xo-reader: refactor: + expect_expr_xs cls [wip]

include/xo/reader/expect_expr_xs.hpp

@@ -0,0 +1,29 @@
+/* file expect_expr_xs.hpp
+ *
+ * author: Roland Conybeare, Aug 2024
+ */
+
+#pragma once
+
+#include "exprstate.hpp"
+
+namespace xo {
+    namespace scm {
+
+        /** @class expect_expr_xs
+         *  @brief state machine to expect + capture an expression
+         **/
+        class expect_expr_xs : public exprstate {
+        public:
+            expect_expr_xs();
+
+            static std::unique_ptr<expect_expr_xs> expect_rhs_expression();
+
+        private:
+        };
+
+    } /*namespace scm*/
+} /*namespace xo*/
+
+
+/* end expect_expr_xs.hpp */