C++ StringEnumeration类代码示例

void TIMEZONE_GET_LIST(sLONG_PTR *pResult, PackagePtr pParams)
{
	ARRAY_TEXT Param1;

	Param1.setSize(1);
	
	StringEnumeration *timeZoneIds = TimeZone::createEnumeration();
	
	UErrorCode status = U_ZERO_ERROR;
	const UnicodeString *zoneId = timeZoneIds->snext(status);
	
	while (zoneId != NULL && status == U_ZERO_ERROR)
	{
		std::string zoneIdString;
		zoneId->toUTF8String(zoneIdString);
		
		Param1.appendUTF8String((const uint8_t *)zoneIdString.c_str(), (uint32_t)zoneIdString.size());
		
		zoneId = timeZoneIds->snext(status);
	}
	
	delete timeZoneIds;

	Param1.toParamAtIndex(pParams, 1);
}

void PluralRulesTest::testGetSamples() {
  // TODO: fix samples, re-enable this test.

  // no get functional equivalent API in ICU4C, so just
  // test every locale...
  UErrorCode status = U_ZERO_ERROR;
  int32_t numLocales;
  const Locale* locales = Locale::getAvailableLocales(numLocales);

  double values[1000];
  for (int32_t i = 0; U_SUCCESS(status) && i < numLocales; ++i) {
    PluralRules *rules = PluralRules::forLocale(locales[i], status);
    if (U_FAILURE(status)) {
      break;
    }
    StringEnumeration *keywords = rules->getKeywords(status);
    if (U_FAILURE(status)) {
      delete rules;
      break;
    }
    const UnicodeString* keyword;
    while (NULL != (keyword = keywords->snext(status))) {
      int32_t count = rules->getSamples(*keyword, values, LENGTHOF(values), status);
      if (U_FAILURE(status)) {
        errln(UNICODE_STRING_SIMPLE("getSamples() failed for locale ") +
              locales[i].getName() +
              UNICODE_STRING_SIMPLE(", keyword ") + *keyword);
        continue;
      }
      if (count == 0) {
        // TODO: Lots of these. 
        //   errln(UNICODE_STRING_SIMPLE("no samples for keyword ") + *keyword + UNICODE_STRING_SIMPLE(" in locale ") + locales[i].getName() );
      }
      if (count > LENGTHOF(values)) {
        errln(UNICODE_STRING_SIMPLE("getSamples()=") + count +
              UNICODE_STRING_SIMPLE(", too many values, for locale ") +
              locales[i].getName() +
              UNICODE_STRING_SIMPLE(", keyword ") + *keyword);
        count = LENGTHOF(values);
      }
      for (int32_t j = 0; j < count; ++j) {
        if (values[j] == UPLRULES_NO_UNIQUE_VALUE) {
          errln("got 'no unique value' among values");
        } else {
          UnicodeString resultKeyword = rules->select(values[j]);
          // if (strcmp(locales[i].getName(), "uk") == 0) {    // Debug only.
          //     std::cout << "  uk " << US(resultKeyword).cstr() << " " << values[j] << std::endl;
          // }
          if (*keyword != resultKeyword) {
            errln("file %s, line %d, Locale %s, sample for keyword \"%s\":  %g, select(%g) returns keyword \"%s\"",
                __FILE__, __LINE__, locales[i].getName(), US(*keyword).cstr(), values[j], values[j], US(resultKeyword).cstr());
          }
        }
      }
    }
    delete keywords;
    delete rules;
  }
}

void
TimeUnitFormat::checkConsistency(UTimeUnitFormatStyle style, const char* key, UErrorCode& err) {
    if (U_FAILURE(err)) {
        return;
    }
    // there should be patterns for each plural rule in each time unit.
    // For each time unit,
    //     for each plural rule, following is unit pattern fall-back rule:
    //         ( for example: "one" hour )
    //         look for its unit pattern in its locale tree.
    //         if pattern is not found in its own locale, such as de_DE,
    //         look for the pattern in its parent, such as de,
    //         keep looking till found or till root.
    //         if the pattern is not found in root either,
    //         fallback to plural count "other",
    //         look for the pattern of "other" in the locale tree:
    //         "de_DE" to "de" to "root".
    //         If not found, fall back to value of
    //         static variable DEFAULT_PATTERN_FOR_xxx, such as "{0} h".
    //
    // Following is consistency check to create pattern for each
    // plural rule in each time unit using above fall-back rule.
    //
    StringEnumeration* keywords = getPluralRules().getKeywords(err);
    if (U_SUCCESS(err)) {
        const UnicodeString* pluralCount;
        while ((pluralCount = keywords->snext(err)) != NULL) {
            if ( U_SUCCESS(err) ) {
                for (int32_t i = 0; i < TimeUnit::UTIMEUNIT_FIELD_COUNT; ++i) {
                    // for each time unit,
                    // get all the patterns for each plural rule in this locale.
                    Hashtable* countToPatterns = fTimeUnitToCountToPatterns[i];
                    if ( countToPatterns == NULL ) {
                        countToPatterns = initHash(err);
                        if (U_FAILURE(err)) {
                            delete countToPatterns;
                            return;
                        }
                        fTimeUnitToCountToPatterns[i] = countToPatterns;
                    }
                    MessageFormat** formatters = (MessageFormat**)countToPatterns->get(*pluralCount);
                    if( formatters == NULL || formatters[style] == NULL ) {
                        // look through parents
                        const char* localeName = getLocaleID(err);
                        CharString pluralCountChars;
                        pluralCountChars.appendInvariantChars(*pluralCount, err);
                        searchInLocaleChain(style, key, localeName,
                                            (TimeUnit::UTimeUnitFields)i,
                                            *pluralCount, pluralCountChars.data(),
                                            countToPatterns, err);
                    }
                }
            }
        }
    }
    delete keywords;
}

/**
 * Iterate through the given iterator, checking to see that all the strings
 * in the expected array are present.
 * @param expected array of strings we expect to see, or NULL
 * @param expectedCount number of elements of expected, or 0
 */
int32_t CollationServiceTest::checkStringEnumeration(const char* msg,
                                                     StringEnumeration& iter,
                                                     const char** expected,
                                                     int32_t expectedCount) {
    UErrorCode ec = U_ZERO_ERROR;
    U_ASSERT(expectedCount >= 0 && expectedCount < 31); // [sic] 31 not 32
    int32_t i = 0, idxAfterReset = 0, n = iter.count(ec);
    assertSuccess("count", ec);
    UnicodeString buf, buffAfterReset;
    int32_t seenMask = 0;
    for (;; ++i) {
        const UnicodeString* s = iter.snext(ec);
        if (!assertSuccess("snext", ec) || s == NULL)
            break;
        if (i != 0)
            buf.append(UNICODE_STRING_SIMPLE(", "));
        buf.append(*s);
        // check expected list
        for (int32_t j=0, bit=1; j<expectedCount; ++j, bit<<=1) {
            if ((seenMask&bit)==0) {
                UnicodeString exp(expected[j], (char*)NULL);
                if (*s == exp) {
                    seenMask |= bit;
                    logln((UnicodeString)"Ok: \"" + exp + "\" seen");
                }
            }
        }
    }
    // can't get pesky operator+(const US&, foo) to cooperate; use toString
#if !UCONFIG_NO_FORMATTING
    logln(UnicodeString() + msg + " = [" + buf + "] (" + toString(i) + ")");
#else
    logln(UnicodeString() + msg + " = [" + buf + "] (??? NO_FORMATTING)");
#endif
    assertTrue("count verified", i==n);
    iter.reset(ec);
    for (;; ++idxAfterReset) {
        const UChar *s = iter.unext(NULL, ec);
        if (!assertSuccess("unext", ec) || s == NULL)
            break;
        if (idxAfterReset != 0)
            buffAfterReset.append(UNICODE_STRING_SIMPLE(", "));
        buffAfterReset.append(s);
    }
    assertTrue("idxAfterReset verified", idxAfterReset==n);
    assertTrue("buffAfterReset verified", buffAfterReset==buf);
    // did we see all expected strings?
    if (((1<<expectedCount)-1) != seenMask) {
        for (int32_t j=0, bit=1; j<expectedCount; ++j, bit<<=1) {
            if ((seenMask&bit)==0) {
                errln((UnicodeString)"FAIL: \"" + expected[j] + "\" not seen");
            }
        }
    }
    return n;
}

/**
 * Set up ICU, print # of available collators
 */
void setup(UErrorCode &status) {
    u_init(&status);
  
    fprintf(stderr, "ICU %s init: %s\n", U_ICU_VERSION, u_errorName(status));

    int32_t count;
    StringEnumeration *se = Collator::getAvailableLocales();
    count = se->count(status);
    fprintf(stderr, "# Collators now available: %d,\t%s - %d providers expected.\n", count, u_errorName(status), (int32_t)PROVIDER_COUNT);
}

/*
 * This method updates the cache and must be called with a lock,
 * except initializer.
 */
void
TimeZoneNamesImpl::loadStrings(const UnicodeString& tzCanonicalID) {
    loadTimeZoneNames(tzCanonicalID);

    UErrorCode status = U_ZERO_ERROR;
    StringEnumeration *mzIDs = getAvailableMetaZoneIDs(tzCanonicalID, status);
    if (U_SUCCESS(status) && mzIDs != NULL) {
        const UnicodeString *mzID;
        while ((mzID = mzIDs->snext(status))) {
            if (U_FAILURE(status)) {
                break;
            }
            loadMetaZoneNames(*mzID);
        }
        delete mzIDs;
    }
}

void
CurrencyAffixInfo::set(
        const char *locale,
        const PluralRules *rules,
        const UChar *currency,
        UErrorCode &status) {
    if (U_FAILURE(status)) {
        return;
    }
    fIsDefault = FALSE;
    if (currency == NULL) {
        fSymbol.setTo(gDefaultSymbols, 1);
        fISO.setTo(gDefaultSymbols, 2);
        fLong.remove();
        fLong.append(gDefaultSymbols, 3);
        fIsDefault = TRUE;
        return;
    }
    int32_t len;
    UBool unusedIsChoice;
    const UChar *symbol = ucurr_getName(
            currency, locale, UCURR_SYMBOL_NAME, &unusedIsChoice,
            &len, &status);
    if (U_FAILURE(status)) {
        return;
    }
    fSymbol.setTo(symbol, len);
    fISO.setTo(currency, u_strlen(currency));
    fLong.remove();
    StringEnumeration* keywords = rules->getKeywords(status);
    if (U_FAILURE(status)) {
        return;
    }
    const UnicodeString* pluralCount;
    while ((pluralCount = keywords->snext(status)) != NULL) {
        CharString pCount;
        pCount.appendInvariantChars(*pluralCount, status);
        const UChar *pluralName = ucurr_getPluralName(
            currency, locale, &unusedIsChoice, pCount.data(),
            &len, &status);
        fLong.setVariant(pCount.data(), UnicodeString(pluralName, len), status);
    }
    delete keywords;
}

void
TimeUnitFormat::setup(UErrorCode& err) {
    initDataMembers(err);

    UVector pluralCounts(0, uhash_compareUnicodeString, 6, err);
    StringEnumeration* keywords = getPluralRules().getKeywords(err);
    if (U_FAILURE(err)) {
        return;
    }
    UnicodeString* pluralCount;
    while ((pluralCount = const_cast<UnicodeString*>(keywords->snext(err))) != NULL) {
      pluralCounts.addElement(pluralCount, err);
    }
    readFromCurrentLocale(UTMUTFMT_FULL_STYLE, gUnitsTag, pluralCounts, err);
    checkConsistency(UTMUTFMT_FULL_STYLE, gUnitsTag, err);
    readFromCurrentLocale(UTMUTFMT_ABBREVIATED_STYLE, gShortUnitsTag, pluralCounts, err);
    checkConsistency(UTMUTFMT_ABBREVIATED_STYLE, gShortUnitsTag, err);
    delete keywords;
}

/**
 * Returns a pointer to a Region using the given numeric region code. If the numeric region code is not recognized,
 * the appropriate error code will be set ( U_ILLEGAL_ARGUMENT_ERROR ).
 */
const Region* U_EXPORT2
Region::getInstance (int32_t code, UErrorCode &status) {

    umtx_initOnce(gRegionDataInitOnce, &loadRegionData, status);
    if (U_FAILURE(status)) {
        return NULL;
    }

    Region *r = (Region *)uhash_iget(numericCodeMap,code);

    if ( !r ) { // Just in case there's an alias that's numeric, try to find it.
        UnicodeString pat = UNICODE_STRING_SIMPLE("0");
        LocalPointer<DecimalFormat> df(new DecimalFormat(pat,status), status);
        if( U_FAILURE(status) ) {
            return NULL;
        }
        UnicodeString id;
        id.remove();
        FieldPosition posIter;
        df->format(code,id, posIter, status);
        r = (Region *)uhash_get(regionAliases,&id);
    }

    if( U_FAILURE(status) ) {
        return NULL;
    }

    if ( !r ) {
        status = U_ILLEGAL_ARGUMENT_ERROR;
        return NULL;
    }

    if ( r->type == URGN_DEPRECATED && r->preferredValues->size() == 1) {
        StringEnumeration *pv = r->getPreferredValues(status);
        pv->reset(status);
        const UnicodeString *ustr = pv->snext(status);
        r = (Region *)uhash_get(regionIDMap,(void *)ustr);
        delete pv;
    }

    return r;
}

/*
 * This method updates the cache and must be called with a lock,
 * except initializer.
 */
void
TZGNCore::loadStrings(const UnicodeString& tzCanonicalID) {
    // load the generic location name
    getGenericLocationName(tzCanonicalID);

    // partial location names
    UErrorCode status = U_ZERO_ERROR;

    const UnicodeString *mzID;
    UnicodeString goldenID;
    UnicodeString mzGenName;
    UTimeZoneNameType genNonLocTypes[] = {
        UTZNM_LONG_GENERIC, UTZNM_SHORT_GENERIC,
        UTZNM_UNKNOWN /*terminator*/
    };

    StringEnumeration *mzIDs = fTimeZoneNames->getAvailableMetaZoneIDs(tzCanonicalID, status);
    while ((mzID = mzIDs->snext(status))) {
        if (U_FAILURE(status)) {
            break;
        }
        // if this time zone is not the golden zone of the meta zone,
        // partial location name (such as "PT (Los Angeles)") might be
        // available.
        fTimeZoneNames->getReferenceZoneID(*mzID, fTargetRegion, goldenID);
        if (tzCanonicalID != goldenID) {
            for (int32_t i = 0; genNonLocTypes[i] != UTZNM_UNKNOWN; i++) {
                fTimeZoneNames->getMetaZoneDisplayName(*mzID, genNonLocTypes[i], mzGenName);
                if (!mzGenName.isEmpty()) {
                    // getPartialLocationName formats a name and put it into the trie
                    getPartialLocationName(tzCanonicalID, *mzID,
                        (genNonLocTypes[i] == UTZNM_LONG_GENERIC), mzGenName);
                }
            }
        }
    }
    if (mzIDs != NULL) {
        delete mzIDs;
    }
}

/**
 * @bug 4151406
 * TimeZone::getAvailableIDs(int32_t) throws exception for certain values,
 * due to a faulty constant in TimeZone::java.
 */
void TimeZoneRegressionTest:: Test4151406() {
    int32_t max = 0;
    for (int32_t h=-28; h<=30; ++h) {
        // h is in half-hours from GMT; rawoffset is in millis
        int32_t rawoffset = h * 1800000;
        int32_t hh = (h<0) ? -h : h;
        UnicodeString hname = UnicodeString((h<0) ? "GMT-" : "GMT+") +
            ((hh/2 < 10) ? "0" : "") +
            (hh/2) + ':' +
            ((hh%2==0) ? "00" : "30");
        //try {
            UErrorCode ec = U_ZERO_ERROR;
            int32_t count;
            StringEnumeration* ids = TimeZone::createEnumeration(rawoffset);
            if (ids == NULL) {
                dataerrln("Fail: TimeZone::createEnumeration(rawoffset)");
                continue;
            }
            count = ids->count(ec);
            if (count> max) 
                max = count;
            if (count > 0) {
                logln(hname + ' ' + (UnicodeString)count + (UnicodeString)" e.g. " + *ids->snext(ec));
            } else {
                logln(hname + ' ' + count);
            }
            // weiv 11/27/2002: why uprv_free? This should be a delete
            delete ids;
            //delete [] ids;
            //uprv_free(ids);
        /*} catch (Exception e) {
            errln(hname + ' ' + "Fail: " + e);
        }*/
    }
    logln("Maximum zones per offset = %d", max);
}

void CollationServiceTest::TestRegister()
{
#if !UCONFIG_NO_SERVICE
    // register a singleton
    const Locale& FR = Locale::getFrance();
    const Locale& US = Locale::getUS();
    const Locale US_FOO("en", "US", "FOO");

    UErrorCode status = U_ZERO_ERROR;

    Collator* frcol = Collator::createInstance(FR, status);
    Collator* uscol = Collator::createInstance(US, status);
    if(U_FAILURE(status)) {
        errcheckln(status, "Failed to create collators with %s", u_errorName(status));
        delete frcol;
        delete uscol;
        return;
    }

    { // try override en_US collator
        URegistryKey key = Collator::registerInstance(frcol, US, status);

        Collator* ncol = Collator::createInstance(US_FOO, status);
        if (*frcol != *ncol) {
            errln("register of french collator for en_US failed on request for en_US_FOO");
        }
        // ensure original collator's params not touched
        Locale loc = frcol->getLocale(ULOC_REQUESTED_LOCALE, status);
        if (loc != FR) {
          errln(UnicodeString("fr collator's requested locale changed to ") + loc.getName());
        }
        loc = frcol->getLocale(ULOC_VALID_LOCALE, status);
        if (loc != FR) {
          errln(UnicodeString("fr collator's valid locale changed to ") + loc.getName());
        }

        loc = ncol->getLocale(ULOC_REQUESTED_LOCALE, status);
        if (loc != US_FOO) {
            errln(UnicodeString("requested locale for en_US_FOO is not en_US_FOO but ") + loc.getName());
        }
        loc = ncol->getLocale(ULOC_VALID_LOCALE, status);
        if (loc != US) {
            errln(UnicodeString("valid locale for en_US_FOO is not en_US but ") + loc.getName());
        }
        loc = ncol->getLocale(ULOC_ACTUAL_LOCALE, status);
        if (loc != US) {
            errln(UnicodeString("actual locale for en_US_FOO is not en_US but ") + loc.getName());
        }
        delete ncol; ncol = NULL;

        if (!Collator::unregister(key, status)) {
            errln("failed to unregister french collator");
        }
        // !!! frcol pointer is now invalid !!!

        ncol = Collator::createInstance(US, status);
        if (*uscol != *ncol) {
            errln("collator after unregister does not match original");
        }
        delete ncol; ncol = NULL;
    }

    // recreate frcol
    frcol = Collator::createInstance(FR, status);

    LocalUCollatorPointer frFR(ucol_open("fr_FR", &status));

    { // try create collator for new locale
        Locale fu_FU_FOO("fu", "FU", "FOO");
        Locale fu_FU("fu", "FU", "");

        Collator* fucol = Collator::createInstance(fu_FU, status);
        URegistryKey key = Collator::registerInstance(frcol, fu_FU, status);
        Collator* ncol = Collator::createInstance(fu_FU_FOO, status);
        if (*frcol != *ncol) {
            errln("register of fr collator for fu_FU failed");
        }

        UnicodeString locName = fu_FU.getName();
        StringEnumeration* localeEnum = Collator::getAvailableLocales();
        UBool found = FALSE;
        const UnicodeString* locStr, *ls2;
        for (locStr = localeEnum->snext(status);
        !found && locStr != NULL;
        locStr = localeEnum->snext(status)) {
            //
            if (locName == *locStr) {
                found = TRUE;
            }
        }

        StringEnumeration *le2 = NULL;
        localeEnum->reset(status);
        int32_t i, count;
        count = localeEnum->count(status);
        for(i = 0; i < count; ++i) {
            if(i == count / 2) {
                le2 = localeEnum->clone();
                if(le2 == NULL || count != le2->count(status)) {
                    errln("ServiceEnumeration.clone() failed");
//.........这里部分代码省略.........

void CollationServiceTest::TestRegisterFactory(void)
{
#if !UCONFIG_NO_SERVICE
    int32_t n1, n2, n3;
    Locale fu_FU("fu", "FU", "");
    Locale fu_FU_FOO("fu", "FU", "FOO");

    UErrorCode status = U_ZERO_ERROR;

    Hashtable* fuFUNames = new Hashtable(FALSE, status);
    if (!fuFUNames) {
        errln("memory allocation error");
        return;
    }
    fuFUNames->setValueDeleter(uhash_deleteUnicodeString);

    fuFUNames->put(fu_FU.getName(), new UnicodeString("ze leetle bunny Fu-Fu"), status);
    fuFUNames->put(fu_FU_FOO.getName(), new UnicodeString("zee leetel bunny Foo-Foo"), status);
    fuFUNames->put(Locale::getDefault().getName(), new UnicodeString("little bunny Foo Foo"), status);

    Collator* frcol = Collator::createInstance(Locale::getFrance(), status);
    Collator* gecol = Collator::createInstance(Locale::getGermany(), status);
    Collator* jpcol = Collator::createInstance(Locale::getJapan(), status);
    if(U_FAILURE(status)) {
      errcheckln(status, "Failed to create collators with %s", u_errorName(status));
      delete frcol;
      delete gecol;
      delete jpcol;
      delete fuFUNames;
      return;
    }

    CollatorInfo** info = new CollatorInfo*[4];
    if (!info) {
        errln("memory allocation error");
        return;
    }

    info[0] = new CollatorInfo(Locale::getUS(), frcol, NULL);
    info[1] = new CollatorInfo(Locale::getFrance(), gecol, NULL);
    info[2] = new CollatorInfo(fu_FU, jpcol, fuFUNames);
    info[3] = NULL;

    TestFactory* factory = new TestFactory(info);
    if (!factory) {
        errln("memory allocation error");
        return;
    }

    Collator* uscol = Collator::createInstance(Locale::getUS(), status);
    Collator* fucol = Collator::createInstance(fu_FU, status);

    {
        n1 = checkAvailable("before registerFactory");

        URegistryKey key = Collator::registerFactory(factory, status);

        n2 = checkAvailable("after registerFactory");
        assertTrue("count after > count before", n2 > n1);

        Collator* ncol = Collator::createInstance(Locale::getUS(), status);
        if (*frcol != *ncol) {
            errln("frcoll for en_US failed");
        }
        delete ncol; ncol = NULL;

        ncol = Collator::createInstance(fu_FU_FOO, status);
        if (*jpcol != *ncol) {
            errln("jpcol for fu_FU_FOO failed");
        }

        Locale loc = ncol->getLocale(ULOC_REQUESTED_LOCALE, status);
        if (loc != fu_FU_FOO) {
            errln(UnicodeString("requested locale for fu_FU_FOO is not fu_FU_FOO but ") + loc.getName());
        }
        loc = ncol->getLocale(ULOC_VALID_LOCALE, status);
        if (loc != fu_FU) {
            errln(UnicodeString("valid locale for fu_FU_FOO is not fu_FU but ") + loc.getName());
        }
        delete ncol; ncol = NULL;

        UnicodeString locName = fu_FU.getName();
        StringEnumeration* localeEnum = Collator::getAvailableLocales();
        UBool found = FALSE;
        const UnicodeString* locStr;
        for (locStr = localeEnum->snext(status);
            !found && locStr != NULL;
            locStr = localeEnum->snext(status))
        {
            if (locName == *locStr) {
                found = TRUE;
            }
        }
        delete localeEnum;

        if (!found) {
            errln("new locale fu_FU not reported as supported locale");
        }

        UnicodeString name;
//.........这里部分代码省略.........

void
CurrencyPluralInfo::setupCurrencyPluralPattern(const Locale& loc, UErrorCode& status) {
    if (U_FAILURE(status)) {
        return;
    }

    if (fPluralCountToCurrencyUnitPattern) {
        deleteHash(fPluralCountToCurrencyUnitPattern);
    }
    fPluralCountToCurrencyUnitPattern = initHash(status);
    if (U_FAILURE(status)) {
        return;
    }

    NumberingSystem *ns = NumberingSystem::createInstance(loc,status);
    UErrorCode ec = U_ZERO_ERROR;
    UResourceBundle *rb = ures_open(NULL, loc.getName(), &ec);
    UResourceBundle *numElements = ures_getByKeyWithFallback(rb, gNumberElementsTag, NULL, &ec);
    rb = ures_getByKeyWithFallback(numElements, ns->getName(), rb, &ec);
    rb = ures_getByKeyWithFallback(rb, gPatternsTag, rb, &ec);
    int32_t ptnLen;
    const UChar* numberStylePattern = ures_getStringByKeyWithFallback(rb, gDecimalFormatTag, &ptnLen, &ec);
    // Fall back to "latn" if num sys specific pattern isn't there.
    if ( ec == U_MISSING_RESOURCE_ERROR && uprv_strcmp(ns->getName(),gLatnTag)) {
        ec = U_ZERO_ERROR;
        rb = ures_getByKeyWithFallback(numElements, gLatnTag, rb, &ec);
        rb = ures_getByKeyWithFallback(rb, gPatternsTag, rb, &ec);
        numberStylePattern = ures_getStringByKeyWithFallback(rb, gDecimalFormatTag, &ptnLen, &ec);
    }
    int32_t numberStylePatternLen = ptnLen;
    const UChar* negNumberStylePattern = NULL;
    int32_t negNumberStylePatternLen = 0;
    // TODO: Java
    // parse to check whether there is ";" separator in the numberStylePattern
    UBool hasSeparator = false;
    if (U_SUCCESS(ec)) {
        for (int32_t styleCharIndex = 0; styleCharIndex < ptnLen; ++styleCharIndex) {
            if (numberStylePattern[styleCharIndex] == gNumberPatternSeparator) {
                hasSeparator = true;
                // split the number style pattern into positive and negative
                negNumberStylePattern = numberStylePattern + styleCharIndex + 1;
                negNumberStylePatternLen = ptnLen - styleCharIndex - 1;
                numberStylePatternLen = styleCharIndex;
            }
        }
    }

    ures_close(numElements);
    ures_close(rb);
    delete ns;

    if (U_FAILURE(ec)) {
        return;
    }

    UResourceBundle *currRb = ures_open(U_ICUDATA_CURR, loc.getName(), &ec);
    UResourceBundle *currencyRes = ures_getByKeyWithFallback(currRb, gCurrUnitPtnTag, NULL, &ec);
    
#ifdef CURRENCY_PLURAL_INFO_DEBUG
    std::cout << "in set up\n";
#endif
    StringEnumeration* keywords = fPluralRules->getKeywords(ec);
    if (U_SUCCESS(ec)) {
        const char* pluralCount;
        while ((pluralCount = keywords->next(NULL, ec)) != NULL) {
            if ( U_SUCCESS(ec) ) {
                int32_t ptnLen;
                UErrorCode err = U_ZERO_ERROR;
                const UChar* patternChars = ures_getStringByKeyWithFallback(
                    currencyRes, pluralCount, &ptnLen, &err);
                if (U_SUCCESS(err) && ptnLen > 0) {
                    UnicodeString* pattern = new UnicodeString(patternChars, ptnLen);
#ifdef CURRENCY_PLURAL_INFO_DEBUG
                    char result_1[1000];
                    pattern->extract(0, pattern->length(), result_1, "UTF-8");
                    std::cout << "pluralCount: " << pluralCount << "; pattern: " << result_1 << "\n";
#endif
                    pattern->findAndReplace(UnicodeString(TRUE, gPart0, 3), 
                      UnicodeString(numberStylePattern, numberStylePatternLen));
                    pattern->findAndReplace(UnicodeString(TRUE, gPart1, 3), UnicodeString(TRUE, gTripleCurrencySign, 3));

                    if (hasSeparator) {
                        UnicodeString negPattern(patternChars, ptnLen);
                        negPattern.findAndReplace(UnicodeString(TRUE, gPart0, 3), 
                          UnicodeString(negNumberStylePattern, negNumberStylePatternLen));
                        negPattern.findAndReplace(UnicodeString(TRUE, gPart1, 3), UnicodeString(TRUE, gTripleCurrencySign, 3));
                        pattern->append(gNumberPatternSeparator);
                        pattern->append(negPattern);
                    }
#ifdef CURRENCY_PLURAL_INFO_DEBUG
                    pattern->extract(0, pattern->length(), result_1, "UTF-8");
                    std::cout << "pluralCount: " << pluralCount << "; pattern: " << result_1 << "\n";
#endif

                    fPluralCountToCurrencyUnitPattern->put(UnicodeString(pluralCount, -1, US_INV), pattern, status);
                }
            }
        }
    }
    delete keywords;
//.........这里部分代码省略.........

UnicodeString& U_EXPORT2
ZoneMeta::getSingleCountry(const UnicodeString &tzid, UnicodeString &country) {
    // Get canonical country for the zone
    const UChar *region = TimeZone::getRegion(tzid);
    if (u_strcmp(gWorld, region) == 0) {
        // special case - "001"
        country.remove();
        return country;
    }

    // Checking the cached results
    UErrorCode status = U_ZERO_ERROR;
    UBool initialized;
    UMTX_CHECK(&gZoneMetaLock, gCountryInfoVectorsInitialized, initialized);
    if (!initialized) {
        // Create empty vectors
        umtx_lock(&gZoneMetaLock);
        {
            if (!gCountryInfoVectorsInitialized) {
                // 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_SUCCESS(status)) {
                    gCountryInfoVectorsInitialized = TRUE;
                } else {
                    delete gSingleZoneCountries;
                    delete gMultiZonesCountries;
                }
            }
        }
        umtx_unlock(&gZoneMetaLock);

        if (U_FAILURE(status)) {
            country.remove();
            return country;
        }
    }

    // Check if it was already cached
    UBool cached = FALSE;
    UBool multiZones = FALSE;
    umtx_lock(&gZoneMetaLock);
    {
        multiZones = cached = gMultiZonesCountries->contains((void*)region);
        if (!multiZones) {
            cached = gSingleZoneCountries->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);

        char buf[] = {0, 0, 0};
        u_UCharsToChars(region, buf, 2);

        StringEnumeration *ids = TimeZone::createEnumeration(buf);
        int32_t idsLen = ids->count(status);
        if (U_SUCCESS(status) && idsLen > 1) {
            // multiple zones are available for the region
            UnicodeString canonical, tmp;
            const UnicodeString *id = ids->snext(status);
            getCanonicalSystemID(*id, canonical, status);
            if (U_SUCCESS(status)) {
                // check if there are any other canonical zone in the group
                while ((id = ids->snext(status))!=NULL) {
                    getCanonicalSystemID(*id, tmp, status);
                    if (U_FAILURE(status)) {
                        break;
                    }
                    if (canonical != tmp) {
                        // another canonical zone was found
                        multiZones = TRUE;
                        break;
                    }
                }
            }
        }
        if (U_FAILURE(status)) {
            // no single country by default for any error cases
            multiZones = TRUE;
        }
        delete ids;

        // Cache the result
        umtx_lock(&gZoneMetaLock);
        {
            UErrorCode ec = U_ZERO_ERROR;
            if (multiZones) {
                if (!gMultiZonesCountries->contains((void*)region)) {
//.........这里部分代码省略.........