From: eggie5 <eggie5@...>
Date: 2007-09-25T15:45:12+09:00
Subject: Extract numbers from string

Say I have a phone number "(555) 555-5555" and I want to extract the
numbers from it. What's the most succinct way to do this? E.g.:

old_num = "(555) 111-5555"
new_num = "5551115555"

old_num = "555-666-7777"
new_num = "5556667777"