48 lines
1.8 KiB
Python
48 lines
1.8 KiB
Python
|
import pynini
|
||
|
|
from fun_text_processing.text_normalization.en.graph_utils import DAMO_NOT_QUOTE, GraphFst
|
||
|
|
from fun_text_processing.text_normalization.es.graph_utils import (
|
||
|
|
add_cardinal_apocope_fem,
|
||
|
|
shift_cardinal_gender,
|
||
|
|
strip_cardinal_apocope,
|
||
|
|
)
|
||
|
|
from pynini.lib import pynutil
|
||
|
|
|
||
|
|
|
||
|
|
class CardinalFst(GraphFst):
|
||
|
|
"""
|
||
|
|
Finite state transducer for verbalizing cardinals
|
||
|
|
e.g. cardinal { integer: "dos" } -> "dos"
|
||
|
|
|
||
|
|
Args:
|
||
|
|
deterministic: if True will provide a single transduction option,
|
||
|
|
for False multiple transduction are generated (used for audio-based normalization)
|
||
|
|
"""
|
||
|
|
|
||
|
|
def __init__(self, deterministic: bool = True):
|
||
|
|
super().__init__(name="cardinal", kind="verbalize", deterministic=deterministic)
|
||
|
|
optional_sign = pynini.closure(pynini.cross('negative: "true" ', "menos "), 0, 1)
|
||
|
|
self.optional_sign = optional_sign
|
||
|
|
|
||
|
|
integer = pynini.closure(DAMO_NOT_QUOTE, 1)
|
||
|
|
self.integer = pynutil.delete(' "') + integer + pynutil.delete('"')
|
||
|
|
|
||
|
|
integer = pynutil.delete("integer:") + self.integer
|
||
|
|
|
||
|
|
graph_masc = optional_sign + integer
|
||
|
|
graph_fem = shift_cardinal_gender(graph_masc)
|
||
|
|
|
||
|
|
self.graph_masc = pynini.optimize(graph_masc)
|
||
|
|
self.graph_fem = pynini.optimize(graph_fem)
|
||
|
|
|
||
|
|
# Adding adjustment for fem gender (choice of gender will be random)
|
||
|
|
graph = graph_masc | graph_fem
|
||
|
|
|
||
|
|
if not deterministic:
|
||
|
|
# For alternate renderings when apocope is omitted (i.e. cardinal stands alone)
|
||
|
|
graph |= strip_cardinal_apocope(graph_masc)
|
||
|
|
# "una" will drop to "un" in unique contexts
|
||
|
|
graph |= add_cardinal_apocope_fem(graph_fem)
|
||
|
|
|
||
|
|
delete_tokens = self.delete_tokens(graph)
|
||
|
|
self.fst = delete_tokens.optimize()
|