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// © 2018 and later: Unicode, Inc. and others.
#include "unicode/utypes.h"
#if !UCONFIG_NO_FORMATTING
// Allow implicit conversion from char16_t* to UnicodeString for this file:
// Helpful in toString methods and elsewhere.
#define UNISTR_FROM_STRING_EXPLICIT
#include <cmath>
#include <cstdlib>
#include <stdlib.h>
#include "unicode/errorcode.h"
#include "unicode/decimfmt.h"
#include "number_decimalquantity.h"
#include "number_types.h"
#include "numparse_impl.h"
#include "number_mapper.h"
#include "number_patternstring.h"
#include "putilimp.h"
#include "number_utils.h"
#include "number_utypes.h"
using namespace icu;
using namespace icu::number;
using namespace icu::number::impl;
using namespace icu::numparse;
using namespace icu::numparse::impl;
using ERoundingMode = icu::DecimalFormat::ERoundingMode;
using EPadPosition = icu::DecimalFormat::EPadPosition;
// MSVC VS2015 warns C4805 when comparing bool with UBool, VS2017 no longer emits this warning.
// TODO: Move this macro into a better place?
#if U_PF_WINDOWS <= U_PLATFORM && U_PLATFORM <= U_PF_CYGWIN
#define UBOOL_TO_BOOL(b) static_cast<bool>(b)
#else
#define UBOOL_TO_BOOL(b) b
#endif
UOBJECT_DEFINE_RTTI_IMPLEMENTATION(DecimalFormat)
DecimalFormat::DecimalFormat(UErrorCode& status)
: DecimalFormat(nullptr, status) {
if (U_FAILURE(status)) { return; }
// Use the default locale and decimal pattern.
const char* localeName = Locale::getDefault().getName();
LocalPointer<NumberingSystem> ns(NumberingSystem::createInstance(status));
UnicodeString patternString = utils::getPatternForStyle(
localeName,
ns->getName(),
CLDR_PATTERN_STYLE_DECIMAL,
status);
setPropertiesFromPattern(patternString, IGNORE_ROUNDING_IF_CURRENCY, status);
touch(status);
}
DecimalFormat::DecimalFormat(const UnicodeString& pattern, UErrorCode& status)
: DecimalFormat(nullptr, status) {
if (U_FAILURE(status)) { return; }
setPropertiesFromPattern(pattern, IGNORE_ROUNDING_IF_CURRENCY, status);
touch(status);
}
DecimalFormat::DecimalFormat(const UnicodeString& pattern, DecimalFormatSymbols* symbolsToAdopt,
UErrorCode& status)
: DecimalFormat(symbolsToAdopt, status) {
if (U_FAILURE(status)) { return; }
setPropertiesFromPattern(pattern, IGNORE_ROUNDING_IF_CURRENCY, status);
touch(status);
}
DecimalFormat::DecimalFormat(const UnicodeString& pattern, DecimalFormatSymbols* symbolsToAdopt,
UNumberFormatStyle style, UErrorCode& status)
: DecimalFormat(symbolsToAdopt, status) {
if (U_FAILURE(status)) { return; }
// If choice is a currency type, ignore the rounding information.
if (style == UNumberFormatStyle::UNUM_CURRENCY ||
style == UNumberFormatStyle::UNUM_CURRENCY_ISO ||
style == UNumberFormatStyle::UNUM_CURRENCY_ACCOUNTING ||
style == UNumberFormatStyle::UNUM_CASH_CURRENCY ||
style == UNumberFormatStyle::UNUM_CURRENCY_STANDARD ||
style == UNumberFormatStyle::UNUM_CURRENCY_PLURAL) {
setPropertiesFromPattern(pattern, IGNORE_ROUNDING_ALWAYS, status);
} else {
setPropertiesFromPattern(pattern, IGNORE_ROUNDING_IF_CURRENCY, status);
}
// Note: in Java, CurrencyPluralInfo is set in NumberFormat.java, but in C++, it is not set there,
// so we have to set it here.
if (style == UNumberFormatStyle::UNUM_CURRENCY_PLURAL) {
LocalPointer<CurrencyPluralInfo> cpi(
new CurrencyPluralInfo(fields->symbols->getLocale(), status),
status);
if (U_FAILURE(status)) { return; }
fields->properties.currencyPluralInfo.fPtr.adoptInstead(cpi.orphan());
}
touch(status);
}
DecimalFormat::DecimalFormat(const DecimalFormatSymbols* symbolsToAdopt, UErrorCode& status) {
// we must take ownership of symbolsToAdopt, even in a failure case.
LocalPointer<const DecimalFormatSymbols> adoptedSymbols(symbolsToAdopt);
if (U_FAILURE(status)) {
return;
}
fields = new DecimalFormatFields();
if (fields == nullptr) {
status = U_MEMORY_ALLOCATION_ERROR;
return;
}
if (adoptedSymbols.isNull()) {
fields->symbols.adoptInsteadAndCheckErrorCode(new DecimalFormatSymbols(status), status);
} else {
fields->symbols.adoptInsteadAndCheckErrorCode(adoptedSymbols.orphan(), status);
}
if (U_FAILURE(status)) {
delete fields;
fields = nullptr;
}
}
#if UCONFIG_HAVE_PARSEALLINPUT
void DecimalFormat::setParseAllInput(UNumberFormatAttributeValue value) {
if (fields == nullptr) { return; }
if (value == fields->properties.parseAllInput) { return; }
fields->properties.parseAllInput = value;
}
#endif
DecimalFormat&
DecimalFormat::setAttribute(UNumberFormatAttribute attr, int32_t newValue, UErrorCode& status) {
if (U_FAILURE(status)) { return *this; }
if (fields == nullptr) {
// We only get here if an OOM error happened during construction, copy construction, assignment, or modification.
status = U_MEMORY_ALLOCATION_ERROR;
return *this;
}
switch (attr) {
case UNUM_LENIENT_PARSE:
setLenient(newValue != 0);
break;
case UNUM_PARSE_INT_ONLY:
setParseIntegerOnly(newValue != 0);
break;
case UNUM_GROUPING_USED:
setGroupingUsed(newValue != 0);
break;
case UNUM_DECIMAL_ALWAYS_SHOWN:
setDecimalSeparatorAlwaysShown(newValue != 0);
break;
case UNUM_MAX_INTEGER_DIGITS:
setMaximumIntegerDigits(newValue);
break;
case UNUM_MIN_INTEGER_DIGITS:
setMinimumIntegerDigits(newValue);
break;
case UNUM_INTEGER_DIGITS:
setMinimumIntegerDigits(newValue);
setMaximumIntegerDigits(newValue);
break;
case UNUM_MAX_FRACTION_DIGITS:
setMaximumFractionDigits(newValue);
break;
case UNUM_MIN_FRACTION_DIGITS:
setMinimumFractionDigits(newValue);
break;
case UNUM_FRACTION_DIGITS:
setMinimumFractionDigits(newValue);
setMaximumFractionDigits(newValue);
break;
case UNUM_SIGNIFICANT_DIGITS_USED:
setSignificantDigitsUsed(newValue != 0);
break;
case UNUM_MAX_SIGNIFICANT_DIGITS:
setMaximumSignificantDigits(newValue);
break;
case UNUM_MIN_SIGNIFICANT_DIGITS:
setMinimumSignificantDigits(newValue);
break;
case UNUM_MULTIPLIER:
setMultiplier(newValue);
break;
case UNUM_SCALE:
setMultiplierScale(newValue);
break;
case UNUM_GROUPING_SIZE:
setGroupingSize(newValue);
break;
case UNUM_ROUNDING_MODE:
setRoundingMode((DecimalFormat::ERoundingMode) newValue);
break;
case UNUM_FORMAT_WIDTH:
setFormatWidth(newValue);
break;
case UNUM_PADDING_POSITION:
/** The position at which padding will take place. */
setPadPosition((DecimalFormat::EPadPosition) newValue);
break;
case UNUM_SECONDARY_GROUPING_SIZE:
setSecondaryGroupingSize(newValue);
break;
#if UCONFIG_HAVE_PARSEALLINPUT
case UNUM_PARSE_ALL_INPUT:
setParseAllInput((UNumberFormatAttributeValue) newValue);
break;
#endif
case UNUM_PARSE_NO_EXPONENT:
setParseNoExponent((UBool) newValue);
break;
case UNUM_PARSE_DECIMAL_MARK_REQUIRED:
setDecimalPatternMatchRequired((UBool) newValue);
break;
case UNUM_CURRENCY_USAGE:
setCurrencyUsage((UCurrencyUsage) newValue, &status);
break;
case UNUM_MINIMUM_GROUPING_DIGITS:
setMinimumGroupingDigits(newValue);
break;
case UNUM_PARSE_CASE_SENSITIVE:
setParseCaseSensitive(static_cast<UBool>(newValue));
break;
case UNUM_SIGN_ALWAYS_SHOWN:
setSignAlwaysShown(static_cast<UBool>(newValue));
break;
case UNUM_FORMAT_FAIL_IF_MORE_THAN_MAX_DIGITS:
setFormatFailIfMoreThanMaxDigits(static_cast<UBool>(newValue));
break;
default:
status = U_UNSUPPORTED_ERROR;
break;
}
return *this;
}
int32_t DecimalFormat::getAttribute(UNumberFormatAttribute attr, UErrorCode& status) const {
if (U_FAILURE(status)) { return -1; }
if (fields == nullptr) {
// We only get here if an OOM error happened during construction, copy construction, assignment, or modification.
status = U_MEMORY_ALLOCATION_ERROR;
return -1;
}
switch (attr) {
case UNUM_LENIENT_PARSE:
return isLenient();
case UNUM_PARSE_INT_ONLY:
return isParseIntegerOnly();
case UNUM_GROUPING_USED:
return isGroupingUsed();
case UNUM_DECIMAL_ALWAYS_SHOWN:
return isDecimalSeparatorAlwaysShown();
case UNUM_MAX_INTEGER_DIGITS:
return getMaximumIntegerDigits();
case UNUM_MIN_INTEGER_DIGITS:
return getMinimumIntegerDigits();
case UNUM_INTEGER_DIGITS:
// TBD: what should this return?
return getMinimumIntegerDigits();
case UNUM_MAX_FRACTION_DIGITS:
return getMaximumFractionDigits();
case UNUM_MIN_FRACTION_DIGITS:
return getMinimumFractionDigits();
case UNUM_FRACTION_DIGITS:
// TBD: what should this return?
return getMinimumFractionDigits();
case UNUM_SIGNIFICANT_DIGITS_USED:
return areSignificantDigitsUsed();
case UNUM_MAX_SIGNIFICANT_DIGITS:
return getMaximumSignificantDigits();
case UNUM_MIN_SIGNIFICANT_DIGITS:
return getMinimumSignificantDigits();
case UNUM_MULTIPLIER:
return getMultiplier();
case UNUM_SCALE:
return getMultiplierScale();
case UNUM_GROUPING_SIZE:
return getGroupingSize();
case UNUM_ROUNDING_MODE:
return getRoundingMode();
case UNUM_FORMAT_WIDTH:
return getFormatWidth();
case UNUM_PADDING_POSITION:
return getPadPosition();
case UNUM_SECONDARY_GROUPING_SIZE:
return getSecondaryGroupingSize();
case UNUM_PARSE_NO_EXPONENT:
return isParseNoExponent();
case UNUM_PARSE_DECIMAL_MARK_REQUIRED:
return isDecimalPatternMatchRequired();
case UNUM_CURRENCY_USAGE:
return getCurrencyUsage();
case UNUM_MINIMUM_GROUPING_DIGITS:
return getMinimumGroupingDigits();
case UNUM_PARSE_CASE_SENSITIVE:
return isParseCaseSensitive();
case UNUM_SIGN_ALWAYS_SHOWN:
return isSignAlwaysShown();
case UNUM_FORMAT_FAIL_IF_MORE_THAN_MAX_DIGITS:
return isFormatFailIfMoreThanMaxDigits();
default:
status = U_UNSUPPORTED_ERROR;
break;
}
return -1; /* undefined */
}
void DecimalFormat::setGroupingUsed(UBool enabled) {
if (fields == nullptr) {
return;
}
if (UBOOL_TO_BOOL(enabled) == fields->properties.groupingUsed) { return; }
NumberFormat::setGroupingUsed(enabled); // to set field for compatibility
fields->properties.groupingUsed = enabled;
touchNoError();
}
void DecimalFormat::setParseIntegerOnly(UBool value) {
if (fields == nullptr) {
return;
}
if (UBOOL_TO_BOOL(value) == fields->properties.parseIntegerOnly) { return; }
NumberFormat::setParseIntegerOnly(value); // to set field for compatibility
fields->properties.parseIntegerOnly = value;
touchNoError();
}
void DecimalFormat::setLenient(UBool enable) {
if (fields == nullptr) {
return;
}
ParseMode mode = enable ? PARSE_MODE_LENIENT : PARSE_MODE_STRICT;
if (!fields->properties.parseMode.isNull() && mode == fields->properties.parseMode.getNoError()) { return; }
NumberFormat::setLenient(enable); // to set field for compatibility
fields->properties.parseMode = mode;
touchNoError();
}
DecimalFormat::DecimalFormat(const UnicodeString& pattern, DecimalFormatSymbols* symbolsToAdopt,
UParseError&, UErrorCode& status)
: DecimalFormat(symbolsToAdopt, status) {
if (U_FAILURE(status)) { return; }
// TODO: What is parseError for?
setPropertiesFromPattern(pattern, IGNORE_ROUNDING_IF_CURRENCY, status);
touch(status);
}
DecimalFormat::DecimalFormat(const UnicodeString& pattern, const DecimalFormatSymbols& symbols,
UErrorCode& status)
: DecimalFormat(nullptr, status) {
if (U_FAILURE(status)) { return; }
LocalPointer<DecimalFormatSymbols> dfs(new DecimalFormatSymbols(symbols), status);
if (U_FAILURE(status)) {
// If we failed to allocate DecimalFormatSymbols, then release fields and its members.
// We must have a fully complete fields object, we cannot have partially populated members.
delete fields;
fields = nullptr;
status = U_MEMORY_ALLOCATION_ERROR;
return;
}
fields->symbols.adoptInstead(dfs.orphan());
setPropertiesFromPattern(pattern, IGNORE_ROUNDING_IF_CURRENCY, status);
touch(status);
}
DecimalFormat::DecimalFormat(const DecimalFormat& source) : NumberFormat(source) {
// If the object that we are copying from is invalid, no point in going further.
if (source.fields == nullptr) {
return;
}
// Note: it is not safe to copy fields->formatter or fWarehouse directly because fields->formatter might have
// dangling pointers to fields inside fWarehouse. The safe thing is to re-construct fields->formatter from
// the property bag, despite being somewhat slower.
fields = new DecimalFormatFields(source.fields->properties);
if (fields == nullptr) {
return; // no way to report an error.
}
UErrorCode status = U_ZERO_ERROR;
fields->symbols.adoptInsteadAndCheckErrorCode(new DecimalFormatSymbols(*source.getDecimalFormatSymbols()), status);
// In order to simplify error handling logic in the various getters/setters/etc, we do not allow
// any partially populated DecimalFormatFields object. We must have a fully complete fields object
// or else we set it to nullptr.
if (U_FAILURE(status)) {
delete fields;
fields = nullptr;
return;
}
touch(status);
}
DecimalFormat& DecimalFormat::operator=(const DecimalFormat& rhs) {
// guard against self-assignment
if (this == &rhs) {
return *this;
}
// Make sure both objects are valid.
if (fields == nullptr || rhs.fields == nullptr) {
return *this; // unfortunately, no way to report an error.
}
fields->properties = rhs.fields->properties;
fields->exportedProperties.clear();
UErrorCode status = U_ZERO_ERROR;
LocalPointer<DecimalFormatSymbols> dfs(new DecimalFormatSymbols(*rhs.getDecimalFormatSymbols()), status);
if (U_FAILURE(status)) {
// We failed to allocate DecimalFormatSymbols, release fields and its members.
// We must have a fully complete fields object, we cannot have partially populated members.
delete fields;
fields = nullptr;
return *this;
}
fields->symbols.adoptInstead(dfs.orphan());
touch(status);
return *this;
}
DecimalFormat::~DecimalFormat() {
if (fields == nullptr) { return; }
#ifndef __wasi__
delete fields->atomicParser.exchange(nullptr);
delete fields->atomicCurrencyParser.exchange(nullptr);
#else
delete fields->atomicParser;
delete fields->atomicCurrencyParser;
#endif
delete fields;
}
DecimalFormat* DecimalFormat::clone() const {
// can only clone valid objects.
if (fields == nullptr) {
return nullptr;
}
LocalPointer<DecimalFormat> df(new DecimalFormat(*this));
if (df.isValid() && df->fields != nullptr) {
return df.orphan();
}
return nullptr;
}
bool DecimalFormat::operator==(const Format& other) const {
auto* otherDF = dynamic_cast<const DecimalFormat*>(&other);
if (otherDF == nullptr) {
return false;
}
// If either object is in an invalid state, prevent dereferencing nullptr below.
// Additionally, invalid objects should not be considered equal to anything.
if (fields == nullptr || otherDF->fields == nullptr) {
return false;
}
return fields->properties == otherDF->fields->properties && *getDecimalFormatSymbols() == *otherDF->getDecimalFormatSymbols();
}
UnicodeString& DecimalFormat::format(double number, UnicodeString& appendTo, FieldPosition& pos) const {
if (fields == nullptr) {
appendTo.setToBogus();
return appendTo;
}
if (pos.getField() == FieldPosition::DONT_CARE && fastFormatDouble(number, appendTo)) {
return appendTo;
}
UErrorCode localStatus = U_ZERO_ERROR;
UFormattedNumberData output;
output.quantity.setToDouble(number);
fields->formatter.formatImpl(&output, localStatus);
fieldPositionHelper(output, pos, appendTo.length(), localStatus);
auto appendable = UnicodeStringAppendable(appendTo);
output.appendTo(appendable, localStatus);
return appendTo;
}
UnicodeString& DecimalFormat::format(double number, UnicodeString& appendTo, FieldPosition& pos,
UErrorCode& status) const {
if (U_FAILURE(status)) {
return appendTo; // don't overwrite status if it's already a failure.
}
if (fields == nullptr) {
// We only get here if an OOM error happened during construction, copy construction, assignment, or modification.
status = U_MEMORY_ALLOCATION_ERROR;
appendTo.setToBogus();
return appendTo;
}
if (pos.getField() == FieldPosition::DONT_CARE && fastFormatDouble(number, appendTo)) {
return appendTo;
}
UFormattedNumberData output;
output.quantity.setToDouble(number);
fields->formatter.formatImpl(&output, status);
fieldPositionHelper(output, pos, appendTo.length(), status);
auto appendable = UnicodeStringAppendable(appendTo);
output.appendTo(appendable, status);
return appendTo;
}
UnicodeString&
DecimalFormat::format(double number, UnicodeString& appendTo, FieldPositionIterator* posIter,
UErrorCode& status) const {
if (U_FAILURE(status)) {
return appendTo; // don't overwrite status if it's already a failure.
}
if (fields == nullptr) {
// We only get here if an OOM error happened during construction, copy construction, assignment, or modification.
status = U_MEMORY_ALLOCATION_ERROR;
appendTo.setToBogus();
return appendTo;
}
if (posIter == nullptr && fastFormatDouble(number, appendTo)) {
return appendTo;
}
UFormattedNumberData output;
output.quantity.setToDouble(number);
fields->formatter.formatImpl(&output, status);
fieldPositionIteratorHelper(output, posIter, appendTo.length(), status);
auto appendable = UnicodeStringAppendable(appendTo);
output.appendTo(appendable, status);
return appendTo;
}
UnicodeString& DecimalFormat::format(int32_t number, UnicodeString& appendTo, FieldPosition& pos) const {
return format(static_cast<int64_t> (number), appendTo, pos);
}
UnicodeString& DecimalFormat::format(int32_t number, UnicodeString& appendTo, FieldPosition& pos,
UErrorCode& status) const {
return format(static_cast<int64_t> (number), appendTo, pos, status);
}
UnicodeString&
DecimalFormat::format(int32_t number, UnicodeString& appendTo, FieldPositionIterator* posIter,
UErrorCode& status) const {
return format(static_cast<int64_t> (number), appendTo, posIter, status);
}
UnicodeString& DecimalFormat::format(int64_t number, UnicodeString& appendTo, FieldPosition& pos) const {
if (fields == nullptr) {
appendTo.setToBogus();
return appendTo;
}
if (pos.getField() == FieldPosition::DONT_CARE && fastFormatInt64(number, appendTo)) {
return appendTo;
}
UErrorCode localStatus = U_ZERO_ERROR;
UFormattedNumberData output;
output.quantity.setToLong(number);
fields->formatter.formatImpl(&output, localStatus);
fieldPositionHelper(output, pos, appendTo.length(), localStatus);
auto appendable = UnicodeStringAppendable(appendTo);
output.appendTo(appendable, localStatus);
return appendTo;
}
UnicodeString& DecimalFormat::format(int64_t number, UnicodeString& appendTo, FieldPosition& pos,
UErrorCode& status) const {
if (U_FAILURE(status)) {
return appendTo; // don't overwrite status if it's already a failure.
}
if (fields == nullptr) {
// We only get here if an OOM error happened during construction, copy construction, assignment, or modification.
status = U_MEMORY_ALLOCATION_ERROR;
appendTo.setToBogus();
return appendTo;
}
if (pos.getField() == FieldPosition::DONT_CARE && fastFormatInt64(number, appendTo)) {
return appendTo;
}
UFormattedNumberData output;
output.quantity.setToLong(number);
fields->formatter.formatImpl(&output, status);
fieldPositionHelper(output, pos, appendTo.length(), status);
auto appendable = UnicodeStringAppendable(appendTo);
output.appendTo(appendable, status);
return appendTo;
}
UnicodeString&
DecimalFormat::format(int64_t number, UnicodeString& appendTo, FieldPositionIterator* posIter,
UErrorCode& status) const {
if (U_FAILURE(status)) {
return appendTo; // don't overwrite status if it's already a failure.
}
if (fields == nullptr) {
// We only get here if an OOM error happened during construction, copy construction, assignment, or modification.
status = U_MEMORY_ALLOCATION_ERROR;
appendTo.setToBogus();
return appendTo;
}
if (posIter == nullptr && fastFormatInt64(number, appendTo)) {
return appendTo;
}
UFormattedNumberData output;
output.quantity.setToLong(number);
fields->formatter.formatImpl(&output, status);
fieldPositionIteratorHelper(output, posIter, appendTo.length(), status);
auto appendable = UnicodeStringAppendable(appendTo);
output.appendTo(appendable, status);
return appendTo;
}
UnicodeString&
DecimalFormat::format(StringPiece number, UnicodeString& appendTo, FieldPositionIterator* posIter,
UErrorCode& status) const {
if (U_FAILURE(status)) {
return appendTo; // don't overwrite status if it's already a failure.
}
if (fields == nullptr) {
// We only get here if an OOM error happened during construction, copy construction, assignment, or modification.
status = U_MEMORY_ALLOCATION_ERROR;
appendTo.setToBogus();
return appendTo;
}
UFormattedNumberData output;
output.quantity.setToDecNumber(number, status);
fields->formatter.formatImpl(&output, status);
fieldPositionIteratorHelper(output, posIter, appendTo.length(), status);
auto appendable = UnicodeStringAppendable(appendTo);
output.appendTo(appendable, status);
return appendTo;
}
UnicodeString& DecimalFormat::format(const DecimalQuantity& number, UnicodeString& appendTo,
FieldPositionIterator* posIter, UErrorCode& status) const {
if (U_FAILURE(status)) {
return appendTo; // don't overwrite status if it's already a failure.
}
if (fields == nullptr) {
// We only get here if an OOM error happened during construction, copy construction, assignment, or modification.
status = U_MEMORY_ALLOCATION_ERROR;
appendTo.setToBogus();
return appendTo;
}
UFormattedNumberData output;
output.quantity = number;
fields->formatter.formatImpl(&output, status);
fieldPositionIteratorHelper(output, posIter, appendTo.length(), status);
auto appendable = UnicodeStringAppendable(appendTo);
output.appendTo(appendable, status);
return appendTo;
}
UnicodeString&
DecimalFormat::format(const DecimalQuantity& number, UnicodeString& appendTo, FieldPosition& pos,
UErrorCode& status) const {
if (U_FAILURE(status)) {
return appendTo; // don't overwrite status if it's already a failure.
}
if (fields == nullptr) {
// We only get here if an OOM error happened during construction, copy construction, assignment, or modification.
status = U_MEMORY_ALLOCATION_ERROR;
appendTo.setToBogus();
return appendTo;
}
UFormattedNumberData output;
output.quantity = number;
fields->formatter.formatImpl(&output, status);
fieldPositionHelper(output, pos, appendTo.length(), status);
auto appendable = UnicodeStringAppendable(appendTo);
output.appendTo(appendable, status);
return appendTo;
}
void DecimalFormat::parse(const UnicodeString& text, Formattable& output,
ParsePosition& parsePosition) const {
if (fields == nullptr) {
return;
}
if (parsePosition.getIndex() < 0 || parsePosition.getIndex() >= text.length()) {
if (parsePosition.getIndex() == text.length()) {
// If there is nothing to parse, it is an error
parsePosition.setErrorIndex(parsePosition.getIndex());
}
return;
}
ErrorCode status;
ParsedNumber result;
// Note: if this is a currency instance, currencies will be matched despite the fact that we are not in the
// parseCurrency method (backwards compatibility)
int32_t startIndex = parsePosition.getIndex();
const NumberParserImpl* parser = getParser(status);
if (U_FAILURE(status)) {
return; // unfortunately no way to report back the error.
}
parser->parse(text, startIndex, true, result, status);
if (U_FAILURE(status)) {
return; // unfortunately no way to report back the error.
}
// TODO: Do we need to check for fImpl->properties->parseAllInput (UCONFIG_HAVE_PARSEALLINPUT) here?
if (result.success()) {
parsePosition.setIndex(result.charEnd);
result.populateFormattable(output, parser->getParseFlags());
} else {
parsePosition.setErrorIndex(startIndex + result.charEnd);
}
}
CurrencyAmount* DecimalFormat::parseCurrency(const UnicodeString& text, ParsePosition& parsePosition) const {
if (fields == nullptr) {
return nullptr;
}
if (parsePosition.getIndex() < 0 || parsePosition.getIndex() >= text.length()) {
return nullptr;
}
ErrorCode status;
ParsedNumber result;
// Note: if this is a currency instance, currencies will be matched despite the fact that we are not in the
// parseCurrency method (backwards compatibility)
int32_t startIndex = parsePosition.getIndex();
const NumberParserImpl* parser = getCurrencyParser(status);
if (U_FAILURE(status)) {
return nullptr;
}
parser->parse(text, startIndex, true, result, status);
if (U_FAILURE(status)) {
return nullptr;
}
// TODO: Do we need to check for fImpl->properties->parseAllInput (UCONFIG_HAVE_PARSEALLINPUT) here?
if (result.success()) {
parsePosition.setIndex(result.charEnd);
Formattable formattable;
result.populateFormattable(formattable, parser->getParseFlags());
LocalPointer<CurrencyAmount> currencyAmount(
new CurrencyAmount(formattable, result.currencyCode, status), status);
if (U_FAILURE(status)) {
return nullptr;
}
return currencyAmount.orphan();
} else {
parsePosition.setErrorIndex(startIndex + result.charEnd);
return nullptr;
}
}
const DecimalFormatSymbols* DecimalFormat::getDecimalFormatSymbols() const {
if (fields == nullptr) {
return nullptr;
}
if (!fields->symbols.isNull()) {
return fields->symbols.getAlias();
} else {
return fields->formatter.getDecimalFormatSymbols();
}
}
void DecimalFormat::adoptDecimalFormatSymbols(DecimalFormatSymbols* symbolsToAdopt) {
if (symbolsToAdopt == nullptr) {
return; // do not allow caller to set fields->symbols to nullptr
}
// we must take ownership of symbolsToAdopt, even in a failure case.
LocalPointer<DecimalFormatSymbols> dfs(symbolsToAdopt);
if (fields == nullptr) {
return;
}
fields->symbols.adoptInstead(dfs.orphan());
touchNoError();
}
void DecimalFormat::setDecimalFormatSymbols(const DecimalFormatSymbols& symbols) {
if (fields == nullptr) {
return;
}
UErrorCode status = U_ZERO_ERROR;
LocalPointer<DecimalFormatSymbols> dfs(new DecimalFormatSymbols(symbols), status);
if (U_FAILURE(status)) {
// We failed to allocate DecimalFormatSymbols, release fields and its members.
// We must have a fully complete fields object, we cannot have partially populated members.
delete fields;
fields = nullptr;
return;
}
fields->symbols.adoptInstead(dfs.orphan());
touchNoError();
}
const CurrencyPluralInfo* DecimalFormat::getCurrencyPluralInfo() const {
if (fields == nullptr) {
return nullptr;
}
return fields->properties.currencyPluralInfo.fPtr.getAlias();
}
void DecimalFormat::adoptCurrencyPluralInfo(CurrencyPluralInfo* toAdopt) {
// TODO: should we guard against nullptr input, like in adoptDecimalFormatSymbols?
// we must take ownership of toAdopt, even in a failure case.
LocalPointer<CurrencyPluralInfo> cpi(toAdopt);
if (fields == nullptr) {
return;
}
fields->properties.currencyPluralInfo.fPtr.adoptInstead(cpi.orphan());
touchNoError();
}
void DecimalFormat::setCurrencyPluralInfo(const CurrencyPluralInfo& info) {
if (fields == nullptr) {
return;
}
if (fields->properties.currencyPluralInfo.fPtr.isNull()) {
// Note: clone() can fail with OOM error, but we have no way to report it. :(
fields->properties.currencyPluralInfo.fPtr.adoptInstead(info.clone());
} else {
*fields->properties.currencyPluralInfo.fPtr = info; // copy-assignment operator
}
touchNoError();
}
UnicodeString& DecimalFormat::getPositivePrefix(UnicodeString& result) const {
if (fields == nullptr) {
result.setToBogus();
return result;
}
UErrorCode status = U_ZERO_ERROR;
fields->formatter.getAffixImpl(true, false, result, status);
if (U_FAILURE(status)) { result.setToBogus(); }
return result;
}
void DecimalFormat::setPositivePrefix(const UnicodeString& newValue) {
if (fields == nullptr) {
return;
}
if (newValue == fields->properties.positivePrefix) { return; }
fields->properties.positivePrefix = newValue;
touchNoError();
}
UnicodeString& DecimalFormat::getNegativePrefix(UnicodeString& result) const {
if (fields == nullptr) {
result.setToBogus();
return result;
}
UErrorCode status = U_ZERO_ERROR;
fields->formatter.getAffixImpl(true, true, result, status);
if (U_FAILURE(status)) { result.setToBogus(); }
return result;
}
void DecimalFormat::setNegativePrefix(const UnicodeString& newValue) {
if (fields == nullptr) {
return;
}
if (newValue == fields->properties.negativePrefix) { return; }
fields->properties.negativePrefix = newValue;
touchNoError();
}
UnicodeString& DecimalFormat::getPositiveSuffix(UnicodeString& result) const {
if (fields == nullptr) {
result.setToBogus();
return result;
}
UErrorCode status = U_ZERO_ERROR;
fields->formatter.getAffixImpl(false, false, result, status);
if (U_FAILURE(status)) { result.setToBogus(); }
return result;
}
void DecimalFormat::setPositiveSuffix(const UnicodeString& newValue) {
if (fields == nullptr) {
return;
}
if (newValue == fields->properties.positiveSuffix) { return; }
fields->properties.positiveSuffix = newValue;
touchNoError();
}
UnicodeString& DecimalFormat::getNegativeSuffix(UnicodeString& result) const {
if (fields == nullptr) {
result.setToBogus();
return result;
}
UErrorCode status = U_ZERO_ERROR;
fields->formatter.getAffixImpl(false, true, result, status);
if (U_FAILURE(status)) { result.setToBogus(); }
return result;
}
void DecimalFormat::setNegativeSuffix(const UnicodeString& newValue) {
if (fields == nullptr) {
return;
}
if (newValue == fields->properties.negativeSuffix) { return; }
fields->properties.negativeSuffix = newValue;
touchNoError();
}
UBool DecimalFormat::isSignAlwaysShown() const {
// Not much we can do to report an error.
if (fields == nullptr) {
return DecimalFormatProperties::getDefault().signAlwaysShown;
}
return fields->properties.signAlwaysShown;
}
void DecimalFormat::setSignAlwaysShown(UBool value) {
if (fields == nullptr) { return; }
if (UBOOL_TO_BOOL(value) == fields->properties.signAlwaysShown) { return; }
fields->properties.signAlwaysShown = value;
touchNoError();
}
int32_t DecimalFormat::getMultiplier() const {
const DecimalFormatProperties *dfp;
// Not much we can do to report an error.
if (fields == nullptr) {
// Fallback to using the default instance of DecimalFormatProperties.
dfp = &(DecimalFormatProperties::getDefault());
} else {
dfp = &fields->properties;
}
if (dfp->multiplier != 1) {
return dfp->multiplier;
} else if (dfp->magnitudeMultiplier != 0) {
return static_cast<int32_t>(uprv_pow10(dfp->magnitudeMultiplier));
} else {
return 1;
}
}
void DecimalFormat::setMultiplier(int32_t multiplier) {
if (fields == nullptr) {
return;
}
if (multiplier == 0) {
multiplier = 1; // one being the benign default value for a multiplier.
}
// Try to convert to a magnitude multiplier first
int delta = 0;
int value = multiplier;
while (value != 1) {
delta++;
int temp = value / 10;
if (temp * 10 != value) {
delta = -1;
break;
}
value = temp;
}
if (delta != -1) {
fields->properties.magnitudeMultiplier = delta;
fields->properties.multiplier = 1;
} else {
fields->properties.magnitudeMultiplier = 0;
fields->properties.multiplier = multiplier;
}
touchNoError();
}
int32_t DecimalFormat::getMultiplierScale() const {
// Not much we can do to report an error.
if (fields == nullptr) {
// Fallback to using the default instance of DecimalFormatProperties.
return DecimalFormatProperties::getDefault().multiplierScale;
}
return fields->properties.multiplierScale;
}
void DecimalFormat::setMultiplierScale(int32_t newValue) {
if (fields == nullptr) { return; }
if (newValue == fields->properties.multiplierScale) { return; }
fields->properties.multiplierScale = newValue;
touchNoError();
}
double DecimalFormat::getRoundingIncrement() const {
// Not much we can do to report an error.
if (fields == nullptr) {
// Fallback to using the default instance of DecimalFormatProperties.
return DecimalFormatProperties::getDefault().roundingIncrement;
}
return fields->exportedProperties.roundingIncrement;
}
void DecimalFormat::setRoundingIncrement(double newValue) {
if (fields == nullptr) { return; }
if (newValue == fields->properties.roundingIncrement) { return; }
fields->properties.roundingIncrement = newValue;
touchNoError();
}
ERoundingMode DecimalFormat::getRoundingMode() const {
// Not much we can do to report an error.
if (fields == nullptr) {
// Fallback to using the default instance of DecimalFormatProperties.
return static_cast<ERoundingMode>(DecimalFormatProperties::getDefault().roundingMode.getNoError());
}
// UNumberFormatRoundingMode and ERoundingMode have the same values.
return static_cast<ERoundingMode>(fields->exportedProperties.roundingMode.getNoError());
}
void DecimalFormat::setRoundingMode(ERoundingMode roundingMode) UPRV_NO_SANITIZE_UNDEFINED {
if (fields == nullptr) { return; }
auto uRoundingMode = static_cast<UNumberFormatRoundingMode>(roundingMode);
if (!fields->properties.roundingMode.isNull() && uRoundingMode == fields->properties.roundingMode.getNoError()) {
return;
}
NumberFormat::setMaximumIntegerDigits(roundingMode); // to set field for compatibility
fields->properties.roundingMode = uRoundingMode;
touchNoError();
}
int32_t DecimalFormat::getFormatWidth() const {
// Not much we can do to report an error.
if (fields == nullptr) {
// Fallback to using the default instance of DecimalFormatProperties.
return DecimalFormatProperties::getDefault().formatWidth;
}
return fields->properties.formatWidth;
}
void DecimalFormat::setFormatWidth(int32_t width) {
if (fields == nullptr) { return; }
if (width == fields->properties.formatWidth) { return; }
fields->properties.formatWidth = width;
touchNoError();
}
UnicodeString DecimalFormat::getPadCharacterString() const {
if (fields == nullptr || fields->properties.padString.isBogus()) {
// Readonly-alias the static string kFallbackPaddingString
return {true, kFallbackPaddingString, -1};
} else {
return fields->properties.padString;
}
}
void DecimalFormat::setPadCharacter(const UnicodeString& padChar) {
if (fields == nullptr) { return; }
if (padChar == fields->properties.padString) { return; }
if (padChar.length() > 0) {
fields->properties.padString = UnicodeString(padChar.char32At(0));
} else {
fields->properties.padString.setToBogus();
}
touchNoError();
}
EPadPosition DecimalFormat::getPadPosition() const {
if (fields == nullptr || fields->properties.padPosition.isNull()) {
return EPadPosition::kPadBeforePrefix;
} else {
// UNumberFormatPadPosition and EPadPosition have the same values.
return static_cast<EPadPosition>(fields->properties.padPosition.getNoError());
}
}
void DecimalFormat::setPadPosition(EPadPosition padPos) {
if (fields == nullptr) { return; }
auto uPadPos = static_cast<UNumberFormatPadPosition>(padPos);
if (!fields->properties.padPosition.isNull() && uPadPos == fields->properties.padPosition.getNoError()) {
return;
}
fields->properties.padPosition = uPadPos;
touchNoError();
}
UBool DecimalFormat::isScientificNotation() const {
// Not much we can do to report an error.
if (fields == nullptr) {
// Fallback to using the default instance of DecimalFormatProperties.
return (DecimalFormatProperties::getDefault().minimumExponentDigits != -1);
}
return (fields->properties.minimumExponentDigits != -1);
}
void DecimalFormat::setScientificNotation(UBool useScientific) {
if (fields == nullptr) { return; }
int32_t minExp = useScientific ? 1 : -1;
if (fields->properties.minimumExponentDigits == minExp) { return; }
if (useScientific) {
fields->properties.minimumExponentDigits = 1;
} else {
fields->properties.minimumExponentDigits = -1;
}
touchNoError();
}
int8_t DecimalFormat::getMinimumExponentDigits() const {
// Not much we can do to report an error.
if (fields == nullptr) {
// Fallback to using the default instance of DecimalFormatProperties.
return static_cast<int8_t>(DecimalFormatProperties::getDefault().minimumExponentDigits);
}
return static_cast<int8_t>(fields->properties.minimumExponentDigits);
}
void DecimalFormat::setMinimumExponentDigits(int8_t minExpDig) {
if (fields == nullptr) { return; }
if (minExpDig == fields->properties.minimumExponentDigits) { return; }
fields->properties.minimumExponentDigits = minExpDig;
touchNoError();
}
UBool DecimalFormat::isExponentSignAlwaysShown() const {
// Not much we can do to report an error.
if (fields == nullptr) {
// Fallback to using the default instance of DecimalFormatProperties.
return DecimalFormatProperties::getDefault().exponentSignAlwaysShown;
}
return fields->properties.exponentSignAlwaysShown;
}
void DecimalFormat::setExponentSignAlwaysShown(UBool expSignAlways) {
if (fields == nullptr) { return; }
if (UBOOL_TO_BOOL(expSignAlways) == fields->properties.exponentSignAlwaysShown) { return; }
fields->properties.exponentSignAlwaysShown = expSignAlways;
touchNoError();
}
int32_t DecimalFormat::getGroupingSize() const {
int32_t groupingSize;
// Not much we can do to report an error.
if (fields == nullptr) {
// Fallback to using the default instance of DecimalFormatProperties.
groupingSize = DecimalFormatProperties::getDefault().groupingSize;
} else {
groupingSize = fields->properties.groupingSize;
}
if (groupingSize < 0) {
return 0;
}
return groupingSize;
}
void DecimalFormat::setGroupingSize(int32_t newValue) {
if (fields == nullptr) { return; }
if (newValue == fields->properties.groupingSize) { return; }
fields->properties.groupingSize = newValue;
touchNoError();
}
int32_t DecimalFormat::getSecondaryGroupingSize() const {
int32_t grouping2;
// Not much we can do to report an error.
if (fields == nullptr) {
// Fallback to using the default instance of DecimalFormatProperties.
grouping2 = DecimalFormatProperties::getDefault().secondaryGroupingSize;
} else {
grouping2 = fields->properties.secondaryGroupingSize;
}
if (grouping2 < 0) {
return 0;
}
return grouping2;
}
void DecimalFormat::setSecondaryGroupingSize(int32_t newValue) {
if (fields == nullptr) { return; }
if (newValue == fields->properties.secondaryGroupingSize) { return; }
fields->properties.secondaryGroupingSize = newValue;
touchNoError();
}
int32_t DecimalFormat::getMinimumGroupingDigits() const {
// Not much we can do to report an error.
if (fields == nullptr) {
// Fallback to using the default instance of DecimalFormatProperties.
return DecimalFormatProperties::getDefault().minimumGroupingDigits;
}
return fields->properties.minimumGroupingDigits;
}
void DecimalFormat::setMinimumGroupingDigits(int32_t newValue) {
if (fields == nullptr) { return; }
if (newValue == fields->properties.minimumGroupingDigits) { return; }
fields->properties.minimumGroupingDigits = newValue;
touchNoError();
}
UBool DecimalFormat::isDecimalSeparatorAlwaysShown() const {
// Not much we can do to report an error.
if (fields == nullptr) {
// Fallback to using the default instance of DecimalFormatProperties.
return DecimalFormatProperties::getDefault().decimalSeparatorAlwaysShown;
}
return fields->properties.decimalSeparatorAlwaysShown;
}
void DecimalFormat::setDecimalSeparatorAlwaysShown(UBool newValue) {
if (fields == nullptr) { return; }
if (UBOOL_TO_BOOL(newValue) == fields->properties.decimalSeparatorAlwaysShown) { return; }
fields->properties.decimalSeparatorAlwaysShown = newValue;
touchNoError();
}
UBool DecimalFormat::isDecimalPatternMatchRequired() const {
// Not much we can do to report an error.
if (fields == nullptr) {
// Fallback to using the default instance of DecimalFormatProperties.
return DecimalFormatProperties::getDefault().decimalPatternMatchRequired;
}
return fields->properties.decimalPatternMatchRequired;
}
void DecimalFormat::setDecimalPatternMatchRequired(UBool newValue) {
if (fields == nullptr) { return; }
if (UBOOL_TO_BOOL(newValue) == fields->properties.decimalPatternMatchRequired) { return; }
fields->properties.decimalPatternMatchRequired = newValue;
touchNoError();
}
UBool DecimalFormat::isParseNoExponent() const {
// Not much we can do to report an error.
if (fields == nullptr) {
// Fallback to using the default instance of DecimalFormatProperties.
return DecimalFormatProperties::getDefault().parseNoExponent;
}
return fields->properties.parseNoExponent;
}
void DecimalFormat::setParseNoExponent(UBool value) {
if (fields == nullptr) { return; }
if (UBOOL_TO_BOOL(value) == fields->properties.parseNoExponent) { return; }
fields->properties.parseNoExponent = value;
touchNoError();
}
UBool DecimalFormat::isParseCaseSensitive() const {
// Not much we can do to report an error.
if (fields == nullptr) {
// Fallback to using the default instance of DecimalFormatProperties.
return DecimalFormatProperties::getDefault().parseCaseSensitive;
}
return fields->properties.parseCaseSensitive;
}
void DecimalFormat::setParseCaseSensitive(UBool value) {
if (fields == nullptr) { return; }
if (UBOOL_TO_BOOL(value) == fields->properties.parseCaseSensitive) { return; }
fields->properties.parseCaseSensitive = value;
touchNoError();
}
UBool DecimalFormat::isFormatFailIfMoreThanMaxDigits() const {
// Not much we can do to report an error.
if (fields == nullptr) {
// Fallback to using the default instance of DecimalFormatProperties.
return DecimalFormatProperties::getDefault().formatFailIfMoreThanMaxDigits;
}
return fields->properties.formatFailIfMoreThanMaxDigits;
}
void DecimalFormat::setFormatFailIfMoreThanMaxDigits(UBool value) {
if (fields == nullptr) { return; }
if (UBOOL_TO_BOOL(value) == fields->properties.formatFailIfMoreThanMaxDigits) { return; }
fields->properties.formatFailIfMoreThanMaxDigits = value;
touchNoError();
}
UnicodeString& DecimalFormat::toPattern(UnicodeString& result) const {
if (fields == nullptr) {
// We only get here if an OOM error happened during construction, copy construction, assignment, or modification.
result.setToBogus();
return result;
}
// Pull some properties from exportedProperties and others from properties
// to keep affix patterns intact. In particular, pull rounding properties
// so that CurrencyUsage is reflected properly.
// TODO: Consider putting this logic in number_patternstring.cpp instead.
ErrorCode localStatus;
DecimalFormatProperties tprops(fields->properties);
bool useCurrency = (
!tprops.currency.isNull() ||
!tprops.currencyPluralInfo.fPtr.isNull() ||
!tprops.currencyUsage.isNull() ||
tprops.currencyAsDecimal ||
AffixUtils::hasCurrencySymbols(tprops.positivePrefixPattern, localStatus) ||
AffixUtils::hasCurrencySymbols(tprops.positiveSuffixPattern, localStatus) ||
AffixUtils::hasCurrencySymbols(tprops.negativePrefixPattern, localStatus) ||
AffixUtils::hasCurrencySymbols(tprops.negativeSuffixPattern, localStatus));
if (useCurrency) {
tprops.minimumFractionDigits = fields->exportedProperties.minimumFractionDigits;
tprops.maximumFractionDigits = fields->exportedProperties.maximumFractionDigits;
tprops.roundingIncrement = fields->exportedProperties.roundingIncrement;
}
result = PatternStringUtils::propertiesToPatternString(tprops, localStatus);
return result;
}
UnicodeString& DecimalFormat::toLocalizedPattern(UnicodeString& result) const {
if (fields == nullptr) {
// We only get here if an OOM error happened during construction, copy construction, assignment, or modification.
result.setToBogus();
return result;
}
ErrorCode localStatus;
result = toPattern(result);
result = PatternStringUtils::convertLocalized(result, *getDecimalFormatSymbols(), true, localStatus);
return result;
}
void DecimalFormat::applyPattern(const UnicodeString& pattern, UParseError&, UErrorCode& status) {
// TODO: What is parseError for?
applyPattern(pattern, status);
}
void DecimalFormat::applyPattern(const UnicodeString& pattern, UErrorCode& status) {
// don't overwrite status if it's already a failure.
if (U_FAILURE(status)) { return; }
if (fields == nullptr) {
// We only get here if an OOM error happened during construction, copy construction, assignment, or modification.
status = U_MEMORY_ALLOCATION_ERROR;
return;
}
setPropertiesFromPattern(pattern, IGNORE_ROUNDING_NEVER, status);
touch(status);
}
void DecimalFormat::applyLocalizedPattern(const UnicodeString& localizedPattern, UParseError&,
UErrorCode& status) {
// TODO: What is parseError for?
applyLocalizedPattern(localizedPattern, status);
}
void DecimalFormat::applyLocalizedPattern(const UnicodeString& localizedPattern, UErrorCode& status) {
// don't overwrite status if it's already a failure.
if (U_FAILURE(status)) { return; }
if (fields == nullptr) {
// We only get here if an OOM error happened during construction, copy construction, assignment, or modification.
status = U_MEMORY_ALLOCATION_ERROR;
return;
}
UnicodeString pattern = PatternStringUtils::convertLocalized(
localizedPattern, *getDecimalFormatSymbols(), false, status);
applyPattern(pattern, status);
}
void DecimalFormat::setMaximumIntegerDigits(int32_t newValue) {
if (fields == nullptr) { return; }
if (newValue == fields->properties.maximumIntegerDigits) { return; }
// For backwards compatibility, conflicting min/max need to keep the most recent setting.
int32_t min = fields->properties.minimumIntegerDigits;
if (min >= 0 && min > newValue) {
fields->properties.minimumIntegerDigits = newValue;
}
fields->properties.maximumIntegerDigits = newValue;
touchNoError();
}
void DecimalFormat::setMinimumIntegerDigits(int32_t newValue) {
if (fields == nullptr) { return; }
if (newValue == fields->properties.minimumIntegerDigits) { return; }
// For backwards compatibility, conflicting min/max need to keep the most recent setting.
int32_t max = fields->properties.maximumIntegerDigits;
if (max >= 0 && max < newValue) {
fields->properties.maximumIntegerDigits = newValue;
}
fields->properties.minimumIntegerDigits = newValue;
touchNoError();
}
void DecimalFormat::setMaximumFractionDigits(int32_t newValue) {
if (fields == nullptr) { return; }
if (newValue == fields->properties.maximumFractionDigits) { return; }
// cap for backward compatibility, formerly 340, now 999
if (newValue > kMaxIntFracSig) {
newValue = kMaxIntFracSig;
}
// For backwards compatibility, conflicting min/max need to keep the most recent setting.
int32_t min = fields->properties.minimumFractionDigits;
if (min >= 0 && min > newValue) {
fields->properties.minimumFractionDigits = newValue;
}
fields->properties.maximumFractionDigits = newValue;
touchNoError();
}
void DecimalFormat::setMinimumFractionDigits(int32_t newValue) {
if (fields == nullptr) { return; }
if (newValue == fields->properties.minimumFractionDigits) { return; }
// For backwards compatibility, conflicting min/max need to keep the most recent setting.
int32_t max = fields->properties.maximumFractionDigits;
if (max >= 0 && max < newValue) {
fields->properties.maximumFractionDigits = newValue;
}
fields->properties.minimumFractionDigits = newValue;
touchNoError();
}
int32_t DecimalFormat::getMinimumSignificantDigits() const {
// Not much we can do to report an error.
if (fields == nullptr) {
// Fallback to using the default instance of DecimalFormatProperties.
return DecimalFormatProperties::getDefault().minimumSignificantDigits;
}
return fields->exportedProperties.minimumSignificantDigits;
}
int32_t DecimalFormat::getMaximumSignificantDigits() const {
// Not much we can do to report an error.
if (fields == nullptr) {
// Fallback to using the default instance of DecimalFormatProperties.
return DecimalFormatProperties::getDefault().maximumSignificantDigits;
}
return fields->exportedProperties.maximumSignificantDigits;
}
void DecimalFormat::setMinimumSignificantDigits(int32_t value) {
if (fields == nullptr) { return; }
if (value == fields->properties.minimumSignificantDigits) { return; }
int32_t max = fields->properties.maximumSignificantDigits;
if (max >= 0 && max < value) {
fields->properties.maximumSignificantDigits = value;
}
fields->properties.minimumSignificantDigits = value;
touchNoError();
}
void DecimalFormat::setMaximumSignificantDigits(int32_t value) {
if (fields == nullptr) { return; }
if (value == fields->properties.maximumSignificantDigits) { return; }
int32_t min = fields->properties.minimumSignificantDigits;
if (min >= 0 && min > value) {
fields->properties.minimumSignificantDigits = value;
}
fields->properties.maximumSignificantDigits = value;
touchNoError();
}
UBool DecimalFormat::areSignificantDigitsUsed() const {
const DecimalFormatProperties* dfp;
// Not much we can do to report an error.
if (fields == nullptr) {
// Fallback to using the default instance of DecimalFormatProperties.
dfp = &(DecimalFormatProperties::getDefault());
} else {
dfp = &fields->properties;
}
return dfp->minimumSignificantDigits != -1 || dfp->maximumSignificantDigits != -1;
}
void DecimalFormat::setSignificantDigitsUsed(UBool useSignificantDigits) {
if (fields == nullptr) { return; }
// These are the default values from the old implementation.
if (useSignificantDigits) {
if (fields->properties.minimumSignificantDigits != -1 ||
fields->properties.maximumSignificantDigits != -1) {
return;
}
} else {
if (fields->properties.minimumSignificantDigits == -1 &&
fields->properties.maximumSignificantDigits == -1) {
return;
}
}
int32_t minSig = useSignificantDigits ? 1 : -1;
int32_t maxSig = useSignificantDigits ? 6 : -1;
fields->properties.minimumSignificantDigits = minSig;
fields->properties.maximumSignificantDigits = maxSig;
touchNoError();
}
void DecimalFormat::setCurrency(const char16_t* theCurrency, UErrorCode& ec) {
// don't overwrite ec if it's already a failure.
if (U_FAILURE(ec)) { return; }
if (fields == nullptr) {
// We only get here if an OOM error happened during construction, copy construction, assignment, or modification.
ec = U_MEMORY_ALLOCATION_ERROR;
return;
}
CurrencyUnit currencyUnit(theCurrency, ec);
if (U_FAILURE(ec)) { return; }
if (!fields->properties.currency.isNull() && fields->properties.currency.getNoError() == currencyUnit) {
return;
}
NumberFormat::setCurrency(theCurrency, ec); // to set field for compatibility
fields->properties.currency = currencyUnit;
// In Java, the DecimalFormatSymbols is mutable. Why not in C++?
LocalPointer<DecimalFormatSymbols> newSymbols(new DecimalFormatSymbols(*getDecimalFormatSymbols()), ec);
newSymbols->setCurrency(currencyUnit.getISOCurrency(), ec);
fields->symbols.adoptInsteadAndCheckErrorCode(newSymbols.orphan(), ec);
touch(ec);
}
void DecimalFormat::setCurrency(const char16_t* theCurrency) {
ErrorCode localStatus;
setCurrency(theCurrency, localStatus);
}
void DecimalFormat::setCurrencyUsage(UCurrencyUsage newUsage, UErrorCode* ec) {
// don't overwrite ec if it's already a failure.
if (U_FAILURE(*ec)) { return; }
if (fields == nullptr) {
// We only get here if an OOM error happened during construction, copy construction, assignment, or modification.
*ec = U_MEMORY_ALLOCATION_ERROR;
return;
}
if (!fields->properties.currencyUsage.isNull() && newUsage == fields->properties.currencyUsage.getNoError()) {
return;
}
fields->properties.currencyUsage = newUsage;
touch(*ec);
}
UCurrencyUsage DecimalFormat::getCurrencyUsage() const {
// CurrencyUsage is not exported, so we have to get it from the input property bag.
// TODO: Should we export CurrencyUsage instead?
if (fields == nullptr || fields->properties.currencyUsage.isNull()) {
return UCURR_USAGE_STANDARD;
}
return fields->properties.currencyUsage.getNoError();
}
void
DecimalFormat::formatToDecimalQuantity(double number, DecimalQuantity& output, UErrorCode& status) const {
// don't overwrite status if it's already a failure.
if (U_FAILURE(status)) { return; }
if (fields == nullptr) {
// We only get here if an OOM error happened during construction, copy construction, assignment, or modification.
status = U_MEMORY_ALLOCATION_ERROR;
return;
}
fields->formatter.formatDouble(number, status).getDecimalQuantity(output, status);
}
void DecimalFormat::formatToDecimalQuantity(const Formattable& number, DecimalQuantity& output,
UErrorCode& status) const {
// don't overwrite status if it's already a failure.
if (U_FAILURE(status)) { return; }
if (fields == nullptr) {
// We only get here if an OOM error happened during construction, copy construction, assignment, or modification.
status = U_MEMORY_ALLOCATION_ERROR;
return;
}
UFormattedNumberData obj;
number.populateDecimalQuantity(obj.quantity, status);
fields->formatter.formatImpl(&obj, status);
output = std::move(obj.quantity);
}
const number::LocalizedNumberFormatter* DecimalFormat::toNumberFormatter(UErrorCode& status) const {
// We sometimes need to return nullptr here (see ICU-20380)
if (U_FAILURE(status)) { return nullptr; }
if (fields == nullptr) {
// We only get here if an OOM error happened during construction, copy construction, assignment, or modification.
status = U_MEMORY_ALLOCATION_ERROR;
return nullptr;
}
return &fields->formatter;
}
/** Rebuilds the formatter object from the property bag. */
void DecimalFormat::touch(UErrorCode& status) {
if (U_FAILURE(status)) {
return;
}
if (fields == nullptr) {
// We only get here if an OOM error happened during construction, copy construction, assignment, or modification.
// For regular construction, the caller should have checked the status variable for errors.
// For copy construction, there is unfortunately nothing to report the error, so we need to guard against
// this possible bad state here and set the status to an error.
status = U_MEMORY_ALLOCATION_ERROR;
return;
}
// In C++, fields->symbols (or, if it's null, the DecimalFormatSymbols owned by the underlying LocalizedNumberFormatter)
// is the source of truth for the locale.
const DecimalFormatSymbols* symbols = getDecimalFormatSymbols();
Locale locale = symbols->getLocale();
// Note: The formatter is relatively cheap to create, and we need it to populate fields->exportedProperties,
// so automatically recompute it here. The parser is a bit more expensive and is not needed until the
// parse method is called, so defer that until needed.
// TODO: Only update the pieces that changed instead of re-computing the whole formatter?
// Since memory has already been allocated for the formatter, we can move assign a stack-allocated object
// and don't need to call new. (Which is slower and could possibly fail).
// [Note that "symbols" above might point to the DecimalFormatSymbols object owned by fields->formatter.
// That's okay, because NumberPropertyMapper::create() will clone it before fields->formatter's assignment
// operator deletes it. But it does mean that "symbols" can't be counted on to be good after this line.]
fields->formatter = NumberPropertyMapper::create(
fields->properties, *symbols, fields->warehouse, fields->exportedProperties, status
).locale(locale);
fields->symbols.adoptInstead(nullptr); // the fields->symbols property is only temporary, until we can copy it into a new LocalizedNumberFormatter
// Do this after fields->exportedProperties are set up
setupFastFormat();
// Delete the parsers if they were made previously
#ifndef __wasi__
delete fields->atomicParser.exchange(nullptr);
delete fields->atomicCurrencyParser.exchange(nullptr);
#else
delete fields->atomicParser;
delete fields->atomicCurrencyParser;
#endif
// In order for the getters to work, we need to populate some fields in NumberFormat.
NumberFormat::setCurrency(fields->exportedProperties.currency.get(status).getISOCurrency(), status);
NumberFormat::setMaximumIntegerDigits(fields->exportedProperties.maximumIntegerDigits);
NumberFormat::setMinimumIntegerDigits(fields->exportedProperties.minimumIntegerDigits);
NumberFormat::setMaximumFractionDigits(fields->exportedProperties.maximumFractionDigits);
NumberFormat::setMinimumFractionDigits(fields->exportedProperties.minimumFractionDigits);
// fImpl->properties, not fields->exportedProperties, since this information comes from the pattern:
NumberFormat::setGroupingUsed(fields->properties.groupingUsed);
}
void DecimalFormat::touchNoError() {
UErrorCode localStatus = U_ZERO_ERROR;
touch(localStatus);
}
void DecimalFormat::setPropertiesFromPattern(const UnicodeString& pattern, int32_t ignoreRounding,
UErrorCode& status) {
if (U_SUCCESS(status)) {
// Cast workaround to get around putting the enum in the public header file
auto actualIgnoreRounding = static_cast<IgnoreRounding>(ignoreRounding);
PatternParser::parseToExistingProperties(pattern, fields->properties, actualIgnoreRounding, status);
}
}
const numparse::impl::NumberParserImpl* DecimalFormat::getParser(UErrorCode& status) const {
// TODO: Move this into umutex.h? (similar logic also in numrange_fluent.cpp)
// See ICU-20146
if (U_FAILURE(status)) {
return nullptr;
}
// First try to get the pre-computed parser
#ifndef __wasi__
auto* ptr = fields->atomicParser.load();
#else
auto* ptr = fields->atomicParser;
#endif
if (ptr != nullptr) {
return ptr;
}
// Try computing the parser on our own
auto* temp = NumberParserImpl::createParserFromProperties(fields->properties, *getDecimalFormatSymbols(), false, status);
if (U_FAILURE(status)) {
return nullptr;
}
if (temp == nullptr) {
status = U_MEMORY_ALLOCATION_ERROR;
return nullptr;
}
// Note: ptr starts as nullptr; during compare_exchange,
// it is set to what is actually stored in the atomic
// if another thread beat us to computing the parser object.
auto* nonConstThis = const_cast<DecimalFormat*>(this);
#ifndef __wasi__
if (!nonConstThis->fields->atomicParser.compare_exchange_strong(ptr, temp)) {
// Another thread beat us to computing the parser
delete temp;
return ptr;
} else {
// Our copy of the parser got stored in the atomic
return temp;
}
#else
nonConstThis->fields->atomicParser = temp;
return temp;
#endif
}
const numparse::impl::NumberParserImpl* DecimalFormat::getCurrencyParser(UErrorCode& status) const {
if (U_FAILURE(status)) { return nullptr; }
// First try to get the pre-computed parser
#ifndef __wasi__
auto* ptr = fields->atomicCurrencyParser.load();
#else
auto* ptr = fields->atomicCurrencyParser;
#endif
if (ptr != nullptr) {
return ptr;
}
// Try computing the parser on our own
auto* temp = NumberParserImpl::createParserFromProperties(fields->properties, *getDecimalFormatSymbols(), true, status);
if (temp == nullptr) {
status = U_MEMORY_ALLOCATION_ERROR;
// although we may still dereference, call sites should be guarded
}
// Note: ptr starts as nullptr; during compare_exchange, it is set to what is actually stored in the
// atomic if another thread beat us to computing the parser object.
auto* nonConstThis = const_cast<DecimalFormat*>(this);
#ifndef __wasi__
if (!nonConstThis->fields->atomicCurrencyParser.compare_exchange_strong(ptr, temp)) {
// Another thread beat us to computing the parser
delete temp;
return ptr;
} else {
// Our copy of the parser got stored in the atomic
return temp;
}
#else
nonConstThis->fields->atomicCurrencyParser = temp;
return temp;
#endif
}
void
DecimalFormat::fieldPositionHelper(
const UFormattedNumberData& formatted,
FieldPosition& fieldPosition,
int32_t offset,
UErrorCode& status) {
if (U_FAILURE(status)) { return; }
// always return first occurrence:
fieldPosition.setBeginIndex(0);
fieldPosition.setEndIndex(0);
bool found = formatted.nextFieldPosition(fieldPosition, status);
if (found && offset != 0) {
FieldPositionOnlyHandler fpoh(fieldPosition);
fpoh.shiftLast(offset);
}
}
void
DecimalFormat::fieldPositionIteratorHelper(
const UFormattedNumberData& formatted,
FieldPositionIterator* fpi,
int32_t offset,
UErrorCode& status) {
if (U_SUCCESS(status) && (fpi != nullptr)) {
FieldPositionIteratorHandler fpih(fpi, status);
fpih.setShift(offset);
formatted.getAllFieldPositions(fpih, status);
}
}
// To debug fast-format, change void(x) to printf(x)
#define trace(x) void(x)
void DecimalFormat::setupFastFormat() {
// Check the majority of properties:
if (!fields->properties.equalsDefaultExceptFastFormat()) {
trace("no fast format: equality\n");
fields->canUseFastFormat = false;
return;
}
// Now check the remaining properties.
// Nontrivial affixes:
UBool trivialPP = fields->properties.positivePrefixPattern.isEmpty();
UBool trivialPS = fields->properties.positiveSuffixPattern.isEmpty();
UBool trivialNP = fields->properties.negativePrefixPattern.isBogus() || (
fields->properties.negativePrefixPattern.length() == 1 &&
fields->properties.negativePrefixPattern.charAt(0) == u'-');
UBool trivialNS = fields->properties.negativeSuffixPattern.isEmpty();
if (!trivialPP || !trivialPS || !trivialNP || !trivialNS) {
trace("no fast format: affixes\n");
fields->canUseFastFormat = false;
return;
}
const DecimalFormatSymbols* symbols = getDecimalFormatSymbols();
// Grouping (secondary grouping is forbidden in equalsDefaultExceptFastFormat):
bool groupingUsed = fields->properties.groupingUsed;
int32_t groupingSize = fields->properties.groupingSize;
bool unusualGroupingSize = groupingSize > 0 && groupingSize != 3;
const UnicodeString& groupingString = symbols->getConstSymbol(DecimalFormatSymbols::kGroupingSeparatorSymbol);
if (groupingUsed && (unusualGroupingSize || groupingString.length() != 1)) {
trace("no fast format: grouping\n");
fields->canUseFastFormat = false;
return;
}
// Integer length:
int32_t minInt = fields->exportedProperties.minimumIntegerDigits;
int32_t maxInt = fields->exportedProperties.maximumIntegerDigits;
// Fastpath supports up to only 10 digits (length of INT32_MIN)
if (minInt > 10) {
trace("no fast format: integer\n");
fields->canUseFastFormat = false;
return;
}
// Fraction length (no fraction part allowed in fast path):
int32_t minFrac = fields->exportedProperties.minimumFractionDigits;
if (minFrac > 0) {
trace("no fast format: fraction\n");
fields->canUseFastFormat = false;
return;
}
// Other symbols:
const UnicodeString& minusSignString = symbols->getConstSymbol(DecimalFormatSymbols::kMinusSignSymbol);
UChar32 codePointZero = symbols->getCodePointZero();
if (minusSignString.length() != 1 || U16_LENGTH(codePointZero) != 1) {
trace("no fast format: symbols\n");
fields->canUseFastFormat = false;
return;
}
// Good to go!
trace("can use fast format!\n");
fields->canUseFastFormat = true;
fields->fastData.cpZero = static_cast<char16_t>(codePointZero);
fields->fastData.cpGroupingSeparator = groupingUsed && groupingSize == 3 ? groupingString.charAt(0) : 0;
fields->fastData.cpMinusSign = minusSignString.charAt(0);
fields->fastData.minInt = (minInt < 0 || minInt > 127) ? 0 : static_cast<int8_t>(minInt);
fields->fastData.maxInt = (maxInt < 0 || maxInt > 127) ? 127 : static_cast<int8_t>(maxInt);
}
bool DecimalFormat::fastFormatDouble(double input, UnicodeString& output) const {
if (!fields->canUseFastFormat) {
return false;
}
if (std::isnan(input)
|| uprv_trunc(input) != input
|| input <= INT32_MIN
|| input > INT32_MAX) {
return false;
}
doFastFormatInt32(static_cast<int32_t>(input), std::signbit(input), output);
return true;
}
bool DecimalFormat::fastFormatInt64(int64_t input, UnicodeString& output) const {
if (!fields->canUseFastFormat) {
return false;
}
if (input <= INT32_MIN || input > INT32_MAX) {
return false;
}
doFastFormatInt32(static_cast<int32_t>(input), input < 0, output);
return true;
}
void DecimalFormat::doFastFormatInt32(int32_t input, bool isNegative, UnicodeString& output) const {
U_ASSERT(fields->canUseFastFormat);
if (isNegative) {
output.append(fields->fastData.cpMinusSign);
U_ASSERT(input != INT32_MIN); // handled by callers
input = -input;
}
// Cap at int32_t to make the buffer small and operations fast.
// Longest string: "2,147,483,648" (13 chars in length)
static constexpr int32_t localCapacity = 13;
char16_t localBuffer[localCapacity];
char16_t* ptr = localBuffer + localCapacity;
int8_t group = 0;
int8_t minInt = (fields->fastData.minInt < 1)? 1: fields->fastData.minInt;
for (int8_t i = 0; i < fields->fastData.maxInt && (input != 0 || i < minInt); i++) {
if (group++ == 3 && fields->fastData.cpGroupingSeparator != 0) {
*(--ptr) = fields->fastData.cpGroupingSeparator;
group = 1;
}
std::div_t res = std::div(input, 10);
*(--ptr) = static_cast<char16_t>(fields->fastData.cpZero + res.rem);
input = res.quot;
}
int32_t len = localCapacity - static_cast<int32_t>(ptr - localBuffer);
output.append(ptr, len);
}
#endif /* #if !UCONFIG_NO_FORMATTING */