C++ NumberFormat::setLocaleIDs方法代码示例

//.........这里部分代码省略.........
        hashKey = desiredLocale.hashCode();

        umtx_lock(&nscacheMutex);
        ns = (NumberingSystem *)uhash_iget(cache, hashKey);
        if (ns == NULL) {
            ns = NumberingSystem::createInstance(desiredLocale,status);
            uhash_iput(cache, hashKey, (void*)ns, &status);
        }
        umtx_unlock(&nscacheMutex);
    }
    else {
        ns = NumberingSystem::createInstance(desiredLocale,status);
        deleteNS = TRUE;
    }

    // check results of getting a numbering system
    if ((ns == NULL) || (U_FAILURE(status))) {
        goto cleanup;
    }

    if (ns->isAlgorithmic()) {
        UnicodeString nsDesc;
        UnicodeString nsRuleSetGroup;
        UnicodeString nsRuleSetName;
        Locale nsLoc;
        URBNFRuleSetTag desiredRulesType = URBNF_NUMBERING_SYSTEM;

        nsDesc.setTo(ns->getDescription());
        int32_t firstSlash = nsDesc.indexOf(gSlash);
        int32_t lastSlash = nsDesc.lastIndexOf(gSlash);
        if ( lastSlash > firstSlash ) {
            char nsLocID[ULOC_FULLNAME_CAPACITY];

            nsDesc.extract(0,firstSlash,nsLocID,ULOC_FULLNAME_CAPACITY,US_INV);
            nsRuleSetGroup.setTo(nsDesc,firstSlash+1,lastSlash-firstSlash-1);
            nsRuleSetName.setTo(nsDesc,lastSlash+1);

            nsLoc = Locale::createFromName(nsLocID);

            UnicodeString SpelloutRules = UNICODE_STRING_SIMPLE("SpelloutRules");
            if ( nsRuleSetGroup.compare(SpelloutRules) == 0 ) {
                desiredRulesType = URBNF_SPELLOUT;
            }
        } else {
            nsLoc = desiredLocale;
            nsRuleSetName.setTo(nsDesc);
        }

        RuleBasedNumberFormat *r = new RuleBasedNumberFormat(desiredRulesType,nsLoc,status);

        if (U_FAILURE(status) || r == NULL) {
            goto cleanup;
        }
        r->setDefaultRuleSet(nsRuleSetName,status);
        f = (NumberFormat *) r;

    } else {
        // replace single currency sign in the pattern with double currency sign
        // if the style is kIsoCurrencyStyle
        if (style == kIsoCurrencyStyle) {
            pattern.findAndReplace(gSingleCurrencySign, gDoubleCurrencySign);
        }

        f = new DecimalFormat(pattern, symbolsToAdopt, style, status);
        if (U_FAILURE(status) || f == NULL) {
            goto cleanup;
        }
        deleteSymbols = FALSE;
    }

    f->setLocaleIDs(ures_getLocaleByType(numberPatterns, ULOC_VALID_LOCALE, &status),
                    ures_getLocaleByType(numberPatterns, ULOC_ACTUAL_LOCALE, &status));

cleanup:
    ures_close(numberPatterns);
    ures_close(resource);

    if (deleteNS && ns) {
        delete ns;
    }

    if (U_FAILURE(status)) {
        /* If f exists, then it will delete the symbols */
        if (f==NULL) {
            delete symbolsToAdopt;
        }
        else {
            delete f;
        }
        return NULL;
    }
    if (f == NULL || symbolsToAdopt == NULL) {
        status = U_MEMORY_ALLOCATION_ERROR;
        f = NULL;
    }
    if (deleteSymbols && symbolsToAdopt != NULL) {
        delete symbolsToAdopt;
    }
    return f;
}

//.........这里部分代码省略.........
        if (symbolsToAdopt.isNull()) {
            status = U_MEMORY_ALLOCATION_ERROR;
            return NULL;
        }

        UResourceBundle *resource = ownedResource.orphan();
        UResourceBundle *numElements = ures_getByKeyWithFallback(resource, gNumberElements, NULL, &status);
        resource = ures_getByKeyWithFallback(numElements, ns->getName(), resource, &status);
        resource = ures_getByKeyWithFallback(resource, gPatterns, resource, &status);
        ownedResource.adoptInstead(resource);

        int32_t patLen = 0;
        const UChar *patResStr = ures_getStringByKeyWithFallback(resource, gFormatKeys[style], &patLen, &status);

        // Didn't find a pattern specific to the numbering system, so fall back to "latn"
        if ( status == U_MISSING_RESOURCE_ERROR && uprv_strcmp(gLatn,ns->getName())) {
            status = U_ZERO_ERROR;
            resource = ures_getByKeyWithFallback(numElements, gLatn, resource, &status);
            resource = ures_getByKeyWithFallback(resource, gPatterns, resource, &status);
            patResStr = ures_getStringByKeyWithFallback(resource, gFormatKeys[style], &patLen, &status);
        }

        ures_close(numElements);

        // Creates the specified decimal format style of the desired locale.
        pattern.setTo(TRUE, patResStr, patLen);
    }
    if (U_FAILURE(status)) {
        return NULL;
    }
    if(style==UNUM_CURRENCY || style == UNUM_CURRENCY_ISO){
        const UChar* currPattern = symbolsToAdopt->getCurrencyPattern();
        if(currPattern!=NULL){
            pattern.setTo(currPattern, u_strlen(currPattern));
        }
    }


    NumberFormat *f;
    if (ns->isAlgorithmic()) {
        UnicodeString nsDesc;
        UnicodeString nsRuleSetGroup;
        UnicodeString nsRuleSetName;
        Locale nsLoc;
        URBNFRuleSetTag desiredRulesType = URBNF_NUMBERING_SYSTEM;

        nsDesc.setTo(ns->getDescription());
        int32_t firstSlash = nsDesc.indexOf(gSlash);
        int32_t lastSlash = nsDesc.lastIndexOf(gSlash);
        if ( lastSlash > firstSlash ) {
            CharString nsLocID;

            nsLocID.appendInvariantChars(nsDesc.tempSubString(0, firstSlash), status);
            nsRuleSetGroup.setTo(nsDesc,firstSlash+1,lastSlash-firstSlash-1);
            nsRuleSetName.setTo(nsDesc,lastSlash+1);

            nsLoc = Locale::createFromName(nsLocID.data());

            UnicodeString SpelloutRules = UNICODE_STRING_SIMPLE("SpelloutRules");
            if ( nsRuleSetGroup.compare(SpelloutRules) == 0 ) {
                desiredRulesType = URBNF_SPELLOUT;
            }
        } else {
            nsLoc = desiredLocale;
            nsRuleSetName.setTo(nsDesc);
        }

        RuleBasedNumberFormat *r = new RuleBasedNumberFormat(desiredRulesType,nsLoc,status);
        if (r == NULL) {
            status = U_MEMORY_ALLOCATION_ERROR;
            return NULL;
        }
        r->setDefaultRuleSet(nsRuleSetName,status);
        f = r;
    } else {
        // replace single currency sign in the pattern with double currency sign
        // if the style is UNUM_CURRENCY_ISO
        if (style == UNUM_CURRENCY_ISO) {
            pattern.findAndReplace(UnicodeString(TRUE, gSingleCurrencySign, 1),
                                   UnicodeString(TRUE, gDoubleCurrencySign, 2));
        }

        // "new DecimalFormat()" does not adopt the symbols if its memory allocation fails.
        DecimalFormatSymbols *syms = symbolsToAdopt.orphan();
        f = new DecimalFormat(pattern, syms, style, status);
        if (f == NULL) {
            delete syms;
            status = U_MEMORY_ALLOCATION_ERROR;
            return NULL;
        }
    }

    f->setLocaleIDs(ures_getLocaleByType(ownedResource.getAlias(), ULOC_VALID_LOCALE, &status),
                    ures_getLocaleByType(ownedResource.getAlias(), ULOC_ACTUAL_LOCALE, &status));
    if (U_FAILURE(status)) {
        delete f;
        return NULL;
    }
    return f;
}