Add enum for initial state

json.h

@@ -11,6 +11,10 @@ struct json_pull_parser
 	void* user;
 };
 
+enum {
+	jpp_initial_state = 0,
+};
+
 struct json_pull_parser* json_pull_parser_new( FILE* f );
 
 void     json_pull_parser_release         ( struct json_pull_parser* jpp );