diff options
Diffstat (limited to 'deps/node/deps/icu-small/source/i18n/zonemeta.cpp')
| -rw-r--r-- | deps/node/deps/icu-small/source/i18n/zonemeta.cpp | 944 |
1 files changed, 0 insertions, 944 deletions
diff --git a/deps/node/deps/icu-small/source/i18n/zonemeta.cpp b/deps/node/deps/icu-small/source/i18n/zonemeta.cpp deleted file mode 100644 index b7139a80..00000000 --- a/deps/node/deps/icu-small/source/i18n/zonemeta.cpp +++ /dev/null @@ -1,944 +0,0 @@ -// © 2016 and later: Unicode, Inc. and others. -// License & terms of use: http://www.unicode.org/copyright.html -/* -******************************************************************************* -* Copyright (C) 2007-2014, International Business Machines Corporation and -* others. All Rights Reserved. -******************************************************************************* -*/ - -#include "unicode/utypes.h" - -#if !UCONFIG_NO_FORMATTING - -#include "zonemeta.h" - -#include "unicode/timezone.h" -#include "unicode/ustring.h" -#include "unicode/putil.h" -#include "unicode/simpletz.h" -#include "unicode/strenum.h" -#include "umutex.h" -#include "uvector.h" -#include "cmemory.h" -#include "gregoimp.h" -#include "cstring.h" -#include "ucln_in.h" -#include "uassert.h" -#include "uresimp.h" -#include "uhash.h" -#include "olsontz.h" -#include "uinvchar.h" - -static UMutex gZoneMetaLock = U_MUTEX_INITIALIZER; - -// CLDR Canonical ID mapping table -static UHashtable *gCanonicalIDCache = NULL; -static icu::UInitOnce gCanonicalIDCacheInitOnce = U_INITONCE_INITIALIZER; - -// Metazone mapping table -static UHashtable *gOlsonToMeta = NULL; -static icu::UInitOnce gOlsonToMetaInitOnce = U_INITONCE_INITIALIZER; - -// Available metazone IDs vector and table -static icu::UVector *gMetaZoneIDs = NULL; -static UHashtable *gMetaZoneIDTable = NULL; -static icu::UInitOnce gMetaZoneIDsInitOnce = U_INITONCE_INITIALIZER; - -// Country info vectors -static icu::UVector *gSingleZoneCountries = NULL; -static icu::UVector *gMultiZonesCountries = NULL; -static icu::UInitOnce gCountryInfoVectorsInitOnce = U_INITONCE_INITIALIZER; - -U_CDECL_BEGIN - -/** - * Cleanup callback func - */ -static UBool U_CALLCONV zoneMeta_cleanup(void) -{ - if (gCanonicalIDCache != NULL) { - uhash_close(gCanonicalIDCache); - gCanonicalIDCache = NULL; - } - gCanonicalIDCacheInitOnce.reset(); - - if (gOlsonToMeta != NULL) { - uhash_close(gOlsonToMeta); - gOlsonToMeta = NULL; - } - gOlsonToMetaInitOnce.reset(); - - if (gMetaZoneIDTable != NULL) { - uhash_close(gMetaZoneIDTable); - gMetaZoneIDTable = NULL; - } - // delete after closing gMetaZoneIDTable, because it holds - // value objects held by the hashtable - delete gMetaZoneIDs; - gMetaZoneIDs = NULL; - gMetaZoneIDsInitOnce.reset(); - - delete gSingleZoneCountries; - gSingleZoneCountries = NULL; - delete gMultiZonesCountries; - gMultiZonesCountries = NULL; - gCountryInfoVectorsInitOnce.reset(); - - return TRUE; -} - -/** - * Deleter for UChar* string - */ -static void U_CALLCONV -deleteUCharString(void *obj) { - UChar *entry = (UChar*)obj; - uprv_free(entry); -} - -/** - * Deleter for UVector - */ -static void U_CALLCONV -deleteUVector(void *obj) { - delete (icu::UVector*) obj; -} - -/** - * Deleter for OlsonToMetaMappingEntry - */ -static void U_CALLCONV -deleteOlsonToMetaMappingEntry(void *obj) { - icu::OlsonToMetaMappingEntry *entry = (icu::OlsonToMetaMappingEntry*)obj; - uprv_free(entry); -} - -U_CDECL_END - -U_NAMESPACE_BEGIN - -#define ZID_KEY_MAX 128 - -static const char gMetaZones[] = "metaZones"; -static const char gMetazoneInfo[] = "metazoneInfo"; -static const char gMapTimezonesTag[] = "mapTimezones"; - -static const char gKeyTypeData[] = "keyTypeData"; -static const char gTypeAliasTag[] = "typeAlias"; -static const char gTypeMapTag[] = "typeMap"; -static const char gTimezoneTag[] = "timezone"; - -static const char gPrimaryZonesTag[] = "primaryZones"; - -static const char gWorldTag[] = "001"; - -static const UChar gWorld[] = {0x30, 0x30, 0x31, 0x00}; // "001" - -static const UChar gDefaultFrom[] = {0x31, 0x39, 0x37, 0x30, 0x2D, 0x30, 0x31, 0x2D, 0x30, 0x31, - 0x20, 0x30, 0x30, 0x3A, 0x30, 0x30, 0x00}; // "1970-01-01 00:00" -static const UChar gDefaultTo[] = {0x39, 0x39, 0x39, 0x39, 0x2D, 0x31, 0x32, 0x2D, 0x33, 0x31, - 0x20, 0x32, 0x33, 0x3A, 0x35, 0x39, 0x00}; // "9999-12-31 23:59" - -static const UChar gCustomTzPrefix[] = {0x47, 0x4D, 0x54, 0}; // "GMT" - -#define ASCII_DIGIT(c) (((c)>=0x30 && (c)<=0x39) ? (c)-0x30 : -1) - -/* - * Convert a date string used by metazone mappings to UDate. - * The format used by CLDR metazone mapping is "yyyy-MM-dd HH:mm". - */ -static UDate -parseDate (const UChar *text, UErrorCode &status) { - if (U_FAILURE(status)) { - return 0; - } - int32_t len = u_strlen(text); - if (len != 16 && len != 10) { - // It must be yyyy-MM-dd HH:mm (length 16) or yyyy-MM-dd (length 10) - status = U_INVALID_FORMAT_ERROR; - return 0; - } - - int32_t year = 0, month = 0, day = 0, hour = 0, min = 0, n; - int32_t idx; - - // "yyyy" (0 - 3) - for (idx = 0; idx <= 3 && U_SUCCESS(status); idx++) { - n = ASCII_DIGIT((int32_t)text[idx]); - if (n >= 0) { - year = 10*year + n; - } else { - status = U_INVALID_FORMAT_ERROR; - } - } - // "MM" (5 - 6) - for (idx = 5; idx <= 6 && U_SUCCESS(status); idx++) { - n = ASCII_DIGIT((int32_t)text[idx]); - if (n >= 0) { - month = 10*month + n; - } else { - status = U_INVALID_FORMAT_ERROR; - } - } - // "dd" (8 - 9) - for (idx = 8; idx <= 9 && U_SUCCESS(status); idx++) { - n = ASCII_DIGIT((int32_t)text[idx]); - if (n >= 0) { - day = 10*day + n; - } else { - status = U_INVALID_FORMAT_ERROR; - } - } - if (len == 16) { - // "HH" (11 - 12) - for (idx = 11; idx <= 12 && U_SUCCESS(status); idx++) { - n = ASCII_DIGIT((int32_t)text[idx]); - if (n >= 0) { - hour = 10*hour + n; - } else { - status = U_INVALID_FORMAT_ERROR; - } - } - // "mm" (14 - 15) - for (idx = 14; idx <= 15 && U_SUCCESS(status); idx++) { - n = ASCII_DIGIT((int32_t)text[idx]); - if (n >= 0) { - min = 10*min + n; - } else { - status = U_INVALID_FORMAT_ERROR; - } - } - } - - if (U_SUCCESS(status)) { - UDate date = Grego::fieldsToDay(year, month - 1, day) * U_MILLIS_PER_DAY - + hour * U_MILLIS_PER_HOUR + min * U_MILLIS_PER_MINUTE; - return date; - } - return 0; -} - -static void U_CALLCONV initCanonicalIDCache(UErrorCode &status) { - gCanonicalIDCache = uhash_open(uhash_hashUChars, uhash_compareUChars, NULL, &status); - if (gCanonicalIDCache == NULL) { - status = U_MEMORY_ALLOCATION_ERROR; - } - if (U_FAILURE(status)) { - gCanonicalIDCache = NULL; - } - // No key/value deleters - keys/values are from a resource bundle - ucln_i18n_registerCleanup(UCLN_I18N_ZONEMETA, zoneMeta_cleanup); -} - - -const UChar* U_EXPORT2 -ZoneMeta::getCanonicalCLDRID(const UnicodeString &tzid, UErrorCode& status) { - if (U_FAILURE(status)) { - return NULL; - } - - if (tzid.isBogus() || tzid.length() > ZID_KEY_MAX) { - status = U_ILLEGAL_ARGUMENT_ERROR; - return NULL; - } - - // Checking the cached results - umtx_initOnce(gCanonicalIDCacheInitOnce, &initCanonicalIDCache, status); - if (U_FAILURE(status)) { - return NULL; - } - - const UChar *canonicalID = NULL; - - UErrorCode tmpStatus = U_ZERO_ERROR; - UChar utzid[ZID_KEY_MAX + 1]; - tzid.extract(utzid, ZID_KEY_MAX + 1, tmpStatus); - U_ASSERT(tmpStatus == U_ZERO_ERROR); // we checked the length of tzid already - - if (!uprv_isInvariantUString(utzid, -1)) { - // All of known tz IDs are only containing ASCII invariant characters. - status = U_ILLEGAL_ARGUMENT_ERROR; - return NULL; - } - - // Check if it was already cached - umtx_lock(&gZoneMetaLock); - { - canonicalID = (const UChar *)uhash_get(gCanonicalIDCache, utzid); - } - umtx_unlock(&gZoneMetaLock); - - if (canonicalID != NULL) { - return canonicalID; - } - - // If not, resolve CLDR canonical ID with resource data - UBool isInputCanonical = FALSE; - char id[ZID_KEY_MAX + 1]; - tzid.extract(0, 0x7fffffff, id, UPRV_LENGTHOF(id), US_INV); - - // replace '/' with ':' - char *p = id; - while (*p++) { - if (*p == '/') { - *p = ':'; - } - } - - UResourceBundle *top = ures_openDirect(NULL, gKeyTypeData, &tmpStatus); - UResourceBundle *rb = ures_getByKey(top, gTypeMapTag, NULL, &tmpStatus); - ures_getByKey(rb, gTimezoneTag, rb, &tmpStatus); - ures_getByKey(rb, id, rb, &tmpStatus); - if (U_SUCCESS(tmpStatus)) { - // type entry (canonical) found - // the input is the canonical ID. resolve to const UChar* - canonicalID = TimeZone::findID(tzid); - isInputCanonical = TRUE; - } - - if (canonicalID == NULL) { - // If a map element not found, then look for an alias - tmpStatus = U_ZERO_ERROR; - ures_getByKey(top, gTypeAliasTag, rb, &tmpStatus); - ures_getByKey(rb, gTimezoneTag, rb, &tmpStatus); - const UChar *canonical = ures_getStringByKey(rb,id,NULL,&tmpStatus); - if (U_SUCCESS(tmpStatus)) { - // canonical map found - canonicalID = canonical; - } - - if (canonicalID == NULL) { - // Dereference the input ID using the tz data - const UChar *derefer = TimeZone::dereferOlsonLink(tzid); - if (derefer == NULL) { - status = U_ILLEGAL_ARGUMENT_ERROR; - } else { - int32_t len = u_strlen(derefer); - u_UCharsToChars(derefer,id,len); - id[len] = (char) 0; // Make sure it is null terminated. - - // replace '/' with ':' - char *q = id; - while (*q++) { - if (*q == '/') { - *q = ':'; - } - } - - // If a dereference turned something up then look for an alias. - // rb still points to the alias table, so we don't have to go looking - // for it. - tmpStatus = U_ZERO_ERROR; - canonical = ures_getStringByKey(rb,id,NULL,&tmpStatus); - if (U_SUCCESS(tmpStatus)) { - // canonical map for the dereferenced ID found - canonicalID = canonical; - } else { - canonicalID = derefer; - isInputCanonical = TRUE; - } - } - } - } - ures_close(rb); - ures_close(top); - - if (U_SUCCESS(status)) { - U_ASSERT(canonicalID != NULL); // canocanilD must be non-NULL here - - // Put the resolved canonical ID to the cache - umtx_lock(&gZoneMetaLock); - { - const UChar* idInCache = (const UChar *)uhash_get(gCanonicalIDCache, utzid); - if (idInCache == NULL) { - const UChar* key = ZoneMeta::findTimeZoneID(tzid); - U_ASSERT(key != NULL); - if (key != NULL) { - idInCache = (const UChar *)uhash_put(gCanonicalIDCache, (void *)key, (void *)canonicalID, &status); - U_ASSERT(idInCache == NULL); - } - } - if (U_SUCCESS(status) && isInputCanonical) { - // Also put canonical ID itself into the cache if not exist - const UChar *canonicalInCache = (const UChar*)uhash_get(gCanonicalIDCache, canonicalID); - if (canonicalInCache == NULL) { - canonicalInCache = (const UChar *)uhash_put(gCanonicalIDCache, (void *)canonicalID, (void *)canonicalID, &status); - U_ASSERT(canonicalInCache == NULL); - } - } - } - umtx_unlock(&gZoneMetaLock); - } - - return canonicalID; -} - -UnicodeString& U_EXPORT2 -ZoneMeta::getCanonicalCLDRID(const UnicodeString &tzid, UnicodeString &systemID, UErrorCode& status) { - const UChar *canonicalID = getCanonicalCLDRID(tzid, status); - if (U_FAILURE(status) || canonicalID == NULL) { - systemID.setToBogus(); - return systemID; - } - systemID.setTo(TRUE, canonicalID, -1); - return systemID; -} - -const UChar* U_EXPORT2 -ZoneMeta::getCanonicalCLDRID(const TimeZone& tz) { - if (dynamic_cast<const OlsonTimeZone *>(&tz) != NULL) { - // short cut for OlsonTimeZone - const OlsonTimeZone *otz = (const OlsonTimeZone*)&tz; - return otz->getCanonicalID(); - } - UErrorCode status = U_ZERO_ERROR; - UnicodeString tzID; - return getCanonicalCLDRID(tz.getID(tzID), status); -} - -static void U_CALLCONV countryInfoVectorsInit(UErrorCode &status) { - // Create empty vectors - // No deleters for these UVectors, it's a reference to a resource bundle string. - gSingleZoneCountries = new UVector(NULL, uhash_compareUChars, status); - if (gSingleZoneCountries == NULL) { - status = U_MEMORY_ALLOCATION_ERROR; - } - gMultiZonesCountries = new UVector(NULL, uhash_compareUChars, status); - if (gMultiZonesCountries == NULL) { - status = U_MEMORY_ALLOCATION_ERROR; - } - - if (U_FAILURE(status)) { - delete gSingleZoneCountries; - delete gMultiZonesCountries; - gSingleZoneCountries = NULL; - gMultiZonesCountries = NULL; - } - ucln_i18n_registerCleanup(UCLN_I18N_ZONEMETA, zoneMeta_cleanup); -} - - -UnicodeString& U_EXPORT2 -ZoneMeta::getCanonicalCountry(const UnicodeString &tzid, UnicodeString &country, UBool *isPrimary /* = NULL */) { - if (isPrimary != NULL) { - *isPrimary = FALSE; - } - - const UChar *region = TimeZone::getRegion(tzid); - if (region != NULL && u_strcmp(gWorld, region) != 0) { - country.setTo(region, -1); - } else { - country.setToBogus(); - return country; - } - - if (isPrimary != NULL) { - char regionBuf[] = {0, 0, 0}; - - // Checking the cached results - UErrorCode status = U_ZERO_ERROR; - umtx_initOnce(gCountryInfoVectorsInitOnce, &countryInfoVectorsInit, status); - if (U_FAILURE(status)) { - return country; - } - - // Check if it was already cached - UBool cached = FALSE; - UBool singleZone = FALSE; - umtx_lock(&gZoneMetaLock); - { - singleZone = cached = gSingleZoneCountries->contains((void*)region); - if (!cached) { - cached = gMultiZonesCountries->contains((void*)region); - } - } - umtx_unlock(&gZoneMetaLock); - - if (!cached) { - // We need to go through all zones associated with the region. - // This is relatively heavy operation. - - U_ASSERT(u_strlen(region) == 2); - - u_UCharsToChars(region, regionBuf, 2); - - StringEnumeration *ids = TimeZone::createTimeZoneIDEnumeration(UCAL_ZONE_TYPE_CANONICAL_LOCATION, regionBuf, NULL, status); - int32_t idsLen = ids->count(status); - if (U_SUCCESS(status) && idsLen == 1) { - // only the single zone is available for the region - singleZone = TRUE; - } - delete ids; - - // Cache the result - umtx_lock(&gZoneMetaLock); - { - UErrorCode ec = U_ZERO_ERROR; - if (singleZone) { - if (!gSingleZoneCountries->contains((void*)region)) { - gSingleZoneCountries->addElement((void*)region, ec); - } - } else { - if (!gMultiZonesCountries->contains((void*)region)) { - gMultiZonesCountries->addElement((void*)region, ec); - } - } - } - umtx_unlock(&gZoneMetaLock); - } - - if (singleZone) { - *isPrimary = TRUE; - } else { - // Note: We may cache the primary zone map in future. - - // Even a country has multiple zones, one of them might be - // dominant and treated as a primary zone - int32_t idLen = 0; - if (regionBuf[0] == 0) { - u_UCharsToChars(region, regionBuf, 2); - } - - UResourceBundle *rb = ures_openDirect(NULL, gMetaZones, &status); - ures_getByKey(rb, gPrimaryZonesTag, rb, &status); - const UChar *primaryZone = ures_getStringByKey(rb, regionBuf, &idLen, &status); - if (U_SUCCESS(status)) { - if (tzid.compare(primaryZone, idLen) == 0) { - *isPrimary = TRUE; - } else { - // The given ID might not be a canonical ID - UnicodeString canonicalID; - TimeZone::getCanonicalID(tzid, canonicalID, status); - if (U_SUCCESS(status) && canonicalID.compare(primaryZone, idLen) == 0) { - *isPrimary = TRUE; - } - } - } - ures_close(rb); - } - } - - return country; -} - -UnicodeString& U_EXPORT2 -ZoneMeta::getMetazoneID(const UnicodeString &tzid, UDate date, UnicodeString &result) { - UBool isSet = FALSE; - const UVector *mappings = getMetazoneMappings(tzid); - if (mappings != NULL) { - for (int32_t i = 0; i < mappings->size(); i++) { - OlsonToMetaMappingEntry *mzm = (OlsonToMetaMappingEntry*)mappings->elementAt(i); - if (mzm->from <= date && mzm->to > date) { - result.setTo(mzm->mzid, -1); - isSet = TRUE; - break; - } - } - } - if (!isSet) { - result.setToBogus(); - } - return result; -} - -static void U_CALLCONV olsonToMetaInit(UErrorCode &status) { - U_ASSERT(gOlsonToMeta == NULL); - ucln_i18n_registerCleanup(UCLN_I18N_ZONEMETA, zoneMeta_cleanup); - gOlsonToMeta = uhash_open(uhash_hashUChars, uhash_compareUChars, NULL, &status); - if (U_FAILURE(status)) { - gOlsonToMeta = NULL; - } else { - uhash_setKeyDeleter(gOlsonToMeta, deleteUCharString); - uhash_setValueDeleter(gOlsonToMeta, deleteUVector); - } -} - - -const UVector* U_EXPORT2 -ZoneMeta::getMetazoneMappings(const UnicodeString &tzid) { - UErrorCode status = U_ZERO_ERROR; - UChar tzidUChars[ZID_KEY_MAX + 1]; - tzid.extract(tzidUChars, ZID_KEY_MAX + 1, status); - if (U_FAILURE(status) || status == U_STRING_NOT_TERMINATED_WARNING) { - return NULL; - } - - umtx_initOnce(gOlsonToMetaInitOnce, &olsonToMetaInit, status); - if (U_FAILURE(status)) { - return NULL; - } - - // get the mapping from cache - const UVector *result = NULL; - - umtx_lock(&gZoneMetaLock); - { - result = (UVector*) uhash_get(gOlsonToMeta, tzidUChars); - } - umtx_unlock(&gZoneMetaLock); - - if (result != NULL) { - return result; - } - - // miss the cache - create new one - UVector *tmpResult = createMetazoneMappings(tzid); - if (tmpResult == NULL) { - // not available - return NULL; - } - - // put the new one into the cache - umtx_lock(&gZoneMetaLock); - { - // make sure it's already created - result = (UVector*) uhash_get(gOlsonToMeta, tzidUChars); - if (result == NULL) { - // add the one just created - int32_t tzidLen = tzid.length() + 1; - UChar *key = (UChar*)uprv_malloc(tzidLen * sizeof(UChar)); - if (key == NULL) { - // memory allocation error.. just return NULL - result = NULL; - delete tmpResult; - } else { - tzid.extract(key, tzidLen, status); - uhash_put(gOlsonToMeta, key, tmpResult, &status); - if (U_FAILURE(status)) { - // delete the mapping - result = NULL; - delete tmpResult; - } else { - result = tmpResult; - } - } - } else { - // another thread already put the one - delete tmpResult; - } - } - umtx_unlock(&gZoneMetaLock); - - return result; -} - -UVector* -ZoneMeta::createMetazoneMappings(const UnicodeString &tzid) { - UVector *mzMappings = NULL; - UErrorCode status = U_ZERO_ERROR; - - UnicodeString canonicalID; - UResourceBundle *rb = ures_openDirect(NULL, gMetaZones, &status); - ures_getByKey(rb, gMetazoneInfo, rb, &status); - getCanonicalCLDRID(tzid, canonicalID, status); - - if (U_SUCCESS(status)) { - char tzKey[ZID_KEY_MAX + 1]; - int32_t tzKeyLen = canonicalID.extract(0, canonicalID.length(), tzKey, sizeof(tzKey), US_INV); - tzKey[tzKeyLen] = 0; - - // tzid keys are using ':' as separators - char *p = tzKey; - while (*p) { - if (*p == '/') { - *p = ':'; - } - p++; - } - - ures_getByKey(rb, tzKey, rb, &status); - - if (U_SUCCESS(status)) { - UResourceBundle *mz = NULL; - while (ures_hasNext(rb)) { - mz = ures_getNextResource(rb, mz, &status); - - const UChar *mz_name = ures_getStringByIndex(mz, 0, NULL, &status); - const UChar *mz_from = gDefaultFrom; - const UChar *mz_to = gDefaultTo; - - if (ures_getSize(mz) == 3) { - mz_from = ures_getStringByIndex(mz, 1, NULL, &status); - mz_to = ures_getStringByIndex(mz, 2, NULL, &status); - } - - if(U_FAILURE(status)){ - status = U_ZERO_ERROR; - continue; - } - // We do not want to use SimpleDateformat to parse boundary dates, - // because this code could be triggered by the initialization code - // used by SimpleDateFormat. - UDate from = parseDate(mz_from, status); - UDate to = parseDate(mz_to, status); - if (U_FAILURE(status)) { - status = U_ZERO_ERROR; - continue; - } - - OlsonToMetaMappingEntry *entry = (OlsonToMetaMappingEntry*)uprv_malloc(sizeof(OlsonToMetaMappingEntry)); - if (entry == NULL) { - status = U_MEMORY_ALLOCATION_ERROR; - break; - } - entry->mzid = mz_name; - entry->from = from; - entry->to = to; - - if (mzMappings == NULL) { - mzMappings = new UVector(deleteOlsonToMetaMappingEntry, NULL, status); - if (U_FAILURE(status)) { - delete mzMappings; - mzMappings = NULL; - uprv_free(entry); - break; - } - } - - mzMappings->addElement(entry, status); - if (U_FAILURE(status)) { - break; - } - } - ures_close(mz); - if (U_FAILURE(status)) { - if (mzMappings != NULL) { - delete mzMappings; - mzMappings = NULL; - } - } - } - } - ures_close(rb); - return mzMappings; -} - -UnicodeString& U_EXPORT2 -ZoneMeta::getZoneIdByMetazone(const UnicodeString &mzid, const UnicodeString ®ion, UnicodeString &result) { - UErrorCode status = U_ZERO_ERROR; - const UChar *tzid = NULL; - int32_t tzidLen = 0; - char keyBuf[ZID_KEY_MAX + 1]; - int32_t keyLen = 0; - - if (mzid.isBogus() || mzid.length() > ZID_KEY_MAX) { - result.setToBogus(); - return result; - } - - keyLen = mzid.extract(0, mzid.length(), keyBuf, ZID_KEY_MAX + 1, US_INV); - keyBuf[keyLen] = 0; - - UResourceBundle *rb = ures_openDirect(NULL, gMetaZones, &status); - ures_getByKey(rb, gMapTimezonesTag, rb, &status); - ures_getByKey(rb, keyBuf, rb, &status); - - if (U_SUCCESS(status)) { - // check region mapping - if (region.length() == 2 || region.length() == 3) { - keyLen = region.extract(0, region.length(), keyBuf, ZID_KEY_MAX + 1, US_INV); - keyBuf[keyLen] = 0; - tzid = ures_getStringByKey(rb, keyBuf, &tzidLen, &status); - if (status == U_MISSING_RESOURCE_ERROR) { - status = U_ZERO_ERROR; - } - } - if (U_SUCCESS(status) && tzid == NULL) { - // try "001" - tzid = ures_getStringByKey(rb, gWorldTag, &tzidLen, &status); - } - } - ures_close(rb); - - if (tzid == NULL) { - result.setToBogus(); - } else { - result.setTo(tzid, tzidLen); - } - - return result; -} - -static void U_CALLCONV initAvailableMetaZoneIDs () { - U_ASSERT(gMetaZoneIDs == NULL); - U_ASSERT(gMetaZoneIDTable == NULL); - ucln_i18n_registerCleanup(UCLN_I18N_ZONEMETA, zoneMeta_cleanup); - - UErrorCode status = U_ZERO_ERROR; - gMetaZoneIDTable = uhash_open(uhash_hashUnicodeString, uhash_compareUnicodeString, NULL, &status); - if (U_FAILURE(status) || gMetaZoneIDTable == NULL) { - gMetaZoneIDTable = NULL; - return; - } - uhash_setKeyDeleter(gMetaZoneIDTable, uprv_deleteUObject); - // No valueDeleter, because the vector maintain the value objects - gMetaZoneIDs = new UVector(NULL, uhash_compareUChars, status); - if (U_FAILURE(status) || gMetaZoneIDs == NULL) { - gMetaZoneIDs = NULL; - uhash_close(gMetaZoneIDTable); - gMetaZoneIDTable = NULL; - return; - } - gMetaZoneIDs->setDeleter(uprv_free); - - UResourceBundle *rb = ures_openDirect(NULL, gMetaZones, &status); - UResourceBundle *bundle = ures_getByKey(rb, gMapTimezonesTag, NULL, &status); - UResourceBundle res; - ures_initStackObject(&res); - while (U_SUCCESS(status) && ures_hasNext(bundle)) { - ures_getNextResource(bundle, &res, &status); - if (U_FAILURE(status)) { - break; - } - const char *mzID = ures_getKey(&res); - int32_t len = static_cast<int32_t>(uprv_strlen(mzID)); - UChar *uMzID = (UChar*)uprv_malloc(sizeof(UChar) * (len + 1)); - if (uMzID == NULL) { - status = U_MEMORY_ALLOCATION_ERROR; - break; - } - u_charsToUChars(mzID, uMzID, len); - uMzID[len] = 0; - UnicodeString *usMzID = new UnicodeString(uMzID); - if (uhash_get(gMetaZoneIDTable, usMzID) == NULL) { - gMetaZoneIDs->addElement((void *)uMzID, status); - uhash_put(gMetaZoneIDTable, (void *)usMzID, (void *)uMzID, &status); - } else { - uprv_free(uMzID); - delete usMzID; - } - } - ures_close(&res); - ures_close(bundle); - ures_close(rb); - - if (U_FAILURE(status)) { - uhash_close(gMetaZoneIDTable); - delete gMetaZoneIDs; - gMetaZoneIDTable = NULL; - gMetaZoneIDs = NULL; - } -} - -const UVector* -ZoneMeta::getAvailableMetazoneIDs() { - umtx_initOnce(gMetaZoneIDsInitOnce, &initAvailableMetaZoneIDs); - return gMetaZoneIDs; -} - -const UChar* -ZoneMeta::findMetaZoneID(const UnicodeString& mzid) { - umtx_initOnce(gMetaZoneIDsInitOnce, &initAvailableMetaZoneIDs); - if (gMetaZoneIDTable == NULL) { - return NULL; - } - return (const UChar*)uhash_get(gMetaZoneIDTable, &mzid); -} - -const UChar* -ZoneMeta::findTimeZoneID(const UnicodeString& tzid) { - return TimeZone::findID(tzid); -} - - -TimeZone* -ZoneMeta::createCustomTimeZone(int32_t offset) { - UBool negative = FALSE; - int32_t tmp = offset; - if (offset < 0) { - negative = TRUE; - tmp = -offset; - } - uint8_t hour, min, sec; - - tmp /= 1000; - sec = static_cast<uint8_t>(tmp % 60); - tmp /= 60; - min = static_cast<uint8_t>(tmp % 60); - hour = static_cast<uint8_t>(tmp / 60); - - UnicodeString zid; - formatCustomID(hour, min, sec, negative, zid); - return new SimpleTimeZone(offset, zid); -} - -UnicodeString& -ZoneMeta::formatCustomID(uint8_t hour, uint8_t min, uint8_t sec, UBool negative, UnicodeString& id) { - // Create normalized time zone ID - GMT[+|-]HH:mm[:ss] - id.setTo(gCustomTzPrefix, -1); - if (hour != 0 || min != 0) { - if (negative) { - id.append((UChar)0x2D); // '-' - } else { - id.append((UChar)0x2B); // '+' - } - // Always use US-ASCII digits - id.append((UChar)(0x30 + (hour%100)/10)); - id.append((UChar)(0x30 + (hour%10))); - id.append((UChar)0x3A); // ':' - id.append((UChar)(0x30 + (min%100)/10)); - id.append((UChar)(0x30 + (min%10))); - if (sec != 0) { - id.append((UChar)0x3A); // ':' - id.append((UChar)(0x30 + (sec%100)/10)); - id.append((UChar)(0x30 + (sec%10))); - } - } - return id; -} - -const UChar* -ZoneMeta::getShortID(const TimeZone& tz) { - const UChar* canonicalID = NULL; - if (dynamic_cast<const OlsonTimeZone *>(&tz) != NULL) { - // short cut for OlsonTimeZone - const OlsonTimeZone *otz = (const OlsonTimeZone*)&tz; - canonicalID = otz->getCanonicalID(); - } - if (canonicalID == NULL) { - return NULL; - } - return getShortIDFromCanonical(canonicalID); -} - -const UChar* -ZoneMeta::getShortID(const UnicodeString& id) { - UErrorCode status = U_ZERO_ERROR; - const UChar* canonicalID = ZoneMeta::getCanonicalCLDRID(id, status); - if (U_FAILURE(status) || canonicalID == NULL) { - return NULL; - } - return ZoneMeta::getShortIDFromCanonical(canonicalID); -} - -const UChar* -ZoneMeta::getShortIDFromCanonical(const UChar* canonicalID) { - const UChar* shortID = NULL; - int32_t len = u_strlen(canonicalID); - char tzidKey[ZID_KEY_MAX + 1]; - - u_UCharsToChars(canonicalID, tzidKey, len); - tzidKey[len] = (char) 0; // Make sure it is null terminated. - - // replace '/' with ':' - char *p = tzidKey; - while (*p++) { - if (*p == '/') { - *p = ':'; - } - } - - UErrorCode status = U_ZERO_ERROR; - UResourceBundle *rb = ures_openDirect(NULL, gKeyTypeData, &status); - ures_getByKey(rb, gTypeMapTag, rb, &status); - ures_getByKey(rb, gTimezoneTag, rb, &status); - shortID = ures_getStringByKey(rb, tzidKey, NULL, &status); - ures_close(rb); - - return shortID; -} - -U_NAMESPACE_END - -#endif /* #if !UCONFIG_NO_FORMATTING */ |