1# lex_token5.py
2#
3# Return a bad token name
4
5import sys
6if ".." not in sys.path: sys.path.insert(0,"..")
7
8import ply.lex as lex
9
10tokens = [
11    "PLUS",
12    "MINUS",
13    "NUMBER",
14    ]
15
16t_PLUS = r'\+'
17t_MINUS = r'-'
18
19def t_NUMBER(t):
20    r'\d+'
21    t.type = "NUM"
22    return t
23
24def t_error(t):
25    pass
26
27lex.lex()
28lex.input("1234")
29t = lex.token()
30
31
32