import pynini
|
from fun_text_processing.text_normalization.en.graph_utils import DAMO_NOT_QUOTE, GraphFst
|
from pynini.lib import pynutil
|
|
|
class TelephoneFst(GraphFst):
|
"""
|
Finite state transducer for verbalizing telephone
|
e.g. telephone { number_part: "8-913-983-56-01" } -> "8-913-983-56-01"
|
"""
|
|
def __init__(self):
|
super().__init__(name="telephone", kind="verbalize")
|
|
graph = (
|
pynutil.delete('number_part: "')
|
+ pynini.closure(DAMO_NOT_QUOTE, 1)
|
+ pynutil.delete('"')
|
)
|
delete_tokens = self.delete_tokens(graph)
|
self.fst = delete_tokens.optimize()
|
