Enumerating formatting strings

[Steve Holden]

Michael Spencer wrote:
> Andrew Dalke wrote:
> 
>> I see you assume that only \w+ can fit inside of a %()
>> in a format string.  The actual Python code allows anything
>> up to the balanced closed parens.
>>
> Gah! I guess that torpedoes the regexp approach, then.
> 
> Thanks for looking at this
> 
> Michael
> 
While Andrew may have found the "fatal flaw" in your scheme, it's worth 
pointing out that it works just fine for my original use case.

regards
  Steve
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