Crafting Interpreters contains everything you need to implement a full-featured, efficient scripting language. You’ll learn both high-level concepts around parsing and semantics and gritty details like bytecode representation and garbage collection. See also the blog article http://journal.stuffwithstuff.com/2020/04/05/crafting-crafting-interpreters/ of the author, Bob Nystrom.
Found on https://www.hpmuseum.org/forum/thread-17807-post-156535.html#pid156535