Fixed #29: Parsers: Implement parsing memoization

Fixed #77 : Parser: ShortTermMemoryParser should be called separately
Fixed #78 : Remove VariableNode usage
Fixed #79 : ConceptManager: Implement compile caching
Fixed #80 : SheerkaExecute : parsers_key is not correctly computed
Fixed #81 : ValidateConceptEvaluator : Validate concept's where and pre clauses right after the parsing
Fixed #82 : SheerkaIsAManager: isa() failed when the set as a body
Fixed #83 : ValidateConceptEvaluator : Support BNF and SYA Concepts
Fixed #84 : ExpressionParser: Implement the parser as a standard parser
Fixed #85 : Services: Give order to services
Fixed #86 : cannot manage smart_get_attr(the short, color)

src/parsers/SequenceNodeParser.py

@@ -380,9 +380,11 @@ class SequenceNodeParser(BaseNodeParser):
             for node in parser_helper.sequence:
                 # if isinstance(node, ConceptNode):
                 #     if len(node.concept.get_metadata().variables) > 0:
-                #         node.concept.get_metadata().is_evaluated = True  # Do not try to evaluate those concepts
+                #         node.concept.get_hints().is_evaluated = True  # Do not try to evaluate those concepts
                 node.tokens = self.parser_input.tokens[node.start:node.end + 1]
                 node.fix_source()
+                if isinstance(node, ConceptNode):
+                    node.concept.get_hints().use_copy = True
 
             parser_helper_hash_code = compute_hash_code(parser_helper)
             if parser_helper_hash_code in already_seen:
@@ -426,7 +428,7 @@ class SequenceNodeParser(BaseNodeParser):
                         self.sheerka.new(
                             BuiltinConcepts.PARSER_RESULT,
                             parser=self,
-                            source=parser_input,
+                            source=parser_input.as_text(),
                             body=parser_helper.sequence,
                             try_parsed=parser_helper.sequence)))