34 lines
1019 B
Python
34 lines
1019 B
Python
import argparse
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from .pgen import ParserGenerator
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def main():
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parser = argparse.ArgumentParser(description="Parser generator main program.")
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parser.add_argument(
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"grammar", type=str, help="The file with the grammar definition in EBNF format"
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)
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parser.add_argument("tokens", type=str, help="The file with the token definitions")
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parser.add_argument(
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"graminit_h",
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type=argparse.FileType("w"),
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help="The path to write the grammar's non-terminals as #defines",
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)
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parser.add_argument(
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"graminit_c",
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type=argparse.FileType("w"),
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help="The path to write the grammar as initialized data",
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)
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parser.add_argument("--verbose", "-v", action="count")
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args = parser.parse_args()
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p = ParserGenerator(args.grammar, args.tokens, verbose=args.verbose)
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grammar = p.make_grammar()
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grammar.produce_graminit_h(args.graminit_h.write)
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grammar.produce_graminit_c(args.graminit_c.write)
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if __name__ == "__main__":
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main()
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