{style}."
(make-sequential-music
- (if (pair? heads)
- (map (lambda (h)
+ (if (pair? heads)
+ (map (lambda (h)
(make-grob-property-override h 'style style))
- heads)
- (list (make-grob-property-override heads 'style style)))))
+ heads)
+ (list (make-grob-property-override heads 'style style)))))
(define-public (revert-head-style heads)
"Revert style for @var{heads}."
(make-sequential-music
- (if (pair? heads)
- (map (lambda (h)
+ (if (pair? heads)
+ (map (lambda (h)
(make-grob-property-revert h 'style))
- heads)
- (list (make-grob-property-revert heads 'style)))))
+ heads)
+ (list (make-grob-property-revert heads 'style)))))
(define-public (style-note-heads heads style music)
- "Set @var{style} for all @var{heads} in @var{music}. Works both
+ "Set @var{style} for all @var{heads} in @var{music}. Works both
inside of and outside of chord construct."
;; are we inside a <...>?
(if (eq? (ly:music-property music 'name) 'NoteEvent)
@@ -669,17 +657,17 @@ inside of and outside of chord construct."
music)
;; not in <...>, so use overrides
(make-sequential-music
- (list
- (override-head-style heads style)
- music
- (revert-head-style heads)))))
+ (list
+ (override-head-style heads style)
+ music
+ (revert-head-style heads)))))
- (define-public (set-mus-properties! m alist)
+(define-public (set-mus-properties! m alist)
"Set all of @var{alist} as properties of @var{m}."
(if (pair? alist)
(begin
- (set! (ly:music-property m (caar alist)) (cdar alist))
- (set-mus-properties! m (cdr alist)))))
+ (set! (ly:music-property m (caar alist)) (cdar alist))
+ (set-mus-properties! m (cdr alist)))))
(define-public (music-separator? m)
"Is @var{m} a separator?"
@@ -688,7 +676,7 @@ inside of and outside of chord construct."
;;; expanding repeat chords
(define-public (copy-repeat-chord original-chord repeat-chord duration
- event-types)
+ event-types)
"Copies all events in @var{event-types} (be sure to include
@code{rhythmic-events}) from @var{original-chord} over to
@var{repeat-chord} with their articulations filtered as well. Any
@@ -700,47 +688,47 @@ duration is replaced with the specified @var{duration}."
(define (keep-element? m)
(any (lambda (t) (music-is-of-type? m t))
- event-types))
+ event-types))
(define origin (ly:music-property repeat-chord 'origin #f))
(define (set-origin! l)
(if origin
- (for-each (lambda (m) (set! (ly:music-property m 'origin) origin)) l))
+ (for-each (lambda (m) (set! (ly:music-property m 'origin) origin)) l))
l)
(for-each
(lambda (field)
(for-each (lambda (e)
- (for-each (lambda (x)
- (set! event-types (delq x event-types)))
- (ly:music-property e 'types)))
- (ly:music-property repeat-chord field)))
+ (for-each (lambda (x)
+ (set! event-types (delq x event-types)))
+ (ly:music-property e 'types)))
+ (ly:music-property repeat-chord field)))
'(elements articulations))
;; now treat the elements
(set! (ly:music-property repeat-chord 'elements)
- (let ((elts
- (set-origin! (ly:music-deep-copy
- (filter keep-element?
- (ly:music-property original-chord
- 'elements))))))
- (for-each
- (lambda (m)
- (let ((arts (ly:music-property m 'articulations)))
- (if (pair? arts)
- (set! (ly:music-property m 'articulations)
- (set-origin! (filter! keep-element? arts))))
- (if (ly:duration? (ly:music-property m 'duration))
- (set! (ly:music-property m 'duration) duration))))
- elts)
- (append! elts (ly:music-property repeat-chord 'elements))))
+ (let ((elts
+ (set-origin! (ly:music-deep-copy
+ (filter keep-element?
+ (ly:music-property original-chord
+ 'elements))))))
+ (for-each
+ (lambda (m)
+ (let ((arts (ly:music-property m 'articulations)))
+ (if (pair? arts)
+ (set! (ly:music-property m 'articulations)
+ (set-origin! (filter! keep-element? arts))))
+ (if (ly:duration? (ly:music-property m 'duration))
+ (set! (ly:music-property m 'duration) duration))))
+ elts)
+ (append! elts (ly:music-property repeat-chord 'elements))))
(let ((arts (filter keep-element?
- (ly:music-property original-chord
- 'articulations))))
+ (ly:music-property original-chord
+ 'articulations))))
(if (pair? arts)
- (set! (ly:music-property repeat-chord 'articulations)
- (append!
- (set-origin! (ly:music-deep-copy arts))
- (ly:music-property repeat-chord 'articulations))))))
+ (set! (ly:music-property repeat-chord 'articulations)
+ (append!
+ (set-origin! (ly:music-deep-copy arts))
+ (ly:music-property repeat-chord 'articulations))))))
(define-public (expand-repeat-chords! event-types music)
@@ -749,24 +737,24 @@ having a duration in @code{duration}) with the notes from their
respective predecessor chord."
(let loop ((music music) (last-chord #f))
(if (music-is-of-type? music 'event-chord)
- (let ((chord-repeat (ly:music-property music 'duration)))
- (cond
- ((not (ly:duration? chord-repeat))
- (if (any (lambda (m) (ly:duration?
- (ly:music-property m 'duration)))
- (ly:music-property music 'elements))
- music
- last-chord))
- (last-chord
- (set! (ly:music-property music 'duration) '())
- (copy-repeat-chord last-chord music chord-repeat event-types)
- music)
- (else
- (ly:music-warning music (_ "Bad chord repetition"))
- #f)))
- (let ((elt (ly:music-property music 'element)))
- (fold loop (if (ly:music? elt) (loop elt last-chord) last-chord)
- (ly:music-property music 'elements)))))
+ (let ((chord-repeat (ly:music-property music 'duration)))
+ (cond
+ ((not (ly:duration? chord-repeat))
+ (if (any (lambda (m) (ly:duration?
+ (ly:music-property m 'duration)))
+ (ly:music-property music 'elements))
+ music
+ last-chord))
+ (last-chord
+ (set! (ly:music-property music 'duration) '())
+ (copy-repeat-chord last-chord music chord-repeat event-types)
+ music)
+ (else
+ (ly:music-warning music (_ "Bad chord repetition"))
+ #f)))
+ (let ((elt (ly:music-property music 'element)))
+ (fold loop (if (ly:music? elt) (loop elt last-chord) last-chord)
+ (ly:music-property music 'elements)))))
music)
;;; splitting chords into voices.
@@ -781,17 +769,17 @@ NUMBER is 0-base, i.e., Voice=1 (upstems) has number 0.
(if (null? lst)
'()
(cons (context-spec-music
- (make-sequential-music
- (list (make-voice-props-set number)
- (make-simultaneous-music (car lst))))
- 'Bottom (number->string (1+ number)))
- (voicify-list (cdr lst) (1+ number)))))
+ (make-sequential-music
+ (list (make-voice-props-set number)
+ (make-simultaneous-music (car lst))))
+ 'Bottom (number->string (1+ number)))
+ (voicify-list (cdr lst) (1+ number)))))
(define (voicify-chord ch)
"Split the parts of a chord into different Voices using separator"
(let ((es (ly:music-property ch 'elements)))
(set! (ly:music-property ch 'elements)
- (voicify-list (split-list-by-separator es music-separator?) 0))
+ (voicify-list (split-list-by-separator es music-separator?) 0))
ch))
(define-public (voicify-music m)
@@ -799,15 +787,15 @@ NUMBER is 0-base, i.e., Voice=1 (upstems) has number 0.
(if (not (ly:music? m))
(ly:error (_ "music expected: ~S") m))
(let ((es (ly:music-property m 'elements))
- (e (ly:music-property m 'element)))
+ (e (ly:music-property m 'element)))
(if (pair? es)
- (set! (ly:music-property m 'elements) (map voicify-music es)))
+ (set! (ly:music-property m 'elements) (map voicify-music es)))
(if (ly:music? e)
- (set! (ly:music-property m 'element) (voicify-music e)))
+ (set! (ly:music-property m 'element) (voicify-music e)))
(if (and (equal? (ly:music-property m 'name) 'SimultaneousMusic)
- (reduce (lambda (x y ) (or x y)) #f (map music-separator? es)))
- (set! m (context-spec-music (voicify-chord m) 'Staff)))
+ (any music-separator? es))
+ (set! m (context-spec-music (voicify-chord m) 'Staff)))
m))
(define-public (empty-music)
@@ -828,7 +816,7 @@ NUMBER is 0-base, i.e., Voice=1 (upstems) has number 0.
@code{\\applyoutput #(set-output-property 'Clef 'extra-offset '(0 . 1))}"
(let ((meta (ly:grob-property grob 'meta)))
(if (equal? (assoc-get 'name meta) grob-name)
- (set! (ly:grob-property grob symbol) val))))
+ (set! (ly:grob-property grob symbol) val))))
(define-public (skip->rest mus)
@@ -836,39 +824,65 @@ NUMBER is 0-base, i.e., Voice=1 (upstems) has number 0.
@code{SkipEvent}. Useful for extracting parts from crowded scores."
(if (memq (ly:music-property mus 'name) '(SkipEvent SkipMusic))
- (make-music 'RestEvent 'duration (ly:music-property mus 'duration))
- mus))
+ (make-music 'RestEvent 'duration (ly:music-property mus 'duration))
+ mus))
(define-public (music-has-type music type)
(memq type (ly:music-property music 'types)))
-(define-public (music-clone music)
- (define (alist->args alist acc)
- (if (null? alist)
- acc
- (alist->args (cdr alist)
- (cons (caar alist) (cons (cdar alist) acc)))))
-
- (apply
- make-music
- (ly:music-property music 'name)
- (alist->args (ly:music-mutable-properties music) '())))
+(define-public (music-clone music . music-properties)
+ "Clone @var{music} and set properties according to
+@var{music-properties}, a list of alternating property symbols and
+values:
+@example\n(music-clone start-span 'span-direction STOP)
+@end example
+Only properties that are not overriden by @var{music-properties} are
+actually fully cloned."
+ (let ((old-props (list-copy (ly:music-mutable-properties music)))
+ (new-props '())
+ (m (ly:make-music (ly:prob-immutable-properties music))))
+ (define (set-props mus-props)
+ (if (and (not (null? mus-props))
+ (not (null? (cdr mus-props))))
+ (begin
+ (set! old-props (assq-remove! old-props (car mus-props)))
+ (set! new-props
+ (assq-set! new-props
+ (car mus-props) (cadr mus-props)))
+ (set-props (cddr mus-props)))))
+ (set-props music-properties)
+ (for-each
+ (lambda (pair)
+ (set! (ly:music-property m (car pair))
+ (ly:music-deep-copy (cdr pair))))
+ old-props)
+ (for-each
+ (lambda (pair)
+ (set! (ly:music-property m (car pair)) (cdr pair)))
+ new-props)
+ m))
;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;
;; warn for bare chords at start.
-(define-public (ly:music-message music msg)
+(define-public (ly:music-message music msg . rest)
(let ((ip (ly:music-property music 'origin)))
(if (ly:input-location? ip)
- (ly:input-message ip msg)
- (ly:message msg))))
+ (apply ly:input-message ip msg rest)
+ (apply ly:message msg rest))))
-(define-public (ly:music-warning music msg)
+(define-public (ly:music-warning music msg . rest)
(let ((ip (ly:music-property music 'origin)))
(if (ly:input-location? ip)
- (ly:input-warning ip msg)
- (ly:warning msg))))
+ (apply ly:input-warning ip msg rest)
+ (apply ly:warning msg rest))))
+
+(define-public (ly:event-warning event msg . rest)
+ (let ((ip (ly:event-property event 'origin)))
+ (if (ly:input-location? ip)
+ (apply ly:input-warning ip msg rest)
+ (apply ly:warning msg rest))))
;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;
;;
@@ -878,7 +892,7 @@ NUMBER is 0-base, i.e., Voice=1 (upstems) has number 0.
(define (vector-extend v x)
"Make a new vector consisting of V, with X added to the end."
(let* ((n (vector-length v))
- (nv (make-vector (+ n 1) '())))
+ (nv (make-vector (+ n 1) '())))
(vector-move-left! v 0 n nv 0)
(vector-set! nv n x)
nv))
@@ -899,12 +913,12 @@ NUMBER is 0-base, i.e., Voice=1 (upstems) has number 0.
(define-public (add-grace-property context-name grob sym val)
"Set @var{sym}=@var{val} for @var{grob} in @var{context-name}."
(define (set-prop context)
- (let* ((where (ly:context-property-where-defined context 'graceSettings))
- (current (ly:context-property where 'graceSettings))
- (new-settings (append current
- (list (list context-name grob sym val)))))
+ (let* ((where (or (ly:context-find context context-name) context))
+ (current (ly:context-property where 'graceSettings))
+ (new-settings (append current
+ (list (list context-name grob sym val)))))
(ly:context-set-property! where 'graceSettings new-settings)))
- (context-spec-music (make-apply-context set-prop) 'Voice))
+ (make-apply-context set-prop))
(define-public (remove-grace-property context-name grob sym)
"Remove all @var{sym} for @var{grob} in @var{context-name}."
@@ -913,18 +927,17 @@ NUMBER is 0-base, i.e., Voice=1 (upstems) has number 0.
(eq? (cadr property) grob)
(eq? (caddr property) sym)))
(define (delete-prop context)
- (let* ((where (ly:context-property-where-defined context 'graceSettings))
- (current (ly:context-property where 'graceSettings))
+ (let* ((where (or (ly:context-find context context-name) context))
+ (current (ly:context-property where 'graceSettings))
(prop-settings (filter
- (lambda(x) (sym-grob-context? x sym grob context-name))
- current))
- (new-settings current))
+ (lambda(x) (sym-grob-context? x sym grob context-name))
+ current))
+ (new-settings current))
(for-each (lambda(x)
- (set! new-settings (delete x new-settings)))
- prop-settings)
+ (set! new-settings (delete x new-settings)))
+ prop-settings)
(ly:context-set-property! where 'graceSettings new-settings)))
- (context-spec-music (make-apply-context delete-prop) 'Voice))
-
+ (make-apply-context delete-prop))
(defmacro-public def-grace-function (start stop . docstring)
@@ -932,11 +945,11 @@ NUMBER is 0-base, i.e., Voice=1 (upstems) has number 0.
`(define-music-function (parser location music) (ly:music?)
,@docstring
(make-music 'GraceMusic
- 'origin location
- 'element (make-music 'SequentialMusic
- 'elements (list (ly:music-deep-copy ,start)
- music
- (ly:music-deep-copy ,stop))))))
+ 'origin location
+ 'element (make-music 'SequentialMusic
+ 'elements (list (ly:music-deep-copy ,start)
+ music
+ (ly:music-deep-copy ,stop))))))
(defmacro-public define-syntax-function (type args signature . body)
"Helper macro for `ly:make-music-function'.
@@ -960,24 +973,37 @@ predicates require the parameter to be entered as Scheme expression.
predicates, to be used in case of a type error in arguments or
result."
+ (define (currying-lambda args doc-string? body)
+ (if (and (pair? args)
+ (pair? (car args)))
+ (currying-lambda (car args) doc-string?
+ `((lambda ,(cdr args) ,@body)))
+ (if doc-string?
+ `(lambda ,args ,doc-string? ,@body)
+ `(lambda ,args ,@body))))
+
(set! signature (map (lambda (pred)
- (if (pair? pred)
- `(cons ,(car pred)
- ,(and (pair? (cdr pred)) (cadr pred)))
- pred))
- (cons type signature)))
- (if (and (pair? body) (pair? (car body)) (eqv? '_i (caar body)))
- ;; When the music function definition contains a i10n doc string,
- ;; (_i "doc string"), keep the literal string only
- (let ((docstring (cadar body))
- (body (cdr body)))
- `(ly:make-music-function (list ,@signature)
- (lambda ,args
- ,docstring
- ,@body)))
- `(ly:make-music-function (list ,@signature)
- (lambda ,args
- ,@body))))
+ (if (pair? pred)
+ `(cons ,(car pred)
+ ,(and (pair? (cdr pred)) (cadr pred)))
+ pred))
+ (cons type signature)))
+
+ (let ((docstring
+ (and (pair? body) (pair? (cdr body))
+ (if (string? (car body))
+ (car body)
+ (and (pair? (car body))
+ (eq? '_i (caar body))
+ (pair? (cdar body))
+ (string? (cadar body))
+ (null? (cddar body))
+ (cadar body))))))
+ ;; When the music function definition contains an i10n doc string,
+ ;; (_i "doc string"), keep the literal string only
+ `(ly:make-music-function
+ (list ,@signature)
+ ,(currying-lambda args docstring (if docstring (cdr body) body)))))
(defmacro-public define-music-function rest
"Defining macro returning music functions.
@@ -1065,57 +1091,57 @@ set to the @code{location} parameter."
(if (vector? (ly:music-property quote-music 'quoted-events))
(let* ((dir (ly:music-property quote-music 'quoted-voice-direction))
- (clef (ly:music-property quote-music 'quoted-music-clef #f))
- (main-voice (case dir ((1) 1) ((-1) 0) (else #f)))
- (cue-voice (and main-voice (- 1 main-voice)))
- (main-music (ly:music-property quote-music 'element))
- (return-value quote-music))
-
- (if main-voice
- (set! (ly:music-property quote-music 'element)
- (make-sequential-music
- (list
- (make-voice-props-override main-voice)
- main-music
- (make-voice-props-revert)))))
-
- ;; if we have stem dirs, change both quoted and main music
- ;; to have opposite stems.
-
- ;; cannot context-spec Quote-music, since context
- ;; for the quotes is determined in the iterator.
-
- (make-sequential-music
- (delq! #f
- (list
- (and clef (make-cue-clef-set clef))
-
- ;; Need to establish CueVoice context even in #CENTER case
- (context-spec-music
- (if cue-voice
- (make-voice-props-override cue-voice)
- (make-music 'Music))
- 'CueVoice "cue")
- quote-music
- (and cue-voice
- (context-spec-music
- (make-voice-props-revert) 'CueVoice "cue"))
- (and clef (make-cue-clef-unset))))))
+ (clef (ly:music-property quote-music 'quoted-music-clef #f))
+ (main-voice (case dir ((1) 1) ((-1) 0) (else #f)))
+ (cue-voice (and main-voice (- 1 main-voice)))
+ (cue-type (ly:music-property quote-music 'quoted-context-type #f))
+ (cue-id (ly:music-property quote-music 'quoted-context-id))
+ (main-music (ly:music-property quote-music 'element))
+ (return-value quote-music))
+
+ (if main-voice
+ (set! (ly:music-property quote-music 'element)
+ (make-sequential-music
+ (list
+ (make-voice-props-override main-voice)
+ main-music
+ (make-voice-props-revert)))))
+
+ ;; if we have stem dirs, change both quoted and main music
+ ;; to have opposite stems.
+
+ ;; cannot context-spec Quote-music, since context
+ ;; for the quotes is determined in the iterator.
+
+ (make-sequential-music
+ (delq! #f
+ (list
+ (and clef (make-cue-clef-set clef))
+ (and cue-type cue-voice
+ (context-spec-music
+ (make-voice-props-override cue-voice)
+ cue-type cue-id))
+ quote-music
+ (and cue-type cue-voice
+ (context-spec-music
+ (make-voice-props-revert)
+ cue-type cue-id))
+ (and clef (make-cue-clef-unset))))))
quote-music))
(define-public ((quote-substitute quote-tab) music)
(let* ((quoted-name (ly:music-property music 'quoted-music-name))
- (quoted-vector (and (string? quoted-name)
- (hash-ref quote-tab quoted-name #f))))
+ (quoted-vector (and (string? quoted-name)
+ (hash-ref quote-tab quoted-name #f))))
(if (string? 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:music-warning music (ly:format (_ "cannot 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:music-warning music (ly:format (_ "cannot find quoted music: `~S'") quoted-name))))
music))
@@ -1133,8 +1159,8 @@ set to the @code{location} parameter."
(define found #f)
(define (signal m)
(if (and (ly:music? m)
- (eq? (ly:music-property m 'error-found) #t))
- (set! found #t)))
+ (eq? (ly:music-property m 'error-found) #t))
+ (set! found #t)))
(for-each signal (ly:music-property music 'elements))
(signal (ly:music-property music 'element))
@@ -1145,27 +1171,27 @@ set to the @code{location} parameter."
(define (precompute-music-length music)
(set! (ly:music-property music 'length)
- (ly:music-length music))
+ (ly:music-length music))
music)
(define-public (make-duration-of-length moment)
- "Make duration of the given @code{moment} length."
- (ly:make-duration 0 0
- (ly:moment-main-numerator moment)
- (ly:moment-main-denominator moment)))
+ "Make duration of the given @code{moment} length."
+ (ly:make-duration 0 0
+ (ly:moment-main-numerator moment)
+ (ly:moment-main-denominator moment)))
(define (make-skipped moment bool)
- "Depending on BOOL, set or unset skipTypesetting,
+ "Depending on BOOL, set or unset skipTypesetting,
then make SkipMusic of the given MOMENT length, and
then revert skipTypesetting."
- (make-sequential-music
- (list
- (context-spec-music (make-property-set 'skipTypesetting bool)
- 'Score)
- (make-music 'SkipMusic 'duration
- (make-duration-of-length moment))
- (context-spec-music (make-property-set 'skipTypesetting (not bool))
- 'Score))))
+ (make-sequential-music
+ (list
+ (context-spec-music (make-property-set 'skipTypesetting bool)
+ 'Score)
+ (make-music 'SkipMusic 'duration
+ (make-duration-of-length moment))
+ (context-spec-music (make-property-set 'skipTypesetting (not bool))
+ 'Score))))
(define (skip-as-needed music parser)
"Replace MUSIC by
@@ -1183,9 +1209,9 @@ then revert skipTypesetting."
((show-last (ly:parser-lookup parser 'showLastLength))
(show-first (ly:parser-lookup parser 'showFirstLength))
(show-last-length (and (ly:music? show-last)
- (ly:music-length show-last)))
+ (ly:music-length show-last)))
(show-first-length (and (ly:music? show-first)
- (ly:music-length show-first)))
+ (ly:music-length show-first)))
(orig-length (ly:music-length music)))
;;FIXME: if using either showFirst- or showLastLength,
@@ -1232,9 +1258,9 @@ then revert skipTypesetting."
(define-public toplevel-music-functions
(list
(lambda (music parser) (expand-repeat-chords!
- (cons 'rhythmic-event
- (ly:parser-lookup parser '$chord-repeat-events))
- music))
+ (cons 'rhythmic-event
+ (ly:parser-lookup parser '$chord-repeat-events))
+ music))
(lambda (music parser) (voicify-music music))
(lambda (x parser) (music-map music-check-error x))
(lambda (x parser) (music-map precompute-music-length x))
@@ -1247,7 +1273,7 @@ then revert skipTypesetting."
(lambda (x parser)
(skip-as-needed x parser)
- )))
+ )))
;;;;;;;;;;
;;; general purpose music functions
@@ -1255,9 +1281,9 @@ then revert skipTypesetting."
(define (shift-octave pitch octave-shift)
(_i "Add @var{octave-shift} to the octave of @var{pitch}.")
(ly:make-pitch
- (+ (ly:pitch-octave pitch) octave-shift)
- (ly:pitch-notename pitch)
- (ly:pitch-alteration pitch)))
+ (+ (ly:pitch-octave pitch) octave-shift)
+ (ly:pitch-notename pitch)
+ (ly:pitch-alteration pitch)))
;;;;;;;;;;;;;;;;;
@@ -1266,10 +1292,10 @@ then revert skipTypesetting."
(define (apply-durations lyric-music durations)
(define (apply-duration music)
(if (and (not (equal? (ly:music-length music) ZERO-MOMENT))
- (ly:duration? (ly:music-property music 'duration)))
- (begin
- (set! (ly:music-property music 'duration) (car durations))
- (set! durations (cdr durations)))))
+ (ly:duration? (ly:music-property music 'duration)))
+ (begin
+ (set! (ly:music-property music 'duration) (car durations))
+ (set! durations (cdr durations)))))
(music-map apply-duration lyric-music))
@@ -1291,16 +1317,16 @@ can be omitted when the same note occurs again.
Returns @code{#f} or the reason for the invalidation, a symbol."
(let* ((def (if (pair? alteration-def)
- (car alteration-def)
- alteration-def)))
+ (car alteration-def)
+ alteration-def)))
(and (symbol? def) def)))
(define (extract-alteration alteration-def)
(cond ((number? alteration-def)
- alteration-def)
- ((pair? alteration-def)
- (car alteration-def))
- (else 0)))
+ alteration-def)
+ ((pair? alteration-def)
+ (car alteration-def))
+ (else 0)))
(define (check-pitch-against-signature context pitch barnum laziness octaveness)
"Checks the need for an accidental and a @q{restore} accidental against
@@ -1311,50 +1337,50 @@ we cancel accidentals up to three measures after they first appear.
@var{octaveness} is either @code{'same-octave} or @code{'any-octave} and
specifies whether accidentals should be canceled in different octaves."
(let* ((ignore-octave (cond ((equal? octaveness 'any-octave) #t)
- ((equal? octaveness 'same-octave) #f)
- (else
- (ly:warning (_ "Unknown octaveness type: ~S ") octaveness)
- (ly:warning (_ "Defaulting to 'any-octave."))
- #t)))
- (key-sig (ly:context-property context 'keySignature))
- (local-key-sig (ly:context-property context 'localKeySignature))
- (notename (ly:pitch-notename pitch))
- (octave (ly:pitch-octave pitch))
- (pitch-handle (cons octave notename))
- (need-restore #f)
- (need-accidental #f)
- (previous-alteration #f)
- (from-other-octaves #f)
- (from-same-octave (assoc-get pitch-handle local-key-sig))
- (from-key-sig (or (assoc-get notename local-key-sig)
-
- ;; If no key signature match is found from localKeySignature, we may have a custom
- ;; type with octave-specific entries of the form ((octave . pitch) alteration)
- ;; instead of (pitch . alteration). Since this type cannot coexist with entries in
- ;; localKeySignature, try extracting from keySignature instead.
- (assoc-get pitch-handle key-sig))))
+ ((equal? octaveness 'same-octave) #f)
+ (else
+ (ly:warning (_ "Unknown octaveness type: ~S ") octaveness)
+ (ly:warning (_ "Defaulting to 'any-octave."))
+ #t)))
+ (key-sig (ly:context-property context 'keySignature))
+ (local-key-sig (ly:context-property context 'localKeySignature))
+ (notename (ly:pitch-notename pitch))
+ (octave (ly:pitch-octave pitch))
+ (pitch-handle (cons octave notename))
+ (need-restore #f)
+ (need-accidental #f)
+ (previous-alteration #f)
+ (from-other-octaves #f)
+ (from-same-octave (assoc-get pitch-handle local-key-sig))
+ (from-key-sig (or (assoc-get notename local-key-sig)
+
+ ;; If no key signature match is found from localKeySignature, we may have a custom
+ ;; type with octave-specific entries of the form ((octave . pitch) alteration)
+ ;; instead of (pitch . alteration). Since this type cannot coexist with entries in
+ ;; localKeySignature, try extracting from keySignature instead.
+ (assoc-get pitch-handle key-sig))))
;; loop through localKeySignature to search for a notename match from other octaves
(let loop ((l local-key-sig))
(if (pair? l)
- (let ((entry (car l)))
- (if (and (pair? (car entry))
- (= (cdar entry) notename))
- (set! from-other-octaves (cdr entry))
- (loop (cdr l))))))
+ (let ((entry (car l)))
+ (if (and (pair? (car entry))
+ (= (cdar entry) notename))
+ (set! from-other-octaves (cdr entry))
+ (loop (cdr l))))))
;; find previous alteration-def for comparison with pitch
(cond
;; from same octave?
((and (not ignore-octave)
- from-same-octave
- (recent-enough? barnum from-same-octave laziness))
+ from-same-octave
+ (recent-enough? barnum from-same-octave laziness))
(set! previous-alteration from-same-octave))
;; from any octave?
((and ignore-octave
- from-other-octaves
- (recent-enough? barnum from-other-octaves laziness))
+ from-other-octaves
+ (recent-enough? barnum from-other-octaves laziness))
(set! previous-alteration from-other-octaves))
;; not recent enough, extract from key signature/local key signature
@@ -1362,18 +1388,18 @@ specifies whether accidentals should be canceled in different octaves."
(set! previous-alteration from-key-sig)))
(if (accidental-invalid? previous-alteration)
- (set! need-accidental #t)
+ (set! need-accidental #t)
- (let* ((prev-alt (extract-alteration previous-alteration))
- (this-alt (ly:pitch-alteration pitch)))
+ (let* ((prev-alt (extract-alteration previous-alteration))
+ (this-alt (ly:pitch-alteration pitch)))
- (if (not (= this-alt prev-alt))
- (begin
- (set! need-accidental #t)
- (if (and (not (= this-alt 0))
- (and (< (abs this-alt) (abs prev-alt))
- (> (* prev-alt this-alt) 0)))
- (set! need-restore #t))))))
+ (if (not (= this-alt prev-alt))
+ (begin
+ (set! need-accidental #t)
+ (if (and (not (= this-alt 0))
+ (and (< (abs this-alt) (abs prev-alt))
+ (> (* prev-alt this-alt) 0)))
+ (set! need-restore #t))))))
(cons need-restore need-accidental)))
@@ -1434,8 +1460,8 @@ See @code{key-entry-notename} for details."
For convenience, returns @code{0} if entry is @code{#f}."
(if entry
(if (number? (cdr entry))
- (cdr entry)
- (cadr entry))
+ (cdr entry)
+ (cadr entry))
0))
(define-public (find-pitch-entry keysig pitch accept-global accept-local)
@@ -1445,17 +1471,17 @@ For convenience, returns @code{0} if entry is @code{#f}."
If no matching entry is found, @var{#f} is returned."
(and (pair? keysig)
(let* ((entry (car keysig))
- (entryoct (key-entry-octave entry))
- (entrynn (key-entry-notename entry))
- (nn (ly:pitch-notename pitch)))
- (if (and (equal? nn entrynn)
- (or (not entryoct)
- (= entryoct (ly:pitch-octave pitch)))
- (if (key-entry-bar-number entry)
- accept-local
- accept-global))
- entry
- (find-pitch-entry (cdr keysig) pitch accept-global accept-local)))))
+ (entryoct (key-entry-octave entry))
+ (entrynn (key-entry-notename entry))
+ (nn (ly:pitch-notename pitch)))
+ (if (and (equal? nn entrynn)
+ (or (not entryoct)
+ (= entryoct (ly:pitch-octave pitch)))
+ (if (key-entry-bar-number entry)
+ accept-local
+ accept-global))
+ entry
+ (find-pitch-entry (cdr keysig) pitch accept-global accept-local)))))
(define-public (neo-modern-accidental-rule context pitch barnum measurepos)
"An accidental rule that typesets an accidental if it differs from the
@@ -1463,39 +1489,39 @@ key signature @emph{and} does not directly follow a note on the same
staff line. This rule should not be used alone because it does neither
look at bar lines nor different accidentals at the same note name."
(let* ((keysig (ly:context-property context 'localKeySignature))
- (entry (find-pitch-entry keysig pitch #t #t)))
+ (entry (find-pitch-entry keysig pitch #t #t)))
(if (not entry)
- (cons #f #f)
- (let* ((global-entry (find-pitch-entry keysig pitch #t #f))
- (key-acc (key-entry-alteration global-entry))
- (acc (ly:pitch-alteration pitch))
- (entrymp (key-entry-measure-position entry))
- (entrybn (key-entry-bar-number entry)))
- (cons #f (not (or (equal? acc key-acc)
- (and (equal? entrybn barnum) (equal? entrymp measurepos)))))))))
+ (cons #f #f)
+ (let* ((global-entry (find-pitch-entry keysig pitch #t #f))
+ (key-acc (key-entry-alteration global-entry))
+ (acc (ly:pitch-alteration pitch))
+ (entrymp (key-entry-measure-position entry))
+ (entrybn (key-entry-bar-number entry)))
+ (cons #f (not (or (equal? acc key-acc)
+ (and (equal? entrybn barnum) (equal? entrymp measurepos)))))))))
(define-public (teaching-accidental-rule context pitch barnum measurepos)
"An accidental rule that typesets a cautionary accidental if it is
included in the key signature @emph{and} does not directly follow a note
on the same staff line."
(let* ((keysig (ly:context-property context 'localKeySignature))
- (entry (find-pitch-entry keysig pitch #t #t)))
+ (entry (find-pitch-entry keysig pitch #t #t)))
(if (not entry)
- (cons #f #f)
- (let* ((entrymp (key-entry-measure-position entry))
- (entrybn (key-entry-bar-number entry)))
- (cons #f (not (and (equal? entrybn barnum) (equal? entrymp measurepos))))))))
+ (cons #f #f)
+ (let* ((entrymp (key-entry-measure-position entry))
+ (entrybn (key-entry-bar-number entry)))
+ (cons #f (not (and (equal? entrybn barnum) (equal? entrymp measurepos))))))))
(define-public (set-accidentals-properties extra-natural
- auto-accs auto-cauts
- context)
+ auto-accs auto-cauts
+ context)
(context-spec-music
(make-sequential-music
(append (if (boolean? extra-natural)
- (list (make-property-set 'extraNatural extra-natural))
- '())
- (list (make-property-set 'autoAccidentals auto-accs)
- (make-property-set 'autoCautionaries auto-cauts))))
+ (list (make-property-set 'extraNatural extra-natural))
+ '())
+ (list (make-property-set 'autoAccidentals auto-accs)
+ (make-property-set 'autoCautionaries auto-cauts))))
context))
(define-public (set-accidental-style style . rest)
@@ -1504,163 +1530,163 @@ argument, e.g. @code{'Staff} or @code{'Voice}. The context defaults
to @code{Staff}, except for piano styles, which use @code{GrandStaff}
as a context."
(let ((context (if (pair? rest)
- (car rest) 'Staff))
- (pcontext (if (pair? rest)
- (car rest) 'GrandStaff)))
+ (car rest) 'Staff))
+ (pcontext (if (pair? rest)
+ (car rest) 'GrandStaff)))
(cond
- ;; accidentals as they were common in the 18th century.
- ((equal? style 'default)
- (set-accidentals-properties #t
- `(Staff ,(make-accidental-rule 'same-octave 0))
- '()
- context))
- ;; accidentals from one voice do NOT get canceled in other voices
- ((equal? style 'voice)
- (set-accidentals-properties #t
- `(Voice ,(make-accidental-rule 'same-octave 0))
- '()
- context))
- ;; accidentals as suggested by Kurt Stone, Music Notation in the 20th century.
- ;; This includes all the default accidentals, but accidentals also needs canceling
- ;; in other octaves and in the next measure.
- ((equal? style 'modern)
- (set-accidentals-properties #f
- `(Staff ,(make-accidental-rule 'same-octave 0)
- ,(make-accidental-rule 'any-octave 0)
- ,(make-accidental-rule 'same-octave 1))
- '()
- context))
- ;; the accidentals that Stone adds to the old standard as cautionaries
- ((equal? style 'modern-cautionary)
- (set-accidentals-properties #f
- `(Staff ,(make-accidental-rule 'same-octave 0))
- `(Staff ,(make-accidental-rule 'any-octave 0)
- ,(make-accidental-rule 'same-octave 1))
- context))
- ;; same as modern, but accidentals different from the key signature are always
- ;; typeset - unless they directly follow a note of the same pitch.
- ((equal? style 'neo-modern)
- (set-accidentals-properties #f
- `(Staff ,(make-accidental-rule 'same-octave 0)
- ,(make-accidental-rule 'any-octave 0)
- ,(make-accidental-rule 'same-octave 1)
- ,neo-modern-accidental-rule)
- '()
- context))
- ((equal? style 'neo-modern-cautionary)
- (set-accidentals-properties #f
- `(Staff ,(make-accidental-rule 'same-octave 0))
- `(Staff ,(make-accidental-rule 'any-octave 0)
- ,(make-accidental-rule 'same-octave 1)
- ,neo-modern-accidental-rule)
- context))
- ((equal? style 'neo-modern-voice)
- (set-accidentals-properties #f
- `(Voice ,(make-accidental-rule 'same-octave 0)
- ,(make-accidental-rule 'any-octave 0)
- ,(make-accidental-rule 'same-octave 1)
- ,neo-modern-accidental-rule
- Staff ,(make-accidental-rule 'same-octave 0)
- ,(make-accidental-rule 'any-octave 0)
- ,(make-accidental-rule 'same-octave 1)
- ,neo-modern-accidental-rule)
- '()
- context))
- ((equal? style 'neo-modern-voice-cautionary)
- (set-accidentals-properties #f
- `(Voice ,(make-accidental-rule 'same-octave 0))
- `(Voice ,(make-accidental-rule 'any-octave 0)
- ,(make-accidental-rule 'same-octave 1)
- ,neo-modern-accidental-rule
- Staff ,(make-accidental-rule 'same-octave 0)
- ,(make-accidental-rule 'any-octave 0)
- ,(make-accidental-rule 'same-octave 1)
- ,neo-modern-accidental-rule)
- context))
- ;; Accidentals as they were common in dodecaphonic music with no tonality.
- ;; Each note gets one accidental.
- ((equal? style 'dodecaphonic)
- (set-accidentals-properties #f
- `(Staff ,(lambda (c p bn mp) '(#f . #t)))
- '()
- context))
- ;; Multivoice accidentals to be read both by musicians playing one voice
- ;; and musicians playing all voices.
- ;; Accidentals are typeset for each voice, but they ARE canceled across voices.
- ((equal? style 'modern-voice)
- (set-accidentals-properties #f
- `(Voice ,(make-accidental-rule 'same-octave 0)
- ,(make-accidental-rule 'any-octave 0)
- ,(make-accidental-rule 'same-octave 1)
- Staff ,(make-accidental-rule 'same-octave 0)
- ,(make-accidental-rule 'any-octave 0)
- ,(make-accidental-rule 'same-octave 1))
- '()
- context))
- ;; same as modernVoiceAccidental eccept that all special accidentals are typeset
- ;; as cautionaries
- ((equal? style 'modern-voice-cautionary)
- (set-accidentals-properties #f
- `(Voice ,(make-accidental-rule 'same-octave 0))
- `(Voice ,(make-accidental-rule 'any-octave 0)
- ,(make-accidental-rule 'same-octave 1)
- Staff ,(make-accidental-rule 'same-octave 0)
- ,(make-accidental-rule 'any-octave 0)
- ,(make-accidental-rule 'same-octave 1))
- context))
- ;; stone's suggestions for accidentals on grand staff.
- ;; Accidentals are canceled across the staves in the same grand staff as well
- ((equal? style 'piano)
- (set-accidentals-properties #f
- `(Staff ,(make-accidental-rule 'same-octave 0)
- ,(make-accidental-rule 'any-octave 0)
- ,(make-accidental-rule 'same-octave 1)
- GrandStaff
- ,(make-accidental-rule 'any-octave 0)
- ,(make-accidental-rule 'same-octave 1))
- '()
- pcontext))
- ((equal? style 'piano-cautionary)
- (set-accidentals-properties #f
- `(Staff ,(make-accidental-rule 'same-octave 0))
- `(Staff ,(make-accidental-rule 'any-octave 0)
- ,(make-accidental-rule 'same-octave 1)
- GrandStaff
- ,(make-accidental-rule 'any-octave 0)
- ,(make-accidental-rule 'same-octave 1))
- pcontext))
-
- ;; same as modern, but cautionary accidentals are printed for all sharp or flat
- ;; tones specified by the key signature.
- ((equal? style 'teaching)
- (set-accidentals-properties #f
- `(Staff ,(make-accidental-rule 'same-octave 0))
- `(Staff ,(make-accidental-rule 'same-octave 1)
- ,teaching-accidental-rule)
- context))
-
- ;; do not set localKeySignature when a note alterated differently from
- ;; localKeySignature is found.
- ;; Causes accidentals to be printed at every note instead of
- ;; remembered for the duration of a measure.
- ;; accidentals not being remembered, causing accidentals always to
- ;; be typeset relative to the time signature
- ((equal? style 'forget)
- (set-accidentals-properties '()
- `(Staff ,(make-accidental-rule 'same-octave -1))
- '()
- context))
- ;; Do not reset the key at the start of a measure. Accidentals will be
- ;; printed only once and are in effect until overridden, possibly many
- ;; measures later.
- ((equal? style 'no-reset)
- (set-accidentals-properties '()
- `(Staff ,(make-accidental-rule 'same-octave #t))
- '()
- context))
- (else
- (ly:warning (_ "unknown accidental style: ~S") style)
- (make-sequential-music '())))))
+ ;; accidentals as they were common in the 18th century.
+ ((equal? style 'default)
+ (set-accidentals-properties #t
+ `(Staff ,(make-accidental-rule 'same-octave 0))
+ '()
+ context))
+ ;; accidentals from one voice do NOT get canceled in other voices
+ ((equal? style 'voice)
+ (set-accidentals-properties #t
+ `(Voice ,(make-accidental-rule 'same-octave 0))
+ '()
+ context))
+ ;; accidentals as suggested by Kurt Stone, Music Notation in the 20th century.
+ ;; This includes all the default accidentals, but accidentals also needs canceling
+ ;; in other octaves and in the next measure.
+ ((equal? style 'modern)
+ (set-accidentals-properties #f
+ `(Staff ,(make-accidental-rule 'same-octave 0)
+ ,(make-accidental-rule 'any-octave 0)
+ ,(make-accidental-rule 'same-octave 1))
+ '()
+ context))
+ ;; the accidentals that Stone adds to the old standard as cautionaries
+ ((equal? style 'modern-cautionary)
+ (set-accidentals-properties #f
+ `(Staff ,(make-accidental-rule 'same-octave 0))
+ `(Staff ,(make-accidental-rule 'any-octave 0)
+ ,(make-accidental-rule 'same-octave 1))
+ context))
+ ;; same as modern, but accidentals different from the key signature are always
+ ;; typeset - unless they directly follow a note of the same pitch.
+ ((equal? style 'neo-modern)
+ (set-accidentals-properties #f
+ `(Staff ,(make-accidental-rule 'same-octave 0)
+ ,(make-accidental-rule 'any-octave 0)
+ ,(make-accidental-rule 'same-octave 1)
+ ,neo-modern-accidental-rule)
+ '()
+ context))
+ ((equal? style 'neo-modern-cautionary)
+ (set-accidentals-properties #f
+ `(Staff ,(make-accidental-rule 'same-octave 0))
+ `(Staff ,(make-accidental-rule 'any-octave 0)
+ ,(make-accidental-rule 'same-octave 1)
+ ,neo-modern-accidental-rule)
+ context))
+ ((equal? style 'neo-modern-voice)
+ (set-accidentals-properties #f
+ `(Voice ,(make-accidental-rule 'same-octave 0)
+ ,(make-accidental-rule 'any-octave 0)
+ ,(make-accidental-rule 'same-octave 1)
+ ,neo-modern-accidental-rule
+ Staff ,(make-accidental-rule 'same-octave 0)
+ ,(make-accidental-rule 'any-octave 0)
+ ,(make-accidental-rule 'same-octave 1)
+ ,neo-modern-accidental-rule)
+ '()
+ context))
+ ((equal? style 'neo-modern-voice-cautionary)
+ (set-accidentals-properties #f
+ `(Voice ,(make-accidental-rule 'same-octave 0))
+ `(Voice ,(make-accidental-rule 'any-octave 0)
+ ,(make-accidental-rule 'same-octave 1)
+ ,neo-modern-accidental-rule
+ Staff ,(make-accidental-rule 'same-octave 0)
+ ,(make-accidental-rule 'any-octave 0)
+ ,(make-accidental-rule 'same-octave 1)
+ ,neo-modern-accidental-rule)
+ context))
+ ;; Accidentals as they were common in dodecaphonic music with no tonality.
+ ;; Each note gets one accidental.
+ ((equal? style 'dodecaphonic)
+ (set-accidentals-properties #f
+ `(Staff ,(lambda (c p bn mp) '(#f . #t)))
+ '()
+ context))
+ ;; Multivoice accidentals to be read both by musicians playing one voice
+ ;; and musicians playing all voices.
+ ;; Accidentals are typeset for each voice, but they ARE canceled across voices.
+ ((equal? style 'modern-voice)
+ (set-accidentals-properties #f
+ `(Voice ,(make-accidental-rule 'same-octave 0)
+ ,(make-accidental-rule 'any-octave 0)
+ ,(make-accidental-rule 'same-octave 1)
+ Staff ,(make-accidental-rule 'same-octave 0)
+ ,(make-accidental-rule 'any-octave 0)
+ ,(make-accidental-rule 'same-octave 1))
+ '()
+ context))
+ ;; same as modernVoiceAccidental eccept that all special accidentals are typeset
+ ;; as cautionaries
+ ((equal? style 'modern-voice-cautionary)
+ (set-accidentals-properties #f
+ `(Voice ,(make-accidental-rule 'same-octave 0))
+ `(Voice ,(make-accidental-rule 'any-octave 0)
+ ,(make-accidental-rule 'same-octave 1)
+ Staff ,(make-accidental-rule 'same-octave 0)
+ ,(make-accidental-rule 'any-octave 0)
+ ,(make-accidental-rule 'same-octave 1))
+ context))
+ ;; stone's suggestions for accidentals on grand staff.
+ ;; Accidentals are canceled across the staves in the same grand staff as well
+ ((equal? style 'piano)
+ (set-accidentals-properties #f
+ `(Staff ,(make-accidental-rule 'same-octave 0)
+ ,(make-accidental-rule 'any-octave 0)
+ ,(make-accidental-rule 'same-octave 1)
+ GrandStaff
+ ,(make-accidental-rule 'any-octave 0)
+ ,(make-accidental-rule 'same-octave 1))
+ '()
+ pcontext))
+ ((equal? style 'piano-cautionary)
+ (set-accidentals-properties #f
+ `(Staff ,(make-accidental-rule 'same-octave 0))
+ `(Staff ,(make-accidental-rule 'any-octave 0)
+ ,(make-accidental-rule 'same-octave 1)
+ GrandStaff
+ ,(make-accidental-rule 'any-octave 0)
+ ,(make-accidental-rule 'same-octave 1))
+ pcontext))
+
+ ;; same as modern, but cautionary accidentals are printed for all sharp or flat
+ ;; tones specified by the key signature.
+ ((equal? style 'teaching)
+ (set-accidentals-properties #f
+ `(Staff ,(make-accidental-rule 'same-octave 0))
+ `(Staff ,(make-accidental-rule 'same-octave 1)
+ ,teaching-accidental-rule)
+ context))
+
+ ;; do not set localKeySignature when a note alterated differently from
+ ;; localKeySignature is found.
+ ;; Causes accidentals to be printed at every note instead of
+ ;; remembered for the duration of a measure.
+ ;; accidentals not being remembered, causing accidentals always to
+ ;; be typeset relative to the time signature
+ ((equal? style 'forget)
+ (set-accidentals-properties '()
+ `(Staff ,(make-accidental-rule 'same-octave -1))
+ '()
+ context))
+ ;; Do not reset the key at the start of a measure. Accidentals will be
+ ;; printed only once and are in effect until overridden, possibly many
+ ;; measures later.
+ ((equal? style 'no-reset)
+ (set-accidentals-properties '()
+ `(Staff ,(make-accidental-rule 'same-octave #t))
+ '()
+ context))
+ (else
+ (ly:warning (_ "unknown accidental style: ~S") style)
+ (make-sequential-music '())))))
(define-public (invalidate-alterations context)
"Invalidate alterations in @var{context}.
@@ -1674,31 +1700,31 @@ to force a repetition of accidentals.
Entries that conform with the current key signature are not invalidated."
(let* ((keysig (ly:context-property context 'keySignature)))
(set! (ly:context-property context 'localKeySignature)
- (map-in-order
- (lambda (entry)
- (let* ((localalt (key-entry-alteration entry)))
- (if (or (accidental-invalid? localalt)
- (not (key-entry-bar-number entry))
- (= localalt
- (key-entry-alteration
- (find-pitch-entry
- keysig
- (ly:make-pitch (key-entry-octave entry)
- (key-entry-notename entry)
- 0)
- #t #t))))
- entry
- (cons (car entry) (cons 'clef (cddr entry))))))
- (ly:context-property context 'localKeySignature)))))
+ (map-in-order
+ (lambda (entry)
+ (let* ((localalt (key-entry-alteration entry)))
+ (if (or (accidental-invalid? localalt)
+ (not (key-entry-bar-number entry))
+ (= localalt
+ (key-entry-alteration
+ (find-pitch-entry
+ keysig
+ (ly:make-pitch (key-entry-octave entry)
+ (key-entry-notename entry)
+ 0)
+ #t #t))))
+ entry
+ (cons (car entry) (cons 'clef (cddr entry))))))
+ (ly:context-property context 'localKeySignature)))))
;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;
(define-public (skip-of-length mus)
"Create a skip of exactly the same length as @var{mus}."
(let* ((skip
- (make-music
- 'SkipEvent
- 'duration (ly:make-duration 0 0))))
+ (make-music
+ 'SkipEvent
+ 'duration (ly:make-duration 0 0))))
(make-event-chord (list (ly:music-compress skip (ly:music-length mus))))))
@@ -1706,62 +1732,66 @@ Entries that conform with the current key signature are not invalidated."
"Create a multi-measure rest of exactly the same length as @var{mus}."
(let* ((skip
- (make-multi-measure-rest
- (ly:make-duration 0 0) '())))
+ (make-multi-measure-rest
+ (ly:make-duration 0 0) '())))
(ly:music-compress skip (ly:music-length mus))
skip))
(define-public (pitch-of-note event-chord)
(let ((evs (filter (lambda (x)
- (music-has-type x 'note-event))
- (ly:music-property event-chord 'elements))))
+ (music-has-type x 'note-event))
+ (ly:music-property event-chord 'elements))))
(and (pair? evs)
- (ly:music-property (car evs) 'pitch))))
+ (ly:music-property (car evs) 'pitch))))
(define-public (duration-of-note event-chord)
(cond
((pair? event-chord)
(or (duration-of-note (car event-chord))
- (duration-of-note (cdr event-chord))))
+ (duration-of-note (cdr event-chord))))
((ly:music? event-chord)
(let ((dur (ly:music-property event-chord 'duration)))
(if (ly:duration? dur)
- dur
- (duration-of-note (ly:music-property event-chord 'elements)))))
+ dur
+ (duration-of-note (ly:music-property event-chord 'elements)))))
(else #f)))
;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;
(define-public (map-some-music map? music)
"Walk through @var{music}, transform all elements calling @var{map?}
-and only recurse if this returns @code{#f}."
+and only recurse if this returns @code{#f}. @code{elements} or
+@code{articulations} that are not music expressions are discarded:
+this allows some amount of filtering.
+
+@code{map-some-music} may overwrite the original @var{music}."
(let loop ((music music))
(or (map? music)
- (let ((elt (ly:music-property music 'element))
- (elts (ly:music-property music 'elements))
- (arts (ly:music-property music 'articulations)))
- (if (ly:music? elt)
- (set! (ly:music-property music 'element)
- (loop elt)))
- (if (pair? elts)
- (set! (ly:music-property music 'elements)
- (map loop elts)))
- (if (pair? arts)
- (set! (ly:music-property music 'articulations)
- (map loop arts)))
- music))))
+ (let ((elt (ly:music-property music 'element))
+ (elts (ly:music-property music 'elements))
+ (arts (ly:music-property music 'articulations)))
+ (if (ly:music? elt)
+ (set! (ly:music-property music 'element)
+ (loop elt)))
+ (if (pair? elts)
+ (set! (ly:music-property music 'elements)
+ (filter! ly:music? (map! loop elts))))
+ (if (pair? arts)
+ (set! (ly:music-property music 'articulations)
+ (filter! ly:music? (map! loop arts))))
+ music))))
(define-public (for-some-music stop? music)
"Walk through @var{music}, process all elements calling @var{stop?}
and only recurse if this returns @code{#f}."
(let loop ((music music))
(if (not (stop? music))
- (let ((elt (ly:music-property music 'element)))
- (if (ly:music? elt)
- (loop elt))
- (for-each loop (ly:music-property music 'elements))
- (for-each loop (ly:music-property music 'articulations))))))
+ (let ((elt (ly:music-property music 'element)))
+ (if (ly:music? elt)
+ (loop elt))
+ (for-each loop (ly:music-property music 'elements))
+ (for-each loop (ly:music-property music 'articulations))))))
(define-public (fold-some-music pred? proc init music)
"This works recursively on music like @code{fold} does on a list,
@@ -1773,15 +1803,15 @@ and no recursion happens.
The top @var{music} is processed using @var{init} for @samp{previous}."
(let loop ((music music) (previous init))
(if (pred? music)
- (proc music previous)
- (fold loop
- (fold loop
- (let ((elt (ly:music-property music 'element)))
- (if (null? elt)
- previous
- (loop elt previous)))
- (ly:music-property music 'elements))
- (ly:music-property music 'articulations)))))
+ (proc music previous)
+ (fold loop
+ (fold loop
+ (let ((elt (ly:music-property music 'element)))
+ (if (null? elt)
+ previous
+ (loop elt previous)))
+ (ly:music-property music 'elements))
+ (ly:music-property music 'articulations)))))
(define-public (extract-music music pred?)
"Return a flat list of all music matching @var{pred?} inside of
@@ -1806,7 +1836,7 @@ recursing into matches themselves."
music
(if (cheap-list? type)
(lambda (m)
- (any (lambda (t) (music-is-of-type? m t)) type))
+ (any (lambda (t) (music-is-of-type? m t)) type))
(lambda (m) (music-is-of-type? m type)))))
(define*-public (event-chord-wrap! music #:optional parser)
@@ -1818,44 +1848,78 @@ yourself."
(map-some-music
(lambda (m)
(cond ((music-is-of-type? m 'event-chord)
- (if (pair? (ly:music-property m 'articulations))
- (begin
- (set! (ly:music-property m 'elements)
- (append (ly:music-property m 'elements)
- (ly:music-property m 'articulations)))
- (set! (ly:music-property m 'articulations) '())))
- m)
- ((music-is-of-type? m 'rhythmic-event)
- (let ((arts (ly:music-property m 'articulations)))
- (if (pair? arts)
- (set! (ly:music-property m 'articulations) '()))
- (make-event-chord (cons m arts))))
- (else #f)))
+ (if (pair? (ly:music-property m 'articulations))
+ (begin
+ (set! (ly:music-property m 'elements)
+ (append (ly:music-property m 'elements)
+ (ly:music-property m 'articulations)))
+ (set! (ly:music-property m 'articulations) '())))
+ m)
+ ((music-is-of-type? m 'rhythmic-event)
+ (let ((arts (ly:music-property m 'articulations)))
+ (if (pair? arts)
+ (set! (ly:music-property m 'articulations) '()))
+ (make-event-chord (cons m arts))))
+ (else #f)))
(if parser
(expand-repeat-chords!
- (cons 'rhythmic-event
- (ly:parser-lookup parser '$chord-repeat-events))
- music)
+ (cons 'rhythmic-event
+ (ly:parser-lookup parser '$chord-repeat-events))
+ music)
music)))
(define-public (event-chord-notes event-chord)
"Return a list of all notes from @var{event-chord}."
(filter
- (lambda (m) (eq? 'NoteEvent (ly:music-property m 'name)))
- (ly:music-property event-chord 'elements)))
+ (lambda (m) (eq? 'NoteEvent (ly:music-property m 'name)))
+ (ly:music-property event-chord 'elements)))
(define-public (event-chord-pitches event-chord)
"Return a list of all pitches from @var{event-chord}."
(map (lambda (x) (ly:music-property x 'pitch))
(event-chord-notes event-chord)))
-;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;
-; The following functions are all associated with the crossStaff
-; function
+(defmacro-public make-relative (pitches last-pitch music)
+ "The list of pitch-carrying variables in @var{pitches} is used as a
+sequence for creating relativable music from @var{music}.
+The variables in @var{pitches} are, when considered inside of
+@code{\\relative}, all considered to be specifications to the preceding
+variable. The first variable is relative to the preceding musical
+context, and @var{last-pitch} specifies the pitch passed as relative
+base onto the following musical context."
+
+ ;; pitch and music generator might be stored instead in music
+ ;; properties, and it might make sense to create a music type of its
+ ;; own for this kind of construct rather than using
+ ;; RelativeOctaveMusic
+ (define ((make-relative::to-relative-callback pitches p->m p->p) music pitch)
+ (let* ((chord (make-event-chord
+ (map
+ (lambda (p)
+ (make-music 'NoteEvent
+ 'pitch p))
+ pitches)))
+ (pitchout (begin
+ (ly:make-music-relative! chord pitch)
+ (event-chord-pitches chord))))
+ (set! (ly:music-property music 'element)
+ (apply p->m pitchout))
+ (apply p->p pitchout)))
+ `(make-music 'RelativeOctaveMusic
+ 'to-relative-callback
+ (,make-relative::to-relative-callback
+ (list ,@pitches)
+ (lambda ,pitches ,music)
+ (lambda ,pitches ,last-pitch))
+ 'element ,music))
+
+;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;
+;; The following functions are all associated with the crossStaff
+;; function
(define (close-enough? x y)
"Values are close enough to ignore the difference"
- (< (abs (- x y)) 0.0001))
+ (< (abs (- x y)) 0.0001))
(define (extent-combine extents)
"Combine a list of extents"
@@ -1865,51 +1929,51 @@ yourself."
(define ((stem-connectable? ref root) stem)
"Check if the stem is connectable to the root"
- ; The root is always connectable to itself
+ ;; The root is always connectable to itself
(or (eq? root stem)
(and
- ; Horizontal positions of the stems must be almost the same
- (close-enough? (car (ly:grob-extent root ref X))
- (car (ly:grob-extent stem ref X)))
- ; The stem must be in the direction away from the root's notehead
- (positive? (* (ly:grob-property root 'direction)
+ ;; Horizontal positions of the stems must be almost the same
+ (close-enough? (car (ly:grob-extent root ref X))
+ (car (ly:grob-extent stem ref X)))
+ ;; The stem must be in the direction away from the root's notehead
+ (positive? (* (ly:grob-property root 'direction)
(- (car (ly:grob-extent stem ref Y))
- (car (ly:grob-extent root ref Y))))))))
+ (car (ly:grob-extent root ref Y))))))))
(define (stem-span-stencil span)
"Connect stems if we have at least one stem connectable to the root"
(let* ((system (ly:grob-system span))
- (root (ly:grob-parent span X))
- (stems (filter (stem-connectable? system root)
- (ly:grob-object span 'stems))))
- (if (<= 2 (length stems))
- (let* ((yextents (map (lambda (st)
- (ly:grob-extent st system Y)) stems))
- (yextent (extent-combine yextents))
- (layout (ly:grob-layout root))
- (blot (ly:output-def-lookup layout 'blot-diameter)))
- ; Hide spanned stems
- (map (lambda (st)
- (set! (ly:grob-property st 'transparent) #t))
- stems)
- ; Draw a nice looking stem with rounded corners
- (ly:round-filled-box (ly:grob-extent root root X) yextent blot))
- ; Nothing to connect, don't draw the span
- #f)))
+ (root (ly:grob-parent span X))
+ (stems (filter (stem-connectable? system root)
+ (ly:grob-object span 'stems))))
+ (if (<= 2 (length stems))
+ (let* ((yextents (map (lambda (st)
+ (ly:grob-extent st system Y)) stems))
+ (yextent (extent-combine yextents))
+ (layout (ly:grob-layout root))
+ (blot (ly:output-def-lookup layout 'blot-diameter)))
+ ;; Hide spanned stems
+ (for-each (lambda (st)
+ (set! (ly:grob-property st 'stencil) #f))
+ stems)
+ ;; Draw a nice looking stem with rounded corners
+ (ly:round-filled-box (ly:grob-extent root root X) yextent blot))
+ ;; Nothing to connect, don't draw the span
+ #f)))
(define ((make-stem-span! stems trans) root)
"Create a stem span as a child of the cross-staff stem (the root)"
(let ((span (ly:engraver-make-grob trans 'Stem '())))
(ly:grob-set-parent! span X root)
(set! (ly:grob-object span 'stems) stems)
- ; Suppress positioning, the stem code is confused by this weird stem
+ ;; Suppress positioning, the stem code is confused by this weird stem
(set! (ly:grob-property span 'X-offset) 0)
(set! (ly:grob-property span 'stencil) stem-span-stencil)))
(define-public (cross-staff-connect stem)
"Set cross-staff property of the stem to this function to connect it to
other stems automatically"
- #t)
+ #t)
(define (stem-is-root? stem)
"Check if automatic connecting of the stem was requested. Stems connected
@@ -1919,24 +1983,24 @@ other stems just because of that."
(define (make-stem-spans! ctx stems trans)
"Create stem spans for cross-staff stems"
- ; Cannot do extensive checks here, just make sure there are at least
- ; two stems at this musical moment
+ ;; Cannot do extensive checks here, just make sure there are at least
+ ;; two stems at this musical moment
(if (<= 2 (length stems))
- (let ((roots (filter stem-is-root? stems)))
- (map (make-stem-span! stems trans) roots))))
+ (let ((roots (filter stem-is-root? stems)))
+ (for-each (make-stem-span! stems trans) roots))))
(define-public (Span_stem_engraver ctx)
"Connect cross-staff stems to the stems above in the system"
(let ((stems '()))
(make-engraver
- ; Record all stems for the given moment
- (acknowledgers
- ((stem-interface trans grob source)
- (set! stems (cons grob stems))))
- ; Process stems and reset the stem list to empty
- ((process-acknowledged trans)
- (make-stem-spans! ctx stems trans)
- (set! stems '())))))
+ ;; Record all stems for the given moment
+ (acknowledgers
+ ((stem-interface trans grob source)
+ (set! stems (cons grob stems))))
+ ;; Process stems and reset the stem list to empty
+ ((process-acknowledged trans)
+ (make-stem-spans! ctx stems trans)
+ (set! stems '())))))
;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;
;; The following is used by the alterBroken function.
@@ -1947,49 +2011,166 @@ of list @var{arg}."
(let* ((orig (ly:grob-original grob))
(siblings (ly:spanner-broken-into orig)))
- (define (helper sibs arg)
- (if (null? arg)
- arg
- (if (eq? (car sibs) grob)
- (car arg)
- (helper (cdr sibs) (cdr arg)))))
+ (define (helper sibs arg)
+ (if (null? arg)
+ arg
+ (if (eq? (car sibs) grob)
+ (car arg)
+ (helper (cdr sibs) (cdr arg)))))
- (if (>= (length siblings) 2)
- (helper siblings arg)
- (car arg))))
+ (if (>= (length siblings) 2)
+ (helper siblings arg)
+ (car arg))))
;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;
;; measure counter
(define (measure-counter-stencil grob)
- "Create a number for a measure count. The number is centered using
-the extents of the @code{BreakAlignment} grobs associated with the
-@code{NonMusicalPaperColumn} grobs which form the left and right bounds
-of the spanner."
- (let* ((cols (ly:grob-object grob 'columns))
- (refp (ly:grob-common-refpoint-of-array grob cols X))
- (col-list (ly:grob-array->list cols))
- (elts-L (ly:grob-array->list (ly:grob-object (car col-list) 'elements)))
- (elts-R (ly:grob-array->list (ly:grob-object (cadr col-list) 'elements)))
+ "Print a number for a measure count. The number is centered using
+the extents of @code{BreakAlignment} grobs associated with
+@code{NonMusicalPaperColumn} grobs. In the case of an unbroken measure, these
+columns are the left and right bounds of a @code{MeasureCounter} spanner.
+Broken measures are numbered in parentheses."
+ (let* ((orig (ly:grob-original grob))
+ (siblings (ly:spanner-broken-into orig)) ; have we been split?
+ (bounds (ly:grob-array->list (ly:grob-object grob 'columns)))
+ (refp (ly:grob-system grob))
+ ;; we use the first and/or last NonMusicalPaperColumn grob(s) of
+ ;; a system in the event that a MeasureCounter spanner is broken
+ (all-cols (ly:grob-array->list (ly:grob-object refp 'columns)))
+ (all-cols
+ (filter
+ (lambda (col) (eq? #t (ly:grob-property col 'non-musical)))
+ all-cols))
+ (left-bound
+ (if (or (null? siblings) ; spanner is unbroken
+ (eq? grob (car siblings))) ; or the first piece
+ (car bounds)
+ (car all-cols)))
+ (right-bound
+ (if (or (null? siblings)
+ (eq? grob (car (reverse siblings))))
+ (car (reverse bounds))
+ (car (reverse all-cols))))
+ (elts-L (ly:grob-array->list (ly:grob-object left-bound 'elements)))
+ (elts-R (ly:grob-array->list (ly:grob-object right-bound 'elements)))
(break-alignment-L
- (filter
- (lambda (elt) (grob::has-interface elt 'break-alignment-interface))
- elts-L))
+ (filter
+ (lambda (elt) (grob::has-interface elt 'break-alignment-interface))
+ elts-L))
(break-alignment-R
- (filter
- (lambda (elt) (grob::has-interface elt 'break-alignment-interface))
- elts-R))
+ (filter
+ (lambda (elt) (grob::has-interface elt 'break-alignment-interface))
+ elts-R))
(break-alignment-L-ext (ly:grob-extent (car break-alignment-L) refp X))
(break-alignment-R-ext (ly:grob-extent (car break-alignment-R) refp X))
- (counter (ly:grob-property grob 'count-from))
- (num (grob-interpret-markup grob (markup (number->string counter))))
+ (num (markup (number->string (ly:grob-property grob 'count-from))))
+ (num
+ (if (or (null? siblings)
+ (eq? grob (car siblings)))
+ num
+ (make-parenthesize-markup num)))
+ (num (grob-interpret-markup grob num))
(num (ly:stencil-aligned-to num X (ly:grob-property grob 'self-alignment-X)))
(num
- (ly:stencil-translate-axis
- num
- (+ (interval-length break-alignment-L-ext)
- (* 0.5
- (- (car break-alignment-R-ext)
- (cdr break-alignment-L-ext))))
- X)))
+ (ly:stencil-translate-axis
+ num
+ (+ (interval-length break-alignment-L-ext)
+ (* 0.5
+ (- (car break-alignment-R-ext)
+ (cdr break-alignment-L-ext))))
+ X)))
num))
+
+;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;
+;; The following are used by the \offset function
+
+(define (find-value-to-offset prop self alist)
+ "Return the first value of the property @var{prop} in the property
+alist @var{alist} -- after having found @var{self}. If @var{self} is
+not found, return the first value of @var{prop}."
+ (let ((segment (member (cons prop self) alist)))
+ (if (not segment)
+ (assoc-get prop alist)
+ (assoc-get prop (cdr segment)))))
+
+(define (offset-multiple-types arg offsets)
+ "Displace @var{arg} by @var{offsets} if @var{arg} is a number, a
+number pair, or a list of number pairs. If @var{offsets} is an empty
+list or if there is a type-mismatch, @var{arg} will be returned."
+ (cond
+ ((and (number? arg) (number? offsets))
+ (+ arg offsets))
+ ((and (number-pair? arg)
+ (or (number? offsets)
+ (number-pair? offsets)))
+ (coord-translate arg offsets))
+ ((and (number-pair-list? arg) (number-pair-list? offsets))
+ (map
+ (lambda (x y) (coord-translate x y))
+ arg offsets))
+ (else arg)))
+
+(define-public (offsetter property offsets)
+ "Apply @var{offsets} to the default values of @var{property} of @var{grob}.
+Offsets are restricted to immutable properties and values of type @code{number},
+@code{number-pair}, or @code{number-pair-list}."
+ (define (self grob)
+ (let* ((immutable (ly:grob-basic-properties grob))
+ ; We need to search the basic-properties alist for our property to
+ ; obtain values to offset. Our search is complicated by the fact that
+ ; calling the music function `offset' as an override conses a pair to
+ ; the head of the alist. This pair must be discounted. The closure it
+ ; contains is named `self' so it can be easily recognized. If `offset'
+ ; is called as a tweak, the basic-property alist is unaffected.
+ (target (find-value-to-offset property self immutable))
+ ; if target is a procedure, we need to apply it to our grob to calculate
+ ; values to offset.
+ (vals
+ (if (procedure? target)
+ (target grob)
+ target))
+ (can-type-be-offset?
+ (or (number? vals)
+ (number-pair? vals)
+ (number-pair-list? vals))))
+
+ (if can-type-be-offset?
+ ; '(+inf.0 . -inf.0) would offset to itself. This will be confusing to a
+ ; user unaware of the default value of the property, so issue a warning.
+ (if (equal? empty-interval vals)
+ (ly:warning "default '~a of ~a is ~a and can't be offset"
+ property grob vals)
+ (let* ((orig (ly:grob-original grob))
+ (siblings
+ (if (ly:spanner? grob)
+ (ly:spanner-broken-into orig)
+ '()))
+ (total-found (length siblings))
+ ; Since there is some flexibility in input syntax,
+ ; structure of `offsets' is normalized.
+ (offsets
+ (if (or (not (pair? offsets))
+ (number-pair? offsets)
+ (and (number-pair-list? offsets)
+ (number-pair-list? vals)))
+ (list offsets)
+ offsets)))
+
+ (define (helper sibs offs)
+ ; apply offsets to the siblings of broken spanners
+ (if (pair? offs)
+ (if (eq? (car sibs) grob)
+ (offset-multiple-types vals (car offs))
+ (helper (cdr sibs) (cdr offs)))
+ vals))
+
+ (if (>= total-found 2)
+ (helper siblings offsets)
+ (offset-multiple-types vals (car offsets)))))
+
+ (begin
+ (ly:warning "the property '~a of ~a cannot be offset" property grob)
+ vals))))
+ ; return the closure named `self'
+ self)