The interface sleep.interfaces.Evaluation is deprectated in sleep 2.1

[Shashidhar Gaurav]

Hi,

The interface sleep.interfaces.Evaluation is deprecated in 2.1. We are currently using sleep 2.0 and trying to upgrade to sleep 2.1 however since this interface is not present we cannot do an upgrade to 2.1. Could some one clarify that why this interface was removed or it is there with some different name?

Thanks

Shashidhar

[Raphael Mudge]

Hi Shashidhar,

I barely remember the Evaluation bridge, it was probably there to redefine the `backtick` expressions. I believe it may have been considered redundant and replaced with __EXEC__ mapped to a function in the global environment table. Notice __EXEC__ without an &. Here's an example of how it works:

http://www.ululatus.org/sleep_jircii/evaluation/

I think this is a rough approximation of what you're looking for.

public MyEvalBridge implements Function, Loadable {

    public void scriptLoaded(ScriptInstance si) {

        /* install this bridge */

        si.getScriptEnvironment().getEnvironment().put("__EXEC__", this);
    }

    public Scalar evaluate(String name, ScriptInstance script, Stack args) {

          /* this gets executed whenever a `backtick expression` is evaluated */
          return SleepUtils.getEmptyScalar();
    }

}

-- Raphael

Shashidhar

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The Sleep Scripting Project: http://sleep.dashnine.org/

[Shashidhar Gaurav]

Thanks alot Raphael, I will try that. 

[Andrew Hurd]

Next week Sleep makes its debut at SUNY Albany.  

I am teaching the Programming Languages Class and I am going to introduce the language to the class.

Raphael,

   Do you have any presentations you've done in the past on the language?

Does anyone else have any presentations?

Best wishes,

Andy Hurd

[Raphael Mudge]

Hi Andy,
This is pretty cool. The last time I gave a presentation on Sleep,
stand-alone, was 2007. Here is the slide deck:

http://sleep.dashnine.org/download/sleep_cdjdn_jun07.pdf

Several articles that I wrote are also at:

http://sleep.dashnine.org/documentation.html

Sleep lives though. DARPA funded several extensions to Sleep through
the Cortana effort under their Cyber Fast Track Program. Here is the
info on that:

http://blog.strategiccyber.com/2012/08/03/cortana-real-time-collaborative-hacking-with-bots/
http://blog.strategiccyber.com/2012/08/29/cortana-rise-of-the-automated-red-team-defcon-20-video/

It' part of my secret effort to sneak Sleep in to other people's lives. Teehee.

-- Raphael

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