C# Cookbook's Regular Expression chapter The long-awaited 'phantom' C# Cookbook from OReilly will be available in Jan '04. It has a sample chapter on 'Regular Expressions' available for download.. something to read during the cold Norwegian evenings ;-)
Using Regular Expressions in your apps can be a huge productivity boost from manually writing string parsing, comparison, and replacement routines. This skill is a *must have* for any serious developer. Also recommended is O'Reilly's
Mastering Regular Expressions and their
Regular Expression Pocket Reference. Another handy online reference is
RegExLib.com and of course the documentation available in the
MSDN Library. If you're looking for a tool that you can use to build regular expressions, you might want to check out
Expresso over on
Code Project (source available).