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27 lines
669 B
Python
27 lines
669 B
Python
9 years ago
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#!/usr/bin/python3
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# https://fdik.org/pyPEG/
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from __future__ import division, print_function
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from pypeg2 import *
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class Type(Keyword):
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grammar = Enum( K("int"), K("long") )
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class Parameter:
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grammar = attr("typing", Type), name()
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class Parameters(Namespace):
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grammar = optional(csl(Parameter))
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class Instruction(str):
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grammar = word, ";"
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block = "{", maybe_some(Instruction), "}"
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class Function(List):
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grammar = attr("typing", Type), name(), \
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"(", attr("parms", Parameters), ")", block
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f = parse("int f(int a, long b) { do_this; do_that; }", Function)
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print(f.name)
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print(f.typing)
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print(f.parms["b"].typing)
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print(f[0])
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print(f[1])
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