/* 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).
 * 
 * This program uses the pre 1.33 version of date_time 
 * input/output code. Typically the USE_DATE_TIME_PRE_1_33_FACET_IO
 * macro would be defined in a Jamfile but it was defined in this 
 * file for the sake of the example.
 */

#define USE_DATE_TIME_PRE_1_33_FACET_IO

#include "boost/date_time/gregorian/gregorian.hpp"
#include <iostream>

/* Define a series of char arrays for short and long name strings to be 
 * associated with date output. */
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_special_value_names[] =
{
  "NichtDatumzeit", "-unbegrenztheit", "+unbegrenztheit"
};
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"
};

const char* const us_short_month_names[] = 
{
  "Jan", "Feb", "Mar", "Apr", "May", "Jun",
  "Jul", "Aug", "Sep", "Oct", "Nov", "Dec", "NAD"
};
const char* const us_long_month_names[] =
{
  "January", "February", "March", "April", "May",
  "June", "July", "August", "September", "October",
  "November", "December", "Not-A-Date"
};
const char* const us_special_value_names[] =
{ 
  "Not-A-Date", "-infinity", "+infinity"
};
const char* const us_long_weekday_names[] =
{
  "Sunday", "Monday", "Tuesday", "Wenesday", 
  "Thursday", "Friday", "Saturday"
};
const char* const us_short_weekday_names[] =
{
  "Sun", "Mon", "Tue","Wed", "Thu", "Fri", "Sat"
};


int
main() 
{

#ifndef BOOST_DATE_TIME_NO_LOCALE

  using namespace boost::gregorian;
  typedef boost::date_time::all_date_names_put<greg_facet_config> date_facet;
  
  //create a new local
  std::locale default_locale;
  std::locale german_dates1(default_locale, 
                            new date_facet(de_short_month_names, 
                                           de_long_month_names,
                                           de_special_value_names,
                                           de_short_weekday_names,
                                           de_long_weekday_names,
                                           '.',
                                           boost::date_time::ymd_order_dmy,
                                           boost::date_time::month_as_integer));
  
  date d1(2002, Oct, 1);
  std::cout.imbue(german_dates1); 
  // output the date in German using short month names
  std::cout << d1 << std::endl; //01.10.2002
  
  std::locale german_dates2(default_locale, 
                            new date_facet(de_short_month_names, 
                                           de_long_month_names,
                                           de_special_value_names,
                                           de_short_weekday_names,
                                           de_long_weekday_names,
                                           '.',
                                           boost::date_time::ymd_order_dmy,
                                           boost::date_time::month_as_long_string));
  
  std::cout.imbue(german_dates2); 
  greg_month m = d1.month();
  std::cout << m << std::endl; //Oktober
  
  greg_weekday wd = d1.day_of_week();
  std::cout << wd << std::endl; //Dienstag


  //Numeric date format with US month/day/year ordering
  std::locale usa_dates1(default_locale, 
                         new date_facet(us_short_month_names, 
                                        us_long_month_names,
                                        us_special_value_names,
                                        us_short_weekday_names,
                                        us_long_weekday_names,
                                        '/',
                                        boost::date_time::ymd_order_us,
                                        boost::date_time::month_as_integer));
  
  std::cout.imbue(usa_dates1); 
  std::cout << d1 << std::endl; //  10/01/2002
  //English names, iso order (year-month-day), '-' separator
  std::locale usa_dates2(default_locale, 
                         new date_facet(us_short_month_names, 
                                        us_long_month_names,
                                        us_special_value_names,
                                        us_short_weekday_names,
                                        us_long_weekday_names,
                                        '-',
                                        boost::date_time::ymd_order_iso,
                                        boost::date_time::month_as_short_string));

  std::cout.imbue(usa_dates2); 
  std::cout << d1 << std::endl; //  2002-Oct-01
  
  
#else 
  std::cout << "Sorry, localization is not supported by this compiler/library" 
            << std::endl;
#endif
  return 0;

}

/*  Copyright 2001-2004: CrystalClear Software, Inc
 *  http://www.crystalclearsoftware.com
 *
 *  Subject to the Boost Software License, Version 1.0.
 * (See accompanying file LICENSE-1.0 or http://www.boost.org/LICENSE-1.0)
 */