참고소스 수정본

참고/ontocast-main/ontocast/util.py

@@ -0,0 +1,46 @@
+import hashlib
+
+from rdflib import Graph
+from rdflib.namespace import NamespaceManager
+
+
+def iri2namespace(iri: str, ontology: bool = False) -> str:
+    """Convert an IRI to a namespace string.
+
+    Args:
+        iri: The IRI to convert.
+        ontology: If True, append '#' for ontology namespace, otherwise '/'.
+
+    Returns:
+        str: The converted namespace string.
+    """
+    iri = iri.rstrip("#")
+    return f"{iri}#" if ontology else f"{iri}/"
+
+
+def get_rdflib_namespace_mappings() -> dict:
+    g = Graph()
+    ns_manager = NamespaceManager(g)
+    return {str(uri): prefix for prefix, uri in ns_manager.namespaces()}
+
+
+CONVENTIONAL_MAPPINGS = get_rdflib_namespace_mappings()
+
+
+def render_text_hash(text: str, digits: int | None = 12) -> str:
+    """Generate a SHA-256 hash for the given text.
+
+    This is the single hashing entry point for the entire codebase.
+    All modules that need to derive a hash from text should use this function
+    instead of calling ``hashlib`` directly.
+
+    Args:
+        text: The text to hash.
+        digits: Number of hex digits to return (default: 12).
+            Pass ``None`` to return the full 64-character hex digest.
+
+    Returns:
+        A hex string hash of the text.
+    """
+    digest = hashlib.sha256(text.encode()).hexdigest()
+    return digest[:digits] if digits is not None else digest