1 files changed, 255 insertions, 0 deletions
diff --git a/intl/icu/source/i18n/number_simple.cpp b/intl/icu/source/i18n/number_simple.cpp
new file mode 100644
index 0000000000..a2af6be42d
--- /dev/null
+++ b/intl/icu/source/i18n/number_simple.cpp
@@ -0,0 +1,255 @@
+// © 2017 and later: Unicode, Inc. and others.
+// License & terms of use: http://www.unicode.org/copyright.html
+
+#include "unicode/utypes.h"
+
+#if !UCONFIG_NO_FORMATTING
+
+#include "unicode/numberformatter.h"
+#include "unicode/simplenumberformatter.h"
+#include "number_formatimpl.h"
+#include "number_utils.h"
+#include "number_patternmodifier.h"
+#include "number_utypes.h"
+
+using namespace icu;
+using namespace icu::number;
+using namespace icu::number::impl;
+
+
+SimpleNumber
+SimpleNumber::forInt64(int64_t value, UErrorCode& status) {
+    if (U_FAILURE(status)) {
+        return SimpleNumber();
+    }
+    auto results = new UFormattedNumberData();
+    if (results == nullptr) {
+        status = U_MEMORY_ALLOCATION_ERROR;
+        return SimpleNumber();
+    }
+    results->quantity.setToLong(value);
+    return SimpleNumber(results, status);
+}
+
+SimpleNumber::SimpleNumber(UFormattedNumberData* data, UErrorCode& status) : fData(data) {
+    if (U_FAILURE(status)) {
+        return;
+    }
+    if (fData == nullptr) {
+        status = U_ILLEGAL_ARGUMENT_ERROR;
+        return;
+    }
+    if (fData->quantity.isNegative()) {
+        fSign = UNUM_SIMPLE_NUMBER_MINUS_SIGN;
+    } else {
+        fSign = UNUM_SIMPLE_NUMBER_NO_SIGN;
+    }
+}
+
+void SimpleNumber::cleanup() {
+    delete fData;
+    fData = nullptr;
+}
+
+void SimpleNumber::multiplyByPowerOfTen(int32_t power, UErrorCode& status) {
+    if (U_FAILURE(status)) {
+        return;
+    }
+    if (fData == nullptr) {
+        status = U_INVALID_STATE_ERROR;
+        return;
+    }
+    fData->quantity.adjustMagnitude(power);
+}
+
+void SimpleNumber::roundTo(int32_t position, UNumberFormatRoundingMode roundingMode, UErrorCode& status) {
+    if (U_FAILURE(status)) {
+        return;
+    }
+    if (fData == nullptr) {
+        status = U_INVALID_STATE_ERROR;
+        return;
+    }
+    fData->quantity.roundToMagnitude(position, roundingMode, status);
+}
+
+void SimpleNumber::setMinimumIntegerDigits(uint32_t position, UErrorCode& status) {
+    if (U_FAILURE(status)) {
+        return;
+    }
+    if (fData == nullptr) {
+        status = U_INVALID_STATE_ERROR;
+        return;
+    }
+    fData->quantity.setMinInteger(position);
+}
+
+void SimpleNumber::setMinimumFractionDigits(uint32_t position, UErrorCode& status) {
+    if (U_FAILURE(status)) {
+        return;
+    }
+    if (fData == nullptr) {
+        status = U_INVALID_STATE_ERROR;
+        return;
+    }
+    fData->quantity.setMinFraction(position);
+}
+
+void SimpleNumber::truncateStart(uint32_t position, UErrorCode& status) {
+    if (U_FAILURE(status)) {
+        return;
+    }
+    if (fData == nullptr) {
+        status = U_INVALID_STATE_ERROR;
+        return;
+    }
+    fData->quantity.applyMaxInteger(position);
+}
+
+void SimpleNumber::setSign(USimpleNumberSign sign, UErrorCode& status) {
+    if (U_FAILURE(status)) {
+        return;
+    }
+    if (fData == nullptr) {
+        status = U_INVALID_STATE_ERROR;
+        return;
+    }
+    fSign = sign;
+}
+
+
+void SimpleNumberFormatter::cleanup() {
+    delete fOwnedSymbols;
+    delete fMicros;
+    delete fPatternModifier;
+    fOwnedSymbols = nullptr;
+    fMicros = nullptr;
+    fPatternModifier = nullptr;
+}
+
+SimpleNumberFormatter SimpleNumberFormatter::forLocale(const icu::Locale &locale, UErrorCode &status) {
+    return SimpleNumberFormatter::forLocaleAndGroupingStrategy(locale, UNUM_GROUPING_AUTO, status);
+}
+
+SimpleNumberFormatter SimpleNumberFormatter::forLocaleAndGroupingStrategy(
+        const icu::Locale &locale,
+        UNumberGroupingStrategy groupingStrategy,
+        UErrorCode &status) {
+    SimpleNumberFormatter retval;
+    retval.fOwnedSymbols = new DecimalFormatSymbols(locale, status);
+    if (U_FAILURE(status)) {
+        return retval;
+    }
+    if (retval.fOwnedSymbols == nullptr) {
+        status = U_MEMORY_ALLOCATION_ERROR;
+        return retval;
+    }
+    retval.initialize(locale, *retval.fOwnedSymbols, groupingStrategy, status);
+    return retval;
+}
+
+
+SimpleNumberFormatter SimpleNumberFormatter::forLocaleAndSymbolsAndGroupingStrategy(
+        const icu::Locale &locale,
+        const DecimalFormatSymbols &symbols,
+        UNumberGroupingStrategy groupingStrategy,
+        UErrorCode &status) {
+    SimpleNumberFormatter retval;
+    retval.initialize(locale, symbols, groupingStrategy, status);
+    return retval;
+}
+
+
+void SimpleNumberFormatter::initialize(
+        const icu::Locale &locale,
+        const DecimalFormatSymbols &symbols,
+        UNumberGroupingStrategy groupingStrategy,
+        UErrorCode &status) {
+    if (U_FAILURE(status)) {
+        return;
+    }
+
+    fMicros = new SimpleMicroProps();
+    if (fMicros == nullptr) {
+        status = U_MEMORY_ALLOCATION_ERROR;
+        return;
+    }
+    fMicros->symbols = &symbols;
+
+    auto pattern = utils::getPatternForStyle(
+        locale,
+        symbols.getNumberingSystemName(),
+        CLDR_PATTERN_STYLE_DECIMAL,
+        status);
+    if (U_FAILURE(status)) {
+        return;
+    }
+
+    ParsedPatternInfo patternInfo;
+    PatternParser::parseToPatternInfo(UnicodeString(pattern), patternInfo, status);
+    if (U_FAILURE(status)) {
+        return;
+    }
+
+    auto grouper = Grouper::forStrategy(groupingStrategy);
+    grouper.setLocaleData(patternInfo, locale);
+    fMicros->grouping = grouper;
+
+    MutablePatternModifier patternModifier(false);
+    patternModifier.setPatternInfo(&patternInfo, kUndefinedField);
+    patternModifier.setPatternAttributes(UNUM_SIGN_EXCEPT_ZERO, false, false);
+    patternModifier.setSymbols(fMicros->symbols, {}, UNUM_UNIT_WIDTH_SHORT, nullptr, status);
+
+    fPatternModifier = new AdoptingSignumModifierStore(patternModifier.createImmutableForPlural(StandardPlural::COUNT, status));
+
+    fGroupingStrategy = groupingStrategy;
+    return;
+}
+
+FormattedNumber SimpleNumberFormatter::format(SimpleNumber value, UErrorCode &status) const {
+    formatImpl(value.fData, value.fSign, status);
+
+    // Do not save the results object if we encountered a failure.
+    if (U_SUCCESS(status)) {
+        auto temp = value.fData;
+        value.fData = nullptr;
+        return FormattedNumber(temp);
+    } else {
+        return FormattedNumber(status);
+    }
+}
+
+void SimpleNumberFormatter::formatImpl(UFormattedNumberData* data, USimpleNumberSign sign, UErrorCode &status) const {
+    if (U_FAILURE(status)) {
+        return;
+    }
+    if (data == nullptr) {
+        status = U_ILLEGAL_ARGUMENT_ERROR;
+        return;
+    }
+    if (fPatternModifier == nullptr || fMicros == nullptr) {
+        status = U_INVALID_STATE_ERROR;
+        return;
+    }
+
+    Signum signum;
+    if (sign == UNUM_SIMPLE_NUMBER_MINUS_SIGN) {
+        signum = SIGNUM_NEG;
+    } else if (sign == UNUM_SIMPLE_NUMBER_PLUS_SIGN) {
+        signum = SIGNUM_POS;
+    } else {
+        signum = SIGNUM_POS_ZERO;
+    }
+
+    const Modifier* modifier = (*fPatternModifier)[signum];
+    auto length = NumberFormatterImpl::writeNumber(
+        *fMicros,
+        data->quantity,
+        data->getStringRef(),
+        0,
+        status);
+    length += modifier->apply(data->getStringRef(), 0, length, status);
+    data->getStringRef().writeTerminator(status);
+}
+
+#endif /* #if !UCONFIG_NO_FORMATTING */