The book's chapter 3 does not describe the current state of the art. I find it is useful only as a historic background up to a certain point in time (1969?). H

The book's chapter 3 does not describe the current state of the art. I find it is useful only as a historic background up to a certain point in time (1969?). However, from a practical standpoint, if one wants to want to implement a parser (for the purpose of a compiler) or attempt to use the book in order to try to save time deciding what is a good parser that does not suffer from algorithmic shortcomings, one is advised to look at more modern algorithms. Notably, anything with LR in its name, anything called PEG or packrat can be outright avoided if one values one's time.