27 lines
296 B
Python
27 lines
296 B
Python
# lex_re2.py
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#
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# Regular expression rule matches empty string
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import sys
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if ".." not in sys.path: sys.path.insert(0,"..")
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import ply.lex as lex
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tokens = [
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"PLUS",
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"MINUS",
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"NUMBER",
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]
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t_PLUS = r'\+?'
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t_MINUS = r'-'
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t_NUMBER = r'(\d+)'
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def t_error(t):
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pass
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lex.lex()
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