ANTLR is one of the parser generators that makes Yacc obsolete. So you're doing something right. (I personally think ANTLR is too complicated.) I've tried work

ANTLR is one of the parser generators that makes Yacc obsolete. So you're doing something right. (I personally think ANTLR is too complicated.) I've tried working with other parser generators, but I always keep coming back to hand-coded recursive descent. The biggest advantage IMO is that they're both easier to debug, and can be made to report errors in input much better than parser-generator generated ones.