PLY problem.

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The correct regular expression for a C-style comment in PLY seems to be:

# C-style comment

def t_comment(t):
    r'\/\*(.|\n)*?\*\/'
    t.lineno += t.value.count('\n')

Since no return value is passed, the lexer should ignore this. However,
when parsing the multiline comment


"""

 /* O
    K  */

"""


the lexer issues the following error:

...
(<function t_newline at 0x4054317c>, 'newline') 


None /* O
    K */
Traceback (most recent call last):
  File "<stdin>", line 1, in ?
  File "/usr/tmp/python-XYAtGu.py", line 148, in ?
    yacc.parse(s, lexer=lexer, debug=1)
  File "yacc.py", line 197, in parse
    lookahead = get_token()     # Get the next token
  File "lex.py", line 307, in realtoken
    # If token is processed by a function, call it
TypeError: unpack non-sequence
>>> 


Anybody a guess what's wrong?
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