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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 Measure(GraphFst):
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'''
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1kg -> tokens { measure { cardinal { integer: "一" } units: "千克" } }
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'''
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def __init__(self, deterministic: bool = True, lm: bool = False):
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super().__init__(name="measure", kind="classify", deterministic=deterministic)
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units_en = pynini.string_file(get_abs_path("data/measure/units_en.tsv"))
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units_zh = pynini.string_file(get_abs_path("data/measure/units_zh.tsv"))
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graph = (
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pynutil.insert("cardinal { ")
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+ pynutil.insert("integer: \"")
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+ Cardinal().graph_cardinal
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+ pynutil.insert("\"")
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+ pynutil.insert(" }")
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+ insert_space
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+ pynutil.insert("units: \"")
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+ (units_en | units_zh)
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+ pynutil.insert("\"")
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)
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percent_graph = (
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pynutil.insert("decimal { ")
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+ pynutil.insert("integer_part: \"")
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+ Cardinal().graph_cardinal
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+ pynutil.delete("%")
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+ pynutil.insert("\"")
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+ pynutil.insert(" }")
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)
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graph |= percent_graph
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self.fst = self.add_tokens(graph).optimize()
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