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)

tests/parsers/test_BnfNodeParser.py

@@ -1927,6 +1927,27 @@ class TestBnfNodeParser(TestUsingMemoryBasedSheerka):
         assert res.status
         compare_with_test_object(res.value.value, expected_array)
 
+    def test_i_cannot_parse_regex_concept_mixed_with_unrecognized_sya(self):
+        my_map = {
+            "hex": self.bnf_concept("hex", RegExMatch("[a-f0-9]{8}")),
+            "isa": Concept("x is an y", body="isinstance(x, y)", pre="is_question()").def_var("x").def_var("y"),
+            "isafoo": Concept("x is an foo", body="False", pre="is_question()").def_var("x"),
+            "q": Concept("q ?", body="question(a)").def_var("q")
+        }
+        
+        # I need the concept isafoo to fool SyaNodeParser when parsing the sub text 'is an hex ?'"
+        # The parser will try to recognize 'is an foo', will fail and will revert the result to UTN()
+        # It's this UTN that need to be properly handled
+
+        sheerka, context, parser = self.init_parser(my_map, init_from_sheerka=True, create_new=True)
+        sheerka.set_precedence(context, my_map["isa"], my_map["q"])
+        sheerka.set_precedence(context, my_map["isafoo"], my_map["q"])
+
+        text = "01234567 is an hexadecimal ?"
+        res = parser.parse(context, ParserInput(text))
+        assert not res.status
+
+
     # @pytest.mark.parametrize("parser_input, expected", [
     #     ("one", [
     #         (True, [CNC("bnf_one", source="one", one="one", body="one")]),