On 7/5/2010 3:19 PM, John Nagle wrote:
I'm working on street address parsing again, and I'm trying to deal
with some of the harder cases.
The approach below works for the cases given. The "Or" operator ("^")
supports backtracking, but "Optional()" apparently does not.
direction = Combine(MatchFirst(map(CaselessKeyword, directionals)) +
Optional(".").suppress())
streetNameOnly = Combine(OneOrMore(Word(alphanums)), adjacent=False,
joinString=" ").setResultsName("streetname")
streetNameParser =
((direction.setResultsName("predirectional") + streetNameOnly)
^ streetNameOnly)
John Nagle
--
http://mail.python.org/mailman/listinfo/python-list
