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git-svn-id: https://linkchecker.svn.sourceforge.net/svnroot/linkchecker/trunk/linkchecker@12 e7d03fd6-7b0d-0410-9947-9c21f3af8025
14 lines
369 B
Python
14 lines
369 B
Python
import re, PyLR
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def _intfunc(m):
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return int(m.group(0))
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class MathLex(PyLR.Lexer):
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def __init__(self):
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PyLR.Lexer.__init__(self)
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self.addpat(r"([1-9]([0-9]+)?)|0", "INT", _intfunc)
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self.addpat(r"\+", "PLUS")
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self.addpat(r"\*","TIMES")
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self.addpat(r"\(", "LPAR")
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self.addpat(r"\)", "RPAR")
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self.addpat(r"\s+", "WS", None, 1)
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