sscanf ?

[Bjorn Pettersen]

> From: Bruce Edge [mailto:bedge at troikanetworks.com] 
> 
> In <3BFAA0FC.EB3CB91B at alcyone.com>, Erik Max Francis wrote:
> 
> > Bruce Edge wrote:
> > 
> >> I know about all the regex stuff, but I have the format 
> string that 
> >> was used to generate a string, which I'd like to use to 
> decompose it 
> >> back into it's source data:
> >> 
> >> fmtstr = "%02d.%02d"
> >> 
> >> str = fmtstr % ( x, y )
> >> 
> >> # Now get x any y back using only str and fmtstr:
> >> 
> >> (x, y ) = ?
> > 
> > 	x, y = map(int, str.split('.'))
> > 
> 
> OK, that works for this case, I was looking for something 
> more generic.
> 
> What about for this case:
> 
> 	fmtstr = "x=%02d and y is %02d"
> 
> currently I'm looking at converting the %02d into \d{:2} for 
> use with the re module.

Maybe the re module will help?

>>> s = 'x=%02d and y is %02d'
>>> s % (10,12)
'x=10 and y is 12'
>>> import re
>>> m = re.match(r'x=(\d+) and y is (\d+)', s % (10,12))
>>> m.groups()
('10', '12')
>>>

-- bjorn