def parseTokens(mh, dst, p, useMeasures):
'''
parses all the tokens in a measure or part.
'''
# in case need to transpose due to clef indication
from music21 import abcFormat
postTransposition = 0
clefSet = False
for t in mh.tokens:
if isinstance(t, abcFormat.ABCMetadata):
if t.isMeter():
ts = t.getTimeSignatureObject()
if ts is not None: # can be None
# should append at the right position
if useMeasures: # assume at start of measures
dst.timeSignature = ts
else:
dst.coreAppend(ts)
elif t.isKey():
ks = t.getKeySignatureObject()
if useMeasures: # assume at start of measures
dst.keySignature = ks
else:
dst.coreAppend(ks)
# check for clef information sometimes stored in key
clefObj, transposition = t.getClefObject()
if clefObj is not None:
clefSet = False
#environLocal.printDebug(['found clef in key token:', t,
# clefObj, transposition])
if useMeasures: # assume at start of measures
dst.clef = clefObj
else:
dst.coreAppend(clefObj)
postTransposition = transposition
elif t.isTempo():
mmObj = t.getMetronomeMarkObject()
dst.coreAppend(mmObj)
# as ABCChord is subclass of ABCNote, handle first
elif isinstance(t, abcFormat.ABCChord):
# may have more than notes?
pitchNameList = []
accStatusList = [] # accidental display status list
for tSub in t.subTokens:
# notes are contained as subtokens are already parsed
if isinstance(tSub, abcFormat.ABCNote):
pitchNameList.append(tSub.pitchName)
accStatusList.append(tSub.accidentalDisplayStatus)
c = chord.Chord(pitchNameList)
c.duration.quarterLength = t.quarterLength
if t.activeTuplet:
thisTuplet = copy.deepcopy(t.activeTuplet)
if thisTuplet.durationNormal is None:
thisTuplet.setDurationType(c.duration.type,
c.duration.dots)
c.duration.appendTuplet(thisTuplet)
# adjust accidental display for each contained pitch
for pIndex in range(len(c.pitches)):
if c.pitches[pIndex].accidental is None:
continue
c.pitches[pIndex].accidental.displayStatus = accStatusList[
pIndex]
dst.coreAppend(c)
#ql += t.quarterLength
elif isinstance(t, abcFormat.ABCNote):
# add the attached chord symbol
if t.chordSymbols:
cs_name = t.chordSymbols[0]
cs_name = re.sub('["]', '', cs_name).lstrip().rstrip()
cs_name = re.sub('[()]', '', cs_name)
cs_name = common.cleanedFlatNotation(cs_name)
try:
if cs_name in ('NC', 'N.C.', 'No Chord', 'None'):
cs = harmony.NoChord(cs_name)
else:
cs = harmony.ChordSymbol(cs_name)
dst.coreAppend(cs, setActiveSite=False)
dst.coreElementsChanged()
except ValueError:
pass # Exclude malformed chord
if t.isRest:
n = note.Rest()
else:
n = note.Note(t.pitchName)
if n.pitch.accidental is not None:
n.pitch.accidental.displayStatus = t.accidentalDisplayStatus
n.duration.quarterLength = t.quarterLength
if t.activeTuplet:
thisTuplet = copy.deepcopy(t.activeTuplet)
if thisTuplet.durationNormal is None:
thisTuplet.setDurationType(n.duration.type,
n.duration.dots)
n.duration.appendTuplet(thisTuplet)
# start or end a tie at note n
if t.tie is not None:
if t.tie in ('start', 'continue'):
n.tie = tie.Tie(t.tie)
n.tie.style = 'normal'
elif t.tie == 'stop':
n.tie = tie.Tie(t.tie)
### Was: Extremely Slow for large Opus files... why?
### Answer: some pieces didn't close all their spanners, so
### everything was in a Slur/Diminuendo, etc.
for span in t.applicableSpanners:
span.addSpannedElements(n)
if t.inGrace:
n = n.getGrace()
n.articulations = []
while any(t.artic):
tmp = t.artic.pop()
if tmp == "staccato":
n.articulations.append(articulations.Staccato())
elif tmp == "upbow":
n.articulations.append(articulations.UpBow())
elif tmp == "downbow":
n.articulations.append(articulations.DownBow())
elif tmp == "accent":
n.articulations.append(articulations.Accent())
elif tmp == "strongaccent":
n.articulations.append(articulations.StrongAccent())
elif tmp == "tenuto":
n.articulations.append(articulations.Tenuto())
dst.coreAppend(n, setActiveSite=False)
elif isinstance(t, abcFormat.ABCSlurStart):
p.coreAppend(t.slurObj)
elif isinstance(t, abcFormat.ABCCrescStart):
p.coreAppend(t.crescObj)
elif isinstance(t, abcFormat.ABCDimStart):
p.coreAppend(t.dimObj)
dst.coreElementsChanged()
return postTransposition, clefSet
def parseTokens(mh, dst, p, useMeasures):
'''
parses all the tokens in a measure or part.
'''
# in case need to transpose due to clef indication
from music21 import abcFormat
postTransposition = 0
clefSet = False
for t in mh.tokens:
if isinstance(t, abcFormat.ABCMetadata):
if t.isMeter():
ts = t.getTimeSignatureObject()
if ts is not None: # can be None
# should append at the right position
if useMeasures: # assume at start of measures
dst.timeSignature = ts
else:
dst.coreAppend(ts)
elif t.isKey():
ks = t.getKeySignatureObject()
if useMeasures: # assume at start of measures
dst.keySignature = ks
else:
dst.coreAppend(ks)
# check for clef information sometimes stored in key
clefObj, transposition = t.getClefObject()
if clefObj is not None:
clefSet = False
# environLocal.printDebug(['found clef in key token:', t,
# clefObj, transposition])
if useMeasures: # assume at start of measures
dst.clef = clefObj
else:
dst.coreAppend(clefObj)
postTransposition = transposition
elif t.isTempo():
mmObj = t.getMetronomeMarkObject()
dst.coreAppend(mmObj)
# as ABCChord is subclass of ABCNote, handle first
elif isinstance(t, abcFormat.ABCChord):
# may have more than notes?
pitchNameList = []
accStatusList = [] # accidental display status list
for tSub in t.subTokens:
# notes are contained as subtokens are already parsed
if isinstance(tSub, abcFormat.ABCNote):
pitchNameList.append(tSub.pitchName)
accStatusList.append(tSub.accidentalDisplayStatus)
c = chord.Chord(pitchNameList)
c.duration.quarterLength = t.quarterLength
if t.activeTuplet:
thisTuplet = copy.deepcopy(t.activeTuplet)
if thisTuplet.durationNormal is None:
thisTuplet.setDurationType(c.duration.type, c.duration.dots)
c.duration.appendTuplet(thisTuplet)
# adjust accidental display for each contained pitch
for pIndex in range(len(c.pitches)):
if c.pitches[pIndex].accidental is None:
continue
c.pitches[pIndex].accidental.displayStatus = accStatusList[pIndex]
dst.coreAppend(c)
#ql += t.quarterLength
elif isinstance(t, abcFormat.ABCNote):
# add the attached chord symbol
if t.chordSymbols:
cs_name = t.chordSymbols[0]
cs_name = re.sub('["]','', cs_name).lstrip().rstrip()
cs_name = re.sub('[()]', '', cs_name)
cs_name = common.cleanedFlatNotation(cs_name)
try:
if cs_name in ('NC', 'N.C.', 'No Chord', 'None'):
cs = harmony.NoChord(cs_name)
else:
cs = harmony.ChordSymbol(cs_name)
dst.coreAppend(cs, setActiveSite=False)
dst.coreElementsChanged()
except ValueError:
pass # Exclude malformed chord
if t.isRest:
n = note.Rest()
else:
n = note.Note(t.pitchName)
if n.pitch.accidental is not None:
n.pitch.accidental.displayStatus = t.accidentalDisplayStatus
n.duration.quarterLength = t.quarterLength
if t.activeTuplet:
thisTuplet = copy.deepcopy(t.activeTuplet)
if thisTuplet.durationNormal is None:
thisTuplet.setDurationType(n.duration.type, n.duration.dots)
n.duration.appendTuplet(thisTuplet)
# start or end a tie at note n
if t.tie is not None:
if t.tie in ('start', 'continue'):
n.tie = tie.Tie(t.tie)
n.tie.style = 'normal'
elif t.tie == 'stop':
n.tie = tie.Tie(t.tie)
### Was: Extremely Slow for large Opus files... why?
### Answer: some pieces didn't close all their spanners, so
### everything was in a Slur/Diminuendo, etc.
for span in t.applicableSpanners:
span.addSpannedElements(n)
if t.inGrace:
n = n.getGrace()
n.articulations = []
while any(t.artic):
tmp = t.artic.pop()
if tmp == "staccato":
n.articulations.append(articulations.Staccato())
elif tmp == "upbow":
n.articulations.append(articulations.UpBow())
elif tmp == "downbow":
n.articulations.append(articulations.DownBow())
elif tmp == "accent":
n.articulations.append(articulations.Accent())
elif tmp == "strongaccent":
n.articulations.append(articulations.StrongAccent())
elif tmp == "tenuto":
n.articulations.append(articulations.Tenuto())
dst.coreAppend(n, setActiveSite=False)
elif isinstance(t, abcFormat.ABCSlurStart):
p.coreAppend(t.slurObj)
elif isinstance(t, abcFormat.ABCCrescStart):
p.coreAppend(t.crescObj)
elif isinstance(t, abcFormat.ABCDimStart):
p.coreAppend(t.dimObj)
dst.coreElementsChanged()
return postTransposition, clefSet