[antlr-interest] Reduction in code base after yanking AST stuff

[Dave Thomas]

>
> When looking at the pipeline as Lexer -> Parser -> Tree manipulation (v3,
> AST rewrite vs v4 SAX, DOM, visitor) -> Output (String Template),
>
> Agreed.  I use ANTLR just for the Lexer -> Parser to implement Inversion
of Control for DSLs (and soon, user-extensible DSLs).  And to ace job
interview questions when they ask you to do really brain-damaged stateful
string manipulation (which is really the same language problem).  ANTLR
makes short work of that.