[857] | 1 | #ifndef _DATE_TIME_DATE_GENERATOR_FORMATTER__HPP___
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| 2 | #define _DATE_TIME_DATE_GENERATOR_FORMATTER__HPP___
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| 3 |
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| 4 | /* Copyright (c) 2004 CrystalClear Software, Inc.
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| 5 | * Use, modification and distribution is subject to the
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| 6 | * Boost Software License, Version 1.0. (See accompanying
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| 7 | * file LICENSE-1.0 or http://www.boost.org/LICENSE-1.0)
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| 8 | * Author: Jeff Garland, Bart Garst
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| 9 | * $Date: 2005/03/28 14:27:09 $
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| 10 | */
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| 11 |
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| 12 | #include <iostream>
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| 13 | #include <string>
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| 14 | #include <vector>
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| 15 | #include <algorithm>
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| 16 | #include "boost/date_time/date_generators.hpp"
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| 17 |
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| 18 | namespace boost {
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| 19 | namespace date_time {
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| 20 |
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| 21 | //! Formats date_generators for output
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| 22 | /*! Formatting of date_generators follows specific orders for the
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| 23 | * various types of date_generators.
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| 24 | * - partial_date => "dd Month"
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| 25 | * - nth_day_of_the_week_in_month => "nth weekday of month"
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| 26 | * - first_day_of_the_week_in_month => "first weekday of month"
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| 27 | * - last_day_of_the_week_in_month => "last weekday of month"
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| 28 | * - first_day_of_the_week_after => "weekday after"
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| 29 | * - first_day_of_the_week_before => "weekday before"
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| 30 | * While the order of the elements in these phrases cannot be changed,
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| 31 | * the elements themselves can be. Weekday and Month get their formats
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| 32 | * and names from the date_facet. The remaining elements are stored in
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| 33 | * the date_generator_formatter and can be customized upon construction
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| 34 | * or via a member function. The default elements are those shown in the
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| 35 | * examples above.
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| 36 | */
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| 37 | template <class date_type, class CharT, class OutItrT = std::ostreambuf_iterator<CharT, std::char_traits<CharT> > >
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| 38 | class date_generator_formatter {
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| 39 | public:
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| 40 | typedef partial_date<date_type> partial_date_type;
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| 41 | typedef nth_kday_of_month<date_type> nth_kday_type;
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| 42 | typedef first_kday_of_month<date_type> first_kday_type;
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| 43 | typedef last_kday_of_month<date_type> last_kday_type;
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| 44 | typedef first_kday_after<date_type> kday_after_type;
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| 45 | typedef first_kday_before<date_type> kday_before_type;
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| 46 |
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| 47 | typedef CharT char_type;
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| 48 | typedef std::basic_string<char_type> string_type;
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| 49 | typedef std::vector<string_type> collection_type;
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| 50 | static const char_type first_string[6];
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| 51 | static const char_type second_string[7];
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| 52 | static const char_type third_string[6];
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| 53 | static const char_type fourth_string[7];
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| 54 | static const char_type fifth_string[6];
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| 55 | static const char_type last_string[5];
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| 56 | static const char_type before_string[8];
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| 57 | static const char_type after_string[6];
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| 58 | static const char_type of_string[3];
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| 59 |
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| 60 | enum phrase_elements {first=0, second, third, fourth, fifth, last,
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| 61 | before, after, of, number_of_phrase_elements};
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| 62 |
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| 63 | //! Default format elements used
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| 64 | date_generator_formatter()
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| 65 | {
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| 66 | phrase_strings.push_back(string_type(first_string));
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| 67 | phrase_strings.push_back(string_type(second_string));
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| 68 | phrase_strings.push_back(string_type(third_string));
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| 69 | phrase_strings.push_back(string_type(fourth_string));
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| 70 | phrase_strings.push_back(string_type(fifth_string));
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| 71 | phrase_strings.push_back(string_type(last_string));
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| 72 | phrase_strings.push_back(string_type(before_string));
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| 73 | phrase_strings.push_back(string_type(after_string));
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| 74 | phrase_strings.push_back(string_type(of_string));
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| 75 | }
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| 76 |
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| 77 | //! Constructor that allows for a custom set of phrase elements
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| 78 | date_generator_formatter(const string_type& first,
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| 79 | const string_type& second,
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| 80 | const string_type& third,
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| 81 | const string_type& fourth,
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| 82 | const string_type& fifth,
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| 83 | const string_type& last,
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| 84 | const string_type& before,
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| 85 | const string_type& after,
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| 86 | const string_type& of)
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| 87 | {
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| 88 | phrase_strings.push_back(string_type(first_string));
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| 89 | phrase_strings.push_back(string_type(second_string));
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| 90 | phrase_strings.push_back(string_type(third_string));
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| 91 | phrase_strings.push_back(string_type(fourth_string));
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| 92 | phrase_strings.push_back(string_type(fifth_string));
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| 93 | phrase_strings.push_back(string_type(last_string));
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| 94 | phrase_strings.push_back(string_type(before_string));
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| 95 | phrase_strings.push_back(string_type(after_string));
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| 96 | phrase_strings.push_back(string_type(of_string));
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| 97 | }
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| 98 |
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| 99 | //! Replace the set of phrase elements with those contained in new_strings
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| 100 | /*! The order of the strings in the given collection is important.
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| 101 | * They must follow:
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| 102 | * - first, second, third, fourth, fifth, last, before, after, of.
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| 103 | *
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| 104 | * It is not necessary to send in a complete set if only a few
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| 105 | * elements are to be replaced as long as the correct beg_pos is used.
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| 106 | *
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| 107 | * Ex: To keep the default first through fifth elements, but replace
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| 108 | * the rest with a collection of:
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| 109 | * - "final", "prior", "following", "in".
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| 110 | * The beg_pos of date_generator_formatter::last would be used.
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| 111 | */
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| 112 | void elements(const collection_type& new_strings,
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| 113 | phrase_elements beg_pos=first)
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| 114 | {
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| 115 | if(beg_pos < number_of_phrase_elements) {
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| 116 | typename collection_type::iterator itr = phrase_strings.begin();
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| 117 | itr += beg_pos;
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| 118 | std::copy(new_strings.begin(), new_strings.end(),
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| 119 | itr);
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| 120 | //phrase_strings.begin());
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| 121 | }
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| 122 | }
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| 123 |
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| 124 | //!Put a partial_date => "dd Month"
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| 125 | template<class facet_type>
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| 126 | OutItrT put_partial_date(OutItrT next, std::ios_base& a_ios,
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| 127 | CharT a_fill, const partial_date_type& pd,
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| 128 | const facet_type& facet) const
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| 129 | {
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| 130 | facet.put(next, a_ios, a_fill, pd.day());
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| 131 | next = a_fill; //TODO change this ???
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| 132 | facet.put(next, a_ios, a_fill, pd.month());
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| 133 | return next;
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| 134 | }
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| 135 |
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| 136 | //! Put an nth_day_of_the_week_in_month => "nth weekday of month"
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| 137 | template<class facet_type>
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| 138 | OutItrT put_nth_kday(OutItrT next, std::ios_base& a_ios,
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| 139 | CharT a_fill, const nth_kday_type& nkd,
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| 140 | const facet_type& facet) const
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| 141 | {
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| 142 | put_string(next, phrase_strings[nkd.nth_week() -1]);
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| 143 | next = a_fill; //TODO change this ???
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| 144 | facet.put(next, a_ios, a_fill, nkd.day_of_week());
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| 145 | next = a_fill; //TODO change this ???
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| 146 | put_string(next, string_type(of_string));
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| 147 | next = a_fill; //TODO change this ???
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| 148 | facet.put(next, a_ios, a_fill, nkd.month());
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| 149 | return next;
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| 150 | }
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| 151 |
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| 152 | //! Put a first_day_of_the_week_in_month => "first weekday of month"
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| 153 | template<class facet_type>
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| 154 | OutItrT put_first_kday(OutItrT next, std::ios_base& a_ios,
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| 155 | CharT a_fill, const first_kday_type& fkd,
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| 156 | const facet_type& facet) const
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| 157 | {
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| 158 | put_string(next, phrase_strings[first]);
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| 159 | next = a_fill; //TODO change this ???
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| 160 | facet.put(next, a_ios, a_fill, fkd.day_of_week());
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| 161 | next = a_fill; //TODO change this ???
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| 162 | put_string(next, string_type(of_string));
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| 163 | next = a_fill; //TODO change this ???
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| 164 | facet.put(next, a_ios, a_fill, fkd.month());
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| 165 | return next;
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| 166 | }
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| 167 |
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| 168 | //! Put a last_day_of_the_week_in_month => "last weekday of month"
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| 169 | template<class facet_type>
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| 170 | OutItrT put_last_kday(OutItrT next, std::ios_base& a_ios,
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| 171 | CharT a_fill, const last_kday_type& lkd,
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| 172 | const facet_type& facet) const
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| 173 | {
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| 174 | put_string(next, phrase_strings[last]);
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| 175 | next = a_fill; //TODO change this ???
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| 176 | facet.put(next, a_ios, a_fill, lkd.day_of_week());
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| 177 | next = a_fill; //TODO change this ???
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| 178 | put_string(next, string_type(of_string));
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| 179 | next = a_fill; //TODO change this ???
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| 180 | facet.put(next, a_ios, a_fill, lkd.month());
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| 181 | return next;
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| 182 | }
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| 183 |
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| 184 | //! Put a first_day_of_the_week_before => "weekday before"
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| 185 | template<class facet_type>
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| 186 | OutItrT put_kday_before(OutItrT next, std::ios_base& a_ios,
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| 187 | CharT a_fill, const kday_before_type& fkb,
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| 188 | const facet_type& facet) const
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| 189 | {
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| 190 | facet.put(next, a_ios, a_fill, fkb.day_of_week());
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| 191 | next = a_fill; //TODO change this ???
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| 192 | put_string(next, phrase_strings[before]);
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| 193 | return next;
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| 194 | }
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| 195 |
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| 196 | //! Put a first_day_of_the_week_after => "weekday after"
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| 197 | template<class facet_type>
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| 198 | OutItrT put_kday_after(OutItrT next, std::ios_base& a_ios,
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| 199 | CharT a_fill, const kday_after_type& fka,
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| 200 | const facet_type& facet) const
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| 201 | {
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| 202 | facet.put(next, a_ios, a_fill, fka.day_of_week());
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| 203 | next = a_fill; //TODO change this ???
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| 204 | put_string(next, phrase_strings[after]);
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| 205 | return next;
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| 206 | }
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| 207 |
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| 208 |
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| 209 | private:
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| 210 | collection_type phrase_strings;
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| 211 |
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| 212 | //! helper function to put the various member string into stream
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| 213 | OutItrT put_string(OutItrT next, const string_type& str) const
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| 214 | {
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| 215 | typename string_type::const_iterator itr = str.begin();
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| 216 | while(itr != str.end()) {
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| 217 | *next = *itr;
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| 218 | ++itr;
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| 219 | ++next;
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| 220 | }
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| 221 | return next;
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| 222 | }
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| 223 | };
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| 224 |
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| 225 | template<class date_type, class CharT, class OutItrT>
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| 226 | const typename date_generator_formatter<date_type, CharT, OutItrT>::char_type
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| 227 | date_generator_formatter<date_type, CharT, OutItrT>::first_string[6] =
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| 228 | {'f','i','r','s','t'};
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| 229 | template<class date_type, class CharT, class OutItrT>
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| 230 | const typename date_generator_formatter<date_type, CharT, OutItrT>::char_type
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| 231 | date_generator_formatter<date_type, CharT, OutItrT>::second_string[7] =
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| 232 | {'s','e','c','o','n','d'};
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| 233 | template<class date_type, class CharT, class OutItrT>
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| 234 | const typename date_generator_formatter<date_type, CharT, OutItrT>::char_type
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| 235 | date_generator_formatter<date_type, CharT, OutItrT>::third_string[6] =
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| 236 | {'t','h','i','r','d'};
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| 237 | template<class date_type, class CharT, class OutItrT>
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| 238 | const typename date_generator_formatter<date_type, CharT, OutItrT>::char_type
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| 239 | date_generator_formatter<date_type, CharT, OutItrT>::fourth_string[7] =
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| 240 | {'f','o','u','r','t','h'};
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| 241 | template<class date_type, class CharT, class OutItrT>
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| 242 | const typename date_generator_formatter<date_type, CharT, OutItrT>::char_type
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| 243 | date_generator_formatter<date_type, CharT, OutItrT>::fifth_string[6] =
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| 244 | {'f','i','f','t','h'};
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| 245 | template<class date_type, class CharT, class OutItrT>
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| 246 | const typename date_generator_formatter<date_type, CharT, OutItrT>::char_type
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| 247 | date_generator_formatter<date_type, CharT, OutItrT>::last_string[5] =
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| 248 | {'l','a','s','t'};
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| 249 | template<class date_type, class CharT, class OutItrT>
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| 250 | const typename date_generator_formatter<date_type, CharT, OutItrT>::char_type
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| 251 | date_generator_formatter<date_type, CharT, OutItrT>::before_string[8] =
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| 252 | {'b','e','f','o','r','e'};
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| 253 | template<class date_type, class CharT, class OutItrT>
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| 254 | const typename date_generator_formatter<date_type, CharT, OutItrT>::char_type
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| 255 | date_generator_formatter<date_type, CharT, OutItrT>::after_string[6] =
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| 256 | {'a','f','t','e','r'};
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| 257 | template<class date_type, class CharT, class OutItrT>
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| 258 | const typename date_generator_formatter<date_type, CharT, OutItrT>::char_type
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| 259 | date_generator_formatter<date_type, CharT, OutItrT>::of_string[3] =
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| 260 | {'o','f'};
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| 261 | } } // namespaces
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| 262 |
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| 263 | #endif // _DATE_TIME_DATE_GENERATOR_FORMATTER__HPP___
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