Index: icu46/source/i18n/timezone.cpp |
=================================================================== |
--- icu46/source/i18n/timezone.cpp (revision 0) |
+++ icu46/source/i18n/timezone.cpp (revision 0) |
@@ -0,0 +1,1387 @@ |
+/* |
+******************************************************************************* |
+* Copyright (C) 1997-2010, International Business Machines Corporation and * |
+* others. All Rights Reserved. * |
+******************************************************************************* |
+* |
+* File TIMEZONE.CPP |
+* |
+* Modification History: |
+* |
+* Date Name Description |
+* 12/05/96 clhuang Creation. |
+* 04/21/97 aliu General clean-up and bug fixing. |
+* 05/08/97 aliu Fixed Hashtable code per code review. |
+* 07/09/97 helena Changed createInstance to createDefault. |
+* 07/29/97 aliu Updated with all-new list of 96 UNIX-derived |
+* TimeZones. Changed mechanism to load from static |
+* array rather than resource bundle. |
+* 07/07/1998 srl Bugfixes from the Java side: UTC GMT CAT NST |
+* Added getDisplayName API |
+* going to add custom parsing. |
+* |
+* ISSUES: |
+* - should getDisplayName cache something? |
+* - should custom time zones be cached? [probably] |
+* 08/10/98 stephen Brought getDisplayName() API in-line w/ conventions |
+* 08/19/98 stephen Changed createTimeZone() to never return 0 |
+* 09/02/98 stephen Added getOffset(monthLen) and hasSameRules() |
+* 09/15/98 stephen Added getStaticClassID() |
+* 02/22/99 stephen Removed character literals for EBCDIC safety |
+* 05/04/99 stephen Changed initDefault() for Mutex issues |
+* 07/12/99 helena HPUX 11 CC Port. |
+* 12/03/99 aliu Moved data out of static table into icudata.dll. |
+* Substantial rewrite of zone lookup, default zone, and |
+* available IDs code. Misc. cleanup. |
+*********************************************************************************/ |
+ |
+#include <typeinfo> // for 'typeid' to work |
+ |
+#include "unicode/utypes.h" |
+#include "unicode/ustring.h" |
+ |
+#ifdef U_DEBUG_TZ |
+# include <stdio.h> |
+# include "uresimp.h" // for debugging |
+ |
+static void debug_tz_loc(const char *f, int32_t l) |
+{ |
+ fprintf(stderr, "%s:%d: ", f, l); |
+} |
+ |
+static void debug_tz_msg(const char *pat, ...) |
+{ |
+ va_list ap; |
+ va_start(ap, pat); |
+ vfprintf(stderr, pat, ap); |
+ fflush(stderr); |
+} |
+static char gStrBuf[256]; |
+#define U_DEBUG_TZ_STR(x) u_austrncpy(gStrBuf,x,sizeof(gStrBuf)-1) |
+// must use double parens, i.e.: U_DEBUG_TZ_MSG(("four is: %d",4)); |
+#define U_DEBUG_TZ_MSG(x) {debug_tz_loc(__FILE__,__LINE__);debug_tz_msg x;} |
+#else |
+#define U_DEBUG_TZ_MSG(x) |
+#endif |
+ |
+#if !UCONFIG_NO_FORMATTING |
+ |
+#include "unicode/simpletz.h" |
+#include "unicode/smpdtfmt.h" |
+#include "unicode/calendar.h" |
+#include "unicode/gregocal.h" |
+#include "unicode/ures.h" |
+#include "gregoimp.h" |
+#include "uresimp.h" // struct UResourceBundle |
+#include "olsontz.h" |
+#include "mutex.h" |
+#include "unicode/udata.h" |
+#include "ucln_in.h" |
+#include "cstring.h" |
+#include "cmemory.h" |
+#include "unicode/strenum.h" |
+#include "uassert.h" |
+#include "zonemeta.h" |
+ |
+#define kZONEINFO "zoneinfo64" |
+#define kREGIONS "Regions" |
+#define kZONES "Zones" |
+#define kRULES "Rules" |
+#define kNAMES "Names" |
+#define kTZVERSION "TZVersion" |
+#define kLINKS "links" |
+#define kMAX_CUSTOM_HOUR 23 |
+#define kMAX_CUSTOM_MIN 59 |
+#define kMAX_CUSTOM_SEC 59 |
+#define MINUS 0x002D |
+#define PLUS 0x002B |
+#define ZERO_DIGIT 0x0030 |
+#define COLON 0x003A |
+ |
+// Static data and constants |
+ |
+static const UChar WORLD[] = {0x30, 0x30, 0x31, 0x00}; /* "001" */ |
+ |
+static const UChar GMT_ID[] = {0x47, 0x4D, 0x54, 0x00}; /* "GMT" */ |
+static const UChar Z_STR[] = {0x7A, 0x00}; /* "z" */ |
+static const UChar ZZZZ_STR[] = {0x7A, 0x7A, 0x7A, 0x7A, 0x00}; /* "zzzz" */ |
+static const UChar Z_UC_STR[] = {0x5A, 0x00}; /* "Z" */ |
+static const UChar ZZZZ_UC_STR[] = {0x5A, 0x5A, 0x5A, 0x5A, 0x00}; /* "ZZZZ" */ |
+static const UChar V_STR[] = {0x76, 0x00}; /* "v" */ |
+static const UChar VVVV_STR[] = {0x76, 0x76, 0x76, 0x76, 0x00}; /* "vvvv" */ |
+static const UChar V_UC_STR[] = {0x56, 0x00}; /* "V" */ |
+static const UChar VVVV_UC_STR[] = {0x56, 0x56, 0x56, 0x56, 0x00}; /* "VVVV" */ |
+static const int32_t GMT_ID_LENGTH = 3; |
+ |
+static UMTX LOCK; |
+static UMTX TZSET_LOCK; |
+static U_NAMESPACE_QUALIFIER TimeZone* DEFAULT_ZONE = NULL; |
+static U_NAMESPACE_QUALIFIER TimeZone* _GMT = NULL; // cf. TimeZone::GMT |
+ |
+static char TZDATA_VERSION[16]; |
+static UBool TZDataVersionInitialized = FALSE; |
+ |
+U_CDECL_BEGIN |
+static UBool U_CALLCONV timeZone_cleanup(void) |
+{ |
+ delete DEFAULT_ZONE; |
+ DEFAULT_ZONE = NULL; |
+ |
+ delete _GMT; |
+ _GMT = NULL; |
+ |
+ uprv_memset(TZDATA_VERSION, 0, sizeof(TZDATA_VERSION)); |
+ TZDataVersionInitialized = FALSE; |
+ |
+ if (LOCK) { |
+ umtx_destroy(&LOCK); |
+ LOCK = NULL; |
+ } |
+ if (TZSET_LOCK) { |
+ umtx_destroy(&TZSET_LOCK); |
+ TZSET_LOCK = NULL; |
+ } |
+ |
+ return TRUE; |
+} |
+U_CDECL_END |
+ |
+U_NAMESPACE_BEGIN |
+ |
+/** |
+ * The Olson data is stored the "zoneinfo" resource bundle. |
+ * Sub-resources are organized into three ranges of data: Zones, final |
+ * rules, and country tables. There is also a meta-data resource |
+ * which has 3 integers: The number of zones, rules, and countries, |
+ * respectively. The country count includes the non-country 'Default'. |
+ */ |
+static int32_t OLSON_ZONE_COUNT = 0; // count of zones |
+ |
+/** |
+ * Given a pointer to an open "zoneinfo" resource, load up the Olson |
+ * meta-data. Return TRUE if successful. |
+ */ |
+static UBool getOlsonMeta(const UResourceBundle* top) { |
+ if (OLSON_ZONE_COUNT == 0) { |
+ UErrorCode ec = U_ZERO_ERROR; |
+ UResourceBundle res; |
+ ures_initStackObject(&res); |
+ ures_getByKey(top, kZONES, &res, &ec); |
+ if(U_SUCCESS(ec)) { |
+ OLSON_ZONE_COUNT = ures_getSize(&res); |
+ U_DEBUG_TZ_MSG(("OZC%d\n",OLSON_ZONE_COUNT)); |
+ } |
+ ures_close(&res); |
+ } |
+ return (OLSON_ZONE_COUNT > 0); |
+} |
+ |
+/** |
+ * Load up the Olson meta-data. Return TRUE if successful. |
+ */ |
+static UBool getOlsonMeta() { |
+ if (OLSON_ZONE_COUNT == 0) { |
+ UErrorCode ec = U_ZERO_ERROR; |
+ UResourceBundle *top = ures_openDirect(0, kZONEINFO, &ec); |
+ if (U_SUCCESS(ec)) { |
+ getOlsonMeta(top); |
+ } |
+ ures_close(top); |
+ } |
+ return (OLSON_ZONE_COUNT > 0); |
+} |
+ |
+static int32_t findInStringArray(UResourceBundle* array, const UnicodeString& id, UErrorCode &status) |
+{ |
+ UnicodeString copy; |
+ const UChar *u; |
+ int32_t len; |
+ |
+ int32_t start = 0; |
+ int32_t limit = ures_getSize(array); |
+ int32_t mid; |
+ int32_t lastMid = INT32_MAX; |
+ if(U_FAILURE(status) || (limit < 1)) { |
+ return -1; |
+ } |
+ U_DEBUG_TZ_MSG(("fisa: Looking for %s, between %d and %d\n", U_DEBUG_TZ_STR(UnicodeString(id).getTerminatedBuffer()), start, limit)); |
+ |
+ for (;;) { |
+ mid = (int32_t)((start + limit) / 2); |
+ if (lastMid == mid) { /* Have we moved? */ |
+ break; /* We haven't moved, and it wasn't found. */ |
+ } |
+ lastMid = mid; |
+ u = ures_getStringByIndex(array, mid, &len, &status); |
+ if (U_FAILURE(status)) { |
+ break; |
+ } |
+ U_DEBUG_TZ_MSG(("tz: compare to %s, %d .. [%d] .. %d\n", U_DEBUG_TZ_STR(u), start, mid, limit)); |
+ copy.setTo(TRUE, u, len); |
+ int r = id.compare(copy); |
+ if(r==0) { |
+ U_DEBUG_TZ_MSG(("fisa: found at %d\n", mid)); |
+ return mid; |
+ } else if(r<0) { |
+ limit = mid; |
+ } else { |
+ start = mid; |
+ } |
+ } |
+ U_DEBUG_TZ_MSG(("fisa: not found\n")); |
+ return -1; |
+} |
+ |
+/** |
+ * Fetch a specific zone by name. Replaces the getByKey call. |
+ * @param top Top timezone resource |
+ * @param id Time zone ID |
+ * @param oldbundle Bundle for reuse (or NULL). see 'ures_open()' |
+ * @return the zone's bundle if found, or undefined if error. Reuses oldbundle. |
+ */ |
+static UResourceBundle* getZoneByName(const UResourceBundle* top, const UnicodeString& id, UResourceBundle *oldbundle, UErrorCode& status) { |
+ // load the Rules object |
+ UResourceBundle *tmp = ures_getByKey(top, kNAMES, NULL, &status); |
+ |
+ // search for the string |
+ int32_t idx = findInStringArray(tmp, id, status); |
+ |
+ if((idx == -1) && U_SUCCESS(status)) { |
+ // not found |
+ status = U_MISSING_RESOURCE_ERROR; |
+ //ures_close(oldbundle); |
+ //oldbundle = NULL; |
+ } else { |
+ U_DEBUG_TZ_MSG(("gzbn: oldbundle= size %d, type %d, %s\n", ures_getSize(tmp), ures_getType(tmp), u_errorName(status))); |
+ tmp = ures_getByKey(top, kZONES, tmp, &status); // get Zones object from top |
+ U_DEBUG_TZ_MSG(("gzbn: loaded ZONES, size %d, type %d, path %s %s\n", ures_getSize(tmp), ures_getType(tmp), ures_getPath(tmp), u_errorName(status))); |
+ oldbundle = ures_getByIndex(tmp, idx, oldbundle, &status); // get nth Zone object |
+ U_DEBUG_TZ_MSG(("gzbn: loaded z#%d, size %d, type %d, path %s, %s\n", idx, ures_getSize(oldbundle), ures_getType(oldbundle), ures_getPath(oldbundle), u_errorName(status))); |
+ } |
+ ures_close(tmp); |
+ if(U_FAILURE(status)) { |
+ //ures_close(oldbundle); |
+ return NULL; |
+ } else { |
+ return oldbundle; |
+ } |
+} |
+ |
+ |
+UResourceBundle* TimeZone::loadRule(const UResourceBundle* top, const UnicodeString& ruleid, UResourceBundle* oldbundle, UErrorCode& status) { |
+ char key[64]; |
+ ruleid.extract(0, sizeof(key)-1, key, (int32_t)sizeof(key)-1, US_INV); |
+ U_DEBUG_TZ_MSG(("loadRule(%s)\n", key)); |
+ UResourceBundle *r = ures_getByKey(top, kRULES, oldbundle, &status); |
+ U_DEBUG_TZ_MSG(("loadRule(%s) -> kRULES [%s]\n", key, u_errorName(status))); |
+ r = ures_getByKey(r, key, r, &status); |
+ U_DEBUG_TZ_MSG(("loadRule(%s) -> item [%s]\n", key, u_errorName(status))); |
+ return r; |
+} |
+ |
+/** |
+ * Given an ID, open the appropriate resource for the given time zone. |
+ * Dereference aliases if necessary. |
+ * @param id zone id |
+ * @param res resource, which must be ready for use (initialized but not open) |
+ * @param ec input-output error code |
+ * @return top-level resource bundle |
+ */ |
+static UResourceBundle* openOlsonResource(const UnicodeString& id, |
+ UResourceBundle& res, |
+ UErrorCode& ec) |
+{ |
+#if U_DEBUG_TZ |
+ char buf[128]; |
+ id.extract(0, sizeof(buf)-1, buf, sizeof(buf), ""); |
+#endif |
+ UResourceBundle *top = ures_openDirect(0, kZONEINFO, &ec); |
+ U_DEBUG_TZ_MSG(("pre: res sz=%d\n", ures_getSize(&res))); |
+ /* &res = */ getZoneByName(top, id, &res, ec); |
+ // Dereference if this is an alias. Docs say result should be 1 |
+ // but it is 0 in 2.8 (?). |
+ U_DEBUG_TZ_MSG(("Loading zone '%s' (%s, size %d) - %s\n", buf, ures_getKey((UResourceBundle*)&res), ures_getSize(&res), u_errorName(ec))); |
+ if (ures_getType(&res) == URES_INT && getOlsonMeta(top)) { |
+ int32_t deref = ures_getInt(&res, &ec) + 0; |
+ U_DEBUG_TZ_MSG(("getInt: %s - type is %d\n", u_errorName(ec), ures_getType(&res))); |
+ UResourceBundle *ares = ures_getByKey(top, kZONES, NULL, &ec); // dereference Zones section |
+ ures_getByIndex(ares, deref, &res, &ec); |
+ ures_close(ares); |
+ U_DEBUG_TZ_MSG(("alias to #%d (%s) - %s\n", deref, "??", u_errorName(ec))); |
+ } else { |
+ U_DEBUG_TZ_MSG(("not an alias - size %d\n", ures_getSize(&res))); |
+ } |
+ U_DEBUG_TZ_MSG(("%s - final status is %s\n", buf, u_errorName(ec))); |
+ return top; |
+} |
+ |
+// ------------------------------------- |
+ |
+const TimeZone* U_EXPORT2 |
+TimeZone::getGMT(void) |
+{ |
+ UBool needsInit; |
+ UMTX_CHECK(&LOCK, (_GMT == NULL), needsInit); /* This is here to prevent race conditions. */ |
+ |
+ // Initialize _GMT independently of other static data; it should |
+ // be valid even if we can't load the time zone UDataMemory. |
+ if (needsInit) { |
+ SimpleTimeZone *tmpGMT = new SimpleTimeZone(0, UnicodeString(TRUE, GMT_ID, GMT_ID_LENGTH)); |
+ umtx_lock(&LOCK); |
+ if (_GMT == 0) { |
+ _GMT = tmpGMT; |
+ tmpGMT = NULL; |
+ } |
+ umtx_unlock(&LOCK); |
+ ucln_i18n_registerCleanup(UCLN_I18N_TIMEZONE, timeZone_cleanup); |
+ delete tmpGMT; |
+ } |
+ return _GMT; |
+} |
+ |
+// ***************************************************************************** |
+// class TimeZone |
+// ***************************************************************************** |
+ |
+UOBJECT_DEFINE_ABSTRACT_RTTI_IMPLEMENTATION(TimeZone) |
+ |
+TimeZone::TimeZone() |
+ : UObject(), fID() |
+{ |
+} |
+ |
+// ------------------------------------- |
+ |
+TimeZone::TimeZone(const UnicodeString &id) |
+ : UObject(), fID(id) |
+{ |
+} |
+ |
+// ------------------------------------- |
+ |
+TimeZone::~TimeZone() |
+{ |
+} |
+ |
+// ------------------------------------- |
+ |
+TimeZone::TimeZone(const TimeZone &source) |
+ : UObject(source), fID(source.fID) |
+{ |
+} |
+ |
+// ------------------------------------- |
+ |
+TimeZone & |
+TimeZone::operator=(const TimeZone &right) |
+{ |
+ if (this != &right) fID = right.fID; |
+ return *this; |
+} |
+ |
+// ------------------------------------- |
+ |
+UBool |
+TimeZone::operator==(const TimeZone& that) const |
+{ |
+ return typeid(*this) == typeid(that) && |
+ fID == that.fID; |
+} |
+ |
+// ------------------------------------- |
+ |
+TimeZone* U_EXPORT2 |
+TimeZone::createTimeZone(const UnicodeString& ID) |
+{ |
+ /* We first try to lookup the zone ID in our system list. If this |
+ * fails, we try to parse it as a custom string GMT[+-]hh:mm. If |
+ * all else fails, we return GMT, which is probably not what the |
+ * user wants, but at least is a functioning TimeZone object. |
+ * |
+ * We cannot return NULL, because that would break compatibility |
+ * with the JDK. |
+ */ |
+ TimeZone* result = createSystemTimeZone(ID); |
+ |
+ if (result == 0) { |
+ U_DEBUG_TZ_MSG(("failed to load system time zone with id - falling to custom")); |
+ result = createCustomTimeZone(ID); |
+ } |
+ if (result == 0) { |
+ U_DEBUG_TZ_MSG(("failed to load time zone with id - falling to GMT")); |
+ const TimeZone* temptz = getGMT(); |
+ if (temptz == NULL) { |
+ result = NULL; |
+ } else { |
+ result = temptz->clone(); |
+ } |
+ } |
+ return result; |
+} |
+ |
+/** |
+ * Lookup the given name in our system zone table. If found, |
+ * instantiate a new zone of that name and return it. If not |
+ * found, return 0. |
+ */ |
+TimeZone* |
+TimeZone::createSystemTimeZone(const UnicodeString& id) { |
+ TimeZone* z = 0; |
+ UErrorCode ec = U_ZERO_ERROR; |
+ UResourceBundle res; |
+ ures_initStackObject(&res); |
+ U_DEBUG_TZ_MSG(("pre-err=%s\n", u_errorName(ec))); |
+ UResourceBundle *top = openOlsonResource(id, res, ec); |
+ U_DEBUG_TZ_MSG(("post-err=%s\n", u_errorName(ec))); |
+ if (U_SUCCESS(ec)) { |
+ z = new OlsonTimeZone(top, &res, ec); |
+ if (z) { |
+ z->setID(id); |
+ } else { |
+ U_DEBUG_TZ_MSG(("cstz: olson time zone failed to initialize - err %s\n", u_errorName(ec))); |
+ } |
+ } |
+ ures_close(&res); |
+ ures_close(top); |
+ if (U_FAILURE(ec)) { |
+ U_DEBUG_TZ_MSG(("cstz: failed to create, err %s\n", u_errorName(ec))); |
+ delete z; |
+ z = 0; |
+ } |
+ return z; |
+} |
+ |
+// ------------------------------------- |
+ |
+/** |
+ * Initialize DEFAULT_ZONE from the system default time zone. The |
+ * caller should confirm that DEFAULT_ZONE is NULL before calling. |
+ * Upon return, DEFAULT_ZONE will not be NULL, unless operator new() |
+ * returns NULL. |
+ * |
+ * Must be called OUTSIDE mutex. |
+ */ |
+void |
+TimeZone::initDefault() |
+{ |
+ // We access system timezone data through TPlatformUtilities, |
+ // including tzset(), timezone, and tzname[]. |
+ int32_t rawOffset = 0; |
+ const char *hostID; |
+ |
+ // First, try to create a system timezone, based |
+ // on the string ID in tzname[0]. |
+ { |
+ // NOTE: Local mutex here. TimeZone mutex below |
+ // mutexed to avoid threading issues in the platform functions. |
+ // Some of the locale/timezone OS functions may not be thread safe, |
+ // so the intent is that any setting from anywhere within ICU |
+ // happens while the ICU mutex is held. |
+ // The operating system might actually use ICU to implement timezones. |
+ // So we may have ICU calling ICU here, like on AIX. |
+ // In order to prevent a double lock of a non-reentrant mutex in a |
+ // different part of ICU, we use TZSET_LOCK to allow only one instance |
+ // of ICU to query these thread unsafe OS functions at any given time. |
+ Mutex lock(&TZSET_LOCK); |
+ |
+ ucln_i18n_registerCleanup(UCLN_I18N_TIMEZONE, timeZone_cleanup); |
+ uprv_tzset(); // Initialize tz... system data |
+ |
+ // Get the timezone ID from the host. This function should do |
+ // any required host-specific remapping; e.g., on Windows this |
+ // function maps the Date and Time control panel setting to an |
+ // ICU timezone ID. |
+ hostID = uprv_tzname(0); |
+ |
+ // Invert sign because UNIX semantics are backwards |
+ rawOffset = uprv_timezone() * -U_MILLIS_PER_SECOND; |
+ } |
+ |
+ UBool initialized; |
+ UMTX_CHECK(&LOCK, (DEFAULT_ZONE != NULL), initialized); |
+ if (initialized) { |
+ /* Hrmph? Either a race condition happened, or tzset initialized ICU. */ |
+ return; |
+ } |
+ |
+ TimeZone* default_zone = NULL; |
+ |
+ /* Make sure that the string is NULL terminated to prevent BoundsChecker/Purify warnings. */ |
+ UnicodeString hostStrID(hostID, -1, US_INV); |
+ hostStrID.append((UChar)0); |
+ hostStrID.truncate(hostStrID.length()-1); |
+ default_zone = createSystemTimeZone(hostStrID); |
+ |
+#ifdef U_WINDOWS |
+ // hostID points to a heap-allocated location on Windows. |
+ uprv_free(const_cast<char *>(hostID)); |
+#endif |
+ |
+ int32_t hostIDLen = hostStrID.length(); |
+ if (default_zone != NULL && rawOffset != default_zone->getRawOffset() |
+ && (3 <= hostIDLen && hostIDLen <= 4)) |
+ { |
+ // Uh oh. This probably wasn't a good id. |
+ // It was probably an ambiguous abbreviation |
+ delete default_zone; |
+ default_zone = NULL; |
+ } |
+ |
+ // Construct a fixed standard zone with the host's ID |
+ // and raw offset. |
+ if (default_zone == NULL) { |
+ default_zone = new SimpleTimeZone(rawOffset, hostStrID); |
+ } |
+ |
+ // If we _still_ don't have a time zone, use GMT. |
+ if (default_zone == NULL) { |
+ const TimeZone* temptz = getGMT(); |
+ // If we can't use GMT, get out. |
+ if (temptz == NULL) { |
+ return; |
+ } |
+ default_zone = temptz->clone(); |
+ } |
+ |
+ // If DEFAULT_ZONE is still NULL, set it up. |
+ umtx_lock(&LOCK); |
+ if (DEFAULT_ZONE == NULL) { |
+ DEFAULT_ZONE = default_zone; |
+ default_zone = NULL; |
+ ucln_i18n_registerCleanup(UCLN_I18N_TIMEZONE, timeZone_cleanup); |
+ } |
+ umtx_unlock(&LOCK); |
+ |
+ delete default_zone; |
+} |
+ |
+// ------------------------------------- |
+ |
+TimeZone* U_EXPORT2 |
+TimeZone::createDefault() |
+{ |
+ /* This is here to prevent race conditions. */ |
+ UBool needsInit; |
+ UMTX_CHECK(&LOCK, (DEFAULT_ZONE == NULL), needsInit); |
+ if (needsInit) { |
+ initDefault(); |
+ } |
+ |
+ Mutex lock(&LOCK); // In case adoptDefault is called |
+ return (DEFAULT_ZONE != NULL) ? DEFAULT_ZONE->clone() : NULL; |
+} |
+ |
+// ------------------------------------- |
+ |
+void U_EXPORT2 |
+TimeZone::adoptDefault(TimeZone* zone) |
+{ |
+ if (zone != NULL) |
+ { |
+ TimeZone* old = NULL; |
+ |
+ umtx_lock(&LOCK); |
+ old = DEFAULT_ZONE; |
+ DEFAULT_ZONE = zone; |
+ umtx_unlock(&LOCK); |
+ |
+ delete old; |
+ ucln_i18n_registerCleanup(UCLN_I18N_TIMEZONE, timeZone_cleanup); |
+ } |
+} |
+// ------------------------------------- |
+ |
+void U_EXPORT2 |
+TimeZone::setDefault(const TimeZone& zone) |
+{ |
+ adoptDefault(zone.clone()); |
+} |
+ |
+//---------------------------------------------------------------------- |
+ |
+/** |
+ * This is the default implementation for subclasses that do not |
+ * override this method. This implementation calls through to the |
+ * 8-argument getOffset() method after suitable computations, and |
+ * correctly adjusts GMT millis to local millis when necessary. |
+ */ |
+void TimeZone::getOffset(UDate date, UBool local, int32_t& rawOffset, |
+ int32_t& dstOffset, UErrorCode& ec) const { |
+ if (U_FAILURE(ec)) { |
+ return; |
+ } |
+ |
+ rawOffset = getRawOffset(); |
+ if (!local) { |
+ date += rawOffset; // now in local standard millis |
+ } |
+ |
+ // When local == TRUE, date might not be in local standard |
+ // millis. getOffset taking 7 parameters used here assume |
+ // the given time in day is local standard time. |
+ // At STD->DST transition, there is a range of time which |
+ // does not exist. When 'date' is in this time range |
+ // (and local == TRUE), this method interprets the specified |
+ // local time as DST. At DST->STD transition, there is a |
+ // range of time which occurs twice. In this case, this |
+ // method interprets the specified local time as STD. |
+ // To support the behavior above, we need to call getOffset |
+ // (with 7 args) twice when local == true and DST is |
+ // detected in the initial call. |
+ for (int32_t pass=0; ; ++pass) { |
+ int32_t year, month, dom, dow; |
+ double day = uprv_floor(date / U_MILLIS_PER_DAY); |
+ int32_t millis = (int32_t) (date - day * U_MILLIS_PER_DAY); |
+ |
+ Grego::dayToFields(day, year, month, dom, dow); |
+ |
+ dstOffset = getOffset(GregorianCalendar::AD, year, month, dom, |
+ (uint8_t) dow, millis, |
+ Grego::monthLength(year, month), |
+ ec) - rawOffset; |
+ |
+ // Recompute if local==TRUE, dstOffset!=0. |
+ if (pass!=0 || !local || dstOffset == 0) { |
+ break; |
+ } |
+ // adjust to local standard millis |
+ date -= dstOffset; |
+ } |
+} |
+ |
+// ------------------------------------- |
+ |
+// New available IDs API as of ICU 2.4. Uses StringEnumeration API. |
+ |
+class TZEnumeration : public StringEnumeration { |
+private: |
+ |
+ // Map into to zones. Our results are zone[map[i]] for |
+ // i=0..len-1, where zone[i] is the i-th Olson zone. If map==NULL |
+ // then our results are zone[i] for i=0..len-1. Len will be zero |
+ // iff the zone data could not be loaded. |
+ int32_t* map; |
+ int32_t len; |
+ int32_t pos; |
+ |
+ UBool getID(int32_t i) { |
+ UErrorCode ec = U_ZERO_ERROR; |
+ int32_t idLen = 0; |
+ const UChar* id = NULL; |
+ UResourceBundle *top = ures_openDirect(0, kZONEINFO, &ec); |
+ top = ures_getByKey(top, kNAMES, top, &ec); // dereference Zones section |
+ id = ures_getStringByIndex(top, i, &idLen, &ec); |
+ if(U_FAILURE(ec)) { |
+ unistr.truncate(0); |
+ } |
+ else { |
+ unistr.fastCopyFrom(UnicodeString(TRUE, id, idLen)); |
+ } |
+ ures_close(top); |
+ return U_SUCCESS(ec); |
+ } |
+ |
+public: |
+ TZEnumeration() : map(NULL), len(0), pos(0) { |
+ if (getOlsonMeta()) { |
+ len = OLSON_ZONE_COUNT; |
+ } |
+ } |
+ |
+ TZEnumeration(int32_t rawOffset) : map(NULL), len(0), pos(0) { |
+ if (!getOlsonMeta()) { |
+ return; |
+ } |
+ |
+ // Allocate more space than we'll need. The end of the array will |
+ // be blank. |
+ map = (int32_t*)uprv_malloc(OLSON_ZONE_COUNT * sizeof(int32_t)); |
+ if (map == 0) { |
+ return; |
+ } |
+ |
+ uprv_memset(map, 0, sizeof(int32_t) * OLSON_ZONE_COUNT); |
+ |
+ UnicodeString s; |
+ for (int32_t i=0; i<OLSON_ZONE_COUNT; ++i) { |
+ if (getID(i)) { |
+ // This is VERY inefficient. |
+ TimeZone* z = TimeZone::createTimeZone(unistr); |
+ // Make sure we get back the ID we wanted (if the ID is |
+ // invalid we get back GMT). |
+ if (z != 0 && z->getID(s) == unistr && |
+ z->getRawOffset() == rawOffset) { |
+ map[len++] = i; |
+ } |
+ delete z; |
+ } |
+ } |
+ } |
+ |
+ TZEnumeration(const char* country) : map(NULL), len(0), pos(0) { |
+ if (!getOlsonMeta()) { |
+ return; |
+ } |
+ |
+ UErrorCode ec = U_ZERO_ERROR; |
+ UResourceBundle *res = ures_openDirect(0, kZONEINFO, &ec); |
+ ures_getByKey(res, kREGIONS, res, &ec); |
+ if (U_SUCCESS(ec) && ures_getType(res) == URES_ARRAY) { |
+ UChar uCountry[] = {0, 0, 0, 0}; |
+ if (country) { |
+ u_charsToUChars(country, uCountry, 2); |
+ } else { |
+ u_strcpy(uCountry, WORLD); |
+ } |
+ |
+ // count matches |
+ int32_t count = 0; |
+ int32_t i; |
+ const UChar *region; |
+ for (i = 0; i < ures_getSize(res); i++) { |
+ region = ures_getStringByIndex(res, i, NULL, &ec); |
+ if (U_FAILURE(ec)) { |
+ break; |
+ } |
+ if (u_strcmp(uCountry, region) == 0) { |
+ count++; |
+ } |
+ } |
+ |
+ if (count > 0) { |
+ map = (int32_t*)uprv_malloc(sizeof(int32_t) * count); |
+ if (map != NULL) { |
+ int32_t idx = 0; |
+ for (i = 0; i < ures_getSize(res); i++) { |
+ region = ures_getStringByIndex(res, i, NULL, &ec); |
+ if (U_FAILURE(ec)) { |
+ break; |
+ } |
+ if (u_strcmp(uCountry, region) == 0) { |
+ map[idx++] = i; |
+ } |
+ } |
+ if (U_SUCCESS(ec)) { |
+ len = count; |
+ } else { |
+ uprv_free(map); |
+ map = NULL; |
+ } |
+ } else { |
+ U_DEBUG_TZ_MSG(("Failed to load tz for region %s: %s\n", country, u_errorName(ec))); |
+ } |
+ } |
+ } |
+ ures_close(res); |
+ } |
+ |
+ TZEnumeration(const TZEnumeration &other) : StringEnumeration(), map(NULL), len(0), pos(0) { |
+ if(other.len > 0) { |
+ if(other.map != NULL) { |
+ map = (int32_t *)uprv_malloc(other.len * sizeof(int32_t)); |
+ if(map != NULL) { |
+ len = other.len; |
+ uprv_memcpy(map, other.map, len * sizeof(int32_t)); |
+ pos = other.pos; |
+ } |
+ } else { |
+ len = other.len; |
+ pos = other.pos; |
+ } |
+ } |
+ } |
+ |
+ virtual ~TZEnumeration() { |
+ uprv_free(map); |
+ } |
+ |
+ virtual StringEnumeration *clone() const { |
+ return new TZEnumeration(*this); |
+ } |
+ |
+ virtual int32_t count(UErrorCode& status) const { |
+ return U_FAILURE(status) ? 0 : len; |
+ } |
+ |
+ virtual const UnicodeString* snext(UErrorCode& status) { |
+ if (U_SUCCESS(status) && pos < len) { |
+ getID((map == 0) ? pos : map[pos]); |
+ ++pos; |
+ return &unistr; |
+ } |
+ return 0; |
+ } |
+ |
+ virtual void reset(UErrorCode& /*status*/) { |
+ pos = 0; |
+ } |
+ |
+public: |
+ static UClassID U_EXPORT2 getStaticClassID(void); |
+ virtual UClassID getDynamicClassID(void) const; |
+}; |
+ |
+UOBJECT_DEFINE_RTTI_IMPLEMENTATION(TZEnumeration) |
+ |
+StringEnumeration* U_EXPORT2 |
+TimeZone::createEnumeration() { |
+ return new TZEnumeration(); |
+} |
+ |
+StringEnumeration* U_EXPORT2 |
+TimeZone::createEnumeration(int32_t rawOffset) { |
+ return new TZEnumeration(rawOffset); |
+} |
+ |
+StringEnumeration* U_EXPORT2 |
+TimeZone::createEnumeration(const char* country) { |
+ return new TZEnumeration(country); |
+} |
+ |
+// --------------------------------------- |
+ |
+int32_t U_EXPORT2 |
+TimeZone::countEquivalentIDs(const UnicodeString& id) { |
+ int32_t result = 0; |
+ UErrorCode ec = U_ZERO_ERROR; |
+ UResourceBundle res; |
+ ures_initStackObject(&res); |
+ U_DEBUG_TZ_MSG(("countEquivalentIDs..\n")); |
+ UResourceBundle *top = openOlsonResource(id, res, ec); |
+ if (U_SUCCESS(ec)) { |
+ UResourceBundle r; |
+ ures_initStackObject(&r); |
+ ures_getByKey(&res, kLINKS, &r, &ec); |
+ ures_getIntVector(&r, &result, &ec); |
+ ures_close(&r); |
+ } |
+ ures_close(&res); |
+ ures_close(top); |
+ return result; |
+} |
+ |
+// --------------------------------------- |
+ |
+const UnicodeString U_EXPORT2 |
+TimeZone::getEquivalentID(const UnicodeString& id, int32_t index) { |
+ U_DEBUG_TZ_MSG(("gEI(%d)\n", index)); |
+ UnicodeString result; |
+ UErrorCode ec = U_ZERO_ERROR; |
+ UResourceBundle res; |
+ ures_initStackObject(&res); |
+ UResourceBundle *top = openOlsonResource(id, res, ec); |
+ int32_t zone = -1; |
+ if (U_SUCCESS(ec)) { |
+ UResourceBundle r; |
+ ures_initStackObject(&r); |
+ int32_t size; |
+ ures_getByKey(&res, kLINKS, &r, &ec); |
+ const int32_t* v = ures_getIntVector(&r, &size, &ec); |
+ if (U_SUCCESS(ec)) { |
+ if (index >= 0 && index < size && getOlsonMeta()) { |
+ zone = v[index]; |
+ } |
+ } |
+ ures_close(&r); |
+ } |
+ ures_close(&res); |
+ if (zone >= 0) { |
+ UResourceBundle *ares = ures_getByKey(top, kNAMES, NULL, &ec); // dereference Zones section |
+ if (U_SUCCESS(ec)) { |
+ int32_t idLen = 0; |
+ const UChar* id = ures_getStringByIndex(ares, zone, &idLen, &ec); |
+ result.fastCopyFrom(UnicodeString(TRUE, id, idLen)); |
+ U_DEBUG_TZ_MSG(("gei(%d) -> %d, len%d, %s\n", index, zone, result.length(), u_errorName(ec))); |
+ } |
+ ures_close(ares); |
+ } |
+ ures_close(top); |
+#if defined(U_DEBUG_TZ) |
+ if(result.length() ==0) { |
+ U_DEBUG_TZ_MSG(("equiv [__, #%d] -> 0 (%s)\n", index, u_errorName(ec))); |
+ } |
+#endif |
+ return result; |
+} |
+ |
+// --------------------------------------- |
+ |
+// These two methods are used by ZoneMeta class only. |
+ |
+const UChar* |
+TimeZone::dereferOlsonLink(const UnicodeString& id) { |
+ const UChar *result = NULL; |
+ UErrorCode ec = U_ZERO_ERROR; |
+ UResourceBundle *rb = ures_openDirect(NULL, kZONEINFO, &ec); |
+ |
+ // resolve zone index by name |
+ UResourceBundle *names = ures_getByKey(rb, kNAMES, NULL, &ec); |
+ int32_t idx = findInStringArray(names, id, ec); |
+ result = ures_getStringByIndex(names, idx, NULL, &ec); |
+ |
+ // open the zone bundle by index |
+ ures_getByKey(rb, kZONES, rb, &ec); |
+ ures_getByIndex(rb, idx, rb, &ec); |
+ |
+ if (U_SUCCESS(ec)) { |
+ if (ures_getType(rb) == URES_INT) { |
+ // this is a link - dereference the link |
+ int32_t deref = ures_getInt(rb, &ec); |
+ const UChar* tmp = ures_getStringByIndex(names, deref, NULL, &ec); |
+ if (U_SUCCESS(ec)) { |
+ result = tmp; |
+ } |
+ } |
+ } |
+ |
+ ures_close(names); |
+ ures_close(rb); |
+ |
+ return result; |
+} |
+ |
+const UChar* |
+TimeZone::getRegion(const UnicodeString& id) { |
+ const UChar *result = WORLD; |
+ UErrorCode ec = U_ZERO_ERROR; |
+ UResourceBundle *rb = ures_openDirect(NULL, kZONEINFO, &ec); |
+ |
+ // resolve zone index by name |
+ UResourceBundle *res = ures_getByKey(rb, kNAMES, NULL, &ec); |
+ int32_t idx = findInStringArray(res, id, ec); |
+ |
+ // get region mapping |
+ ures_getByKey(rb, kREGIONS, res, &ec); |
+ const UChar *tmp = ures_getStringByIndex(res, idx, NULL, &ec); |
+ if (U_SUCCESS(ec)) { |
+ result = tmp; |
+ } |
+ |
+ ures_close(res); |
+ ures_close(rb); |
+ |
+ return result; |
+} |
+ |
+// --------------------------------------- |
+ |
+ |
+UnicodeString& |
+TimeZone::getDisplayName(UnicodeString& result) const |
+{ |
+ return getDisplayName(FALSE,LONG,Locale::getDefault(), result); |
+} |
+ |
+UnicodeString& |
+TimeZone::getDisplayName(const Locale& locale, UnicodeString& result) const |
+{ |
+ return getDisplayName(FALSE, LONG, locale, result); |
+} |
+ |
+UnicodeString& |
+TimeZone::getDisplayName(UBool daylight, EDisplayType style, UnicodeString& result) const |
+{ |
+ return getDisplayName(daylight,style, Locale::getDefault(), result); |
+} |
+//-------------------------------------- |
+int32_t |
+TimeZone::getDSTSavings()const { |
+ if (useDaylightTime()) { |
+ return 3600000; |
+ } |
+ return 0; |
+} |
+//--------------------------------------- |
+UnicodeString& |
+TimeZone::getDisplayName(UBool daylight, EDisplayType style, const Locale& locale, UnicodeString& result) const |
+{ |
+ // SRL TODO: cache the SDF, just like java. |
+ UErrorCode status = U_ZERO_ERROR; |
+#ifdef U_DEBUG_TZ |
+ char buf[128]; |
+ fID.extract(0, sizeof(buf)-1, buf, sizeof(buf), ""); |
+#endif |
+ |
+ // select the proper format string |
+ UnicodeString pat; |
+ switch(style){ |
+ case LONG: |
+ pat = ZZZZ_STR; |
+ break; |
+ case SHORT_GENERIC: |
+ pat = V_STR; |
+ break; |
+ case LONG_GENERIC: |
+ pat = VVVV_STR; |
+ break; |
+ case SHORT_GMT: |
+ pat = Z_UC_STR; |
+ break; |
+ case LONG_GMT: |
+ pat = ZZZZ_UC_STR; |
+ break; |
+ case SHORT_COMMONLY_USED: |
+ //pat = V_UC_STR; |
+ pat = Z_STR; |
+ break; |
+ case GENERIC_LOCATION: |
+ pat = VVVV_UC_STR; |
+ break; |
+ default: // SHORT |
+ //pat = Z_STR; |
+ pat = V_UC_STR; |
+ break; |
+ } |
+ |
+ SimpleDateFormat format(pat, locale, status); |
+ U_DEBUG_TZ_MSG(("getDisplayName(%s)\n", buf)); |
+ if(!U_SUCCESS(status)) |
+ { |
+#ifdef U_DEBUG_TZ |
+ char buf2[128]; |
+ result.extract(0, sizeof(buf2)-1, buf2, sizeof(buf2), ""); |
+ U_DEBUG_TZ_MSG(("getDisplayName(%s) -> %s\n", buf, buf2)); |
+#endif |
+ return result.remove(); |
+ } |
+ |
+ UDate d = Calendar::getNow(); |
+ int32_t rawOffset; |
+ int32_t dstOffset; |
+ this->getOffset(d, FALSE, rawOffset, dstOffset, status); |
+ if (U_FAILURE(status)) { |
+ return result.remove(); |
+ } |
+ |
+ if ((daylight && dstOffset != 0) || |
+ (!daylight && dstOffset == 0) || |
+ (style == SHORT_GENERIC) || |
+ (style == LONG_GENERIC) |
+ ) { |
+ // Current time and the request (daylight / not daylight) agree. |
+ format.setTimeZone(*this); |
+ return format.format(d, result); |
+ } |
+ |
+ // Create a new SimpleTimeZone as a stand-in for this zone; the |
+ // stand-in will have no DST, or DST during July, but the same ID and offset, |
+ // and hence the same display name. |
+ // We don't cache these because they're small and cheap to create. |
+ UnicodeString tempID; |
+ getID(tempID); |
+ SimpleTimeZone *tz = NULL; |
+ if(daylight && useDaylightTime()){ |
+ // The display name for daylight saving time was requested, but currently not in DST |
+ // Set a fixed date (July 1) in this Gregorian year |
+ GregorianCalendar cal(*this, status); |
+ if (U_FAILURE(status)) { |
+ return result.remove(); |
+ } |
+ cal.set(UCAL_MONTH, UCAL_JULY); |
+ cal.set(UCAL_DATE, 1); |
+ |
+ // Get July 1 date |
+ d = cal.getTime(status); |
+ |
+ // Check if it is in DST |
+ if (cal.get(UCAL_DST_OFFSET, status) == 0) { |
+ // We need to create a fake time zone |
+ tz = new SimpleTimeZone(rawOffset, tempID, |
+ UCAL_JUNE, 1, 0, 0, |
+ UCAL_AUGUST, 1, 0, 0, |
+ getDSTSavings(), status); |
+ if (U_FAILURE(status) || tz == NULL) { |
+ if (U_SUCCESS(status)) { |
+ status = U_MEMORY_ALLOCATION_ERROR; |
+ } |
+ return result.remove(); |
+ } |
+ format.adoptTimeZone(tz); |
+ } else { |
+ format.setTimeZone(*this); |
+ } |
+ } else { |
+ // The display name for standard time was requested, but currently in DST |
+ // or display name for daylight saving time was requested, but this zone no longer |
+ // observes DST. |
+ tz = new SimpleTimeZone(rawOffset, tempID); |
+ if (U_FAILURE(status) || tz == NULL) { |
+ if (U_SUCCESS(status)) { |
+ status = U_MEMORY_ALLOCATION_ERROR; |
+ } |
+ return result.remove(); |
+ } |
+ format.adoptTimeZone(tz); |
+ } |
+ |
+ format.format(d, result, status); |
+ return result; |
+} |
+ |
+/** |
+ * Parse a custom time zone identifier and return a corresponding zone. |
+ * @param id a string of the form GMT[+-]hh:mm, GMT[+-]hhmm, or |
+ * GMT[+-]hh. |
+ * @return a newly created SimpleTimeZone with the given offset and |
+ * no Daylight Savings Time, or null if the id cannot be parsed. |
+*/ |
+TimeZone* |
+TimeZone::createCustomTimeZone(const UnicodeString& id) |
+{ |
+ int32_t sign, hour, min, sec; |
+ if (parseCustomID(id, sign, hour, min, sec)) { |
+ UnicodeString customID; |
+ formatCustomID(hour, min, sec, (sign < 0), customID); |
+ int32_t offset = sign * ((hour * 60 + min) * 60 + sec) * 1000; |
+ return new SimpleTimeZone(offset, customID); |
+ } |
+ return NULL; |
+} |
+ |
+UnicodeString& |
+TimeZone::getCustomID(const UnicodeString& id, UnicodeString& normalized, UErrorCode& status) { |
+ normalized.remove(); |
+ if (U_FAILURE(status)) { |
+ return normalized; |
+ } |
+ int32_t sign, hour, min, sec; |
+ if (parseCustomID(id, sign, hour, min, sec)) { |
+ formatCustomID(hour, min, sec, (sign < 0), normalized); |
+ } |
+ return normalized; |
+} |
+ |
+UBool |
+TimeZone::parseCustomID(const UnicodeString& id, int32_t& sign, |
+ int32_t& hour, int32_t& min, int32_t& sec) { |
+ static const int32_t kParseFailed = -99999; |
+ |
+ NumberFormat* numberFormat = 0; |
+ UnicodeString idUppercase = id; |
+ idUppercase.toUpper(); |
+ |
+ if (id.length() > GMT_ID_LENGTH && |
+ idUppercase.startsWith(GMT_ID)) |
+ { |
+ ParsePosition pos(GMT_ID_LENGTH); |
+ sign = 1; |
+ hour = 0; |
+ min = 0; |
+ sec = 0; |
+ |
+ if (id[pos.getIndex()] == MINUS /*'-'*/) { |
+ sign = -1; |
+ } else if (id[pos.getIndex()] != PLUS /*'+'*/) { |
+ return FALSE; |
+ } |
+ pos.setIndex(pos.getIndex() + 1); |
+ |
+ UErrorCode success = U_ZERO_ERROR; |
+ numberFormat = NumberFormat::createInstance(success); |
+ if(U_FAILURE(success)){ |
+ return FALSE; |
+ } |
+ numberFormat->setParseIntegerOnly(TRUE); |
+ |
+ // Look for either hh:mm, hhmm, or hh |
+ int32_t start = pos.getIndex(); |
+ Formattable n(kParseFailed); |
+ numberFormat->parse(id, n, pos); |
+ if (pos.getIndex() == start) { |
+ delete numberFormat; |
+ return FALSE; |
+ } |
+ hour = n.getLong(); |
+ |
+ if (pos.getIndex() < id.length()) { |
+ if (pos.getIndex() - start > 2 |
+ || id[pos.getIndex()] != COLON) { |
+ delete numberFormat; |
+ return FALSE; |
+ } |
+ // hh:mm |
+ pos.setIndex(pos.getIndex() + 1); |
+ int32_t oldPos = pos.getIndex(); |
+ n.setLong(kParseFailed); |
+ numberFormat->parse(id, n, pos); |
+ if ((pos.getIndex() - oldPos) != 2) { |
+ // must be 2 digits |
+ delete numberFormat; |
+ return FALSE; |
+ } |
+ min = n.getLong(); |
+ if (pos.getIndex() < id.length()) { |
+ if (id[pos.getIndex()] != COLON) { |
+ delete numberFormat; |
+ return FALSE; |
+ } |
+ // [:ss] |
+ pos.setIndex(pos.getIndex() + 1); |
+ oldPos = pos.getIndex(); |
+ n.setLong(kParseFailed); |
+ numberFormat->parse(id, n, pos); |
+ if (pos.getIndex() != id.length() |
+ || (pos.getIndex() - oldPos) != 2) { |
+ delete numberFormat; |
+ return FALSE; |
+ } |
+ sec = n.getLong(); |
+ } |
+ } else { |
+ // Supported formats are below - |
+ // |
+ // HHmmss |
+ // Hmmss |
+ // HHmm |
+ // Hmm |
+ // HH |
+ // H |
+ |
+ int32_t length = pos.getIndex() - start; |
+ if (length <= 0 || 6 < length) { |
+ // invalid length |
+ delete numberFormat; |
+ return FALSE; |
+ } |
+ switch (length) { |
+ case 1: |
+ case 2: |
+ // already set to hour |
+ break; |
+ case 3: |
+ case 4: |
+ min = hour % 100; |
+ hour /= 100; |
+ break; |
+ case 5: |
+ case 6: |
+ sec = hour % 100; |
+ min = (hour/100) % 100; |
+ hour /= 10000; |
+ break; |
+ } |
+ } |
+ |
+ delete numberFormat; |
+ |
+ if (hour > kMAX_CUSTOM_HOUR || min > kMAX_CUSTOM_MIN || sec > kMAX_CUSTOM_SEC) { |
+ return FALSE; |
+ } |
+ return TRUE; |
+ } |
+ return FALSE; |
+} |
+ |
+UnicodeString& |
+TimeZone::formatCustomID(int32_t hour, int32_t min, int32_t sec, |
+ UBool negative, UnicodeString& id) { |
+ // Create time zone ID - GMT[+|-]hhmm[ss] |
+ id.setTo(GMT_ID); |
+ if (hour | min | sec) { |
+ if (negative) { |
+ id += (UChar)MINUS; |
+ } else { |
+ id += (UChar)PLUS; |
+ } |
+ |
+ if (hour < 10) { |
+ id += (UChar)ZERO_DIGIT; |
+ } else { |
+ id += (UChar)(ZERO_DIGIT + hour/10); |
+ } |
+ id += (UChar)(ZERO_DIGIT + hour%10); |
+ id += (UChar)COLON; |
+ if (min < 10) { |
+ id += (UChar)ZERO_DIGIT; |
+ } else { |
+ id += (UChar)(ZERO_DIGIT + min/10); |
+ } |
+ id += (UChar)(ZERO_DIGIT + min%10); |
+ |
+ if (sec) { |
+ id += (UChar)COLON; |
+ if (sec < 10) { |
+ id += (UChar)ZERO_DIGIT; |
+ } else { |
+ id += (UChar)(ZERO_DIGIT + sec/10); |
+ } |
+ id += (UChar)(ZERO_DIGIT + sec%10); |
+ } |
+ } |
+ return id; |
+} |
+ |
+ |
+UBool |
+TimeZone::hasSameRules(const TimeZone& other) const |
+{ |
+ return (getRawOffset() == other.getRawOffset() && |
+ useDaylightTime() == other.useDaylightTime()); |
+} |
+ |
+const char* |
+TimeZone::getTZDataVersion(UErrorCode& status) |
+{ |
+ /* This is here to prevent race conditions. */ |
+ UBool needsInit; |
+ UMTX_CHECK(&LOCK, !TZDataVersionInitialized, needsInit); |
+ if (needsInit) { |
+ int32_t len = 0; |
+ UResourceBundle *bundle = ures_openDirect(NULL, kZONEINFO, &status); |
+ const UChar *tzver = ures_getStringByKey(bundle, kTZVERSION, |
+ &len, &status); |
+ |
+ if (U_SUCCESS(status)) { |
+ if (len >= (int32_t)sizeof(TZDATA_VERSION)) { |
+ // Ensure that there is always space for a trailing nul in TZDATA_VERSION |
+ len = sizeof(TZDATA_VERSION) - 1; |
+ } |
+ umtx_lock(&LOCK); |
+ if (!TZDataVersionInitialized) { |
+ u_UCharsToChars(tzver, TZDATA_VERSION, len); |
+ TZDataVersionInitialized = TRUE; |
+ } |
+ umtx_unlock(&LOCK); |
+ ucln_i18n_registerCleanup(UCLN_I18N_TIMEZONE, timeZone_cleanup); |
+ } |
+ |
+ ures_close(bundle); |
+ } |
+ if (U_FAILURE(status)) { |
+ return NULL; |
+ } |
+ return (const char*)TZDATA_VERSION; |
+} |
+ |
+UnicodeString& |
+TimeZone::getCanonicalID(const UnicodeString& id, UnicodeString& canonicalID, UErrorCode& status) |
+{ |
+ UBool isSystemID = FALSE; |
+ return getCanonicalID(id, canonicalID, isSystemID, status); |
+} |
+ |
+UnicodeString& |
+TimeZone::getCanonicalID(const UnicodeString& id, UnicodeString& canonicalID, UBool& isSystemID, |
+ UErrorCode& status) |
+{ |
+ canonicalID.remove(); |
+ isSystemID = FALSE; |
+ if (U_FAILURE(status)) { |
+ return canonicalID; |
+ } |
+ ZoneMeta::getCanonicalSystemID(id, canonicalID, status); |
+ if (U_SUCCESS(status)) { |
+ isSystemID = TRUE; |
+ } else { |
+ // Not a system ID |
+ status = U_ZERO_ERROR; |
+ getCustomID(id, canonicalID, status); |
+ } |
+ return canonicalID; |
+} |
+ |
+U_NAMESPACE_END |
+ |
+#endif /* #if !UCONFIG_NO_FORMATTING */ |
+ |
+//eof |
Property changes on: icu46/source/i18n/timezone.cpp |
___________________________________________________________________ |
Added: svn:eol-style |
+ LF |