+ struct string config_string;
+
+ ds_init_empty (&config_string);
+
+ ds_put_format (&config_string,
+ "gui:ascii:screen:squeeze=on headers=off top-margin=0 "
+ "bottom-margin=0 paginate=off length=auto width=auto "
+ "emphasis=none "
+ "output-file=\"%s\" append=yes", filename);