| // Copyright 2018 the V8 project authors. All rights reserved. |
| // Use of this source code is governed by a BSD-style license that can be |
| // found in the LICENSE file. |
| |
| #ifndef V8_INTL_SUPPORT |
| #error Internationalization is expected to be enabled. |
| #endif // V8_INTL_SUPPORT |
| |
| #include "src/objects/js-number-format.h" |
| |
| #include <set> |
| #include <string> |
| |
| #include "src/execution/isolate.h" |
| #include "src/objects/intl-objects.h" |
| #include "src/objects/js-number-format-inl.h" |
| #include "src/objects/objects-inl.h" |
| #include "unicode/currunit.h" |
| #include "unicode/decimfmt.h" |
| #include "unicode/locid.h" |
| #include "unicode/nounit.h" |
| #include "unicode/numberformatter.h" |
| #include "unicode/numfmt.h" |
| #include "unicode/ucurr.h" |
| #include "unicode/uloc.h" |
| #include "unicode/unumberformatter.h" |
| #include "unicode/uvernum.h" // for U_ICU_VERSION_MAJOR_NUM |
| |
| namespace v8 { |
| namespace internal { |
| |
| namespace { |
| |
| // [[CurrencyDisplay]] is one of the values "code", "symbol", "name", |
| // or "narrowSymbol" identifying the display of the currency number format. |
| // Note: "narrowSymbol" is added in proposal-unified-intl-numberformat |
| enum class CurrencyDisplay { |
| CODE, |
| SYMBOL, |
| NAME, |
| NARROW_SYMBOL, |
| }; |
| |
| // [[CurrencySign]] is one of the String values "standard" or "accounting", |
| // specifying whether to render negative numbers in accounting format, often |
| // signified by parenthesis. It is only used when [[Style]] has the value |
| // "currency" and when [[SignDisplay]] is not "never". |
| enum class CurrencySign { |
| STANDARD, |
| ACCOUNTING, |
| }; |
| |
| // [[UnitDisplay]] is one of the String values "short", "narrow", or "long", |
| // specifying whether to display the unit as a symbol, narrow symbol, or |
| // localized long name if formatting with the "unit" style. It is |
| // only used when [[Style]] has the value "unit". |
| enum class UnitDisplay { |
| SHORT, |
| NARROW, |
| LONG, |
| }; |
| |
| // [[Notation]] is one of the String values "standard", "scientific", |
| // "engineering", or "compact", specifying whether the number should be |
| // displayed without scaling, scaled to the units place with the power of ten |
| // in scientific notation, scaled to the nearest thousand with the power of |
| // ten in scientific notation, or scaled to the nearest locale-dependent |
| // compact decimal notation power of ten with the corresponding compact |
| // decimal notation affix. |
| |
| enum class Notation { |
| STANDARD, |
| SCIENTIFIC, |
| ENGINEERING, |
| COMPACT, |
| }; |
| |
| // [[CompactDisplay]] is one of the String values "short" or "long", |
| // specifying whether to display compact notation affixes in short form ("5K") |
| // or long form ("5 thousand") if formatting with the "compact" notation. It |
| // is only used when [[Notation]] has the value "compact". |
| enum class CompactDisplay { |
| SHORT, |
| LONG, |
| }; |
| |
| // [[SignDisplay]] is one of the String values "auto", "always", "never", or |
| // "exceptZero", specifying whether to show the sign on negative numbers |
| // only, positive and negative numbers including zero, neither positive nor |
| // negative numbers, or positive and negative numbers but not zero. |
| enum class SignDisplay { |
| AUTO, |
| ALWAYS, |
| NEVER, |
| EXCEPT_ZERO, |
| }; |
| |
| UNumberUnitWidth ToUNumberUnitWidth(CurrencyDisplay currency_display) { |
| switch (currency_display) { |
| case CurrencyDisplay::SYMBOL: |
| return UNumberUnitWidth::UNUM_UNIT_WIDTH_SHORT; |
| case CurrencyDisplay::CODE: |
| return UNumberUnitWidth::UNUM_UNIT_WIDTH_ISO_CODE; |
| case CurrencyDisplay::NAME: |
| return UNumberUnitWidth::UNUM_UNIT_WIDTH_FULL_NAME; |
| case CurrencyDisplay::NARROW_SYMBOL: |
| return UNumberUnitWidth::UNUM_UNIT_WIDTH_NARROW; |
| } |
| } |
| |
| UNumberUnitWidth ToUNumberUnitWidth(UnitDisplay unit_display) { |
| switch (unit_display) { |
| case UnitDisplay::SHORT: |
| return UNumberUnitWidth::UNUM_UNIT_WIDTH_SHORT; |
| case UnitDisplay::LONG: |
| return UNumberUnitWidth::UNUM_UNIT_WIDTH_FULL_NAME; |
| case UnitDisplay::NARROW: |
| return UNumberUnitWidth::UNUM_UNIT_WIDTH_NARROW; |
| } |
| } |
| |
| UNumberSignDisplay ToUNumberSignDisplay(SignDisplay sign_display, |
| CurrencySign currency_sign) { |
| switch (sign_display) { |
| case SignDisplay::AUTO: |
| if (currency_sign == CurrencySign::ACCOUNTING) { |
| return UNumberSignDisplay::UNUM_SIGN_ACCOUNTING; |
| } |
| DCHECK(currency_sign == CurrencySign::STANDARD); |
| return UNumberSignDisplay::UNUM_SIGN_AUTO; |
| case SignDisplay::NEVER: |
| return UNumberSignDisplay::UNUM_SIGN_NEVER; |
| case SignDisplay::ALWAYS: |
| if (currency_sign == CurrencySign::ACCOUNTING) { |
| return UNumberSignDisplay::UNUM_SIGN_ACCOUNTING_ALWAYS; |
| } |
| DCHECK(currency_sign == CurrencySign::STANDARD); |
| return UNumberSignDisplay::UNUM_SIGN_ALWAYS; |
| case SignDisplay::EXCEPT_ZERO: |
| if (currency_sign == CurrencySign::ACCOUNTING) { |
| return UNumberSignDisplay::UNUM_SIGN_ACCOUNTING_EXCEPT_ZERO; |
| } |
| DCHECK(currency_sign == CurrencySign::STANDARD); |
| return UNumberSignDisplay::UNUM_SIGN_EXCEPT_ZERO; |
| } |
| } |
| |
| icu::number::Notation ToICUNotation(Notation notation, |
| CompactDisplay compact_display) { |
| switch (notation) { |
| case Notation::STANDARD: |
| return icu::number::Notation::simple(); |
| case Notation::SCIENTIFIC: |
| return icu::number::Notation::scientific(); |
| case Notation::ENGINEERING: |
| return icu::number::Notation::engineering(); |
| // 29. If notation is "compact", then |
| case Notation::COMPACT: |
| // 29. a. Set numberFormat.[[CompactDisplay]] to compactDisplay. |
| if (compact_display == CompactDisplay::SHORT) { |
| return icu::number::Notation::compactShort(); |
| } |
| DCHECK(compact_display == CompactDisplay::LONG); |
| return icu::number::Notation::compactLong(); |
| } |
| } |
| |
| std::map<const std::string, icu::MeasureUnit> CreateUnitMap() { |
| UErrorCode status = U_ZERO_ERROR; |
| int32_t total = icu::MeasureUnit::getAvailable(nullptr, 0, status); |
| CHECK(U_FAILURE(status)); |
| status = U_ZERO_ERROR; |
| // See the list in ecma402 #sec-issanctionedsimpleunitidentifier |
| std::set<std::string> sanctioned( |
| {"acre", "bit", "byte", "celsius", |
| "centimeter", "day", "degree", "fahrenheit", |
| "foot", "gigabit", "gigabyte", "gram", |
| "hectare", "hour", "inch", "kilobit", |
| "kilobyte", "kilogram", "kilometer", "megabit", |
| "megabyte", "meter", "mile", "mile-scandinavian", |
| "millimeter", "millisecond", "minute", "month", |
| "ounce", "percent", "petabyte", "pound", |
| "second", "stone", "terabit", "terabyte", |
| "week", "yard", "year"}); |
| std::vector<icu::MeasureUnit> units(total); |
| total = icu::MeasureUnit::getAvailable(units.data(), total, status); |
| CHECK(U_SUCCESS(status)); |
| std::map<const std::string, icu::MeasureUnit> map; |
| for (auto it = units.begin(); it != units.end(); ++it) { |
| // Need to skip none/percent |
| if (sanctioned.count(it->getSubtype()) > 0 && |
| strcmp("none", it->getType()) != 0) { |
| map[it->getSubtype()] = *it; |
| } |
| } |
| return map; |
| } |
| |
| class UnitFactory { |
| public: |
| UnitFactory() : map_(CreateUnitMap()) {} |
| virtual ~UnitFactory() {} |
| |
| // ecma402 #sec-issanctionedsimpleunitidentifier |
| icu::MeasureUnit create(const std::string& unitIdentifier) { |
| // 1. If unitIdentifier is in the following list, return true. |
| auto found = map_.find(unitIdentifier); |
| if (found != map_.end()) { |
| return found->second; |
| } |
| // 2. Return false. |
| return icu::NoUnit::base(); |
| } |
| |
| private: |
| std::map<const std::string, icu::MeasureUnit> map_; |
| }; |
| |
| // ecma402 #sec-issanctionedsimpleunitidentifier |
| icu::MeasureUnit IsSanctionedUnitIdentifier(const std::string& unit) { |
| static base::LazyInstance<UnitFactory>::type factory = |
| LAZY_INSTANCE_INITIALIZER; |
| return factory.Pointer()->create(unit); |
| } |
| |
| // ecma402 #sec-iswellformedunitidentifier |
| Maybe<std::pair<icu::MeasureUnit, icu::MeasureUnit>> IsWellFormedUnitIdentifier( |
| Isolate* isolate, const std::string& unit) { |
| icu::MeasureUnit result = IsSanctionedUnitIdentifier(unit); |
| icu::MeasureUnit none = icu::NoUnit::base(); |
| // 1. If the result of IsSanctionedUnitIdentifier(unitIdentifier) is true, |
| // then |
| if (result != none) { |
| // a. Return true. |
| std::pair<icu::MeasureUnit, icu::MeasureUnit> pair(result, none); |
| return Just(pair); |
| } |
| // 2. If the substring "-per-" does not occur exactly once in unitIdentifier, |
| // then |
| size_t first_per = unit.find("-per-"); |
| if (first_per == std::string::npos || |
| unit.find("-per-", first_per + 5) != std::string::npos) { |
| // a. Return false. |
| return Nothing<std::pair<icu::MeasureUnit, icu::MeasureUnit>>(); |
| } |
| // 3. Let numerator be the substring of unitIdentifier from the beginning to |
| // just before "-per-". |
| std::string numerator = unit.substr(0, first_per); |
| |
| // 4. If the result of IsSanctionedUnitIdentifier(numerator) is false, then |
| result = IsSanctionedUnitIdentifier(numerator); |
| if (result == none) { |
| // a. Return false. |
| return Nothing<std::pair<icu::MeasureUnit, icu::MeasureUnit>>(); |
| } |
| // 5. Let denominator be the substring of unitIdentifier from just after |
| // "-per-" to the end. |
| std::string denominator = unit.substr(first_per + 5); |
| |
| // 6. If the result of IsSanctionedUnitIdentifier(denominator) is false, then |
| icu::MeasureUnit den_result = IsSanctionedUnitIdentifier(denominator); |
| if (den_result == none) { |
| // a. Return false. |
| return Nothing<std::pair<icu::MeasureUnit, icu::MeasureUnit>>(); |
| } |
| // 7. Return true. |
| std::pair<icu::MeasureUnit, icu::MeasureUnit> pair(result, den_result); |
| return Just(pair); |
| } |
| |
| // ecma-402/#sec-currencydigits |
| // The currency is expected to an all upper case string value. |
| int CurrencyDigits(const icu::UnicodeString& currency) { |
| UErrorCode status = U_ZERO_ERROR; |
| uint32_t fraction_digits = ucurr_getDefaultFractionDigits( |
| reinterpret_cast<const UChar*>(currency.getBuffer()), &status); |
| // For missing currency codes, default to the most common, 2 |
| return U_SUCCESS(status) ? fraction_digits : 2; |
| } |
| |
| bool IsAToZ(char ch) { return IsInRange(AsciiAlphaToLower(ch), 'a', 'z'); } |
| |
| // ecma402/#sec-iswellformedcurrencycode |
| bool IsWellFormedCurrencyCode(const std::string& currency) { |
| // Verifies that the input is a well-formed ISO 4217 currency code. |
| // ecma402/#sec-currency-codes |
| // 2. If the number of elements in normalized is not 3, return false. |
| if (currency.length() != 3) return false; |
| // 1. Let normalized be the result of mapping currency to upper case as |
| // described in 6.1. |
| // |
| // 3. If normalized contains any character that is not in |
| // the range "A" to "Z" (U+0041 to U+005A), return false. |
| // |
| // 4. Return true. |
| // Don't uppercase to test. It could convert invalid code into a valid one. |
| // For example \u00DFP (Eszett+P) becomes SSP. |
| return (IsAToZ(currency[0]) && IsAToZ(currency[1]) && IsAToZ(currency[2])); |
| } |
| |
| // Return the style as a String. |
| Handle<String> StyleAsString(Isolate* isolate, JSNumberFormat::Style style) { |
| switch (style) { |
| case JSNumberFormat::Style::PERCENT: |
| return ReadOnlyRoots(isolate).percent_string_handle(); |
| case JSNumberFormat::Style::CURRENCY: |
| return ReadOnlyRoots(isolate).currency_string_handle(); |
| case JSNumberFormat::Style::UNIT: |
| return ReadOnlyRoots(isolate).unit_string_handle(); |
| case JSNumberFormat::Style::DECIMAL: |
| return ReadOnlyRoots(isolate).decimal_string_handle(); |
| } |
| UNREACHABLE(); |
| } |
| |
| // Parse the 'currencyDisplay' from the skeleton. |
| Handle<String> CurrencyDisplayString(Isolate* isolate, |
| const icu::UnicodeString& skeleton) { |
| // Ex: skeleton as |
| // "currency/TWD .00 rounding-mode-half-up unit-width-iso-code" |
| if (skeleton.indexOf("unit-width-iso-code") >= 0) { |
| return ReadOnlyRoots(isolate).code_string_handle(); |
| } |
| // Ex: skeleton as |
| // "currency/TWD .00 rounding-mode-half-up unit-width-full-name;" |
| if (skeleton.indexOf("unit-width-full-name") >= 0) { |
| return ReadOnlyRoots(isolate).name_string_handle(); |
| } |
| // Ex: skeleton as |
| // "currency/TWD .00 rounding-mode-half-up unit-width-narrow; |
| if (skeleton.indexOf("unit-width-narrow") >= 0) { |
| return ReadOnlyRoots(isolate).narrowSymbol_string_handle(); |
| } |
| // Ex: skeleton as "currency/TWD .00 rounding-mode-half-up" |
| return ReadOnlyRoots(isolate).symbol_string_handle(); |
| } |
| |
| // Return true if there are no "group-off" in the skeleton. |
| bool UseGroupingFromSkeleton(const icu::UnicodeString& skeleton) { |
| return skeleton.indexOf("group-off") == -1; |
| } |
| |
| // Parse currency code from skeleton. For example, skeleton as |
| // "currency/TWD .00 rounding-mode-half-up unit-width-full-name;" |
| std::string CurrencyFromSkeleton(const icu::UnicodeString& skeleton) { |
| std::string str; |
| str = skeleton.toUTF8String<std::string>(str); |
| std::string search("currency/"); |
| size_t index = str.find(search); |
| if (index == str.npos) return ""; |
| return str.substr(index + search.size(), 3); |
| } |
| |
| // Return CurrencySign as string based on skeleton. |
| Handle<String> CurrencySignString(Isolate* isolate, |
| const icu::UnicodeString& skeleton) { |
| // Ex: skeleton as |
| // "currency/TWD .00 rounding-mode-half-up sign-accounting-always" OR |
| // "currency/TWD .00 rounding-mode-half-up sign-accounting-except-zero" |
| if (skeleton.indexOf("sign-accounting") >= 0) { |
| return ReadOnlyRoots(isolate).accounting_string_handle(); |
| } |
| return ReadOnlyRoots(isolate).standard_string_handle(); |
| } |
| |
| // Return UnitDisplay as string based on skeleton. |
| Handle<String> UnitDisplayString(Isolate* isolate, |
| const icu::UnicodeString& skeleton) { |
| // Ex: skeleton as |
| // "measure-unit/length-meter .### rounding-mode-half-up unit-width-full-name" |
| if (skeleton.indexOf("unit-width-full-name") >= 0) { |
| return ReadOnlyRoots(isolate).long_string_handle(); |
| } |
| // Ex: skeleton as |
| // "measure-unit/length-meter .### rounding-mode-half-up unit-width-narrow". |
| if (skeleton.indexOf("unit-width-narrow") >= 0) { |
| return ReadOnlyRoots(isolate).narrow_string_handle(); |
| } |
| // Ex: skeleton as |
| // "measure-unit/length-foot .### rounding-mode-half-up" |
| return ReadOnlyRoots(isolate).short_string_handle(); |
| } |
| |
| // Parse Notation from skeleton. |
| Notation NotationFromSkeleton(const icu::UnicodeString& skeleton) { |
| // Ex: skeleton as |
| // "scientific .### rounding-mode-half-up" |
| if (skeleton.indexOf("scientific") >= 0) { |
| return Notation::SCIENTIFIC; |
| } |
| // Ex: skeleton as |
| // "engineering .### rounding-mode-half-up" |
| if (skeleton.indexOf("engineering") >= 0) { |
| return Notation::ENGINEERING; |
| } |
| // Ex: skeleton as |
| // "compact-short .### rounding-mode-half-up" or |
| // "compact-long .### rounding-mode-half-up |
| if (skeleton.indexOf("compact-") >= 0) { |
| return Notation::COMPACT; |
| } |
| // Ex: skeleton as |
| // "measure-unit/length-foot .### rounding-mode-half-up" |
| return Notation::STANDARD; |
| } |
| |
| Handle<String> NotationAsString(Isolate* isolate, Notation notation) { |
| switch (notation) { |
| case Notation::SCIENTIFIC: |
| return ReadOnlyRoots(isolate).scientific_string_handle(); |
| case Notation::ENGINEERING: |
| return ReadOnlyRoots(isolate).engineering_string_handle(); |
| case Notation::COMPACT: |
| return ReadOnlyRoots(isolate).compact_string_handle(); |
| case Notation::STANDARD: |
| return ReadOnlyRoots(isolate).standard_string_handle(); |
| } |
| UNREACHABLE(); |
| } |
| |
| // Return CompactString as string based on skeleton. |
| Handle<String> CompactDisplayString(Isolate* isolate, |
| const icu::UnicodeString& skeleton) { |
| // Ex: skeleton as |
| // "compact-long .### rounding-mode-half-up" |
| if (skeleton.indexOf("compact-long") >= 0) { |
| return ReadOnlyRoots(isolate).long_string_handle(); |
| } |
| // Ex: skeleton as |
| // "compact-short .### rounding-mode-half-up" |
| DCHECK_GE(skeleton.indexOf("compact-short"), 0); |
| return ReadOnlyRoots(isolate).short_string_handle(); |
| } |
| |
| // Return SignDisplay as string based on skeleton. |
| Handle<String> SignDisplayString(Isolate* isolate, |
| const icu::UnicodeString& skeleton) { |
| // Ex: skeleton as |
| // "currency/TWD .00 rounding-mode-half-up sign-never" |
| if (skeleton.indexOf("sign-never") >= 0) { |
| return ReadOnlyRoots(isolate).never_string_handle(); |
| } |
| // Ex: skeleton as |
| // ".### rounding-mode-half-up sign-always" or |
| // "currency/TWD .00 rounding-mode-half-up sign-accounting-always" |
| if (skeleton.indexOf("sign-always") >= 0 || |
| skeleton.indexOf("sign-accounting-always") >= 0) { |
| return ReadOnlyRoots(isolate).always_string_handle(); |
| } |
| // Ex: skeleton as |
| // "currency/TWD .00 rounding-mode-half-up sign-accounting-except-zero" or |
| // "currency/TWD .00 rounding-mode-half-up sign-except-zero" |
| if (skeleton.indexOf("sign-accounting-except-zero") >= 0 || |
| skeleton.indexOf("sign-except-zero") >= 0) { |
| return ReadOnlyRoots(isolate).exceptZero_string_handle(); |
| } |
| return ReadOnlyRoots(isolate).auto_string_handle(); |
| } |
| |
| } // anonymous namespace |
| |
| // Return the minimum integer digits by counting the number of '0' after |
| // "integer-width/+" in the skeleton. |
| // Ex: Return 15 for skeleton as |
| // “currency/TWD .00 rounding-mode-half-up integer-width/+000000000000000” |
| // 1 |
| // 123456789012345 |
| // Return default value as 1 if there are no "integer-width/+". |
| int32_t JSNumberFormat::MinimumIntegerDigitsFromSkeleton( |
| const icu::UnicodeString& skeleton) { |
| // count the number of 0 after "integer-width/+" |
| icu::UnicodeString search("integer-width/+"); |
| int32_t index = skeleton.indexOf(search); |
| if (index < 0) return 1; // return 1 if cannot find it. |
| index += search.length(); |
| int32_t matched = 0; |
| while (index < skeleton.length() && skeleton[index] == '0') { |
| matched++; |
| index++; |
| } |
| CHECK_GT(matched, 0); |
| return matched; |
| } |
| |
| // Return true if there are fraction digits, false if not. |
| // The minimum fraction digits is the number of '0' after '.' in the skeleton |
| // The maximum fraction digits is the number of '#' after the above '0's plus |
| // the minimum fraction digits. |
| // For example, as skeleton “.000#### rounding-mode-half-up” |
| // 123 |
| // 4567 |
| // Set The minimum as 3 and maximum as 7. |
| bool JSNumberFormat::FractionDigitsFromSkeleton( |
| const icu::UnicodeString& skeleton, int32_t* minimum, int32_t* maximum) { |
| icu::UnicodeString search("."); |
| int32_t index = skeleton.indexOf(search); |
| if (index < 0) return false; |
| *minimum = 0; |
| index++; // skip the '.' |
| while (index < skeleton.length() && skeleton[index] == '0') { |
| (*minimum)++; |
| index++; |
| } |
| *maximum = *minimum; |
| while (index < skeleton.length() && skeleton[index] == '#') { |
| (*maximum)++; |
| index++; |
| } |
| return true; |
| } |
| |
| // Return true if there are significant digits, false if not. |
| // The minimum significant digits is the number of '@' in the skeleton |
| // The maximum significant digits is the number of '#' after these '@'s plus |
| // the minimum significant digits. |
| // Ex: Skeleton as "@@@@@####### rounding-mode-half-up" |
| // 12345 |
| // 6789012 |
| // Set The minimum as 5 and maximum as 12. |
| bool JSNumberFormat::SignificantDigitsFromSkeleton( |
| const icu::UnicodeString& skeleton, int32_t* minimum, int32_t* maximum) { |
| icu::UnicodeString search("@"); |
| int32_t index = skeleton.indexOf(search); |
| if (index < 0) return false; |
| *minimum = 1; |
| index++; // skip the first '@' |
| while (index < skeleton.length() && skeleton[index] == '@') { |
| (*minimum)++; |
| index++; |
| } |
| *maximum = *minimum; |
| while (index < skeleton.length() && skeleton[index] == '#') { |
| (*maximum)++; |
| index++; |
| } |
| return true; |
| } |
| |
| namespace { |
| |
| // Ex: percent .### rounding-mode-half-up |
| // Special case for "percent" |
| // Ex: "measure-unit/length-kilometer per-measure-unit/duration-hour .### |
| // rounding-mode-half-up" should return "kilometer-per-unit". |
| // Ex: "measure-unit/duration-year .### rounding-mode-half-up" should return |
| // "year". |
| std::string UnitFromSkeleton(const icu::UnicodeString& skeleton) { |
| std::string str; |
| str = skeleton.toUTF8String<std::string>(str); |
| // Special case for "percent" first. |
| if (str.find("percent") != str.npos) { |
| return "percent"; |
| } |
| std::string search("measure-unit/"); |
| size_t begin = str.find(search); |
| if (begin == str.npos) { |
| return ""; |
| } |
| // Skip the type (ex: "length"). |
| // "measure-unit/length-kilometer per-measure-unit/duration-hour" |
| // b |
| begin = str.find("-", begin + search.size()); |
| if (begin == str.npos) { |
| return ""; |
| } |
| begin++; // Skip the '-'. |
| // Find the end of the subtype. |
| size_t end = str.find(" ", begin); |
| // "measure-unit/length-kilometer per-measure-unit/duration-hour" |
| // b e |
| if (end == str.npos) { |
| end = str.size(); |
| return str.substr(begin, end - begin); |
| } |
| // "measure-unit/length-kilometer per-measure-unit/duration-hour" |
| // b e |
| // [result ] |
| std::string result = str.substr(begin, end - begin); |
| begin = end + 1; |
| // "measure-unit/length-kilometer per-measure-unit/duration-hour" |
| // [result ]eb |
| std::string search_per("per-measure-unit/"); |
| begin = str.find(search_per, begin); |
| // "measure-unit/length-kilometer per-measure-unit/duration-hour" |
| // [result ]e b |
| if (begin == str.npos) { |
| return result; |
| } |
| // Skip the type (ex: "duration"). |
| begin = str.find("-", begin + search_per.size()); |
| // "measure-unit/length-kilometer per-measure-unit/duration-hour" |
| // [result ]e b |
| if (begin == str.npos) { |
| return result; |
| } |
| begin++; // Skip the '-'. |
| // "measure-unit/length-kilometer per-measure-unit/duration-hour" |
| // [result ]e b |
| end = str.find(" ", begin); |
| if (end == str.npos) { |
| end = str.size(); |
| } |
| // "measure-unit/length-kilometer per-measure-unit/duration-hour" |
| // [result ] b e |
| return result + "-per-" + str.substr(begin, end - begin); |
| } |
| |
| } // anonymous namespace |
| |
| icu::number::LocalizedNumberFormatter |
| JSNumberFormat::SetDigitOptionsToFormatter( |
| const icu::number::LocalizedNumberFormatter& icu_number_formatter, |
| const Intl::NumberFormatDigitOptions& digit_options) { |
| icu::number::LocalizedNumberFormatter result = icu_number_formatter; |
| if (digit_options.minimum_integer_digits > 1) { |
| result = result.integerWidth(icu::number::IntegerWidth::zeroFillTo( |
| digit_options.minimum_integer_digits)); |
| } |
| if (FLAG_harmony_intl_numberformat_unified) { |
| // Value -1 of minimum_significant_digits represent the roundingtype is |
| // "compact-rounding". |
| if (digit_options.minimum_significant_digits < 0) { |
| return result; |
| } |
| } |
| icu::number::Precision precision = |
| (digit_options.minimum_significant_digits > 0) |
| ? icu::number::Precision::minMaxSignificantDigits( |
| digit_options.minimum_significant_digits, |
| digit_options.maximum_significant_digits) |
| : icu::number::Precision::minMaxFraction( |
| digit_options.minimum_fraction_digits, |
| digit_options.maximum_fraction_digits); |
| |
| return result.precision(precision); |
| } |
| |
| // static |
| // ecma402 #sec-intl.numberformat.prototype.resolvedoptions |
| Handle<JSObject> JSNumberFormat::ResolvedOptions( |
| Isolate* isolate, Handle<JSNumberFormat> number_format) { |
| Factory* factory = isolate->factory(); |
| |
| UErrorCode status = U_ZERO_ERROR; |
| icu::number::LocalizedNumberFormatter* icu_number_formatter = |
| number_format->icu_number_formatter().raw(); |
| icu::UnicodeString skeleton = icu_number_formatter->toSkeleton(status); |
| CHECK(U_SUCCESS(status)); |
| |
| // 4. Let options be ! ObjectCreate(%ObjectPrototype%). |
| Handle<JSObject> options = factory->NewJSObject(isolate->object_function()); |
| |
| Handle<String> locale = Handle<String>(number_format->locale(), isolate); |
| |
| std::unique_ptr<char[]> locale_str = locale->ToCString(); |
| icu::Locale icu_locale = Intl::CreateICULocale(locale_str.get()); |
| |
| std::string numbering_system = Intl::GetNumberingSystem(icu_locale); |
| |
| // 5. For each row of Table 4, except the header row, in table order, do |
| // Table 4: Resolved Options of NumberFormat Instances |
| // Internal Slot Property |
| // [[Locale]] "locale" |
| // [[NumberingSystem]] "numberingSystem" |
| // [[Style]] "style" |
| // [[Currency]] "currency" |
| // [[CurrencyDisplay]] "currencyDisplay" |
| // [[MinimumIntegerDigits]] "minimumIntegerDigits" |
| // [[MinimumFractionDigits]] "minimumFractionDigits" |
| // [[MaximumFractionDigits]] "maximumFractionDigits" |
| // [[MinimumSignificantDigits]] "minimumSignificantDigits" |
| // [[MaximumSignificantDigits]] "maximumSignificantDigits" |
| // [[UseGrouping]] "useGrouping" |
| CHECK(JSReceiver::CreateDataProperty(isolate, options, |
| factory->locale_string(), locale, |
| Just(kDontThrow)) |
| .FromJust()); |
| if (!numbering_system.empty()) { |
| CHECK(JSReceiver::CreateDataProperty( |
| isolate, options, factory->numberingSystem_string(), |
| factory->NewStringFromAsciiChecked(numbering_system.c_str()), |
| Just(kDontThrow)) |
| .FromJust()); |
| } |
| JSNumberFormat::Style style = number_format->style(); |
| CHECK(JSReceiver::CreateDataProperty( |
| isolate, options, factory->style_string(), |
| StyleAsString(isolate, style), Just(kDontThrow)) |
| .FromJust()); |
| std::string currency = CurrencyFromSkeleton(skeleton); |
| if (!currency.empty()) { |
| CHECK(JSReceiver::CreateDataProperty( |
| isolate, options, factory->currency_string(), |
| factory->NewStringFromAsciiChecked(currency.c_str()), |
| Just(kDontThrow)) |
| .FromJust()); |
| |
| CHECK(JSReceiver::CreateDataProperty( |
| isolate, options, factory->currencyDisplay_string(), |
| CurrencyDisplayString(isolate, skeleton), Just(kDontThrow)) |
| .FromJust()); |
| if (FLAG_harmony_intl_numberformat_unified) { |
| CHECK(JSReceiver::CreateDataProperty( |
| isolate, options, factory->currencySign_string(), |
| CurrencySignString(isolate, skeleton), Just(kDontThrow)) |
| .FromJust()); |
| } |
| } |
| |
| if (FLAG_harmony_intl_numberformat_unified) { |
| if (style == JSNumberFormat::Style::UNIT) { |
| std::string unit = UnitFromSkeleton(skeleton); |
| if (!unit.empty()) { |
| CHECK(JSReceiver::CreateDataProperty( |
| isolate, options, factory->unit_string(), |
| isolate->factory()->NewStringFromAsciiChecked(unit.c_str()), |
| Just(kDontThrow)) |
| .FromJust()); |
| } |
| CHECK(JSReceiver::CreateDataProperty( |
| isolate, options, factory->unitDisplay_string(), |
| UnitDisplayString(isolate, skeleton), Just(kDontThrow)) |
| .FromJust()); |
| } |
| } |
| |
| CHECK( |
| JSReceiver::CreateDataProperty( |
| isolate, options, factory->minimumIntegerDigits_string(), |
| factory->NewNumberFromInt(MinimumIntegerDigitsFromSkeleton(skeleton)), |
| Just(kDontThrow)) |
| .FromJust()); |
| int32_t minimum = 0, maximum = 0; |
| bool output_fraction = |
| FractionDigitsFromSkeleton(skeleton, &minimum, &maximum); |
| |
| if (!FLAG_harmony_intl_numberformat_unified && !output_fraction) { |
| // Currenct ECMA 402 spec mandate to record (Min|Max)imumFractionDigits |
| // uncondictionally while the unified number proposal eventually will only |
| // record either (Min|Max)imumFractionDigits or |
| // (Min|Max)imumSignaficantDigits Since LocalizedNumberFormatter can only |
| // remember one set, and during 2019-1-17 ECMA402 meeting that the committee |
| // decide not to take a PR to address that prior to the unified number |
| // proposal, we have to add these two 5 bits int into flags to remember the |
| // (Min|Max)imumFractionDigits while (Min|Max)imumSignaficantDigits is |
| // present. |
| // TODO(ftang) remove the following two lines once we ship |
| // int-number-format-unified |
| output_fraction = true; |
| minimum = number_format->minimum_fraction_digits(); |
| maximum = number_format->maximum_fraction_digits(); |
| } |
| if (output_fraction) { |
| CHECK(JSReceiver::CreateDataProperty( |
| isolate, options, factory->minimumFractionDigits_string(), |
| factory->NewNumberFromInt(minimum), Just(kDontThrow)) |
| .FromJust()); |
| CHECK(JSReceiver::CreateDataProperty( |
| isolate, options, factory->maximumFractionDigits_string(), |
| factory->NewNumberFromInt(maximum), Just(kDontThrow)) |
| .FromJust()); |
| } |
| minimum = 0; |
| maximum = 0; |
| if (SignificantDigitsFromSkeleton(skeleton, &minimum, &maximum)) { |
| CHECK(JSReceiver::CreateDataProperty( |
| isolate, options, factory->minimumSignificantDigits_string(), |
| factory->NewNumberFromInt(minimum), Just(kDontThrow)) |
| .FromJust()); |
| CHECK(JSReceiver::CreateDataProperty( |
| isolate, options, factory->maximumSignificantDigits_string(), |
| factory->NewNumberFromInt(maximum), Just(kDontThrow)) |
| .FromJust()); |
| } |
| |
| CHECK(JSReceiver::CreateDataProperty( |
| isolate, options, factory->useGrouping_string(), |
| factory->ToBoolean(UseGroupingFromSkeleton(skeleton)), |
| Just(kDontThrow)) |
| .FromJust()); |
| if (FLAG_harmony_intl_numberformat_unified) { |
| Notation notation = NotationFromSkeleton(skeleton); |
| CHECK(JSReceiver::CreateDataProperty( |
| isolate, options, factory->notation_string(), |
| NotationAsString(isolate, notation), Just(kDontThrow)) |
| .FromJust()); |
| // Only output compactDisplay when notation is compact. |
| if (notation == Notation::COMPACT) { |
| CHECK(JSReceiver::CreateDataProperty( |
| isolate, options, factory->compactDisplay_string(), |
| CompactDisplayString(isolate, skeleton), Just(kDontThrow)) |
| .FromJust()); |
| } |
| CHECK(JSReceiver::CreateDataProperty( |
| isolate, options, factory->signDisplay_string(), |
| SignDisplayString(isolate, skeleton), Just(kDontThrow)) |
| .FromJust()); |
| } |
| return options; |
| } |
| |
| // ecma402/#sec-unwrapnumberformat |
| MaybeHandle<JSNumberFormat> JSNumberFormat::UnwrapNumberFormat( |
| Isolate* isolate, Handle<JSReceiver> format_holder) { |
| // old code copy from NumberFormat::Unwrap that has no spec comment and |
| // compiled but fail unit tests. |
| Handle<Context> native_context = |
| Handle<Context>(isolate->context().native_context(), isolate); |
| Handle<JSFunction> constructor = Handle<JSFunction>( |
| JSFunction::cast(native_context->intl_number_format_function()), isolate); |
| Handle<Object> object; |
| ASSIGN_RETURN_ON_EXCEPTION( |
| isolate, object, |
| Intl::LegacyUnwrapReceiver(isolate, format_holder, constructor, |
| format_holder->IsJSNumberFormat()), |
| JSNumberFormat); |
| // 4. If ... or nf does not have an [[InitializedNumberFormat]] internal slot, |
| // then |
| if (!object->IsJSNumberFormat()) { |
| // a. Throw a TypeError exception. |
| THROW_NEW_ERROR(isolate, |
| NewTypeError(MessageTemplate::kIncompatibleMethodReceiver, |
| isolate->factory()->NewStringFromAsciiChecked( |
| "UnwrapNumberFormat")), |
| JSNumberFormat); |
| } |
| // 5. Return nf. |
| return Handle<JSNumberFormat>::cast(object); |
| } |
| |
| // static |
| MaybeHandle<JSNumberFormat> JSNumberFormat::New(Isolate* isolate, |
| Handle<Map> map, |
| Handle<Object> locales, |
| Handle<Object> options_obj) { |
| Factory* factory = isolate->factory(); |
| |
| // 1. Let requestedLocales be ? CanonicalizeLocaleList(locales). |
| Maybe<std::vector<std::string>> maybe_requested_locales = |
| Intl::CanonicalizeLocaleList(isolate, locales); |
| MAYBE_RETURN(maybe_requested_locales, Handle<JSNumberFormat>()); |
| std::vector<std::string> requested_locales = |
| maybe_requested_locales.FromJust(); |
| |
| // 2. If options is undefined, then |
| if (options_obj->IsUndefined(isolate)) { |
| // 2. a. Let options be ObjectCreate(null). |
| options_obj = isolate->factory()->NewJSObjectWithNullProto(); |
| } else { |
| // 3. Else |
| // 3. a. Let options be ? ToObject(options). |
| ASSIGN_RETURN_ON_EXCEPTION( |
| isolate, options_obj, |
| Object::ToObject(isolate, options_obj, "Intl.NumberFormat"), |
| JSNumberFormat); |
| } |
| |
| // At this point, options_obj can either be a JSObject or a JSProxy only. |
| Handle<JSReceiver> options = Handle<JSReceiver>::cast(options_obj); |
| |
| // 4. Let opt be a new Record. |
| // 5. Let matcher be ? GetOption(options, "localeMatcher", "string", « |
| // "lookup", "best fit" », "best fit"). |
| // 6. Set opt.[[localeMatcher]] to matcher. |
| Maybe<Intl::MatcherOption> maybe_locale_matcher = |
| Intl::GetLocaleMatcher(isolate, options, "Intl.NumberFormat"); |
| MAYBE_RETURN(maybe_locale_matcher, MaybeHandle<JSNumberFormat>()); |
| Intl::MatcherOption matcher = maybe_locale_matcher.FromJust(); |
| |
| std::unique_ptr<char[]> numbering_system_str = nullptr; |
| if (FLAG_harmony_intl_add_calendar_numbering_system) { |
| // 7. Let _numberingSystem_ be ? GetOption(_options_, `"numberingSystem"`, |
| // `"string"`, *undefined*, *undefined*). |
| Maybe<bool> maybe_numberingSystem = Intl::GetNumberingSystem( |
| isolate, options, "Intl.RelativeTimeFormat", &numbering_system_str); |
| // 8. If _numberingSystem_ is not *undefined*, then |
| // a. If _numberingSystem_ does not match the |
| // `(3*8alphanum) *("-" (3*8alphanum))` sequence, throw a *RangeError* |
| // exception. |
| MAYBE_RETURN(maybe_numberingSystem, MaybeHandle<JSNumberFormat>()); |
| } |
| |
| // 7. Let localeData be %NumberFormat%.[[LocaleData]]. |
| // 8. Let r be ResolveLocale(%NumberFormat%.[[AvailableLocales]], |
| // requestedLocales, opt, %NumberFormat%.[[RelevantExtensionKeys]], |
| // localeData). |
| std::set<std::string> relevant_extension_keys{"nu"}; |
| Intl::ResolvedLocale r = |
| Intl::ResolveLocale(isolate, JSNumberFormat::GetAvailableLocales(), |
| requested_locales, matcher, relevant_extension_keys); |
| |
| UErrorCode status = U_ZERO_ERROR; |
| if (numbering_system_str != nullptr) { |
| r.icu_locale.setUnicodeKeywordValue("nu", numbering_system_str.get(), |
| status); |
| CHECK(U_SUCCESS(status)); |
| r.locale = Intl::ToLanguageTag(r.icu_locale).FromJust(); |
| } |
| |
| // 9. Set numberFormat.[[Locale]] to r.[[locale]]. |
| Handle<String> locale_str = |
| isolate->factory()->NewStringFromAsciiChecked(r.locale.c_str()); |
| |
| // 11. Let dataLocale be r.[[dataLocale]]. |
| |
| icu::number::LocalizedNumberFormatter icu_number_formatter = |
| icu::number::NumberFormatter::withLocale(r.icu_locale) |
| .roundingMode(UNUM_ROUND_HALFUP); |
| |
| // 12. Let style be ? GetOption(options, "style", "string", « "decimal", |
| // "percent", "currency" », "decimal"). |
| const char* service = "Intl.NumberFormat"; |
| |
| std::vector<const char*> style_str_values({"decimal", "percent", "currency"}); |
| std::vector<JSNumberFormat::Style> style_enum_values( |
| {JSNumberFormat::Style::DECIMAL, JSNumberFormat::Style::PERCENT, |
| JSNumberFormat::Style::CURRENCY}); |
| if (FLAG_harmony_intl_numberformat_unified) { |
| style_str_values.push_back("unit"); |
| style_enum_values.push_back(JSNumberFormat::Style::UNIT); |
| } |
| Maybe<JSNumberFormat::Style> maybe_style = |
| Intl::GetStringOption<JSNumberFormat::Style>( |
| isolate, options, "style", service, style_str_values, |
| style_enum_values, JSNumberFormat::Style::DECIMAL); |
| MAYBE_RETURN(maybe_style, MaybeHandle<JSNumberFormat>()); |
| JSNumberFormat::Style style = maybe_style.FromJust(); |
| |
| // 13. Set numberFormat.[[Style]] to style. |
| |
| // 14. Let currency be ? GetOption(options, "currency", "string", undefined, |
| // undefined). |
| std::unique_ptr<char[]> currency_cstr; |
| const std::vector<const char*> empty_values = {}; |
| Maybe<bool> found_currency = Intl::GetStringOption( |
| isolate, options, "currency", empty_values, service, ¤cy_cstr); |
| MAYBE_RETURN(found_currency, MaybeHandle<JSNumberFormat>()); |
| |
| std::string currency; |
| // 15. If currency is not undefined, then |
| if (found_currency.FromJust()) { |
| DCHECK_NOT_NULL(currency_cstr.get()); |
| currency = currency_cstr.get(); |
| // 15. a. If the result of IsWellFormedCurrencyCode(currency) is false, |
| // throw a RangeError exception. |
| if (!IsWellFormedCurrencyCode(currency)) { |
| THROW_NEW_ERROR( |
| isolate, |
| NewRangeError(MessageTemplate::kInvalid, |
| factory->NewStringFromStaticChars("currency code"), |
| factory->NewStringFromAsciiChecked(currency.c_str())), |
| JSNumberFormat); |
| } |
| } |
| |
| // 16. If style is "currency" and currency is undefined, throw a TypeError |
| // exception. |
| if (style == JSNumberFormat::Style::CURRENCY && !found_currency.FromJust()) { |
| THROW_NEW_ERROR(isolate, NewTypeError(MessageTemplate::kCurrencyCode), |
| JSNumberFormat); |
| } |
| // 17. If style is "currency", then |
| int c_digits = 0; |
| icu::UnicodeString currency_ustr; |
| if (style == JSNumberFormat::Style::CURRENCY) { |
| // a. Let currency be the result of converting currency to upper case as |
| // specified in 6.1 |
| std::transform(currency.begin(), currency.end(), currency.begin(), toupper); |
| // c. Let cDigits be CurrencyDigits(currency). |
| currency_ustr = currency.c_str(); |
| c_digits = CurrencyDigits(currency_ustr); |
| } |
| |
| // 18. Let currencyDisplay be ? GetOption(options, "currencyDisplay", |
| // "string", « "code", "symbol", "name" », "symbol"). |
| std::vector<const char*> currency_display_str_values( |
| {"code", "symbol", "name"}); |
| std::vector<CurrencyDisplay> currency_display_enum_values( |
| {CurrencyDisplay::CODE, CurrencyDisplay::SYMBOL, CurrencyDisplay::NAME}); |
| if (FLAG_harmony_intl_numberformat_unified) { |
| currency_display_str_values.push_back("narrowSymbol"); |
| currency_display_enum_values.push_back(CurrencyDisplay::NARROW_SYMBOL); |
| } |
| Maybe<CurrencyDisplay> maybe_currency_display = |
| Intl::GetStringOption<CurrencyDisplay>( |
| isolate, options, "currencyDisplay", service, |
| currency_display_str_values, currency_display_enum_values, |
| CurrencyDisplay::SYMBOL); |
| MAYBE_RETURN(maybe_currency_display, MaybeHandle<JSNumberFormat>()); |
| CurrencyDisplay currency_display = maybe_currency_display.FromJust(); |
| |
| CurrencySign currency_sign = CurrencySign::STANDARD; |
| if (FLAG_harmony_intl_numberformat_unified) { |
| // Let currencySign be ? GetOption(options, "currencySign", "string", « |
| // "standard", "accounting" », "standard"). |
| Maybe<CurrencySign> maybe_currency_sign = |
| Intl::GetStringOption<CurrencySign>( |
| isolate, options, "currencySign", service, |
| {"standard", "accounting"}, |
| {CurrencySign::STANDARD, CurrencySign::ACCOUNTING}, |
| CurrencySign::STANDARD); |
| MAYBE_RETURN(maybe_currency_sign, MaybeHandle<JSNumberFormat>()); |
| currency_sign = maybe_currency_sign.FromJust(); |
| |
| // Let unit be ? GetOption(options, "unit", "string", undefined, undefined). |
| std::unique_ptr<char[]> unit_cstr; |
| Maybe<bool> found_unit = Intl::GetStringOption( |
| isolate, options, "unit", empty_values, service, &unit_cstr); |
| MAYBE_RETURN(found_unit, MaybeHandle<JSNumberFormat>()); |
| |
| std::string unit; |
| if (found_unit.FromJust()) { |
| DCHECK_NOT_NULL(unit_cstr.get()); |
| unit = unit_cstr.get(); |
| } |
| |
| // Let unitDisplay be ? GetOption(options, "unitDisplay", "string", « |
| // "short", "narrow", "long" », "short"). |
| Maybe<UnitDisplay> maybe_unit_display = Intl::GetStringOption<UnitDisplay>( |
| isolate, options, "unitDisplay", service, {"short", "narrow", "long"}, |
| {UnitDisplay::SHORT, UnitDisplay::NARROW, UnitDisplay::LONG}, |
| UnitDisplay::SHORT); |
| MAYBE_RETURN(maybe_unit_display, MaybeHandle<JSNumberFormat>()); |
| UnitDisplay unit_display = maybe_unit_display.FromJust(); |
| |
| // If style is "unit", then |
| if (style == JSNumberFormat::Style::UNIT) { |
| // If unit is undefined, throw a TypeError exception. |
| if (unit == "") { |
| THROW_NEW_ERROR( |
| isolate, |
| NewTypeError(MessageTemplate::kInvalidUnit, |
| factory->NewStringFromStaticChars("Intl.NumberFormat"), |
| factory->NewStringFromStaticChars("")), |
| JSNumberFormat); |
| } |
| |
| // If the result of IsWellFormedUnitIdentifier(unit) is false, throw a |
| // RangeError exception. |
| Maybe<std::pair<icu::MeasureUnit, icu::MeasureUnit>> maybe_wellformed = |
| IsWellFormedUnitIdentifier(isolate, unit); |
| if (maybe_wellformed.IsNothing()) { |
| THROW_NEW_ERROR( |
| isolate, |
| NewRangeError( |
| MessageTemplate::kInvalidUnit, |
| factory->NewStringFromStaticChars("Intl.NumberFormat"), |
| factory->NewStringFromAsciiChecked(unit.c_str())), |
| JSNumberFormat); |
| } |
| std::pair<icu::MeasureUnit, icu::MeasureUnit> unit_pair = |
| maybe_wellformed.FromJust(); |
| |
| // Set intlObj.[[Unit]] to unit. |
| if (unit_pair.first != icu::NoUnit::base()) { |
| icu_number_formatter = icu_number_formatter.unit(unit_pair.first); |
| } |
| if (unit_pair.second != icu::NoUnit::base()) { |
| icu_number_formatter = icu_number_formatter.perUnit(unit_pair.second); |
| } |
| |
| // The default unitWidth is SHORT in ICU and that mapped from |
| // Symbol so we can skip the setting for optimization. |
| if (unit_display != UnitDisplay::SHORT) { |
| icu_number_formatter = |
| icu_number_formatter.unitWidth(ToUNumberUnitWidth(unit_display)); |
| } |
| } |
| } |
| |
| if (style == JSNumberFormat::Style::PERCENT) { |
| icu_number_formatter = icu_number_formatter.unit(icu::NoUnit::percent()) |
| .scale(icu::number::Scale::powerOfTen(2)); |
| } |
| |
| if (style == JSNumberFormat::Style::CURRENCY) { |
| // 19. If style is "currency", set numberFormat.[[CurrencyDisplay]] to |
| // currencyDisplay. |
| |
| // 17.b. Set numberFormat.[[Currency]] to currency. |
| if (!currency_ustr.isEmpty()) { |
| Handle<String> currency_string; |
| ASSIGN_RETURN_ON_EXCEPTION(isolate, currency_string, |
| Intl::ToString(isolate, currency_ustr), |
| JSNumberFormat); |
| |
| icu_number_formatter = icu_number_formatter.unit( |
| icu::CurrencyUnit(currency_ustr.getBuffer(), status)); |
| CHECK(U_SUCCESS(status)); |
| // The default unitWidth is SHORT in ICU and that mapped from |
| // Symbol so we can skip the setting for optimization. |
| if (currency_display != CurrencyDisplay::SYMBOL) { |
| icu_number_formatter = icu_number_formatter.unitWidth( |
| ToUNumberUnitWidth(currency_display)); |
| } |
| CHECK(U_SUCCESS(status)); |
| } |
| } |
| |
| // 23. If style is "currency", then |
| int mnfd_default, mxfd_default; |
| if (style == JSNumberFormat::Style::CURRENCY) { |
| // a. Let mnfdDefault be cDigits. |
| // b. Let mxfdDefault be cDigits. |
| mnfd_default = c_digits; |
| mxfd_default = c_digits; |
| // 24. Else, |
| } else { |
| // a. Let mnfdDefault be 0. |
| mnfd_default = 0; |
| // b. If style is "percent", then |
| if (style == JSNumberFormat::Style::PERCENT) { |
| // i. Let mxfdDefault be 0. |
| mxfd_default = 0; |
| } else { |
| // c. Else, |
| // i. Let mxfdDefault be 3. |
| mxfd_default = 3; |
| } |
| } |
| |
| Notation notation = Notation::STANDARD; |
| if (FLAG_harmony_intl_numberformat_unified) { |
| // 25. Let notation be ? GetOption(options, "notation", "string", « |
| // "standard", "scientific", "engineering", "compact" », "standard"). |
| Maybe<Notation> maybe_notation = Intl::GetStringOption<Notation>( |
| isolate, options, "notation", service, |
| {"standard", "scientific", "engineering", "compact"}, |
| {Notation::STANDARD, Notation::SCIENTIFIC, Notation::ENGINEERING, |
| Notation::COMPACT}, |
| Notation::STANDARD); |
| MAYBE_RETURN(maybe_notation, MaybeHandle<JSNumberFormat>()); |
| notation = maybe_notation.FromJust(); |
| } |
| |
| // 27. Perform ? SetNumberFormatDigitOptions(numberFormat, options, |
| // mnfdDefault, mxfdDefault). |
| Maybe<Intl::NumberFormatDigitOptions> maybe_digit_options = |
| Intl::SetNumberFormatDigitOptions(isolate, options, mnfd_default, |
| mxfd_default, |
| notation == Notation::COMPACT); |
| MAYBE_RETURN(maybe_digit_options, Handle<JSNumberFormat>()); |
| Intl::NumberFormatDigitOptions digit_options = maybe_digit_options.FromJust(); |
| icu_number_formatter = JSNumberFormat::SetDigitOptionsToFormatter( |
| icu_number_formatter, digit_options); |
| |
| if (FLAG_harmony_intl_numberformat_unified) { |
| // 28. Let compactDisplay be ? GetOption(options, "compactDisplay", |
| // "string", « "short", "long" », "short"). |
| Maybe<CompactDisplay> maybe_compact_display = |
| Intl::GetStringOption<CompactDisplay>( |
| isolate, options, "compactDisplay", service, {"short", "long"}, |
| {CompactDisplay::SHORT, CompactDisplay::LONG}, |
| CompactDisplay::SHORT); |
| MAYBE_RETURN(maybe_compact_display, MaybeHandle<JSNumberFormat>()); |
| CompactDisplay compact_display = maybe_compact_display.FromJust(); |
| |
| // 26. Set numberFormat.[[Notation]] to notation. |
| // The default notation in ICU is Simple, which mapped from STANDARD |
| // so we can skip setting it. |
| if (notation != Notation::STANDARD) { |
| icu_number_formatter = icu_number_formatter.notation( |
| ToICUNotation(notation, compact_display)); |
| } |
| } |
| // 30. Let useGrouping be ? GetOption(options, "useGrouping", "boolean", |
| // undefined, true). |
| bool use_grouping = true; |
| Maybe<bool> found_use_grouping = Intl::GetBoolOption( |
| isolate, options, "useGrouping", service, &use_grouping); |
| MAYBE_RETURN(found_use_grouping, MaybeHandle<JSNumberFormat>()); |
| // 31. Set numberFormat.[[UseGrouping]] to useGrouping. |
| if (!use_grouping) { |
| icu_number_formatter = icu_number_formatter.grouping( |
| UNumberGroupingStrategy::UNUM_GROUPING_OFF); |
| } |
| |
| if (FLAG_harmony_intl_numberformat_unified) { |
| // 32. Let signDisplay be ? GetOption(options, "signDisplay", "string", « |
| // "auto", "never", "always", "exceptZero" », "auto"). |
| Maybe<SignDisplay> maybe_sign_display = Intl::GetStringOption<SignDisplay>( |
| isolate, options, "signDisplay", service, |
| {"auto", "never", "always", "exceptZero"}, |
| {SignDisplay::AUTO, SignDisplay::NEVER, SignDisplay::ALWAYS, |
| SignDisplay::EXCEPT_ZERO}, |
| SignDisplay::AUTO); |
| MAYBE_RETURN(maybe_sign_display, MaybeHandle<JSNumberFormat>()); |
| SignDisplay sign_display = maybe_sign_display.FromJust(); |
| |
| // 33. Set numberFormat.[[SignDisplay]] to signDisplay. |
| // The default sign in ICU is UNUM_SIGN_AUTO which is mapped from |
| // SignDisplay::AUTO and CurrencySign::STANDARD so we can skip setting |
| // under that values for optimization. |
| if (sign_display != SignDisplay::AUTO || |
| currency_sign != CurrencySign::STANDARD) { |
| icu_number_formatter = icu_number_formatter.sign( |
| ToUNumberSignDisplay(sign_display, currency_sign)); |
| } |
| } |
| |
| // 25. Let dataLocaleData be localeData.[[<dataLocale>]]. |
| // |
| // 26. Let patterns be dataLocaleData.[[patterns]]. |
| // |
| // 27. Assert: patterns is a record (see 11.3.3). |
| // |
| // 28. Let stylePatterns be patterns.[[<style>]]. |
| // |
| // 29. Set numberFormat.[[PositivePattern]] to |
| // stylePatterns.[[positivePattern]]. |
| // |
| // 30. Set numberFormat.[[NegativePattern]] to |
| // stylePatterns.[[negativePattern]]. |
| // |
| Handle<Managed<icu::number::LocalizedNumberFormatter>> |
| managed_number_formatter = |
| Managed<icu::number::LocalizedNumberFormatter>::FromRawPtr( |
| isolate, 0, |
| new icu::number::LocalizedNumberFormatter(icu_number_formatter)); |
| |
| // Now all properties are ready, so we can allocate the result object. |
| Handle<JSNumberFormat> number_format = Handle<JSNumberFormat>::cast( |
| isolate->factory()->NewFastOrSlowJSObjectFromMap(map)); |
| DisallowHeapAllocation no_gc; |
| number_format->set_flags(0); |
| number_format->set_style(style); |
| number_format->set_locale(*locale_str); |
| |
| if (digit_options.minimum_significant_digits > 0) { |
| // The current ECMA 402 spec mandates recording (Min|Max)imumFractionDigits |
| // unconditionally, while the unified number proposal eventually will only |
| // record either (Min|Max)imumFractionDigits or |
| // (Min|Max)imumSignificantDigits. Since LocalizedNumberFormatter can only |
| // remember one set, and during 2019-1-17 ECMA402 meeting the committee |
| // decided not to take a PR to address that prior to the unified number |
| // proposal, we have to add these two 5-bit ints into flags to remember the |
| // (Min|Max)imumFractionDigits while (Min|Max)imumSignificantDigits is |
| // present. |
| // TODO(ftang) remove the following two lines once we ship |
| // int-number-format-unified |
| number_format->set_minimum_fraction_digits( |
| digit_options.minimum_fraction_digits); |
| number_format->set_maximum_fraction_digits( |
| digit_options.maximum_fraction_digits); |
| } |
| |
| number_format->set_icu_number_formatter(*managed_number_formatter); |
| number_format->set_bound_format(*factory->undefined_value()); |
| |
| // 31. Return numberFormat. |
| return number_format; |
| } |
| |
| namespace { |
| Maybe<icu::UnicodeString> IcuFormatNumber( |
| Isolate* isolate, |
| const icu::number::LocalizedNumberFormatter& number_format, |
| Handle<Object> numeric_obj, icu::FieldPositionIterator* fp_iter) { |
| // If it is BigInt, handle it differently. |
| UErrorCode status = U_ZERO_ERROR; |
| icu::number::FormattedNumber formatted; |
| if (numeric_obj->IsBigInt()) { |
| Handle<BigInt> big_int = Handle<BigInt>::cast(numeric_obj); |
| Handle<String> big_int_string; |
| ASSIGN_RETURN_ON_EXCEPTION_VALUE(isolate, big_int_string, |
| BigInt::ToString(isolate, big_int), |
| Nothing<icu::UnicodeString>()); |
| formatted = number_format.formatDecimal( |
| {big_int_string->ToCString().get(), big_int_string->length()}, status); |
| } else { |
| double number = numeric_obj->Number(); |
| formatted = number_format.formatDouble(number, status); |
| } |
| if (U_FAILURE(status)) { |
| // This happen because of icu data trimming trim out "unit". |
| // See https://bugs.chromium.org/p/v8/issues/detail?id=8641 |
| THROW_NEW_ERROR_RETURN_VALUE(isolate, |
| NewTypeError(MessageTemplate::kIcuError), |
| Nothing<icu::UnicodeString>()); |
| } |
| if (fp_iter) { |
| formatted.getAllFieldPositions(*fp_iter, status); |
| } |
| icu::UnicodeString result = formatted.toString(status); |
| if (U_FAILURE(status)) { |
| THROW_NEW_ERROR_RETURN_VALUE(isolate, |
| NewTypeError(MessageTemplate::kIcuError), |
| Nothing<icu::UnicodeString>()); |
| } |
| return Just(result); |
| } |
| |
| } // namespace |
| |
| MaybeHandle<String> JSNumberFormat::FormatNumeric( |
| Isolate* isolate, |
| const icu::number::LocalizedNumberFormatter& number_format, |
| Handle<Object> numeric_obj) { |
| DCHECK(numeric_obj->IsNumeric()); |
| |
| Maybe<icu::UnicodeString> maybe_format = |
| IcuFormatNumber(isolate, number_format, numeric_obj, nullptr); |
| MAYBE_RETURN(maybe_format, Handle<String>()); |
| return Intl::ToString(isolate, maybe_format.FromJust()); |
| } |
| |
| namespace { |
| |
| bool cmp_NumberFormatSpan(const NumberFormatSpan& a, |
| const NumberFormatSpan& b) { |
| // Regions that start earlier should be encountered earlier. |
| if (a.begin_pos < b.begin_pos) return true; |
| if (a.begin_pos > b.begin_pos) return false; |
| // For regions that start in the same place, regions that last longer should |
| // be encountered earlier. |
| if (a.end_pos < b.end_pos) return false; |
| if (a.end_pos > b.end_pos) return true; |
| // For regions that are exactly the same, one of them must be the "literal" |
| // backdrop we added, which has a field_id of -1, so consider higher field_ids |
| // to be later. |
| return a.field_id < b.field_id; |
| } |
| |
| } // namespace |
| |
| // Flattens a list of possibly-overlapping "regions" to a list of |
| // non-overlapping "parts". At least one of the input regions must span the |
| // entire space of possible indexes. The regions parameter will sorted in-place |
| // according to some criteria; this is done for performance to avoid copying the |
| // input. |
| std::vector<NumberFormatSpan> FlattenRegionsToParts( |
| std::vector<NumberFormatSpan>* regions) { |
| // The intention of this algorithm is that it's used to translate ICU "fields" |
| // to JavaScript "parts" of a formatted string. Each ICU field and JavaScript |
| // part has an integer field_id, which corresponds to something like "grouping |
| // separator", "fraction", or "percent sign", and has a begin and end |
| // position. Here's a diagram of: |
| |
| // var nf = new Intl.NumberFormat(['de'], {style:'currency',currency:'EUR'}); |
| // nf.formatToParts(123456.78); |
| |
| // : 6 |
| // input regions: 0000000211 7 |
| // ('-' means -1): ------------ |
| // formatted string: "123.456,78 €" |
| // output parts: 0006000211-7 |
| |
| // To illustrate the requirements of this algorithm, here's a contrived and |
| // convoluted example of inputs and expected outputs: |
| |
| // : 4 |
| // : 22 33 3 |
| // : 11111 22 |
| // input regions: 0000000 111 |
| // : ------------ |
| // formatted string: "abcdefghijkl" |
| // output parts: 0221340--231 |
| // (The characters in the formatted string are irrelevant to this function.) |
| |
| // We arrange the overlapping input regions like a mountain range where |
| // smaller regions are "on top" of larger regions, and we output a birds-eye |
| // view of the mountains, so that smaller regions take priority over larger |
| // regions. |
| std::sort(regions->begin(), regions->end(), cmp_NumberFormatSpan); |
| std::vector<size_t> overlapping_region_index_stack; |
| // At least one item in regions must be a region spanning the entire string. |
| // Due to the sorting above, the first item in the vector will be one of them. |
| overlapping_region_index_stack.push_back(0); |
| NumberFormatSpan top_region = regions->at(0); |
| size_t region_iterator = 1; |
| int32_t entire_size = top_region.end_pos; |
| |
| std::vector<NumberFormatSpan> out_parts; |
| |
| // The "climber" is a cursor that advances from left to right climbing "up" |
| // and "down" the mountains. Whenever the climber moves to the right, that |
| // represents an item of output. |
| int32_t climber = 0; |
| while (climber < entire_size) { |
| int32_t next_region_begin_pos; |
| if (region_iterator < regions->size()) { |
| next_region_begin_pos = regions->at(region_iterator).begin_pos; |
| } else { |
| // finish off the rest of the input by proceeding to the end. |
| next_region_begin_pos = entire_size; |
| } |
| |
| if (climber < next_region_begin_pos) { |
| while (top_region.end_pos < next_region_begin_pos) { |
| if (climber < top_region.end_pos) { |
| // step down |
| out_parts.push_back(NumberFormatSpan(top_region.field_id, climber, |
| top_region.end_pos)); |
| climber = top_region.end_pos; |
| } else { |
| // drop down |
| } |
| overlapping_region_index_stack.pop_back(); |
| top_region = regions->at(overlapping_region_index_stack.back()); |
| } |
| if (climber < next_region_begin_pos) { |
| // cross a plateau/mesa/valley |
| out_parts.push_back(NumberFormatSpan(top_region.field_id, climber, |
| next_region_begin_pos)); |
| climber = next_region_begin_pos; |
| } |
| } |
| if (region_iterator < regions->size()) { |
| overlapping_region_index_stack.push_back(region_iterator++); |
| top_region = regions->at(overlapping_region_index_stack.back()); |
| } |
| } |
| return out_parts; |
| } |
| |
| namespace { |
| Maybe<int> ConstructParts(Isolate* isolate, const icu::UnicodeString& formatted, |
| icu::FieldPositionIterator* fp_iter, |
| Handle<JSArray> result, int start_index, |
| Handle<Object> numeric_obj, bool style_is_unit) { |
| DCHECK(numeric_obj->IsNumeric()); |
| int32_t length = formatted.length(); |
| int index = start_index; |
| if (length == 0) return Just(index); |
| |
| std::vector<NumberFormatSpan> regions; |
| // Add a "literal" backdrop for the entire string. This will be used if no |
| // other region covers some part of the formatted string. It's possible |
| // there's another field with exactly the same begin and end as this backdrop, |
| // in which case the backdrop's field_id of -1 will give it lower priority. |
| regions.push_back(NumberFormatSpan(-1, 0, formatted.length())); |
| |
| { |
| icu::FieldPosition fp; |
| while (fp_iter->next(fp)) { |
| regions.push_back(NumberFormatSpan(fp.getField(), fp.getBeginIndex(), |
| fp.getEndIndex())); |
| } |
| } |
| |
| std::vector<NumberFormatSpan> parts = FlattenRegionsToParts(®ions); |
| |
| for (auto it = parts.begin(); it < parts.end(); it++) { |
| NumberFormatSpan part = *it; |
| Handle<String> field_type_string = isolate->factory()->literal_string(); |
| if (part.field_id != -1) { |
| if (style_is_unit && static_cast<UNumberFormatFields>(part.field_id) == |
| UNUM_PERCENT_FIELD) { |
| // Special case when style is unit. |
| field_type_string = isolate->factory()->unit_string(); |
| } else { |
| field_type_string = |
| Intl::NumberFieldToType(isolate, numeric_obj, part.field_id); |
| } |
| } |
| Handle<String> substring; |
| ASSIGN_RETURN_ON_EXCEPTION_VALUE( |
| isolate, substring, |
| Intl::ToString(isolate, formatted, part.begin_pos, part.end_pos), |
| Nothing<int>()); |
| Intl::AddElement(isolate, result, index, field_type_string, substring); |
| ++index; |
| } |
| JSObject::ValidateElements(*result); |
| return Just(index); |
| } |
| |
| } // namespace |
| |
| MaybeHandle<JSArray> JSNumberFormat::FormatToParts( |
| Isolate* isolate, Handle<JSNumberFormat> number_format, |
| Handle<Object> numeric_obj) { |
| CHECK(numeric_obj->IsNumeric()); |
| Factory* factory = isolate->factory(); |
| icu::number::LocalizedNumberFormatter* fmt = |
| number_format->icu_number_formatter().raw(); |
| CHECK_NOT_NULL(fmt); |
| |
| icu::FieldPositionIterator fp_iter; |
| Maybe<icu::UnicodeString> maybe_format = |
| IcuFormatNumber(isolate, *fmt, numeric_obj, &fp_iter); |
| MAYBE_RETURN(maybe_format, Handle<JSArray>()); |
| |
| Handle<JSArray> result = factory->NewJSArray(0); |
| Maybe<int> maybe_format_to_parts = ConstructParts( |
| isolate, maybe_format.FromJust(), &fp_iter, result, 0, numeric_obj, |
| number_format->style() == JSNumberFormat::Style::UNIT); |
| MAYBE_RETURN(maybe_format_to_parts, Handle<JSArray>()); |
| |
| return result; |
| } |
| |
| namespace { |
| |
| struct CheckNumberElements { |
| static const char* key() { return "NumberElements"; } |
| static const char* path() { return nullptr; } |
| }; |
| |
| } // namespace |
| |
| const std::set<std::string>& JSNumberFormat::GetAvailableLocales() { |
| static base::LazyInstance< |
| Intl::AvailableLocales<icu::NumberFormat, CheckNumberElements>>::type |
| available_locales = LAZY_INSTANCE_INITIALIZER; |
| return available_locales.Pointer()->Get(); |
| } |
| |
| } // namespace internal |
| } // namespace v8 |
