structure, layout, parser and its modules

goods/goods.h

@@ -0,0 +1,24 @@
+#ifndef GOODS_H
+#define GOODS_H
+
+#include <string>
+
+class Goods
+{
+    std::string name;
+    double quantity; // by weight or by the piece
+    double price_per_unit;
+public:
+    Goods(std::string, double, double);
+    double calculate_total_price();
+
+    std::string get_name();
+    double get_quantity();
+    double get_price_per_unit();
+
+    void set_name(std::string);
+    void set_quantity(double);
+    void set_price_per_unit(double);
+};
+
+#endif // GOODS_H