/* The following shows the creation of a facet for the output of * dates in German (please forgive me for any errors in my German -- * I'm not a native speaker). */ #include "boost/date_time/gregorian/gregorian.hpp" #include #include /* Define a series of char arrays for short and long name strings * to be associated with German date output (US names will be * retrieved from the locale). */ const char* const de_short_month_names[] = { "Jan", "Feb", "Mar", "Apr", "Mai", "Jun", "Jul", "Aug", "Sep", "Okt", "Nov", "Dez", "NAM" }; const char* const de_long_month_names[] = { "Januar", "Februar", "Marz", "April", "Mai", "Juni", "Juli", "August", "September", "Oktober", "November", "Dezember", "NichtDerMonat" }; const char* const de_long_weekday_names[] = { "Sonntag", "Montag", "Dienstag", "Mittwoch", "Donnerstag", "Freitag", "Samstag" }; const char* const de_short_weekday_names[] = { "Son", "Mon", "Die","Mit", "Don", "Fre", "Sam" }; int main() { using namespace boost::gregorian; // create some gregorian objects to output date d1(2002, Oct, 1); greg_month m = d1.month(); greg_weekday wd = d1.day_of_week(); // create a facet and a locale for German dates date_facet* german_facet = new date_facet(); std::cout.imbue(std::locale(std::locale::classic(), german_facet)); // create the German name collections date_facet::input_collection_type short_months, long_months, short_weekdays, long_weekdays; std::copy(&de_short_month_names[0], &de_short_month_names[11], std::back_inserter(short_months)); std::copy(&de_long_month_names[0], &de_long_month_names[11], std::back_inserter(long_months)); std::copy(&de_short_weekday_names[0], &de_short_weekday_names[6], std::back_inserter(short_weekdays)); std::copy(&de_long_weekday_names[0], &de_long_weekday_names[6], std::back_inserter(long_weekdays)); // replace the default names with ours // NOTE: date_generators and special_values were not replaced as // they are not used in this example german_facet->short_month_names(short_months); german_facet->long_month_names(long_months); german_facet->short_weekday_names(short_weekdays); german_facet->long_weekday_names(long_weekdays); // output the date in German using short month names german_facet->format("%d.%m.%Y"); std::cout << d1 << std::endl; //01.10.2002 german_facet->month_format("%B"); std::cout << m << std::endl; //Oktober german_facet->weekday_format("%A"); std::cout << wd << std::endl; //Dienstag // Output the same gregorian objects using US names date_facet* us_facet = new date_facet(); std::cout.imbue(std::locale(std::locale::classic(), us_facet)); us_facet->format("%m/%d/%Y"); std::cout << d1 << std::endl; // 10/01/2002 // English names, iso order (year-month-day), '-' separator us_facet->format("%Y-%b-%d"); std::cout << d1 << std::endl; // 2002-Oct-01 return 0; } /* Copyright 2001-2005: CrystalClear Software, Inc * http://www.crystalclearsoftware.com * * Subject to the Boost Software License, Version 1.0. * (See accompanying file LICENSE_1_0.txt or http://www.boost.org/LICENSE_1_0.txt) */