Regular expression syntax is very difficult for beginners to get a firm grasp on. As a learning exercise I considered creating a reference here for my own use. After searching the web I found several tutorials that were helpful in describing the various parts of regular expressions and how they could be used. I have included several here for myself and for you.
http://www.zytrax.com/tech/web/regex.htm - Regular Expression User Guide
http://www.regular-expressions.info/tutorial.html - Regular Expression Tutorial
