+// © 2016 and later: Unicode, Inc. and others.
+// License & terms of use: http://www.unicode.org/copyright.html
/*
*******************************************************************************
-* Copyright (C) 1997-2006, International Business Machines Corporation and *
+* Copyright (C) 1997-2016, International Business Machines Corporation and *
* others. All Rights Reserved. *
*******************************************************************************
*
*
* Date Name Description
* 02/03/97 clhuang Creation.
-* 04/22/97 aliu Cleaned up, fixed memory leak, made
-* setWeekCountData() more robust.
+* 04/22/97 aliu Cleaned up, fixed memory leak, made
+* setWeekCountData() more robust.
* Moved platform code to TPlatformUtilities.
* 05/01/97 aliu Made equals(), before(), after() arguments const.
* 05/20/97 aliu Changed logic of when to compute fields and time
*******************************************************************************
*/
+#include "utypeinfo.h" // for 'typeid' to work
+
#include "unicode/utypes.h"
#if !UCONFIG_NO_FORMATTING
#include "unicode/gregocal.h"
+#include "unicode/basictz.h"
+#include "unicode/simpletz.h"
+#include "unicode/rbtz.h"
+#include "unicode/vtzone.h"
#include "gregoimp.h"
#include "buddhcal.h"
+#include "taiwncal.h"
#include "japancal.h"
#include "islamcal.h"
#include "hebrwcal.h"
-//#include "chnsecal.h"
+#include "persncal.h"
+#include "indiancal.h"
+#include "chnsecal.h"
+#include "coptccal.h"
+#include "dangical.h"
+#include "ethpccal.h"
#include "unicode/calendar.h"
#include "cpputils.h"
#include "servloc.h"
#include "cstring.h"
#include "locbased.h"
#include "uresimp.h"
+#include "ustrenum.h"
+#include "uassert.h"
+#include "olsontz.h"
+#include "sharedcalendar.h"
+#include "unifiedcache.h"
+#include "ulocimp.h"
#if !UCONFIG_NO_SERVICE
-static ICULocaleService* gService = NULL;
-#endif
+static icu::ICULocaleService* gService = NULL;
+static icu::UInitOnce gServiceInitOnce = U_INITONCE_INITIALIZER;
// INTERNAL - for cleanup
-
U_CDECL_BEGIN
static UBool calendar_cleanup(void) {
#if !UCONFIG_NO_SERVICE
- if (gService) {
- delete gService;
- gService = NULL;
- }
+ if (gService) {
+ delete gService;
+ gService = NULL;
+ }
+ gServiceInitOnce.reset();
#endif
- return TRUE;
+ return TRUE;
}
U_CDECL_END
+#endif
// ------------------------------------------
//
//
#if defined( U_DEBUG_CALSVC ) || defined (U_DEBUG_CAL)
-#include <stdio.h>
-
/**
- * convert a UCalendarDateFields into a string - for debugging
- * @param f field enum
- * @return static string to the field name
- * @internal
+ * fldName was removed as a duplicate implementation.
+ * use udbg_ services instead,
+ * which depend on include files and library from ../tools/toolutil, the following circular link:
+ * CPPFLAGS+=-I$(top_srcdir)/tools/toolutil
+ * LIBS+=$(LIBICUTOOLUTIL)
*/
-static const char* fldName(UCalendarDateFields f) {
- switch (f) {
-#define FIELD_NAME_STR(x) case x: return (#x+5)
- FIELD_NAME_STR( UCAL_ERA );
- FIELD_NAME_STR( UCAL_YEAR );
- FIELD_NAME_STR( UCAL_MONTH );
- FIELD_NAME_STR( UCAL_WEEK_OF_YEAR );
- FIELD_NAME_STR( UCAL_WEEK_OF_MONTH );
- FIELD_NAME_STR( UCAL_DATE );
- FIELD_NAME_STR( UCAL_DAY_OF_YEAR );
- FIELD_NAME_STR( UCAL_DAY_OF_WEEK );
- FIELD_NAME_STR( UCAL_DAY_OF_WEEK_IN_MONTH );
- FIELD_NAME_STR( UCAL_AM_PM );
- FIELD_NAME_STR( UCAL_HOUR );
- FIELD_NAME_STR( UCAL_HOUR_OF_DAY );
- FIELD_NAME_STR( UCAL_MINUTE );
- FIELD_NAME_STR( UCAL_SECOND );
- FIELD_NAME_STR( UCAL_MILLISECOND );
- FIELD_NAME_STR( UCAL_ZONE_OFFSET );
- FIELD_NAME_STR( UCAL_DST_OFFSET );
- FIELD_NAME_STR( UCAL_YEAR_WOY );
- FIELD_NAME_STR( UCAL_DOW_LOCAL );
- FIELD_NAME_STR( UCAL_EXTENDED_YEAR );
- FIELD_NAME_STR( UCAL_JULIAN_DAY );
- FIELD_NAME_STR( UCAL_MILLISECONDS_IN_DAY );
-#undef FIELD_NAME_STR
- default:
- return "??";
- }
-}
+#include "udbgutil.h"
+#include <stdio.h>
+
+/**
+* convert a UCalendarDateFields into a string - for debugging
+* @param f field enum
+* @return static string to the field name
+* @internal
+*/
+const char* fldName(UCalendarDateFields f) {
+ return udbg_enumName(UDBG_UCalendarDateFields, (int32_t)f);
+}
#if UCAL_DEBUG_DUMP
// from CalendarTest::calToStr - but doesn't modify contents.
}
void Calendar::dump() const {
- int i;
- fprintf(stderr, "@calendar=%s, timeset=%c, fieldset=%c, allfields=%c, virtualset=%c, t=%.2f",
- getType(), fIsTimeSet?'y':'n', fAreFieldsSet?'y':'n', fAreAllFieldsSet?'y':'n',
+ int i;
+ fprintf(stderr, "@calendar=%s, timeset=%c, fieldset=%c, allfields=%c, virtualset=%c, t=%.2f",
+ getType(), fIsTimeSet?'y':'n', fAreFieldsSet?'y':'n', fAreAllFieldsSet?'y':'n',
fAreFieldsVirtuallySet?'y':'n',
fTime);
-
- // can add more things here: DST, zone, etc.
- fprintf(stderr, "\n");
- for(i = 0;i<UCAL_FIELD_COUNT;i++) {
- int n;
- const char *f = fldName((UCalendarDateFields)i);
- fprintf(stderr, " %25s: %-11ld", f, fFields[i]);
- if(fStamp[i] == kUnset) {
- fprintf(stderr, " (unset) ");
- } else if(fStamp[i] == kInternallySet) {
- fprintf(stderr, " (internally set) ");
- //} else if(fStamp[i] == kInternalDefault) {
- // fprintf(stderr, " (internal default) ");
- } else {
- fprintf(stderr, " %%%d ", fStamp[i]);
- }
+
+ // can add more things here: DST, zone, etc.
fprintf(stderr, "\n");
-
- }
+ for(i = 0;i<UCAL_FIELD_COUNT;i++) {
+ int n;
+ const char *f = fldName((UCalendarDateFields)i);
+ fprintf(stderr, " %25s: %-11ld", f, fFields[i]);
+ if(fStamp[i] == kUnset) {
+ fprintf(stderr, " (unset) ");
+ } else if(fStamp[i] == kInternallySet) {
+ fprintf(stderr, " (internally set) ");
+ //} else if(fStamp[i] == kInternalDefault) {
+ // fprintf(stderr, " (internal default) ");
+ } else {
+ fprintf(stderr, " %%%d ", fStamp[i]);
+ }
+ fprintf(stderr, "\n");
+
+ }
}
U_CFUNC void ucal_dump(UCalendar* cal) {
#endif
-static const char * const gCalendarKeywords[] = {
+/* Max value for stamp allowable before recalculation */
+#define STAMP_MAX 10000
+
+static const char * const gCalTypes[] = {
"gregorian",
"japanese",
"buddhist",
+ "roc",
+ "persian",
"islamic-civil",
"islamic",
"hebrew",
"chinese",
+ "indian",
+ "coptic",
+ "ethiopic",
+ "ethiopic-amete-alem",
+ "iso8601",
+ "dangi",
+ "islamic-umalqura",
+ "islamic-tbla",
+ "islamic-rgsa",
NULL
};
+// Must be in the order of gCalTypes above
+typedef enum ECalType {
+ CALTYPE_UNKNOWN = -1,
+ CALTYPE_GREGORIAN = 0,
+ CALTYPE_JAPANESE,
+ CALTYPE_BUDDHIST,
+ CALTYPE_ROC,
+ CALTYPE_PERSIAN,
+ CALTYPE_ISLAMIC_CIVIL,
+ CALTYPE_ISLAMIC,
+ CALTYPE_HEBREW,
+ CALTYPE_CHINESE,
+ CALTYPE_INDIAN,
+ CALTYPE_COPTIC,
+ CALTYPE_ETHIOPIC,
+ CALTYPE_ETHIOPIC_AMETE_ALEM,
+ CALTYPE_ISO8601,
+ CALTYPE_DANGI,
+ CALTYPE_ISLAMIC_UMALQURA,
+ CALTYPE_ISLAMIC_TBLA,
+ CALTYPE_ISLAMIC_RGSA
+} ECalType;
+
U_NAMESPACE_BEGIN
-static UBool isStandardSupportedKeyword(const char *keyword, UErrorCode& status) {
- if(U_FAILURE(status)) {
- return FALSE;
+SharedCalendar::~SharedCalendar() {
+ delete ptr;
+}
+
+template<> U_I18N_API
+const SharedCalendar *LocaleCacheKey<SharedCalendar>::createObject(
+ const void * /*unusedCreationContext*/, UErrorCode &status) const {
+ Calendar *calendar = Calendar::makeInstance(fLoc, status);
+ if (U_FAILURE(status)) {
+ return NULL;
}
- for(int32_t i=0; gCalendarKeywords[i] != NULL; i++) {
- if(uprv_strcmp(gCalendarKeywords[i], keyword) == 0) {
- return TRUE;
+ SharedCalendar *shared = new SharedCalendar(calendar);
+ if (shared == NULL) {
+ delete calendar;
+ status = U_MEMORY_ALLOCATION_ERROR;
+ return NULL;
+ }
+ shared->addRef();
+ return shared;
+}
+
+static ECalType getCalendarType(const char *s) {
+ for (int i = 0; gCalTypes[i] != NULL; i++) {
+ if (uprv_stricmp(s, gCalTypes[i]) == 0) {
+ return (ECalType)i;
}
}
- return FALSE;
+ return CALTYPE_UNKNOWN;
+}
+
+#if !UCONFIG_NO_SERVICE
+// Only used with service registration.
+static UBool isStandardSupportedKeyword(const char *keyword, UErrorCode& status) {
+ if(U_FAILURE(status)) {
+ return FALSE;
+ }
+ ECalType calType = getCalendarType(keyword);
+ return (calType != CALTYPE_UNKNOWN);
}
+// only used with service registration.
static void getCalendarKeyword(const UnicodeString &id, char *targetBuffer, int32_t targetBufferSize) {
UnicodeString calendarKeyword = UNICODE_STRING_SIMPLE("calendar=");
int32_t calKeyLen = calendarKeyword.length();
}
targetBuffer[keyLen] = 0;
}
-
-static Calendar *createStandardCalendar(char *calType, const Locale &canLoc, UErrorCode& status) {
-#ifdef U_DEBUG_CALSVC
- fprintf(stderr, "BasicCalendarFactory %p: creating type for %s\n",
- this, (const char*)curLoc.getName());
- fflush(stderr);
#endif
- if(!calType || !*calType || !uprv_strcmp(calType,"gregorian")) { // Gregorian (default)
- return new GregorianCalendar(canLoc, status);
- } else if(!uprv_strcmp(calType, "japanese")) {
- return new JapaneseCalendar(canLoc, status);
- } else if(!uprv_strcmp(calType, "buddhist")) {
- return new BuddhistCalendar(canLoc, status);
- } else if(!uprv_strcmp(calType, "islamic-civil")) {
- return new IslamicCalendar(canLoc, status, IslamicCalendar::CIVIL);
- } else if(!uprv_strcmp(calType, "islamic")) {
- return new IslamicCalendar(canLoc, status, IslamicCalendar::ASTRONOMICAL);
- } else if(!uprv_strcmp(calType, "hebrew")) {
- return new HebrewCalendar(canLoc, status);
- //} else if(!uprv_strcmp(calType, "chinese")) {
- //return new ChineseCalendar(canLoc, status);
- } else {
- status = U_UNSUPPORTED_ERROR;
- return NULL;
- }
+static ECalType getCalendarTypeForLocale(const char *locid) {
+ UErrorCode status = U_ZERO_ERROR;
+ ECalType calType = CALTYPE_UNKNOWN;
+
+ //TODO: ULOC_FULL_NAME is out of date and too small..
+ char canonicalName[256];
+
+ // canonicalize, so grandfathered variant will be transformed to keywords
+ // e.g ja_JP_TRADITIONAL -> ja_JP@calendar=japanese
+ int32_t canonicalLen = uloc_canonicalize(locid, canonicalName, sizeof(canonicalName) - 1, &status);
+ if (U_FAILURE(status)) {
+ return CALTYPE_GREGORIAN;
+ }
+ canonicalName[canonicalLen] = 0; // terminate
+
+ char calTypeBuf[32];
+ int32_t calTypeBufLen;
+
+ calTypeBufLen = uloc_getKeywordValue(canonicalName, "calendar", calTypeBuf, sizeof(calTypeBuf) - 1, &status);
+ if (U_SUCCESS(status)) {
+ calTypeBuf[calTypeBufLen] = 0;
+ calType = getCalendarType(calTypeBuf);
+ if (calType != CALTYPE_UNKNOWN) {
+ return calType;
+ }
+ }
+ status = U_ZERO_ERROR;
+
+ // when calendar keyword is not available or not supported, read supplementalData
+ // to get the default calendar type for the locale's region
+ char region[ULOC_COUNTRY_CAPACITY];
+ (void)ulocimp_getRegionForSupplementalData(canonicalName, TRUE, region, sizeof(region), &status);
+ if (U_FAILURE(status)) {
+ return CALTYPE_GREGORIAN;
+ }
+
+ // Read preferred calendar values from supplementalData calendarPreference
+ UResourceBundle *rb = ures_openDirect(NULL, "supplementalData", &status);
+ ures_getByKey(rb, "calendarPreferenceData", rb, &status);
+ UResourceBundle *order = ures_getByKey(rb, region, NULL, &status);
+ if (status == U_MISSING_RESOURCE_ERROR && rb != NULL) {
+ status = U_ZERO_ERROR;
+ order = ures_getByKey(rb, "001", NULL, &status);
+ }
+
+ calTypeBuf[0] = 0;
+ if (U_SUCCESS(status) && order != NULL) {
+ // the first calender type is the default for the region
+ int32_t len = 0;
+ const UChar *uCalType = ures_getStringByIndex(order, 0, &len, &status);
+ if (len < (int32_t)sizeof(calTypeBuf)) {
+ u_UCharsToChars(uCalType, calTypeBuf, len);
+ *(calTypeBuf + len) = 0; // terminate;
+ calType = getCalendarType(calTypeBuf);
+ }
+ }
+
+ ures_close(order);
+ ures_close(rb);
+
+ if (calType == CALTYPE_UNKNOWN) {
+ // final fallback
+ calType = CALTYPE_GREGORIAN;
+ }
+ return calType;
+}
+
+static Calendar *createStandardCalendar(ECalType calType, const Locale &loc, UErrorCode& status) {
+ Calendar *cal = NULL;
+
+ switch (calType) {
+ case CALTYPE_GREGORIAN:
+ cal = new GregorianCalendar(loc, status);
+ break;
+ case CALTYPE_JAPANESE:
+ cal = new JapaneseCalendar(loc, status);
+ break;
+ case CALTYPE_BUDDHIST:
+ cal = new BuddhistCalendar(loc, status);
+ break;
+ case CALTYPE_ROC:
+ cal = new TaiwanCalendar(loc, status);
+ break;
+ case CALTYPE_PERSIAN:
+ cal = new PersianCalendar(loc, status);
+ break;
+ case CALTYPE_ISLAMIC_TBLA:
+ cal = new IslamicCalendar(loc, status, IslamicCalendar::TBLA);
+ break;
+ case CALTYPE_ISLAMIC_CIVIL:
+ cal = new IslamicCalendar(loc, status, IslamicCalendar::CIVIL);
+ break;
+ case CALTYPE_ISLAMIC_RGSA:
+ // default any region specific not handled individually to islamic
+ case CALTYPE_ISLAMIC:
+ cal = new IslamicCalendar(loc, status, IslamicCalendar::ASTRONOMICAL);
+ break;
+ case CALTYPE_ISLAMIC_UMALQURA:
+ cal = new IslamicCalendar(loc, status, IslamicCalendar::UMALQURA);
+ break;
+ case CALTYPE_HEBREW:
+ cal = new HebrewCalendar(loc, status);
+ break;
+ case CALTYPE_CHINESE:
+ cal = new ChineseCalendar(loc, status);
+ break;
+ case CALTYPE_INDIAN:
+ cal = new IndianCalendar(loc, status);
+ break;
+ case CALTYPE_COPTIC:
+ cal = new CopticCalendar(loc, status);
+ break;
+ case CALTYPE_ETHIOPIC:
+ cal = new EthiopicCalendar(loc, status, EthiopicCalendar::AMETE_MIHRET_ERA);
+ break;
+ case CALTYPE_ETHIOPIC_AMETE_ALEM:
+ cal = new EthiopicCalendar(loc, status, EthiopicCalendar::AMETE_ALEM_ERA);
+ break;
+ case CALTYPE_ISO8601:
+ cal = new GregorianCalendar(loc, status);
+ cal->setFirstDayOfWeek(UCAL_MONDAY);
+ cal->setMinimalDaysInFirstWeek(4);
+ break;
+ case CALTYPE_DANGI:
+ cal = new DangiCalendar(loc, status);
+ break;
+ default:
+ status = U_UNSUPPORTED_ERROR;
+ }
+ return cal;
}
+
#if !UCONFIG_NO_SERVICE
// -------------------------------------
/**
- * a Calendar Factory which creates the "basic" calendar types, that is, those
- * shipped with ICU.
- */
+* a Calendar Factory which creates the "basic" calendar types, that is, those
+* shipped with ICU.
+*/
class BasicCalendarFactory : public LocaleKeyFactory {
public:
- /**
- * @param calendarType static const string (caller owns storage - will be aliased) to calendar type
- */
- BasicCalendarFactory()
- : LocaleKeyFactory(LocaleKeyFactory::INVISIBLE) { }
-
- virtual ~BasicCalendarFactory() {}
+ /**
+ * @param calendarType static const string (caller owns storage - will be aliased) to calendar type
+ */
+ BasicCalendarFactory()
+ : LocaleKeyFactory(LocaleKeyFactory::INVISIBLE) { }
+
+ virtual ~BasicCalendarFactory();
protected:
- //virtual UBool isSupportedID( const UnicodeString& id, UErrorCode& status) const {
- // if(U_FAILURE(status)) {
- // return FALSE;
- // }
- // char keyword[ULOC_FULLNAME_CAPACITY];
- // getCalendarKeyword(id, keyword, (int32_t)sizeof(keyword));
- // return isStandardSupportedKeyword(keyword, status);
- //}
-
- virtual void updateVisibleIDs(Hashtable& result, UErrorCode& status) const
- {
- if (U_SUCCESS(status)) {
- for(int32_t i=0;gCalendarKeywords[i] != NULL;i++) {
- UnicodeString id((UChar)0x40); /* '@' a variant character */
- id.append(UNICODE_STRING_SIMPLE("calendar="));
- id.append(UnicodeString(gCalendarKeywords[i], -1, US_INV));
- result.put(id, (void*)this, status);
- }
+ //virtual UBool isSupportedID( const UnicodeString& id, UErrorCode& status) const {
+ // if(U_FAILURE(status)) {
+ // return FALSE;
+ // }
+ // char keyword[ULOC_FULLNAME_CAPACITY];
+ // getCalendarKeyword(id, keyword, (int32_t)sizeof(keyword));
+ // return isStandardSupportedKeyword(keyword, status);
+ //}
+
+ virtual void updateVisibleIDs(Hashtable& result, UErrorCode& status) const
+ {
+ if (U_SUCCESS(status)) {
+ for(int32_t i=0;gCalTypes[i] != NULL;i++) {
+ UnicodeString id((UChar)0x40); /* '@' a variant character */
+ id.append(UNICODE_STRING_SIMPLE("calendar="));
+ id.append(UnicodeString(gCalTypes[i], -1, US_INV));
+ result.put(id, (void*)this, status);
+ }
+ }
}
- }
- virtual UObject* create(const ICUServiceKey& key, const ICUService* /*service*/, UErrorCode& status) const {
+ virtual UObject* create(const ICUServiceKey& key, const ICUService* /*service*/, UErrorCode& status) const {
#ifdef U_DEBUG_CALSVC
- if(key.getDynamicClassID() != LocaleKey::getStaticClassID()) {
- fprintf(stderr, "::create - not a LocaleKey!\n");
- }
+ if(dynamic_cast<const LocaleKey*>(&key) == NULL) {
+ fprintf(stderr, "::create - not a LocaleKey!\n");
+ }
#endif
- const LocaleKey& lkey = (LocaleKey&)key;
- Locale curLoc; // current locale
- Locale canLoc; // Canonical locale
+ const LocaleKey& lkey = (LocaleKey&)key;
+ Locale curLoc; // current locale
+ Locale canLoc; // Canonical locale
- lkey.currentLocale(curLoc);
- lkey.canonicalLocale(canLoc);
+ lkey.currentLocale(curLoc);
+ lkey.canonicalLocale(canLoc);
- char keyword[ULOC_FULLNAME_CAPACITY];
- UnicodeString str;
+ char keyword[ULOC_FULLNAME_CAPACITY];
+ UnicodeString str;
- key.currentID(str);
- getCalendarKeyword(str, keyword, (int32_t) sizeof(keyword));
+ key.currentID(str);
+ getCalendarKeyword(str, keyword, (int32_t) sizeof(keyword));
#ifdef U_DEBUG_CALSVC
- fprintf(stderr, "BasicCalendarFactory::create() - cur %s, can %s\n", (const char*)curLoc.getName(), (const char*)canLoc.getName());
+ fprintf(stderr, "BasicCalendarFactory::create() - cur %s, can %s\n", (const char*)curLoc.getName(), (const char*)canLoc.getName());
#endif
- if(!isStandardSupportedKeyword(keyword,status)) { // Do we handle this type?
+ if(!isStandardSupportedKeyword(keyword,status)) { // Do we handle this type?
#ifdef U_DEBUG_CALSVC
-
- fprintf(stderr, "BasicCalendarFactory - not handling %s.[%s]\n", (const char*) curLoc.getName(), tmp );
+
+ fprintf(stderr, "BasicCalendarFactory - not handling %s.[%s]\n", (const char*) curLoc.getName(), tmp );
#endif
- return NULL;
- }
+ return NULL;
+ }
- return createStandardCalendar(keyword, canLoc, status);
- }
+ return createStandardCalendar(getCalendarType(keyword), canLoc, status);
+ }
};
+BasicCalendarFactory::~BasicCalendarFactory() {}
-/**
- * A factory which looks up the DefaultCalendar resource to determine which class of calendar to use
- */
+/**
+* A factory which looks up the DefaultCalendar resource to determine which class of calendar to use
+*/
class DefaultCalendarFactory : public ICUResourceBundleFactory {
- public:
- DefaultCalendarFactory(): ICUResourceBundleFactory() { }
- protected:
- virtual UObject* create(const ICUServiceKey& key, const ICUService* /*service*/, UErrorCode& status) const {
-
- LocaleKey &lkey = (LocaleKey&)key;
- Locale loc;
- lkey.currentLocale(loc);
-
- UnicodeString myString;
-
- // attempt keyword lookup
- char keyword[128];
-
- if(!loc.getKeywordValue("calendar", keyword, sizeof(keyword)-1, status)) {
- // fetch default calendar id
- char funcEquiv[ULOC_FULLNAME_CAPACITY];
- ures_getFunctionalEquivalent(funcEquiv, sizeof(funcEquiv)-1,
- NULL, "calendar", "calendar",
- loc.getName(),
- NULL, FALSE, &status);
- uloc_getKeywordValue(funcEquiv, "calendar", keyword,
- sizeof(keyword)-1, &status);
-#ifdef U_DEBUG_CALSVC
- fprintf(stderr, " getFunctionalEquivalent calendar=%s [%s]\n", keyword, u_errorName(status));
-#endif
- }
-#ifdef U_DEBUG_CALSVC
- else { fprintf(stderr, " explicit calendar=%s\n", keyword); }
-#endif
+public:
+ DefaultCalendarFactory() : ICUResourceBundleFactory() { }
+ virtual ~DefaultCalendarFactory();
+protected:
+ virtual UObject* create(const ICUServiceKey& key, const ICUService* /*service*/, UErrorCode& status) const {
+ LocaleKey &lkey = (LocaleKey&)key;
+ Locale loc;
+ lkey.currentLocale(loc);
- if(U_FAILURE(status)) {
- return NULL;
- } else {
- UnicodeString *ret = new UnicodeString();
- ret->append((UChar)0x40); // '@' is a variant character
- ret->append(UNICODE_STRING("calendar=", 9));
- (*ret) += UnicodeString(keyword,-1,US_INV);
- return ret;
+ UnicodeString *ret = new UnicodeString();
+ if (ret == NULL) {
+ status = U_MEMORY_ALLOCATION_ERROR;
+ } else {
+ ret->append((UChar)0x40); // '@' is a variant character
+ ret->append(UNICODE_STRING("calendar=", 9));
+ ret->append(UnicodeString(gCalTypes[getCalendarTypeForLocale(loc.getName())], -1, US_INV));
+ }
+ return ret;
}
- }
};
+DefaultCalendarFactory::~DefaultCalendarFactory() {}
+
// -------------------------------------
class CalendarService : public ICULocaleService {
public:
- CalendarService()
- : ICULocaleService(UNICODE_STRING_SIMPLE("Calendar"))
- {
- UErrorCode status = U_ZERO_ERROR;
- registerFactory(new DefaultCalendarFactory(), status);
- }
+ CalendarService()
+ : ICULocaleService(UNICODE_STRING_SIMPLE("Calendar"))
+ {
+ UErrorCode status = U_ZERO_ERROR;
+ registerFactory(new DefaultCalendarFactory(), status);
+ }
- virtual UObject* cloneInstance(UObject* instance) const {
- if(instance->getDynamicClassID() == UnicodeString::getStaticClassID()) {
- return ((UnicodeString*)instance)->clone();
- } else {
+ virtual ~CalendarService();
+
+ virtual UObject* cloneInstance(UObject* instance) const {
+ UnicodeString *s = dynamic_cast<UnicodeString *>(instance);
+ if(s != NULL) {
+ return s->clone();
+ } else {
#ifdef U_DEBUG_CALSVC_F
- UErrorCode status2 = U_ZERO_ERROR;
- fprintf(stderr, "Cloning a %s calendar with tz=%ld\n", ((Calendar*)instance)->getType(), ((Calendar*)instance)->get(UCAL_ZONE_OFFSET, status2));
+ UErrorCode status2 = U_ZERO_ERROR;
+ fprintf(stderr, "Cloning a %s calendar with tz=%ld\n", ((Calendar*)instance)->getType(), ((Calendar*)instance)->get(UCAL_ZONE_OFFSET, status2));
#endif
- return ((Calendar*)instance)->clone();
+ return ((Calendar*)instance)->clone();
+ }
}
- }
- virtual UObject* handleDefault(const ICUServiceKey& key, UnicodeString* /*actualID*/, UErrorCode& status) const {
- LocaleKey& lkey = (LocaleKey&)key;
- //int32_t kind = lkey.kind();
+ virtual UObject* handleDefault(const ICUServiceKey& key, UnicodeString* /*actualID*/, UErrorCode& status) const {
+ LocaleKey& lkey = (LocaleKey&)key;
+ //int32_t kind = lkey.kind();
- Locale loc;
- lkey.canonicalLocale(loc);
+ Locale loc;
+ lkey.canonicalLocale(loc);
#ifdef U_DEBUG_CALSVC
Locale loc2;
lkey.currentLocale(loc2);
- fprintf(stderr, "CalSvc:handleDefault for currentLoc %s, canloc %s\n", (const char*)loc.getName(), (const char*)loc2.getName());
+ fprintf(stderr, "CalSvc:handleDefault for currentLoc %s, canloc %s\n", (const char*)loc.getName(), (const char*)loc2.getName());
#endif
- Calendar *nc = new GregorianCalendar(loc, status);
+ Calendar *nc = new GregorianCalendar(loc, status);
#ifdef U_DEBUG_CALSVC
UErrorCode status2 = U_ZERO_ERROR;
fprintf(stderr, "New default calendar has tz=%d\n", ((Calendar*)nc)->get(UCAL_ZONE_OFFSET, status2));
#endif
return nc;
- }
+ }
- virtual UBool isDefault() const {
- return countFactories() == 1;
- }
+ virtual UBool isDefault() const {
+ return countFactories() == 1;
+ }
};
+CalendarService::~CalendarService() {}
+
// -------------------------------------
static inline UBool
isCalendarServiceUsed() {
- Mutex mutex;
- return (UBool)(gService != NULL);
+ return !gServiceInitOnce.isReset();
}
// -------------------------------------
-static ICULocaleService*
-getCalendarService(UErrorCode &status)
+static void U_CALLCONV
+initCalendarService(UErrorCode &status)
{
- UBool needInit;
- {
- Mutex mutex;
- needInit = (UBool)(gService == NULL);
- }
- if (needInit) {
#ifdef U_DEBUG_CALSVC
- fprintf(stderr, "Spinning up Calendar Service\n");
+ fprintf(stderr, "Spinning up Calendar Service\n");
#endif
- ICULocaleService * newservice = new CalendarService();
+ ucln_i18n_registerCleanup(UCLN_I18N_CALENDAR, calendar_cleanup);
+ gService = new CalendarService();
+ if (gService == NULL) {
+ status = U_MEMORY_ALLOCATION_ERROR;
+ return;
+ }
#ifdef U_DEBUG_CALSVC
- fprintf(stderr, "Registering classes..\n");
+ fprintf(stderr, "Registering classes..\n");
#endif
- // Register all basic instances.
- newservice->registerFactory(new BasicCalendarFactory(),status);
+ // Register all basic instances.
+ gService->registerFactory(new BasicCalendarFactory(),status);
#ifdef U_DEBUG_CALSVC
- fprintf(stderr, "Done..\n");
+ fprintf(stderr, "Done..\n");
#endif
- if(U_FAILURE(status)) {
+ if(U_FAILURE(status)) {
#ifdef U_DEBUG_CALSVC
- fprintf(stderr, "err (%s) registering classes, deleting service.....\n", u_errorName(status));
+ fprintf(stderr, "err (%s) registering classes, deleting service.....\n", u_errorName(status));
#endif
- delete newservice;
- newservice = NULL;
- }
-
- if (newservice) {
- Mutex mutex;
- if (gService == NULL) {
- gService = newservice;
- newservice = NULL;
- }
- }
- if (newservice) {
- delete newservice;
- } else {
- // we won the contention - we can register the cleanup.
- ucln_i18n_registerCleanup(UCLN_I18N_CALENDAR, calendar_cleanup);
+ delete gService;
+ gService = NULL;
}
- }
- return gService;
+ }
+
+static ICULocaleService*
+getCalendarService(UErrorCode &status)
+{
+ umtx_initOnce(gServiceInitOnce, &initCalendarService, status);
+ return gService;
}
URegistryKey Calendar::registerFactory(ICUServiceFactory* toAdopt, UErrorCode& status)
{
- return getCalendarService(status)->registerFactory(toAdopt, status);
+ return getCalendarService(status)->registerFactory(toAdopt, status);
}
UBool Calendar::unregister(URegistryKey key, UErrorCode& status) {
- return getCalendarService(status)->unregister(key, status);
+ return getCalendarService(status)->unregister(key, status);
}
#endif /* UCONFIG_NO_SERVICE */
{ 1, 1, 7, 7 }, // DOW_LOCAL
{/*N/A*/-1, /*N/A*/-1, /*N/A*/-1, /*N/A*/-1}, // EXTENDED_YEAR
{ -0x7F000000, -0x7F000000, 0x7F000000, 0x7F000000 }, // JULIAN_DAY
- { 0, 0, 24*kOneHour-1, 24*kOneHour-1 } // MILLISECONDS_IN_DAY
+ { 0, 0, 24*kOneHour-1, 24*kOneHour-1 }, // MILLISECONDS_IN_DAY
+ { 0, 0, 1, 1 }, // IS_LEAP_MONTH
};
// Resource bundle tags read by this class
-static const char gDateTimeElements[] = "DateTimeElements";
+static const char gCalendar[] = "calendar";
+static const char gMonthNames[] = "monthNames";
+static const char gGregorian[] = "gregorian";
// Data flow in Calendar
// ---------------------
Calendar::Calendar(UErrorCode& success)
: UObject(),
- fIsTimeSet(FALSE),
- fAreFieldsSet(FALSE),
- fAreAllFieldsSet(FALSE),
- fAreFieldsVirtuallySet(FALSE),
- fNextStamp((int32_t)kMinimumUserStamp),
- fTime(0),
- fLenient(TRUE),
- fZone(0)
-{
+fIsTimeSet(FALSE),
+fAreFieldsSet(FALSE),
+fAreAllFieldsSet(FALSE),
+fAreFieldsVirtuallySet(FALSE),
+fNextStamp((int32_t)kMinimumUserStamp),
+fTime(0),
+fLenient(TRUE),
+fZone(NULL),
+fRepeatedWallTime(UCAL_WALLTIME_LAST),
+fSkippedWallTime(UCAL_WALLTIME_LAST)
+{
+ validLocale[0] = 0;
+ actualLocale[0] = 0;
clear();
+ if (U_FAILURE(success)) {
+ return;
+ }
fZone = TimeZone::createDefault();
- setWeekCountData(Locale::getDefault(), NULL, success);
+ if (fZone == NULL) {
+ success = U_MEMORY_ALLOCATION_ERROR;
+ }
+ setWeekData(Locale::getDefault(), NULL, success);
}
// -------------------------------------
Calendar::Calendar(TimeZone* zone, const Locale& aLocale, UErrorCode& success)
: UObject(),
- fIsTimeSet(FALSE),
- fAreFieldsSet(FALSE),
- fAreAllFieldsSet(FALSE),
- fAreFieldsVirtuallySet(FALSE),
- fNextStamp((int32_t)kMinimumUserStamp),
- fTime(0),
- fLenient(TRUE),
- fZone(0)
-{
+fIsTimeSet(FALSE),
+fAreFieldsSet(FALSE),
+fAreAllFieldsSet(FALSE),
+fAreFieldsVirtuallySet(FALSE),
+fNextStamp((int32_t)kMinimumUserStamp),
+fTime(0),
+fLenient(TRUE),
+fZone(NULL),
+fRepeatedWallTime(UCAL_WALLTIME_LAST),
+fSkippedWallTime(UCAL_WALLTIME_LAST)
+{
+ validLocale[0] = 0;
+ actualLocale[0] = 0;
+ if (U_FAILURE(success)) {
+ return;
+ }
if(zone == 0) {
#if defined (U_DEBUG_CAL)
- fprintf(stderr, "%s:%d: ILLEGAL ARG because timezone cannot be 0\n",
- __FILE__, __LINE__);
+ fprintf(stderr, "%s:%d: ILLEGAL ARG because timezone cannot be 0\n",
+ __FILE__, __LINE__);
#endif
- success = U_ILLEGAL_ARGUMENT_ERROR;
- return;
+ success = U_ILLEGAL_ARGUMENT_ERROR;
+ return;
}
- clear();
+ clear();
fZone = zone;
-
- setWeekCountData(aLocale, NULL, success);
+ setWeekData(aLocale, NULL, success);
}
// -------------------------------------
Calendar::Calendar(const TimeZone& zone, const Locale& aLocale, UErrorCode& success)
: UObject(),
- fIsTimeSet(FALSE),
- fAreFieldsSet(FALSE),
- fAreAllFieldsSet(FALSE),
- fAreFieldsVirtuallySet(FALSE),
- fNextStamp((int32_t)kMinimumUserStamp),
- fTime(0),
- fLenient(TRUE),
- fZone(0)
-{
+fIsTimeSet(FALSE),
+fAreFieldsSet(FALSE),
+fAreAllFieldsSet(FALSE),
+fAreFieldsVirtuallySet(FALSE),
+fNextStamp((int32_t)kMinimumUserStamp),
+fTime(0),
+fLenient(TRUE),
+fZone(NULL),
+fRepeatedWallTime(UCAL_WALLTIME_LAST),
+fSkippedWallTime(UCAL_WALLTIME_LAST)
+{
+ validLocale[0] = 0;
+ actualLocale[0] = 0;
+ if (U_FAILURE(success)) {
+ return;
+ }
clear();
fZone = zone.clone();
- setWeekCountData(aLocale, NULL, success);
+ if (fZone == NULL) {
+ success = U_MEMORY_ALLOCATION_ERROR;
+ }
+ setWeekData(aLocale, NULL, success);
}
// -------------------------------------
Calendar::Calendar(const Calendar &source)
: UObject(source)
{
- fZone = 0;
+ fZone = NULL;
*this = source;
}
fAreFieldsSet = right.fAreFieldsSet;
fAreFieldsVirtuallySet = right.fAreFieldsVirtuallySet;
fLenient = right.fLenient;
+ fRepeatedWallTime = right.fRepeatedWallTime;
+ fSkippedWallTime = right.fSkippedWallTime;
delete fZone;
- fZone = right.fZone->clone();
+ fZone = NULL;
+ if (right.fZone != NULL) {
+ fZone = right.fZone->clone();
+ }
fFirstDayOfWeek = right.fFirstDayOfWeek;
fMinimalDaysInFirstWeek = right.fMinimalDaysInFirstWeek;
+ fWeekendOnset = right.fWeekendOnset;
+ fWeekendOnsetMillis = right.fWeekendOnsetMillis;
+ fWeekendCease = right.fWeekendCease;
+ fWeekendCeaseMillis = right.fWeekendCeaseMillis;
fNextStamp = right.fNextStamp;
+ uprv_strncpy(validLocale, right.validLocale, sizeof(validLocale));
+ uprv_strncpy(actualLocale, right.actualLocale, sizeof(actualLocale));
+ validLocale[sizeof(validLocale)-1] = 0;
+ actualLocale[sizeof(validLocale)-1] = 0;
}
-
+
return *this;
}
Calendar* U_EXPORT2
Calendar::createInstance(UErrorCode& success)
{
- return createInstance(TimeZone::createDefault(), Locale::getDefault(), success);
+ return createInstance(TimeZone::createDefault(), Locale::getDefault(), success);
}
// -------------------------------------
Calendar* U_EXPORT2
Calendar::createInstance(const TimeZone& zone, UErrorCode& success)
{
- return createInstance(zone, Locale::getDefault(), success);
+ return createInstance(zone, Locale::getDefault(), success);
}
// -------------------------------------
Calendar* U_EXPORT2
Calendar::createInstance(const Locale& aLocale, UErrorCode& success)
{
- return createInstance(TimeZone::createDefault(), aLocale, success);
+ return createInstance(TimeZone::createDefault(), aLocale, success);
}
-// ------------------------------------- Adopting
+// ------------------------------------- Adopting
// Note: this is the bottleneck that actually calls the service routines.
-Calendar* U_EXPORT2
-Calendar::createInstance(TimeZone* zone, const Locale& aLocale, UErrorCode& success)
-{
+Calendar * U_EXPORT2
+Calendar::makeInstance(const Locale& aLocale, UErrorCode& success) {
+ if (U_FAILURE(success)) {
+ return NULL;
+ }
+
Locale actualLoc;
- UObject* u;
+ UObject* u = NULL;
+
#if !UCONFIG_NO_SERVICE
if (isCalendarServiceUsed()) {
u = getCalendarService(success)->get(aLocale, LocaleKey::KIND_ANY, &actualLoc, success);
else
#endif
{
- UErrorCode feErr;
- char calLocaleType[ULOC_FULLNAME_CAPACITY];
- calLocaleType[0] = 0; // NULL terminate
- int32_t keywordCapacity = aLocale.getKeywordValue("calendar", calLocaleType, sizeof(calLocaleType)-1, success);
- if (keywordCapacity == 0) {
- char funcEquiv[ULOC_FULLNAME_CAPACITY];
-
- feErr = success;
-
- // fetch default calendar id
- ures_getFunctionalEquivalent(funcEquiv, sizeof(funcEquiv)-1,
- NULL, "calendar", "calendar",
- aLocale.getName(),
- NULL, FALSE, &feErr);
- keywordCapacity = uloc_getKeywordValue(funcEquiv, "calendar", calLocaleType,
- sizeof(calLocaleType)-1, &feErr); // This can fail if there is no data.
- // Don't want to stop calendar construction just because we couldn't get this type.
- if (keywordCapacity == 0 || U_FAILURE(feErr)) {
- // no calendar type. Default to nothing.
- calLocaleType[0] = 0;
- }
-#ifdef U_DEBUG_CALSVC
- fprintf(stderr, " getFunctionalEquivalent calendar=%s [%s]\n", keyword, u_errorName(status));
-#endif
- }
-#ifdef U_DEBUG_CALSVC
- else { fprintf(stderr, " explicit calendar=%s\n", keyword); }
-#endif
- u = createStandardCalendar(calLocaleType, aLocale, success);
+ u = createStandardCalendar(getCalendarTypeForLocale(aLocale.getName()), aLocale, success);
}
Calendar* c = NULL;
- if(U_FAILURE(success) || !u) {
- delete zone;
- if(U_SUCCESS(success)) { // Propagate some kind of err
- success = U_INTERNAL_PROGRAM_ERROR;
+ if(U_FAILURE(success) || !u) {
+ if(U_SUCCESS(success)) { // Propagate some kind of err
+ success = U_INTERNAL_PROGRAM_ERROR;
+ }
+ return NULL;
}
- return NULL;
- }
#if !UCONFIG_NO_SERVICE
- if(u->getDynamicClassID() == UnicodeString::getStaticClassID()) {
- // It's a unicode string telling us what type of calendar to load ("gregorian", etc)
- const UnicodeString& str = *(UnicodeString*)u;
-
- // Create a Locale over this string
- Locale l("");
- LocaleUtility::initLocaleFromName(str, l);
+ const UnicodeString* str = dynamic_cast<const UnicodeString*>(u);
+ if(str != NULL) {
+ // It's a unicode string telling us what type of calendar to load ("gregorian", etc)
+ // Create a Locale over this string
+ Locale l("");
+ LocaleUtility::initLocaleFromName(*str, l);
#ifdef U_DEBUG_CALSVC
- fprintf(stderr, "Calendar::createInstance(%s), looking up [%s]\n", aLocale.getName(), l.getName());
+ fprintf(stderr, "Calendar::createInstance(%s), looking up [%s]\n", aLocale.getName(), l.getName());
#endif
- Locale actualLoc2;
- delete u;
- u = NULL;
+ Locale actualLoc2;
+ delete u;
+ u = NULL;
- // Don't overwrite actualLoc, since the actual loc from this call
- // may be something like "@calendar=gregorian" -- TODO investigate
- // further...
- c = (Calendar*)getCalendarService(success)->get(l, LocaleKey::KIND_ANY, &actualLoc2, success);
+ // Don't overwrite actualLoc, since the actual loc from this call
+ // may be something like "@calendar=gregorian" -- TODO investigate
+ // further...
+ c = (Calendar*)getCalendarService(success)->get(l, LocaleKey::KIND_ANY, &actualLoc2, success);
- if(U_FAILURE(success) || !c) {
- delete zone;
- if(U_SUCCESS(success)) {
- success = U_INTERNAL_PROGRAM_ERROR; // Propagate some err
- }
- return NULL;
- }
-
- if(c->getDynamicClassID() == UnicodeString::getStaticClassID()) {
- // recursed! Second lookup returned a UnicodeString.
- // Perhaps DefaultCalendar{} was set to another locale.
+ if(U_FAILURE(success) || !c) {
+ if(U_SUCCESS(success)) {
+ success = U_INTERNAL_PROGRAM_ERROR; // Propagate some err
+ }
+ return NULL;
+ }
+
+ str = dynamic_cast<const UnicodeString*>(c);
+ if(str != NULL) {
+ // recursed! Second lookup returned a UnicodeString.
+ // Perhaps DefaultCalendar{} was set to another locale.
#ifdef U_DEBUG_CALSVC
- char tmp[200];
- const UnicodeString& str = *(UnicodeString*)c;
- // Extract a char* out of it..
- int32_t len = str.length();
- int32_t actLen = sizeof(tmp)-1;
- if(len > actLen) {
- len = actLen;
- }
- str.extract(0,len,tmp);
- tmp[len]=0;
+ char tmp[200];
+ // Extract a char* out of it..
+ int32_t len = str->length();
+ int32_t actLen = sizeof(tmp)-1;
+ if(len > actLen) {
+ len = actLen;
+ }
+ str->extract(0,len,tmp);
+ tmp[len]=0;
- fprintf(stderr, "err - recursed, 2nd lookup was unistring %s\n", tmp);
+ fprintf(stderr, "err - recursed, 2nd lookup was unistring %s\n", tmp);
#endif
- success = U_MISSING_RESOURCE_ERROR; // requested a calendar type which could NOT be found.
- delete c;
- delete zone;
- return NULL;
- }
+ success = U_MISSING_RESOURCE_ERROR; // requested a calendar type which could NOT be found.
+ delete c;
+ return NULL;
+ }
#ifdef U_DEBUG_CALSVC
- fprintf(stderr, "%p: setting week count data to locale %s, actual locale %s\n", c, (const char*)aLocale.getName(), (const char *)actualLoc.getName());
+ fprintf(stderr, "%p: setting week count data to locale %s, actual locale %s\n", c, (const char*)aLocale.getName(), (const char *)actualLoc.getName());
#endif
- c->setWeekCountData(aLocale, c->getType(), success); // set the correct locale (this was an indirected calendar)
- }
- else
+ c->setWeekData(aLocale, c->getType(), success); // set the correct locale (this was an indirected calendar)
+
+ char keyword[ULOC_FULLNAME_CAPACITY];
+ UErrorCode tmpStatus = U_ZERO_ERROR;
+ l.getKeywordValue("calendar", keyword, ULOC_FULLNAME_CAPACITY, tmpStatus);
+ if (U_SUCCESS(tmpStatus) && uprv_strcmp(keyword, "iso8601") == 0) {
+ c->setFirstDayOfWeek(UCAL_MONDAY);
+ c->setMinimalDaysInFirstWeek(4);
+ }
+ }
+ else
#endif /* UCONFIG_NO_SERVICE */
- {
- // a calendar was returned - we assume the factory did the right thing.
- c = (Calendar*)u;
- }
+ {
+ // a calendar was returned - we assume the factory did the right thing.
+ c = (Calendar*)u;
+ }
+
+ return c;
+}
+
+Calendar* U_EXPORT2
+Calendar::createInstance(TimeZone* zone, const Locale& aLocale, UErrorCode& success)
+{
+ LocalPointer<TimeZone> zonePtr(zone);
+ const SharedCalendar *shared = NULL;
+ UnifiedCache::getByLocale(aLocale, shared, success);
+ if (U_FAILURE(success)) {
+ return NULL;
+ }
+ Calendar *c = (*shared)->clone();
+ shared->removeRef();
+ if (c == NULL) {
+ success = U_MEMORY_ALLOCATION_ERROR;
+ return NULL;
+ }
+
+ // Now, reset calendar to default state:
+ c->adoptTimeZone(zonePtr.orphan()); // Set the correct time zone
+ c->setTimeInMillis(getNow(), success); // let the new calendar have the current time.
- // Now, reset calendar to default state:
- c->adoptTimeZone(zone); // Set the correct time zone
- c->setTimeInMillis(getNow(), success); // let the new calendar have the current time.
-
- return c;
+ return c;
}
// -------------------------------------
Calendar* U_EXPORT2
Calendar::createInstance(const TimeZone& zone, const Locale& aLocale, UErrorCode& success)
{
- Calendar* c = createInstance(aLocale, success);
- if(U_SUCCESS(success) && c) {
- c->setTimeZone(zone);
- }
- return c;
+ Calendar* c = createInstance(aLocale, success);
+ if(U_SUCCESS(success) && c) {
+ c->setTimeZone(zone);
+ }
+ return c;
}
// -------------------------------------
+void U_EXPORT2
+Calendar::getCalendarTypeFromLocale(
+ const Locale &aLocale,
+ char *typeBuffer,
+ int32_t typeBufferSize,
+ UErrorCode &success) {
+ const SharedCalendar *shared = NULL;
+ UnifiedCache::getByLocale(aLocale, shared, success);
+ if (U_FAILURE(success)) {
+ return;
+ }
+ uprv_strncpy(typeBuffer, (*shared)->getType(), typeBufferSize);
+ shared->removeRef();
+ if (typeBuffer[typeBufferSize - 1]) {
+ success = U_BUFFER_OVERFLOW_ERROR;
+ }
+}
+
UBool
Calendar::operator==(const Calendar& that) const
{
U_SUCCESS(status);
}
-UBool
+UBool
Calendar::isEquivalentTo(const Calendar& other) const
{
- return getDynamicClassID() == other.getDynamicClassID() &&
+ return typeid(*this) == typeid(other) &&
fLenient == other.fLenient &&
+ fRepeatedWallTime == other.fRepeatedWallTime &&
+ fSkippedWallTime == other.fSkippedWallTime &&
fFirstDayOfWeek == other.fFirstDayOfWeek &&
fMinimalDaysInFirstWeek == other.fMinimalDaysInFirstWeek &&
+ fWeekendOnset == other.fWeekendOnset &&
+ fWeekendOnsetMillis == other.fWeekendOnsetMillis &&
+ fWeekendCease == other.fWeekendCease &&
+ fWeekendCeaseMillis == other.fWeekendCeaseMillis &&
*fZone == *other.fZone;
}
Calendar::equals(const Calendar& when, UErrorCode& status) const
{
return (this == &when ||
- getTime(status) == when.getTime(status));
+ getTime(status) == when.getTime(status));
}
// -------------------------------------
Calendar::before(const Calendar& when, UErrorCode& status) const
{
return (this != &when &&
- getTimeInMillis(status) < when.getTimeInMillis(status));
+ getTimeInMillis(status) < when.getTimeInMillis(status));
}
// -------------------------------------
Calendar::after(const Calendar& when, UErrorCode& status) const
{
return (this != &when &&
- getTimeInMillis(status) > when.getTimeInMillis(status));
+ getTimeInMillis(status) > when.getTimeInMillis(status));
}
// -------------------------------------
// -------------------------------------
+StringEnumeration* U_EXPORT2
+Calendar::getKeywordValuesForLocale(const char* key,
+ const Locale& locale, UBool commonlyUsed, UErrorCode& status)
+{
+ // This is a wrapper over ucal_getKeywordValuesForLocale
+ UEnumeration *uenum = ucal_getKeywordValuesForLocale(key, locale.getName(),
+ commonlyUsed, &status);
+ if (U_FAILURE(status)) {
+ uenum_close(uenum);
+ return NULL;
+ }
+ return new UStringEnumeration(uenum);
+}
+
+// -------------------------------------
+
UDate U_EXPORT2
Calendar::getNow()
{
// -------------------------------------
/**
- * Gets this Calendar's current time as a long.
- * @return the current time as UTC milliseconds from the epoch.
- */
-double
+* Gets this Calendar's current time as a long.
+* @return the current time as UTC milliseconds from the epoch.
+*/
+double
Calendar::getTimeInMillis(UErrorCode& status) const
{
- if(U_FAILURE(status))
+ if(U_FAILURE(status))
return 0.0;
- if ( ! fIsTimeSet)
+ if ( ! fIsTimeSet)
((Calendar*)this)->updateTime(status);
/* Test for buffer overflows */
// -------------------------------------
/**
- * Sets this Calendar's current time from the given long value.
- * @param date the new time in UTC milliseconds from the epoch.
- */
-void
+* Sets this Calendar's current time from the given long value.
+* A status of U_ILLEGAL_ARGUMENT_ERROR is set when millis is
+* outside the range permitted by a Calendar object when not in lenient mode.
+* when in lenient mode the out of range values are pinned to their respective min/max.
+* @param date the new time in UTC milliseconds from the epoch.
+*/
+void
Calendar::setTimeInMillis( double millis, UErrorCode& status ) {
- if(U_FAILURE(status))
+ if(U_FAILURE(status))
return;
if (millis > MAX_MILLIS) {
- millis = MAX_MILLIS;
+ if(isLenient()) {
+ millis = MAX_MILLIS;
+ } else {
+ status = U_ILLEGAL_ARGUMENT_ERROR;
+ return;
+ }
} else if (millis < MIN_MILLIS) {
- millis = MIN_MILLIS;
+ if(isLenient()) {
+ millis = MIN_MILLIS;
+ } else {
+ status = U_ILLEGAL_ARGUMENT_ERROR;
+ return;
+ }
}
fTime = millis;
fAreFieldsSet = fAreAllFieldsSet = FALSE;
fIsTimeSet = fAreFieldsVirtuallySet = TRUE;
+
+ for (int32_t i=0; i<UCAL_FIELD_COUNT; ++i) {
+ fFields[i] = 0;
+ fStamp[i] = kUnset;
+ fIsSet[i] = FALSE;
+ }
+
+
}
// -------------------------------------
computeFields(ec);
}
fFields[field] = value;
+ /* Ensure that the fNextStamp value doesn't go pass max value for int32_t */
+ if (fNextStamp == STAMP_MAX) {
+ recalculateStamp();
+ }
fStamp[field] = fNextStamp++;
fIsSet[field] = TRUE; // Remove later
fIsTimeSet = fAreFieldsSet = fAreFieldsVirtuallySet = FALSE;
set(UCAL_SECOND, second);
}
+// -------------------------------------
+// For now the full getRelatedYear implementation is here;
+// per #10752 move the non-default implementation to subclasses
+// (default implementation will do no year adjustment)
+
+static int32_t gregoYearFromIslamicStart(int32_t year) {
+ // ad hoc conversion, improve under #10752
+ // rough est for now, ok for grego 1846-2138,
+ // otherwise occasionally wrong (for 3% of years)
+ int cycle, offset, shift = 0;
+ if (year >= 1397) {
+ cycle = (year - 1397) / 67;
+ offset = (year - 1397) % 67;
+ shift = 2*cycle + ((offset >= 33)? 1: 0);
+ } else {
+ cycle = (year - 1396) / 67 - 1;
+ offset = -(year - 1396) % 67;
+ shift = 2*cycle + ((offset <= 33)? 1: 0);
+ }
+ return year + 579 - shift;
+}
+
+int32_t Calendar::getRelatedYear(UErrorCode &status) const
+{
+ if (U_FAILURE(status)) {
+ return 0;
+ }
+ int32_t year = get(UCAL_EXTENDED_YEAR, status);
+ if (U_FAILURE(status)) {
+ return 0;
+ }
+ // modify for calendar type
+ ECalType type = getCalendarType(getType());
+ switch (type) {
+ case CALTYPE_PERSIAN:
+ year += 622; break;
+ case CALTYPE_HEBREW:
+ year -= 3760; break;
+ case CALTYPE_CHINESE:
+ year -= 2637; break;
+ case CALTYPE_INDIAN:
+ year += 79; break;
+ case CALTYPE_COPTIC:
+ year += 284; break;
+ case CALTYPE_ETHIOPIC:
+ year += 8; break;
+ case CALTYPE_ETHIOPIC_AMETE_ALEM:
+ year -=5492; break;
+ case CALTYPE_DANGI:
+ year -= 2333; break;
+ case CALTYPE_ISLAMIC_CIVIL:
+ case CALTYPE_ISLAMIC:
+ case CALTYPE_ISLAMIC_UMALQURA:
+ case CALTYPE_ISLAMIC_TBLA:
+ case CALTYPE_ISLAMIC_RGSA:
+ year = gregoYearFromIslamicStart(year); break;
+ default:
+ // CALTYPE_GREGORIAN
+ // CALTYPE_JAPANESE
+ // CALTYPE_BUDDHIST
+ // CALTYPE_ROC
+ // CALTYPE_ISO8601
+ // do nothing, EXTENDED_YEAR same as Gregorian
+ break;
+ }
+ return year;
+}
+
+// -------------------------------------
+// For now the full setRelatedYear implementation is here;
+// per #10752 move the non-default implementation to subclasses
+// (default implementation will do no year adjustment)
+
+static int32_t firstIslamicStartYearFromGrego(int32_t year) {
+ // ad hoc conversion, improve under #10752
+ // rough est for now, ok for grego 1846-2138,
+ // otherwise occasionally wrong (for 3% of years)
+ int cycle, offset, shift = 0;
+ if (year >= 1977) {
+ cycle = (year - 1977) / 65;
+ offset = (year - 1977) % 65;
+ shift = 2*cycle + ((offset >= 32)? 1: 0);
+ } else {
+ cycle = (year - 1976) / 65 - 1;
+ offset = -(year - 1976) % 65;
+ shift = 2*cycle + ((offset <= 32)? 1: 0);
+ }
+ return year - 579 + shift;
+}
+void Calendar::setRelatedYear(int32_t year)
+{
+ // modify for calendar type
+ ECalType type = getCalendarType(getType());
+ switch (type) {
+ case CALTYPE_PERSIAN:
+ year -= 622; break;
+ case CALTYPE_HEBREW:
+ year += 3760; break;
+ case CALTYPE_CHINESE:
+ year += 2637; break;
+ case CALTYPE_INDIAN:
+ year -= 79; break;
+ case CALTYPE_COPTIC:
+ year -= 284; break;
+ case CALTYPE_ETHIOPIC:
+ year -= 8; break;
+ case CALTYPE_ETHIOPIC_AMETE_ALEM:
+ year +=5492; break;
+ case CALTYPE_DANGI:
+ year += 2333; break;
+ case CALTYPE_ISLAMIC_CIVIL:
+ case CALTYPE_ISLAMIC:
+ case CALTYPE_ISLAMIC_UMALQURA:
+ case CALTYPE_ISLAMIC_TBLA:
+ case CALTYPE_ISLAMIC_RGSA:
+ year = firstIslamicStartYearFromGrego(year); break;
+ default:
+ // CALTYPE_GREGORIAN
+ // CALTYPE_JAPANESE
+ // CALTYPE_BUDDHIST
+ // CALTYPE_ROC
+ // CALTYPE_ISO8601
+ // do nothing, EXTENDED_YEAR same as Gregorian
+ break;
+ }
+ // set extended year
+ set(UCAL_EXTENDED_YEAR, year);
+}
+
// -------------------------------------
void
Calendar::clear()
{
+ // special behavior for chinese/dangi to set to beginning of current era;
+ // need to do here and not in ChineseCalendar since clear is not virtual.
+ int32_t eraNow = 0;
+ if (dynamic_cast<const ChineseCalendar*>(this)!=NULL) {
+ UErrorCode status = U_ZERO_ERROR;
+ setTimeInMillis(getNow(), status);
+ eraNow = get(UCAL_ERA, status); // sets 0 if error
+ }
+
for (int32_t i=0; i<UCAL_FIELD_COUNT; ++i) {
fFields[i] = 0; // Must do this; other code depends on it
fStamp[i] = kUnset;
}
fIsTimeSet = fAreFieldsSet = fAreAllFieldsSet = fAreFieldsVirtuallySet = FALSE;
// fTime is not 'cleared' - may be used if no fields are set.
+ if (eraNow > 0) {
+ set(UCAL_ERA, eraNow);
+ }
}
// -------------------------------------
int32_t Calendar::newestStamp(UCalendarDateFields first, UCalendarDateFields last, int32_t bestStampSoFar) const
{
- int32_t bestStamp = bestStampSoFar;
- for (int32_t i=(int32_t)first; i<=(int32_t)last; ++i) {
- if (fStamp[i] > bestStamp) {
- bestStamp = fStamp[i];
+ int32_t bestStamp = bestStampSoFar;
+ for (int32_t i=(int32_t)first; i<=(int32_t)last; ++i) {
+ if (fStamp[i] > bestStamp) {
+ bestStamp = fStamp[i];
+ }
}
- }
- return bestStamp;
+ return bestStamp;
}
}
}
- //-------------------------------------------------------------------------
- // Protected utility methods for use by subclasses. These are very handy
- // for implementing add, roll, and computeFields.
- //-------------------------------------------------------------------------
+//-------------------------------------------------------------------------
+// Protected utility methods for use by subclasses. These are very handy
+// for implementing add, roll, and computeFields.
+//-------------------------------------------------------------------------
- /**
- * Adjust the specified field so that it is within
- * the allowable range for the date to which this calendar is set.
- * For example, in a Gregorian calendar pinning the {@link #DAY_OF_MONTH DAY_OF_MONTH}
- * field for a calendar set to April 31 would cause it to be set
- * to April 30.
- * <b>Subclassing:</b>
- * <br>
- * This utility method is intended for use by subclasses that need to implement
- * their own overrides of {@link #roll roll} and {@link #add add}.
- * <b>Note:</b>
- * <code>pinField</code> is implemented in terms of
- * {@link #getActualMinimum getActualMinimum}
- * and {@link #getActualMaximum getActualMaximum}. If either of those methods uses
- * a slow, iterative algorithm for a particular field, it would be
- * unwise to attempt to call <code>pinField</code> for that field. If you
- * really do need to do so, you should override this method to do
- * something more efficient for that field.
- * @param field The calendar field whose value should be pinned.
- *
- * @see #getActualMinimum
- * @see #getActualMaximum
- * @stable ICU 2.0
- */
+/**
+* Adjust the specified field so that it is within
+* the allowable range for the date to which this calendar is set.
+* For example, in a Gregorian calendar pinning the {@link #DAY_OF_MONTH DAY_OF_MONTH}
+* field for a calendar set to April 31 would cause it to be set
+* to April 30.
+* <p>
+* <b>Subclassing:</b>
+* <br>
+* This utility method is intended for use by subclasses that need to implement
+* their own overrides of {@link #roll roll} and {@link #add add}.
+* <p>
+* <b>Note:</b>
+* <code>pinField</code> is implemented in terms of
+* {@link #getActualMinimum getActualMinimum}
+* and {@link #getActualMaximum getActualMaximum}. If either of those methods uses
+* a slow, iterative algorithm for a particular field, it would be
+* unwise to attempt to call <code>pinField</code> for that field. If you
+* really do need to do so, you should override this method to do
+* something more efficient for that field.
+* <p>
+* @param field The calendar field whose value should be pinned.
+*
+* @see #getActualMinimum
+* @see #getActualMaximum
+* @stable ICU 2.0
+*/
void Calendar::pinField(UCalendarDateFields field, UErrorCode& status) {
- int32_t max = getActualMaximum(field, status);
- int32_t min = getActualMinimum(field, status);
-
- if (fFields[field] > max) {
- set(field, max);
- } else if (fFields[field] < min) {
- set(field, min);
- }
+ int32_t max = getActualMaximum(field, status);
+ int32_t min = getActualMinimum(field, status);
+
+ if (fFields[field] > max) {
+ set(field, max);
+ } else if (fFields[field] < min) {
+ set(field, min);
+ }
}
void Calendar::computeFields(UErrorCode &ec)
{
if (U_FAILURE(ec)) {
- return;
- }
- // Compute local wall millis
- double localMillis = internalGetTime();
- int32_t rawOffset, dstOffset;
- getTimeZone().getOffset(localMillis, FALSE, rawOffset, dstOffset, ec);
- localMillis += rawOffset;
-
- // Mark fields as set. Do this before calling handleComputeFields().
- uint32_t mask = //fInternalSetMask;
- (1 << ERA) |
- (1 << UCAL_YEAR) |
- (1 << UCAL_MONTH) |
- (1 << UCAL_DAY_OF_MONTH) | // = UCAL_DATE
- (1 << UCAL_DAY_OF_YEAR) |
- (1 << UCAL_EXTENDED_YEAR);
-
- for (int32_t i=0; i<UCAL_FIELD_COUNT; ++i) {
- if ((mask & 1) == 0) {
- fStamp[i] = kInternallySet;
- fIsSet[i] = TRUE; // Remove later
- } else {
- fStamp[i] = kUnset;
- fIsSet[i] = FALSE; // Remove later
- }
- mask >>= 1;
- }
-
- // We used to check for and correct extreme millis values (near
- // Long.MIN_VALUE or Long.MAX_VALUE) here. Such values would cause
- // overflows from positive to negative (or vice versa) and had to
- // be manually tweaked. We no longer need to do this because we
- // have limited the range of supported dates to those that have a
- // Julian day that fits into an int. This allows us to implement a
- // JULIAN_DAY field and also removes some inelegant code. - Liu
- // 11/6/00
-
- int32_t days = (int32_t)Math::floorDivide(localMillis, (double)kOneDay);
-
- internalSet(UCAL_JULIAN_DAY,days + kEpochStartAsJulianDay);
-
-#if defined (U_DEBUG_CAL)
- //fprintf(stderr, "%s:%d- Hmm! Jules @ %d, as per %.0lf millis\n",
- //__FILE__, __LINE__, fFields[UCAL_JULIAN_DAY], localMillis);
-#endif
-
- // In some cases we will have to call this method again below to
- // adjust for DST pushing us into the next Julian day.
- computeGregorianAndDOWFields(fFields[UCAL_JULIAN_DAY], ec);
-
- int32_t millisInDay = (int32_t) (localMillis - (days * kOneDay));
- if (millisInDay < 0) millisInDay += (int32_t)kOneDay;
-
- // Adjust our millisInDay for DST. dstOffset will be zero if DST
- // is not in effect at this time of year, or if our zone does not
- // use DST.
- millisInDay += dstOffset;
-
- // If DST has pushed us into the next day, we must call
- // computeGregorianAndDOWFields() again. This happens in DST between
- // 12:00 am and 1:00 am every day. The first call to
- // computeGregorianAndDOWFields() will give the wrong day, since the
- // Standard time is in the previous day.
- if (millisInDay >= (int32_t)kOneDay) {
- millisInDay -= (int32_t)kOneDay; // ASSUME dstOffset < 24:00
-
- // We don't worry about overflow of JULIAN_DAY because the
- // allowable range of JULIAN_DAY has slop at the ends (that is,
- // the max is less that 0x7FFFFFFF and the min is greater than
- // -0x80000000).
- computeGregorianAndDOWFields(++fFields[UCAL_JULIAN_DAY], ec);
- }
-
- // Call framework method to have subclass compute its fields.
- // These must include, at a minimum, MONTH, DAY_OF_MONTH,
- // EXTENDED_YEAR, YEAR, DAY_OF_YEAR. This method will call internalSet(),
- // which will update stamp[].
- handleComputeFields(fFields[UCAL_JULIAN_DAY], ec);
-
- // Compute week-related fields, based on the subclass-computed
- // fields computed by handleComputeFields().
- computeWeekFields(ec);
-
- // Compute time-related fields. These are indepent of the date and
- // of the subclass algorithm. They depend only on the local zone
- // wall milliseconds in day.
- fFields[UCAL_MILLISECONDS_IN_DAY] = millisInDay;
- fFields[UCAL_MILLISECOND] = millisInDay % 1000;
- millisInDay /= 1000;
- fFields[UCAL_SECOND] = millisInDay % 60;
- millisInDay /= 60;
- fFields[UCAL_MINUTE] = millisInDay % 60;
- millisInDay /= 60;
- fFields[UCAL_HOUR_OF_DAY] = millisInDay;
- fFields[UCAL_AM_PM] = millisInDay / 12; // Assume AM == 0
- fFields[UCAL_HOUR] = millisInDay % 12;
- fFields[UCAL_ZONE_OFFSET] = rawOffset;
- fFields[UCAL_DST_OFFSET] = dstOffset;
-}
+ return;
+ }
+ // Compute local wall millis
+ double localMillis = internalGetTime();
+ int32_t rawOffset, dstOffset;
+ getTimeZone().getOffset(localMillis, FALSE, rawOffset, dstOffset, ec);
+ localMillis += (rawOffset + dstOffset);
+
+ // Mark fields as set. Do this before calling handleComputeFields().
+ uint32_t mask = //fInternalSetMask;
+ (1 << UCAL_ERA) |
+ (1 << UCAL_YEAR) |
+ (1 << UCAL_MONTH) |
+ (1 << UCAL_DAY_OF_MONTH) | // = UCAL_DATE
+ (1 << UCAL_DAY_OF_YEAR) |
+ (1 << UCAL_EXTENDED_YEAR);
+
+ for (int32_t i=0; i<UCAL_FIELD_COUNT; ++i) {
+ if ((mask & 1) == 0) {
+ fStamp[i] = kInternallySet;
+ fIsSet[i] = TRUE; // Remove later
+ } else {
+ fStamp[i] = kUnset;
+ fIsSet[i] = FALSE; // Remove later
+ }
+ mask >>= 1;
+ }
+
+ // We used to check for and correct extreme millis values (near
+ // Long.MIN_VALUE or Long.MAX_VALUE) here. Such values would cause
+ // overflows from positive to negative (or vice versa) and had to
+ // be manually tweaked. We no longer need to do this because we
+ // have limited the range of supported dates to those that have a
+ // Julian day that fits into an int. This allows us to implement a
+ // JULIAN_DAY field and also removes some inelegant code. - Liu
+ // 11/6/00
+
+ int32_t days = (int32_t)ClockMath::floorDivide(localMillis, (double)kOneDay);
+
+ internalSet(UCAL_JULIAN_DAY,days + kEpochStartAsJulianDay);
+
+#if defined (U_DEBUG_CAL)
+ //fprintf(stderr, "%s:%d- Hmm! Jules @ %d, as per %.0lf millis\n",
+ //__FILE__, __LINE__, fFields[UCAL_JULIAN_DAY], localMillis);
+#endif
+
+ computeGregorianAndDOWFields(fFields[UCAL_JULIAN_DAY], ec);
+
+ // Call framework method to have subclass compute its fields.
+ // These must include, at a minimum, MONTH, DAY_OF_MONTH,
+ // EXTENDED_YEAR, YEAR, DAY_OF_YEAR. This method will call internalSet(),
+ // which will update stamp[].
+ handleComputeFields(fFields[UCAL_JULIAN_DAY], ec);
+
+ // Compute week-related fields, based on the subclass-computed
+ // fields computed by handleComputeFields().
+ computeWeekFields(ec);
+
+ // Compute time-related fields. These are indepent of the date and
+ // of the subclass algorithm. They depend only on the local zone
+ // wall milliseconds in day.
+ int32_t millisInDay = (int32_t) (localMillis - (days * kOneDay));
+ fFields[UCAL_MILLISECONDS_IN_DAY] = millisInDay;
+ fFields[UCAL_MILLISECOND] = millisInDay % 1000;
+ millisInDay /= 1000;
+ fFields[UCAL_SECOND] = millisInDay % 60;
+ millisInDay /= 60;
+ fFields[UCAL_MINUTE] = millisInDay % 60;
+ millisInDay /= 60;
+ fFields[UCAL_HOUR_OF_DAY] = millisInDay;
+ fFields[UCAL_AM_PM] = millisInDay / 12; // Assume AM == 0
+ fFields[UCAL_HOUR] = millisInDay % 12;
+ fFields[UCAL_ZONE_OFFSET] = rawOffset;
+ fFields[UCAL_DST_OFFSET] = dstOffset;
+}
uint8_t Calendar::julianDayToDayOfWeek(double julian)
{
- // If julian is negative, then julian%7 will be negative, so we adjust
- // accordingly. We add 1 because Julian day 0 is Monday.
- int8_t dayOfWeek = (int8_t) uprv_fmod(julian + 1, 7);
+ // If julian is negative, then julian%7 will be negative, so we adjust
+ // accordingly. We add 1 because Julian day 0 is Monday.
+ int8_t dayOfWeek = (int8_t) uprv_fmod(julian + 1, 7);
- uint8_t result = (uint8_t)(dayOfWeek + ((dayOfWeek < 0) ? (7+UCAL_SUNDAY ) : UCAL_SUNDAY));
- return result;
+ uint8_t result = (uint8_t)(dayOfWeek + ((dayOfWeek < 0) ? (7+UCAL_SUNDAY ) : UCAL_SUNDAY));
+ return result;
}
/**
- * Compute the Gregorian calendar year, month, and day of month from
- * the given Julian day. These values are not stored in fields, but in
- * member variables gregorianXxx. Also compute the DAY_OF_WEEK and
- * DOW_LOCAL fields.
- */
+* Compute the Gregorian calendar year, month, and day of month from
+* the given Julian day. These values are not stored in fields, but in
+* member variables gregorianXxx. Also compute the DAY_OF_WEEK and
+* DOW_LOCAL fields.
+*/
void Calendar::computeGregorianAndDOWFields(int32_t julianDay, UErrorCode &ec)
{
- computeGregorianFields(julianDay, ec);
-
- // Compute day of week: JD 0 = Monday
- int32_t dow = julianDayToDayOfWeek(julianDay);
- internalSet(UCAL_DAY_OF_WEEK,dow);
+ computeGregorianFields(julianDay, ec);
- // Calculate 1-based localized day of week
- int32_t dowLocal = dow - getFirstDayOfWeek() + 1;
- if (dowLocal < 1) {
- dowLocal += 7;
- }
- internalSet(UCAL_DOW_LOCAL,dowLocal);
- fFields[UCAL_DOW_LOCAL] = dowLocal;
+ // Compute day of week: JD 0 = Monday
+ int32_t dow = julianDayToDayOfWeek(julianDay);
+ internalSet(UCAL_DAY_OF_WEEK,dow);
+
+ // Calculate 1-based localized day of week
+ int32_t dowLocal = dow - getFirstDayOfWeek() + 1;
+ if (dowLocal < 1) {
+ dowLocal += 7;
+ }
+ internalSet(UCAL_DOW_LOCAL,dowLocal);
+ fFields[UCAL_DOW_LOCAL] = dowLocal;
}
/**
- * Compute the Gregorian calendar year, month, and day of month from the
- * Julian day. These values are not stored in fields, but in member
- * variables gregorianXxx. They are used for time zone computations and by
- * subclasses that are Gregorian derivatives. Subclasses may call this
- * method to perform a Gregorian calendar millis->fields computation.
- * To perform a Gregorian calendar fields->millis computation, call
- * computeGregorianMonthStart().
- * @see #computeGregorianMonthStart
- */
+* Compute the Gregorian calendar year, month, and day of month from the
+* Julian day. These values are not stored in fields, but in member
+* variables gregorianXxx. They are used for time zone computations and by
+* subclasses that are Gregorian derivatives. Subclasses may call this
+* method to perform a Gregorian calendar millis->fields computation.
+*/
void Calendar::computeGregorianFields(int32_t julianDay, UErrorCode & /* ec */) {
- int32_t gregorianDayOfWeekUnused;
- Grego::dayToFields(julianDay - kEpochStartAsJulianDay, fGregorianYear, fGregorianMonth, fGregorianDayOfMonth, gregorianDayOfWeekUnused, fGregorianDayOfYear);
+ int32_t gregorianDayOfWeekUnused;
+ Grego::dayToFields(julianDay - kEpochStartAsJulianDay, fGregorianYear, fGregorianMonth, fGregorianDayOfMonth, gregorianDayOfWeekUnused, fGregorianDayOfYear);
}
/**
- * Compute the fields WEEK_OF_YEAR, YEAR_WOY, WEEK_OF_MONTH,
- * DAY_OF_WEEK_IN_MONTH, and DOW_LOCAL from EXTENDED_YEAR, YEAR,
- * DAY_OF_WEEK, and DAY_OF_YEAR. The latter fields are computed by the
- * subclass based on the calendar system.
- *
-
* <p>The YEAR_WOY field is computed simplistically. It is equal to YEAR
- * most of the time, but at the year boundary it may be adjusted to YEAR-1
- * or YEAR+1 to reflect the overlap of a week into an adjacent year. In
- * this case, a simple increment or decrement is performed on YEAR, even
- * though this may yield an invalid YEAR value. For instance, if the YEAR
- * is part of a calendar system with an N-year cycle field CYCLE, then
- * incrementing the YEAR may involve incrementing CYCLE and setting YEAR
- * back to 0 or 1. This is not handled by this code, and in fact cannot be
- * simply handled without having subclasses define an entire parallel set of
- * fields for fields larger than or equal to a year. This additional
- * complexity is not warranted, since the intention of the YEAR_WOY field is
- * to support ISO 8601 notation, so it will typically be used with a
- * proleptic Gregorian calendar, which has no field larger than a year.
- */
+* Compute the fields WEEK_OF_YEAR, YEAR_WOY, WEEK_OF_MONTH,
+* DAY_OF_WEEK_IN_MONTH, and DOW_LOCAL from EXTENDED_YEAR, YEAR,
+* DAY_OF_WEEK, and DAY_OF_YEAR. The latter fields are computed by the
+* subclass based on the calendar system.
+*
+* <p>The YEAR_WOY field is computed simplistically. It is equal to YEAR
+* most of the time, but at the year boundary it may be adjusted to YEAR-1
+* or YEAR+1 to reflect the overlap of a week into an adjacent year. In
+* this case, a simple increment or decrement is performed on YEAR, even
+* though this may yield an invalid YEAR value. For instance, if the YEAR
+* is part of a calendar system with an N-year cycle field CYCLE, then
+* incrementing the YEAR may involve incrementing CYCLE and setting YEAR
+* back to 0 or 1. This is not handled by this code, and in fact cannot be
+* simply handled without having subclasses define an entire parallel set of
+* fields for fields larger than or equal to a year. This additional
+* complexity is not warranted, since the intention of the YEAR_WOY field is
+* to support ISO 8601 notation, so it will typically be used with a
+* proleptic Gregorian calendar, which has no field larger than a year.
+*/
void Calendar::computeWeekFields(UErrorCode &ec) {
- if(U_FAILURE(ec)) {
- return;
- }
- int32_t eyear = fFields[UCAL_EXTENDED_YEAR];
- int32_t year = fFields[UCAL_YEAR];
- int32_t dayOfWeek = fFields[UCAL_DAY_OF_WEEK];
- int32_t dayOfYear = fFields[UCAL_DAY_OF_YEAR];
-
- // WEEK_OF_YEAR start
- // Compute the week of the year. For the Gregorian calendar, valid week
- // numbers run from 1 to 52 or 53, depending on the year, the first day
- // of the week, and the minimal days in the first week. For other
- // calendars, the valid range may be different -- it depends on the year
- // length. Days at the start of the year may fall into the last week of
- // the previous year; days at the end of the year may fall into the
- // first week of the next year. ASSUME that the year length is less than
- // 7000 days.
- int32_t yearOfWeekOfYear = year;
- int32_t relDow = (dayOfWeek + 7 - getFirstDayOfWeek()) % 7; // 0..6
- int32_t relDowJan1 = (dayOfWeek - dayOfYear + 7001 - getFirstDayOfWeek()) % 7; // 0..6
- int32_t woy = (dayOfYear - 1 + relDowJan1) / 7; // 0..53
- if ((7 - relDowJan1) >= getMinimalDaysInFirstWeek()) {
- ++woy;
- }
-
- // Adjust for weeks at the year end that overlap into the previous or
- // next calendar year.
- if (woy == 0) {
- // We are the last week of the previous year.
- // Check to see if we are in the last week; if so, we need
- // to handle the case in which we are the first week of the
- // next year.
-
- int32_t prevDoy = dayOfYear + handleGetYearLength(eyear - 1);
- woy = weekNumber(prevDoy, dayOfWeek);
- yearOfWeekOfYear--;
- } else {
- int32_t lastDoy = handleGetYearLength(eyear);
- // Fast check: For it to be week 1 of the next year, the DOY
- // must be on or after L-5, where L is yearLength(), then it
- // cannot possibly be week 1 of the next year:
- // L-5 L
- // doy: 359 360 361 362 363 364 365 001
- // dow: 1 2 3 4 5 6 7
- if (dayOfYear >= (lastDoy - 5)) {
- int32_t lastRelDow = (relDow + lastDoy - dayOfYear) % 7;
- if (lastRelDow < 0) {
- lastRelDow += 7;
- }
- if (((6 - lastRelDow) >= getMinimalDaysInFirstWeek()) &&
- ((dayOfYear + 7 - relDow) > lastDoy)) {
- woy = 1;
- yearOfWeekOfYear++;
- }
+ if(U_FAILURE(ec)) {
+ return;
}
- }
- fFields[UCAL_WEEK_OF_YEAR] = woy;
- fFields[UCAL_YEAR_WOY] = yearOfWeekOfYear;
- // WEEK_OF_YEAR end
-
- int32_t dayOfMonth = fFields[UCAL_DAY_OF_MONTH];
- fFields[UCAL_WEEK_OF_MONTH] = weekNumber(dayOfMonth, dayOfWeek);
- fFields[UCAL_DAY_OF_WEEK_IN_MONTH] = (dayOfMonth-1) / 7 + 1;
+ int32_t eyear = fFields[UCAL_EXTENDED_YEAR];
+ int32_t dayOfWeek = fFields[UCAL_DAY_OF_WEEK];
+ int32_t dayOfYear = fFields[UCAL_DAY_OF_YEAR];
+
+ // WEEK_OF_YEAR start
+ // Compute the week of the year. For the Gregorian calendar, valid week
+ // numbers run from 1 to 52 or 53, depending on the year, the first day
+ // of the week, and the minimal days in the first week. For other
+ // calendars, the valid range may be different -- it depends on the year
+ // length. Days at the start of the year may fall into the last week of
+ // the previous year; days at the end of the year may fall into the
+ // first week of the next year. ASSUME that the year length is less than
+ // 7000 days.
+ int32_t yearOfWeekOfYear = eyear;
+ int32_t relDow = (dayOfWeek + 7 - getFirstDayOfWeek()) % 7; // 0..6
+ int32_t relDowJan1 = (dayOfWeek - dayOfYear + 7001 - getFirstDayOfWeek()) % 7; // 0..6
+ int32_t woy = (dayOfYear - 1 + relDowJan1) / 7; // 0..53
+ if ((7 - relDowJan1) >= getMinimalDaysInFirstWeek()) {
+ ++woy;
+ }
+
+ // Adjust for weeks at the year end that overlap into the previous or
+ // next calendar year.
+ if (woy == 0) {
+ // We are the last week of the previous year.
+ // Check to see if we are in the last week; if so, we need
+ // to handle the case in which we are the first week of the
+ // next year.
+
+ int32_t prevDoy = dayOfYear + handleGetYearLength(eyear - 1);
+ woy = weekNumber(prevDoy, dayOfWeek);
+ yearOfWeekOfYear--;
+ } else {
+ int32_t lastDoy = handleGetYearLength(eyear);
+ // Fast check: For it to be week 1 of the next year, the DOY
+ // must be on or after L-5, where L is yearLength(), then it
+ // cannot possibly be week 1 of the next year:
+ // L-5 L
+ // doy: 359 360 361 362 363 364 365 001
+ // dow: 1 2 3 4 5 6 7
+ if (dayOfYear >= (lastDoy - 5)) {
+ int32_t lastRelDow = (relDow + lastDoy - dayOfYear) % 7;
+ if (lastRelDow < 0) {
+ lastRelDow += 7;
+ }
+ if (((6 - lastRelDow) >= getMinimalDaysInFirstWeek()) &&
+ ((dayOfYear + 7 - relDow) > lastDoy)) {
+ woy = 1;
+ yearOfWeekOfYear++;
+ }
+ }
+ }
+ fFields[UCAL_WEEK_OF_YEAR] = woy;
+ fFields[UCAL_YEAR_WOY] = yearOfWeekOfYear;
+ // WEEK_OF_YEAR end
+
+ int32_t dayOfMonth = fFields[UCAL_DAY_OF_MONTH];
+ fFields[UCAL_WEEK_OF_MONTH] = weekNumber(dayOfMonth, dayOfWeek);
+ fFields[UCAL_DAY_OF_WEEK_IN_MONTH] = (dayOfMonth-1) / 7 + 1;
#if defined (U_DEBUG_CAL)
- if(fFields[UCAL_DAY_OF_WEEK_IN_MONTH]==0) fprintf(stderr, "%s:%d: DOWIM %d on %g\n",
- __FILE__, __LINE__,fFields[UCAL_DAY_OF_WEEK_IN_MONTH], fTime);
+ if(fFields[UCAL_DAY_OF_WEEK_IN_MONTH]==0) fprintf(stderr, "%s:%d: DOWIM %d on %g\n",
+ __FILE__, __LINE__,fFields[UCAL_DAY_OF_WEEK_IN_MONTH], fTime);
#endif
}
int32_t Calendar::weekNumber(int32_t desiredDay, int32_t dayOfPeriod, int32_t dayOfWeek)
{
- // Determine the day of the week of the first day of the period
- // in question (either a year or a month). Zero represents the
- // first day of the week on this calendar.
- int32_t periodStartDayOfWeek = (dayOfWeek - getFirstDayOfWeek() - dayOfPeriod + 1) % 7;
- if (periodStartDayOfWeek < 0) periodStartDayOfWeek += 7;
-
- // Compute the week number. Initially, ignore the first week, which
- // may be fractional (or may not be). We add periodStartDayOfWeek in
- // order to fill out the first week, if it is fractional.
- int32_t weekNo = (desiredDay + periodStartDayOfWeek - 1)/7;
-
- // If the first week is long enough, then count it. If
- // the minimal days in the first week is one, or if the period start
- // is zero, we always increment weekNo.
- if ((7 - periodStartDayOfWeek) >= getMinimalDaysInFirstWeek()) ++weekNo;
-
- return weekNo;
+ // Determine the day of the week of the first day of the period
+ // in question (either a year or a month). Zero represents the
+ // first day of the week on this calendar.
+ int32_t periodStartDayOfWeek = (dayOfWeek - getFirstDayOfWeek() - dayOfPeriod + 1) % 7;
+ if (periodStartDayOfWeek < 0) periodStartDayOfWeek += 7;
+
+ // Compute the week number. Initially, ignore the first week, which
+ // may be fractional (or may not be). We add periodStartDayOfWeek in
+ // order to fill out the first week, if it is fractional.
+ int32_t weekNo = (desiredDay + periodStartDayOfWeek - 1)/7;
+
+ // If the first week is long enough, then count it. If
+ // the minimal days in the first week is one, or if the period start
+ // is zero, we always increment weekNo.
+ if ((7 - periodStartDayOfWeek) >= getMinimalDaysInFirstWeek()) ++weekNo;
+
+ return weekNo;
}
void Calendar::handleComputeFields(int32_t /* julianDay */, UErrorCode &/* status */)
{
- internalSet(UCAL_MONTH, getGregorianMonth());
- internalSet(UCAL_DAY_OF_MONTH, getGregorianDayOfMonth());
- internalSet(UCAL_DAY_OF_YEAR, getGregorianDayOfYear());
- int32_t eyear = getGregorianYear();
- internalSet(UCAL_EXTENDED_YEAR, eyear);
- int32_t era = GregorianCalendar::AD;
- if (eyear < 1) {
- era = GregorianCalendar::BC;
- eyear = 1 - eyear;
- }
- internalSet(UCAL_ERA, era);
- internalSet(UCAL_YEAR, eyear);
+ internalSet(UCAL_MONTH, getGregorianMonth());
+ internalSet(UCAL_DAY_OF_MONTH, getGregorianDayOfMonth());
+ internalSet(UCAL_DAY_OF_YEAR, getGregorianDayOfYear());
+ int32_t eyear = getGregorianYear();
+ internalSet(UCAL_EXTENDED_YEAR, eyear);
+ int32_t era = GregorianCalendar::AD;
+ if (eyear < 1) {
+ era = GregorianCalendar::BC;
+ eyear = 1 - eyear;
+ }
+ internalSet(UCAL_ERA, era);
+ internalSet(UCAL_YEAR, eyear);
}
// -------------------------------------
-void Calendar::roll(EDateFields field, int32_t amount, UErrorCode& status)
+void Calendar::roll(EDateFields field, int32_t amount, UErrorCode& status)
{
- roll((UCalendarDateFields)field, amount, status);
+ roll((UCalendarDateFields)field, amount, status);
}
void Calendar::roll(UCalendarDateFields field, int32_t amount, UErrorCode& status)
{
- if (amount == 0) {
- return; // Nothing to do
- }
-
- complete(status);
-
- if(U_FAILURE(status)) {
- return;
- }
- switch (field) {
- case UCAL_DAY_OF_MONTH:
- case UCAL_AM_PM:
- case UCAL_MINUTE:
- case UCAL_SECOND:
- case UCAL_MILLISECOND:
- case UCAL_MILLISECONDS_IN_DAY:
- case UCAL_ERA:
- // These are the standard roll instructions. These work for all
- // simple cases, that is, cases in which the limits are fixed, such
- // as the hour, the day of the month, and the era.
- {
- int32_t min = getActualMinimum(field,status);
- int32_t max = getActualMaximum(field,status);
- int32_t gap = max - min + 1;
-
- int32_t value = internalGet(field) + amount;
- value = (value - min) % gap;
- if (value < 0) {
- value += gap;
- }
- value += min;
-
- set(field, value);
- return;
+ if (amount == 0) {
+ return; // Nothing to do
}
- case UCAL_HOUR:
- case UCAL_HOUR_OF_DAY:
- // Rolling the hour is difficult on the ONSET and CEASE days of
- // daylight savings. For example, if the change occurs at
- // 2 AM, we have the following progression:
- // ONSET: 12 Std -> 1 Std -> 3 Dst -> 4 Dst
- // CEASE: 12 Dst -> 1 Dst -> 1 Std -> 2 Std
- // To get around this problem we don't use fields; we manipulate
- // the time in millis directly.
- {
- // Assume min == 0 in calculations below
- double start = getTimeInMillis(status);
- int32_t oldHour = internalGet(field);
- int32_t max = getMaximum(field);
- int32_t newHour = (oldHour + amount) % (max + 1);
- if (newHour < 0) {
- newHour += max + 1;
- }
- setTimeInMillis(start + kOneHour * (newHour - oldHour),status);
- return;
+ complete(status);
+
+ if(U_FAILURE(status)) {
+ return;
}
+ switch (field) {
+ case UCAL_DAY_OF_MONTH:
+ case UCAL_AM_PM:
+ case UCAL_MINUTE:
+ case UCAL_SECOND:
+ case UCAL_MILLISECOND:
+ case UCAL_MILLISECONDS_IN_DAY:
+ case UCAL_ERA:
+ // These are the standard roll instructions. These work for all
+ // simple cases, that is, cases in which the limits are fixed, such
+ // as the hour, the day of the month, and the era.
+ {
+ int32_t min = getActualMinimum(field,status);
+ int32_t max = getActualMaximum(field,status);
+ int32_t gap = max - min + 1;
+
+ int32_t value = internalGet(field) + amount;
+ value = (value - min) % gap;
+ if (value < 0) {
+ value += gap;
+ }
+ value += min;
- case UCAL_MONTH:
- // Rolling the month involves both pinning the final value
- // and adjusting the DAY_OF_MONTH if necessary. We only adjust the
- // DAY_OF_MONTH if, after updating the MONTH field, it is illegal.
- // E.g., <jan31>.roll(MONTH, 1) -> <feb28> or <feb29>.
- {
- int32_t max = getActualMaximum(UCAL_MONTH, status);
- int32_t mon = (internalGet(UCAL_MONTH) + amount) % (max+1);
+ set(field, value);
+ return;
+ }
- if (mon < 0) {
- mon += (max + 1);
- }
- set(UCAL_MONTH, mon);
+ case UCAL_HOUR:
+ case UCAL_HOUR_OF_DAY:
+ // Rolling the hour is difficult on the ONSET and CEASE days of
+ // daylight savings. For example, if the change occurs at
+ // 2 AM, we have the following progression:
+ // ONSET: 12 Std -> 1 Std -> 3 Dst -> 4 Dst
+ // CEASE: 12 Dst -> 1 Dst -> 1 Std -> 2 Std
+ // To get around this problem we don't use fields; we manipulate
+ // the time in millis directly.
+ {
+ // Assume min == 0 in calculations below
+ double start = getTimeInMillis(status);
+ int32_t oldHour = internalGet(field);
+ int32_t max = getMaximum(field);
+ int32_t newHour = (oldHour + amount) % (max + 1);
+ if (newHour < 0) {
+ newHour += max + 1;
+ }
+ setTimeInMillis(start + kOneHour * (newHour - oldHour),status);
+ return;
+ }
- // Keep the day of month in range. We don't want to spill over
- // into the next month; e.g., we don't want jan31 + 1 mo -> feb31 ->
- // mar3.
- pinField(UCAL_DAY_OF_MONTH,status);
- return;
- }
+ case UCAL_MONTH:
+ // Rolling the month involves both pinning the final value
+ // and adjusting the DAY_OF_MONTH if necessary. We only adjust the
+ // DAY_OF_MONTH if, after updating the MONTH field, it is illegal.
+ // E.g., <jan31>.roll(MONTH, 1) -> <feb28> or <feb29>.
+ {
+ int32_t max = getActualMaximum(UCAL_MONTH, status);
+ int32_t mon = (internalGet(UCAL_MONTH) + amount) % (max+1);
- case UCAL_YEAR:
- case UCAL_YEAR_WOY:
- case UCAL_EXTENDED_YEAR:
- // Rolling the year can involve pinning the DAY_OF_MONTH.
- set(field, internalGet(field) + amount);
- pinField(UCAL_MONTH,status);
- pinField(UCAL_DAY_OF_MONTH,status);
- return;
+ if (mon < 0) {
+ mon += (max + 1);
+ }
+ set(UCAL_MONTH, mon);
- case UCAL_WEEK_OF_MONTH:
- {
- // This is tricky, because during the roll we may have to shift
- // to a different day of the week. For example:
-
- // s m t w r f s
- // 1 2 3 4 5
- // 6 7 8 9 10 11 12
-
- // When rolling from the 6th or 7th back one week, we go to the
- // 1st (assuming that the first partial week counts). The same
- // thing happens at the end of the month.
-
- // The other tricky thing is that we have to figure out whether
- // the first partial week actually counts or not, based on the
- // minimal first days in the week. And we have to use the
- // correct first day of the week to delineate the week
- // boundaries.
-
- // Here's our algorithm. First, we find the real boundaries of
- // the month. Then we discard the first partial week if it
- // doesn't count in this locale. Then we fill in the ends with
- // phantom days, so that the first partial week and the last
- // partial week are full weeks. We then have a nice square
- // block of weeks. We do the usual rolling within this block,
- // as is done elsewhere in this method. If we wind up on one of
- // the phantom days that we added, we recognize this and pin to
- // the first or the last day of the month. Easy, eh?
-
- // Normalize the DAY_OF_WEEK so that 0 is the first day of the week
- // in this locale. We have dow in 0..6.
- int32_t dow = internalGet(UCAL_DAY_OF_WEEK) - getFirstDayOfWeek();
- if (dow < 0) dow += 7;
-
- // Find the day of the week (normalized for locale) for the first
- // of the month.
- int32_t fdm = (dow - internalGet(UCAL_DAY_OF_MONTH) + 1) % 7;
- if (fdm < 0) fdm += 7;
-
- // Get the first day of the first full week of the month,
- // including phantom days, if any. Figure out if the first week
- // counts or not; if it counts, then fill in phantom days. If
- // not, advance to the first real full week (skip the partial week).
- int32_t start;
- if ((7 - fdm) < getMinimalDaysInFirstWeek())
- start = 8 - fdm; // Skip the first partial week
- else
- start = 1 - fdm; // This may be zero or negative
-
- // Get the day of the week (normalized for locale) for the last
- // day of the month.
- int32_t monthLen = getActualMaximum(UCAL_DAY_OF_MONTH, status);
- int32_t ldm = (monthLen - internalGet(UCAL_DAY_OF_MONTH) + dow) % 7;
- // We know monthLen >= DAY_OF_MONTH so we skip the += 7 step here.
-
- // Get the limit day for the blocked-off rectangular month; that
- // is, the day which is one past the last day of the month,
- // after the month has already been filled in with phantom days
- // to fill out the last week. This day has a normalized DOW of 0.
- int32_t limit = monthLen + 7 - ldm;
-
- // Now roll between start and (limit - 1).
- int32_t gap = limit - start;
- int32_t day_of_month = (internalGet(UCAL_DAY_OF_MONTH) + amount*7 -
- start) % gap;
- if (day_of_month < 0) day_of_month += gap;
- day_of_month += start;
-
- // Finally, pin to the real start and end of the month.
- if (day_of_month < 1) day_of_month = 1;
- if (day_of_month > monthLen) day_of_month = monthLen;
-
- // Set the DAY_OF_MONTH. We rely on the fact that this field
- // takes precedence over everything else (since all other fields
- // are also set at this point). If this fact changes (if the
- // disambiguation algorithm changes) then we will have to unset
- // the appropriate fields here so that DAY_OF_MONTH is attended
- // to.
- set(UCAL_DAY_OF_MONTH, day_of_month);
- return;
- }
- case UCAL_WEEK_OF_YEAR:
- {
- // This follows the outline of WEEK_OF_MONTH, except it applies
- // to the whole year. Please see the comment for WEEK_OF_MONTH
- // for general notes.
-
- // Normalize the DAY_OF_WEEK so that 0 is the first day of the week
- // in this locale. We have dow in 0..6.
- int32_t dow = internalGet(UCAL_DAY_OF_WEEK) - getFirstDayOfWeek();
- if (dow < 0) dow += 7;
-
- // Find the day of the week (normalized for locale) for the first
- // of the year.
- int32_t fdy = (dow - internalGet(UCAL_DAY_OF_YEAR) + 1) % 7;
- if (fdy < 0) fdy += 7;
-
- // Get the first day of the first full week of the year,
- // including phantom days, if any. Figure out if the first week
- // counts or not; if it counts, then fill in phantom days. If
- // not, advance to the first real full week (skip the partial week).
- int32_t start;
- if ((7 - fdy) < getMinimalDaysInFirstWeek())
- start = 8 - fdy; // Skip the first partial week
- else
- start = 1 - fdy; // This may be zero or negative
-
- // Get the day of the week (normalized for locale) for the last
- // day of the year.
- int32_t yearLen = getActualMaximum(UCAL_DAY_OF_YEAR,status);
- int32_t ldy = (yearLen - internalGet(UCAL_DAY_OF_YEAR) + dow) % 7;
- // We know yearLen >= DAY_OF_YEAR so we skip the += 7 step here.
-
- // Get the limit day for the blocked-off rectangular year; that
- // is, the day which is one past the last day of the year,
- // after the year has already been filled in with phantom days
- // to fill out the last week. This day has a normalized DOW of 0.
- int32_t limit = yearLen + 7 - ldy;
-
- // Now roll between start and (limit - 1).
- int32_t gap = limit - start;
- int32_t day_of_year = (internalGet(UCAL_DAY_OF_YEAR) + amount*7 -
- start) % gap;
- if (day_of_year < 0) day_of_year += gap;
- day_of_year += start;
-
- // Finally, pin to the real start and end of the month.
- if (day_of_year < 1) day_of_year = 1;
- if (day_of_year > yearLen) day_of_year = yearLen;
-
- // Make sure that the year and day of year are attended to by
- // clearing other fields which would normally take precedence.
- // If the disambiguation algorithm is changed, this section will
- // have to be updated as well.
- set(UCAL_DAY_OF_YEAR, day_of_year);
- clear(UCAL_MONTH);
- return;
- }
- case UCAL_DAY_OF_YEAR:
- {
- // Roll the day of year using millis. Compute the millis for
- // the start of the year, and get the length of the year.
- double delta = amount * kOneDay; // Scale up from days to millis
- double min2 = internalGet(UCAL_DAY_OF_YEAR)-1;
- min2 *= kOneDay;
- min2 = internalGetTime() - min2;
-
- // double min2 = internalGetTime() - (internalGet(UCAL_DAY_OF_YEAR) - 1.0) * kOneDay;
- double newtime;
-
- double yearLength = getActualMaximum(UCAL_DAY_OF_YEAR,status);
- double oneYear = yearLength;
- oneYear *= kOneDay;
- newtime = uprv_fmod((internalGetTime() + delta - min2), oneYear);
- if (newtime < 0) newtime += oneYear;
- setTimeInMillis(newtime + min2, status);
- return;
- }
- case UCAL_DAY_OF_WEEK:
- case UCAL_DOW_LOCAL:
- {
- // Roll the day of week using millis. Compute the millis for
- // the start of the week, using the first day of week setting.
- // Restrict the millis to [start, start+7days).
- double delta = amount * kOneDay; // Scale up from days to millis
- // Compute the number of days before the current day in this
- // week. This will be a value 0..6.
- int32_t leadDays = internalGet(field);
- leadDays -= (field == UCAL_DAY_OF_WEEK) ? getFirstDayOfWeek() : 1;
- if (leadDays < 0) leadDays += 7;
- double min2 = internalGetTime() - leadDays * kOneDay;
- double newtime = uprv_fmod((internalGetTime() + delta - min2), kOneWeek);
- if (newtime < 0) newtime += kOneWeek;
- setTimeInMillis(newtime + min2, status);
- return;
- }
- case UCAL_DAY_OF_WEEK_IN_MONTH:
- {
- // Roll the day of week in the month using millis. Determine
- // the first day of the week in the month, and then the last,
- // and then roll within that range.
- double delta = amount * kOneWeek; // Scale up from weeks to millis
- // Find the number of same days of the week before this one
- // in this month.
- int32_t preWeeks = (internalGet(UCAL_DAY_OF_MONTH) - 1) / 7;
- // Find the number of same days of the week after this one
- // in this month.
- int32_t postWeeks = (getActualMaximum(UCAL_DAY_OF_MONTH,status) -
- internalGet(UCAL_DAY_OF_MONTH)) / 7;
- // From these compute the min and gap millis for rolling.
- double min2 = internalGetTime() - preWeeks * kOneWeek;
- double gap2 = kOneWeek * (preWeeks + postWeeks + 1); // Must add 1!
- // Roll within this range
- double newtime = uprv_fmod((internalGetTime() + delta - min2), gap2);
- if (newtime < 0) newtime += gap2;
- setTimeInMillis(newtime + min2, status);
- return;
- }
- case UCAL_JULIAN_DAY:
- set(field, internalGet(field) + amount);
- return;
- default:
- // Other fields cannot be rolled by this method
+ // Keep the day of month in range. We don't want to spill over
+ // into the next month; e.g., we don't want jan31 + 1 mo -> feb31 ->
+ // mar3.
+ pinField(UCAL_DAY_OF_MONTH,status);
+ return;
+ }
+
+ case UCAL_YEAR:
+ case UCAL_YEAR_WOY:
+ {
+ // * If era==0 and years go backwards in time, change sign of amount.
+ // * Until we have new API per #9393, we temporarily hardcode knowledge of
+ // which calendars have era 0 years that go backwards.
+ UBool era0WithYearsThatGoBackwards = FALSE;
+ int32_t era = get(UCAL_ERA, status);
+ if (era == 0) {
+ const char * calType = getType();
+ if ( uprv_strcmp(calType,"gregorian")==0 || uprv_strcmp(calType,"roc")==0 || uprv_strcmp(calType,"coptic")==0 ) {
+ amount = -amount;
+ era0WithYearsThatGoBackwards = TRUE;
+ }
+ }
+ int32_t newYear = internalGet(field) + amount;
+ if (era > 0 || newYear >= 1) {
+ int32_t maxYear = getActualMaximum(field, status);
+ if (maxYear < 32768) {
+ // this era has real bounds, roll should wrap years
+ if (newYear < 1) {
+ newYear = maxYear - ((-newYear) % maxYear);
+ } else if (newYear > maxYear) {
+ newYear = ((newYear - 1) % maxYear) + 1;
+ }
+ // else era is unbounded, just pin low year instead of wrapping
+ } else if (newYear < 1) {
+ newYear = 1;
+ }
+ // else we are in era 0 with newYear < 1;
+ // calendars with years that go backwards must pin the year value at 0,
+ // other calendars can have years < 0 in era 0
+ } else if (era0WithYearsThatGoBackwards) {
+ newYear = 1;
+ }
+ set(field, newYear);
+ pinField(UCAL_MONTH,status);
+ pinField(UCAL_DAY_OF_MONTH,status);
+ return;
+ }
+
+ case UCAL_EXTENDED_YEAR:
+ // Rolling the year can involve pinning the DAY_OF_MONTH.
+ set(field, internalGet(field) + amount);
+ pinField(UCAL_MONTH,status);
+ pinField(UCAL_DAY_OF_MONTH,status);
+ return;
+
+ case UCAL_WEEK_OF_MONTH:
+ {
+ // This is tricky, because during the roll we may have to shift
+ // to a different day of the week. For example:
+
+ // s m t w r f s
+ // 1 2 3 4 5
+ // 6 7 8 9 10 11 12
+
+ // When rolling from the 6th or 7th back one week, we go to the
+ // 1st (assuming that the first partial week counts). The same
+ // thing happens at the end of the month.
+
+ // The other tricky thing is that we have to figure out whether
+ // the first partial week actually counts or not, based on the
+ // minimal first days in the week. And we have to use the
+ // correct first day of the week to delineate the week
+ // boundaries.
+
+ // Here's our algorithm. First, we find the real boundaries of
+ // the month. Then we discard the first partial week if it
+ // doesn't count in this locale. Then we fill in the ends with
+ // phantom days, so that the first partial week and the last
+ // partial week are full weeks. We then have a nice square
+ // block of weeks. We do the usual rolling within this block,
+ // as is done elsewhere in this method. If we wind up on one of
+ // the phantom days that we added, we recognize this and pin to
+ // the first or the last day of the month. Easy, eh?
+
+ // Normalize the DAY_OF_WEEK so that 0 is the first day of the week
+ // in this locale. We have dow in 0..6.
+ int32_t dow = internalGet(UCAL_DAY_OF_WEEK) - getFirstDayOfWeek();
+ if (dow < 0) dow += 7;
+
+ // Find the day of the week (normalized for locale) for the first
+ // of the month.
+ int32_t fdm = (dow - internalGet(UCAL_DAY_OF_MONTH) + 1) % 7;
+ if (fdm < 0) fdm += 7;
+
+ // Get the first day of the first full week of the month,
+ // including phantom days, if any. Figure out if the first week
+ // counts or not; if it counts, then fill in phantom days. If
+ // not, advance to the first real full week (skip the partial week).
+ int32_t start;
+ if ((7 - fdm) < getMinimalDaysInFirstWeek())
+ start = 8 - fdm; // Skip the first partial week
+ else
+ start = 1 - fdm; // This may be zero or negative
+
+ // Get the day of the week (normalized for locale) for the last
+ // day of the month.
+ int32_t monthLen = getActualMaximum(UCAL_DAY_OF_MONTH, status);
+ int32_t ldm = (monthLen - internalGet(UCAL_DAY_OF_MONTH) + dow) % 7;
+ // We know monthLen >= DAY_OF_MONTH so we skip the += 7 step here.
+
+ // Get the limit day for the blocked-off rectangular month; that
+ // is, the day which is one past the last day of the month,
+ // after the month has already been filled in with phantom days
+ // to fill out the last week. This day has a normalized DOW of 0.
+ int32_t limit = monthLen + 7 - ldm;
+
+ // Now roll between start and (limit - 1).
+ int32_t gap = limit - start;
+ int32_t day_of_month = (internalGet(UCAL_DAY_OF_MONTH) + amount*7 -
+ start) % gap;
+ if (day_of_month < 0) day_of_month += gap;
+ day_of_month += start;
+
+ // Finally, pin to the real start and end of the month.
+ if (day_of_month < 1) day_of_month = 1;
+ if (day_of_month > monthLen) day_of_month = monthLen;
+
+ // Set the DAY_OF_MONTH. We rely on the fact that this field
+ // takes precedence over everything else (since all other fields
+ // are also set at this point). If this fact changes (if the
+ // disambiguation algorithm changes) then we will have to unset
+ // the appropriate fields here so that DAY_OF_MONTH is attended
+ // to.
+ set(UCAL_DAY_OF_MONTH, day_of_month);
+ return;
+ }
+ case UCAL_WEEK_OF_YEAR:
+ {
+ // This follows the outline of WEEK_OF_MONTH, except it applies
+ // to the whole year. Please see the comment for WEEK_OF_MONTH
+ // for general notes.
+
+ // Normalize the DAY_OF_WEEK so that 0 is the first day of the week
+ // in this locale. We have dow in 0..6.
+ int32_t dow = internalGet(UCAL_DAY_OF_WEEK) - getFirstDayOfWeek();
+ if (dow < 0) dow += 7;
+
+ // Find the day of the week (normalized for locale) for the first
+ // of the year.
+ int32_t fdy = (dow - internalGet(UCAL_DAY_OF_YEAR) + 1) % 7;
+ if (fdy < 0) fdy += 7;
+
+ // Get the first day of the first full week of the year,
+ // including phantom days, if any. Figure out if the first week
+ // counts or not; if it counts, then fill in phantom days. If
+ // not, advance to the first real full week (skip the partial week).
+ int32_t start;
+ if ((7 - fdy) < getMinimalDaysInFirstWeek())
+ start = 8 - fdy; // Skip the first partial week
+ else
+ start = 1 - fdy; // This may be zero or negative
+
+ // Get the day of the week (normalized for locale) for the last
+ // day of the year.
+ int32_t yearLen = getActualMaximum(UCAL_DAY_OF_YEAR,status);
+ int32_t ldy = (yearLen - internalGet(UCAL_DAY_OF_YEAR) + dow) % 7;
+ // We know yearLen >= DAY_OF_YEAR so we skip the += 7 step here.
+
+ // Get the limit day for the blocked-off rectangular year; that
+ // is, the day which is one past the last day of the year,
+ // after the year has already been filled in with phantom days
+ // to fill out the last week. This day has a normalized DOW of 0.
+ int32_t limit = yearLen + 7 - ldy;
+
+ // Now roll between start and (limit - 1).
+ int32_t gap = limit - start;
+ int32_t day_of_year = (internalGet(UCAL_DAY_OF_YEAR) + amount*7 -
+ start) % gap;
+ if (day_of_year < 0) day_of_year += gap;
+ day_of_year += start;
+
+ // Finally, pin to the real start and end of the month.
+ if (day_of_year < 1) day_of_year = 1;
+ if (day_of_year > yearLen) day_of_year = yearLen;
+
+ // Make sure that the year and day of year are attended to by
+ // clearing other fields which would normally take precedence.
+ // If the disambiguation algorithm is changed, this section will
+ // have to be updated as well.
+ set(UCAL_DAY_OF_YEAR, day_of_year);
+ clear(UCAL_MONTH);
+ return;
+ }
+ case UCAL_DAY_OF_YEAR:
+ {
+ // Roll the day of year using millis. Compute the millis for
+ // the start of the year, and get the length of the year.
+ double delta = amount * kOneDay; // Scale up from days to millis
+ double min2 = internalGet(UCAL_DAY_OF_YEAR)-1;
+ min2 *= kOneDay;
+ min2 = internalGetTime() - min2;
+
+ // double min2 = internalGetTime() - (internalGet(UCAL_DAY_OF_YEAR) - 1.0) * kOneDay;
+ double newtime;
+
+ double yearLength = getActualMaximum(UCAL_DAY_OF_YEAR,status);
+ double oneYear = yearLength;
+ oneYear *= kOneDay;
+ newtime = uprv_fmod((internalGetTime() + delta - min2), oneYear);
+ if (newtime < 0) newtime += oneYear;
+ setTimeInMillis(newtime + min2, status);
+ return;
+ }
+ case UCAL_DAY_OF_WEEK:
+ case UCAL_DOW_LOCAL:
+ {
+ // Roll the day of week using millis. Compute the millis for
+ // the start of the week, using the first day of week setting.
+ // Restrict the millis to [start, start+7days).
+ double delta = amount * kOneDay; // Scale up from days to millis
+ // Compute the number of days before the current day in this
+ // week. This will be a value 0..6.
+ int32_t leadDays = internalGet(field);
+ leadDays -= (field == UCAL_DAY_OF_WEEK) ? getFirstDayOfWeek() : 1;
+ if (leadDays < 0) leadDays += 7;
+ double min2 = internalGetTime() - leadDays * kOneDay;
+ double newtime = uprv_fmod((internalGetTime() + delta - min2), kOneWeek);
+ if (newtime < 0) newtime += kOneWeek;
+ setTimeInMillis(newtime + min2, status);
+ return;
+ }
+ case UCAL_DAY_OF_WEEK_IN_MONTH:
+ {
+ // Roll the day of week in the month using millis. Determine
+ // the first day of the week in the month, and then the last,
+ // and then roll within that range.
+ double delta = amount * kOneWeek; // Scale up from weeks to millis
+ // Find the number of same days of the week before this one
+ // in this month.
+ int32_t preWeeks = (internalGet(UCAL_DAY_OF_MONTH) - 1) / 7;
+ // Find the number of same days of the week after this one
+ // in this month.
+ int32_t postWeeks = (getActualMaximum(UCAL_DAY_OF_MONTH,status) -
+ internalGet(UCAL_DAY_OF_MONTH)) / 7;
+ // From these compute the min and gap millis for rolling.
+ double min2 = internalGetTime() - preWeeks * kOneWeek;
+ double gap2 = kOneWeek * (preWeeks + postWeeks + 1); // Must add 1!
+ // Roll within this range
+ double newtime = uprv_fmod((internalGetTime() + delta - min2), gap2);
+ if (newtime < 0) newtime += gap2;
+ setTimeInMillis(newtime + min2, status);
+ return;
+ }
+ case UCAL_JULIAN_DAY:
+ set(field, internalGet(field) + amount);
+ return;
+ default:
+ // Other fields cannot be rolled by this method
#if defined (U_DEBUG_CAL)
- fprintf(stderr, "%s:%d: ILLEGAL ARG because of roll on non-rollable field %s\n",
- __FILE__, __LINE__,fldName(field));
+ fprintf(stderr, "%s:%d: ILLEGAL ARG because of roll on non-rollable field %s\n",
+ __FILE__, __LINE__,fldName(field));
#endif
- status = U_ILLEGAL_ARGUMENT_ERROR;
- }
+ status = U_ILLEGAL_ARGUMENT_ERROR;
+ }
}
void Calendar::add(EDateFields field, int32_t amount, UErrorCode& status)
{
- Calendar::add((UCalendarDateFields)field, amount, status);
+ Calendar::add((UCalendarDateFields)field, amount, status);
}
// -------------------------------------
void Calendar::add(UCalendarDateFields field, int32_t amount, UErrorCode& status)
{
- if (amount == 0) {
- return; // Do nothing!
- }
-
- // We handle most fields in the same way. The algorithm is to add
- // a computed amount of millis to the current millis. The only
- // wrinkle is with DST -- for some fields, like the DAY_OF_MONTH,
- // we don't want the HOUR to shift due to changes in DST. If the
- // result of the add operation is to move from DST to Standard, or
- // vice versa, we need to adjust by an hour forward or back,
- // respectively. For such fields we set keepHourInvariant to TRUE.
-
- // We only adjust the DST for fields larger than an hour. For
- // fields smaller than an hour, we cannot adjust for DST without
- // causing problems. for instance, if you add one hour to April 5,
- // 1998, 1:00 AM, in PST, the time becomes "2:00 AM PDT" (an
- // illegal value), but then the adjustment sees the change and
- // compensates by subtracting an hour. As a result the time
- // doesn't advance at all.
-
- // For some fields larger than a day, such as a UCAL_MONTH, we pin the
- // UCAL_DAY_OF_MONTH. This allows <March 31>.add(UCAL_MONTH, 1) to be
- // <April 30>, rather than <April 31> => <May 1>.
-
- double delta = amount; // delta in ms
- UBool keepHourInvariant = TRUE;
-
- switch (field) {
- case UCAL_ERA:
- set(field, get(field, status) + amount);
- pinField(UCAL_ERA, status);
- return;
-
- case UCAL_YEAR:
- case UCAL_EXTENDED_YEAR:
- case UCAL_YEAR_WOY:
- case UCAL_MONTH:
- set(field, get(field, status) + amount);
- pinField(UCAL_DAY_OF_MONTH, status);
- return;
-
- case UCAL_WEEK_OF_YEAR:
- case UCAL_WEEK_OF_MONTH:
- case UCAL_DAY_OF_WEEK_IN_MONTH:
- delta *= kOneWeek;
- break;
-
- case UCAL_AM_PM:
- delta *= 12 * kOneHour;
- break;
-
- case UCAL_DAY_OF_MONTH:
- case UCAL_DAY_OF_YEAR:
- case UCAL_DAY_OF_WEEK:
- case UCAL_DOW_LOCAL:
- case UCAL_JULIAN_DAY:
- delta *= kOneDay;
- break;
-
- case UCAL_HOUR_OF_DAY:
- case UCAL_HOUR:
- delta *= kOneHour;
- keepHourInvariant = FALSE;
- break;
-
- case UCAL_MINUTE:
- delta *= kOneMinute;
- keepHourInvariant = FALSE;
- break;
-
- case UCAL_SECOND:
- delta *= kOneSecond;
- keepHourInvariant = FALSE;
- break;
-
- case UCAL_MILLISECOND:
- case UCAL_MILLISECONDS_IN_DAY:
- keepHourInvariant = FALSE;
- break;
-
- default:
+ if (amount == 0) {
+ return; // Do nothing!
+ }
+
+ // We handle most fields in the same way. The algorithm is to add
+ // a computed amount of millis to the current millis. The only
+ // wrinkle is with DST (and/or a change to the zone's UTC offset, which
+ // we'll include with DST) -- for some fields, like the DAY_OF_MONTH,
+ // we don't want the wall time to shift due to changes in DST. If the
+ // result of the add operation is to move from DST to Standard, or
+ // vice versa, we need to adjust by an hour forward or back,
+ // respectively. For such fields we set keepWallTimeInvariant to TRUE.
+
+ // We only adjust the DST for fields larger than an hour. For
+ // fields smaller than an hour, we cannot adjust for DST without
+ // causing problems. for instance, if you add one hour to April 5,
+ // 1998, 1:00 AM, in PST, the time becomes "2:00 AM PDT" (an
+ // illegal value), but then the adjustment sees the change and
+ // compensates by subtracting an hour. As a result the time
+ // doesn't advance at all.
+
+ // For some fields larger than a day, such as a UCAL_MONTH, we pin the
+ // UCAL_DAY_OF_MONTH. This allows <March 31>.add(UCAL_MONTH, 1) to be
+ // <April 30>, rather than <April 31> => <May 1>.
+
+ double delta = amount; // delta in ms
+ UBool keepWallTimeInvariant = TRUE;
+
+ switch (field) {
+ case UCAL_ERA:
+ set(field, get(field, status) + amount);
+ pinField(UCAL_ERA, status);
+ return;
+
+ case UCAL_YEAR:
+ case UCAL_YEAR_WOY:
+ {
+ // * If era=0 and years go backwards in time, change sign of amount.
+ // * Until we have new API per #9393, we temporarily hardcode knowledge of
+ // which calendars have era 0 years that go backwards.
+ // * Note that for UCAL_YEAR (but not UCAL_YEAR_WOY) we could instead handle
+ // this by applying the amount to the UCAL_EXTENDED_YEAR field; but since
+ // we would still need to handle UCAL_YEAR_WOY as below, might as well
+ // also handle UCAL_YEAR the same way.
+ int32_t era = get(UCAL_ERA, status);
+ if (era == 0) {
+ const char * calType = getType();
+ if ( uprv_strcmp(calType,"gregorian")==0 || uprv_strcmp(calType,"roc")==0 || uprv_strcmp(calType,"coptic")==0 ) {
+ amount = -amount;
+ }
+ }
+ }
+ // Fall through into normal handling
+ U_FALLTHROUGH;
+ case UCAL_EXTENDED_YEAR:
+ case UCAL_MONTH:
+ {
+ UBool oldLenient = isLenient();
+ setLenient(TRUE);
+ set(field, get(field, status) + amount);
+ pinField(UCAL_DAY_OF_MONTH, status);
+ if(oldLenient==FALSE) {
+ complete(status); /* force recalculate */
+ setLenient(oldLenient);
+ }
+ }
+ return;
+
+ case UCAL_WEEK_OF_YEAR:
+ case UCAL_WEEK_OF_MONTH:
+ case UCAL_DAY_OF_WEEK_IN_MONTH:
+ delta *= kOneWeek;
+ break;
+
+ case UCAL_AM_PM:
+ delta *= 12 * kOneHour;
+ break;
+
+ case UCAL_DAY_OF_MONTH:
+ case UCAL_DAY_OF_YEAR:
+ case UCAL_DAY_OF_WEEK:
+ case UCAL_DOW_LOCAL:
+ case UCAL_JULIAN_DAY:
+ delta *= kOneDay;
+ break;
+
+ case UCAL_HOUR_OF_DAY:
+ case UCAL_HOUR:
+ delta *= kOneHour;
+ keepWallTimeInvariant = FALSE;
+ break;
+
+ case UCAL_MINUTE:
+ delta *= kOneMinute;
+ keepWallTimeInvariant = FALSE;
+ break;
+
+ case UCAL_SECOND:
+ delta *= kOneSecond;
+ keepWallTimeInvariant = FALSE;
+ break;
+
+ case UCAL_MILLISECOND:
+ case UCAL_MILLISECONDS_IN_DAY:
+ keepWallTimeInvariant = FALSE;
+ break;
+
+ default:
#if defined (U_DEBUG_CAL)
- fprintf(stderr, "%s:%d: ILLEGAL ARG because field %s not addable",
+ fprintf(stderr, "%s:%d: ILLEGAL ARG because field %s not addable",
__FILE__, __LINE__, fldName(field));
#endif
- status = U_ILLEGAL_ARGUMENT_ERROR;
- return;
- // throw new IllegalArgumentException("Calendar.add(" + fieldName(field) +
- // ") not supported");
- }
-
- // In order to keep the hour invariant (for fields where this is
- // appropriate), record the DST_OFFSET before and after the add()
- // operation. If it has changed, then adjust the millis to
- // compensate.
- int32_t dst = 0;
- int32_t hour = 0;
- if (keepHourInvariant) {
- dst = get(UCAL_DST_OFFSET, status);
- hour = internalGet(UCAL_HOUR_OF_DAY);
- }
-
- setTimeInMillis(getTimeInMillis(status) + delta, status);
-
- if (keepHourInvariant) {
- dst -= get(UCAL_DST_OFFSET, status);
- if (dst != 0) {
- // We have done an hour-invariant adjustment but the
- // DST offset has altered. We adjust millis to keep
- // the hour constant. In cases such as midnight after
- // a DST change which occurs at midnight, there is the
- // danger of adjusting into a different day. To avoid
- // this we make the adjustment only if it actually
- // maintains the hour.
- double t = internalGetTime();
- setTimeInMillis(t + dst, status);
- if (get(UCAL_HOUR_OF_DAY, status) != hour) {
- setTimeInMillis(t, status);
- }
+ status = U_ILLEGAL_ARGUMENT_ERROR;
+ return;
+ // throw new IllegalArgumentException("Calendar.add(" + fieldName(field) +
+ // ") not supported");
+ }
+
+ // In order to keep the wall time invariant (for fields where this is
+ // appropriate), check the combined DST & ZONE offset before and
+ // after the add() operation. If it changes, then adjust the millis
+ // to compensate.
+ int32_t prevOffset = 0;
+ int32_t prevWallTime = 0;
+ if (keepWallTimeInvariant) {
+ prevOffset = get(UCAL_DST_OFFSET, status) + get(UCAL_ZONE_OFFSET, status);
+ prevWallTime = get(UCAL_MILLISECONDS_IN_DAY, status);
+ }
+
+ setTimeInMillis(getTimeInMillis(status) + delta, status);
+
+ if (keepWallTimeInvariant) {
+ int32_t newWallTime = get(UCAL_MILLISECONDS_IN_DAY, status);
+ if (newWallTime != prevWallTime) {
+ // There is at least one zone transition between the base
+ // time and the result time. As the result, wall time has
+ // changed.
+ UDate t = internalGetTime();
+ int32_t newOffset = get(UCAL_DST_OFFSET, status) + get(UCAL_ZONE_OFFSET, status);
+ if (newOffset != prevOffset) {
+ // When the difference of the previous UTC offset and
+ // the new UTC offset exceeds 1 full day, we do not want
+ // to roll over/back the date. For now, this only happens
+ // in Samoa (Pacific/Apia) on Dec 30, 2011. See ticket:9452.
+ int32_t adjAmount = prevOffset - newOffset;
+ adjAmount = adjAmount >= 0 ? adjAmount % (int32_t)kOneDay : -(-adjAmount % (int32_t)kOneDay);
+ if (adjAmount != 0) {
+ setTimeInMillis(t + adjAmount, status);
+ newWallTime = get(UCAL_MILLISECONDS_IN_DAY, status);
+ }
+ if (newWallTime != prevWallTime) {
+ // The result wall time or adjusted wall time was shifted because
+ // the target wall time does not exist on the result date.
+ switch (fSkippedWallTime) {
+ case UCAL_WALLTIME_FIRST:
+ if (adjAmount > 0) {
+ setTimeInMillis(t, status);
+ }
+ break;
+ case UCAL_WALLTIME_LAST:
+ if (adjAmount < 0) {
+ setTimeInMillis(t, status);
+ }
+ break;
+ case UCAL_WALLTIME_NEXT_VALID:
+ UDate tmpT = adjAmount > 0 ? internalGetTime() : t;
+ UDate immediatePrevTrans;
+ UBool hasTransition = getImmediatePreviousZoneTransition(tmpT, &immediatePrevTrans, status);
+ if (U_SUCCESS(status) && hasTransition) {
+ setTimeInMillis(immediatePrevTrans, status);
+ }
+ break;
+ }
+ }
+ }
+ }
}
- }
}
// -------------------------------------
int32_t Calendar::fieldDifference(UDate when, EDateFields field, UErrorCode& status) {
- return fieldDifference(when, (UCalendarDateFields) field, status);
+ return fieldDifference(when, (UCalendarDateFields) field, status);
}
int32_t Calendar::fieldDifference(UDate targetMs, UCalendarDateFields field, UErrorCode& ec) {
return max;
} else if (ms > targetMs) {
break;
- } else {
+ } else if (max < INT32_MAX) {
+ min = max;
max <<= 1;
if (max < 0) {
- // Field difference too large to fit into int32_t
+ max = INT32_MAX;
+ }
+ } else {
+ // Field difference too large to fit into int32_t
#if defined (U_DEBUG_CAL)
- fprintf(stderr, "%s:%d: ILLEGAL ARG because field %s's max too large for int32_t\n",
- __FILE__, __LINE__, fldName(field));
+ fprintf(stderr, "%s:%d: ILLEGAL ARG because field %s's max too large for int32_t\n",
+ __FILE__, __LINE__, fldName(field));
#endif
- ec = U_ILLEGAL_ARGUMENT_ERROR;
- }
+ ec = U_ILLEGAL_ARGUMENT_ERROR;
}
}
// Do a binary search
while ((max - min) > 1 && U_SUCCESS(ec)) {
- int32_t t = (min + max) / 2;
+ int32_t t = min + (max - min)/2; // make sure intermediate values don't exceed INT32_MAX
setTimeInMillis(startMs, ec);
add(field, t, ec);
double ms = getTimeInMillis(ec);
} else if (ms < targetMs) {
break;
} else {
+ min = max;
max <<= 1;
if (max == 0) {
// Field difference too large to fit into int32_t
#if defined (U_DEBUG_CAL)
- fprintf(stderr, "%s:%d: ILLEGAL ARG because field %s's max too large for int32_t\n",
- __FILE__, __LINE__, fldName(field));
+ fprintf(stderr, "%s:%d: ILLEGAL ARG because field %s's max too large for int32_t\n",
+ __FILE__, __LINE__, fldName(field));
#endif
ec = U_ILLEGAL_ARGUMENT_ERROR;
}
}
// Do a binary search
while ((min - max) > 1 && U_SUCCESS(ec)) {
- int32_t t = (min + max) / 2;
+ int32_t t = min + (max - min)/2; // make sure intermediate values don't exceed INT32_MAX
setTimeInMillis(startMs, ec);
add(field, t, ec);
double ms = getTimeInMillis(ec);
// Set calendar to end point
setTimeInMillis(startMs, ec);
add(field, min, ec);
-
+
/* Test for buffer overflows */
if(U_FAILURE(ec)) {
return 0;
if (zone == NULL) return;
// fZone should always be non-null
- if (fZone != NULL) delete fZone;
+ delete fZone;
fZone = zone;
// if the zone changes, we need to recompute the time fields
const TimeZone&
Calendar::getTimeZone() const
{
+ U_ASSERT(fZone != NULL);
return *fZone;
}
TimeZone*
Calendar::orphanTimeZone()
{
- TimeZone *z = fZone;
// we let go of the time zone; the new time zone is the system default time zone
- fZone = TimeZone::createDefault();
+ TimeZone *defaultZone = TimeZone::createDefault();
+ if (defaultZone == NULL) {
+ // No error handling available. Must keep fZone non-NULL, there are many unchecked uses.
+ return NULL;
+ }
+ TimeZone *z = fZone;
+ fZone = defaultZone;
return z;
}
// -------------------------------------
+void
+Calendar::setRepeatedWallTimeOption(UCalendarWallTimeOption option)
+{
+ if (option == UCAL_WALLTIME_LAST || option == UCAL_WALLTIME_FIRST) {
+ fRepeatedWallTime = option;
+ }
+}
+
+// -------------------------------------
+
+UCalendarWallTimeOption
+Calendar::getRepeatedWallTimeOption(void) const
+{
+ return fRepeatedWallTime;
+}
+
+// -------------------------------------
+
+void
+Calendar::setSkippedWallTimeOption(UCalendarWallTimeOption option)
+{
+ fSkippedWallTime = option;
+}
+
+// -------------------------------------
+
+UCalendarWallTimeOption
+Calendar::getSkippedWallTimeOption(void) const
+{
+ return fSkippedWallTime;
+}
+
+// -------------------------------------
+
void
Calendar::setFirstDayOfWeek(UCalendarDaysOfWeek value)
{
- if (fFirstDayOfWeek != value &&
+ if (fFirstDayOfWeek != value &&
value >= UCAL_SUNDAY && value <= UCAL_SATURDAY) {
- fFirstDayOfWeek = value;
- fAreFieldsSet = FALSE;
- }
+ fFirstDayOfWeek = value;
+ fAreFieldsSet = FALSE;
+ }
}
// -------------------------------------
return fMinimalDaysInFirstWeek;
}
+// -------------------------------------
+// weekend functions, just dummy implementations for now (for API freeze)
+
+UCalendarWeekdayType
+Calendar::getDayOfWeekType(UCalendarDaysOfWeek dayOfWeek, UErrorCode &status) const
+{
+ if (U_FAILURE(status)) {
+ return UCAL_WEEKDAY;
+ }
+ if (dayOfWeek < UCAL_SUNDAY || dayOfWeek > UCAL_SATURDAY) {
+ status = U_ILLEGAL_ARGUMENT_ERROR;
+ return UCAL_WEEKDAY;
+ }
+ if (fWeekendOnset == fWeekendCease) {
+ if (dayOfWeek != fWeekendOnset)
+ return UCAL_WEEKDAY;
+ return (fWeekendOnsetMillis == 0) ? UCAL_WEEKEND : UCAL_WEEKEND_ONSET;
+ }
+ if (fWeekendOnset < fWeekendCease) {
+ if (dayOfWeek < fWeekendOnset || dayOfWeek > fWeekendCease) {
+ return UCAL_WEEKDAY;
+ }
+ } else {
+ if (dayOfWeek > fWeekendCease && dayOfWeek < fWeekendOnset) {
+ return UCAL_WEEKDAY;
+ }
+ }
+ if (dayOfWeek == fWeekendOnset) {
+ return (fWeekendOnsetMillis == 0) ? UCAL_WEEKEND : UCAL_WEEKEND_ONSET;
+ }
+ if (dayOfWeek == fWeekendCease) {
+ return (fWeekendCeaseMillis >= 86400000) ? UCAL_WEEKEND : UCAL_WEEKEND_CEASE;
+ }
+ return UCAL_WEEKEND;
+}
+
+int32_t
+Calendar::getWeekendTransition(UCalendarDaysOfWeek dayOfWeek, UErrorCode &status) const
+{
+ if (U_FAILURE(status)) {
+ return 0;
+ }
+ if (dayOfWeek == fWeekendOnset) {
+ return fWeekendOnsetMillis;
+ } else if (dayOfWeek == fWeekendCease) {
+ return fWeekendCeaseMillis;
+ }
+ status = U_ILLEGAL_ARGUMENT_ERROR;
+ return 0;
+}
+
+UBool
+Calendar::isWeekend(UDate date, UErrorCode &status) const
+{
+ if (U_FAILURE(status)) {
+ return FALSE;
+ }
+ // clone the calendar so we don't mess with the real one.
+ Calendar *work = (Calendar*)this->clone();
+ if (work == NULL) {
+ status = U_MEMORY_ALLOCATION_ERROR;
+ return FALSE;
+ }
+ UBool result = FALSE;
+ work->setTime(date, status);
+ if (U_SUCCESS(status)) {
+ result = work->isWeekend();
+ }
+ delete work;
+ return result;
+}
+
+UBool
+Calendar::isWeekend(void) const
+{
+ UErrorCode status = U_ZERO_ERROR;
+ UCalendarDaysOfWeek dayOfWeek = (UCalendarDaysOfWeek)get(UCAL_DAY_OF_WEEK, status);
+ UCalendarWeekdayType dayType = getDayOfWeekType(dayOfWeek, status);
+ if (U_SUCCESS(status)) {
+ switch (dayType) {
+ case UCAL_WEEKDAY:
+ return FALSE;
+ case UCAL_WEEKEND:
+ return TRUE;
+ case UCAL_WEEKEND_ONSET:
+ case UCAL_WEEKEND_CEASE:
+ // Use internalGet() because the above call to get() populated all fields.
+ {
+ int32_t millisInDay = internalGet(UCAL_MILLISECONDS_IN_DAY);
+ int32_t transitionMillis = getWeekendTransition(dayOfWeek, status);
+ if (U_SUCCESS(status)) {
+ return (dayType == UCAL_WEEKEND_ONSET)?
+ (millisInDay >= transitionMillis):
+ (millisInDay < transitionMillis);
+ }
+ // else fall through, return FALSE
+ U_FALLTHROUGH;
+ }
+ default:
+ break;
+ }
+ }
+ return FALSE;
+}
+
// ------------------------------------- limits
-int32_t
+int32_t
Calendar::getMinimum(EDateFields field) const {
return getLimit((UCalendarDateFields) field,UCAL_LIMIT_MINIMUM);
}
}
// -------------------------------------
-int32_t
+int32_t
Calendar::getActualMinimum(EDateFields field, UErrorCode& status) const
{
return getActualMinimum((UCalendarDateFields) field, status);
case UCAL_DOW_LOCAL:
case UCAL_JULIAN_DAY:
case UCAL_MILLISECONDS_IN_DAY:
+ case UCAL_IS_LEAP_MONTH:
return kCalendarLimits[field][limitType];
+
+ case UCAL_WEEK_OF_MONTH:
+ {
+ int32_t limit;
+ if (limitType == UCAL_LIMIT_MINIMUM) {
+ limit = getMinimalDaysInFirstWeek() == 1 ? 1 : 0;
+ } else if (limitType == UCAL_LIMIT_GREATEST_MINIMUM) {
+ limit = 1;
+ } else {
+ int32_t minDaysInFirst = getMinimalDaysInFirstWeek();
+ int32_t daysInMonth = handleGetLimit(UCAL_DAY_OF_MONTH, limitType);
+ if (limitType == UCAL_LIMIT_LEAST_MAXIMUM) {
+ limit = (daysInMonth + (7 - minDaysInFirst)) / 7;
+ } else { // limitType == UCAL_LIMIT_MAXIMUM
+ limit = (daysInMonth + 6 + (7 - minDaysInFirst)) / 7;
+ }
+ }
+ return limit;
+ }
default:
return handleGetLimit(field, limitType);
}
// clone the calendar so we don't mess with the real one, and set it to
// accept anything for the field values
Calendar *work = (Calendar*)this->clone();
+ if (work == NULL) {
+ status = U_MEMORY_ALLOCATION_ERROR;
+ return 0;
+ }
work->setLenient(TRUE);
// now try each value from getLeastMaximum() to getMaximum() one by one until
work->set(field, fieldValue);
if (work->get(field, status) != fieldValue) {
break;
- }
+ }
else {
result = fieldValue;
fieldValue--;
/**
- * Ensure that each field is within its valid range by calling {@link
- * #validateField(int)} on each field that has been set. This method
- * should only be called if this calendar is not lenient.
- * @see #isLenient
- * @see #validateField(int)
- */
+* Ensure that each field is within its valid range by calling {@link
+* #validateField(int)} on each field that has been set. This method
+* should only be called if this calendar is not lenient.
+* @see #isLenient
+* @see #validateField(int)
+*/
void Calendar::validateFields(UErrorCode &status) {
- for (int32_t field = 0; U_SUCCESS(status) && (field < UCAL_FIELD_COUNT); field++) {
- if (isSet((UCalendarDateFields)field)) {
- validateField((UCalendarDateFields)field, status);
+ for (int32_t field = 0; U_SUCCESS(status) && (field < UCAL_FIELD_COUNT); field++) {
+ if (fStamp[field] >= kMinimumUserStamp) {
+ validateField((UCalendarDateFields)field, status);
+ }
}
- }
}
/**
- * Validate a single field of this calendar. Subclasses should
- * override this method to validate any calendar-specific fields.
- * Generic fields can be handled by
- * <code>Calendar.validateField()</code>.
- * @see #validateField(int, int, int)
- */
+* Validate a single field of this calendar. Subclasses should
+* override this method to validate any calendar-specific fields.
+* Generic fields can be handled by
+* <code>Calendar.validateField()</code>.
+* @see #validateField(int, int, int)
+*/
void Calendar::validateField(UCalendarDateFields field, UErrorCode &status) {
- int32_t y;
- switch (field) {
- case UCAL_DAY_OF_MONTH:
- y = handleGetExtendedYear();
- validateField(field, 1, handleGetMonthLength(y, internalGet(UCAL_MONTH)), status);
- break;
- case UCAL_DAY_OF_YEAR:
- y = handleGetExtendedYear();
- validateField(field, 1, handleGetYearLength(y), status);
- break;
- case UCAL_DAY_OF_WEEK_IN_MONTH:
- if (internalGet(field) == 0) {
+ int32_t y;
+ switch (field) {
+ case UCAL_DAY_OF_MONTH:
+ y = handleGetExtendedYear();
+ validateField(field, 1, handleGetMonthLength(y, internalGet(UCAL_MONTH)), status);
+ break;
+ case UCAL_DAY_OF_YEAR:
+ y = handleGetExtendedYear();
+ validateField(field, 1, handleGetYearLength(y), status);
+ break;
+ case UCAL_DAY_OF_WEEK_IN_MONTH:
+ if (internalGet(field) == 0) {
#if defined (U_DEBUG_CAL)
- fprintf(stderr, "%s:%d: ILLEGAL ARG because DOW in month cannot be 0\n",
- __FILE__, __LINE__);
+ fprintf(stderr, "%s:%d: ILLEGAL ARG because DOW in month cannot be 0\n",
+ __FILE__, __LINE__);
#endif
- status = U_ILLEGAL_ARGUMENT_ERROR; // "DAY_OF_WEEK_IN_MONTH cannot be zero"
- return;
+ status = U_ILLEGAL_ARGUMENT_ERROR; // "DAY_OF_WEEK_IN_MONTH cannot be zero"
+ return;
+ }
+ validateField(field, getMinimum(field), getMaximum(field), status);
+ break;
+ default:
+ validateField(field, getMinimum(field), getMaximum(field), status);
+ break;
}
- validateField(field, getMinimum(field), getMaximum(field), status);
- break;
- default:
- validateField(field, getMinimum(field), getMaximum(field), status);
- break;
- }
}
/**
- * Validate a single field of this calendar given its minimum and
- * maximum allowed value. If the field is out of range, throw a
- * descriptive <code>IllegalArgumentException</code>. Subclasses may
- * use this method in their implementation of {@link
- * #validateField(int)}.
- */
+* Validate a single field of this calendar given its minimum and
+* maximum allowed value. If the field is out of range, throw a
+* descriptive <code>IllegalArgumentException</code>. Subclasses may
+* use this method in their implementation of {@link
+* #validateField(int)}.
+*/
void Calendar::validateField(UCalendarDateFields field, int32_t min, int32_t max, UErrorCode& status)
{
- int32_t value = fFields[field];
- if (value < min || value > max) {
+ int32_t value = fFields[field];
+ if (value < min || value > max) {
#if defined (U_DEBUG_CAL)
- fprintf(stderr, "%s:%d: ILLEGAL ARG because of field %s out of range %d..%d at %d\n",
- __FILE__, __LINE__,fldName(field),min,max,value);
+ fprintf(stderr, "%s:%d: ILLEGAL ARG because of field %s out of range %d..%d at %d\n",
+ __FILE__, __LINE__,fldName(field),min,max,value);
#endif
- status = U_ILLEGAL_ARGUMENT_ERROR;
- return;
- }
+ status = U_ILLEGAL_ARGUMENT_ERROR;
+ return;
+ }
}
// -------------------------
const UFieldResolutionTable* Calendar::getFieldResolutionTable() const {
- return kDatePrecedence;
+ return kDatePrecedence;
}
UCalendarDateFields Calendar::newerField(UCalendarDateFields defaultField, UCalendarDateFields alternateField) const
{
- if (fStamp[alternateField] > fStamp[defaultField]) {
- return alternateField;
- }
- return defaultField;
+ if (fStamp[alternateField] > fStamp[defaultField]) {
+ return alternateField;
+ }
+ return defaultField;
}
UCalendarDateFields Calendar::resolveFields(const UFieldResolutionTable* precedenceTable) {
- int32_t bestField = UCAL_FIELD_COUNT;
- for (int32_t g=0; precedenceTable[g][0][0] != -1 && (bestField == UCAL_FIELD_COUNT); ++g) {
- int32_t bestStamp = kUnset;
- for (int32_t l=0; precedenceTable[g][l][0] != -1; ++l) {
- int32_t lineStamp = kUnset;
- // Skip over first entry if it is negative
- for (int32_t i=((precedenceTable[g][l][0]>=kResolveRemap)?1:0); precedenceTable[g][l][i]!=-1; ++i) {
- int32_t s = fStamp[precedenceTable[g][l][i]];
- // If any field is unset then don't use this line
- if (s == kUnset) {
- goto linesInGroup;
- } else if(s > lineStamp) {
- lineStamp = s;
+ int32_t bestField = UCAL_FIELD_COUNT;
+ int32_t tempBestField;
+ UBool restoreWeekOfInternalSet = FALSE;
+ if (fStamp[UCAL_DAY_OF_WEEK] >= kMinimumUserStamp &&
+ fStamp[UCAL_DATE] >= kMinimumUserStamp &&
+ fStamp[UCAL_MONTH] >= kMinimumUserStamp &&
+ fStamp[UCAL_WEEK_OF_YEAR] == kInternallySet &&
+ fStamp[UCAL_WEEK_OF_MONTH] == kInternallySet &&
+ fStamp[UCAL_DAY_OF_WEEK_IN_MONTH] == kInternallySet) {
+ int32_t monthStampDelta = fStamp[UCAL_DAY_OF_WEEK] - fStamp[UCAL_MONTH];
+ int32_t dateStampDelta = fStamp[UCAL_DAY_OF_WEEK] - fStamp[UCAL_DATE];
+ if ( monthStampDelta >= 1 && monthStampDelta <= 3 && dateStampDelta >= 1 && dateStampDelta <= 3 ) {
+ // If UCAL_MONTH, UCAL_DATE and UCAL_DAY_OF_WEEK are all explicitly set nearly one after the
+ // other (as when parsing a single date format), with UCAL_DAY_OF_WEEK set most recently, and
+ // if UCAL_WEEK_OF_YEAR, UCAL_WEEK_OF_MONTH, and UCAL_DAY_OF_WEEK_IN_MONTH are all only
+ // implicitly set (as from setTimeInMillis), then for the calculations in this call temporarily
+ // treat UCAL_WEEK_OF_YEAR, UCAL_WEEK_OF_MONTH, and UCAL_DAY_OF_WEEK_IN_MONTH as unset so they
+ // don't combine with UCAL_DAY_OF_WEEK to override the date in UCAL_MONTH & UCAL_DATE. All of
+ // these conditions are to avoid messing up the case of parsing a format with UCAL_DAY_OF_WEEK
+ // alone or in combination with other fields besides UCAL_MONTH, UCAL_DATE. Note: the current
+ // stamp value is incremented each time Calendar::set is called to explicitly set a field value.
+ fStamp[UCAL_WEEK_OF_YEAR] = kUnset;
+ fStamp[UCAL_WEEK_OF_MONTH] = kUnset;
+ fStamp[UCAL_DAY_OF_WEEK_IN_MONTH] = kUnset;
+ restoreWeekOfInternalSet = TRUE;
+ }
+ }
+ for (int32_t g=0; precedenceTable[g][0][0] != -1 && (bestField == UCAL_FIELD_COUNT); ++g) {
+ int32_t bestStamp = kUnset;
+ for (int32_t l=0; precedenceTable[g][l][0] != -1; ++l) {
+ int32_t lineStamp = kUnset;
+ // Skip over first entry if it is negative
+ for (int32_t i=((precedenceTable[g][l][0]>=kResolveRemap)?1:0); precedenceTable[g][l][i]!=-1; ++i) {
+ U_ASSERT(precedenceTable[g][l][i] < UCAL_FIELD_COUNT);
+ int32_t s = fStamp[precedenceTable[g][l][i]];
+ // If any field is unset then don't use this line
+ if (s == kUnset) {
+ goto linesInGroup;
+ } else if(s > lineStamp) {
+ lineStamp = s;
+ }
+ }
+ // Record new maximum stamp & field no.
+ if (lineStamp > bestStamp) {
+ tempBestField = precedenceTable[g][l][0]; // First field refers to entire line
+ if (tempBestField >= kResolveRemap) {
+ tempBestField &= (kResolveRemap-1);
+ // This check is needed to resolve some issues with UCAL_YEAR precedence mapping
+ if (tempBestField != UCAL_DATE || (fStamp[UCAL_WEEK_OF_MONTH] < fStamp[tempBestField])) {
+ bestField = tempBestField;
+ }
+ } else {
+ bestField = tempBestField;
+ }
+
+ if (bestField == tempBestField) {
+ bestStamp = lineStamp;
+ }
+ }
+linesInGroup:
+ ;
}
- }
- // Record new maximum stamp & field no.
- if (lineStamp > bestStamp) {
- bestStamp = lineStamp;
- bestField = precedenceTable[g][l][0]; // First field refers to entire line
- }
- linesInGroup:
- ;
}
- }
- return (UCalendarDateFields)( (bestField>=kResolveRemap)?(bestField&(kResolveRemap-1)):bestField );
+ if (restoreWeekOfInternalSet) {
+ // Restore the field stamps temporarily unset above.
+ fStamp[UCAL_WEEK_OF_YEAR] = kInternallySet;
+ fStamp[UCAL_WEEK_OF_MONTH] = kInternallySet;
+ fStamp[UCAL_DAY_OF_WEEK_IN_MONTH] = kInternallySet;
+ }
+ return (UCalendarDateFields)bestField;
}
const UFieldResolutionTable Calendar::kDatePrecedence[] =
- {
+{
{
- { UCAL_DAY_OF_MONTH, kResolveSTOP },
- { UCAL_WEEK_OF_YEAR, UCAL_DAY_OF_WEEK, kResolveSTOP },
- { UCAL_WEEK_OF_MONTH, UCAL_DAY_OF_WEEK, kResolveSTOP },
- { UCAL_DAY_OF_WEEK_IN_MONTH, UCAL_DAY_OF_WEEK, kResolveSTOP },
- { UCAL_WEEK_OF_YEAR, UCAL_DOW_LOCAL, kResolveSTOP },
- { UCAL_WEEK_OF_MONTH, UCAL_DOW_LOCAL, kResolveSTOP },
- { UCAL_DAY_OF_WEEK_IN_MONTH, UCAL_DOW_LOCAL, kResolveSTOP },
- { UCAL_DAY_OF_YEAR, kResolveSTOP },
- { kResolveRemap | UCAL_DAY_OF_MONTH, UCAL_YEAR, kResolveSTOP }, // if YEAR is set over YEAR_WOY use DAY_OF_MONTH
- { kResolveRemap | UCAL_WEEK_OF_YEAR, UCAL_YEAR_WOY, kResolveSTOP }, // if YEAR_WOY is set, calc based on WEEK_OF_YEAR
- { kResolveSTOP }
+ { UCAL_DAY_OF_MONTH, kResolveSTOP },
+ { UCAL_WEEK_OF_YEAR, UCAL_DAY_OF_WEEK, kResolveSTOP },
+ { UCAL_WEEK_OF_MONTH, UCAL_DAY_OF_WEEK, kResolveSTOP },
+ { UCAL_DAY_OF_WEEK_IN_MONTH, UCAL_DAY_OF_WEEK, kResolveSTOP },
+ { UCAL_WEEK_OF_YEAR, UCAL_DOW_LOCAL, kResolveSTOP },
+ { UCAL_WEEK_OF_MONTH, UCAL_DOW_LOCAL, kResolveSTOP },
+ { UCAL_DAY_OF_WEEK_IN_MONTH, UCAL_DOW_LOCAL, kResolveSTOP },
+ { UCAL_DAY_OF_YEAR, kResolveSTOP },
+ { kResolveRemap | UCAL_DAY_OF_MONTH, UCAL_YEAR, kResolveSTOP }, // if YEAR is set over YEAR_WOY use DAY_OF_MONTH
+ { kResolveRemap | UCAL_WEEK_OF_YEAR, UCAL_YEAR_WOY, kResolveSTOP }, // if YEAR_WOY is set, calc based on WEEK_OF_YEAR
+ { kResolveSTOP }
},
{
- { UCAL_WEEK_OF_YEAR, kResolveSTOP },
- { UCAL_WEEK_OF_MONTH, kResolveSTOP },
- { UCAL_DAY_OF_WEEK_IN_MONTH, kResolveSTOP },
- { kResolveRemap | UCAL_DAY_OF_WEEK_IN_MONTH, UCAL_DAY_OF_WEEK, kResolveSTOP },
- { kResolveRemap | UCAL_DAY_OF_WEEK_IN_MONTH, UCAL_DOW_LOCAL, kResolveSTOP },
- { kResolveSTOP }
- },
+ { UCAL_WEEK_OF_YEAR, kResolveSTOP },
+ { UCAL_WEEK_OF_MONTH, kResolveSTOP },
+ { UCAL_DAY_OF_WEEK_IN_MONTH, kResolveSTOP },
+ { kResolveRemap | UCAL_DAY_OF_WEEK_IN_MONTH, UCAL_DAY_OF_WEEK, kResolveSTOP },
+ { kResolveRemap | UCAL_DAY_OF_WEEK_IN_MONTH, UCAL_DOW_LOCAL, kResolveSTOP },
+ { kResolveSTOP }
+ },
{{kResolveSTOP}}
- };
+};
-const UFieldResolutionTable Calendar::kDOWPrecedence[] =
+const UFieldResolutionTable Calendar::kDOWPrecedence[] =
{
- {
- { UCAL_DAY_OF_WEEK,kResolveSTOP, kResolveSTOP },
- { UCAL_DOW_LOCAL,kResolveSTOP, kResolveSTOP },
- {kResolveSTOP}
- },
- {{kResolveSTOP}}
+ {
+ { UCAL_DAY_OF_WEEK,kResolveSTOP, kResolveSTOP },
+ { UCAL_DOW_LOCAL,kResolveSTOP, kResolveSTOP },
+ {kResolveSTOP}
+ },
+ {{kResolveSTOP}}
};
// precedence for calculating a year
-const UFieldResolutionTable Calendar::kYearPrecedence[] =
-{
- {
- { UCAL_YEAR, kResolveSTOP },
- { UCAL_EXTENDED_YEAR, kResolveSTOP },
- { UCAL_YEAR_WOY, UCAL_WEEK_OF_YEAR, kResolveSTOP }, // YEAR_WOY is useless without WEEK_OF_YEAR
- { kResolveSTOP }
- },
- {{kResolveSTOP}}
+const UFieldResolutionTable Calendar::kYearPrecedence[] =
+{
+ {
+ { UCAL_YEAR, kResolveSTOP },
+ { UCAL_EXTENDED_YEAR, kResolveSTOP },
+ { UCAL_YEAR_WOY, UCAL_WEEK_OF_YEAR, kResolveSTOP }, // YEAR_WOY is useless without WEEK_OF_YEAR
+ { kResolveSTOP }
+ },
+ {{kResolveSTOP}}
};
void Calendar::computeTime(UErrorCode& status) {
- if (!isLenient()) {
- validateFields(status);
- }
+ if (!isLenient()) {
+ validateFields(status);
+ if (U_FAILURE(status)) {
+ return;
+ }
+ }
- // Compute the Julian day
- int32_t julianDay = computeJulianDay();
+ // Compute the Julian day
+ int32_t julianDay = computeJulianDay();
- double millis = Grego::julianDayToMillis(julianDay);
+ double millis = Grego::julianDayToMillis(julianDay);
#if defined (U_DEBUG_CAL)
- // int32_t julianInsanityCheck = (int32_t)Math::floorDivide(millis, kOneDay);
- // julianInsanityCheck += kEpochStartAsJulianDay;
- // if(1 || julianInsanityCheck != julianDay) {
- // fprintf(stderr, "%s:%d- D'oh- computed jules %d, to mills (%s)%.lf, recomputed %d\n",
- // __FILE__, __LINE__, julianDay, millis<0.0?"NEG":"", millis, julianInsanityCheck);
- // }
+ // int32_t julianInsanityCheck = (int32_t)ClockMath::floorDivide(millis, kOneDay);
+ // julianInsanityCheck += kEpochStartAsJulianDay;
+ // if(1 || julianInsanityCheck != julianDay) {
+ // fprintf(stderr, "%s:%d- D'oh- computed jules %d, to mills (%s)%.lf, recomputed %d\n",
+ // __FILE__, __LINE__, julianDay, millis<0.0?"NEG":"", millis, julianInsanityCheck);
+ // }
#endif
- int32_t millisInDay;
-
- // We only use MILLISECONDS_IN_DAY if it has been set by the user.
- // This makes it possible for the caller to set the calendar to a
- // time and call clear(MONTH) to reset the MONTH to January. This
- // is legacy behavior. Without this, clear(MONTH) has no effect,
- // since the internally set JULIAN_DAY is used.
- if (fStamp[UCAL_MILLISECONDS_IN_DAY] >= ((int32_t)kMinimumUserStamp) &&
- newestStamp(UCAL_AM_PM, UCAL_MILLISECOND, kUnset) <= fStamp[UCAL_MILLISECONDS_IN_DAY]) {
- millisInDay = internalGet(UCAL_MILLISECONDS_IN_DAY);
- } else {
- millisInDay = computeMillisInDay();
- }
-
- // Compute the time zone offset and DST offset. There are two potential
- // ambiguities here. We'll assume a 2:00 am (wall time) switchover time
- // for discussion purposes here.
- // 1. The transition into DST. Here, a designated time of 2:00 am - 2:59 am
- // can be in standard or in DST depending. However, 2:00 am is an invalid
- // representation (the representation jumps from 1:59:59 am Std to 3:00:00 am DST).
- // We assume standard time.
- // 2. The transition out of DST. Here, a designated time of 1:00 am - 1:59 am
- // can be in standard or DST. Both are valid representations (the rep
- // jumps from 1:59:59 DST to 1:00:00 Std).
- // Again, we assume standard time.
- // We use the TimeZone object, unless the user has explicitly set the ZONE_OFFSET
- // or DST_OFFSET fields; then we use those fields.
- if (fStamp[UCAL_ZONE_OFFSET] >= ((int32_t)kMinimumUserStamp) ||
- fStamp[UCAL_DST_OFFSET] >= ((int32_t)kMinimumUserStamp)) {
- millisInDay -= internalGet(UCAL_ZONE_OFFSET) + internalGet(UCAL_DST_OFFSET);
- } else {
- millisInDay -= computeZoneOffset(millis, millisInDay,status);
- }
-
- internalSetTime(millis + millisInDay);
+ double millisInDay;
+
+ // We only use MILLISECONDS_IN_DAY if it has been set by the user.
+ // This makes it possible for the caller to set the calendar to a
+ // time and call clear(MONTH) to reset the MONTH to January. This
+ // is legacy behavior. Without this, clear(MONTH) has no effect,
+ // since the internally set JULIAN_DAY is used.
+ if (fStamp[UCAL_MILLISECONDS_IN_DAY] >= ((int32_t)kMinimumUserStamp) &&
+ newestStamp(UCAL_AM_PM, UCAL_MILLISECOND, kUnset) <= fStamp[UCAL_MILLISECONDS_IN_DAY]) {
+ millisInDay = internalGet(UCAL_MILLISECONDS_IN_DAY);
+ } else {
+ millisInDay = computeMillisInDay();
+ }
+
+ UDate t = 0;
+ if (fStamp[UCAL_ZONE_OFFSET] >= ((int32_t)kMinimumUserStamp) || fStamp[UCAL_DST_OFFSET] >= ((int32_t)kMinimumUserStamp)) {
+ t = millis + millisInDay - (internalGet(UCAL_ZONE_OFFSET) + internalGet(UCAL_DST_OFFSET));
+ } else {
+ // Compute the time zone offset and DST offset. There are two potential
+ // ambiguities here. We'll assume a 2:00 am (wall time) switchover time
+ // for discussion purposes here.
+ //
+ // 1. The positive offset change such as transition into DST.
+ // Here, a designated time of 2:00 am - 2:59 am does not actually exist.
+ // For this case, skippedWallTime option specifies the behavior.
+ // For example, 2:30 am is interpreted as;
+ // - WALLTIME_LAST(default): 3:30 am (DST) (interpreting 2:30 am as 31 minutes after 1:59 am (STD))
+ // - WALLTIME_FIRST: 1:30 am (STD) (interpreting 2:30 am as 30 minutes before 3:00 am (DST))
+ // - WALLTIME_NEXT_VALID: 3:00 am (DST) (next valid time after 2:30 am on a wall clock)
+ // 2. The negative offset change such as transition out of DST.
+ // Here, a designated time of 1:00 am - 1:59 am can be in standard or DST. Both are valid
+ // representations (the rep jumps from 1:59:59 DST to 1:00:00 Std).
+ // For this case, repeatedWallTime option specifies the behavior.
+ // For example, 1:30 am is interpreted as;
+ // - WALLTIME_LAST(default): 1:30 am (STD) - latter occurrence
+ // - WALLTIME_FIRST: 1:30 am (DST) - former occurrence
+ //
+ // In addition to above, when calendar is strict (not default), wall time falls into
+ // the skipped time range will be processed as an error case.
+ //
+ // These special cases are mostly handled in #computeZoneOffset(long), except WALLTIME_NEXT_VALID
+ // at positive offset change. The protected method computeZoneOffset(long) is exposed to Calendar
+ // subclass implementations and marked as @stable. Strictly speaking, WALLTIME_NEXT_VALID
+ // should be also handled in the same place, but we cannot change the code flow without deprecating
+ // the protected method.
+ //
+ // We use the TimeZone object, unless the user has explicitly set the ZONE_OFFSET
+ // or DST_OFFSET fields; then we use those fields.
+
+ if (!isLenient() || fSkippedWallTime == UCAL_WALLTIME_NEXT_VALID) {
+ // When strict, invalidate a wall time falls into a skipped wall time range.
+ // When lenient and skipped wall time option is WALLTIME_NEXT_VALID,
+ // the result time will be adjusted to the next valid time (on wall clock).
+ int32_t zoneOffset = computeZoneOffset(millis, millisInDay, status);
+ UDate tmpTime = millis + millisInDay - zoneOffset;
+
+ int32_t raw, dst;
+ fZone->getOffset(tmpTime, FALSE, raw, dst, status);
+
+ if (U_SUCCESS(status)) {
+ // zoneOffset != (raw + dst) only when the given wall time fall into
+ // a skipped wall time range caused by positive zone offset transition.
+ if (zoneOffset != (raw + dst)) {
+ if (!isLenient()) {
+ status = U_ILLEGAL_ARGUMENT_ERROR;
+ } else {
+ U_ASSERT(fSkippedWallTime == UCAL_WALLTIME_NEXT_VALID);
+ // Adjust time to the next valid wall clock time.
+ // At this point, tmpTime is on or after the zone offset transition causing
+ // the skipped time range.
+ UDate immediatePrevTransition;
+ UBool hasTransition = getImmediatePreviousZoneTransition(tmpTime, &immediatePrevTransition, status);
+ if (U_SUCCESS(status) && hasTransition) {
+ t = immediatePrevTransition;
+ }
+ }
+ } else {
+ t = tmpTime;
+ }
+ }
+ } else {
+ t = millis + millisInDay - computeZoneOffset(millis, millisInDay, status);
+ }
+ }
+ if (U_SUCCESS(status)) {
+ internalSetTime(t);
+ }
}
/**
- * Compute the milliseconds in the day from the fields. This is a
- * value from 0 to 23:59:59.999 inclusive, unless fields are out of
- * range, in which case it can be an arbitrary value. This value
- * reflects local zone wall time.
- * @stable ICU 2.0
+ * Find the previous zone transtion near the given time.
*/
-int32_t Calendar::computeMillisInDay() {
- // Do the time portion of the conversion.
-
- int32_t millisInDay = 0;
-
- // Find the best set of fields specifying the time of day. There
- // are only two possibilities here; the HOUR_OF_DAY or the
- // AM_PM and the HOUR.
- int32_t hourOfDayStamp = fStamp[UCAL_HOUR_OF_DAY];
- int32_t hourStamp = (fStamp[UCAL_HOUR] > fStamp[UCAL_AM_PM])?fStamp[UCAL_HOUR]:fStamp[UCAL_AM_PM];
- int32_t bestStamp = (hourStamp > hourOfDayStamp) ? hourStamp : hourOfDayStamp;
-
- // Hours
- if (bestStamp != kUnset) {
- if (bestStamp == hourOfDayStamp) {
- // Don't normalize here; let overflow bump into the next period.
- // This is consistent with how we handle other fields.
- millisInDay += internalGet(UCAL_HOUR_OF_DAY);
+UBool Calendar::getImmediatePreviousZoneTransition(UDate base, UDate *transitionTime, UErrorCode& status) const {
+ BasicTimeZone *btz = getBasicTimeZone();
+ if (btz) {
+ TimeZoneTransition trans;
+ UBool hasTransition = btz->getPreviousTransition(base, TRUE, trans);
+ if (hasTransition) {
+ *transitionTime = trans.getTime();
+ return TRUE;
+ } else {
+ // Could not find any transitions.
+ // Note: This should never happen.
+ status = U_INTERNAL_PROGRAM_ERROR;
+ }
} else {
- // Don't normalize here; let overflow bump into the next period.
- // This is consistent with how we handle other fields.
- millisInDay += internalGet(UCAL_HOUR);
- millisInDay += 12 * internalGet(UCAL_AM_PM); // Default works for unset AM_PM
- }
- }
-
- // We use the fact that unset == 0; we start with millisInDay
- // == HOUR_OF_DAY.
- millisInDay *= 60;
- millisInDay += internalGet(UCAL_MINUTE); // now have minutes
- millisInDay *= 60;
- millisInDay += internalGet(UCAL_SECOND); // now have seconds
- millisInDay *= 1000;
- millisInDay += internalGet(MILLISECOND); // now have millis
-
- return millisInDay;
+ // If not BasicTimeZone, return unsupported error for now.
+ // TODO: We may support non-BasicTimeZone in future.
+ status = U_UNSUPPORTED_ERROR;
+ }
+ return FALSE;
}
/**
- * This method can assume EXTENDED_YEAR has been set.
- * @param millis milliseconds of the date fields
- * @param millisInDay milliseconds of the time fields; may be out
- * or range.
- * @stable ICU 2.0
- */
-int32_t Calendar::computeZoneOffset(double millis, int32_t millisInDay, UErrorCode &ec) {
- int32_t rawOffset, dstOffset;
- getTimeZone().getOffset(millis+millisInDay, TRUE, rawOffset, dstOffset, ec);
- return rawOffset + dstOffset;
- // Note: Because we pass in wall millisInDay, rather than
- // standard millisInDay, we interpret "1:00 am" on the day
- // of cessation of DST as "1:00 am Std" (assuming the time
- // of cessation is 2:00 am).
-}
-
-int32_t Calendar::computeJulianDay()
-{
- // We want to see if any of the date fields is newer than the
- // JULIAN_DAY. If not, then we use JULIAN_DAY. If so, then we do
- // the normal resolution. We only use JULIAN_DAY if it has been
- // set by the user. This makes it possible for the caller to set
- // the calendar to a time and call clear(MONTH) to reset the MONTH
- // to January. This is legacy behavior. Without this,
- // clear(MONTH) has no effect, since the internally set JULIAN_DAY
- // is used.
- if (fStamp[UCAL_JULIAN_DAY] >= (int32_t)kMinimumUserStamp) {
- int32_t bestStamp = newestStamp(UCAL_ERA, UCAL_DAY_OF_WEEK_IN_MONTH, kUnset);
- bestStamp = newestStamp(UCAL_YEAR_WOY, UCAL_EXTENDED_YEAR, bestStamp);
- if (bestStamp <= fStamp[UCAL_JULIAN_DAY]) {
- return internalGet(UCAL_JULIAN_DAY);
- }
- }
-
- UCalendarDateFields bestField = resolveFields(getFieldResolutionTable());
- if (bestField == UCAL_FIELD_COUNT) {
- bestField = UCAL_DAY_OF_MONTH;
- }
-
- return handleComputeJulianDay(bestField);
+* Compute the milliseconds in the day from the fields. This is a
+* value from 0 to 23:59:59.999 inclusive, unless fields are out of
+* range, in which case it can be an arbitrary value. This value
+* reflects local zone wall time.
+* @stable ICU 2.0
+*/
+double Calendar::computeMillisInDay() {
+ // Do the time portion of the conversion.
+
+ double millisInDay = 0;
+
+ // Find the best set of fields specifying the time of day. There
+ // are only two possibilities here; the HOUR_OF_DAY or the
+ // AM_PM and the HOUR.
+ int32_t hourOfDayStamp = fStamp[UCAL_HOUR_OF_DAY];
+ int32_t hourStamp = (fStamp[UCAL_HOUR] > fStamp[UCAL_AM_PM])?fStamp[UCAL_HOUR]:fStamp[UCAL_AM_PM];
+ int32_t bestStamp = (hourStamp > hourOfDayStamp) ? hourStamp : hourOfDayStamp;
+
+ // Hours
+ if (bestStamp != kUnset) {
+ if (bestStamp == hourOfDayStamp) {
+ // Don't normalize here; let overflow bump into the next period.
+ // This is consistent with how we handle other fields.
+ millisInDay += internalGet(UCAL_HOUR_OF_DAY);
+ } else {
+ // Don't normalize here; let overflow bump into the next period.
+ // This is consistent with how we handle other fields.
+ millisInDay += internalGet(UCAL_HOUR);
+ millisInDay += 12 * internalGet(UCAL_AM_PM); // Default works for unset AM_PM
+ }
+ }
+
+ // We use the fact that unset == 0; we start with millisInDay
+ // == HOUR_OF_DAY.
+ millisInDay *= 60;
+ millisInDay += internalGet(UCAL_MINUTE); // now have minutes
+ millisInDay *= 60;
+ millisInDay += internalGet(UCAL_SECOND); // now have seconds
+ millisInDay *= 1000;
+ millisInDay += internalGet(UCAL_MILLISECOND); // now have millis
+
+ return millisInDay;
+}
+
+/**
+* This method can assume EXTENDED_YEAR has been set.
+* @param millis milliseconds of the date fields
+* @param millisInDay milliseconds of the time fields; may be out
+* or range.
+* @stable ICU 2.0
+*/
+int32_t Calendar::computeZoneOffset(double millis, double millisInDay, UErrorCode &ec) {
+ int32_t rawOffset, dstOffset;
+ UDate wall = millis + millisInDay;
+ BasicTimeZone* btz = getBasicTimeZone();
+ if (btz) {
+ int duplicatedTimeOpt = (fRepeatedWallTime == UCAL_WALLTIME_FIRST) ? BasicTimeZone::kFormer : BasicTimeZone::kLatter;
+ int nonExistingTimeOpt = (fSkippedWallTime == UCAL_WALLTIME_FIRST) ? BasicTimeZone::kLatter : BasicTimeZone::kFormer;
+ btz->getOffsetFromLocal(wall, nonExistingTimeOpt, duplicatedTimeOpt, rawOffset, dstOffset, ec);
+ } else {
+ const TimeZone& tz = getTimeZone();
+ // By default, TimeZone::getOffset behaves UCAL_WALLTIME_LAST for both.
+ tz.getOffset(wall, TRUE, rawOffset, dstOffset, ec);
+
+ UBool sawRecentNegativeShift = FALSE;
+ if (fRepeatedWallTime == UCAL_WALLTIME_FIRST) {
+ // Check if the given wall time falls into repeated time range
+ UDate tgmt = wall - (rawOffset + dstOffset);
+
+ // Any negative zone transition within last 6 hours?
+ // Note: The maximum historic negative zone transition is -3 hours in the tz database.
+ // 6 hour window would be sufficient for this purpose.
+ int32_t tmpRaw, tmpDst;
+ tz.getOffset(tgmt - 6*60*60*1000, FALSE, tmpRaw, tmpDst, ec);
+ int32_t offsetDelta = (rawOffset + dstOffset) - (tmpRaw + tmpDst);
+
+ U_ASSERT(offsetDelta < -6*60*60*1000);
+ if (offsetDelta < 0) {
+ sawRecentNegativeShift = TRUE;
+ // Negative shift within last 6 hours. When UCAL_WALLTIME_FIRST is used and the given wall time falls
+ // into the repeated time range, use offsets before the transition.
+ // Note: If it does not fall into the repeated time range, offsets remain unchanged below.
+ tz.getOffset(wall + offsetDelta, TRUE, rawOffset, dstOffset, ec);
+ }
+ }
+ if (!sawRecentNegativeShift && fSkippedWallTime == UCAL_WALLTIME_FIRST) {
+ // When skipped wall time option is WALLTIME_FIRST,
+ // recalculate offsets from the resolved time (non-wall).
+ // When the given wall time falls into skipped wall time,
+ // the offsets will be based on the zone offsets AFTER
+ // the transition (which means, earliest possibe interpretation).
+ UDate tgmt = wall - (rawOffset + dstOffset);
+ tz.getOffset(tgmt, FALSE, rawOffset, dstOffset, ec);
+ }
+ }
+ return rawOffset + dstOffset;
+}
+
+int32_t Calendar::computeJulianDay()
+{
+ // We want to see if any of the date fields is newer than the
+ // JULIAN_DAY. If not, then we use JULIAN_DAY. If so, then we do
+ // the normal resolution. We only use JULIAN_DAY if it has been
+ // set by the user. This makes it possible for the caller to set
+ // the calendar to a time and call clear(MONTH) to reset the MONTH
+ // to January. This is legacy behavior. Without this,
+ // clear(MONTH) has no effect, since the internally set JULIAN_DAY
+ // is used.
+ if (fStamp[UCAL_JULIAN_DAY] >= (int32_t)kMinimumUserStamp) {
+ int32_t bestStamp = newestStamp(UCAL_ERA, UCAL_DAY_OF_WEEK_IN_MONTH, kUnset);
+ bestStamp = newestStamp(UCAL_YEAR_WOY, UCAL_EXTENDED_YEAR, bestStamp);
+ if (bestStamp <= fStamp[UCAL_JULIAN_DAY]) {
+ return internalGet(UCAL_JULIAN_DAY);
+ }
+ }
+
+ UCalendarDateFields bestField = resolveFields(getFieldResolutionTable());
+ if (bestField == UCAL_FIELD_COUNT) {
+ bestField = UCAL_DAY_OF_MONTH;
+ }
+
+ return handleComputeJulianDay(bestField);
}
// -------------------------------------------
int32_t Calendar::handleComputeJulianDay(UCalendarDateFields bestField) {
- UBool useMonth = (bestField == UCAL_DAY_OF_MONTH ||
- bestField == UCAL_WEEK_OF_MONTH ||
- bestField == UCAL_DAY_OF_WEEK_IN_MONTH);
- int32_t year;
+ UBool useMonth = (bestField == UCAL_DAY_OF_MONTH ||
+ bestField == UCAL_WEEK_OF_MONTH ||
+ bestField == UCAL_DAY_OF_WEEK_IN_MONTH);
+ int32_t year;
+
+ if (bestField == UCAL_WEEK_OF_YEAR && newerField(UCAL_YEAR_WOY, UCAL_YEAR) == UCAL_YEAR_WOY) {
+ year = internalGet(UCAL_YEAR_WOY);
+ } else {
+ year = handleGetExtendedYear();
+ }
- if (bestField == UCAL_WEEK_OF_YEAR) {
- year = internalGet(UCAL_YEAR_WOY, handleGetExtendedYear());
- internalSet(UCAL_EXTENDED_YEAR, year);
- } else {
- year = handleGetExtendedYear();
internalSet(UCAL_EXTENDED_YEAR, year);
- }
-#if defined (U_DEBUG_CAL)
- fprintf(stderr, "%s:%d: bestField= %s - y=%d\n", __FILE__, __LINE__, fldName(bestField), year);
-#endif
+#if defined (U_DEBUG_CAL)
+ fprintf(stderr, "%s:%d: bestField= %s - y=%d\n", __FILE__, __LINE__, fldName(bestField), year);
+#endif
+
+ // Get the Julian day of the day BEFORE the start of this year.
+ // If useMonth is true, get the day before the start of the month.
- // Get the Julian day of the day BEFORE the start of this year.
- // If useMonth is true, get the day before the start of the month.
-
- // give calendar subclass a chance to have a default 'first' month
- int32_t month;
+ // give calendar subclass a chance to have a default 'first' month
+ int32_t month;
- if(isSet(UCAL_MONTH)) {
- month = internalGet(UCAL_MONTH);
- } else {
- month = getDefaultMonthInYear();
- }
+ if(isSet(UCAL_MONTH)) {
+ month = internalGet(UCAL_MONTH);
+ } else {
+ month = getDefaultMonthInYear(year);
+ }
- int32_t julianDay = handleComputeMonthStart(year, useMonth ? month : 0, useMonth);
+ int32_t julianDay = handleComputeMonthStart(year, useMonth ? month : 0, useMonth);
- if (bestField == UCAL_DAY_OF_MONTH) {
+ if (bestField == UCAL_DAY_OF_MONTH) {
- // give calendar subclass a chance to have a default 'first' dom
- int32_t dayOfMonth;
- if(isSet(UCAL_DAY_OF_MONTH)) {
- dayOfMonth = internalGet(UCAL_DAY_OF_MONTH,1);
- } else {
- dayOfMonth = getDefaultDayInMonth(month);
- }
- return julianDay + dayOfMonth;
- }
-
- if (bestField == UCAL_DAY_OF_YEAR) {
- return julianDay + internalGet(UCAL_DAY_OF_YEAR);
- }
-
- int32_t firstDayOfWeek = getFirstDayOfWeek(); // Localized fdw
-
- // At this point julianDay is the 0-based day BEFORE the first day of
- // January 1, year 1 of the given calendar. If julianDay == 0, it
- // specifies (Jan. 1, 1) - 1, in whatever calendar we are using (Julian
- // or Gregorian). (or it is before the month we are in, if useMonth is True)
-
- // At this point we need to process the WEEK_OF_MONTH or
- // WEEK_OF_YEAR, which are similar, or the DAY_OF_WEEK_IN_MONTH.
- // First, perform initial shared computations. These locate the
- // first week of the period.
-
- // Get the 0-based localized DOW of day one of the month or year.
- // Valid range 0..6.
- int32_t first = julianDayToDayOfWeek(julianDay + 1) - firstDayOfWeek;
- if (first < 0) {
- first += 7;
- }
-
- int32_t dowLocal = getLocalDOW();
-
- // Find the first target DOW (dowLocal) in the month or year.
- // Actually, it may be just before the first of the month or year.
- // It will be an integer from -5..7.
- int32_t date = 1 - first + dowLocal;
-
- if (bestField == UCAL_DAY_OF_WEEK_IN_MONTH) {
- // Adjust the target DOW to be in the month or year.
- if (date < 1) {
- date += 7;
- }
-
- // The only trickiness occurs if the day-of-week-in-month is
- // negative.
- int32_t dim = internalGet(UCAL_DAY_OF_WEEK_IN_MONTH, 1);
- if (dim >= 0) {
- date += 7*(dim - 1);
-
+ // give calendar subclass a chance to have a default 'first' dom
+ int32_t dayOfMonth;
+ if(isSet(UCAL_DAY_OF_MONTH)) {
+ dayOfMonth = internalGet(UCAL_DAY_OF_MONTH,1);
+ } else {
+ dayOfMonth = getDefaultDayInMonth(year, month);
+ }
+ return julianDay + dayOfMonth;
+ }
+
+ if (bestField == UCAL_DAY_OF_YEAR) {
+ return julianDay + internalGet(UCAL_DAY_OF_YEAR);
+ }
+
+ int32_t firstDayOfWeek = getFirstDayOfWeek(); // Localized fdw
+
+ // At this point julianDay is the 0-based day BEFORE the first day of
+ // January 1, year 1 of the given calendar. If julianDay == 0, it
+ // specifies (Jan. 1, 1) - 1, in whatever calendar we are using (Julian
+ // or Gregorian). (or it is before the month we are in, if useMonth is True)
+
+ // At this point we need to process the WEEK_OF_MONTH or
+ // WEEK_OF_YEAR, which are similar, or the DAY_OF_WEEK_IN_MONTH.
+ // First, perform initial shared computations. These locate the
+ // first week of the period.
+
+ // Get the 0-based localized DOW of day one of the month or year.
+ // Valid range 0..6.
+ int32_t first = julianDayToDayOfWeek(julianDay + 1) - firstDayOfWeek;
+ if (first < 0) {
+ first += 7;
+ }
+
+ int32_t dowLocal = getLocalDOW();
+
+ // Find the first target DOW (dowLocal) in the month or year.
+ // Actually, it may be just before the first of the month or year.
+ // It will be an integer from -5..7.
+ int32_t date = 1 - first + dowLocal;
+
+ if (bestField == UCAL_DAY_OF_WEEK_IN_MONTH) {
+ // Adjust the target DOW to be in the month or year.
+ if (date < 1) {
+ date += 7;
+ }
+
+ // The only trickiness occurs if the day-of-week-in-month is
+ // negative.
+ int32_t dim = internalGet(UCAL_DAY_OF_WEEK_IN_MONTH, 1);
+ if (dim >= 0) {
+ date += 7*(dim - 1);
+
+ } else {
+ // Move date to the last of this day-of-week in this month,
+ // then back up as needed. If dim==-1, we don't back up at
+ // all. If dim==-2, we back up once, etc. Don't back up
+ // past the first of the given day-of-week in this month.
+ // Note that we handle -2, -3, etc. correctly, even though
+ // values < -1 are technically disallowed.
+ int32_t m = internalGet(UCAL_MONTH, UCAL_JANUARY);
+ int32_t monthLength = handleGetMonthLength(year, m);
+ date += ((monthLength - date) / 7 + dim + 1) * 7;
+ }
} else {
- // Move date to the last of this day-of-week in this month,
- // then back up as needed. If dim==-1, we don't back up at
- // all. If dim==-2, we back up once, etc. Don't back up
- // past the first of the given day-of-week in this month.
- // Note that we handle -2, -3, etc. correctly, even though
- // values < -1 are technically disallowed.
- int32_t m = internalGet(UCAL_MONTH, UCAL_JANUARY);
- int32_t monthLength = handleGetMonthLength(year, m);
- date += ((monthLength - date) / 7 + dim + 1) * 7;
- }
- } else {
-#if defined (U_DEBUG_CAL)
- fprintf(stderr, "%s:%d - bf= %s\n", __FILE__, __LINE__, fldName(bestField));
-#endif
-
- if(bestField == UCAL_WEEK_OF_YEAR) { // ------------------------------------- WOY -------------
- if(!isSet(UCAL_YEAR_WOY) || // YWOY not set at all or
- ( (resolveFields(kYearPrecedence) != UCAL_YEAR_WOY) // YWOY doesn't have precedence
- && (fStamp[UCAL_YEAR_WOY]!=kInternallySet) ) ) { // (excluding where all fields are internally set - then YWOY is used)
- // need to be sure to stay in 'real' year.
- int32_t woy = internalGet(bestField);
-
- int32_t nextJulianDay = handleComputeMonthStart(year+1, 0, FALSE); // jd of day before jan 1
- int32_t nextFirst = julianDayToDayOfWeek(nextJulianDay + 1) - firstDayOfWeek;
-
- if (nextFirst < 0) { // 0..6 ldow of Jan 1
- nextFirst += 7;
- }
-
- if(woy==1) { // FIRST WEEK ---------------------------------
-#if defined (U_DEBUG_CAL)
- fprintf(stderr, "%s:%d - woy=%d, yp=%d, nj(%d)=%d, nf=%d", __FILE__, __LINE__,
- internalGet(bestField), resolveFields(kYearPrecedence), year+1,
- nextJulianDay, nextFirst);
-
- fprintf(stderr, " next: %d DFW, min=%d \n", (7-nextFirst), getMinimalDaysInFirstWeek() );
-#endif
-
- // nextFirst is now the localized DOW of Jan 1 of y-woy+1
- if((nextFirst > 0) && // Jan 1 starts on FDOW
- (7-nextFirst) >= getMinimalDaysInFirstWeek()) { // or enough days in the week
- // Jan 1 of (yearWoy+1) is in yearWoy+1 - recalculate JD to next year
-#if defined (U_DEBUG_CAL)
- fprintf(stderr, "%s:%d - was going to move JD from %d to %d [d%d]\n", __FILE__, __LINE__,
- julianDay, nextJulianDay, (nextJulianDay-julianDay));
-#endif
- julianDay = nextJulianDay;
-
- // recalculate 'first' [0-based local dow of jan 1]
- first = julianDayToDayOfWeek(julianDay + 1) - firstDayOfWeek;
- if (first < 0) {
- first += 7;
- }
- // recalculate date.
- date = 1 - first + dowLocal;
- }
- } else if(woy>=getLeastMaximum(bestField)) {
- // could be in the last week- find out if this JD would overstep
- int32_t testDate = date;
- if ((7 - first) < getMinimalDaysInFirstWeek()) {
- testDate += 7;
- }
-
- // Now adjust for the week number.
- testDate += 7 * (woy - 1);
-
-#if defined (U_DEBUG_CAL)
- fprintf(stderr, "%s:%d - y=%d, y-1=%d doy%d, njd%d (C.F. %d)\n",
- __FILE__, __LINE__, year, year-1, testDate, julianDay+testDate, nextJulianDay);
+#if defined (U_DEBUG_CAL)
+ fprintf(stderr, "%s:%d - bf= %s\n", __FILE__, __LINE__, fldName(bestField));
#endif
- if(julianDay+testDate > nextJulianDay) { // is it past Dec 31? (nextJulianDay is day BEFORE year+1's Jan 1)
- // Fire up the calculating engines.. retry YWOY = (year-1)
- julianDay = handleComputeMonthStart(year-1, 0, FALSE); // jd before Jan 1 of previous year
- first = julianDayToDayOfWeek(julianDay + 1) - firstDayOfWeek; // 0 based local dow of first week
-
- if(first < 0) { // 0..6
- first += 7;
- }
- date = 1 - first + dowLocal;
-#if defined (U_DEBUG_CAL)
- fprintf(stderr, "%s:%d - date now %d, jd%d, ywoy%d\n",
- __FILE__, __LINE__, date, julianDay, year-1);
+ if(bestField == UCAL_WEEK_OF_YEAR) { // ------------------------------------- WOY -------------
+ if(!isSet(UCAL_YEAR_WOY) || // YWOY not set at all or
+ ( (resolveFields(kYearPrecedence) != UCAL_YEAR_WOY) // YWOY doesn't have precedence
+ && (fStamp[UCAL_YEAR_WOY]!=kInternallySet) ) ) // (excluding where all fields are internally set - then YWOY is used)
+ {
+ // need to be sure to stay in 'real' year.
+ int32_t woy = internalGet(bestField);
+
+ int32_t nextJulianDay = handleComputeMonthStart(year+1, 0, FALSE); // jd of day before jan 1
+ int32_t nextFirst = julianDayToDayOfWeek(nextJulianDay + 1) - firstDayOfWeek;
+
+ if (nextFirst < 0) { // 0..6 ldow of Jan 1
+ nextFirst += 7;
+ }
+
+ if(woy==1) { // FIRST WEEK ---------------------------------
+#if defined (U_DEBUG_CAL)
+ fprintf(stderr, "%s:%d - woy=%d, yp=%d, nj(%d)=%d, nf=%d", __FILE__, __LINE__,
+ internalGet(bestField), resolveFields(kYearPrecedence), year+1,
+ nextJulianDay, nextFirst);
+
+ fprintf(stderr, " next: %d DFW, min=%d \n", (7-nextFirst), getMinimalDaysInFirstWeek() );
+#endif
+
+ // nextFirst is now the localized DOW of Jan 1 of y-woy+1
+ if((nextFirst > 0) && // Jan 1 starts on FDOW
+ (7-nextFirst) >= getMinimalDaysInFirstWeek()) // or enough days in the week
+ {
+ // Jan 1 of (yearWoy+1) is in yearWoy+1 - recalculate JD to next year
+#if defined (U_DEBUG_CAL)
+ fprintf(stderr, "%s:%d - was going to move JD from %d to %d [d%d]\n", __FILE__, __LINE__,
+ julianDay, nextJulianDay, (nextJulianDay-julianDay));
+#endif
+ julianDay = nextJulianDay;
+
+ // recalculate 'first' [0-based local dow of jan 1]
+ first = julianDayToDayOfWeek(julianDay + 1) - firstDayOfWeek;
+ if (first < 0) {
+ first += 7;
+ }
+ // recalculate date.
+ date = 1 - first + dowLocal;
+ }
+ } else if(woy>=getLeastMaximum(bestField)) {
+ // could be in the last week- find out if this JD would overstep
+ int32_t testDate = date;
+ if ((7 - first) < getMinimalDaysInFirstWeek()) {
+ testDate += 7;
+ }
+
+ // Now adjust for the week number.
+ testDate += 7 * (woy - 1);
+
+#if defined (U_DEBUG_CAL)
+ fprintf(stderr, "%s:%d - y=%d, y-1=%d doy%d, njd%d (C.F. %d)\n",
+ __FILE__, __LINE__, year, year-1, testDate, julianDay+testDate, nextJulianDay);
+#endif
+ if(julianDay+testDate > nextJulianDay) { // is it past Dec 31? (nextJulianDay is day BEFORE year+1's Jan 1)
+ // Fire up the calculating engines.. retry YWOY = (year-1)
+ julianDay = handleComputeMonthStart(year-1, 0, FALSE); // jd before Jan 1 of previous year
+ first = julianDayToDayOfWeek(julianDay + 1) - firstDayOfWeek; // 0 based local dow of first week
+
+ if(first < 0) { // 0..6
+ first += 7;
+ }
+ date = 1 - first + dowLocal;
+
+#if defined (U_DEBUG_CAL)
+ fprintf(stderr, "%s:%d - date now %d, jd%d, ywoy%d\n",
+ __FILE__, __LINE__, date, julianDay, year-1);
#endif
-
- } /* correction needed */
- } /* leastmaximum */
- } /* resolvefields(year) != year_woy */
- } /* bestfield != week_of_year */
-
- // assert(bestField == WEEK_OF_MONTH || bestField == WEEK_OF_YEAR)
- // Adjust for minimal days in first week
- if ((7 - first) < getMinimalDaysInFirstWeek()) {
- date += 7;
- }
-
- // Now adjust for the week number.
- date += 7 * (internalGet(bestField) - 1);
- }
-
- return julianDay + date;
+
+ } /* correction needed */
+ } /* leastmaximum */
+ } /* resolvefields(year) != year_woy */
+ } /* bestfield != week_of_year */
+
+ // assert(bestField == WEEK_OF_MONTH || bestField == WEEK_OF_YEAR)
+ // Adjust for minimal days in first week
+ if ((7 - first) < getMinimalDaysInFirstWeek()) {
+ date += 7;
+ }
+
+ // Now adjust for the week number.
+ date += 7 * (internalGet(bestField) - 1);
+ }
+
+ return julianDay + date;
}
int32_t
-Calendar::getDefaultMonthInYear()
+Calendar::getDefaultMonthInYear(int32_t /*eyear*/)
{
return 0;
}
int32_t
-Calendar::getDefaultDayInMonth(int32_t /*month*/)
+Calendar::getDefaultDayInMonth(int32_t /*eyear*/, int32_t /*month*/)
{
return 1;
}
int32_t Calendar::getLocalDOW()
{
// Get zero-based localized DOW, valid range 0..6. This is the DOW
- // we are looking for.
- int32_t dowLocal = 0;
- switch (resolveFields(kDOWPrecedence)) {
- case DAY_OF_WEEK:
- dowLocal = internalGet(UCAL_DAY_OF_WEEK) - fFirstDayOfWeek;
- break;
- case DOW_LOCAL:
- dowLocal = internalGet(UCAL_DOW_LOCAL) - 1;
- break;
- default:
- break;
- }
- dowLocal = dowLocal % 7;
- if (dowLocal < 0) {
- dowLocal += 7;
- }
- return dowLocal;
+ // we are looking for.
+ int32_t dowLocal = 0;
+ switch (resolveFields(kDOWPrecedence)) {
+ case UCAL_DAY_OF_WEEK:
+ dowLocal = internalGet(UCAL_DAY_OF_WEEK) - fFirstDayOfWeek;
+ break;
+ case UCAL_DOW_LOCAL:
+ dowLocal = internalGet(UCAL_DOW_LOCAL) - 1;
+ break;
+ default:
+ break;
+ }
+ dowLocal = dowLocal % 7;
+ if (dowLocal < 0) {
+ dowLocal += 7;
+ }
+ return dowLocal;
}
int32_t Calendar::handleGetExtendedYearFromWeekFields(int32_t yearWoy, int32_t woy)
{
- // We have UCAL_YEAR_WOY and UCAL_WEEK_OF_YEAR - from those, determine
- // what year we fall in, so that other code can set it properly.
- // (code borrowed from computeWeekFields and handleComputeJulianDay)
- //return yearWoy;
-
- // First, we need a reliable DOW.
- UCalendarDateFields bestField = resolveFields(kDatePrecedence); // !! Note: if subclasses have a different table, they should override handleGetExtendedYearFromWeekFields
-
- // Now, a local DOW
- int32_t dowLocal = getLocalDOW(); // 0..6
- int32_t firstDayOfWeek = getFirstDayOfWeek(); // Localized fdw
- int32_t jan1Start = handleComputeMonthStart(yearWoy, 0, FALSE);
- int32_t nextJan1Start = handleComputeMonthStart(yearWoy+1, 0, FALSE); // next year's Jan1 start
-
- // At this point julianDay is the 0-based day BEFORE the first day of
- // January 1, year 1 of the given calendar. If julianDay == 0, it
- // specifies (Jan. 1, 1) - 1, in whatever calendar we are using (Julian
- // or Gregorian). (or it is before the month we are in, if useMonth is True)
-
- // At this point we need to process the WEEK_OF_MONTH or
- // WEEK_OF_YEAR, which are similar, or the DAY_OF_WEEK_IN_MONTH.
- // First, perform initial shared computations. These locate the
- // first week of the period.
-
- // Get the 0-based localized DOW of day one of the month or year.
- // Valid range 0..6.
- int32_t first = julianDayToDayOfWeek(jan1Start + 1) - firstDayOfWeek;
- if (first < 0) {
- first += 7;
- }
- int32_t nextFirst = julianDayToDayOfWeek(nextJan1Start + 1) - firstDayOfWeek;
- if (nextFirst < 0) {
- nextFirst += 7;
- }
-
- int32_t minDays = getMinimalDaysInFirstWeek();
- UBool jan1InPrevYear = FALSE; // January 1st in the year of WOY is the 1st week? (i.e. first week is < minimal )
- //UBool nextJan1InPrevYear = FALSE; // January 1st of Year of WOY + 1 is in the first week?
-
- if((7 - first) < minDays) {
- jan1InPrevYear = TRUE;
- }
-
-// if((7 - nextFirst) < minDays) {
-// nextJan1InPrevYear = TRUE;
-// }
-
- switch(bestField) {
- case UCAL_WEEK_OF_YEAR:
- if(woy == 1) {
- if(jan1InPrevYear == TRUE) {
- // the first week of January is in the previous year
- // therefore WOY1 is always solidly within yearWoy
- return yearWoy;
- } else {
- // First WOY is split between two years
- if( dowLocal < first) { // we are prior to Jan 1
- return yearWoy-1; // previous year
- } else {
- return yearWoy; // in this year
- }
- }
- } else if(woy >= getLeastMaximum(bestField)) {
- // we _might_ be in the last week..
- int32_t jd = // Calculate JD of our target day:
- jan1Start + // JD of Jan 1
- (7-first) + // days in the first week (Jan 1.. )
- (woy-1)*7 + // add the weeks of the year
- dowLocal; // the local dow (0..6) of last week
- if(jan1InPrevYear==FALSE) {
- jd -= 7; // woy already includes Jan 1's week.
- }
-
- if( (jd+1) >= nextJan1Start ) {
- // we are in week 52 or 53 etc. - actual year is yearWoy+1
- return yearWoy+1;
- } else {
- // still in yearWoy;
- return yearWoy;
- }
- } else {
- // we're not possibly in the last week -must be ywoy
- return yearWoy;
- }
- break;
+ // We have UCAL_YEAR_WOY and UCAL_WEEK_OF_YEAR - from those, determine
+ // what year we fall in, so that other code can set it properly.
+ // (code borrowed from computeWeekFields and handleComputeJulianDay)
+ //return yearWoy;
+
+ // First, we need a reliable DOW.
+ UCalendarDateFields bestField = resolveFields(kDatePrecedence); // !! Note: if subclasses have a different table, they should override handleGetExtendedYearFromWeekFields
+
+ // Now, a local DOW
+ int32_t dowLocal = getLocalDOW(); // 0..6
+ int32_t firstDayOfWeek = getFirstDayOfWeek(); // Localized fdw
+ int32_t jan1Start = handleComputeMonthStart(yearWoy, 0, FALSE);
+ int32_t nextJan1Start = handleComputeMonthStart(yearWoy+1, 0, FALSE); // next year's Jan1 start
+
+ // At this point julianDay is the 0-based day BEFORE the first day of
+ // January 1, year 1 of the given calendar. If julianDay == 0, it
+ // specifies (Jan. 1, 1) - 1, in whatever calendar we are using (Julian
+ // or Gregorian). (or it is before the month we are in, if useMonth is True)
+
+ // At this point we need to process the WEEK_OF_MONTH or
+ // WEEK_OF_YEAR, which are similar, or the DAY_OF_WEEK_IN_MONTH.
+ // First, perform initial shared computations. These locate the
+ // first week of the period.
+
+ // Get the 0-based localized DOW of day one of the month or year.
+ // Valid range 0..6.
+ int32_t first = julianDayToDayOfWeek(jan1Start + 1) - firstDayOfWeek;
+ if (first < 0) {
+ first += 7;
+ }
+
+ //// (nextFirst was not used below)
+ // int32_t nextFirst = julianDayToDayOfWeek(nextJan1Start + 1) - firstDayOfWeek;
+ // if (nextFirst < 0) {
+ // nextFirst += 7;
+ //}
+
+ int32_t minDays = getMinimalDaysInFirstWeek();
+ UBool jan1InPrevYear = FALSE; // January 1st in the year of WOY is the 1st week? (i.e. first week is < minimal )
+ //UBool nextJan1InPrevYear = FALSE; // January 1st of Year of WOY + 1 is in the first week?
+
+ if((7 - first) < minDays) {
+ jan1InPrevYear = TRUE;
+ }
+
+ // if((7 - nextFirst) < minDays) {
+ // nextJan1InPrevYear = TRUE;
+ // }
+
+ switch(bestField) {
+ case UCAL_WEEK_OF_YEAR:
+ if(woy == 1) {
+ if(jan1InPrevYear == TRUE) {
+ // the first week of January is in the previous year
+ // therefore WOY1 is always solidly within yearWoy
+ return yearWoy;
+ } else {
+ // First WOY is split between two years
+ if( dowLocal < first) { // we are prior to Jan 1
+ return yearWoy-1; // previous year
+ } else {
+ return yearWoy; // in this year
+ }
+ }
+ } else if(woy >= getLeastMaximum(bestField)) {
+ // we _might_ be in the last week..
+ int32_t jd = // Calculate JD of our target day:
+ jan1Start + // JD of Jan 1
+ (7-first) + // days in the first week (Jan 1.. )
+ (woy-1)*7 + // add the weeks of the year
+ dowLocal; // the local dow (0..6) of last week
+ if(jan1InPrevYear==FALSE) {
+ jd -= 7; // woy already includes Jan 1's week.
+ }
+
+ if( (jd+1) >= nextJan1Start ) {
+ // we are in week 52 or 53 etc. - actual year is yearWoy+1
+ return yearWoy+1;
+ } else {
+ // still in yearWoy;
+ return yearWoy;
+ }
+ } else {
+ // we're not possibly in the last week -must be ywoy
+ return yearWoy;
+ }
case UCAL_DATE:
- if((internalGet(UCAL_MONTH)==0) &&
- (woy >= getLeastMaximum(UCAL_WEEK_OF_YEAR))) {
- return yearWoy+1; // month 0, late woy = in the next year
- } else if(woy==1) {
- //if(nextJan1InPrevYear) {
- if(internalGet(UCAL_MONTH)==0) {
- return yearWoy;
- } else {
- return yearWoy-1;
- }
- //}
- }
-
- //(internalGet(UCAL_DATE) <= (7-first)) /* && in minDow */ ) {
- //within 1st week and in this month..
- //return yearWoy+1;
- return yearWoy;
- break;
-
- default: // assume the year is appropriate
- return yearWoy;
- break;
- }
-
-#if defined (U_DEBUG_CAL)
- fprintf(stderr, "%s:%d - forgot a return on field %s\n", __FILE__, __LINE__, fldName(bestField));
-#endif
-
- return yearWoy;
+ if((internalGet(UCAL_MONTH)==0) &&
+ (woy >= getLeastMaximum(UCAL_WEEK_OF_YEAR))) {
+ return yearWoy+1; // month 0, late woy = in the next year
+ } else if(woy==1) {
+ //if(nextJan1InPrevYear) {
+ if(internalGet(UCAL_MONTH)==0) {
+ return yearWoy;
+ } else {
+ return yearWoy-1;
+ }
+ //}
+ }
+
+ //(internalGet(UCAL_DATE) <= (7-first)) /* && in minDow */ ) {
+ //within 1st week and in this month..
+ //return yearWoy+1;
+ return yearWoy;
+
+ default: // assume the year is appropriate
+ return yearWoy;
+ }
}
int32_t Calendar::handleGetMonthLength(int32_t extendedYear, int32_t month) const
int32_t Calendar::handleGetYearLength(int32_t eyear) const {
return handleComputeMonthStart(eyear+1, 0, FALSE) -
- handleComputeMonthStart(eyear, 0, FALSE);
+ handleComputeMonthStart(eyear, 0, FALSE);
}
int32_t
if(U_FAILURE(status)) return 0;
Calendar *cal = clone();
if(!cal) { status = U_MEMORY_ALLOCATION_ERROR; return 0; }
+ cal->setLenient(TRUE);
cal->prepareGetActual(field,FALSE,status);
result = handleGetMonthLength(cal->get(UCAL_EXTENDED_YEAR, status), cal->get(UCAL_MONTH, status));
delete cal;
if(U_FAILURE(status)) return 0;
Calendar *cal = clone();
if(!cal) { status = U_MEMORY_ALLOCATION_ERROR; return 0; }
+ cal->setLenient(TRUE);
cal->prepareGetActual(field,FALSE,status);
result = handleGetYearLength(cal->get(UCAL_EXTENDED_YEAR, status));
delete cal;
}
break;
- case DAY_OF_WEEK:
- case AM_PM:
- case HOUR:
- case HOUR_OF_DAY:
- case MINUTE:
- case SECOND:
- case MILLISECOND:
- case ZONE_OFFSET:
- case DST_OFFSET:
- case DOW_LOCAL:
+ case UCAL_DAY_OF_WEEK:
+ case UCAL_AM_PM:
+ case UCAL_HOUR:
+ case UCAL_HOUR_OF_DAY:
+ case UCAL_MINUTE:
+ case UCAL_SECOND:
+ case UCAL_MILLISECOND:
+ case UCAL_ZONE_OFFSET:
+ case UCAL_DST_OFFSET:
+ case UCAL_DOW_LOCAL:
case UCAL_JULIAN_DAY:
case UCAL_MILLISECONDS_IN_DAY:
// These fields all have fixed minima/maxima
* @internal
*/
void Calendar::prepareGetActual(UCalendarDateFields field, UBool isMinimum, UErrorCode &status)
- {
+{
set(UCAL_MILLISECONDS_IN_DAY, 0);
switch (field) {
case UCAL_YEAR:
- case UCAL_YEAR_WOY:
case UCAL_EXTENDED_YEAR:
set(UCAL_DAY_OF_YEAR, getGreatestMinimum(UCAL_DAY_OF_YEAR));
break;
+ case UCAL_YEAR_WOY:
+ set(UCAL_WEEK_OF_YEAR, getGreatestMinimum(UCAL_WEEK_OF_YEAR));
+ U_FALLTHROUGH;
case UCAL_MONTH:
set(UCAL_DATE, getGreatestMinimum(UCAL_DATE));
break;
dow += 7;
}
}
-#if defined (U_DEBUG_CAL)
+#if defined (U_DEBUG_CAL)
fprintf(stderr, "prepareGetActualHelper(WOM/WOY) - dow=%d\n", dow);
#endif
set(UCAL_DAY_OF_WEEK, dow);
}
break;
default:
- ;
+ break;
}
// Do this last to give it the newest time stamp
int32_t Calendar::getActualHelper(UCalendarDateFields field, int32_t startValue, int32_t endValue, UErrorCode &status) const
{
-#if defined (U_DEBUG_CAL)
- fprintf(stderr, "getActualHelper(%d,%d .. %d, %s)\n", field, startValue, endValue, u_errorName(status));
+#if defined (U_DEBUG_CAL)
+ fprintf(stderr, "getActualHelper(%d,%d .. %d, %s)\n", field, startValue, endValue, u_errorName(status));
#endif
if (startValue == endValue) {
// if we know that the maximum value is always the same, just return it
if(U_FAILURE(status)) return startValue;
Calendar *work = clone();
if(!work) { status = U_MEMORY_ALLOCATION_ERROR; return startValue; }
+
+ // need to resolve time here, otherwise, fields set for actual limit
+ // may cause conflict with fields previously set (but not yet resolved).
+ work->complete(status);
+
work->setLenient(TRUE);
-#if defined (U_DEBUG_CAL)
- fprintf(stderr, "%s:%d - getActualHelper - %s\n", __FILE__, __LINE__, u_errorName(status));
-#endif
- work->prepareGetActual(field, delta < 0, status);
-#if defined (U_DEBUG_CAL)
- fprintf(stderr, "%s:%d - getActualHelper - %s\n", __FILE__, __LINE__, u_errorName(status));
-#endif
+ work->prepareGetActual(field, delta < 0, status);
// now try each value from the start to the end one by one until
// we get a value that normalizes to another value. The last value that
// normalizes to itself is the actual maximum for the current date
+ work->set(field, startValue);
+
+ // prepareGetActual sets the first day of week in the same week with
+ // the first day of a month. Unlike WEEK_OF_YEAR, week number for the
+ // week which contains days from both previous and current month is
+ // not unique. For example, last several days in the previous month
+ // is week 5, and the rest of week is week 1.
int32_t result = startValue;
- do {
-#if defined (U_DEBUG_CAL)
- fprintf(stderr, "%s:%d - getActualHelper - %s\n", __FILE__, __LINE__, u_errorName(status));
-#endif
- work->set(field, startValue);
-#if defined (U_DEBUG_CAL)
- fprintf(stderr, "%s:%d - getActualHelper - %s (set to %d)\n", __FILE__, __LINE__, u_errorName(status), startValue);
-#endif
- if (work->get(field, status) != startValue) {
-#if defined (U_DEBUG_CAL)
- fprintf(stderr, "getActualHelper(fld %d) - got %d (not %d), BREAK - %s\n", field, work->get(field,status), startValue, u_errorName(status));
+ if ((work->get(field, status) != startValue
+ && field != UCAL_WEEK_OF_MONTH && delta > 0 ) || U_FAILURE(status)) {
+#if defined (U_DEBUG_CAL)
+ fprintf(stderr, "getActualHelper(fld %d) - got %d (not %d) - %s\n", field, work->get(field,status), startValue, u_errorName(status));
#endif
- break;
- } else {
- result = startValue;
+ } else {
+ do {
startValue += delta;
-#if defined (U_DEBUG_CAL)
- fprintf(stderr, "getActualHelper(%d) result=%d (start), start += %d to %d\n", field, result, delta, startValue);
+ work->add(field, delta, status);
+ if (work->get(field, status) != startValue || U_FAILURE(status)) {
+#if defined (U_DEBUG_CAL)
+ fprintf(stderr, "getActualHelper(fld %d) - got %d (not %d), BREAK - %s\n", field, work->get(field,status), startValue, u_errorName(status));
#endif
- }
- } while (result != endValue && U_SUCCESS(status));
+ break;
+ }
+ result = startValue;
+ } while (startValue != endValue);
+ }
delete work;
-#if defined (U_DEBUG_CAL)
+#if defined (U_DEBUG_CAL)
fprintf(stderr, "getActualHelper(%d) = %d\n", field, result);
#endif
return result;
// -------------------------------------
void
-Calendar::setWeekCountData(const Locale& desiredLocale, const char *type, UErrorCode& status)
-{
- // Read the week count data from the resource bundle. This should
- // have the form:
- //
- // DateTimeElements:intvector {
- // 1, // first day of week
- // 1 // min days in week
- // }
- // Both have a range of 1..7
-
+Calendar::setWeekData(const Locale& desiredLocale, const char *type, UErrorCode& status)
+{
if (U_FAILURE(status)) return;
fFirstDayOfWeek = UCAL_SUNDAY;
fMinimalDaysInFirstWeek = 1;
+ fWeekendOnset = UCAL_SATURDAY;
+ fWeekendOnsetMillis = 0;
+ fWeekendCease = UCAL_SUNDAY;
+ fWeekendCeaseMillis = 86400000; // 24*60*60*1000
+
+ // Since week and weekend data is territory based instead of language based,
+ // we may need to tweak the locale that we are using to try to get the appropriate
+ // values, using the following logic:
+ // 1). If the locale has a language but no territory, use the territory as defined by
+ // the likely subtags.
+ // 2). If the locale has a script designation then we ignore it,
+ // then remove it ( i.e. "en_Latn_US" becomes "en_US" )
+
+ char minLocaleID[ULOC_FULLNAME_CAPACITY] = { 0 };
+ UErrorCode myStatus = U_ZERO_ERROR;
+
+ uloc_minimizeSubtags(desiredLocale.getName(),minLocaleID,ULOC_FULLNAME_CAPACITY,&myStatus);
+ Locale min = Locale::createFromName(minLocaleID);
+ Locale useLocale;
+ if ( uprv_strlen(desiredLocale.getCountry()) == 0 ||
+ (uprv_strlen(desiredLocale.getScript()) > 0 && uprv_strlen(min.getScript()) == 0) ) {
+ char maxLocaleID[ULOC_FULLNAME_CAPACITY] = { 0 };
+ myStatus = U_ZERO_ERROR;
+ uloc_addLikelySubtags(desiredLocale.getName(),maxLocaleID,ULOC_FULLNAME_CAPACITY,&myStatus);
+ Locale max = Locale::createFromName(maxLocaleID);
+ useLocale = Locale(max.getLanguage(),max.getCountry());
+ } else {
+ useLocale = Locale(desiredLocale);
+ }
- CalendarData calData(desiredLocale, type, status);
- // If the resource data doesn't seem to be present at all, then use last-resort
- // hard-coded data.
- UResourceBundle *dateTimeElements = calData.getByKey(gDateTimeElements, status);
+ /* The code here is somewhat of a hack, since week data and weekend data aren't really tied to
+ a specific calendar, they aren't truly locale data. But this is the only place where valid and
+ actual locale can be set, so we take a shot at it here by loading a representative resource
+ from the calendar data. The code used to use the dateTimeElements resource to get first day
+ of week data, but this was moved to supplemental data under ticket 7755. (JCE) */
+
+ // Get the monthNames resource bundle for the calendar 'type'. Fallback to gregorian if the resource is not
+ // found.
+ LocalUResourceBundlePointer calData(ures_open(NULL, useLocale.getBaseName(), &status));
+ ures_getByKey(calData.getAlias(), gCalendar, calData.getAlias(), &status);
+
+ LocalUResourceBundlePointer monthNames;
+ if (type != NULL && *type != '\0' && uprv_strcmp(type, gGregorian) != 0) {
+ monthNames.adoptInstead(ures_getByKeyWithFallback(calData.getAlias(), type, NULL, &status));
+ ures_getByKeyWithFallback(monthNames.getAlias(), gMonthNames,
+ monthNames.getAlias(), &status);
+ }
- if (U_FAILURE(status))
- {
-#if defined (U_DEBUG_CALDATA)
- fprintf(stderr, " Failure loading dateTimeElements = %s\n", u_errorName(status));
-#endif
+ if (monthNames.isNull() || status == U_MISSING_RESOURCE_ERROR) {
+ status = U_ZERO_ERROR;
+ monthNames.adoptInstead(ures_getByKeyWithFallback(calData.getAlias(), gGregorian,
+ monthNames.orphan(), &status));
+ ures_getByKeyWithFallback(monthNames.getAlias(), gMonthNames,
+ monthNames.getAlias(), &status);
+ }
+
+ if (U_SUCCESS(status)) {
+ U_LOCALE_BASED(locBased,*this);
+ locBased.setLocaleIDs(ures_getLocaleByType(monthNames.getAlias(), ULOC_VALID_LOCALE, &status),
+ ures_getLocaleByType(monthNames.getAlias(), ULOC_ACTUAL_LOCALE, &status));
+ } else {
status = U_USING_FALLBACK_WARNING;
return;
}
- U_LOCALE_BASED(locBased, *this);
- locBased.setLocaleIDs(ures_getLocaleByType(dateTimeElements, ULOC_VALID_LOCALE, &status),
- ures_getLocaleByType(dateTimeElements, ULOC_ACTUAL_LOCALE, &status));
- if (U_SUCCESS(status)) {
-#if defined (U_DEBUG_CAL)
- fprintf(stderr, " Valid=%s, Actual=%s\n", validLocale, actualLocale);
-#endif
- int32_t arrLen;
- const int32_t *dateTimeElementsArr = ures_getIntVector(dateTimeElements, &arrLen, &status);
+ char region[ULOC_COUNTRY_CAPACITY];
+ (void)ulocimp_getRegionForSupplementalData(desiredLocale.getName(), TRUE, region, sizeof(region), &status);
- if(U_SUCCESS(status) && arrLen == 2
- && 1 <= dateTimeElementsArr[0] && dateTimeElementsArr[0] <= 7
- && 1 <= dateTimeElementsArr[1] && dateTimeElementsArr[1] <= 7)
- {
- fFirstDayOfWeek = (UCalendarDaysOfWeek)dateTimeElementsArr[0];
- fMinimalDaysInFirstWeek = (uint8_t)dateTimeElementsArr[1];
- }
- else {
+ // Read week data values from supplementalData week data
+ UResourceBundle *rb = ures_openDirect(NULL, "supplementalData", &status);
+ ures_getByKey(rb, "weekData", rb, &status);
+ UResourceBundle *weekData = ures_getByKey(rb, region, NULL, &status);
+ if (status == U_MISSING_RESOURCE_ERROR && rb != NULL) {
+ status = U_ZERO_ERROR;
+ weekData = ures_getByKey(rb, "001", NULL, &status);
+ }
+
+ if (U_FAILURE(status)) {
+ status = U_USING_FALLBACK_WARNING;
+ } else {
+ int32_t arrLen;
+ const int32_t *weekDataArr = ures_getIntVector(weekData,&arrLen,&status);
+ if( U_SUCCESS(status) && arrLen == 6
+ && 1 <= weekDataArr[0] && weekDataArr[0] <= 7
+ && 1 <= weekDataArr[1] && weekDataArr[1] <= 7
+ && 1 <= weekDataArr[2] && weekDataArr[2] <= 7
+ && 1 <= weekDataArr[4] && weekDataArr[4] <= 7) {
+ fFirstDayOfWeek = (UCalendarDaysOfWeek)weekDataArr[0];
+ fMinimalDaysInFirstWeek = (uint8_t)weekDataArr[1];
+ fWeekendOnset = (UCalendarDaysOfWeek)weekDataArr[2];
+ fWeekendOnsetMillis = weekDataArr[3];
+ fWeekendCease = (UCalendarDaysOfWeek)weekDataArr[4];
+ fWeekendCeaseMillis = weekDataArr[5];
+ } else {
status = U_INVALID_FORMAT_ERROR;
}
}
-
- // do NOT close dateTimeElements
+ ures_close(weekData);
+ ures_close(rb);
}
/**
- * Recompute the time and update the status fields isTimeSet
- * and areFieldsSet. Callers should check isTimeSet and only
- * call this method if isTimeSet is false.
- */
-void
-Calendar::updateTime(UErrorCode& status)
+* Recompute the time and update the status fields isTimeSet
+* and areFieldsSet. Callers should check isTimeSet and only
+* call this method if isTimeSet is false.
+*/
+void
+Calendar::updateTime(UErrorCode& status)
{
computeTime(status);
if(U_FAILURE(status))
return;
-
+
// If we are lenient, we need to recompute the fields to normalize
// the values. Also, if we haven't set all the fields yet (i.e.,
// in a newly-created object), we need to fill in the fields. [LIU]
- if (isLenient() || ! fAreAllFieldsSet)
+ if (isLenient() || ! fAreAllFieldsSet)
fAreFieldsSet = FALSE;
-
+
fIsTimeSet = TRUE;
fAreFieldsVirtuallySet = FALSE;
}
-Locale
+Locale
Calendar::getLocale(ULocDataLocaleType type, UErrorCode& status) const {
U_LOCALE_BASED(locBased, *this);
return locBased.getLocale(type, status);
return locBased.getLocaleID(type, status);
}
+void
+Calendar::recalculateStamp() {
+ int32_t index;
+ int32_t currentValue;
+ int32_t j, i;
+
+ fNextStamp = 1;
+
+ for (j = 0; j < UCAL_FIELD_COUNT; j++) {
+ currentValue = STAMP_MAX;
+ index = -1;
+ for (i = 0; i < UCAL_FIELD_COUNT; i++) {
+ if (fStamp[i] > fNextStamp && fStamp[i] < currentValue) {
+ currentValue = fStamp[i];
+ index = i;
+ }
+ }
+
+ if (index >= 0) {
+ fStamp[index] = ++fNextStamp;
+ } else {
+ break;
+ }
+ }
+ fNextStamp++;
+}
+
+// Deprecated function. This doesn't need to be inline.
+void
+Calendar::internalSet(EDateFields field, int32_t value)
+{
+ internalSet((UCalendarDateFields) field, value);
+}
+
+BasicTimeZone*
+Calendar::getBasicTimeZone(void) const {
+ if (dynamic_cast<const OlsonTimeZone *>(fZone) != NULL
+ || dynamic_cast<const SimpleTimeZone *>(fZone) != NULL
+ || dynamic_cast<const RuleBasedTimeZone *>(fZone) != NULL
+ || dynamic_cast<const VTimeZone *>(fZone) != NULL) {
+ return (BasicTimeZone*)fZone;
+ }
+ return NULL;
+}
+
U_NAMESPACE_END
#endif /* #if !UCONFIG_NO_FORMATTING */
projects / apple / icu.git / blobdiff