Throughout this book, we've explored a number of different plugins and concepts to help construct a processor; over the last few pages, we've brought together some of those concepts as the final version of our processor—at least one we can start using in anger.

There is one key step left to complete—we've compiled code for simple exercises, this works well, but doesn't really represent the kind of processes we might go through as developers! For this, we need to construct a real-world example, and put our processor through its paces.

As luck would have it, there is an example web page we can use from the code download that accompanies this book—let's take a look at putting its style sheet code through our processor. We'll begin by running the normal tasks we've done before, but will add a selection of plugins to make for a more realistic example: