Re: converting LilyPond score to XML
That's great!
Can't wait to check this out (currently sitting in front of a deficient
(i.e. non-LilyPond-equipped) computer ;-) )
Best
Urs
Am 04.02.2015 um 23:12 schrieb Wilbert Berendsen:
Friends,
there have been some efforts in the past to convert LilyPond music to
XML. One of the approaches would be to convert the LilyPond music tree
to XML and be able to process it with other tools, which could read the
XML and convert it to MusicXML or other XML music formats.
I have now written a script that can be included in a LilyPond file and
has functions that can map LilyPond score, music and markup objects
etc. to XML, which is written to the current output port (standard
output).
The script is here[1] and there is some documentation included and also
visible here[2].
[1]
https://github.com/wbsoft/python-ly/blob/master/ly/xml/xml-export.ily
[2]
http://python-ly.readthedocs.org/en/latest/ly.xml.html#the-xml-export-ily-file
Usage example:
\include /path/to/xml-export.ily
\displayLilyXML { c d e f }
The XML closely mimics the LilyPond music structure. Markup objects are
also properly converted, as are pitches, durations, moments, stencils,
generic scheme lists, strings, numbers, pairs, symbols etc.
If you are interested in output the LilyPond music structure in XML
format, please test and experiment with this. Note that it is not
MusicXML or another XML format, but just the LilyPond music in XML
notation. This could be further processed or analyzed with other tools.
I am planning to make the XML output as complete and well-structured as
possible. In the documentation I describe how the XML is structured. It
currently supports \score (and all the music and markup, (even scores
inside markup!), but I want to add \book and \bookpart support, and
support for \layout, \paper etc.
(Reason for writing this was that I am trying to design an intermediate
tree-structured storage for parsed LilyPond code in
python-ly/Frescobaldi. I decided to look at how LilyPond itself stores
the music and to possibly mimic that in the python-ly/Frescobaldi
parser.)
best wishes,
Wilbert Berendsen
Frescobaldi and python-ly developer
--
Urs Liska
www.openlilylib.org
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Re: converting LilyPond score to XML
Wilbert Berendsen wbs...@xs4all.nl writes: Friends, there have been some efforts in the past to convert LilyPond music to XML. One of the approaches would be to convert the LilyPond music tree to XML and be able to process it with other tools, which could read the XML and convert it to MusicXML or other XML music formats. I have now written a script that can be included in a LilyPond file and has functions that can map LilyPond score, music and markup objects etc. to XML, which is written to the current output port (standard output). The script is here[1] and there is some documentation included and also visible here[2]. [1] https://github.com/wbsoft/python-ly/blob/master/ly/xml/xml-export.ily [2] http://python-ly.readthedocs.org/en/latest/ly.xml.html#the-xml-export-ily-file Hi Wilbert, taking a look at it, my reinvention of the wheel warning lamp is flickering. Admittedly, in the current state it seems like less work than reusing the existing wheel. Which would be according to the GUILE-2.0 manual: File: guile-2.0.info, Node: SXML, Next: Texinfo Processing, Prev: Statprof, Up: Guile Modules 7.22 SXML = SXML is a native representation of XML in terms of standard Scheme data types: lists, symbols, and strings. For example, the simple XML fragment: parrot type=African GreynameAlfie/name/parrot may be represented with the following SXML: (parrot (@ (type African Grey)) (name Alfie)) SXML is very general, and is capable of representing all of XML. Formally, this means that SXML is a conforming implementation of the http://www.w3.org/TR/xml-infoset/ (XML Information Set) standard. Guile includes several facilities for working with XML and SXML: parsers, serializers, and transformers. * Menu: * SXML Overview:: XML, as it was meant to be * Reading and Writing XML::Convenient XML parsing and serializing * SSAX:: Custom functional-style XML parsers * Transforming SXML:: Munging SXML with ‘pre-post-order’ * SXML Tree Fold:: Fold-based SXML transformations * SXPath:: XPath for SXML * sxml apply-templates:: A more XSLT-like approach to SXML transformations * sxml ssax input-parse:: The SSAX tokenizer, optimized for Guile It turns out that those libraries are also available for GUILE-1.8 (I think you can install them with sudo apt-get install guile-library on Ubuntu). So it definitely makes sense using that kind of representation, and it should provide a good toolbox for eventually converting to MusicXML as well. -- David Kastrup ___ lilypond-devel mailing list lilypond-devel@gnu.org https://lists.gnu.org/mailman/listinfo/lilypond-devel
Re: Allow independent adjustment of minimum length for spanner siblings (issue 201140043 by david.nales...@gmail.com)
Can't review the C++ part. Some nitpicks in the regtest. Will it be possible to tweak the first part of the Tie etc at line-end as well? With a combi of setting 'minimum-length-after-break' and 'minimum-length? If yes, I'd show an example in the regtest. At least it should be explained/demonstrated in the docs. https://codereview.appspot.com/201140043/diff/1/input/regression/minimum-length-after-break.ly File input/regression/minimum-length-after-break.ly (right): https://codereview.appspot.com/201140043/diff/1/input/regression/minimum-length-after-break.ly#newcode15 input/regression/minimum-length-after-break.ly:15: \override Tie.minimum-length-after-break = 20 I'd use \once \override ... Though, that's only me https://codereview.appspot.com/201140043/diff/1/input/regression/minimum-length-after-break.ly#newcode16 input/regression/minimum-length-after-break.ly:16: a1~ I assume it works for chords as well. I'd add at least one example with chords and Tie or Glissando https://codereview.appspot.com/201140043/ ___ lilypond-devel mailing list lilypond-devel@gnu.org https://lists.gnu.org/mailman/listinfo/lilypond-devel
Re: Allow independent adjustment of minimum length for spanner siblings (issue 201140043 by david.nales...@gmail.com)
https://codereview.appspot.com/201140043/diff/1/input/regression/minimum-length-after-break.ly File input/regression/minimum-length-after-break.ly (right): https://codereview.appspot.com/201140043/diff/1/input/regression/minimum-length-after-break.ly#newcode15 input/regression/minimum-length-after-break.ly:15: \override Tie.minimum-length-after-break = 20 On 2015/02/05 22:31:33, thomasmorley651 wrote: I'd use \once \override ... Though, that's only me I'm happy to change that. Would you use \once with the other overrides in the file? https://codereview.appspot.com/201140043/diff/1/input/regression/minimum-length-after-break.ly#newcode16 input/regression/minimum-length-after-break.ly:16: a1~ On 2015/02/05 22:31:34, thomasmorley651 wrote: I assume it works for chords as well. I'd add at least one example with chords and Tie or Glissando Instead of the one regtest, I could have two. The first would show a tied chord, and I would show how you can use 'minimum-length and 'minimum-length-after-break in various combinations. The second would be this regtest, and I could take out the tie example so there's no overlap with the other test. What do you think? https://codereview.appspot.com/201140043/ ___ lilypond-devel mailing list lilypond-devel@gnu.org https://lists.gnu.org/mailman/listinfo/lilypond-devel
Allow independent adjustment of minimum length for spanner siblings (issue 201140043 by david.nales...@gmail.com)
Reviewers: ,
Message:
Please review.
Description:
Allow independent adjustment of minimum length for spanner siblings
The property minimum-length affects both unbroken and broken spanners,
making
independent adjustment impossible. This patch adds a property,
minimum-length-after-break, which, if set, behaves similarly to
minimum-length,
but only affects siblings starting a line. If
minimum-length-after-break is
unset, minimum-length still controls all lengths.
A regtest demonstrates usage of the new property with a number of
spanners.
Please review this at https://codereview.appspot.com/201140043/
Affected files (+56, -1 lines):
A input/regression/minimum-length-after-break.ly
M lily/spanner.cc
M scm/define-grob-properties.scm
Index: input/regression/minimum-length-after-break.ly
diff --git a/input/regression/minimum-length-after-break.ly
b/input/regression/minimum-length-after-break.ly
new file mode 100644
index
..80c3f019afbca5523a5dae2a412b05529c15a69a
--- /dev/null
+++ b/input/regression/minimum-length-after-break.ly
@@ -0,0 +1,45 @@
+\version 2.19.16
+
+\header {
+ texidoc = The property @code{minimum-length-after-break} can be
+used to stretch broken spanners starting after a line break. The
+following example shows usage for a variety of spanners.
+
+}
+
+\layout {
+ ragged-right = ##t
+}
+
+{
+ \override Tie.minimum-length-after-break = 20
+ a1~
+ \break
+ a1
+
+ \override Slur.minimum-length-after-break = 20
+ a1(
+ \break
+ d'1)
+
+ \override TextSpanner.springs-and-rods = #ly:spanner::set-spacing-rods
+ \override TextSpanner.minimum-length-after-break = 20
+ a1\startTextSpan
+ \break
+ a1\stopTextSpan
+
+ \override Hairpin.after-line-breaking = ##t
+ \override Hairpin.to-barline = ##f
+ \override Hairpin.minimum-length-after-break = 20
+ a1\
+ \break
+ a1\!
+
+ \override Glissando.springs-and-rods = #ly:spanner::set-spacing-rods
+ \override Glissando.breakable = ##t
+ \override Glissando.after-line-breaking = ##t
+ \override Glissando.minimum-length-after-break = 20
+ a1\glissando
+ \break
+ d'1
+}
Index: lily/spanner.cc
diff --git a/lily/spanner.cc b/lily/spanner.cc
index
66b35dcd1b8b53df0438bcccddc62b96be71b134..bb0e78b02236c0aee834311eca82f54cd12a4722
100644
--- a/lily/spanner.cc
+++ b/lily/spanner.cc
@@ -366,7 +366,9 @@ Spanner::set_spacing_rods (SCM smob)
{
Grob *me = Grob::unsmob (smob);
SCM num_length = me-get_property (minimum-length);
- if (scm_is_number (num_length))
+ SCM broken_length = me-get_property (minimum-length-after-break);
+ if (scm_is_number (num_length)
+ || scm_is_number (broken_length))
{
Rod r;
Spanner *sp = dynamic_castSpanner * (me);
@@ -389,6 +391,8 @@ Spanner::set_spacing_rods (SCM smob)
r.item_drul_[LEFT] = cols.back ()-find_prebroken_piece (RIGHT);
r.item_drul_[RIGHT] = sp-get_bound (RIGHT);
+ if (scm_is_number (broken_length))
+r.distance_ = robust_scm2double (broken_length, 0);
r.add_to_cols ();
}
@@ -546,6 +550,7 @@ ADD_INTERFACE (Spanner,
/* properties */
normalized-endpoints
minimum-length
+ minimum-length-after-break
spanner-broken
spanner-id
to-barline
Index: scm/define-grob-properties.scm
diff --git a/scm/define-grob-properties.scm b/scm/define-grob-properties.scm
index
0d5eaa124a001d875af1f3f7019e34df1dd8e60d..92742f98d05d51c64ca2469c9b165a66e98d4b9a
100644
--- a/scm/define-grob-properties.scm
+++ b/scm/define-grob-properties.scm
@@ -637,6 +637,11 @@ this long, normally in the horizontal direction. This
requires an
appropriate callback for the @code{springs-and-rods} property. If
added to a @code{Tie}, this sets the minimum distance between
noteheads.)
+ (minimum-length-after-break ,ly:dimension? If set, try to make
+a broken spanner starting a line this long. This requires an
+appropriate callback for the @code{springs-and-rods} property. If
+added to a @code{Tie}, this sets the minimum distance to the
+notehead.)
(minimum-length-fraction ,number? Minimum length of ledger line
as fraction of note head size.)
(minimum-space ,ly:dimension? Minimum distance that the victim
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Re: Allow independent adjustment of minimum length for spanner siblings (issue 201140043 by david.nales...@gmail.com)
https://codereview.appspot.com/201140043/diff/1/input/regression/minimum-length-after-break.ly File input/regression/minimum-length-after-break.ly (right): https://codereview.appspot.com/201140043/diff/1/input/regression/minimum-length-after-break.ly#newcode15 input/regression/minimum-length-after-break.ly:15: \override Tie.minimum-length-after-break = 20 On 2015/02/05 22:51:06, david.nalesnik wrote: On 2015/02/05 22:31:33, thomasmorley651 wrote: I'd use \once \override ... Though, that's only me I'm happy to change that. Would you use \once with the other overrides in the file? I'd always use \once. But again, it's only me, what do others think? https://codereview.appspot.com/201140043/diff/1/input/regression/minimum-length-after-break.ly#newcode16 input/regression/minimum-length-after-break.ly:16: a1~ On 2015/02/05 22:51:06, david.nalesnik wrote: On 2015/02/05 22:31:34, thomasmorley651 wrote: I assume it works for chords as well. I'd add at least one example with chords and Tie or Glissando Instead of the one regtest, I could have two. The first would show a tied chord, and I would show how you can use 'minimum-length and 'minimum-length-after-break in various combinations. The second would be this regtest, and I could take out the tie example so there's no overlap with the other test. What do you think? I can't see an advantage in having two regtests. I'd prefer to extend this one. https://codereview.appspot.com/201140043/ ___ lilypond-devel mailing list lilypond-devel@gnu.org https://lists.gnu.org/mailman/listinfo/lilypond-devel
