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1 | #ifndef GREGORIAN_FACET_HPP___ |
2 | #define GREGORIAN_FACET_HPP___ | |
3 | ||
4 | /* Copyright (c) 2002,2003 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 | ||
b32b8144 FG |
12 | #include <boost/date_time/compiler_config.hpp> |
13 | #include <boost/date_time/gregorian/gregorian_types.hpp> | |
14 | #include <boost/date_time/date_formatting_locales.hpp> // sets BOOST_DATE_TIME_NO_LOCALE | |
15 | #include <boost/date_time/gregorian/parsers.hpp> | |
11fdf7f2 | 16 | #include <boost/io/ios_state.hpp> |
7c673cae FG |
17 | |
18 | //This file is basically commented out if locales are not supported | |
19 | #ifndef BOOST_DATE_TIME_NO_LOCALE | |
20 | ||
21 | #include <string> | |
22 | #include <memory> | |
23 | #include <locale> | |
24 | #include <iostream> | |
25 | #include <exception> | |
26 | ||
27 | namespace boost { | |
28 | namespace gregorian { | |
29 | ||
30 | //! Configuration of the output facet template | |
b32b8144 | 31 | struct BOOST_SYMBOL_VISIBLE greg_facet_config |
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32 | { |
33 | typedef boost::gregorian::greg_month month_type; | |
34 | typedef boost::date_time::special_values special_value_enum; | |
35 | typedef boost::gregorian::months_of_year month_enum; | |
36 | typedef boost::date_time::weekdays weekday_enum; | |
37 | }; | |
38 | ||
39 | #if defined(USE_DATE_TIME_PRE_1_33_FACET_IO) | |
40 | //! Create the base facet type for gregorian::date | |
41 | typedef boost::date_time::date_names_put<greg_facet_config> greg_base_facet; | |
42 | ||
43 | //! ostream operator for gregorian::date | |
44 | /*! Uses the date facet to determine various output parameters including: | |
45 | * - string values for the month (eg: Jan, Feb, Mar) (default: English) | |
46 | * - string values for special values (eg: not-a-date-time) (default: English) | |
47 | * - selection of long, short strings, or numerical month representation (default: short string) | |
48 | * - month day year order (default yyyy-mmm-dd) | |
49 | */ | |
50 | template <class charT, class traits> | |
51 | inline | |
52 | std::basic_ostream<charT, traits>& | |
53 | operator<<(std::basic_ostream<charT, traits>& os, const date& d) | |
54 | { | |
55 | typedef boost::date_time::date_names_put<greg_facet_config, charT> facet_def; | |
56 | typedef boost::date_time::ostream_date_formatter<date, facet_def, charT> greg_ostream_formatter; | |
57 | greg_ostream_formatter::date_put(d, os); | |
58 | return os; | |
59 | } | |
60 | ||
61 | //! operator<< for gregorian::greg_month typically streaming: Jan, Feb, Mar... | |
62 | /*! Uses the date facet to determine output string as well as selection of long or short strings. | |
63 | * Default if no facet is installed is to output a 2 wide numeric value for the month | |
64 | * eg: 01 == Jan, 02 == Feb, ... 12 == Dec. | |
65 | */ | |
66 | template <class charT, class traits> | |
67 | inline | |
68 | std::basic_ostream<charT, traits>& | |
69 | operator<<(std::basic_ostream<charT, traits>& os, const greg_month& m) | |
70 | { | |
71 | typedef boost::date_time::date_names_put<greg_facet_config, charT> facet_def; | |
72 | typedef boost::date_time::ostream_month_formatter<facet_def, charT> greg_month_formatter; | |
73 | std::locale locale = os.getloc(); | |
74 | if (std::has_facet<facet_def>(locale)) { | |
75 | const facet_def& f = std::use_facet<facet_def>(locale); | |
76 | greg_month_formatter::format_month(m, os, f); | |
77 | ||
78 | } | |
11fdf7f2 TL |
79 | else { // default to numeric |
80 | boost::io::basic_ios_fill_saver<charT> ifs(os); | |
81 | os << std::setw(2) << std::setfill(os.widen('0')) << m.as_number(); | |
7c673cae FG |
82 | } |
83 | ||
84 | return os; | |
85 | } | |
86 | ||
87 | //! operator<< for gregorian::greg_weekday typically streaming: Sun, Mon, Tue, ... | |
88 | /*! Uses the date facet to determine output string as well as selection of long or short string. | |
89 | * Default if no facet is installed is to output a 3 char english string for the | |
90 | * day of the week. | |
91 | */ | |
92 | template <class charT, class traits> | |
93 | inline | |
94 | std::basic_ostream<charT, traits>& | |
95 | operator<<(std::basic_ostream<charT, traits>& os, const greg_weekday& wd) | |
96 | { | |
97 | typedef boost::date_time::date_names_put<greg_facet_config, charT> facet_def; | |
98 | typedef boost::date_time::ostream_weekday_formatter<greg_weekday, facet_def, charT> greg_weekday_formatter; | |
99 | std::locale locale = os.getloc(); | |
100 | if (std::has_facet<facet_def>(locale)) { | |
101 | const facet_def& f = std::use_facet<facet_def>(locale); | |
102 | greg_weekday_formatter::format_weekday(wd, os, f, true); | |
103 | } | |
104 | else { //default to short English string eg: Sun, Mon, Tue, Wed... | |
105 | os << wd.as_short_string(); | |
106 | } | |
107 | ||
108 | return os; | |
109 | } | |
110 | ||
111 | //! operator<< for gregorian::date_period typical output: [2002-Jan-01/2002-Jan-31] | |
112 | /*! Uses the date facet to determine output string as well as selection of long | |
113 | * or short string fr dates. | |
114 | * Default if no facet is installed is to output a 3 char english string for the | |
115 | * day of the week. | |
116 | */ | |
117 | template <class charT, class traits> | |
118 | inline | |
119 | std::basic_ostream<charT, traits>& | |
120 | operator<<(std::basic_ostream<charT, traits>& os, const date_period& dp) | |
121 | { | |
122 | os << '['; //TODO: facet or manipulator for periods? | |
123 | os << dp.begin(); | |
124 | os << '/'; //TODO: facet or manipulator for periods? | |
125 | os << dp.last(); | |
126 | os << ']'; | |
127 | return os; | |
128 | } | |
129 | ||
130 | template <class charT, class traits> | |
131 | inline | |
132 | std::basic_ostream<charT, traits>& | |
133 | operator<<(std::basic_ostream<charT, traits>& os, const date_duration& dd) | |
134 | { | |
135 | //os << dd.days(); | |
136 | os << dd.get_rep(); | |
137 | return os; | |
138 | } | |
139 | ||
140 | //! operator<< for gregorian::partial_date. Output: "Jan 1" | |
141 | template <class charT, class traits> | |
142 | inline | |
143 | std::basic_ostream<charT, traits>& | |
144 | operator<<(std::basic_ostream<charT, traits>& os, const partial_date& pd) | |
145 | { | |
11fdf7f2 TL |
146 | boost::io::basic_ios_fill_saver<charT> ifs(os); |
147 | os << std::setw(2) << std::setfill(os.widen('0')) << pd.day() << ' ' | |
7c673cae FG |
148 | << pd.month().as_short_string() ; |
149 | return os; | |
150 | } | |
151 | ||
152 | //! operator<< for gregorian::nth_kday_of_month. Output: "first Mon of Jun" | |
153 | template <class charT, class traits> | |
154 | inline | |
155 | std::basic_ostream<charT, traits>& | |
156 | operator<<(std::basic_ostream<charT, traits>& os, | |
157 | const nth_kday_of_month& nkd) | |
158 | { | |
159 | os << nkd.nth_week_as_str() << ' ' | |
160 | << nkd.day_of_week() << " of " | |
161 | << nkd.month().as_short_string() ; | |
162 | return os; | |
163 | } | |
164 | ||
165 | //! operator<< for gregorian::first_kday_of_month. Output: "first Mon of Jun" | |
166 | template <class charT, class traits> | |
167 | inline | |
168 | std::basic_ostream<charT, traits>& | |
169 | operator<<(std::basic_ostream<charT, traits>& os, | |
170 | const first_kday_of_month& fkd) | |
171 | { | |
172 | os << "first " << fkd.day_of_week() << " of " | |
173 | << fkd.month().as_short_string() ; | |
174 | return os; | |
175 | } | |
176 | ||
177 | //! operator<< for gregorian::last_kday_of_month. Output: "last Mon of Jun" | |
178 | template <class charT, class traits> | |
179 | inline | |
180 | std::basic_ostream<charT, traits>& | |
181 | operator<<(std::basic_ostream<charT, traits>& os, | |
182 | const last_kday_of_month& lkd) | |
183 | { | |
184 | os << "last " << lkd.day_of_week() << " of " | |
185 | << lkd.month().as_short_string() ; | |
186 | return os; | |
187 | } | |
188 | ||
189 | //! operator<< for gregorian::first_kday_after. Output: "first Mon after" | |
190 | template <class charT, class traits> | |
191 | inline | |
192 | std::basic_ostream<charT, traits>& | |
193 | operator<<(std::basic_ostream<charT, traits>& os, | |
194 | const first_kday_after& fka) | |
195 | { | |
196 | os << fka.day_of_week() << " after"; | |
197 | return os; | |
198 | } | |
199 | ||
200 | //! operator<< for gregorian::first_kday_before. Output: "first Mon before" | |
201 | template <class charT, class traits> | |
202 | inline | |
203 | std::basic_ostream<charT, traits>& | |
204 | operator<<(std::basic_ostream<charT, traits>& os, | |
205 | const first_kday_before& fkb) | |
206 | { | |
207 | os << fkb.day_of_week() << " before"; | |
208 | return os; | |
209 | } | |
210 | #endif // USE_DATE_TIME_PRE_1_33_FACET_IO | |
211 | /**************** Input Streaming ******************/ | |
212 | ||
213 | #if !defined(BOOST_NO_STD_ITERATOR_TRAITS) | |
214 | //! operator>> for gregorian::date | |
215 | template<class charT> | |
216 | inline | |
217 | std::basic_istream<charT>& operator>>(std::basic_istream<charT>& is, date& d) | |
218 | { | |
219 | std::istream_iterator<std::basic_string<charT>, charT> beg(is), eos; | |
220 | d = from_stream(beg, eos); | |
221 | return is; | |
222 | } | |
223 | #endif // BOOST_NO_STD_ITERATOR_TRAITS | |
224 | ||
225 | //! operator>> for gregorian::date_duration | |
226 | template<class charT> | |
227 | inline | |
228 | std::basic_istream<charT>& operator>>(std::basic_istream<charT>& is, | |
229 | date_duration& dd) | |
230 | { | |
231 | long v; | |
232 | is >> v; | |
233 | dd = date_duration(v); | |
234 | return is; | |
235 | } | |
236 | ||
237 | //! operator>> for gregorian::date_period | |
238 | template<class charT> | |
239 | inline | |
240 | std::basic_istream<charT>& operator>>(std::basic_istream<charT>& is, | |
241 | date_period& dp) | |
242 | { | |
243 | std::basic_string<charT> s; | |
244 | is >> s; | |
245 | dp = date_time::from_simple_string_type<date>(s); | |
246 | return is; | |
247 | } | |
248 | ||
249 | //! generates a locale with the set of gregorian name-strings of type char* | |
250 | BOOST_DATE_TIME_DECL std::locale generate_locale(std::locale& loc, char type); | |
251 | ||
252 | //! Returns a pointer to a facet with a default set of names (English) | |
253 | /* Necessary in the event an exception is thrown from op>> for | |
254 | * weekday or month. See comments in those functions for more info */ | |
255 | BOOST_DATE_TIME_DECL boost::date_time::all_date_names_put<greg_facet_config, char>* create_facet_def(char type); | |
256 | ||
257 | #ifndef BOOST_NO_STD_WSTRING | |
258 | //! generates a locale with the set of gregorian name-strings of type wchar_t* | |
259 | BOOST_DATE_TIME_DECL std::locale generate_locale(std::locale& loc, wchar_t type); | |
260 | //! Returns a pointer to a facet with a default set of names (English) | |
261 | /* Necessary in the event an exception is thrown from op>> for | |
262 | * weekday or month. See comments in those functions for more info */ | |
263 | BOOST_DATE_TIME_DECL boost::date_time::all_date_names_put<greg_facet_config, wchar_t>* create_facet_def(wchar_t type); | |
264 | #endif // BOOST_NO_STD_WSTRING | |
265 | ||
266 | //! operator>> for gregorian::greg_month - throws exception if invalid month given | |
267 | template<class charT> | |
268 | inline | |
269 | std::basic_istream<charT>& operator>>(std::basic_istream<charT>& is,greg_month& m) | |
270 | { | |
271 | typedef boost::date_time::all_date_names_put<greg_facet_config, charT> facet_def; | |
272 | ||
273 | std::basic_string<charT> s; | |
274 | is >> s; | |
275 | ||
276 | if(!std::has_facet<facet_def>(is.getloc())) { | |
277 | std::locale loc = is.getloc(); | |
278 | charT a = '\0'; | |
279 | is.imbue(generate_locale(loc, a)); | |
280 | } | |
281 | ||
282 | short num = 0; | |
283 | ||
284 | try{ | |
285 | const facet_def& f = std::use_facet<facet_def>(is.getloc()); | |
286 | num = date_time::find_match(f.get_short_month_names(), | |
287 | f.get_long_month_names(), | |
288 | (greg_month::max)(), s); // greg_month spans 1..12, so max returns the array size, | |
289 | // which is needed by find_match | |
290 | } | |
291 | /* bad_cast will be thrown if the desired facet is not accessible | |
292 | * so we can generate the facet. This has the drawback of using english | |
293 | * names as a default. */ | |
294 | catch(std::bad_cast&){ | |
295 | charT a = '\0'; | |
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296 | |
297 | #if defined(BOOST_NO_CXX11_SMART_PTR) | |
298 | ||
7c673cae | 299 | std::auto_ptr< const facet_def > f(create_facet_def(a)); |
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300 | |
301 | #else | |
302 | ||
303 | std::unique_ptr< const facet_def > f(create_facet_def(a)); | |
304 | ||
305 | #endif | |
306 | ||
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307 | num = date_time::find_match(f->get_short_month_names(), |
308 | f->get_long_month_names(), | |
309 | (greg_month::max)(), s); // greg_month spans 1..12, so max returns the array size, | |
310 | // which is needed by find_match | |
311 | } | |
312 | ||
313 | ++num; // months numbered 1-12 | |
314 | m = greg_month(num); | |
315 | ||
316 | return is; | |
317 | } | |
318 | ||
319 | //! operator>> for gregorian::greg_weekday - throws exception if invalid weekday given | |
320 | template<class charT> | |
321 | inline | |
322 | std::basic_istream<charT>& operator>>(std::basic_istream<charT>& is,greg_weekday& wd) | |
323 | { | |
324 | typedef boost::date_time::all_date_names_put<greg_facet_config, charT> facet_def; | |
325 | ||
326 | std::basic_string<charT> s; | |
327 | is >> s; | |
328 | ||
329 | if(!std::has_facet<facet_def>(is.getloc())) { | |
330 | std::locale loc = is.getloc(); | |
331 | charT a = '\0'; | |
332 | is.imbue(generate_locale(loc, a)); | |
333 | } | |
334 | ||
335 | short num = 0; | |
336 | try{ | |
337 | const facet_def& f = std::use_facet<facet_def>(is.getloc()); | |
338 | num = date_time::find_match(f.get_short_weekday_names(), | |
339 | f.get_long_weekday_names(), | |
340 | (greg_weekday::max)() + 1, s); // greg_weekday spans 0..6, so increment is needed | |
341 | // to form the array size which is needed by find_match | |
342 | } | |
343 | /* bad_cast will be thrown if the desired facet is not accessible | |
344 | * so we can generate the facet. This has the drawback of using english | |
345 | * names as a default. */ | |
346 | catch(std::bad_cast&){ | |
347 | charT a = '\0'; | |
b32b8144 FG |
348 | |
349 | #if defined(BOOST_NO_CXX11_SMART_PTR) | |
350 | ||
7c673cae | 351 | std::auto_ptr< const facet_def > f(create_facet_def(a)); |
b32b8144 FG |
352 | |
353 | #else | |
354 | ||
355 | std::unique_ptr< const facet_def > f(create_facet_def(a)); | |
356 | ||
357 | #endif | |
358 | ||
7c673cae FG |
359 | num = date_time::find_match(f->get_short_weekday_names(), |
360 | f->get_long_weekday_names(), | |
361 | (greg_weekday::max)() + 1, s); // greg_weekday spans 0..6, so increment is needed | |
362 | // to form the array size which is needed by find_match | |
363 | } | |
364 | ||
365 | wd = greg_weekday(num); // weekdays numbered 0-6 | |
366 | return is; | |
367 | } | |
368 | ||
369 | } } //namespace gregorian | |
370 | ||
b32b8144 FG |
371 | #endif |
372 | ||
7c673cae FG |
373 | #endif |
374 |