From: CHubas <CHubas7@...>
Date: 2007-01-28T08:35:05+09:00
Subject: Question about digits

While playing a little with Ruby, I've been looking for a function 
each_digit, or something similar, and I couldn't find any (standard 
nor library). I think it'd be useful to have a function like that. 
It's pretty simple to implement one for Integers

class Integer
    def each_digit(base = 10, &block)
        return if zero?
        (self/base).each_digit(base, &block)
        yield self % base
    end
end

A first approach. Of course, it would be a little more complicated for 
negatives and Floats, specially dealing with precision.

What do you think?