diff -r 7230e1ea0b07 -r 15c3221e66af src/lib/DOMBuildingSAXContentHandler.h
--- a/src/lib/DOMBuildingSAXContentHandler.h	Sat Jun 12 18:34:19 2021 +0200
+++ b/src/lib/DOMBuildingSAXContentHandler.h	Sat Jun 12 19:15:58 2021 +0200
@@ -32,9 +32,11 @@
 public:
 
 	DOMBuildingSAXContentHandler(xmlpp::Document* document) : document(document) {
+		document->create_root_node("DOMBuildingSAXContentHandler"); // FIXME: real implementation
 	}
 
 	void abc() override {
+		document->get_root_node()->add_child("abc");
 	};
 
 	void def(int a) override {