| #ifndef DATE_TIME_DATE_FORMATTING_LOCALES_HPP___ |
| #define DATE_TIME_DATE_FORMATTING_LOCALES_HPP___ |
| |
| /* Copyright (c) 2002,2003 CrystalClear Software, Inc. |
| * Use, modification and distribution is 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) |
| * Author: Jeff Garland, Bart Garst |
| * $Date: 2008-02-27 15:00:24 -0500 (Wed, 27 Feb 2008) $ |
| */ |
| |
| |
| #include "boost/date_time/locale_config.hpp" // set BOOST_DATE_TIME_NO_LOCALE |
| |
| #ifndef BOOST_DATE_TIME_NO_LOCALE |
| |
| #include "boost/date_time/iso_format.hpp" |
| #include "boost/date_time/date_names_put.hpp" |
| #include "boost/date_time/parse_format_base.hpp" |
| //#include <string> |
| #include <sstream> |
| #include <iomanip> |
| |
| |
| namespace boost { |
| namespace date_time { |
| |
| //! Formats a month as as string into an ostream |
| template<class facet_type, |
| class charT = char> |
| class ostream_month_formatter |
| { |
| public: |
| typedef typename facet_type::month_type month_type; |
| typedef std::basic_ostream<charT> ostream_type; |
| |
| //! Formats a month as as string into an output iterator |
| static void format_month(const month_type& month, |
| ostream_type& os, |
| const facet_type& f) |
| { |
| |
| switch (f.month_format()) |
| { |
| case month_as_short_string: |
| { |
| std::ostreambuf_iterator<charT> oitr(os); |
| f.put_month_short(oitr, month.as_enum()); |
| break; |
| } |
| case month_as_long_string: |
| { |
| std::ostreambuf_iterator<charT> oitr(os); |
| f.put_month_long(oitr, month.as_enum()); |
| break; |
| } |
| case month_as_integer: |
| { |
| charT fill_char = '0'; |
| os << std::setw(2) << std::setfill(fill_char) << month.as_number(); |
| break; |
| } |
| |
| } |
| } // format_month |
| |
| }; |
| |
| |
| //! Formats a weekday |
| template<class weekday_type, |
| class facet_type, |
| class charT = char> |
| class ostream_weekday_formatter |
| { |
| public: |
| typedef typename facet_type::month_type month_type; |
| typedef std::basic_ostream<charT> ostream_type; |
| |
| //! Formats a month as as string into an output iterator |
| static void format_weekday(const weekday_type& wd, |
| ostream_type& os, |
| const facet_type& f, |
| bool as_long_string) |
| { |
| |
| std::ostreambuf_iterator<charT> oitr(os); |
| if (as_long_string) { |
| f.put_weekday_long(oitr, wd.as_enum()); |
| } |
| else { |
| f.put_weekday_short(oitr, wd.as_enum()); |
| } |
| |
| } // format_weekday |
| |
| }; |
| |
| |
| //! Convert ymd to a standard string formatting policies |
| template<class ymd_type, |
| class facet_type, |
| class charT = char> |
| class ostream_ymd_formatter |
| { |
| public: |
| typedef typename ymd_type::month_type month_type; |
| typedef ostream_month_formatter<facet_type, charT> month_formatter_type; |
| typedef std::basic_ostream<charT> ostream_type; |
| typedef std::basic_string<charT> foo_type; |
| |
| //! Convert ymd to a standard string formatting policies |
| /*! This is standard code for handling date formatting with |
| * year-month-day based date information. This function |
| * uses the format_type to control whether the string will |
| * contain separator characters, and if so what the character |
| * will be. In addtion, it can format the month as either |
| * an integer or a string as controled by the formatting |
| * policy |
| */ |
| // static string_type ymd_to_string(ymd_type ymd) |
| // { |
| // std::ostringstream ss; |
| // facet_type dnp; |
| // ymd_put(ymd, ss, dnp); |
| // return ss.str(); |
| // } |
| |
| |
| // Put ymd to ostream -- part of ostream refactor |
| static void ymd_put(ymd_type ymd, |
| ostream_type& os, |
| const facet_type& f) |
| { |
| std::ostreambuf_iterator<charT> oitr(os); |
| charT fill_char = '0'; |
| switch (f.date_order()) { |
| case ymd_order_iso: { |
| os << ymd.year; |
| if (f.has_date_sep_chars()) { |
| f.month_sep_char(oitr); |
| } |
| month_formatter_type::format_month(ymd.month, os, f); |
| if (f.has_date_sep_chars()) { |
| f.day_sep_char(oitr); |
| } |
| os << std::setw(2) << std::setfill(fill_char) |
| << ymd.day; |
| break; |
| } |
| case ymd_order_us: { |
| month_formatter_type::format_month(ymd.month, os, f); |
| if (f.has_date_sep_chars()) { |
| f.day_sep_char(oitr); |
| } |
| os << std::setw(2) << std::setfill(fill_char) |
| << ymd.day; |
| if (f.has_date_sep_chars()) { |
| f.month_sep_char(oitr); |
| } |
| os << ymd.year; |
| break; |
| } |
| case ymd_order_dmy: { |
| os << std::setw(2) << std::setfill(fill_char) |
| << ymd.day; |
| if (f.has_date_sep_chars()) { |
| f.day_sep_char(oitr); |
| } |
| month_formatter_type::format_month(ymd.month, os, f); |
| if (f.has_date_sep_chars()) { |
| f.month_sep_char(oitr); |
| } |
| os << ymd.year; |
| break; |
| } |
| } |
| } |
| }; |
| |
| |
| //! Convert a date to string using format policies |
| template<class date_type, |
| class facet_type, |
| class charT = char> |
| class ostream_date_formatter |
| { |
| public: |
| typedef std::basic_ostream<charT> ostream_type; |
| typedef typename date_type::ymd_type ymd_type; |
| |
| //! Put date into an ostream |
| static void date_put(const date_type& d, |
| ostream_type& os, |
| const facet_type& f) |
| { |
| special_values sv = d.as_special(); |
| if (sv == not_special) { |
| ymd_type ymd = d.year_month_day(); |
| ostream_ymd_formatter<ymd_type, facet_type, charT>::ymd_put(ymd, os, f); |
| } |
| else { // output a special value |
| std::ostreambuf_iterator<charT> coi(os); |
| f.put_special_value(coi, sv); |
| } |
| } |
| |
| |
| //! Put date into an ostream |
| static void date_put(const date_type& d, |
| ostream_type& os) |
| { |
| //retrieve the local from the ostream |
| std::locale locale = os.getloc(); |
| if (std::has_facet<facet_type>(locale)) { |
| const facet_type& f = std::use_facet<facet_type>(locale); |
| date_put(d, os, f); |
| } |
| else { |
| //default to something sensible if no facet installed |
| facet_type default_facet; |
| date_put(d, os, default_facet); |
| } |
| } // date_to_ostream |
| }; //class date_formatter |
| |
| |
| } } //namespace date_time |
| |
| #endif |
| |
| #endif |
| |