Fixed #41 : Implement concept 'and'

_concepts_default.txt

@@ -27,6 +27,15 @@ def concept x has a y as hasa(x,y) pre is_question()
 def concept x has an y as hasa(x,y) pre is_question()
 # no need to auto eval as it's a question
 
+def concept x and y as x and y pre is_question()
+set_is_lesser(__PRECEDENCE, c:x and y:, 'Sya')
+set_is_less_than(__PRECEDENCE, c:q:, c:x and y:, 'Sya')
+
+def concept x or y as x or y pre is_question()
+set_is_lesser(__PRECEDENCE, c:x or y:, 'Sya')
+set_is_greater_than(__PRECEDENCE, c:x and y:, c:x or y:, 'Sya')
+set_is_less_than(__PRECEDENCE, c:q:, c:x or y:, 'Sya')
+
 # default
 def concept male
 def concept female

src/core/builtin_helpers.py

@@ -18,6 +18,22 @@ EVAL_STEPS = PARSE_STEPS + [BuiltinConcepts.BEFORE_EVALUATION, BuiltinConcepts.E
 PARSERS = ["EmptyString", "ShortTermMemory", "Sequence", "Bnf", "Sya", "Python"]
 
 
+def remove_python_nodes(context, return_values):
+    """
+    Try to reduce the number of return_values by removing return values with python node
+    :param context:
+    :param return_values:
+    :return:
+    """
+    res = []
+    for ret_val in return_values:
+        value = context.sheerka.objvalue(ret_val)
+        if not hasattr(value, "get_python_node"):
+            res.append(ret_val)
+
+    return res
+
+
 def is_same_success(context, return_values):
     """
     Returns True if all returns values are successful and have the same value
@@ -89,12 +105,25 @@ def expect_one(context, return_values):
 
     # too many winners, which one to choose ?
     if number_of_successful > 1:
+        # first, try to remove python node results.
+        # In case of conflict, the concept take precedence over the natural Python result
+        # as it is considered as an override (overload ?)
+        successful_results = remove_python_nodes(context, successful_results)
+
+        if len(successful_results) == 1:
+            return sheerka.ret(
+                context.who,
+                True,
+                successful_results[0].body,
+                parents=return_values)
+
         if is_same_success(context, successful_results):
             return sheerka.ret(
                 context.who,
                 True,
                 successful_results[0].value,
                 parents=return_values)
+
         else:
             if context.logger and context.logger.isEnabledFor(logging.DEBUG):
                 context.log(f"Too many successful results found by expect_one()", context.who)

src/jupyter/install_kernel.md

@@ -1,12 +1,12 @@
 To make Jupyter notebook recognize Sheerka, 
 the file kernel.json must be copied where the kernels are declared
 
- * First, open the kernel.json file and make sure that the path to SheerkaKernel is correct.
+ * First, open the kernel.json file and make sure that the path to SheerkaKernel.py is correct.
  * The copy it to the correct location
     * You can use the command 'jupyter kernelspec install </path/to/kernel>'
-    * or simply copy it using cp ;-)
+    * or simply copy 'Sheerka/kernel.json' into the folder 'kernels' (You may have to create it!)
 
-Valid locations for kernel.json are
+Valid locations for 'Sheerka/kernel.json' are
 
 | | Unix | Windows |
 |----|------| ---------------| 	

src/sdp/sheerkaDataProvider.py

@@ -57,7 +57,7 @@ class Event(object):
             return self._digest
 
         if not isinstance(self.message, str):
-            raise NotImplementedError
+            raise NotImplementedError(f"message={self.message}")
 
         to_hash = f"Event:{self.user_id}{self.date}{self.message}{self.parents}".encode("utf-8")
         self._digest = hashlib.sha256(to_hash).hexdigest()

tests/non_reg/test_sheerka_non_reg.py

@@ -1299,102 +1299,15 @@ as:
 
         assert sheerka.objvalue(res[0].body.get_value("qty")) == 2
 
+    def test_i_can_implement_implement_the_concept_and(self):
+        init = [
+            "def concept x and y as x and y",
+            "set_is_lesser(__PRECEDENCE, c:x and y:, 'Sya')",
+        ]
+        sheerka = self.init_scenario(init)
 
-class TestSheerkaNonRegFile(TestUsingFileBasedSheerka):
-    def test_i_can_def_several_concepts(self):
-        sheerka = self.get_sheerka()
-        sheerka.evaluate_user_input("def concept foo")
-
-        sheerka = self.get_sheerka()
-        res = sheerka.evaluate_user_input("def concept bar")
+        res = sheerka.evaluate_user_input("def concept foo x y where x > 1 and y > 2")
 
         assert len(res) == 1
         assert res[0].status
-        assert res[0].body.body.id == "1002"
 
-    def test_i_can_create_concept_with_bnf_definition(self):
-        sheerka = self.get_sheerka()
-        concept_a = self.bnf_concept("a", expression=OrderedChoice(StrMatch("one"), StrMatch("two")))
-        sheerka.create_new_concept(self.get_context(sheerka), concept_a)
-
-        res = sheerka.evaluate_user_input("def concept plus from bnf a ('plus' plus)?")
-        assert len(res) == 1
-        assert res[0].status
-        assert sheerka.isinstance(res[0].value, BuiltinConcepts.NEW_CONCEPT)
-
-        saved_concept = sheerka.om.current_sdp().get(SheerkaConceptManager.CONCEPTS_BY_KEY_ENTRY, "plus")
-        assert saved_concept.key == "plus"
-        assert saved_concept.get_metadata().definition == "a ('plus' plus)?"
-        assert "a" in saved_concept.values()
-        assert "plus" in saved_concept.values()
-
-        expected_bnf = Sequence(
-            ConceptExpression(concept_a, rule_name="a"),
-            Optional(Sequence(StrMatch("plus"), ConceptExpression("plus"))))
-
-        new_concept = res[0].value.body
-        assert new_concept.get_metadata().name == "plus"
-        assert new_concept.get_metadata().definition == "a ('plus' plus)?"
-        assert new_concept.get_bnf() == expected_bnf
-        assert "a" in new_concept.values()
-        assert "plus" in new_concept.values()
-
-    def test_i_can_recognize_bnf_definitions_from_separate_instances(self):
-        sheerka = self.get_sheerka()
-        concept_a = sheerka.evaluate_user_input("def concept a from bnf 'one' 'two'")[0].body.body
-
-        sheerka = self.get_sheerka()
-        res = sheerka.evaluate_user_input("one two")
-        assert len(res) == 1
-        assert res[0].status
-        assert sheerka.isinstance(res[0].value, concept_a)
-
-        # add another bnf definition
-        concept_b = sheerka.evaluate_user_input("def concept b from bnf a 'three'")[0].body.body
-
-        sheerka = self.get_sheerka()
-        res = sheerka.evaluate_user_input("one two")  # previous one still works
-        assert len(res) == 1
-        assert res[0].status
-        assert sheerka.isinstance(res[0].value, concept_a)
-
-        res = self.get_sheerka().evaluate_user_input("one two three")  # new one works
-        assert len(res) == 1
-        assert res[0].status
-        assert sheerka.isinstance(res[0].value, concept_b)
-
-        evaluated = sheerka.evaluate_concept(self.get_context(eval_body=True), res[0].value)
-        assert evaluated.body == "one two three"
-        assert evaluated.get_value("a") == sheerka.new(concept_a.key, body="one two").init_key()
-
-    def test_i_can_eval_sophisticated_bnf_concepts_after_restart(self):
-        self.init_scenario([
-            "def concept one as 1",
-            "def concept number",
-            "set_isa(one, number)",
-            "def concept twenty as 20",
-            "set_isa(twenty, number)",
-            "def concept twenties from bnf twenty number where number < 10 as twenty + number",
-            "set_isa(twenties, number)",
-            "def concept thirty as 30",
-            "set_isa(thirty, number)",
-            "def concept thirties from bnf thirty number where number < 10 as thirty + number",
-            "set_isa(thirties, number)",
-        ])
-
-        sheerka = self.get_sheerka()  # another instance
-
-        assert sheerka.evaluate_user_input("eval twenty one")[0].body == 21
-        assert sheerka.evaluate_user_input("eval thirty one")[0].body == 31
-
-    def test_i_can_pop_ontology_after_restart(self):
-        sheerka = self.get_sheerka()
-        sheerka.evaluate_user_input("push_ontology('test')")
-
-        sheerka = self.new_sheerka_instance(False)
-
-        res = sheerka.evaluate_user_input("pop_ontology()")
-
-        assert len(res) == 1
-        assert res[0].status
-        assert sheerka.isinstance(res[0].body, BuiltinConcepts.ONTOLOGY_REMOVED)

tests/non_reg/test_sheerka_non_reg_file_based.py

@@ -0,0 +1,104 @@
+from core.builtin_concepts_ids import BuiltinConcepts
+from core.sheerka.services.SheerkaConceptManager import SheerkaConceptManager
+from parsers.BnfNodeParser import OrderedChoice, StrMatch, Sequence, ConceptExpression, Optional
+from tests.TestUsingFileBasedSheerka import TestUsingFileBasedSheerka
+
+
+class TestSheerkaNonRegFile(TestUsingFileBasedSheerka):
+    def test_i_can_def_several_concepts(self):
+        sheerka = self.get_sheerka()
+        sheerka.evaluate_user_input("def concept foo")
+
+        sheerka = self.get_sheerka()
+        res = sheerka.evaluate_user_input("def concept bar")
+
+        assert len(res) == 1
+        assert res[0].status
+        assert res[0].body.body.id == "1002"
+
+    def test_i_can_create_concept_with_bnf_definition(self):
+        sheerka = self.get_sheerka()
+        concept_a = self.bnf_concept("a", expression=OrderedChoice(StrMatch("one"), StrMatch("two")))
+        sheerka.create_new_concept(self.get_context(sheerka), concept_a)
+
+        res = sheerka.evaluate_user_input("def concept plus from bnf a ('plus' plus)?")
+        assert len(res) == 1
+        assert res[0].status
+        assert sheerka.isinstance(res[0].value, BuiltinConcepts.NEW_CONCEPT)
+
+        saved_concept = sheerka.om.current_sdp().get(SheerkaConceptManager.CONCEPTS_BY_KEY_ENTRY, "plus")
+        assert saved_concept.key == "plus"
+        assert saved_concept.get_metadata().definition == "a ('plus' plus)?"
+        assert "a" in saved_concept.values()
+        assert "plus" in saved_concept.values()
+
+        expected_bnf = Sequence(
+            ConceptExpression(concept_a, rule_name="a"),
+            Optional(Sequence(StrMatch("plus"), ConceptExpression("plus"))))
+
+        new_concept = res[0].value.body
+        assert new_concept.get_metadata().name == "plus"
+        assert new_concept.get_metadata().definition == "a ('plus' plus)?"
+        assert new_concept.get_bnf() == expected_bnf
+        assert "a" in new_concept.values()
+        assert "plus" in new_concept.values()
+
+    def test_i_can_recognize_bnf_definitions_from_separate_instances(self):
+        sheerka = self.get_sheerka()
+        concept_a = sheerka.evaluate_user_input("def concept a from bnf 'one' 'two'")[0].body.body
+
+        sheerka = self.get_sheerka()
+        res = sheerka.evaluate_user_input("one two")
+        assert len(res) == 1
+        assert res[0].status
+        assert sheerka.isinstance(res[0].value, concept_a)
+
+        # add another bnf definition
+        concept_b = sheerka.evaluate_user_input("def concept b from bnf a 'three'")[0].body.body
+
+        sheerka = self.get_sheerka()
+        res = sheerka.evaluate_user_input("one two")  # previous one still works
+        assert len(res) == 1
+        assert res[0].status
+        assert sheerka.isinstance(res[0].value, concept_a)
+
+        res = self.get_sheerka().evaluate_user_input("one two three")  # new one works
+        assert len(res) == 1
+        assert res[0].status
+        assert sheerka.isinstance(res[0].value, concept_b)
+
+        evaluated = sheerka.evaluate_concept(self.get_context(eval_body=True), res[0].value)
+        assert evaluated.body == "one two three"
+        assert evaluated.get_value("a") == sheerka.new(concept_a.key, body="one two").init_key()
+
+    def test_i_can_eval_sophisticated_bnf_concepts_after_restart(self):
+        self.init_scenario([
+            "def concept one as 1",
+            "def concept number",
+            "set_isa(one, number)",
+            "def concept twenty as 20",
+            "set_isa(twenty, number)",
+            "def concept twenties from bnf twenty number where number < 10 as twenty + number",
+            "set_isa(twenties, number)",
+            "def concept thirty as 30",
+            "set_isa(thirty, number)",
+            "def concept thirties from bnf thirty number where number < 10 as thirty + number",
+            "set_isa(thirties, number)",
+        ])
+
+        sheerka = self.get_sheerka()  # another instance
+
+        assert sheerka.evaluate_user_input("eval twenty one")[0].body == 21
+        assert sheerka.evaluate_user_input("eval thirty one")[0].body == 31
+
+    def test_i_can_pop_ontology_after_restart(self):
+        sheerka = self.get_sheerka()
+        sheerka.evaluate_user_input("push_ontology('test')")
+
+        sheerka = self.new_sheerka_instance(False)
+
+        res = sheerka.evaluate_user_input("pop_ontology()")
+
+        assert len(res) == 1
+        assert res[0].status
+        assert sheerka.isinstance(res[0].body, BuiltinConcepts.ONTOLOGY_REMOVED)