From: Carlos <angus@...>
Date: 2006-12-06T19:17:06+09:00
Subject: Re: GOLF: hex string to dotted quad

Max Muermann wrote:

> On 12/6/06, Martin DeMello <martindemello@gmail.com> wrote:
> 
>> irb(main):021:0> hex_ip = "c0a80167"
>> => "c0a80167"
>> irb(main):022:0>  ip = hex_ip.scan(/../).map {|i| i.to_i(16)}.join(".")
>> => "192.168.1.103"
> 
> 
> hex_ip.gsub(/../) {|s| "#{s.hex}."}[0..-2]
> 
> The deletion of the trailing '.' is so ugly... but it's a leetle bit 
> shorter ;)

The best so far :). Further refining:

hex_ip.gsub(/../) {"#{$&.hex}."}.chop

--