forked from jtauber/greek-accentuation
/
accentuation.py
176 lines (144 loc) · 4.86 KB
/
accentuation.py
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from characters import add_diacritic
from characters import ACUTE, CIRCUMFLEX, SHORT, LONG
from syllabify import onset_nucleus_coda, syllabify, UNKNOWN, syllable_length
from syllabify import syllable_accent, ultima, penult, antepenult
def syllable_add_accent(s, a):
o, n, c = onset_nucleus_coda(s)
return o + add_diacritic(n, a) + c
def add_accent(s, accent_type):
pos, accent = accent_type
final = s[1 - pos:] if pos > 1 else [""]
return "".join(s[:-pos] + [syllable_add_accent(s[-pos], accent)] + final)
OXYTONE = 1, ACUTE
PERISPOMENON = 1, CIRCUMFLEX
PAROXYTONE = 2, ACUTE
PROPERISPOMENON = 2, CIRCUMFLEX
PROPAROXYTONE = 3, ACUTE
def display_accent_type(accent_type):
return {
OXYTONE: "oxytone",
PERISPOMENON: "perispomenon",
PAROXYTONE: "paroxytone",
PROPERISPOMENON: "properispomenon",
PROPAROXYTONE: "proparoxytone",
}[accent_type]
def make_oxytone(w):
return add_accent(syllabify(w), OXYTONE)
def make_paroxytone(w):
return add_accent(syllabify(w), PAROXYTONE)
def make_proparoxytone(w):
return add_accent(syllabify(w), PROPAROXYTONE)
def make_perispomenon(w):
s = syllabify(w)
if PERISPOMENON in possible_accentuations(s):
return add_accent(s, PERISPOMENON)
else:
return add_accent(s, OXYTONE)
def make_properispomenon(w):
s = syllabify(w)
if PROPERISPOMENON in possible_accentuations(s):
return add_accent(s, PROPERISPOMENON)
else:
return add_accent(s, PAROXYTONE)
def get_accent_type(w):
u = syllable_accent(ultima(w))
if u == ACUTE:
return OXYTONE
elif u == CIRCUMFLEX:
return PERISPOMENON
p = syllable_accent(penult(w))
if p == ACUTE:
return PAROXYTONE
elif p == CIRCUMFLEX:
return PROPERISPOMENON
a = syllable_accent(antepenult(w))
if a == ACUTE:
return PROPAROXYTONE
def possible_accentuations(
s, treat_final_AI_OI_short=True, default_short=False
):
ultima_length = syllable_length(s[-1], treat_final_AI_OI_short)
penult_length = syllable_length(s[-2], False) if len(s) >= 2 else None
if ultima_length == UNKNOWN and default_short:
ultima_length = SHORT
if penult_length == UNKNOWN and default_short:
penult_length = SHORT
if ultima_length == SHORT:
if len(s) >= 2:
if len(s) >= 3:
yield PROPAROXYTONE
if penult_length == SHORT:
yield PAROXYTONE
elif penult_length == LONG:
yield PROPERISPOMENON
elif penult_length == UNKNOWN:
# conditional on short penult
yield PAROXYTONE
# conditional on long penult
yield PROPERISPOMENON
yield OXYTONE
elif ultima_length == LONG:
if len(s) >= 2:
yield PAROXYTONE
yield OXYTONE
yield PERISPOMENON
elif ultima_length == UNKNOWN:
if len(s) >= 2:
if len(s) >= 3:
# conditional on short ultima
yield PROPAROXYTONE
if penult_length == SHORT:
yield PAROXYTONE
elif penult_length == LONG:
# conditional on short ultima
yield PROPERISPOMENON
elif penult_length == UNKNOWN:
# conditional on short penult
yield PAROXYTONE
# conditional on long penult
yield PROPERISPOMENON
# conditional on long ultima
yield PERISPOMENON
yield OXYTONE
def recessive(w, treat_final_AI_OI_short=True, default_short=False):
if "|" in w:
pre, w = w.split("|")
else:
pre = ""
s = syllabify(w)
return pre + add_accent(
s,
sorted(
possible_accentuations(s, treat_final_AI_OI_short, default_short),
reverse=True
)[0]
)
def on_penult(w, default_short=False):
if "|" in w:
pre, w = w.split("|")
else:
pre = ""
s = syllabify(w)
accentuations = list(
possible_accentuations(s, default_short=default_short)
)
if PROPERISPOMENON in accentuations:
return pre + add_accent(s, PROPERISPOMENON)
elif PAROXYTONE in accentuations:
return pre + add_accent(s, PAROXYTONE)
def persistent(w, lemma):
w = w.replace("|", "")
place, accent = get_accent_type(lemma)
s = syllabify(w)
possible = list(possible_accentuations(s))
place2 = len(s) - len(syllabify(lemma)) + place
accent_type = (place2, accent)
if accent_type not in possible:
if accent == ACUTE and (place2, CIRCUMFLEX) in possible:
accent_type = (place2, CIRCUMFLEX)
else:
for i in range(1, 4):
if (place2 - i, ACUTE) in possible:
accent_type = (place2 - i, ACUTE)
break
return add_accent(s, accent_type)