xo-reader: wip: stub for lambda expression

include/xo/reader/lambda_xs.hpp

@@ -0,0 +1,26 @@
+/** @file lambda_xs.hpp
+ *
+ *  Author: Roland Conybeare
+ **/
+
+#pragma once
+
+#include "exprstate.hpp"
+//#include <cstdint>
+
+namespace xo {
+    namespace scm {
+        /** @class lambda_xs
+         *  @brief parsing state-machine for a lambda-expression
+         **/
+        class lambda_xs : public exprstate {
+        public:
+            lambda_xs();
+
+        private:
+        };
+    } /*namespace scm*/
+} /*namespace xo*/
+
+
+/** end lambda_xs.hpp **/