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annotate ply-3.8/test/lex_state3.py @ 12285:69f123e9b0a2 draft

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<b_jonas> STOP
author HackEso <hackeso@esolangs.org>
date Wed, 01 Jan 2020 09:35:37 +0000
parents 343ff337a19b
children
Ignore whitespace changes - Everywhere: Within whitespace: At end of lines:
rev   line source
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1 # lex_state3.py
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2 #
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3 # Bad state declaration
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4
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5 import sys
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6 if ".." not in sys.path: sys.path.insert(0,"..")
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7
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8 import ply.lex as lex
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9
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10 tokens = [
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11 "PLUS",
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12 "MINUS",
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13 "NUMBER",
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14 ]
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15
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16 comment = 1
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17 states = ((comment, 'inclusive'),
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18 ('example', 'exclusive'))
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19
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20 t_PLUS = r'\+'
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21 t_MINUS = r'-'
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22 t_NUMBER = r'\d+'
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23
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24 # Comments
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25 def t_comment(t):
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26 r'/\*'
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27 t.lexer.begin('comment')
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28 print("Entering comment state")
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29
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30 def t_comment_body_part(t):
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31 r'(.|\n)*\*/'
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32 print("comment body %s" % t)
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33 t.lexer.begin('INITIAL')
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34
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35 def t_error(t):
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36 pass
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39
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40 lex.lex()
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41
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42