Release standalone PPT template workflow 0.5.0

runtime/ppt-master/scripts/pptx_shapes/xml_safety.py

@@ -0,0 +1,21 @@
+#!/usr/bin/env python3
+"""Safety checks for opaque DrawingML fragments copied between PPTX parts."""
+
+from __future__ import annotations
+
+from xml.etree import ElementTree as ET
+
+
+RELATIONSHIPS_NS = (
+    "http://schemas.openxmlformats.org/officeDocument/2006/relationships"
+)
+_RELATIONSHIP_ATTRIBUTE_PREFIX = f"{{{RELATIONSHIPS_NS}}}"
+
+
+def has_relationship_attributes(root: ET.Element) -> bool:
+    """Return whether a subtree contains any part-local relationship QName."""
+    return any(
+        attribute.startswith(_RELATIONSHIP_ATTRIBUTE_PREFIX)
+        for element in root.iter()
+        for attribute in element.attrib
+    )