ext/ply/test/lex_state_noerror.py

   1 # lex_state2.py
   2 #
   3 # Declaration of a state for which no rules are defined
   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     ]
  15
  16 comment = 1
  17 states = (('comment', 'exclusive'),)
  18
  19 t_PLUS = r'\+'
  20 t_MINUS = r'-'
  21 t_NUMBER = r'\d+'
  22
  23 # Comments
  24 def t_comment(t):
  25     r'/\*'
  26     t.lexer.begin('comment')
  27     print "Entering comment state"
  28
  29 def t_comment_body_part(t):
  30     r'(.|\n)*\*/'
  31     print "comment body", t
  32     t.lexer.begin('INITIAL')
  33
  34 def t_error(t):
  35     pass
  36
  37 import sys
  38
  39 lex.lex()
  40
  41