import pynini
|
from fun_text_processing.text_normalization.zh.graph_utils import (
|
FUN_NOT_QUOTE,
|
GraphFst,
|
delete_space,
|
)
|
from fun_text_processing.text_normalization.zh.utils import UNIT_1e01, get_abs_path
|
from pynini.lib import pynutil
|
|
|
class Date(GraphFst):
|
"""
|
tokens { date { year: "2002" month: "01" day: "28"} } -> 二零零二年一月二十八日
|
tokens { date { year: "2002" } } -> 二零零八年
|
"""
|
|
def __init__(self, deterministic: bool = True, lm: bool = False):
|
super().__init__(name="date", kind="verbalize", deterministic=deterministic)
|
date_type0 = pynutil.delete('year: "') + pynini.closure(FUN_NOT_QUOTE) + pynutil.delete('"')
|
graph_digit = pynini.string_file(get_abs_path("data/number/digit.tsv"))
|
graph_teen = pynini.string_file(get_abs_path("data/number/digit_teen.tsv"))
|
graph_zero = pynini.string_file(get_abs_path("data/number/zero.tsv"))
|
graph_no_zero = pynini.cross("0", "")
|
graph_year = pynini.closure(graph_digit | graph_zero, 2, 4)
|
graph_digit_no_zero = graph_digit | graph_no_zero
|
graph_2_digit_date = (graph_teen + pynutil.insert(UNIT_1e01) + graph_digit_no_zero) | (
|
graph_no_zero + graph_digit
|
)
|
|
date_type1 = (
|
pynutil.delete('year: "')
|
+ graph_year
|
+ pynutil.insert("年")
|
+ pynutil.delete('"')
|
+ delete_space
|
+ pynutil.delete('month: "')
|
+ graph_2_digit_date
|
+ pynutil.insert("月")
|
+ pynutil.delete('"')
|
+ delete_space
|
+ pynutil.delete('day: "')
|
+ graph_2_digit_date
|
+ pynutil.insert("日")
|
+ pynutil.delete('"')
|
)
|
|
date_type2 = (
|
pynutil.delete('year: "')
|
+ graph_year
|
+ pynutil.insert("年")
|
+ pynutil.delete('"')
|
+ delete_space
|
+ pynutil.delete('month: "')
|
+ graph_2_digit_date
|
+ pynutil.insert("月")
|
+ pynutil.delete('"')
|
)
|
|
graph = date_type0 | date_type1 | date_type2
|
|
self.fst = self.delete_tokens(graph).optimize()
|
