Re: [rules-dev] Xtext and the Rete DSL.
Leonardo,
I did prototyped a Rete DSL editor with Xtext when I was developing
the grammar for this. The reason in the end for me to drop it is that
we need the parser running in core to execute the tests quickly during
build and the parser generated by XText requires the addition of
several dependencies (due to the instrumentation it does) that we
don't want in core.
Since it is something that is of use for basically 3 people in the
whole world (me, you and mark)... :) I did not wanted to spend more
time figuring a way to either allow the parser to be "cleaned up"
somehow for inclusion in core without the dependencies or a way to
make a separate module that would be responsible for testing Rete.
Of course, if someone wants to step up and do it, we would not
oppose, but there are lots of other priorities in our plates
already... :(
Edson
2010/11/8 Mark Proctor <mproctor(a)codehaus.org>:
On 08/11/2010 10:33, Leonardo Gomes wrote:
I've been using the Rete DSL a lot these days and was thinking that it could
be a good idea to provide some Eclipse infra-structure (syntax highlighting,
code completion, validation) to it using Xtext
(http://www.eclipse.org/Xtext/). It's built on top of antlr, so maybe we
could even reuse the grammar that we already have. I know that, by default,
you should right you grammar using their simplified version.
sure could be intersting.
I'd be careful about doing too much work, as I'm gonna need to see the
testing framework updated, so that it an unit test the new rete data
structures I have for collection oriented match.
I'm also wondering if we might be better served using a type safe Scala
datastructure/dsl....
Mark
Maybe the guys there would also be interested in providing something to
Drools. It could be a showcase for them.
Not sure if this also applies to the Eclipse DRL things that we have.
Cheers,
Leonardo.
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Edson Tirelli
JBoss Drools Core Development
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