Regular expressions are a staple of development. A grammar for matching forms to text, regular expressions are used in Apple development for use with predicates, in validating text entry and more.
O'Reilly just released a new edition of Jan Goyvaerts' & Steven Levithan's "Regular Expressions Cookbook" (US$50 list price, $30 street price.)
Revised and expanded, the book offers a wealth of common regex use-cases, from numbers to URLs, email addresses to post codes.
It's primarily a reference book, so don't expect to sit down with this book on a warm and cozy night. It's the book that you put on your shelf and pull out whenever you need to look up a few specific patterns.
I grabbed the first edition
