I have Scott's book, and I've read his coverage of parsing, although it's been over a year since, and TBH I don't think it's very good. The whole book just tries to cover too much, and ends up doing a fair amount of hand waving.
It covers a lot, but I didn't see much handwaving about the basics of parsing. Particularly the sections that apply to the functionality that people would use lex and yacc for.