For anyone that's struggled with regular expressions and is in need of some good solid examples, you might want to check out the new book review over on Slashdot about the new APress book Regular Expression Recipes: A Problem-Solution Approach for one option.

If you spend time working writing applications that have to do pattern matches and/or replacements, you know about some of the intricacies of regular expressions. For many people they can be an arcane hodgepodge of odd characters that somehow manage to do wonderful things, but they don't have enough time (or interest) to really understand how to code them. Nathan A. Good has written Regular Expression Recipes: A Problem-Solution Approach for those people. In its relatively slim 289 pages, he offers 100 regular expressions in a cookbook format, tailored to solve problems in one of six broad categories (Words and Text, URLs and Paths, CSV and Tab-Delimited Files, Formatting and Validating, HTML and XML, and Coding and Using Commands)." Read on for the rest of Lodato's review.

While it's not exactly a glowing review, he does note that the book seems to be a good resource for solutions to common problems that can be easily solved with a quick regular expression. The fact that they make the examples easy enough to translate into whatever language you're using is yet another plus for the recommendation of this book...