fixed boolean JSOn representation

2 files changed, 44 insertions, 8 deletions

diff --git a/rdflib/plugins/serializers/hext.py b/rdflib/plugins/serializers/hext.py
index b1561959..6977e1b0 100644
--- a/rdflib/plugins/serializers/hext.py
+++ b/rdflib/plugins/serializers/hext.py
@@ -55,7 +55,7 @@ def _hex_line(triple, context):
     return "[%s, %s, %s, %s, %s, %s]\n" % (
         _iri_or_bn(triple[0]),
         _iri_or_bn(triple[1]),
-        triple[2] if type(triple[2]) == Literal else _iri_or_bn(triple[2]),
+        _literal(triple[2]) if type(triple[2]) == Literal else _iri_or_bn(triple[2]),
         (f'"{triple[2].datatype}"' if triple[2].datatype is not None else '""') if type(triple[2]) == Literal else '""',
         (f'"{triple[2].language}"' if triple[2].language is not None else '""') if type(triple[2]) == Literal else '""',
         _iri_or_bn(context)
@@ -67,3 +67,35 @@ def _iri_or_bn(i_):
         return f"\"{i_}\""
     else:
         return f"\"{i_.n3()}\""
+
+
+def _literal(i_):
+    raw_datatype = [
+        "http://www.w3.org/2001/XMLSchema#integer",
+        "http://www.w3.org/2001/XMLSchema#long",
+        "http://www.w3.org/2001/XMLSchema#int",
+        "http://www.w3.org/2001/XMLSchema#short",
+        "http://www.w3.org/2001/XMLSchema#positiveInteger",
+        "http://www.w3.org/2001/XMLSchema#negativeInteger",
+        "http://www.w3.org/2001/XMLSchema#nonPositiveInteger",
+        "http://www.w3.org/2001/XMLSchema#nonNegativeInteger",
+        "http://www.w3.org/2001/XMLSchema#unsignedLong",
+        "http://www.w3.org/2001/XMLSchema#unsignedInt",
+        "http://www.w3.org/2001/XMLSchema#unsignedShort",
+
+        "http://www.w3.org/2001/XMLSchema#float",
+        "http://www.w3.org/2001/XMLSchema#double",
+        "http://www.w3.org/2001/XMLSchema#decimal",
+
+        "http://www.w3.org/2001/XMLSchema#boolean"
+    ]
+    if hasattr(i_, "datatype"):
+        if str(i_.datatype) in raw_datatype:
+            return f"{i_}"
+        else:
+            return f"\"{i_}\""
+    else:
+        if str(i_) in ["true", "false"]:
+            return f"{i_}"
+        else:
+            return f"\"{i_}\""
diff --git a/test/test_serialize_hext.py b/test/test_serialize_hext.py
index 0d6fe992..9c6addcb 100644
--- a/test/test_serialize_hext.py
+++ b/test/test_serialize_hext.py
@@ -19,6 +19,8 @@ def test_hext_graph():
                 ex:p4 "2021-12-03"^^xsd:date ;
                 ex:p5 42 ;
                 ex:p6 "42" ;
+                ex:p7 true ;
+                ex:p8 "false"^^xsd:boolean ;
             .
             """
 
@@ -26,10 +28,13 @@ def test_hext_graph():
     out = g.serialize(format="hext")
     testing_lines = [
         [False, '["http://example.com/s1", "http://example.com/p1", "http://example.com/o2", "", ""'],
-        [False, '["http://example.com/s1", "http://example.com/p3", Object 3, "", ""'],
+        [False, '["http://example.com/s1", "http://example.com/p3", "Object 3", "", ""'],
         [False, '["http://example.com/s1", "http://example.com/p5", 42, "http://www.w3.org/2001/XMLSchema#integer", ""'],
-        [False, '"http://www.w3.org/1999/02/22-rdf-syntax-ns#value", thingy, "", ""'],
-        [False, '["http://example.com/s1", "http://example.com/p4", 2021-12-03, "http://www.w3.org/2001/XMLSchema#date", ""']
+        [False, '"http://www.w3.org/1999/02/22-rdf-syntax-ns#value", "thingy", "", ""'],
+        [False, '["http://example.com/s1", "http://example.com/p4", "2021-12-03", "http://www.w3.org/2001/XMLSchema#date", ""'],
+        [False, '["http://example.com/s1", "http://example.com/p6", "42", "", ""'],
+        [False, '["http://example.com/s1", "http://example.com/p7", true, "http://www.w3.org/2001/XMLSchema#boolean", ""'],
+        [False, '["http://example.com/s1", "http://example.com/p8", false, "http://www.w3.org/2001/XMLSchema#boolean", ""'],
     ]
     for line in out.splitlines():
         for test in testing_lines:
@@ -71,16 +76,15 @@ def test_hext_dataset():
             # default graph triples
             ex:s1 ex:p1 ex:o1 , ex:o2 .
             ex:s21 ex:p21 ex:o21 , ex:o22 .
-
            """
     d.parse(data=trig_data, format="trig")
     out = d.serialize(format="hext")
     testing_lines = [
         [False, '["http://example.com/s1", "http://example.com/p1", "http://example.com/o2", "", "", "http://example.com/g2"]'],
-        [False, '["http://example.com/s1", "http://example.com/p3", Object 3, "", "", "http://example.com/g1"]'],
+        [False, '["http://example.com/s1", "http://example.com/p3", "Object 3", "", "", "http://example.com/g1"]'],
         [False, '["http://example.com/s1", "http://example.com/p5", 42, "http://www.w3.org/2001/XMLSchema#integer", "", "http://example.com/g1"]'],
-        [False, '"http://www.w3.org/1999/02/22-rdf-syntax-ns#value", thingy, "", "", "http://example.com/g1"]'],
-        [False, '["http://example.com/s1", "http://example.com/p4", 2021-12-03, "http://www.w3.org/2001/XMLSchema#date", "", "http://example.com/g1"]']
+        [False, '"http://www.w3.org/1999/02/22-rdf-syntax-ns#value", "thingy", "", "", "http://example.com/g1"]'],
+        [False, '["http://example.com/s1", "http://example.com/p4", "2021-12-03", "http://www.w3.org/2001/XMLSchema#date", "", "http://example.com/g1"]']
     ]
     for line in out.splitlines():
         for test in testing_lines: