From: Tim Hunter <TimHunter@...>
Date: 2008-01-06T04:11:38+09:00
Subject: Re: Convert bignum to numeric and formatting

Damaris Fuentes wrote:
> Hi you all,
> 
> I'm trying to format a Bignum such as 1012345556 into 1.012.345.556
> (separating the thousands).

Leaving aside the Numeric extension for a minute, this bit of code 
solves the problem.

x = 12345678901234
t = x.to_s.reverse.gsub(/(\d){3}(?=\d)/) {|p| p + '.'}.reverse
puts t

I've seen other regexp solutions to this problem on this list, but the 
above code is what I came up with on the spur of the moment.

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