--- /dev/null	Thu Jan 01 00:00:00 1970 +0000
+++ b/dep/pugixml/docs/samples/traverse_walker.cpp	Tue Sep 26 12:37:08 2023 -0400
@@ -0,0 +1,35 @@
+#include "pugixml.hpp"
+
+#include <iostream>
+
+const char* node_types[] =
+{
+    "null", "document", "element", "pcdata", "cdata", "comment", "pi", "declaration"
+};
+
+// tag::impl[]
+struct simple_walker: pugi::xml_tree_walker
+{
+    virtual bool for_each(pugi::xml_node& node)
+    {
+        for (int i = 0; i < depth(); ++i) std::cout << "  "; // indentation
+
+        std::cout << node_types[node.type()] << ": name='" << node.name() << "', value='" << node.value() << "'\n";
+
+        return true; // continue traversal
+    }
+};
+// end::impl[]
+
+int main()
+{
+    pugi::xml_document doc;
+    if (!doc.load_file("tree.xml")) return -1;
+
+    // tag::traverse[]
+    simple_walker walker;
+    doc.traverse(walker);
+    // end::traverse[]
+}
+
+// vim:et