From: Jason Lillywhite <jason.lillywhite@...>
Date: 2009-08-07T00:27:30+09:00
Subject: Re: remove commas from string

Steve Ross wrote:

> Why so complex? Perhaps:
> 
>  >> s.gsub(/\b(\d+),(\d+)\b/, '\1\2')
> => "B747-400, 8357 miles, 561 mph, 56000 lbs."
> 
> Is there a corner case I'm missing here?

So I think I would like to try a non-block option but this code above 
misses the second comma if I have say 12,134,650 lbs instead of 56,000 
lbs in my string.

It looks like I need Ruby 1.9 to do this: s.gsub(/(?<=\d),(?=\d{3})/, 
'')

If I have not yet installed Ruby 1.9, what would be a good non-block 
regex that is more robust?

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