Re: [Jscheme-user] Multiple Independent JSchemes

[matthew g. <mgr...@co...>]

Hi Tim,

I would like to have multiple REPLs each with their own input, output, 
and error,  yet share an Evaluator 'context'. In effect separating the 
R and the P from the E. Should or could this be accomplished by having 
separate instances of a jsint.Evaluator and then share the 
'environment' between them? Would that be the 'correct way'? Thanks, 
any help would be appreciated.

-matt grisius


On May 19, 2004, at 12:56 AM, Timothy John Hickey wrote:

> The jscheme.JS class has been modified so that it allows multiple 
> Independent JScheme
> instances. This requires a change to the way the JS class is used to 
> call Scheme from Java.
> Many thanks to Toby Allsopp for this extension!
>
> Previously, JS defined static methods for evaluating expressions and 
> calling procedures.
> All of those methods are now instance methods and you first need to 
> construct an instance:
>
> JS js = new JS();
>     js.load(new java.io.File("app.init"));
>     js.call("describe", this);
>   ...
> or from Scheme
> (define js (jscheme.JS.))
> (.eval js '(define z 5))
> (.eval js '(+ z 1))
>
> See the javadoc for jscheme.JS for more examples....
>
> This should make it easier to build JScheme plugins for Eclipse and 
> other IDEs
>
> If you run into any problems, please tell us right away so we can fix 
> any bugs
> that may have been introduced by this fairly major change.
>
> Cheers,
> ---Tim---
>
>
>
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