Defines String::ucompose(fmt, arg...) for easy, i18n-friendly composition of strings with Gtkmm >= 1.3.* (see www.gtkmm.org). Uses Glib::ustring instead of std::string which doesn't work with Gtkmm due to character encoding troubles with stringstreams. Version 1.0.5. Copyright (c) 2002, 03, 04, 07 Ole Laursen . This library is free software; you can redistribute it and/or modify it under the terms of the GNU Lesser General Public License as published by the Free Software Foundation; either version 2.1 of the License, or (at your option) any later version. Basic usage is like: String::ucompose("This is a %1x%2 matrix.", rows, cols); See http://people.iola.dk/olau/compose/ for more details.