[Versa] Updated test cases and spec

[Michael Olson]

Are checked into CVS.  The spec is a "version-0.4++".  It has minor  
changes to remove reduce/reduce conflict.  The addition of list  
constants, slicing and the statements function.  Also removed some no  
longer needed functions like "substring" (as its supplied by slicing).

I've written 437 test cases (in a RDF format similar to the RDF/OWL  
tests) and have a java implementation the executes all of properly  
(which I'll make available to the public soon I hope).  The tests are  
fairly thorough, though I need more negative tests.

The EBNF checked in is generated from bgen so its again not pretty, but  
complete.

To see a list of queries, co the CVS.  build it and look at  
build/TestCases.html  The HTML needs work but it does show three  
different views of the test cases.

Mike


------------------------------------------------------------------------ 
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Mike Olson                                                Principal  
Consultant
mike.olson at fourthought.com                +1 720 253 4662
Fourthought, Inc.                                       
http://Fourthought.com
PO Box 270590,                                       http://4Suite.org
Louisville, CO 80027-5009, USA
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