WordFst (verbalizers/word.py)

Finite state transducer that verbalizes plain tokens for Vietnamese text normalization.

# Source: https://github.com/modelscope/FunASR | License: MIT | Copyright 2025 FunASR
# Provided via justclaw.it.com; keep this notice with the code.
import pynini
from fun_text_processing.inverse_text_normalization.vi.graph_utils import (
    DAMO_CHAR,
    DAMO_SIGMA,
    GraphFst,
    delete_space,
)
from pynini.lib import pynutil


class WordFst(GraphFst):
    """
    Finite state transducer for verbalizing plain tokens
        e.g. tokens { name: "sleep" } -> sleep
    """

    def __init__(self):
        super().__init__(name="word", kind="verbalize")
        chars = pynini.closure(DAMO_CHAR - " ", 1)
        char = (
            pynutil.delete("name:")
            + delete_space
            + pynutil.delete('"')
            + chars
            + pynutil.delete('"')
        )
       

... (truncated -- full source via MCP)