This little method (now also available in zucker/debug) is useful for understanding and creating regexes:
Hi, I am Jan. This is my old Ruby blog. I still post about Ruby, but I now do it on idiosyncratic-ruby.com. You should also install Irbtools to improve your IRB.
Not everyone likes debuggers. I rather print the debug values myself – it works and I do not need to learn a debugger :P
The Zucker gem has gotten some new features. Installation is as easy as
gem install zucker