1 | #ifndef DATE_TIME_POSIX_TIME_IO_HPP__
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2 | #define DATE_TIME_POSIX_TIME_IO_HPP__
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3 |
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4 | /* Copyright (c) 2004-2005 CrystalClear Software, Inc.
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5 | * Use, modification and distribution is subject to the
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6 | * Boost Software License, Version 1.0. (See accompanying
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7 | * file LICENSE-1.0 or http://www.boost.org/LICENSE-1.0)
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8 | * Author: Jeff Garland, Bart Garst
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9 | * $Date: 2005/06/28 13:11:46 $
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10 | */
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11 |
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12 | #include "boost/date_time/time_facet.hpp"
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13 | #include "boost/date_time/period_formatter.hpp"
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14 | #include "boost/date_time/posix_time/time_period.hpp"
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15 | #include "boost/date_time/posix_time/posix_time_duration.hpp"
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16 | //#include "boost/date_time/gregorian/gregorian_io.hpp"
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17 | #include "boost/io/ios_state.hpp"
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18 | #include <iostream>
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19 | #include <locale>
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20 |
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21 | namespace boost {
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22 | namespace posix_time {
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23 |
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24 |
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25 | //! wptime_facet is depricated and will be phased out. use wtime_facet instead
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26 | //typedef boost::date_time::time_facet<ptime, wchar_t> wptime_facet;
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27 | //! ptime_facet is depricated and will be phased out. use time_facet instead
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28 | //typedef boost::date_time::time_facet<ptime, char> ptime_facet;
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29 |
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30 | //! wptime_input_facet is depricated and will be phased out. use wtime_input_facet instead
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31 | //typedef boost::date_time::time_input_facet<ptime,wchar_t> wptime_input_facet;
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32 | //! ptime_input_facet is depricated and will be phased out. use time_input_facet instead
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33 | //typedef boost::date_time::time_input_facet<ptime,char> ptime_input_facet;
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34 |
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35 | typedef boost::date_time::time_facet<ptime, wchar_t> wtime_facet;
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36 | typedef boost::date_time::time_facet<ptime, char> time_facet;
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37 |
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38 | typedef boost::date_time::time_input_facet<ptime, wchar_t> wtime_input_facet;
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39 | typedef boost::date_time::time_input_facet<ptime, char> time_input_facet;
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40 |
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41 | template <class CharT, class TraitsT>
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42 | inline
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43 | std::basic_ostream<CharT, TraitsT>&
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44 | operator<<(std::basic_ostream<CharT, TraitsT>& os,
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45 | const ptime& p) {
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46 | boost::io::ios_flags_saver iflags(os);
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47 | typedef boost::date_time::time_facet<ptime, CharT> custom_ptime_facet;
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48 | typedef std::time_put<CharT> std_ptime_facet;
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49 | std::ostreambuf_iterator<CharT> oitr(os);
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50 | if (std::has_facet<custom_ptime_facet>(os.getloc()))
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51 | std::use_facet<custom_ptime_facet>(os.getloc()).put(oitr, os, os.fill(), p);
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52 | else {
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53 | //instantiate a custom facet for dealing with times since the user
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54 | //has not put one in the stream so far. This is for efficiency
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55 | //since we would always need to reconstruct for every time period
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56 | //if the locale did not already exist. Of course this will be overridden
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57 | //if the user imbues as some later point.
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58 | std::ostreambuf_iterator<CharT> oitr(os);
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59 | custom_ptime_facet* f = new custom_ptime_facet();
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60 | std::locale l = std::locale(os.getloc(), f);
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61 | os.imbue(l);
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62 | f->put(oitr, os, os.fill(), p);
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63 | }
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64 | return os;
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65 | }
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66 |
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67 | //! input operator for ptime
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68 | template <class CharT, class Traits>
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69 | inline
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70 | std::basic_istream<CharT, Traits>&
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71 | operator>>(std::basic_istream<CharT, Traits>& is, ptime& pt)
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72 | {
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73 | boost::io::ios_flags_saver iflags(is);
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74 | typename std::basic_istream<CharT, Traits>::sentry strm_sentry(is, false);
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75 | if (strm_sentry) {
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76 | try {
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77 | typedef typename date_time::time_input_facet<ptime, CharT> time_input_facet;
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78 |
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79 | std::istreambuf_iterator<CharT,Traits> sit(is), str_end;
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80 | if(std::has_facet<time_input_facet>(is.getloc())) {
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81 | std::use_facet<time_input_facet>(is.getloc()).get(sit, str_end, is, pt);
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82 | }
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83 | else {
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84 | time_input_facet* f = new time_input_facet();
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85 | std::locale l = std::locale(is.getloc(), f);
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86 | is.imbue(l);
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87 | f->get(sit, str_end, is, pt);
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88 | }
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89 | }
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90 | catch(...) {
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91 | // mask tells us what exceptions are turned on
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92 | std::ios_base::iostate exception_mask = is.exceptions();
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93 | // if the user wants exceptions on failbit, we'll rethrow our
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94 | // date_time exception & set the failbit
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95 | if(std::ios_base::failbit & exception_mask) {
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96 | try { is.setstate(std::ios_base::failbit); }
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97 | catch(std::ios_base::failure&) {} // ignore this one
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98 | throw; // rethrow original exception
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99 | }
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100 | else {
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101 | // if the user want's to fail quietly, we simply set the failbit
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102 | is.setstate(std::ios_base::failbit);
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103 | }
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104 |
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105 | }
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106 | }
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107 | return is;
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108 | }
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109 |
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110 |
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111 | template <class CharT, class TraitsT>
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112 | inline
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113 | std::basic_ostream<CharT, TraitsT>&
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114 | operator<<(std::basic_ostream<CharT, TraitsT>& os,
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115 | const boost::posix_time::time_period& p) {
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116 | boost::io::ios_flags_saver iflags(os);
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117 | typedef boost::date_time::time_facet<ptime, CharT> custom_ptime_facet;
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118 | typedef std::time_put<CharT> std_time_facet;
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119 | std::ostreambuf_iterator<CharT> oitr(os);
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120 | if (std::has_facet<custom_ptime_facet>(os.getloc())) {
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121 | std::use_facet<custom_ptime_facet>(os.getloc()).put(oitr, os, os.fill(), p);
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122 | }
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123 | else {
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124 | //instantiate a custom facet for dealing with periods since the user
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125 | //has not put one in the stream so far. This is for efficiency
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126 | //since we would always need to reconstruct for every time period
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127 | //if the local did not already exist. Of course this will be overridden
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128 | //if the user imbues as some later point.
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129 | std::ostreambuf_iterator<CharT> oitr(os);
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130 | custom_ptime_facet* f = new custom_ptime_facet();
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131 | std::locale l = std::locale(os.getloc(), f);
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132 | os.imbue(l);
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133 | f->put(oitr, os, os.fill(), p);
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134 | }
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135 | return os;
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136 | }
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137 |
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138 | //! input operator for time_period
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139 | template <class CharT, class Traits>
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140 | inline
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141 | std::basic_istream<CharT, Traits>&
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142 | operator>>(std::basic_istream<CharT, Traits>& is, time_period& tp)
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143 | {
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144 | boost::io::ios_flags_saver iflags(is);
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145 | typename std::basic_istream<CharT, Traits>::sentry strm_sentry(is, false);
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146 | if (strm_sentry) {
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147 | try {
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148 | typedef typename date_time::time_input_facet<ptime, CharT> time_input_facet;
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149 |
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150 | std::istreambuf_iterator<CharT,Traits> sit(is), str_end;
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151 | if(std::has_facet<time_input_facet>(is.getloc())) {
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152 | std::use_facet<time_input_facet>(is.getloc()).get(sit, str_end, is, tp);
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153 | }
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154 | else {
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155 | time_input_facet* f = new time_input_facet();
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156 | std::locale l = std::locale(is.getloc(), f);
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157 | is.imbue(l);
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158 | f->get(sit, str_end, is, tp);
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159 | }
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160 | }
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161 | catch(...) {
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162 | std::ios_base::iostate exception_mask = is.exceptions();
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163 | if(std::ios_base::failbit & exception_mask) {
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164 | try { is.setstate(std::ios_base::failbit); }
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165 | catch(std::ios_base::failure&) {}
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166 | throw; // rethrow original exception
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167 | }
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168 | else {
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169 | is.setstate(std::ios_base::failbit);
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170 | }
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171 |
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172 | }
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173 | }
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174 | return is;
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175 | }
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176 |
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177 |
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178 | //! ostream operator for posix_time::time_duration
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179 | // todo fix to use facet -- place holder for now...
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180 | template <class CharT, class Traits>
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181 | inline
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182 | std::basic_ostream<CharT, Traits>&
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183 | operator<<(std::basic_ostream<CharT, Traits>& os, const time_duration& td)
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184 | {
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185 | boost::io::ios_flags_saver iflags(os);
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186 | typedef boost::date_time::time_facet<ptime, CharT> custom_ptime_facet;
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187 | typedef std::time_put<CharT> std_ptime_facet;
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188 | std::ostreambuf_iterator<CharT> oitr(os);
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189 | if (std::has_facet<custom_ptime_facet>(os.getloc()))
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190 | std::use_facet<custom_ptime_facet>(os.getloc()).put(oitr, os, os.fill(), td);
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191 | else {
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192 | //instantiate a custom facet for dealing with times since the user
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193 | //has not put one in the stream so far. This is for efficiency
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194 | //since we would always need to reconstruct for every time period
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195 | //if the locale did not already exist. Of course this will be overridden
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196 | //if the user imbues as some later point.
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197 | std::ostreambuf_iterator<CharT> oitr(os);
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198 | custom_ptime_facet* f = new custom_ptime_facet();
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199 | std::locale l = std::locale(os.getloc(), f);
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200 | os.imbue(l);
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201 | f->put(oitr, os, os.fill(), td);
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202 | }
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203 | return os;
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204 | }
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205 |
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206 | //! input operator for time_duration
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207 | template <class CharT, class Traits>
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208 | inline
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209 | std::basic_istream<CharT, Traits>&
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210 | operator>>(std::basic_istream<CharT, Traits>& is, time_duration& td)
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211 | {
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212 | boost::io::ios_flags_saver iflags(is);
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213 | typename std::basic_istream<CharT, Traits>::sentry strm_sentry(is, false);
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214 | if (strm_sentry) {
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215 | try {
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216 | typedef typename date_time::time_input_facet<ptime, CharT> time_input_facet;
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217 |
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218 | std::istreambuf_iterator<CharT,Traits> sit(is), str_end;
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219 | if(std::has_facet<time_input_facet>(is.getloc())) {
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220 | std::use_facet<time_input_facet>(is.getloc()).get(sit, str_end, is, td);
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221 | }
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222 | else {
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223 | time_input_facet* f = new time_input_facet();
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224 | std::locale l = std::locale(is.getloc(), f);
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225 | is.imbue(l);
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226 | f->get(sit, str_end, is, td);
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227 | }
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228 | }
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229 | catch(...) {
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230 | std::ios_base::iostate exception_mask = is.exceptions();
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231 | if(std::ios_base::failbit & exception_mask) {
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232 | try { is.setstate(std::ios_base::failbit); }
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233 | catch(std::ios_base::failure&) {}
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234 | throw; // rethrow original exception
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235 | }
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236 | else {
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237 | is.setstate(std::ios_base::failbit);
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238 | }
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239 |
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240 | }
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241 | }
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242 | return is;
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243 | }
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244 |
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245 | } } // namespaces
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246 | #endif // DATE_TIME_POSIX_TIME_IO_HPP__
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