Added basic implentation for where

tests/parsers/test_DefaultParser.py

@@ -3,7 +3,7 @@ import ast
 
 from core.builtin_concepts import ParserResultConcept, BuiltinConcepts, ReturnValueConcept
 from core.concept import Concept
-from parsers.ConceptLexerParser import OrderedChoice, StrMatch
+from parsers.ConceptLexerParser import OrderedChoice, StrMatch, ConceptExpression
 from parsers.PythonParser import PythonParser, PythonNode
 from core.tokenizer import Keywords, Tokenizer, LexerError
 from parsers.DefaultParser import DefaultParser, NameNode, SyntaxErrorNode, CannotHandleErrorNode, IsaConceptNode
@@ -246,7 +246,7 @@ def concept add one to a as
         parser = DefaultParser()
         res = parser.parse(context, text)
         node = res.value.value
-        definition = OrderedChoice(a_concept, StrMatch("a_string"))
+        definition = OrderedChoice(ConceptExpression(a_concept, rule_name="a_concept"), StrMatch("a_string"))
         parser_result = ParserResultConcept(BnfParser(), "a_concept | 'a_string'", definition, definition)
         expected = get_def_concept(name="name", body="__definition[0]", definition=parser_result)
 
@@ -321,7 +321,7 @@ def concept add one to a as
         ("def concept 'name", "Missing Trailing quote", "'name"),
         ("def concept name as 'body", "Missing Trailing quote", "'body"),
         ("def concept name from bnf 'expression", "Missing Trailing quote", "'expression"),
-        ("def concept c::", "Concept name not found", ""),
+        ("def concept c::", "Concept identifiers not found", ""),
     ])
     def test_i_cannot_parse_when_tokenizer_fails(self, text, error_msg, error_text):
         parser = DefaultParser()