I highly recommend not using lex/yacc. I wrote an SQL parser in a day for a custom DB at work. It’s super easy to write recursive descendent parsers once you kn

I highly recommend not using lex/yacc. I wrote an SQL parser in a day for a custom DB at work. It’s super easy to write recursive descendent parsers once you know how to do it. So just learn it by starting with something simple. XML, Lisp or JSON for example.