+#!@TARGET_PYTHON@
+
+import optparse
import sys
import re
import os
+import string
+from gettext import gettext as _
+
+
+
+for d in ['@lilypond_datadir@',
+ '@lilypond_libdir@']:
+ sys.path.insert (0, os.path.join (d, 'python'))
-datadir = '@local_lilypond_datadir@'
-if not os.path.isdir (datadir):
- datadir = '@lilypond_datadir@'
-if os.environ.has_key ('LILYPONDPREFIX'):
- datadir = os.environ['LILYPONDPREFIX']
- while datadir[-1] == os.sep:
- datadir = datadir[:-1]
+# dynamic relocation, for GUB binaries.
+bindir = os.path.abspath (os.path.split (sys.argv[0])[0])
+for p in ['share', 'lib']:
+ datadir = os.path.abspath (bindir + '/../%s/lilypond/current/python/' % p)
+ sys.path.insert (0, datadir)
-if os.path.exists (os.path.join (datadir, 'share/lilypond/@TOPLEVEL_VERSION@/')):
- datadir = os.path.join (datadir, 'share/lilypond/@TOPLEVEL_VERSION@/')
-sys.path.insert (0, os.path.join (datadir, 'python'))
+
+
+import lilylib as ly
import musicxml
import musicexp
+
from rational import Rational
+
+def progress (str):
+ sys.stderr.write (str + '\n')
+ sys.stderr.flush ()
+
+
def musicxml_duration_to_lily (mxl_note):
- d = musicexp.Duration ()
- if mxl_note.get_maybe_exist_typed_child (musicxml.Type):
- d.duration_log = mxl_note.get_duration_log ()
- else:
- d.factor = mxl_note._duration
- d.duration_log = 0
-
- d.dots = len (mxl_note.get_typed_children (musicxml.Dot))
- d.factor = mxl_note._duration / d.get_length ()
-
- return d
-
+ d = musicexp.Duration ()
+ if mxl_note.get_maybe_exist_typed_child (musicxml.Type):
+ d.duration_log = mxl_note.get_duration_log ()
+ else:
+ d.duration_log = 0
+
+ d.dots = len (mxl_note.get_typed_children (musicxml.Dot))
+ d.factor = mxl_note._duration / d.get_length ()
+
+ return d
+
+def group_tuplets (music_list, events):
+
+
+ """Collect Musics from
+ MUSIC_LIST demarcated by EVENTS_LIST in TimeScaledMusic objects.
+ """
+
+
+ indices = []
+
+ j = 0
+ for (ev_chord, tuplet_elt, fraction) in events:
+ while (j < len (music_list)):
+ if music_list[j]== ev_chord:
+ break
+ j += 1
+ if tuplet_elt.type == 'start':
+ indices.append ((j, None, fraction))
+ elif tuplet_elt.type == 'stop':
+ indices[-1] = (indices[-1][0], j, indices[-1][2])
+
+ new_list = []
+ last = 0
+ for (i1, i2, frac) in indices:
+ if i1 >= i2:
+ continue
+
+ new_list.extend (music_list[last:i1])
+ seq = musicexp.SequentialMusic ()
+ last = i2 + 1
+ seq.elements = music_list[i1:last]
+
+ tsm = musicexp.TimeScaledMusic ()
+ tsm.element = seq
+
+ tsm.numerator = frac[0]
+ tsm.denominator = frac[1]
+
+ new_list.append (tsm)
+
+ new_list.extend (music_list[last:])
+ return new_list
+
+
+def musicxml_clef_to_lily (attributes):
+ change = musicexp.ClefChange ()
+ change.type = attributes.get_clef_sign ()
+ return change
+
+def musicxml_time_to_lily (attributes):
+ (beats, type) = attributes.get_time_signature ()
+
+ change = musicexp.TimeSignatureChange()
+ change.fraction = (beats, type)
+
+ return change
+
+def musicxml_key_to_lily (attributes):
+ start_pitch = musicexp.Pitch ()
+ (fifths, mode) = attributes.get_key_signature ()
+ try:
+ (n,a) = {
+ 'major' : (0,0),
+ 'minor' : (6,0),
+ }[mode]
+ start_pitch.step = n
+ start_pitch.alteration = a
+ except KeyError:
+ print 'unknown mode', mode
+
+ fifth = musicexp.Pitch()
+ fifth.step = 4
+ if fifths < 0:
+ fifths *= -1
+ fifth.step *= -1
+ fifth.normalize ()
+
+ start_pitch = musicexp.Pitch()
+ for x in range (fifths):
+ start_pitch = start_pitch.transposed (fifth)
+
+ start_pitch.octave = 0
+
+ change = musicexp.KeySignatureChange()
+ change.mode = mode
+ change.tonic = start_pitch
+ return change
+
+def musicxml_attributes_to_lily (attrs):
+ elts = []
+ attr_dispatch = {
+ 'clef': musicxml_clef_to_lily,
+ 'time': musicxml_time_to_lily,
+ 'key': musicxml_key_to_lily
+ }
+ for (k, func) in attr_dispatch.items ():
+ childs = attrs.get_named_children (k)
+
+ ## ugh: you get clefs spread over staves for piano
+ if childs:
+ elts.append (func (attrs))
+
+ return elts
+
+spanner_event_dict = {
+ 'slur' : musicexp.SlurEvent,
+ 'beam' : musicexp.BeamEvent,
+}
+spanner_type_dict = {
+ 'start': -1,
+ 'begin': -1,
+ 'stop': 1,
+ 'end' : 1
+}
+
+def musicxml_spanner_to_lily_event (mxl_event):
+ ev = None
+
+ name = mxl_event.get_name()
+ try:
+ func = spanner_event_dict[name]
+ ev = func()
+ except KeyError:
+ print 'unknown span event ', mxl_event
+
+ try:
+ key = mxl_event.get_type ()
+ ev.span_direction = spanner_type_dict[key]
+ except KeyError:
+ print 'unknown span type', key, 'for', name
+
+ return ev
+
+instrument_drumtype_dict = {
+ 'Acoustic Snare Drum': 'acousticsnare',
+ 'Side Stick': 'sidestick',
+ 'Open Triangle': 'opentriangle',
+ 'Mute Triangle': 'mutetriangle',
+ 'Tambourine': 'tambourine',
+
+}
+
+def musicxml_note_to_lily_main_event (n):
+ pitch = None
+ duration = None
+
+ mxl_pitch = n.get_maybe_exist_typed_child (musicxml.Pitch)
+ event = None
+ if mxl_pitch:
+ pitch = musicxml_pitch_to_lily (mxl_pitch)
+ event = musicexp.NoteEvent()
+ event.pitch = pitch
+
+ acc = n.get_maybe_exist_named_child ('accidental')
+ if acc:
+ # let's not force accs everywhere.
+ event.cautionary = acc.editorial
+
+ elif n.get_maybe_exist_typed_child (musicxml.Rest):
+ event = musicexp.RestEvent()
+ elif n.instrument_name:
+ event = musicexp.NoteEvent ()
+ event.drum_type = instrument_drumtype_dict[n.instrument_name]
+
+
+ if not event:
+ n.message ("could not find suitable event")
+
+ event.duration = musicxml_duration_to_lily (n)
+ return event
+
+
+## todo
+class NegativeSkip:
+ def __init__ (self, here, dest):
+ self.here = here
+ self.dest = dest
+
+class LilyPondVoiceBuilder:
+ def __init__ (self):
+ self.elements = []
+ self.end_moment = Rational (0)
+ self.begin_moment = Rational (0)
+ self.pending_multibar = Rational (0)
+
+ def _insert_multibar (self):
+ r = musicexp.MultiMeasureRest ()
+ r.duration = musicexp.Duration()
+ r.duration.duration_log = 0
+ r.duration.factor = self.pending_multibar
+ self.elements.append (r)
+ self.begin_moment = self.end_moment
+ self.end_moment = self.begin_moment + self.pending_multibar
+ self.pending_multibar = Rational (0)
+
+ def add_multibar_rest (self, duration):
+ self.pending_multibar += duration
+
+
+ def add_music (self, music, duration):
+ assert isinstance (music, musicexp.Music)
+ if self.pending_multibar > Rational (0):
+ self._insert_multibar ()
+
+ self.elements.append (music)
+ self.begin_moment = self.end_moment
+ self.end_moment = self.begin_moment + duration
+
+ def add_bar_check (self, number):
+ b = musicexp.BarCheck ()
+ b.bar_number = number
+ self.add_music (b, Rational (0))
+
+ def jumpto (self, moment):
+ current_end = self.end_moment + self.pending_multibar
+ diff = moment - current_end
+
+ if diff < Rational (0):
+ raise NegativeSkip(current_end, moment)
+
+ if diff > Rational (0):
+ skip = musicexp.SkipEvent()
+ skip.duration.duration_log = 0
+ skip.duration.factor = diff
+
+ evc = musicexp.EventChord ()
+ evc.elements.append (skip)
+ self.add_music (evc, diff)
+
+ def last_event_chord (self, starting_at):
+
+ value = None
+ if (self.elements
+ and isinstance (self.elements[-1], musicexp.EventChord)
+ and self.begin_moment == starting_at):
+ value = self.elements[-1]
+ else:
+ self.jumpto (starting_at)
+ value = None
+
+ return value
+
+ def correct_negative_skip (self, goto):
+ self.end_moment = goto
+ self.begin_moment = goto
+ evc = musicexp.EventChord ()
+ self.elements.append (evc)
+
def musicxml_voice_to_lily_voice (voice):
-
- ly_voice = []
- ly_now = Rational (0)
- for n in voice:
- if not n.__class__.__name__ == 'Note':
- print 'not a note?'
- continue
-
- pitch = None
- duration = None
-
- mxl_pitch = n.get_maybe_exist_typed_child (musicxml.Pitch)
- event = None
-
- if mxl_pitch:
- pitch = musicxml_pitch_to_lily (mxl_pitch)
- event = musicexp.NoteEvent()
- event.pitch = pitch
- elif n.get_maybe_exist_typed_child (musicxml.Rest):
- event = musicexp.RestEvent()
-
- event.duration = musicxml_duration_to_lily (n)
- ev_chord = None
- if None == n.get_maybe_exist_typed_child (musicxml.Chord):
- if ly_voice:
- ly_now += ly_voice[-1].get_length ()
-
- if ly_now <> n._when:
- diff = n._when - ly_now
- if diff < Rational (0):
- print 'huh: negative skip', n._when, ly_now, n._duration
- diff = Rational (1,314159265)
-
-
- skip = musicexp.SkipEvent()
- skip.duration.duration_log = 0
- skip.duration.factor = diff
-
- evc = musicexp.EventChord ()
- evc.elements.append (skip)
- ly_voice.append (evc)
- ly_now = n._when
-
- ly_voice.append (musicexp.EventChord())
- else:
- pass
- #print 'append'
- ev_chord = ly_voice[-1]
- ev_chord.elements.append (event)
-
-
- seq_music = musicexp.SequentialMusic()
-
-
- seq_musicexp.elements = ly_voice
- return seq_music
+ tuplet_events = []
+ modes_found = {}
+
+ voice_builder = LilyPondVoiceBuilder()
+
+ for n in voice._elements:
+ if n.get_name () == 'forward':
+ continue
+
+ if not n.get_maybe_exist_named_child ('chord'):
+ try:
+ voice_builder.jumpto (n._when)
+ except NegativeSkip, neg:
+ voice_builder.correct_negative_skip (n._when)
+ n.message ("Negative skip? from %s to %s, diff %s" % (neg.here, neg.dest, neg.dest - neg.here))
+
+ if isinstance (n, musicxml.Attributes):
+ if n.is_first () and n._measure_position == Rational (0):
+ voice_builder.add_bar_check (int (n.get_parent ().number))
+ for a in musicxml_attributes_to_lily (n):
+ voice_builder.add_music (a, Rational (0))
+ continue
+
+ if not n.__class__.__name__ == 'Note':
+ print 'not a Note or Attributes?', n
+ continue
+
+ rest = n.get_maybe_exist_typed_child (musicxml.Rest)
+ if (rest
+ and rest.is_whole_measure ()):
+
+ voice_builder.add_multibar_rest (n._duration)
+ continue
+
+ if n.is_first () and n._measure_position == Rational (0):
+ num = int (n.get_parent ().number)
+ voice_builder.add_bar_check (num)
+
+ main_event = musicxml_note_to_lily_main_event (n)
+
+ try:
+ if main_event.drum_type:
+ modes_found['drummode'] = True
+ except AttributeError:
+ pass
+
+
+ ev_chord = voice_builder.last_event_chord (n._when)
+ if not ev_chord:
+ ev_chord = musicexp.EventChord()
+ voice_builder.add_music (ev_chord, n._duration)
+
+ ev_chord.append (main_event)
+
+ notations = n.get_maybe_exist_typed_child (musicxml.Notations)
+ tuplet_event = None
+ span_events = []
+ if notations:
+ if notations.get_tuplet():
+ tuplet_event = notations.get_tuplet()
+ mod = n.get_maybe_exist_typed_child (musicxml.Time_modification)
+ frac = (1,1)
+ if mod:
+ frac = mod.get_fraction ()
+
+ tuplet_events.append ((ev_chord, tuplet_event, frac))
+
+ slurs = [s for s in notations.get_named_children ('slur')
+ if s.get_type () in ('start','stop')]
+ if slurs:
+ if len (slurs) > 1:
+ print 'more than 1 slur?'
+
+ lily_ev = musicxml_spanner_to_lily_event (slurs[0])
+ ev_chord.append (lily_ev)
+
+ mxl_tie = notations.get_tie ()
+ if mxl_tie and mxl_tie.type == 'start':
+ ev_chord.append (musicexp.TieEvent ())
+
+ mxl_beams = [b for b in n.get_named_children ('beam')
+ if (b.get_type () in ('begin', 'end')
+ and b.is_primary ())]
+ if mxl_beams:
+ beam_ev = musicxml_spanner_to_lily_event (mxl_beams[0])
+ if beam_ev:
+ ev_chord.append (beam_ev)
+
+ if tuplet_event:
+ mod = n.get_maybe_exist_typed_child (musicxml.Time_modification)
+ frac = (1,1)
+ if mod:
+ frac = mod.get_fraction ()
+
+ tuplet_events.append ((ev_chord, tuplet_event, frac))
+
+ ## force trailing mm rests to be written out.
+ voice_builder.add_music (musicexp.EventChord (), Rational (0))
+
+ ly_voice = group_tuplets (voice_builder.elements, tuplet_events)
+
+ seq_music = musicexp.SequentialMusic()
+
+ if 'drummode' in modes_found.keys ():
+ ## \key <pitch> barfs in drummode.
+ ly_voice = [e for e in ly_voice
+ if not isinstance(e, musicexp.KeySignatureChange)]
+
+ seq_music.elements = ly_voice
+
+
+
+ if len (modes_found) > 1:
+ print 'Too many modes found', modes_found.keys ()
+
+ return_value = seq_music
+ for mode in modes_found.keys ():
+ v = musicexp.ModeChangingMusicWrapper()
+ v.element = return_value
+ v.mode = mode
+ return_value = v
+
+ return return_value
def musicxml_id_to_lily (id):
- digits = ['one', 'two', 'three', 'four', 'five', 'six', 'seven', 'eight',
- 'nine', 'ten']
-
- for dig in digits:
- d = digits.index (dig) + 1
- dig = dig[0].upper() + dig[1:]
- id = re.sub ('%d' % d, dig, id)
+ digits = ['one', 'two', 'three', 'four', 'five', 'six', 'seven', 'eight',
+ 'nine', 'ten']
+
+ for dig in digits:
+ d = digits.index (dig) + 1
+ dig = dig[0].upper() + dig[1:]
+ id = re.sub ('%d' % d, dig, id)
- id = re.sub ('[^a-zA-Z]', 'X', id)
- return id
+ id = re.sub ('[^a-zA-Z]', 'X', id)
+ return id
def musicxml_pitch_to_lily (mxl_pitch):
- p = musicexp.Pitch()
- p.alteration = mxl_pitch.get_alteration ()
- p.step = (ord (mxl_pitch.get_step ()) - ord ('A') + 7 - 2) % 7
- p.octave = mxl_pitch.get_octave () -4
- return p
+ p = musicexp.Pitch()
+ p.alteration = mxl_pitch.get_alteration ()
+ p.step = (ord (mxl_pitch.get_step ()) - ord ('A') + 7 - 2) % 7
+ p.octave = mxl_pitch.get_octave () - 4
+ return p
+
+def voices_in_part (part):
+ """Return a Name -> Voice dictionary for PART"""
+ part.interpret ()
+ part.extract_voices ()
+ voice_dict = part.get_voices ()
+
+ return voice_dict
+
+def voices_in_part_in_parts (parts):
+ """return a Part -> Name -> Voice dictionary"""
+ return dict([(p, voices_in_part (p)) for p in parts])
+
def get_all_voices (parts):
- all_voices = {}
- for p in parts:
- p.interpret ()
- p.extract_voices ()
- voice_dict = p.get_voices ()
-
- for (id, voice) in voice_dict.items ():
- m = musicxml_voice_to_lily_voice (voice)
- m_name = 'Part' + p.name + 'Voice' + id
- m_name = musicxml_id_to_lily (m_name)
- all_voices[m_name] = m
+ all_voices = voices_in_part_in_parts (parts)
+
+ all_ly_voices = {}
+ for p, name_voice in all_voices.items ():
+
+ part_ly_voices = {}
+ for n, v in name_voice.items ():
+ progress ("Converting to LilyPond expressions...")
+ part_ly_voices[n] = (musicxml_voice_to_lily_voice (v), v)
+
+ all_ly_voices[p] = part_ly_voices
+
+ return all_ly_voices
+
+
+def option_parser ():
+ p = ly.get_option_parser(usage='musicxml2ly FILE.xml',
+ version = """%prog (LilyPond) @TOPLEVEL_VERSION@
+
+This program is free software. It is covered by the GNU General Public
+License and you are welcome to change it and/or distribute copies of it
+under certain conditions. Invoke as `lilypond --warranty' for more
+information.
+
+Copyright (c) 2005--2006 by
+ Han-Wen Nienhuys <hanwen@xs4all.nl> and
+ Jan Nieuwenhuizen <janneke@gnu.org>
+""",
+
+ description =
+ """Convert MusicXML file to LilyPond input.
+"""
+ )
+ p.add_option ('-v', '--verbose',
+ action = "store_true",
+ dest = 'verbose',
+ help = 'be verbose')
+
+ p.add_option ('', '--lxml',
+ action="store_true",
+ default=False,
+ dest="use_lxml",
+ help="Use lxml.etree; uses less memory and cpu time.")
+
+ p.add_option ('-o', '--output',
+ metavar = 'FILE',
+ action="store",
+ default=None,
+ type='string',
+ dest='output_name',
+ help='set output file')
+
+ p.add_option_group ('', description = '''Report bugs via http://post.gmane.org/post.php?group=gmane.comp.gnu.lilypond.bugs
+''')
+ return p
+
+def music_xml_voice_name_to_lily_name (part, name):
+ str = "Part%sVoice%s" % (part.id, name)
+ return musicxml_id_to_lily (str)
+
+def print_voice_definitions (printer, voices):
+ for (part, nv_dict) in voices.items():
+
+ for (name, (voice, mxlvoice)) in nv_dict.items ():
+ k = music_xml_voice_name_to_lily_name (part, name)
+ printer.dump ('%s = ' % k)
+ voice.print_ly (printer)
+ printer.newline()
+
+
+def uniq_list (l):
+ return dict ([(elt,1) for elt in l]).keys ()
+
+def print_score_setup (printer, part_list, voices):
+ part_dict = dict ([(p.id, p) for p in voices.keys ()])
+
+ printer ('<<')
+ printer.newline ()
+ for part_definition in part_list:
+ part_name = part_definition.id
+ try:
+ part = part_dict[part_name]
+ except KeyError:
+ print 'unknown part in part-list:', part_name
+ continue
+
+ nv_dict = voices[part]
+ staves = reduce (lambda x,y: x+ y,
+ [mxlvoice._staves.keys ()
+ for (v, mxlvoice) in nv_dict.values ()],
+ [])
+
+ if len (staves) > 1:
+ staves = uniq_list (staves)
+ staves.sort ()
+ printer ('\\context PianoStaff << ')
+ printer.newline ()
+
+ for s in staves:
+ staff_voices = [music_xml_voice_name_to_lily_name (part, voice_name)
+ for (voice_name, (v, mxlvoice)) in nv_dict.items ()
+ if mxlvoice._start_staff == s]
+
+ printer ('\\context Staff = "%s" << ' % s)
+ printer.newline ()
+ for v in staff_voices:
+ printer ('\\context Voice = "%s" \\%s' % (v,v))
+ printer.newline ()
+ printer ('>>')
+ printer.newline ()
+
+ printer ('>>')
+ printer.newline ()
+
+ else:
+ printer ('\\new Staff <<')
+ printer.newline ()
+ for (n,v) in nv_dict.items ():
+
+ n = music_xml_voice_name_to_lily_name (part, n)
+ printer ('\\context Voice = "%s" \\%s' % (n,n))
+ printer ('>>')
+ printer.newline ()
+
+ printer ('>>')
+ printer.newline ()
+
+def print_ly_preamble (printer, filename):
+ printer.dump_version ()
+ printer.print_verbatim ('%% converted from %s\n' % filename)
+
+def read_musicxml (filename, use_lxml):
+ if use_lxml:
+ import lxml.etree
+
+ tree = lxml.etree.parse (filename)
+ mxl_tree = musicxml.lxml_demarshal_node (tree.getroot ())
+ return mxl_tree
+ else:
+ from xml.dom import minidom, Node
+
+ doc = minidom.parse(filename)
+ node = doc.documentElement
+ return musicxml.minidom_demarshal_node (node)
+
+ return None
+
+
+def convert (filename, options):
+ progress ("Reading MusicXML from %s ..." % filename)
+
+ tree = read_musicxml (filename, options.use_lxml)
+
+ part_list = []
+ id_instrument_map = {}
+ if tree.get_maybe_exist_typed_child (musicxml.Part_list):
+ mxl_pl = tree.get_maybe_exist_typed_child (musicxml.Part_list)
+ part_list = mxl_pl.get_named_children ("score-part")
+
+ parts = tree.get_typed_children (musicxml.Part)
+ voices = get_all_voices (parts)
+
+ if not options.output_name:
+ options.output_name = os.path.basename (filename)
+ options.output_name = os.path.splitext (options.output_name)[0]
+
+
+ defs_ly_name = options.output_name + '-defs.ly'
+ driver_ly_name = options.output_name + '.ly'
+
+ printer = musicexp.Output_printer()
+ progress ("Output to `%s'" % defs_ly_name)
+ printer.set_file (open (defs_ly_name, 'w'))
+
+ print_ly_preamble (printer, filename)
+ print_voice_definitions (printer, voices)
+
+ printer.close ()
+
+
+ progress ("Output to `%s'" % driver_ly_name)
+ printer = musicexp.Output_printer()
+ printer.set_file (open (driver_ly_name, 'w'))
+ print_ly_preamble (printer, filename)
+ printer.dump (r'\include "%s"' % defs_ly_name)
+ print_score_setup (printer, part_list, voices)
+ printer.newline ()
- return all_voices
+ return voices
-printer = musicexp.Output_printer()
+def main ():
+ opt_parser = option_parser()
-tree = musicxml.read_musicxml (sys.argv[1])
-parts = tree.get_typed_children (musicxml.Part)
+ (options, args) = opt_parser.parse_args ()
+ if not args:
+ opt_parser.print_usage()
+ sys.exit (2)
-voices = get_all_voices (parts)
-for (k,v) in voices.items():
- print '%s = \n' % k
- v.print_ly (printer.dump)
- printer.newline()
-
+ voices = convert (args[0], options)
+if __name__ == '__main__':
+ main()