From: "Peña, Botp" <botp@...>
Date: 2008-06-10T18:53:56+09:00
Subject: Re: To and from hex nibbles

# s.scan(/../).map{|i| i.to_i(16)}.pack("C*")
# #=> "testing 123"

sorry, i missed dblack's scanf

s.scanf("%2x"*s.size).pack("C*")
#=> "testing 123"

kind regards -botp