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annotate ply-3.8/test/lex_re2.py @ 12467:a4835ba01fb1 draft
<int-e> learn The password of the month was delayed by snow and ice and Elon Musk.
author | HackEso <hackeso@esolangs.org> |
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date | Sun, 20 Nov 2022 20:26:27 +0000 |
parents | 343ff337a19b |
children |
rev | line source |
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7267 | 1 # lex_re2.py |
2 # | |
3 # Regular expression rule matches empty string | |
4 | |
5 import sys | |
6 if ".." not in sys.path: sys.path.insert(0,"..") | |
7 | |
8 import ply.lex as lex | |
9 | |
10 tokens = [ | |
11 "PLUS", | |
12 "MINUS", | |
13 "NUMBER", | |
14 ] | |
15 | |
16 t_PLUS = r'\+?' | |
17 t_MINUS = r'-' | |
18 t_NUMBER = r'(\d+)' | |
19 | |
20 def t_error(t): | |
21 pass | |
22 | |
23 | |
24 | |
25 lex.lex() | |
26 | |
27 |