File: | out/../deps/icu-small/source/i18n/calendar.cpp |
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1 | // © 2016 and later: Unicode, Inc. and others. | |||
2 | // License & terms of use: http://www.unicode.org/copyright.html | |||
3 | /* | |||
4 | ******************************************************************************* | |||
5 | * Copyright (C) 1997-2016, International Business Machines Corporation and * | |||
6 | * others. All Rights Reserved. * | |||
7 | ******************************************************************************* | |||
8 | * | |||
9 | * File CALENDAR.CPP | |||
10 | * | |||
11 | * Modification History: | |||
12 | * | |||
13 | * Date Name Description | |||
14 | * 02/03/97 clhuang Creation. | |||
15 | * 04/22/97 aliu Cleaned up, fixed memory leak, made | |||
16 | * setWeekCountData() more robust. | |||
17 | * Moved platform code to TPlatformUtilities. | |||
18 | * 05/01/97 aliu Made equals(), before(), after() arguments const. | |||
19 | * 05/20/97 aliu Changed logic of when to compute fields and time | |||
20 | * to fix bugs. | |||
21 | * 08/12/97 aliu Added equivalentTo. Misc other fixes. | |||
22 | * 07/28/98 stephen Sync up with JDK 1.2 | |||
23 | * 09/02/98 stephen Sync with JDK 1.2 8/31 build (getActualMin/Max) | |||
24 | * 03/17/99 stephen Changed adoptTimeZone() - now fAreFieldsSet is | |||
25 | * set to FALSE to force update of time. | |||
26 | ******************************************************************************* | |||
27 | */ | |||
28 | ||||
29 | #include "utypeinfo.h" // for 'typeid' to work | |||
30 | ||||
31 | #include "unicode/utypes.h" | |||
32 | ||||
33 | #if !UCONFIG_NO_FORMATTING0 | |||
34 | ||||
35 | #include "unicode/gregocal.h" | |||
36 | #include "unicode/basictz.h" | |||
37 | #include "unicode/simpletz.h" | |||
38 | #include "unicode/rbtz.h" | |||
39 | #include "unicode/vtzone.h" | |||
40 | #include "gregoimp.h" | |||
41 | #include "buddhcal.h" | |||
42 | #include "taiwncal.h" | |||
43 | #include "japancal.h" | |||
44 | #include "islamcal.h" | |||
45 | #include "hebrwcal.h" | |||
46 | #include "persncal.h" | |||
47 | #include "indiancal.h" | |||
48 | #include "chnsecal.h" | |||
49 | #include "coptccal.h" | |||
50 | #include "dangical.h" | |||
51 | #include "ethpccal.h" | |||
52 | #include "unicode/calendar.h" | |||
53 | #include "cpputils.h" | |||
54 | #include "servloc.h" | |||
55 | #include "ucln_in.h" | |||
56 | #include "cstring.h" | |||
57 | #include "locbased.h" | |||
58 | #include "uresimp.h" | |||
59 | #include "ustrenum.h" | |||
60 | #include "uassert.h" | |||
61 | #include "olsontz.h" | |||
62 | #include "sharedcalendar.h" | |||
63 | #include "unifiedcache.h" | |||
64 | #include "ulocimp.h" | |||
65 | ||||
66 | #if !UCONFIG_NO_SERVICE1 | |||
67 | static icu::ICULocaleService* gService = NULL__null; | |||
68 | static icu::UInitOnce gServiceInitOnce = U_INITONCE_INITIALIZER{{ 0 }, U_ZERO_ERROR}; | |||
69 | ||||
70 | // INTERNAL - for cleanup | |||
71 | U_CDECL_BEGINextern "C" { | |||
72 | static UBool calendar_cleanup(void) { | |||
73 | #if !UCONFIG_NO_SERVICE1 | |||
74 | if (gService) { | |||
75 | delete gService; | |||
76 | gService = NULL__null; | |||
77 | } | |||
78 | gServiceInitOnce.reset(); | |||
79 | #endif | |||
80 | return TRUE1; | |||
81 | } | |||
82 | U_CDECL_END} | |||
83 | #endif | |||
84 | ||||
85 | // ------------------------------------------ | |||
86 | // | |||
87 | // Registration | |||
88 | // | |||
89 | //------------------------------------------- | |||
90 | //#define U_DEBUG_CALSVC 1 | |||
91 | // | |||
92 | ||||
93 | #if defined( U_DEBUG_CALSVC ) || defined (U_DEBUG_CAL) | |||
94 | ||||
95 | /** | |||
96 | * fldName was removed as a duplicate implementation. | |||
97 | * use udbg_ services instead, | |||
98 | * which depend on include files and library from ../tools/toolutil, the following circular link: | |||
99 | * CPPFLAGS+=-I$(top_srcdir)/tools/toolutil | |||
100 | * LIBS+=$(LIBICUTOOLUTIL) | |||
101 | */ | |||
102 | #include "udbgutil.h" | |||
103 | #include <stdio.h> | |||
104 | ||||
105 | /** | |||
106 | * convert a UCalendarDateFields into a string - for debugging | |||
107 | * @param f field enum | |||
108 | * @return static string to the field name | |||
109 | * @internal | |||
110 | */ | |||
111 | ||||
112 | const char* fldName(UCalendarDateFields f) { | |||
113 | return udbg_enumName(UDBG_UCalendarDateFields, (int32_t)f); | |||
114 | } | |||
115 | ||||
116 | #if UCAL_DEBUG_DUMP | |||
117 | // from CalendarTest::calToStr - but doesn't modify contents. | |||
118 | void ucal_dump(const Calendar &cal) { | |||
119 | cal.dump(); | |||
120 | } | |||
121 | ||||
122 | void Calendar::dump() const { | |||
123 | int i; | |||
124 | fprintf(stderrstderr, "@calendar=%s, timeset=%c, fieldset=%c, allfields=%c, virtualset=%c, t=%.2f", | |||
125 | getType(), fIsTimeSet?'y':'n', fAreFieldsSet?'y':'n', fAreAllFieldsSet?'y':'n', | |||
126 | fAreFieldsVirtuallySet?'y':'n', | |||
127 | fTime); | |||
128 | ||||
129 | // can add more things here: DST, zone, etc. | |||
130 | fprintf(stderrstderr, "\n"); | |||
131 | for(i = 0;i<UCAL_FIELD_COUNT;i++) { | |||
132 | int n; | |||
133 | const char *f = fldName((UCalendarDateFields)i); | |||
134 | fprintf(stderrstderr, " %25s: %-11ld", f, fFields[i]); | |||
135 | if(fStamp[i] == kUnset) { | |||
136 | fprintf(stderrstderr, " (unset) "); | |||
137 | } else if(fStamp[i] == kInternallySet) { | |||
138 | fprintf(stderrstderr, " (internally set) "); | |||
139 | //} else if(fStamp[i] == kInternalDefault) { | |||
140 | // fprintf(stderr, " (internal default) "); | |||
141 | } else { | |||
142 | fprintf(stderrstderr, " %%%d ", fStamp[i]); | |||
143 | } | |||
144 | fprintf(stderrstderr, "\n"); | |||
145 | ||||
146 | } | |||
147 | } | |||
148 | ||||
149 | U_CFUNCextern "C" void ucal_dump(UCalendar* cal) { | |||
150 | ucal_dump( *((Calendar*)cal) ); | |||
151 | } | |||
152 | #endif | |||
153 | ||||
154 | #endif | |||
155 | ||||
156 | /* Max value for stamp allowable before recalculation */ | |||
157 | #define STAMP_MAX10000 10000 | |||
158 | ||||
159 | static const char * const gCalTypes[] = { | |||
160 | "gregorian", | |||
161 | "japanese", | |||
162 | "buddhist", | |||
163 | "roc", | |||
164 | "persian", | |||
165 | "islamic-civil", | |||
166 | "islamic", | |||
167 | "hebrew", | |||
168 | "chinese", | |||
169 | "indian", | |||
170 | "coptic", | |||
171 | "ethiopic", | |||
172 | "ethiopic-amete-alem", | |||
173 | "iso8601", | |||
174 | "dangi", | |||
175 | "islamic-umalqura", | |||
176 | "islamic-tbla", | |||
177 | "islamic-rgsa", | |||
178 | NULL__null | |||
179 | }; | |||
180 | ||||
181 | // Must be in the order of gCalTypes above | |||
182 | typedef enum ECalType { | |||
183 | CALTYPE_UNKNOWN = -1, | |||
184 | CALTYPE_GREGORIAN = 0, | |||
185 | CALTYPE_JAPANESE, | |||
186 | CALTYPE_BUDDHIST, | |||
187 | CALTYPE_ROC, | |||
188 | CALTYPE_PERSIAN, | |||
189 | CALTYPE_ISLAMIC_CIVIL, | |||
190 | CALTYPE_ISLAMIC, | |||
191 | CALTYPE_HEBREW, | |||
192 | CALTYPE_CHINESE, | |||
193 | CALTYPE_INDIAN, | |||
194 | CALTYPE_COPTIC, | |||
195 | CALTYPE_ETHIOPIC, | |||
196 | CALTYPE_ETHIOPIC_AMETE_ALEM, | |||
197 | CALTYPE_ISO8601, | |||
198 | CALTYPE_DANGI, | |||
199 | CALTYPE_ISLAMIC_UMALQURA, | |||
200 | CALTYPE_ISLAMIC_TBLA, | |||
201 | CALTYPE_ISLAMIC_RGSA | |||
202 | } ECalType; | |||
203 | ||||
204 | U_NAMESPACE_BEGINnamespace icu_71 { | |||
205 | ||||
206 | SharedCalendar::~SharedCalendar() { | |||
207 | delete ptr; | |||
208 | } | |||
209 | ||||
210 | template<> U_I18N_API | |||
211 | const SharedCalendar *LocaleCacheKey<SharedCalendar>::createObject( | |||
212 | const void * /*unusedCreationContext*/, UErrorCode &status) const { | |||
213 | Calendar *calendar = Calendar::makeInstance(fLoc, status); | |||
214 | if (U_FAILURE(status)) { | |||
215 | return NULL__null; | |||
216 | } | |||
217 | SharedCalendar *shared = new SharedCalendar(calendar); | |||
218 | if (shared == NULL__null) { | |||
219 | delete calendar; | |||
220 | status = U_MEMORY_ALLOCATION_ERROR; | |||
221 | return NULL__null; | |||
222 | } | |||
223 | shared->addRef(); | |||
224 | return shared; | |||
225 | } | |||
226 | ||||
227 | static ECalType getCalendarType(const char *s) { | |||
228 | for (int i = 0; gCalTypes[i] != NULL__null; i++) { | |||
229 | if (uprv_stricmpuprv_stricmp_71(s, gCalTypes[i]) == 0) { | |||
230 | return (ECalType)i; | |||
231 | } | |||
232 | } | |||
233 | return CALTYPE_UNKNOWN; | |||
234 | } | |||
235 | ||||
236 | #if !UCONFIG_NO_SERVICE1 | |||
237 | // Only used with service registration. | |||
238 | static UBool isStandardSupportedKeyword(const char *keyword, UErrorCode& status) { | |||
239 | if(U_FAILURE(status)) { | |||
240 | return FALSE0; | |||
241 | } | |||
242 | ECalType calType = getCalendarType(keyword); | |||
243 | return (calType != CALTYPE_UNKNOWN); | |||
244 | } | |||
245 | ||||
246 | // only used with service registration. | |||
247 | static void getCalendarKeyword(const UnicodeString &id, char *targetBuffer, int32_t targetBufferSize) { | |||
248 | UnicodeString calendarKeyword = UNICODE_STRING_SIMPLE("calendar=")icu::UnicodeString(true, u"calendar=", -1); | |||
249 | int32_t calKeyLen = calendarKeyword.length(); | |||
250 | int32_t keyLen = 0; | |||
251 | ||||
252 | int32_t keywordIdx = id.indexOf((UChar)0x003D); /* '=' */ | |||
253 | if (id[0] == 0x40/*'@'*/ | |||
254 | && id.compareBetween(1, keywordIdx+1, calendarKeyword, 0, calKeyLen) == 0) | |||
255 | { | |||
256 | keyLen = id.extract(keywordIdx+1, id.length(), targetBuffer, targetBufferSize, US_INVicu::UnicodeString::kInvariant); | |||
257 | } | |||
258 | targetBuffer[keyLen] = 0; | |||
259 | } | |||
260 | #endif | |||
261 | ||||
262 | static ECalType getCalendarTypeForLocale(const char *locid) { | |||
263 | UErrorCode status = U_ZERO_ERROR; | |||
264 | ECalType calType = CALTYPE_UNKNOWN; | |||
265 | ||||
266 | //TODO: ULOC_FULL_NAME is out of date and too small.. | |||
267 | char canonicalName[256]; | |||
268 | ||||
269 | // Canonicalize, so that an old-style variant will be transformed to keywords. | |||
270 | // e.g ja_JP_TRADITIONAL -> ja_JP@calendar=japanese | |||
271 | // NOTE: Since ICU-20187, ja_JP_TRADITIONAL no longer canonicalizes, and | |||
272 | // the Gregorian calendar is returned instead. | |||
273 | int32_t canonicalLen = uloc_canonicalizeuloc_canonicalize_71(locid, canonicalName, sizeof(canonicalName) - 1, &status); | |||
274 | if (U_FAILURE(status)) { | |||
275 | return CALTYPE_GREGORIAN; | |||
276 | } | |||
277 | canonicalName[canonicalLen] = 0; // terminate | |||
278 | ||||
279 | char calTypeBuf[32]; | |||
280 | int32_t calTypeBufLen; | |||
281 | ||||
282 | calTypeBufLen = uloc_getKeywordValueuloc_getKeywordValue_71(canonicalName, "calendar", calTypeBuf, sizeof(calTypeBuf) - 1, &status); | |||
283 | if (U_SUCCESS(status)) { | |||
284 | calTypeBuf[calTypeBufLen] = 0; | |||
285 | calType = getCalendarType(calTypeBuf); | |||
286 | if (calType != CALTYPE_UNKNOWN) { | |||
287 | return calType; | |||
288 | } | |||
289 | } | |||
290 | status = U_ZERO_ERROR; | |||
291 | ||||
292 | // when calendar keyword is not available or not supported, read supplementalData | |||
293 | // to get the default calendar type for the locale's region | |||
294 | char region[ULOC_COUNTRY_CAPACITY4]; | |||
295 | (void)ulocimp_getRegionForSupplementalDataulocimp_getRegionForSupplementalData_71(canonicalName, TRUE1, region, sizeof(region), &status); | |||
296 | if (U_FAILURE(status)) { | |||
297 | return CALTYPE_GREGORIAN; | |||
298 | } | |||
299 | ||||
300 | // Read preferred calendar values from supplementalData calendarPreference | |||
301 | UResourceBundle *rb = ures_openDirectures_openDirect_71(NULL__null, "supplementalData", &status); | |||
302 | ures_getByKeyures_getByKey_71(rb, "calendarPreferenceData", rb, &status); | |||
303 | UResourceBundle *order = ures_getByKeyures_getByKey_71(rb, region, NULL__null, &status); | |||
304 | if (status == U_MISSING_RESOURCE_ERROR && rb != NULL__null) { | |||
305 | status = U_ZERO_ERROR; | |||
306 | order = ures_getByKeyures_getByKey_71(rb, "001", NULL__null, &status); | |||
307 | } | |||
308 | ||||
309 | calTypeBuf[0] = 0; | |||
310 | if (U_SUCCESS(status) && order != NULL__null) { | |||
311 | // the first calendar type is the default for the region | |||
312 | int32_t len = 0; | |||
313 | const UChar *uCalType = ures_getStringByIndexures_getStringByIndex_71(order, 0, &len, &status); | |||
314 | if (len < (int32_t)sizeof(calTypeBuf)) { | |||
315 | u_UCharsToCharsu_UCharsToChars_71(uCalType, calTypeBuf, len); | |||
316 | *(calTypeBuf + len) = 0; // terminate; | |||
317 | calType = getCalendarType(calTypeBuf); | |||
318 | } | |||
319 | } | |||
320 | ||||
321 | ures_closeures_close_71(order); | |||
322 | ures_closeures_close_71(rb); | |||
323 | ||||
324 | if (calType == CALTYPE_UNKNOWN) { | |||
325 | // final fallback | |||
326 | calType = CALTYPE_GREGORIAN; | |||
327 | } | |||
328 | return calType; | |||
329 | } | |||
330 | ||||
331 | static Calendar *createStandardCalendar(ECalType calType, const Locale &loc, UErrorCode& status) { | |||
332 | if (U_FAILURE(status)) { | |||
333 | return nullptr; | |||
334 | } | |||
335 | LocalPointer<Calendar> cal; | |||
336 | ||||
337 | switch (calType) { | |||
338 | case CALTYPE_GREGORIAN: | |||
339 | cal.adoptInsteadAndCheckErrorCode(new GregorianCalendar(loc, status), status); | |||
340 | break; | |||
341 | case CALTYPE_JAPANESE: | |||
342 | cal.adoptInsteadAndCheckErrorCode(new JapaneseCalendar(loc, status), status); | |||
343 | break; | |||
344 | case CALTYPE_BUDDHIST: | |||
345 | cal.adoptInsteadAndCheckErrorCode(new BuddhistCalendar(loc, status), status); | |||
346 | break; | |||
347 | case CALTYPE_ROC: | |||
348 | cal.adoptInsteadAndCheckErrorCode(new TaiwanCalendar(loc, status), status); | |||
349 | break; | |||
350 | case CALTYPE_PERSIAN: | |||
351 | cal.adoptInsteadAndCheckErrorCode(new PersianCalendar(loc, status), status); | |||
352 | break; | |||
353 | case CALTYPE_ISLAMIC_TBLA: | |||
354 | cal.adoptInsteadAndCheckErrorCode(new IslamicCalendar(loc, status, IslamicCalendar::TBLA), status); | |||
355 | break; | |||
356 | case CALTYPE_ISLAMIC_CIVIL: | |||
357 | cal.adoptInsteadAndCheckErrorCode(new IslamicCalendar(loc, status, IslamicCalendar::CIVIL), status); | |||
358 | break; | |||
359 | case CALTYPE_ISLAMIC_RGSA: | |||
360 | // default any region specific not handled individually to islamic | |||
361 | case CALTYPE_ISLAMIC: | |||
362 | cal.adoptInsteadAndCheckErrorCode(new IslamicCalendar(loc, status, IslamicCalendar::ASTRONOMICAL), status); | |||
363 | break; | |||
364 | case CALTYPE_ISLAMIC_UMALQURA: | |||
365 | cal.adoptInsteadAndCheckErrorCode(new IslamicCalendar(loc, status, IslamicCalendar::UMALQURA), status); | |||
366 | break; | |||
367 | case CALTYPE_HEBREW: | |||
368 | cal.adoptInsteadAndCheckErrorCode(new HebrewCalendar(loc, status), status); | |||
369 | break; | |||
370 | case CALTYPE_CHINESE: | |||
371 | cal.adoptInsteadAndCheckErrorCode(new ChineseCalendar(loc, status), status); | |||
372 | break; | |||
373 | case CALTYPE_INDIAN: | |||
374 | cal.adoptInsteadAndCheckErrorCode(new IndianCalendar(loc, status), status); | |||
375 | break; | |||
376 | case CALTYPE_COPTIC: | |||
377 | cal.adoptInsteadAndCheckErrorCode(new CopticCalendar(loc, status), status); | |||
378 | break; | |||
379 | case CALTYPE_ETHIOPIC: | |||
380 | cal.adoptInsteadAndCheckErrorCode(new EthiopicCalendar(loc, status, EthiopicCalendar::AMETE_MIHRET_ERA), status); | |||
381 | break; | |||
382 | case CALTYPE_ETHIOPIC_AMETE_ALEM: | |||
383 | cal.adoptInsteadAndCheckErrorCode(new EthiopicCalendar(loc, status, EthiopicCalendar::AMETE_ALEM_ERA), status); | |||
384 | break; | |||
385 | case CALTYPE_ISO8601: | |||
386 | cal.adoptInsteadAndCheckErrorCode(new GregorianCalendar(loc, status), status); | |||
387 | if (cal.isValid()) { | |||
388 | cal->setFirstDayOfWeek(UCAL_MONDAY); | |||
389 | cal->setMinimalDaysInFirstWeek(4); | |||
390 | } | |||
391 | break; | |||
392 | case CALTYPE_DANGI: | |||
393 | cal.adoptInsteadAndCheckErrorCode(new DangiCalendar(loc, status), status); | |||
394 | break; | |||
395 | default: | |||
396 | status = U_UNSUPPORTED_ERROR; | |||
397 | } | |||
398 | return cal.orphan(); | |||
399 | } | |||
400 | ||||
401 | ||||
402 | #if !UCONFIG_NO_SERVICE1 | |||
403 | ||||
404 | // ------------------------------------- | |||
405 | ||||
406 | /** | |||
407 | * a Calendar Factory which creates the "basic" calendar types, that is, those | |||
408 | * shipped with ICU. | |||
409 | */ | |||
410 | class BasicCalendarFactory : public LocaleKeyFactory { | |||
411 | public: | |||
412 | /** | |||
413 | * @param calendarType static const string (caller owns storage - will be aliased) to calendar type | |||
414 | */ | |||
415 | BasicCalendarFactory() | |||
416 | : LocaleKeyFactory(LocaleKeyFactory::INVISIBLE) { } | |||
417 | ||||
418 | virtual ~BasicCalendarFactory(); | |||
419 | ||||
420 | protected: | |||
421 | //virtual UBool isSupportedID( const UnicodeString& id, UErrorCode& status) const { | |||
422 | // if(U_FAILURE(status)) { | |||
423 | // return FALSE; | |||
424 | // } | |||
425 | // char keyword[ULOC_FULLNAME_CAPACITY]; | |||
426 | // getCalendarKeyword(id, keyword, (int32_t)sizeof(keyword)); | |||
427 | // return isStandardSupportedKeyword(keyword, status); | |||
428 | //} | |||
429 | ||||
430 | virtual void updateVisibleIDs(Hashtable& result, UErrorCode& status) const override | |||
431 | { | |||
432 | if (U_SUCCESS(status)) { | |||
433 | for(int32_t i=0;gCalTypes[i] != NULL__null;i++) { | |||
434 | UnicodeString id((UChar)0x40); /* '@' a variant character */ | |||
435 | id.append(UNICODE_STRING_SIMPLE("calendar=")icu::UnicodeString(true, u"calendar=", -1)); | |||
436 | id.append(UnicodeString(gCalTypes[i], -1, US_INVicu::UnicodeString::kInvariant)); | |||
437 | result.put(id, (void*)this, status); | |||
438 | } | |||
439 | } | |||
440 | } | |||
441 | ||||
442 | virtual UObject* create(const ICUServiceKey& key, const ICUService* /*service*/, UErrorCode& status) const override { | |||
443 | #ifdef U_DEBUG_CALSVC | |||
444 | if(dynamic_cast<const LocaleKey*>(&key) == NULL__null) { | |||
445 | fprintf(stderrstderr, "::create - not a LocaleKey!\n"); | |||
446 | } | |||
447 | #endif | |||
448 | const LocaleKey& lkey = (LocaleKey&)key; | |||
449 | Locale curLoc; // current locale | |||
450 | Locale canLoc; // Canonical locale | |||
451 | ||||
452 | lkey.currentLocale(curLoc); | |||
453 | lkey.canonicalLocale(canLoc); | |||
454 | ||||
455 | char keyword[ULOC_FULLNAME_CAPACITY157]; | |||
456 | UnicodeString str; | |||
457 | ||||
458 | key.currentID(str); | |||
459 | getCalendarKeyword(str, keyword, (int32_t) sizeof(keyword)); | |||
460 | ||||
461 | #ifdef U_DEBUG_CALSVC | |||
462 | fprintf(stderrstderr, "BasicCalendarFactory::create() - cur %s, can %s\n", (const char*)curLoc.getName(), (const char*)canLoc.getName()); | |||
463 | #endif | |||
464 | ||||
465 | if(!isStandardSupportedKeyword(keyword,status)) { // Do we handle this type? | |||
466 | #ifdef U_DEBUG_CALSVC | |||
467 | ||||
468 | fprintf(stderrstderr, "BasicCalendarFactory - not handling %s.[%s]\n", (const char*) curLoc.getName(), tmp ); | |||
469 | #endif | |||
470 | return NULL__null; | |||
471 | } | |||
472 | ||||
473 | return createStandardCalendar(getCalendarType(keyword), canLoc, status); | |||
474 | } | |||
475 | }; | |||
476 | ||||
477 | BasicCalendarFactory::~BasicCalendarFactory() {} | |||
478 | ||||
479 | /** | |||
480 | * A factory which looks up the DefaultCalendar resource to determine which class of calendar to use | |||
481 | */ | |||
482 | ||||
483 | class DefaultCalendarFactory : public ICUResourceBundleFactory { | |||
484 | public: | |||
485 | DefaultCalendarFactory() : ICUResourceBundleFactory() { } | |||
486 | virtual ~DefaultCalendarFactory(); | |||
487 | protected: | |||
488 | virtual UObject* create(const ICUServiceKey& key, const ICUService* /*service*/, UErrorCode& status) const override { | |||
489 | ||||
490 | LocaleKey &lkey = (LocaleKey&)key; | |||
491 | Locale loc; | |||
492 | lkey.currentLocale(loc); | |||
493 | ||||
494 | UnicodeString *ret = new UnicodeString(); | |||
495 | if (ret == NULL__null) { | |||
496 | status = U_MEMORY_ALLOCATION_ERROR; | |||
497 | } else { | |||
498 | ret->append((UChar)0x40); // '@' is a variant character | |||
499 | ret->append(UNICODE_STRING("calendar=", 9)icu::UnicodeString(true, u"calendar=", 9)); | |||
500 | ret->append(UnicodeString(gCalTypes[getCalendarTypeForLocale(loc.getName())], -1, US_INVicu::UnicodeString::kInvariant)); | |||
501 | } | |||
502 | return ret; | |||
503 | } | |||
504 | }; | |||
505 | ||||
506 | DefaultCalendarFactory::~DefaultCalendarFactory() {} | |||
507 | ||||
508 | // ------------------------------------- | |||
509 | class CalendarService : public ICULocaleService { | |||
510 | public: | |||
511 | CalendarService() | |||
512 | : ICULocaleService(UNICODE_STRING_SIMPLE("Calendar")icu::UnicodeString(true, u"Calendar", -1)) | |||
513 | { | |||
514 | UErrorCode status = U_ZERO_ERROR; | |||
515 | registerFactory(new DefaultCalendarFactory(), status); | |||
516 | } | |||
517 | ||||
518 | virtual ~CalendarService(); | |||
519 | ||||
520 | virtual UObject* cloneInstance(UObject* instance) const override { | |||
521 | UnicodeString *s = dynamic_cast<UnicodeString *>(instance); | |||
522 | if(s != NULL__null) { | |||
523 | return s->clone(); | |||
524 | } else { | |||
525 | #ifdef U_DEBUG_CALSVC_F | |||
526 | UErrorCode status2 = U_ZERO_ERROR; | |||
527 | fprintf(stderrstderr, "Cloning a %s calendar with tz=%ld\n", ((Calendar*)instance)->getType(), ((Calendar*)instance)->get(UCAL_ZONE_OFFSET, status2)); | |||
528 | #endif | |||
529 | return ((Calendar*)instance)->clone(); | |||
530 | } | |||
531 | } | |||
532 | ||||
533 | virtual UObject* handleDefault(const ICUServiceKey& key, UnicodeString* /*actualID*/, UErrorCode& status) const override { | |||
534 | LocaleKey& lkey = (LocaleKey&)key; | |||
535 | //int32_t kind = lkey.kind(); | |||
536 | ||||
537 | Locale loc; | |||
538 | lkey.canonicalLocale(loc); | |||
539 | ||||
540 | #ifdef U_DEBUG_CALSVC | |||
541 | Locale loc2; | |||
542 | lkey.currentLocale(loc2); | |||
543 | fprintf(stderrstderr, "CalSvc:handleDefault for currentLoc %s, canloc %s\n", (const char*)loc.getName(), (const char*)loc2.getName()); | |||
544 | #endif | |||
545 | Calendar *nc = new GregorianCalendar(loc, status); | |||
546 | if (nc == nullptr) { | |||
547 | status = U_MEMORY_ALLOCATION_ERROR; | |||
548 | return nc; | |||
549 | } | |||
550 | ||||
551 | #ifdef U_DEBUG_CALSVC | |||
552 | UErrorCode status2 = U_ZERO_ERROR; | |||
553 | fprintf(stderrstderr, "New default calendar has tz=%d\n", ((Calendar*)nc)->get(UCAL_ZONE_OFFSET, status2)); | |||
554 | #endif | |||
555 | return nc; | |||
556 | } | |||
557 | ||||
558 | virtual UBool isDefault() const override { | |||
559 | return countFactories() == 1; | |||
560 | } | |||
561 | }; | |||
562 | ||||
563 | CalendarService::~CalendarService() {} | |||
564 | ||||
565 | // ------------------------------------- | |||
566 | ||||
567 | static inline UBool | |||
568 | isCalendarServiceUsed() { | |||
569 | return !gServiceInitOnce.isReset(); | |||
570 | } | |||
571 | ||||
572 | // ------------------------------------- | |||
573 | ||||
574 | static void U_CALLCONV | |||
575 | initCalendarService(UErrorCode &status) | |||
576 | { | |||
577 | #ifdef U_DEBUG_CALSVC | |||
578 | fprintf(stderrstderr, "Spinning up Calendar Service\n"); | |||
579 | #endif | |||
580 | ucln_i18n_registerCleanupucln_i18n_registerCleanup_71(UCLN_I18N_CALENDAR, calendar_cleanup); | |||
581 | gService = new CalendarService(); | |||
582 | if (gService == NULL__null) { | |||
583 | status = U_MEMORY_ALLOCATION_ERROR; | |||
584 | return; | |||
585 | } | |||
586 | #ifdef U_DEBUG_CALSVC | |||
587 | fprintf(stderrstderr, "Registering classes..\n"); | |||
588 | #endif | |||
589 | ||||
590 | // Register all basic instances. | |||
591 | gService->registerFactory(new BasicCalendarFactory(),status); | |||
592 | ||||
593 | #ifdef U_DEBUG_CALSVC | |||
594 | fprintf(stderrstderr, "Done..\n"); | |||
595 | #endif | |||
596 | ||||
597 | if(U_FAILURE(status)) { | |||
598 | #ifdef U_DEBUG_CALSVC | |||
599 | fprintf(stderrstderr, "err (%s) registering classes, deleting service.....\n", u_errorNameu_errorName_71(status)); | |||
600 | #endif | |||
601 | delete gService; | |||
602 | gService = NULL__null; | |||
603 | } | |||
604 | } | |||
605 | ||||
606 | static ICULocaleService* | |||
607 | getCalendarService(UErrorCode &status) | |||
608 | { | |||
609 | umtx_initOnce(gServiceInitOnce, &initCalendarService, status); | |||
610 | return gService; | |||
611 | } | |||
612 | ||||
613 | URegistryKey Calendar::registerFactory(ICUServiceFactory* toAdopt, UErrorCode& status) | |||
614 | { | |||
615 | return getCalendarService(status)->registerFactory(toAdopt, status); | |||
616 | } | |||
617 | ||||
618 | UBool Calendar::unregister(URegistryKey key, UErrorCode& status) { | |||
619 | return getCalendarService(status)->unregister(key, status); | |||
620 | } | |||
621 | #endif /* UCONFIG_NO_SERVICE */ | |||
622 | ||||
623 | // ------------------------------------- | |||
624 | ||||
625 | static const int32_t kCalendarLimits[UCAL_FIELD_COUNT][4] = { | |||
626 | // Minimum Greatest min Least max Greatest max | |||
627 | {/*N/A*/-1, /*N/A*/-1, /*N/A*/-1, /*N/A*/-1}, // ERA | |||
628 | {/*N/A*/-1, /*N/A*/-1, /*N/A*/-1, /*N/A*/-1}, // YEAR | |||
629 | {/*N/A*/-1, /*N/A*/-1, /*N/A*/-1, /*N/A*/-1}, // MONTH | |||
630 | {/*N/A*/-1, /*N/A*/-1, /*N/A*/-1, /*N/A*/-1}, // WEEK_OF_YEAR | |||
631 | {/*N/A*/-1, /*N/A*/-1, /*N/A*/-1, /*N/A*/-1}, // WEEK_OF_MONTH | |||
632 | {/*N/A*/-1, /*N/A*/-1, /*N/A*/-1, /*N/A*/-1}, // DAY_OF_MONTH | |||
633 | {/*N/A*/-1, /*N/A*/-1, /*N/A*/-1, /*N/A*/-1}, // DAY_OF_YEAR | |||
634 | { 1, 1, 7, 7 }, // DAY_OF_WEEK | |||
635 | {/*N/A*/-1, /*N/A*/-1, /*N/A*/-1, /*N/A*/-1}, // DAY_OF_WEEK_IN_MONTH | |||
636 | { 0, 0, 1, 1 }, // AM_PM | |||
637 | { 0, 0, 11, 11 }, // HOUR | |||
638 | { 0, 0, 23, 23 }, // HOUR_OF_DAY | |||
639 | { 0, 0, 59, 59 }, // MINUTE | |||
640 | { 0, 0, 59, 59 }, // SECOND | |||
641 | { 0, 0, 999, 999 }, // MILLISECOND | |||
642 | {-12*kOneHour(60*60*1000), -12*kOneHour(60*60*1000), 12*kOneHour(60*60*1000), 15*kOneHour(60*60*1000) }, // ZONE_OFFSET | |||
643 | { 0, 0, 1*kOneHour(60*60*1000), 1*kOneHour(60*60*1000) }, // DST_OFFSET | |||
644 | {/*N/A*/-1, /*N/A*/-1, /*N/A*/-1, /*N/A*/-1}, // YEAR_WOY | |||
645 | { 1, 1, 7, 7 }, // DOW_LOCAL | |||
646 | {/*N/A*/-1, /*N/A*/-1, /*N/A*/-1, /*N/A*/-1}, // EXTENDED_YEAR | |||
647 | { -0x7F000000, -0x7F000000, 0x7F000000, 0x7F000000 }, // JULIAN_DAY | |||
648 | { 0, 0, 24*kOneHour(60*60*1000)-1, 24*kOneHour(60*60*1000)-1 }, // MILLISECONDS_IN_DAY | |||
649 | { 0, 0, 1, 1 }, // IS_LEAP_MONTH | |||
650 | }; | |||
651 | ||||
652 | // Resource bundle tags read by this class | |||
653 | static const char gCalendar[] = "calendar"; | |||
654 | static const char gMonthNames[] = "monthNames"; | |||
655 | static const char gGregorian[] = "gregorian"; | |||
656 | ||||
657 | // Data flow in Calendar | |||
658 | // --------------------- | |||
659 | ||||
660 | // The current time is represented in two ways by Calendar: as UTC | |||
661 | // milliseconds from the epoch start (1 January 1970 0:00 UTC), and as local | |||
662 | // fields such as MONTH, HOUR, AM_PM, etc. It is possible to compute the | |||
663 | // millis from the fields, and vice versa. The data needed to do this | |||
664 | // conversion is encapsulated by a TimeZone object owned by the Calendar. | |||
665 | // The data provided by the TimeZone object may also be overridden if the | |||
666 | // user sets the ZONE_OFFSET and/or DST_OFFSET fields directly. The class | |||
667 | // keeps track of what information was most recently set by the caller, and | |||
668 | // uses that to compute any other information as needed. | |||
669 | ||||
670 | // If the user sets the fields using set(), the data flow is as follows. | |||
671 | // This is implemented by the Calendar subclass's computeTime() method. | |||
672 | // During this process, certain fields may be ignored. The disambiguation | |||
673 | // algorithm for resolving which fields to pay attention to is described | |||
674 | // above. | |||
675 | ||||
676 | // local fields (YEAR, MONTH, DATE, HOUR, MINUTE, etc.) | |||
677 | // | | |||
678 | // | Using Calendar-specific algorithm | |||
679 | // V | |||
680 | // local standard millis | |||
681 | // | | |||
682 | // | Using TimeZone or user-set ZONE_OFFSET / DST_OFFSET | |||
683 | // V | |||
684 | // UTC millis (in time data member) | |||
685 | ||||
686 | // If the user sets the UTC millis using setTime(), the data flow is as | |||
687 | // follows. This is implemented by the Calendar subclass's computeFields() | |||
688 | // method. | |||
689 | ||||
690 | // UTC millis (in time data member) | |||
691 | // | | |||
692 | // | Using TimeZone getOffset() | |||
693 | // V | |||
694 | // local standard millis | |||
695 | // | | |||
696 | // | Using Calendar-specific algorithm | |||
697 | // V | |||
698 | // local fields (YEAR, MONTH, DATE, HOUR, MINUTE, etc.) | |||
699 | ||||
700 | // In general, a round trip from fields, through local and UTC millis, and | |||
701 | // back out to fields is made when necessary. This is implemented by the | |||
702 | // complete() method. Resolving a partial set of fields into a UTC millis | |||
703 | // value allows all remaining fields to be generated from that value. If | |||
704 | // the Calendar is lenient, the fields are also renormalized to standard | |||
705 | // ranges when they are regenerated. | |||
706 | ||||
707 | // ------------------------------------- | |||
708 | ||||
709 | Calendar::Calendar(UErrorCode& success) | |||
710 | : UObject(), | |||
711 | fIsTimeSet(FALSE0), | |||
712 | fAreFieldsSet(FALSE0), | |||
713 | fAreAllFieldsSet(FALSE0), | |||
714 | fAreFieldsVirtuallySet(FALSE0), | |||
715 | fNextStamp((int32_t)kMinimumUserStamp), | |||
716 | fTime(0), | |||
717 | fLenient(TRUE1), | |||
718 | fZone(NULL__null), | |||
719 | fRepeatedWallTime(UCAL_WALLTIME_LAST), | |||
720 | fSkippedWallTime(UCAL_WALLTIME_LAST) | |||
721 | { | |||
722 | validLocale[0] = 0; | |||
723 | actualLocale[0] = 0; | |||
724 | clear(); | |||
725 | if (U_FAILURE(success)) { | |||
726 | return; | |||
727 | } | |||
728 | fZone = TimeZone::createDefault(); | |||
729 | if (fZone == NULL__null) { | |||
730 | success = U_MEMORY_ALLOCATION_ERROR; | |||
731 | } | |||
732 | setWeekData(Locale::getDefault(), NULL__null, success); | |||
733 | } | |||
734 | ||||
735 | // ------------------------------------- | |||
736 | ||||
737 | Calendar::Calendar(TimeZone* zone, const Locale& aLocale, UErrorCode& success) | |||
738 | : UObject(), | |||
739 | fIsTimeSet(FALSE0), | |||
740 | fAreFieldsSet(FALSE0), | |||
741 | fAreAllFieldsSet(FALSE0), | |||
742 | fAreFieldsVirtuallySet(FALSE0), | |||
743 | fNextStamp((int32_t)kMinimumUserStamp), | |||
744 | fTime(0), | |||
745 | fLenient(TRUE1), | |||
746 | fZone(NULL__null), | |||
747 | fRepeatedWallTime(UCAL_WALLTIME_LAST), | |||
748 | fSkippedWallTime(UCAL_WALLTIME_LAST) | |||
749 | { | |||
750 | validLocale[0] = 0; | |||
751 | actualLocale[0] = 0; | |||
752 | if (U_FAILURE(success)) { | |||
753 | delete zone; | |||
754 | return; | |||
755 | } | |||
756 | if(zone == 0) { | |||
757 | #if defined (U_DEBUG_CAL) | |||
758 | fprintf(stderrstderr, "%s:%d: ILLEGAL ARG because timezone cannot be 0\n", | |||
759 | __FILE__"../deps/icu-small/source/i18n/calendar.cpp", __LINE__759); | |||
760 | #endif | |||
761 | success = U_ILLEGAL_ARGUMENT_ERROR; | |||
762 | return; | |||
763 | } | |||
764 | ||||
765 | clear(); | |||
766 | fZone = zone; | |||
767 | setWeekData(aLocale, NULL__null, success); | |||
768 | } | |||
769 | ||||
770 | // ------------------------------------- | |||
771 | ||||
772 | Calendar::Calendar(const TimeZone& zone, const Locale& aLocale, UErrorCode& success) | |||
773 | : UObject(), | |||
774 | fIsTimeSet(FALSE0), | |||
775 | fAreFieldsSet(FALSE0), | |||
776 | fAreAllFieldsSet(FALSE0), | |||
777 | fAreFieldsVirtuallySet(FALSE0), | |||
778 | fNextStamp((int32_t)kMinimumUserStamp), | |||
779 | fTime(0), | |||
780 | fLenient(TRUE1), | |||
781 | fZone(NULL__null), | |||
782 | fRepeatedWallTime(UCAL_WALLTIME_LAST), | |||
783 | fSkippedWallTime(UCAL_WALLTIME_LAST) | |||
784 | { | |||
785 | validLocale[0] = 0; | |||
786 | actualLocale[0] = 0; | |||
787 | if (U_FAILURE(success)) { | |||
788 | return; | |||
789 | } | |||
790 | clear(); | |||
791 | fZone = zone.clone(); | |||
792 | if (fZone == NULL__null) { | |||
793 | success = U_MEMORY_ALLOCATION_ERROR; | |||
794 | } | |||
795 | setWeekData(aLocale, NULL__null, success); | |||
796 | } | |||
797 | ||||
798 | // ------------------------------------- | |||
799 | ||||
800 | Calendar::~Calendar() | |||
801 | { | |||
802 | delete fZone; | |||
803 | } | |||
804 | ||||
805 | // ------------------------------------- | |||
806 | ||||
807 | Calendar::Calendar(const Calendar &source) | |||
808 | : UObject(source) | |||
809 | { | |||
810 | fZone = NULL__null; | |||
811 | *this = source; | |||
812 | } | |||
813 | ||||
814 | // ------------------------------------- | |||
815 | ||||
816 | Calendar & | |||
817 | Calendar::operator=(const Calendar &right) | |||
818 | { | |||
819 | if (this != &right) { | |||
820 | uprv_arrayCopy(right.fFields, fFields, UCAL_FIELD_COUNT); | |||
821 | uprv_arrayCopy(right.fIsSet, fIsSet, UCAL_FIELD_COUNT); | |||
822 | uprv_arrayCopy(right.fStamp, fStamp, UCAL_FIELD_COUNT); | |||
823 | fTime = right.fTime; | |||
824 | fIsTimeSet = right.fIsTimeSet; | |||
825 | fAreAllFieldsSet = right.fAreAllFieldsSet; | |||
826 | fAreFieldsSet = right.fAreFieldsSet; | |||
827 | fAreFieldsVirtuallySet = right.fAreFieldsVirtuallySet; | |||
828 | fLenient = right.fLenient; | |||
829 | fRepeatedWallTime = right.fRepeatedWallTime; | |||
830 | fSkippedWallTime = right.fSkippedWallTime; | |||
831 | delete fZone; | |||
832 | fZone = NULL__null; | |||
833 | if (right.fZone != NULL__null) { | |||
834 | fZone = right.fZone->clone(); | |||
835 | } | |||
836 | fFirstDayOfWeek = right.fFirstDayOfWeek; | |||
837 | fMinimalDaysInFirstWeek = right.fMinimalDaysInFirstWeek; | |||
838 | fWeekendOnset = right.fWeekendOnset; | |||
839 | fWeekendOnsetMillis = right.fWeekendOnsetMillis; | |||
840 | fWeekendCease = right.fWeekendCease; | |||
841 | fWeekendCeaseMillis = right.fWeekendCeaseMillis; | |||
842 | fNextStamp = right.fNextStamp; | |||
843 | uprv_strncpy(validLocale, right.validLocale, sizeof(validLocale)):: strncpy(validLocale, right.validLocale, sizeof(validLocale )); | |||
844 | uprv_strncpy(actualLocale, right.actualLocale, sizeof(actualLocale)):: strncpy(actualLocale, right.actualLocale, sizeof(actualLocale )); | |||
845 | validLocale[sizeof(validLocale)-1] = 0; | |||
846 | actualLocale[sizeof(validLocale)-1] = 0; | |||
847 | } | |||
848 | ||||
849 | return *this; | |||
850 | } | |||
851 | ||||
852 | // ------------------------------------- | |||
853 | ||||
854 | Calendar* U_EXPORT2 | |||
855 | Calendar::createInstance(UErrorCode& success) | |||
856 | { | |||
857 | return createInstance(TimeZone::createDefault(), Locale::getDefault(), success); | |||
858 | } | |||
859 | ||||
860 | // ------------------------------------- | |||
861 | ||||
862 | Calendar* U_EXPORT2 | |||
863 | Calendar::createInstance(const TimeZone& zone, UErrorCode& success) | |||
864 | { | |||
865 | return createInstance(zone, Locale::getDefault(), success); | |||
866 | } | |||
867 | ||||
868 | // ------------------------------------- | |||
869 | ||||
870 | Calendar* U_EXPORT2 | |||
871 | Calendar::createInstance(const Locale& aLocale, UErrorCode& success) | |||
872 | { | |||
873 | return createInstance(TimeZone::forLocaleOrDefault(aLocale), aLocale, success); | |||
874 | } | |||
875 | ||||
876 | // ------------------------------------- Adopting | |||
877 | ||||
878 | // Note: this is the bottleneck that actually calls the service routines. | |||
879 | ||||
880 | Calendar * U_EXPORT2 | |||
881 | Calendar::makeInstance(const Locale& aLocale, UErrorCode& success) { | |||
882 | if (U_FAILURE(success)) { | |||
883 | return NULL__null; | |||
884 | } | |||
885 | ||||
886 | Locale actualLoc; | |||
887 | UObject* u = NULL__null; | |||
888 | ||||
889 | #if !UCONFIG_NO_SERVICE1 | |||
890 | if (isCalendarServiceUsed()) { | |||
891 | u = getCalendarService(success)->get(aLocale, LocaleKey::KIND_ANY, &actualLoc, success); | |||
892 | } | |||
893 | else | |||
894 | #endif | |||
895 | { | |||
896 | u = createStandardCalendar(getCalendarTypeForLocale(aLocale.getName()), aLocale, success); | |||
897 | } | |||
898 | Calendar* c = NULL__null; | |||
899 | ||||
900 | if(U_FAILURE(success) || !u) { | |||
901 | if(U_SUCCESS(success)) { // Propagate some kind of err | |||
902 | success = U_INTERNAL_PROGRAM_ERROR; | |||
903 | } | |||
904 | return NULL__null; | |||
905 | } | |||
906 | ||||
907 | #if !UCONFIG_NO_SERVICE1 | |||
908 | const UnicodeString* str = dynamic_cast<const UnicodeString*>(u); | |||
909 | if(str != NULL__null) { | |||
910 | // It's a unicode string telling us what type of calendar to load ("gregorian", etc) | |||
911 | // Create a Locale over this string | |||
912 | Locale l(""); | |||
913 | LocaleUtility::initLocaleFromName(*str, l); | |||
914 | ||||
915 | #ifdef U_DEBUG_CALSVC | |||
916 | fprintf(stderrstderr, "Calendar::createInstance(%s), looking up [%s]\n", aLocale.getName(), l.getName()); | |||
917 | #endif | |||
918 | ||||
919 | Locale actualLoc2; | |||
920 | delete u; | |||
921 | u = NULL__null; | |||
922 | ||||
923 | // Don't overwrite actualLoc, since the actual loc from this call | |||
924 | // may be something like "@calendar=gregorian" -- TODO investigate | |||
925 | // further... | |||
926 | c = (Calendar*)getCalendarService(success)->get(l, LocaleKey::KIND_ANY, &actualLoc2, success); | |||
927 | ||||
928 | if(U_FAILURE(success) || !c) { | |||
929 | if(U_SUCCESS(success)) { | |||
930 | success = U_INTERNAL_PROGRAM_ERROR; // Propagate some err | |||
931 | } | |||
932 | return NULL__null; | |||
933 | } | |||
934 | ||||
935 | str = dynamic_cast<const UnicodeString*>(c); | |||
936 | if(str != NULL__null) { | |||
937 | // recursed! Second lookup returned a UnicodeString. | |||
938 | // Perhaps DefaultCalendar{} was set to another locale. | |||
939 | #ifdef U_DEBUG_CALSVC | |||
940 | char tmp[200]; | |||
941 | // Extract a char* out of it.. | |||
942 | int32_t len = str->length(); | |||
943 | int32_t actLen = sizeof(tmp)-1; | |||
944 | if(len > actLen) { | |||
945 | len = actLen; | |||
946 | } | |||
947 | str->extract(0,len,tmp); | |||
948 | tmp[len]=0; | |||
949 | ||||
950 | fprintf(stderrstderr, "err - recursed, 2nd lookup was unistring %s\n", tmp); | |||
951 | #endif | |||
952 | success = U_MISSING_RESOURCE_ERROR; // requested a calendar type which could NOT be found. | |||
953 | delete c; | |||
954 | return NULL__null; | |||
955 | } | |||
956 | #ifdef U_DEBUG_CALSVC | |||
957 | fprintf(stderrstderr, "%p: setting week count data to locale %s, actual locale %s\n", c, (const char*)aLocale.getName(), (const char *)actualLoc.getName()); | |||
958 | #endif | |||
959 | c->setWeekData(aLocale, c->getType(), success); // set the correct locale (this was an indirect calendar) | |||
960 | ||||
961 | char keyword[ULOC_FULLNAME_CAPACITY157] = ""; | |||
962 | UErrorCode tmpStatus = U_ZERO_ERROR; | |||
963 | l.getKeywordValue("calendar", keyword, ULOC_FULLNAME_CAPACITY157, tmpStatus); | |||
964 | if (U_SUCCESS(tmpStatus) && uprv_strcmp(keyword, "iso8601"):: strcmp(keyword, "iso8601") == 0) { | |||
965 | c->setFirstDayOfWeek(UCAL_MONDAY); | |||
966 | c->setMinimalDaysInFirstWeek(4); | |||
967 | } | |||
968 | } | |||
969 | else | |||
970 | #endif /* UCONFIG_NO_SERVICE */ | |||
971 | { | |||
972 | // a calendar was returned - we assume the factory did the right thing. | |||
973 | c = (Calendar*)u; | |||
974 | } | |||
975 | ||||
976 | return c; | |||
977 | } | |||
978 | ||||
979 | Calendar* U_EXPORT2 | |||
980 | Calendar::createInstance(TimeZone* zone, const Locale& aLocale, UErrorCode& success) | |||
981 | { | |||
982 | LocalPointer<TimeZone> zonePtr(zone); | |||
983 | const SharedCalendar *shared = NULL__null; | |||
984 | UnifiedCache::getByLocale(aLocale, shared, success); | |||
985 | if (U_FAILURE(success)) { | |||
986 | return NULL__null; | |||
987 | } | |||
988 | Calendar *c = (*shared)->clone(); | |||
989 | shared->removeRef(); | |||
990 | if (c == NULL__null) { | |||
991 | success = U_MEMORY_ALLOCATION_ERROR; | |||
992 | return NULL__null; | |||
993 | } | |||
994 | ||||
995 | // Now, reset calendar to default state: | |||
996 | c->adoptTimeZone(zonePtr.orphan()); // Set the correct time zone | |||
997 | c->setTimeInMillis(getNow(), success); // let the new calendar have the current time. | |||
998 | ||||
999 | return c; | |||
1000 | } | |||
1001 | ||||
1002 | // ------------------------------------- | |||
1003 | ||||
1004 | Calendar* U_EXPORT2 | |||
1005 | Calendar::createInstance(const TimeZone& zone, const Locale& aLocale, UErrorCode& success) | |||
1006 | { | |||
1007 | Calendar* c = createInstance(aLocale, success); | |||
1008 | if(U_SUCCESS(success) && c) { | |||
1009 | c->setTimeZone(zone); | |||
1010 | } | |||
1011 | return c; | |||
1012 | } | |||
1013 | ||||
1014 | // ------------------------------------- | |||
1015 | ||||
1016 | void U_EXPORT2 | |||
1017 | Calendar::getCalendarTypeFromLocale( | |||
1018 | const Locale &aLocale, | |||
1019 | char *typeBuffer, | |||
1020 | int32_t typeBufferSize, | |||
1021 | UErrorCode &success) { | |||
1022 | const SharedCalendar *shared = NULL__null; | |||
1023 | UnifiedCache::getByLocale(aLocale, shared, success); | |||
1024 | if (U_FAILURE(success)) { | |||
1025 | return; | |||
1026 | } | |||
1027 | uprv_strncpy(typeBuffer, (*shared)->getType(), typeBufferSize):: strncpy(typeBuffer, (*shared)->getType(), typeBufferSize ); | |||
1028 | shared->removeRef(); | |||
1029 | if (typeBuffer[typeBufferSize - 1]) { | |||
1030 | success = U_BUFFER_OVERFLOW_ERROR; | |||
1031 | } | |||
1032 | } | |||
1033 | ||||
1034 | bool | |||
1035 | Calendar::operator==(const Calendar& that) const | |||
1036 | { | |||
1037 | UErrorCode status = U_ZERO_ERROR; | |||
1038 | return isEquivalentTo(that) && | |||
1039 | getTimeInMillis(status) == that.getTimeInMillis(status) && | |||
1040 | U_SUCCESS(status); | |||
1041 | } | |||
1042 | ||||
1043 | UBool | |||
1044 | Calendar::isEquivalentTo(const Calendar& other) const | |||
1045 | { | |||
1046 | return typeid(*this) == typeid(other) && | |||
1047 | fLenient == other.fLenient && | |||
1048 | fRepeatedWallTime == other.fRepeatedWallTime && | |||
1049 | fSkippedWallTime == other.fSkippedWallTime && | |||
1050 | fFirstDayOfWeek == other.fFirstDayOfWeek && | |||
1051 | fMinimalDaysInFirstWeek == other.fMinimalDaysInFirstWeek && | |||
1052 | fWeekendOnset == other.fWeekendOnset && | |||
1053 | fWeekendOnsetMillis == other.fWeekendOnsetMillis && | |||
1054 | fWeekendCease == other.fWeekendCease && | |||
1055 | fWeekendCeaseMillis == other.fWeekendCeaseMillis && | |||
1056 | *fZone == *other.fZone; | |||
1057 | } | |||
1058 | ||||
1059 | // ------------------------------------- | |||
1060 | ||||
1061 | UBool | |||
1062 | Calendar::equals(const Calendar& when, UErrorCode& status) const | |||
1063 | { | |||
1064 | return (this == &when || | |||
1065 | getTime(status) == when.getTime(status)); | |||
1066 | } | |||
1067 | ||||
1068 | // ------------------------------------- | |||
1069 | ||||
1070 | UBool | |||
1071 | Calendar::before(const Calendar& when, UErrorCode& status) const | |||
1072 | { | |||
1073 | return (this != &when && | |||
1074 | getTimeInMillis(status) < when.getTimeInMillis(status)); | |||
1075 | } | |||
1076 | ||||
1077 | // ------------------------------------- | |||
1078 | ||||
1079 | UBool | |||
1080 | Calendar::after(const Calendar& when, UErrorCode& status) const | |||
1081 | { | |||
1082 | return (this != &when && | |||
1083 | getTimeInMillis(status) > when.getTimeInMillis(status)); | |||
1084 | } | |||
1085 | ||||
1086 | // ------------------------------------- | |||
1087 | ||||
1088 | ||||
1089 | const Locale* U_EXPORT2 | |||
1090 | Calendar::getAvailableLocales(int32_t& count) | |||
1091 | { | |||
1092 | return Locale::getAvailableLocales(count); | |||
1093 | } | |||
1094 | ||||
1095 | // ------------------------------------- | |||
1096 | ||||
1097 | StringEnumeration* U_EXPORT2 | |||
1098 | Calendar::getKeywordValuesForLocale(const char* key, | |||
1099 | const Locale& locale, UBool commonlyUsed, UErrorCode& status) | |||
1100 | { | |||
1101 | // This is a wrapper over ucal_getKeywordValuesForLocale | |||
1102 | UEnumeration *uenum = ucal_getKeywordValuesForLocaleucal_getKeywordValuesForLocale_71(key, locale.getName(), | |||
1103 | commonlyUsed, &status); | |||
1104 | if (U_FAILURE(status)) { | |||
1105 | uenum_closeuenum_close_71(uenum); | |||
1106 | return NULL__null; | |||
1107 | } | |||
1108 | UStringEnumeration* ustringenum = new UStringEnumeration(uenum); | |||
1109 | if (ustringenum == nullptr) { | |||
1110 | status = U_MEMORY_ALLOCATION_ERROR; | |||
1111 | } | |||
1112 | return ustringenum; | |||
1113 | } | |||
1114 | ||||
1115 | // ------------------------------------- | |||
1116 | ||||
1117 | UDate U_EXPORT2 | |||
1118 | Calendar::getNow() | |||
1119 | { | |||
1120 | return uprv_getUTCtimeuprv_getUTCtime_71(); // return as milliseconds | |||
1121 | } | |||
1122 | ||||
1123 | // ------------------------------------- | |||
1124 | ||||
1125 | /** | |||
1126 | * Gets this Calendar's current time as a long. | |||
1127 | * @return the current time as UTC milliseconds from the epoch. | |||
1128 | */ | |||
1129 | double | |||
1130 | Calendar::getTimeInMillis(UErrorCode& status) const | |||
1131 | { | |||
1132 | if(U_FAILURE(status)) | |||
1133 | return 0.0; | |||
1134 | ||||
1135 | if ( ! fIsTimeSet) | |||
1136 | ((Calendar*)this)->updateTime(status); | |||
1137 | ||||
1138 | /* Test for buffer overflows */ | |||
1139 | if(U_FAILURE(status)) { | |||
1140 | return 0.0; | |||
1141 | } | |||
1142 | return fTime; | |||
1143 | } | |||
1144 | ||||
1145 | // ------------------------------------- | |||
1146 | ||||
1147 | /** | |||
1148 | * Sets this Calendar's current time from the given long value. | |||
1149 | * A status of U_ILLEGAL_ARGUMENT_ERROR is set when millis is | |||
1150 | * outside the range permitted by a Calendar object when not in lenient mode. | |||
1151 | * when in lenient mode the out of range values are pinned to their respective min/max. | |||
1152 | * @param date the new time in UTC milliseconds from the epoch. | |||
1153 | */ | |||
1154 | void | |||
1155 | Calendar::setTimeInMillis( double millis, UErrorCode& status ) { | |||
1156 | if(U_FAILURE(status)) | |||
1157 | return; | |||
1158 | ||||
1159 | if (millis > MAX_MILLIS(((+0x7F000000) - 2440588) * (1.0 * (86400000)))) { | |||
1160 | if(isLenient()) { | |||
1161 | millis = MAX_MILLIS(((+0x7F000000) - 2440588) * (1.0 * (86400000))); | |||
1162 | } else { | |||
1163 | status = U_ILLEGAL_ARGUMENT_ERROR; | |||
1164 | return; | |||
1165 | } | |||
1166 | } else if (millis < MIN_MILLIS(((-0x7F000000) - 2440588) * (1.0 * (86400000)))) { | |||
1167 | if(isLenient()) { | |||
1168 | millis = MIN_MILLIS(((-0x7F000000) - 2440588) * (1.0 * (86400000))); | |||
1169 | } else { | |||
1170 | status = U_ILLEGAL_ARGUMENT_ERROR; | |||
1171 | return; | |||
1172 | } | |||
1173 | } | |||
1174 | ||||
1175 | fTime = millis; | |||
1176 | fAreFieldsSet = fAreAllFieldsSet = FALSE0; | |||
1177 | fIsTimeSet = fAreFieldsVirtuallySet = TRUE1; | |||
1178 | ||||
1179 | for (int32_t i=0; i<UCAL_FIELD_COUNT; ++i) { | |||
1180 | fFields[i] = 0; | |||
1181 | fStamp[i] = kUnset; | |||
1182 | fIsSet[i] = FALSE0; | |||
1183 | } | |||
1184 | ||||
1185 | ||||
1186 | } | |||
1187 | ||||
1188 | // ------------------------------------- | |||
1189 | ||||
1190 | int32_t | |||
1191 | Calendar::get(UCalendarDateFields field, UErrorCode& status) const | |||
1192 | { | |||
1193 | // field values are only computed when actually requested; for more on when computation | |||
1194 | // of various things happens, see the "data flow in Calendar" description at the top | |||
1195 | // of this file | |||
1196 | if (U_SUCCESS(status)) ((Calendar*)this)->complete(status); // Cast away const | |||
1197 | return U_SUCCESS(status) ? fFields[field] : 0; | |||
1198 | } | |||
1199 | ||||
1200 | // ------------------------------------- | |||
1201 | ||||
1202 | void | |||
1203 | Calendar::set(UCalendarDateFields field, int32_t value) | |||
1204 | { | |||
1205 | if (fAreFieldsVirtuallySet) { | |||
1206 | UErrorCode ec = U_ZERO_ERROR; | |||
1207 | computeFields(ec); | |||
1208 | } | |||
1209 | fFields[field] = value; | |||
1210 | /* Ensure that the fNextStamp value doesn't go pass max value for int32_t */ | |||
1211 | if (fNextStamp == STAMP_MAX10000) { | |||
1212 | recalculateStamp(); | |||
1213 | } | |||
1214 | fStamp[field] = fNextStamp++; | |||
1215 | fIsSet[field] = TRUE1; // Remove later | |||
1216 | fIsTimeSet = fAreFieldsSet = fAreFieldsVirtuallySet = FALSE0; | |||
1217 | } | |||
1218 | ||||
1219 | // ------------------------------------- | |||
1220 | ||||
1221 | void | |||
1222 | Calendar::set(int32_t year, int32_t month, int32_t date) | |||
1223 | { | |||
1224 | set(UCAL_YEAR, year); | |||
1225 | set(UCAL_MONTH, month); | |||
1226 | set(UCAL_DATE, date); | |||
1227 | } | |||
1228 | ||||
1229 | // ------------------------------------- | |||
1230 | ||||
1231 | void | |||
1232 | Calendar::set(int32_t year, int32_t month, int32_t date, int32_t hour, int32_t minute) | |||
1233 | { | |||
1234 | set(UCAL_YEAR, year); | |||
1235 | set(UCAL_MONTH, month); | |||
1236 | set(UCAL_DATE, date); | |||
1237 | set(UCAL_HOUR_OF_DAY, hour); | |||
1238 | set(UCAL_MINUTE, minute); | |||
1239 | } | |||
1240 | ||||
1241 | // ------------------------------------- | |||
1242 | ||||
1243 | void | |||
1244 | Calendar::set(int32_t year, int32_t month, int32_t date, int32_t hour, int32_t minute, int32_t second) | |||
1245 | { | |||
1246 | set(UCAL_YEAR, year); | |||
1247 | set(UCAL_MONTH, month); | |||
1248 | set(UCAL_DATE, date); | |||
1249 | set(UCAL_HOUR_OF_DAY, hour); | |||
1250 | set(UCAL_MINUTE, minute); | |||
1251 | set(UCAL_SECOND, second); | |||
1252 | } | |||
1253 | ||||
1254 | // ------------------------------------- | |||
1255 | // For now the full getRelatedYear implementation is here; | |||
1256 | // per #10752 move the non-default implementation to subclasses | |||
1257 | // (default implementation will do no year adjustment) | |||
1258 | ||||
1259 | static int32_t gregoYearFromIslamicStart(int32_t year) { | |||
1260 | // ad hoc conversion, improve under #10752 | |||
1261 | // rough est for now, ok for grego 1846-2138, | |||
1262 | // otherwise occasionally wrong (for 3% of years) | |||
1263 | int cycle, offset, shift = 0; | |||
1264 | if (year >= 1397) { | |||
1265 | cycle = (year - 1397) / 67; | |||
1266 | offset = (year - 1397) % 67; | |||
1267 | shift = 2*cycle + ((offset >= 33)? 1: 0); | |||
1268 | } else { | |||
1269 | cycle = (year - 1396) / 67 - 1; | |||
1270 | offset = -(year - 1396) % 67; | |||
1271 | shift = 2*cycle + ((offset <= 33)? 1: 0); | |||
1272 | } | |||
1273 | return year + 579 - shift; | |||
1274 | } | |||
1275 | ||||
1276 | int32_t Calendar::getRelatedYear(UErrorCode &status) const | |||
1277 | { | |||
1278 | if (U_FAILURE(status)) { | |||
1279 | return 0; | |||
1280 | } | |||
1281 | int32_t year = get(UCAL_EXTENDED_YEAR, status); | |||
1282 | if (U_FAILURE(status)) { | |||
1283 | return 0; | |||
1284 | } | |||
1285 | // modify for calendar type | |||
1286 | ECalType type = getCalendarType(getType()); | |||
1287 | switch (type) { | |||
1288 | case CALTYPE_PERSIAN: | |||
1289 | year += 622; break; | |||
1290 | case CALTYPE_HEBREW: | |||
1291 | year -= 3760; break; | |||
1292 | case CALTYPE_CHINESE: | |||
1293 | year -= 2637; break; | |||
1294 | case CALTYPE_INDIAN: | |||
1295 | year += 79; break; | |||
1296 | case CALTYPE_COPTIC: | |||
1297 | year += 284; break; | |||
1298 | case CALTYPE_ETHIOPIC: | |||
1299 | year += 8; break; | |||
1300 | case CALTYPE_ETHIOPIC_AMETE_ALEM: | |||
1301 | year -=5492; break; | |||
1302 | case CALTYPE_DANGI: | |||
1303 | year -= 2333; break; | |||
1304 | case CALTYPE_ISLAMIC_CIVIL: | |||
1305 | case CALTYPE_ISLAMIC: | |||
1306 | case CALTYPE_ISLAMIC_UMALQURA: | |||
1307 | case CALTYPE_ISLAMIC_TBLA: | |||
1308 | case CALTYPE_ISLAMIC_RGSA: | |||
1309 | year = gregoYearFromIslamicStart(year); break; | |||
1310 | default: | |||
1311 | // CALTYPE_GREGORIAN | |||
1312 | // CALTYPE_JAPANESE | |||
1313 | // CALTYPE_BUDDHIST | |||
1314 | // CALTYPE_ROC | |||
1315 | // CALTYPE_ISO8601 | |||
1316 | // do nothing, EXTENDED_YEAR same as Gregorian | |||
1317 | break; | |||
1318 | } | |||
1319 | return year; | |||
1320 | } | |||
1321 | ||||
1322 | // ------------------------------------- | |||
1323 | // For now the full setRelatedYear implementation is here; | |||
1324 | // per #10752 move the non-default implementation to subclasses | |||
1325 | // (default implementation will do no year adjustment) | |||
1326 | ||||
1327 | static int32_t firstIslamicStartYearFromGrego(int32_t year) { | |||
1328 | // ad hoc conversion, improve under #10752 | |||
1329 | // rough est for now, ok for grego 1846-2138, | |||
1330 | // otherwise occasionally wrong (for 3% of years) | |||
1331 | int cycle, offset, shift = 0; | |||
1332 | if (year >= 1977) { | |||
1333 | cycle = (year - 1977) / 65; | |||
1334 | offset = (year - 1977) % 65; | |||
1335 | shift = 2*cycle + ((offset >= 32)? 1: 0); | |||
1336 | } else { | |||
1337 | cycle = (year - 1976) / 65 - 1; | |||
1338 | offset = -(year - 1976) % 65; | |||
1339 | shift = 2*cycle + ((offset <= 32)? 1: 0); | |||
1340 | } | |||
1341 | return year - 579 + shift; | |||
1342 | } | |||
1343 | void Calendar::setRelatedYear(int32_t year) | |||
1344 | { | |||
1345 | // modify for calendar type | |||
1346 | ECalType type = getCalendarType(getType()); | |||
1347 | switch (type) { | |||
1348 | case CALTYPE_PERSIAN: | |||
1349 | year -= 622; break; | |||
1350 | case CALTYPE_HEBREW: | |||
1351 | year += 3760; break; | |||
1352 | case CALTYPE_CHINESE: | |||
1353 | year += 2637; break; | |||
1354 | case CALTYPE_INDIAN: | |||
1355 | year -= 79; break; | |||
1356 | case CALTYPE_COPTIC: | |||
1357 | year -= 284; break; | |||
1358 | case CALTYPE_ETHIOPIC: | |||
1359 | year -= 8; break; | |||
1360 | case CALTYPE_ETHIOPIC_AMETE_ALEM: | |||
1361 | year +=5492; break; | |||
1362 | case CALTYPE_DANGI: | |||
1363 | year += 2333; break; | |||
1364 | case CALTYPE_ISLAMIC_CIVIL: | |||
1365 | case CALTYPE_ISLAMIC: | |||
1366 | case CALTYPE_ISLAMIC_UMALQURA: | |||
1367 | case CALTYPE_ISLAMIC_TBLA: | |||
1368 | case CALTYPE_ISLAMIC_RGSA: | |||
1369 | year = firstIslamicStartYearFromGrego(year); break; | |||
1370 | default: | |||
1371 | // CALTYPE_GREGORIAN | |||
1372 | // CALTYPE_JAPANESE | |||
1373 | // CALTYPE_BUDDHIST | |||
1374 | // CALTYPE_ROC | |||
1375 | // CALTYPE_ISO8601 | |||
1376 | // do nothing, EXTENDED_YEAR same as Gregorian | |||
1377 | break; | |||
1378 | } | |||
1379 | // set extended year | |||
1380 | set(UCAL_EXTENDED_YEAR, year); | |||
1381 | } | |||
1382 | ||||
1383 | // ------------------------------------- | |||
1384 | ||||
1385 | void | |||
1386 | Calendar::clear() | |||
1387 | { | |||
1388 | for (int32_t i=0; i<UCAL_FIELD_COUNT; ++i) { | |||
1389 | fFields[i] = 0; // Must do this; other code depends on it | |||
1390 | fStamp[i] = kUnset; | |||
1391 | fIsSet[i] = FALSE0; // Remove later | |||
1392 | } | |||
1393 | fIsTimeSet = fAreFieldsSet = fAreAllFieldsSet = fAreFieldsVirtuallySet = FALSE0; | |||
1394 | // fTime is not 'cleared' - may be used if no fields are set. | |||
1395 | } | |||
1396 | ||||
1397 | // ------------------------------------- | |||
1398 | ||||
1399 | void | |||
1400 | Calendar::clear(UCalendarDateFields field) | |||
1401 | { | |||
1402 | if (fAreFieldsVirtuallySet) { | |||
1403 | UErrorCode ec = U_ZERO_ERROR; | |||
1404 | computeFields(ec); | |||
1405 | } | |||
1406 | fFields[field] = 0; | |||
1407 | fStamp[field] = kUnset; | |||
1408 | fIsSet[field] = FALSE0; // Remove later | |||
1409 | fIsTimeSet = fAreFieldsSet = fAreAllFieldsSet = fAreFieldsVirtuallySet = FALSE0; | |||
1410 | } | |||
1411 | ||||
1412 | // ------------------------------------- | |||
1413 | ||||
1414 | UBool | |||
1415 | Calendar::isSet(UCalendarDateFields field) const | |||
1416 | { | |||
1417 | return fAreFieldsVirtuallySet || (fStamp[field] != kUnset); | |||
1418 | } | |||
1419 | ||||
1420 | ||||
1421 | int32_t Calendar::newestStamp(UCalendarDateFields first, UCalendarDateFields last, int32_t bestStampSoFar) const | |||
1422 | { | |||
1423 | int32_t bestStamp = bestStampSoFar; | |||
1424 | for (int32_t i=(int32_t)first; i<=(int32_t)last; ++i) { | |||
1425 | if (fStamp[i] > bestStamp) { | |||
1426 | bestStamp = fStamp[i]; | |||
1427 | } | |||
1428 | } | |||
1429 | return bestStamp; | |||
1430 | } | |||
1431 | ||||
1432 | ||||
1433 | // ------------------------------------- | |||
1434 | ||||
1435 | void | |||
1436 | Calendar::complete(UErrorCode& status) | |||
1437 | { | |||
1438 | if (!fIsTimeSet) { | |||
1439 | updateTime(status); | |||
1440 | /* Test for buffer overflows */ | |||
1441 | if(U_FAILURE(status)) { | |||
1442 | return; | |||
1443 | } | |||
1444 | } | |||
1445 | if (!fAreFieldsSet) { | |||
1446 | computeFields(status); // fills in unset fields | |||
1447 | /* Test for buffer overflows */ | |||
1448 | if(U_FAILURE(status)) { | |||
1449 | return; | |||
1450 | } | |||
1451 | fAreFieldsSet = TRUE1; | |||
1452 | fAreAllFieldsSet = TRUE1; | |||
1453 | } | |||
1454 | } | |||
1455 | ||||
1456 | //------------------------------------------------------------------------- | |||
1457 | // Protected utility methods for use by subclasses. These are very handy | |||
1458 | // for implementing add, roll, and computeFields. | |||
1459 | //------------------------------------------------------------------------- | |||
1460 | ||||
1461 | /** | |||
1462 | * Adjust the specified field so that it is within | |||
1463 | * the allowable range for the date to which this calendar is set. | |||
1464 | * For example, in a Gregorian calendar pinning the {@link #DAY_OF_MONTH DAY_OF_MONTH} | |||
1465 | * field for a calendar set to April 31 would cause it to be set | |||
1466 | * to April 30. | |||
1467 | * <p> | |||
1468 | * <b>Subclassing:</b> | |||
1469 | * <br> | |||
1470 | * This utility method is intended for use by subclasses that need to implement | |||
1471 | * their own overrides of {@link #roll roll} and {@link #add add}. | |||
1472 | * <p> | |||
1473 | * <b>Note:</b> | |||
1474 | * <code>pinField</code> is implemented in terms of | |||
1475 | * {@link #getActualMinimum getActualMinimum} | |||
1476 | * and {@link #getActualMaximum getActualMaximum}. If either of those methods uses | |||
1477 | * a slow, iterative algorithm for a particular field, it would be | |||
1478 | * unwise to attempt to call <code>pinField</code> for that field. If you | |||
1479 | * really do need to do so, you should override this method to do | |||
1480 | * something more efficient for that field. | |||
1481 | * <p> | |||
1482 | * @param field The calendar field whose value should be pinned. | |||
1483 | * | |||
1484 | * @see #getActualMinimum | |||
1485 | * @see #getActualMaximum | |||
1486 | * @stable ICU 2.0 | |||
1487 | */ | |||
1488 | void Calendar::pinField(UCalendarDateFields field, UErrorCode& status) { | |||
1489 | int32_t max = getActualMaximum(field, status); | |||
1490 | int32_t min = getActualMinimum(field, status); | |||
1491 | ||||
1492 | if (fFields[field] > max) { | |||
1493 | set(field, max); | |||
1494 | } else if (fFields[field] < min) { | |||
1495 | set(field, min); | |||
1496 | } | |||
1497 | } | |||
1498 | ||||
1499 | ||||
1500 | void Calendar::computeFields(UErrorCode &ec) | |||
1501 | { | |||
1502 | if (U_FAILURE(ec)) { | |||
1503 | return; | |||
1504 | } | |||
1505 | // Compute local wall millis | |||
1506 | double localMillis = internalGetTime(); | |||
1507 | int32_t rawOffset, dstOffset; | |||
1508 | getTimeZone().getOffset(localMillis, FALSE0, rawOffset, dstOffset, ec); | |||
1509 | localMillis += (rawOffset + dstOffset); | |||
1510 | ||||
1511 | // Mark fields as set. Do this before calling handleComputeFields(). | |||
1512 | uint32_t mask = //fInternalSetMask; | |||
1513 | (1 << UCAL_ERA) | | |||
1514 | (1 << UCAL_YEAR) | | |||
1515 | (1 << UCAL_MONTH) | | |||
1516 | (1 << UCAL_DAY_OF_MONTH) | // = UCAL_DATE | |||
1517 | (1 << UCAL_DAY_OF_YEAR) | | |||
1518 | (1 << UCAL_EXTENDED_YEAR); | |||
1519 | ||||
1520 | for (int32_t i=0; i<UCAL_FIELD_COUNT; ++i) { | |||
1521 | if ((mask & 1) == 0) { | |||
1522 | fStamp[i] = kInternallySet; | |||
1523 | fIsSet[i] = TRUE1; // Remove later | |||
1524 | } else { | |||
1525 | fStamp[i] = kUnset; | |||
1526 | fIsSet[i] = FALSE0; // Remove later | |||
1527 | } | |||
1528 | mask >>= 1; | |||
1529 | } | |||
1530 | ||||
1531 | // We used to check for and correct extreme millis values (near | |||
1532 | // Long.MIN_VALUE or Long.MAX_VALUE) here. Such values would cause | |||
1533 | // overflows from positive to negative (or vice versa) and had to | |||
1534 | // be manually tweaked. We no longer need to do this because we | |||
1535 | // have limited the range of supported dates to those that have a | |||
1536 | // Julian day that fits into an int. This allows us to implement a | |||
1537 | // JULIAN_DAY field and also removes some inelegant code. - Liu | |||
1538 | // 11/6/00 | |||
1539 | ||||
1540 | int32_t days = (int32_t)ClockMath::floorDivide(localMillis, (double)kOneDay(1.0 * (86400000))); | |||
1541 | ||||
1542 | internalSet(UCAL_JULIAN_DAY,days + kEpochStartAsJulianDay2440588); | |||
1543 | ||||
1544 | #if defined (U_DEBUG_CAL) | |||
1545 | //fprintf(stderr, "%s:%d- Hmm! Jules @ %d, as per %.0lf millis\n", | |||
1546 | //__FILE__, __LINE__, fFields[UCAL_JULIAN_DAY], localMillis); | |||
1547 | #endif | |||
1548 | ||||
1549 | computeGregorianAndDOWFields(fFields[UCAL_JULIAN_DAY], ec); | |||
1550 | ||||
1551 | // Call framework method to have subclass compute its fields. | |||
1552 | // These must include, at a minimum, MONTH, DAY_OF_MONTH, | |||
1553 | // EXTENDED_YEAR, YEAR, DAY_OF_YEAR. This method will call internalSet(), | |||
1554 | // which will update stamp[]. | |||
1555 | handleComputeFields(fFields[UCAL_JULIAN_DAY], ec); | |||
1556 | ||||
1557 | // Compute week-related fields, based on the subclass-computed | |||
1558 | // fields computed by handleComputeFields(). | |||
1559 | computeWeekFields(ec); | |||
1560 | ||||
1561 | // Compute time-related fields. These are independent of the date and | |||
1562 | // of the subclass algorithm. They depend only on the local zone | |||
1563 | // wall milliseconds in day. | |||
1564 | int32_t millisInDay = (int32_t) (localMillis - (days * kOneDay(1.0 * (86400000)))); | |||
1565 | fFields[UCAL_MILLISECONDS_IN_DAY] = millisInDay; | |||
1566 | fFields[UCAL_MILLISECOND] = millisInDay % 1000; | |||
1567 | millisInDay /= 1000; | |||
1568 | fFields[UCAL_SECOND] = millisInDay % 60; | |||
1569 | millisInDay /= 60; | |||
1570 | fFields[UCAL_MINUTE] = millisInDay % 60; | |||
1571 | millisInDay /= 60; | |||
1572 | fFields[UCAL_HOUR_OF_DAY] = millisInDay; | |||
1573 | fFields[UCAL_AM_PM] = millisInDay / 12; // Assume AM == 0 | |||
1574 | fFields[UCAL_HOUR] = millisInDay % 12; | |||
1575 | fFields[UCAL_ZONE_OFFSET] = rawOffset; | |||
1576 | fFields[UCAL_DST_OFFSET] = dstOffset; | |||
1577 | } | |||
1578 | ||||
1579 | uint8_t Calendar::julianDayToDayOfWeek(double julian) | |||
1580 | { | |||
1581 | // If julian is negative, then julian%7 will be negative, so we adjust | |||
1582 | // accordingly. We add 1 because Julian day 0 is Monday. | |||
1583 | int8_t dayOfWeek = (int8_t) uprv_fmoduprv_fmod_71(julian + 1, 7); | |||
1584 | ||||
1585 | uint8_t result = (uint8_t)(dayOfWeek + ((dayOfWeek < 0) ? (7+UCAL_SUNDAY ) : UCAL_SUNDAY)); | |||
1586 | return result; | |||
1587 | } | |||
1588 | ||||
1589 | /** | |||
1590 | * Compute the Gregorian calendar year, month, and day of month from | |||
1591 | * the given Julian day. These values are not stored in fields, but in | |||
1592 | * member variables gregorianXxx. Also compute the DAY_OF_WEEK and | |||
1593 | * DOW_LOCAL fields. | |||
1594 | */ | |||
1595 | void Calendar::computeGregorianAndDOWFields(int32_t julianDay, UErrorCode &ec) | |||
1596 | { | |||
1597 | computeGregorianFields(julianDay, ec); | |||
1598 | ||||
1599 | // Compute day of week: JD 0 = Monday | |||
1600 | int32_t dow = julianDayToDayOfWeek(julianDay); | |||
1601 | internalSet(UCAL_DAY_OF_WEEK,dow); | |||
1602 | ||||
1603 | // Calculate 1-based localized day of week | |||
1604 | int32_t dowLocal = dow - getFirstDayOfWeek() + 1; | |||
1605 | if (dowLocal < 1) { | |||
1606 | dowLocal += 7; | |||
1607 | } | |||
1608 | internalSet(UCAL_DOW_LOCAL,dowLocal); | |||
1609 | fFields[UCAL_DOW_LOCAL] = dowLocal; | |||
1610 | } | |||
1611 | ||||
1612 | /** | |||
1613 | * Compute the Gregorian calendar year, month, and day of month from the | |||
1614 | * Julian day. These values are not stored in fields, but in member | |||
1615 | * variables gregorianXxx. They are used for time zone computations and by | |||
1616 | * subclasses that are Gregorian derivatives. Subclasses may call this | |||
1617 | * method to perform a Gregorian calendar millis->fields computation. | |||
1618 | */ | |||
1619 | void Calendar::computeGregorianFields(int32_t julianDay, UErrorCode & /* ec */) { | |||
1620 | int32_t gregorianDayOfWeekUnused; | |||
1621 | Grego::dayToFields(julianDay - kEpochStartAsJulianDay2440588, fGregorianYear, fGregorianMonth, fGregorianDayOfMonth, gregorianDayOfWeekUnused, fGregorianDayOfYear); | |||
1622 | } | |||
1623 | ||||
1624 | /** | |||
1625 | * Compute the fields WEEK_OF_YEAR, YEAR_WOY, WEEK_OF_MONTH, | |||
1626 | * DAY_OF_WEEK_IN_MONTH, and DOW_LOCAL from EXTENDED_YEAR, YEAR, | |||
1627 | * DAY_OF_WEEK, and DAY_OF_YEAR. The latter fields are computed by the | |||
1628 | * subclass based on the calendar system. | |||
1629 | * | |||
1630 | * <p>The YEAR_WOY field is computed simplistically. It is equal to YEAR | |||
1631 | * most of the time, but at the year boundary it may be adjusted to YEAR-1 | |||
1632 | * or YEAR+1 to reflect the overlap of a week into an adjacent year. In | |||
1633 | * this case, a simple increment or decrement is performed on YEAR, even | |||
1634 | * though this may yield an invalid YEAR value. For instance, if the YEAR | |||
1635 | * is part of a calendar system with an N-year cycle field CYCLE, then | |||
1636 | * incrementing the YEAR may involve incrementing CYCLE and setting YEAR | |||
1637 | * back to 0 or 1. This is not handled by this code, and in fact cannot be | |||
1638 | * simply handled without having subclasses define an entire parallel set of | |||
1639 | * fields for fields larger than or equal to a year. This additional | |||
1640 | * complexity is not warranted, since the intention of the YEAR_WOY field is | |||
1641 | * to support ISO 8601 notation, so it will typically be used with a | |||
1642 | * proleptic Gregorian calendar, which has no field larger than a year. | |||
1643 | */ | |||
1644 | void Calendar::computeWeekFields(UErrorCode &ec) { | |||
1645 | if(U_FAILURE(ec)) { | |||
1646 | return; | |||
1647 | } | |||
1648 | int32_t eyear = fFields[UCAL_EXTENDED_YEAR]; | |||
1649 | int32_t dayOfWeek = fFields[UCAL_DAY_OF_WEEK]; | |||
1650 | int32_t dayOfYear = fFields[UCAL_DAY_OF_YEAR]; | |||
1651 | ||||
1652 | // WEEK_OF_YEAR start | |||
1653 | // Compute the week of the year. For the Gregorian calendar, valid week | |||
1654 | // numbers run from 1 to 52 or 53, depending on the year, the first day | |||
1655 | // of the week, and the minimal days in the first week. For other | |||
1656 | // calendars, the valid range may be different -- it depends on the year | |||
1657 | // length. Days at the start of the year may fall into the last week of | |||
1658 | // the previous year; days at the end of the year may fall into the | |||
1659 | // first week of the next year. ASSUME that the year length is less than | |||
1660 | // 7000 days. | |||
1661 | int32_t yearOfWeekOfYear = eyear; | |||
1662 | int32_t relDow = (dayOfWeek + 7 - getFirstDayOfWeek()) % 7; // 0..6 | |||
1663 | int32_t relDowJan1 = (dayOfWeek - dayOfYear + 7001 - getFirstDayOfWeek()) % 7; // 0..6 | |||
1664 | int32_t woy = (dayOfYear - 1 + relDowJan1) / 7; // 0..53 | |||
1665 | if ((7 - relDowJan1) >= getMinimalDaysInFirstWeek()) { | |||
1666 | ++woy; | |||
1667 | } | |||
1668 | ||||
1669 | // Adjust for weeks at the year end that overlap into the previous or | |||
1670 | // next calendar year. | |||
1671 | if (woy == 0) { | |||
1672 | // We are the last week of the previous year. | |||
1673 | // Check to see if we are in the last week; if so, we need | |||
1674 | // to handle the case in which we are the first week of the | |||
1675 | // next year. | |||
1676 | ||||
1677 | int32_t prevDoy = dayOfYear + handleGetYearLength(eyear - 1); | |||
1678 | woy = weekNumber(prevDoy, dayOfWeek); | |||
1679 | yearOfWeekOfYear--; | |||
1680 | } else { | |||
1681 | int32_t lastDoy = handleGetYearLength(eyear); | |||
1682 | // Fast check: For it to be week 1 of the next year, the DOY | |||
1683 | // must be on or after L-5, where L is yearLength(), then it | |||
1684 | // cannot possibly be week 1 of the next year: | |||
1685 | // L-5 L | |||
1686 | // doy: 359 360 361 362 363 364 365 001 | |||
1687 | // dow: 1 2 3 4 5 6 7 | |||
1688 | if (dayOfYear >= (lastDoy - 5)) { | |||
1689 | int32_t lastRelDow = (relDow + lastDoy - dayOfYear) % 7; | |||
1690 | if (lastRelDow < 0) { | |||
1691 | lastRelDow += 7; | |||
1692 | } | |||
1693 | if (((6 - lastRelDow) >= getMinimalDaysInFirstWeek()) && | |||
1694 | ((dayOfYear + 7 - relDow) > lastDoy)) { | |||
1695 | woy = 1; | |||
1696 | yearOfWeekOfYear++; | |||
1697 | } | |||
1698 | } | |||
1699 | } | |||
1700 | fFields[UCAL_WEEK_OF_YEAR] = woy; | |||
1701 | fFields[UCAL_YEAR_WOY] = yearOfWeekOfYear; | |||
1702 | // WEEK_OF_YEAR end | |||
1703 | ||||
1704 | int32_t dayOfMonth = fFields[UCAL_DAY_OF_MONTH]; | |||
1705 | fFields[UCAL_WEEK_OF_MONTH] = weekNumber(dayOfMonth, dayOfWeek); | |||
1706 | fFields[UCAL_DAY_OF_WEEK_IN_MONTH] = (dayOfMonth-1) / 7 + 1; | |||
1707 | #if defined (U_DEBUG_CAL) | |||
1708 | if(fFields[UCAL_DAY_OF_WEEK_IN_MONTH]==0) fprintf(stderrstderr, "%s:%d: DOWIM %d on %g\n", | |||
1709 | __FILE__"../deps/icu-small/source/i18n/calendar.cpp", __LINE__1709,fFields[UCAL_DAY_OF_WEEK_IN_MONTH], fTime); | |||
1710 | #endif | |||
1711 | } | |||
1712 | ||||
1713 | ||||
1714 | int32_t Calendar::weekNumber(int32_t desiredDay, int32_t dayOfPeriod, int32_t dayOfWeek) | |||
1715 | { | |||
1716 | // Determine the day of the week of the first day of the period | |||
1717 | // in question (either a year or a month). Zero represents the | |||
1718 | // first day of the week on this calendar. | |||
1719 | int32_t periodStartDayOfWeek = (dayOfWeek - getFirstDayOfWeek() - dayOfPeriod + 1) % 7; | |||
1720 | if (periodStartDayOfWeek < 0) periodStartDayOfWeek += 7; | |||
1721 | ||||
1722 | // Compute the week number. Initially, ignore the first week, which | |||
1723 | // may be fractional (or may not be). We add periodStartDayOfWeek in | |||
1724 | // order to fill out the first week, if it is fractional. | |||
1725 | int32_t weekNo = (desiredDay + periodStartDayOfWeek - 1)/7; | |||
1726 | ||||
1727 | // If the first week is long enough, then count it. If | |||
1728 | // the minimal days in the first week is one, or if the period start | |||
1729 | // is zero, we always increment weekNo. | |||
1730 | if ((7 - periodStartDayOfWeek) >= getMinimalDaysInFirstWeek()) ++weekNo; | |||
1731 | ||||
1732 | return weekNo; | |||
1733 | } | |||
1734 | ||||
1735 | void Calendar::handleComputeFields(int32_t /* julianDay */, UErrorCode &/* status */) | |||
1736 | { | |||
1737 | internalSet(UCAL_MONTH, getGregorianMonth()); | |||
1738 | internalSet(UCAL_DAY_OF_MONTH, getGregorianDayOfMonth()); | |||
1739 | internalSet(UCAL_DAY_OF_YEAR, getGregorianDayOfYear()); | |||
1740 | int32_t eyear = getGregorianYear(); | |||
1741 | internalSet(UCAL_EXTENDED_YEAR, eyear); | |||
1742 | int32_t era = GregorianCalendar::AD; | |||
1743 | if (eyear < 1) { | |||
1744 | era = GregorianCalendar::BC; | |||
1745 | eyear = 1 - eyear; | |||
1746 | } | |||
1747 | internalSet(UCAL_ERA, era); | |||
1748 | internalSet(UCAL_YEAR, eyear); | |||
1749 | } | |||
1750 | // ------------------------------------- | |||
1751 | ||||
1752 | ||||
1753 | void Calendar::roll(EDateFields field, int32_t amount, UErrorCode& status) | |||
1754 | { | |||
1755 | roll((UCalendarDateFields)field, amount, status); | |||
1756 | } | |||
1757 | ||||
1758 | void Calendar::roll(UCalendarDateFields field, int32_t amount, UErrorCode& status) | |||
1759 | { | |||
1760 | if (amount == 0) { | |||
1761 | return; // Nothing to do | |||
1762 | } | |||
1763 | ||||
1764 | complete(status); | |||
1765 | ||||
1766 | if(U_FAILURE(status)) { | |||
1767 | return; | |||
1768 | } | |||
1769 | switch (field) { | |||
1770 | case UCAL_DAY_OF_MONTH: | |||
1771 | case UCAL_AM_PM: | |||
1772 | case UCAL_MINUTE: | |||
1773 | case UCAL_SECOND: | |||
1774 | case UCAL_MILLISECOND: | |||
1775 | case UCAL_MILLISECONDS_IN_DAY: | |||
1776 | case UCAL_ERA: | |||
1777 | // These are the standard roll instructions. These work for all | |||
1778 | // simple cases, that is, cases in which the limits are fixed, such | |||
1779 | // as the hour, the day of the month, and the era. | |||
1780 | { | |||
1781 | int32_t min = getActualMinimum(field,status); | |||
1782 | int32_t max = getActualMaximum(field,status); | |||
1783 | int32_t gap = max - min + 1; | |||
1784 | ||||
1785 | int32_t value = internalGet(field) + amount; | |||
1786 | value = (value - min) % gap; | |||
1787 | if (value < 0) { | |||
1788 | value += gap; | |||
1789 | } | |||
1790 | value += min; | |||
1791 | ||||
1792 | set(field, value); | |||
1793 | return; | |||
1794 | } | |||
1795 | ||||
1796 | case UCAL_HOUR: | |||
1797 | case UCAL_HOUR_OF_DAY: | |||
1798 | // Rolling the hour is difficult on the ONSET and CEASE days of | |||
1799 | // daylight savings. For example, if the change occurs at | |||
1800 | // 2 AM, we have the following progression: | |||
1801 | // ONSET: 12 Std -> 1 Std -> 3 Dst -> 4 Dst | |||
1802 | // CEASE: 12 Dst -> 1 Dst -> 1 Std -> 2 Std | |||
1803 | // To get around this problem we don't use fields; we manipulate | |||
1804 | // the time in millis directly. | |||
1805 | { | |||
1806 | // Assume min == 0 in calculations below | |||
1807 | double start = getTimeInMillis(status); | |||
1808 | int32_t oldHour = internalGet(field); | |||
1809 | int32_t max = getMaximum(field); | |||
1810 | int32_t newHour = (oldHour + amount) % (max + 1); | |||
1811 | if (newHour < 0) { | |||
1812 | newHour += max + 1; | |||
1813 | } | |||
1814 | setTimeInMillis(start + kOneHour(60*60*1000) * (newHour - oldHour),status); | |||
1815 | return; | |||
1816 | } | |||
1817 | ||||
1818 | case UCAL_MONTH: | |||
1819 | // Rolling the month involves both pinning the final value | |||
1820 | // and adjusting the DAY_OF_MONTH if necessary. We only adjust the | |||
1821 | // DAY_OF_MONTH if, after updating the MONTH field, it is illegal. | |||
1822 | // E.g., <jan31>.roll(MONTH, 1) -> <feb28> or <feb29>. | |||
1823 | { | |||
1824 | int32_t max = getActualMaximum(UCAL_MONTH, status); | |||
1825 | int32_t mon = (internalGet(UCAL_MONTH) + amount) % (max+1); | |||
1826 | ||||
1827 | if (mon < 0) { | |||
1828 | mon += (max + 1); | |||
1829 | } | |||
1830 | set(UCAL_MONTH, mon); | |||
1831 | ||||
1832 | // Keep the day of month in range. We don't want to spill over | |||
1833 | // into the next month; e.g., we don't want jan31 + 1 mo -> feb31 -> | |||
1834 | // mar3. | |||
1835 | pinField(UCAL_DAY_OF_MONTH,status); | |||
1836 | return; | |||
1837 | } | |||
1838 | ||||
1839 | case UCAL_YEAR: | |||
1840 | case UCAL_YEAR_WOY: | |||
1841 | { | |||
1842 | // * If era==0 and years go backwards in time, change sign of amount. | |||
1843 | // * Until we have new API per #9393, we temporarily hardcode knowledge of | |||
1844 | // which calendars have era 0 years that go backwards. | |||
1845 | UBool era0WithYearsThatGoBackwards = FALSE0; | |||
1846 | int32_t era = get(UCAL_ERA, status); | |||
1847 | if (era == 0) { | |||
1848 | const char * calType = getType(); | |||
1849 | if ( uprv_strcmp(calType,"gregorian"):: strcmp(calType, "gregorian")==0 || uprv_strcmp(calType,"roc"):: strcmp(calType, "roc")==0 || uprv_strcmp(calType,"coptic"):: strcmp(calType, "coptic")==0 ) { | |||
1850 | amount = -amount; | |||
1851 | era0WithYearsThatGoBackwards = TRUE1; | |||
1852 | } | |||
1853 | } | |||
1854 | int32_t newYear = internalGet(field) + amount; | |||
1855 | if (era > 0 || newYear >= 1) { | |||
1856 | int32_t maxYear = getActualMaximum(field, status); | |||
1857 | if (maxYear < 32768) { | |||
1858 | // this era has real bounds, roll should wrap years | |||
1859 | if (newYear < 1) { | |||
1860 | newYear = maxYear - ((-newYear) % maxYear); | |||
1861 | } else if (newYear > maxYear) { | |||
1862 | newYear = ((newYear - 1) % maxYear) + 1; | |||
1863 | } | |||
1864 | // else era is unbounded, just pin low year instead of wrapping | |||
1865 | } else if (newYear < 1) { | |||
1866 | newYear = 1; | |||
1867 | } | |||
1868 | // else we are in era 0 with newYear < 1; | |||
1869 | // calendars with years that go backwards must pin the year value at 0, | |||
1870 | // other calendars can have years < 0 in era 0 | |||
1871 | } else if (era0WithYearsThatGoBackwards) { | |||
1872 | newYear = 1; | |||
1873 | } | |||
1874 | set(field, newYear); | |||
1875 | pinField(UCAL_MONTH,status); | |||
1876 | pinField(UCAL_DAY_OF_MONTH,status); | |||
1877 | return; | |||
1878 | } | |||
1879 | ||||
1880 | case UCAL_EXTENDED_YEAR: | |||
1881 | // Rolling the year can involve pinning the DAY_OF_MONTH. | |||
1882 | set(field, internalGet(field) + amount); | |||
1883 | pinField(UCAL_MONTH,status); | |||
1884 | pinField(UCAL_DAY_OF_MONTH,status); | |||
1885 | return; | |||
1886 | ||||
1887 | case UCAL_WEEK_OF_MONTH: | |||
1888 | { | |||
1889 | // This is tricky, because during the roll we may have to shift | |||
1890 | // to a different day of the week. For example: | |||
1891 | ||||
1892 | // s m t w r f s | |||
1893 | // 1 2 3 4 5 | |||
1894 | // 6 7 8 9 10 11 12 | |||
1895 | ||||
1896 | // When rolling from the 6th or 7th back one week, we go to the | |||
1897 | // 1st (assuming that the first partial week counts). The same | |||
1898 | // thing happens at the end of the month. | |||
1899 | ||||
1900 | // The other tricky thing is that we have to figure out whether | |||
1901 | // the first partial week actually counts or not, based on the | |||
1902 | // minimal first days in the week. And we have to use the | |||
1903 | // correct first day of the week to delineate the week | |||
1904 | // boundaries. | |||
1905 | ||||
1906 | // Here's our algorithm. First, we find the real boundaries of | |||
1907 | // the month. Then we discard the first partial week if it | |||
1908 | // doesn't count in this locale. Then we fill in the ends with | |||
1909 | // phantom days, so that the first partial week and the last | |||
1910 | // partial week are full weeks. We then have a nice square | |||
1911 | // block of weeks. We do the usual rolling within this block, | |||
1912 | // as is done elsewhere in this method. If we wind up on one of | |||
1913 | // the phantom days that we added, we recognize this and pin to | |||
1914 | // the first or the last day of the month. Easy, eh? | |||
1915 | ||||
1916 | // Normalize the DAY_OF_WEEK so that 0 is the first day of the week | |||
1917 | // in this locale. We have dow in 0..6. | |||
1918 | int32_t dow = internalGet(UCAL_DAY_OF_WEEK) - getFirstDayOfWeek(); | |||
1919 | if (dow < 0) dow += 7; | |||
1920 | ||||
1921 | // Find the day of the week (normalized for locale) for the first | |||
1922 | // of the month. | |||
1923 | int32_t fdm = (dow - internalGet(UCAL_DAY_OF_MONTH) + 1) % 7; | |||
1924 | if (fdm < 0) fdm += 7; | |||
1925 | ||||
1926 | // Get the first day of the first full week of the month, | |||
1927 | // including phantom days, if any. Figure out if the first week | |||
1928 | // counts or not; if it counts, then fill in phantom days. If | |||
1929 | // not, advance to the first real full week (skip the partial week). | |||
1930 | int32_t start; | |||
1931 | if ((7 - fdm) < getMinimalDaysInFirstWeek()) | |||
1932 | start = 8 - fdm; // Skip the first partial week | |||
1933 | else | |||
1934 | start = 1 - fdm; // This may be zero or negative | |||
1935 | ||||
1936 | // Get the day of the week (normalized for locale) for the last | |||
1937 | // day of the month. | |||
1938 | int32_t monthLen = getActualMaximum(UCAL_DAY_OF_MONTH, status); | |||
1939 | int32_t ldm = (monthLen - internalGet(UCAL_DAY_OF_MONTH) + dow) % 7; | |||
1940 | // We know monthLen >= DAY_OF_MONTH so we skip the += 7 step here. | |||
1941 | ||||
1942 | // Get the limit day for the blocked-off rectangular month; that | |||
1943 | // is, the day which is one past the last day of the month, | |||
1944 | // after the month has already been filled in with phantom days | |||
1945 | // to fill out the last week. This day has a normalized DOW of 0. | |||
1946 | int32_t limit = monthLen + 7 - ldm; | |||
1947 | ||||
1948 | // Now roll between start and (limit - 1). | |||
1949 | int32_t gap = limit - start; | |||
1950 | int32_t day_of_month = (internalGet(UCAL_DAY_OF_MONTH) + amount*7 - | |||
1951 | start) % gap; | |||
1952 | if (day_of_month < 0) day_of_month += gap; | |||
1953 | day_of_month += start; | |||
1954 | ||||
1955 | // Finally, pin to the real start and end of the month. | |||
1956 | if (day_of_month < 1) day_of_month = 1; | |||
1957 | if (day_of_month > monthLen) day_of_month = monthLen; | |||
1958 | ||||
1959 | // Set the DAY_OF_MONTH. We rely on the fact that this field | |||
1960 | // takes precedence over everything else (since all other fields | |||
1961 | // are also set at this point). If this fact changes (if the | |||
1962 | // disambiguation algorithm changes) then we will have to unset | |||
1963 | // the appropriate fields here so that DAY_OF_MONTH is attended | |||
1964 | // to. | |||
1965 | set(UCAL_DAY_OF_MONTH, day_of_month); | |||
1966 | return; | |||
1967 | } | |||
1968 | case UCAL_WEEK_OF_YEAR: | |||
1969 | { | |||
1970 | // This follows the outline of WEEK_OF_MONTH, except it applies | |||
1971 | // to the whole year. Please see the comment for WEEK_OF_MONTH | |||
1972 | // for general notes. | |||
1973 | ||||
1974 | // Normalize the DAY_OF_WEEK so that 0 is the first day of the week | |||
1975 | // in this locale. We have dow in 0..6. | |||
1976 | int32_t dow = internalGet(UCAL_DAY_OF_WEEK) - getFirstDayOfWeek(); | |||
1977 | if (dow < 0) dow += 7; | |||
1978 | ||||
1979 | // Find the day of the week (normalized for locale) for the first | |||
1980 | // of the year. | |||
1981 | int32_t fdy = (dow - internalGet(UCAL_DAY_OF_YEAR) + 1) % 7; | |||
1982 | if (fdy < 0) fdy += 7; | |||
1983 | ||||
1984 | // Get the first day of the first full week of the year, | |||
1985 | // including phantom days, if any. Figure out if the first week | |||
1986 | // counts or not; if it counts, then fill in phantom days. If | |||
1987 | // not, advance to the first real full week (skip the partial week). | |||
1988 | int32_t start; | |||
1989 | if ((7 - fdy) < getMinimalDaysInFirstWeek()) | |||
1990 | start = 8 - fdy; // Skip the first partial week | |||
1991 | else | |||
1992 | start = 1 - fdy; // This may be zero or negative | |||
1993 | ||||
1994 | // Get the day of the week (normalized for locale) for the last | |||
1995 | // day of the year. | |||
1996 | int32_t yearLen = getActualMaximum(UCAL_DAY_OF_YEAR,status); | |||
1997 | int32_t ldy = (yearLen - internalGet(UCAL_DAY_OF_YEAR) + dow) % 7; | |||
1998 | // We know yearLen >= DAY_OF_YEAR so we skip the += 7 step here. | |||
1999 | ||||
2000 | // Get the limit day for the blocked-off rectangular year; that | |||
2001 | // is, the day which is one past the last day of the year, | |||
2002 | // after the year has already been filled in with phantom days | |||
2003 | // to fill out the last week. This day has a normalized DOW of 0. | |||
2004 | int32_t limit = yearLen + 7 - ldy; | |||
2005 | ||||
2006 | // Now roll between start and (limit - 1). | |||
2007 | int32_t gap = limit - start; | |||
2008 | int32_t day_of_year = (internalGet(UCAL_DAY_OF_YEAR) + amount*7 - | |||
2009 | start) % gap; | |||
2010 | if (day_of_year < 0) day_of_year += gap; | |||
2011 | day_of_year += start; | |||
2012 | ||||
2013 | // Finally, pin to the real start and end of the month. | |||
2014 | if (day_of_year < 1) day_of_year = 1; | |||
2015 | if (day_of_year > yearLen) day_of_year = yearLen; | |||
2016 | ||||
2017 | // Make sure that the year and day of year are attended to by | |||
2018 | // clearing other fields which would normally take precedence. | |||
2019 | // If the disambiguation algorithm is changed, this section will | |||
2020 | // have to be updated as well. | |||
2021 | set(UCAL_DAY_OF_YEAR, day_of_year); | |||
2022 | clear(UCAL_MONTH); | |||
2023 | return; | |||
2024 | } | |||
2025 | case UCAL_DAY_OF_YEAR: | |||
2026 | { | |||
2027 | // Roll the day of year using millis. Compute the millis for | |||
2028 | // the start of the year, and get the length of the year. | |||
2029 | double delta = amount * kOneDay(1.0 * (86400000)); // Scale up from days to millis | |||
2030 | double min2 = internalGet(UCAL_DAY_OF_YEAR)-1; | |||
2031 | min2 *= kOneDay(1.0 * (86400000)); | |||
2032 | min2 = internalGetTime() - min2; | |||
2033 | ||||
2034 | // double min2 = internalGetTime() - (internalGet(UCAL_DAY_OF_YEAR) - 1.0) * kOneDay; | |||
2035 | double newtime; | |||
2036 | ||||
2037 | double yearLength = getActualMaximum(UCAL_DAY_OF_YEAR,status); | |||
2038 | double oneYear = yearLength; | |||
2039 | oneYear *= kOneDay(1.0 * (86400000)); | |||
2040 | newtime = uprv_fmoduprv_fmod_71((internalGetTime() + delta - min2), oneYear); | |||
2041 | if (newtime < 0) newtime += oneYear; | |||
2042 | setTimeInMillis(newtime + min2, status); | |||
2043 | return; | |||
2044 | } | |||
2045 | case UCAL_DAY_OF_WEEK: | |||
2046 | case UCAL_DOW_LOCAL: | |||
2047 | { | |||
2048 | // Roll the day of week using millis. Compute the millis for | |||
2049 | // the start of the week, using the first day of week setting. | |||
2050 | // Restrict the millis to [start, start+7days). | |||
2051 | double delta = amount * kOneDay(1.0 * (86400000)); // Scale up from days to millis | |||
2052 | // Compute the number of days before the current day in this | |||
2053 | // week. This will be a value 0..6. | |||
2054 | int32_t leadDays = internalGet(field); | |||
2055 | leadDays -= (field == UCAL_DAY_OF_WEEK) ? getFirstDayOfWeek() : 1; | |||
2056 | if (leadDays < 0) leadDays += 7; | |||
2057 | double min2 = internalGetTime() - leadDays * kOneDay(1.0 * (86400000)); | |||
2058 | double newtime = uprv_fmoduprv_fmod_71((internalGetTime() + delta - min2), kOneWeek(7.0 * (1.0 * (86400000)))); | |||
2059 | if (newtime < 0) newtime += kOneWeek(7.0 * (1.0 * (86400000))); | |||
2060 | setTimeInMillis(newtime + min2, status); | |||
2061 | return; | |||
2062 | } | |||
2063 | case UCAL_DAY_OF_WEEK_IN_MONTH: | |||
2064 | { | |||
2065 | // Roll the day of week in the month using millis. Determine | |||
2066 | // the first day of the week in the month, and then the last, | |||
2067 | // and then roll within that range. | |||
2068 | double delta = amount * kOneWeek(7.0 * (1.0 * (86400000))); // Scale up from weeks to millis | |||
2069 | // Find the number of same days of the week before this one | |||
2070 | // in this month. | |||
2071 | int32_t preWeeks = (internalGet(UCAL_DAY_OF_MONTH) - 1) / 7; | |||
2072 | // Find the number of same days of the week after this one | |||
2073 | // in this month. | |||
2074 | int32_t postWeeks = (getActualMaximum(UCAL_DAY_OF_MONTH,status) - | |||
2075 | internalGet(UCAL_DAY_OF_MONTH)) / 7; | |||
2076 | // From these compute the min and gap millis for rolling. | |||
2077 | double min2 = internalGetTime() - preWeeks * kOneWeek(7.0 * (1.0 * (86400000))); | |||
2078 | double gap2 = kOneWeek(7.0 * (1.0 * (86400000))) * (preWeeks + postWeeks + 1); // Must add 1! | |||
2079 | // Roll within this range | |||
2080 | double newtime = uprv_fmoduprv_fmod_71((internalGetTime() + delta - min2), gap2); | |||
2081 | if (newtime < 0) newtime += gap2; | |||
2082 | setTimeInMillis(newtime + min2, status); | |||
2083 | return; | |||
2084 | } | |||
2085 | case UCAL_JULIAN_DAY: | |||
2086 | set(field, internalGet(field) + amount); | |||
2087 | return; | |||
2088 | default: | |||
2089 | // Other fields cannot be rolled by this method | |||
2090 | #if defined (U_DEBUG_CAL) | |||
2091 | fprintf(stderrstderr, "%s:%d: ILLEGAL ARG because of roll on non-rollable field %s\n", | |||
2092 | __FILE__"../deps/icu-small/source/i18n/calendar.cpp", __LINE__2092,fldName(field)); | |||
2093 | #endif | |||
2094 | status = U_ILLEGAL_ARGUMENT_ERROR; | |||
2095 | } | |||
2096 | } | |||
2097 | ||||
2098 | void Calendar::add(EDateFields field, int32_t amount, UErrorCode& status) | |||
2099 | { | |||
2100 | Calendar::add((UCalendarDateFields)field, amount, status); | |||
2101 | } | |||
2102 | ||||
2103 | // ------------------------------------- | |||
2104 | void Calendar::add(UCalendarDateFields field, int32_t amount, UErrorCode& status) | |||
2105 | { | |||
2106 | if (amount == 0) { | |||
2107 | return; // Do nothing! | |||
2108 | } | |||
2109 | ||||
2110 | // We handle most fields in the same way. The algorithm is to add | |||
2111 | // a computed amount of millis to the current millis. The only | |||
2112 | // wrinkle is with DST (and/or a change to the zone's UTC offset, which | |||
2113 | // we'll include with DST) -- for some fields, like the DAY_OF_MONTH, | |||
2114 | // we don't want the wall time to shift due to changes in DST. If the | |||
2115 | // result of the add operation is to move from DST to Standard, or | |||
2116 | // vice versa, we need to adjust by an hour forward or back, | |||
2117 | // respectively. For such fields we set keepWallTimeInvariant to TRUE. | |||
2118 | ||||
2119 | // We only adjust the DST for fields larger than an hour. For | |||
2120 | // fields smaller than an hour, we cannot adjust for DST without | |||
2121 | // causing problems. for instance, if you add one hour to April 5, | |||
2122 | // 1998, 1:00 AM, in PST, the time becomes "2:00 AM PDT" (an | |||
2123 | // illegal value), but then the adjustment sees the change and | |||
2124 | // compensates by subtracting an hour. As a result the time | |||
2125 | // doesn't advance at all. | |||
2126 | ||||
2127 | // For some fields larger than a day, such as a UCAL_MONTH, we pin the | |||
2128 | // UCAL_DAY_OF_MONTH. This allows <March 31>.add(UCAL_MONTH, 1) to be | |||
2129 | // <April 30>, rather than <April 31> => <May 1>. | |||
2130 | ||||
2131 | double delta = amount; // delta in ms | |||
2132 | UBool keepWallTimeInvariant = TRUE1; | |||
2133 | ||||
2134 | switch (field) { | |||
2135 | case UCAL_ERA: | |||
2136 | set(field, get(field, status) + amount); | |||
2137 | pinField(UCAL_ERA, status); | |||
2138 | return; | |||
2139 | ||||
2140 | case UCAL_YEAR: | |||
2141 | case UCAL_YEAR_WOY: | |||
2142 | { | |||
2143 | // * If era=0 and years go backwards in time, change sign of amount. | |||
2144 | // * Until we have new API per #9393, we temporarily hardcode knowledge of | |||
2145 | // which calendars have era 0 years that go backwards. | |||
2146 | // * Note that for UCAL_YEAR (but not UCAL_YEAR_WOY) we could instead handle | |||
2147 | // this by applying the amount to the UCAL_EXTENDED_YEAR field; but since | |||
2148 | // we would still need to handle UCAL_YEAR_WOY as below, might as well | |||
2149 | // also handle UCAL_YEAR the same way. | |||
2150 | int32_t era = get(UCAL_ERA, status); | |||
2151 | if (era == 0) { | |||
2152 | const char * calType = getType(); | |||
2153 | if ( uprv_strcmp(calType,"gregorian"):: strcmp(calType, "gregorian")==0 || uprv_strcmp(calType,"roc"):: strcmp(calType, "roc")==0 || uprv_strcmp(calType,"coptic"):: strcmp(calType, "coptic")==0 ) { | |||
2154 | amount = -amount; | |||
2155 | } | |||
2156 | } | |||
2157 | } | |||
2158 | // Fall through into normal handling | |||
2159 | U_FALLTHROUGH[[clang::fallthrough]]; | |||
2160 | case UCAL_EXTENDED_YEAR: | |||
2161 | case UCAL_MONTH: | |||
2162 | { | |||
2163 | UBool oldLenient = isLenient(); | |||
2164 | setLenient(TRUE1); | |||
2165 | set(field, get(field, status) + amount); | |||
2166 | pinField(UCAL_DAY_OF_MONTH, status); | |||
2167 | if(oldLenient==FALSE0) { | |||
2168 | complete(status); /* force recalculate */ | |||
2169 | setLenient(oldLenient); | |||
2170 | } | |||
2171 | } | |||
2172 | return; | |||
2173 | ||||
2174 | case UCAL_WEEK_OF_YEAR: | |||
2175 | case UCAL_WEEK_OF_MONTH: | |||
2176 | case UCAL_DAY_OF_WEEK_IN_MONTH: | |||
2177 | delta *= kOneWeek(7.0 * (1.0 * (86400000))); | |||
2178 | break; | |||
2179 | ||||
2180 | case UCAL_AM_PM: | |||
2181 | delta *= 12 * kOneHour(60*60*1000); | |||
2182 | break; | |||
2183 | ||||
2184 | case UCAL_DAY_OF_MONTH: | |||
2185 | case UCAL_DAY_OF_YEAR: | |||
2186 | case UCAL_DAY_OF_WEEK: | |||
2187 | case UCAL_DOW_LOCAL: | |||
2188 | case UCAL_JULIAN_DAY: | |||
2189 | delta *= kOneDay(1.0 * (86400000)); | |||
2190 | break; | |||
2191 | ||||
2192 | case UCAL_HOUR_OF_DAY: | |||
2193 | case UCAL_HOUR: | |||
2194 | delta *= kOneHour(60*60*1000); | |||
2195 | keepWallTimeInvariant = FALSE0; | |||
2196 | break; | |||
2197 | ||||
2198 | case UCAL_MINUTE: | |||
2199 | delta *= kOneMinute60000; | |||
2200 | keepWallTimeInvariant = FALSE0; | |||
2201 | break; | |||
2202 | ||||
2203 | case UCAL_SECOND: | |||
2204 | delta *= kOneSecond1000; | |||
2205 | keepWallTimeInvariant = FALSE0; | |||
2206 | break; | |||
2207 | ||||
2208 | case UCAL_MILLISECOND: | |||
2209 | case UCAL_MILLISECONDS_IN_DAY: | |||
2210 | keepWallTimeInvariant = FALSE0; | |||
2211 | break; | |||
2212 | ||||
2213 | default: | |||
2214 | #if defined (U_DEBUG_CAL) | |||
2215 | fprintf(stderrstderr, "%s:%d: ILLEGAL ARG because field %s not addable", | |||
2216 | __FILE__"../deps/icu-small/source/i18n/calendar.cpp", __LINE__2216, fldName(field)); | |||
2217 | #endif | |||
2218 | status = U_ILLEGAL_ARGUMENT_ERROR; | |||
2219 | return; | |||
2220 | // throw new IllegalArgumentException("Calendar.add(" + fieldName(field) + | |||
2221 | // ") not supported"); | |||
2222 | } | |||
2223 | ||||
2224 | // In order to keep the wall time invariant (for fields where this is | |||
2225 | // appropriate), check the combined DST & ZONE offset before and | |||
2226 | // after the add() operation. If it changes, then adjust the millis | |||
2227 | // to compensate. | |||
2228 | int32_t prevOffset = 0; | |||
2229 | int32_t prevWallTime = 0; | |||
2230 | if (keepWallTimeInvariant) { | |||
2231 | prevOffset = get(UCAL_DST_OFFSET, status) + get(UCAL_ZONE_OFFSET, status); | |||
2232 | prevWallTime = get(UCAL_MILLISECONDS_IN_DAY, status); | |||
2233 | } | |||
2234 | ||||
2235 | setTimeInMillis(getTimeInMillis(status) + delta, status); | |||
2236 | ||||
2237 | if (keepWallTimeInvariant) { | |||
2238 | int32_t newWallTime = get(UCAL_MILLISECONDS_IN_DAY, status); | |||
2239 | if (newWallTime != prevWallTime) { | |||
2240 | // There is at least one zone transition between the base | |||
2241 | // time and the result time. As the result, wall time has | |||
2242 | // changed. | |||
2243 | UDate t = internalGetTime(); | |||
2244 | int32_t newOffset = get(UCAL_DST_OFFSET, status) + get(UCAL_ZONE_OFFSET, status); | |||
2245 | if (newOffset != prevOffset) { | |||
2246 | // When the difference of the previous UTC offset and | |||
2247 | // the new UTC offset exceeds 1 full day, we do not want | |||
2248 | // to roll over/back the date. For now, this only happens | |||
2249 | // in Samoa (Pacific/Apia) on Dec 30, 2011. See ticket:9452. | |||
2250 | int32_t adjAmount = prevOffset - newOffset; | |||
2251 | adjAmount = adjAmount >= 0 ? adjAmount % (int32_t)kOneDay(1.0 * (86400000)) : -(-adjAmount % (int32_t)kOneDay(1.0 * (86400000))); | |||
2252 | if (adjAmount != 0) { | |||
2253 | setTimeInMillis(t + adjAmount, status); | |||
2254 | newWallTime = get(UCAL_MILLISECONDS_IN_DAY, status); | |||
2255 | } | |||
2256 | if (newWallTime != prevWallTime) { | |||
2257 | // The result wall time or adjusted wall time was shifted because | |||
2258 | // the target wall time does not exist on the result date. | |||
2259 | switch (fSkippedWallTime) { | |||
2260 | case UCAL_WALLTIME_FIRST: | |||
2261 | if (adjAmount > 0) { | |||
2262 | setTimeInMillis(t, status); | |||
2263 | } | |||
2264 | break; | |||
2265 | case UCAL_WALLTIME_LAST: | |||
2266 | if (adjAmount < 0) { | |||
2267 | setTimeInMillis(t, status); | |||
2268 | } | |||
2269 | break; | |||
2270 | case UCAL_WALLTIME_NEXT_VALID: | |||
2271 | UDate tmpT = adjAmount > 0 ? internalGetTime() : t; | |||
2272 | UDate immediatePrevTrans; | |||
2273 | UBool hasTransition = getImmediatePreviousZoneTransition(tmpT, &immediatePrevTrans, status); | |||
2274 | if (U_SUCCESS(status) && hasTransition) { | |||
2275 | setTimeInMillis(immediatePrevTrans, status); | |||
2276 | } | |||
2277 | break; | |||
2278 | } | |||
2279 | } | |||
2280 | } | |||
2281 | } | |||
2282 | } | |||
2283 | } | |||
2284 | ||||
2285 | // ------------------------------------- | |||
2286 | int32_t Calendar::fieldDifference(UDate when, EDateFields field, UErrorCode& status) { | |||
2287 | return fieldDifference(when, (UCalendarDateFields) field, status); | |||
| ||||
2288 | } | |||
2289 | ||||
2290 | int32_t Calendar::fieldDifference(UDate targetMs, UCalendarDateFields field, UErrorCode& ec) { | |||
2291 | if (U_FAILURE(ec)) return 0; | |||
2292 | int32_t min = 0; | |||
2293 | double startMs = getTimeInMillis(ec); | |||
2294 | // Always add from the start millis. This accommodates | |||
2295 | // operations like adding years from February 29, 2000 up to | |||
2296 | // February 29, 2004. If 1, 1, 1, 1 is added to the year | |||
2297 | // field, the DOM gets pinned to 28 and stays there, giving an | |||
2298 | // incorrect DOM difference of 1. We have to add 1, reset, 2, | |||
2299 | // reset, 3, reset, 4. | |||
2300 | if (startMs < targetMs) { | |||
2301 | int32_t max = 1; | |||
2302 | // Find a value that is too large | |||
2303 | while (U_SUCCESS(ec)) { | |||
2304 | setTimeInMillis(startMs, ec); | |||
2305 | add(field, max, ec); | |||
2306 | double ms = getTimeInMillis(ec); | |||
2307 | if (ms == targetMs) { | |||
2308 | return max; | |||
2309 | } else if (ms > targetMs) { | |||
2310 | break; | |||
2311 | } else if (max < INT32_MAX(2147483647)) { | |||
2312 | min = max; | |||
2313 | max <<= 1; | |||
2314 | if (max < 0) { | |||
2315 | max = INT32_MAX(2147483647); | |||
2316 | } | |||
2317 | } else { | |||
2318 | // Field difference too large to fit into int32_t | |||
2319 | #if defined (U_DEBUG_CAL) | |||
2320 | fprintf(stderrstderr, "%s:%d: ILLEGAL ARG because field %s's max too large for int32_t\n", | |||
2321 | __FILE__"../deps/icu-small/source/i18n/calendar.cpp", __LINE__2321, fldName(field)); | |||
2322 | #endif | |||
2323 | ec = U_ILLEGAL_ARGUMENT_ERROR; | |||
2324 | } | |||
2325 | } | |||
2326 | // Do a binary search | |||
2327 | while ((max - min) > 1 && U_SUCCESS(ec)) { | |||
2328 | int32_t t = min + (max - min)/2; // make sure intermediate values don't exceed INT32_MAX | |||
2329 | setTimeInMillis(startMs, ec); | |||
2330 | add(field, t, ec); | |||
2331 | double ms = getTimeInMillis(ec); | |||
2332 | if (ms == targetMs) { | |||
2333 | return t; | |||
2334 | } else if (ms > targetMs) { | |||
2335 | max = t; | |||
2336 | } else { | |||
2337 | min = t; | |||
2338 | } | |||
2339 | } | |||
2340 | } else if (startMs > targetMs) { | |||
2341 | int32_t max = -1; | |||
2342 | // Find a value that is too small | |||
2343 | while (U_SUCCESS(ec)) { | |||
2344 | setTimeInMillis(startMs, ec); | |||
2345 | add(field, max, ec); | |||
2346 | double ms = getTimeInMillis(ec); | |||
2347 | if (ms == targetMs) { | |||
2348 | return max; | |||
2349 | } else if (ms < targetMs) { | |||
2350 | break; | |||
2351 | } else { | |||
2352 | min = max; | |||
2353 | max <<= 1; | |||
| ||||
2354 | if (max == 0) { | |||
2355 | // Field difference too large to fit into int32_t | |||
2356 | #if defined (U_DEBUG_CAL) | |||
2357 | fprintf(stderrstderr, "%s:%d: ILLEGAL ARG because field %s's max too large for int32_t\n", | |||
2358 | __FILE__"../deps/icu-small/source/i18n/calendar.cpp", __LINE__2358, fldName(field)); | |||
2359 | #endif | |||
2360 | ec = U_ILLEGAL_ARGUMENT_ERROR; | |||
2361 | } | |||
2362 | } | |||
2363 | } | |||
2364 | // Do a binary search | |||
2365 | while ((min - max) > 1 && U_SUCCESS(ec)) { | |||
2366 | int32_t t = min + (max - min)/2; // make sure intermediate values don't exceed INT32_MAX | |||
2367 | setTimeInMillis(startMs, ec); | |||
2368 | add(field, t, ec); | |||
2369 | double ms = getTimeInMillis(ec); | |||
2370 | if (ms == targetMs) { | |||
2371 | return t; | |||
2372 | } else if (ms < targetMs) { | |||
2373 | max = t; | |||
2374 | } else { | |||
2375 | min = t; | |||
2376 | } | |||
2377 | } | |||
2378 | } | |||
2379 | // Set calendar to end point | |||
2380 | setTimeInMillis(startMs, ec); | |||
2381 | add(field, min, ec); | |||
2382 | ||||
2383 | /* Test for buffer overflows */ | |||
2384 | if(U_FAILURE(ec)) { | |||
2385 | return 0; | |||
2386 | } | |||
2387 | return min; | |||
2388 | } | |||
2389 | ||||
2390 | // ------------------------------------- | |||
2391 | ||||
2392 | void | |||
2393 | Calendar::adoptTimeZone(TimeZone* zone) | |||
2394 | { | |||
2395 | // Do nothing if passed-in zone is NULL | |||
2396 | if (zone == NULL__null) return; | |||
2397 | ||||
2398 | // fZone should always be non-null | |||
2399 | delete fZone; | |||
2400 | fZone = zone; | |||
2401 | ||||
2402 | // if the zone changes, we need to recompute the time fields | |||
2403 | fAreFieldsSet = FALSE0; | |||
2404 | } | |||
2405 | ||||
2406 | // ------------------------------------- | |||
2407 | void | |||
2408 | Calendar::setTimeZone(const TimeZone& zone) | |||
2409 | { | |||
2410 | adoptTimeZone(zone.clone()); | |||
2411 | } | |||
2412 | ||||
2413 | // ------------------------------------- | |||
2414 | ||||
2415 | const TimeZone& | |||
2416 | Calendar::getTimeZone() const | |||
2417 | { | |||
2418 | U_ASSERT(fZone != NULL)(void)0; | |||
2419 | return *fZone; | |||
2420 | } | |||
2421 | ||||
2422 | // ------------------------------------- | |||
2423 | ||||
2424 | TimeZone* | |||
2425 | Calendar::orphanTimeZone() | |||
2426 | { | |||
2427 | // we let go of the time zone; the new time zone is the system default time zone | |||
2428 | TimeZone *defaultZone = TimeZone::createDefault(); | |||
2429 | if (defaultZone == NULL__null) { | |||
2430 | // No error handling available. Must keep fZone non-NULL, there are many unchecked uses. | |||
2431 | return NULL__null; | |||
2432 | } | |||
2433 | TimeZone *z = fZone; | |||
2434 | fZone = defaultZone; | |||
2435 | return z; | |||
2436 | } | |||
2437 | ||||
2438 | // ------------------------------------- | |||
2439 | ||||
2440 | void | |||
2441 | Calendar::setLenient(UBool lenient) | |||
2442 | { | |||
2443 | fLenient = lenient; | |||
2444 | } | |||
2445 | ||||
2446 | // ------------------------------------- | |||
2447 | ||||
2448 | UBool | |||
2449 | Calendar::isLenient() const | |||
2450 | { | |||
2451 | return fLenient; | |||
2452 | } | |||
2453 | ||||
2454 | // ------------------------------------- | |||
2455 | ||||
2456 | void | |||
2457 | Calendar::setRepeatedWallTimeOption(UCalendarWallTimeOption option) | |||
2458 | { | |||
2459 | if (option == UCAL_WALLTIME_LAST || option == UCAL_WALLTIME_FIRST) { | |||
2460 | fRepeatedWallTime = option; | |||
2461 | } | |||
2462 | } | |||
2463 | ||||
2464 | // ------------------------------------- | |||
2465 | ||||
2466 | UCalendarWallTimeOption | |||
2467 | Calendar::getRepeatedWallTimeOption(void) const | |||
2468 | { | |||
2469 | return fRepeatedWallTime; | |||
2470 | } | |||
2471 | ||||
2472 | // ------------------------------------- | |||
2473 | ||||
2474 | void | |||
2475 | Calendar::setSkippedWallTimeOption(UCalendarWallTimeOption option) | |||
2476 | { | |||
2477 | fSkippedWallTime = option; | |||
2478 | } | |||
2479 | ||||
2480 | // ------------------------------------- | |||
2481 | ||||
2482 | UCalendarWallTimeOption | |||
2483 | Calendar::getSkippedWallTimeOption(void) const | |||
2484 | { | |||
2485 | return fSkippedWallTime; | |||
2486 | } | |||
2487 | ||||
2488 | // ------------------------------------- | |||
2489 | ||||
2490 | void | |||
2491 | Calendar::setFirstDayOfWeek(UCalendarDaysOfWeek value) | |||
2492 | { | |||
2493 | if (fFirstDayOfWeek != value && | |||
2494 | value >= UCAL_SUNDAY && value <= UCAL_SATURDAY) { | |||
2495 | fFirstDayOfWeek = value; | |||
2496 | fAreFieldsSet = FALSE0; | |||
2497 | } | |||
2498 | } | |||
2499 | ||||
2500 | // ------------------------------------- | |||
2501 | ||||
2502 | Calendar::EDaysOfWeek | |||
2503 | Calendar::getFirstDayOfWeek() const | |||
2504 | { | |||
2505 | return (Calendar::EDaysOfWeek)fFirstDayOfWeek; | |||
2506 | } | |||
2507 | ||||
2508 | UCalendarDaysOfWeek | |||
2509 | Calendar::getFirstDayOfWeek(UErrorCode & /*status*/) const | |||
2510 | { | |||
2511 | return fFirstDayOfWeek; | |||
2512 | } | |||
2513 | // ------------------------------------- | |||
2514 | ||||
2515 | void | |||
2516 | Calendar::setMinimalDaysInFirstWeek(uint8_t value) | |||
2517 | { | |||
2518 | // Values less than 1 have the same effect as 1; values greater | |||
2519 | // than 7 have the same effect as 7. However, we normalize values | |||
2520 | // so operator== and so forth work. | |||
2521 | if (value < 1) { | |||
2522 | value = 1; | |||
2523 | } else if (value > 7) { | |||
2524 | value = 7; | |||
2525 | } | |||
2526 | if (fMinimalDaysInFirstWeek != value) { | |||
2527 | fMinimalDaysInFirstWeek = value; | |||
2528 | fAreFieldsSet = FALSE0; | |||
2529 | } | |||
2530 | } | |||
2531 | ||||
2532 | // ------------------------------------- | |||
2533 | ||||
2534 | uint8_t | |||
2535 | Calendar::getMinimalDaysInFirstWeek() const | |||
2536 | { | |||
2537 | return fMinimalDaysInFirstWeek; | |||
2538 | } | |||
2539 | ||||
2540 | // ------------------------------------- | |||
2541 | // weekend functions, just dummy implementations for now (for API freeze) | |||
2542 | ||||
2543 | UCalendarWeekdayType | |||
2544 | Calendar::getDayOfWeekType(UCalendarDaysOfWeek dayOfWeek, UErrorCode &status) const | |||
2545 | { | |||
2546 | if (U_FAILURE(status)) { | |||
2547 | return UCAL_WEEKDAY; | |||
2548 | } | |||
2549 | if (dayOfWeek < UCAL_SUNDAY || dayOfWeek > UCAL_SATURDAY) { | |||
2550 | status = U_ILLEGAL_ARGUMENT_ERROR; | |||
2551 | return UCAL_WEEKDAY; | |||
2552 | } | |||
2553 | if (fWeekendOnset == fWeekendCease) { | |||
2554 | if (dayOfWeek != fWeekendOnset) | |||
2555 | return UCAL_WEEKDAY; | |||
2556 | return (fWeekendOnsetMillis == 0) ? UCAL_WEEKEND : UCAL_WEEKEND_ONSET; | |||
2557 | } | |||
2558 | if (fWeekendOnset < fWeekendCease) { | |||
2559 | if (dayOfWeek < fWeekendOnset || dayOfWeek > fWeekendCease) { | |||
2560 | return UCAL_WEEKDAY; | |||
2561 | } | |||
2562 | } else { | |||
2563 | if (dayOfWeek > fWeekendCease && dayOfWeek < fWeekendOnset) { | |||
2564 | return UCAL_WEEKDAY; | |||
2565 | } | |||
2566 | } | |||
2567 | if (dayOfWeek == fWeekendOnset) { | |||
2568 | return (fWeekendOnsetMillis == 0) ? UCAL_WEEKEND : UCAL_WEEKEND_ONSET; | |||
2569 | } | |||
2570 | if (dayOfWeek == fWeekendCease) { | |||
2571 | return (fWeekendCeaseMillis >= 86400000) ? UCAL_WEEKEND : UCAL_WEEKEND_CEASE; | |||
2572 | } | |||
2573 | return UCAL_WEEKEND; | |||
2574 | } | |||
2575 | ||||
2576 | int32_t | |||
2577 | Calendar::getWeekendTransition(UCalendarDaysOfWeek dayOfWeek, UErrorCode &status) const | |||
2578 | { | |||
2579 | if (U_FAILURE(status)) { | |||
2580 | return 0; | |||
2581 | } | |||
2582 | if (dayOfWeek == fWeekendOnset) { | |||
2583 | return fWeekendOnsetMillis; | |||
2584 | } else if (dayOfWeek == fWeekendCease) { | |||
2585 | return fWeekendCeaseMillis; | |||
2586 | } | |||
2587 | status = U_ILLEGAL_ARGUMENT_ERROR; | |||
2588 | return 0; | |||
2589 | } | |||
2590 | ||||
2591 | UBool | |||
2592 | Calendar::isWeekend(UDate date, UErrorCode &status) const | |||
2593 | { | |||
2594 | if (U_FAILURE(status)) { | |||
2595 | return FALSE0; | |||
2596 | } | |||
2597 | // clone the calendar so we don't mess with the real one. | |||
2598 | Calendar *work = this->clone(); | |||
2599 | if (work == NULL__null) { | |||
2600 | status = U_MEMORY_ALLOCATION_ERROR; | |||
2601 | return FALSE0; | |||
2602 | } | |||
2603 | UBool result = FALSE0; | |||
2604 | work->setTime(date, status); | |||
2605 | if (U_SUCCESS(status)) { | |||
2606 | result = work->isWeekend(); | |||
2607 | } | |||
2608 | delete work; | |||
2609 | return result; | |||
2610 | } | |||
2611 | ||||
2612 | UBool | |||
2613 | Calendar::isWeekend(void) const | |||
2614 | { | |||
2615 | UErrorCode status = U_ZERO_ERROR; | |||
2616 | UCalendarDaysOfWeek dayOfWeek = (UCalendarDaysOfWeek)get(UCAL_DAY_OF_WEEK, status); | |||
2617 | UCalendarWeekdayType dayType = getDayOfWeekType(dayOfWeek, status); | |||
2618 | if (U_SUCCESS(status)) { | |||
2619 | switch (dayType) { | |||
2620 | case UCAL_WEEKDAY: | |||
2621 | return FALSE0; | |||
2622 | case UCAL_WEEKEND: | |||
2623 | return TRUE1; | |||
2624 | case UCAL_WEEKEND_ONSET: | |||
2625 | case UCAL_WEEKEND_CEASE: | |||
2626 | // Use internalGet() because the above call to get() populated all fields. | |||
2627 | { | |||
2628 | int32_t millisInDay = internalGet(UCAL_MILLISECONDS_IN_DAY); | |||
2629 | int32_t transitionMillis = getWeekendTransition(dayOfWeek, status); | |||
2630 | if (U_SUCCESS(status)) { | |||
2631 | return (dayType == UCAL_WEEKEND_ONSET)? | |||
2632 | (millisInDay >= transitionMillis): | |||
2633 | (millisInDay < transitionMillis); | |||
2634 | } | |||
2635 | // else fall through, return FALSE | |||
2636 | U_FALLTHROUGH[[clang::fallthrough]]; | |||
2637 | } | |||
2638 | default: | |||
2639 | break; | |||
2640 | } | |||
2641 | } | |||
2642 | return FALSE0; | |||
2643 | } | |||
2644 | ||||
2645 | // ------------------------------------- limits | |||
2646 | ||||
2647 | int32_t | |||
2648 | Calendar::getMinimum(EDateFields field) const { | |||
2649 | return getLimit((UCalendarDateFields) field,UCAL_LIMIT_MINIMUM); | |||
2650 | } | |||
2651 | ||||
2652 | int32_t | |||
2653 | Calendar::getMinimum(UCalendarDateFields field) const | |||
2654 | { | |||
2655 | return getLimit(field,UCAL_LIMIT_MINIMUM); | |||
2656 | } | |||
2657 | ||||
2658 | // ------------------------------------- | |||
2659 | int32_t | |||
2660 | Calendar::getMaximum(EDateFields field) const | |||
2661 | { | |||
2662 | return getLimit((UCalendarDateFields) field,UCAL_LIMIT_MAXIMUM); | |||
2663 | } | |||
2664 | ||||
2665 | int32_t | |||
2666 | Calendar::getMaximum(UCalendarDateFields field) const | |||
2667 | { | |||
2668 | return getLimit(field,UCAL_LIMIT_MAXIMUM); | |||
2669 | } | |||
2670 | ||||
2671 | // ------------------------------------- | |||
2672 | int32_t | |||
2673 | Calendar::getGreatestMinimum(EDateFields field) const | |||
2674 | { | |||
2675 | return getLimit((UCalendarDateFields)field,UCAL_LIMIT_GREATEST_MINIMUM); | |||
2676 | } | |||
2677 | ||||
2678 | int32_t | |||
2679 | Calendar::getGreatestMinimum(UCalendarDateFields field) const | |||
2680 | { | |||
2681 | return getLimit(field,UCAL_LIMIT_GREATEST_MINIMUM); | |||
2682 | } | |||
2683 | ||||
2684 | // ------------------------------------- | |||
2685 | int32_t | |||
2686 | Calendar::getLeastMaximum(EDateFields field) const | |||
2687 | { | |||
2688 | return getLimit((UCalendarDateFields) field,UCAL_LIMIT_LEAST_MAXIMUM); | |||
2689 | } | |||
2690 | ||||
2691 | int32_t | |||
2692 | Calendar::getLeastMaximum(UCalendarDateFields field) const | |||
2693 | { | |||
2694 | return getLimit( field,UCAL_LIMIT_LEAST_MAXIMUM); | |||
2695 | } | |||
2696 | ||||
2697 | // ------------------------------------- | |||
2698 | int32_t | |||
2699 | Calendar::getActualMinimum(EDateFields field, UErrorCode& status) const | |||
2700 | { | |||
2701 | return getActualMinimum((UCalendarDateFields) field, status); | |||
2702 | } | |||
2703 | ||||
2704 | int32_t Calendar::getLimit(UCalendarDateFields field, ELimitType limitType) const { | |||
2705 | switch (field) { | |||
2706 | case UCAL_DAY_OF_WEEK: | |||
2707 | case UCAL_AM_PM: | |||
2708 | case UCAL_HOUR: | |||
2709 | case UCAL_HOUR_OF_DAY: | |||
2710 | case UCAL_MINUTE: | |||
2711 | case UCAL_SECOND: | |||
2712 | case UCAL_MILLISECOND: | |||
2713 | case UCAL_ZONE_OFFSET: | |||
2714 | case UCAL_DST_OFFSET: | |||
2715 | case UCAL_DOW_LOCAL: | |||
2716 | case UCAL_JULIAN_DAY: | |||
2717 | case UCAL_MILLISECONDS_IN_DAY: | |||
2718 | case UCAL_IS_LEAP_MONTH: | |||
2719 | return kCalendarLimits[field][limitType]; | |||
2720 | ||||
2721 | case UCAL_WEEK_OF_MONTH: | |||
2722 | { | |||
2723 | int32_t limit; | |||
2724 | if (limitType == UCAL_LIMIT_MINIMUM) { | |||
2725 | limit = getMinimalDaysInFirstWeek() == 1 ? 1 : 0; | |||
2726 | } else if (limitType == UCAL_LIMIT_GREATEST_MINIMUM) { | |||
2727 | limit = 1; | |||
2728 | } else { | |||
2729 | int32_t minDaysInFirst = getMinimalDaysInFirstWeek(); | |||
2730 | int32_t daysInMonth = handleGetLimit(UCAL_DAY_OF_MONTH, limitType); | |||
2731 | if (limitType == UCAL_LIMIT_LEAST_MAXIMUM) { | |||
2732 | limit = (daysInMonth + (7 - minDaysInFirst)) / 7; | |||
2733 | } else { // limitType == UCAL_LIMIT_MAXIMUM | |||
2734 | limit = (daysInMonth + 6 + (7 - minDaysInFirst)) / 7; | |||
2735 | } | |||
2736 | } | |||
2737 | return limit; | |||
2738 | } | |||
2739 | default: | |||
2740 | return handleGetLimit(field, limitType); | |||
2741 | } | |||
2742 | } | |||
2743 | ||||
2744 | ||||
2745 | int32_t | |||
2746 | Calendar::getActualMinimum(UCalendarDateFields field, UErrorCode& status) const | |||
2747 | { | |||
2748 | int32_t fieldValue = getGreatestMinimum(field); | |||
2749 | int32_t endValue = getMinimum(field); | |||
2750 | ||||
2751 | // if we know that the minimum value is always the same, just return it | |||
2752 | if (fieldValue == endValue) { | |||
2753 | return fieldValue; | |||
2754 | } | |||
2755 | ||||
2756 | // clone the calendar so we don't mess with the real one, and set it to | |||
2757 | // accept anything for the field values | |||
2758 | Calendar *work = this->clone(); | |||
2759 | if (work == NULL__null) { | |||
2760 | status = U_MEMORY_ALLOCATION_ERROR; | |||
2761 | return 0; | |||
2762 | } | |||
2763 | work->setLenient(TRUE1); | |||
2764 | ||||
2765 | // now try each value from getLeastMaximum() to getMaximum() one by one until | |||
2766 | // we get a value that normalizes to another value. The last value that | |||
2767 | // normalizes to itself is the actual minimum for the current date | |||
2768 | int32_t result = fieldValue; | |||
2769 | ||||
2770 | do { | |||
2771 | work->set(field, fieldValue); | |||
2772 | if (work->get(field, status) != fieldValue) { | |||
2773 | break; | |||
2774 | } | |||
2775 | else { | |||
2776 | result = fieldValue; | |||
2777 | fieldValue--; | |||
2778 | } | |||
2779 | } while (fieldValue >= endValue); | |||
2780 | ||||
2781 | delete work; | |||
2782 | ||||
2783 | /* Test for buffer overflows */ | |||
2784 | if(U_FAILURE(status)) { | |||
2785 | return 0; | |||
2786 | } | |||
2787 | return result; | |||
2788 | } | |||
2789 | ||||
2790 | // ------------------------------------- | |||
2791 | ||||
2792 | ||||
2793 | ||||
2794 | /** | |||
2795 | * Ensure that each field is within its valid range by calling {@link | |||
2796 | * #validateField(int)} on each field that has been set. This method | |||
2797 | * should only be called if this calendar is not lenient. | |||
2798 | * @see #isLenient | |||
2799 | * @see #validateField(int) | |||
2800 | */ | |||
2801 | void Calendar::validateFields(UErrorCode &status) { | |||
2802 | for (int32_t field = 0; U_SUCCESS(status) && (field < UCAL_FIELD_COUNT); field++) { | |||
2803 | if (fStamp[field] >= kMinimumUserStamp) { | |||
2804 | validateField((UCalendarDateFields)field, status); | |||
2805 | } | |||
2806 | } | |||
2807 | } | |||
2808 | ||||
2809 | /** | |||
2810 | * Validate a single field of this calendar. Subclasses should | |||
2811 | * override this method to validate any calendar-specific fields. | |||
2812 | * Generic fields can be handled by | |||
2813 | * <code>Calendar.validateField()</code>. | |||
2814 | * @see #validateField(int, int, int) | |||
2815 | */ | |||
2816 | void Calendar::validateField(UCalendarDateFields field, UErrorCode &status) { | |||
2817 | int32_t y; | |||
2818 | switch (field) { | |||
2819 | case UCAL_DAY_OF_MONTH: | |||
2820 | y = handleGetExtendedYear(); | |||
2821 | validateField(field, 1, handleGetMonthLength(y, internalGet(UCAL_MONTH)), status); | |||
2822 | break; | |||
2823 | case UCAL_DAY_OF_YEAR: | |||
2824 | y = handleGetExtendedYear(); | |||
2825 | validateField(field, 1, handleGetYearLength(y), status); | |||
2826 | break; | |||
2827 | case UCAL_DAY_OF_WEEK_IN_MONTH: | |||
2828 | if (internalGet(field) == 0) { | |||
2829 | #if defined (U_DEBUG_CAL) | |||
2830 | fprintf(stderrstderr, "%s:%d: ILLEGAL ARG because DOW in month cannot be 0\n", | |||
2831 | __FILE__"../deps/icu-small/source/i18n/calendar.cpp", __LINE__2831); | |||
2832 | #endif | |||
2833 | status = U_ILLEGAL_ARGUMENT_ERROR; // "DAY_OF_WEEK_IN_MONTH cannot be zero" | |||
2834 | return; | |||
2835 | } | |||
2836 | validateField(field, getMinimum(field), getMaximum(field), status); | |||
2837 | break; | |||
2838 | default: | |||
2839 | validateField(field, getMinimum(field), getMaximum(field), status); | |||
2840 | break; | |||
2841 | } | |||
2842 | } | |||
2843 | ||||
2844 | /** | |||
2845 | * Validate a single field of this calendar given its minimum and | |||
2846 | * maximum allowed value. If the field is out of range, throw a | |||
2847 | * descriptive <code>IllegalArgumentException</code>. Subclasses may | |||
2848 | * use this method in their implementation of {@link | |||
2849 | * #validateField(int)}. | |||
2850 | */ | |||
2851 | void Calendar::validateField(UCalendarDateFields field, int32_t min, int32_t max, UErrorCode& status) | |||
2852 | { | |||
2853 | int32_t value = fFields[field]; | |||
2854 | if (value < min || value > max) { | |||
2855 | #if defined (U_DEBUG_CAL) | |||
2856 | fprintf(stderrstderr, "%s:%d: ILLEGAL ARG because of field %s out of range %d..%d at %d\n", | |||
2857 | __FILE__"../deps/icu-small/source/i18n/calendar.cpp", __LINE__2857,fldName(field),min,max,value); | |||
2858 | #endif | |||
2859 | status = U_ILLEGAL_ARGUMENT_ERROR; | |||
2860 | return; | |||
2861 | } | |||
2862 | } | |||
2863 | ||||
2864 | // ------------------------- | |||
2865 | ||||
2866 | const UFieldResolutionTable* Calendar::getFieldResolutionTable() const { | |||
2867 | return kDatePrecedence; | |||
2868 | } | |||
2869 | ||||
2870 | ||||
2871 | UCalendarDateFields Calendar::newerField(UCalendarDateFields defaultField, UCalendarDateFields alternateField) const | |||
2872 | { | |||
2873 | if (fStamp[alternateField] > fStamp[defaultField]) { | |||
2874 | return alternateField; | |||
2875 | } | |||
2876 | return defaultField; | |||
2877 | } | |||
2878 | ||||
2879 | UCalendarDateFields Calendar::resolveFields(const UFieldResolutionTable* precedenceTable) { | |||
2880 | int32_t bestField = UCAL_FIELD_COUNT; | |||
2881 | int32_t tempBestField; | |||
2882 | for (int32_t g=0; precedenceTable[g][0][0] != -1 && (bestField == UCAL_FIELD_COUNT); ++g) { | |||
2883 | int32_t bestStamp = kUnset; | |||
2884 | for (int32_t l=0; precedenceTable[g][l][0] != -1; ++l) { | |||
2885 | int32_t lineStamp = kUnset; | |||
2886 | // Skip over first entry if it is negative | |||
2887 | for (int32_t i=((precedenceTable[g][l][0]>=kResolveRemap)?1:0); precedenceTable[g][l][i]!=-1; ++i) { | |||
2888 | U_ASSERT(precedenceTable[g][l][i] < UCAL_FIELD_COUNT)(void)0; | |||
2889 | int32_t s = fStamp[precedenceTable[g][l][i]]; | |||
2890 | // If any field is unset then don't use this line | |||
2891 | if (s == kUnset) { | |||
2892 | goto linesInGroup; | |||
2893 | } else if(s > lineStamp) { | |||
2894 | lineStamp = s; | |||
2895 | } | |||
2896 | } | |||
2897 | // Record new maximum stamp & field no. | |||
2898 | if (lineStamp > bestStamp) { | |||
2899 | tempBestField = precedenceTable[g][l][0]; // First field refers to entire line | |||
2900 | if (tempBestField >= kResolveRemap) { | |||
2901 | tempBestField &= (kResolveRemap-1); | |||
2902 | // This check is needed to resolve some issues with UCAL_YEAR precedence mapping | |||
2903 | if (tempBestField != UCAL_DATE || (fStamp[UCAL_WEEK_OF_MONTH] < fStamp[tempBestField])) { | |||
2904 | bestField = tempBestField; | |||
2905 | } | |||
2906 | } else { | |||
2907 | bestField = tempBestField; | |||
2908 | } | |||
2909 | ||||
2910 | if (bestField == tempBestField) { | |||
2911 | bestStamp = lineStamp; | |||
2912 | } | |||
2913 | } | |||
2914 | linesInGroup: | |||
2915 | ; | |||
2916 | } | |||
2917 | } | |||
2918 | return (UCalendarDateFields)bestField; | |||
2919 | } | |||
2920 | ||||
2921 | const UFieldResolutionTable Calendar::kDatePrecedence[] = | |||
2922 | { | |||
2923 | { | |||
2924 | { UCAL_DAY_OF_MONTH, kResolveSTOP }, | |||
2925 | { UCAL_WEEK_OF_YEAR, UCAL_DAY_OF_WEEK, kResolveSTOP }, | |||
2926 | { UCAL_WEEK_OF_MONTH, UCAL_DAY_OF_WEEK, kResolveSTOP }, | |||
2927 | { UCAL_DAY_OF_WEEK_IN_MONTH, UCAL_DAY_OF_WEEK, kResolveSTOP }, | |||
2928 | { UCAL_WEEK_OF_YEAR, UCAL_DOW_LOCAL, kResolveSTOP }, | |||
2929 | { UCAL_WEEK_OF_MONTH, UCAL_DOW_LOCAL, kResolveSTOP }, | |||
2930 | { UCAL_DAY_OF_WEEK_IN_MONTH, UCAL_DOW_LOCAL, kResolveSTOP }, | |||
2931 | { UCAL_DAY_OF_YEAR, kResolveSTOP }, | |||
2932 | { kResolveRemap | UCAL_DAY_OF_MONTH, UCAL_YEAR, kResolveSTOP }, // if YEAR is set over YEAR_WOY use DAY_OF_MONTH | |||
2933 | { kResolveRemap | UCAL_WEEK_OF_YEAR, UCAL_YEAR_WOY, kResolveSTOP }, // if YEAR_WOY is set, calc based on WEEK_OF_YEAR | |||
2934 | { kResolveSTOP } | |||
2935 | }, | |||
2936 | { | |||
2937 | { UCAL_WEEK_OF_YEAR, kResolveSTOP }, | |||
2938 | { UCAL_WEEK_OF_MONTH, kResolveSTOP }, | |||
2939 | { UCAL_DAY_OF_WEEK_IN_MONTH, kResolveSTOP }, | |||
2940 | { kResolveRemap | UCAL_DAY_OF_WEEK_IN_MONTH, UCAL_DAY_OF_WEEK, kResolveSTOP }, | |||
2941 | { kResolveRemap | UCAL_DAY_OF_WEEK_IN_MONTH, UCAL_DOW_LOCAL, kResolveSTOP }, | |||
2942 | { kResolveSTOP } | |||
2943 | }, | |||
2944 | {{kResolveSTOP}} | |||
2945 | }; | |||
2946 | ||||
2947 | ||||
2948 | const UFieldResolutionTable Calendar::kDOWPrecedence[] = | |||
2949 | { | |||
2950 | { | |||
2951 | { UCAL_DAY_OF_WEEK,kResolveSTOP, kResolveSTOP }, | |||
2952 | { UCAL_DOW_LOCAL,kResolveSTOP, kResolveSTOP }, | |||
2953 | {kResolveSTOP} | |||
2954 | }, | |||
2955 | {{kResolveSTOP}} | |||
2956 | }; | |||
2957 | ||||
2958 | // precedence for calculating a year | |||
2959 | const UFieldResolutionTable Calendar::kYearPrecedence[] = | |||
2960 | { | |||
2961 | { | |||
2962 | { UCAL_YEAR, kResolveSTOP }, | |||
2963 | { UCAL_EXTENDED_YEAR, kResolveSTOP }, | |||
2964 | { UCAL_YEAR_WOY, UCAL_WEEK_OF_YEAR, kResolveSTOP }, // YEAR_WOY is useless without WEEK_OF_YEAR | |||
2965 | { kResolveSTOP } | |||
2966 | }, | |||
2967 | {{kResolveSTOP}} | |||
2968 | }; | |||
2969 | ||||
2970 | ||||
2971 | // ------------------------- | |||
2972 | ||||
2973 | ||||
2974 | void Calendar::computeTime(UErrorCode& status) { | |||
2975 | if (!isLenient()) { | |||
2976 | validateFields(status); | |||
2977 | if (U_FAILURE(status)) { | |||
2978 | return; | |||
2979 | } | |||
2980 | } | |||
2981 | ||||
2982 | // Compute the Julian day | |||
2983 | int32_t julianDay = computeJulianDay(); | |||
2984 | ||||
2985 | double millis = Grego::julianDayToMillis(julianDay); | |||
2986 | ||||
2987 | #if defined (U_DEBUG_CAL) | |||
2988 | // int32_t julianInsanityCheck = (int32_t)ClockMath::floorDivide(millis, kOneDay); | |||
2989 | // julianInsanityCheck += kEpochStartAsJulianDay; | |||
2990 | // if(1 || julianInsanityCheck != julianDay) { | |||
2991 | // fprintf(stderr, "%s:%d- D'oh- computed jules %d, to mills (%s)%.lf, recomputed %d\n", | |||
2992 | // __FILE__, __LINE__, julianDay, millis<0.0?"NEG":"", millis, julianInsanityCheck); | |||
2993 | // } | |||
2994 | #endif | |||
2995 | ||||
2996 | double millisInDay; | |||
2997 | ||||
2998 | // We only use MILLISECONDS_IN_DAY if it has been set by the user. | |||
2999 | // This makes it possible for the caller to set the calendar to a | |||
3000 | // time and call clear(MONTH) to reset the MONTH to January. This | |||
3001 | // is legacy behavior. Without this, clear(MONTH) has no effect, | |||
3002 | // since the internally set JULIAN_DAY is used. | |||
3003 | if (fStamp[UCAL_MILLISECONDS_IN_DAY] >= ((int32_t)kMinimumUserStamp) && | |||
3004 | newestStamp(UCAL_AM_PM, UCAL_MILLISECOND, kUnset) <= fStamp[UCAL_MILLISECONDS_IN_DAY]) { | |||
3005 | millisInDay = internalGet(UCAL_MILLISECONDS_IN_DAY); | |||
3006 | } else { | |||
3007 | millisInDay = computeMillisInDay(); | |||
3008 | } | |||
3009 | ||||
3010 | UDate t = 0; | |||
3011 | if (fStamp[UCAL_ZONE_OFFSET] >= ((int32_t)kMinimumUserStamp) || fStamp[UCAL_DST_OFFSET] >= ((int32_t)kMinimumUserStamp)) { | |||
3012 | t = millis + millisInDay - (internalGet(UCAL_ZONE_OFFSET) + internalGet(UCAL_DST_OFFSET)); | |||
3013 | } else { | |||
3014 | // Compute the time zone offset and DST offset. There are two potential | |||
3015 | // ambiguities here. We'll assume a 2:00 am (wall time) switchover time | |||
3016 | // for discussion purposes here. | |||
3017 | // | |||
3018 | // 1. The positive offset change such as transition into DST. | |||
3019 | // Here, a designated time of 2:00 am - 2:59 am does not actually exist. | |||
3020 | // For this case, skippedWallTime option specifies the behavior. | |||
3021 | // For example, 2:30 am is interpreted as; | |||
3022 | // - WALLTIME_LAST(default): 3:30 am (DST) (interpreting 2:30 am as 31 minutes after 1:59 am (STD)) | |||
3023 | // - WALLTIME_FIRST: 1:30 am (STD) (interpreting 2:30 am as 30 minutes before 3:00 am (DST)) | |||
3024 | // - WALLTIME_NEXT_VALID: 3:00 am (DST) (next valid time after 2:30 am on a wall clock) | |||
3025 | // 2. The negative offset change such as transition out of DST. | |||
3026 | // Here, a designated time of 1:00 am - 1:59 am can be in standard or DST. Both are valid | |||
3027 | // representations (the rep jumps from 1:59:59 DST to 1:00:00 Std). | |||
3028 | // For this case, repeatedWallTime option specifies the behavior. | |||
3029 | // For example, 1:30 am is interpreted as; | |||
3030 | // - WALLTIME_LAST(default): 1:30 am (STD) - latter occurrence | |||
3031 | // - WALLTIME_FIRST: 1:30 am (DST) - former occurrence | |||
3032 | // | |||
3033 | // In addition to above, when calendar is strict (not default), wall time falls into | |||
3034 | // the skipped time range will be processed as an error case. | |||
3035 | // | |||
3036 | // These special cases are mostly handled in #computeZoneOffset(long), except WALLTIME_NEXT_VALID | |||
3037 | // at positive offset change. The protected method computeZoneOffset(long) is exposed to Calendar | |||
3038 | // subclass implementations and marked as @stable. Strictly speaking, WALLTIME_NEXT_VALID | |||
3039 | // should be also handled in the same place, but we cannot change the code flow without deprecating | |||
3040 | // the protected method. | |||
3041 | // | |||
3042 | // We use the TimeZone object, unless the user has explicitly set the ZONE_OFFSET | |||
3043 | // or DST_OFFSET fields; then we use those fields. | |||
3044 | ||||
3045 | if (!isLenient() || fSkippedWallTime == UCAL_WALLTIME_NEXT_VALID) { | |||
3046 | // When strict, invalidate a wall time falls into a skipped wall time range. | |||
3047 | // When lenient and skipped wall time option is WALLTIME_NEXT_VALID, | |||
3048 | // the result time will be adjusted to the next valid time (on wall clock). | |||
3049 | int32_t zoneOffset = computeZoneOffset(millis, millisInDay, status); | |||
3050 | UDate tmpTime = millis + millisInDay - zoneOffset; | |||
3051 | ||||
3052 | int32_t raw, dst; | |||
3053 | fZone->getOffset(tmpTime, FALSE0, raw, dst, status); | |||
3054 | ||||
3055 | if (U_SUCCESS(status)) { | |||
3056 | // zoneOffset != (raw + dst) only when the given wall time fall into | |||
3057 | // a skipped wall time range caused by positive zone offset transition. | |||
3058 | if (zoneOffset != (raw + dst)) { | |||
3059 | if (!isLenient()) { | |||
3060 | status = U_ILLEGAL_ARGUMENT_ERROR; | |||
3061 | } else { | |||
3062 | U_ASSERT(fSkippedWallTime == UCAL_WALLTIME_NEXT_VALID)(void)0; | |||
3063 | // Adjust time to the next valid wall clock time. | |||
3064 | // At this point, tmpTime is on or after the zone offset transition causing | |||
3065 | // the skipped time range. | |||
3066 | UDate immediatePrevTransition; | |||
3067 | UBool hasTransition = getImmediatePreviousZoneTransition(tmpTime, &immediatePrevTransition, status); | |||
3068 | if (U_SUCCESS(status) && hasTransition) { | |||
3069 | t = immediatePrevTransition; | |||
3070 | } | |||
3071 | } | |||
3072 | } else { | |||
3073 | t = tmpTime; | |||
3074 | } | |||
3075 | } | |||
3076 | } else { | |||
3077 | t = millis + millisInDay - computeZoneOffset(millis, millisInDay, status); | |||
3078 | } | |||
3079 | } | |||
3080 | if (U_SUCCESS(status)) { | |||
3081 | internalSetTime(t); | |||
3082 | } | |||
3083 | } | |||
3084 | ||||
3085 | /** | |||
3086 | * Find the previous zone transition near the given time. | |||
3087 | */ | |||
3088 | UBool Calendar::getImmediatePreviousZoneTransition(UDate base, UDate *transitionTime, UErrorCode& status) const { | |||
3089 | BasicTimeZone *btz = getBasicTimeZone(); | |||
3090 | if (btz) { | |||
3091 | TimeZoneTransition trans; | |||
3092 | UBool hasTransition = btz->getPreviousTransition(base, TRUE1, trans); | |||
3093 | if (hasTransition) { | |||
3094 | *transitionTime = trans.getTime(); | |||
3095 | return TRUE1; | |||
3096 | } else { | |||
3097 | // Could not find any transitions. | |||
3098 | // Note: This should never happen. | |||
3099 | status = U_INTERNAL_PROGRAM_ERROR; | |||
3100 | } | |||
3101 | } else { | |||
3102 | // If not BasicTimeZone, return unsupported error for now. | |||
3103 | // TODO: We may support non-BasicTimeZone in future. | |||
3104 | status = U_UNSUPPORTED_ERROR; | |||
3105 | } | |||
3106 | return FALSE0; | |||
3107 | } | |||
3108 | ||||
3109 | /** | |||
3110 | * Compute the milliseconds in the day from the fields. This is a | |||
3111 | * value from 0 to 23:59:59.999 inclusive, unless fields are out of | |||
3112 | * range, in which case it can be an arbitrary value. This value | |||
3113 | * reflects local zone wall time. | |||
3114 | * @stable ICU 2.0 | |||
3115 | */ | |||
3116 | double Calendar::computeMillisInDay() { | |||
3117 | // Do the time portion of the conversion. | |||
3118 | ||||
3119 | double millisInDay = 0; | |||
3120 | ||||
3121 | // Find the best set of fields specifying the time of day. There | |||
3122 | // are only two possibilities here; the HOUR_OF_DAY or the | |||
3123 | // AM_PM and the HOUR. | |||
3124 | int32_t hourOfDayStamp = fStamp[UCAL_HOUR_OF_DAY]; | |||
3125 | int32_t hourStamp = (fStamp[UCAL_HOUR] > fStamp[UCAL_AM_PM])?fStamp[UCAL_HOUR]:fStamp[UCAL_AM_PM]; | |||
3126 | int32_t bestStamp = (hourStamp > hourOfDayStamp) ? hourStamp : hourOfDayStamp; | |||
3127 | ||||
3128 | // Hours | |||
3129 | if (bestStamp != kUnset) { | |||
3130 | if (bestStamp == hourOfDayStamp) { | |||
3131 | // Don't normalize here; let overflow bump into the next period. | |||
3132 | // This is consistent with how we handle other fields. | |||
3133 | millisInDay += internalGet(UCAL_HOUR_OF_DAY); | |||
3134 | } else { | |||
3135 | // Don't normalize here; let overflow bump into the next period. | |||
3136 | // This is consistent with how we handle other fields. | |||
3137 | millisInDay += internalGet(UCAL_HOUR); | |||
3138 | millisInDay += 12 * internalGet(UCAL_AM_PM); // Default works for unset AM_PM | |||
3139 | } | |||
3140 | } | |||
3141 | ||||
3142 | // We use the fact that unset == 0; we start with millisInDay | |||
3143 | // == HOUR_OF_DAY. | |||
3144 | millisInDay *= 60; | |||
3145 | millisInDay += internalGet(UCAL_MINUTE); // now have minutes | |||
3146 | millisInDay *= 60; | |||
3147 | millisInDay += internalGet(UCAL_SECOND); // now have seconds | |||
3148 | millisInDay *= 1000; | |||
3149 | millisInDay += internalGet(UCAL_MILLISECOND); // now have millis | |||
3150 | ||||
3151 | return millisInDay; | |||
3152 | } | |||
3153 | ||||
3154 | /** | |||
3155 | * This method can assume EXTENDED_YEAR has been set. | |||
3156 | * @param millis milliseconds of the date fields | |||
3157 | * @param millisInDay milliseconds of the time fields; may be out | |||
3158 | * or range. | |||
3159 | * @stable ICU 2.0 | |||
3160 | */ | |||
3161 | int32_t Calendar::computeZoneOffset(double millis, double millisInDay, UErrorCode &ec) { | |||
3162 | int32_t rawOffset, dstOffset; | |||
3163 | UDate wall = millis + millisInDay; | |||
3164 | BasicTimeZone* btz = getBasicTimeZone(); | |||
3165 | if (btz) { | |||
3166 | UTimeZoneLocalOption duplicatedTimeOpt = (fRepeatedWallTime == UCAL_WALLTIME_FIRST) ? UCAL_TZ_LOCAL_FORMER : UCAL_TZ_LOCAL_LATTER; | |||
3167 | UTimeZoneLocalOption nonExistingTimeOpt = (fSkippedWallTime == UCAL_WALLTIME_FIRST) ? UCAL_TZ_LOCAL_LATTER : UCAL_TZ_LOCAL_FORMER; | |||
3168 | btz->getOffsetFromLocal(wall, nonExistingTimeOpt, duplicatedTimeOpt, rawOffset, dstOffset, ec); | |||
3169 | } else { | |||
3170 | const TimeZone& tz = getTimeZone(); | |||
3171 | // By default, TimeZone::getOffset behaves UCAL_WALLTIME_LAST for both. | |||
3172 | tz.getOffset(wall, TRUE1, rawOffset, dstOffset, ec); | |||
3173 | ||||
3174 | UBool sawRecentNegativeShift = FALSE0; | |||
3175 | if (fRepeatedWallTime == UCAL_WALLTIME_FIRST) { | |||
3176 | // Check if the given wall time falls into repeated time range | |||
3177 | UDate tgmt = wall - (rawOffset + dstOffset); | |||
3178 | ||||
3179 | // Any negative zone transition within last 6 hours? | |||
3180 | // Note: The maximum historic negative zone transition is -3 hours in the tz database. | |||
3181 | // 6 hour window would be sufficient for this purpose. | |||
3182 | int32_t tmpRaw, tmpDst; | |||
3183 | tz.getOffset(tgmt - 6*60*60*1000, FALSE0, tmpRaw, tmpDst, ec); | |||
3184 | int32_t offsetDelta = (rawOffset + dstOffset) - (tmpRaw + tmpDst); | |||
3185 | ||||
3186 | U_ASSERT(offsetDelta < -6*60*60*1000)(void)0; | |||
3187 | if (offsetDelta < 0) { | |||
3188 | sawRecentNegativeShift = TRUE1; | |||
3189 | // Negative shift within last 6 hours. When UCAL_WALLTIME_FIRST is used and the given wall time falls | |||
3190 | // into the repeated time range, use offsets before the transition. | |||
3191 | // Note: If it does not fall into the repeated time range, offsets remain unchanged below. | |||
3192 | tz.getOffset(wall + offsetDelta, TRUE1, rawOffset, dstOffset, ec); | |||
3193 | } | |||
3194 | } | |||
3195 | if (!sawRecentNegativeShift && fSkippedWallTime == UCAL_WALLTIME_FIRST) { | |||
3196 | // When skipped wall time option is WALLTIME_FIRST, | |||
3197 | // recalculate offsets from the resolved time (non-wall). | |||
3198 | // When the given wall time falls into skipped wall time, | |||
3199 | // the offsets will be based on the zone offsets AFTER | |||
3200 | // the transition (which means, earliest possible interpretation). | |||
3201 | UDate tgmt = wall - (rawOffset + dstOffset); | |||
3202 | tz.getOffset(tgmt, FALSE0, rawOffset, dstOffset, ec); | |||
3203 | } | |||
3204 | } | |||
3205 | return rawOffset + dstOffset; | |||
3206 | } | |||
3207 | ||||
3208 | int32_t Calendar::computeJulianDay() | |||
3209 | { | |||
3210 | // We want to see if any of the date fields is newer than the | |||
3211 | // JULIAN_DAY. If not, then we use JULIAN_DAY. If so, then we do | |||
3212 | // the normal resolution. We only use JULIAN_DAY if it has been | |||
3213 | // set by the user. This makes it possible for the caller to set | |||
3214 | // the calendar to a time and call clear(MONTH) to reset the MONTH | |||
3215 | // to January. This is legacy behavior. Without this, | |||
3216 | // clear(MONTH) has no effect, since the internally set JULIAN_DAY | |||
3217 | // is used. | |||
3218 | if (fStamp[UCAL_JULIAN_DAY] >= (int32_t)kMinimumUserStamp) { | |||
3219 | int32_t bestStamp = newestStamp(UCAL_ERA, UCAL_DAY_OF_WEEK_IN_MONTH, kUnset); | |||
3220 | bestStamp = newestStamp(UCAL_YEAR_WOY, UCAL_EXTENDED_YEAR, bestStamp); | |||
3221 | if (bestStamp <= fStamp[UCAL_JULIAN_DAY]) { | |||
3222 | return internalGet(UCAL_JULIAN_DAY); | |||
3223 | } | |||
3224 | } | |||
3225 | ||||
3226 | UCalendarDateFields bestField = resolveFields(getFieldResolutionTable()); | |||
3227 | if (bestField == UCAL_FIELD_COUNT) { | |||
3228 | bestField = UCAL_DAY_OF_MONTH; | |||
3229 | } | |||
3230 | ||||
3231 | return handleComputeJulianDay(bestField); | |||
3232 | } | |||
3233 | ||||
3234 | // ------------------------------------------- | |||
3235 | ||||
3236 | int32_t Calendar::handleComputeJulianDay(UCalendarDateFields bestField) { | |||
3237 | UBool useMonth = (bestField == UCAL_DAY_OF_MONTH || | |||
3238 | bestField == UCAL_WEEK_OF_MONTH || | |||
3239 | bestField == UCAL_DAY_OF_WEEK_IN_MONTH); | |||
3240 | int32_t year; | |||
3241 | ||||
3242 | if (bestField == UCAL_WEEK_OF_YEAR && newerField(UCAL_YEAR_WOY, UCAL_YEAR) == UCAL_YEAR_WOY) { | |||
3243 | year = internalGet(UCAL_YEAR_WOY); | |||
3244 | } else { | |||
3245 | year = handleGetExtendedYear(); | |||
3246 | } | |||
3247 | ||||
3248 | internalSet(UCAL_EXTENDED_YEAR, year); | |||
3249 | ||||
3250 | #if defined (U_DEBUG_CAL) | |||
3251 | fprintf(stderrstderr, "%s:%d: bestField= %s - y=%d\n", __FILE__"../deps/icu-small/source/i18n/calendar.cpp", __LINE__3251, fldName(bestField), year); | |||
3252 | #endif | |||
3253 | ||||
3254 | // Get the Julian day of the day BEFORE the start of this year. | |||
3255 | // If useMonth is true, get the day before the start of the month. | |||
3256 | ||||
3257 | // give calendar subclass a chance to have a default 'first' month | |||
3258 | int32_t month; | |||
3259 | ||||
3260 | if(isSet(UCAL_MONTH)) { | |||
3261 | month = internalGet(UCAL_MONTH); | |||
3262 | } else { | |||
3263 | month = getDefaultMonthInYear(year); | |||
3264 | } | |||
3265 | ||||
3266 | int32_t julianDay = handleComputeMonthStart(year, useMonth ? month : 0, useMonth); | |||
3267 | ||||
3268 | if (bestField == UCAL_DAY_OF_MONTH) { | |||
3269 | ||||
3270 | // give calendar subclass a chance to have a default 'first' dom | |||
3271 | int32_t dayOfMonth; | |||
3272 | if(isSet(UCAL_DAY_OF_MONTH)) { | |||
3273 | dayOfMonth = internalGet(UCAL_DAY_OF_MONTH,1); | |||
3274 | } else { | |||
3275 | dayOfMonth = getDefaultDayInMonth(year, month); | |||
3276 | } | |||
3277 | return julianDay + dayOfMonth; | |||
3278 | } | |||
3279 | ||||
3280 | if (bestField == UCAL_DAY_OF_YEAR) { | |||
3281 | return julianDay + internalGet(UCAL_DAY_OF_YEAR); | |||
3282 | } | |||
3283 | ||||
3284 | int32_t firstDayOfWeek = getFirstDayOfWeek(); // Localized fdw | |||
3285 | ||||
3286 | // At this point julianDay is the 0-based day BEFORE the first day of | |||
3287 | // January 1, year 1 of the given calendar. If julianDay == 0, it | |||
3288 | // specifies (Jan. 1, 1) - 1, in whatever calendar we are using (Julian | |||
3289 | // or Gregorian). (or it is before the month we are in, if useMonth is True) | |||
3290 | ||||
3291 | // At this point we need to process the WEEK_OF_MONTH or | |||
3292 | // WEEK_OF_YEAR, which are similar, or the DAY_OF_WEEK_IN_MONTH. | |||
3293 | // First, perform initial shared computations. These locate the | |||
3294 | // first week of the period. | |||
3295 | ||||
3296 | // Get the 0-based localized DOW of day one of the month or year. | |||
3297 | // Valid range 0..6. | |||
3298 | int32_t first = julianDayToDayOfWeek(julianDay + 1) - firstDayOfWeek; | |||
3299 | if (first < 0) { | |||
3300 | first += 7; | |||
3301 | } | |||
3302 | ||||
3303 | int32_t dowLocal = getLocalDOW(); | |||
3304 | ||||
3305 | // Find the first target DOW (dowLocal) in the month or year. | |||
3306 | // Actually, it may be just before the first of the month or year. | |||
3307 | // It will be an integer from -5..7. | |||
3308 | int32_t date = 1 - first + dowLocal; | |||
3309 | ||||
3310 | if (bestField == UCAL_DAY_OF_WEEK_IN_MONTH) { | |||
3311 | // Adjust the target DOW to be in the month or year. | |||
3312 | if (date < 1) { | |||
3313 | date += 7; | |||
3314 | } | |||
3315 | ||||
3316 | // The only trickiness occurs if the day-of-week-in-month is | |||
3317 | // negative. | |||
3318 | int32_t dim = internalGet(UCAL_DAY_OF_WEEK_IN_MONTH, 1); | |||
3319 | if (dim >= 0) { | |||
3320 | date += 7*(dim - 1); | |||
3321 | ||||
3322 | } else { | |||
3323 | // Move date to the last of this day-of-week in this month, | |||
3324 | // then back up as needed. If dim==-1, we don't back up at | |||
3325 | // all. If dim==-2, we back up once, etc. Don't back up | |||
3326 | // past the first of the given day-of-week in this month. | |||
3327 | // Note that we handle -2, -3, etc. correctly, even though | |||
3328 | // values < -1 are technically disallowed. | |||
3329 | int32_t m = internalGet(UCAL_MONTH, UCAL_JANUARY); | |||
3330 | int32_t monthLength = handleGetMonthLength(year, m); | |||
3331 | date += ((monthLength - date) / 7 + dim + 1) * 7; | |||
3332 | } | |||
3333 | } else { | |||
3334 | #if defined (U_DEBUG_CAL) | |||
3335 | fprintf(stderrstderr, "%s:%d - bf= %s\n", __FILE__"../deps/icu-small/source/i18n/calendar.cpp", __LINE__3335, fldName(bestField)); | |||
3336 | #endif | |||
3337 | ||||
3338 | if(bestField == UCAL_WEEK_OF_YEAR) { // ------------------------------------- WOY ------------- | |||
3339 | if(!isSet(UCAL_YEAR_WOY) || // YWOY not set at all or | |||
3340 | ( (resolveFields(kYearPrecedence) != UCAL_YEAR_WOY) // YWOY doesn't have precedence | |||
3341 | && (fStamp[UCAL_YEAR_WOY]!=kInternallySet) ) ) // (excluding where all fields are internally set - then YWOY is used) | |||
3342 | { | |||
3343 | // need to be sure to stay in 'real' year. | |||
3344 | int32_t woy = internalGet(bestField); | |||
3345 | ||||
3346 | int32_t nextJulianDay = handleComputeMonthStart(year+1, 0, FALSE0); // jd of day before jan 1 | |||
3347 | int32_t nextFirst = julianDayToDayOfWeek(nextJulianDay + 1) - firstDayOfWeek; | |||
3348 | ||||
3349 | if (nextFirst < 0) { // 0..6 ldow of Jan 1 | |||
3350 | nextFirst += 7; | |||
3351 | } | |||
3352 | ||||
3353 | if(woy==1) { // FIRST WEEK --------------------------------- | |||
3354 | #if defined (U_DEBUG_CAL) | |||
3355 | fprintf(stderrstderr, "%s:%d - woy=%d, yp=%d, nj(%d)=%d, nf=%d", __FILE__"../deps/icu-small/source/i18n/calendar.cpp", __LINE__3355, | |||
3356 | internalGet(bestField), resolveFields(kYearPrecedence), year+1, | |||
3357 | nextJulianDay, nextFirst); | |||
3358 | ||||
3359 | fprintf(stderrstderr, " next: %d DFW, min=%d \n", (7-nextFirst), getMinimalDaysInFirstWeek() ); | |||
3360 | #endif | |||
3361 | ||||
3362 | // nextFirst is now the localized DOW of Jan 1 of y-woy+1 | |||
3363 | if((nextFirst > 0) && // Jan 1 starts on FDOW | |||
3364 | (7-nextFirst) >= getMinimalDaysInFirstWeek()) // or enough days in the week | |||
3365 | { | |||
3366 | // Jan 1 of (yearWoy+1) is in yearWoy+1 - recalculate JD to next year | |||
3367 | #if defined (U_DEBUG_CAL) | |||
3368 | fprintf(stderrstderr, "%s:%d - was going to move JD from %d to %d [d%d]\n", __FILE__"../deps/icu-small/source/i18n/calendar.cpp", __LINE__3368, | |||
3369 | julianDay, nextJulianDay, (nextJulianDay-julianDay)); | |||
3370 | #endif | |||
3371 | julianDay = nextJulianDay; | |||
3372 | ||||
3373 | // recalculate 'first' [0-based local dow of jan 1] | |||
3374 | first = julianDayToDayOfWeek(julianDay + 1) - firstDayOfWeek; | |||
3375 | if (first < 0) { | |||
3376 | first += 7; | |||
3377 | } | |||
3378 | // recalculate date. | |||
3379 | date = 1 - first + dowLocal; | |||
3380 | } | |||
3381 | } else if(woy>=getLeastMaximum(bestField)) { | |||
3382 | // could be in the last week- find out if this JD would overstep | |||
3383 | int32_t testDate = date; | |||
3384 | if ((7 - first) < getMinimalDaysInFirstWeek()) { | |||
3385 | testDate += 7; | |||
3386 | } | |||
3387 | ||||
3388 | // Now adjust for the week number. | |||
3389 | testDate += 7 * (woy - 1); | |||
3390 | ||||
3391 | #if defined (U_DEBUG_CAL) | |||
3392 | fprintf(stderrstderr, "%s:%d - y=%d, y-1=%d doy%d, njd%d (C.F. %d)\n", | |||
3393 | __FILE__"../deps/icu-small/source/i18n/calendar.cpp", __LINE__3393, year, year-1, testDate, julianDay+testDate, nextJulianDay); | |||
3394 | #endif | |||
3395 | if(julianDay+testDate > nextJulianDay) { // is it past Dec 31? (nextJulianDay is day BEFORE year+1's Jan 1) | |||
3396 | // Fire up the calculating engines.. retry YWOY = (year-1) | |||
3397 | julianDay = handleComputeMonthStart(year-1, 0, FALSE0); // jd before Jan 1 of previous year | |||
3398 | first = julianDayToDayOfWeek(julianDay + 1) - firstDayOfWeek; // 0 based local dow of first week | |||
3399 | ||||
3400 | if(first < 0) { // 0..6 | |||
3401 | first += 7; | |||
3402 | } | |||
3403 | date = 1 - first + dowLocal; | |||
3404 | ||||
3405 | #if defined (U_DEBUG_CAL) | |||
3406 | fprintf(stderrstderr, "%s:%d - date now %d, jd%d, ywoy%d\n", | |||
3407 | __FILE__"../deps/icu-small/source/i18n/calendar.cpp", __LINE__3407, date, julianDay, year-1); | |||
3408 | #endif | |||
3409 | ||||
3410 | ||||
3411 | } /* correction needed */ | |||
3412 | } /* leastmaximum */ | |||
3413 | } /* resolvefields(year) != year_woy */ | |||
3414 | } /* bestfield != week_of_year */ | |||
3415 | ||||
3416 | // assert(bestField == WEEK_OF_MONTH || bestField == WEEK_OF_YEAR) | |||
3417 | // Adjust for minimal days in first week | |||
3418 | if ((7 - first) < getMinimalDaysInFirstWeek()) { | |||
3419 | date += 7; | |||
3420 | } | |||
3421 | ||||
3422 | // Now adjust for the week number. | |||
3423 | date += 7 * (internalGet(bestField) - 1); | |||
3424 | } | |||
3425 | ||||
3426 | return julianDay + date; | |||
3427 | } | |||
3428 | ||||
3429 | int32_t | |||
3430 | Calendar::getDefaultMonthInYear(int32_t /*eyear*/) | |||
3431 | { | |||
3432 | return 0; | |||
3433 | } | |||
3434 | ||||
3435 | int32_t | |||
3436 | Calendar::getDefaultDayInMonth(int32_t /*eyear*/, int32_t /*month*/) | |||
3437 | { | |||
3438 | return 1; | |||
3439 | } | |||
3440 | ||||
3441 | ||||
3442 | int32_t Calendar::getLocalDOW() | |||
3443 | { | |||
3444 | // Get zero-based localized DOW, valid range 0..6. This is the DOW | |||
3445 | // we are looking for. | |||
3446 | int32_t dowLocal = 0; | |||
3447 | switch (resolveFields(kDOWPrecedence)) { | |||
3448 | case UCAL_DAY_OF_WEEK: | |||
3449 | dowLocal = internalGet(UCAL_DAY_OF_WEEK) - fFirstDayOfWeek; | |||
3450 | break; | |||
3451 | case UCAL_DOW_LOCAL: | |||
3452 | dowLocal = internalGet(UCAL_DOW_LOCAL) - 1; | |||
3453 | break; | |||
3454 | default: | |||
3455 | break; | |||
3456 | } | |||
3457 | dowLocal = dowLocal % 7; | |||
3458 | if (dowLocal < 0) { | |||
3459 | dowLocal += 7; | |||
3460 | } | |||
3461 | return dowLocal; | |||
3462 | } | |||
3463 | ||||
3464 | int32_t Calendar::handleGetExtendedYearFromWeekFields(int32_t yearWoy, int32_t woy) | |||
3465 | { | |||
3466 | // We have UCAL_YEAR_WOY and UCAL_WEEK_OF_YEAR - from those, determine | |||
3467 | // what year we fall in, so that other code can set it properly. | |||
3468 | // (code borrowed from computeWeekFields and handleComputeJulianDay) | |||
3469 | //return yearWoy; | |||
3470 | ||||
3471 | // First, we need a reliable DOW. | |||
3472 | UCalendarDateFields bestField = resolveFields(kDatePrecedence); // !! Note: if subclasses have a different table, they should override handleGetExtendedYearFromWeekFields | |||
3473 | ||||
3474 | // Now, a local DOW | |||
3475 | int32_t dowLocal = getLocalDOW(); // 0..6 | |||
3476 | int32_t firstDayOfWeek = getFirstDayOfWeek(); // Localized fdw | |||
3477 | int32_t jan1Start = handleComputeMonthStart(yearWoy, 0, FALSE0); | |||
3478 | int32_t nextJan1Start = handleComputeMonthStart(yearWoy+1, 0, FALSE0); // next year's Jan1 start | |||
3479 | ||||
3480 | // At this point julianDay is the 0-based day BEFORE the first day of | |||
3481 | // January 1, year 1 of the given calendar. If julianDay == 0, it | |||
3482 | // specifies (Jan. 1, 1) - 1, in whatever calendar we are using (Julian | |||
3483 | // or Gregorian). (or it is before the month we are in, if useMonth is True) | |||
3484 | ||||
3485 | // At this point we need to process the WEEK_OF_MONTH or | |||
3486 | // WEEK_OF_YEAR, which are similar, or the DAY_OF_WEEK_IN_MONTH. | |||
3487 | // First, perform initial shared computations. These locate the | |||
3488 | // first week of the period. | |||
3489 | ||||
3490 | // Get the 0-based localized DOW of day one of the month or year. | |||
3491 | // Valid range 0..6. | |||
3492 | int32_t first = julianDayToDayOfWeek(jan1Start + 1) - firstDayOfWeek; | |||
3493 | if (first < 0) { | |||
3494 | first += 7; | |||
3495 | } | |||
3496 | ||||
3497 | //// (nextFirst was not used below) | |||
3498 | // int32_t nextFirst = julianDayToDayOfWeek(nextJan1Start + 1) - firstDayOfWeek; | |||
3499 | // if (nextFirst < 0) { | |||
3500 | // nextFirst += 7; | |||
3501 | //} | |||
3502 | ||||
3503 | int32_t minDays = getMinimalDaysInFirstWeek(); | |||
3504 | UBool jan1InPrevYear = FALSE0; // January 1st in the year of WOY is the 1st week? (i.e. first week is < minimal ) | |||
3505 | //UBool nextJan1InPrevYear = FALSE; // January 1st of Year of WOY + 1 is in the first week? | |||
3506 | ||||
3507 | if((7 - first) < minDays) { | |||
3508 | jan1InPrevYear = TRUE1; | |||
3509 | } | |||
3510 | ||||
3511 | // if((7 - nextFirst) < minDays) { | |||
3512 | // nextJan1InPrevYear = TRUE; | |||
3513 | // } | |||
3514 | ||||
3515 | switch(bestField) { | |||
3516 | case UCAL_WEEK_OF_YEAR: | |||
3517 | if(woy == 1) { | |||
3518 | if(jan1InPrevYear == TRUE1) { | |||
3519 | // the first week of January is in the previous year | |||
3520 | // therefore WOY1 is always solidly within yearWoy | |||
3521 | return yearWoy; | |||
3522 | } else { | |||
3523 | // First WOY is split between two years | |||
3524 | if( dowLocal < first) { // we are prior to Jan 1 | |||
3525 | return yearWoy-1; // previous year | |||
3526 | } else { | |||
3527 | return yearWoy; // in this year | |||
3528 | } | |||
3529 | } | |||
3530 | } else if(woy >= getLeastMaximum(bestField)) { | |||
3531 | // we _might_ be in the last week.. | |||
3532 | int32_t jd = // Calculate JD of our target day: | |||
3533 | jan1Start + // JD of Jan 1 | |||
3534 | (7-first) + // days in the first week (Jan 1.. ) | |||
3535 | (woy-1)*7 + // add the weeks of the year | |||
3536 | dowLocal; // the local dow (0..6) of last week | |||
3537 | if(jan1InPrevYear==FALSE0) { | |||
3538 | jd -= 7; // woy already includes Jan 1's week. | |||
3539 | } | |||
3540 | ||||
3541 | if( (jd+1) >= nextJan1Start ) { | |||
3542 | // we are in week 52 or 53 etc. - actual year is yearWoy+1 | |||
3543 | return yearWoy+1; | |||
3544 | } else { | |||
3545 | // still in yearWoy; | |||
3546 | return yearWoy; | |||
3547 | } | |||
3548 | } else { | |||
3549 | // we're not possibly in the last week -must be ywoy | |||
3550 | return yearWoy; | |||
3551 | } | |||
3552 | ||||
3553 | case UCAL_DATE: | |||
3554 | if((internalGet(UCAL_MONTH)==0) && | |||
3555 | (woy >= getLeastMaximum(UCAL_WEEK_OF_YEAR))) { | |||
3556 | return yearWoy+1; // month 0, late woy = in the next year | |||
3557 | } else if(woy==1) { | |||
3558 | //if(nextJan1InPrevYear) { | |||
3559 | if(internalGet(UCAL_MONTH)==0) { | |||
3560 | return yearWoy; | |||
3561 | } else { | |||
3562 | return yearWoy-1; | |||
3563 | } | |||
3564 | //} | |||
3565 | } | |||
3566 | ||||
3567 | //(internalGet(UCAL_DATE) <= (7-first)) /* && in minDow */ ) { | |||
3568 | //within 1st week and in this month.. | |||
3569 | //return yearWoy+1; | |||
3570 | return yearWoy; | |||
3571 | ||||
3572 | default: // assume the year is appropriate | |||
3573 | return yearWoy; | |||
3574 | } | |||
3575 | } | |||
3576 | ||||
3577 | int32_t Calendar::handleGetMonthLength(int32_t extendedYear, int32_t month) const | |||
3578 | { | |||
3579 | return handleComputeMonthStart(extendedYear, month+1, TRUE1) - | |||
3580 | handleComputeMonthStart(extendedYear, month, TRUE1); | |||
3581 | } | |||
3582 | ||||
3583 | int32_t Calendar::handleGetYearLength(int32_t eyear) const { | |||
3584 | return handleComputeMonthStart(eyear+1, 0, FALSE0) - | |||
3585 | handleComputeMonthStart(eyear, 0, FALSE0); | |||
3586 | } | |||
3587 | ||||
3588 | int32_t | |||
3589 | Calendar::getActualMaximum(UCalendarDateFields field, UErrorCode& status) const | |||
3590 | { | |||
3591 | int32_t result; | |||
3592 | switch (field) { | |||
3593 | case UCAL_DATE: | |||
3594 | { | |||
3595 | if(U_FAILURE(status)) return 0; | |||
3596 | Calendar *cal = clone(); | |||
3597 | if(!cal) { status = U_MEMORY_ALLOCATION_ERROR; return 0; } | |||
3598 | cal->setLenient(TRUE1); | |||
3599 | cal->prepareGetActual(field,FALSE0,status); | |||
3600 | result = handleGetMonthLength(cal->get(UCAL_EXTENDED_YEAR, status), cal->get(UCAL_MONTH, status)); | |||
3601 | delete cal; | |||
3602 | } | |||
3603 | break; | |||
3604 | ||||
3605 | case UCAL_DAY_OF_YEAR: | |||
3606 | { | |||
3607 | if(U_FAILURE(status)) return 0; | |||
3608 | Calendar *cal = clone(); | |||
3609 | if(!cal) { status = U_MEMORY_ALLOCATION_ERROR; return 0; } | |||
3610 | cal->setLenient(TRUE1); | |||
3611 | cal->prepareGetActual(field,FALSE0,status); | |||
3612 | result = handleGetYearLength(cal->get(UCAL_EXTENDED_YEAR, status)); | |||
3613 | delete cal; | |||
3614 | } | |||
3615 | break; | |||
3616 | ||||
3617 | case UCAL_DAY_OF_WEEK: | |||
3618 | case UCAL_AM_PM: | |||
3619 | case UCAL_HOUR: | |||
3620 | case UCAL_HOUR_OF_DAY: | |||
3621 | case UCAL_MINUTE: | |||
3622 | case UCAL_SECOND: | |||
3623 | case UCAL_MILLISECOND: | |||
3624 | case UCAL_ZONE_OFFSET: | |||
3625 | case UCAL_DST_OFFSET: | |||
3626 | case UCAL_DOW_LOCAL: | |||
3627 | case UCAL_JULIAN_DAY: | |||
3628 | case UCAL_MILLISECONDS_IN_DAY: | |||
3629 | // These fields all have fixed minima/maxima | |||
3630 | result = getMaximum(field); | |||
3631 | break; | |||
3632 | ||||
3633 | default: | |||
3634 | // For all other fields, do it the hard way.... | |||
3635 | result = getActualHelper(field, getLeastMaximum(field), getMaximum(field),status); | |||
3636 | break; | |||
3637 | } | |||
3638 | return result; | |||
3639 | } | |||
3640 | ||||
3641 | ||||
3642 | /** | |||
3643 | * Prepare this calendar for computing the actual minimum or maximum. | |||
3644 | * This method modifies this calendar's fields; it is called on a | |||
3645 | * temporary calendar. | |||
3646 | * | |||
3647 | * <p>Rationale: The semantics of getActualXxx() is to return the | |||
3648 | * maximum or minimum value that the given field can take, taking into | |||
3649 | * account other relevant fields. In general these other fields are | |||
3650 | * larger fields. For example, when computing the actual maximum | |||
3651 | * DATE, the current value of DATE itself is ignored, | |||
3652 | * as is the value of any field smaller. | |||
3653 | * | |||
3654 | * <p>The time fields all have fixed minima and maxima, so we don't | |||
3655 | * need to worry about them. This also lets us set the | |||
3656 | * MILLISECONDS_IN_DAY to zero to erase any effects the time fields | |||
3657 | * might have when computing date fields. | |||
3658 | * | |||
3659 | * <p>DAY_OF_WEEK is adjusted specially for the WEEK_OF_MONTH and | |||
3660 | * WEEK_OF_YEAR fields to ensure that they are computed correctly. | |||
3661 | * @internal | |||
3662 | */ | |||
3663 | void Calendar::prepareGetActual(UCalendarDateFields field, UBool isMinimum, UErrorCode &status) | |||
3664 | { | |||
3665 | set(UCAL_MILLISECONDS_IN_DAY, 0); | |||
3666 | ||||
3667 | switch (field) { | |||
3668 | case UCAL_YEAR: | |||
3669 | case UCAL_EXTENDED_YEAR: | |||
3670 | set(UCAL_DAY_OF_YEAR, getGreatestMinimum(UCAL_DAY_OF_YEAR)); | |||
3671 | break; | |||
3672 | ||||
3673 | case UCAL_YEAR_WOY: | |||
3674 | set(UCAL_WEEK_OF_YEAR, getGreatestMinimum(UCAL_WEEK_OF_YEAR)); | |||
3675 | U_FALLTHROUGH[[clang::fallthrough]]; | |||
3676 | case UCAL_MONTH: | |||
3677 | set(UCAL_DATE, getGreatestMinimum(UCAL_DATE)); | |||
3678 | break; | |||
3679 | ||||
3680 | case UCAL_DAY_OF_WEEK_IN_MONTH: | |||
3681 | // For dowim, the maximum occurs for the DOW of the first of the | |||
3682 | // month. | |||
3683 | set(UCAL_DATE, 1); | |||
3684 | set(UCAL_DAY_OF_WEEK, get(UCAL_DAY_OF_WEEK, status)); // Make this user set | |||
3685 | break; | |||
3686 | ||||
3687 | case UCAL_WEEK_OF_MONTH: | |||
3688 | case UCAL_WEEK_OF_YEAR: | |||
3689 | // If we're counting weeks, set the day of the week to either the | |||
3690 | // first or last localized DOW. We know the last week of a month | |||
3691 | // or year will contain the first day of the week, and that the | |||
3692 | // first week will contain the last DOW. | |||
3693 | { | |||
3694 | int32_t dow = fFirstDayOfWeek; | |||
3695 | if (isMinimum) { | |||
3696 | dow = (dow + 6) % 7; // set to last DOW | |||
3697 | if (dow < UCAL_SUNDAY) { | |||
3698 | dow += 7; | |||
3699 | } | |||
3700 | } | |||
3701 | #if defined (U_DEBUG_CAL) | |||
3702 | fprintf(stderrstderr, "prepareGetActualHelper(WOM/WOY) - dow=%d\n", dow); | |||
3703 | #endif | |||
3704 | set(UCAL_DAY_OF_WEEK, dow); | |||
3705 | } | |||
3706 | break; | |||
3707 | default: | |||
3708 | break; | |||
3709 | } | |||
3710 | ||||
3711 | // Do this last to give it the newest time stamp | |||
3712 | set(field, getGreatestMinimum(field)); | |||
3713 | } | |||
3714 | ||||
3715 | int32_t Calendar::getActualHelper(UCalendarDateFields field, int32_t startValue, int32_t endValue, UErrorCode &status) const | |||
3716 | { | |||
3717 | #if defined (U_DEBUG_CAL) | |||
3718 | fprintf(stderrstderr, "getActualHelper(%d,%d .. %d, %s)\n", field, startValue, endValue, u_errorNameu_errorName_71(status)); | |||
3719 | #endif | |||
3720 | if (startValue == endValue) { | |||
3721 | // if we know that the maximum value is always the same, just return it | |||
3722 | return startValue; | |||
3723 | } | |||
3724 | ||||
3725 | int32_t delta = (endValue > startValue) ? 1 : -1; | |||
3726 | ||||
3727 | // clone the calendar so we don't mess with the real one, and set it to | |||
3728 | // accept anything for the field values | |||
3729 | if(U_FAILURE(status)) return startValue; | |||
3730 | Calendar *work = clone(); | |||
3731 | if(!work) { status = U_MEMORY_ALLOCATION_ERROR; return startValue; } | |||
3732 | ||||
3733 | // need to resolve time here, otherwise, fields set for actual limit | |||
3734 | // may cause conflict with fields previously set (but not yet resolved). | |||
3735 | work->complete(status); | |||
3736 | ||||
3737 | work->setLenient(TRUE1); | |||
3738 | work->prepareGetActual(field, delta < 0, status); | |||
3739 | ||||
3740 | // now try each value from the start to the end one by one until | |||
3741 | // we get a value that normalizes to another value. The last value that | |||
3742 | // normalizes to itself is the actual maximum for the current date | |||
3743 | work->set(field, startValue); | |||
3744 | ||||
3745 | // prepareGetActual sets the first day of week in the same week with | |||
3746 | // the first day of a month. Unlike WEEK_OF_YEAR, week number for the | |||
3747 | // week which contains days from both previous and current month is | |||
3748 | // not unique. For example, last several days in the previous month | |||
3749 | // is week 5, and the rest of week is week 1. | |||
3750 | int32_t result = startValue; | |||
3751 | if ((work->get(field, status) != startValue | |||
3752 | && field != UCAL_WEEK_OF_MONTH && delta > 0 ) || U_FAILURE(status)) { | |||
3753 | #if defined (U_DEBUG_CAL) | |||
3754 | fprintf(stderrstderr, "getActualHelper(fld %d) - got %d (not %d) - %s\n", field, work->get(field,status), startValue, u_errorNameu_errorName_71(status)); | |||
3755 | #endif | |||
3756 | } else { | |||
3757 | do { | |||
3758 | startValue += delta; | |||
3759 | work->add(field, delta, status); | |||
3760 | if (work->get(field, status) != startValue || U_FAILURE(status)) { | |||
3761 | #if defined (U_DEBUG_CAL) | |||
3762 | fprintf(stderrstderr, "getActualHelper(fld %d) - got %d (not %d), BREAK - %s\n", field, work->get(field,status), startValue, u_errorNameu_errorName_71(status)); | |||
3763 | #endif | |||
3764 | break; | |||
3765 | } | |||
3766 | result = startValue; | |||
3767 | } while (startValue != endValue); | |||
3768 | } | |||
3769 | delete work; | |||
3770 | #if defined (U_DEBUG_CAL) | |||
3771 | fprintf(stderrstderr, "getActualHelper(%d) = %d\n", field, result); | |||
3772 | #endif | |||
3773 | return result; | |||
3774 | } | |||
3775 | ||||
3776 | ||||
3777 | ||||
3778 | ||||
3779 | // ------------------------------------- | |||
3780 | ||||
3781 | void | |||
3782 | Calendar::setWeekData(const Locale& desiredLocale, const char *type, UErrorCode& status) | |||
3783 | { | |||
3784 | ||||
3785 | if (U_FAILURE(status)) return; | |||
3786 | ||||
3787 | fFirstDayOfWeek = UCAL_SUNDAY; | |||
3788 | fMinimalDaysInFirstWeek = 1; | |||
3789 | fWeekendOnset = UCAL_SATURDAY; | |||
3790 | fWeekendOnsetMillis = 0; | |||
3791 | fWeekendCease = UCAL_SUNDAY; | |||
3792 | fWeekendCeaseMillis = 86400000; // 24*60*60*1000 | |||
3793 | ||||
3794 | // Since week and weekend data is territory based instead of language based, | |||
3795 | // we may need to tweak the locale that we are using to try to get the appropriate | |||
3796 | // values, using the following logic: | |||
3797 | // 1). If the locale has a language but no territory, use the territory as defined by | |||
3798 | // the likely subtags. | |||
3799 | // 2). If the locale has a script designation then we ignore it, | |||
3800 | // then remove it ( i.e. "en_Latn_US" becomes "en_US" ) | |||
3801 | ||||
3802 | UErrorCode myStatus = U_ZERO_ERROR; | |||
3803 | ||||
3804 | Locale min(desiredLocale); | |||
3805 | min.minimizeSubtags(myStatus); | |||
3806 | Locale useLocale; | |||
3807 | if ( uprv_strlen(desiredLocale.getCountry()):: strlen(desiredLocale.getCountry()) == 0 || | |||
3808 | (uprv_strlen(desiredLocale.getScript()):: strlen(desiredLocale.getScript()) > 0 && uprv_strlen(min.getScript()):: strlen(min.getScript()) == 0) ) { | |||
3809 | myStatus = U_ZERO_ERROR; | |||
3810 | Locale max(desiredLocale); | |||
3811 | max.addLikelySubtags(myStatus); | |||
3812 | useLocale = Locale(max.getLanguage(),max.getCountry()); | |||
3813 | } else { | |||
3814 | useLocale = desiredLocale; | |||
3815 | } | |||
3816 | ||||
3817 | /* The code here is somewhat of a hack, since week data and weekend data aren't really tied to | |||
3818 | a specific calendar, they aren't truly locale data. But this is the only place where valid and | |||
3819 | actual locale can be set, so we take a shot at it here by loading a representative resource | |||
3820 | from the calendar data. The code used to use the dateTimeElements resource to get first day | |||
3821 | of week data, but this was moved to supplemental data under ticket 7755. (JCE) */ | |||
3822 | ||||
3823 | // Get the monthNames resource bundle for the calendar 'type'. Fallback to gregorian if the resource is not | |||
3824 | // found. | |||
3825 | LocalUResourceBundlePointer calData(ures_openures_open_71(NULL__null, useLocale.getBaseName(), &status)); | |||
3826 | ures_getByKeyures_getByKey_71(calData.getAlias(), gCalendar, calData.getAlias(), &status); | |||
3827 | ||||
3828 | LocalUResourceBundlePointer monthNames; | |||
3829 | if (type != NULL__null && *type != '\0' && uprv_strcmp(type, gGregorian):: strcmp(type, gGregorian) != 0) { | |||
3830 | monthNames.adoptInstead(ures_getByKeyWithFallbackures_getByKeyWithFallback_71(calData.getAlias(), type, NULL__null, &status)); | |||
3831 | ures_getByKeyWithFallbackures_getByKeyWithFallback_71(monthNames.getAlias(), gMonthNames, | |||
3832 | monthNames.getAlias(), &status); | |||
3833 | } | |||
3834 | ||||
3835 | if (monthNames.isNull() || status == U_MISSING_RESOURCE_ERROR) { | |||
3836 | status = U_ZERO_ERROR; | |||
3837 | monthNames.adoptInstead(ures_getByKeyWithFallbackures_getByKeyWithFallback_71(calData.getAlias(), gGregorian, | |||
3838 | monthNames.orphan(), &status)); | |||
3839 | ures_getByKeyWithFallbackures_getByKeyWithFallback_71(monthNames.getAlias(), gMonthNames, | |||
3840 | monthNames.getAlias(), &status); | |||
3841 | } | |||
3842 | ||||
3843 | if (U_SUCCESS(status)) { | |||
3844 | U_LOCALE_BASED(locBased,*this)LocaleBased locBased((*this).validLocale, (*this).actualLocale ); | |||
3845 | locBased.setLocaleIDs(ures_getLocaleByTypeures_getLocaleByType_71(monthNames.getAlias(), ULOC_VALID_LOCALE, &status), | |||
3846 | ures_getLocaleByTypeures_getLocaleByType_71(monthNames.getAlias(), ULOC_ACTUAL_LOCALE, &status)); | |||
3847 | } else { | |||
3848 | status = U_USING_FALLBACK_WARNING; | |||
3849 | return; | |||
3850 | } | |||
3851 | ||||
3852 | char region[ULOC_COUNTRY_CAPACITY4]; | |||
3853 | (void)ulocimp_getRegionForSupplementalDataulocimp_getRegionForSupplementalData_71(desiredLocale.getName(), TRUE1, region, sizeof(region), &status); | |||
3854 | ||||
3855 | // Read week data values from supplementalData week data | |||
3856 | UResourceBundle *rb = ures_openDirectures_openDirect_71(NULL__null, "supplementalData", &status); | |||
3857 | ures_getByKeyures_getByKey_71(rb, "weekData", rb, &status); | |||
3858 | UResourceBundle *weekData = ures_getByKeyures_getByKey_71(rb, region, NULL__null, &status); | |||
3859 | if (status == U_MISSING_RESOURCE_ERROR && rb != NULL__null) { | |||
3860 | status = U_ZERO_ERROR; | |||
3861 | weekData = ures_getByKeyures_getByKey_71(rb, "001", NULL__null, &status); | |||
3862 | } | |||
3863 | ||||
3864 | if (U_FAILURE(status)) { | |||
3865 | status = U_USING_FALLBACK_WARNING; | |||
3866 | } else { | |||
3867 | int32_t arrLen; | |||
3868 | const int32_t *weekDataArr = ures_getIntVectorures_getIntVector_71(weekData,&arrLen,&status); | |||
3869 | if( U_SUCCESS(status) && arrLen == 6 | |||
3870 | && 1 <= weekDataArr[0] && weekDataArr[0] <= 7 | |||
3871 | && 1 <= weekDataArr[1] && weekDataArr[1] <= 7 | |||
3872 | && 1 <= weekDataArr[2] && weekDataArr[2] <= 7 | |||
3873 | && 1 <= weekDataArr[4] && weekDataArr[4] <= 7) { | |||
3874 | fFirstDayOfWeek = (UCalendarDaysOfWeek)weekDataArr[0]; | |||
3875 | fMinimalDaysInFirstWeek = (uint8_t)weekDataArr[1]; | |||
3876 | fWeekendOnset = (UCalendarDaysOfWeek)weekDataArr[2]; | |||
3877 | fWeekendOnsetMillis = weekDataArr[3]; | |||
3878 | fWeekendCease = (UCalendarDaysOfWeek)weekDataArr[4]; | |||
3879 | fWeekendCeaseMillis = weekDataArr[5]; | |||
3880 | } else { | |||
3881 | status = U_INVALID_FORMAT_ERROR; | |||
3882 | } | |||
3883 | } | |||
3884 | ures_closeures_close_71(weekData); | |||
3885 | ures_closeures_close_71(rb); | |||
3886 | } | |||
3887 | ||||
3888 | /** | |||
3889 | * Recompute the time and update the status fields isTimeSet | |||
3890 | * and areFieldsSet. Callers should check isTimeSet and only | |||
3891 | * call this method if isTimeSet is false. | |||
3892 | */ | |||
3893 | void | |||
3894 | Calendar::updateTime(UErrorCode& status) | |||
3895 | { | |||
3896 | computeTime(status); | |||
3897 | if(U_FAILURE(status)) | |||
3898 | return; | |||
3899 | ||||
3900 | // If we are lenient, we need to recompute the fields to normalize | |||
3901 | // the values. Also, if we haven't set all the fields yet (i.e., | |||
3902 | // in a newly-created object), we need to fill in the fields. [LIU] | |||
3903 | if (isLenient() || ! fAreAllFieldsSet) | |||
3904 | fAreFieldsSet = FALSE0; | |||
3905 | ||||
3906 | fIsTimeSet = TRUE1; | |||
3907 | fAreFieldsVirtuallySet = FALSE0; | |||
3908 | } | |||
3909 | ||||
3910 | Locale | |||
3911 | Calendar::getLocale(ULocDataLocaleType type, UErrorCode& status) const { | |||
3912 | U_LOCALE_BASED(locBased, *this)LocaleBased locBased((*this).validLocale, (*this).actualLocale ); | |||
3913 | return locBased.getLocale(type, status); | |||
3914 | } | |||
3915 | ||||
3916 | const char * | |||
3917 | Calendar::getLocaleID(ULocDataLocaleType type, UErrorCode& status) const { | |||
3918 | U_LOCALE_BASED(locBased, *this)LocaleBased locBased((*this).validLocale, (*this).actualLocale ); | |||
3919 | return locBased.getLocaleID(type, status); | |||
3920 | } | |||
3921 | ||||
3922 | void | |||
3923 | Calendar::recalculateStamp() { | |||
3924 | int32_t index; | |||
3925 | int32_t currentValue; | |||
3926 | int32_t j, i; | |||
3927 | ||||
3928 | fNextStamp = 1; | |||
3929 | ||||
3930 | for (j = 0; j < UCAL_FIELD_COUNT; j++) { | |||
3931 | currentValue = STAMP_MAX10000; | |||
3932 | index = -1; | |||
3933 | for (i = 0; i < UCAL_FIELD_COUNT; i++) { | |||
3934 | if (fStamp[i] > fNextStamp && fStamp[i] < currentValue) { | |||
3935 | currentValue = fStamp[i]; | |||
3936 | index = i; | |||
3937 | } | |||
3938 | } | |||
3939 | ||||
3940 | if (index >= 0) { | |||
3941 | fStamp[index] = ++fNextStamp; | |||
3942 | } else { | |||
3943 | break; | |||
3944 | } | |||
3945 | } | |||
3946 | fNextStamp++; | |||
3947 | } | |||
3948 | ||||
3949 | // Deprecated function. This doesn't need to be inline. | |||
3950 | void | |||
3951 | Calendar::internalSet(EDateFields field, int32_t value) | |||
3952 | { | |||
3953 | internalSet((UCalendarDateFields) field, value); | |||
3954 | } | |||
3955 | ||||
3956 | BasicTimeZone* | |||
3957 | Calendar::getBasicTimeZone(void) const { | |||
3958 | if (dynamic_cast<const OlsonTimeZone *>(fZone) != NULL__null | |||
3959 | || dynamic_cast<const SimpleTimeZone *>(fZone) != NULL__null | |||
3960 | || dynamic_cast<const RuleBasedTimeZone *>(fZone) != NULL__null | |||
3961 | || dynamic_cast<const VTimeZone *>(fZone) != NULL__null) { | |||
3962 | return (BasicTimeZone*)fZone; | |||
3963 | } | |||
3964 | return NULL__null; | |||
3965 | } | |||
3966 | ||||
3967 | U_NAMESPACE_END} | |||
3968 | ||||
3969 | #endif /* #if !UCONFIG_NO_FORMATTING */ | |||
3970 | ||||
3971 | ||||
3972 | //eof |