This file is indexed.

/usr/share/lilypond/2.18.2/scm/parser-clef.scm is in lilypond-data 2.18.2-4.1.

This file is owned by root:root, with mode 0o644.

The actual contents of the file can be viewed below.

  1
  2
  3
  4
  5
  6
  7
  8
  9
 10
 11
 12
 13
 14
 15
 16
 17
 18
 19
 20
 21
 22
 23
 24
 25
 26
 27
 28
 29
 30
 31
 32
 33
 34
 35
 36
 37
 38
 39
 40
 41
 42
 43
 44
 45
 46
 47
 48
 49
 50
 51
 52
 53
 54
 55
 56
 57
 58
 59
 60
 61
 62
 63
 64
 65
 66
 67
 68
 69
 70
 71
 72
 73
 74
 75
 76
 77
 78
 79
 80
 81
 82
 83
 84
 85
 86
 87
 88
 89
 90
 91
 92
 93
 94
 95
 96
 97
 98
 99
100
101
102
103
104
105
106
107
108
109
110
111
112
113
114
115
116
117
118
119
120
121
122
123
124
125
126
127
128
129
130
131
132
133
134
135
136
137
138
139
140
141
142
143
144
145
146
147
148
149
150
151
152
153
154
155
156
157
158
159
160
161
162
163
164
165
166
167
168
169
170
171
172
173
174
175
176
177
178
179
180
181
182
183
184
185
186
187
188
189
190
191
192
193
194
195
196
197
198
199
200
201
202
203
204
205
;;;; This file is part of LilyPond, the GNU music typesetter.
;;;;
;;;; Copyright (C) 2004--2012 Han-Wen Nienhuys <hanwen@xs4all.nl>
;;;;
;;;; LilyPond is free software: you can redistribute it and/or modify
;;;; it under the terms of the GNU General Public License as published by
;;;; the Free Software Foundation, either version 3 of the License, or
;;;; (at your option) any later version.
;;;;
;;;; LilyPond is distributed in the hope that it will be useful,
;;;; but WITHOUT ANY WARRANTY; without even the implied warranty of
;;;; MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
;;;; GNU General Public License for more details.
;;;;
;;;; You should have received a copy of the GNU General Public License
;;;; along with LilyPond.  If not, see <http://www.gnu.org/licenses/>.


;; (name . (glyph clef-position transposition))
;;
;; -- the name clefTransposition is a bit misleading. Value 7 means
;; a transposition of an octave, not a seventh.
(define-public supported-clefs
  '(("treble" . ("clefs.G" -2 0))
    ("violin" . ("clefs.G" -2 0))
    ("G" . ("clefs.G" -2 0))
    ("G2" . ("clefs.G" -2 0))
    ("french" . ("clefs.G" -4 0))
    ("soprano" . ("clefs.C" -4 0))
    ("mezzosoprano" . ("clefs.C" -2 0))
    ("alto" . ("clefs.C" 0 0))
    ("C" . ("clefs.C" 0 0))
    ("tenor" . ("clefs.C" 2 0))
    ("baritone" . ("clefs.C" 4 0))
    ("varbaritone" . ("clefs.F" 0 0))
    ("bass" . ("clefs.F" 2 0))
    ("F" . ("clefs.F" 2 0))
    ("subbass" . ("clefs.F" 4 0))
    ("percussion" . ("clefs.percussion" 0 0))
    ("tab" . ("clefs.tab" 0 0))

    ;; should move mensural stuff to separate file?
    ("vaticana-do1" . ("clefs.vaticana.do" -1 0))
    ("vaticana-do2" . ("clefs.vaticana.do" 1 0))
    ("vaticana-do3" . ("clefs.vaticana.do" 3 0))
    ("vaticana-fa1" . ("clefs.vaticana.fa" -1 0))

    ("vaticana-fa2" . ("clefs.vaticana.fa" 1 0))
    ("medicaea-do1" . ("clefs.medicaea.do" -1 0))
    ("medicaea-do2" . ("clefs.medicaea.do" 1 0))
    ("medicaea-do3" . ("clefs.medicaea.do" 3 0))
    ("medicaea-fa1" . ("clefs.medicaea.fa" -1 0))
    ("medicaea-fa2" . ("clefs.medicaea.fa" 1 0))
    ("hufnagel-do1" . ("clefs.hufnagel.do" -1 0))
    ("hufnagel-do2" . ("clefs.hufnagel.do" 1 0))
    ("hufnagel-do3" . ("clefs.hufnagel.do" 3 0))
    ("hufnagel-fa1" . ("clefs.hufnagel.fa" -1 0))
    ("hufnagel-fa2" . ("clefs.hufnagel.fa" 1 0))
    ("hufnagel-do-fa" . ("clefs.hufnagel.do.fa" 4 0))
    ("mensural-c1" . ("clefs.mensural.c" -4 0))
    ("mensural-c2" . ("clefs.mensural.c" -2 0))
    ("mensural-c3" . ("clefs.mensural.c" 0 0))
    ("mensural-c4" . ("clefs.mensural.c" 2 0))
    ("mensural-c5" . ("clefs.mensural.c" 4 0))
    ("blackmensural-c1" . ("clefs.blackmensural.c" -4 0))
    ("blackmensural-c2" . ("clefs.blackmensural.c" -2 0))
    ("blackmensural-c3" . ("clefs.blackmensural.c" 0 0))
    ("blackmensural-c4" . ("clefs.blackmensural.c" 2 0))
    ("blackmensural-c5" . ("clefs.blackmensural.c" 4 0))
    ("mensural-f" . ("clefs.mensural.f" 2 0))
    ("mensural-g" . ("clefs.mensural.g" -2 0))
    ("neomensural-c1" . ("clefs.neomensural.c" -4 0))
    ("neomensural-c2" . ("clefs.neomensural.c" -2 0))
    ("neomensural-c3" . ("clefs.neomensural.c" 0 0))
    ("neomensural-c4" . ("clefs.neomensural.c" 2 0))
    ("neomensural-c5" . ("clefs.neomensural.c" 4 0))
    ("petrucci-c1" . ("clefs.petrucci.c1" -4 0))
    ("petrucci-c2" . ("clefs.petrucci.c2" -2 0))
    ("petrucci-c3" . ("clefs.petrucci.c3" 0 0))
    ("petrucci-c4" . ("clefs.petrucci.c4" 2 0))
    ("petrucci-c5" . ("clefs.petrucci.c5" 4 0))
    ("petrucci-f3" . ("clefs.petrucci.f" 0 0))
    ("petrucci-f4" . ("clefs.petrucci.f" 2 0))
    ("petrucci-f5" . ("clefs.petrucci.f" 4 0))
    ("petrucci-f" . ("clefs.petrucci.f" 2 0))
    ("petrucci-g" . ("clefs.petrucci.g" -2 0))
    ("kievan-do" . ("clefs.kievan.do" 0 0))))

;; "an alist mapping GLYPHNAME to the position of the middle C for
;; that symbol"
(define c0-pitch-alist
  '(("clefs.G" . -4)
    ("clefs.C" . 0)
    ("clefs.F" . 4)
    ("clefs.percussion" . 0)
    ("clefs.tab" . 0 )
    ("clefs.vaticana.do" . 0)
    ("clefs.vaticana.fa" . 4)
    ("clefs.medicaea.do" . 0)
    ("clefs.medicaea.fa" . 4)
    ("clefs.hufnagel.do" . 0)
    ("clefs.hufnagel.fa" . 4)
    ("clefs.hufnagel.do.fa" . 0)
    ("clefs.mensural.c" . 0)
    ("clefs.mensural.f" . 4)
    ("clefs.mensural.g" . -4)
    ("clefs.blackmensural.c" . 0)
    ("clefs.neomensural.c" . 0)
    ("clefs.petrucci.c1" . 0)
    ("clefs.petrucci.c2" . 0)
    ("clefs.petrucci.c3" . 0)
    ("clefs.petrucci.c4" . 0)
    ("clefs.petrucci.c5" . 0)
    ("clefs.petrucci.f" . 4)
    ("clefs.petrucci.g" . -4)
    ("clefs.kievan.do" . 0)))

(define-public (make-clef-set clef-name)
  "Generate the clef setting commands for a clef with name @var{clef-name}."
  (define (make-prop-set props)
    (let ((m (make-music 'PropertySet)))
      (for-each (lambda (x) (set! (ly:music-property m (car x)) (cdr x))) props)
      m))
  (let ((e '())
        (c0 0)
        (oct 0)
        (style 'default)
        (match (string-match "^(.*)([_^])([^0-9a-zA-Z]*)([1-9][0-9]*)([^0-9a-zA-Z]*)$" clef-name)))
    (if match
        (begin
          (set! clef-name (match:substring match 1))
          (set! oct
                (* (if (equal? (match:substring match 2) "^") -1 1)
                   (- (string->number (match:substring match 4)) 1)))
          (set! style
                (cond ((equal? (match:substring match 3) "(") 'parenthesized)
                      ((equal? (match:substring match 3) "[") 'bracketed)
                      (else style)))))
    (set! e (assoc-get clef-name supported-clefs))
    (if e
        (let* ((prop-list `(((symbol . clefGlyph) (value . ,(car e)))
                            ((symbol . middleCClefPosition)
                             (value . ,(+ oct
                                          (cadr e)
                                          (assoc-get (car e) c0-pitch-alist))))
                            ((symbol . clefPosition) (value . ,(cadr e)))
                            ((symbol . clefTransposition) (value . ,(- oct)))))
               ;; the clefTranspositionStyle property is set only when
               ;; not 'default to calm display-lily-tests.scm
               (prop-list (if (eq? style 'default)
                              prop-list
                              (append
                               prop-list
                               `(((symbol . clefTranspositionStyle)
                                  (value . ,style))))))
               (musics (map make-prop-set prop-list))
               (recalc-mid-C (make-music 'ApplyContext))
               (seq (make-music 'SequentialMusic
                                'elements (append musics (list recalc-mid-C))))
               (csp (make-music 'ContextSpeccedMusic)))
          (set! (ly:music-property recalc-mid-C 'procedure) ly:set-middle-C!)
          (context-spec-music seq 'Staff))
        (begin
          (ly:warning (_ "unknown clef type `~a'") clef-name)
          (ly:warning (_ "supported clefs: ~a")
                      (string-join
                       (sort (map car supported-clefs) string<?)))
          (make-music 'Music)))))

(define-public (make-cue-clef-set clef-name)
  "Generate the clef setting commands for a cue clef with name
@var{clef-name}."
  (define cue-clef-map
    '((clefGlyph . cueClefGlyph)
      (middleCClefPosition . middleCCuePosition)
      (clefPosition . cueClefPosition)
      (clefTransposition . cueClefTransposition)
      (clefTranspositionStyle . cueClefTranspositionStyle)))
  (let ((clef (make-clef-set clef-name)))
    (for-each
     (lambda (m)
       (let ((mapped (assq-ref cue-clef-map
                               (ly:music-property m 'symbol))))
         (if mapped
             (set! (ly:music-property m 'symbol) mapped))))
     (extract-named-music clef 'PropertySet))
    clef))

(define-public (make-cue-clef-unset)
  "Reset the clef settings for a cue clef."
  (map-some-music
   (lambda (m)
     (and (eq? (ly:music-property m 'name) 'PropertySet)
          (make-music 'PropertyUnset
                      'symbol (ly:music-property m 'symbol))))
   (make-cue-clef-set "treble_(8)")))

;; a function to add new clefs at runtime
(define-public (add-new-clef clef-name clef-glyph clef-position transposition c0-position)
  "Append the entries for a clef symbol to supported clefs and
@code{c0-pitch-alist}."
  (set! supported-clefs
        (acons clef-name (list clef-glyph clef-position transposition) supported-clefs))
  (set! c0-pitch-alist
        (acons clef-glyph c0-position c0-pitch-alist)))