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author HackBot
date Wed, 23 Mar 2016 02:40:16 +0000
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7266:61a39a120dee 7267:343ff337a19b
1 # -----------------------------------------------------------------------------
2 # yacc_rr_unused.py
3 #
4 # A grammar with reduce/reduce conflicts and a rule that never
5 # gets reduced.
6 # -----------------------------------------------------------------------------
7 import sys
8
9 if ".." not in sys.path: sys.path.insert(0,"..")
10 import ply.yacc as yacc
11
12 tokens = ('A', 'B', 'C')
13
14 def p_grammar(p):
15 '''
16 rule1 : rule2 B
17 | rule2 C
18
19 rule2 : rule3 B
20 | rule4
21 | rule5
22
23 rule3 : A
24
25 rule4 : A
26
27 rule5 : A
28 '''
29
30 yacc.yacc()