From: Zach Dennis <zdennis@...>
Date: 2004-02-04T06:21:20+09:00
Subject: Re: String.hex and valid mac addresses : a cleaner way ?

You could try something like:

while gets
	a = $_.split(/:/)
	a.each{ |element|
		puts "debug #{$.} element: #{element}"
	    if( element =~ /^[\da-fA-F][\da-fA-F]$/ ) then
	    	#if it's valid
	    else
	    	#if the element is not valid
	    	puts "bad element";  end } end

or for a shorter version:

while gets
	puts "Reading in #{$_.chomp}:"
	a = $_.split(/:/)
	a.each{ |element|
		puts "\tFound bad element #{element}" unless ( element =~
/^[\da-fA-F][\da-fA-F]$/ ) } end

HTH,

Zach