This tutorial will teach you how to create your own regular expressions, starting with the most basic regex concepts and ending with the most advanced and specialized capabilities.
Working through this tutorial you will:
* gain an overview of the history behind the OAI-PMH and an overview of its key features;
* achieve a deeper technical insight into how the protocol works;
* learn something about some of the main implementation issues;
* find some useful starting points and hints that will help you as an implementer.