import pynini
|
from fun_text_processing.text_normalization.en.graph_utils import (
|
DAMO_NOT_QUOTE,
|
GraphFst,
|
delete_extra_space,
|
delete_space,
|
insert_space,
|
)
|
from pynini.lib import pynutil
|
|
|
class DateFst(GraphFst):
|
"""
|
Finite state transducer for verbalizing date, e.g.
|
date { day: "1" month: "enero" preserve_order: true } -> 1 de enero
|
"""
|
|
def __init__(self):
|
super().__init__(name="date", kind="verbalize")
|
month = (
|
pynutil.delete("month:")
|
+ delete_space
|
+ pynutil.delete('"')
|
+ pynini.closure(DAMO_NOT_QUOTE, 1)
|
+ pynutil.delete('"')
|
)
|
day = (
|
pynutil.delete("day:")
|
+ delete_space
|
+ pynutil.delete('"')
|
+ pynini.closure(DAMO_NOT_QUOTE, 1)
|
+ pynutil.delete('"')
|
)
|
|
# day month
|
graph_dm = day + delete_extra_space + pynutil.insert("de") + insert_space + month
|
|
optional_preserve_order = pynini.closure(
|
pynutil.delete("preserve_order:") + delete_space + pynutil.delete("true") + delete_space
|
| pynutil.delete("field_order:")
|
+ delete_space
|
+ pynutil.delete('"')
|
+ DAMO_NOT_QUOTE
|
+ pynutil.delete('"')
|
+ delete_space
|
)
|
|
final_graph = graph_dm + delete_space + optional_preserve_order
|
|
delete_tokens = self.delete_tokens(final_graph)
|
self.fst = delete_tokens.optimize()
|
