[44] | 1 | #ifndef ISO_FORMAT_HPP___ |
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| 2 | #define ISO_FORMAT_HPP___ |
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| 3 | |
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| 4 | /* Copyright (c) 2002,2003 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.txt or http://www.boost.org/LICENSE_1_0.txt) |
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| 8 | * Author: Jeff Garland, Bart Garst |
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| 9 | * $Date: 2008-02-27 15:00:24 -0500 (Wed, 27 Feb 2008) $ |
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| 10 | */ |
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| 11 | |
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| 12 | #include "boost/date_time/parse_format_base.hpp" |
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| 13 | |
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| 14 | namespace boost { |
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| 15 | namespace date_time { |
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| 16 | |
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| 17 | //! Class to provide common iso formatting spec |
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| 18 | template<class charT> |
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| 19 | class iso_format_base { |
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| 20 | public: |
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| 21 | //! Describe month format -- its an integer in iso format |
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| 22 | static month_format_spec month_format() |
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| 23 | { |
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| 24 | return month_as_integer; |
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| 25 | } |
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| 26 | |
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| 27 | //! String used printed is date is invalid |
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| 28 | static const charT* not_a_date() |
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| 29 | { |
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| 30 | return "not-a-date-time"; |
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| 31 | } |
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| 32 | //! String used to for positive infinity value |
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| 33 | static const charT* pos_infinity() |
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| 34 | { |
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| 35 | return "+infinity"; |
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| 36 | } |
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| 37 | //! String used to for positive infinity value |
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| 38 | static const charT* neg_infinity() |
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| 39 | { |
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| 40 | return "-infinity"; |
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| 41 | } |
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| 42 | |
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| 43 | //! ISO char for a year -- used in durations |
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| 44 | static charT year_sep_char() |
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| 45 | { |
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| 46 | return 'Y'; |
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| 47 | } |
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| 48 | //! ISO char for a month |
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| 49 | static charT month_sep_char() |
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| 50 | { |
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| 51 | return '-'; |
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| 52 | } |
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| 53 | //! ISO char for a day |
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| 54 | static charT day_sep_char() |
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| 55 | { |
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| 56 | return '-'; |
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| 57 | } |
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| 58 | //! char for minute |
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| 59 | static charT hour_sep_char() |
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| 60 | { |
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| 61 | return ':'; |
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| 62 | } |
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| 63 | //! char for minute |
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| 64 | static charT minute_sep_char() |
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| 65 | { |
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| 66 | return ':'; |
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| 67 | } |
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| 68 | //! char for second |
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| 69 | static charT second_sep_char() |
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| 70 | { |
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| 71 | return ':'; |
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| 72 | } |
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| 73 | //! ISO char for a period |
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| 74 | static charT period_start_char() |
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| 75 | { |
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| 76 | return 'P'; |
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| 77 | } |
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| 78 | //! Used in time in mixed strings to set start of time |
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| 79 | static charT time_start_char() |
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| 80 | { |
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| 81 | return 'T'; |
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| 82 | } |
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| 83 | |
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| 84 | //! Used in mixed strings to identify start of a week number |
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| 85 | static charT week_start_char() |
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| 86 | { |
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| 87 | return 'W'; |
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| 88 | } |
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| 89 | |
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| 90 | //! Separators for periods |
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| 91 | static charT period_sep_char() |
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| 92 | { |
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| 93 | return '/'; |
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| 94 | } |
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| 95 | //! Separator for hh:mm:ss |
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| 96 | static charT time_sep_char() |
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| 97 | { |
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| 98 | return ':'; |
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| 99 | } |
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| 100 | //! Preferred Separator for hh:mm:ss,decimal_fraction |
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| 101 | static charT fractional_time_sep_char() |
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| 102 | { |
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| 103 | return ','; |
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| 104 | } |
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| 105 | |
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| 106 | static bool is_component_sep(charT sep) |
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| 107 | { |
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| 108 | switch(sep) { |
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| 109 | case 'H': |
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| 110 | case 'M': |
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| 111 | case 'S': |
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| 112 | case 'W': |
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| 113 | case 'T': |
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| 114 | case 'Y': |
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| 115 | case 'D':return true; |
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| 116 | default: |
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| 117 | return false; |
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| 118 | } |
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| 119 | } |
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| 120 | |
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| 121 | static bool is_fractional_time_sep(charT sep) |
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| 122 | { |
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| 123 | switch(sep) { |
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| 124 | case ',': |
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| 125 | case '.': return true; |
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| 126 | default: return false; |
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| 127 | } |
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| 128 | } |
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| 129 | static bool is_timezone_sep(charT sep) |
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| 130 | { |
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| 131 | switch(sep) { |
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| 132 | case '+': |
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| 133 | case '-': return true; |
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| 134 | default: return false; |
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| 135 | } |
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| 136 | } |
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| 137 | static charT element_sep_char() |
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| 138 | { |
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| 139 | return '-'; |
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| 140 | } |
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| 141 | |
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| 142 | }; |
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| 143 | |
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| 144 | #ifndef BOOST_NO_STD_WSTRING |
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| 145 | |
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| 146 | //! Class to provide common iso formatting spec |
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| 147 | template<> |
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| 148 | class iso_format_base<wchar_t> { |
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| 149 | public: |
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| 150 | //! Describe month format -- its an integer in iso format |
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| 151 | static month_format_spec month_format() |
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| 152 | { |
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| 153 | return month_as_integer; |
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| 154 | } |
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| 155 | |
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| 156 | //! String used printed is date is invalid |
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| 157 | static const wchar_t* not_a_date() |
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| 158 | { |
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| 159 | return L"not-a-date-time"; |
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| 160 | } |
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| 161 | //! String used to for positive infinity value |
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| 162 | static const wchar_t* pos_infinity() |
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| 163 | { |
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| 164 | return L"+infinity"; |
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| 165 | } |
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| 166 | //! String used to for positive infinity value |
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| 167 | static const wchar_t* neg_infinity() |
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| 168 | { |
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| 169 | return L"-infinity"; |
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| 170 | } |
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| 171 | |
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| 172 | //! ISO char for a year -- used in durations |
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| 173 | static wchar_t year_sep_char() |
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| 174 | { |
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| 175 | return 'Y'; |
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| 176 | } |
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| 177 | //! ISO char for a month |
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| 178 | static wchar_t month_sep_char() |
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| 179 | { |
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| 180 | return '-'; |
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| 181 | } |
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| 182 | //! ISO char for a day |
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| 183 | static wchar_t day_sep_char() |
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| 184 | { |
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| 185 | return '-'; |
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| 186 | } |
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| 187 | //! char for minute |
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| 188 | static wchar_t hour_sep_char() |
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| 189 | { |
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| 190 | return ':'; |
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| 191 | } |
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| 192 | //! char for minute |
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| 193 | static wchar_t minute_sep_char() |
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| 194 | { |
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| 195 | return ':'; |
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| 196 | } |
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| 197 | //! char for second |
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| 198 | static wchar_t second_sep_char() |
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| 199 | { |
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| 200 | return ':'; |
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| 201 | } |
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| 202 | //! ISO char for a period |
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| 203 | static wchar_t period_start_char() |
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| 204 | { |
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| 205 | return 'P'; |
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| 206 | } |
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| 207 | //! Used in time in mixed strings to set start of time |
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| 208 | static wchar_t time_start_char() |
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| 209 | { |
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| 210 | return 'T'; |
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| 211 | } |
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| 212 | |
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| 213 | //! Used in mixed strings to identify start of a week number |
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| 214 | static wchar_t week_start_char() |
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| 215 | { |
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| 216 | return 'W'; |
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| 217 | } |
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| 218 | |
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| 219 | //! Separators for periods |
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| 220 | static wchar_t period_sep_char() |
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| 221 | { |
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| 222 | return '/'; |
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| 223 | } |
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| 224 | //! Separator for hh:mm:ss |
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| 225 | static wchar_t time_sep_char() |
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| 226 | { |
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| 227 | return ':'; |
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| 228 | } |
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| 229 | //! Preferred Separator for hh:mm:ss,decimal_fraction |
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| 230 | static wchar_t fractional_time_sep_char() |
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| 231 | { |
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| 232 | return ','; |
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| 233 | } |
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| 234 | |
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| 235 | static bool is_component_sep(wchar_t sep) |
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| 236 | { |
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| 237 | switch(sep) { |
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| 238 | case 'H': |
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| 239 | case 'M': |
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| 240 | case 'S': |
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| 241 | case 'W': |
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| 242 | case 'T': |
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| 243 | case 'Y': |
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| 244 | case 'D':return true; |
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| 245 | default: |
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| 246 | return false; |
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| 247 | } |
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| 248 | } |
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| 249 | |
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| 250 | static bool is_fractional_time_sep(wchar_t sep) |
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| 251 | { |
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| 252 | switch(sep) { |
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| 253 | case ',': |
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| 254 | case '.': return true; |
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| 255 | default: return false; |
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| 256 | } |
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| 257 | } |
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| 258 | static bool is_timezone_sep(wchar_t sep) |
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| 259 | { |
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| 260 | switch(sep) { |
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| 261 | case '+': |
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| 262 | case '-': return true; |
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| 263 | default: return false; |
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| 264 | } |
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| 265 | } |
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| 266 | static wchar_t element_sep_char() |
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| 267 | { |
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| 268 | return '-'; |
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| 269 | } |
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| 270 | |
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| 271 | }; |
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| 272 | |
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| 273 | #endif // BOOST_NO_STD_WSTRING |
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| 274 | |
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| 275 | //! Format description for iso normal YYYYMMDD |
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| 276 | template<class charT> |
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| 277 | class iso_format : public iso_format_base<charT> { |
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| 278 | public: |
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| 279 | //! The ios standard format doesn't use char separators |
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| 280 | static bool has_date_sep_chars() |
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| 281 | { |
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| 282 | return false; |
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| 283 | } |
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| 284 | }; |
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| 285 | |
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| 286 | //! Extended format uses seperators YYYY-MM-DD |
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| 287 | template<class charT> |
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| 288 | class iso_extended_format : public iso_format_base<charT> { |
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| 289 | public: |
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| 290 | //! Extended format needs char separators |
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| 291 | static bool has_date_sep_chars() |
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| 292 | { |
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| 293 | return true; |
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| 294 | } |
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| 295 | |
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| 296 | }; |
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| 297 | |
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| 298 | } } //namespace date_time |
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| 299 | |
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| 300 | |
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| 301 | |
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| 302 | |
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| 303 | #endif |
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