Re: Newb question about calling Scheme from Java

What about interpreter.eval("(define foobar 'bar)"); ?

Mike J. Bell wrote:
> I'm trying to integrate SISC as a Scheme interpreter into a larger, 
> established product written in Java.  Anybody else do this, open-source 
> like, so I might peek at the ways and means?  Any advice on trying to 
> "replicate" a Java "programmer's" API inside SISC?  (i.e., ways to 
> automate all the (->jstring ...) and wrap/unwrap code that must go on 
> with s2j).
> 
> But I have specific questions to start out.  I need to pass a handle 
> from the "public" part of the Java API into the SISC interpreter so that 
> I might start tinkering.  (It's like a Java "environment").  I find my 
> heap, and do something like:
> 
> Context.execute(appContext, new SchemeCaller() {
>     public Object execute(Interpreter interpreter) throws SchemeException {
>         Symbol symbol = new Symbol("foobar");
>         Value value = SchemeBoolean.TRUE;
>         Symbol context = new Symbol("r5rs");
> 
>         interpreter.define(symbol, value, context);
>         interpreter.eval("...my scheme code...");
> ...
> 
> The problem is that foobar isn't defined in my environment inside the 
> eval statement.  I'm guessing that context=>Symbol("r5rs") is wrong 
> here, but the API docs don't really point me in a good direction.
> 
> Can anybody help with this first bit; i.e., how can I pass things into 
> my Scheme environment properly?
> 
> Thanks in advance for any simple and/or complex hints!
> 
> -- 
> Mike J. Bell on gmail
> 
> 
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