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__ |
237 | |