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import pynini
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from fun_text_processing.text_normalization.zh.graph_utils import GraphFst, insert_space
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from fun_text_processing.text_normalization.zh.taggers.cardinal import Cardinal
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from fun_text_processing.text_normalization.zh.utils import get_abs_path
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from pynini.lib import pynutil
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class Money(GraphFst):
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'''
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￥1.25 -> tokens { money { fractional_part: "元" integer_part: "一点五" } }
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'''
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def __init__(self, deterministic: bool = True, lm: bool = False):
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super().__init__(name="money", kind="classify", deterministic=deterministic)
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currency_code = pynini.string_file(get_abs_path("data/money/currency_code.tsv"))
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currency_symbol = pynini.string_file(get_abs_path("data/money/currency_symbol.tsv"))
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graph = (
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pynutil.insert("fractional_part: \"")
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+ (currency_code | currency_symbol)
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+ pynutil.insert("\"")
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+ insert_space
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+ pynutil.insert("integer_part: \"")
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+ Cardinal().graph_cardinal
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+ pynutil.insert("\"")
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)
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self.fst = self.add_tokens(graph).optimize()
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