BigUpdate

md2fodt/escape.py

@@ -0,0 +1,22 @@
+"""XML escape helpers for FODT output."""
+
+from __future__ import annotations
+
+import re
+from xml.sax.saxutils import escape as _xml_escape
+
+
+def escape_text(s: str) -> str:
+    if not s:
+        return ""
+    return _xml_escape(s, {"\"": """, "'": "'"})
+
+
+_LABEL_RE = re.compile(r"[^\w\-]+", re.UNICODE)
+
+
+def xml_id(name: str | None, prefix: str = "obj") -> str:
+    if not name:
+        return prefix
+    cleaned = _LABEL_RE.sub("-", name.strip()).strip("-")
+    return f"{prefix}-{cleaned or 'x'}"