def parse_kern_item(item, note_system="base40", lineno=1, itemno=1):
tokens = kern_tokenizer(item, lineno)
if (not tokens['dur']) and ((not tokens['acciac']) or (not tokens['app'])):
kern_error("Duration can't be NULL.", lineno)
if (tokens['note'] and tokens['rest']):
kern_error("A note can't have a pitch and a rest.", lineno)
dur = int("".join(tokens['dur']))
dots = len(tokens['dot'])
duration = music.calculate_duration(dur, dots)
if tokens['note']:
notename = "".join(tokens['note'])
acc = "".join(tokens['acc'])
name = parse_kern_note(notename, acc)
note = Note(name, duration)
note.articulations = tokens['art']
note.beams = tokens['beam']
note.octave = parse_kern_octave(notename, acc, lineno)
note.code = music.string_to_code(notename[0], acc, note_system, note.octave)
note.system = note_system
note.type = "kern"
return note
elif tokens['rest']:
wholeNote = not bool(tokens['rest'] or len(tokens['rest']) >= 1)
return Rest(duration, wholeNote)
else:
kern_error("Kern data must have a note or rest.", lineno)
def test_calculate_duration_maxima_1():
assert music.calculate_duration("maxima", 1) == Fraction(12, 1)
def test_calculate_duration_longa_1():
assert music.calculate_duration("longa", 1) == Fraction(6, 1)
def test_calculate_duration_maxima_0():
assert music.calculate_duration("maxima", 0) == Fraction(8, 1)
def test_calculate_duration_brevis():
assert music.calculate_duration("brevis", 0) == Fraction(2, 1)
def test_calculate_duration_longa_0():
assert music.calculate_duration("longa", 0) == Fraction(4, 1)
def test_calculate_duration_0_1():
assert music.calculate_duration(0, 1) == Fraction(3, 1)
def test_calculate_duration_0_2():
assert music.calculate_duration(0, 2) == Fraction(7, 2)
def test_calculate_duration_0_0():
assert music.calculate_duration(0, 0) == Fraction(2, 1)
def test_calculate_duration_12_1():
assert music.calculate_duration(12, 1) == Fraction(1, 8)
def test_calculate_duration_4_2():
assert music.calculate_duration(4, 2) == Fraction(7, 16)
def test_calculate_duration_4_1():
assert music.calculate_duration(4, 1) == Fraction(3, 8)
def test_calculate_duration_16():
assert music.calculate_duration(16) == Fraction(1, 16)
