implemented switch ... case .. default ..

lib/parse-prv.h

@@ -41,7 +41,9 @@ enum hawk_kwid_t
 	HAWK_KWID_BEGIN,
 	HAWK_KWID_END,
 	HAWK_KWID_BREAK,
+	HAWK_KWID_CASE,
 	HAWK_KWID_CONTINUE,
+	HAWK_KWID_DEFAULT,
 	HAWK_KWID_DELETE,
 	HAWK_KWID_DO,
 	HAWK_KWID_ELSE,
@@ -58,6 +60,7 @@ enum hawk_kwid_t
 	HAWK_KWID_PRINT,
 	HAWK_KWID_PRINTF,
 	HAWK_KWID_RETURN,
+	HAWK_KWID_SWITCH,
 	HAWK_KWID_WHILE
 };