[antlr-interest] Translating from one language to another

[Tom Smith]

In your case, I'd definitely say "buy the book," because there is a fine
example of a "rewriter," covered in detail over several subsections of
Chapter 9 (Generating Structured Text with Templates and Grammars).  There
is one version that rewrites straight from the parser grammar, and another
version using AST generation with a tree walker.

Hope this helps,
Tom.

On Mon, Jul 21, 2008 at 3:54 PM, David Tauzell <dave at tauzell.org> wrote:

> I'd like to translate from language A to java.  I've written a grammar that
> parses language A and generates an AST.   The language is mostly like java,
> except there are a few cases where I'll need to change the input.  For
> example, something like:
>
>     a.b.c.d = foo
>
> will be converted to
>
>     a.get("b").get("c").get("d").setValue(foo)
>
> Other stuff like:
>
>    if( foo == "bar") {
>       ...
>    }
>
> can stay like it is.
>
> I'm not sure what is the best way to proceed.  Should I somehow use
> StringTemplate?  Should I walk the AST and generate output? Is this question
> to vague? Do I just need to buy the ANTLR book and learn more about ANTLR?
>
> Thanks,
>     Dave
>
>
>
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