Early Praise for The Definitive ANTLR 4 Reference Parr’s clear writing and lighthearted style make it a pleasure to learn the practical details of building language processors. ➤ Dan Bornstein Designer of the Dalvik VM for Android ANTLR is an exceptionally powerful and flexible tool for parsing formal languages. At Twitter, we use it exclusively for query parsing in our search engine. Our grammars are clean and concise, and the generated code is efficient and stable. This book is our go-to reference for ANTLR v4—engaging writing, clear descriptions, and practical examples all in one place. ➤ Samuel Luckenbill Senior manager of search infrastructure, Twitter, Inc. ANTLR v4 really makes parsing easy, and this book makes it even easier. It explains every step of the process, from designing the grammar to making use of the output. ➤ Niko Matsakis Core contributor to the Rust language and researcher at Mozilla Research I sure wish I had ANTLR 4 and this book four years ago w
