+# -*- coding: utf-8 -*-
import new
+import string
from rational import *
+import re
+import sys
+import copy
+import lilylib as ly
+
+_ = ly._
+
+def error (str):
+ ly.stderr_write ((_ ("error: %s") % str) + "\n")
+
+
+def escape_ly_output_string (input_string):
+ return_string = input_string
+ needs_quotes = not re.match (u"^[a-zA-ZäöüÜÄÖß,\.!:ñ]*$", return_string);
+ if needs_quotes:
+ return_string = "\"" + string.replace (return_string, "\"", "\\\"") + "\""
+ return return_string
+
+
+def musicxml_duration_to_log (dur):
+ return {'256th': 8,
+ '128th': 7,
+ '64th': 6,
+ '32nd': 5,
+ '16th': 4,
+ 'eighth': 3,
+ 'quarter': 2,
+ 'half': 1,
+ 'whole': 0,
+ 'breve': -1,
+ 'longa': -2,
+ 'long': -2}.get (dur, 0)
+
+
+
+def interpret_alter_element (alter_elm):
+ alter = 0
+ if alter_elm:
+ val = eval(alter_elm.get_text ())
+ if type (val) in (int, float):
+ alter = val
+ return alter
+
class Xml_node:
def __init__ (self):
return ''.join ([c.get_text () for c in self._children])
def message (self, msg):
- print msg
+ ly.stderr_write (msg+'\n')
p = self
while p:
- print ' In: <%s %s>' % (p._name, ' '.join (['%s=%s' % item for item in p._attribute_dict.items()]))
+ sys.stderr.write (' In: <%s %s>\n' % (p._name, ' '.join (['%s=%s' % item for item in p._attribute_dict.items ()])))
p = p.get_parent ()
+ def dump (self, indent = ''):
+ sys.stderr.write ('%s<%s%s>' % (indent, self._name, ''.join ([' %s=%s' % item for item in self._attribute_dict.items ()])))
+ non_text_children = [c for c in self._children if not isinstance (c, Hash_text)]
+ if non_text_children:
+ sys.stderr.write ('\n')
+ for c in self._children:
+ c.dump (indent + " ")
+ if non_text_children:
+ sys.stderr.write (indent)
+ sys.stderr.write ('</%s>\n' % self._name)
+
+
def get_typed_children (self, klass):
if not klass:
return []
def get_unique_typed_child (self, klass):
cn = self.get_typed_children(klass)
if len (cn) <> 1:
- print self.__dict__
+ sys.stderr.write (self.__dict__ + '\n')
raise 'Child is not unique for', (klass, 'found', cn)
return cn[0]
+ def get_named_child_value_number (self, name, default):
+ n = self.get_maybe_exist_named_child (name)
+ if n:
+ return string.atoi (n.get_text())
+ else:
+ return default
+
+
class Music_xml_node (Xml_node):
def __init__ (self):
Xml_node.__init__ (self)
class Identification (Xml_node):
def get_rights (self):
- rights = self.get_maybe_exist_named_child ('rights')
- if rights:
- return rights.get_text ()
- else:
- return ''
+ rights = self.get_named_children ('rights')
+ ret = []
+ for r in rights:
+ ret.append (r.get_text ())
+ return string.join (ret, "\n")
def get_creator (self, type):
creators = self.get_named_children ('creator')
- # return the first creator tag that has type 'editor'
+ # return the first creator tag that has the particular type
for i in creators:
if hasattr (i, 'type') and i.type == type:
return i.get_text ()
- else:
- return ''
+ return None
def get_composer (self):
c = self.get_creator ('composer')
for i in creators:
if not hasattr (i, 'type'):
return i.get_text ()
- return c
+ return None
def get_arranger (self):
return self.get_creator ('arranger')
def get_editor (self):
return self.get_creator ('editor')
def get_poet (self):
- return self.get_creator ('poet')
+ v = self.get_creator ('lyricist')
+ if v:
+ return v
+ v = self.get_creator ('poet')
+ return v
def get_encoding_information (self, type):
enc = self.get_named_children ('encoding')
if children:
return children[0].get_text ()
else:
- return ''
+ return None
def get_encoding_software (self):
return self.get_encoding_information ('software')
return self.get_encoding_information ('encoder')
def get_encoding_description (self):
return self.get_encoding_information ('encoding-description')
+
+ def get_encoding_software_list (self):
+ enc = self.get_named_children ('encoding')
+ software = []
+ for e in enc:
+ softwares = e.get_named_children ('software')
+ for s in softwares:
+ software.append (s.get_text ())
+ return software
+
+ def get_file_description (self):
+ misc = self.get_named_children ('miscellaneous')
+ for m in misc:
+ misc_fields = m.get_named_children ('miscellaneous-field')
+ for mf in misc_fields:
+ if hasattr (mf, 'name') and mf.name == 'description':
+ return mf.get_text ()
+ return None
+
class Duration (Music_xml_node):
class Hash_comment (Music_xml_node):
pass
+class Hash_text (Music_xml_node):
+ def dump (self, indent = ''):
+ sys.stderr.write ('%s' % string.strip (self._data))
class Pitch (Music_xml_node):
def get_step (self):
return step
def get_octave (self):
ch = self.get_unique_typed_child (get_class (u'octave'))
-
- step = ch.get_text ().strip ()
- return int (step)
+ octave = ch.get_text ().strip ()
+ return int (octave)
def get_alteration (self):
ch = self.get_maybe_exist_typed_child (get_class (u'alter'))
- alter = 0
+ return interpret_alter_element (ch)
+
+class Unpitched (Music_xml_node):
+ def get_step (self):
+ ch = self.get_unique_typed_child (get_class (u'display-step'))
+ step = ch.get_text ().strip ()
+ return step
+
+ def get_octave (self):
+ ch = self.get_unique_typed_child (get_class (u'display-octave'))
+
if ch:
- alter = int (ch.get_text ().strip ())
- return alter
+ octave = ch.get_text ().strip ()
+ return int (octave)
+ else:
+ return None
class Measure_element (Music_xml_node):
def get_voice_id (self):
return None
def is_first (self):
- cn = self._parent.get_typed_children (self.__class__)
- cn = [c for c in cn if c.get_voice_id () == self.get_voice_id ()]
+ # Look at all measure elements (previously we had self.__class__, which
+ # only looked at objects of the same type!
+ cn = self._parent.get_typed_children (Measure_element)
+ # But only look at the correct voice; But include Attributes, too, which
+ # are not tied to any particular voice
+ cn = [c for c in cn if (c.get_voice_id () == self.get_voice_id ()) or isinstance (c, Attributes)]
return cn[0] == self
class Attributes (Measure_element):
def __init__ (self):
Measure_element.__init__ (self)
self._dict = {}
+ self._original_tag = None
+ self._time_signature_cache = None
+ def is_first (self):
+ cn = self._parent.get_typed_children (self.__class__)
+ if self._original_tag:
+ return cn[0] == self._original_tag
+ else:
+ return cn[0] == self
+
def set_attributes_from_previous (self, dict):
self._dict.update (dict)
def get_named_attribute (self, name):
return self._dict.get (name)
+
+ def single_time_sig_to_fraction (self, sig):
+ if len (sig) < 2:
+ return 0
+ n = 0
+ for i in sig[0:-1]:
+ n += i
+ return Rational (n, sig[-1])
def get_measure_length (self):
- (n,d) = self.get_time_signature ()
- return Rational (n,d)
+ sig = self.get_time_signature ()
+ if not sig or len (sig) == 0:
+ return 1
+ if isinstance (sig[0], list):
+ # Complex compound time signature
+ l = 0
+ for i in sig:
+ l += self.single_time_sig_to_fraction (i)
+ return l
+ else:
+ # Simple (maybe compound) time signature of the form (beat, ..., type)
+ return self.single_time_sig_to_fraction (sig)
+ return 0
def get_time_signature (self):
- "return time sig as a (beat, beat-type) tuple"
+ "Return time sig as a (beat, beat-type) tuple. For compound signatures,"
+ "return either (beat, beat,..., beat-type) or ((beat,..., type), "
+ "(beat,..., type), ...)."
+ if self._time_signature_cache:
+ return self._time_signature_cache
try:
mxl = self.get_named_attribute ('time')
-
- beats = mxl.get_maybe_exist_named_child ('beats')
- type = mxl.get_maybe_exist_named_child ('beat-type')
- return (int (beats.get_text ()),
- int (type.get_text ()))
- except KeyError:
- print 'error: requested time signature, but time sig unknown'
+ if not mxl:
+ return None
+
+ if mxl.get_maybe_exist_named_child ('senza-misura'):
+ # TODO: Handle pieces without a time signature!
+ error (_ ("Senza-misura time signatures are not yet supported!"))
+ return (4, 4)
+ else:
+ signature = []
+ current_sig = []
+ for i in mxl.get_all_children ():
+ if isinstance (i, Beats):
+ beats = string.split (i.get_text ().strip (), "+")
+ current_sig = [int (j) for j in beats]
+ elif isinstance (i, BeatType):
+ current_sig.append (int (i.get_text ()))
+ signature.append (current_sig)
+ current_sig = []
+ if isinstance (signature[0], list) and len (signature) == 1:
+ signature = signature[0]
+ self._time_signature_cache = signature
+ return signature
+ except (KeyError, ValueError):
+ self.message (_ ("Unable to interpret time signature! Falling back to 4/4."))
return (4, 4)
- def get_clef_sign (self):
+ # returns clef information in the form ("cleftype", position, octave-shift)
+ def get_clef_information (self):
+ clefinfo = ['G', 2, 0]
mxl = self.get_named_attribute ('clef')
+ if not mxl:
+ return clefinfo
sign = mxl.get_maybe_exist_named_child ('sign')
if sign:
- return sign.get_text ()
- else:
- print 'clef requested, but unknow'
- return 'G'
+ clefinfo[0] = sign.get_text()
+ line = mxl.get_maybe_exist_named_child ('line')
+ if line:
+ clefinfo[1] = string.atoi (line.get_text ())
+ octave = mxl.get_maybe_exist_named_child ('clef-octave-change')
+ if octave:
+ clefinfo[2] = string.atoi (octave.get_text ())
+ return clefinfo
def get_key_signature (self):
- "return (fifths, mode) tuple"
+ "return (fifths, mode) tuple if the key signatures is given as "
+ "major/minor in the Circle of fifths. Otherwise return an alterations"
+ "list of the form [[step,alter<,octave>], [step,alter<,octave>], ...], "
+ "where the octave values are optional."
key = self.get_named_attribute ('key')
- mode_node = key.get_maybe_exist_named_child ('mode')
- mode = 'major'
- if mode_node:
- mode = mode_node.get_text ()
+ if not key:
+ return None
+ fifths_elm = key.get_maybe_exist_named_child ('fifths')
+ if fifths_elm:
+ mode_node = key.get_maybe_exist_named_child ('mode')
+ mode = None
+ if mode_node:
+ mode = mode_node.get_text ()
+ if not mode or mode == '':
+ mode = 'major'
+ fifths = int (fifths_elm.get_text ())
+ # TODO: Shall we try to convert the key-octave and the cancel, too?
+ return (fifths, mode)
+ else:
+ alterations = []
+ current_step = 0
+ for i in key.get_all_children ():
+ if isinstance (i, KeyStep):
+ current_step = i.get_text ().strip ()
+ elif isinstance (i, KeyAlter):
+ alterations.append ([current_step, interpret_alter_element (i)])
+ elif isinstance (i, KeyOctave):
+ nr = -1
+ if hasattr (i, 'number'):
+ nr = int (i.number)
+ if (nr > 0) and (nr <= len (alterations)):
+ # MusicXML Octave 4 is middle C -> shift to 0
+ alterations[nr-1].append (int (i.get_text ())-4)
+ else:
+ i.message (_ ("Key alteration octave given for a "
+ "non-existing alteration nr. %s, available numbers: %s!") % (nr, len(alterations)))
+ return alterations
+
+ def get_transposition (self):
+ return self.get_named_attribute ('transpose')
+
+class KeyAlter (Music_xml_node):
+ pass
+class KeyStep (Music_xml_node):
+ pass
+class KeyOctave (Music_xml_node):
+ pass
- fifths = int (key.get_maybe_exist_named_child ('fifths').get_text ())
- return (fifths, mode)
-
+
+class Barline (Measure_element):
+ pass
+class BarStyle (Music_xml_node):
+ pass
+class Partial (Measure_element):
+ def __init__ (self, partial):
+ Measure_element.__init__ (self)
+ self.partial = partial
class Note (Measure_element):
def __init__ (self):
Measure_element.__init__ (self)
self.instrument_name = ''
-
- def get_duration_log (self):
- ch = self.get_maybe_exist_typed_child (get_class (u'type'))
+ self._after_grace = False
+ def is_grace (self):
+ return self.get_maybe_exist_named_child (u'grace')
+ def is_after_grace (self):
+ if not self.is_grace():
+ return False;
+ gr = self.get_maybe_exist_typed_child (Grace)
+ return self._after_grace or hasattr (gr, 'steal-time-previous');
- if ch:
- log = ch.get_text ().strip()
- return {'eighth': 3,
- 'quarter': 2,
- 'half': 1,
- '16th': 4,
- '32nd': 5,
- 'breve': -1,
- 'long': -2,
- 'whole': 0}.get (log)
- else:
- return 0
+ def get_duration_log (self):
+ ch = self.get_maybe_exist_named_child (u'type')
+
+ if ch:
+ log = ch.get_text ().strip()
+ return musicxml_duration_to_log (log)
+ elif self.get_maybe_exist_named_child (u'grace'):
+ # FIXME: is it ok to default to eight note for grace notes?
+ return 3
+ else:
+ return None
+
+ def get_duration_info (self):
+ log = self.get_duration_log ()
+ if log != None:
+ dots = len (self.get_typed_children (Dot))
+ return (log, dots)
+ else:
+ return None
def get_factor (self):
- return 1
+ return 1
def get_pitches (self):
- return self.get_typed_children (get_class (u'pitch'))
+ return self.get_typed_children (get_class (u'pitch'))
class Part_list (Music_xml_node):
def __init__ (self):
if instrument_name:
return instrument_name
else:
- print "Opps, couldn't find instrument for ID=", id
+ ly.stderr_write (_ ("Unable to find instrument for ID=%s\n") % id)
return "Grand Piano"
+
+class Part_group (Music_xml_node):
+ pass
+class Score_part (Music_xml_node):
+ pass
class Measure (Music_xml_node):
+ def __init__ (self):
+ Music_xml_node.__init__ (self)
+ self.partial = 0
+ def is_implicit (self):
+ return hasattr (self, 'implicit') and self.implicit == 'yes'
def get_notes (self):
return self.get_typed_children (get_class (u'note'))
def continued (self):
text = self.get_text()
return (text == "begin") or (text == "middle")
+class Elision (Music_xml_node):
+ pass
+class Extend (Music_xml_node):
+ pass
class Text (Music_xml_node):
pass
else:
return -1
- def lyric_to_text (self):
- continued = False
- syllabic = self.get_maybe_exist_typed_child (Syllabic)
- if syllabic:
- continued = syllabic.continued ()
- text = self.get_maybe_exist_typed_child (Text)
-
- if text:
- text = text.get_text()
- if text == "-" and continued:
- return "--"
- elif text == "_" and continued:
- return "__"
- elif continued and text:
- return text + " --"
- elif continued:
- return "--"
- elif text:
- return text
- else:
- return ""
-
class Musicxml_voice:
def __init__ (self):
self._elements = []
and e.get_maybe_exist_typed_child (Staff)):
name = e.get_maybe_exist_typed_child (Staff).get_text ()
- if not self._start_staff:
+ if not self._start_staff and not e.get_maybe_exist_typed_child (Grace):
self._start_staff = name
self._staves[name] = True
return self._lyrics
+def graces_to_aftergraces (pending_graces):
+ for gr in pending_graces:
+ gr._when = gr._prev_when
+ gr._measure_position = gr._prev_measure_position
+ gr._after_grace = True
+
class Part (Music_xml_node):
def __init__ (self):
Music_xml_node.__init__ (self)
- self._voices = []
+ self._voices = {}
+ self._staff_attributes_dict = {}
def get_part_list (self):
n = self
n = n._parent
return n.get_named_child ('part-list')
-
+
def interpret (self):
"""Set durations and starting points."""
+ """The starting point of the very first note is 0!"""
part_list = self.get_part_list ()
measures = self.get_typed_children (Measure)
last_moment = Rational (-1)
last_measure_position = Rational (-1)
+ measure_position = Rational (0)
+ measure_start_moment = now
+ is_first_measure = True
+ previous_measure = None
+ # Graces at the end of a measure need to have their position set to the
+ # previous number!
+ pending_graces = []
for m in measures:
- measure_start_moment = now
- measure_position = Rational (0)
- for n in m.get_all_children ():
+ # implicit measures are used for artificial measures, e.g. when
+ # a repeat bar line splits a bar into two halves. In this case,
+ # don't reset the measure position to 0. They are also used for
+ # upbeats (initial value of 0 fits these, too).
+ # Also, don't reset the measure position at the end of the loop,
+ # but rather when starting the next measure (since only then do we
+ # know if the next measure is implicit and continues that measure)
+ if not m.is_implicit ():
+ # Warn about possibly overfull measures and reset the position
+ if attributes_object and previous_measure and previous_measure.partial == 0:
+ length = attributes_object.get_measure_length ()
+ new_now = measure_start_moment + length
+ if now <> new_now:
+ problem = 'incomplete'
+ if now > new_now:
+ problem = 'overfull'
+ ## only for verbose operation.
+ if problem <> 'incomplete' and previous_measure:
+ previous_measure.message ('%s measure? Expected: %s, Difference: %s' % (problem, now, new_now - now))
+ now = new_now
+ measure_start_moment = now
+ measure_position = Rational (0)
+
+ for n in m.get_all_children ():
+ # figured bass has a duration, but applies to the next note
+ # and should not change the current measure position!
+ if isinstance (n, FiguredBass):
+ n._divisions = factor.denominator ()
+ n._when = now
+ n._measure_position = measure_position
+ continue
+
+ if isinstance (n, Hash_text):
+ continue
dur = Rational (0)
if n.__class__ == Attributes:
if n.get_name() == 'backup':
dur = - dur
+ # reset all graces before the backup to after-graces:
+ graces_to_aftergraces (pending_graces)
+ pending_graces = []
if n.get_maybe_exist_typed_child (Grace):
dur = Rational (0)
rest._is_whole_measure = True
- if (dur > Rational (0)
+ if (dur > Rational (0)
and n.get_maybe_exist_typed_child (Chord)):
now = last_moment
measure_position = last_measure_position
-
- last_moment = now
- last_measure_position = measure_position
- n._when = now
+ n._when = now
n._measure_position = measure_position
- n._duration = dur
- now += dur
- measure_position += dur
+
+ # For all grace notes, store the previous note, in case need
+ # to turn the grace note into an after-grace later on!
+ if isinstance(n, Note) and n.is_grace ():
+ n._prev_when = last_moment
+ n._prev_measure_position = last_measure_position
+ # After-graces are placed at the same position as the previous note
+ if isinstance(n, Note) and n.is_after_grace ():
+ # TODO: We should do the same for grace notes at the end of
+ # a measure with no following note!!!
+ n._when = last_moment
+ n._measure_position = last_measure_position
+ elif isinstance(n, Note) and n.is_grace ():
+ pending_graces.append (n)
+ elif (dur > Rational (0)):
+ pending_graces = [];
+
+ n._duration = dur
+ if dur > Rational (0):
+ last_moment = now
+ last_measure_position = measure_position
+ now += dur
+ measure_position += dur
+ elif dur < Rational (0):
+ # backup element, reset measure position
+ now += dur
+ measure_position += dur
+ if measure_position < 0:
+ # backup went beyond the measure start => reset to 0
+ now -= measure_position
+ measure_position = 0
+ last_moment = now
+ last_measure_position = measure_position
if n._name == 'note':
instrument = n.get_maybe_exist_named_child ('instrument')
if instrument:
n.instrument_name = part_list.get_instrument (instrument.id)
- if attributes_object:
- length = attributes_object.get_measure_length ()
- new_now = measure_start_moment + length
-
- if now <> new_now:
- problem = 'incomplete'
- if now > new_now:
- problem = 'overfull'
-
- ## only for verbose operation.
- if problem <> 'incomplete':
- m.message ('%s measure? Expected: %s, Difference: %s' % (problem, now, new_now - now))
-
- now = new_now
+ # reset all graces at the end of the measure to after-graces:
+ graces_to_aftergraces (pending_graces)
+ pending_graces = []
+ # Incomplete first measures are not padded, but registered as partial
+ if is_first_measure:
+ is_first_measure = False
+ # upbeats are marked as implicit measures
+ if attributes_object and m.is_implicit ():
+ length = attributes_object.get_measure_length ()
+ measure_end = measure_start_moment + length
+ if measure_end <> now:
+ m.partial = now
+ previous_measure = m
+
+ # modify attributes so that only those applying to the given staff remain
+ def extract_attributes_for_staff (part, attr, staff):
+ attributes = copy.copy (attr)
+ attributes._children = [];
+ attributes._dict = attr._dict.copy ()
+ attributes._original_tag = attr
+ # copy only the relevant children over for the given staff
+ for c in attr._children:
+ if (not (hasattr (c, 'number') and (c.number != staff)) and
+ not (isinstance (c, Hash_text))):
+ attributes._children.append (c)
+ if not attributes._children:
+ return None
+ else:
+ return attributes
def extract_voices (part):
voices = {}
measures = part.get_typed_children (Measure)
elements = []
for m in measures:
+ if m.partial > 0:
+ elements.append (Partial (m.partial))
elements.extend (m.get_all_children ())
+ # make sure we know all voices already so that dynamics, clefs, etc.
+ # can be assigned to the correct voices
+ voice_to_staff_dict = {}
+ for n in elements:
+ voice_id = n.get_maybe_exist_named_child (u'voice')
+ vid = None
+ if voice_id:
+ vid = voice_id.get_text ()
+ elif isinstance (n, Note):
+ vid = "None"
+
+ staff_id = n.get_maybe_exist_named_child (u'staff')
+ sid = None
+ if staff_id:
+ sid = staff_id.get_text ()
+ else:
+ sid = "None"
+ if vid and not voices.has_key (vid):
+ voices[vid] = Musicxml_voice()
+ if vid and sid and not n.get_maybe_exist_typed_child (Grace):
+ if not voice_to_staff_dict.has_key (vid):
+ voice_to_staff_dict[vid] = sid
+ # invert the voice_to_staff_dict into a staff_to_voice_dict (since we
+ # need to assign staff-assigned objects like clefs, times, etc. to
+ # all the correct voices. This will never work entirely correct due
+ # to staff-switches, but that's the best we can do!
+ staff_to_voice_dict = {}
+ for (v,s) in voice_to_staff_dict.items ():
+ if not staff_to_voice_dict.has_key (s):
+ staff_to_voice_dict[s] = [v]
+ else:
+ staff_to_voice_dict[s].append (v)
+
start_attr = None
+ assign_to_next_note = []
+ id = None
for n in elements:
voice_id = n.get_maybe_exist_typed_child (get_class ('voice'))
-
- # TODO: If the first element of a voice is a dynamics entry,
- # then voice_id is not yet set! Thus it will currently be ignored
- if not (voice_id or isinstance (n, Attributes) or isinstance (n, Direction) ):
+ if voice_id:
+ id = voice_id.get_text ()
+ else:
+ id = "None"
+
+ # We don't need backup/forward any more, since we have already
+ # assigned the correct onset times.
+ # TODO: Let Grouping through. Also: link, print, bokmark sound
+ if not (isinstance (n, Note) or isinstance (n, Attributes) or
+ isinstance (n, Direction) or isinstance (n, Partial) or
+ isinstance (n, Barline) or isinstance (n, Harmony) or
+ isinstance (n, FiguredBass) or isinstance (n, Print)):
continue
if isinstance (n, Attributes) and not start_attr:
start_attr = n
continue
- if isinstance (n, Attributes) or isinstance (n, Direction):
- for v in voices.values ():
- v.add_element (n)
- continue
-
- id = voice_id.get_text ()
- if not voices.has_key (id):
- voices[id] = Musicxml_voice()
+ if isinstance (n, Attributes):
+ # assign these only to the voices they really belongs to!
+ for (s, vids) in staff_to_voice_dict.items ():
+ staff_attributes = part.extract_attributes_for_staff (n, s)
+ if staff_attributes:
+ for v in vids:
+ voices[v].add_element (staff_attributes)
+ continue
+
+ if isinstance (n, Partial) or isinstance (n, Barline) or isinstance (n, Print):
+ for v in voices.keys ():
+ voices[v].add_element (n)
+ continue
+
+ if isinstance (n, Direction):
+ staff_id = n.get_maybe_exist_named_child (u'staff')
+ if staff_id:
+ staff_id = staff_id.get_text ()
+ if staff_id:
+ dir_voices = staff_to_voice_dict.get (staff_id, voices.keys ())
+ else:
+ dir_voices = voices.keys ()
+ for v in dir_voices:
+ voices[v].add_element (n)
+ continue
+
+ if isinstance (n, Harmony) or isinstance (n, FiguredBass):
+ # store the harmony or figured bass element until we encounter
+ # the next note and assign it only to that one voice.
+ assign_to_next_note.append (n)
+ continue
+
+ if hasattr (n, 'print-object') and getattr (n, 'print-object') == "no":
+ #Skip this note.
+ pass
+ else:
+ for i in assign_to_next_note:
+ voices[id].add_element (i)
+ assign_to_next_note = []
+ voices[id].add_element (n)
- voices[id].add_element (n)
+ # Assign all remaining elements from assign_to_next_note to the voice
+ # of the previous note:
+ for i in assign_to_next_note:
+ voices[id].add_element (i)
+ assign_to_next_note = []
if start_attr:
- for (k,v) in voices.items ():
- v.insert (0, start_attr)
+ for (s, vids) in staff_to_voice_dict.items ():
+ staff_attributes = part.extract_attributes_for_staff (start_attr, s)
+ staff_attributes.read_self ()
+ part._staff_attributes_dict[s] = staff_attributes
+ for v in vids:
+ voices[v].insert (0, staff_attributes)
+ voices[v]._elements[0].read_self()
- part._voices = voices
+ part._voices = voices
def get_voices (self):
return self._voices
+ def get_staff_attributes (self):
+ return self._staff_attributes_dict
class Notations (Music_xml_node):
def get_tie (self):
else:
return None
- def get_tuplet (self):
- return self.get_maybe_exist_typed_child (Tuplet)
+ def get_tuplets (self):
+ return self.get_typed_children (Tuplet)
class Time_modification(Music_xml_node):
def get_fraction (self):
a = self.get_maybe_exist_named_child ('normal-notes')
return (int(a.get_text ()), int (b.get_text ()))
+ def get_normal_type (self):
+ tuplet_type = self.get_maybe_exist_named_child ('normal-type')
+ if tuplet_type:
+ dots = self.get_named_children ('normal-dot')
+ log = musicxml_duration_to_log (tuplet_type.get_text ().strip ())
+ return (log , len (dots))
+ else:
+ return None
+
+
class Accidental (Music_xml_node):
def __init__ (self):
Music_xml_node.__init__ (self)
self.editorial = False
self.cautionary = False
+class Music_xml_spanner (Music_xml_node):
+ def get_type (self):
+ if hasattr (self, 'type'):
+ return self.type
+ else:
+ return 0
+ def get_size (self):
+ if hasattr (self, 'size'):
+ return string.atoi (self.size)
+ else:
+ return 0
-class Tuplet(Music_xml_node):
+class Wedge (Music_xml_spanner):
pass
-class Slur (Music_xml_node):
+class Tuplet (Music_xml_spanner):
+ def duration_info_from_tuplet_note (self, tuplet_note):
+ tuplet_type = tuplet_note.get_maybe_exist_named_child ('tuplet-type')
+ if tuplet_type:
+ dots = tuplet_note.get_named_children ('tuplet-dot')
+ log = musicxml_duration_to_log (tuplet_type.get_text ().strip ())
+ return (log, len (dots))
+ else:
+ return None
+
+ # Return tuplet note type as (log, dots)
+ def get_normal_type (self):
+ tuplet = self.get_maybe_exist_named_child ('tuplet-normal')
+ if tuplet:
+ return self.duration_info_from_tuplet_note (tuplet)
+ else:
+ return None
+
+ def get_actual_type (self):
+ tuplet = self.get_maybe_exist_named_child ('tuplet-actual')
+ if tuplet:
+ return self.duration_info_from_tuplet_note (tuplet)
+ else:
+ return None
+
+ def get_tuplet_note_count (self, tuplet_note):
+ if tuplet_note:
+ tuplet_nr = tuplet_note.get_maybe_exist_named_child ('tuplet-number')
+ if tuplet_nr:
+ return int (tuplet_nr.get_text ())
+ return None
+ def get_normal_nr (self):
+ return self.get_tuplet_note_count (self.get_maybe_exist_named_child ('tuplet-normal'))
+ def get_actual_nr (self):
+ return self.get_tuplet_note_count (self.get_maybe_exist_named_child ('tuplet-actual'))
+
+class Bracket (Music_xml_spanner):
+ pass
+
+class Dashes (Music_xml_spanner):
+ pass
+
+class Slur (Music_xml_spanner):
def get_type (self):
return self.type
-class Beam (Music_xml_node):
+class Beam (Music_xml_spanner):
def get_type (self):
return self.get_text ()
def is_primary (self):
- return self.number == "1"
+ if hasattr (self, 'number'):
+ return self.number == "1"
+ else:
+ return True
+
+class Wavy_line (Music_xml_spanner):
+ pass
+class Pedal (Music_xml_spanner):
+ pass
+
+class Glissando (Music_xml_spanner):
+ pass
+
+class Slide (Music_xml_spanner):
+ pass
+
+class Octave_shift (Music_xml_spanner):
+ # default is 8 for the octave-shift!
+ def get_size (self):
+ if hasattr (self, 'size'):
+ return string.atoi (self.size)
+ else:
+ return 8
+
class Chord (Music_xml_node):
pass
class Dot (Music_xml_node):
pass
+# Rests in MusicXML are <note> blocks with a <rest> inside. This class is only
+# for the inner <rest> element, not the whole rest block.
class Rest (Music_xml_node):
def __init__ (self):
Music_xml_node.__init__ (self)
self._is_whole_measure = False
def is_whole_measure (self):
return self._is_whole_measure
+ def get_step (self):
+ ch = self.get_maybe_exist_typed_child (get_class (u'display-step'))
+ if ch:
+ return ch.get_text ().strip ()
+ else:
+ return None
+ def get_octave (self):
+ ch = self.get_maybe_exist_typed_child (get_class (u'display-octave'))
+ if ch:
+ oct = ch.get_text ().strip ()
+ return int (oct)
+ else:
+ return None
class Type (Music_xml_node):
pass
class DirType (Music_xml_node):
pass
+class Bend (Music_xml_node):
+ def bend_alter (self):
+ alter = self.get_maybe_exist_named_child ('bend-alter')
+ return interpret_alter_element (alter)
+
+class Words (Music_xml_node):
+ pass
+
+class Harmony (Music_xml_node):
+ pass
+
+class ChordPitch (Music_xml_node):
+ def step_class_name (self):
+ return u'root-step'
+ def alter_class_name (self):
+ return u'root-alter'
+ def get_step (self):
+ ch = self.get_unique_typed_child (get_class (self.step_class_name ()))
+ return ch.get_text ().strip ()
+ def get_alteration (self):
+ ch = self.get_maybe_exist_typed_child (get_class (self.alter_class_name ()))
+ return interpret_alter_element (ch)
+
+class Root (ChordPitch):
+ pass
+
+class Bass (ChordPitch):
+ def step_class_name (self):
+ return u'bass-step'
+ def alter_class_name (self):
+ return u'bass-alter'
+
+class ChordModification (Music_xml_node):
+ def get_type (self):
+ ch = self.get_maybe_exist_typed_child (get_class (u'degree-type'))
+ return {'add': 1, 'alter': 1, 'subtract': -1}.get (ch.get_text ().strip (), 0)
+ def get_value (self):
+ ch = self.get_maybe_exist_typed_child (get_class (u'degree-value'))
+ value = 0
+ if ch:
+ value = int (ch.get_text ().strip ())
+ return value
+ def get_alter (self):
+ ch = self.get_maybe_exist_typed_child (get_class (u'degree-alter'))
+ return interpret_alter_element (ch)
+
+
+class Frame (Music_xml_node):
+ def get_frets (self):
+ return self.get_named_child_value_number ('frame-frets', 4)
+ def get_strings (self):
+ return self.get_named_child_value_number ('frame-strings', 6)
+ def get_first_fret (self):
+ return self.get_named_child_value_number ('first-fret', 1)
+
+class Frame_Note (Music_xml_node):
+ def get_string (self):
+ return self.get_named_child_value_number ('string', 1)
+ def get_fret (self):
+ return self.get_named_child_value_number ('fret', 0)
+ def get_fingering (self):
+ return self.get_named_child_value_number ('fingering', -1)
+ def get_barre (self):
+ n = self.get_maybe_exist_named_child ('barre')
+ if n:
+ return getattr (n, 'type', '')
+ else:
+ return ''
+
+class FiguredBass (Music_xml_node):
+ pass
+
+class Beats (Music_xml_node):
+ pass
+
+class BeatType (Music_xml_node):
+ pass
+
+class BeatUnit (Music_xml_node):
+ pass
+
+class BeatUnitDot (Music_xml_node):
+ pass
+
+class PerMinute (Music_xml_node):
+ pass
+
+class Print (Music_xml_node):
+ pass
+
+
## need this, not all classes are instantiated
## for every input file. Only add those classes, that are either directly
## used by class name or extend Music_xml_node in some way!
class_dict = {
'#comment': Hash_comment,
+ '#text': Hash_text,
'accidental': Accidental,
'attributes': Attributes,
+ 'barline': Barline,
+ 'bar-style': BarStyle,
+ 'bass': Bass,
'beam' : Beam,
+ 'beats': Beats,
+ 'beat-type': BeatType,
+ 'beat-unit': BeatUnit,
+ 'beat-unit-dot': BeatUnitDot,
+ 'bend' : Bend,
+ 'bracket' : Bracket,
'chord': Chord,
+ 'dashes' : Dashes,
+ 'degree' : ChordModification,
'dot': Dot,
'direction': Direction,
'direction-type': DirType,
'duration': Duration,
+ 'elision': Elision,
+ 'extend': Extend,
+ 'frame': Frame,
+ 'frame-note': Frame_Note,
+ 'figured-bass': FiguredBass,
+ 'glissando': Glissando,
'grace': Grace,
+ 'harmony': Harmony,
'identification': Identification,
+ 'key-alter': KeyAlter,
+ 'key-octave': KeyOctave,
+ 'key-step': KeyStep,
'lyric': Lyric,
'measure': Measure,
'notations': Notations,
'note': Note,
+ 'octave-shift': Octave_shift,
'part': Part,
+ 'part-group': Part_group,
'part-list': Part_list,
+ 'pedal': Pedal,
+ 'per-minute': PerMinute,
'pitch': Pitch,
+ 'print': Print,
'rest': Rest,
+ 'root': Root,
+ 'score-part': Score_part,
+ 'slide': Slide,
'slur': Slur,
+ 'staff': Staff,
'syllabic': Syllabic,
'text': Text,
'time-modification': Time_modification,
+ 'tuplet': Tuplet,
'type': Type,
+ 'unpitched': Unpitched,
+ 'wavy-line': Wavy_line,
+ 'wedge': Wedge,
+ 'words': Words,
'work': Work,
}
def lxml_demarshal_node (node):
name = node.tag
- if name is None:
+ # Ignore comment nodes, which are also returned by the etree parser!
+ if name is None or node.__class__.__name__ == "_Comment":
return None
klass = get_class (name)
py_node = klass()
for c in py_node._children:
c._parent = py_node
- for (k,v) in node.items ():
+ for (k, v) in node.items ():
py_node.__dict__[k] = v
py_node._attribute_dict[k] = v
name = node.nodeName
klass = get_class (name)
- py_node = klass()
+ py_node = klass ()
py_node._name = name
py_node._children = [minidom_demarshal_node (cn) for cn in node.childNodes]
for c in py_node._children:
c._parent = py_node
if node.attributes:
- for (nm, value) in node.attributes.items():
+ for (nm, value) in node.attributes.items ():
py_node.__dict__[nm] = value
py_node._attribute_dict[nm] = value
if __name__ == '__main__':
- import lxml.etree
+ import lxml.etree
- tree = lxml.etree.parse ('beethoven.xml')
- mxl_tree = lxml_demarshal_node (tree.getroot ())
- ks = class_dict.keys()
- ks.sort()
- print '\n'.join (ks)
+ tree = lxml.etree.parse ('beethoven.xml')
+ mxl_tree = lxml_demarshal_node (tree.getroot ())
+ ks = class_dict.keys ()
+ ks.sort ()
+ print '\n'.join (ks)