[3408] | 1 | |
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| 2 | #ifndef _DATE_TIME_FACET__HPP__ |
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| 3 | #define _DATE_TIME_FACET__HPP__ |
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| 4 | |
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| 5 | /* Copyright (c) 2004-2005 CrystalClear Software, Inc. |
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| 6 | * Use, modification and distribution is subject to the |
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| 7 | * Boost Software License, Version 1.0. (See accompanying |
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| 8 | * file LICENSE_1_0.txt or http://www.boost.org/LICENSE_1_0.txt) |
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| 9 | * Author: Martin Andrian, Jeff Garland, Bart Garst |
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| 10 | * $Date: 2010-06-09 12:39:31 -0400 (Wed, 09 Jun 2010) $ |
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| 11 | */ |
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| 12 | |
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| 13 | #include <cctype> |
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| 14 | #include <locale> |
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| 15 | #include <limits> |
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| 16 | #include <string> |
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| 17 | #include <sstream> |
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| 18 | #include <iomanip> |
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| 19 | #include <iterator> // i/ostreambuf_iterator |
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| 20 | #include <exception> |
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| 21 | #include <boost/assert.hpp> |
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| 22 | #include <boost/lexical_cast.hpp> |
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| 23 | #include <boost/throw_exception.hpp> |
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| 24 | #include <boost/range/as_literal.hpp> |
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| 25 | #include <boost/algorithm/string/erase.hpp> |
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| 26 | #include <boost/algorithm/string/replace.hpp> |
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| 27 | #include <boost/date_time/compiler_config.hpp> |
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| 28 | #include <boost/date_time/date_facet.hpp> |
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| 29 | #include <boost/date_time/string_convert.hpp> |
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| 30 | #include <boost/date_time/special_defs.hpp> |
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| 31 | #include <boost/date_time/time_resolution_traits.hpp> // absolute_value |
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| 32 | |
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| 33 | namespace boost { |
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| 34 | namespace date_time { |
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| 35 | |
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| 36 | template <class CharT> |
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| 37 | struct time_formats { |
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| 38 | public: |
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| 39 | typedef CharT char_type; |
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| 40 | static const char_type fractional_seconds_format[3]; // f |
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| 41 | static const char_type fractional_seconds_or_none_format[3]; // F |
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| 42 | static const char_type seconds_with_fractional_seconds_format[3]; // s |
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| 43 | static const char_type seconds_format[3]; // S |
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| 44 | static const char_type hours_format[3]; // H |
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| 45 | static const char_type unrestricted_hours_format[3]; // O |
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| 46 | static const char_type full_24_hour_time_format[3]; // T |
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| 47 | static const char_type full_24_hour_time_expanded_format[9]; // HH:MM:SS |
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| 48 | static const char_type short_24_hour_time_format[3]; // R |
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| 49 | static const char_type short_24_hour_time_expanded_format[6]; // HH:MM |
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| 50 | static const char_type standard_format[9]; // x X |
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| 51 | static const char_type zone_abbrev_format[3]; // z |
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| 52 | static const char_type zone_name_format[3]; // Z |
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| 53 | static const char_type zone_iso_format[3]; // q |
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| 54 | static const char_type zone_iso_extended_format[3]; // Q |
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| 55 | static const char_type posix_zone_string_format[4]; // ZP |
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| 56 | static const char_type duration_sign_negative_only[3]; // - |
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| 57 | static const char_type duration_sign_always[3]; // + |
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| 58 | static const char_type duration_seperator[2]; |
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| 59 | static const char_type negative_sign[2]; //- |
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| 60 | static const char_type positive_sign[2]; //+ |
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| 61 | static const char_type iso_time_format_specifier[18]; |
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| 62 | static const char_type iso_time_format_extended_specifier[22]; |
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| 63 | //default ptime format is YYYY-Mon-DD HH:MM:SS[.fff...][ zzz] |
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| 64 | static const char_type default_time_format[23]; |
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| 65 | // default_time_input_format uses a posix_time_zone_string instead of a time zone abbrev |
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| 66 | static const char_type default_time_input_format[24]; |
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| 67 | //default time_duration format is HH:MM:SS[.fff...] |
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| 68 | static const char_type default_time_duration_format[11]; |
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| 69 | }; |
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| 70 | |
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| 71 | template <class CharT> |
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| 72 | const typename time_formats<CharT>::char_type |
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| 73 | time_formats<CharT>::fractional_seconds_format[3] = {'%','f'}; |
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| 74 | |
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| 75 | template <class CharT> |
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| 76 | const typename time_formats<CharT>::char_type |
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| 77 | time_formats<CharT>::fractional_seconds_or_none_format[3] = {'%','F'}; |
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| 78 | |
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| 79 | template <class CharT> |
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| 80 | const typename time_formats<CharT>::char_type |
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| 81 | time_formats<CharT>::seconds_with_fractional_seconds_format[3] = {'%','s'}; |
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| 82 | |
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| 83 | template <class CharT> |
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| 84 | const typename time_formats<CharT>::char_type |
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| 85 | time_formats<CharT>::seconds_format[3] = {'%','S'}; |
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| 86 | |
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| 87 | template <class CharT> |
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| 88 | const typename time_formats<CharT>::char_type |
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| 89 | time_formats<CharT>::hours_format[3] = {'%','H'}; |
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| 90 | |
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| 91 | template <class CharT> |
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| 92 | const typename time_formats<CharT>::char_type |
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| 93 | time_formats<CharT>::unrestricted_hours_format[3] = {'%','O'}; |
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| 94 | |
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| 95 | template <class CharT> |
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| 96 | const typename time_formats<CharT>::char_type |
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| 97 | time_formats<CharT>::full_24_hour_time_format[3] = {'%','T'}; |
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| 98 | |
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| 99 | template <class CharT> |
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| 100 | const typename time_formats<CharT>::char_type |
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| 101 | time_formats<CharT>::full_24_hour_time_expanded_format[9] = |
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| 102 | {'%','H',':','%','M',':','%','S'}; |
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| 103 | |
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| 104 | template <class CharT> |
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| 105 | const typename time_formats<CharT>::char_type |
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| 106 | time_formats<CharT>::short_24_hour_time_format[3] = {'%','R'}; |
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| 107 | |
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| 108 | template <class CharT> |
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| 109 | const typename time_formats<CharT>::char_type |
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| 110 | time_formats<CharT>::short_24_hour_time_expanded_format[6] = |
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| 111 | {'%','H',':','%','M'}; |
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| 112 | |
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| 113 | template <class CharT> |
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| 114 | const typename time_formats<CharT>::char_type |
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| 115 | //time_formats<CharT>::standard_format[5] = {'%','c',' ','%','z'}; |
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| 116 | time_formats<CharT>::standard_format[9] = {'%','x',' ','%','X',' ','%','z'}; |
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| 117 | |
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| 118 | template <class CharT> |
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| 119 | const typename time_formats<CharT>::char_type |
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| 120 | time_formats<CharT>::zone_abbrev_format[3] = {'%','z'}; |
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| 121 | |
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| 122 | template <class CharT> |
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| 123 | const typename time_formats<CharT>::char_type |
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| 124 | time_formats<CharT>::zone_name_format[3] = {'%','Z'}; |
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| 125 | |
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| 126 | template <class CharT> |
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| 127 | const typename time_formats<CharT>::char_type |
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| 128 | time_formats<CharT>::zone_iso_format[3] = {'%','q'}; |
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| 129 | |
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| 130 | template <class CharT> |
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| 131 | const typename time_formats<CharT>::char_type |
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| 132 | time_formats<CharT>::zone_iso_extended_format[3] ={'%','Q'}; |
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| 133 | |
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| 134 | template <class CharT> |
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| 135 | const typename time_formats<CharT>::char_type |
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| 136 | time_formats<CharT>::posix_zone_string_format[4] ={'%','Z','P'}; |
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| 137 | |
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| 138 | template <class CharT> |
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| 139 | const typename time_formats<CharT>::char_type |
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| 140 | time_formats<CharT>::duration_seperator[2] = {':'}; |
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| 141 | |
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| 142 | template <class CharT> |
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| 143 | const typename time_formats<CharT>::char_type |
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| 144 | time_formats<CharT>::negative_sign[2] = {'-'}; |
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| 145 | |
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| 146 | template <class CharT> |
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| 147 | const typename time_formats<CharT>::char_type |
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| 148 | time_formats<CharT>::positive_sign[2] = {'+'}; |
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| 149 | |
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| 150 | template <class CharT> |
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| 151 | const typename time_formats<CharT>::char_type |
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| 152 | time_formats<CharT>::duration_sign_negative_only[3] ={'%','-'}; |
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| 153 | |
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| 154 | template <class CharT> |
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| 155 | const typename time_formats<CharT>::char_type |
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| 156 | time_formats<CharT>::duration_sign_always[3] ={'%','+'}; |
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| 157 | |
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| 158 | template <class CharT> |
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| 159 | const typename time_formats<CharT>::char_type |
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| 160 | time_formats<CharT>::iso_time_format_specifier[18] = |
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| 161 | {'%', 'Y', '%', 'm', '%', 'd', 'T', |
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| 162 | '%', 'H', '%', 'M', '%', 'S', '%', 'F', '%','q' }; |
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| 163 | |
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| 164 | template <class CharT> |
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| 165 | const typename time_formats<CharT>::char_type |
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| 166 | time_formats<CharT>::iso_time_format_extended_specifier[22] = |
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| 167 | {'%', 'Y', '-', '%', 'm', '-', '%', 'd', ' ', |
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| 168 | '%', 'H', ':', '%', 'M', ':', '%', 'S', '%', 'F','%','Q'}; |
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| 169 | |
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| 170 | template <class CharT> |
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| 171 | const typename time_formats<CharT>::char_type |
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| 172 | time_formats<CharT>::default_time_format[23] = |
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| 173 | {'%','Y','-','%','b','-','%','d',' ', |
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| 174 | '%','H',':','%','M',':','%','S','%','F',' ','%','z'}; |
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| 175 | |
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| 176 | template <class CharT> |
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| 177 | const typename time_formats<CharT>::char_type |
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| 178 | time_formats<CharT>::default_time_input_format[24] = |
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| 179 | {'%','Y','-','%','b','-','%','d',' ', |
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| 180 | '%','H',':','%','M',':','%','S','%','F',' ','%','Z','P'}; |
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| 181 | |
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| 182 | template <class CharT> |
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| 183 | const typename time_formats<CharT>::char_type |
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| 184 | time_formats<CharT>::default_time_duration_format[11] = |
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| 185 | {'%','O',':','%','M',':','%','S','%','F'}; |
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| 186 | |
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| 187 | |
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| 188 | |
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| 189 | /*! Facet used for format-based output of time types |
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| 190 | * This class provides for the use of format strings to output times. In addition |
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| 191 | * to the flags for formatting date elements, the following are the allowed format flags: |
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| 192 | * - %x %X => default format - enables addition of more flags to default (ie. "%x %X %z") |
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| 193 | * - %f => fractional seconds ".123456" |
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| 194 | * - %F => fractional seconds or none: like frac sec but empty if frac sec == 0 |
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| 195 | * - %s => seconds w/ fractional sec "02.123" (this is the same as "%S%f) |
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| 196 | * - %S => seconds "02" |
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| 197 | * - %z => abbreviated time zone "EDT" |
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| 198 | * - %Z => full time zone name "Eastern Daylight Time" |
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| 199 | */ |
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| 200 | template <class time_type, |
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| 201 | class CharT, |
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| 202 | class OutItrT = std::ostreambuf_iterator<CharT, std::char_traits<CharT> > > |
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| 203 | class time_facet : |
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| 204 | public boost::date_time::date_facet<typename time_type::date_type , CharT, OutItrT> { |
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| 205 | typedef time_formats< CharT > formats_type; |
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| 206 | public: |
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| 207 | typedef typename time_type::date_type date_type; |
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| 208 | typedef typename time_type::time_duration_type time_duration_type; |
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| 209 | typedef boost::date_time::period<time_type,time_duration_type> period_type; |
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| 210 | typedef boost::date_time::date_facet<typename time_type::date_type, CharT, OutItrT> base_type; |
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| 211 | typedef typename base_type::string_type string_type; |
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| 212 | typedef typename base_type::char_type char_type; |
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| 213 | typedef typename base_type::period_formatter_type period_formatter_type; |
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| 214 | typedef typename base_type::special_values_formatter_type special_values_formatter_type; |
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| 215 | typedef typename base_type::date_gen_formatter_type date_gen_formatter_type; |
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| 216 | static const char_type* fractional_seconds_format; // %f |
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| 217 | static const char_type* fractional_seconds_or_none_format; // %F |
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| 218 | static const char_type* seconds_with_fractional_seconds_format; // %s |
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| 219 | static const char_type* seconds_format; // %S |
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| 220 | static const char_type* hours_format; // %H |
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| 221 | static const char_type* unrestricted_hours_format; // %O |
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| 222 | static const char_type* standard_format; // %x X |
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| 223 | static const char_type* zone_abbrev_format; // %z |
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| 224 | static const char_type* zone_name_format; // %Z |
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| 225 | static const char_type* zone_iso_format; // %q |
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| 226 | static const char_type* zone_iso_extended_format; // %Q |
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| 227 | static const char_type* posix_zone_string_format; // %ZP |
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| 228 | static const char_type* duration_seperator; |
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| 229 | static const char_type* duration_sign_always; // %+ |
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| 230 | static const char_type* duration_sign_negative_only; // %- |
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| 231 | static const char_type* negative_sign; //- |
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| 232 | static const char_type* positive_sign; //+ |
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| 233 | static const char_type* iso_time_format_specifier; |
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| 234 | static const char_type* iso_time_format_extended_specifier; |
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| 235 | |
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| 236 | //default ptime format is YYYY-Mon-DD HH:MM:SS[.fff...][ zzz] |
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| 237 | static const char_type* default_time_format; |
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| 238 | //default time_duration format is HH:MM:SS[.fff...] |
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| 239 | static const char_type* default_time_duration_format; |
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| 240 | static std::locale::id id; |
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| 241 | |
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| 242 | #if defined (__SUNPRO_CC) && defined (_RWSTD_VER) |
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| 243 | std::locale::id& __get_id (void) const { return id; } |
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| 244 | #endif |
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| 245 | |
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| 246 | //! sets default formats for ptime, local_date_time, and time_duration |
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| 247 | explicit time_facet(::size_t a_ref = 0) |
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| 248 | : base_type(default_time_format, period_formatter_type(), special_values_formatter_type(), date_gen_formatter_type(), a_ref), |
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| 249 | m_time_duration_format(string_type(duration_sign_negative_only) + default_time_duration_format) |
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| 250 | {} |
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| 251 | |
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| 252 | //! Construct the facet with an explicitly specified format |
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| 253 | explicit time_facet(const char_type* a_format, |
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| 254 | period_formatter_type period_formatter = period_formatter_type(), |
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| 255 | const special_values_formatter_type& special_value_formatter = special_values_formatter_type(), |
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| 256 | date_gen_formatter_type dg_formatter = date_gen_formatter_type(), |
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| 257 | ::size_t a_ref = 0) |
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| 258 | : base_type(a_format, |
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| 259 | period_formatter, |
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| 260 | special_value_formatter, |
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| 261 | dg_formatter, |
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| 262 | a_ref), |
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| 263 | m_time_duration_format(string_type(duration_sign_negative_only) + default_time_duration_format) |
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| 264 | {} |
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| 265 | |
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| 266 | //! Changes format for time_duration |
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| 267 | void time_duration_format(const char_type* const format) |
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| 268 | { |
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| 269 | m_time_duration_format = format; |
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| 270 | } |
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| 271 | |
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| 272 | virtual void set_iso_format() |
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| 273 | { |
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| 274 | this->m_format = iso_time_format_specifier; |
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| 275 | } |
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| 276 | virtual void set_iso_extended_format() |
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| 277 | { |
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| 278 | this->m_format = iso_time_format_extended_specifier; |
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| 279 | } |
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| 280 | |
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| 281 | OutItrT put(OutItrT a_next, |
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| 282 | std::ios_base& a_ios, |
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| 283 | char_type a_fill, |
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| 284 | const time_type& a_time) const |
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| 285 | { |
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| 286 | if (a_time.is_special()) { |
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| 287 | return this->do_put_special(a_next, a_ios, a_fill, |
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| 288 | a_time.date().as_special()); |
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| 289 | } |
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| 290 | string_type format(this->m_format); |
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| 291 | |
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| 292 | // %T and %R have to be replaced here since they are not standard |
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| 293 | boost::algorithm::replace_all(format, |
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| 294 | boost::as_literal(formats_type::full_24_hour_time_format), |
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| 295 | boost::as_literal(formats_type::full_24_hour_time_expanded_format)); |
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| 296 | boost::algorithm::replace_all(format, |
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| 297 | boost::as_literal(formats_type::short_24_hour_time_format), |
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| 298 | boost::as_literal(formats_type::short_24_hour_time_expanded_format)); |
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| 299 | |
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| 300 | string_type frac_str; |
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| 301 | if (format.find(seconds_with_fractional_seconds_format) != string_type::npos) { |
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| 302 | // replace %s with %S.nnn |
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| 303 | frac_str = |
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| 304 | fractional_seconds_as_string(a_time.time_of_day(), false); |
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| 305 | char_type sep = std::use_facet<std::numpunct<char_type> >(a_ios.getloc()).decimal_point(); |
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| 306 | |
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| 307 | string_type replace_string(seconds_format); |
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| 308 | replace_string += sep; |
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| 309 | replace_string += frac_str; |
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| 310 | boost::algorithm::replace_all(format, |
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| 311 | seconds_with_fractional_seconds_format, |
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| 312 | replace_string); |
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| 313 | } |
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| 314 | /* NOTE: replacing posix_zone_string_format must be done BEFORE |
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| 315 | * zone_name_format: "%ZP" & "%Z", if Z is checked first it will |
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| 316 | * incorrectly replace a zone_name where a posix_string should go */ |
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| 317 | if (format.find(posix_zone_string_format) != string_type::npos) { |
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| 318 | if(a_time.zone_abbrev().empty()) { |
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| 319 | // if zone_abbrev() returns an empty string, we want to |
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| 320 | // erase posix_zone_string_format from format |
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| 321 | boost::algorithm::erase_all(format, posix_zone_string_format); |
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| 322 | } |
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| 323 | else{ |
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| 324 | boost::algorithm::replace_all(format, |
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| 325 | posix_zone_string_format, |
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| 326 | a_time.zone_as_posix_string()); |
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| 327 | } |
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| 328 | } |
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| 329 | if (format.find(zone_name_format) != string_type::npos) { |
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| 330 | if(a_time.zone_name().empty()) { |
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| 331 | /* TODO: this'll probably create problems if a user places |
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| 332 | * the zone_*_format flag in the format with a ptime. This |
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| 333 | * code removes the flag from the default formats */ |
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| 334 | |
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| 335 | // if zone_name() returns an empty string, we want to |
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| 336 | // erase zone_name_format & one preceeding space |
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| 337 | std::basic_ostringstream<char_type> ss; |
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| 338 | ss << ' ' << zone_name_format; |
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| 339 | boost::algorithm::erase_all(format, ss.str()); |
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| 340 | } |
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| 341 | else{ |
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| 342 | boost::algorithm::replace_all(format, |
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| 343 | zone_name_format, |
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| 344 | a_time.zone_name()); |
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| 345 | } |
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| 346 | } |
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| 347 | if (format.find(zone_abbrev_format) != string_type::npos) { |
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| 348 | if(a_time.zone_abbrev(false).empty()) { |
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| 349 | /* TODO: this'll probably create problems if a user places |
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| 350 | * the zone_*_format flag in the format with a ptime. This |
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| 351 | * code removes the flag from the default formats */ |
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| 352 | |
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| 353 | // if zone_abbrev() returns an empty string, we want to |
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| 354 | // erase zone_abbrev_format & one preceeding space |
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| 355 | std::basic_ostringstream<char_type> ss; |
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| 356 | ss << ' ' << zone_abbrev_format; |
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| 357 | boost::algorithm::erase_all(format, ss.str()); |
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| 358 | } |
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| 359 | else{ |
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| 360 | boost::algorithm::replace_all(format, |
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| 361 | zone_abbrev_format, |
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| 362 | a_time.zone_abbrev(false)); |
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| 363 | } |
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| 364 | } |
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| 365 | if (format.find(zone_iso_extended_format) != string_type::npos) { |
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| 366 | if(a_time.zone_name(true).empty()) { |
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| 367 | /* TODO: this'll probably create problems if a user places |
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| 368 | * the zone_*_format flag in the format with a ptime. This |
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| 369 | * code removes the flag from the default formats */ |
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| 370 | |
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| 371 | // if zone_name() returns an empty string, we want to |
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| 372 | // erase zone_iso_extended_format from format |
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| 373 | boost::algorithm::erase_all(format, zone_iso_extended_format); |
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| 374 | } |
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| 375 | else{ |
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| 376 | boost::algorithm::replace_all(format, |
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| 377 | zone_iso_extended_format, |
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| 378 | a_time.zone_name(true)); |
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| 379 | } |
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| 380 | } |
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| 381 | |
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| 382 | if (format.find(zone_iso_format) != string_type::npos) { |
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| 383 | if(a_time.zone_abbrev(true).empty()) { |
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| 384 | /* TODO: this'll probably create problems if a user places |
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| 385 | * the zone_*_format flag in the format with a ptime. This |
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| 386 | * code removes the flag from the default formats */ |
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| 387 | |
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| 388 | // if zone_abbrev() returns an empty string, we want to |
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| 389 | // erase zone_iso_format from format |
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| 390 | boost::algorithm::erase_all(format, zone_iso_format); |
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| 391 | } |
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| 392 | else{ |
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| 393 | boost::algorithm::replace_all(format, |
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| 394 | zone_iso_format, |
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| 395 | a_time.zone_abbrev(true)); |
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| 396 | } |
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| 397 | } |
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| 398 | if (format.find(fractional_seconds_format) != string_type::npos) { |
---|
| 399 | // replace %f with nnnnnnn |
---|
| 400 | if (frac_str.empty()) { |
---|
| 401 | frac_str = fractional_seconds_as_string(a_time.time_of_day(), false); |
---|
| 402 | } |
---|
| 403 | boost::algorithm::replace_all(format, |
---|
| 404 | fractional_seconds_format, |
---|
| 405 | frac_str); |
---|
| 406 | } |
---|
| 407 | |
---|
| 408 | if (format.find(fractional_seconds_or_none_format) != string_type::npos) { |
---|
| 409 | // replace %F with nnnnnnn or nothing if fs == 0 |
---|
| 410 | frac_str = |
---|
| 411 | fractional_seconds_as_string(a_time.time_of_day(), true); |
---|
| 412 | if (frac_str.size()) { |
---|
| 413 | char_type sep = std::use_facet<std::numpunct<char_type> >(a_ios.getloc()).decimal_point(); |
---|
| 414 | string_type replace_string; |
---|
| 415 | replace_string += sep; |
---|
| 416 | replace_string += frac_str; |
---|
| 417 | boost::algorithm::replace_all(format, |
---|
| 418 | fractional_seconds_or_none_format, |
---|
| 419 | replace_string); |
---|
| 420 | } |
---|
| 421 | else { |
---|
| 422 | boost::algorithm::erase_all(format, |
---|
| 423 | fractional_seconds_or_none_format); |
---|
| 424 | } |
---|
| 425 | } |
---|
| 426 | |
---|
| 427 | return this->do_put_tm(a_next, a_ios, a_fill, |
---|
| 428 | to_tm(a_time), format); |
---|
| 429 | } |
---|
| 430 | |
---|
| 431 | //! put function for time_duration |
---|
| 432 | OutItrT put(OutItrT a_next, |
---|
| 433 | std::ios_base& a_ios, |
---|
| 434 | char_type a_fill, |
---|
| 435 | const time_duration_type& a_time_dur) const |
---|
| 436 | { |
---|
| 437 | if (a_time_dur.is_special()) { |
---|
| 438 | return this->do_put_special(a_next, a_ios, a_fill, |
---|
| 439 | a_time_dur.get_rep().as_special()); |
---|
| 440 | } |
---|
| 441 | |
---|
| 442 | string_type format(m_time_duration_format); |
---|
| 443 | if (a_time_dur.is_negative()) { |
---|
| 444 | // replace %- with minus sign. Should we use the numpunct facet? |
---|
| 445 | boost::algorithm::replace_all(format, |
---|
| 446 | duration_sign_negative_only, |
---|
| 447 | negative_sign); |
---|
| 448 | // remove all the %+ in the string with '-' |
---|
| 449 | boost::algorithm::replace_all(format, |
---|
| 450 | duration_sign_always, |
---|
| 451 | negative_sign); |
---|
| 452 | } |
---|
| 453 | else { //duration is positive |
---|
| 454 | // remove all the %- combos from the string |
---|
| 455 | boost::algorithm::erase_all(format, duration_sign_negative_only); |
---|
| 456 | // remove all the %+ in the string with '+' |
---|
| 457 | boost::algorithm::replace_all(format, |
---|
| 458 | duration_sign_always, |
---|
| 459 | positive_sign); |
---|
| 460 | } |
---|
| 461 | |
---|
| 462 | // %T and %R have to be replaced here since they are not standard |
---|
| 463 | boost::algorithm::replace_all(format, |
---|
| 464 | boost::as_literal(formats_type::full_24_hour_time_format), |
---|
| 465 | boost::as_literal(formats_type::full_24_hour_time_expanded_format)); |
---|
| 466 | boost::algorithm::replace_all(format, |
---|
| 467 | boost::as_literal(formats_type::short_24_hour_time_format), |
---|
| 468 | boost::as_literal(formats_type::short_24_hour_time_expanded_format)); |
---|
| 469 | |
---|
| 470 | /* |
---|
| 471 | * It is possible for a time duration to span more then 24 hours. |
---|
| 472 | * Standard time_put::put is obliged to behave the same as strftime |
---|
| 473 | * (See ISO 14882-2003 22.2.5.3.1 par. 1) and strftime's behavior is |
---|
| 474 | * unspecified for the case when tm_hour field is outside 0-23 range |
---|
| 475 | * (See ISO 9899-1999 7.23.3.5 par. 3). So we must output %H and %O |
---|
| 476 | * here ourself. |
---|
| 477 | */ |
---|
| 478 | string_type hours_str; |
---|
| 479 | if (format.find(unrestricted_hours_format) != string_type::npos) { |
---|
| 480 | hours_str = hours_as_string(a_time_dur); |
---|
| 481 | boost::algorithm::replace_all(format, unrestricted_hours_format, hours_str); |
---|
| 482 | } |
---|
| 483 | // We still have to process restricted hours format specifier. In order to |
---|
| 484 | // support parseability of durations in ISO format (%H%M%S), we'll have to |
---|
| 485 | // restrict the stringified hours length to 2 characters. |
---|
| 486 | if (format.find(hours_format) != string_type::npos) { |
---|
| 487 | if (hours_str.empty()) |
---|
| 488 | hours_str = hours_as_string(a_time_dur); |
---|
| 489 | BOOST_ASSERT(hours_str.length() <= 2); |
---|
| 490 | boost::algorithm::replace_all(format, hours_format, hours_str); |
---|
| 491 | } |
---|
| 492 | |
---|
| 493 | string_type frac_str; |
---|
| 494 | if (format.find(seconds_with_fractional_seconds_format) != string_type::npos) { |
---|
| 495 | // replace %s with %S.nnn |
---|
| 496 | frac_str = |
---|
| 497 | fractional_seconds_as_string(a_time_dur, false); |
---|
| 498 | char_type sep = std::use_facet<std::numpunct<char_type> >(a_ios.getloc()).decimal_point(); |
---|
| 499 | |
---|
| 500 | string_type replace_string(seconds_format); |
---|
| 501 | replace_string += sep; |
---|
| 502 | replace_string += frac_str; |
---|
| 503 | boost::algorithm::replace_all(format, |
---|
| 504 | seconds_with_fractional_seconds_format, |
---|
| 505 | replace_string); |
---|
| 506 | } |
---|
| 507 | if (format.find(fractional_seconds_format) != string_type::npos) { |
---|
| 508 | // replace %f with nnnnnnn |
---|
| 509 | if (!frac_str.size()) { |
---|
| 510 | frac_str = fractional_seconds_as_string(a_time_dur, false); |
---|
| 511 | } |
---|
| 512 | boost::algorithm::replace_all(format, |
---|
| 513 | fractional_seconds_format, |
---|
| 514 | frac_str); |
---|
| 515 | } |
---|
| 516 | |
---|
| 517 | if (format.find(fractional_seconds_or_none_format) != string_type::npos) { |
---|
| 518 | // replace %F with nnnnnnn or nothing if fs == 0 |
---|
| 519 | frac_str = |
---|
| 520 | fractional_seconds_as_string(a_time_dur, true); |
---|
| 521 | if (frac_str.size()) { |
---|
| 522 | char_type sep = std::use_facet<std::numpunct<char_type> >(a_ios.getloc()).decimal_point(); |
---|
| 523 | string_type replace_string; |
---|
| 524 | replace_string += sep; |
---|
| 525 | replace_string += frac_str; |
---|
| 526 | boost::algorithm::replace_all(format, |
---|
| 527 | fractional_seconds_or_none_format, |
---|
| 528 | replace_string); |
---|
| 529 | } |
---|
| 530 | else { |
---|
| 531 | boost::algorithm::erase_all(format, |
---|
| 532 | fractional_seconds_or_none_format); |
---|
| 533 | } |
---|
| 534 | } |
---|
| 535 | |
---|
| 536 | return this->do_put_tm(a_next, a_ios, a_fill, |
---|
| 537 | to_tm(a_time_dur), format); |
---|
| 538 | } |
---|
| 539 | |
---|
| 540 | OutItrT put(OutItrT next, std::ios_base& a_ios, |
---|
| 541 | char_type fill, const period_type& p) const |
---|
| 542 | { |
---|
| 543 | return this->m_period_formatter.put_period(next, a_ios, fill,p,*this); |
---|
| 544 | } |
---|
| 545 | |
---|
| 546 | |
---|
| 547 | protected: |
---|
| 548 | |
---|
| 549 | static |
---|
| 550 | string_type |
---|
| 551 | fractional_seconds_as_string(const time_duration_type& a_time, |
---|
| 552 | bool null_when_zero) |
---|
| 553 | { |
---|
| 554 | typename time_duration_type::fractional_seconds_type frac_sec = |
---|
| 555 | a_time.fractional_seconds(); |
---|
| 556 | |
---|
| 557 | if (null_when_zero && (frac_sec == 0)) { |
---|
| 558 | return string_type(); |
---|
| 559 | } |
---|
| 560 | |
---|
| 561 | //make sure there is no sign |
---|
| 562 | return integral_as_string( |
---|
| 563 | date_time::absolute_value(frac_sec), |
---|
| 564 | time_duration_type::num_fractional_digits()); |
---|
| 565 | } |
---|
| 566 | |
---|
| 567 | static |
---|
| 568 | string_type |
---|
| 569 | hours_as_string(const time_duration_type& a_time, int width = 2) |
---|
| 570 | { |
---|
| 571 | return integral_as_string(date_time::absolute_value(a_time.hours()), width); |
---|
| 572 | } |
---|
| 573 | |
---|
| 574 | template< typename IntT > |
---|
| 575 | static |
---|
| 576 | string_type |
---|
| 577 | integral_as_string(IntT val, int width = 2) |
---|
| 578 | { |
---|
| 579 | std::basic_ostringstream<char_type> ss; |
---|
| 580 | ss.imbue(std::locale::classic()); // don't want any formatting |
---|
| 581 | ss << std::setw(width) |
---|
| 582 | << std::setfill(static_cast<char_type>('0')); |
---|
| 583 | #if (defined(BOOST_MSVC) && (_MSC_VER < 1300)) |
---|
| 584 | // JDG [7/6/02 VC++ compatibility] |
---|
| 585 | char_type buff[34]; |
---|
| 586 | ss << _i64toa(static_cast<boost::int64_t>(val), buff, 10); |
---|
| 587 | #else |
---|
| 588 | ss << val; |
---|
| 589 | #endif |
---|
| 590 | return ss.str(); |
---|
| 591 | } |
---|
| 592 | |
---|
| 593 | private: |
---|
| 594 | string_type m_time_duration_format; |
---|
| 595 | |
---|
| 596 | }; |
---|
| 597 | |
---|
| 598 | template <class time_type, class CharT, class OutItrT> |
---|
| 599 | std::locale::id time_facet<time_type, CharT, OutItrT>::id; |
---|
| 600 | |
---|
| 601 | template <class time_type, class CharT, class OutItrT> |
---|
| 602 | const typename time_facet<time_type, CharT, OutItrT>::char_type* |
---|
| 603 | time_facet<time_type, CharT, OutItrT>::fractional_seconds_format = time_formats<CharT>::fractional_seconds_format; |
---|
| 604 | |
---|
| 605 | template <class time_type, class CharT, class OutItrT> |
---|
| 606 | const typename time_facet<time_type, CharT, OutItrT>::char_type* |
---|
| 607 | time_facet<time_type, CharT, OutItrT>::fractional_seconds_or_none_format = time_formats<CharT>::fractional_seconds_or_none_format; |
---|
| 608 | |
---|
| 609 | template <class time_type, class CharT, class OutItrT> |
---|
| 610 | const typename time_facet<time_type, CharT, OutItrT>::char_type* |
---|
| 611 | time_facet<time_type, CharT, OutItrT>::seconds_with_fractional_seconds_format = |
---|
| 612 | time_formats<CharT>::seconds_with_fractional_seconds_format; |
---|
| 613 | |
---|
| 614 | |
---|
| 615 | template <class time_type, class CharT, class OutItrT> |
---|
| 616 | const typename time_facet<time_type, CharT, OutItrT>::char_type* |
---|
| 617 | time_facet<time_type, CharT, OutItrT>::zone_name_format = time_formats<CharT>::zone_name_format; |
---|
| 618 | |
---|
| 619 | template <class time_type, class CharT, class OutItrT> |
---|
| 620 | const typename time_facet<time_type, CharT, OutItrT>::char_type* |
---|
| 621 | time_facet<time_type, CharT, OutItrT>::zone_abbrev_format = time_formats<CharT>::zone_abbrev_format; |
---|
| 622 | |
---|
| 623 | template <class time_type, class CharT, class OutItrT> |
---|
| 624 | const typename time_facet<time_type, CharT, OutItrT>::char_type* |
---|
| 625 | time_facet<time_type, CharT, OutItrT>::zone_iso_extended_format =time_formats<CharT>::zone_iso_extended_format; |
---|
| 626 | |
---|
| 627 | template <class time_type, class CharT, class OutItrT> |
---|
| 628 | const typename time_facet<time_type, CharT, OutItrT>::char_type* |
---|
| 629 | time_facet<time_type, CharT, OutItrT>::posix_zone_string_format =time_formats<CharT>::posix_zone_string_format; |
---|
| 630 | |
---|
| 631 | template <class time_type, class CharT, class OutItrT> |
---|
| 632 | const typename time_facet<time_type, CharT, OutItrT>::char_type* |
---|
| 633 | time_facet<time_type, CharT, OutItrT>::zone_iso_format = time_formats<CharT>::zone_iso_format; |
---|
| 634 | |
---|
| 635 | template <class time_type, class CharT, class OutItrT> |
---|
| 636 | const typename time_facet<time_type, CharT, OutItrT>::char_type* |
---|
| 637 | time_facet<time_type, CharT, OutItrT>::seconds_format = time_formats<CharT>::seconds_format; |
---|
| 638 | |
---|
| 639 | template <class time_type, class CharT, class OutItrT> |
---|
| 640 | const typename time_facet<time_type, CharT, OutItrT>::char_type* |
---|
| 641 | time_facet<time_type, CharT, OutItrT>::hours_format = time_formats<CharT>::hours_format; |
---|
| 642 | |
---|
| 643 | template <class time_type, class CharT, class OutItrT> |
---|
| 644 | const typename time_facet<time_type, CharT, OutItrT>::char_type* |
---|
| 645 | time_facet<time_type, CharT, OutItrT>::unrestricted_hours_format = time_formats<CharT>::unrestricted_hours_format; |
---|
| 646 | |
---|
| 647 | template <class time_type, class CharT, class OutItrT> |
---|
| 648 | const typename time_facet<time_type, CharT, OutItrT>::char_type* |
---|
| 649 | time_facet<time_type, CharT, OutItrT>::standard_format = time_formats<CharT>::standard_format; |
---|
| 650 | |
---|
| 651 | template <class time_type, class CharT, class OutItrT> |
---|
| 652 | const typename time_facet<time_type, CharT, OutItrT>::char_type* |
---|
| 653 | time_facet<time_type, CharT, OutItrT>::duration_seperator = time_formats<CharT>::duration_seperator; |
---|
| 654 | |
---|
| 655 | template <class time_type, class CharT, class OutItrT> |
---|
| 656 | const typename time_facet<time_type, CharT, OutItrT>::char_type* |
---|
| 657 | time_facet<time_type, CharT, OutItrT>::negative_sign = time_formats<CharT>::negative_sign; |
---|
| 658 | |
---|
| 659 | template <class time_type, class CharT, class OutItrT> |
---|
| 660 | const typename time_facet<time_type, CharT, OutItrT>::char_type* |
---|
| 661 | time_facet<time_type, CharT, OutItrT>::positive_sign = time_formats<CharT>::positive_sign; |
---|
| 662 | |
---|
| 663 | template <class time_type, class CharT, class OutItrT> |
---|
| 664 | const typename time_facet<time_type, CharT, OutItrT>::char_type* |
---|
| 665 | time_facet<time_type, CharT, OutItrT>::duration_sign_negative_only = time_formats<CharT>::duration_sign_negative_only; |
---|
| 666 | |
---|
| 667 | template <class time_type, class CharT, class OutItrT> |
---|
| 668 | const typename time_facet<time_type, CharT, OutItrT>::char_type* |
---|
| 669 | time_facet<time_type, CharT, OutItrT>::duration_sign_always = time_formats<CharT>::duration_sign_always; |
---|
| 670 | |
---|
| 671 | template <class time_type, class CharT, class OutItrT> |
---|
| 672 | const typename time_facet<time_type,CharT, OutItrT>::char_type* |
---|
| 673 | time_facet<time_type,CharT, OutItrT>::iso_time_format_specifier = time_formats<CharT>::iso_time_format_specifier; |
---|
| 674 | |
---|
| 675 | template <class time_type, class CharT, class OutItrT> |
---|
| 676 | const typename time_facet<time_type, CharT, OutItrT>::char_type* |
---|
| 677 | time_facet<time_type, CharT, OutItrT>::iso_time_format_extended_specifier = time_formats<CharT>::iso_time_format_extended_specifier; |
---|
| 678 | |
---|
| 679 | template <class time_type, class CharT, class OutItrT> |
---|
| 680 | const typename time_facet<time_type, CharT, OutItrT>::char_type* |
---|
| 681 | time_facet<time_type, CharT, OutItrT>::default_time_format = |
---|
| 682 | time_formats<CharT>::default_time_format; |
---|
| 683 | |
---|
| 684 | template <class time_type, class CharT, class OutItrT> |
---|
| 685 | const typename time_facet<time_type, CharT, OutItrT>::char_type* |
---|
| 686 | time_facet<time_type, CharT, OutItrT>::default_time_duration_format = |
---|
| 687 | time_formats<CharT>::default_time_duration_format; |
---|
| 688 | |
---|
| 689 | |
---|
| 690 | //! Facet for format-based input. |
---|
| 691 | /*! |
---|
| 692 | */ |
---|
| 693 | template <class time_type, |
---|
| 694 | class CharT, |
---|
| 695 | class InItrT = std::istreambuf_iterator<CharT, std::char_traits<CharT> > > |
---|
| 696 | class time_input_facet : |
---|
| 697 | public boost::date_time::date_input_facet<typename time_type::date_type , CharT, InItrT> { |
---|
| 698 | public: |
---|
| 699 | typedef typename time_type::date_type date_type; |
---|
| 700 | typedef typename time_type::time_duration_type time_duration_type; |
---|
| 701 | typedef typename time_duration_type::fractional_seconds_type fracional_seconds_type; |
---|
| 702 | typedef boost::date_time::period<time_type,time_duration_type> period_type; |
---|
| 703 | typedef boost::date_time::date_input_facet<typename time_type::date_type, CharT, InItrT> base_type; |
---|
| 704 | typedef typename base_type::duration_type date_duration_type; |
---|
| 705 | typedef typename base_type::year_type year_type; |
---|
| 706 | typedef typename base_type::month_type month_type; |
---|
| 707 | typedef typename base_type::day_type day_type; |
---|
| 708 | typedef typename base_type::string_type string_type; |
---|
| 709 | typedef typename string_type::const_iterator const_itr; |
---|
| 710 | typedef typename base_type::char_type char_type; |
---|
| 711 | typedef typename base_type::format_date_parser_type format_date_parser_type; |
---|
| 712 | typedef typename base_type::period_parser_type period_parser_type; |
---|
| 713 | typedef typename base_type::special_values_parser_type special_values_parser_type; |
---|
| 714 | typedef typename base_type::date_gen_parser_type date_gen_parser_type; |
---|
| 715 | typedef typename base_type::special_values_parser_type::match_results match_results; |
---|
| 716 | |
---|
| 717 | static const char_type* fractional_seconds_format; // f |
---|
| 718 | static const char_type* fractional_seconds_or_none_format; // F |
---|
| 719 | static const char_type* seconds_with_fractional_seconds_format; // s |
---|
| 720 | static const char_type* seconds_format; // S |
---|
| 721 | static const char_type* standard_format; // x X |
---|
| 722 | static const char_type* zone_abbrev_format; // z |
---|
| 723 | static const char_type* zone_name_format; // Z |
---|
| 724 | static const char_type* zone_iso_format; // q |
---|
| 725 | static const char_type* zone_iso_extended_format; // Q |
---|
| 726 | static const char_type* duration_seperator; |
---|
| 727 | static const char_type* iso_time_format_specifier; |
---|
| 728 | static const char_type* iso_time_format_extended_specifier; |
---|
| 729 | static const char_type* default_time_input_format; |
---|
| 730 | static const char_type* default_time_duration_format; |
---|
| 731 | static std::locale::id id; |
---|
| 732 | |
---|
| 733 | //! Constructor that takes a format string for a ptime |
---|
| 734 | explicit time_input_facet(const string_type& format, ::size_t a_ref = 0) |
---|
| 735 | : base_type(format, a_ref), |
---|
| 736 | m_time_duration_format(default_time_duration_format) |
---|
| 737 | { } |
---|
| 738 | |
---|
| 739 | explicit time_input_facet(const string_type& format, |
---|
| 740 | const format_date_parser_type& date_parser, |
---|
| 741 | const special_values_parser_type& sv_parser, |
---|
| 742 | const period_parser_type& per_parser, |
---|
| 743 | const date_gen_parser_type& date_gen_parser, |
---|
| 744 | ::size_t a_ref = 0) |
---|
| 745 | : base_type(format, |
---|
| 746 | date_parser, |
---|
| 747 | sv_parser, |
---|
| 748 | per_parser, |
---|
| 749 | date_gen_parser, |
---|
| 750 | a_ref), |
---|
| 751 | m_time_duration_format(default_time_duration_format) |
---|
| 752 | {} |
---|
| 753 | |
---|
| 754 | //! sets default formats for ptime, local_date_time, and time_duration |
---|
| 755 | explicit time_input_facet(::size_t a_ref = 0) |
---|
| 756 | : base_type(default_time_input_format, a_ref), |
---|
| 757 | m_time_duration_format(default_time_duration_format) |
---|
| 758 | { } |
---|
| 759 | |
---|
| 760 | //! Set the format for time_duration |
---|
| 761 | void time_duration_format(const char_type* const format) { |
---|
| 762 | m_time_duration_format = format; |
---|
| 763 | } |
---|
| 764 | virtual void set_iso_format() |
---|
| 765 | { |
---|
| 766 | this->m_format = iso_time_format_specifier; |
---|
| 767 | } |
---|
| 768 | virtual void set_iso_extended_format() |
---|
| 769 | { |
---|
| 770 | this->m_format = iso_time_format_extended_specifier; |
---|
| 771 | } |
---|
| 772 | |
---|
| 773 | InItrT get(InItrT& sitr, |
---|
| 774 | InItrT& stream_end, |
---|
| 775 | std::ios_base& a_ios, |
---|
| 776 | period_type& p) const |
---|
| 777 | { |
---|
| 778 | p = this->m_period_parser.get_period(sitr, |
---|
| 779 | stream_end, |
---|
| 780 | a_ios, |
---|
| 781 | p, |
---|
| 782 | time_duration_type::unit(), |
---|
| 783 | *this); |
---|
| 784 | return sitr; |
---|
| 785 | } |
---|
| 786 | |
---|
| 787 | //default ptime format is YYYY-Mon-DD HH:MM:SS[.fff...][ zzz] |
---|
| 788 | //default time_duration format is %H:%M:%S%F HH:MM:SS[.fff...] |
---|
| 789 | |
---|
| 790 | InItrT get(InItrT& sitr, |
---|
| 791 | InItrT& stream_end, |
---|
| 792 | std::ios_base& a_ios, |
---|
| 793 | time_duration_type& td) const |
---|
| 794 | { |
---|
| 795 | // skip leading whitespace |
---|
| 796 | while((sitr != stream_end) && std::isspace(*sitr)) { ++sitr; } |
---|
| 797 | |
---|
| 798 | bool use_current_char = false; |
---|
| 799 | |
---|
| 800 | // num_get will consume the +/-, we may need a copy if special_value |
---|
| 801 | char_type c = '\0'; |
---|
| 802 | if((sitr != stream_end) && (*sitr == '-' || *sitr == '+')) { |
---|
| 803 | c = *sitr; |
---|
| 804 | } |
---|
| 805 | |
---|
| 806 | typedef typename time_duration_type::hour_type hour_type; |
---|
| 807 | typedef typename time_duration_type::min_type min_type; |
---|
| 808 | typedef typename time_duration_type::sec_type sec_type; |
---|
| 809 | |
---|
| 810 | hour_type hour = 0; |
---|
| 811 | min_type min = 0; |
---|
| 812 | sec_type sec = 0; |
---|
| 813 | typename time_duration_type::fractional_seconds_type frac(0); |
---|
| 814 | |
---|
| 815 | typedef std::num_get<CharT, InItrT> num_get; |
---|
| 816 | if(!std::has_facet<num_get>(a_ios.getloc())) { |
---|
| 817 | num_get* ng = new num_get(); |
---|
| 818 | std::locale loc = std::locale(a_ios.getloc(), ng); |
---|
| 819 | a_ios.imbue(loc); |
---|
| 820 | } |
---|
| 821 | |
---|
| 822 | const_itr itr(m_time_duration_format.begin()); |
---|
| 823 | while (itr != m_time_duration_format.end() && (sitr != stream_end)) { |
---|
| 824 | if (*itr == '%') { |
---|
| 825 | ++itr; |
---|
| 826 | if (*itr != '%') { |
---|
| 827 | switch(*itr) { |
---|
| 828 | case 'O': |
---|
| 829 | { |
---|
| 830 | // A period may span more than 24 hours. In that case the format |
---|
| 831 | // string should be composed with the unrestricted hours specifier. |
---|
| 832 | hour = var_string_to_int<hour_type, CharT>(sitr, stream_end, |
---|
| 833 | std::numeric_limits<hour_type>::digits10 + 1); |
---|
| 834 | if(hour == -1){ |
---|
| 835 | return check_special_value(sitr, stream_end, td, c); |
---|
| 836 | } |
---|
| 837 | break; |
---|
| 838 | } |
---|
| 839 | case 'H': |
---|
| 840 | { |
---|
| 841 | match_results mr; |
---|
| 842 | hour = fixed_string_to_int<hour_type, CharT>(sitr, stream_end, mr, 2); |
---|
| 843 | if(hour == -1){ |
---|
| 844 | return check_special_value(sitr, stream_end, td, c); |
---|
| 845 | } |
---|
| 846 | break; |
---|
| 847 | } |
---|
| 848 | case 'M': |
---|
| 849 | { |
---|
| 850 | match_results mr; |
---|
| 851 | min = fixed_string_to_int<min_type, CharT>(sitr, stream_end, mr, 2); |
---|
| 852 | if(min == -1){ |
---|
| 853 | return check_special_value(sitr, stream_end, td, c); |
---|
| 854 | } |
---|
| 855 | break; |
---|
| 856 | } |
---|
| 857 | case 's': |
---|
| 858 | case 'S': |
---|
| 859 | { |
---|
| 860 | match_results mr; |
---|
| 861 | sec = fixed_string_to_int<sec_type, CharT>(sitr, stream_end, mr, 2); |
---|
| 862 | if(sec == -1){ |
---|
| 863 | return check_special_value(sitr, stream_end, td, c); |
---|
| 864 | } |
---|
| 865 | if (*itr == 'S') |
---|
| 866 | break; |
---|
| 867 | // %s is the same as %S%f so we drop through into %f |
---|
| 868 | } |
---|
| 869 | case 'f': |
---|
| 870 | { |
---|
| 871 | // check for decimal, check special_values if missing |
---|
| 872 | if(*sitr == '.') { |
---|
| 873 | ++sitr; |
---|
| 874 | parse_frac_type(sitr, stream_end, frac); |
---|
| 875 | // sitr will point to next expected char after this parsing |
---|
| 876 | // is complete so no need to advance it |
---|
| 877 | use_current_char = true; |
---|
| 878 | } |
---|
| 879 | else { |
---|
| 880 | return check_special_value(sitr, stream_end, td, c); |
---|
| 881 | } |
---|
| 882 | break; |
---|
| 883 | } |
---|
| 884 | case 'F': |
---|
| 885 | { |
---|
| 886 | // check for decimal, skip if missing |
---|
| 887 | if(*sitr == '.') { |
---|
| 888 | ++sitr; |
---|
| 889 | parse_frac_type(sitr, stream_end, frac); |
---|
| 890 | // sitr will point to next expected char after this parsing |
---|
| 891 | // is complete so no need to advance it |
---|
| 892 | use_current_char = true; |
---|
| 893 | } |
---|
| 894 | else { |
---|
| 895 | // nothing was parsed so we don't want to advance sitr |
---|
| 896 | use_current_char = true; |
---|
| 897 | } |
---|
| 898 | break; |
---|
| 899 | } |
---|
| 900 | default: |
---|
| 901 | {} // ignore what we don't understand? |
---|
| 902 | }// switch |
---|
| 903 | } |
---|
| 904 | else { // itr == '%', second consecutive |
---|
| 905 | ++sitr; |
---|
| 906 | } |
---|
| 907 | |
---|
| 908 | ++itr; //advance past format specifier |
---|
| 909 | } |
---|
| 910 | else { //skip past chars in format and in buffer |
---|
| 911 | ++itr; |
---|
| 912 | // set use_current_char when sitr is already |
---|
| 913 | // pointing at the next character to process |
---|
| 914 | if (use_current_char) { |
---|
| 915 | use_current_char = false; |
---|
| 916 | } |
---|
| 917 | else { |
---|
| 918 | ++sitr; |
---|
| 919 | } |
---|
| 920 | } |
---|
| 921 | } |
---|
| 922 | |
---|
| 923 | td = time_duration_type(hour, min, sec, frac); |
---|
| 924 | return sitr; |
---|
| 925 | } |
---|
| 926 | |
---|
| 927 | |
---|
| 928 | //! Parses a time object from the input stream |
---|
| 929 | InItrT get(InItrT& sitr, |
---|
| 930 | InItrT& stream_end, |
---|
| 931 | std::ios_base& a_ios, |
---|
| 932 | time_type& t) const |
---|
| 933 | { |
---|
| 934 | string_type tz_str; |
---|
| 935 | return get(sitr, stream_end, a_ios, t, tz_str, false); |
---|
| 936 | } |
---|
| 937 | //! Expects a time_zone in the input stream |
---|
| 938 | InItrT get_local_time(InItrT& sitr, |
---|
| 939 | InItrT& stream_end, |
---|
| 940 | std::ios_base& a_ios, |
---|
| 941 | time_type& t, |
---|
| 942 | string_type& tz_str) const |
---|
| 943 | { |
---|
| 944 | return get(sitr, stream_end, a_ios, t, tz_str, true); |
---|
| 945 | } |
---|
| 946 | |
---|
| 947 | protected: |
---|
| 948 | |
---|
| 949 | InItrT get(InItrT& sitr, |
---|
| 950 | InItrT& stream_end, |
---|
| 951 | std::ios_base& a_ios, |
---|
| 952 | time_type& t, |
---|
| 953 | string_type& tz_str, |
---|
| 954 | bool time_is_local) const |
---|
| 955 | { |
---|
| 956 | // skip leading whitespace |
---|
| 957 | while((sitr != stream_end) && std::isspace(*sitr)) { ++sitr; } |
---|
| 958 | |
---|
| 959 | bool use_current_char = false; |
---|
| 960 | bool use_current_format_char = false; // used whith two character flags |
---|
| 961 | |
---|
| 962 | // num_get will consume the +/-, we may need a copy if special_value |
---|
| 963 | char_type c = '\0'; |
---|
| 964 | if((sitr != stream_end) && (*sitr == '-' || *sitr == '+')) { |
---|
| 965 | c = *sitr; |
---|
| 966 | } |
---|
| 967 | |
---|
| 968 | typedef typename time_duration_type::hour_type hour_type; |
---|
| 969 | typedef typename time_duration_type::min_type min_type; |
---|
| 970 | typedef typename time_duration_type::sec_type sec_type; |
---|
| 971 | |
---|
| 972 | // time elements |
---|
| 973 | hour_type hour = 0; |
---|
| 974 | min_type min = 0; |
---|
| 975 | sec_type sec = 0; |
---|
| 976 | typename time_duration_type::fractional_seconds_type frac(0); |
---|
| 977 | // date elements |
---|
| 978 | short day_of_year(0); |
---|
| 979 | /* Initialized the following to their minimum values. These intermediate |
---|
| 980 | * objects are used so we get specific exceptions when part of the input |
---|
| 981 | * is unparsable. |
---|
| 982 | * Ex: "205-Jan-15" will throw a bad_year, "2005-Jsn-15"- bad_month, etc.*/ |
---|
| 983 | year_type t_year(1400); |
---|
| 984 | month_type t_month(1); |
---|
| 985 | day_type t_day(1); |
---|
| 986 | |
---|
| 987 | typedef std::num_get<CharT, InItrT> num_get; |
---|
| 988 | if(!std::has_facet<num_get>(a_ios.getloc())) { |
---|
| 989 | num_get* ng = new num_get(); |
---|
| 990 | std::locale loc = std::locale(a_ios.getloc(), ng); |
---|
| 991 | a_ios.imbue(loc); |
---|
| 992 | } |
---|
| 993 | |
---|
| 994 | const_itr itr(this->m_format.begin()); |
---|
| 995 | while (itr != this->m_format.end() && (sitr != stream_end)) { |
---|
| 996 | if (*itr == '%') { |
---|
| 997 | ++itr; |
---|
| 998 | if (*itr != '%') { |
---|
| 999 | // the cases are grouped by date & time flags - not alphabetical order |
---|
| 1000 | switch(*itr) { |
---|
| 1001 | // date flags |
---|
| 1002 | case 'Y': |
---|
| 1003 | case 'y': |
---|
| 1004 | { |
---|
| 1005 | char_type cs[3] = { '%', *itr }; |
---|
| 1006 | string_type s(cs); |
---|
| 1007 | match_results mr; |
---|
| 1008 | try { |
---|
| 1009 | t_year = this->m_parser.parse_year(sitr, stream_end, s, mr); |
---|
| 1010 | } |
---|
| 1011 | catch(std::out_of_range&) { // base class for bad_year exception |
---|
| 1012 | if(this->m_sv_parser.match(sitr, stream_end, mr)) { |
---|
| 1013 | t = time_type(static_cast<special_values>(mr.current_match)); |
---|
| 1014 | return sitr; |
---|
| 1015 | } |
---|
| 1016 | else { |
---|
| 1017 | throw; // rethrow bad_year |
---|
| 1018 | } |
---|
| 1019 | } |
---|
| 1020 | break; |
---|
| 1021 | } |
---|
| 1022 | case 'B': |
---|
| 1023 | case 'b': |
---|
| 1024 | case 'm': |
---|
| 1025 | { |
---|
| 1026 | char_type cs[3] = { '%', *itr }; |
---|
| 1027 | string_type s(cs); |
---|
| 1028 | match_results mr; |
---|
| 1029 | try { |
---|
| 1030 | t_month = this->m_parser.parse_month(sitr, stream_end, s, mr); |
---|
| 1031 | } |
---|
| 1032 | catch(std::out_of_range&) { // base class for bad_month exception |
---|
| 1033 | if(this->m_sv_parser.match(sitr, stream_end, mr)) { |
---|
| 1034 | t = time_type(static_cast<special_values>(mr.current_match)); |
---|
| 1035 | return sitr; |
---|
| 1036 | } |
---|
| 1037 | else { |
---|
| 1038 | throw; // rethrow bad_month |
---|
| 1039 | } |
---|
| 1040 | } |
---|
| 1041 | // did m_parser already advance sitr to next char? |
---|
| 1042 | if(mr.has_remaining()) { |
---|
| 1043 | use_current_char = true; |
---|
| 1044 | } |
---|
| 1045 | break; |
---|
| 1046 | } |
---|
| 1047 | case 'a': |
---|
| 1048 | case 'A': |
---|
| 1049 | case 'w': |
---|
| 1050 | { |
---|
| 1051 | // weekday is not used in construction but we need to get it out of the stream |
---|
| 1052 | char_type cs[3] = { '%', *itr }; |
---|
| 1053 | string_type s(cs); |
---|
| 1054 | match_results mr; |
---|
| 1055 | typename date_type::day_of_week_type wd(0); |
---|
| 1056 | try { |
---|
| 1057 | wd = this->m_parser.parse_weekday(sitr, stream_end, s, mr); |
---|
| 1058 | } |
---|
| 1059 | catch(std::out_of_range&) { // base class for bad_weekday exception |
---|
| 1060 | if(this->m_sv_parser.match(sitr, stream_end, mr)) { |
---|
| 1061 | t = time_type(static_cast<special_values>(mr.current_match)); |
---|
| 1062 | return sitr; |
---|
| 1063 | } |
---|
| 1064 | else { |
---|
| 1065 | throw; // rethrow bad_weekday |
---|
| 1066 | } |
---|
| 1067 | } |
---|
| 1068 | // did m_parser already advance sitr to next char? |
---|
| 1069 | if(mr.has_remaining()) { |
---|
| 1070 | use_current_char = true; |
---|
| 1071 | } |
---|
| 1072 | break; |
---|
| 1073 | } |
---|
| 1074 | case 'j': |
---|
| 1075 | { |
---|
| 1076 | // code that gets julian day (from format_date_parser) |
---|
| 1077 | match_results mr; |
---|
| 1078 | day_of_year = fixed_string_to_int<unsigned short, CharT>(sitr, stream_end, mr, 3); |
---|
| 1079 | if(day_of_year == -1) { |
---|
| 1080 | if(this->m_sv_parser.match(sitr, stream_end, mr)) { |
---|
| 1081 | t = time_type(static_cast<special_values>(mr.current_match)); |
---|
| 1082 | return sitr; |
---|
| 1083 | } |
---|
| 1084 | } |
---|
| 1085 | // these next two lines are so we get an exception with bad input |
---|
| 1086 | typedef typename time_type::date_type::day_of_year_type day_of_year_type; |
---|
| 1087 | day_of_year_type t_day_of_year(day_of_year); |
---|
| 1088 | break; |
---|
| 1089 | } |
---|
| 1090 | case 'd': |
---|
| 1091 | { |
---|
| 1092 | try { |
---|
| 1093 | t_day = this->m_parser.parse_day_of_month(sitr, stream_end); |
---|
| 1094 | } |
---|
| 1095 | catch(std::out_of_range&) { // base class for exception bad_day_of_month |
---|
| 1096 | match_results mr; |
---|
| 1097 | if(this->m_sv_parser.match(sitr, stream_end, mr)) { |
---|
| 1098 | t = time_type(static_cast<special_values>(mr.current_match)); |
---|
| 1099 | return sitr; |
---|
| 1100 | } |
---|
| 1101 | else { |
---|
| 1102 | throw; // rethrow bad_day_of_month |
---|
| 1103 | } |
---|
| 1104 | } |
---|
| 1105 | break; |
---|
| 1106 | } |
---|
| 1107 | // time flags |
---|
| 1108 | case 'H': |
---|
| 1109 | { |
---|
| 1110 | match_results mr; |
---|
| 1111 | hour = fixed_string_to_int<hour_type, CharT>(sitr, stream_end, mr, 2); |
---|
| 1112 | if(hour == -1){ |
---|
| 1113 | return check_special_value(sitr, stream_end, t, c); |
---|
| 1114 | } |
---|
| 1115 | break; |
---|
| 1116 | } |
---|
| 1117 | case 'M': |
---|
| 1118 | { |
---|
| 1119 | match_results mr; |
---|
| 1120 | min = fixed_string_to_int<min_type, CharT>(sitr, stream_end, mr, 2); |
---|
| 1121 | if(min == -1){ |
---|
| 1122 | return check_special_value(sitr, stream_end, t, c); |
---|
| 1123 | } |
---|
| 1124 | break; |
---|
| 1125 | } |
---|
| 1126 | case 's': |
---|
| 1127 | case 'S': |
---|
| 1128 | { |
---|
| 1129 | match_results mr; |
---|
| 1130 | sec = fixed_string_to_int<sec_type, CharT>(sitr, stream_end, mr, 2); |
---|
| 1131 | if(sec == -1){ |
---|
| 1132 | return check_special_value(sitr, stream_end, t, c); |
---|
| 1133 | } |
---|
| 1134 | if (*itr == 'S') |
---|
| 1135 | break; |
---|
| 1136 | // %s is the same as %S%f so we drop through into %f |
---|
| 1137 | } |
---|
| 1138 | case 'f': |
---|
| 1139 | { |
---|
| 1140 | // check for decimal, check SV if missing |
---|
| 1141 | if(*sitr == '.') { |
---|
| 1142 | ++sitr; |
---|
| 1143 | parse_frac_type(sitr, stream_end, frac); |
---|
| 1144 | // sitr will point to next expected char after this parsing |
---|
| 1145 | // is complete so no need to advance it |
---|
| 1146 | use_current_char = true; |
---|
| 1147 | } |
---|
| 1148 | else { |
---|
| 1149 | return check_special_value(sitr, stream_end, t, c); |
---|
| 1150 | } |
---|
| 1151 | break; |
---|
| 1152 | } |
---|
| 1153 | case 'F': |
---|
| 1154 | { |
---|
| 1155 | // check for decimal, skip if missing |
---|
| 1156 | if(*sitr == '.') { |
---|
| 1157 | ++sitr; |
---|
| 1158 | parse_frac_type(sitr, stream_end, frac); |
---|
| 1159 | // sitr will point to next expected char after this parsing |
---|
| 1160 | // is complete so no need to advance it |
---|
| 1161 | use_current_char = true; |
---|
| 1162 | } |
---|
| 1163 | else { |
---|
| 1164 | // nothing was parsed so we don't want to advance sitr |
---|
| 1165 | use_current_char = true; |
---|
| 1166 | } |
---|
| 1167 | break; |
---|
| 1168 | } |
---|
| 1169 | // time_zone flags |
---|
| 1170 | //case 'q': |
---|
| 1171 | //case 'Q': |
---|
| 1172 | //case 'z': |
---|
| 1173 | case 'Z': |
---|
| 1174 | { |
---|
| 1175 | if(time_is_local) { // skip if 't' is a ptime |
---|
| 1176 | ++itr; |
---|
| 1177 | if(*itr == 'P') { |
---|
| 1178 | // skip leading whitespace |
---|
| 1179 | while((sitr != stream_end) && std::isspace(*sitr)) { ++sitr; } |
---|
| 1180 | // parse zone |
---|
| 1181 | while((sitr != stream_end) && (!std::isspace(*sitr))) { |
---|
| 1182 | tz_str += *sitr; |
---|
| 1183 | ++sitr; |
---|
| 1184 | } |
---|
| 1185 | } |
---|
| 1186 | else { |
---|
| 1187 | use_current_format_char = true; |
---|
| 1188 | } |
---|
| 1189 | |
---|
| 1190 | } |
---|
| 1191 | else { |
---|
| 1192 | // nothing was parsed so we don't want to advance sitr |
---|
| 1193 | use_current_char = true; |
---|
| 1194 | } |
---|
| 1195 | |
---|
| 1196 | break; |
---|
| 1197 | } |
---|
| 1198 | default: |
---|
| 1199 | {} // ignore what we don't understand? |
---|
| 1200 | }// switch |
---|
| 1201 | } |
---|
| 1202 | else { // itr == '%', second consecutive |
---|
| 1203 | ++sitr; |
---|
| 1204 | } |
---|
| 1205 | |
---|
| 1206 | if(use_current_format_char) { |
---|
| 1207 | use_current_format_char = false; |
---|
| 1208 | } |
---|
| 1209 | else { |
---|
| 1210 | ++itr; //advance past format specifier |
---|
| 1211 | } |
---|
| 1212 | |
---|
| 1213 | } |
---|
| 1214 | else { //skip past chars in format and in buffer |
---|
| 1215 | ++itr; |
---|
| 1216 | // set use_current_char when sitr is already |
---|
| 1217 | // pointing at the next character to process |
---|
| 1218 | if (use_current_char) { |
---|
| 1219 | use_current_char = false; |
---|
| 1220 | } |
---|
| 1221 | else { |
---|
| 1222 | ++sitr; |
---|
| 1223 | } |
---|
| 1224 | } |
---|
| 1225 | } |
---|
| 1226 | |
---|
| 1227 | date_type d(not_a_date_time); |
---|
| 1228 | if (day_of_year > 0) { |
---|
| 1229 | d = date_type(static_cast<unsigned short>(t_year-1),12,31) + date_duration_type(day_of_year); |
---|
| 1230 | } |
---|
| 1231 | else { |
---|
| 1232 | d = date_type(t_year, t_month, t_day); |
---|
| 1233 | } |
---|
| 1234 | |
---|
| 1235 | time_duration_type td(hour, min, sec, frac); |
---|
| 1236 | t = time_type(d, td); |
---|
| 1237 | return sitr; |
---|
| 1238 | } |
---|
| 1239 | |
---|
| 1240 | //! Helper function to check for special_value |
---|
| 1241 | /*! First character may have been consumed during original parse |
---|
| 1242 | * attempt. Parameter 'c' should be a copy of that character. |
---|
| 1243 | * Throws ios_base::failure if parse fails. */ |
---|
| 1244 | template<class temporal_type> |
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| 1245 | inline |
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| 1246 | InItrT check_special_value(InItrT& sitr,InItrT& stream_end, temporal_type& tt, char_type c='\0') const |
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| 1247 | { |
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| 1248 | match_results mr; |
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| 1249 | if((c == '-' || c == '+') && (*sitr != c)) { // was the first character consumed? |
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| 1250 | mr.cache += c; |
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| 1251 | } |
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| 1252 | this->m_sv_parser.match(sitr, stream_end, mr); |
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| 1253 | if(mr.current_match == match_results::PARSE_ERROR) { |
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| 1254 | std::string tmp = convert_string_type<char_type, char>(mr.cache); |
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| 1255 | boost::throw_exception(std::ios_base::failure("Parse failed. No match found for '" + tmp + "'")); |
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| 1256 | BOOST_DATE_TIME_UNREACHABLE_EXPRESSION(return sitr); // should never reach |
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| 1257 | } |
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| 1258 | tt = temporal_type(static_cast<special_values>(mr.current_match)); |
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| 1259 | return sitr; |
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| 1260 | } |
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| 1261 | |
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| 1262 | //! Helper function for parsing a fractional second type from the stream |
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| 1263 | void parse_frac_type(InItrT& sitr, |
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| 1264 | InItrT& stream_end, |
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| 1265 | fracional_seconds_type& frac) const |
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| 1266 | { |
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| 1267 | string_type cache; |
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| 1268 | while((sitr != stream_end) && std::isdigit(*sitr)) { |
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| 1269 | cache += *sitr; |
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| 1270 | ++sitr; |
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| 1271 | } |
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| 1272 | if(cache.size() > 0) { |
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| 1273 | unsigned short precision = time_duration_type::num_fractional_digits(); |
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| 1274 | // input may be only the first few decimal places |
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| 1275 | if(cache.size() < precision) { |
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| 1276 | frac = lexical_cast<fracional_seconds_type>(cache); |
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| 1277 | frac = decimal_adjust(frac, static_cast<unsigned short>(precision - cache.size())); |
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| 1278 | } |
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| 1279 | else { |
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| 1280 | // if input has too many decimal places, drop excess digits |
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| 1281 | frac = lexical_cast<fracional_seconds_type>(cache.substr(0, precision)); |
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| 1282 | } |
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| 1283 | } |
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| 1284 | } |
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| 1285 | |
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| 1286 | private: |
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| 1287 | string_type m_time_duration_format; |
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| 1288 | |
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| 1289 | //! Helper function to adjust trailing zeros when parsing fractional digits |
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| 1290 | template<class int_type> |
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| 1291 | inline |
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| 1292 | int_type decimal_adjust(int_type val, const unsigned short places) const |
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| 1293 | { |
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| 1294 | unsigned long factor = 1; |
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| 1295 | for(int i = 0; i < places; ++i){ |
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| 1296 | factor *= 10; // shift decimal to the right |
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| 1297 | } |
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| 1298 | return val * factor; |
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| 1299 | } |
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| 1300 | |
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| 1301 | }; |
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| 1302 | |
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| 1303 | template <class time_type, class CharT, class InItrT> |
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| 1304 | std::locale::id time_input_facet<time_type, CharT, InItrT>::id; |
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| 1305 | |
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| 1306 | template <class time_type, class CharT, class InItrT> |
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| 1307 | const typename time_input_facet<time_type, CharT, InItrT>::char_type* |
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| 1308 | time_input_facet<time_type, CharT, InItrT>::fractional_seconds_format = time_formats<CharT>::fractional_seconds_format; |
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| 1309 | |
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| 1310 | template <class time_type, class CharT, class InItrT> |
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| 1311 | const typename time_input_facet<time_type, CharT, InItrT>::char_type* |
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| 1312 | time_input_facet<time_type, CharT, InItrT>::fractional_seconds_or_none_format = time_formats<CharT>::fractional_seconds_or_none_format; |
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| 1313 | |
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| 1314 | template <class time_type, class CharT, class InItrT> |
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| 1315 | const typename time_input_facet<time_type, CharT, InItrT>::char_type* |
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| 1316 | time_input_facet<time_type, CharT, InItrT>::seconds_with_fractional_seconds_format = time_formats<CharT>::seconds_with_fractional_seconds_format; |
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| 1317 | |
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| 1318 | template <class time_type, class CharT, class InItrT> |
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| 1319 | const typename time_input_facet<time_type, CharT, InItrT>::char_type* |
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| 1320 | time_input_facet<time_type, CharT, InItrT>::seconds_format = time_formats<CharT>::seconds_format; |
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| 1321 | |
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| 1322 | template <class time_type, class CharT, class InItrT> |
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| 1323 | const typename time_input_facet<time_type, CharT, InItrT>::char_type* |
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| 1324 | time_input_facet<time_type, CharT, InItrT>::standard_format = time_formats<CharT>::standard_format; |
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| 1325 | |
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| 1326 | template <class time_type, class CharT, class InItrT> |
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| 1327 | const typename time_input_facet<time_type, CharT, InItrT>::char_type* |
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| 1328 | time_input_facet<time_type, CharT, InItrT>::zone_abbrev_format = time_formats<CharT>::zone_abbrev_format; |
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| 1329 | |
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| 1330 | template <class time_type, class CharT, class InItrT> |
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| 1331 | const typename time_input_facet<time_type, CharT, InItrT>::char_type* |
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| 1332 | time_input_facet<time_type, CharT, InItrT>::zone_name_format = time_formats<CharT>::zone_name_format; |
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| 1333 | |
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| 1334 | template <class time_type, class CharT, class InItrT> |
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| 1335 | const typename time_input_facet<time_type, CharT, InItrT>::char_type* |
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| 1336 | time_input_facet<time_type, CharT, InItrT>::zone_iso_format = time_formats<CharT>::zone_iso_format; |
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| 1337 | |
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| 1338 | template <class time_type, class CharT, class InItrT> |
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| 1339 | const typename time_input_facet<time_type, CharT, InItrT>::char_type* |
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| 1340 | time_input_facet<time_type, CharT, InItrT>::zone_iso_extended_format = time_formats<CharT>::zone_iso_extended_format; |
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| 1341 | |
---|
| 1342 | template <class time_type, class CharT, class InItrT> |
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| 1343 | const typename time_input_facet<time_type, CharT, InItrT>::char_type* |
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| 1344 | time_input_facet<time_type, CharT, InItrT>::duration_seperator = time_formats<CharT>::duration_seperator; |
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| 1345 | |
---|
| 1346 | template <class time_type, class CharT, class InItrT> |
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| 1347 | const typename time_input_facet<time_type, CharT, InItrT>::char_type* |
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| 1348 | time_input_facet<time_type, CharT, InItrT>::iso_time_format_specifier = time_formats<CharT>::iso_time_format_specifier; |
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| 1349 | |
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| 1350 | template <class time_type, class CharT, class InItrT> |
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| 1351 | const typename time_input_facet<time_type, CharT, InItrT>::char_type* |
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| 1352 | time_input_facet<time_type, CharT, InItrT>::iso_time_format_extended_specifier = time_formats<CharT>::iso_time_format_extended_specifier; |
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| 1353 | |
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| 1354 | template <class time_type, class CharT, class InItrT> |
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| 1355 | const typename time_input_facet<time_type, CharT, InItrT>::char_type* |
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| 1356 | time_input_facet<time_type, CharT, InItrT>::default_time_input_format = time_formats<CharT>::default_time_input_format; |
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| 1357 | |
---|
| 1358 | template <class time_type, class CharT, class InItrT> |
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| 1359 | const typename time_input_facet<time_type, CharT, InItrT>::char_type* |
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| 1360 | time_input_facet<time_type, CharT, InItrT>::default_time_duration_format = time_formats<CharT>::default_time_duration_format; |
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| 1361 | |
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| 1362 | |
---|
| 1363 | } } // namespaces |
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| 1364 | |
---|
| 1365 | |
---|
| 1366 | #endif |
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| 1367 | |
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