def escape_ly_output_string (input_string):
return_string = input_string
- needs_quotes = not re.match (u"^[a-zA-ZäöüÜÄÖßñ]*$", return_string);
+ needs_quotes = not re.match (u"^[a-zA-ZäöüÜÄÖß,\.!:ñ]*$", 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):
- self._children = []
- self._data = None
- self._original = None
- self._name = 'xml_node'
- self._parent = None
+ self._children = []
+ self._data = None
+ self._original = None
+ self._name = 'xml_node'
+ self._parent = None
self._attribute_dict = {}
def get_parent (self):
return self._parent
def is_first (self):
- return self._parent.get_typed_children (self.__class__)[0] == self
+ return self._parent.get_typed_children (self.__class__)[0] == self
def original (self):
- return self._original
+ return self._original
def get_name (self):
- return self._name
+ return self._name
def get_text (self):
- if self._data:
- return self._data
+ if self._data:
+ return self._data
- if not self._children:
- return ''
+ if not self._children:
+ return ''
- return ''.join ([c.get_text () for c in self._children])
+ return ''.join ([c.get_text () for c in self._children])
def message (self, msg):
ly.stderr_write (msg+'\n')
p = self
while p:
- sys.stderr.write (' In: <%s %s>\n' % (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 []
return [c for c in self._children if isinstance(c, klass)]
def get_named_children (self, nm):
- return self.get_typed_children (get_class (nm))
+ return self.get_typed_children (get_class (nm))
def get_named_child (self, nm):
- return self.get_maybe_exist_named_child (nm)
+ return self.get_maybe_exist_named_child (nm)
def get_children (self, predicate):
- return [c for c in self._children if predicate(c)]
+ return [c for c in self._children if predicate(c)]
def get_all_children (self):
- return self._children
+ return self._children
def get_maybe_exist_named_child (self, name):
- return self.get_maybe_exist_typed_child (get_class (name))
+ return self.get_maybe_exist_typed_child (get_class (name))
def get_maybe_exist_typed_child (self, klass):
- cn = self.get_typed_children (klass)
- if len (cn)==0:
- return None
- elif len (cn) == 1:
- return cn[0]
- else:
- raise "More than 1 child", klass
+ cn = self.get_typed_children (klass)
+ if len (cn)==0:
+ return None
+ elif len (cn) == 1:
+ return cn[0]
+ else:
+ raise "More than 1 child", klass
def get_unique_typed_child (self, klass):
- cn = self.get_typed_children(klass)
- if len (cn) <> 1:
- sys.stderr.write (self.__dict__ + '\n')
- raise 'Child is not unique for', (klass, 'found', cn)
+ cn = self.get_typed_children(klass)
+ if len (cn) <> 1:
+ sys.stderr.write (self.__dict__ + '\n')
+ raise 'Child is not unique for', (klass, 'found', cn)
- return cn[0]
+ return cn[0]
def get_named_child_value_number (self, name, default):
n = self.get_maybe_exist_named_child (name)
class Music_xml_node (Xml_node):
def __init__ (self):
- Xml_node.__init__ (self)
- self.duration = Rational (0)
- self.start = Rational (0)
+ Xml_node.__init__ (self)
+ self.duration = Rational (0)
+ self.start = Rational (0)
class Work (Xml_node):
def get_work_information (self, tag):
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')
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):
def get_length (self):
- dur = int (self.get_text ()) * Rational (1,4)
- return dur
+ dur = int (self.get_text ()) * Rational (1,4)
+ return dur
class Hash_comment (Music_xml_node):
pass
class Hash_text (Music_xml_node):
- pass
+ def dump (self, indent = ''):
+ sys.stderr.write ('%s' % string.strip (self._data))
class Pitch (Music_xml_node):
def get_step (self):
- ch = self.get_unique_typed_child (get_class (u'step'))
- step = ch.get_text ().strip ()
- return step
+ ch = self.get_unique_typed_child (get_class (u'step'))
+ step = ch.get_text ().strip ()
+ return step
def get_octave (self):
- ch = self.get_unique_typed_child (get_class (u'octave'))
-
- step = ch.get_text ().strip ()
- return int (step)
+ ch = self.get_unique_typed_child (get_class (u'octave'))
+ 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
- if ch:
- alter = int (ch.get_text ().strip ())
- return alter
+ ch = self.get_maybe_exist_typed_child (get_class (u'alter'))
+ 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
+ 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'))
+ ch = self.get_unique_typed_child (get_class (u'display-octave'))
- if ch:
- octave = ch.get_text ().strip ()
- return int (octave)
- else:
- return None
+ if ch:
+ octave = ch.get_text ().strip ()
+ return int (octave)
+ else:
+ return None
class Measure_element (Music_xml_node):
def get_voice_id (self):
- voice_id = self.get_maybe_exist_named_child ('voice')
- if voice_id:
- return voice_id.get_text ()
- else:
- return None
+ voice_id = self.get_maybe_exist_named_child ('voice')
+ if voice_id:
+ return voice_id.get_text ()
+ else:
+ 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 ()]
- return cn[0] == self
+ # 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 = {}
+ 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)
+ self._dict.update (dict)
def read_self (self):
- for c in self.get_all_children ():
- self._dict[c.get_name()] = c
+ for c in self.get_all_children ():
+ self._dict[c.get_name()] = c
def get_named_attribute (self, name):
- return self._dict.get (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')
- if mxl:
- 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 ()))
- else:
+ 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)
- except KeyError:
- error (_ ("requested time signature, but time sig is unknown"))
+ 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)
# returns clef information in the form ("cleftype", position, octave-shift)
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
def __init__ (self):
Measure_element.__init__ (self)
self.instrument_name = ''
-
+ 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');
+
def get_duration_log (self):
ch = self.get_maybe_exist_named_child (u'type')
if ch:
log = ch.get_text ().strip()
- return {'256th': 8,
- '128th': 7,
- '64th': 6,
- '32nd': 5,
- '16th': 4,
- 'eighth': 3,
- 'quarter': 2,
- 'half': 1,
- 'whole': 0,
- 'breve': -1,
- 'longa': -2}.get (log, 0)
- elif self.get_maybe_exist_named_child (u'grace'):
- # FIXME: is it ok to default to eight note for grace notes?
- return 3
+ 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:
- self.message (_ ("Encountered note at %s with %s duration (no <type> element):") % (self.start, self.duration) )
- return 0
+ 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
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'))
+ return self.get_typed_children (get_class (u'note'))
class Syllabic (Music_xml_node):
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()
- # We need to convert soft hyphens to -, otherwise the ascii codec as well
- # as lilypond will barf on that character
- text = string.replace( text, u'\xad', '-' )
-
- if text == "-" and continued:
- return "--"
- elif text == "_" and continued:
- return "__"
- elif continued and text:
- return escape_ly_output_string (text) + " --"
- elif continued:
- return "--"
- elif text:
- return escape_ly_output_string (text)
- else:
- return ""
-
class Musicxml_voice:
def __init__ (self):
- self._elements = []
- self._staves = {}
- self._start_staff = None
+ self._elements = []
+ self._staves = {}
+ self._start_staff = None
self._lyrics = []
self._has_lyrics = False
def add_element (self, e):
- self._elements.append (e)
- if (isinstance (e, Note)
- and e.get_maybe_exist_typed_child (Staff)):
- name = e.get_maybe_exist_typed_child (Staff).get_text ()
+ self._elements.append (e)
+ if (isinstance (e, Note)
+ and e.get_maybe_exist_typed_child (Staff)):
+ name = e.get_maybe_exist_typed_child (Staff).get_text ()
- if not self._start_staff and not e.get_maybe_exist_typed_child (Grace):
- self._start_staff = name
- self._staves[name] = True
+ if not self._start_staff and not e.get_maybe_exist_typed_child (Grace):
+ self._start_staff = name
+ self._staves[name] = True
lyrics = e.get_typed_children (Lyric)
if not self._has_lyrics:
self._lyrics.append (nr)
def insert (self, idx, e):
- self._elements.insert (idx, e)
+ self._elements.insert (idx, e)
def get_lyrics_numbers (self):
if (len (self._lyrics) == 0) and self._has_lyrics:
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 = n._parent
return n.get_named_child ('part-list')
-
+
def interpret (self):
- """Set durations and starting points."""
+ """Set durations and starting points."""
"""The starting point of the very first note is 0!"""
part_list = self.get_part_list ()
- now = Rational (0)
- factor = Rational (1)
- attributes_dict = {}
+ now = Rational (0)
+ factor = Rational (1)
+ attributes_dict = {}
attributes_object = None
- measures = self.get_typed_children (Measure)
+ 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
- for m in measures:
+ # Graces at the end of a measure need to have their position set to the
+ # previous number!
+ pending_graces = []
+ for m in measures:
# 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
# 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)
+ dur = Rational (0)
if n.__class__ == Attributes:
- n.set_attributes_from_previous (attributes_dict)
- n.read_self ()
- attributes_dict = n._dict.copy ()
+ n.set_attributes_from_previous (attributes_dict)
+ n.read_self ()
+ attributes_dict = n._dict.copy ()
attributes_object = n
- factor = Rational (1,
- int (attributes_dict.get ('divisions').get_text ()))
+ factor = Rational (1,
+ int (attributes_dict.get ('divisions').get_text ()))
- if (n.get_maybe_exist_typed_child (Duration)):
- mxl_dur = n.get_maybe_exist_typed_child (Duration)
- dur = mxl_dur.get_length () * factor
+ if (n.get_maybe_exist_typed_child (Duration)):
+ mxl_dur = n.get_maybe_exist_typed_child (Duration)
+ dur = mxl_dur.get_length () * factor
- if n.get_name() == 'backup':
- dur = - dur
- if n.get_maybe_exist_typed_child (Grace):
- dur = Rational (0)
+ 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 = n.get_maybe_exist_typed_child (Rest)
- if (rest
+ if (rest
and attributes_object
and attributes_object.get_measure_length () == dur):
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
n._when = now
n._measure_position = measure_position
+
+ # 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
if instrument:
n.instrument_name = part_list.get_instrument (instrument.id)
+ # 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
# 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 = copy.copy (attr._children)
+ attributes._children = [];
attributes._dict = attr._dict.copy ()
- for c in attributes._children:
- if hasattr (c, 'number') and c.number != staff:
- attributes._children.remove (c)
- return attributes
+ 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:
+ 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 ())
+ 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 = {}
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
staff_to_voice_dict[s].append (v)
- start_attr = None
+ start_attr = None
assign_to_next_note = []
id = None
- for n in elements:
- voice_id = n.get_maybe_exist_typed_child (get_class ('voice'))
+ for n in elements:
+ voice_id = n.get_maybe_exist_typed_child (get_class ('voice'))
+ if voice_id:
+ id = voice_id.get_text ()
+ else:
+ id = "None"
- if not (voice_id or isinstance (n, Attributes) or
+ # 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) ):
- continue
+ isinstance (n, FiguredBass) or isinstance (n, Print)):
+ continue
- if isinstance (n, Attributes) and not start_attr:
- start_attr = n
- continue
+ if isinstance (n, Attributes) and not start_attr:
+ start_attr = n
+ continue
if isinstance (n, Attributes):
- # assign these only to the voices they really belongs to!
+ # assign these only to the voices they really belong to!
for (s, vids) in staff_to_voice_dict.items ():
staff_attributes = part.extract_attributes_for_staff (n, s)
- for v in vids:
- voices[v].add_element (staff_attributes)
+ if staff_attributes:
+ for v in vids:
+ voices[v].add_element (staff_attributes)
continue
- if isinstance (n, Partial) or isinstance (n, Barline):
+ if isinstance (n, Partial) or isinstance (n, Barline) or isinstance (n, Print):
for v in voices.keys ():
voices[v].add_element (n)
continue
assign_to_next_note.append (n)
continue
- id = voice_id.get_text ()
if hasattr (n, 'print-object') and getattr (n, 'print-object') == "no":
#Skip this note.
pass
voices[id].add_element (i)
assign_to_next_note = []
- if start_attr:
+ if 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._voices = voices
def get_voices (self):
- return self._voices
+ return self._voices
def get_staff_attributes (self):
return self._staff_attributes_dict
class Notations (Music_xml_node):
def get_tie (self):
- ts = self.get_named_children ('tied')
- starts = [t for t in ts if t.type == 'start']
- if starts:
- return starts[0]
- else:
- return None
+ ts = self.get_named_children ('tied')
+ starts = [t for t in ts if t.type == 'start']
+ if starts:
+ return starts[0]
+ else:
+ return None
def get_tuplets (self):
- return self.get_typed_children (Tuplet)
+ return self.get_typed_children (Tuplet)
class Time_modification(Music_xml_node):
def get_fraction (self):
- b = self.get_maybe_exist_named_child ('actual-notes')
- a = self.get_maybe_exist_named_child ('normal-notes')
- return (int(a.get_text ()), int (b.get_text ()))
+ b = self.get_maybe_exist_named_child ('actual-notes')
+ 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
+ Music_xml_node.__init__ (self)
+ self.editorial = False
+ self.cautionary = False
class Music_xml_spanner (Music_xml_node):
def get_type (self):
pass
class Tuplet (Music_xml_spanner):
- pass
+ 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 Slur (Music_xml_spanner):
def get_type (self):
- return self.type
+ return self.type
class Beam (Music_xml_spanner):
def get_type (self):
- return self.get_text ()
+ 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
def get_step (self):
ch = self.get_maybe_exist_typed_child (get_class (u'display-step'))
if ch:
- step = ch.get_text ().strip ()
- return step
+ 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:
- step = ch.get_text ().strip ()
- return int (step)
+ oct = ch.get_text ().strip ()
+ return int (oct)
else:
return None
class Bend (Music_xml_node):
def bend_alter (self):
alter = self.get_maybe_exist_named_child ('bend-alter')
- if alter:
- return alter.get_text()
- else:
- return 0
+ 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)
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)
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,
+ '#comment': Hash_comment,
'#text': Hash_text,
- 'accidental': Accidental,
- 'attributes': Attributes,
+ 'accidental': Accidental,
+ 'attributes': Attributes,
'barline': Barline,
'bar-style': BarStyle,
- 'beam' : Beam,
+ 'bass': Bass,
+ 'beam' : Beam,
+ 'beats': Beats,
+ 'beat-type': BeatType,
+ 'beat-unit': BeatUnit,
+ 'beat-unit-dot': BeatUnitDot,
'bend' : Bend,
'bracket' : Bracket,
- 'chord': Chord,
+ 'chord': Chord,
'dashes' : Dashes,
- 'dot': Dot,
- 'direction': Direction,
+ 'degree' : ChordModification,
+ 'dot': Dot,
+ 'direction': Direction,
'direction-type': DirType,
- 'duration': Duration,
+ 'duration': Duration,
+ 'elision': Elision,
+ 'extend': Extend,
'frame': Frame,
'frame-note': Frame_Note,
'figured-bass': FiguredBass,
'glissando': Glissando,
- 'grace': Grace,
+ 'grace': Grace,
'harmony': Harmony,
'identification': Identification,
+ 'key-alter': KeyAlter,
+ 'key-octave': KeyOctave,
+ 'key-step': KeyStep,
'lyric': Lyric,
- 'measure': Measure,
- 'notations': Notations,
- 'note': Note,
+ 'measure': Measure,
+ 'notations': Notations,
+ 'note': Note,
'octave-shift': Octave_shift,
- 'part': Part,
+ 'part': Part,
'part-group': Part_group,
- 'part-list': Part_list,
+ 'part-list': Part_list,
'pedal': Pedal,
- 'pitch': Pitch,
- 'rest': Rest,
- 'score-part': Score_part,
+ 'per-minute': PerMinute,
+ 'pitch': Pitch,
+ 'print': Print,
+ 'rest': Rest,
+ 'root': Root,
+ 'score-part': Score_part,
'slide': Slide,
- 'slur': Slur,
- 'staff': Staff,
+ 'slur': Slur,
+ 'staff': Staff,
'syllabic': Syllabic,
'text': Text,
- 'time-modification': Time_modification,
+ 'time-modification': Time_modification,
'tuplet': Tuplet,
- 'type': Type,
- 'unpitched': Unpitched,
+ 'type': Type,
+ 'unpitched': Unpitched,
'wavy-line': Wavy_line,
'wedge': Wedge,
'words': Words,
if classname:
return classname
else:
- class_name = name2class_name (name)
- klass = new.classobj (class_name, (Music_xml_node,) , {})
- class_dict[name] = klass
+ class_name = name2class_name (name)
+ klass = new.classobj (class_name, (Music_xml_node,) , {})
+ class_dict[name] = klass
return klass
def lxml_demarshal_node (node):
py_node._children = filter (lambda x: x, py_node._children)
for c in py_node._children:
- c._parent = py_node
+ 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
+ c._parent = py_node
if node.attributes:
- for (nm, value) in node.attributes.items():
- py_node.__dict__[nm] = value
+ for (nm, value) in node.attributes.items ():
+ py_node.__dict__[nm] = value
py_node._attribute_dict[nm] = value
py_node._data = None
if node.nodeType == node.TEXT_NODE and node.data:
- py_node._data = node.data
+ py_node._data = node.data
py_node._original = node
return py_node
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)