shlex last token
Steven Taschuk
staschuk at telusplanet.net
Fri Jun 13 22:00:49 EDT 2003
Quoth Peter Maas:
> I am trying to use shlex.shlex and I don't no how to tell that the
> input stream is at EOF (other than using exceptions).
According to the shlex documentation:
get_token()
Return a token. If tokens have been stacked using push_token(),
pop a token off the stack. Otherwise, read one from the input
stream. If reading encounters an immediate end-of-file, an empty
string is returned.
This suggests, for example,
while True:
token = mylexer.get_token()
if not token:
break
dealwith(token)
or, more tidily,
for token in iter(mylexer.get_token, ''):
dealwith(token)
These work for me. Is your shlex not working this way?
--
Steven Taschuk staschuk at telusplanet.net
"Our analysis begins with two outrageous benchmarks."
-- "Implementation strategies for continuations", Clinger et al.
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