Improve JSON-LD context parsing (#61)

Following w3c/json-ld-syntax#329 and
w3c/json-ld-syntax#329, this PR updates the
processing of JSON-LD contexts to handle when there are dictionaries.

src/curies/api.py

@@ -624,7 +624,13 @@ def from_jsonld(cls, data: LocationOr[Dict[str, Any]]) -> "Converter":
         >>> converter = Converter.from_jsonld(url)
         >>> "rdf" in converter.prefix_map
         """
-        return cls.from_prefix_map(_prepare(data)["@context"])
+        prefix_map = {}
+        for key, value in _prepare(data)["@context"].items():
+            if isinstance(value, str):
+                prefix_map[key] = value
+            elif isinstance(value, dict) and value.get("@prefix") is True:
+                prefix_map[key] = value["@id"]
+        return cls.from_prefix_map(prefix_map)
 
     @classmethod
     def from_jsonld_github(

tests/test_api.py

@@ -145,6 +145,24 @@ def test_bioregistry(self):
         self.assertIn("chebi", c.prefix_map)
         self.assertNotIn("CHEBI", c.prefix_map)
 
+    def test_jsonld(self):
+        """Test parsing JSON-LD context."""
+        context = {
+            "@context": {
+                "hello": "https://example.org/hello:",
+                "CHEBI": {
+                    "@prefix": True,
+                    "@id": "http://purl.obolibrary.org/CHEBI_",
+                },
+                "nope": {
+                    "nope": "nope",
+                },
+            },
+        }
+        converter = Converter.from_jsonld(context)
+        self.assertIn("hello", converter.prefix_map)
+        self.assertIn("CHEBI", converter.prefix_map)
+
     def test_from_github(self):
         """Test getting a JSON-LD map from GitHub."""
         with self.assertRaises(ValueError):