16498Snate@binkert.org# ----------------------------------------------------------------------------- 26498Snate@binkert.org# yacc_rr_unused.py 36498Snate@binkert.org# 46498Snate@binkert.org# A grammar with reduce/reduce conflicts and a rule that never 56498Snate@binkert.org# gets reduced. 66498Snate@binkert.org# ----------------------------------------------------------------------------- 76498Snate@binkert.orgimport sys 86498Snate@binkert.org 96498Snate@binkert.orgif ".." not in sys.path: sys.path.insert(0,"..") 106498Snate@binkert.orgimport ply.yacc as yacc 116498Snate@binkert.org 126498Snate@binkert.orgtokens = ('A', 'B', 'C') 136498Snate@binkert.org 146498Snate@binkert.orgdef p_grammar(p): 156498Snate@binkert.org ''' 166498Snate@binkert.org rule1 : rule2 B 176498Snate@binkert.org | rule2 C 186498Snate@binkert.org 196498Snate@binkert.org rule2 : rule3 B 206498Snate@binkert.org | rule4 216498Snate@binkert.org | rule5 226498Snate@binkert.org 236498Snate@binkert.org rule3 : A 246498Snate@binkert.org 256498Snate@binkert.org rule4 : A 266498Snate@binkert.org 276498Snate@binkert.org rule5 : A 286498Snate@binkert.org ''' 296498Snate@binkert.org 306498Snate@binkert.orgyacc.yacc() 31