1 # -*- coding: utf-8 -*-
13 ly.stderr_write ((_ ("error: %s") % str) + "\n")
16 def escape_ly_output_string (input_string):
17 return_string = input_string
18 needs_quotes = not re.match (u"^[a-zA-ZäöüÜÄÖßñ]*$", return_string);
20 return_string = "\"" + string.replace (return_string, "\"", "\\\"") + "\""
24 def musicxml_duration_to_log (dur):
36 'long': -2}.get (dur, 0)
45 self._name = 'xml_node'
47 self._attribute_dict = {}
49 def get_parent (self):
53 return self._parent.get_typed_children (self.__class__)[0] == self
64 if not self._children:
67 return ''.join ([c.get_text () for c in self._children])
69 def message (self, msg):
70 ly.stderr_write (msg+'\n')
74 sys.stderr.write (' In: <%s %s>\n' % (p._name, ' '.join (['%s=%s' % item for item in p._attribute_dict.items ()])))
77 def get_typed_children (self, klass):
81 return [c for c in self._children if isinstance(c, klass)]
83 def get_named_children (self, nm):
84 return self.get_typed_children (get_class (nm))
86 def get_named_child (self, nm):
87 return self.get_maybe_exist_named_child (nm)
89 def get_children (self, predicate):
90 return [c for c in self._children if predicate(c)]
92 def get_all_children (self):
95 def get_maybe_exist_named_child (self, name):
96 return self.get_maybe_exist_typed_child (get_class (name))
98 def get_maybe_exist_typed_child (self, klass):
99 cn = self.get_typed_children (klass)
105 raise "More than 1 child", klass
107 def get_unique_typed_child (self, klass):
108 cn = self.get_typed_children(klass)
110 sys.stderr.write (self.__dict__ + '\n')
111 raise 'Child is not unique for', (klass, 'found', cn)
115 def get_named_child_value_number (self, name, default):
116 n = self.get_maybe_exist_named_child (name)
118 return string.atoi (n.get_text())
123 class Music_xml_node (Xml_node):
125 Xml_node.__init__ (self)
126 self.duration = Rational (0)
127 self.start = Rational (0)
129 class Work (Xml_node):
130 def get_work_information (self, tag):
131 wt = self.get_maybe_exist_named_child (tag)
133 return wt.get_text ()
137 def get_work_title (self):
138 return self.get_work_information ('work-title')
139 def get_work_number (self):
140 return self.get_work_information ('work-number')
142 return self.get_work_information ('opus')
144 class Identification (Xml_node):
145 def get_rights (self):
146 rights = self.get_maybe_exist_named_child ('rights')
148 return rights.get_text ()
152 def get_creator (self, type):
153 creators = self.get_named_children ('creator')
154 # return the first creator tag that has the particular type
156 if hasattr (i, 'type') and i.type == type:
160 def get_composer (self):
161 c = self.get_creator ('composer')
164 creators = self.get_named_children ('creator')
165 # return the first creator tag that has no type at all
167 if not hasattr (i, 'type'):
170 def get_arranger (self):
171 return self.get_creator ('arranger')
172 def get_editor (self):
173 return self.get_creator ('editor')
175 v = self.get_creator ('lyricist')
178 v = self.get_creator ('poet')
181 def get_encoding_information (self, type):
182 enc = self.get_named_children ('encoding')
184 children = enc[0].get_named_children (type)
186 return children[0].get_text ()
190 def get_encoding_software (self):
191 return self.get_encoding_information ('software')
192 def get_encoding_date (self):
193 return self.get_encoding_information ('encoding-date')
194 def get_encoding_person (self):
195 return self.get_encoding_information ('encoder')
196 def get_encoding_description (self):
197 return self.get_encoding_information ('encoding-description')
199 def get_encoding_software_list (self):
200 enc = self.get_named_children ('encoding')
203 softwares = e.get_named_children ('software')
205 software.append (s.get_text ())
208 def get_file_description (self):
209 misc = self.get_named_children ('miscellaneous')
211 misc_fields = m.get_named_children ('miscellaneous-field')
212 for mf in misc_fields:
213 if hasattr (mf, 'name') and mf.name == 'description':
214 return mf.get_text ()
219 class Duration (Music_xml_node):
220 def get_length (self):
221 dur = int (self.get_text ()) * Rational (1,4)
224 class Hash_comment (Music_xml_node):
226 class Hash_text (Music_xml_node):
229 class Pitch (Music_xml_node):
231 ch = self.get_unique_typed_child (get_class (u'step'))
232 step = ch.get_text ().strip ()
234 def get_octave (self):
235 ch = self.get_unique_typed_child (get_class (u'octave'))
237 step = ch.get_text ().strip ()
240 def get_alteration (self):
241 ch = self.get_maybe_exist_typed_child (get_class (u'alter'))
244 alter = int (ch.get_text ().strip ())
247 class Unpitched (Music_xml_node):
249 ch = self.get_unique_typed_child (get_class (u'display-step'))
250 step = ch.get_text ().strip ()
253 def get_octave (self):
254 ch = self.get_unique_typed_child (get_class (u'display-octave'))
257 octave = ch.get_text ().strip ()
262 class Measure_element (Music_xml_node):
263 def get_voice_id (self):
264 voice_id = self.get_maybe_exist_named_child ('voice')
266 return voice_id.get_text ()
271 # Look at all measure elements (previously we had self.__class__, which
272 # only looked at objects of the same type!
273 cn = self._parent.get_typed_children (Measure_element)
274 # But only look at the correct voice; But include Attributes, too, which
275 # are not tied to any particular voice
276 cn = [c for c in cn if (c.get_voice_id () == self.get_voice_id ()) or isinstance (c, Attributes)]
279 class Attributes (Measure_element):
281 Measure_element.__init__ (self)
283 self._original_tag = None
286 cn = self._parent.get_typed_children (self.__class__)
287 if self._original_tag:
288 return cn[0] == self._original_tag
292 def set_attributes_from_previous (self, dict):
293 self._dict.update (dict)
295 def read_self (self):
296 for c in self.get_all_children ():
297 self._dict[c.get_name()] = c
299 def get_named_attribute (self, name):
300 return self._dict.get (name)
302 def get_measure_length (self):
303 (n,d) = self.get_time_signature ()
304 return Rational (n,d)
306 def get_time_signature (self):
307 "return time sig as a (beat, beat-type) tuple"
310 mxl = self.get_named_attribute ('time')
312 beats = mxl.get_maybe_exist_named_child ('beats')
313 type = mxl.get_maybe_exist_named_child ('beat-type')
314 return (int (beats.get_text ()),
315 int (type.get_text ()))
319 error (_ ("requested time signature, but time sig is unknown"))
322 # returns clef information in the form ("cleftype", position, octave-shift)
323 def get_clef_information (self):
324 clefinfo = ['G', 2, 0]
325 mxl = self.get_named_attribute ('clef')
328 sign = mxl.get_maybe_exist_named_child ('sign')
330 clefinfo[0] = sign.get_text()
331 line = mxl.get_maybe_exist_named_child ('line')
333 clefinfo[1] = string.atoi (line.get_text ())
334 octave = mxl.get_maybe_exist_named_child ('clef-octave-change')
336 clefinfo[2] = string.atoi (octave.get_text ())
339 def get_key_signature (self):
340 "return (fifths, mode) tuple"
342 key = self.get_named_attribute ('key')
343 mode_node = key.get_maybe_exist_named_child ('mode')
346 mode = mode_node.get_text ()
348 fifths = int (key.get_maybe_exist_named_child ('fifths').get_text ())
349 return (fifths, mode)
351 class Barline (Measure_element):
353 class BarStyle (Music_xml_node):
355 class Partial (Measure_element):
356 def __init__ (self, partial):
357 Measure_element.__init__ (self)
358 self.partial = partial
360 class Note (Measure_element):
362 Measure_element.__init__ (self)
363 self.instrument_name = ''
364 self._after_grace = False
366 return self.get_maybe_exist_named_child (u'grace')
367 def is_after_grace (self):
368 if not self.is_grace():
370 gr = self.get_maybe_exist_typed_child (Grace)
371 return self._after_grace or hasattr (gr, 'steal-time-previous');
373 def get_duration_log (self):
374 ch = self.get_maybe_exist_named_child (u'type')
377 log = ch.get_text ().strip()
378 return musicxml_duration_to_log (log)
379 elif self.get_maybe_exist_named_child (u'grace'):
380 # FIXME: is it ok to default to eight note for grace notes?
383 self.message (_ ("Encountered note at %s with %s duration (no <type> element):") % (self.start, self.duration) )
386 def get_factor (self):
389 def get_pitches (self):
390 return self.get_typed_children (get_class (u'pitch'))
392 class Part_list (Music_xml_node):
394 Music_xml_node.__init__ (self)
395 self._id_instrument_name_dict = {}
397 def generate_id_instrument_dict (self):
399 ## not empty to make sure this happens only once.
401 for score_part in self.get_named_children ('score-part'):
402 for instr in score_part.get_named_children ('score-instrument'):
404 name = instr.get_named_child ("instrument-name")
405 mapping[id] = name.get_text ()
407 self._id_instrument_name_dict = mapping
409 def get_instrument (self, id):
410 if not self._id_instrument_name_dict:
411 self.generate_id_instrument_dict()
413 instrument_name = self._id_instrument_name_dict.get (id)
415 return instrument_name
417 ly.stderr_write (_ ("Unable to find instrument for ID=%s\n") % id)
420 class Part_group (Music_xml_node):
422 class Score_part (Music_xml_node):
425 class Measure (Music_xml_node):
427 Music_xml_node.__init__ (self)
429 def is_implicit (self):
430 return hasattr (self, 'implicit') and self.implicit == 'yes'
431 def get_notes (self):
432 return self.get_typed_children (get_class (u'note'))
434 class Syllabic (Music_xml_node):
435 def continued (self):
436 text = self.get_text()
437 return (text == "begin") or (text == "middle")
438 class Text (Music_xml_node):
441 class Lyric (Music_xml_node):
442 def get_number (self):
443 if hasattr (self, 'number'):
448 def lyric_to_text (self):
450 syllabic = self.get_maybe_exist_typed_child (Syllabic)
452 continued = syllabic.continued ()
453 text = self.get_maybe_exist_typed_child (Text)
456 text = text.get_text()
457 # We need to convert soft hyphens to -, otherwise the ascii codec as well
458 # as lilypond will barf on that character
459 text = string.replace( text, u'\xad', '-' )
461 if text == "-" and continued:
463 elif text == "_" and continued:
465 elif continued and text:
466 return escape_ly_output_string (text) + " --"
470 return escape_ly_output_string (text)
474 class Musicxml_voice:
478 self._start_staff = None
480 self._has_lyrics = False
482 def add_element (self, e):
483 self._elements.append (e)
484 if (isinstance (e, Note)
485 and e.get_maybe_exist_typed_child (Staff)):
486 name = e.get_maybe_exist_typed_child (Staff).get_text ()
488 if not self._start_staff and not e.get_maybe_exist_typed_child (Grace):
489 self._start_staff = name
490 self._staves[name] = True
492 lyrics = e.get_typed_children (Lyric)
493 if not self._has_lyrics:
494 self.has_lyrics = len (lyrics) > 0
498 if (nr > 0) and not (nr in self._lyrics):
499 self._lyrics.append (nr)
501 def insert (self, idx, e):
502 self._elements.insert (idx, e)
504 def get_lyrics_numbers (self):
505 if (len (self._lyrics) == 0) and self._has_lyrics:
506 #only happens if none of the <lyric> tags has a number attribute
512 class Part (Music_xml_node):
514 Music_xml_node.__init__ (self)
516 self._staff_attributes_dict = {}
518 def get_part_list (self):
520 while n and n.get_name() != 'score-partwise':
523 return n.get_named_child ('part-list')
525 def interpret (self):
526 """Set durations and starting points."""
527 """The starting point of the very first note is 0!"""
529 part_list = self.get_part_list ()
532 factor = Rational (1)
534 attributes_object = None
535 measures = self.get_typed_children (Measure)
536 last_moment = Rational (-1)
537 last_measure_position = Rational (-1)
538 measure_position = Rational (0)
539 measure_start_moment = now
540 is_first_measure = True
541 previous_measure = None
542 # Graces at the end of a measure need to have their position set to the
546 # implicit measures are used for artificial measures, e.g. when
547 # a repeat bar line splits a bar into two halves. In this case,
548 # don't reset the measure position to 0. They are also used for
549 # upbeats (initial value of 0 fits these, too).
550 # Also, don't reset the measure position at the end of the loop,
551 # but rather when starting the next measure (since only then do we
552 # know if the next measure is implicit and continues that measure)
553 if not m.is_implicit ():
554 # Warn about possibly overfull measures and reset the position
555 if attributes_object and previous_measure and previous_measure.partial == 0:
556 length = attributes_object.get_measure_length ()
557 new_now = measure_start_moment + length
559 problem = 'incomplete'
562 ## only for verbose operation.
563 if problem <> 'incomplete' and previous_measure:
564 previous_measure.message ('%s measure? Expected: %s, Difference: %s' % (problem, now, new_now - now))
566 measure_start_moment = now
567 measure_position = Rational (0)
569 for n in m.get_all_children ():
570 # figured bass has a duration, but applies to the next note
571 # and should not change the current measure position!
572 if isinstance (n, FiguredBass):
573 n._divisions = factor.denominator ()
575 n._measure_position = measure_position
578 if isinstance (n, Hash_text):
582 if n.__class__ == Attributes:
583 n.set_attributes_from_previous (attributes_dict)
585 attributes_dict = n._dict.copy ()
586 attributes_object = n
588 factor = Rational (1,
589 int (attributes_dict.get ('divisions').get_text ()))
592 if (n.get_maybe_exist_typed_child (Duration)):
593 mxl_dur = n.get_maybe_exist_typed_child (Duration)
594 dur = mxl_dur.get_length () * factor
596 if n.get_name() == 'backup':
598 # reset all graces before the backup to after-graces:
599 for n in pending_graces:
600 n._when = n._prev_when
601 n._measure_position = n._prev_measure_position
602 n._after_grace = True
604 if n.get_maybe_exist_typed_child (Grace):
607 rest = n.get_maybe_exist_typed_child (Rest)
609 and attributes_object
610 and attributes_object.get_measure_length () == dur):
612 rest._is_whole_measure = True
614 if (dur > Rational (0)
615 and n.get_maybe_exist_typed_child (Chord)):
617 measure_position = last_measure_position
620 n._measure_position = measure_position
622 # For all grace notes, store the previous note, in case need
623 # to turn the grace note into an after-grace later on!
624 if isinstance(n, Note) and n.is_grace ():
625 n._prev_when = last_moment
626 n._prev_measure_position = last_measure_position
627 # After-graces are placed at the same position as the previous note
628 if isinstance(n, Note) and n.is_after_grace ():
629 # TODO: We should do the same for grace notes at the end of
630 # a measure with no following note!!!
631 n._when = last_moment
632 n._measure_position = last_measure_position
633 elif isinstance(n, Note) and n.is_grace ():
634 pending_graces.append (n)
635 elif (dur > Rational (0)):
639 if dur > Rational (0):
641 last_measure_position = measure_position
643 measure_position += dur
644 elif dur < Rational (0):
645 # backup element, reset measure position
647 measure_position += dur
648 if measure_position < 0:
649 # backup went beyond the measure start => reset to 0
650 now -= measure_position
653 last_measure_position = measure_position
654 if n._name == 'note':
655 instrument = n.get_maybe_exist_named_child ('instrument')
657 n.instrument_name = part_list.get_instrument (instrument.id)
659 # reset all graces at the end of the measure to after-graces:
660 for n in pending_graces:
661 n._when = n._prev_when
662 n._measure_position = n._prev_measure_position
663 n._after_grace = True
665 # Incomplete first measures are not padded, but registered as partial
667 is_first_measure = False
668 # upbeats are marked as implicit measures
669 if attributes_object and m.is_implicit ():
670 length = attributes_object.get_measure_length ()
671 measure_end = measure_start_moment + length
672 if measure_end <> now:
676 # modify attributes so that only those applying to the given staff remain
677 def extract_attributes_for_staff (part, attr, staff):
678 attributes = copy.copy (attr)
679 attributes._children = [];
680 attributes._dict = attr._dict.copy ()
681 attributes._original_tag = attr
682 # copy only the relevant children over for the given staff
683 for c in attr._children:
684 if (not (hasattr (c, 'number') and (c.number != staff)) and
685 not (isinstance (c, Hash_text))):
686 attributes._children.append (c)
687 if not attributes._children:
692 def extract_voices (part):
694 measures = part.get_typed_children (Measure)
698 elements.append (Partial (m.partial))
699 elements.extend (m.get_all_children ())
700 # make sure we know all voices already so that dynamics, clefs, etc.
701 # can be assigned to the correct voices
702 voice_to_staff_dict = {}
704 voice_id = n.get_maybe_exist_named_child (u'voice')
707 vid = voice_id.get_text ()
709 staff_id = n.get_maybe_exist_named_child (u'staff')
712 sid = staff_id.get_text ()
715 if vid and not voices.has_key (vid):
716 voices[vid] = Musicxml_voice()
717 if vid and sid and not n.get_maybe_exist_typed_child (Grace):
718 if not voice_to_staff_dict.has_key (vid):
719 voice_to_staff_dict[vid] = sid
720 # invert the voice_to_staff_dict into a staff_to_voice_dict (since we
721 # need to assign staff-assigned objects like clefs, times, etc. to
722 # all the correct voices. This will never work entirely correct due
723 # to staff-switches, but that's the best we can do!
724 staff_to_voice_dict = {}
725 for (v,s) in voice_to_staff_dict.items ():
726 if not staff_to_voice_dict.has_key (s):
727 staff_to_voice_dict[s] = [v]
729 staff_to_voice_dict[s].append (v)
733 assign_to_next_note = []
736 voice_id = n.get_maybe_exist_typed_child (get_class ('voice'))
738 if not (voice_id or isinstance (n, Attributes) or
739 isinstance (n, Direction) or isinstance (n, Partial) or
740 isinstance (n, Barline) or isinstance (n, Harmony) or
741 isinstance (n, FiguredBass) ):
744 if isinstance (n, Attributes) and not start_attr:
748 if isinstance (n, Attributes):
749 # assign these only to the voices they really belongs to!
750 for (s, vids) in staff_to_voice_dict.items ():
751 staff_attributes = part.extract_attributes_for_staff (n, s)
754 voices[v].add_element (staff_attributes)
757 if isinstance (n, Partial) or isinstance (n, Barline):
758 for v in voices.keys ():
759 voices[v].add_element (n)
762 if isinstance (n, Direction):
763 staff_id = n.get_maybe_exist_named_child (u'staff')
765 staff_id = staff_id.get_text ()
767 dir_voices = staff_to_voice_dict.get (staff_id, voices.keys ())
769 dir_voices = voices.keys ()
771 voices[v].add_element (n)
774 if isinstance (n, Harmony) or isinstance (n, FiguredBass):
775 # store the harmony or figured bass element until we encounter
776 # the next note and assign it only to that one voice.
777 assign_to_next_note.append (n)
780 id = voice_id.get_text ()
781 if hasattr (n, 'print-object') and getattr (n, 'print-object') == "no":
785 for i in assign_to_next_note:
786 voices[id].add_element (i)
787 assign_to_next_note = []
788 voices[id].add_element (n)
790 # Assign all remaining elements from assign_to_next_note to the voice
791 # of the previous note:
792 for i in assign_to_next_note:
793 voices[id].add_element (i)
794 assign_to_next_note = []
797 for (s, vids) in staff_to_voice_dict.items ():
798 staff_attributes = part.extract_attributes_for_staff (start_attr, s)
799 staff_attributes.read_self ()
800 part._staff_attributes_dict[s] = staff_attributes
802 voices[v].insert (0, staff_attributes)
803 voices[v]._elements[0].read_self()
805 part._voices = voices
807 def get_voices (self):
809 def get_staff_attributes (self):
810 return self._staff_attributes_dict
812 class Notations (Music_xml_node):
814 ts = self.get_named_children ('tied')
815 starts = [t for t in ts if t.type == 'start']
821 def get_tuplets (self):
822 return self.get_typed_children (Tuplet)
824 class Time_modification(Music_xml_node):
825 def get_fraction (self):
826 b = self.get_maybe_exist_named_child ('actual-notes')
827 a = self.get_maybe_exist_named_child ('normal-notes')
828 return (int(a.get_text ()), int (b.get_text ()))
830 class Accidental (Music_xml_node):
832 Music_xml_node.__init__ (self)
833 self.editorial = False
834 self.cautionary = False
836 class Music_xml_spanner (Music_xml_node):
838 if hasattr (self, 'type'):
843 if hasattr (self, 'size'):
844 return string.atoi (self.size)
848 class Wedge (Music_xml_spanner):
851 class Tuplet (Music_xml_spanner):
854 class Bracket (Music_xml_spanner):
857 class Dashes (Music_xml_spanner):
860 class Slur (Music_xml_spanner):
864 class Beam (Music_xml_spanner):
866 return self.get_text ()
867 def is_primary (self):
868 return self.number == "1"
870 class Wavy_line (Music_xml_spanner):
873 class Pedal (Music_xml_spanner):
876 class Glissando (Music_xml_spanner):
879 class Slide (Music_xml_spanner):
882 class Octave_shift (Music_xml_spanner):
883 # default is 8 for the octave-shift!
885 if hasattr (self, 'size'):
886 return string.atoi (self.size)
890 class Chord (Music_xml_node):
893 class Dot (Music_xml_node):
896 # Rests in MusicXML are <note> blocks with a <rest> inside. This class is only
897 # for the inner <rest> element, not the whole rest block.
898 class Rest (Music_xml_node):
900 Music_xml_node.__init__ (self)
901 self._is_whole_measure = False
902 def is_whole_measure (self):
903 return self._is_whole_measure
905 ch = self.get_maybe_exist_typed_child (get_class (u'display-step'))
907 step = ch.get_text ().strip ()
911 def get_octave (self):
912 ch = self.get_maybe_exist_typed_child (get_class (u'display-octave'))
914 step = ch.get_text ().strip ()
919 class Type (Music_xml_node):
921 class Grace (Music_xml_node):
923 class Staff (Music_xml_node):
926 class Direction (Music_xml_node):
928 class DirType (Music_xml_node):
931 class Bend (Music_xml_node):
932 def bend_alter (self):
933 alter = self.get_maybe_exist_named_child ('bend-alter')
935 return alter.get_text()
939 class Words (Music_xml_node):
942 class Harmony (Music_xml_node):
945 class ChordPitch (Music_xml_node):
946 def step_class_name (self):
948 def alter_class_name (self):
951 ch = self.get_unique_typed_child (get_class (self.step_class_name ()))
952 return ch.get_text ().strip ()
953 def get_alteration (self):
954 ch = self.get_maybe_exist_typed_child (get_class (self.alter_class_name ()))
957 alter = int (ch.get_text ().strip ())
960 class Root (ChordPitch):
963 class Bass (ChordPitch):
964 def step_class_name (self):
966 def alter_class_name (self):
969 class ChordModification (Music_xml_node):
971 ch = self.get_maybe_exist_typed_child (get_class (u'degree-type'))
972 return {'add': 1, 'alter': 1, 'subtract': -1}.get (ch.get_text ().strip (), 0)
973 def get_value (self):
974 ch = self.get_maybe_exist_typed_child (get_class (u'degree-value'))
977 value = int (ch.get_text ().strip ())
979 def get_alter (self):
980 ch = self.get_maybe_exist_typed_child (get_class (u'degree-alter'))
983 value = int (ch.get_text ().strip ())
987 class Frame (Music_xml_node):
988 def get_frets (self):
989 return self.get_named_child_value_number ('frame-frets', 4)
990 def get_strings (self):
991 return self.get_named_child_value_number ('frame-strings', 6)
992 def get_first_fret (self):
993 return self.get_named_child_value_number ('first-fret', 1)
995 class Frame_Note (Music_xml_node):
996 def get_string (self):
997 return self.get_named_child_value_number ('string', 1)
999 return self.get_named_child_value_number ('fret', 0)
1000 def get_fingering (self):
1001 return self.get_named_child_value_number ('fingering', -1)
1002 def get_barre (self):
1003 n = self.get_maybe_exist_named_child ('barre')
1005 return getattr (n, 'type', '')
1009 class FiguredBass (Music_xml_node):
1012 class BeatUnit (Music_xml_node):
1015 class BeatUnitDot (Music_xml_node):
1018 class PerMinute (Music_xml_node):
1023 ## need this, not all classes are instantiated
1024 ## for every input file. Only add those classes, that are either directly
1025 ## used by class name or extend Music_xml_node in some way!
1027 '#comment': Hash_comment,
1029 'accidental': Accidental,
1030 'attributes': Attributes,
1032 'bar-style': BarStyle,
1035 'beat-unit': BeatUnit,
1036 'beat-unit-dot': BeatUnitDot,
1038 'bracket' : Bracket,
1041 'degree' : ChordModification,
1043 'direction': Direction,
1044 'direction-type': DirType,
1045 'duration': Duration,
1047 'frame-note': Frame_Note,
1048 'figured-bass': FiguredBass,
1049 'glissando': Glissando,
1052 'identification': Identification,
1055 'notations': Notations,
1057 'octave-shift': Octave_shift,
1059 'part-group': Part_group,
1060 'part-list': Part_list,
1062 'per-minute': PerMinute,
1066 'score-part': Score_part,
1070 'syllabic': Syllabic,
1072 'time-modification': Time_modification,
1075 'unpitched': Unpitched,
1076 'wavy-line': Wavy_line,
1082 def name2class_name (name):
1083 name = name.replace ('-', '_')
1084 name = name.replace ('#', 'hash_')
1085 name = name[0].upper() + name[1:].lower()
1089 def get_class (name):
1090 classname = class_dict.get (name)
1094 class_name = name2class_name (name)
1095 klass = new.classobj (class_name, (Music_xml_node,) , {})
1096 class_dict[name] = klass
1099 def lxml_demarshal_node (node):
1102 # Ignore comment nodes, which are also returned by the etree parser!
1103 if name is None or node.__class__.__name__ == "_Comment":
1105 klass = get_class (name)
1108 py_node._original = node
1109 py_node._name = name
1110 py_node._data = node.text
1111 py_node._children = [lxml_demarshal_node (cn) for cn in node.getchildren()]
1112 py_node._children = filter (lambda x: x, py_node._children)
1114 for c in py_node._children:
1117 for (k, v) in node.items ():
1118 py_node.__dict__[k] = v
1119 py_node._attribute_dict[k] = v
1123 def minidom_demarshal_node (node):
1124 name = node.nodeName
1126 klass = get_class (name)
1128 py_node._name = name
1129 py_node._children = [minidom_demarshal_node (cn) for cn in node.childNodes]
1130 for c in py_node._children:
1134 for (nm, value) in node.attributes.items ():
1135 py_node.__dict__[nm] = value
1136 py_node._attribute_dict[nm] = value
1138 py_node._data = None
1139 if node.nodeType == node.TEXT_NODE and node.data:
1140 py_node._data = node.data
1142 py_node._original = node
1146 if __name__ == '__main__':
1149 tree = lxml.etree.parse ('beethoven.xml')
1150 mxl_tree = lxml_demarshal_node (tree.getroot ())
1151 ks = class_dict.keys ()
1153 print '\n'.join (ks)