C++ Formattable::adoptObject方法代码示例

status_t
BTimeUnitFormat::Format(BString& buffer, const int32 value,
	const time_unit_element unit) const
{
	if (unit < 0 || unit > B_TIME_UNIT_LAST)
		return B_BAD_VALUE;

	if (fFormatter == NULL)
		return B_NO_INIT;

	UErrorCode icuStatus = U_ZERO_ERROR;
	TimeUnitAmount* timeUnitAmount
		= new TimeUnitAmount((double)value, skUnitMap[unit], icuStatus);
	if (timeUnitAmount == NULL)
		return B_NO_MEMORY;
	if (!U_SUCCESS(icuStatus))
		return B_ERROR;

	Formattable formattable;
	formattable.adoptObject(timeUnitAmount);
	FieldPosition pos(FieldPosition::DONT_CARE);
	UnicodeString unicodeResult;
	fFormatter->format(formattable, unicodeResult, pos, icuStatus);
	if (!U_SUCCESS(icuStatus))
		return B_ERROR;

	BStringByteSink byteSink(&buffer);
	unicodeResult.toUTF8(byteSink);

	return B_OK;
}

void TimeUnitTest::test10219Plurals() {
    Locale usLocale("en_US");
    double values[2] = {1.588, 1.011};
    UnicodeString expected[2][3] = {
        {"1 minute", "1.5 minutes", "1.58 minutes"},
        {"1 minute", "1.0 minutes", "1.01 minutes"}
    };
    UErrorCode status = U_ZERO_ERROR;
    TimeUnitFormat tuf(usLocale, status);
    if (U_FAILURE(status)) {
        dataerrln("generating TimeUnitFormat Object failed: %s", u_errorName(status));
        return;
    }
    LocalPointer<DecimalFormat> nf((DecimalFormat *) NumberFormat::createInstance(usLocale, status));
    if (U_FAILURE(status)) {
        dataerrln("generating NumberFormat Object failed: %s", u_errorName(status));
        return;
    }
    for (int32_t j = 0; j < UPRV_LENGTHOF(values); ++j) {
        for (int32_t i = 0; i < UPRV_LENGTHOF(expected[j]); ++i) {
            nf->setMinimumFractionDigits(i);
            nf->setMaximumFractionDigits(i);
            nf->setRoundingMode(DecimalFormat::kRoundDown);
            tuf.setNumberFormat(*nf, status);
            if (U_FAILURE(status)) {
                dataerrln("setting NumberFormat failed: %s", u_errorName(status));
                return;
            }
            UnicodeString actual;
            Formattable fmt;
            LocalPointer<TimeUnitAmount> tamt(
                new TimeUnitAmount(values[j], TimeUnit::UTIMEUNIT_MINUTE, status), status);
            if (U_FAILURE(status)) {
                dataerrln("generating TimeUnitAmount Object failed: %s", u_errorName(status));
                return;
            }
            fmt.adoptObject(tamt.orphan());
            tuf.format(fmt, actual, status);
            if (U_FAILURE(status)) {
                dataerrln("Actual formatting failed: %s", u_errorName(status));
                return;
            }
            if (expected[j][i] != actual) {
                errln("Expected " + expected[j][i] + ", got " + actual);
            }
        }
    }

    // test parsing
    Formattable result;
    ParsePosition pos;
    UnicodeString formattedString = "1 minutes";
    tuf.parseObject(formattedString, result, pos);
    if (formattedString.length() != pos.getIndex()) {
        errln("Expect parsing to go all the way to the end of the string.");
    }
}

void CurrencyFormat::parseObject(const UnicodeString& source,
                                 Formattable& result,
                                 ParsePosition& pos) const
{
    CurrencyAmount* currAmt = fmt->parseCurrency(source, pos);
    if (currAmt != NULL) {
        result.adoptObject(currAmt);
    }
}

/**
 * Test basic
 */
void TimeUnitTest::testBasic() {
    const char* locales[] = {"en", "sl", "fr", "zh", "ar", "ru", "zh_Hant", "pa"};
    for ( unsigned int locIndex = 0; 
          locIndex < sizeof(locales)/sizeof(locales[0]); 
          ++locIndex ) {
        UErrorCode status = U_ZERO_ERROR;
        Locale loc(locales[locIndex]);
        TimeUnitFormat** formats = new TimeUnitFormat*[2];
        formats[UTMUTFMT_FULL_STYLE] = new TimeUnitFormat(loc, status);
        if (!assertSuccess("TimeUnitFormat(full)", status, TRUE)) return;
        formats[UTMUTFMT_ABBREVIATED_STYLE] = new TimeUnitFormat(loc, UTMUTFMT_ABBREVIATED_STYLE, status);
        if (!assertSuccess("TimeUnitFormat(short)", status)) return;
#ifdef TUFMTTS_DEBUG
        std::cout << "locale: " << locales[locIndex] << "\n";
#endif
        for (int style = UTMUTFMT_FULL_STYLE; 
             style <= UTMUTFMT_ABBREVIATED_STYLE;
             ++style) {
          for (TimeUnit::UTimeUnitFields j = TimeUnit::UTIMEUNIT_YEAR; 
             j < TimeUnit::UTIMEUNIT_FIELD_COUNT; 
             j = (TimeUnit::UTimeUnitFields)(j+1)) {
#ifdef TUFMTTS_DEBUG
            std::cout << "time unit: " << j << "\n";
#endif
            double tests[] = {0, 0.5, 1, 1.5, 2, 2.5, 3, 3.5, 5, 10, 100, 101.35};
            for (unsigned int i = 0; i < sizeof(tests)/sizeof(tests[0]); ++i) {
#ifdef TUFMTTS_DEBUG
                std::cout << "number: " << tests[i] << "\n";
#endif
                TimeUnitAmount* source = new TimeUnitAmount(tests[i], j, status);
                if (!assertSuccess("TimeUnitAmount()", status)) return;
                UnicodeString formatted;
                Formattable formattable;
                formattable.adoptObject(source);
                formatted = ((Format*)formats[style])->format(formattable, formatted, status);
                if (!assertSuccess("format()", status)) return;
#ifdef TUFMTTS_DEBUG
                char formatResult[1000];
                formatted.extract(0, formatted.length(), formatResult, "UTF-8");
                std::cout << "format result: " << formatResult << "\n";
#endif
                Formattable result;
                ((Format*)formats[style])->parseObject(formatted, result, status);
                if (!assertSuccess("parseObject()", status)) return;
                if (result != formattable) {
                    dataerrln("No round trip: ");
                }
                // other style parsing
                Formattable result_1;
                ((Format*)formats[1-style])->parseObject(formatted, result_1, status);
                if (!assertSuccess("parseObject()", status)) return;
                if (result_1 != formattable) {
                    dataerrln("No round trip: ");
                }
            }
          }
        }
        delete formats[UTMUTFMT_FULL_STYLE];
        delete formats[UTMUTFMT_ABBREVIATED_STYLE];
        delete[] formats;
    }
}

//.........这里部分代码省略.........

    const UnicodeString oneSecondStr(oneSecond);
    const UnicodeString oneSecondShortStr(oneSecondShort);
    const UnicodeString oneMinuteStr(oneMinute);
    const UnicodeString oneMinuteShortStr(oneMinuteShort);
    const UnicodeString oneHourStr(oneHour);
    const UnicodeString oneDayStr(oneDay);
    const UnicodeString oneMonthStr(oneMonth);
    const UnicodeString oneMonthShortStr(oneMonthShort);
    const UnicodeString oneYearStr(oneYear);
    const UnicodeString sevenSecondsStr(sevenSeconds);
    const UnicodeString sevenSecondsShortStr(sevenSecondsShort);
    const UnicodeString sevenMinutesStr(sevenMinutes);
    const UnicodeString sevenMinutesShortStr(sevenMinutesShort);
    const UnicodeString sevenHoursStr(sevenHours);
    const UnicodeString sevenDaysStr(sevenDays);
    const UnicodeString sevenMonthsStr(sevenMonths);
    const UnicodeString sevenMonthsShortStr(sevenMonthsShort);
    const UnicodeString sevenYearsStr(sevenYears);

    const UnicodeString expected[] = {oneSecondStr, oneMinuteStr, oneHourStr, oneDayStr, oneMonthStr, oneYearStr,
                              oneSecondShortStr, oneMinuteShortStr, oneHourStr, oneDayStr, oneMonthShortStr, oneYearStr,
                              sevenSecondsStr, sevenMinutesStr, sevenHoursStr, sevenDaysStr, sevenMonthsStr, sevenYearsStr,
                              sevenSecondsShortStr, sevenMinutesShortStr, sevenHoursStr, sevenDaysStr, sevenMonthsShortStr, sevenYearsStr,
                              oneSecondStr, oneMinuteStr, oneHourStr, oneDayStr, oneMonthStr, oneYearStr,
                              oneSecondShortStr, oneMinuteShortStr, oneHourStr, oneDayStr, oneMonthShortStr, oneYearStr,
                              sevenSecondsStr, sevenMinutesStr, sevenHoursStr, sevenDaysStr, sevenMonthsStr, sevenYearsStr,
                              sevenSecondsShortStr, sevenMinutesShortStr, sevenHoursStr, sevenDaysStr, sevenMonthsShortStr, sevenYearsStr};

    int counter = 0;
    for ( unsigned int locIndex = 0;
        locIndex < sizeof(locales)/sizeof(locales[0]);
        ++locIndex ) {

        Locale l = Locale::createFromName(locales[locIndex]);

        for ( unsigned int numberIndex = 0;
            numberIndex < sizeof(numbers)/sizeof(int);
            ++numberIndex ) {

            for ( unsigned int styleIndex = 0;
                styleIndex < sizeof(styles)/sizeof(styles[0]);
                ++styleIndex ) {

                for ( unsigned int unitIndex = 0;
                    unitIndex < sizeof(tunits)/sizeof(tunits[0]);
                    ++unitIndex ) {

                    TimeUnitAmount *tamt = new TimeUnitAmount(numbers[numberIndex], tunits[unitIndex], status);
                    if (U_FAILURE(status)) {
                        dataerrln("generating TimeUnitAmount Object failed.");
#ifdef TUFMTTS_DEBUG
                        std::cout << "Failed to get TimeUnitAmount for " << tunits[unitIndex] << "\n";
#endif
                        return;
                    }

                    TimeUnitFormat *tfmt = new TimeUnitFormat(l, styles[styleIndex], status);
                    if (U_FAILURE(status)) {
                        dataerrln("generating TimeUnitAmount Object failed.");
#ifdef TUFMTTS_DEBUG
                       std::cout <<  "Failed to get TimeUnitFormat for " << locales[locIndex] << "\n";
#endif
                       return;
                    }

                    Formattable fmt;
                    UnicodeString str;

                    fmt.adoptObject(tamt);
                    str = ((Format *)tfmt)->format(fmt, str, status);
                    if (!assertSuccess("formatting relative time failed", status)) {
                        delete tfmt;
#ifdef TUFMTTS_DEBUG
                        std::cout <<  "Failed to format" << "\n";
#endif
                        return;
                    }

#ifdef TUFMTTS_DEBUG
                    char tmp[128];    //output
                    char tmp1[128];    //expected
                    int len = 0;
                    u_strToUTF8(tmp, 128, &len, str.getTerminatedBuffer(), str.length(), &status);
                    u_strToUTF8(tmp1, 128, &len, expected[counter].unescape().getTerminatedBuffer(), expected[counter].unescape().length(), &status);
                    std::cout <<  "Formatted string : " << tmp << " expected : " << tmp1 << "\n";
#endif
                    if (!assertEquals("formatted time string is not expected, locale: " + UnicodeString(locales[locIndex]) + " style: " + (int)styles[styleIndex] + " units: " + (int)tunits[unitIndex], expected[counter], str)) {
                        delete tfmt;
                        str.remove();
                        return;
                    }
                    delete tfmt;
                    str.remove();
                    ++counter;
                }
            }
        }
    }
}

//.........这里部分代码省略.........
#endif
    // parse by iterating through all available patterns
    // and looking for the longest match.
    for (TimeUnit::UTimeUnitFields i = TimeUnit::UTIMEUNIT_YEAR;
         i < TimeUnit::UTIMEUNIT_FIELD_COUNT;
         i = (TimeUnit::UTimeUnitFields)(i+1)) {
        Hashtable* countToPatterns = fTimeUnitToCountToPatterns[i];
        int32_t elemPos = UHASH_FIRST;
        const UHashElement* elem = NULL;
        while ((elem = countToPatterns->nextElement(elemPos)) != NULL){
            const UHashTok keyTok = elem->key;
            UnicodeString* count = (UnicodeString*)keyTok.pointer;
#ifdef TMUTFMT_DEBUG
            count->extract(0, count->length(), res, "UTF-8");
            std::cout << "parse plural count: " << res << "\n";
#endif
            const UHashTok valueTok = elem->value;
            // the value is a pair of MessageFormat*
            MessageFormat** patterns = (MessageFormat**)valueTok.pointer;
            for (UTimeUnitFormatStyle style = UTMUTFMT_FULL_STYLE; style < UTMUTFMT_FORMAT_STYLE_COUNT;
                 style = (UTimeUnitFormatStyle)(style + 1)) {
                MessageFormat* pattern = patterns[style];
                pos.setErrorIndex(-1);
                pos.setIndex(oldPos);
                // see if we can parse
                Formattable parsed;
                pattern->parseObject(source, parsed, pos);
                if (pos.getErrorIndex() != -1 || pos.getIndex() == oldPos) {
                    continue;
                }
    #ifdef TMUTFMT_DEBUG
                std::cout << "parsed.getType: " << parsed.getType() << "\n";
    #endif
                Formattable tmpNumber(0.0);
                if (pattern->getArgTypeCount() != 0) {
                    Formattable& temp = parsed[0];
                    if (temp.getType() == Formattable::kString) {
                        UnicodeString tmpString;
                        UErrorCode pStatus = U_ZERO_ERROR;
                        getNumberFormat().parse(temp.getString(tmpString), tmpNumber, pStatus);
                        if (U_FAILURE(pStatus)) {
                            continue;
                        }
                    } else if (temp.isNumeric()) {
                        tmpNumber = temp;
                    } else {
                        continue;
                    }
                }
                int32_t parseDistance = pos.getIndex() - oldPos;
                if (parseDistance > longestParseDistance) {
                    if (pattern->getArgTypeCount() != 0) {
                        resultNumber = tmpNumber;
                        withNumberFormat = true;
                    } else {
                        withNumberFormat = false;
                    }
                    resultTimeUnit = i;
                    newPos = pos.getIndex();
                    longestParseDistance = parseDistance;
                    countOfLongestMatch = count;
                }
            }
        }
    }
    /* After find the longest match, parse the number.
     * Result number could be null for the pattern without number pattern.
     * such as unit pattern in Arabic.
     * When result number is null, use plural rule to set the number.
     */
    if (withNumberFormat == false && longestParseDistance != 0) {
        // set the number using plurrual count
        if (0 == countOfLongestMatch->compare(PLURAL_COUNT_ZERO, 4)) {
            resultNumber = Formattable(0.0);
        } else if (0 == countOfLongestMatch->compare(PLURAL_COUNT_ONE, 3)) {
            resultNumber = Formattable(1.0);
        } else if (0 == countOfLongestMatch->compare(PLURAL_COUNT_TWO, 3)) {
            resultNumber = Formattable(2.0);
        } else {
            // should not happen.
            // TODO: how to handle?
            resultNumber = Formattable(3.0);
        }
    }
    if (longestParseDistance == 0) {
        pos.setIndex(oldPos);
        pos.setErrorIndex(0);
    } else {
        UErrorCode status = U_ZERO_ERROR;
        TimeUnitAmount* tmutamt = new TimeUnitAmount(resultNumber, resultTimeUnit, status);
        if (U_SUCCESS(status)) {
            result.adoptObject(tmutamt);
            pos.setIndex(newPos);
            pos.setErrorIndex(-1);
        } else {
            pos.setIndex(oldPos);
            pos.setErrorIndex(0);
        }
    }
}

//.........这里部分代码省略.........
         i < TimeUnit::UTIMEUNIT_FIELD_COUNT;
         i = (TimeUnit::UTimeUnitFields)(i+1)) {
        Hashtable* countToPatterns = fTimeUnitToCountToPatterns[i];
        int32_t elemPos = -1;
        const UHashElement* elem = NULL;
        while ((elem = countToPatterns->nextElement(elemPos)) != NULL){
            const UHashTok keyTok = elem->key;
            UnicodeString* count = (UnicodeString*)keyTok.pointer;
#ifdef TMUTFMT_DEBUG
            count->extract(0, count->length(), res, "UTF-8");
            std::cout << "parse plural count: " << res << "\n";           
#endif
            const UHashTok valueTok = elem->value;
            // the value is a pair of MessageFormat*
            MessageFormat** patterns = (MessageFormat**)valueTok.pointer;
            for (EStyle style = kFull; style < kTotal; style = (EStyle)(style + 1)) {
                MessageFormat* pattern = patterns[style];
                pos.setErrorIndex(-1);
                pos.setIndex(oldPos);
                // see if we can parse
                Formattable parsed;
                pattern->parseObject(source, parsed, pos);
                if (pos.getErrorIndex() != -1 || pos.getIndex() == oldPos) {
                    continue;
                }
    #ifdef TMUTFMT_DEBUG
                std::cout << "parsed.getType: " << parsed.getType() << "\n";
    #endif
                double tmpNumber = 0;
                if (pattern->getArgTypeCount() != 0) {
                    // pattern with Number as beginning, such as "{0} d".
                    // check to make sure that the timeUnit is consistent
                    Formattable& temp = parsed[0];
                    if (temp.getType() == Formattable::kDouble) {
                        tmpNumber = temp.getDouble();
                    } else if (temp.getType() == Formattable::kLong) {
                        tmpNumber = temp.getLong();
                    } else {
                        continue;
                    }
                    UnicodeString select = fPluralRules->select(tmpNumber);
    #ifdef TMUTFMT_DEBUG
                    select.extract(0, select.length(), res, "UTF-8");
                    std::cout << "parse plural select count: " << res << "\n"; 
    #endif
                    if (*count != select) {
                        continue;
                    }
                }
                int32_t parseDistance = pos.getIndex() - oldPos;
                if (parseDistance > longestParseDistance) {
                    if (pattern->getArgTypeCount() != 0) {
                        resultNumber = tmpNumber;
                        withNumberFormat = true;
                    } else {
                        withNumberFormat = false;
                    }
                    resultTimeUnit = i;
                    newPos = pos.getIndex();
                    longestParseDistance = parseDistance;
                    countOfLongestMatch = count;
                }
            }
        }
    }
    /* After find the longest match, parse the number.
     * Result number could be null for the pattern without number pattern.
     * such as unit pattern in Arabic.
     * When result number is null, use plural rule to set the number.
     */
    if (withNumberFormat == false && longestParseDistance != 0) {
        // set the number using plurrual count
        if ( *countOfLongestMatch == PLURAL_COUNT_ZERO ) {
            resultNumber = 0;
        } else if ( *countOfLongestMatch == PLURAL_COUNT_ONE ) {
            resultNumber = 1;
        } else if ( *countOfLongestMatch == PLURAL_COUNT_TWO ) {
            resultNumber = 2;
        } else {
            // should not happen.
            // TODO: how to handle?
            resultNumber = 3;
        }
    }
    if (longestParseDistance == 0) {
        pos.setIndex(oldPos);
        pos.setErrorIndex(0);
    } else {
        UErrorCode status = U_ZERO_ERROR;
        TimeUnitAmount* tmutamt = new TimeUnitAmount(resultNumber, resultTimeUnit, status);
        if (U_SUCCESS(status)) {
            result.adoptObject(tmutamt);
            pos.setIndex(newPos);
            pos.setErrorIndex(-1);
        } else {
            pos.setIndex(oldPos);
            pos.setErrorIndex(0);
        }
    }
}