Fixed minor issues and enhancements

src/core/builtin_helpers.py

@@ -72,6 +72,9 @@ def expect_one(context, return_values):
             sheerka.new(BuiltinConcepts.IS_EMPTY, body=return_values),
             parents=return_values)
 
+    if len(return_values) == 1:
+        return return_values[0]
+
     successful_results = [item for item in return_values if item.status]
     number_of_successful = len(successful_results)
     # total_items = len(return_values)
@@ -113,7 +116,7 @@ def expect_one(context, return_values):
         return sheerka.ret(
             context.who,
             False,
-            return_values[0],
+            return_values[0].body,
             parents=return_values)
     else:
         # test if only one evaluator in error

src/core/sheerka/Services/SheerkaCreateNewConcept.py

@@ -1,6 +1,7 @@
 import core.utils
 from core.builtin_concepts import BuiltinConcepts, ErrorConcept
 from core.concept import Concept
+from sdp.sheerkaDataProvider import SheerkaDataProviderDuplicateKeyError
 
 BNF_NODE_PARSER_CLASS = "parsers.BnfNodeParser_Old.BnfNodeParser"
 BASE_NODE_PARSER_CLASS = "parsers.BaseNodeParser.BaseNodeParser"

src/core/sheerka/Services/SheerkaEvaluateConcept.py

@@ -1,5 +1,5 @@
 from core.builtin_concepts import BuiltinConcepts
-from core.builtin_helpers import expect_one
+from core.builtin_helpers import expect_one, only_successful
 from core.concept import Concept, DoNotResolve, ConceptParts, InfiniteRecursionResolved
 
 CONCEPT_EVALUATION_STEPS = [
@@ -71,6 +71,11 @@ class SheerkaEvaluateConcept:
         :param logger:
         :return:
         """
+        def is_only_successful(r):
+#            return False
+            return context.sheerka.isinstance(r, BuiltinConcepts.RETURN_VALUE) and \
+            context.sheerka.isinstance(r.body, BuiltinConcepts.ONLY_SUCCESSFUL)
+
         steps = [BuiltinConcepts.BEFORE_PARSING, BuiltinConcepts.PARSING, BuiltinConcepts.AFTER_PARSING]
         for part_key in ConceptParts:
             if part_key in concept.compiled:
@@ -88,7 +93,8 @@ class SheerkaEvaluateConcept:
                     to_parse = self.sheerka.ret(context.who, True,
                                                 self.sheerka.new(BuiltinConcepts.USER_INPUT, body=source))
                     res = self.sheerka.execute(sub_context, to_parse, steps)
-                    concept.compiled[part_key] = res
+                    only_success = only_successful(sub_context, res)
+                    concept.compiled[part_key] = only_success.body.body if is_only_successful(only_success) else res
                     sub_context.add_values(return_values=res)
 
         for var_name, default_value in concept.metadata.variables:
@@ -106,7 +112,8 @@ class SheerkaEvaluateConcept:
                     to_parse = self.sheerka.ret(context.who, True,
                                                 self.sheerka.new(BuiltinConcepts.USER_INPUT, body=default_value))
                     res = self.sheerka.execute(context, to_parse, steps)
-                    concept.compiled[var_name] = res
+                    only_success = only_successful(sub_context, res)
+                    concept.compiled[var_name] = only_success.body.body if is_only_successful(only_success) else res
                     sub_context.add_values(return_values=res)
 
         # Updates the cache of concepts when possible
@@ -114,6 +121,7 @@ class SheerkaEvaluateConcept:
             self.sheerka.get_by_id(concept.id).compiled = concept.compiled
 
     def resolve(self, context, to_resolve, current_prop, current_concept, force_evaluation):
+
         if isinstance(to_resolve, DoNotResolve):
             return to_resolve.value
 

src/parsers/ExactConceptParser.py

@@ -11,7 +11,7 @@ class ExactConceptParser(BaseParser):
     Tries to recognize a single concept
     """
 
-    MAX_WORDS_SIZE = 3
+    MAX_WORDS_SIZE = 6
 
     def __init__(self, max_word_size=None, **kwargs):
         BaseParser.__init__(self, "ExactConcept", 80)
@@ -36,7 +36,9 @@ class ExactConceptParser(BaseParser):
 
         if len(words) > (self.max_word_size or self.MAX_WORDS_SIZE):
             context.log(f"Max words reached. Stopping.", self.name)
-            return sheerka.ret(self.name, False, sheerka.new(BuiltinConcepts.CONCEPT_TOO_LONG, body=parser_input))
+            too_long = sheerka.new(BuiltinConcepts.CONCEPT_TOO_LONG, body=parser_input)
+            body = sheerka.new(BuiltinConcepts.NOT_FOR_ME, body=parser_input, reason=too_long)
+            return sheerka.ret(self.name, False, body)
 
         recognized = []  # keep track of the concepts founds
         for combination in self.combinations(words):

tests/core/test_builtin_helpers.py

@@ -49,8 +49,7 @@ class TestBuiltinHelpers(TestUsingMemoryBasedSheerka):
         ]
         res = core.builtin_helpers.expect_one(self.get_context(sheerka), items)
         assert not res.status
-        assert res.value, items[0]
-        assert res.parents == items
+        assert res.value == items[0].body
 
     def test_i_can_use_expect_when_only_errors_2(self):
         sheerka = self.get_sheerka()
@@ -74,7 +73,6 @@ class TestBuiltinHelpers(TestUsingMemoryBasedSheerka):
         res = core.builtin_helpers.expect_one(self.get_context(sheerka), items)
         assert res.status
         assert res.body == items[0].body
-        assert res.parents == items
 
     def test_i_can_use_expect_one_when_one_success_2(self):
         sheerka = self.get_sheerka()

tests/parsers/test_AtomsParser.py

@@ -193,6 +193,20 @@ class TestAtomsParser(TestUsingMemoryBasedSheerka):
             assert sheerka.isinstance(wrapper, BuiltinConcepts.PARSER_RESULT)
             assert lexer_nodes == expected_array
 
+    def test_i_can_parse_concepts_with_isa(self):
+        concepts_map = {
+            "one": Concept("one"),
+            "number": Concept("number"),
+        }
+
+        sheerka, context, parser = self.init_parser(concepts_map)
+        sheerka.set_isa(context, sheerka.new("one"), sheerka.new("number"))
+
+        res = parser.parse(context, "one")
+        lexer_nodes = res.body.body
+        expected_array = compute_expected_array(concepts_map, "one", ["one"])
+        assert lexer_nodes == expected_array
+
     @pytest.mark.parametrize("text", [
         "foo",
         f"foo one",

tests/parsers/test_ExactConceptParser.py

@@ -129,12 +129,14 @@ class TestExactConceptParser(TestUsingMemoryBasedSheerka):
 
     def test_i_can_detect_concepts_too_long(self):
         context = self.get_context(self.get_sheerka(singleton=True))
-        source = "a very very long concept"
+        source = "a very but finally too long concept"
         res = ExactConceptParser().parse(context, source)
 
         assert not res.status
-        assert context.sheerka.isinstance(res.value, BuiltinConcepts.CONCEPT_TOO_LONG)
-        assert res.value.body == "a very very long concept"
+        assert context.sheerka.isinstance(res.value, BuiltinConcepts.NOT_FOR_ME)
+        assert context.sheerka.isinstance(res.value.reason, BuiltinConcepts.CONCEPT_TOO_LONG)
+        assert res.value.reason.body == source
+        assert res.value.body == source
 
     def test_i_can_detect_concept_from_tokens(self):
         context = self.get_context(self.get_sheerka(singleton=True))

tests/parsers/test_SyaNodeParser.py

@@ -776,7 +776,7 @@ class TestSyaNodeParser(TestUsingMemoryBasedSheerka):
         ("(one infix two) (three prefixed)", ["one", "two", "infix", "three", "prefixed"]),
     ])
     def test_i_can_post_fix_sequences(self, expression, expected):
-        sheerka, context, parser = self.init_parser(cmap, None)
+        sheerka, context, parser = self.init_parser()
 
         res = parser.infix_to_postfix(context, expression)
         expected_array = compute_expected_array(cmap, expression, expected)
@@ -784,6 +784,24 @@ class TestSyaNodeParser(TestUsingMemoryBasedSheerka):
         assert len(res) == 1
         assert res[0].out == expected_array
 
+    @pytest.mark.parametrize("expression", [
+        "one ? two : three",
+        "one?two:three",
+        "one ?two:three",
+        "one? two:three",
+        "one ? two :three",
+        "one ? two: three",
+    ])
+    def test_whitespaces_may_be_omitted_in_some_circumstances(self, expression):
+        sheerka, context, parser = self.init_parser()
+
+        expected = ["one", "two", "three", "?"]
+        res = parser.infix_to_postfix(context, expression)
+        expected_array = compute_expected_array(cmap, expression, expected)
+
+        assert len(res) == 1
+        assert res[0].out == expected_array
+
     def test_the_more_concepts_the_more_results(self):
         concepts_map = {
             "plus": Concept("a plus b").def_var("a").def_var("b"),