RE: [Pyparsing] help with catchall style token

[Paul M. <pa...@al...>]

Try using SkipTo, as in:

 StringStart() + Word(num,exact=2) + SkipTo(Word(num,exact=2)) +
Word(num,exact=2) + StringEnd()

Or in the spirit of DRY:

 twoDigits = Word(nums,exact=2)
 expr = StringStart() + twoDigits + SkipTo(twoDigits) + twoDigits +
StringEnd()

-- Paul


> -----Original Message-----
> From: pyp...@li... 
> [mailto:pyp...@li...] On 
> Behalf Of Carl Shimer
> Sent: Thursday, April 27, 2006 12:05 PM
> To: pyp...@li...
> Subject: [Pyparsing] help with catchall style token
> 
> Hi,
> 
> I would like to do something like this with pyparsing:
> 
> Sample regex:
> 
> r'^\d{2}.*\d{2}$'
> 
> this matches on two numbers, followed by whatever is in the 
> middle, and ends with two numbers.
> 
> I have tried the following with pyparsing but I can't find a 
> workable solution: 
> 
> StringStart() + Word(num,exact=2) + Regex('.*') + 
> Word(num,exact=2) + StringEnd()
> 
> this doesn't work as the Regex eats everything.
> 
> another thing I tried was 
> 
> StringStart() + Word(num,exact=2) + Word(alphas+alphas8bit) + 
> Word(num,exact=2) + StringEnd() 
> 
> this sort of works but doesn't work for utf-8 encoded 
> characters that may be in the range below alphas.
> 
> Is there a solution here?
> 
> 
> 
>