Implemented some enhancement request and fixed some bugs

Fixed #2 : Variables are not recognized when inside a rule token
Fixed #15 : Rule: rete attributes are lost when a new ontology is created
Fixed #14 : ReteNetwork: Format rules must not be added to Rete network
Fixed #16 : DefConcept: Variables are not recognized when they are keyword arguments
Fixed #4 : Comparison are not correctly set when comparison property is a concept
Fixed #14 : Parser: merge FunctionParser.NamesNode and ExpressionParser.NamesNode
Fixed #18 : Parser: Add SourceCodeNode test to UnrecognizedNodeParser
Fixed #20 : At startup Number concept is saved in db a numerous number of time
Fixed #21 : CacheManager: I can remove all elements from a ListIfNeededCache and fill it again
Fixed #22 : CacheManager: I can remove all elements from a SetCache and fill it again
Fixed #23 : HistoryManager: history() no longer works
Fixed #24 : HistoryManager: history() no longer works after creating an exec rule
Fixed #25 : SheerkaMemory: Use MemoryObject instead of sheerka.local
Fixed #26 : Debugger: add the list all available services..
Fixed #27 : CONCEPTS_GRAMMARS_ENTRY does not seems to be in use any more
Fixed #28 : Give order to services

src/sheerkapickle/sheerka_handlers.py

@@ -8,6 +8,7 @@ from core.sheerka.Sheerka import Sheerka
 from core.sheerka.services.SheerkaExecute import ParserInput
 from evaluators.BaseEvaluator import BaseEvaluator
 from parsers.BaseParser import BaseParser
+from parsers.DefRuleParser import DefRuleNode, DefExecRuleNode, DefFormatRuleNode
 from parsers.PythonParser import PythonNode
 from sheerkapickle.handlers import BaseHandler, registry
 
@@ -213,6 +214,26 @@ class PythonNodeHandler(BaseHandler):
         return instance
 
 
+class DefRuleNodeHandler(BaseHandler):
+    def flatten(self, obj, data):
+        pickler = self.context
+
+        data["tokens"] = pickler.flatten(obj.tokens)
+        data["name"] = pickler.flatten(obj.name)
+        return data
+
+    def new(self, data):
+        return DefRuleNode.__new__(DefRuleNode)
+
+    def restore(self, data, instance):
+        pickler = self.context
+
+        instance.__init__(data["source"], objects=pickler.restore(data["objects"]))
+        instance.tokens = pickler.restore(data["tokens"])
+        instance.name = pickler.restore(data["name"])
+        return instance
+
+
 def initialize_pickle_handlers():
     registry.register(Concept, ConceptHandler, True)
     registry.register(UserInputConcept, UserInputHandler, True)
@@ -221,3 +242,6 @@ def initialize_pickle_handlers():
     registry.register(ExecutionContext, ExecutionContextHandler, True)
     registry.register(Rule, RuleContextHandler, True)
     registry.register(PythonNode, PythonNodeHandler, True)
+    registry.register(DefRuleNode, DefRuleNodeHandler, True)
+    registry.register(DefExecRuleNode, DefRuleNodeHandler, True)  # TODO: fix inheritance that does not work
+    registry.register(DefFormatRuleNode, DefRuleNodeHandler, True)  # TODO: fix inheritance that does not work