ANTLR and Terence Parr

I am reading Terence Parr 's The definitive ANTLR reference. I have to say that it is not often that I regret not being 25 years younger to attend Terence courses at the University of San Francisco.

Theories behind compilers are still complex but Terence is doing a great job at making things clearer for people like us, with concrete problems on their hands.