1 files changed, 49 insertions, 0 deletions
diff --git a/benchmarks/pugixml/pubmed_len.cpp b/benchmarks/pugixml/pubmed_len.cpp
new file mode 100644
index 0000000..ec9e16c
--- /dev/null
+++ b/benchmarks/pugixml/pubmed_len.cpp
@@ -0,0 +1,49 @@
+#include "pugixml.hpp"
+#include <cstring>
+
+inline bool is_content_root(const char* name) {
+    return std::strcmp(name, "abstract") == 0 || std::strcmp(name, "body") == 0;
+}
+
+// Sums length of all node_pcdata descendants (CDATA excluded to match
+// quick-xml's Event::Text-only accounting).
+size_t sum_pcdata(const pugi::xml_node& node) {
+    size_t total = 0;
+    for (pugi::xml_node child = node.first_child(); child; child = child.next_sibling()) {
+        if (child.type() == pugi::node_pcdata) {
+            total += std::strlen(child.value());
+        } else if (child.type() == pugi::node_element) {
+            total += sum_pcdata(child);
+        }
+    }
+    return total;
+}
+
+// Searches for <abstract>/<body> anywhere in the tree; once found, all
+// descendant text counts regardless of further nesting.
+size_t walk(const pugi::xml_node& node) {
+    size_t total = 0;
+    for (pugi::xml_node child = node.first_child(); child; child = child.next_sibling()) {
+        if (child.type() != pugi::node_element) continue;
+        if (is_content_root(child.name())) {
+            total += sum_pcdata(child);
+        } else {
+            total += walk(child);
+        }
+    }
+    return total;
+}
+
+size_t pubmed_len(char* buffer, size_t len) {
+    pugi::xml_document doc;
+    unsigned int flags = pugi::parse_default | pugi::parse_escapes;
+    doc.load_buffer_inplace(buffer, len, flags);
+    return walk(doc);
+}
+
+size_t pubmed_len_with_entities(char* buffer, size_t len) {
+    pugi::xml_document doc;
+    unsigned int flags = pugi::parse_default;
+    doc.load_buffer_inplace(buffer, len, flags);
+    return walk(doc);
+}