[sklogic]

It is actually an outdated view, to split a compiler into dedicated monolithic front-end and back-end parts. The more modern approach is very much the opposite. It is a nearly continuous, very long sequence of very simple transforms, rewriting a code seamlessly, all the way down from a front-end (i.e., a parser) to a back-end or multiple back-ends. And this approach is very alien to anything you'd find in the Dragon Book.

As for parsing, as I already said elsewhere in this thread, all the techniques from Dragon Book are not practical any more and are not used in the modern compilers. There are far better ways, which are not covered in the book, and they're far simpler, not even deserving a dedicated book at all.