| // © 2018 and later: Unicode, Inc. and others. |
| // License & terms of use: http://www.unicode.org/copyright.html |
| |
| #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 "number_mapper.h" |
| #include "number_patternstring.h" |
| #include "unicode/errorcode.h" |
| #include "number_utils.h" |
| |
| using namespace icu; |
| using namespace icu::number; |
| using namespace icu::number::impl; |
| |
| |
| UnlocalizedNumberFormatter NumberPropertyMapper::create(const DecimalFormatProperties& properties, |
| const DecimalFormatSymbols& symbols, |
| DecimalFormatWarehouse& warehouse, |
| UErrorCode& status) { |
| return NumberFormatter::with().macros(oldToNew(properties, symbols, warehouse, nullptr, status)); |
| } |
| |
| UnlocalizedNumberFormatter NumberPropertyMapper::create(const DecimalFormatProperties& properties, |
| const DecimalFormatSymbols& symbols, |
| DecimalFormatWarehouse& warehouse, |
| DecimalFormatProperties& exportedProperties, |
| UErrorCode& status) { |
| return NumberFormatter::with().macros( |
| oldToNew( |
| properties, symbols, warehouse, &exportedProperties, status)); |
| } |
| |
| MacroProps NumberPropertyMapper::oldToNew(const DecimalFormatProperties& properties, |
| const DecimalFormatSymbols& symbols, |
| DecimalFormatWarehouse& warehouse, |
| DecimalFormatProperties* exportedProperties, |
| UErrorCode& status) { |
| MacroProps macros; |
| Locale locale = symbols.getLocale(); |
| |
| ///////////// |
| // SYMBOLS // |
| ///////////// |
| |
| macros.symbols.setTo(symbols); |
| |
| ////////////////// |
| // PLURAL RULES // |
| ////////////////// |
| |
| if (!properties.currencyPluralInfo.fPtr.isNull()) { |
| macros.rules = properties.currencyPluralInfo.fPtr->getPluralRules(); |
| } |
| |
| ///////////// |
| // AFFIXES // |
| ///////////// |
| |
| warehouse.affixProvider.setTo(properties, status); |
| macros.affixProvider = &warehouse.affixProvider.get(); |
| |
| /////////// |
| // UNITS // |
| /////////// |
| |
| bool useCurrency = ( |
| !properties.currency.isNull() || |
| !properties.currencyPluralInfo.fPtr.isNull() || |
| !properties.currencyUsage.isNull() || |
| warehouse.affixProvider.get().hasCurrencySign()); |
| CurrencyUnit currency = resolveCurrency(properties, locale, status); |
| UCurrencyUsage currencyUsage = properties.currencyUsage.getOrDefault(UCURR_USAGE_STANDARD); |
| if (useCurrency) { |
| // NOTE: Slicing is OK. |
| macros.unit = currency; // NOLINT |
| } |
| |
| /////////////////////// |
| // ROUNDING STRATEGY // |
| /////////////////////// |
| |
| int32_t maxInt = properties.maximumIntegerDigits; |
| int32_t minInt = properties.minimumIntegerDigits; |
| int32_t maxFrac = properties.maximumFractionDigits; |
| int32_t minFrac = properties.minimumFractionDigits; |
| int32_t minSig = properties.minimumSignificantDigits; |
| int32_t maxSig = properties.maximumSignificantDigits; |
| double roundingIncrement = properties.roundingIncrement; |
| // Not assigning directly to macros.roundingMode here: we change |
| // roundingMode if and when we also change macros.precision. |
| RoundingMode roundingMode = properties.roundingMode.getOrDefault(UNUM_ROUND_HALFEVEN); |
| bool explicitMinMaxFrac = minFrac != -1 || maxFrac != -1; |
| bool explicitMinMaxSig = minSig != -1 || maxSig != -1; |
| // Resolve min/max frac for currencies, required for the validation logic and for when minFrac or |
| // maxFrac was |
| // set (but not both) on a currency instance. |
| // NOTE: Increments are handled in "Precision.constructCurrency()". |
| if (useCurrency && (minFrac == -1 || maxFrac == -1)) { |
| int32_t digits = ucurr_getDefaultFractionDigitsForUsage( |
| currency.getISOCurrency(), currencyUsage, &status); |
| if (minFrac == -1 && maxFrac == -1) { |
| minFrac = digits; |
| maxFrac = digits; |
| } else if (minFrac == -1) { |
| minFrac = std::min(maxFrac, digits); |
| } else /* if (maxFrac == -1) */ { |
| maxFrac = std::max(minFrac, digits); |
| } |
| } |
| // Validate min/max int/frac. |
| // For backwards compatibility, minimum overrides maximum if the two conflict. |
| if (minInt == 0 && maxFrac != 0) { |
| minFrac = (minFrac < 0 || (minFrac == 0 && maxInt == 0)) ? 1 : minFrac; |
| maxFrac = maxFrac < 0 ? -1 : maxFrac < minFrac ? minFrac : maxFrac; |
| minInt = 0; |
| maxInt = maxInt < 0 ? -1 : maxInt > kMaxIntFracSig ? -1 : maxInt; |
| } else { |
| // Force a digit before the decimal point. |
| minFrac = minFrac < 0 ? 0 : minFrac; |
| maxFrac = maxFrac < 0 ? -1 : maxFrac < minFrac ? minFrac : maxFrac; |
| minInt = minInt <= 0 ? 1 : minInt > kMaxIntFracSig ? 1 : minInt; |
| maxInt = maxInt < 0 ? -1 : maxInt < minInt ? minInt : maxInt > kMaxIntFracSig ? -1 : maxInt; |
| } |
| Precision precision; |
| if (!properties.currencyUsage.isNull()) { |
| precision = Precision::constructCurrency(currencyUsage).withCurrency(currency); |
| } else if (roundingIncrement != 0.0) { |
| if (PatternStringUtils::ignoreRoundingIncrement(roundingIncrement, maxFrac)) { |
| precision = Precision::constructFraction(minFrac, maxFrac); |
| } else { |
| precision = Precision::constructIncrement(roundingIncrement, minFrac); |
| } |
| } else if (explicitMinMaxSig) { |
| minSig = minSig < 1 ? 1 : minSig > kMaxIntFracSig ? kMaxIntFracSig : minSig; |
| maxSig = maxSig < 0 ? kMaxIntFracSig : maxSig < minSig ? minSig : maxSig > kMaxIntFracSig |
| ? kMaxIntFracSig : maxSig; |
| precision = Precision::constructSignificant(minSig, maxSig); |
| } else if (explicitMinMaxFrac) { |
| precision = Precision::constructFraction(minFrac, maxFrac); |
| } else if (useCurrency) { |
| precision = Precision::constructCurrency(currencyUsage); |
| } |
| if (!precision.isBogus()) { |
| macros.roundingMode = roundingMode; |
| macros.precision = precision; |
| } |
| |
| /////////////////// |
| // INTEGER WIDTH // |
| /////////////////// |
| |
| macros.integerWidth = IntegerWidth( |
| static_cast<digits_t>(minInt), |
| static_cast<digits_t>(maxInt), |
| properties.formatFailIfMoreThanMaxDigits); |
| |
| /////////////////////// |
| // GROUPING STRATEGY // |
| /////////////////////// |
| |
| macros.grouper = Grouper::forProperties(properties); |
| |
| ///////////// |
| // PADDING // |
| ///////////// |
| |
| if (properties.formatWidth > 0) { |
| macros.padder = Padder::forProperties(properties); |
| } |
| |
| /////////////////////////////// |
| // DECIMAL MARK ALWAYS SHOWN // |
| /////////////////////////////// |
| |
| macros.decimal = properties.decimalSeparatorAlwaysShown ? UNUM_DECIMAL_SEPARATOR_ALWAYS |
| : UNUM_DECIMAL_SEPARATOR_AUTO; |
| |
| /////////////////////// |
| // SIGN ALWAYS SHOWN // |
| /////////////////////// |
| |
| macros.sign = properties.signAlwaysShown ? UNUM_SIGN_ALWAYS : UNUM_SIGN_AUTO; |
| |
| ///////////////////////// |
| // SCIENTIFIC NOTATION // |
| ///////////////////////// |
| |
| if (properties.minimumExponentDigits != -1) { |
| // Scientific notation is required. |
| // This whole section feels like a hack, but it is needed for regression tests. |
| // The mapping from property bag to scientific notation is nontrivial due to LDML rules. |
| if (maxInt > 8) { |
| // But #13110: The maximum of 8 digits has unknown origins and is not in the spec. |
| // If maxInt is greater than 8, it is set to minInt, even if minInt is greater than 8. |
| maxInt = minInt; |
| macros.integerWidth = IntegerWidth::zeroFillTo(minInt).truncateAt(maxInt); |
| } else if (maxInt > minInt && minInt > 1) { |
| // Bug #13289: if maxInt > minInt > 1, then minInt should be 1. |
| minInt = 1; |
| macros.integerWidth = IntegerWidth::zeroFillTo(minInt).truncateAt(maxInt); |
| } |
| int engineering = maxInt < 0 ? -1 : maxInt; |
| macros.notation = ScientificNotation( |
| // Engineering interval: |
| static_cast<int8_t>(engineering), |
| // Enforce minimum integer digits (for patterns like "000.00E0"): |
| (engineering == minInt), |
| // Minimum exponent digits: |
| static_cast<digits_t>(properties.minimumExponentDigits), |
| // Exponent sign always shown: |
| properties.exponentSignAlwaysShown ? UNUM_SIGN_ALWAYS : UNUM_SIGN_AUTO); |
| // Scientific notation also involves overriding the rounding mode. |
| // TODO: Overriding here is a bit of a hack. Should this logic go earlier? |
| if (macros.precision.fType == Precision::PrecisionType::RND_FRACTION) { |
| // For the purposes of rounding, get the original min/max int/frac, since the local |
| // variables have been manipulated for display purposes. |
| int maxInt_ = properties.maximumIntegerDigits; |
| int minInt_ = properties.minimumIntegerDigits; |
| int minFrac_ = properties.minimumFractionDigits; |
| int maxFrac_ = properties.maximumFractionDigits; |
| if (minInt_ == 0 && maxFrac_ == 0) { |
| // Patterns like "#E0" and "##E0", which mean no rounding! |
| macros.precision = Precision::unlimited(); |
| } else if (minInt_ == 0 && minFrac_ == 0) { |
| // Patterns like "#.##E0" (no zeros in the mantissa), which mean round to maxFrac+1 |
| macros.precision = Precision::constructSignificant(1, maxFrac_ + 1); |
| } else { |
| int maxSig_ = minInt_ + maxFrac_; |
| // Bug #20058: if maxInt_ > minInt_ > 1, then minInt_ should be 1. |
| if (maxInt_ > minInt_ && minInt_ > 1) { |
| minInt_ = 1; |
| } |
| int minSig_ = minInt_ + minFrac_; |
| // To avoid regression, maxSig is not reset when minInt_ set to 1. |
| // TODO: Reset maxSig_ = 1 + minFrac_ to follow the spec. |
| macros.precision = Precision::constructSignificant(minSig_, maxSig_); |
| } |
| macros.roundingMode = roundingMode; |
| } |
| } |
| |
| ////////////////////// |
| // COMPACT NOTATION // |
| ////////////////////// |
| |
| if (!properties.compactStyle.isNull()) { |
| if (properties.compactStyle.getNoError() == UNumberCompactStyle::UNUM_LONG) { |
| macros.notation = Notation::compactLong(); |
| } else { |
| macros.notation = Notation::compactShort(); |
| } |
| // Do not forward the affix provider. |
| macros.affixProvider = nullptr; |
| } |
| |
| ///////////////// |
| // MULTIPLIERS // |
| ///////////////// |
| |
| macros.scale = scaleFromProperties(properties); |
| |
| ////////////////////// |
| // PROPERTY EXPORTS // |
| ////////////////////// |
| |
| if (exportedProperties != nullptr) { |
| |
| exportedProperties->currency = currency; |
| exportedProperties->roundingMode = roundingMode; |
| exportedProperties->minimumIntegerDigits = minInt; |
| exportedProperties->maximumIntegerDigits = maxInt == -1 ? INT32_MAX : maxInt; |
| |
| Precision rounding_; |
| if (precision.fType == Precision::PrecisionType::RND_CURRENCY) { |
| rounding_ = precision.withCurrency(currency, status); |
| } else { |
| rounding_ = precision; |
| } |
| int minFrac_ = minFrac; |
| int maxFrac_ = maxFrac; |
| int minSig_ = minSig; |
| int maxSig_ = maxSig; |
| double increment_ = 0.0; |
| if (rounding_.fType == Precision::PrecisionType::RND_FRACTION) { |
| minFrac_ = rounding_.fUnion.fracSig.fMinFrac; |
| maxFrac_ = rounding_.fUnion.fracSig.fMaxFrac; |
| } else if (rounding_.fType == Precision::PrecisionType::RND_INCREMENT |
| || rounding_.fType == Precision::PrecisionType::RND_INCREMENT_ONE |
| || rounding_.fType == Precision::PrecisionType::RND_INCREMENT_FIVE) { |
| increment_ = rounding_.fUnion.increment.fIncrement; |
| minFrac_ = rounding_.fUnion.increment.fMinFrac; |
| maxFrac_ = rounding_.fUnion.increment.fMinFrac; |
| } else if (rounding_.fType == Precision::PrecisionType::RND_SIGNIFICANT) { |
| minSig_ = rounding_.fUnion.fracSig.fMinSig; |
| maxSig_ = rounding_.fUnion.fracSig.fMaxSig; |
| } |
| |
| exportedProperties->minimumFractionDigits = minFrac_; |
| exportedProperties->maximumFractionDigits = maxFrac_; |
| exportedProperties->minimumSignificantDigits = minSig_; |
| exportedProperties->maximumSignificantDigits = maxSig_; |
| exportedProperties->roundingIncrement = increment_; |
| } |
| |
| return macros; |
| } |
| |
| |
| void PropertiesAffixPatternProvider::setTo(const DecimalFormatProperties& properties, UErrorCode& status) { |
| fBogus = false; |
| |
| // There are two ways to set affixes in DecimalFormat: via the pattern string (applyPattern), and via the |
| // explicit setters (setPositivePrefix and friends). The way to resolve the settings is as follows: |
| // |
| // 1) If the explicit setting is present for the field, use it. |
| // 2) Otherwise, follows UTS 35 rules based on the pattern string. |
| // |
| // Importantly, the explicit setters affect only the one field they override. If you set the positive |
| // prefix, that should not affect the negative prefix. |
| |
| // Convenience: Extract the properties into local variables. |
| // Variables are named with three chars: [p/n][p/s][o/p] |
| // [p/n] => p for positive, n for negative |
| // [p/s] => p for prefix, s for suffix |
| // [o/p] => o for escaped custom override string, p for pattern string |
| UnicodeString ppo = AffixUtils::escape(properties.positivePrefix); |
| UnicodeString pso = AffixUtils::escape(properties.positiveSuffix); |
| UnicodeString npo = AffixUtils::escape(properties.negativePrefix); |
| UnicodeString nso = AffixUtils::escape(properties.negativeSuffix); |
| const UnicodeString& ppp = properties.positivePrefixPattern; |
| const UnicodeString& psp = properties.positiveSuffixPattern; |
| const UnicodeString& npp = properties.negativePrefixPattern; |
| const UnicodeString& nsp = properties.negativeSuffixPattern; |
| |
| if (!properties.positivePrefix.isBogus()) { |
| posPrefix = ppo; |
| } else if (!ppp.isBogus()) { |
| posPrefix = ppp; |
| } else { |
| // UTS 35: Default positive prefix is empty string. |
| posPrefix = u""; |
| } |
| |
| if (!properties.positiveSuffix.isBogus()) { |
| posSuffix = pso; |
| } else if (!psp.isBogus()) { |
| posSuffix = psp; |
| } else { |
| // UTS 35: Default positive suffix is empty string. |
| posSuffix = u""; |
| } |
| |
| if (!properties.negativePrefix.isBogus()) { |
| negPrefix = npo; |
| } else if (!npp.isBogus()) { |
| negPrefix = npp; |
| } else { |
| // UTS 35: Default negative prefix is "-" with positive prefix. |
| // Important: We prepend the "-" to the pattern, not the override! |
| negPrefix = ppp.isBogus() ? u"-" : u"-" + ppp; |
| } |
| |
| if (!properties.negativeSuffix.isBogus()) { |
| negSuffix = nso; |
| } else if (!nsp.isBogus()) { |
| negSuffix = nsp; |
| } else { |
| // UTS 35: Default negative prefix is the positive prefix. |
| negSuffix = psp.isBogus() ? u"" : psp; |
| } |
| |
| // For declaring if this is a currency pattern, we need to look at the |
| // original pattern, not at any user-specified overrides. |
| isCurrencyPattern = ( |
| AffixUtils::hasCurrencySymbols(ppp, status) || |
| AffixUtils::hasCurrencySymbols(psp, status) || |
| AffixUtils::hasCurrencySymbols(npp, status) || |
| AffixUtils::hasCurrencySymbols(nsp, status)); |
| } |
| |
| char16_t PropertiesAffixPatternProvider::charAt(int flags, int i) const { |
| return getStringInternal(flags).charAt(i); |
| } |
| |
| int PropertiesAffixPatternProvider::length(int flags) const { |
| return getStringInternal(flags).length(); |
| } |
| |
| UnicodeString PropertiesAffixPatternProvider::getString(int32_t flags) const { |
| return getStringInternal(flags); |
| } |
| |
| const UnicodeString& PropertiesAffixPatternProvider::getStringInternal(int32_t flags) const { |
| bool prefix = (flags & AFFIX_PREFIX) != 0; |
| bool negative = (flags & AFFIX_NEGATIVE_SUBPATTERN) != 0; |
| if (prefix && negative) { |
| return negPrefix; |
| } else if (prefix) { |
| return posPrefix; |
| } else if (negative) { |
| return negSuffix; |
| } else { |
| return posSuffix; |
| } |
| } |
| |
| bool PropertiesAffixPatternProvider::positiveHasPlusSign() const { |
| // TODO: Change the internal APIs to propagate out the error? |
| ErrorCode localStatus; |
| return AffixUtils::containsType(posPrefix, TYPE_PLUS_SIGN, localStatus) || |
| AffixUtils::containsType(posSuffix, TYPE_PLUS_SIGN, localStatus); |
| } |
| |
| bool PropertiesAffixPatternProvider::hasNegativeSubpattern() const { |
| return ( |
| (negSuffix != posSuffix) || |
| negPrefix.tempSubString(1) != posPrefix || |
| negPrefix.charAt(0) != u'-' |
| ); |
| } |
| |
| bool PropertiesAffixPatternProvider::negativeHasMinusSign() const { |
| ErrorCode localStatus; |
| return AffixUtils::containsType(negPrefix, TYPE_MINUS_SIGN, localStatus) || |
| AffixUtils::containsType(negSuffix, TYPE_MINUS_SIGN, localStatus); |
| } |
| |
| bool PropertiesAffixPatternProvider::hasCurrencySign() const { |
| return isCurrencyPattern; |
| } |
| |
| bool PropertiesAffixPatternProvider::containsSymbolType(AffixPatternType type, UErrorCode& status) const { |
| return AffixUtils::containsType(posPrefix, type, status) || |
| AffixUtils::containsType(posSuffix, type, status) || |
| AffixUtils::containsType(negPrefix, type, status) || |
| AffixUtils::containsType(negSuffix, type, status); |
| } |
| |
| bool PropertiesAffixPatternProvider::hasBody() const { |
| return true; |
| } |
| |
| |
| void CurrencyPluralInfoAffixProvider::setTo(const CurrencyPluralInfo& cpi, |
| const DecimalFormatProperties& properties, |
| UErrorCode& status) { |
| // We need to use a PropertiesAffixPatternProvider, not the simpler version ParsedPatternInfo, |
| // because user-specified affix overrides still need to work. |
| fBogus = false; |
| DecimalFormatProperties pluralProperties(properties); |
| for (int32_t plural = 0; plural < StandardPlural::COUNT; plural++) { |
| const char* keyword = StandardPlural::getKeyword(static_cast<StandardPlural::Form>(plural)); |
| UnicodeString patternString; |
| patternString = cpi.getCurrencyPluralPattern(keyword, patternString); |
| PatternParser::parseToExistingProperties( |
| patternString, |
| pluralProperties, |
| IGNORE_ROUNDING_NEVER, |
| status); |
| affixesByPlural[plural].setTo(pluralProperties, status); |
| } |
| } |
| |
| char16_t CurrencyPluralInfoAffixProvider::charAt(int32_t flags, int32_t i) const { |
| int32_t pluralOrdinal = (flags & AFFIX_PLURAL_MASK); |
| return affixesByPlural[pluralOrdinal].charAt(flags, i); |
| } |
| |
| int32_t CurrencyPluralInfoAffixProvider::length(int32_t flags) const { |
| int32_t pluralOrdinal = (flags & AFFIX_PLURAL_MASK); |
| return affixesByPlural[pluralOrdinal].length(flags); |
| } |
| |
| UnicodeString CurrencyPluralInfoAffixProvider::getString(int32_t flags) const { |
| int32_t pluralOrdinal = (flags & AFFIX_PLURAL_MASK); |
| return affixesByPlural[pluralOrdinal].getString(flags); |
| } |
| |
| bool CurrencyPluralInfoAffixProvider::positiveHasPlusSign() const { |
| return affixesByPlural[StandardPlural::OTHER].positiveHasPlusSign(); |
| } |
| |
| bool CurrencyPluralInfoAffixProvider::hasNegativeSubpattern() const { |
| return affixesByPlural[StandardPlural::OTHER].hasNegativeSubpattern(); |
| } |
| |
| bool CurrencyPluralInfoAffixProvider::negativeHasMinusSign() const { |
| return affixesByPlural[StandardPlural::OTHER].negativeHasMinusSign(); |
| } |
| |
| bool CurrencyPluralInfoAffixProvider::hasCurrencySign() const { |
| return affixesByPlural[StandardPlural::OTHER].hasCurrencySign(); |
| } |
| |
| bool CurrencyPluralInfoAffixProvider::containsSymbolType(AffixPatternType type, UErrorCode& status) const { |
| return affixesByPlural[StandardPlural::OTHER].containsSymbolType(type, status); |
| } |
| |
| bool CurrencyPluralInfoAffixProvider::hasBody() const { |
| return affixesByPlural[StandardPlural::OTHER].hasBody(); |
| } |
| |
| |
| #endif /* #if !UCONFIG_NO_FORMATTING */ |
