RubyKaigi 2017
http://rubykaigi.org/2017/presentations/duerst.html
Regular expressions are a very important part of the toolkit of every Ruby programmer. This talk will help improve your understanding of regular expressions, including how to use them from Ruby, and how they are implemented. Examples will include things Ruby can do but other programming languages can't, huge regular expressions, substitutions that change as we go, and performance improvements for future Ruby versions.
RubyKaigi 2017