C++ UnicodeString::setToBogus方法代码示例

/* {{{ intl_stringFromChar */
int intl_stringFromChar(UnicodeString &ret, char *str, size_t str_len, UErrorCode *status)
{
	if(str_len > INT32_MAX) {
		*status = U_BUFFER_OVERFLOW_ERROR;
		ret.setToBogus();
		return FAILURE;
	}
	//the number of UTF-16 code units is not larger than that of UTF-8 code
	//units, + 1 for the terminator
	int32_t capacity = (int32_t)str_len + 1;

	//no check necessary -- if NULL will fail ahead
	UChar	*utf16 = ret.getBuffer(capacity);
	int32_t utf16_len = 0;
	*status = U_ZERO_ERROR;
	u_strFromUTF8WithSub(utf16, ret.getCapacity(), &utf16_len,
		str, str_len, U_SENTINEL /* no substitution */, NULL,
		status);
	ret.releaseBuffer(utf16_len);
	if (U_FAILURE(*status)) {
		ret.setToBogus();
		return FAILURE;
	}
	return SUCCESS;
}

UnicodeString
RuleBasedNumberFormat::getRuleSetDisplayName(int32_t index, const Locale& localeParam) {
    if (localizations && index >= 0 && index < localizations->getNumberOfRuleSets()) {
        UnicodeString localeName(localeParam.getBaseName(), -1, UnicodeString::kInvariant);
        int32_t len = localeName.length();
        UChar* localeStr = localeName.getBuffer(len + 1);
        while (len >= 0) {
            localeStr[len] = 0;
            int32_t ix = localizations->indexForLocale(localeStr);
            if (ix >= 0) {
                UnicodeString name(TRUE, localizations->getDisplayName(ix, index), -1);
                return name;
            }

            // trim trailing portion, skipping over ommitted sections
            do { --len;} while (len > 0 && localeStr[len] != 0x005f); // underscore
            while (len > 0 && localeStr[len-1] == 0x005F) --len;
        }
        UnicodeString name(TRUE, localizations->getRuleSetName(index), -1);
        return name;
    }
    UnicodeString bogus;
    bogus.setToBogus();
    return bogus;
}

void U_EXPORT2
Normalizer::normalize(const UnicodeString& source, 
                      UNormalizationMode mode, int32_t options,
                      UnicodeString& result, 
                      UErrorCode &status) {
    if(source.isBogus() || U_FAILURE(status)) {
        result.setToBogus();
        if(U_SUCCESS(status)) {
            status=U_ILLEGAL_ARGUMENT_ERROR;
        }
    } else {
        UnicodeString localDest;
        UnicodeString *dest;

        if(&source!=&result) {
            dest=&result;
        } else {
            // the source and result strings are the same object, use a temporary one
            dest=&localDest;
        }
        const Normalizer2 *n2=Normalizer2Factory::getInstance(mode, status);
        if(U_SUCCESS(status)) {
            if(options&UNORM_UNICODE_3_2) {
                FilteredNormalizer2(*n2, *uniset_getUnicode32Instance(status)).
                    normalize(source, *dest, status);
            } else {
                n2->normalize(source, *dest, status);
            }
        }
        if(dest==&localDest && U_SUCCESS(status)) {
            result=*dest;
        }
    }
}

UnicodeString& U_EXPORT2
ZoneMeta::getZoneIdByMetazone(const UnicodeString &mzid, const UnicodeString &region, 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;
}

UnicodeString& U_EXPORT2
TimeZoneNamesImpl::getDefaultExemplarLocationName(const UnicodeString& tzID, UnicodeString& name) {
    if (tzID.isEmpty() || tzID.startsWith(gEtcPrefix, gEtcPrefixLen)
        || tzID.startsWith(gSystemVPrefix, gSystemVPrefixLen) || tzID.indexOf(gRiyadh8, gRiyadh8Len, 0) > 0) {
        name.setToBogus();
        return name;
    }

    int32_t sep = tzID.lastIndexOf((UChar)0x2F /* '/' */);
    if (sep > 0 && sep + 1 < tzID.length()) {
        name.setTo(tzID, sep + 1);
        name.findAndReplace(UnicodeString((UChar)0x5f /* _ */),
                            UnicodeString((UChar)0x20 /* space */));
    } else {
        name.setToBogus();
    }
    return name;
}

UnicodeString& U_EXPORT2
ZoneMeta::getCanonicalCountry(const UnicodeString &tzid, UnicodeString &canonicalCountry) {
    const UChar *region = TimeZone::getRegion(tzid);
    if (region != NULL && u_strcmp(gWorld, region) != 0) {
        canonicalCountry.setTo(region, -1);
    } else {
        canonicalCountry.setToBogus();
    }
    return canonicalCountry;
}

UnicodeString
RuleBasedNumberFormat::getDefaultRuleSetName() const {
  UnicodeString result;
  if (defaultRuleSet && defaultRuleSet->isPublic()) {
    defaultRuleSet->getName(result);
  } else {
    result.setToBogus();
  }
  return result;
}

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;
}

UnicodeString
RuleBasedNumberFormat::getRuleSetDisplayName(const UnicodeString& ruleSetName, const Locale& localeParam) {
    if (localizations) {
        UnicodeString rsn(ruleSetName);
        int32_t ix = localizations->indexForRuleSet(rsn.getTerminatedBuffer());
        return getRuleSetDisplayName(ix, localeParam);
    }
    UnicodeString bogus;
    bogus.setToBogus();
    return bogus;
}

UnicodeString & U_EXPORT2
Normalizer::concatenate(UnicodeString & left, UnicodeString & right,
                        UnicodeString & result,
                        UNormalizationMode mode, int32_t options,
                        UErrorCode & errorCode)
{
	if (left.isBogus() || right.isBogus() || U_FAILURE(errorCode))
	{
		result.setToBogus();
		if (U_SUCCESS(errorCode))
		{
			errorCode = U_ILLEGAL_ARGUMENT_ERROR;
		}
	}
	else
	{
		UnicodeString localDest;
		UnicodeString * dest;

		if (&right != &result)
		{
			dest = &result;
		}
		else
		{
			// the right and result strings are the same object, use a temporary one
			dest = &localDest;
		}
		*dest = left;
		const Normalizer2 * n2 = Normalizer2Factory::getInstance(mode, errorCode);
		if (U_SUCCESS(errorCode))
		{
			if (options & UNORM_UNICODE_3_2)
			{
				FilteredNormalizer2(*n2, *uniset_getUnicode32Instance(errorCode)).
				append(*dest, right, errorCode);
			}
			else
			{
				n2->append(*dest, right, errorCode);
			}
		}
		if (dest == &localDest && U_SUCCESS(errorCode))
		{
			result = *dest;
		}
	}
	return result;
}

UnicodeString MeasureFormat::getUnitDisplayName(const MeasureUnit& unit, UErrorCode& /*status*/) const {
    UMeasureFormatWidth width = getRegularWidth(fWidth);
    const UChar* const* styleToDnam = cache->dnams[unit.getIndex()];
    const UChar* dnam = styleToDnam[width];
    if (dnam == NULL) {
        int32_t fallbackWidth = cache->widthFallback[width];
        dnam = styleToDnam[fallbackWidth];
    }

    UnicodeString result;
    if (dnam == NULL) {
        result.setToBogus();
    } else {
        result.setTo(dnam, -1);
    }
    return result;
}

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;
}

UnicodeString 
MessageFormat::autoQuoteApostrophe(const UnicodeString& pattern, UErrorCode& status) {
  UnicodeString result;
  if (U_SUCCESS(status)) {
    int32_t plen = pattern.length();
    const UChar* pat = pattern.getBuffer();
    int32_t blen = plen * 2 + 1; // space for null termination, convenience
    UChar* buf = result.getBuffer(blen);
    if (buf == NULL) {
      status = U_MEMORY_ALLOCATION_ERROR;
    } else {
      int32_t len = umsg_autoQuoteApostrophe(pat, plen, buf, blen, &status);
      result.releaseBuffer(U_SUCCESS(status) ? len : 0);
    }
  }
  if (U_FAILURE(status)) {
    result.setToBogus();
  }
  return result;
}

UnicodeString& U_EXPORT2
ZoneMeta::getSingleCountry(const UnicodeString &tzid, UnicodeString &country) {
    // Get canonical country for the zone
    const UChar *region = TimeZone::getRegion(tzid);
    if (region == NULL || u_strcmp(gWorld, region) == 0) {
        // special case - unknown or "001"
        country.setToBogus();
        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.setToBogus();
            return country;
        }
        U_ASSERT(gSingleZoneCountries != NULL);
        U_ASSERT(gMultiZonesCountries != NULL);
    }

    // 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::createTimeZoneIDEnumeration(UCAL_ZONE_TYPE_CANONICAL_LOCATION, buf, NULL, status);
        int32_t idsLen = ids->count(status);
        if (U_SUCCESS(status) && idsLen > 1) {
            // multiple canonical zones are available for the region
            multiZones = TRUE;
        }
        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)) {
                    gMultiZonesCountries->addElement((void*)region, ec);
                }
            } else {
                if (!gSingleZoneCountries->contains((void*)region)) {
                    gSingleZoneCountries->addElement((void*)region, ec);
                }
            }
        }
        umtx_unlock(&gZoneMetaLock);
    }

    if (multiZones) {
        country.setToBogus();
    } else {
//.........这里部分代码省略.........

 inline CDFUnit() : prefix(), suffix() {
   prefix.setToBogus();
 }