* Documentation/user/refman.itely (Repeat syntax): more updates

* lily/simple-spacer.cc (solve): move solution process into
solve(). This fixes a bug with collisions and raggedright = ##t.

diff --git a/Documentation/user/refman.itely b/Documentation/user/refman.itely
index 131f8e81f6b5e733c06a9ca324a57984069a3764..bb77fe89c70fbd5de58d0c36dc25d0cfe3e012b8 100644 (file)
--- a/Documentation/user/refman.itely
+++ b/Documentation/user/refman.itely
@@ -1810,11 +1810,26 @@ using @code{^} and @code{_}.
 
 @lilypondfile[notexidoc]{script-chart.ly}
 
+@seealso
+
+@internalsref{ScriptEvent}, @internalsref{Script}.
+
+@refbugs
+
+All of these note ornaments appear in the printed output but have no
+effect on the MIDI rendering of the music.
+
+
+@node Fingering instructions
+@section Fingering instructions
 
 @cindex fingering
 
-Fingering instructions can also be entered in this shorthand. For
-finger changes, use markup texts:
+Fingering instructions can be entered using
+@example
+  @var{note}-@var{digit}
+@end example
+For finger changes, use markup texts:
 @c
 @lilypond[verbatim, singleline, fragment]
       c'4-1 c'4-2 c'4-3 c'4-4
@@ -1831,20 +1846,14 @@ finger changes, use markup texts:
        \property Voice.fingerHorizontalDirection = #LEFT
        << c-1  es-3 g-5 >> 4
        \property Voice.fingerHorizontalDirection = #RIGHT
-       << c-1  e-2 g-3 b-5 >> 4-\arpeggio
+       << c-1  e-2 g-3 b-5 >>4
        \property Voice.fingerHorizontalDirection = #LEFT
-       << c_1  e-2 g-3 b^5 >> 4
+       << c_1  e-2 g-3 b^5 >>4
 @end lilypond
         
 @seealso
 
-@internalsref{ScriptEvent}, 
-@internalsref{Script}, @internalsref{FingerEvent} and @internalsref{Fingering}.
-
-@refbugs
-
-All of these note ornaments appear in the printed output but have no
-effect on the MIDI rendering of the music.
+@internalsref{FingerEvent} and @internalsref{Fingering}.
 
 
 @node Text scripts
@@ -1920,14 +1929,13 @@ staves.
 
 Unbeamed eighth notes and shorter by default have a slash through the
 stem. This can be controlled with object property @code{stroke-style} of
-@internalsref{Stem}. The change in formatting is accomplished by
-inserting @code{\startGraceMusic} before handling the grace notes, and
-@code{\stopGraceMusic} after finishing the grace notes.
-You can add to these definitions to globally change grace note
-formatting. The standard definitions are in @file{ly/grace-init.ly}.
-
-[TODO discuss Scheme functionality.]
+@internalsref{Stem}. For proper  matching of override and reverts of
+such properties, it is necessary to use a Scheme function.
 
+The following fragment overrides the default formatting Grace style stems.
+@example
+  #(add-to-grace-init "Voice" 'Stem  'stroke-style '())
+@end example
 
 The @code{\override} is carefully matched with a @code{\revert}.
 
@@ -1945,8 +1953,6 @@ The @code{\override} is carefully matched with a @code{\revert}.
 }
 @end lilypond
 
-
-
 If you want to end a note with a grace note, then the standard trick
 is to put the grace notes before a phantom ``space note'', e.g.
 @lilypond[fragment,verbatim, relative=2]
@@ -2004,6 +2010,9 @@ expressions.  Nesting, juxtaposing, or ending sequential music with a
 grace section is not supported, and might produce crashes or other
 errors.
 
+Overriding settings for grace music using @code{add-to-grace-init}
+cannot be done in a modular way.
+
 
 @node Glissando 
 @subsection Glissando
@@ -2085,14 +2094,15 @@ A crescendo mark is started with @code{\cr} and terminated with
 crescendo can be started with @code{\<} and a decrescendo can be
 started with @code{\>}.  Either one can be terminated with @code{\!}.
 Because these marks are bound to notes, if you must use spacer notes
-if marks during one note are needed.
+if multiple marks during one note are needed.
 
 @lilypond[fragment,verbatim,center,quote]
   c''-\< c''-\!   d''-\decr e''-\rced 
   < f''1 { s4 s4-\< s4-\! \>  s4-\! } >
 @end lilypond
 This may give rise to very short hairpins. Use @code{minimum-length}
-in @internalsref{Voice}.@internalsref{HairPin} to lengthen these, e.g.
+in @internalsref{Voice}.@internalsref{HairPin} to lengthen them, for
+example:
 
 @example
  \property Staff.Hairpin \override #'minimum-length = #5
@@ -2146,9 +2156,13 @@ object. Predefined variables to set the vertical direction are
 @cindex repeats
 @cindex @code{\repeat}
 
-To specify repeats, use the @code{\repeat} keyword.  Since repeats
-should work differently when played or printed, there are a few
-different variants of repeats.
+
+Repetition is a central concept in music, and multiple notations exist
+for repetitions. In LilyPond, most of these notations can be captured
+in a uniform syntax. One of the advantages is, all these repetitions
+can be rendered in MIDI accurately.
+
+The following types of repetition are supported:
 
 @table @code
 @item unfold
@@ -2186,10 +2200,6 @@ Make beat or measure repeats. These look like percent signs.
 @node Repeat syntax
 @subsection Repeat syntax
 
-
-Repetition is a central concept in music, and multiple notations exist
-for repetitions.
-
 @syntax
 
 LilyPond has one syntactic construct for specifying different types of
@@ -2248,8 +2258,8 @@ With alternative endings:
 @noindent
 then it is ambiguous to which @code{\repeat} the @code{\alternative}
 belongs. This ambiguity is resolved by always having the
-@code{\alternative} belong to the inner @code{\repeat}.  This
-ambiguity may also be resolved by using braces.
+@code{\alternative} belong to the inner @code{\repeat}.  For clarity,
+it is advisable to use braces in such situations.
 @cindex ambiguity
 
 @node Repeats and MIDI

diff --git a/lily/dynamic-engraver.cc b/lily/dynamic-engraver.cc
index 0d7ffd1da99d8ca0d3a1d8e01ad5aa43175d0d8f..3a836cee47ee2d7d10fa1534945fe3713c26e109 100644 (file)
--- a/lily/dynamic-engraver.cc
+++ b/lily/dynamic-engraver.cc
@@ -270,7 +270,7 @@ Dynamic_engraver::process_music ()
              if (gh_string_p (s) || gh_pair_p (s))
                {
                  cresc_->set_grob_property ("edge-text",
-                                              gh_cons (s, scm_makfrom0str ("")));
+                                            gh_cons (s, scm_makfrom0str ("")));
                  daddy_trans_->set_property ((start_type + "Text").to_str0 (),
                                                SCM_EOL);
                }

diff --git a/lily/include/simple-spacer.hh b/lily/include/simple-spacer.hh
index 2cb444deafd4ff657baa684e5741fcfe1bc0d4ae..c050f2f8ff64f12b36f0629a109c092c7d14af88 100644 (file)
--- a/lily/include/simple-spacer.hh
+++ b/lily/include/simple-spacer.hh
@@ -42,7 +42,7 @@ struct Simple_spacer
   
   Simple_spacer ();
   
-  void solve (Column_x_positions *, bool) const;
+  void solve (Column_x_positions *, bool);
   void add_columns (Link_array<Grob>const &);
   void my_solve_linelen ();
   void my_solve_natural_len ();

diff --git a/lily/simple-spacer.cc b/lily/simple-spacer.cc
index 83f944ec6714e63cc833c9c5d1b1e16e3e4261f4..5a658657d668b3db107232207f773791b7023bfa 100644 (file)
--- a/lily/simple-spacer.cc
+++ b/lily/simple-spacer.cc
@@ -302,13 +302,7 @@ Simple_spacer::add_columns (Link_array<Grob> const &icols)
        }
     }
 
-  /*
-    TODO: should support natural length on only the last line.
-   */
-  if (line_len_ < 0)
-    my_solve_natural_len ();
-  else
-    my_solve_linelen ();
+
 }
 
 /*
@@ -327,8 +321,18 @@ Simple_spacer::add_columns (Link_array<Grob> const &icols)
   
  */
 void
-Simple_spacer::solve (Column_x_positions *positions, bool ragged) const
+Simple_spacer::solve (Column_x_positions *positions, bool ragged) 
 {
+  /*
+    TODO: should support natural length on only the last line.
+   */
+  ragged = ragged || (line_len_ < 0) ;
+  if (ragged)
+    my_solve_natural_len ();
+  else
+    my_solve_linelen ();
+
+  
   positions->force_ = force_;
   if ((force_ < 0))
     {

diff --git a/ly/grace-init.ly b/ly/grace-init.ly
index c3bf59ce95f53cfdc92edc2510552cc8b8e5b1db..2e70c5ad8a2497c6eda9eee0c0f50bf92c173723 100644 (file)
--- a/ly/grace-init.ly
+++ b/ly/grace-init.ly
@@ -1,5 +1,10 @@
 \version "1.7.18"
 
+%%
+%% TODO: these definitions should be read and executed out dynamically
+%%  using an applycontext.
+%%
+
 startGraceMusic = {
     \property Voice.Stem \override  #'direction = #1
     \property Voice.Stem \override #'lengths = 

diff --git a/ly/spanners-init.ly b/ly/spanners-init.ly
index 074366c64c697b2a8fe762bf42404c4f7a750390..08fe9534a7198b78ad660346063811b4b8c44b9c 100644 (file)
--- a/ly/spanners-init.ly
+++ b/ly/spanners-init.ly
@@ -3,7 +3,6 @@
 startCluster = #(make-span-event 'ClusterEvent START)
 stopCluster = #(make-span-event 'ClusterEvent STOP)
 
-
 startGroup = #(make-span-event 'NoteGroupingEvent START)
 stopGroup = #(make-span-event 'NoteGroupingEvent STOP)
 

diff --git a/scm/grob-property-description.scm b/scm/grob-property-description.scm
deleted file mode 100644 (file)
index ada78a1..0000000
--- a/scm/grob-property-description.scm
+++ /dev/null
@@ -1,554 +0,0 @@
-;;;; grob-property-description.scm -- part of generated backend documentation
-;;;;
-;;;;  source file of the GNU LilyPond music typesetter
-;;;; 
-;;;; (c)  1998--2003  Han-Wen Nienhuys <hanwen@cs.uu.nl>
-;;;;                 Jan Nieuwenhuizen <janneke@gnu.org>
-
-
-
-(define-public all-backend-properties '())
-
-(define (grob-property-description symbol type? description)
-  (if (not (equal? (object-property symbol 'backend-doc) #f))
-      (begin
-       (ly:warn (string-append "Redefining " (symbol->string symbol) "\n"))
-       (exit 2)
-      ))
-  
-  (set-object-property! symbol 'backend-type? type?)
-  (set-object-property! symbol 'backend-doc description)
-  (set! all-backend-properties (cons symbol all-backend-properties))
-  )
-
-;; put this in an alist?
-
-(grob-property-description 'X-extent-callback procedure? "procedure taking an grob and axis argument, returning a number-pair. The return value is the extent of the grob.
-
-The size of a grob are determined through callbacks, settable with
-grob properties @code{X-extent-callback} and @code{Y-extent-callback}.
-There can be only one extent-callback for each axis. No callback
-(Scheme value @code{#f}) means: `empty in this direction'. If you fill
-in a pair of numbers, that pair hard-codes the extent in that
-coordinate.
-")
-(grob-property-description 'X-offset-callbacks list? "list of functions, each taking an grob and axis argument. The function determine the position relative to this grob's parent. The last one in the list is called first.
-
-Offsets of grobs are relative to a parent reference point. Most
-positions are not known when an object is created, so these are
-calculated as needed. This is done by adding a callback for a specific
-direction.
-
-Offset callbacks can be stacked, i.e.
-
-@example
-        \property .... \override #'Y-offset-callbacks = #(list
-                callback1 callback2 callback3)
-
-@end example
-
-The callbacks will be executed in the order @code{callback3 callback2
-callback1}. This is used for quantized positioning: the staccato dot is
-above or below a note head, and it must not be on a staff-line.  To
-achieve this, the staccato dot has two callbacks: one that positions the
-grob above or below the note head, and one that rounds the Y-position of
-the grob to the nearest open space.
-
-
-")
-(grob-property-description 'Y-extent-callback procedure? "see @code{X-extent-callback}.")
-(grob-property-description 'Y-offset-callbacks list? "see @code{X-offset-callbacks}.")
-
-(grob-property-description 'accidental-grobs list? "Alis with (NOTENAME . GROBLIST) entries")
-(grob-property-description 'accidentals list? "List of alteration numbers.")
-(grob-property-description 'add-stem boolean? "does this flexa shape require an additional stem on the left side?.")
-(grob-property-description 'adjust-if-on-staffline boolean? "If this grob is on a staff line, adjust its appearance, so that it better fits into the staff.  E.g., if set true on stem grobs, flares of mensural flags will always be aligned with the staff lines, regardless if the associated note head is printed on a staff line or inbetween.")
-(grob-property-description 'after-line-breaking-callback procedure? "Procedure taking a grob as argument.
-This procedure is called (using dependency resolution) after line breaking. Return value is ignored.")
-(grob-property-description 'align-dir ly:dir? "Which side to align? -1: left side, 0: around center of width, 1: right side.")
-(grob-property-description 'alignment-done boolean? "boolean to administrate whether we've done the alignment already (to ensure that the process is done only once).")
-(grob-property-description 'all-elements grob-list? "list of all grobs in this line. Needed for protecting grobs from GC.")
-(grob-property-description 'arch-angle number? "turning angle of the hook of a system brace" )
-(grob-property-description 'arch-height ly:dimension? "height of the hook of a system brace.")
-(grob-property-description 'arch-thick number? "thickness of the hook of system brace.")
-(grob-property-description 'arch-width ly:dimension? "width of the hook of a system brace.")
-(grob-property-description 'arpeggio ly:grob? "pointer to arpeggio object.") 
-(grob-property-description 'arpeggio-direction ly:dir? "If set, put an
-arrow on the arpeggio squiggly line.")
-(grob-property-description 'ascendens boolean? "is this neume of an ascending?.")
-(grob-property-description 'attachment pair? "cons of symbols
-indicating how a slur should be attached at the ends. The format is
-'(LEFT-TYPE . RIGHT-TYPE), where both TYPEs are symbols. The values of
-these symbols may be alongside-stem, stem, head or loose-end.")
-(grob-property-description 'attachment-offset pair? "cons of offsets,
-'(LEFT-offset . RIGHT-offset).  This offset is added to the
-attachments to prevent ugly slurs.  [fixme: we need more documentation here].
-.")
-(grob-property-description 'auctum boolean? "is this neume augmented?.")
-(grob-property-description 'auto-knee-gap ly:dimension? "If a gap is found between noteheads
-where a  horizontal beam fits that is larger than this number,  make a kneed beam.")
-(grob-property-description 'axes list? "list of axis numbers.
-In the case of alignment grobs, this should contain only one number.")
-(grob-property-description 'bar-size ly:dimension? "size of a bar line.")
-(grob-property-description 'bars grob-list? "list of barline pointers.")
-(grob-property-description 'bar-size-procedure procedure? "Procedure that computes the size of a bar line.")
-(grob-property-description 'base-shortest-duration ly:moment?
-                          "Spacing is based on the shortest notes in a piece. Normally, pieces are spaced as if notes at least as short as this are present.")
-(grob-property-description 'baseline-skip ly:dimension? "Baseline skip to use for multiple lines of text.")
-(grob-property-description 'bass list? " musical-pitch, optional.")
-(grob-property-description 'beam ly:grob? "pointer to the beam, if applicable.")
-(grob-property-description 'beam-thickness ly:dimension? "thickness, measured in staffspace.")
-(grob-property-description 'beam-width ly:dimension? "width of the tremolo sign.")
-(grob-property-description 'beamed-lengths list? "list of stem lengths given beam multiplicity .")
-(grob-property-description 'beamed-minimum-free-lengths list? "list of normal minimum free stem lengths (chord to beams) given beam multiplicity.")
-(grob-property-description 'beamed-extreme-minimum-free-lengths list? "list of extreme minimum free stem lengths (chord to beams) given beam multiplicity.")
-(grob-property-description 'beamed-stem-shorten list? "shorten beamed stems in forced direction.")
-(grob-property-description 'beaming pair?
-                          "Pair of number lists. Each number list
-specifies which beams to make. 0 is the central beam, 1 is the next
-beam toward the note etc. This information is used to determine how to
-connect the beaming patterns from stem to stem inside a beam.")
-
-
-(grob-property-description 'beautiful number? "number that dictates when a slur should be de-uglyfied.  It correlates with the enclosed area between noteheads and slurs.  A value of 0.1 yields only undisturbed slurs, a value of 5 will tolerate quite high blown slurs.")
-(grob-property-description 'before-line-breaking-callback procedure? "Procedure taking grob as argument.
-This procedure is called (using dependency resolution) before line breaking, but after generating discretionary items. Return value is ignored.")
-(grob-property-description 'between-cols pair? "Where to attach a loose column to")
-(grob-property-description 'between-system-string string? "string
- to dump between two systems. Useful for forcing pagebreaks.")
-(grob-property-description 'bounded-by-me grob-list? "list of spanners that have this
-column as start/begin point. Only columns that have grobs or act as bounds are spaced.")
-(grob-property-description 'bracket-thick number? "width of a system start bracket. .")
-(grob-property-description 'break-align-symbol symbol? "the index in the spacing table (symbol) of the to be aligned item.")
-(grob-property-description 'break-glyph-function procedure? "function taking glyph and break-direction, returning the glyph at a line break.")
-(grob-property-description 'breakable boolean? "boolean indicating if this is a breakable item (clef, barline, key sig, etc.).")
-(grob-property-description 'c0-position integer? "integer indicating the position of central C.")
-(grob-property-description 'cautionary-style symbol? "style  of cautionary accidentals. Choices are 'smaller (one size smaller) or 'parentheses.")
-(grob-property-description 'cautionary boolean? "is this a cautionary accidentals.?")
-
-(grob-property-description 'center-element ly:grob? "grob which will
-be at the center of the group after aligning (when using
-Align_interface::center_on_element). .")
-(grob-property-description 'concaveness-gap ly:dimension? "A beam is
-considered to be concave if the distance of an inner notehead to the
-line between two outer noteheads is bigger than this gap.")
-(grob-property-description 'concaveness-threshold number? "A beam is
-considered to be concave is concaveness is bigger than this threshold.
-Concaveness is calculated as the sum of the vertical distances of
-inner noteheads that fall outside the interval of the two outer
-noteheads, to the vertically nearest outer notehead, divided by the
-square of the inner notes involved.")
-(grob-property-description 'collapse-height ly:dimension? "Minimum height of system start delimiter.  If equal or smaller, the bracket is removed.")
-
-(grob-property-description 'columns grob-list? "list of grobs, typically containing paper-columns.")
-(grob-property-description 'conditional-elements grob-list? "Internal use only")
-(grob-property-description 'context-info integer? "DOCME")
-
-(grob-property-description 'control-points list? "List of 4 offsets (number-pairs) that form control points for the  tie/slur shape.")
-(grob-property-description 'damping integer? "amount of beam slope damping should beam slope be damped? 0: no, 1: yes, 100000: horizontal beams .")
-(grob-property-description 'dash-length number? "the length of a dash.")
-(grob-property-description 'dash-period number? "the length of one dash + white space.")
-(grob-property-description 'dashed number? "[FIXME: use dash-period/dash length; see text-spanner] number representing the length of the dashes.")
-(grob-property-description 'descendens boolean? "is this neume of a descendent type?.")
-(grob-property-description 'de-uglify-parameters list? "list of 3 real constants. They define the valid areas for the middle control points. Used in de_uglyfy. They are a bit empirical.")
-
-(grob-property-description 'neutral-direction ly:dir? "Where to go if we're on the neutral position of the staff (by default, the middle of the staff; see also grob-property neutral-position).  [Ross] has the following to say about this: Some engravers consider the middle line neutral, and take the option of using either up- or down-stems for notes that fall on it. However, more up-to-date engraving no longer permits an option; now a down-stem is always appropriate.")
-(grob-property-description 'neutral-position number? "Position (in half staff spaces) where to flip the direction of stems: by default, custodes above this position get their stems downwards; custodes below this position get their stems upwards.  A value of 0 designates the center of the staff.  Use property neutral-direction to control the behaviour of stems on the neutral position itself.  (Note: currently, neutral-position is supported only for custodes; for stems of note heads, neutral-position is currently fixed to 0, i.e. the middle of the staff.)")
-(grob-property-description 'deminutum boolean? "is this neume deminished?.")
-(grob-property-description 'dependencies grob-list? "list of score-grob pointers that indicate who to compute first for certain global passes.")
-(grob-property-description 'details list? "alist of parameters for detailed grob behavior.")
-(grob-property-description 'dir-function procedure? "function of type (count total)->direction.  Default value: beam-dir-majority, also available: beam-dir-mean, beam-dir-median.
-
-The ways to calculate the direction of a beam work as follows:
-@table @code
-@item majority
-number count of up or down notes
-@item mean
-mean center distance of all notes
-@item median
-mean centre distance weighted per note
-@end table
-
-")
-(grob-property-description 'direction ly:dir? "up or down, left or right?.")
-(grob-property-description 'direction-source ly:grob? "in case side-relative-direction is set, which grob  to get the direction from .")
-(grob-property-description 'dot ly:grob? "reference to Dots object.")
-(grob-property-description 'dot-count integer? "number of dots.")
-(grob-property-description 'duration-log integer? "2-log of the notehead duration, i.e. 0=whole note, 1 = half note, etc.")
-(grob-property-description 'edge-height pair? "a cons that specifies the heights of the vertical edges '(LEFT-height . RIGHT-height).")
-(grob-property-description 'edge-widen pair? "a cons that specifies the widths of the slanted edges '(LEFT-width . RIGHT-width).")
-(grob-property-description 'edge-text pair? "a cons that specifies the texts to be set at the edges '(LEFT-text . RIGHT-text).")
-(grob-property-description 'elements grob-list? "list of grobs, type depending on the Grob where this is set in.")
-(grob-property-description 'expand-limit integer? "maximum number of measures expanded in church rests.")
-(grob-property-description 'extra-X-extent number-pair? "enlarge in X dimension by this much, measured in staff space.")
-(grob-property-description 'extra-Y-extent number-pair? "see @code{extra-Y-extent}.")
-(grob-property-description 'X-extent number-pair? "Store extent. internal use only. ")
-(grob-property-description 'Y-extent number-pair? "Store extent. internal use only. ")
-(grob-property-description 'extra-offset number-pair? "pair of reals
-(a cons) forcing an extra offset before outputting.
-@code{extra-offset} is added just before `printing' the grob, so the
-typesetting engine is completely oblivious to it.
-")
-(grob-property-description 'extremity-offset-alist list? "an alist (attachment stem-dir*dir slur-dir*dir) -> offset.  The offset adds to the centre of the notehead, or stem.")
-
-(grob-property-description 'extremity-rules list? "an alist (procedure
-slur dir) -> attachment to determine the attachment (see above).  If
-procedure returns #t, attachment is used.  Otherwise, the next
-procedure is tried.")
-(grob-property-description
- 'flag-style symbol?
- "a string determining what style of glyph is typeset on a Stem. Valid
-options include undefined and mensural.
-  Additionally, @code{no-flag} switches off the flag.")
-(grob-property-description 'stroke-style string? "set to \"grace\" to turn stroke through flag on.")
-(grob-property-description 'flag-width-function procedure? "Procedure that computes the width of a half-beam (a non-connecting beam.).")
-(grob-property-description 'flexa-height ly:dimension? "height of a flexa shape in a ligature grob in staff_space.")
-(grob-property-description 'flexa-width ly:dimension? "width of a flexa shape in a ligature grob in staff_space.")
-(grob-property-description 'font-family symbol? "partial font
-definition: music roman braces dynamic math ...")
-(grob-property-description 'font-name string? "file name for the font to load.
-Overrides all other font-X qualifiers.")
-(grob-property-description 'font-design-size number? "partial font definition: exact font size in points FIXME: should override font-relative-size.")
-(grob-property-description 'font-magnification number? "Magnification
-  of the font. If undefined, the default is @code{1.0}.")
-
-(grob-property-description 'font-relative-size number? "partial font
-definition: the relative size compared the `normal' size.  0 is
-style-sheet's normal size, -1 is smaller, +1 is bigger.")
-
-(grob-property-description 'font-series symbol? "partial font definition: medium, bold.")
-(grob-property-description 'font-shape symbol? "partial font definition: upright or italic.")
-
-(grob-property-description 'font-style symbol? "a precooked set of font
-definitions, eg. finger volta timesig mark script large Large
-dynamic.")
-
-(grob-property-description 'force-hshift number? "amount of
-collision_note_width that overides automatic collision settings. This
-is used by @ref{note-collision-interface}.")
-
-(grob-property-description 'fraction number-pair? "fraction of a time signature.")
-(grob-property-description 'french-beaming boolean? "Use French
-beaming style: stems stop at innermost beams.")
-(grob-property-description 'full-size-change boolean? "if set, don't make a change clef smaller.")
-
-(grob-property-description 'glyph string? "a string determining what (style) of  glyph is typeset. Valid choices depend on the function that is reading this property. .")
-(grob-property-description 'glyph-name string? "a name of character within font.")
-(grob-property-description 'glyph-name-procedure procedure? "Return
-name of character within font.")
-
-(grob-property-description 'gap ly:dimension? "Size of a gap in a variable symbol.")
-
-(grob-property-description 'grow-direction ly:dir? "crescendo or decrescendo?.")
-(grob-property-description 'hair-thickness number? "thickness, measured in stafflinethickness.")
-(grob-property-description 'heads pair? "Pair of grob pointers, pointing to the two heads of the  tie.")
-(grob-property-description 'height ly:dimension? "in staffspace.")
-(grob-property-description 'height-limit ly:dimension? "Maximum slur height,
-  long slurs approach this height.
-
-  For small width w, the height should be proportional to w, for w ->
-  infinity, the height should rise to limit h_infinity asymptotically.
-
-  Hence we take F (x) such that
-@quotation
-@example  
-  F (0) = 0 , F' (0) = 1, and F (infinity) = 1
-@end example
-@end quotation
-  where
-@quotation
-@example  
-  h = height-limit * F (x * ratio / height-limit)
-@end example
-@end quotation
-  Currently, for F we use
-@quotation
-@example  
-  F (x) = 2/pi * atan (pi * x/2)
-@end example
-@end quotation
-")
-(grob-property-description 'horizontal-shift integer? "integer that identifies ranking of note-column for horizontal shifting. This is used by @ref{note-collision-interface}.")
-(grob-property-description 'ideal-distances list? "(OBJ . (DIST . STRENGTH)) pairs.")
-(grob-property-description 'inclinatum boolean? "is this neume an inclinatum?.")
-(grob-property-description 'interfaces list? "list of symbols indicating the interfaces supported by this object. Is initialized from the @code{meta} field.")
-(grob-property-description 'inversion list? " musical-pitch, optional.")
-(grob-property-description 'items-worth-living grob-list? "list of interesting items. If empty in a particular system, clear that system.")
-(grob-property-description 'join-heads boolean? "Whether to join the noteheads of an ambitus grob with a vertical line.")
-(grob-property-description 'kern ly:dimension? "amount of extra white
-space to add. For barline, space after a thick line.")
-(grob-property-description 'knee boolean? "Is this beam a knee?")
-(grob-property-description 'knee-spacing-correction number? "optical correction amount for knees. 0: no correction; 1: full correction.")
-(grob-property-description 'layer number? "The output layer [0..2].  The default is 1.")
-
-(grob-property-description 'left-position number? "position of left part of spanner.")
-(grob-property-description 'right-position number? "position of right part of spanner.")
-(grob-property-description 'left-padding ly:dimension? "space left of accs.")
-
-(grob-property-description 'left-widen boolean? "Whether the left edge of a piano pedal bracket should be widened by the first element of edge-widen.")
-
-(grob-property-description 'length ly:dimension? "Stem length for unbeamed stems, only for user override.")
-(grob-property-description 'lengths list? "Stem length given
-multiplicity of flag.  The Nth element of the list gives the stem
-length of a note with N flags.
-")
-(grob-property-description 'line-count integer? "Number of staff
-lines.  If you want to override this for staffs individually, you must
-use @code{\outputproperty}. @code{\property .. \override} will not
-work: @code{\override} is processed after the StaffSymbol is created,
-and will have no effect.
-")
-(grob-property-description 'maximum-length ly:dimension? "don't make Grob longer than this")
-(grob-property-description 'maximum-rest-count integer? "kill off rests so we don't more than this number left.")
-(grob-property-description 'measure-length ly:moment? "Length of a
-measure. Used in some spacing situations.")
-(grob-property-description 'measure-count integer? "number of measures for a multimeasure rest.")
-
-(grob-property-description 'merge-differently-headed boolean? "Merge
-noteheads in collisions, even if they have different note heads. The
-smaller of the two heads will be rendered invisible. This used
-polyphonic guitar notation. The value of this setting is used by
-@ref{note-collision-interface} .")
-
-(grob-property-description 'merge-differently-dotted boolean? " Merge
-noteheads in collisions, even if they have a different number of
-dots. This normal notation for some types of polyphonic music. The
-value of this setting is used by @ref{note-collision-interface} .")
-
-(grob-property-description 'meta list? "Alist of meta information of this grob.
-
-The alist contains the following entries: name, interfaces.
-
-
-
-")
-(grob-property-description 'minimum-distance ly:dimension? "minimum distance between notes and rests.")
-(grob-property-description 'minimum-distances list? "list of rods (ie. (OBJ . DIST) pairs).")
-
-(grob-property-description 'minimum-X-extent number-pair? "minimum size in X dimension, measured in staff space.")
-(grob-property-description 'minimum-Y-extent number-pair? "see @code{minimum-Y-extent}.")
-(grob-property-description 'minimum-length ly:dimension? "try to make the
-Grob at least this long.
-
-Also works as a scaling parameter for the length of hyphen. .")
-
-(grob-property-description 'minimum-space ly:dimension? "minimum distance that the victim should move (after padding).")
-
-(grob-property-description 'molecule-callback procedure? "Function
-taking grob as argument, returning a smobbed Molecule.
-
-All visible, i.e. non-transparent, grobs have a callback to create a
-Molecule. The callback should be a Scheme function taking one argument
-(the grob) and returning a Molecule.  Most molecule callbacks are
-written in C++, but you can also write them in Scheme. An example is
-provided in @code{input/regression/molecule-hacking.ly}.
-")
-
-(grob-property-description 'molecule ly:molecule? "Cached output of the molecule-callback.")
-
-(grob-property-description 'new-accidentals list? "list of (pitch, accidental) pairs.")
-(grob-property-description 'no-spacing-rods boolean? "read from grobs: boolean that makes Separation_item ignore this item (MOVE ME TO ITEM).")
-(grob-property-description 'no-stem-extend boolean? "should stem not be extended to middle staff line?.")
-(grob-property-description 'non-default boolean? "not set because of existence of a bar?.")
-(grob-property-description 'note-head-style string? "name of the font character to be used as note heads in the ambitus grob.")
-(grob-property-description 'note-heads grob-list? "List of note head grobs")
-(grob-property-description 'old-accidentals list? "list of (pitch, accidental) pairs.")
-(grob-property-description 'oriscus boolean? "is this neume an oriscus?.")
-(grob-property-description 'outer boolean? "whether a text spanner should extend to the outer edge of the spanned notes")
-(grob-property-description 'padding ly:dimension? "add this much extra space between objects that are next to each other.")
-(grob-property-description 'pedal-type symbol? "Style of piano pedal: text, bracket or mixed.")
-(grob-property-description 'pedal-text ly:grob? "Pointer to the text of a mixed-style piano pedal.")
-(grob-property-description 'penalty number? "Penalty for breaking at
-this column. 10000 or more means forbid linebreak, -10000 or less
-means force linebreak.  Other values influence linebreaking decisions
-as a real penalty.")
-
-(grob-property-description 'pes-or-flexa boolean? "shall this neume be joined with the previous head?.")
-(grob-property-description 'pitch-max ly:pitch? "FIXME, JUNKME")
-(grob-property-description 'pitch-min ly:pitch? "FIXME, JUNKME")
-
-
-(grob-property-description 'pitches list? "list of musical-pitch.")
-(grob-property-description 'quilisma boolean? "is this neume a quilisma?.")
-(grob-property-description 'positions pair? "cons of staff positions (LEFT . RIGHT")
-(grob-property-description 'prefix-set number? "DOCME")
-(grob-property-description 'ratio number? "Slur parameter.  See height-limit.")
-(grob-property-description 'right-padding ly:dimension? "space right of accs.")
-(grob-property-description 'right-trim-amount ly:dimension? "shortening of the lyric extender on the right.")
-(grob-property-description 'right-widen boolean? "Whether the right edge of a piano pedal bracket should be widened by the second element of edge-widen")
-(grob-property-description 'script-priority number? "A sorting key that determines in what order a script is within a stack of scripts.")
-(grob-property-description 'self-alignment-X number-or-grob? "real number: -1 =
-left aligned, 0 = center, 1 right-aligned in X direction.
-
- Set to an grob pointer, if you want that grob to be the center.
-In this case, the center grob should have this object as a
-reference point.
-
-TODO: revise typing.")
-(grob-property-description 'self-alignment-Y number? "like self-alignment-X but for Y axis.")
-(grob-property-description 'semivocalis boolean? "is this neume a lisquescending one?.")
-(grob-property-description 'shorten ly:dimension? "the amount of space that a stem should be shortened (DOCME!)")
-(grob-property-description 'shorten-pair number-pair? "the length on each side to shorten a text-spanner, for example a pedal bracket")
-(grob-property-description 'common-shortest-duration ly:moment?
-                          "The most common shortest note length.
-This is used in spacing. Making this larger will make the score tighter.")
-(grob-property-description 'shortest-duration-space ly:dimension? "Start
-with this much space for the shortest duration. This is explessed in @code{spacing-increment} as unit. See also
-@ref{spacing-spanner-interface}.")
-(grob-property-description 'shortest-playing-duration ly:moment? "duration of the shortest playing in that column.")
-(grob-property-description 'shortest-starter-duration ly:moment? "duration of the shortest notes that starts exactly in this column.")
-(grob-property-description 'side-relative-direction ly:dir? "if set: get the direction from a different object, and multiply by this.")
-(grob-property-description 'side-support-elements grob-list? "the support, a list of grobs.")
-(grob-property-description 'slope number? "some kind of slope")
-(grob-property-description 'slope-limit number? "set slope to zero if slope is running away steeper than this.")
-
-(grob-property-description 'space-alist list? "Alist of break align
-spacing tuples: format = (SYMBOL . (TYPE . DISTANCE)), where TYPE can be
-minimum-space or extra-space.")
-(grob-property-description 'space-function procedure? "return interbeam space given Beam grob and multiplicity.")
-(grob-property-description 'spacing-increment number? "Add this much space for a doubled duration. Typically, the width of a note head. See also @ref{spacing-spanner-interface}.")
-
-(grob-property-description 'spacing-wishes grob-list? "List of note spacing or staff spacing objects.")
-(grob-property-description 'spacing-procedure procedure? "procedure
-taking grob as argument. This is called after
-before-line-breaking-callback, but before the actual line breaking
-itself.  Return value is ignored.")
-(grob-property-description 'stacking-dir ly:dir? "stack contents of grobs in which direction ?.")
-(grob-property-description 'staff-space ly:dimension? "Amount of line leading relative to global staffspace.")
-(grob-property-description 'staff-position number? "vertical position in staff spaces, counted from the middle line.")
-
-(grob-property-description 'staffline-clearance ly:dimension? "don't get closer than this to stafflines.")
-(grob-property-description 'stem ly:grob? "pointer to Stem object.")
-(grob-property-description 'stem-attachment-function procedure? "Where
-does the stem attach to the notehead? Function takes a symbol argument
-being the style. It returns a (X . Y) pair, specifying location in
-terms of note head bounding box.")
-(grob-property-description 'stem-end-position number? "Where does the stem end (the end is opposite to the support-head.")
-
-(grob-property-description 'stem-shorten list? "shorten stems in forced directions given flag multiplicity:
-the Nth element of the list gives the amount stem shortening of a note with N flags.
-")
-(grob-property-description 'stem-spacing-correction number? "optical correction amount.  [TODO: doco] ")
-(grob-property-description 'stems grob-list? "list of stem objects, corresponding to the notes that the arpeggio has to be before.")
-(grob-property-description 'stropha boolean? "is this neume a stropha?.")
-(grob-property-description 'style symbol? "a string determining what style of  glyph is typeset. Valid choices depend on the function that is reading this property. .")
-(grob-property-description 'support-head ly:grob? "the note head at
-one end of the stem.")
-(grob-property-description 'text markup? "Text markup.  See reference manual for more information.")
-(grob-property-description 'text-start boolean? "Indicator for whether a piano pedal bracket has leading text, such as Ped.")
-(grob-property-description 'thick-thickness number? "thickness, measured in stafflinethickness.")
-(grob-property-description 'thickness number? "thickness, measured in stafflinethickness.")
-(grob-property-description 'thin-kern number? "space after a hair-line.")
-(grob-property-description 'forced-distance ly:dimension? "forced distance for an alignment.")
-
-(grob-property-description 'threshold number-pair? "(cons MIN MAX), where MIN and MAX are dimensions in staffspace.")
-(grob-property-description 'transparent boolean? "This is almost the
-same as setting molecule-callback to #f, but this retains the
-dimensions of this grob, which means that you can erase grobs
-individually. .")
-(grob-property-description 'bracket-visibility boolean-or-symbol? "
-This controls the visibility of the tuplet bracket.
-Setting it to false will prevent printing of the
-bracket. Setting the property to #'if-no-beam will make it
-print only if there is no beam associated with this tuplet bracket.")
-(grob-property-description 'number-visibility boolean-or-symbol? "
-Like @code{bracket-visibility}, but for the number.")
-(grob-property-description 'tie ly:grob? "") 
-(grob-property-description 'type symbol? " 
-
-")
-
-(grob-property-description 'break-visibility procedure? "a function
-that takes the break direction and returns a cons of booleans
-containing (TRANSPARENT . EMPTY).
-")
-
-(grob-property-description 'virga boolean? "is this neume a virga?.")
-(grob-property-description 'when ly:moment? "when does this column happen?.")
-(grob-property-description 'word-space ly:dimension? "elongate left (?) by this much (FIXME: cumbersome semantics).")
-
-(grob-property-description 'alignment number? "alignment of lyrics on notehead, -1 is LEFT, 0 is CENTRE, 1 is RIGHT .")
-(grob-property-description 'ignore-length-mismatch boolean? "if #t, stanzas with shorter lyrics can be moved away from their respective note-head by the lyric alignment code.")
-(grob-property-description 'begin-alignment number? "proportion of lyric length from beginning to align with note-head for left-aligned lyrics.")
-(grob-property-description 'end-alignment number? "proportion of lyric length from end to align with note-head for right-aligned lyrics.")
-(grob-property-description 'width ly:dimension? "width of a grob measured in staff space.")
-(grob-property-description 'width-correct ly:dimension? "width correction for (de)cresc. text spanners.")
-(grob-property-description 'x-gap ly:dimension? "horizontal gap between notehead and tie.")
-(grob-property-description 'x-offset ly:dimension? "extra horizontal offset for ligature heads.")
-(grob-property-description 'y-free ly:dimension? "minimal vertical gap between slur and noteheads or stems.")
-(grob-property-description 'y-offset ly:dimension? "extra vertical offset
-for ties away from the center line.")
-(grob-property-description 'zigzag-length ly:dimension? "The length of the
-lines of a zigzag - relative to zigzag-width. a value of 1
-gives 60-degree zigzags.")
-(grob-property-description 'zigzag-width ly:dimension? "the width of one
-zigzag-squiggle, measured in staff space. The width will be adjusted
-so that the line can be constructed from a whole number of squiggles.")
-
-
-;;; INTERNAL
-
-(grob-property-description 'left-neighbors grob-list? " List of
-spacing-wish grobs that are close to the current column.
-
-The closest spacing-wishes determine the actual distances between the
-columns.
-")
-(grob-property-description 'right-neighbors grob-list? "see left-neighbors")
-(grob-property-description 'left-items grob-list? "")
-(grob-property-description 'right-items grob-list? "")
-(grob-property-description 'cause scheme? "Any kind of causation objects (i.e. music, or perhaps translator) that was the cause for this grob.  ")
-(grob-property-description 'font ly:font-metric? "Cached font metric object")
-(grob-property-description 'break-alignment-done boolean? "mark flag to signal we've done alignment already.")
-(grob-property-description
- 'staff-padding ly:dimension?
- "Maintain this much space to the staff.  It's effect is similar to
-the padding mechanism, but this will keep objects above and below the
-staff in a row more often, when the heights of the notes vary.
-")
-
-(grob-property-description 'staff-symbol ly:grob? "the staff symbol grob that we're in.")
-(grob-property-description 'collision-done boolean? "")
-(grob-property-description 'rest ly:grob? "the staff symbol grob that we're in.")
-(grob-property-description 'rest-collision ly:grob? "rest collision that a rest is in.")
-(grob-property-description 'rest-collision-done boolean? "Is this rest collision processed yet?")
-
-(grob-property-description 'script-molecule pair? "Index code for script -- internal, see script.cc.")
-
-(grob-property-description 'accidental-grob ly:grob? "Accidental for this note.")
-
-(grob-property-description 'causes list? "list of cause objects; these can be music objects or grobs.")
-(grob-property-description 'flag-count number? "")
-(grob-property-description 'chord-tremolo boolean? "if set, this beam is a tremolo. TODO: use interface for this!")
-(grob-property-description 'chord pair? "?")
-(grob-property-description 'begin-of-line-visible boolean? "?")
-
-(grob-property-description 'quant-score number? "Beam quanting score
--- can be stored for debugging")
-(grob-property-description 'least-squares-dy number? 
- "ideal beam slope, without damping.")
-(grob-property-description 'ligature-primitive-callback procedure? "callback that brews ligature head.")
-(grob-property-description 'stem-info pair? "caching of stem parameters")
-(grob-property-description 'note-columns pair? "list of NoteColumn grobs.")
-
-(grob-property-description 'if-text-padding number? "padding in case texts are there.")
-(grob-property-description 'grace-space-factor number? "space grace at this fraction of the increment.")
-(grob-property-description 'position-callbacks list? "list of
-functions set spanner positions.")
-(grob-property-description 'join-left number? "in ligature such as pes and flexa, the length of the vertical joining beam attached to the left side of the head")
-(grob-property-description 'delta-pitch number? "DOCME")
-(grob-property-description 'head-width ly:dimension? "width of this ligature head")
-(grob-property-description 'primitive number? "DOCME")
-(grob-property-description 'minimum-beam-collision-distance ly:dimension?
-"Minimum distance to beam for a rest collision.")
-
-(grob-property-description 'avoid-note-head boolean? "if set, the stem of a chord does not pass through all note head, but start at the last note head. Used by tablature.")
-
-(grob-property-description 'up-to-staff boolean? "if set, stems' lengths are set so as stems end out of the staff. Used by tablature.")
-
-(grob-property-description 'use-breve-rest boolean? "boolean that
-tells multi-measure-rest to use a breve rest to represent the duration
-of 1 measure instead of whole rest.  It defaults to false.  It is set
-to true when the duration of a measure is a breve or longer.")
-
-; (display (length all-backend-properties))