;;; define-music-display-methods.scm -- data for displaying music
;;; expressions using LilyPond notation.
;;;
-;;; Copyright (C) 2005--2010 Nicolas Sceaux <nicolas.sceaux@free.fr>
+;;; Copyright (C) 2005--2011 Nicolas Sceaux <nicolas.sceaux@free.fr>
;;;
;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;
;;;
(define-public (markup->lily-string markup-expr)
- "Return a string describing, in LilyPond syntax, the given markup expression."
+ "Return a string describing, in LilyPond syntax, the given markup
+expression."
(define (proc->command proc)
(let ((cmd-markup (symbol->string (procedure-name proc))))
(substring cmd-markup 0 (- (string-length cmd-markup)
(music
'SlurEvent
span-direction START))))))
- #t)
+ #t)
(with-music-match (?stop (music
'SequentialMusic
elements ((music
grob-property-path '(stroke-style)
grob-value "grace"
symbol 'Stem)))))
- #t)
+ #t)
(with-music-match (?stop (music
'SequentialMusic
elements ((music
(music->lily-string (car elements) parser)
(if (and (not (null? simple-elements))
(null? (cdr simple-elements))
- ;; special case: if this simple_element has a HarmonicEvent in its
- ;; 'articulations list, it should be interpreted instead as a
- ;; note_chord_element, since \harmonic only works inside chords,
- ;; even for single notes, e.g., < c\harmonic >
- (null? (filter (make-music-type-predicate 'HarmonicEvent)
+ ;; special case: if this simple_element has any post_events in
+ ;; its 'articulations list, it should be interpreted instead
+ ;; as a note_chord_element to prevent spurious output, e.g.,
+ ;; \displayLilyMusic < c-1\4 >8 -> c-1\48
+ (null? (filter post-event?
(ly:music-property (car simple-elements) 'articulations))))
;; simple_element : note | figure | rest | mmrest | lyric_element | skip
(let* ((simple-element (car simple-elements))
"\\melismaEnd"))
;;; \tempo
-;;; Check for all three different syntaxes of tempo:
-;;; \tempo string duration=note, \tempo duration=note and \tempo string
-(define-extra-display-method ContextSpeccedMusic (expr parser)
- "If expr is a tempo, return \"\\tempo x = nnn\", otherwise return #f."
- (or (with-music-match (expr (music 'ContextSpeccedMusic
- element (music 'SequentialMusic
- elements ((music 'PropertySet
- value ?unit-text
- symbol 'tempoText)
- (music 'PropertySet
- symbol 'tempoWholesPerMinute)
- (music 'PropertySet
- value ?unit-duration
- symbol 'tempoUnitDuration)
- (music 'PropertySet
- value ?unit-count
- symbol 'tempoUnitCount)))))
- (format #f "\\tempo ~a ~a = ~a"
- (scheme-expr->lily-string ?unit-text)
- (duration->lily-string ?unit-duration #:force-duration #t)
- ?unit-count))
- (with-music-match (expr (music 'ContextSpeccedMusic
- element (music 'SequentialMusic
- elements ((music 'PropertyUnset
- symbol 'tempoText)
- (music 'PropertySet
- symbol 'tempoWholesPerMinute)
- (music 'PropertySet
- value ?unit-duration
- symbol 'tempoUnitDuration)
- (music 'PropertySet
- value ?unit-count
- symbol 'tempoUnitCount)))))
- (format #f "\\tempo ~a = ~a"
- (duration->lily-string ?unit-duration #:force-duration #t)
- ?unit-count))
- (with-music-match (expr (music 'ContextSpeccedMusic
- element (music 'SequentialMusic
- elements ((music 'PropertySet
- value ?tempo-text
- symbol 'tempoText)))))
- (format #f "\\tempo ~a" (scheme-expr->lily-string ?tempo-text)))))
+(define-extra-display-method SequentialMusic (expr parser)
+ (with-music-match (expr (music 'SequentialMusic
+ elements ((music 'TempoChangeEvent
+ text ?text
+ tempo-unit ?unit
+ metronome-count ?count)
+ (music 'ContextSpeccedMusic
+ element (music 'PropertySet
+ symbol 'tempoWholesPerMinute)))))
+ (format #f "\\tempo ~{~a~a~}~a = ~a~a"
+ (if (markup? ?text)
+ (list (markup->lily-string ?text) " ")
+ '())
+ (duration->lily-string ?unit #:force-duration #t)
+ (if (pair? ?count)
+ (format #f "~a ~~ ~a" (car ?count) (cdr ?count))
+ ?count)
+ (new-line->lily-string))))
+
+(define-display-method TempoChangeEvent (expr parser)
+ (let ((text (ly:music-property expr 'text)))
+ (format #f "\\tempo ~a~a"
+ (markup->lily-string text)
+ (new-line->lily-string))))
;;; \clef
(define clef-name-alist #f)
(define-public (memoize-clef-names clefs)
- "Initialize `clef-name-alist', if not already set."
+ "Initialize @code{clef-name-alist}, if not already set."
(if (not clef-name-alist)
(set! clef-name-alist
(map (lambda (name+vals)
clefs))))
(define-extra-display-method ContextSpeccedMusic (expr parser)
- "If `expr' is a clef change, return \"\\clef ...\"
-Otherwise, return #f."
+ "If @var{expr} is a clef change, return \"\\clef ...\".
+Otherwise, return @code{#f}."
(with-music-match (expr (music 'ContextSpeccedMusic
context-type 'Staff
element (music 'SequentialMusic
(music 'ApplyContext
procedure ly:set-middle-C!)))))
(let ((clef-name (assoc-get (list ?clef-glyph ?clef-position 0)
- clef-name-alist)))
+ clef-name-alist)))
(if clef-name
(format #f "\\clef \"~a~{~a~a~}\"~a"
clef-name
element (music 'PropertySet
value ?bar-type
symbol 'whichBar)))
- (format #f "\\bar \"~a\"~a" ?bar-type (new-line->lily-string))))
+ (format #f "\\bar \"~a\"~a" ?bar-type (new-line->lily-string))))
;;; \partial
-
(define-extra-display-method ContextSpeccedMusic (expr parser)
"If `expr' is a partial measure, return \"\\partial ...\".
Otherwise, return #f."
'PartialSet
partial-duration ?duration))))
- (and ?duration
- (format #f "\\partial ~a"
- (duration->lily-string ?duration #:force-duration #t)))))
+ (and ?duration
+ (format #f "\\partial ~a"
+ (duration->lily-string ?duration #:force-duration #t)))))
;;;
;;;
projects / lilypond.git / blobdiff