Jack Crenshaw has a nice series called Let's Build a Compiler. http://compilers.iecc.com/crenshaw/ http://compilers.iecc.com/crenshaw/. It was written many ye

Jack Crenshaw has a nice series called Let's Build a Compiler. http://compilers.iecc.com/crenshaw/ http://compilers.iecc.com/crenshaw/. It was written many years ago and posted to the comp.compilers usenet group, so the formatting is old-school, but the content is still useful. There's also a wikibook on the subject. https://en.wikibooks.org/wiki/Compiler_Construction https://en.wikibooks.org/wiki/Compiler_Construction