def ParseSyll(s):
# Assign -1.0 to immed. syllable dependents of PrWd
if s.label() == 'Syll':
v = -1
else:
v = 0
return Mark('ParseSyll', v)
def StressFinal(t):
# Assign -1.0 to o and +1.0 to x in final position
s = t.right_sibling()
if s is None and t.label() in ['x', 'o']:
v = -1 if t.label() == 'o' else +1
else:
v = 0
return Mark('StressInitial', v)
def NonFinality(t):
# Assign -1.0 to x and +1.0 to o in final position
s = t.right_sibling()
if s is None and t.label() in ['x', 'o']:
v = -1 if t.label() == 'x' else +1
else:
v = 0
return Mark('NonFinality', v)
def AllFeetRight(s):
# Assign -1.0 to each foot that is immed. followed by
# an unfooted syllable
if is_foot(s) and s.right_sibling() is not None \
and s.right_sibling().label() == 'Syll':
v = -1
else:
v = 0
return Mark('AllFeetRight', v, subnode='upper')
def Trochaic(s):
if is_foot(s) and len(s) > 1:
if re.search('StressSyll', s[0].label()): # left-headed Ft
v = +1
else:
v = -1
else:
v = 0
return Mark('Trochaic', v, subnode='lower')
def NoMid(t):
# Non-low vowels should be [+high]
v = 0
x = t.olabel
if re.search('[iu]', x):
v = +1
elif re.search('[eo]', x):
v = -1
return Mark('NoMid', v, subnode='high')
def AlternateR(t):
# In the context x __ assign -1 to x and +1 to o,
# o __ assign -1 to o and -1 to x
s = t.left_sibling()
if s is not None and t.label() in ['x', 'o']:
v = -1 if t.label() == s.label() else +1
else:
v = 0
return Mark('AlternateR', v)
def Iambic(s):
if is_foot(s) and len(s) > 1:
if re.search('StressSyll', s[1].label()): # right-headed Ft
v = +1
else:
v = -1
else:
v = 0
return Mark('Iambic', v, subnode='lower')
def AlternateL(t):
# In the context __ x assign -1 to x and +1 to o
# __ o assign -1 to o and +1 to x
s = t.right_sibling()
if s is not None and t.label() in ['x', 'o']:
v = -1 if t.label() == s.label() else +1
else:
v = 0
return Mark('AlternateL', v)
def NoLapseR(t):
# Assign -1.0 to o and +1.0 to x in the context / o __
s = t.left_sibling()
if s is not None and s.label == 'o':
if t.label == 'o':
v = -1
elif t.label == 'x':
v = +1
return Mark('NoLapseR', v)
def FootBinarity(s):
# Assign -1.0 to subminimal/supermaximal Feet
if is_foot(s):
if len(s) == 2:
v = +1
else:
v = -1
else:
v = 0
return Mark('FootBinarity', v, subnode='lower')
def SpreadNasL(t):
# Segments immediately preceded by span members must be dependents
v = 0
x, succ = x, get_succ(t)
if re.search('[(|]', succ): # Followed by span edge
v = -1
elif re.search('[)+]', succ) \
and re.search('0[+(]', x): # Dependent
v = +1
return Mark('SpreadNasL', v, subnode='nasal')
def NoNasVoc(t):
# Vocoids must be [-nasal]
v = 0
x = t.olabel
if re.search('[GV]', x):
if re.search('[-]', x):
v = +1
else:
v = -1
return Mark('NoNasVoc', v, subnode='nasal')
def SyllStrucL(t):
v = 0
x, succ = t.olabel, get_succ(t)
if re.search('[TSNG]', succ) \
and re.search('[TSNG]', x): # No clusters
v = -1
elif re.search('[V]', succ) \
and re.search('[V]', x): # No hiatus
v = -1
return Mark('SyllStrucL', v)
def SyllStrucR(t):
v = 0
prec, x = get_prec(t), t.olabel
if re.search('[TSNG]', prec) \
and re.search('[TSNG]', x): # No clusters
v = -1
elif re.search('[V]', prec) \
and re.search('[V]', x): # No hiatus
v = -1
return Mark('SyllStrucR', v)
def NoNasObs(t):
# Obstruents must be [-nasal]
v = 0
x = t.olabel
if re.search('[TS]', x):
if re.search('[-]', x):
v = +1
else:
v = -1
return Mark('NoNasObs', v, subnode='nasal')
def SpreadNasR(t):
# Segments immediately following span members must be dependents
v = 0
prec, x = get_prec(t), t.olabel
if re.search('[)|]', prec): # Preceded by span edge
v = -1
elif re.search('[(+]', prec) \
and re.search('0[+)]', x): # Dependent
v = +1
return Mark('SpreadNasR', v, subnode='nasal')
def NasN(t):
# Nasals must be [+nasal] and span heads
v = 0
x = t.olabel
if re.search('[N]', x):
#if re.search('[-]', label): # N must be [+nasal]
if re.search('1', x): # N must be head of +nasal span
v = +1
else:
v = -1
return Mark('NasN', v, subnode='nasal')
def Lower(t):
# Vowels should be [-high] when adjacent to uvulars
v = 0
prec, x, succ = \
get_prec(t), t.olabel, get_succ(t)
if re.search('[q]', prec) or re.search('[q]', succ):
if re.search('[eoa]', x):
v = +1
elif re.search('[iu]', x):
v = -1
return Mark('Lower', v, subnode='high')
def MainFootRight(s):
# Assign -1.0 to main-stress foot that is not rightmost foot
v = 0
if is_foot(s):
t = s
while (t.right_sibling() is not None):
t = t.right_sibling()
if is_foot(t):
v = -1
break
return Mark('MainFootRight', v, subnode='upper')
def SyllStruc(t):
v = 0
prec, x, succ = get_prec(t), t.olabel, get_succ(t)
if (prec == fst_config.bos or prec in consonants) \
and (succ == fst_config.eos or succ in consonants) \
and x in consonants: # No #CC, CC#, #C#, CCC
v = -1
elif (prec == fst_config.bos or prec in vowels) \
and x in vowels: # No <V, VV
v = -1
return Mark('SyllStruc', v)
def NoClashR(t):
# Assign -1.0 to x and +1.0 to o in the context / x __
s = t.left_sibling()
if s is not None and s.label() == 'x':
if t.label == 'x':
v = -1
elif t.label == 'o':
v = +1
else:
v = 0
return Mark('NoClashR', v)
def NoLapseL(t):
# Assign -1.0 to o and +1.0 to x in the context / __ o
s = t.right_sibling()
if s is not None and s.label() == 'o':
if t.label == 'o':
v = -1
elif t.label == 'x':
v = +1
else:
v = 0
return Mark('NoLapseL', v)