#include #include #include #include #include void dump_tree(Node& node) { static int indent = 0; for (int i = 0; i < indent; ++i) printf(" "); if (node.is_document()) { printf("*Document*\n"); } else if (node.is_element()) { printf("<%s>\n", static_cast(node).tag_name().characters()); } else if (node.is_text()) { printf("\"%s\"\n", static_cast(node).data().characters()); } ++indent; if (node.is_parent_node()) { static_cast(node).for_each_child([](Node& child) { dump_tree(child); }); } --indent; }