Fixed memory() and RET usage

src/core/builtin_concepts.py

@@ -15,9 +15,9 @@ class BuiltinConcepts(Enum):
     """
     SHEERKA = "sheerka"
 
-    # processing instructions during sheerka.execute()
+    # processing instructions during sheerka.execute() or sheerka.evaluate_concept()
     # The instruction may alter how the actions work
-    DEBUG = "debug" # activate all debug information
+    DEBUG = "debug"  # activate all debug information
     EVAL_BODY_REQUESTED = "eval body"  # to evaluate the body
     EVAL_WHERE_REQUESTED = "eval where"  # to evaluate the where clause
     RETURN_BODY_REQUESTED = "return body"  # returns the body of the concept instead of the concept itself
@@ -53,7 +53,7 @@ class BuiltinConcepts(Enum):
 
     # builtin attributes
     ISA = "is a"  # when a concept is an instance of another one
-    COMMAND = "command"  # when the concept must be auto evaluated
+    AUTO_EVAL = "auto eval"  # when the concept must be auto evaluated
 
     # object
     USER_INPUT = "user input concept"  # represent an input from an user
@@ -155,7 +155,7 @@ BuiltinUnique = [
     BuiltinConcepts.TESTING,
 
     BuiltinConcepts.ISA,
-    BuiltinConcepts.COMMAND,
+    BuiltinConcepts.AUTO_EVAL,
 
     BuiltinConcepts.INVALID_LESSER_OPERATION,
     BuiltinConcepts.INVALID_GREATEST_OPERATION,