Getting pyparsing to backtrack

[Thomas Jollans]

On 07/06/2010 04:21 AM, Dennis Lee Bieber wrote:
> On Mon, 05 Jul 2010 15:19:53 -0700, John Nagle <nagle at animats.com>
> declaimed the following in gmane.comp.python.general:
> 
>>    I'm working on street address parsing again, and I'm trying to deal
>> with some of the harder cases.
>>
> 
> 	Hasn't it been suggested before, that the sanest method to parse
> addresses is from the end backwards... 
> 
> 	So that: 
> 
> 123 N South St.
> 
> is parsed as
> 
> St. South N 123

You will of course need some trickery for that to work with

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