| #ifndef _DATE_TIME_DATE_GENERATOR_FORMATTER__HPP___ |
| #define _DATE_TIME_DATE_GENERATOR_FORMATTER__HPP___ |
| |
| /* Copyright (c) 2004 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: 2008-11-13 14:05:31 -0500 (Thu, 13 Nov 2008) $ |
| */ |
| |
| #include <iostream> |
| #include <string> |
| #include <vector> |
| #include <algorithm> |
| #include "boost/date_time/date_generators.hpp" |
| |
| namespace boost { |
| namespace date_time { |
| |
| //! Formats date_generators for output |
| /*! Formatting of date_generators follows specific orders for the |
| * various types of date_generators. |
| * - partial_date => "dd Month" |
| * - nth_day_of_the_week_in_month => "nth weekday of month" |
| * - first_day_of_the_week_in_month => "first weekday of month" |
| * - last_day_of_the_week_in_month => "last weekday of month" |
| * - first_day_of_the_week_after => "weekday after" |
| * - first_day_of_the_week_before => "weekday before" |
| * While the order of the elements in these phrases cannot be changed, |
| * the elements themselves can be. Weekday and Month get their formats |
| * and names from the date_facet. The remaining elements are stored in |
| * the date_generator_formatter and can be customized upon construction |
| * or via a member function. The default elements are those shown in the |
| * examples above. |
| */ |
| template <class date_type, class CharT, class OutItrT = std::ostreambuf_iterator<CharT, std::char_traits<CharT> > > |
| class date_generator_formatter { |
| public: |
| typedef partial_date<date_type> partial_date_type; |
| typedef nth_kday_of_month<date_type> nth_kday_type; |
| typedef first_kday_of_month<date_type> first_kday_type; |
| typedef last_kday_of_month<date_type> last_kday_type; |
| typedef first_kday_after<date_type> kday_after_type; |
| typedef first_kday_before<date_type> kday_before_type; |
| |
| typedef CharT char_type; |
| typedef std::basic_string<char_type> string_type; |
| typedef std::vector<string_type> collection_type; |
| static const char_type first_string[6]; |
| static const char_type second_string[7]; |
| static const char_type third_string[6]; |
| static const char_type fourth_string[7]; |
| static const char_type fifth_string[6]; |
| static const char_type last_string[5]; |
| static const char_type before_string[8]; |
| static const char_type after_string[6]; |
| static const char_type of_string[3]; |
| |
| enum phrase_elements {first=0, second, third, fourth, fifth, last, |
| before, after, of, number_of_phrase_elements}; |
| |
| //! Default format elements used |
| date_generator_formatter() |
| { |
| phrase_strings.reserve(number_of_phrase_elements); |
| phrase_strings.push_back(string_type(first_string)); |
| phrase_strings.push_back(string_type(second_string)); |
| phrase_strings.push_back(string_type(third_string)); |
| phrase_strings.push_back(string_type(fourth_string)); |
| phrase_strings.push_back(string_type(fifth_string)); |
| phrase_strings.push_back(string_type(last_string)); |
| phrase_strings.push_back(string_type(before_string)); |
| phrase_strings.push_back(string_type(after_string)); |
| phrase_strings.push_back(string_type(of_string)); |
| } |
| |
| //! Constructor that allows for a custom set of phrase elements |
| date_generator_formatter(const string_type& first_str, |
| const string_type& second_str, |
| const string_type& third_str, |
| const string_type& fourth_str, |
| const string_type& fifth_str, |
| const string_type& last_str, |
| const string_type& before_str, |
| const string_type& after_str, |
| const string_type& of_str) |
| { |
| phrase_strings.reserve(number_of_phrase_elements); |
| phrase_strings.push_back(first_str); |
| phrase_strings.push_back(second_str); |
| phrase_strings.push_back(third_str); |
| phrase_strings.push_back(fourth_str); |
| phrase_strings.push_back(fifth_str); |
| phrase_strings.push_back(last_str); |
| phrase_strings.push_back(before_str); |
| phrase_strings.push_back(after_str); |
| phrase_strings.push_back(of_str); |
| } |
| |
| //! Replace the set of phrase elements with those contained in new_strings |
| /*! The order of the strings in the given collection is important. |
| * They must follow: |
| * - first, second, third, fourth, fifth, last, before, after, of. |
| * |
| * It is not necessary to send in a complete set if only a few |
| * elements are to be replaced as long as the correct beg_pos is used. |
| * |
| * Ex: To keep the default first through fifth elements, but replace |
| * the rest with a collection of: |
| * - "final", "prior", "following", "in". |
| * The beg_pos of date_generator_formatter::last would be used. |
| */ |
| void elements(const collection_type& new_strings, |
| phrase_elements beg_pos=first) |
| { |
| if(beg_pos < number_of_phrase_elements) { |
| typename collection_type::iterator itr = phrase_strings.begin(); |
| itr += beg_pos; |
| std::copy(new_strings.begin(), new_strings.end(), |
| itr); |
| //phrase_strings.begin()); |
| } |
| } |
| |
| //!Put a partial_date => "dd Month" |
| template<class facet_type> |
| OutItrT put_partial_date(OutItrT next, std::ios_base& a_ios, |
| CharT a_fill, const partial_date_type& pd, |
| const facet_type& facet) const |
| { |
| facet.put(next, a_ios, a_fill, pd.day()); |
| next = a_fill; //TODO change this ??? |
| facet.put(next, a_ios, a_fill, pd.month()); |
| return next; |
| } |
| |
| //! Put an nth_day_of_the_week_in_month => "nth weekday of month" |
| template<class facet_type> |
| OutItrT put_nth_kday(OutItrT next, std::ios_base& a_ios, |
| CharT a_fill, const nth_kday_type& nkd, |
| const facet_type& facet) const |
| { |
| put_string(next, phrase_strings[nkd.nth_week() -1]); |
| next = a_fill; //TODO change this ??? |
| facet.put(next, a_ios, a_fill, nkd.day_of_week()); |
| next = a_fill; //TODO change this ??? |
| put_string(next, string_type(of_string)); |
| next = a_fill; //TODO change this ??? |
| facet.put(next, a_ios, a_fill, nkd.month()); |
| return next; |
| } |
| |
| //! Put a first_day_of_the_week_in_month => "first weekday of month" |
| template<class facet_type> |
| OutItrT put_first_kday(OutItrT next, std::ios_base& a_ios, |
| CharT a_fill, const first_kday_type& fkd, |
| const facet_type& facet) const |
| { |
| put_string(next, phrase_strings[first]); |
| next = a_fill; //TODO change this ??? |
| facet.put(next, a_ios, a_fill, fkd.day_of_week()); |
| next = a_fill; //TODO change this ??? |
| put_string(next, string_type(of_string)); |
| next = a_fill; //TODO change this ??? |
| facet.put(next, a_ios, a_fill, fkd.month()); |
| return next; |
| } |
| |
| //! Put a last_day_of_the_week_in_month => "last weekday of month" |
| template<class facet_type> |
| OutItrT put_last_kday(OutItrT next, std::ios_base& a_ios, |
| CharT a_fill, const last_kday_type& lkd, |
| const facet_type& facet) const |
| { |
| put_string(next, phrase_strings[last]); |
| next = a_fill; //TODO change this ??? |
| facet.put(next, a_ios, a_fill, lkd.day_of_week()); |
| next = a_fill; //TODO change this ??? |
| put_string(next, string_type(of_string)); |
| next = a_fill; //TODO change this ??? |
| facet.put(next, a_ios, a_fill, lkd.month()); |
| return next; |
| } |
| |
| //! Put a first_day_of_the_week_before => "weekday before" |
| template<class facet_type> |
| OutItrT put_kday_before(OutItrT next, std::ios_base& a_ios, |
| CharT a_fill, const kday_before_type& fkb, |
| const facet_type& facet) const |
| { |
| facet.put(next, a_ios, a_fill, fkb.day_of_week()); |
| next = a_fill; //TODO change this ??? |
| put_string(next, phrase_strings[before]); |
| return next; |
| } |
| |
| //! Put a first_day_of_the_week_after => "weekday after" |
| template<class facet_type> |
| OutItrT put_kday_after(OutItrT next, std::ios_base& a_ios, |
| CharT a_fill, const kday_after_type& fka, |
| const facet_type& facet) const |
| { |
| facet.put(next, a_ios, a_fill, fka.day_of_week()); |
| next = a_fill; //TODO change this ??? |
| put_string(next, phrase_strings[after]); |
| return next; |
| } |
| |
| |
| private: |
| collection_type phrase_strings; |
| |
| //! helper function to put the various member string into stream |
| OutItrT put_string(OutItrT next, const string_type& str) const |
| { |
| typename string_type::const_iterator itr = str.begin(); |
| while(itr != str.end()) { |
| *next = *itr; |
| ++itr; |
| ++next; |
| } |
| return next; |
| } |
| }; |
| |
| template<class date_type, class CharT, class OutItrT> |
| const typename date_generator_formatter<date_type, CharT, OutItrT>::char_type |
| date_generator_formatter<date_type, CharT, OutItrT>::first_string[6] = |
| {'f','i','r','s','t'}; |
| template<class date_type, class CharT, class OutItrT> |
| const typename date_generator_formatter<date_type, CharT, OutItrT>::char_type |
| date_generator_formatter<date_type, CharT, OutItrT>::second_string[7] = |
| {'s','e','c','o','n','d'}; |
| template<class date_type, class CharT, class OutItrT> |
| const typename date_generator_formatter<date_type, CharT, OutItrT>::char_type |
| date_generator_formatter<date_type, CharT, OutItrT>::third_string[6] = |
| {'t','h','i','r','d'}; |
| template<class date_type, class CharT, class OutItrT> |
| const typename date_generator_formatter<date_type, CharT, OutItrT>::char_type |
| date_generator_formatter<date_type, CharT, OutItrT>::fourth_string[7] = |
| {'f','o','u','r','t','h'}; |
| template<class date_type, class CharT, class OutItrT> |
| const typename date_generator_formatter<date_type, CharT, OutItrT>::char_type |
| date_generator_formatter<date_type, CharT, OutItrT>::fifth_string[6] = |
| {'f','i','f','t','h'}; |
| template<class date_type, class CharT, class OutItrT> |
| const typename date_generator_formatter<date_type, CharT, OutItrT>::char_type |
| date_generator_formatter<date_type, CharT, OutItrT>::last_string[5] = |
| {'l','a','s','t'}; |
| template<class date_type, class CharT, class OutItrT> |
| const typename date_generator_formatter<date_type, CharT, OutItrT>::char_type |
| date_generator_formatter<date_type, CharT, OutItrT>::before_string[8] = |
| {'b','e','f','o','r','e'}; |
| template<class date_type, class CharT, class OutItrT> |
| const typename date_generator_formatter<date_type, CharT, OutItrT>::char_type |
| date_generator_formatter<date_type, CharT, OutItrT>::after_string[6] = |
| {'a','f','t','e','r'}; |
| template<class date_type, class CharT, class OutItrT> |
| const typename date_generator_formatter<date_type, CharT, OutItrT>::char_type |
| date_generator_formatter<date_type, CharT, OutItrT>::of_string[3] = |
| {'o','f'}; |
| } } // namespaces |
| |
| #endif // _DATE_TIME_DATE_GENERATOR_FORMATTER__HPP___ |