Your thinking very closely reflects mine. I actually did build a C# parser generator producing strongly typed AST from base ANSI grammar and inherited Oracle, S

Your thinking very closely reflects mine. I actually did build a C# parser generator producing strongly typed AST from base ANSI grammar and inherited Oracle, SQL Server, MySQL, and Postgres grammars. We are using it in our database migration products and will soon use it for Resharper style intelligence in a very lightweight and fast database manager. It never occurred to me to publish the parser generator, though. It's our secret sauce.