Fixed #48 : RelationalExpressionParser: Implement relational operator parser

Fixed #49 : ExpressionParser: Implement ExpressionParser
Fixed #50 : Implement ReteConditionExprVisitor
Fixed #51 : Implement PythonConditionExprVisitor
Fixed #52 : SheerkaConceptManager: I can get and set concept property

tests/sheerkarete/test_network.py

@@ -10,7 +10,7 @@ from sheerkarete.common import V, WME, ReteToken
 from sheerkarete.conditions import Condition, NegatedCondition, AndConditions
 from sheerkarete.join_node import JoinNode
 from sheerkarete.negative_node import NegativeNode
-from sheerkarete.network import ReteNetwork, FACT_ID
+from sheerkarete.network import ReteNetwork, FACT_ID, FACT_NAME, FACT_SELF, FactObj
 from tests.TestUsingMemoryBasedSheerka import TestUsingMemoryBasedSheerka
 from tests.sheerkarete.RuleForTestingRete import RuleForTestingRete
 
@@ -247,6 +247,25 @@ class TestReteNetwork(TestUsingMemoryBasedSheerka):
         assert matches[0].pnode.rules == [rule]
         assert network.facts == {'f-00000': ret}
 
+    def test_i_can_add_primitive(self):
+        network = ReteNetwork()
+        rule = RuleForTestingRete(AndConditions([Condition(V("a"), FACT_NAME, "a"),
+                                                 Condition(V("a"), FACT_SELF, 10),
+                                                 ]))
+        network.add_rule(rule)
+        network.add_obj("a", 10)
+
+        assert network.working_memory == {
+            WME("f-00000", "__name__", "a"),
+            WME("f-00000", "__self__", 10),
+        }
+
+        # sanity check that the WME produced match the condition
+        matches = list(network.matches)
+        assert len(matches) == 1
+        assert matches[0].pnode.rules == [rule]
+        assert network.facts == {'f-00000': FactObj(10)}
+
     def test_i_can_distinguish_objects_with_different_value(self):
         network = ReteNetwork()
         rule = RuleForTestingRete(AndConditions([