ext/ply/test/lex_re3.py

   1 # lex_token.py
   2 #
   3 # Regular expression rule matches empty string
   4
   5 import sys
   6 sys.path.insert(0,"..")
   7
   8 import ply.lex as lex
   9
  10 tokens = [
  11     "PLUS",
  12     "MINUS",
  13     "NUMBER",
  14     "POUND",
  15     ]
  16
  17 t_PLUS = r'\+'
  18 t_MINUS = r'-'
  19 t_NUMBER = r'(\d+)'
  20 t_POUND = r'#'
  21
  22 def t_error(t):
  23     pass
  24
  25 import sys
  26
  27 lex.lex()
  28
  29