Adding upstream version 115.7.0esr.upstream/115.7.0esrupstream

Signed-off-by: Daniel Baumann <daniel.baumann@progress-linux.org>

1 files changed, 893 insertions, 0 deletions

diff --git a/intl/icu/source/i18n/measfmt.cpp b/intl/icu/source/i18n/measfmt.cpp
new file mode 100644
index 0000000000..da4e69b49b
--- /dev/null
+++ b/intl/icu/source/i18n/measfmt.cpp
@@ -0,0 +1,893 @@
+// © 2016 and later: Unicode, Inc. and others.
+// License & terms of use: http://www.unicode.org/copyright.html
+/*
+**********************************************************************
+* Copyright (c) 2004-2016, International Business Machines
+* Corporation and others.  All Rights Reserved.
+**********************************************************************
+* Author: Alan Liu
+* Created: April 20, 2004
+* Since: ICU 3.0
+**********************************************************************
+*/
+#include "utypeinfo.h"  // for 'typeid' to work
+#include "unicode/utypes.h"
+
+#if !UCONFIG_NO_FORMATTING
+
+#include "unicode/measfmt.h"
+#include "unicode/numfmt.h"
+#include "currfmt.h"
+#include "unicode/localpointer.h"
+#include "resource.h"
+#include "unicode/simpleformatter.h"
+#include "quantityformatter.h"
+#include "unicode/plurrule.h"
+#include "unicode/decimfmt.h"
+#include "uresimp.h"
+#include "unicode/ures.h"
+#include "unicode/ustring.h"
+#include "ureslocs.h"
+#include "cstring.h"
+#include "mutex.h"
+#include "ucln_in.h"
+#include "unicode/listformatter.h"
+#include "charstr.h"
+#include "unicode/putil.h"
+#include "unicode/smpdtfmt.h"
+#include "uassert.h"
+#include "unicode/numberformatter.h"
+#include "number_longnames.h"
+#include "number_utypes.h"
+
+#include "sharednumberformat.h"
+#include "sharedpluralrules.h"
+#include "standardplural.h"
+#include "unifiedcache.h"
+
+
+U_NAMESPACE_BEGIN
+
+using number::impl::UFormattedNumberData;
+
+static constexpr int32_t WIDTH_INDEX_COUNT = UMEASFMT_WIDTH_NARROW + 1;
+
+UOBJECT_DEFINE_RTTI_IMPLEMENTATION(MeasureFormat)
+
+// Used to format durations like 5:47 or 21:35:42.
+class NumericDateFormatters : public UMemory {
+public:
+    // Formats like H:mm
+    UnicodeString hourMinute;
+
+    // formats like M:ss
+    UnicodeString minuteSecond;
+
+    // formats like H:mm:ss
+    UnicodeString hourMinuteSecond;
+
+    // Constructor that takes the actual patterns for hour-minute,
+    // minute-second, and hour-minute-second respectively.
+    NumericDateFormatters(
+            const UnicodeString &hm,
+            const UnicodeString &ms,
+            const UnicodeString &hms) :
+            hourMinute(hm),
+            minuteSecond(ms),
+            hourMinuteSecond(hms) {
+    }
+private:
+    NumericDateFormatters(const NumericDateFormatters &other);
+    NumericDateFormatters &operator=(const NumericDateFormatters &other);
+};
+
+static UMeasureFormatWidth getRegularWidth(UMeasureFormatWidth width) {
+    if (width >= WIDTH_INDEX_COUNT) {
+        return UMEASFMT_WIDTH_NARROW;
+    }
+    return width;
+}
+
+static UNumberUnitWidth getUnitWidth(UMeasureFormatWidth width) {
+    switch (width) {
+    case UMEASFMT_WIDTH_WIDE:
+        return UNUM_UNIT_WIDTH_FULL_NAME;
+    case UMEASFMT_WIDTH_NARROW:
+    case UMEASFMT_WIDTH_NUMERIC:
+        return UNUM_UNIT_WIDTH_NARROW;
+    case UMEASFMT_WIDTH_SHORT:
+    default:
+        return UNUM_UNIT_WIDTH_SHORT;
+    }
+}
+
+/**
+ * Instances contain all MeasureFormat specific data for a particular locale.
+ * This data is cached. It is never copied, but is shared via shared pointers.
+ *
+ * Note: We might change the cache data to have an array[WIDTH_INDEX_COUNT] of
+ * complete sets of unit & per patterns,
+ * to correspond to the resource data and its aliases.
+ *
+ * TODO: Maybe store more sparsely in general, with pointers rather than potentially-empty objects.
+ */
+class MeasureFormatCacheData : public SharedObject {
+public:
+
+    /**
+     * Redirection data from root-bundle, top-level sideways aliases.
+     * - UMEASFMT_WIDTH_COUNT: initial value, just fall back to root
+     * - UMEASFMT_WIDTH_WIDE/SHORT/NARROW: sideways alias for missing data
+     */
+    UMeasureFormatWidth widthFallback[WIDTH_INDEX_COUNT];
+
+    MeasureFormatCacheData();
+    virtual ~MeasureFormatCacheData();
+
+    void adoptCurrencyFormat(int32_t widthIndex, NumberFormat *nfToAdopt) {
+        delete currencyFormats[widthIndex];
+        currencyFormats[widthIndex] = nfToAdopt;
+    }
+    const NumberFormat *getCurrencyFormat(UMeasureFormatWidth width) const {
+        return currencyFormats[getRegularWidth(width)];
+    }
+    void adoptIntegerFormat(NumberFormat *nfToAdopt) {
+        delete integerFormat;
+        integerFormat = nfToAdopt;
+    }
+    const NumberFormat *getIntegerFormat() const {
+        return integerFormat;
+    }
+    void adoptNumericDateFormatters(NumericDateFormatters *formattersToAdopt) {
+        delete numericDateFormatters;
+        numericDateFormatters = formattersToAdopt;
+    }
+    const NumericDateFormatters *getNumericDateFormatters() const {
+        return numericDateFormatters;
+    }
+
+private:
+    NumberFormat* currencyFormats[WIDTH_INDEX_COUNT];
+    NumberFormat* integerFormat;
+    NumericDateFormatters* numericDateFormatters;
+
+    MeasureFormatCacheData(const MeasureFormatCacheData &other);
+    MeasureFormatCacheData &operator=(const MeasureFormatCacheData &other);
+};
+
+MeasureFormatCacheData::MeasureFormatCacheData()
+        : integerFormat(nullptr), numericDateFormatters(nullptr) {
+    for (int32_t i = 0; i < WIDTH_INDEX_COUNT; ++i) {
+        widthFallback[i] = UMEASFMT_WIDTH_COUNT;
+    }
+    memset(currencyFormats, 0, sizeof(currencyFormats));
+}
+
+MeasureFormatCacheData::~MeasureFormatCacheData() {
+    for (int32_t i = 0; i < UPRV_LENGTHOF(currencyFormats); ++i) {
+        delete currencyFormats[i];
+    }
+    // Note: the contents of 'dnams' are pointers into the resource bundle
+    delete integerFormat;
+    delete numericDateFormatters;
+}
+
+static UBool isCurrency(const MeasureUnit &unit) {
+    return (uprv_strcmp(unit.getType(), "currency") == 0);
+}
+
+static UBool getString(
+        const UResourceBundle *resource,
+        UnicodeString &result,
+        UErrorCode &status) {
+    int32_t len = 0;
+    const char16_t *resStr = ures_getString(resource, &len, &status);
+    if (U_FAILURE(status)) {
+        return false;
+    }
+    result.setTo(true, resStr, len);
+    return true;
+}
+
+static UnicodeString loadNumericDateFormatterPattern(
+        const UResourceBundle *resource,
+        const char *pattern,
+        UErrorCode &status) {
+    UnicodeString result;
+    if (U_FAILURE(status)) {
+        return result;
+    }
+    CharString chs;
+    chs.append("durationUnits", status)
+            .append("/", status).append(pattern, status);
+    LocalUResourceBundlePointer patternBundle(
+            ures_getByKeyWithFallback(
+                resource,
+                chs.data(),
+                nullptr,
+                &status));
+    if (U_FAILURE(status)) {
+        return result;
+    }
+    getString(patternBundle.getAlias(), result, status);
+    // Replace 'h' with 'H'
+    int32_t len = result.length();
+    char16_t *buffer = result.getBuffer(len);
+    for (int32_t i = 0; i < len; ++i) {
+        if (buffer[i] == 0x68) { // 'h'
+            buffer[i] = 0x48; // 'H'
+        }
+    }
+    result.releaseBuffer(len);
+    return result;
+}
+
+static NumericDateFormatters *loadNumericDateFormatters(
+        const UResourceBundle *resource,
+        UErrorCode &status) {
+    if (U_FAILURE(status)) {
+        return nullptr;
+    }
+    NumericDateFormatters *result = new NumericDateFormatters(
+        loadNumericDateFormatterPattern(resource, "hm", status),
+        loadNumericDateFormatterPattern(resource, "ms", status),
+        loadNumericDateFormatterPattern(resource, "hms", status));
+    if (U_FAILURE(status)) {
+        delete result;
+        return nullptr;
+    }
+    return result;
+}
+
+template<> 
+const MeasureFormatCacheData *LocaleCacheKey<MeasureFormatCacheData>::createObject(
+        const void * /*unused*/, UErrorCode &status) const {
+    const char *localeId = fLoc.getName();
+    LocalUResourceBundlePointer unitsBundle(ures_open(U_ICUDATA_UNIT, localeId, &status));
+    static UNumberFormatStyle currencyStyles[] = {
+            UNUM_CURRENCY_PLURAL, UNUM_CURRENCY_ISO, UNUM_CURRENCY};
+    LocalPointer<MeasureFormatCacheData> result(new MeasureFormatCacheData(), status);
+    if (U_FAILURE(status)) {
+        return nullptr;
+    }
+    result->adoptNumericDateFormatters(loadNumericDateFormatters(
+            unitsBundle.getAlias(), status));
+    if (U_FAILURE(status)) {
+        return nullptr;
+    }
+
+    for (int32_t i = 0; i < WIDTH_INDEX_COUNT; ++i) {
+        // NumberFormat::createInstance can erase warning codes from status, so pass it
+        // a separate status instance
+        UErrorCode localStatus = U_ZERO_ERROR;
+        result->adoptCurrencyFormat(i, NumberFormat::createInstance(
+                localeId, currencyStyles[i], localStatus));
+        if (localStatus != U_ZERO_ERROR) {
+            status = localStatus;
+        }
+        if (U_FAILURE(status)) {
+            return nullptr;
+        }
+    }
+    NumberFormat *inf = NumberFormat::createInstance(
+            localeId, UNUM_DECIMAL, status);
+    if (U_FAILURE(status)) {
+        return nullptr;
+    }
+    inf->setMaximumFractionDigits(0);
+    DecimalFormat *decfmt = dynamic_cast<DecimalFormat *>(inf);
+    if (decfmt != nullptr) {
+        decfmt->setRoundingMode(DecimalFormat::kRoundDown);
+    }
+    result->adoptIntegerFormat(inf);
+    result->addRef();
+    return result.orphan();
+}
+
+static UBool isTimeUnit(const MeasureUnit &mu, const char *tu) {
+    return uprv_strcmp(mu.getType(), "duration") == 0 &&
+            uprv_strcmp(mu.getSubtype(), tu) == 0;
+}
+
+// Converts a composite measure into hours-minutes-seconds and stores at hms
+// array. [0] is hours; [1] is minutes; [2] is seconds. Returns a bit map of
+// units found: 1=hours, 2=minutes, 4=seconds. For example, if measures
+// contains hours-minutes, this function would return 3.
+//
+// If measures cannot be converted into hours, minutes, seconds or if amounts
+// are negative, or if hours, minutes, seconds are out of order, returns 0.
+static int32_t toHMS(
+        const Measure *measures,
+        int32_t measureCount,
+        Formattable *hms,
+        UErrorCode &status) {
+    if (U_FAILURE(status)) {
+        return 0;
+    }
+    int32_t result = 0;
+    if (U_FAILURE(status)) {
+        return 0;
+    }
+    // We use copy constructor to ensure that both sides of equality operator
+    // are instances of MeasureUnit base class and not a subclass. Otherwise,
+    // operator== will immediately return false.
+    for (int32_t i = 0; i < measureCount; ++i) {
+        if (isTimeUnit(measures[i].getUnit(), "hour")) {
+            // hour must come first
+            if (result >= 1) {
+                return 0;
+            }
+            hms[0] = measures[i].getNumber();
+            if (hms[0].getDouble() < 0.0) {
+                return 0;
+            }
+            result |= 1;
+        } else if (isTimeUnit(measures[i].getUnit(), "minute")) {
+            // minute must come after hour
+            if (result >= 2) {
+                return 0;
+            }
+            hms[1] = measures[i].getNumber();
+            if (hms[1].getDouble() < 0.0) {
+                return 0;
+            }
+            result |= 2;
+        } else if (isTimeUnit(measures[i].getUnit(), "second")) {
+            // second must come after hour and minute
+            if (result >= 4) {
+                return 0;
+            }
+            hms[2] = measures[i].getNumber();
+            if (hms[2].getDouble() < 0.0) {
+                return 0;
+            }
+            result |= 4;
+        } else {
+            return 0;
+        }
+    }
+    return result;
+}
+
+
+MeasureFormat::MeasureFormat(
+        const Locale &locale, UMeasureFormatWidth w, UErrorCode &status)
+        : cache(nullptr),
+          numberFormat(nullptr),
+          pluralRules(nullptr),
+          fWidth(w),
+          listFormatter(nullptr) {
+    initMeasureFormat(locale, w, nullptr, status);
+}
+
+MeasureFormat::MeasureFormat(
+        const Locale &locale,
+        UMeasureFormatWidth w,
+        NumberFormat *nfToAdopt,
+        UErrorCode &status) 
+        : cache(nullptr),
+          numberFormat(nullptr),
+          pluralRules(nullptr),
+          fWidth(w),
+          listFormatter(nullptr) {
+    initMeasureFormat(locale, w, nfToAdopt, status);
+}
+
+MeasureFormat::MeasureFormat(const MeasureFormat &other) :
+        Format(other),
+        cache(other.cache),
+        numberFormat(other.numberFormat),
+        pluralRules(other.pluralRules),
+        fWidth(other.fWidth),
+        listFormatter(nullptr) {
+    cache->addRef();
+    numberFormat->addRef();
+    pluralRules->addRef();
+    if (other.listFormatter != nullptr) {
+        listFormatter = new ListFormatter(*other.listFormatter);
+    }
+}
+
+MeasureFormat &MeasureFormat::operator=(const MeasureFormat &other) {
+    if (this == &other) {
+        return *this;
+    }
+    Format::operator=(other);
+    SharedObject::copyPtr(other.cache, cache);
+    SharedObject::copyPtr(other.numberFormat, numberFormat);
+    SharedObject::copyPtr(other.pluralRules, pluralRules);
+    fWidth = other.fWidth;
+    delete listFormatter;
+    if (other.listFormatter != nullptr) {
+        listFormatter = new ListFormatter(*other.listFormatter);
+    } else {
+        listFormatter = nullptr;
+    }
+    return *this;
+}
+
+MeasureFormat::MeasureFormat() :
+        cache(nullptr),
+        numberFormat(nullptr),
+        pluralRules(nullptr),
+        fWidth(UMEASFMT_WIDTH_SHORT),
+        listFormatter(nullptr) {
+}
+
+MeasureFormat::~MeasureFormat() {
+    if (cache != nullptr) {
+        cache->removeRef();
+    }
+    if (numberFormat != nullptr) {
+        numberFormat->removeRef();
+    }
+    if (pluralRules != nullptr) {
+        pluralRules->removeRef();
+    }
+    delete listFormatter;
+}
+
+bool MeasureFormat::operator==(const Format &other) const {
+    if (this == &other) { // Same object, equal
+        return true;
+    }
+    if (!Format::operator==(other)) {
+        return false;
+    }
+    const MeasureFormat &rhs = static_cast<const MeasureFormat &>(other);
+
+    // Note: Since the ListFormatter depends only on Locale and width, we
+    // don't have to check it here.
+
+    // differing widths aren't equivalent
+    if (fWidth != rhs.fWidth) {
+        return false;
+    }
+    // Width the same check locales.
+    // We don't need to check locales if both objects have same cache.
+    if (cache != rhs.cache) {
+        UErrorCode status = U_ZERO_ERROR;
+        const char *localeId = getLocaleID(status);
+        const char *rhsLocaleId = rhs.getLocaleID(status);
+        if (U_FAILURE(status)) {
+            // On failure, assume not equal
+            return false;
+        }
+        if (uprv_strcmp(localeId, rhsLocaleId) != 0) {
+            return false;
+        }
+    }
+    // Locales same, check NumberFormat if shared data differs.
+    return (
+            numberFormat == rhs.numberFormat ||
+            **numberFormat == **rhs.numberFormat);
+}
+
+MeasureFormat *MeasureFormat::clone() const {
+    return new MeasureFormat(*this);
+}
+
+UnicodeString &MeasureFormat::format(
+        const Formattable &obj,
+        UnicodeString &appendTo,
+        FieldPosition &pos,
+        UErrorCode &status) const {
+    if (U_FAILURE(status)) return appendTo;
+    if (obj.getType() == Formattable::kObject) {
+        const UObject* formatObj = obj.getObject();
+        const Measure* amount = dynamic_cast<const Measure*>(formatObj);
+        if (amount != nullptr) {
+            return formatMeasure(
+                    *amount, **numberFormat, appendTo, pos, status);
+        }
+    }
+    status = U_ILLEGAL_ARGUMENT_ERROR;
+    return appendTo;
+}
+
+void MeasureFormat::parseObject(
+        const UnicodeString & /*source*/,
+        Formattable & /*result*/,
+        ParsePosition& /*pos*/) const {
+    return;
+}
+
+UnicodeString &MeasureFormat::formatMeasurePerUnit(
+        const Measure &measure,
+        const MeasureUnit &perUnit,
+        UnicodeString &appendTo,
+        FieldPosition &pos,
+        UErrorCode &status) const {
+    if (U_FAILURE(status)) {
+        return appendTo;
+    }
+    auto* df = dynamic_cast<const DecimalFormat*>(&getNumberFormatInternal());
+    if (df == nullptr) {
+        // Don't know how to handle other types of NumberFormat
+        status = U_UNSUPPORTED_ERROR;
+        return appendTo;
+    }
+    UFormattedNumberData result;
+    if (auto* lnf = df->toNumberFormatter(status)) {
+        result.quantity.setToDouble(measure.getNumber().getDouble(status));
+        lnf->unit(measure.getUnit())
+            .perUnit(perUnit)
+            .unitWidth(getUnitWidth(fWidth))
+            .formatImpl(&result, status);
+    }
+    DecimalFormat::fieldPositionHelper(result, pos, appendTo.length(), status);
+    appendTo.append(result.toTempString(status));
+    return appendTo;
+}
+
+UnicodeString &MeasureFormat::formatMeasures(
+        const Measure *measures,
+        int32_t measureCount,
+        UnicodeString &appendTo,
+        FieldPosition &pos,
+        UErrorCode &status) const {
+    if (U_FAILURE(status)) {
+        return appendTo;
+    }
+    if (measureCount == 0) {
+        return appendTo;
+    }
+    if (measureCount == 1) {
+        return formatMeasure(measures[0], **numberFormat, appendTo, pos, status);
+    }
+    if (fWidth == UMEASFMT_WIDTH_NUMERIC) {
+        Formattable hms[3];
+        int32_t bitMap = toHMS(measures, measureCount, hms, status);
+        if (bitMap > 0) {
+            return formatNumeric(hms, bitMap, appendTo, status);
+        }
+    }
+    if (pos.getField() != FieldPosition::DONT_CARE) {
+        return formatMeasuresSlowTrack(
+                measures, measureCount, appendTo, pos, status);
+    }
+    UnicodeString *results = new UnicodeString[measureCount];
+    if (results == nullptr) {
+        status = U_MEMORY_ALLOCATION_ERROR;
+        return appendTo;
+    }
+    for (int32_t i = 0; i < measureCount; ++i) {
+        const NumberFormat *nf = cache->getIntegerFormat();
+        if (i == measureCount - 1) {
+            nf = numberFormat->get();
+        }
+        formatMeasure(
+                measures[i],
+                *nf,
+                results[i],
+                pos,
+                status);
+    }
+    listFormatter->format(results, measureCount, appendTo, status);
+    delete [] results;
+    return appendTo;
+}
+
+UnicodeString MeasureFormat::getUnitDisplayName(const MeasureUnit& unit, UErrorCode& status) const {
+    return number::impl::LongNameHandler::getUnitDisplayName(
+        getLocale(status),
+        unit,
+        getUnitWidth(fWidth),
+        status);
+}
+
+void MeasureFormat::initMeasureFormat(
+        const Locale &locale,
+        UMeasureFormatWidth w,
+        NumberFormat *nfToAdopt,
+        UErrorCode &status) {
+    static const UListFormatterWidth listWidths[] = {
+        ULISTFMT_WIDTH_WIDE,
+        ULISTFMT_WIDTH_SHORT,
+        ULISTFMT_WIDTH_NARROW};
+    LocalPointer<NumberFormat> nf(nfToAdopt);
+    if (U_FAILURE(status)) {
+        return;
+    }
+    const char *name = locale.getName();
+    setLocaleIDs(name, name);
+
+    UnifiedCache::getByLocale(locale, cache, status);
+    if (U_FAILURE(status)) {
+        return;
+    }
+
+    const SharedPluralRules *pr = PluralRules::createSharedInstance(
+            locale, UPLURAL_TYPE_CARDINAL, status);
+    if (U_FAILURE(status)) {
+        return;
+    }
+    SharedObject::copyPtr(pr, pluralRules);
+    pr->removeRef();
+    if (nf.isNull()) {
+        // TODO: Clean this up
+        const SharedNumberFormat *shared = NumberFormat::createSharedInstance(
+                locale, UNUM_DECIMAL, status);
+        if (U_FAILURE(status)) {
+            return;
+        }
+        SharedObject::copyPtr(shared, numberFormat);
+        shared->removeRef();
+    } else {
+        adoptNumberFormat(nf.orphan(), status);
+        if (U_FAILURE(status)) {
+            return;
+        }
+    }
+    fWidth = w;
+    delete listFormatter;
+    listFormatter = ListFormatter::createInstance(
+            locale,
+            ULISTFMT_TYPE_UNITS,
+            listWidths[getRegularWidth(fWidth)],
+            status);
+}
+
+void MeasureFormat::adoptNumberFormat(
+        NumberFormat *nfToAdopt, UErrorCode &status) {
+    LocalPointer<NumberFormat> nf(nfToAdopt);
+    if (U_FAILURE(status)) {
+        return;
+    }
+    SharedNumberFormat *shared = new SharedNumberFormat(nf.getAlias());
+    if (shared == nullptr) {
+        status = U_MEMORY_ALLOCATION_ERROR;
+        return;
+    }
+    nf.orphan();
+    SharedObject::copyPtr(shared, numberFormat);
+}
+
+UBool MeasureFormat::setMeasureFormatLocale(const Locale &locale, UErrorCode &status) {
+    if (U_FAILURE(status) || locale == getLocale(status)) {
+        return false;
+    }
+    initMeasureFormat(locale, fWidth, nullptr, status);
+    return U_SUCCESS(status);
+} 
+
+const NumberFormat &MeasureFormat::getNumberFormatInternal() const {
+    return **numberFormat;
+}
+
+const NumberFormat &MeasureFormat::getCurrencyFormatInternal() const {
+    return *cache->getCurrencyFormat(UMEASFMT_WIDTH_NARROW);
+}
+
+const PluralRules &MeasureFormat::getPluralRules() const {
+    return **pluralRules;
+}
+
+Locale MeasureFormat::getLocale(UErrorCode &status) const {
+    return Format::getLocale(ULOC_VALID_LOCALE, status);
+}
+
+const char *MeasureFormat::getLocaleID(UErrorCode &status) const {
+    return Format::getLocaleID(ULOC_VALID_LOCALE, status);
+}
+
+UnicodeString &MeasureFormat::formatMeasure(
+        const Measure &measure,
+        const NumberFormat &nf,
+        UnicodeString &appendTo,
+        FieldPosition &pos,
+        UErrorCode &status) const {
+    if (U_FAILURE(status)) {
+        return appendTo;
+    }
+    const Formattable& amtNumber = measure.getNumber();
+    const MeasureUnit& amtUnit = measure.getUnit();
+    if (isCurrency(amtUnit)) {
+        char16_t isoCode[4];
+        u_charsToUChars(amtUnit.getSubtype(), isoCode, 4);
+        return cache->getCurrencyFormat(fWidth)->format(
+                new CurrencyAmount(amtNumber, isoCode, status),
+                appendTo,
+                pos,
+                status);
+    }
+    auto* df = dynamic_cast<const DecimalFormat*>(&nf);
+    if (df == nullptr) {
+        // Handle other types of NumberFormat using the ICU 63 code, modified to
+        // get the unitPattern from LongNameHandler and handle fallback to OTHER.
+        UnicodeString formattedNumber;
+        StandardPlural::Form pluralForm = QuantityFormatter::selectPlural(
+                amtNumber, nf, **pluralRules, formattedNumber, pos, status);
+        UnicodeString pattern = number::impl::LongNameHandler::getUnitPattern(getLocale(status),
+                amtUnit, getUnitWidth(fWidth), pluralForm, status);
+        // The above  handles fallback from other widths to short, and from other plural forms to OTHER
+        if (U_FAILURE(status)) {
+            return appendTo;
+        }
+        SimpleFormatter formatter(pattern, 0, 1, status);
+        return QuantityFormatter::format(formatter, formattedNumber, appendTo, pos, status);
+    }
+    UFormattedNumberData result;
+    if (auto* lnf = df->toNumberFormatter(status)) {
+        result.quantity.setToDouble(amtNumber.getDouble(status));
+        lnf->unit(amtUnit)
+            .unitWidth(getUnitWidth(fWidth))
+            .formatImpl(&result, status);
+    }
+    DecimalFormat::fieldPositionHelper(result, pos, appendTo.length(), status);
+    appendTo.append(result.toTempString(status));
+    return appendTo;
+}
+
+
+// Formats numeric time duration as 5:00:47 or 3:54.
+UnicodeString &MeasureFormat::formatNumeric(
+        const Formattable *hms,  // always length 3
+        int32_t bitMap,   // 1=hour set, 2=minute set, 4=second set
+        UnicodeString &appendTo,
+        UErrorCode &status) const {
+    if (U_FAILURE(status)) {
+        return appendTo;
+    }
+
+    UnicodeString pattern;
+
+    double hours = hms[0].getDouble(status);
+    double minutes = hms[1].getDouble(status);
+    double seconds = hms[2].getDouble(status);
+    if (U_FAILURE(status)) {
+        return appendTo;
+    }
+
+    // All possible combinations: "h", "m", "s", "hm", "hs", "ms", "hms"
+    if (bitMap == 5 || bitMap == 7) { // "hms" & "hs" (we add minutes if "hs")
+        pattern = cache->getNumericDateFormatters()->hourMinuteSecond;
+        hours = uprv_trunc(hours);
+        minutes = uprv_trunc(minutes);
+    } else if (bitMap == 3) { // "hm"
+        pattern = cache->getNumericDateFormatters()->hourMinute;
+        hours = uprv_trunc(hours);
+    } else if (bitMap == 6) { // "ms"
+        pattern = cache->getNumericDateFormatters()->minuteSecond;
+        minutes = uprv_trunc(minutes);
+    } else { // h m s, handled outside formatNumeric. No value is also an error.
+        status = U_INTERNAL_PROGRAM_ERROR;
+        return appendTo;
+    }
+
+    const DecimalFormat *numberFormatter = dynamic_cast<const DecimalFormat*>(numberFormat->get());
+    if (!numberFormatter) {
+        status = U_INTERNAL_PROGRAM_ERROR;
+        return appendTo;
+    }
+    number::LocalizedNumberFormatter numberFormatter2;
+    if (auto* lnf = numberFormatter->toNumberFormatter(status)) {
+        numberFormatter2 = lnf->integerWidth(number::IntegerWidth::zeroFillTo(2));
+    } else {
+        return appendTo;
+    }
+
+    FormattedStringBuilder fsb;
+
+    UBool protect = false;
+    const int32_t patternLength = pattern.length();
+    for (int32_t i = 0; i < patternLength; i++) {
+        char16_t c = pattern[i];
+
+        // Also set the proper field in this switch
+        // We don't use DateFormat.Field because this is not a date / time, is a duration.
+        double value = 0;
+        switch (c) {
+            case u'H': value = hours; break;
+            case u'm': value = minutes; break;
+            case u's': value = seconds; break;
+        }
+
+        // There is not enough info to add Field(s) for the unit because all we have are plain
+        // text patterns. For example in "21:51" there is no text for something like "hour",
+        // while in something like "21h51" there is ("h"). But we can't really tell...
+        switch (c) {
+            case u'H':
+            case u'm':
+            case u's':
+                if (protect) {
+                    fsb.appendChar16(c, kUndefinedField, status);
+                } else {
+                    UnicodeString tmp;
+                    if ((i + 1 < patternLength) && pattern[i + 1] == c) { // doubled
+                        tmp = numberFormatter2.formatDouble(value, status).toString(status);
+                        i++;
+                    } else {
+                        numberFormatter->format(value, tmp, status);
+                    }
+                    // TODO: Use proper Field
+                    fsb.append(tmp, kUndefinedField, status);
+                }
+                break;
+            case u'\'':
+                // '' is escaped apostrophe
+                if ((i + 1 < patternLength) && pattern[i + 1] == c) {
+                    fsb.appendChar16(c, kUndefinedField, status);
+                    i++;
+                } else {
+                    protect = !protect;
+                }
+                break;
+            default:
+                fsb.appendChar16(c, kUndefinedField, status);
+        }
+    }
+
+    appendTo.append(fsb.toTempUnicodeString());
+
+    return appendTo;
+}
+
+UnicodeString &MeasureFormat::formatMeasuresSlowTrack(
+        const Measure *measures,
+        int32_t measureCount,
+        UnicodeString& appendTo,
+        FieldPosition& pos,
+        UErrorCode& status) const {
+    if (U_FAILURE(status)) {
+        return appendTo;
+    }
+    FieldPosition dontCare(FieldPosition::DONT_CARE);
+    FieldPosition fpos(pos.getField());
+    LocalArray<UnicodeString> results(new UnicodeString[measureCount], status);
+    int32_t fieldPositionFoundIndex = -1;
+    for (int32_t i = 0; i < measureCount; ++i) {
+        const NumberFormat *nf = cache->getIntegerFormat();
+        if (i == measureCount - 1) {
+            nf = numberFormat->get();
+        }
+        if (fieldPositionFoundIndex == -1) {
+            formatMeasure(measures[i], *nf, results[i], fpos, status);
+            if (U_FAILURE(status)) {
+                return appendTo;
+            }
+            if (fpos.getBeginIndex() != 0 || fpos.getEndIndex() != 0) {
+                fieldPositionFoundIndex = i;
+            }
+        } else {
+            formatMeasure(measures[i], *nf, results[i], dontCare, status);
+        }
+    }
+    int32_t offset;
+    listFormatter->format(
+            results.getAlias(),
+            measureCount,
+            appendTo,
+            fieldPositionFoundIndex,
+            offset,
+            status);
+    if (U_FAILURE(status)) {
+        return appendTo;
+    }
+    // Fix up FieldPosition indexes if our field is found.
+    if (fieldPositionFoundIndex != -1 && offset != -1) {
+        pos.setBeginIndex(fpos.getBeginIndex() + offset);
+        pos.setEndIndex(fpos.getEndIndex() + offset);
+    }
+    return appendTo;
+}
+
+MeasureFormat* U_EXPORT2 MeasureFormat::createCurrencyFormat(const Locale& locale,
+                                                   UErrorCode& ec) {
+    if (U_FAILURE(ec)) {
+        return nullptr;
+    }
+    LocalPointer<CurrencyFormat> fmt(new CurrencyFormat(locale, ec), ec);
+    return fmt.orphan();
+}
+
+MeasureFormat* U_EXPORT2 MeasureFormat::createCurrencyFormat(UErrorCode& ec) {
+    if (U_FAILURE(ec)) {
+        return nullptr;
+    }
+    return MeasureFormat::createCurrencyFormat(Locale::getDefault(), ec);
+}
+
+U_NAMESPACE_END
+
+#endif /* #if !UCONFIG_NO_FORMATTING */