Working on #98 : Persist attribute value when global_truth is set to true

src/parsers/SyaNodeParser.py

@@ -199,7 +199,7 @@ class SyaConceptParserHelper:
             self.expected = temp
 
         self.eat_token(first_keyword_found)  # remove the first token
-        self.tokens.append(first_keyword_found)
+        self.tokens.append(first_keyword_found)  # and add it to the list of tokens eaten
 
     def is_matched(self):
         return len(self.expected) == 0
@@ -554,7 +554,7 @@ class InFixToPostFix:
 
         def nb_expected_parameters(expected):
             """
-            Count the number of successive variables that are expected
+            Count the number of successive variables that are still expected
             :param expected:
             :return:
             """
@@ -1228,10 +1228,10 @@ class SyaNodeParser(BaseNodeParser):
         :param concept:
         :return:
         """
-        # We only concepts that has parameter (refuse atoms)
+        # We only considers concepts that has parameter variables (refuse atoms)
         # Bnf definitions are not supposed to be managed by this parser either
-        return len(
-            concept.get_metadata().variables) > 0 and concept.get_metadata().definition_type != DEFINITION_TYPE_BNF
+        return (concept.get_metadata().definition_type != DEFINITION_TYPE_BNF and
+                len(concept.get_metadata().parameters) > 0)
 
     def infix_to_postfix(self, context, parser_input: ParserInput):
         """
@@ -1368,6 +1368,14 @@ class SyaNodeParser(BaseNodeParser):
         concept = sheerka.new_from_template(item.concept, item.concept.key)
         concept_metadata = []
         for param_index in reversed(range(len(concept.get_metadata().variables))):
+            param_name = concept.get_metadata().variables[param_index][0]
+
+            if param_name not in concept.get_metadata().parameters:
+                # This is not a real concept parameter, but a concept variable
+                # just copy its default value
+                concept_metadata.append(concept.get_metadata().variables[param_index])
+                continue
+
             inner_item = self.postfix_to_item(sheerka, postfixed)
             if inner_item.start < start:
                 start = inner_item.start
@@ -1376,7 +1384,6 @@ class SyaNodeParser(BaseNodeParser):
             has_unrecognized |= isinstance(inner_item, (UnrecognizedTokensNode, SourceCodeWithConceptNode)) or \
                                 hasattr(inner_item, "has_unrecognized") and inner_item.has_unrecognized
 
-            param_name = concept.get_metadata().variables[param_index][0]
             param_value = inner_item.concept if hasattr(inner_item, "concept") else \
                 [inner_item.return_value] if isinstance(inner_item, SourceCodeNode) else \
                     inner_item