Translation: How to handle different position of object in sentences?

You might want to read http://www.gnu.org/software/gettext/manual/gettext.html#c_002dformat-Flag

Thanks, but I still do not know how I would need to change the code, since this was about printf. Or is somthing similar possible for errorBox.setWarning etc?

I managed to use placeholders:

    if(medias.size < 10) { // say we could not find similar medias
     errorBox.show_icon = true;
                     string satzii = _("BeatBox (konnte) could not find songs similar to %1$s by %2$s.\n").printf ("<b>" + lm.media_info.media.title.replace("&", "&amp;") + "</b>", "<b>" + lm.media_info.media.artist.replace("&", "&amp;") + "</b>");
     errorBox.setWarning("<span weight=\"bold\" size=\"larger\">" + _("No similar songs found") + "\n</span>\n" + satzii + _("Make sure all song info is correct and you are connected to the Internet.\nSome songs may not have matches."), Justification.LEFT);
     errorBox.show_all();
     list.hide();
     albumView.hide();
     stdout.printf("2\n");

     in_update = false;
     return;
    }
But the translation doesn't show up in BeatBox.
I already had such an issue with the SmartPlaylistEditor, but maybe could tell me what would need to be done.