lex_state_norule.py revision 4479
14479Sbinkertn@umich.edu# lex_state2.py 24479Sbinkertn@umich.edu# 34479Sbinkertn@umich.edu# Declaration of a state for which no rules are defined 44479Sbinkertn@umich.edu 54479Sbinkertn@umich.eduimport sys 64479Sbinkertn@umich.edusys.path.insert(0,"..") 74479Sbinkertn@umich.edu 84479Sbinkertn@umich.eduimport ply.lex as lex 94479Sbinkertn@umich.edu 104479Sbinkertn@umich.edutokens = [ 114479Sbinkertn@umich.edu "PLUS", 124479Sbinkertn@umich.edu "MINUS", 134479Sbinkertn@umich.edu "NUMBER", 144479Sbinkertn@umich.edu ] 154479Sbinkertn@umich.edu 164479Sbinkertn@umich.educomment = 1 174479Sbinkertn@umich.edustates = (('comment', 'exclusive'), 184479Sbinkertn@umich.edu ('example', 'exclusive')) 194479Sbinkertn@umich.edu 204479Sbinkertn@umich.edut_PLUS = r'\+' 214479Sbinkertn@umich.edut_MINUS = r'-' 224479Sbinkertn@umich.edut_NUMBER = r'\d+' 234479Sbinkertn@umich.edu 244479Sbinkertn@umich.edu# Comments 254479Sbinkertn@umich.edudef t_comment(t): 264479Sbinkertn@umich.edu r'/\*' 274479Sbinkertn@umich.edu t.lexer.begin('comment') 284479Sbinkertn@umich.edu print "Entering comment state" 294479Sbinkertn@umich.edu 304479Sbinkertn@umich.edudef t_comment_body_part(t): 314479Sbinkertn@umich.edu r'(.|\n)*\*/' 324479Sbinkertn@umich.edu print "comment body", t 334479Sbinkertn@umich.edu t.lexer.begin('INITIAL') 344479Sbinkertn@umich.edu 354479Sbinkertn@umich.edudef t_error(t): 364479Sbinkertn@umich.edu pass 374479Sbinkertn@umich.edu 384479Sbinkertn@umich.eduimport sys 394479Sbinkertn@umich.edu 404479Sbinkertn@umich.edulex.lex() 414479Sbinkertn@umich.edu 424479Sbinkertn@umich.edu 43