[Versa] Versa issue: subgraph primitives?

[Michael Olson]

>
>> I guess, since in Versa just about everything is a list, then we  
>> really
>> do have sub graphs as first class objects.  I still think we need to
>> define what
>>
>> item({sub-graph expression},0)
>>
>> returns though.  I don't think it can be another sub-graph of length  
>> 1.
>
> I think that for 2.0 this is where Chime's suggestion of Python slice
> syntax+semantics comes in (for lists rather than sets, of course).
>

I'm not clear on your response.  Maybe it was a bad question.  To  
restate, what is the data type of the results of the above expression?   
I guess what I am arguing is that we still need a statement data type  
even with a sub-graph datatype.

Mike

>
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Mike Olson                                                Principal  
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