1 files changed, 28 insertions, 0 deletions
diff --git a/src/xml/xml_pi_rule.cc b/src/xml/xml_pi_rule.cc
new file mode 100644
index 0000000..071b8fd
--- /dev/null
+++ b/src/xml/xml_pi_rule.cc
@@ -0,0 +1,28 @@
+#include "image_io/xml/xml_pi_rule.h"
+
+#include "image_io/xml/xml_handler.h"
+#include "image_io/xml/xml_token_context.h"
+
+namespace photos_editing_formats {
+namespace image_io {
+
+XmlPiRule::XmlPiRule() : XmlPiRule(kFirstStartPoint) {}
+
+XmlPiRule::XmlPiRule(XmlRule::StartPoint start_point) : XmlRule("PI") {
+  // <? ... ?>
+  AddLiteralTerminal("<?");
+  AddThroughLiteralTerminal("?>").WithAction(
+      [&](const XmlActionContext& context) { return HandlePiValue(context); });
+  if (start_point == kSecondStartPoint) {
+    SetTerminalIndex(1);
+  }
+}
+
+DataMatchResult XmlPiRule::HandlePiValue(const XmlActionContext& context) {
+  XmlTokenContext token_context(context);
+  DataMatchResult result = context.GetHandler()->Pi(token_context);
+  return result;
+}
+
+}  // namespace image_io
+}  // namespace photos_editing_formats