29 lines
491 B
Python
29 lines
491 B
Python
grammar = """
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?start: item+
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item: embedding
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| WORD
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| function
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| QUOTED_STRING
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function: sum_function
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| neg_function
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| norm_function
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| diff_function
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sum_function: "sum(" arg ("|" arg)* ")"
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neg_function: "neg(" arg ")"
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norm_function: "norm(" arg ")"
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diff_function: "diff(" arg ("|" arg)* ")"
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arg: item+
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embedding: "embedding:" WORD
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WORD: /[A-Za-z0-9,_-]+/
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QUOTED_STRING: /"([^"\\\]*(\\\.[^"\\\]*)*)"|'([^'\\\]*(\\\.[^'\\\]*)*)'/
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%import common.WS
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%ignore WS
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"""
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