| // Copyright 2013 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. |
| |
| // ECMAScript 402 API implementation. |
| |
| /** |
| * Intl object is a single object that has some named properties, |
| * all of which are constructors. |
| */ |
| (function(global, utils) { |
| |
| "use strict"; |
| |
| %CheckIsBootstrapping(); |
| |
| // ------------------------------------------------------------------- |
| // Imports |
| |
| var ArrayJoin; |
| var ArrayPush; |
| var GlobalDate = global.Date; |
| var GlobalIntl = global.Intl; |
| var GlobalIntlDateTimeFormat = GlobalIntl.DateTimeFormat; |
| var GlobalIntlNumberFormat = GlobalIntl.NumberFormat; |
| var GlobalIntlCollator = GlobalIntl.Collator; |
| var GlobalIntlPluralRules = utils.ImportNow("PluralRules"); |
| var GlobalIntlv8BreakIterator = GlobalIntl.v8BreakIterator; |
| var GlobalNumber = global.Number; |
| var GlobalRegExp = global.RegExp; |
| var GlobalString = global.String; |
| var IntlFallbackSymbol = utils.ImportNow("intl_fallback_symbol"); |
| var InternalArray = utils.InternalArray; |
| var MathMax = global.Math.max; |
| var ObjectHasOwnProperty = global.Object.prototype.hasOwnProperty; |
| var ObjectKeys = global.Object.keys; |
| var patternSymbol = utils.ImportNow("intl_pattern_symbol"); |
| var resolvedSymbol = utils.ImportNow("intl_resolved_symbol"); |
| var StringSubstr = GlobalString.prototype.substr; |
| var StringSubstring = GlobalString.prototype.substring; |
| |
| utils.Import(function(from) { |
| ArrayJoin = from.ArrayJoin; |
| ArrayPush = from.ArrayPush; |
| }); |
| |
| // Utilities for definitions |
| |
| macro IS_OBJECT(arg) |
| (typeof(arg) === 'object') |
| endmacro |
| |
| macro NUMBER_IS_NAN(arg) |
| (%IS_VAR(arg) !== arg) |
| endmacro |
| |
| macro NUMBER_IS_FINITE(arg) |
| (%_IsSmi(%IS_VAR(arg)) || ((arg == arg) && (arg != 1/0) && (arg != -1/0))) |
| endmacro |
| |
| // To avoid ES2015 Function name inference. |
| |
| macro ANONYMOUS_FUNCTION(fn) |
| (0, (fn)) |
| endmacro |
| |
| /** |
| * Adds bound method to the prototype of the given object. |
| */ |
| function AddBoundMethod(obj, methodName, implementation, length, typename, |
| compat) { |
| %CheckIsBootstrapping(); |
| var internalName = %CreatePrivateSymbol(methodName); |
| |
| DEFINE_METHOD( |
| obj.prototype, |
| get [methodName]() { |
| var receiver = Unwrap(this, typename, obj, methodName, compat); |
| if (IS_UNDEFINED(receiver[internalName])) { |
| var boundMethod; |
| if (IS_UNDEFINED(length) || length === 2) { |
| boundMethod = |
| ANONYMOUS_FUNCTION((fst, snd) => implementation(receiver, fst, snd)); |
| } else if (length === 1) { |
| boundMethod = ANONYMOUS_FUNCTION(fst => implementation(receiver, fst)); |
| } else { |
| boundMethod = ANONYMOUS_FUNCTION((...args) => { |
| // DateTimeFormat.format needs to be 0 arg method, but can still |
| // receive an optional dateValue param. If one was provided, pass it |
| // along. |
| if (args.length > 0) { |
| return implementation(receiver, args[0]); |
| } else { |
| return implementation(receiver); |
| } |
| }); |
| } |
| %SetNativeFlag(boundMethod); |
| receiver[internalName] = boundMethod; |
| } |
| return receiver[internalName]; |
| } |
| ); |
| } |
| |
| function IntlConstruct(receiver, constructor, create, newTarget, args, |
| compat) { |
| var locales = args[0]; |
| var options = args[1]; |
| |
| var instance = create(locales, options); |
| |
| if (compat && IS_UNDEFINED(newTarget) && receiver instanceof constructor) { |
| %object_define_property(receiver, IntlFallbackSymbol, { value: instance }); |
| return receiver; |
| } |
| |
| return instance; |
| } |
| |
| |
| |
| function Unwrap(receiver, typename, constructor, method, compat) { |
| if (!%IsInitializedIntlObjectOfType(receiver, typename)) { |
| if (compat && receiver instanceof constructor) { |
| let fallback = receiver[IntlFallbackSymbol]; |
| if (%IsInitializedIntlObjectOfType(fallback, typename)) { |
| return fallback; |
| } |
| } |
| throw %make_type_error(kIncompatibleMethodReceiver, method, receiver); |
| } |
| return receiver; |
| } |
| |
| |
| // ------------------------------------------------------------------- |
| |
| /** |
| * Caches available locales for each service. |
| */ |
| var AVAILABLE_LOCALES = { |
| 'collator': UNDEFINED, |
| 'numberformat': UNDEFINED, |
| 'dateformat': UNDEFINED, |
| 'breakiterator': UNDEFINED, |
| 'pluralrules': UNDEFINED, |
| }; |
| |
| /** |
| * Caches default ICU locale. |
| */ |
| var DEFAULT_ICU_LOCALE = UNDEFINED; |
| |
| function GetDefaultICULocaleJS(service) { |
| if (IS_UNDEFINED(DEFAULT_ICU_LOCALE)) { |
| DEFAULT_ICU_LOCALE = %GetDefaultICULocale(); |
| } |
| // Check that this is a valid default for this service, |
| // otherwise fall back to "und" |
| // TODO(littledan,jshin): AvailableLocalesOf sometimes excludes locales |
| // which don't require tailoring, but work fine with root data. Look into |
| // exposing this fact in ICU or the way Chrome bundles data. |
| return (IS_UNDEFINED(service) || |
| HAS_OWN_PROPERTY(getAvailableLocalesOf(service), DEFAULT_ICU_LOCALE)) |
| ? DEFAULT_ICU_LOCALE : "und"; |
| } |
| |
| /** |
| * Unicode extension regular expression. |
| */ |
| var UNICODE_EXTENSION_RE = UNDEFINED; |
| |
| function GetUnicodeExtensionRE() { |
| if (IS_UNDEFINED(UNDEFINED)) { |
| UNICODE_EXTENSION_RE = new GlobalRegExp('-u(-[a-z0-9]{2,8})+', 'g'); |
| } |
| return UNICODE_EXTENSION_RE; |
| } |
| |
| /** |
| * Matches any Unicode extension. |
| */ |
| var ANY_EXTENSION_RE = UNDEFINED; |
| |
| function GetAnyExtensionRE() { |
| if (IS_UNDEFINED(ANY_EXTENSION_RE)) { |
| ANY_EXTENSION_RE = new GlobalRegExp('-[a-z0-9]{1}-.*', 'g'); |
| } |
| return ANY_EXTENSION_RE; |
| } |
| |
| /** |
| * Replace quoted text (single quote, anything but the quote and quote again). |
| */ |
| var QUOTED_STRING_RE = UNDEFINED; |
| |
| function GetQuotedStringRE() { |
| if (IS_UNDEFINED(QUOTED_STRING_RE)) { |
| QUOTED_STRING_RE = new GlobalRegExp("'[^']+'", 'g'); |
| } |
| return QUOTED_STRING_RE; |
| } |
| |
| /** |
| * Matches valid service name. |
| */ |
| var SERVICE_RE = UNDEFINED; |
| |
| function GetServiceRE() { |
| if (IS_UNDEFINED(SERVICE_RE)) { |
| SERVICE_RE = |
| new GlobalRegExp('^(' + %_Call(ArrayJoin, ObjectKeys(AVAILABLE_LOCALES), '|') + ')$'); |
| } |
| return SERVICE_RE; |
| } |
| |
| /** |
| * Validates a language tag against bcp47 spec. |
| * Actual value is assigned on first run. |
| */ |
| var LANGUAGE_TAG_RE = UNDEFINED; |
| |
| function GetLanguageTagRE() { |
| if (IS_UNDEFINED(LANGUAGE_TAG_RE)) { |
| BuildLanguageTagREs(); |
| } |
| return LANGUAGE_TAG_RE; |
| } |
| |
| /** |
| * Helps find duplicate variants in the language tag. |
| */ |
| var LANGUAGE_VARIANT_RE = UNDEFINED; |
| |
| function GetLanguageVariantRE() { |
| if (IS_UNDEFINED(LANGUAGE_VARIANT_RE)) { |
| BuildLanguageTagREs(); |
| } |
| return LANGUAGE_VARIANT_RE; |
| } |
| |
| /** |
| * Helps find duplicate singletons in the language tag. |
| */ |
| var LANGUAGE_SINGLETON_RE = UNDEFINED; |
| |
| function GetLanguageSingletonRE() { |
| if (IS_UNDEFINED(LANGUAGE_SINGLETON_RE)) { |
| BuildLanguageTagREs(); |
| } |
| return LANGUAGE_SINGLETON_RE; |
| } |
| |
| /** |
| * Matches valid IANA time zone names. |
| */ |
| var TIMEZONE_NAME_CHECK_RE = UNDEFINED; |
| |
| function GetTimezoneNameCheckRE() { |
| if (IS_UNDEFINED(TIMEZONE_NAME_CHECK_RE)) { |
| TIMEZONE_NAME_CHECK_RE = new GlobalRegExp( |
| '^([A-Za-z]+)/([A-Za-z_-]+)((?:\/[A-Za-z_-]+)+)*$'); |
| } |
| return TIMEZONE_NAME_CHECK_RE; |
| } |
| |
| /** |
| * Matches valid location parts of IANA time zone names. |
| */ |
| var TIMEZONE_NAME_LOCATION_PART_RE = UNDEFINED; |
| |
| function GetTimezoneNameLocationPartRE() { |
| if (IS_UNDEFINED(TIMEZONE_NAME_LOCATION_PART_RE)) { |
| TIMEZONE_NAME_LOCATION_PART_RE = |
| new GlobalRegExp('^([A-Za-z]+)((?:[_-][A-Za-z]+)+)*$'); |
| } |
| return TIMEZONE_NAME_LOCATION_PART_RE; |
| } |
| |
| |
| /** |
| * Returns an intersection of locales and service supported locales. |
| * Parameter locales is treated as a priority list. |
| */ |
| function supportedLocalesOf(service, locales, options) { |
| if (IS_NULL(%regexp_internal_match(GetServiceRE(), service))) { |
| throw %make_error(kWrongServiceType, service); |
| } |
| |
| // Provide defaults if matcher was not specified. |
| if (IS_UNDEFINED(options)) { |
| options = {__proto__: null}; |
| } else { |
| options = TO_OBJECT(options); |
| } |
| |
| var matcher = options.localeMatcher; |
| if (!IS_UNDEFINED(matcher)) { |
| matcher = TO_STRING(matcher); |
| if (matcher !== 'lookup' && matcher !== 'best fit') { |
| throw %make_range_error(kLocaleMatcher, matcher); |
| } |
| } else { |
| matcher = 'best fit'; |
| } |
| |
| var requestedLocales = initializeLocaleList(locales); |
| |
| var availableLocales = getAvailableLocalesOf(service); |
| |
| // Use either best fit or lookup algorithm to match locales. |
| if (matcher === 'best fit') { |
| return initializeLocaleList(bestFitSupportedLocalesOf( |
| requestedLocales, availableLocales)); |
| } |
| |
| return initializeLocaleList(lookupSupportedLocalesOf( |
| requestedLocales, availableLocales)); |
| } |
| |
| |
| /** |
| * Returns the subset of the provided BCP 47 language priority list for which |
| * this service has a matching locale when using the BCP 47 Lookup algorithm. |
| * Locales appear in the same order in the returned list as in the input list. |
| */ |
| function lookupSupportedLocalesOf(requestedLocales, availableLocales) { |
| var matchedLocales = new InternalArray(); |
| for (var i = 0; i < requestedLocales.length; ++i) { |
| // Remove -u- extension. |
| var locale = %RegExpInternalReplace( |
| GetUnicodeExtensionRE(), requestedLocales[i], ''); |
| do { |
| if (!IS_UNDEFINED(availableLocales[locale])) { |
| // Push requested locale not the resolved one. |
| %_Call(ArrayPush, matchedLocales, requestedLocales[i]); |
| break; |
| } |
| // Truncate locale if possible, if not break. |
| var pos = %StringLastIndexOf(locale, '-'); |
| if (pos === -1) { |
| break; |
| } |
| locale = %_Call(StringSubstring, locale, 0, pos); |
| } while (true); |
| } |
| |
| return matchedLocales; |
| } |
| |
| |
| /** |
| * Returns the subset of the provided BCP 47 language priority list for which |
| * this service has a matching locale when using the implementation |
| * dependent algorithm. |
| * Locales appear in the same order in the returned list as in the input list. |
| */ |
| function bestFitSupportedLocalesOf(requestedLocales, availableLocales) { |
| // TODO(cira): implement better best fit algorithm. |
| return lookupSupportedLocalesOf(requestedLocales, availableLocales); |
| } |
| |
| |
| /** |
| * Returns a getOption function that extracts property value for given |
| * options object. If property is missing it returns defaultValue. If value |
| * is out of range for that property it throws RangeError. |
| */ |
| function getGetOption(options, caller) { |
| if (IS_UNDEFINED(options)) throw %make_error(kDefaultOptionsMissing, caller); |
| |
| var getOption = function getOption(property, type, values, defaultValue) { |
| if (!IS_UNDEFINED(options[property])) { |
| var value = options[property]; |
| switch (type) { |
| case 'boolean': |
| value = TO_BOOLEAN(value); |
| break; |
| case 'string': |
| value = TO_STRING(value); |
| break; |
| case 'number': |
| value = TO_NUMBER(value); |
| break; |
| default: |
| throw %make_error(kWrongValueType); |
| } |
| |
| if (!IS_UNDEFINED(values) && %ArrayIndexOf(values, value, 0) === -1) { |
| throw %make_range_error(kValueOutOfRange, value, caller, property); |
| } |
| |
| return value; |
| } |
| |
| return defaultValue; |
| } |
| |
| return getOption; |
| } |
| |
| |
| /** |
| * Ecma 402 9.2.5 |
| * TODO(jshin): relevantExtensionKeys and localeData need to be taken into |
| * account per spec. |
| * Compares a BCP 47 language priority list requestedLocales against the locales |
| * in availableLocales and determines the best available language to meet the |
| * request. Two algorithms are available to match the locales: the Lookup |
| * algorithm described in RFC 4647 section 3.4, and an implementation dependent |
| * best-fit algorithm. Independent of the locale matching algorithm, options |
| * specified through Unicode locale extension sequences are negotiated |
| * separately, taking the caller's relevant extension keys and locale data as |
| * well as client-provided options into consideration. Returns an object with |
| * a locale property whose value is the language tag of the selected locale, |
| * and properties for each key in relevantExtensionKeys providing the selected |
| * value for that key. |
| */ |
| function resolveLocale(service, requestedLocales, options) { |
| requestedLocales = initializeLocaleList(requestedLocales); |
| |
| var getOption = getGetOption(options, service); |
| var matcher = getOption('localeMatcher', 'string', |
| ['lookup', 'best fit'], 'best fit'); |
| var resolved; |
| if (matcher === 'lookup') { |
| resolved = lookupMatcher(service, requestedLocales); |
| } else { |
| resolved = bestFitMatcher(service, requestedLocales); |
| } |
| |
| return resolved; |
| } |
| |
| |
| /** |
| * Returns best matched supported locale and extension info using basic |
| * lookup algorithm. |
| */ |
| function lookupMatcher(service, requestedLocales) { |
| if (IS_NULL(%regexp_internal_match(GetServiceRE(), service))) { |
| throw %make_error(kWrongServiceType, service); |
| } |
| |
| var availableLocales = getAvailableLocalesOf(service); |
| |
| for (var i = 0; i < requestedLocales.length; ++i) { |
| // Remove all extensions. |
| var locale = %RegExpInternalReplace( |
| GetAnyExtensionRE(), requestedLocales[i], ''); |
| do { |
| if (!IS_UNDEFINED(availableLocales[locale])) { |
| // Return the resolved locale and extension. |
| var extensionMatch = %regexp_internal_match( |
| GetUnicodeExtensionRE(), requestedLocales[i]); |
| var extension = IS_NULL(extensionMatch) ? '' : extensionMatch[0]; |
| return {locale: locale, extension: extension, position: i}; |
| } |
| // Truncate locale if possible. |
| var pos = %StringLastIndexOf(locale, '-'); |
| if (pos === -1) { |
| break; |
| } |
| locale = %_Call(StringSubstring, locale, 0, pos); |
| } while (true); |
| } |
| |
| // Didn't find a match, return default. |
| return { |
| locale: GetDefaultICULocaleJS(service), |
| extension: '', |
| position: -1 |
| }; |
| } |
| |
| |
| /** |
| * Returns best matched supported locale and extension info using |
| * implementation dependend algorithm. |
| */ |
| function bestFitMatcher(service, requestedLocales) { |
| // TODO(cira): implement better best fit algorithm. |
| return lookupMatcher(service, requestedLocales); |
| } |
| |
| |
| /** |
| * Parses Unicode extension into key - value map. |
| * Returns empty object if the extension string is invalid. |
| * We are not concerned with the validity of the values at this point. |
| * 'attribute' in RFC 6047 is not supported. Keys without explicit |
| * values are assigned UNDEFINED. |
| * TODO(jshin): Fix the handling of 'attribute' (in RFC 6047, but none |
| * has been defined so that it's not used) and boolean keys without |
| * an explicit value. |
| */ |
| function parseExtension(extension) { |
| var extensionSplit = %StringSplit(extension, '-', kMaxUint32); |
| |
| // Assume ['', 'u', ...] input, but don't throw. |
| if (extensionSplit.length <= 2 || |
| (extensionSplit[0] !== '' && extensionSplit[1] !== 'u')) { |
| return {__proto__: null}; |
| } |
| |
| // Key is {2}alphanum, value is {3,8}alphanum. |
| // Some keys may not have explicit values (booleans). |
| var extensionMap = {__proto__: null}; |
| var key = UNDEFINED; |
| var value = UNDEFINED; |
| for (var i = 2; i < extensionSplit.length; ++i) { |
| var length = extensionSplit[i].length; |
| var element = extensionSplit[i]; |
| if (length === 2) { |
| if (!IS_UNDEFINED(key)) { |
| if (!(key in extensionMap)) { |
| extensionMap[key] = value; |
| } |
| value = UNDEFINED; |
| } |
| key = element; |
| } else if (length >= 3 && length <= 8 && !IS_UNDEFINED(key)) { |
| if (IS_UNDEFINED(value)) { |
| value = element; |
| } else { |
| value = value + "-" + element; |
| } |
| } else { |
| // There is a value that's too long, or that doesn't have a key. |
| return {__proto__: null}; |
| } |
| } |
| if (!IS_UNDEFINED(key) && !(key in extensionMap)) { |
| extensionMap[key] = value; |
| } |
| |
| return extensionMap; |
| } |
| |
| |
| /** |
| * Populates internalOptions object with boolean key-value pairs |
| * from extensionMap and options. |
| * Returns filtered extension (number and date format constructors use |
| * Unicode extensions for passing parameters to ICU). |
| * It's used for extension-option pairs only, e.g. kn-normalization, but not |
| * for 'sensitivity' since it doesn't have extension equivalent. |
| * Extensions like nu and ca don't have options equivalent, so we place |
| * undefined in the map.property to denote that. |
| */ |
| function setOptions(inOptions, extensionMap, keyValues, getOption, outOptions) { |
| var extension = ''; |
| |
| var updateExtension = function updateExtension(key, value) { |
| return '-' + key + '-' + TO_STRING(value); |
| } |
| |
| var updateProperty = function updateProperty(property, type, value) { |
| if (type === 'boolean' && (typeof value === 'string')) { |
| value = (value === 'true') ? true : false; |
| } |
| |
| if (!IS_UNDEFINED(property)) { |
| defineWEProperty(outOptions, property, value); |
| } |
| } |
| |
| for (var key in keyValues) { |
| if (HAS_OWN_PROPERTY(keyValues, key)) { |
| var value = UNDEFINED; |
| var map = keyValues[key]; |
| if (!IS_UNDEFINED(map.property)) { |
| // This may return true if user specifies numeric: 'false', since |
| // Boolean('nonempty') === true. |
| value = getOption(map.property, map.type, map.values); |
| } |
| if (!IS_UNDEFINED(value)) { |
| updateProperty(map.property, map.type, value); |
| extension += updateExtension(key, value); |
| continue; |
| } |
| // User options didn't have it, check Unicode extension. |
| // Here we want to convert strings 'true', 'false' into proper Boolean |
| // values (not a user error). |
| if (HAS_OWN_PROPERTY(extensionMap, key)) { |
| value = extensionMap[key]; |
| if (!IS_UNDEFINED(value)) { |
| updateProperty(map.property, map.type, value); |
| extension += updateExtension(key, value); |
| } else if (map.type === 'boolean') { |
| // Boolean keys are allowed not to have values in Unicode extension. |
| // Those default to true. |
| updateProperty(map.property, map.type, true); |
| extension += updateExtension(key, true); |
| } |
| } |
| } |
| } |
| |
| return extension === ''? '' : '-u' + extension; |
| } |
| |
| |
| /** |
| * Given an array-like, outputs an Array with the numbered |
| * properties copied over and defined |
| * configurable: false, writable: false, enumerable: true. |
| * When |expandable| is true, the result array can be expanded. |
| */ |
| function freezeArray(input) { |
| var array = []; |
| var l = input.length; |
| for (var i = 0; i < l; i++) { |
| if (i in input) { |
| %object_define_property(array, i, {value: input[i], |
| configurable: false, |
| writable: false, |
| enumerable: true}); |
| } |
| } |
| |
| %object_define_property(array, 'length', {value: l, writable: false}); |
| return array; |
| } |
| |
| /* Make JS array[] out of InternalArray */ |
| function makeArray(input) { |
| var array = []; |
| %MoveArrayContents(input, array); |
| return array; |
| } |
| |
| /** |
| * Returns an Object that contains all of supported locales for a given |
| * service. |
| * In addition to the supported locales we add xx-ZZ locale for each xx-Yyyy-ZZ |
| * that is supported. This is required by the spec. |
| */ |
| function getAvailableLocalesOf(service) { |
| // Cache these, they don't ever change per service. |
| if (!IS_UNDEFINED(AVAILABLE_LOCALES[service])) { |
| return AVAILABLE_LOCALES[service]; |
| } |
| |
| var available = %AvailableLocalesOf(service); |
| |
| for (var i in available) { |
| if (HAS_OWN_PROPERTY(available, i)) { |
| var parts = %regexp_internal_match( |
| /^([a-z]{2,3})-([A-Z][a-z]{3})-([A-Z]{2})$/, i); |
| if (!IS_NULL(parts)) { |
| // Build xx-ZZ. We don't care about the actual value, |
| // as long it's not undefined. |
| available[parts[1] + '-' + parts[3]] = null; |
| } |
| } |
| } |
| |
| AVAILABLE_LOCALES[service] = available; |
| |
| return available; |
| } |
| |
| |
| /** |
| * Defines a property and sets writable and enumerable to true. |
| * Configurable is false by default. |
| */ |
| function defineWEProperty(object, property, value) { |
| %object_define_property(object, property, |
| {value: value, writable: true, enumerable: true}); |
| } |
| |
| |
| /** |
| * Adds property to an object if the value is not undefined. |
| * Sets configurable descriptor to false. |
| */ |
| function addWEPropertyIfDefined(object, property, value) { |
| if (!IS_UNDEFINED(value)) { |
| defineWEProperty(object, property, value); |
| } |
| } |
| |
| |
| /** |
| * Defines a property and sets writable, enumerable and configurable to true. |
| */ |
| function defineWECProperty(object, property, value) { |
| %object_define_property(object, property, {value: value, |
| writable: true, |
| enumerable: true, |
| configurable: true}); |
| } |
| |
| |
| /** |
| * Adds property to an object if the value is not undefined. |
| * Sets all descriptors to true. |
| */ |
| function addWECPropertyIfDefined(object, property, value) { |
| if (!IS_UNDEFINED(value)) { |
| defineWECProperty(object, property, value); |
| } |
| } |
| |
| |
| /** |
| * Returns titlecased word, aMeRricA -> America. |
| */ |
| function toTitleCaseWord(word) { |
| return %StringToUpperCaseIntl(%_Call(StringSubstr, word, 0, 1)) + |
| %StringToLowerCaseIntl(%_Call(StringSubstr, word, 1)); |
| } |
| |
| /** |
| * Returns titlecased location, bueNos_airES -> Buenos_Aires |
| * or ho_cHi_minH -> Ho_Chi_Minh. It is locale-agnostic and only |
| * deals with ASCII only characters. |
| * 'of', 'au' and 'es' are special-cased and lowercased. |
| */ |
| function toTitleCaseTimezoneLocation(location) { |
| var match = %regexp_internal_match(GetTimezoneNameLocationPartRE(), location) |
| if (IS_NULL(match)) throw %make_range_error(kExpectedLocation, location); |
| |
| var result = toTitleCaseWord(match[1]); |
| if (!IS_UNDEFINED(match[2]) && 2 < match.length) { |
| // The first character is a separator, '_' or '-'. |
| // None of IANA zone names has both '_' and '-'. |
| var separator = %_Call(StringSubstring, match[2], 0, 1); |
| var parts = %StringSplit(match[2], separator, kMaxUint32); |
| for (var i = 1; i < parts.length; i++) { |
| var part = parts[i] |
| var lowercasedPart = %StringToLowerCaseIntl(part); |
| result = result + separator + |
| ((lowercasedPart !== 'es' && |
| lowercasedPart !== 'of' && lowercasedPart !== 'au') ? |
| toTitleCaseWord(part) : lowercasedPart); |
| } |
| } |
| return result; |
| } |
| |
| /** |
| * Canonicalizes the language tag, or throws in case the tag is invalid. |
| * ECMA 402 9.2.1 steps 7.c ii ~ v. |
| */ |
| function canonicalizeLanguageTag(localeID) { |
| // null is typeof 'object' so we have to do extra check. |
| if ((!IS_STRING(localeID) && !IS_RECEIVER(localeID)) || |
| IS_NULL(localeID)) { |
| throw %make_type_error(kLanguageID); |
| } |
| |
| // Optimize for the most common case; a language code alone in |
| // the canonical form/lowercase (e.g. "en", "fil"). |
| if (IS_STRING(localeID) && |
| !IS_NULL(%regexp_internal_match(/^[a-z]{2,3}$/, localeID))) { |
| return localeID; |
| } |
| |
| var localeString = TO_STRING(localeID); |
| |
| if (isStructuallyValidLanguageTag(localeString) === false) { |
| throw %make_range_error(kInvalidLanguageTag, localeString); |
| } |
| |
| // ECMA 402 6.2.3 |
| var tag = %CanonicalizeLanguageTag(localeString); |
| // TODO(jshin): This should not happen because the structural validity |
| // is already checked. If that's the case, remove this. |
| if (tag === 'invalid-tag') { |
| throw %make_range_error(kInvalidLanguageTag, localeString); |
| } |
| |
| return tag; |
| } |
| |
| |
| /** |
| * Returns an InternalArray where all locales are canonicalized and duplicates |
| * removed. |
| * Throws on locales that are not well formed BCP47 tags. |
| * ECMA 402 8.2.1 steps 1 (ECMA 402 9.2.1) and 2. |
| */ |
| function canonicalizeLocaleList(locales) { |
| var seen = new InternalArray(); |
| if (!IS_UNDEFINED(locales)) { |
| // We allow single string localeID. |
| if (typeof locales === 'string') { |
| %_Call(ArrayPush, seen, canonicalizeLanguageTag(locales)); |
| return seen; |
| } |
| |
| var o = TO_OBJECT(locales); |
| var len = TO_LENGTH(o.length); |
| |
| for (var k = 0; k < len; k++) { |
| if (k in o) { |
| var value = o[k]; |
| |
| var tag = canonicalizeLanguageTag(value); |
| |
| if (%ArrayIndexOf(seen, tag, 0) === -1) { |
| %_Call(ArrayPush, seen, tag); |
| } |
| } |
| } |
| } |
| |
| return seen; |
| } |
| |
| function initializeLocaleList(locales) { |
| return freezeArray(canonicalizeLocaleList(locales)); |
| } |
| |
| /** |
| * Check the structural Validity of the language tag per ECMA 402 6.2.2: |
| * - Well-formed per RFC 5646 2.1 |
| * - There are no duplicate variant subtags |
| * - There are no duplicate singletion (extension) subtags |
| * |
| * One extra-check is done (from RFC 5646 2.2.9): the tag is compared |
| * against the list of grandfathered tags. However, subtags for |
| * primary/extended language, script, region, variant are not checked |
| * against the IANA language subtag registry. |
| * |
| * ICU is too permissible and lets invalid tags, like |
| * hant-cmn-cn, through. |
| * |
| * Returns false if the language tag is invalid. |
| */ |
| function isStructuallyValidLanguageTag(locale) { |
| // Check if it's well-formed, including grandfadered tags. |
| if (IS_NULL(%regexp_internal_match(GetLanguageTagRE(), locale))) { |
| return false; |
| } |
| |
| locale = %StringToLowerCaseIntl(locale); |
| |
| // Just return if it's a x- form. It's all private. |
| if (%StringIndexOf(locale, 'x-', 0) === 0) { |
| return true; |
| } |
| |
| // Check if there are any duplicate variants or singletons (extensions). |
| |
| // Remove private use section. |
| locale = %StringSplit(locale, '-x-', kMaxUint32)[0]; |
| |
| // Skip language since it can match variant regex, so we start from 1. |
| // We are matching i-klingon here, but that's ok, since i-klingon-klingon |
| // is not valid and would fail LANGUAGE_TAG_RE test. |
| var variants = new InternalArray(); |
| var extensions = new InternalArray(); |
| var parts = %StringSplit(locale, '-', kMaxUint32); |
| for (var i = 1; i < parts.length; i++) { |
| var value = parts[i]; |
| if (!IS_NULL(%regexp_internal_match(GetLanguageVariantRE(), value)) && |
| extensions.length === 0) { |
| if (%ArrayIndexOf(variants, value, 0) === -1) { |
| %_Call(ArrayPush, variants, value); |
| } else { |
| return false; |
| } |
| } |
| |
| if (!IS_NULL(%regexp_internal_match(GetLanguageSingletonRE(), value))) { |
| if (%ArrayIndexOf(extensions, value, 0) === -1) { |
| %_Call(ArrayPush, extensions, value); |
| } else { |
| return false; |
| } |
| } |
| } |
| |
| return true; |
| } |
| |
| |
| /** |
| * Builds a regular expresion that validates the language tag |
| * against bcp47 spec. |
| * Uses http://tools.ietf.org/html/bcp47, section 2.1, ABNF. |
| * Runs on load and initializes the global REs. |
| */ |
| function BuildLanguageTagREs() { |
| var alpha = '[a-zA-Z]'; |
| var digit = '[0-9]'; |
| var alphanum = '(' + alpha + '|' + digit + ')'; |
| var regular = '(art-lojban|cel-gaulish|no-bok|no-nyn|zh-guoyu|zh-hakka|' + |
| 'zh-min|zh-min-nan|zh-xiang)'; |
| var irregular = '(en-GB-oed|i-ami|i-bnn|i-default|i-enochian|i-hak|' + |
| 'i-klingon|i-lux|i-mingo|i-navajo|i-pwn|i-tao|i-tay|' + |
| 'i-tsu|sgn-BE-FR|sgn-BE-NL|sgn-CH-DE)'; |
| var grandfathered = '(' + irregular + '|' + regular + ')'; |
| var privateUse = '(x(-' + alphanum + '{1,8})+)'; |
| |
| var singleton = '(' + digit + '|[A-WY-Za-wy-z])'; |
| LANGUAGE_SINGLETON_RE = new GlobalRegExp('^' + singleton + '$', 'i'); |
| |
| var extension = '(' + singleton + '(-' + alphanum + '{2,8})+)'; |
| |
| var variant = '(' + alphanum + '{5,8}|(' + digit + alphanum + '{3}))'; |
| LANGUAGE_VARIANT_RE = new GlobalRegExp('^' + variant + '$', 'i'); |
| |
| var region = '(' + alpha + '{2}|' + digit + '{3})'; |
| var script = '(' + alpha + '{4})'; |
| var extLang = '(' + alpha + '{3}(-' + alpha + '{3}){0,2})'; |
| var language = '(' + alpha + '{2,3}(-' + extLang + ')?|' + alpha + '{4}|' + |
| alpha + '{5,8})'; |
| var langTag = language + '(-' + script + ')?(-' + region + ')?(-' + |
| variant + ')*(-' + extension + ')*(-' + privateUse + ')?'; |
| |
| var languageTag = |
| '^(' + langTag + '|' + privateUse + '|' + grandfathered + ')$'; |
| LANGUAGE_TAG_RE = new GlobalRegExp(languageTag, 'i'); |
| } |
| |
| // ECMA 402 section 8.2.1 |
| DEFINE_METHOD( |
| GlobalIntl, |
| getCanonicalLocales(locales) { |
| return makeArray(canonicalizeLocaleList(locales)); |
| } |
| ); |
| |
| /** |
| * Initializes the given object so it's a valid Collator instance. |
| * Useful for subclassing. |
| */ |
| function CreateCollator(locales, options) { |
| if (IS_UNDEFINED(options)) { |
| options = {__proto__: null}; |
| } |
| |
| var getOption = getGetOption(options, 'collator'); |
| |
| var internalOptions = {__proto__: null}; |
| |
| defineWEProperty(internalOptions, 'usage', getOption( |
| 'usage', 'string', ['sort', 'search'], 'sort')); |
| |
| var sensitivity = getOption('sensitivity', 'string', |
| ['base', 'accent', 'case', 'variant']); |
| if (IS_UNDEFINED(sensitivity) && internalOptions.usage === 'sort') { |
| sensitivity = 'variant'; |
| } |
| defineWEProperty(internalOptions, 'sensitivity', sensitivity); |
| |
| defineWEProperty(internalOptions, 'ignorePunctuation', getOption( |
| 'ignorePunctuation', 'boolean', UNDEFINED, false)); |
| |
| var locale = resolveLocale('collator', locales, options); |
| |
| // TODO(jshin): ICU now can take kb, kc, etc. Switch over to using ICU |
| // directly. See Collator::InitializeCollator and |
| // Collator::CreateICUCollator in src/objects/intl-objects.cc |
| // ICU can't take kb, kc... parameters through localeID, so we need to pass |
| // them as options. |
| // One exception is -co- which has to be part of the extension, but only for |
| // usage: sort, and its value can't be 'standard' or 'search'. |
| var extensionMap = parseExtension(locale.extension); |
| |
| /** |
| * Map of Unicode extensions to option properties, and their values and types, |
| * for a collator. |
| */ |
| var COLLATOR_KEY_MAP = { |
| 'kn': {'property': 'numeric', 'type': 'boolean'}, |
| 'kf': {'property': 'caseFirst', 'type': 'string', |
| 'values': ['false', 'lower', 'upper']} |
| }; |
| |
| setOptions( |
| options, extensionMap, COLLATOR_KEY_MAP, getOption, internalOptions); |
| |
| var collation = 'default'; |
| var extension = ''; |
| if (HAS_OWN_PROPERTY(extensionMap, 'co') && internalOptions.usage === 'sort') { |
| |
| /** |
| * Allowed -u-co- values. List taken from: |
| * http://unicode.org/repos/cldr/trunk/common/bcp47/collation.xml |
| */ |
| var ALLOWED_CO_VALUES = [ |
| 'big5han', 'dict', 'direct', 'ducet', 'gb2312', 'phonebk', 'phonetic', |
| 'pinyin', 'reformed', 'searchjl', 'stroke', 'trad', 'unihan', 'zhuyin' |
| ]; |
| |
| if (%ArrayIndexOf(ALLOWED_CO_VALUES, extensionMap.co, 0) !== -1) { |
| extension = '-u-co-' + extensionMap.co; |
| // ICU can't tell us what the collation is, so save user's input. |
| collation = extensionMap.co; |
| } |
| } else if (internalOptions.usage === 'search') { |
| extension = '-u-co-search'; |
| } |
| defineWEProperty(internalOptions, 'collation', collation); |
| |
| var requestedLocale = locale.locale + extension; |
| |
| // We define all properties C++ code may produce, to prevent security |
| // problems. If malicious user decides to redefine Object.prototype.locale |
| // we can't just use plain x.locale = 'us' or in C++ Set("locale", "us"). |
| // %object_define_properties will either succeed defining or throw an error. |
| var resolved = %object_define_properties({__proto__: null}, { |
| caseFirst: {writable: true}, |
| collation: {value: internalOptions.collation, writable: true}, |
| ignorePunctuation: {writable: true}, |
| locale: {writable: true}, |
| numeric: {writable: true}, |
| requestedLocale: {value: requestedLocale, writable: true}, |
| sensitivity: {writable: true}, |
| strength: {writable: true}, |
| usage: {value: internalOptions.usage, writable: true} |
| }); |
| |
| var collator = %CreateCollator(requestedLocale, internalOptions, resolved); |
| |
| %MarkAsInitializedIntlObjectOfType(collator, 'collator'); |
| collator[resolvedSymbol] = resolved; |
| |
| return collator; |
| } |
| |
| |
| /** |
| * Constructs Intl.Collator object given optional locales and options |
| * parameters. |
| * |
| * @constructor |
| */ |
| function CollatorConstructor() { |
| return IntlConstruct(this, GlobalIntlCollator, CreateCollator, new.target, |
| arguments); |
| } |
| %SetCode(GlobalIntlCollator, CollatorConstructor); |
| |
| |
| /** |
| * Collator resolvedOptions method. |
| */ |
| DEFINE_METHOD( |
| GlobalIntlCollator.prototype, |
| resolvedOptions() { |
| var coll = Unwrap(this, 'collator', GlobalIntlCollator, 'resolvedOptions', |
| false); |
| return { |
| locale: coll[resolvedSymbol].locale, |
| usage: coll[resolvedSymbol].usage, |
| sensitivity: coll[resolvedSymbol].sensitivity, |
| ignorePunctuation: coll[resolvedSymbol].ignorePunctuation, |
| numeric: coll[resolvedSymbol].numeric, |
| caseFirst: coll[resolvedSymbol].caseFirst, |
| collation: coll[resolvedSymbol].collation |
| }; |
| } |
| ); |
| |
| |
| /** |
| * Returns the subset of the given locale list for which this locale list |
| * has a matching (possibly fallback) locale. Locales appear in the same |
| * order in the returned list as in the input list. |
| * Options are optional parameter. |
| */ |
| DEFINE_METHOD( |
| GlobalIntlCollator, |
| supportedLocalesOf(locales) { |
| return supportedLocalesOf('collator', locales, arguments[1]); |
| } |
| ); |
| |
| |
| /** |
| * When the compare method is called with two arguments x and y, it returns a |
| * Number other than NaN that represents the result of a locale-sensitive |
| * String comparison of x with y. |
| * The result is intended to order String values in the sort order specified |
| * by the effective locale and collation options computed during construction |
| * of this Collator object, and will be negative, zero, or positive, depending |
| * on whether x comes before y in the sort order, the Strings are equal under |
| * the sort order, or x comes after y in the sort order, respectively. |
| */ |
| function compare(collator, x, y) { |
| return %InternalCompare(collator, TO_STRING(x), TO_STRING(y)); |
| }; |
| |
| |
| AddBoundMethod(GlobalIntlCollator, 'compare', compare, 2, 'collator', false); |
| |
| function PluralRulesConstructor() { |
| if (IS_UNDEFINED(new.target)) { |
| throw %make_type_error(kConstructorNotFunction, "PluralRules"); |
| } |
| |
| var locales = arguments[0]; |
| var options = arguments[1]; |
| |
| if (IS_UNDEFINED(options)) { |
| options = {__proto__: null}; |
| } |
| |
| var getOption = getGetOption(options, 'pluralrules'); |
| |
| var locale = resolveLocale('pluralrules', locales, options); |
| |
| var internalOptions = {__proto__: null}; |
| defineWEProperty(internalOptions, 'type', getOption( |
| 'type', 'string', ['cardinal', 'ordinal'], 'cardinal')); |
| |
| SetNumberFormatDigitOptions(internalOptions, options, 0, 3); |
| |
| var requestedLocale = locale.locale; |
| var resolved = %object_define_properties({__proto__: null}, { |
| type: {value: internalOptions.type, writable: true}, |
| locale: {writable: true}, |
| maximumFractionDigits: {writable: true}, |
| minimumFractionDigits: {writable: true}, |
| minimumIntegerDigits: {writable: true}, |
| requestedLocale: {value: requestedLocale, writable: true}, |
| }); |
| if (HAS_OWN_PROPERTY(internalOptions, 'minimumSignificantDigits')) { |
| defineWEProperty(resolved, 'minimumSignificantDigits', UNDEFINED); |
| } |
| if (HAS_OWN_PROPERTY(internalOptions, 'maximumSignificantDigits')) { |
| defineWEProperty(resolved, 'maximumSignificantDigits', UNDEFINED); |
| } |
| defineWEProperty(resolved, 'pluralCategories', []); |
| var pluralRules = %CreatePluralRules(requestedLocale, internalOptions, |
| resolved); |
| |
| %MarkAsInitializedIntlObjectOfType(pluralRules, 'pluralrules'); |
| pluralRules[resolvedSymbol] = resolved; |
| |
| return pluralRules; |
| } |
| %SetCode(GlobalIntlPluralRules, PluralRulesConstructor); |
| |
| DEFINE_METHOD( |
| GlobalIntlPluralRules.prototype, |
| resolvedOptions() { |
| if (!%IsInitializedIntlObjectOfType(this, 'pluralrules')) { |
| throw %make_type_error(kIncompatibleMethodReceiver, |
| 'Intl.PluralRules.prototype.resolvedOptions', |
| this); |
| } |
| |
| var result = { |
| locale: this[resolvedSymbol].locale, |
| type: this[resolvedSymbol].type, |
| minimumIntegerDigits: this[resolvedSymbol].minimumIntegerDigits, |
| minimumFractionDigits: this[resolvedSymbol].minimumFractionDigits, |
| maximumFractionDigits: this[resolvedSymbol].maximumFractionDigits, |
| }; |
| |
| if (HAS_OWN_PROPERTY(this[resolvedSymbol], 'minimumSignificantDigits')) { |
| defineWECProperty(result, 'minimumSignificantDigits', |
| this[resolvedSymbol].minimumSignificantDigits); |
| } |
| |
| if (HAS_OWN_PROPERTY(this[resolvedSymbol], 'maximumSignificantDigits')) { |
| defineWECProperty(result, 'maximumSignificantDigits', |
| this[resolvedSymbol].maximumSignificantDigits); |
| } |
| |
| defineWECProperty(result, 'pluralCategories', |
| this[resolvedSymbol].pluralCategories); |
| |
| return result; |
| } |
| ); |
| |
| DEFINE_METHOD( |
| GlobalIntlPluralRules, |
| supportedLocalesOf(locales) { |
| return supportedLocalesOf('pluralrules', locales, arguments[1]); |
| } |
| ); |
| |
| DEFINE_METHOD( |
| GlobalIntlPluralRules.prototype, |
| select(value) { |
| if (!%IsInitializedIntlObjectOfType(this, 'pluralrules')) { |
| throw %make_type_error(kIncompatibleMethodReceiver, |
| 'Intl.PluralRules.prototype.select', |
| this); |
| } |
| |
| return %PluralRulesSelect(this, TO_NUMBER(value) + 0); |
| } |
| ); |
| |
| /** |
| * Verifies that the input is a well-formed ISO 4217 currency code. |
| * Don't uppercase to test. It could convert invalid code into a valid one. |
| * For example \u00DFP (Eszett+P) becomes SSP. |
| */ |
| function isWellFormedCurrencyCode(currency) { |
| return typeof currency === "string" && currency.length === 3 && |
| IS_NULL(%regexp_internal_match(/[^A-Za-z]/, currency)); |
| } |
| |
| |
| function defaultNumberOption(value, min, max, fallback, property) { |
| if (!IS_UNDEFINED(value)) { |
| value = TO_NUMBER(value); |
| if (NUMBER_IS_NAN(value) || value < min || value > max) { |
| throw %make_range_error(kPropertyValueOutOfRange, property); |
| } |
| return %math_floor(value); |
| } |
| |
| return fallback; |
| } |
| |
| /** |
| * Returns the valid digit count for a property, or throws RangeError on |
| * a value out of the range. |
| */ |
| function getNumberOption(options, property, min, max, fallback) { |
| var value = options[property]; |
| return defaultNumberOption(value, min, max, fallback, property); |
| } |
| |
| // ECMA 402 #sec-setnfdigitoptions |
| // SetNumberFormatDigitOptions ( intlObj, options, mnfdDefault, mxfdDefault ) |
| function SetNumberFormatDigitOptions(internalOptions, options, |
| mnfdDefault, mxfdDefault) { |
| // Digit ranges. |
| var mnid = getNumberOption(options, 'minimumIntegerDigits', 1, 21, 1); |
| defineWEProperty(internalOptions, 'minimumIntegerDigits', mnid); |
| |
| var mnfd = getNumberOption(options, 'minimumFractionDigits', 0, 20, |
| mnfdDefault); |
| defineWEProperty(internalOptions, 'minimumFractionDigits', mnfd); |
| |
| var mxfdActualDefault = MathMax(mnfd, mxfdDefault); |
| |
| var mxfd = getNumberOption(options, 'maximumFractionDigits', mnfd, 20, |
| mxfdActualDefault); |
| |
| defineWEProperty(internalOptions, 'maximumFractionDigits', mxfd); |
| |
| var mnsd = options['minimumSignificantDigits']; |
| var mxsd = options['maximumSignificantDigits']; |
| if (!IS_UNDEFINED(mnsd) || !IS_UNDEFINED(mxsd)) { |
| mnsd = defaultNumberOption(mnsd, 1, 21, 1, 'minimumSignificantDigits'); |
| defineWEProperty(internalOptions, 'minimumSignificantDigits', mnsd); |
| |
| mxsd = defaultNumberOption(mxsd, mnsd, 21, 21, 'maximumSignificantDigits'); |
| defineWEProperty(internalOptions, 'maximumSignificantDigits', mxsd); |
| } |
| } |
| |
| /** |
| * Initializes the given object so it's a valid NumberFormat instance. |
| * Useful for subclassing. |
| */ |
| function CreateNumberFormat(locales, options) { |
| if (IS_UNDEFINED(options)) { |
| options = {__proto__: null}; |
| } |
| |
| var getOption = getGetOption(options, 'numberformat'); |
| |
| var locale = resolveLocale('numberformat', locales, options); |
| |
| var internalOptions = {__proto__: null}; |
| defineWEProperty(internalOptions, 'style', getOption( |
| 'style', 'string', ['decimal', 'percent', 'currency'], 'decimal')); |
| |
| var currency = getOption('currency', 'string'); |
| if (!IS_UNDEFINED(currency) && !isWellFormedCurrencyCode(currency)) { |
| throw %make_range_error(kInvalidCurrencyCode, currency); |
| } |
| |
| if (internalOptions.style === 'currency' && IS_UNDEFINED(currency)) { |
| throw %make_type_error(kCurrencyCode); |
| } |
| |
| var mnfdDefault, mxfdDefault; |
| |
| var currencyDisplay = getOption( |
| 'currencyDisplay', 'string', ['code', 'symbol', 'name'], 'symbol'); |
| if (internalOptions.style === 'currency') { |
| defineWEProperty(internalOptions, 'currency', %StringToUpperCaseIntl(currency)); |
| defineWEProperty(internalOptions, 'currencyDisplay', currencyDisplay); |
| |
| mnfdDefault = mxfdDefault = %CurrencyDigits(internalOptions.currency); |
| } else { |
| mnfdDefault = 0; |
| mxfdDefault = internalOptions.style === 'percent' ? 0 : 3; |
| } |
| |
| SetNumberFormatDigitOptions(internalOptions, options, mnfdDefault, |
| mxfdDefault); |
| |
| // Grouping. |
| defineWEProperty(internalOptions, 'useGrouping', getOption( |
| 'useGrouping', 'boolean', UNDEFINED, true)); |
| |
| // ICU prefers options to be passed using -u- extension key/values for |
| // number format, so we need to build that. |
| var extensionMap = parseExtension(locale.extension); |
| |
| /** |
| * Map of Unicode extensions to option properties, and their values and types, |
| * for a number format. |
| */ |
| var NUMBER_FORMAT_KEY_MAP = { |
| 'nu': {'property': UNDEFINED, 'type': 'string'} |
| }; |
| |
| var extension = setOptions(options, extensionMap, NUMBER_FORMAT_KEY_MAP, |
| getOption, internalOptions); |
| |
| var requestedLocale = locale.locale + extension; |
| var resolved = %object_define_properties({__proto__: null}, { |
| currency: {writable: true}, |
| currencyDisplay: {writable: true}, |
| locale: {writable: true}, |
| maximumFractionDigits: {writable: true}, |
| minimumFractionDigits: {writable: true}, |
| minimumIntegerDigits: {writable: true}, |
| numberingSystem: {writable: true}, |
| requestedLocale: {value: requestedLocale, writable: true}, |
| style: {value: internalOptions.style, writable: true}, |
| useGrouping: {writable: true} |
| }); |
| if (HAS_OWN_PROPERTY(internalOptions, 'minimumSignificantDigits')) { |
| defineWEProperty(resolved, 'minimumSignificantDigits', UNDEFINED); |
| } |
| if (HAS_OWN_PROPERTY(internalOptions, 'maximumSignificantDigits')) { |
| defineWEProperty(resolved, 'maximumSignificantDigits', UNDEFINED); |
| } |
| var numberFormat = %CreateNumberFormat(requestedLocale, internalOptions, |
| resolved); |
| |
| if (internalOptions.style === 'currency') { |
| %object_define_property(resolved, 'currencyDisplay', |
| {value: currencyDisplay, writable: true}); |
| } |
| |
| %MarkAsInitializedIntlObjectOfType(numberFormat, 'numberformat'); |
| numberFormat[resolvedSymbol] = resolved; |
| |
| return numberFormat; |
| } |
| |
| |
| /** |
| * Constructs Intl.NumberFormat object given optional locales and options |
| * parameters. |
| * |
| * @constructor |
| */ |
| function NumberFormatConstructor() { |
| return IntlConstruct(this, GlobalIntlNumberFormat, CreateNumberFormat, |
| new.target, arguments, true); |
| } |
| %SetCode(GlobalIntlNumberFormat, NumberFormatConstructor); |
| |
| |
| /** |
| * NumberFormat resolvedOptions method. |
| */ |
| DEFINE_METHOD( |
| GlobalIntlNumberFormat.prototype, |
| resolvedOptions() { |
| var format = Unwrap(this, 'numberformat', GlobalIntlNumberFormat, |
| 'resolvedOptions', true); |
| var result = { |
| locale: format[resolvedSymbol].locale, |
| numberingSystem: format[resolvedSymbol].numberingSystem, |
| style: format[resolvedSymbol].style, |
| useGrouping: format[resolvedSymbol].useGrouping, |
| minimumIntegerDigits: format[resolvedSymbol].minimumIntegerDigits, |
| minimumFractionDigits: format[resolvedSymbol].minimumFractionDigits, |
| maximumFractionDigits: format[resolvedSymbol].maximumFractionDigits, |
| }; |
| |
| if (result.style === 'currency') { |
| defineWECProperty(result, 'currency', format[resolvedSymbol].currency); |
| defineWECProperty(result, 'currencyDisplay', |
| format[resolvedSymbol].currencyDisplay); |
| } |
| |
| if (HAS_OWN_PROPERTY(format[resolvedSymbol], 'minimumSignificantDigits')) { |
| defineWECProperty(result, 'minimumSignificantDigits', |
| format[resolvedSymbol].minimumSignificantDigits); |
| } |
| |
| if (HAS_OWN_PROPERTY(format[resolvedSymbol], 'maximumSignificantDigits')) { |
| defineWECProperty(result, 'maximumSignificantDigits', |
| format[resolvedSymbol].maximumSignificantDigits); |
| } |
| |
| return result; |
| } |
| ); |
| |
| |
| /** |
| * Returns the subset of the given locale list for which this locale list |
| * has a matching (possibly fallback) locale. Locales appear in the same |
| * order in the returned list as in the input list. |
| * Options are optional parameter. |
| */ |
| DEFINE_METHOD( |
| GlobalIntlNumberFormat, |
| supportedLocalesOf(locales) { |
| return supportedLocalesOf('numberformat', locales, arguments[1]); |
| } |
| ); |
| |
| |
| /** |
| * Returns a String value representing the result of calling ToNumber(value) |
| * according to the effective locale and the formatting options of this |
| * NumberFormat. |
| */ |
| function formatNumber(formatter, value) { |
| // Spec treats -0 and +0 as 0. |
| var number = TO_NUMBER(value) + 0; |
| |
| return %InternalNumberFormat(formatter, number); |
| } |
| |
| |
| AddBoundMethod(GlobalIntlNumberFormat, 'format', formatNumber, 1, |
| 'numberformat', true); |
| |
| /** |
| * Returns a string that matches LDML representation of the options object. |
| */ |
| function toLDMLString(options) { |
| var getOption = getGetOption(options, 'dateformat'); |
| |
| var ldmlString = ''; |
| |
| var option = getOption('weekday', 'string', ['narrow', 'short', 'long']); |
| ldmlString += appendToLDMLString( |
| option, {narrow: 'EEEEE', short: 'EEE', long: 'EEEE'}); |
| |
| option = getOption('era', 'string', ['narrow', 'short', 'long']); |
| ldmlString += appendToLDMLString( |
| option, {narrow: 'GGGGG', short: 'GGG', long: 'GGGG'}); |
| |
| option = getOption('year', 'string', ['2-digit', 'numeric']); |
| ldmlString += appendToLDMLString(option, {'2-digit': 'yy', 'numeric': 'y'}); |
| |
| option = getOption('month', 'string', |
| ['2-digit', 'numeric', 'narrow', 'short', 'long']); |
| ldmlString += appendToLDMLString(option, {'2-digit': 'MM', 'numeric': 'M', |
| 'narrow': 'MMMMM', 'short': 'MMM', 'long': 'MMMM'}); |
| |
| option = getOption('day', 'string', ['2-digit', 'numeric']); |
| ldmlString += appendToLDMLString( |
| option, {'2-digit': 'dd', 'numeric': 'd'}); |
| |
| var hr12 = getOption('hour12', 'boolean'); |
| option = getOption('hour', 'string', ['2-digit', 'numeric']); |
| if (IS_UNDEFINED(hr12)) { |
| ldmlString += appendToLDMLString(option, {'2-digit': 'jj', 'numeric': 'j'}); |
| } else if (hr12 === true) { |
| ldmlString += appendToLDMLString(option, {'2-digit': 'hh', 'numeric': 'h'}); |
| } else { |
| ldmlString += appendToLDMLString(option, {'2-digit': 'HH', 'numeric': 'H'}); |
| } |
| |
| option = getOption('minute', 'string', ['2-digit', 'numeric']); |
| ldmlString += appendToLDMLString(option, {'2-digit': 'mm', 'numeric': 'm'}); |
| |
| option = getOption('second', 'string', ['2-digit', 'numeric']); |
| ldmlString += appendToLDMLString(option, {'2-digit': 'ss', 'numeric': 's'}); |
| |
| option = getOption('timeZoneName', 'string', ['short', 'long']); |
| ldmlString += appendToLDMLString(option, {short: 'z', long: 'zzzz'}); |
| |
| return ldmlString; |
| } |
| |
| |
| /** |
| * Returns either LDML equivalent of the current option or empty string. |
| */ |
| function appendToLDMLString(option, pairs) { |
| if (!IS_UNDEFINED(option)) { |
| return pairs[option]; |
| } else { |
| return ''; |
| } |
| } |
| |
| |
| /** |
| * Returns object that matches LDML representation of the date. |
| */ |
| function fromLDMLString(ldmlString) { |
| // First remove '' quoted text, so we lose 'Uhr' strings. |
| ldmlString = %RegExpInternalReplace(GetQuotedStringRE(), ldmlString, ''); |
| |
| var options = {__proto__: null}; |
| var match = %regexp_internal_match(/E{3,5}/, ldmlString); |
| options = appendToDateTimeObject( |
| options, 'weekday', match, {EEEEE: 'narrow', EEE: 'short', EEEE: 'long'}); |
| |
| match = %regexp_internal_match(/G{3,5}/, ldmlString); |
| options = appendToDateTimeObject( |
| options, 'era', match, {GGGGG: 'narrow', GGG: 'short', GGGG: 'long'}); |
| |
| match = %regexp_internal_match(/y{1,2}/, ldmlString); |
| options = appendToDateTimeObject( |
| options, 'year', match, {y: 'numeric', yy: '2-digit'}); |
| |
| match = %regexp_internal_match(/M{1,5}/, ldmlString); |
| options = appendToDateTimeObject(options, 'month', match, {MM: '2-digit', |
| M: 'numeric', MMMMM: 'narrow', MMM: 'short', MMMM: 'long'}); |
| |
| // Sometimes we get L instead of M for month - standalone name. |
| match = %regexp_internal_match(/L{1,5}/, ldmlString); |
| options = appendToDateTimeObject(options, 'month', match, {LL: '2-digit', |
| L: 'numeric', LLLLL: 'narrow', LLL: 'short', LLLL: 'long'}); |
| |
| match = %regexp_internal_match(/d{1,2}/, ldmlString); |
| options = appendToDateTimeObject( |
| options, 'day', match, {d: 'numeric', dd: '2-digit'}); |
| |
| match = %regexp_internal_match(/h{1,2}/, ldmlString); |
| if (match !== null) { |
| options['hour12'] = true; |
| } |
| options = appendToDateTimeObject( |
| options, 'hour', match, {h: 'numeric', hh: '2-digit'}); |
| |
| match = %regexp_internal_match(/H{1,2}/, ldmlString); |
| if (match !== null) { |
| options['hour12'] = false; |
| } |
| options = appendToDateTimeObject( |
| options, 'hour', match, {H: 'numeric', HH: '2-digit'}); |
| |
| match = %regexp_internal_match(/m{1,2}/, ldmlString); |
| options = appendToDateTimeObject( |
| options, 'minute', match, {m: 'numeric', mm: '2-digit'}); |
| |
| match = %regexp_internal_match(/s{1,2}/, ldmlString); |
| options = appendToDateTimeObject( |
| options, 'second', match, {s: 'numeric', ss: '2-digit'}); |
| |
| match = %regexp_internal_match(/z|zzzz/, ldmlString); |
| options = appendToDateTimeObject( |
| options, 'timeZoneName', match, {z: 'short', zzzz: 'long'}); |
| |
| return options; |
| } |
| |
| |
| function appendToDateTimeObject(options, option, match, pairs) { |
| if (IS_NULL(match)) { |
| if (!HAS_OWN_PROPERTY(options, option)) { |
| defineWEProperty(options, option, UNDEFINED); |
| } |
| return options; |
| } |
| |
| var property = match[0]; |
| defineWEProperty(options, option, pairs[property]); |
| |
| return options; |
| } |
| |
| |
| /** |
| * Returns options with at least default values in it. |
| */ |
| function toDateTimeOptions(options, required, defaults) { |
| if (IS_UNDEFINED(options)) { |
| options = {__proto__: null}; |
| } else { |
| options = TO_OBJECT(options); |
| } |
| |
| options = %object_create(options); |
| |
| var needsDefault = true; |
| if ((required === 'date' || required === 'any') && |
| (!IS_UNDEFINED(options.weekday) || !IS_UNDEFINED(options.year) || |
| !IS_UNDEFINED(options.month) || !IS_UNDEFINED(options.day))) { |
| needsDefault = false; |
| } |
| |
| if ((required === 'time' || required === 'any') && |
| (!IS_UNDEFINED(options.hour) || !IS_UNDEFINED(options.minute) || |
| !IS_UNDEFINED(options.second))) { |
| needsDefault = false; |
| } |
| |
| if (needsDefault && (defaults === 'date' || defaults === 'all')) { |
| %object_define_property(options, 'year', {value: 'numeric', |
| writable: true, |
| enumerable: true, |
| configurable: true}); |
| %object_define_property(options, 'month', {value: 'numeric', |
| writable: true, |
| enumerable: true, |
| configurable: true}); |
| %object_define_property(options, 'day', {value: 'numeric', |
| writable: true, |
| enumerable: true, |
| configurable: true}); |
| } |
| |
| if (needsDefault && (defaults === 'time' || defaults === 'all')) { |
| %object_define_property(options, 'hour', {value: 'numeric', |
| writable: true, |
| enumerable: true, |
| configurable: true}); |
| %object_define_property(options, 'minute', {value: 'numeric', |
| writable: true, |
| enumerable: true, |
| configurable: true}); |
| %object_define_property(options, 'second', {value: 'numeric', |
| writable: true, |
| enumerable: true, |
| configurable: true}); |
| } |
| |
| return options; |
| } |
| |
| |
| /** |
| * Initializes the given object so it's a valid DateTimeFormat instance. |
| * Useful for subclassing. |
| */ |
| function CreateDateTimeFormat(locales, options) { |
| if (IS_UNDEFINED(options)) { |
| options = {__proto__: null}; |
| } |
| |
| var locale = resolveLocale('dateformat', locales, options); |
| |
| options = toDateTimeOptions(options, 'any', 'date'); |
| |
| var getOption = getGetOption(options, 'dateformat'); |
| |
| // We implement only best fit algorithm, but still need to check |
| // if the formatMatcher values are in range. |
| var matcher = getOption('formatMatcher', 'string', |
| ['basic', 'best fit'], 'best fit'); |
| |
| // Build LDML string for the skeleton that we pass to the formatter. |
| var ldmlString = toLDMLString(options); |
| |
| // Filter out supported extension keys so we know what to put in resolved |
| // section later on. |
| // We need to pass calendar and number system to the method. |
| var tz = canonicalizeTimeZoneID(options.timeZone); |
| |
| // ICU prefers options to be passed using -u- extension key/values, so |
| // we need to build that. |
| var internalOptions = {__proto__: null}; |
| var extensionMap = parseExtension(locale.extension); |
| |
| /** |
| * Map of Unicode extensions to option properties, and their values and types, |
| * for a date/time format. |
| */ |
| var DATETIME_FORMAT_KEY_MAP = { |
| 'ca': {'property': UNDEFINED, 'type': 'string'}, |
| 'nu': {'property': UNDEFINED, 'type': 'string'} |
| }; |
| |
| var extension = setOptions(options, extensionMap, DATETIME_FORMAT_KEY_MAP, |
| getOption, internalOptions); |
| |
| var requestedLocale = locale.locale + extension; |
| var resolved = %object_define_properties({__proto__: null}, { |
| calendar: {writable: true}, |
| day: {writable: true}, |
| era: {writable: true}, |
| hour12: {writable: true}, |
| hour: {writable: true}, |
| locale: {writable: true}, |
| minute: {writable: true}, |
| month: {writable: true}, |
| numberingSystem: {writable: true}, |
| [patternSymbol]: {writable: true}, |
| requestedLocale: {value: requestedLocale, writable: true}, |
| second: {writable: true}, |
| timeZone: {writable: true}, |
| timeZoneName: {writable: true}, |
| tz: {value: tz, writable: true}, |
| weekday: {writable: true}, |
| year: {writable: true} |
| }); |
| |
| var dateFormat = %CreateDateTimeFormat( |
| requestedLocale, {skeleton: ldmlString, timeZone: tz}, resolved); |
| |
| if (resolved.timeZone === "Etc/Unknown") { |
| throw %make_range_error(kUnsupportedTimeZone, tz); |
| } |
| |
| %MarkAsInitializedIntlObjectOfType(dateFormat, 'dateformat'); |
| dateFormat[resolvedSymbol] = resolved; |
| |
| return dateFormat; |
| } |
| |
| |
| /** |
| * Constructs Intl.DateTimeFormat object given optional locales and options |
| * parameters. |
| * |
| * @constructor |
| */ |
| function DateTimeFormatConstructor() { |
| return IntlConstruct(this, GlobalIntlDateTimeFormat, CreateDateTimeFormat, |
| new.target, arguments, true); |
| } |
| %SetCode(GlobalIntlDateTimeFormat, DateTimeFormatConstructor); |
| |
| |
| /** |
| * DateTimeFormat resolvedOptions method. |
| */ |
| DEFINE_METHOD( |
| GlobalIntlDateTimeFormat.prototype, |
| resolvedOptions() { |
| var format = Unwrap(this, 'dateformat', GlobalIntlDateTimeFormat, |
| 'resolvedOptions', true); |
| |
| /** |
| * Maps ICU calendar names to LDML/BCP47 types for key 'ca'. |
| * See typeMap section in third_party/icu/source/data/misc/keyTypeData.txt |
| * and |
| * http://www.unicode.org/repos/cldr/tags/latest/common/bcp47/calendar.xml |
| */ |
| var ICU_CALENDAR_MAP = { |
| 'gregorian': 'gregory', |
| 'ethiopic-amete-alem': 'ethioaa' |
| }; |
| |
| var fromPattern = fromLDMLString(format[resolvedSymbol][patternSymbol]); |
| var userCalendar = ICU_CALENDAR_MAP[format[resolvedSymbol].calendar]; |
| if (IS_UNDEFINED(userCalendar)) { |
| // No match means that ICU's legacy name is identical to LDML/BCP type. |
| userCalendar = format[resolvedSymbol].calendar; |
| } |
| |
| var result = { |
| locale: format[resolvedSymbol].locale, |
| numberingSystem: format[resolvedSymbol].numberingSystem, |
| calendar: userCalendar, |
| timeZone: format[resolvedSymbol].timeZone |
| }; |
| |
| addWECPropertyIfDefined(result, 'timeZoneName', fromPattern.timeZoneName); |
| addWECPropertyIfDefined(result, 'era', fromPattern.era); |
| addWECPropertyIfDefined(result, 'year', fromPattern.year); |
| addWECPropertyIfDefined(result, 'month', fromPattern.month); |
| addWECPropertyIfDefined(result, 'day', fromPattern.day); |
| addWECPropertyIfDefined(result, 'weekday', fromPattern.weekday); |
| addWECPropertyIfDefined(result, 'hour12', fromPattern.hour12); |
| addWECPropertyIfDefined(result, 'hour', fromPattern.hour); |
| addWECPropertyIfDefined(result, 'minute', fromPattern.minute); |
| addWECPropertyIfDefined(result, 'second', fromPattern.second); |
| |
| return result; |
| } |
| ); |
| |
| |
| /** |
| * Returns the subset of the given locale list for which this locale list |
| * has a matching (possibly fallback) locale. Locales appear in the same |
| * order in the returned list as in the input list. |
| * Options are optional parameter. |
| */ |
| DEFINE_METHOD( |
| GlobalIntlDateTimeFormat, |
| supportedLocalesOf(locales) { |
| return supportedLocalesOf('dateformat', locales, arguments[1]); |
| } |
| ); |
| |
| |
| /** |
| * Returns a String value representing the result of calling ToNumber(date) |
| * according to the effective locale and the formatting options of this |
| * DateTimeFormat. |
| */ |
| function formatDate(formatter, dateValue) { |
| var dateMs; |
| if (IS_UNDEFINED(dateValue)) { |
| dateMs = %DateCurrentTime(); |
| } else { |
| dateMs = TO_NUMBER(dateValue); |
| } |
| |
| return %InternalDateFormat(formatter, dateMs); |
| } |
| |
| DEFINE_METHOD( |
| GlobalIntlDateTimeFormat.prototype, |
| formatToParts(dateValue) { |
| REQUIRE_OBJECT_COERCIBLE(this, "Intl.DateTimeFormat.prototype.formatToParts"); |
| if (!IS_OBJECT(this)) { |
| throw %make_type_error(kCalledOnNonObject, this); |
| } |
| if (!%IsInitializedIntlObjectOfType(this, 'dateformat')) { |
| throw %make_type_error(kIncompatibleMethodReceiver, |
| 'Intl.DateTimeFormat.prototype.formatToParts', |
| this); |
| } |
| var dateMs; |
| if (IS_UNDEFINED(dateValue)) { |
| dateMs = %DateCurrentTime(); |
| } else { |
| dateMs = TO_NUMBER(dateValue); |
| } |
| |
| return %InternalDateFormatToParts(this, dateMs); |
| } |
| ); |
| |
| |
| // Length is 1 as specified in ECMA 402 v2+ |
| AddBoundMethod(GlobalIntlDateTimeFormat, 'format', formatDate, 1, 'dateformat', |
| true); |
| |
| |
| /** |
| * Returns canonical Area/Location(/Location) name, or throws an exception |
| * if the zone name is invalid IANA name. |
| */ |
| function canonicalizeTimeZoneID(tzID) { |
| // Skip undefined zones. |
| if (IS_UNDEFINED(tzID)) { |
| return tzID; |
| } |
| |
| // Convert zone name to string. |
| tzID = TO_STRING(tzID); |
| |
| // Special case handling (UTC, GMT). |
| var upperID = %StringToUpperCaseIntl(tzID); |
| if (upperID === 'UTC' || upperID === 'GMT' || |
| upperID === 'ETC/UTC' || upperID === 'ETC/GMT') { |
| return 'UTC'; |
| } |
| |
| // TODO(jshin): Add support for Etc/GMT[+-]([1-9]|1[0-2]) |
| |
| // We expect only _, '-' and / beside ASCII letters. |
| // All inputs should conform to Area/Location(/Location)* from now on. |
| var match = %regexp_internal_match(GetTimezoneNameCheckRE(), tzID); |
| if (IS_NULL(match)) throw %make_range_error(kExpectedTimezoneID, tzID); |
| |
| var result = toTitleCaseTimezoneLocation(match[1]) + '/' + |
| toTitleCaseTimezoneLocation(match[2]); |
| |
| if (!IS_UNDEFINED(match[3]) && 3 < match.length) { |
| var locations = %StringSplit(match[3], '/', kMaxUint32); |
| // The 1st element is empty. Starts with i=1. |
| for (var i = 1; i < locations.length; i++) { |
| result = result + '/' + toTitleCaseTimezoneLocation(locations[i]); |
| } |
| } |
| |
| return result; |
| } |
| |
| /** |
| * Initializes the given object so it's a valid BreakIterator instance. |
| * Useful for subclassing. |
| */ |
| function CreateBreakIterator(locales, options) { |
| if (IS_UNDEFINED(options)) { |
| options = {__proto__: null}; |
| } |
| |
| var getOption = getGetOption(options, 'breakiterator'); |
| |
| var internalOptions = {__proto__: null}; |
| |
| defineWEProperty(internalOptions, 'type', getOption( |
| 'type', 'string', ['character', 'word', 'sentence', 'line'], 'word')); |
| |
| var locale = resolveLocale('breakiterator', locales, options); |
| var resolved = %object_define_properties({__proto__: null}, { |
| requestedLocale: {value: locale.locale, writable: true}, |
| type: {value: internalOptions.type, writable: true}, |
| locale: {writable: true} |
| }); |
| |
| var iterator = %CreateBreakIterator(locale.locale, internalOptions, resolved); |
| |
| %MarkAsInitializedIntlObjectOfType(iterator, 'breakiterator'); |
| iterator[resolvedSymbol] = resolved; |
| |
| return iterator; |
| } |
| |
| |
| /** |
| * Constructs Intl.v8BreakIterator object given optional locales and options |
| * parameters. |
| * |
| * @constructor |
| */ |
| function v8BreakIteratorConstructor() { |
| return IntlConstruct(this, GlobalIntlv8BreakIterator, CreateBreakIterator, |
| new.target, arguments); |
| } |
| %SetCode(GlobalIntlv8BreakIterator, v8BreakIteratorConstructor); |
| |
| |
| /** |
| * BreakIterator resolvedOptions method. |
| */ |
| DEFINE_METHOD( |
| GlobalIntlv8BreakIterator.prototype, |
| resolvedOptions() { |
| if (!IS_UNDEFINED(new.target)) { |
| throw %make_type_error(kOrdinaryFunctionCalledAsConstructor); |
| } |
| |
| var segmenter = Unwrap(this, 'breakiterator', GlobalIntlv8BreakIterator, |
| 'resolvedOptions', false); |
| |
| return { |
| locale: segmenter[resolvedSymbol].locale, |
| type: segmenter[resolvedSymbol].type |
| }; |
| } |
| ); |
| |
| |
| /** |
| * Returns the subset of the given locale list for which this locale list |
| * has a matching (possibly fallback) locale. Locales appear in the same |
| * order in the returned list as in the input list. |
| * Options are optional parameter. |
| */ |
| DEFINE_METHOD( |
| GlobalIntlv8BreakIterator, |
| supportedLocalesOf(locales) { |
| if (!IS_UNDEFINED(new.target)) { |
| throw %make_type_error(kOrdinaryFunctionCalledAsConstructor); |
| } |
| |
| return supportedLocalesOf('breakiterator', locales, arguments[1]); |
| } |
| ); |
| |
| |
| /** |
| * Adopts text to segment using the iterator. Old text, if present, |
| * gets discarded. |
| */ |
| function adoptText(iterator, text) { |
| %BreakIteratorAdoptText(iterator, TO_STRING(text)); |
| } |
| |
| |
| /** |
| * Returns index of the first break in the string and moves current pointer. |
| */ |
| function first(iterator) { |
| return %BreakIteratorFirst(iterator); |
| } |
| |
| |
| /** |
| * Returns the index of the next break and moves the pointer. |
| */ |
| function next(iterator) { |
| return %BreakIteratorNext(iterator); |
| } |
| |
| |
| /** |
| * Returns index of the current break. |
| */ |
| function current(iterator) { |
| return %BreakIteratorCurrent(iterator); |
| } |
| |
| |
| /** |
| * Returns type of the current break. |
| */ |
| function breakType(iterator) { |
| return %BreakIteratorBreakType(iterator); |
| } |
| |
| |
| AddBoundMethod(GlobalIntlv8BreakIterator, 'adoptText', adoptText, 1, |
| 'breakiterator'); |
| AddBoundMethod(GlobalIntlv8BreakIterator, 'first', first, 0, 'breakiterator'); |
| AddBoundMethod(GlobalIntlv8BreakIterator, 'next', next, 0, 'breakiterator'); |
| AddBoundMethod(GlobalIntlv8BreakIterator, 'current', current, 0, |
| 'breakiterator'); |
| AddBoundMethod(GlobalIntlv8BreakIterator, 'breakType', breakType, 0, |
| 'breakiterator'); |
| |
| // Save references to Intl objects and methods we use, for added security. |
| var savedObjects = { |
| 'collator': GlobalIntlCollator, |
| 'numberformat': GlobalIntlNumberFormat, |
| 'dateformatall': GlobalIntlDateTimeFormat, |
| 'dateformatdate': GlobalIntlDateTimeFormat, |
| 'dateformattime': GlobalIntlDateTimeFormat |
| }; |
| |
| |
| // Default (created with undefined locales and options parameters) collator, |
| // number and date format instances. They'll be created as needed. |
| var defaultObjects = { |
| 'collator': UNDEFINED, |
| 'numberformat': UNDEFINED, |
| 'dateformatall': UNDEFINED, |
| 'dateformatdate': UNDEFINED, |
| 'dateformattime': UNDEFINED, |
| }; |
| |
| function clearDefaultObjects() { |
| defaultObjects['dateformatall'] = UNDEFINED; |
| defaultObjects['dateformatdate'] = UNDEFINED; |
| defaultObjects['dateformattime'] = UNDEFINED; |
| } |
| |
| var date_cache_version = 0; |
| |
| function checkDateCacheCurrent() { |
| var new_date_cache_version = %DateCacheVersion(); |
| if (new_date_cache_version == date_cache_version) { |
| return; |
| } |
| date_cache_version = new_date_cache_version; |
| |
| clearDefaultObjects(); |
| } |
| |
| /** |
| * Returns cached or newly created instance of a given service. |
| * We cache only default instances (where no locales or options are provided). |
| */ |
| function cachedOrNewService(service, locales, options, defaults) { |
| var useOptions = (IS_UNDEFINED(defaults)) ? options : defaults; |
| if (IS_UNDEFINED(locales) && IS_UNDEFINED(options)) { |
| checkDateCacheCurrent(); |
| if (IS_UNDEFINED(defaultObjects[service])) { |
| defaultObjects[service] = new savedObjects[service](locales, useOptions); |
| } |
| return defaultObjects[service]; |
| } |
| return new savedObjects[service](locales, useOptions); |
| } |
| |
| function LocaleConvertCase(s, locales, isToUpper) { |
| // ECMA 402 section 13.1.2 steps 1 through 12. |
| var language; |
| // Optimize for the most common two cases. initializeLocaleList() can handle |
| // them as well, but it's rather slow accounting for over 60% of |
| // toLocale{U,L}Case() and about 40% of toLocale{U,L}Case("<locale>"). |
| if (IS_UNDEFINED(locales)) { |
| language = GetDefaultICULocaleJS(); |
| } else if (IS_STRING(locales)) { |
| language = canonicalizeLanguageTag(locales); |
| } else { |
| var locales = initializeLocaleList(locales); |
| language = locales.length > 0 ? locales[0] : GetDefaultICULocaleJS(); |
| } |
| |
| // StringSplit is slower than this. |
| var pos = %StringIndexOf(language, '-', 0); |
| if (pos !== -1) { |
| language = %_Call(StringSubstring, language, 0, pos); |
| } |
| |
| return %StringLocaleConvertCase(s, isToUpper, language); |
| } |
| |
| /** |
| * Compares this and that, and returns less than 0, 0 or greater than 0 value. |
| * Overrides the built-in method. |
| */ |
| DEFINE_METHOD( |
| GlobalString.prototype, |
| localeCompare(that) { |
| if (IS_NULL_OR_UNDEFINED(this)) { |
| throw %make_type_error(kMethodInvokedOnNullOrUndefined); |
| } |
| |
| var locales = arguments[1]; |
| var options = arguments[2]; |
| var collator = cachedOrNewService('collator', locales, options); |
| return compare(collator, this, that); |
| } |
| ); |
| |
| DEFINE_METHODS_LEN( |
| GlobalString.prototype, |
| { |
| toLocaleLowerCase(locales) { |
| REQUIRE_OBJECT_COERCIBLE(this, "String.prototype.toLocaleLowerCase"); |
| return LocaleConvertCase(TO_STRING(this), locales, false); |
| } |
| |
| toLocaleUpperCase(locales) { |
| REQUIRE_OBJECT_COERCIBLE(this, "String.prototype.toLocaleUpperCase"); |
| return LocaleConvertCase(TO_STRING(this), locales, true); |
| } |
| }, |
| 0 /* Set function length of both methods. */ |
| ); |
| |
| |
| /** |
| * Formats a Number object (this) using locale and options values. |
| * If locale or options are omitted, defaults are used. |
| */ |
| DEFINE_METHOD( |
| GlobalNumber.prototype, |
| toLocaleString() { |
| if (!(this instanceof GlobalNumber) && typeof(this) !== 'number') { |
| throw %make_type_error(kMethodInvokedOnWrongType, "Number"); |
| } |
| |
| var locales = arguments[0]; |
| var options = arguments[1]; |
| var numberFormat = cachedOrNewService('numberformat', locales, options); |
| return formatNumber(numberFormat, this); |
| } |
| ); |
| |
| |
| /** |
| * Returns actual formatted date or fails if date parameter is invalid. |
| */ |
| function toLocaleDateTime(date, locales, options, required, defaults, service) { |
| if (!(date instanceof GlobalDate)) { |
| throw %make_type_error(kMethodInvokedOnWrongType, "Date"); |
| } |
| |
| var dateValue = TO_NUMBER(date); |
| if (NUMBER_IS_NAN(dateValue)) return 'Invalid Date'; |
| |
| var internalOptions = toDateTimeOptions(options, required, defaults); |
| |
| var dateFormat = |
| cachedOrNewService(service, locales, options, internalOptions); |
| |
| return formatDate(dateFormat, date); |
| } |
| |
| |
| /** |
| * Formats a Date object (this) using locale and options values. |
| * If locale or options are omitted, defaults are used - both date and time are |
| * present in the output. |
| */ |
| DEFINE_METHOD( |
| GlobalDate.prototype, |
| toLocaleString() { |
| var locales = arguments[0]; |
| var options = arguments[1]; |
| return toLocaleDateTime( |
| this, locales, options, 'any', 'all', 'dateformatall'); |
| } |
| ); |
| |
| |
| /** |
| * Formats a Date object (this) using locale and options values. |
| * If locale or options are omitted, defaults are used - only date is present |
| * in the output. |
| */ |
| DEFINE_METHOD( |
| GlobalDate.prototype, |
| toLocaleDateString() { |
| var locales = arguments[0]; |
| var options = arguments[1]; |
| return toLocaleDateTime( |
| this, locales, options, 'date', 'date', 'dateformatdate'); |
| } |
| ); |
| |
| |
| /** |
| * Formats a Date object (this) using locale and options values. |
| * If locale or options are omitted, defaults are used - only time is present |
| * in the output. |
| */ |
| DEFINE_METHOD( |
| GlobalDate.prototype, |
| toLocaleTimeString() { |
| var locales = arguments[0]; |
| var options = arguments[1]; |
| return toLocaleDateTime( |
| this, locales, options, 'time', 'time', 'dateformattime'); |
| } |
| ); |
| |
| }) |