--- /dev/null
+\version "1.7.27"
+\header {
+ title = "Puer natus est nobis"
+ subtitle = "Antiphona ad introitum VII"
+ texidoc = "
+
+Demonstrate gregorian chant notation
+
+This file pretty nicely demonstrates what still does
+not work among ligatures: (i) horizontal spacing between ligatures and
+lyrics aligment is broken; (ii) the clef does not show on each line;
+(iii) lily crashes when removing Stem_engraver, but still using
+Slur_engraver (this is useful needed for the \addlyrics feature when
+no slurs are to be typeset); (iv) episem causes a parse error (this
+used to work a while ago); (v) pitches are typeset half a staff space
+too high (the second note is a d, but it appears on the line of the do
+clef; this bug must have been introduced only recently); (vi) support
+for augmentum dots is missing; (vii) accidentals must be placed before
+the ligature (not demonstrated in this example)."
+
+}
+
+\include "paper26.ly"
+\include "gregorian-init.ly"
+
+%%% N.B.: Yes, I know, the formatting of the following looks awful,
+%%% but this is intentional for editorial purposes (simplifies some
+%%% global search/replace operations in emacs).
+
+cantus = \notes \transpose c c {
+ \[ g4
+ ( %%% Pu-
+ \pes
+ d'-)
+ \]
+ d' %%% er
+ \[ d'
+ ( %%% na-
+ \pes e' \flexa
+ d'-)
+ \]
+ c' %%% tus
+ \[ c'
+ ( %%% est
+ c'
+ c'-)
+ \]
+ \[ d'
+ ( %%% no-
+ \flexa c' e' \flexa
+ d'
+ d'-) %%% bis,
+ \]
+ \divisioMaior
+ \[ g
+ ( %%% et
+ \pes
+ d'-)
+ \]
+ \[ d'
+ ( %%% fi-
+ \pes e' \flexa
+ d'-)
+ \]
+ \[ c'
+ ( %%% li-
+ \flexa
+ b-)
+ \]
+ a %%% us
+ \[ c'
+ ( %%% da-
+ c' \pes
+ d'-)
+ \]
+ c' %%% tus-
+ c' %%% est
+ \[ c'
+ ( %%% no-
+ \pes d' \flexa c'
+ c'-)
+ \]
+ \[ g
+ ( %%% bis:
+ \pes a \flexa
+ g-)
+ \]
+ \divisioMaxima
+ g %%% cu-
+ a %%% us
+ c' %%% im-
+ \[ b
+ ( %%% pe-
+ \pes d' e' \pes
+ f'-)
+ \]
+ \[ d'
+ ( %%% ri-
+ \flexa
+ c'-)
+ \]
+ c' %%% um
+}
+
+verba = \context Lyrics = verba \lyrics {
+ Pu- er na- tus est no- bis,
+ et fi- li- us da- tus est no- bis:
+ cu- ius im- pe- ri- um
+}
+
+\score {
+ \context StaffGroup <
+ \context VaticanaStaff <
+ \context VaticanaVoice <
+ \addlyrics
+ \cantus
+ \verba
+ >
+ >
+ >
+ \paper {
+ stafflinethickness = \staffspace / 5.0
+ linewidth = 137.0\mm
+ width = 137.0\mm
+ indent = 0.0
+ raggedright = ##t
+ packed = ##t
+% width = 15.0 \cm %%% no effect?
+
+ \translator {
+ \VoiceContext
+ \name VaticanaVoice
+ \alias Voice
+
+ % Can not `\remove "Slur_engraver"', since \addlyrics needs
+ % slurs working. Hence, set slurs transparent instead.
+ Slur \override #'transparent = ##t
+
+ % N.B.: Warnings of the type "Degenerate bow: infinite steepness
+ % reqd" arise from the fact that all noteheads of a ligature are
+ % in the same paper column. Therefore, the (transparent) slurs
+ % often start and end in the same column, producing the above
+ % warning. TODO: supress this warning; we need slurs only for
+ % \addlyrics, not for printing.
+
+ % `\remove "Stem_engraver"' currently produces a crash (see
+ % below). Hence, set stems transparent instead.
+ Stem \set #'transparent = ##t
+ % \remove "Stem_engraver"
+
+%{
+
+FIXME:
+
+When removing Stem_engraver from VoiceContext (but still using
+Slur_engraver), lily will crash while trying to typeset slurs, since
+`()' is not a valid stem:
+
+In unknown file:
+ ?: 0* [Slur::after_line_breaking #<Grob Slur >]
+ ?: 1* [#<procedure #f (slur dir)> #<Grob Slur > -1]
+In /home/reuter/project/lilypond-1.7/share/lilypond/scm/slur.scm:
+ 43: 2* [not ...
+ 43: 3* [attached-to-stem #<Grob Slur > -1]
+ 10: 4 (let* ((note-columns #) (col #) (stem #)) (and (eq? col #) stem ...))
+ ...
+ 16: 5 [ly:get-grob-property () heads]
+
+/home/reuter/project/lilypond-1.7/share/lilypond/scm/slur.scm:16:6: In procedure ly_get_grob_property in expression (ly:get-grob-property stem (quote heads)):
+/home/reuter/project/lilypond-1.7/share/lilypond/scm/slur.scm:16:6: Wrong type argument in position 1 (expecting grob): ()
+
+%}
+
+ \remove Ligature_bracket_engraver
+ \consists Vaticana_ligature_engraver
+ NoteHead \set #'style = #'vaticana_punctum
+ Script \set #'padding = #0.0
+
+ % prepare TextSpanner for \episem{Initium|Finis} use
+ TextSpanner \set #'style = #'line
+ TextSpanner \set #'edge-height = #'(0 . 0)
+ TextSpanner \set #'padding = #0.5
+ TextSpanner \set #'edge-text = #'("" . "")
+ }
+ \translator {
+ \VoiceContext
+ \name GregorianTransciptionVoice
+ \alias Voice
+ Stem \set #'transparent = ##t
+ % \remove "Stem_engraver"
+ % Slur \override #'transparent = ##t
+ \remove "Slur_engraver"
+ }
+ \translator {
+ \StaffContext
+ \name GregorianTranscriptionStaff
+ \alias Staff
+ \accepts GregorianTranscriptionVoice
+ BarLine \override #'transparent = ##t
+ }
+ \translator {
+ \StaffContext
+ \name VaticanaStaff
+ \alias Staff
+ \accepts VaticanaVoice
+ \remove Bar_engraver
+ \consists Custos_engraver
+ clefGlyph = #"clefs-vaticana_do"
+ centralCPosition = #0
+ clefPosition = #1
+ clefOctavation = #0
+ StaffSymbol \set #'line-count = #4
+ StaffSymbol \set #'width = #60.0 % FIXME: unit should be \linewidth
+ TimeSignature \set #'transparent = ##t
+ KeySignature \set #'style = #'vaticana
+ Accidental \set #'style = #'vaticana
+ Custos \set #'style = #'vaticana
+ Custos \set #'neutral-position = #3
+ Custos \set #'neutral-direction = #-1
+ Custos \set #'adjust-if-on-staffline = ##t
+ }
+ \translator {
+ \HaraKiriStaffContext
+ \accepts VaticanaVoice
+ \accepts GregorianTranscriptionVoice
+ }
+ \translator {
+ \ScoreContext
+ \accepts VaticanaStaff
+ \accepts GregorianTranscriptionStaff
+ \remove Bar_number_engraver
+% SpacingSpanner \set #'spacing-increment = #0.5
+ timing = ##f
+
+ % Don't do this except for transcription -- it will produce
+ % additional space
+ barAlways = ##t
+% skipBars = ##t
+ }
+ }
+}
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