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1 | #ifndef DATE_TIME_POSIX_TIME_IO_HPP__ |
2 | #define DATE_TIME_POSIX_TIME_IO_HPP__ | |
3 | ||
4 | /* Copyright (c) 2004-2005 CrystalClear Software, Inc. | |
5 | * Use, modification and distribution is subject to the | |
6 | * Boost Software License, Version 1.0. (See accompanying | |
7 | * file LICENSE_1_0.txt or http://www.boost.org/LICENSE_1_0.txt) | |
8 | * Author: Jeff Garland, Bart Garst | |
9 | * $Date$ | |
10 | */ | |
11 | ||
12 | #include <locale> | |
13 | #include <iostream> | |
14 | #include <iterator> // i/ostreambuf_iterator | |
15 | #include <boost/io/ios_state.hpp> | |
16 | #include <boost/date_time/time_facet.hpp> | |
17 | #include <boost/date_time/period_formatter.hpp> | |
18 | #include <boost/date_time/posix_time/ptime.hpp> | |
19 | #include <boost/date_time/posix_time/time_period.hpp> | |
20 | #include <boost/date_time/posix_time/posix_time_duration.hpp> | |
21 | #include <boost/date_time/posix_time/conversion.hpp> // to_tm will be needed in the facets | |
22 | ||
23 | namespace boost { | |
24 | namespace posix_time { | |
25 | ||
26 | ||
27 | //! wptime_facet is depricated and will be phased out. use wtime_facet instead | |
28 | //typedef boost::date_time::time_facet<ptime, wchar_t> wptime_facet; | |
29 | //! ptime_facet is depricated and will be phased out. use time_facet instead | |
30 | //typedef boost::date_time::time_facet<ptime, char> ptime_facet; | |
31 | ||
32 | //! wptime_input_facet is depricated and will be phased out. use wtime_input_facet instead | |
33 | //typedef boost::date_time::time_input_facet<ptime,wchar_t> wptime_input_facet; | |
34 | //! ptime_input_facet is depricated and will be phased out. use time_input_facet instead | |
35 | //typedef boost::date_time::time_input_facet<ptime,char> ptime_input_facet; | |
36 | ||
37 | typedef boost::date_time::time_facet<ptime, wchar_t> wtime_facet; | |
38 | typedef boost::date_time::time_facet<ptime, char> time_facet; | |
39 | ||
40 | typedef boost::date_time::time_input_facet<ptime, wchar_t> wtime_input_facet; | |
41 | typedef boost::date_time::time_input_facet<ptime, char> time_input_facet; | |
42 | ||
43 | template <class CharT, class TraitsT> | |
44 | inline | |
45 | std::basic_ostream<CharT, TraitsT>& | |
46 | operator<<(std::basic_ostream<CharT, TraitsT>& os, | |
47 | const ptime& p) { | |
48 | boost::io::ios_flags_saver iflags(os); | |
49 | typedef boost::date_time::time_facet<ptime, CharT> custom_ptime_facet; | |
50 | std::ostreambuf_iterator<CharT> oitr(os); | |
51 | if (std::has_facet<custom_ptime_facet>(os.getloc())) | |
52 | std::use_facet<custom_ptime_facet>(os.getloc()).put(oitr, os, os.fill(), p); | |
53 | else { | |
54 | //instantiate a custom facet for dealing with times since the user | |
55 | //has not put one in the stream so far. This is for efficiency | |
56 | //since we would always need to reconstruct for every time period | |
57 | //if the locale did not already exist. Of course this will be overridden | |
58 | //if the user imbues as some later point. | |
59 | custom_ptime_facet* f = new custom_ptime_facet(); | |
60 | std::locale l = std::locale(os.getloc(), f); | |
61 | os.imbue(l); | |
62 | f->put(oitr, os, os.fill(), p); | |
63 | } | |
64 | return os; | |
65 | } | |
66 | ||
67 | //! input operator for ptime | |
68 | template <class CharT, class Traits> | |
69 | inline | |
70 | std::basic_istream<CharT, Traits>& | |
71 | operator>>(std::basic_istream<CharT, Traits>& is, ptime& pt) | |
72 | { | |
73 | boost::io::ios_flags_saver iflags(is); | |
74 | typename std::basic_istream<CharT, Traits>::sentry strm_sentry(is, false); | |
75 | if (strm_sentry) { | |
76 | try { | |
77 | typedef typename date_time::time_input_facet<ptime, CharT> time_input_facet; | |
78 | std::istreambuf_iterator<CharT,Traits> sit(is), str_end; | |
79 | if(std::has_facet<time_input_facet>(is.getloc())) { | |
80 | std::use_facet<time_input_facet>(is.getloc()).get(sit, str_end, is, pt); | |
81 | } | |
82 | else { | |
83 | time_input_facet* f = new time_input_facet(); | |
84 | std::locale l = std::locale(is.getloc(), f); | |
85 | is.imbue(l); | |
86 | f->get(sit, str_end, is, pt); | |
87 | } | |
88 | } | |
89 | catch(...) { | |
90 | // mask tells us what exceptions are turned on | |
91 | std::ios_base::iostate exception_mask = is.exceptions(); | |
92 | // if the user wants exceptions on failbit, we'll rethrow our | |
93 | // date_time exception & set the failbit | |
94 | if(std::ios_base::failbit & exception_mask) { | |
95 | try { is.setstate(std::ios_base::failbit); } | |
96 | catch(std::ios_base::failure&) {} // ignore this one | |
97 | throw; // rethrow original exception | |
98 | } | |
99 | else { | |
100 | // if the user want's to fail quietly, we simply set the failbit | |
101 | is.setstate(std::ios_base::failbit); | |
102 | } | |
103 | } | |
104 | } | |
105 | return is; | |
106 | } | |
107 | ||
108 | ||
109 | template <class CharT, class TraitsT> | |
110 | inline | |
111 | std::basic_ostream<CharT, TraitsT>& | |
112 | operator<<(std::basic_ostream<CharT, TraitsT>& os, | |
113 | const boost::posix_time::time_period& p) { | |
114 | boost::io::ios_flags_saver iflags(os); | |
115 | typedef boost::date_time::time_facet<ptime, CharT> custom_ptime_facet; | |
116 | std::ostreambuf_iterator<CharT> oitr(os); | |
117 | if (std::has_facet<custom_ptime_facet>(os.getloc())) { | |
118 | std::use_facet<custom_ptime_facet>(os.getloc()).put(oitr, os, os.fill(), p); | |
119 | } | |
120 | else { | |
121 | //instantiate a custom facet for dealing with periods since the user | |
122 | //has not put one in the stream so far. This is for efficiency | |
123 | //since we would always need to reconstruct for every time period | |
124 | //if the local did not already exist. Of course this will be overridden | |
125 | //if the user imbues as some later point. | |
126 | custom_ptime_facet* f = new custom_ptime_facet(); | |
127 | std::locale l = std::locale(os.getloc(), f); | |
128 | os.imbue(l); | |
129 | f->put(oitr, os, os.fill(), p); | |
130 | } | |
131 | return os; | |
132 | } | |
133 | ||
134 | //! input operator for time_period | |
135 | template <class CharT, class Traits> | |
136 | inline | |
137 | std::basic_istream<CharT, Traits>& | |
138 | operator>>(std::basic_istream<CharT, Traits>& is, time_period& tp) | |
139 | { | |
140 | boost::io::ios_flags_saver iflags(is); | |
141 | typename std::basic_istream<CharT, Traits>::sentry strm_sentry(is, false); | |
142 | if (strm_sentry) { | |
143 | try { | |
144 | typedef typename date_time::time_input_facet<ptime, CharT> time_input_facet; | |
145 | std::istreambuf_iterator<CharT,Traits> sit(is), str_end; | |
146 | if(std::has_facet<time_input_facet>(is.getloc())) { | |
147 | std::use_facet<time_input_facet>(is.getloc()).get(sit, str_end, is, tp); | |
148 | } | |
149 | else { | |
150 | time_input_facet* f = new time_input_facet(); | |
151 | std::locale l = std::locale(is.getloc(), f); | |
152 | is.imbue(l); | |
153 | f->get(sit, str_end, is, tp); | |
154 | } | |
155 | } | |
156 | catch(...) { | |
157 | std::ios_base::iostate exception_mask = is.exceptions(); | |
158 | if(std::ios_base::failbit & exception_mask) { | |
159 | try { is.setstate(std::ios_base::failbit); } | |
160 | catch(std::ios_base::failure&) {} | |
161 | throw; // rethrow original exception | |
162 | } | |
163 | else { | |
164 | is.setstate(std::ios_base::failbit); | |
165 | } | |
166 | } | |
167 | } | |
168 | return is; | |
169 | } | |
170 | ||
171 | ||
172 | //! ostream operator for posix_time::time_duration | |
173 | // todo fix to use facet -- place holder for now... | |
174 | template <class CharT, class Traits> | |
175 | inline | |
176 | std::basic_ostream<CharT, Traits>& | |
177 | operator<<(std::basic_ostream<CharT, Traits>& os, const time_duration& td) | |
178 | { | |
179 | boost::io::ios_flags_saver iflags(os); | |
180 | typedef boost::date_time::time_facet<ptime, CharT> custom_ptime_facet; | |
181 | std::ostreambuf_iterator<CharT> oitr(os); | |
182 | if (std::has_facet<custom_ptime_facet>(os.getloc())) | |
183 | std::use_facet<custom_ptime_facet>(os.getloc()).put(oitr, os, os.fill(), td); | |
184 | else { | |
185 | //instantiate a custom facet for dealing with times since the user | |
186 | //has not put one in the stream so far. This is for efficiency | |
187 | //since we would always need to reconstruct for every time period | |
188 | //if the locale did not already exist. Of course this will be overridden | |
189 | //if the user imbues as some later point. | |
190 | custom_ptime_facet* f = new custom_ptime_facet(); | |
191 | std::locale l = std::locale(os.getloc(), f); | |
192 | os.imbue(l); | |
193 | f->put(oitr, os, os.fill(), td); | |
194 | } | |
195 | return os; | |
196 | } | |
197 | ||
198 | //! input operator for time_duration | |
199 | template <class CharT, class Traits> | |
200 | inline | |
201 | std::basic_istream<CharT, Traits>& | |
202 | operator>>(std::basic_istream<CharT, Traits>& is, time_duration& td) | |
203 | { | |
204 | boost::io::ios_flags_saver iflags(is); | |
205 | typename std::basic_istream<CharT, Traits>::sentry strm_sentry(is, false); | |
206 | if (strm_sentry) { | |
207 | try { | |
208 | typedef typename date_time::time_input_facet<ptime, CharT> time_input_facet; | |
209 | std::istreambuf_iterator<CharT,Traits> sit(is), str_end; | |
210 | if(std::has_facet<time_input_facet>(is.getloc())) { | |
211 | std::use_facet<time_input_facet>(is.getloc()).get(sit, str_end, is, td); | |
212 | } | |
213 | else { | |
214 | time_input_facet* f = new time_input_facet(); | |
215 | std::locale l = std::locale(is.getloc(), f); | |
216 | is.imbue(l); | |
217 | f->get(sit, str_end, is, td); | |
218 | } | |
219 | } | |
220 | catch(...) { | |
221 | std::ios_base::iostate exception_mask = is.exceptions(); | |
222 | if(std::ios_base::failbit & exception_mask) { | |
223 | try { is.setstate(std::ios_base::failbit); } | |
224 | catch(std::ios_base::failure&) {} | |
225 | throw; // rethrow original exception | |
226 | } | |
227 | else { | |
228 | is.setstate(std::ios_base::failbit); | |
229 | } | |
230 | } | |
231 | } | |
232 | return is; | |
233 | } | |
234 | ||
235 | } } // namespaces | |
236 | #endif // DATE_TIME_POSIX_TIME_IO_HPP__ |