1# lex_token2.py 2# 3# Tests for tokens of wrong type 4 5import sys 6if ".." not in sys.path: sys.path.insert(0,"..") 7 8import ply.lex as lex 9 10tokens = "PLUS MINUS NUMBER" 11 12t_PLUS = r'\+' 13t_MINUS = r'-' 14t_NUMBER = r'\d+' 15 16def t_error(t): 17 pass 18 19 20lex.lex() 21 22 23