Chris@16: #ifndef DATE_TIME_DATE_FORMATTING_LOCALES_HPP___
Chris@16: #define DATE_TIME_DATE_FORMATTING_LOCALES_HPP___
Chris@16: 
Chris@16: /* Copyright (c) 2002,2003 CrystalClear Software, Inc.
Chris@16:  * Use, modification and distribution is subject to the
Chris@16:  * Boost Software License, Version 1.0. (See accompanying
Chris@16:  * file LICENSE_1_0.txt or http://www.boost.org/LICENSE_1_0.txt)
Chris@16:  * Author: Jeff Garland, Bart Garst
Chris@101:  * $Date$
Chris@16:  */
Chris@16: 
Chris@16: 
Chris@16: #include "boost/date_time/locale_config.hpp" // set BOOST_DATE_TIME_NO_LOCALE
Chris@16: 
Chris@16: #ifndef BOOST_DATE_TIME_NO_LOCALE
Chris@16: 
Chris@16: #include "boost/date_time/iso_format.hpp"
Chris@16: #include "boost/date_time/date_names_put.hpp"
Chris@16: #include "boost/date_time/parse_format_base.hpp"
Chris@16: //#include <string>
Chris@16: #include <sstream>
Chris@16: #include <iomanip>
Chris@16: 
Chris@16: 
Chris@16: namespace boost {
Chris@16: namespace date_time {
Chris@16: 
Chris@16:   //! Formats a month as as string into an ostream
Chris@16:   template<class facet_type,
Chris@16:            class charT = char>
Chris@16:   class ostream_month_formatter
Chris@16:   {
Chris@16:   public:
Chris@16:     typedef typename facet_type::month_type month_type;
Chris@16:     typedef std::basic_ostream<charT> ostream_type;
Chris@16: 
Chris@16:     //! Formats a month as as string into an output iterator
Chris@16:     static void format_month(const month_type& month,
Chris@16:                              ostream_type& os,
Chris@16:                              const facet_type& f)
Chris@16:     {
Chris@16: 
Chris@16:       switch (f.month_format())
Chris@16:       {
Chris@16:         case month_as_short_string:
Chris@16:         {
Chris@16:           std::ostreambuf_iterator<charT> oitr(os);
Chris@16:           f.put_month_short(oitr, month.as_enum());
Chris@16:           break;
Chris@16:         }
Chris@16:         case month_as_long_string:
Chris@16:         {
Chris@16:           std::ostreambuf_iterator<charT> oitr(os);
Chris@16:           f.put_month_long(oitr, month.as_enum());
Chris@16:           break;
Chris@16:         }
Chris@16:         case month_as_integer:
Chris@16:         {
Chris@16:           charT fill_char = '0';
Chris@16:           os << std::setw(2) << std::setfill(fill_char) << month.as_number();
Chris@16:           break;
Chris@16:         }
Chris@16: 
Chris@16:       }
Chris@16:     } // format_month
Chris@16: 
Chris@16:   };
Chris@16: 
Chris@16: 
Chris@16:   //! Formats a weekday
Chris@16:   template<class weekday_type,
Chris@16:            class facet_type,
Chris@16:            class charT = char>
Chris@16:   class ostream_weekday_formatter
Chris@16:   {
Chris@16:   public:
Chris@16:     typedef typename facet_type::month_type month_type;
Chris@16:     typedef std::basic_ostream<charT> ostream_type;
Chris@16: 
Chris@16:     //! Formats a month as as string into an output iterator
Chris@16:     static void format_weekday(const weekday_type& wd,
Chris@16:                                ostream_type& os,
Chris@16:                                const facet_type& f,
Chris@16:                                bool  as_long_string)
Chris@16:     {
Chris@16: 
Chris@16:       std::ostreambuf_iterator<charT> oitr(os);
Chris@16:       if (as_long_string) {
Chris@16:         f.put_weekday_long(oitr, wd.as_enum());
Chris@16:       }
Chris@16:       else {
Chris@16:         f.put_weekday_short(oitr, wd.as_enum());
Chris@16:       }
Chris@16: 
Chris@16:     } // format_weekday
Chris@16: 
Chris@16:   };
Chris@16: 
Chris@16: 
Chris@16:   //! Convert ymd to a standard string formatting policies
Chris@16:   template<class ymd_type,
Chris@16:            class facet_type,
Chris@16:            class charT = char>
Chris@16:   class ostream_ymd_formatter
Chris@16:   {
Chris@16:   public:
Chris@16:     typedef typename ymd_type::month_type month_type;
Chris@16:     typedef ostream_month_formatter<facet_type, charT> month_formatter_type;
Chris@16:     typedef std::basic_ostream<charT> ostream_type;
Chris@16:     typedef std::basic_string<charT> foo_type;
Chris@16: 
Chris@16:     //! Convert ymd to a standard string formatting policies
Chris@16:     /*! This is standard code for handling date formatting with
Chris@16:      *  year-month-day based date information.  This function
Chris@16:      *  uses the format_type to control whether the string will
Chris@16:      *  contain separator characters, and if so what the character
Chris@16:      *  will be.  In addtion, it can format the month as either
Chris@16:      *  an integer or a string as controled by the formatting
Chris@16:      *  policy
Chris@16:      */
Chris@16:     //     static string_type ymd_to_string(ymd_type ymd)
Chris@16: //     {
Chris@16: //       std::ostringstream ss;
Chris@16: //       facet_type dnp;
Chris@16: //       ymd_put(ymd, ss, dnp);
Chris@16: //       return ss.str();
Chris@16: //       }
Chris@16: 
Chris@16: 
Chris@16:     // Put ymd to ostream -- part of ostream refactor
Chris@16:     static void ymd_put(ymd_type ymd,
Chris@16:                         ostream_type& os,
Chris@16:                         const facet_type& f)
Chris@16:     {
Chris@16:       std::ostreambuf_iterator<charT> oitr(os);
Chris@16:       charT fill_char = '0';
Chris@16:       switch (f.date_order()) {
Chris@16:         case ymd_order_iso: {
Chris@16:           os << ymd.year;
Chris@16:           if (f.has_date_sep_chars()) {
Chris@16:             f.month_sep_char(oitr);
Chris@16:           }
Chris@16:           month_formatter_type::format_month(ymd.month, os, f);
Chris@16:           if (f.has_date_sep_chars()) {
Chris@16:             f.day_sep_char(oitr);
Chris@16:           }
Chris@16:           os  << std::setw(2) << std::setfill(fill_char)
Chris@16:               << ymd.day;
Chris@16:           break;
Chris@16:         }
Chris@16:         case ymd_order_us: {
Chris@16:           month_formatter_type::format_month(ymd.month, os, f);
Chris@16:           if (f.has_date_sep_chars()) {
Chris@16:           f.day_sep_char(oitr);
Chris@16:           }
Chris@16:           os  << std::setw(2) << std::setfill(fill_char)
Chris@16:             << ymd.day;
Chris@16:           if (f.has_date_sep_chars()) {
Chris@16:             f.month_sep_char(oitr);
Chris@16:           }
Chris@16:           os << ymd.year;
Chris@16:           break;
Chris@16:         }
Chris@16:         case ymd_order_dmy: {
Chris@16:           os  << std::setw(2) << std::setfill(fill_char)
Chris@16:               << ymd.day;
Chris@16:           if (f.has_date_sep_chars()) {
Chris@16:             f.day_sep_char(oitr);
Chris@16:           }
Chris@16:           month_formatter_type::format_month(ymd.month, os, f);
Chris@16:           if (f.has_date_sep_chars()) {
Chris@16:             f.month_sep_char(oitr);
Chris@16:           }
Chris@16:           os << ymd.year;
Chris@16:           break;
Chris@16:         }
Chris@16:       }
Chris@16:     }
Chris@16:   };
Chris@16: 
Chris@16: 
Chris@16:   //! Convert a date to string using format policies
Chris@16:   template<class date_type,
Chris@16:            class facet_type,
Chris@16:            class charT = char>
Chris@16:   class ostream_date_formatter
Chris@16:   {
Chris@16:   public:
Chris@16:     typedef std::basic_ostream<charT> ostream_type;
Chris@16:     typedef typename date_type::ymd_type ymd_type;
Chris@16: 
Chris@16:     //! Put date into an ostream
Chris@16:     static void date_put(const date_type& d,
Chris@16:                          ostream_type& os,
Chris@16:                          const facet_type& f)
Chris@16:     {
Chris@16:       special_values sv = d.as_special();
Chris@16:       if (sv == not_special) {
Chris@16:         ymd_type ymd = d.year_month_day();
Chris@16:         ostream_ymd_formatter<ymd_type, facet_type, charT>::ymd_put(ymd, os, f);
Chris@16:       }
Chris@16:       else { // output a special value
Chris@16:         std::ostreambuf_iterator<charT> coi(os);
Chris@16:         f.put_special_value(coi, sv);
Chris@16:       }
Chris@16:     }
Chris@16: 
Chris@16: 
Chris@16:     //! Put date into an ostream
Chris@16:     static void date_put(const date_type& d,
Chris@16:                          ostream_type& os)
Chris@16:     {
Chris@16:       //retrieve the local from the ostream
Chris@16:       std::locale locale = os.getloc();
Chris@16:       if (std::has_facet<facet_type>(locale)) {
Chris@16:         const facet_type& f = std::use_facet<facet_type>(locale);
Chris@16:         date_put(d, os, f);
Chris@16:       }
Chris@16:       else {
Chris@16:         //default to something sensible if no facet installed
Chris@16:         facet_type default_facet;
Chris@16:         date_put(d, os, default_facet);
Chris@16:       }
Chris@16:     } // date_to_ostream 
Chris@16:   }; //class date_formatter
Chris@16: 
Chris@16: 
Chris@16: } } //namespace date_time
Chris@16: 
Chris@16: #endif
Chris@16: 
Chris@16: #endif
Chris@16: