from xml.dom import minidom, Node
-
class Xml_node:
- def __init__ (self):
- self._children = []
- self._data = None
- self._original = None
- self._name = 'xml_node'
- self._parent = None
-
- def is_first (self):
- return self._parent.get_typed_children (self.__class__)[0] == self
-
- def original (self):
- return self._original
- def get_name (self):
- return self._name
-
- def get_text (self):
- if self._data:
- return self._data
-
- if not self._children:
- return ''
-
- return ''.join ([c.get_text () for c in self._children])
-
- def get_typed_children (self, klass):
- return [c for c in self._children if isinstance(c, klass)]
-
- def get_named_children (self, nm):
- return self.get_typed_children (class_dict[nm])
-
- def get_named_child (self, nm):
- return self.get_maybe_exist_named_child (nm)
-
- def get_children (self, predicate):
- return [c for c in self._children if predicate(c)]
-
- def get_all_children (self):
- return self._children
-
- def get_maybe_exist_named_child (self, name):
- return self.get_maybe_exist_typed_child (class_dict[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
-
- def get_unique_typed_child (self, klass):
- cn = self.get_typed_children(klass)
- if len (cn) <> 1:
- print self.__dict__
- raise 'Child is not unique for', (klass, 'found', cn)
-
- return cn[0]
-
+ def __init__ (self):
+ self._children = []
+ self._data = None
+ self._original = None
+ self._name = 'xml_node'
+ self._parent = None
+
+ def is_first (self):
+ return self._parent.get_typed_children (self.__class__)[0] == self
+
+ def original (self):
+ return self._original
+ def get_name (self):
+ return self._name
+
+ def get_text (self):
+ if self._data:
+ return self._data
+
+ if not self._children:
+ return ''
+
+ return ''.join ([c.get_text () for c in self._children])
+
+ def get_typed_children (self, klass):
+ return [c for c in self._children if isinstance(c, klass)]
+
+ def get_named_children (self, nm):
+ return self.get_typed_children (class_dict[nm])
+
+ def get_named_child (self, nm):
+ return self.get_maybe_exist_named_child (nm)
+
+ def get_children (self, predicate):
+ return [c for c in self._children if predicate(c)]
+
+ def get_all_children (self):
+ return self._children
+
+ def get_maybe_exist_named_child (self, name):
+ return self.get_maybe_exist_typed_child (class_dict[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
+
+ def get_unique_typed_child (self, klass):
+ cn = self.get_typed_children(klass)
+ if len (cn) <> 1:
+ print self.__dict__
+ raise 'Child is not unique for', (klass, 'found', cn)
+
+ return cn[0]
+
class Music_xml_node (Xml_node):
- def __init__ (self):
- Xml_node.__init__ (self)
- self.duration = Rational (0)
- self.start = Rational (0)
-
+ def __init__ (self):
+ Xml_node.__init__ (self)
+ self.duration = Rational (0)
+ self.start = Rational (0)
+
class Duration (Music_xml_node):
- def get_length (self):
- dur = string.atoi (self.get_text ()) * Rational (1,4)
- return dur
-
+ def get_length (self):
+ dur = string.atoi (self.get_text ()) * Rational (1,4)
+ return dur
+
class Hash_comment (Music_xml_node):
- pass
-
+ pass
+
class Pitch (Music_xml_node):
- def get_step (self):
- ch = self.get_unique_typed_child (class_dict[u'step'])
- step = ch.get_text ().strip ()
- return step
- def get_octave (self):
- ch = self.get_unique_typed_child (class_dict[u'octave'])
-
- step = ch.get_text ().strip ()
- return string.atoi (step)
-
- def get_alteration (self):
- ch = self.get_maybe_exist_typed_child (class_dict[u'alter'])
- alter = 0
- if ch:
- alter = string.atoi (ch.get_text ().strip ())
- return alter
+ def get_step (self):
+ ch = self.get_unique_typed_child (class_dict[u'step'])
+ step = ch.get_text ().strip ()
+ return step
+ def get_octave (self):
+ ch = self.get_unique_typed_child (class_dict[u'octave'])
+
+ step = ch.get_text ().strip ()
+ return string.atoi (step)
+
+ def get_alteration (self):
+ ch = self.get_maybe_exist_typed_child (class_dict[u'alter'])
+ alter = 0
+ if ch:
+ alter = string.atoi (ch.get_text ().strip ())
+ return alter
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
-
- 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
-
+ 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
+
+ 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
+
class Attributes (Measure_element):
- def __init__ (self):
- Measure_element.__init__ (self)
- self._dict = {}
-
- def set_attributes_from_previous (self, dict):
- self._dict.update (dict)
- def read_self (self):
- for c in self.get_all_children ():
- self._dict[c.get_name()] = c
-
- def get_named_attribute (self, name):
- return self._dict[name]
-
+ def __init__ (self):
+ Measure_element.__init__ (self)
+ self._dict = {}
+
+ def set_attributes_from_previous (self, dict):
+ self._dict.update (dict)
+ def read_self (self):
+ for c in self.get_all_children ():
+ self._dict[c.get_name()] = c
+
+ def get_named_attribute (self, name):
+ return self._dict[name]
+
class Note (Measure_element):
- def get_duration_log (self):
- ch = self.get_maybe_exist_typed_child (class_dict[u'type'])
-
- if ch:
- log = ch.get_text ().strip()
- return {'eighth': 3,
- 'quarter': 2,
- 'half': 1,
- '16th': 4,
- '32nd': 5,
- 'breve': -1,
- 'long': -2,
- 'whole': 0} [log]
- else:
- return 0
-
- def get_factor (self):
- return 1
-
- def get_pitches (self):
- return self.get_typed_children (class_dict[u'pitch'])
+ def get_duration_log (self):
+ ch = self.get_maybe_exist_typed_child (class_dict[u'type'])
+
+ if ch:
+ log = ch.get_text ().strip()
+ return {'eighth': 3,
+ 'quarter': 2,
+ 'half': 1,
+ '16th': 4,
+ '32nd': 5,
+ 'breve': -1,
+ 'long': -2,
+ 'whole': 0} [log]
+ else:
+ return 0
+
+ def get_factor (self):
+ return 1
+
+ def get_pitches (self):
+ return self.get_typed_children (class_dict[u'pitch'])
class Part_list (Music_xml_node):
- pass
-
+ pass
+
class Measure(Music_xml_node):
- def get_notes (self):
- return self.get_typed_children (class_dict[u'note'])
+ def get_notes (self):
+ return self.get_typed_children (class_dict[u'note'])
class Musicxml_voice:
- def __init__ (self):
- self._elements = []
- self._staves = {}
- self._start_staff = None
-
- 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 ()
-
- if not self._start_staff:
- self._start_staff = name
- self._staves[name] = True
-
- def insert (self, idx, e):
- self._elements.insert (idx, e)
-
-
+ def __init__ (self):
+ self._elements = []
+ self._staves = {}
+ self._start_staff = None
+
+ 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 ()
+
+ if not self._start_staff:
+ self._start_staff = name
+ self._staves[name] = True
+
+ def insert (self, idx, e):
+ self._elements.insert (idx, e)
+
+
class Part (Music_xml_node):
- def __init__ (self):
- self._voices = []
-
- def interpret (self):
- """Set durations and starting points."""
-
- now = Rational (0)
- factor = Rational (1)
- attr_dict = {}
- measures = self.get_typed_children (Measure)
-
- for m in measures:
- for n in m.get_all_children ():
- dur = Rational (0)
-
- if n.__class__ == Attributes:
- n.set_attributes_from_previous (attr_dict)
- n.read_self ()
- attr_dict = n._dict.copy ()
-
- factor = Rational (1,
- string.atoi (attr_dict['divisions']
- .get_text ()))
- elif (n.get_maybe_exist_typed_child (Duration)
- and not n.get_maybe_exist_typed_child (Chord)):
- 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)
-
- n._when = now
- n._duration = dur
- now += dur
-
- def extract_voices (part):
- voices = {}
- measures = part.get_typed_children (Measure)
- elements = []
- for m in measures:
- elements.extend (m.get_all_children ())
-
- start_attr = None
- for n in elements:
- voice_id = n.get_maybe_exist_typed_child (class_dict['voice'])
-
- if not (voice_id or isinstance (n, Attributes)):
- continue
-
- if isinstance (n, Attributes) and not start_attr:
- start_attr = n
- continue
-
- if isinstance (n, Attributes):
- 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()
-
- voices[id].add_element (n)
-
- if start_attr:
- for (k,v) in voices.items ():
- v.insert (0, start_attr)
-
- part._voices = voices
-
- def get_voices (self):
- return self._voices
+ def __init__ (self):
+ self._voices = []
+
+ def interpret (self):
+ """Set durations and starting points."""
+
+ now = Rational (0)
+ factor = Rational (1)
+ attr_dict = {}
+ measures = self.get_typed_children (Measure)
+
+ for m in measures:
+ for n in m.get_all_children ():
+ dur = Rational (0)
+
+ if n.__class__ == Attributes:
+ n.set_attributes_from_previous (attr_dict)
+ n.read_self ()
+ attr_dict = n._dict.copy ()
+
+ factor = Rational (1,
+ string.atoi (attr_dict['divisions']
+ .get_text ()))
+ elif (n.get_maybe_exist_typed_child (Duration)
+ and not n.get_maybe_exist_typed_child (Chord)):
+ 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)
+
+ n._when = now
+ n._duration = dur
+ now += dur
+
+ def extract_voices (part):
+ voices = {}
+ measures = part.get_typed_children (Measure)
+ elements = []
+ for m in measures:
+ elements.extend (m.get_all_children ())
+
+ start_attr = None
+ for n in elements:
+ voice_id = n.get_maybe_exist_typed_child (class_dict['voice'])
+
+ if not (voice_id or isinstance (n, Attributes)):
+ continue
+
+ if isinstance (n, Attributes) and not start_attr:
+ start_attr = n
+ continue
+
+ if isinstance (n, Attributes):
+ 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()
+
+ voices[id].add_element (n)
+
+ if start_attr:
+ for (k,v) in voices.items ():
+ v.insert (0, start_attr)
+
+ part._voices = voices
+
+ def get_voices (self):
+ return self._voices
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
-
- def get_tuplet (self):
- return self.get_maybe_exist_typed_child (Tuplet)
-
+ 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
+
+ def get_tuplet (self):
+ return self.get_maybe_exist_typed_child (Tuplet)
+
class Time_modification(Music_xml_node):
- def get_fraction (self):
- b = self.get_maybe_exist_typed_child (class_dict['actual-notes'])
- a = self.get_maybe_exist_typed_child (class_dict['normal-notes'])
- return (string.atoi(a.get_text ()), string.atoi (b.get_text ()))
+ def get_fraction (self):
+ b = self.get_maybe_exist_typed_child (class_dict['actual-notes'])
+ a = self.get_maybe_exist_typed_child (class_dict['normal-notes'])
+ return (string.atoi(a.get_text ()), string.atoi (b.get_text ()))
class Accidental (Music_xml_node):
- def __init__ (self):
- Music_xml_node.__init__ (self)
- self.editorial = False
- self.cautionary = False
-
-
+ def __init__ (self):
+ Music_xml_node.__init__ (self)
+ self.editorial = False
+ self.cautionary = False
+
+
class Tuplet(Music_xml_node):
- pass
+ pass
class Slur (Music_xml_node):
- def get_type (self):
- return self.type
+ def get_type (self):
+ return self.type
class Beam (Music_xml_node):
- def get_type (self):
- return self.get_text ()
+ def get_type (self):
+ return self.get_text ()
class Chord (Music_xml_node):
- pass
+ pass
class Dot (Music_xml_node):
- pass
+ pass
class Alter (Music_xml_node):
- pass
+ pass
class Rest (Music_xml_node):
- pass
+ pass
class Mode (Music_xml_node):
- pass
+ pass
class Tied (Music_xml_node):
- pass
-
+ pass
+
class Type (Music_xml_node):
- pass
+ pass
class Grace (Music_xml_node):
- pass
+ pass
class Staff (Music_xml_node):
- pass
+ pass
class_dict = {
'#comment': Hash_comment,
}
def name2class_name (name):
- name = name.replace ('-', '_')
- name = name.replace ('#', 'hash_')
- name = name[0].upper() + name[1:].lower()
-
- return str (name)
-
+ name = name.replace ('-', '_')
+ name = name.replace ('#', 'hash_')
+ name = name[0].upper() + name[1:].lower()
+
+ return str (name)
+
def create_classes (names, dict):
- for n in names:
- if dict.has_key (n):
- continue
-
- class_name = name2class_name (n)
- klass = new.classobj (class_name, (Music_xml_node,) , {})
- dict[n] = klass
-
+ for n in names:
+ if dict.has_key (n):
+ continue
+
+ class_name = name2class_name (n)
+ klass = new.classobj (class_name, (Music_xml_node,) , {})
+ dict[n] = klass
+
def element_names (node, dict):
- dict[node.nodeName] = 1
- for cn in node.childNodes:
- element_names (cn, dict)
- return dict
+ dict[node.nodeName] = 1
+ for cn in node.childNodes:
+ element_names (cn, dict)
+ return dict
def demarshal_node (node):
- name = node.nodeName
- klass = class_dict[name]
- py_node = klass()
- py_node._name = name
- py_node._children = [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():
- py_node.__dict__[nm] = value
-
- py_node._data = None
- if node.nodeType == node.TEXT_NODE and node.data:
- py_node._data = node.data
-
- py_node._original = node
- return py_node
-
+ name = node.nodeName
+ klass = class_dict[name]
+ py_node = klass()
+ py_node._name = name
+ py_node._children = [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():
+ py_node.__dict__[nm] = value
+
+ py_node._data = None
+ if node.nodeType == node.TEXT_NODE and node.data:
+ py_node._data = node.data
+
+ py_node._original = node
+ return py_node
+
def strip_white_space (node):
- node._children = \
- [c for c in node._children
- if not (c._original.nodeType == Node.TEXT_NODE and
- re.match (r'^\s*$', c._data))]
-
- for c in node._children:
- strip_white_space (c)
+ node._children = \
+ [c for c in node._children
+ if not (c._original.nodeType == Node.TEXT_NODE and
+ re.match (r'^\s*$', c._data))]
+
+ for c in node._children:
+ strip_white_space (c)
def create_tree (name):
- doc = minidom.parse(name)
- node = doc.documentElement
- names = element_names (node, {}).keys()
- create_classes (names, class_dict)
-
- return demarshal_node (node)
-
+ doc = minidom.parse(name)
+ node = doc.documentElement
+ names = element_names (node, {}).keys()
+ create_classes (names, class_dict)
+
+ return demarshal_node (node)
+
def test_musicxml (tree):
- m = tree._children[-2]
- print m
-
+ m = tree._children[-2]
+ print m
+
def read_musicxml (name):
- tree = create_tree (name)
- strip_white_space (tree)
- return tree
+ tree = create_tree (name)
+ strip_white_space (tree)
+ return tree
if __name__ == '__main__':
- tree = read_musicxml ('BeetAnGeSample.xml')
- test_musicxml (tree)
+ tree = read_musicxml ('BeetAnGeSample.xml')
+ test_musicxml (tree)
projects / lilypond.git / commitdiff