def match_phones(phones, meter):
beats = segment_beats(phones)
lobeat, hibeat = argh(beats)
v, nvowels = 0, len(beats)
p, nphones = 0, len(phones)
for j, m in enumerate(meter):
if nphones <= p:
return meter[j+1:], None
if m == rhymed:
# NB we assume a rhymed may only appear once, at the end of meter
# XXX I think this is not quite right: e.g. 'intelligible'
# against meter (0,1,0,rhymed) produces rhyme 'gible' here,
# but it should fail:
return match_as_rhyme(phones[p:], lobeat, hibeat)
while not pronounce.is_vowel(phones[p]):
p += 1
if nphones <= p:
return None, None
if not match_beat(int(phones[p][-1]), m, lobeat, hibeat):
# XXX let's try a special case improvement until we can
# better it:
if beats == [1, 0, 0] and meter[:3] == (1, 0, 1):
return meter[3:], None
return None, None
p += 1
v += 1
if v == nvowels:
return meter[j+1:], None
return (), None # XXX shouldn't this be None, None?
def find_rime(phones):
assert isinstance(phones, tuple), "phones: %r" % phones
for i, ph in enumerate(phones):
if pronounce.is_vowel(ph):
return i
assert False
def segment_beats(phones):
return [int(phone[-1]) for phone in phones if pronounce.is_vowel(phone)]