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| 1 // Copyright 2013 the V8 project authors. All rights reserved. |
| 2 // Redistribution and use in source and binary forms, with or without |
| 3 // modification, are permitted provided that the following conditions are |
| 4 // met: |
| 5 // |
| 6 // * Redistributions of source code must retain the above copyright |
| 7 // notice, this list of conditions and the following disclaimer. |
| 8 // * Redistributions in binary form must reproduce the above |
| 9 // copyright notice, this list of conditions and the following |
| 10 // disclaimer in the documentation and/or other materials provided |
| 11 // with the distribution. |
| 12 // * Neither the name of Google Inc. nor the names of its |
| 13 // contributors may be used to endorse or promote products derived |
| 14 // from this software without specific prior written permission. |
| 15 // |
| 16 // THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS |
| 17 // "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT |
| 18 // LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR |
| 19 // A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT |
| 20 // OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, |
| 21 // SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT |
| 22 // LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, |
| 23 // DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY |
| 24 // THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT |
| 25 // (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE |
| 26 // OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE. |
| 27 // limitations under the License. |
| 28 |
| 29 // ECMAScript 402 API implementation. |
| 30 |
| 31 /** |
| 32 * Intl object is a single object that has some named properties, |
| 33 * all of which are constructors. |
| 34 */ |
| 35 $Object.defineProperty(global, "Intl", { enumerable: false, value: (function() { |
| 36 |
| 37 'use strict'; |
| 38 |
| 39 var Intl = {}; |
| 40 |
| 41 var undefined = global.undefined; |
| 42 |
| 43 var AVAILABLE_SERVICES = ['collator', |
| 44 'numberformat', |
| 45 'dateformat', |
| 46 'breakiterator']; |
| 47 |
| 48 /** |
| 49 * Caches available locales for each service. |
| 50 */ |
| 51 var AVAILABLE_LOCALES = { |
| 52 'collator': undefined, |
| 53 'numberformat': undefined, |
| 54 'dateformat': undefined, |
| 55 'breakiterator': undefined |
| 56 }; |
| 57 |
| 58 /** |
| 59 * Caches default ICU locale. |
| 60 */ |
| 61 var DEFAULT_ICU_LOCALE = undefined; |
| 62 |
| 63 /** |
| 64 * Unicode extension regular expression. |
| 65 */ |
| 66 var UNICODE_EXTENSION_RE = undefined; |
| 67 |
| 68 function GetUnicodeExtensionRE() { |
| 69 if (UNICODE_EXTENSION_RE === undefined) { |
| 70 UNICODE_EXTENSION_RE = new $RegExp('-u(-[a-z0-9]{2,8})+', 'g'); |
| 71 } |
| 72 return UNICODE_EXTENSION_RE; |
| 73 } |
| 74 |
| 75 /** |
| 76 * Matches any Unicode extension. |
| 77 */ |
| 78 var ANY_EXTENSION_RE = undefined; |
| 79 |
| 80 function GetAnyExtensionRE() { |
| 81 if (ANY_EXTENSION_RE === undefined) { |
| 82 ANY_EXTENSION_RE = new $RegExp('-[a-z0-9]{1}-.*', 'g'); |
| 83 } |
| 84 return ANY_EXTENSION_RE; |
| 85 } |
| 86 |
| 87 /** |
| 88 * Replace quoted text (single quote, anything but the quote and quote again). |
| 89 */ |
| 90 var QUOTED_STRING_RE = undefined; |
| 91 |
| 92 function GetQuotedStringRE() { |
| 93 if (QUOTED_STRING_RE === undefined) { |
| 94 QUOTED_STRING_RE = new $RegExp("'[^']+'", 'g'); |
| 95 } |
| 96 return QUOTED_STRING_RE; |
| 97 } |
| 98 |
| 99 /** |
| 100 * Matches valid service name. |
| 101 */ |
| 102 var SERVICE_RE = undefined; |
| 103 |
| 104 function GetServiceRE() { |
| 105 if (SERVICE_RE === undefined) { |
| 106 SERVICE_RE = |
| 107 new $RegExp('^(collator|numberformat|dateformat|breakiterator)$'); |
| 108 } |
| 109 return SERVICE_RE; |
| 110 } |
| 111 |
| 112 /** |
| 113 * Validates a language tag against bcp47 spec. |
| 114 * Actual value is assigned on first run. |
| 115 */ |
| 116 var LANGUAGE_TAG_RE = undefined; |
| 117 |
| 118 function GetLanguageTagRE() { |
| 119 if (LANGUAGE_TAG_RE === undefined) { |
| 120 BuildLanguageTagREs(); |
| 121 } |
| 122 return LANGUAGE_TAG_RE; |
| 123 } |
| 124 |
| 125 /** |
| 126 * Helps find duplicate variants in the language tag. |
| 127 */ |
| 128 var LANGUAGE_VARIANT_RE = undefined; |
| 129 |
| 130 function GetLanguageVariantRE() { |
| 131 if (LANGUAGE_VARIANT_RE === undefined) { |
| 132 BuildLanguageTagREs(); |
| 133 } |
| 134 return LANGUAGE_VARIANT_RE; |
| 135 } |
| 136 |
| 137 /** |
| 138 * Helps find duplicate singletons in the language tag. |
| 139 */ |
| 140 var LANGUAGE_SINGLETON_RE = undefined; |
| 141 |
| 142 function GetLanguageSingletonRE() { |
| 143 if (LANGUAGE_SINGLETON_RE === undefined) { |
| 144 BuildLanguageTagREs(); |
| 145 } |
| 146 return LANGUAGE_SINGLETON_RE; |
| 147 } |
| 148 |
| 149 /** |
| 150 * Matches valid IANA time zone names. |
| 151 */ |
| 152 var TIMEZONE_NAME_CHECK_RE = undefined; |
| 153 |
| 154 function GetTimezoneNameCheckRE() { |
| 155 if (TIMEZONE_NAME_CHECK_RE === undefined) { |
| 156 TIMEZONE_NAME_CHECK_RE = |
| 157 new $RegExp('^([A-Za-z]+)/([A-Za-z]+)(?:_([A-Za-z]+))*$'); |
| 158 } |
| 159 return TIMEZONE_NAME_CHECK_RE; |
| 160 } |
| 161 |
| 162 /** |
| 163 * Maps ICU calendar names into LDML type. |
| 164 */ |
| 165 var ICU_CALENDAR_MAP = { |
| 166 'gregorian': 'gregory', |
| 167 'japanese': 'japanese', |
| 168 'buddhist': 'buddhist', |
| 169 'roc': 'roc', |
| 170 'persian': 'persian', |
| 171 'islamic-civil': 'islamicc', |
| 172 'islamic': 'islamic', |
| 173 'hebrew': 'hebrew', |
| 174 'chinese': 'chinese', |
| 175 'indian': 'indian', |
| 176 'coptic': 'coptic', |
| 177 'ethiopic': 'ethiopic', |
| 178 'ethiopic-amete-alem': 'ethioaa' |
| 179 }; |
| 180 |
| 181 /** |
| 182 * Map of Unicode extensions to option properties, and their values and types, |
| 183 * for a collator. |
| 184 */ |
| 185 var COLLATOR_KEY_MAP = { |
| 186 'kn': {'property': 'numeric', 'type': 'boolean'}, |
| 187 'kf': {'property': 'caseFirst', 'type': 'string', |
| 188 'values': ['false', 'lower', 'upper']} |
| 189 }; |
| 190 |
| 191 /** |
| 192 * Map of Unicode extensions to option properties, and their values and types, |
| 193 * for a number format. |
| 194 */ |
| 195 var NUMBER_FORMAT_KEY_MAP = { |
| 196 'nu': {'property': undefined, 'type': 'string'} |
| 197 }; |
| 198 |
| 199 /** |
| 200 * Map of Unicode extensions to option properties, and their values and types, |
| 201 * for a date/time format. |
| 202 */ |
| 203 var DATETIME_FORMAT_KEY_MAP = { |
| 204 'ca': {'property': undefined, 'type': 'string'}, |
| 205 'nu': {'property': undefined, 'type': 'string'} |
| 206 }; |
| 207 |
| 208 /** |
| 209 * Allowed -u-co- values. List taken from: |
| 210 * http://unicode.org/repos/cldr/trunk/common/bcp47/collation.xml |
| 211 */ |
| 212 var ALLOWED_CO_VALUES = [ |
| 213 'big5han', 'dict', 'direct', 'ducet', 'gb2312', 'phonebk', 'phonetic', |
| 214 'pinyin', 'reformed', 'searchjl', 'stroke', 'trad', 'unihan', 'zhuyin' |
| 215 ]; |
| 216 |
| 217 /** |
| 218 * Error message for when function object is created with new and it's not |
| 219 * a constructor. |
| 220 */ |
| 221 var ORDINARY_FUNCTION_CALLED_AS_CONSTRUCTOR = |
| 222 'Function object that\'s not a constructor was created with new'; |
| 223 |
| 224 |
| 225 /** |
| 226 * Adds bound method to the prototype of the given object. |
| 227 */ |
| 228 function addBoundMethod(obj, methodName, implementation, length) { |
| 229 function getter() { |
| 230 if (!this || typeof this !== 'object' || |
| 231 this.__initializedIntlObject === undefined) { |
| 232 throw new $TypeError('Method ' + methodName + ' called on a ' + |
| 233 'non-object or on a wrong type of object.'); |
| 234 } |
| 235 var internalName = '__bound' + methodName + '__'; |
| 236 if (this[internalName] === undefined) { |
| 237 var that = this; |
| 238 var boundMethod; |
| 239 if (length === undefined || length === 2) { |
| 240 boundMethod = function(x, y) { |
| 241 if (%_IsConstructCall()) { |
| 242 throw new $TypeError(ORDINARY_FUNCTION_CALLED_AS_CONSTRUCTOR); |
| 243 } |
| 244 return implementation(that, x, y); |
| 245 } |
| 246 } else if (length === 1) { |
| 247 boundMethod = function(x) { |
| 248 if (%_IsConstructCall()) { |
| 249 throw new $TypeError(ORDINARY_FUNCTION_CALLED_AS_CONSTRUCTOR); |
| 250 } |
| 251 return implementation(that, x); |
| 252 } |
| 253 } else { |
| 254 boundMethod = function() { |
| 255 if (%_IsConstructCall()) { |
| 256 throw new $TypeError(ORDINARY_FUNCTION_CALLED_AS_CONSTRUCTOR); |
| 257 } |
| 258 // DateTimeFormat.format needs to be 0 arg method, but can stil |
| 259 // receive optional dateValue param. If one was provided, pass it |
| 260 // along. |
| 261 if (arguments.length > 0) { |
| 262 return implementation(that, arguments[0]); |
| 263 } else { |
| 264 return implementation(that); |
| 265 } |
| 266 } |
| 267 } |
| 268 %FunctionSetName(boundMethod, internalName); |
| 269 %FunctionRemovePrototype(boundMethod); |
| 270 %SetNativeFlag(boundMethod); |
| 271 this[internalName] = boundMethod; |
| 272 } |
| 273 return this[internalName]; |
| 274 } |
| 275 |
| 276 %FunctionSetName(getter, methodName); |
| 277 %FunctionRemovePrototype(getter); |
| 278 %SetNativeFlag(getter); |
| 279 |
| 280 $Object.defineProperty(obj.prototype, methodName, { |
| 281 get: getter, |
| 282 enumerable: false, |
| 283 configurable: true |
| 284 }); |
| 285 } |
| 286 |
| 287 |
| 288 /** |
| 289 * Returns an intersection of locales and service supported locales. |
| 290 * Parameter locales is treated as a priority list. |
| 291 */ |
| 292 function supportedLocalesOf(service, locales, options) { |
| 293 if (service.match(GetServiceRE()) === null) { |
| 294 throw new $Error('Internal error, wrong service type: ' + service); |
| 295 } |
| 296 |
| 297 // Provide defaults if matcher was not specified. |
| 298 if (options === undefined) { |
| 299 options = {}; |
| 300 } else { |
| 301 options = toObject(options); |
| 302 } |
| 303 |
| 304 var matcher = options.localeMatcher; |
| 305 if (matcher !== undefined) { |
| 306 matcher = $String(matcher); |
| 307 if (matcher !== 'lookup' && matcher !== 'best fit') { |
| 308 throw new $RangeError('Illegal value for localeMatcher:' + matcher); |
| 309 } |
| 310 } else { |
| 311 matcher = 'best fit'; |
| 312 } |
| 313 |
| 314 var requestedLocales = initializeLocaleList(locales); |
| 315 |
| 316 // Cache these, they don't ever change per service. |
| 317 if (AVAILABLE_LOCALES[service] === undefined) { |
| 318 AVAILABLE_LOCALES[service] = getAvailableLocalesOf(service); |
| 319 } |
| 320 |
| 321 // Use either best fit or lookup algorithm to match locales. |
| 322 if (matcher === 'best fit') { |
| 323 return initializeLocaleList(bestFitSupportedLocalesOf( |
| 324 requestedLocales, AVAILABLE_LOCALES[service])); |
| 325 } |
| 326 |
| 327 return initializeLocaleList(lookupSupportedLocalesOf( |
| 328 requestedLocales, AVAILABLE_LOCALES[service])); |
| 329 } |
| 330 |
| 331 |
| 332 /** |
| 333 * Returns the subset of the provided BCP 47 language priority list for which |
| 334 * this service has a matching locale when using the BCP 47 Lookup algorithm. |
| 335 * Locales appear in the same order in the returned list as in the input list. |
| 336 */ |
| 337 function lookupSupportedLocalesOf(requestedLocales, availableLocales) { |
| 338 var matchedLocales = []; |
| 339 for (var i = 0; i < requestedLocales.length; ++i) { |
| 340 // Remove -u- extension. |
| 341 var locale = requestedLocales[i].replace(GetUnicodeExtensionRE(), ''); |
| 342 do { |
| 343 if (availableLocales[locale] !== undefined) { |
| 344 // Push requested locale not the resolved one. |
| 345 matchedLocales.push(requestedLocales[i]); |
| 346 break; |
| 347 } |
| 348 // Truncate locale if possible, if not break. |
| 349 var pos = locale.lastIndexOf('-'); |
| 350 if (pos === -1) { |
| 351 break; |
| 352 } |
| 353 locale = locale.substring(0, pos); |
| 354 } while (true); |
| 355 } |
| 356 |
| 357 return matchedLocales; |
| 358 } |
| 359 |
| 360 |
| 361 /** |
| 362 * Returns the subset of the provided BCP 47 language priority list for which |
| 363 * this service has a matching locale when using the implementation |
| 364 * dependent algorithm. |
| 365 * Locales appear in the same order in the returned list as in the input list. |
| 366 */ |
| 367 function bestFitSupportedLocalesOf(requestedLocales, availableLocales) { |
| 368 // TODO(cira): implement better best fit algorithm. |
| 369 return lookupSupportedLocalesOf(requestedLocales, availableLocales); |
| 370 } |
| 371 |
| 372 |
| 373 /** |
| 374 * Returns a getOption function that extracts property value for given |
| 375 * options object. If property is missing it returns defaultValue. If value |
| 376 * is out of range for that property it throws RangeError. |
| 377 */ |
| 378 function getGetOption(options, caller) { |
| 379 if (options === undefined) { |
| 380 throw new $Error('Internal ' + caller + ' error. ' + |
| 381 'Default options are missing.'); |
| 382 } |
| 383 |
| 384 var getOption = function getOption(property, type, values, defaultValue) { |
| 385 if (options[property] !== undefined) { |
| 386 var value = options[property]; |
| 387 switch (type) { |
| 388 case 'boolean': |
| 389 value = $Boolean(value); |
| 390 break; |
| 391 case 'string': |
| 392 value = $String(value); |
| 393 break; |
| 394 case 'number': |
| 395 value = $Number(value); |
| 396 break; |
| 397 default: |
| 398 throw new $Error('Internal error. Wrong value type.'); |
| 399 } |
| 400 if (values !== undefined && values.indexOf(value) === -1) { |
| 401 throw new $RangeError('Value ' + value + ' out of range for ' + caller + |
| 402 ' options property ' + property); |
| 403 } |
| 404 |
| 405 return value; |
| 406 } |
| 407 |
| 408 return defaultValue; |
| 409 } |
| 410 |
| 411 return getOption; |
| 412 } |
| 413 |
| 414 |
| 415 /** |
| 416 * Compares a BCP 47 language priority list requestedLocales against the locales |
| 417 * in availableLocales and determines the best available language to meet the |
| 418 * request. Two algorithms are available to match the locales: the Lookup |
| 419 * algorithm described in RFC 4647 section 3.4, and an implementation dependent |
| 420 * best-fit algorithm. Independent of the locale matching algorithm, options |
| 421 * specified through Unicode locale extension sequences are negotiated |
| 422 * separately, taking the caller's relevant extension keys and locale data as |
| 423 * well as client-provided options into consideration. Returns an object with |
| 424 * a locale property whose value is the language tag of the selected locale, |
| 425 * and properties for each key in relevantExtensionKeys providing the selected |
| 426 * value for that key. |
| 427 */ |
| 428 function resolveLocale(service, requestedLocales, options) { |
| 429 requestedLocales = initializeLocaleList(requestedLocales); |
| 430 |
| 431 var getOption = getGetOption(options, service); |
| 432 var matcher = getOption('localeMatcher', 'string', |
| 433 ['lookup', 'best fit'], 'best fit'); |
| 434 var resolved; |
| 435 if (matcher === 'lookup') { |
| 436 resolved = lookupMatcher(service, requestedLocales); |
| 437 } else { |
| 438 resolved = bestFitMatcher(service, requestedLocales); |
| 439 } |
| 440 |
| 441 return resolved; |
| 442 } |
| 443 |
| 444 |
| 445 /** |
| 446 * Returns best matched supported locale and extension info using basic |
| 447 * lookup algorithm. |
| 448 */ |
| 449 function lookupMatcher(service, requestedLocales) { |
| 450 if (service.match(GetServiceRE()) === null) { |
| 451 throw new $Error('Internal error, wrong service type: ' + service); |
| 452 } |
| 453 |
| 454 // Cache these, they don't ever change per service. |
| 455 if (AVAILABLE_LOCALES[service] === undefined) { |
| 456 AVAILABLE_LOCALES[service] = getAvailableLocalesOf(service); |
| 457 } |
| 458 |
| 459 for (var i = 0; i < requestedLocales.length; ++i) { |
| 460 // Remove all extensions. |
| 461 var locale = requestedLocales[i].replace(GetAnyExtensionRE(), ''); |
| 462 do { |
| 463 if (AVAILABLE_LOCALES[service][locale] !== undefined) { |
| 464 // Return the resolved locale and extension. |
| 465 var extensionMatch = requestedLocales[i].match(GetUnicodeExtensionRE()); |
| 466 var extension = (extensionMatch === null) ? '' : extensionMatch[0]; |
| 467 return {'locale': locale, 'extension': extension, 'position': i}; |
| 468 } |
| 469 // Truncate locale if possible. |
| 470 var pos = locale.lastIndexOf('-'); |
| 471 if (pos === -1) { |
| 472 break; |
| 473 } |
| 474 locale = locale.substring(0, pos); |
| 475 } while (true); |
| 476 } |
| 477 |
| 478 // Didn't find a match, return default. |
| 479 if (DEFAULT_ICU_LOCALE === undefined) { |
| 480 DEFAULT_ICU_LOCALE = %GetDefaultICULocale(); |
| 481 } |
| 482 |
| 483 return {'locale': DEFAULT_ICU_LOCALE, 'extension': '', 'position': -1}; |
| 484 } |
| 485 |
| 486 |
| 487 /** |
| 488 * Returns best matched supported locale and extension info using |
| 489 * implementation dependend algorithm. |
| 490 */ |
| 491 function bestFitMatcher(service, requestedLocales) { |
| 492 // TODO(cira): implement better best fit algorithm. |
| 493 return lookupMatcher(service, requestedLocales); |
| 494 } |
| 495 |
| 496 |
| 497 /** |
| 498 * Parses Unicode extension into key - value map. |
| 499 * Returns empty object if the extension string is invalid. |
| 500 * We are not concerned with the validity of the values at this point. |
| 501 */ |
| 502 function parseExtension(extension) { |
| 503 var extensionSplit = extension.split('-'); |
| 504 |
| 505 // Assume ['', 'u', ...] input, but don't throw. |
| 506 if (extensionSplit.length <= 2 || |
| 507 (extensionSplit[0] !== '' && extensionSplit[1] !== 'u')) { |
| 508 return {}; |
| 509 } |
| 510 |
| 511 // Key is {2}alphanum, value is {3,8}alphanum. |
| 512 // Some keys may not have explicit values (booleans). |
| 513 var extensionMap = {}; |
| 514 var previousKey = undefined; |
| 515 for (var i = 2; i < extensionSplit.length; ++i) { |
| 516 var length = extensionSplit[i].length; |
| 517 var element = extensionSplit[i]; |
| 518 if (length === 2) { |
| 519 extensionMap[element] = undefined; |
| 520 previousKey = element; |
| 521 } else if (length >= 3 && length <=8 && previousKey !== undefined) { |
| 522 extensionMap[previousKey] = element; |
| 523 previousKey = undefined; |
| 524 } else { |
| 525 // There is a value that's too long, or that doesn't have a key. |
| 526 return {}; |
| 527 } |
| 528 } |
| 529 |
| 530 return extensionMap; |
| 531 } |
| 532 |
| 533 |
| 534 /** |
| 535 * Converts parameter to an Object if possible. |
| 536 */ |
| 537 function toObject(value) { |
| 538 if (value === undefined || value === null) { |
| 539 throw new $TypeError('Value cannot be converted to an Object.'); |
| 540 } |
| 541 |
| 542 return $Object(value); |
| 543 } |
| 544 |
| 545 |
| 546 /** |
| 547 * Populates internalOptions object with boolean key-value pairs |
| 548 * from extensionMap and options. |
| 549 * Returns filtered extension (number and date format constructors use |
| 550 * Unicode extensions for passing parameters to ICU). |
| 551 * It's used for extension-option pairs only, e.g. kn-normalization, but not |
| 552 * for 'sensitivity' since it doesn't have extension equivalent. |
| 553 * Extensions like nu and ca don't have options equivalent, so we place |
| 554 * undefined in the map.property to denote that. |
| 555 */ |
| 556 function setOptions(inOptions, extensionMap, keyValues, getOption, outOptions) { |
| 557 var extension = ''; |
| 558 |
| 559 var updateExtension = function updateExtension(key, value) { |
| 560 return '-' + key + '-' + $String(value); |
| 561 } |
| 562 |
| 563 var updateProperty = function updateProperty(property, type, value) { |
| 564 if (type === 'boolean' && (typeof value === 'string')) { |
| 565 value = (value === 'true') ? true : false; |
| 566 } |
| 567 |
| 568 if (property !== undefined) { |
| 569 defineWEProperty(outOptions, property, value); |
| 570 } |
| 571 } |
| 572 |
| 573 for (var key in keyValues) { |
| 574 if (keyValues.hasOwnProperty(key)) { |
| 575 var value = undefined; |
| 576 var map = keyValues[key]; |
| 577 if (map.property !== undefined) { |
| 578 // This may return true if user specifies numeric: 'false', since |
| 579 // Boolean('nonempty') === true. |
| 580 value = getOption(map.property, map.type, map.values); |
| 581 } |
| 582 if (value !== undefined) { |
| 583 updateProperty(map.property, map.type, value); |
| 584 extension += updateExtension(key, value); |
| 585 continue; |
| 586 } |
| 587 // User options didn't have it, check Unicode extension. |
| 588 // Here we want to convert strings 'true', 'false' into proper Boolean |
| 589 // values (not a user error). |
| 590 if (extensionMap.hasOwnProperty(key)) { |
| 591 value = extensionMap[key]; |
| 592 if (value !== undefined) { |
| 593 updateProperty(map.property, map.type, value); |
| 594 extension += updateExtension(key, value); |
| 595 } else if (map.type === 'boolean') { |
| 596 // Boolean keys are allowed not to have values in Unicode extension. |
| 597 // Those default to true. |
| 598 updateProperty(map.property, map.type, true); |
| 599 extension += updateExtension(key, true); |
| 600 } |
| 601 } |
| 602 } |
| 603 } |
| 604 |
| 605 return extension === ''? '' : '-u' + extension; |
| 606 } |
| 607 |
| 608 |
| 609 /** |
| 610 * Converts all OwnProperties into |
| 611 * configurable: false, writable: false, enumerable: true. |
| 612 */ |
| 613 function freezeArray(array) { |
| 614 array.forEach(function(element, index) { |
| 615 $Object.defineProperty(array, index, {value: element, |
| 616 configurable: false, |
| 617 writable: false, |
| 618 enumerable: true}); |
| 619 }); |
| 620 |
| 621 $Object.defineProperty(array, 'length', {value: array.length, |
| 622 writable: false}); |
| 623 |
| 624 return array; |
| 625 } |
| 626 |
| 627 |
| 628 /** |
| 629 * It's sometimes desireable to leave user requested locale instead of ICU |
| 630 * supported one (zh-TW is equivalent to zh-Hant-TW, so we should keep shorter |
| 631 * one, if that was what user requested). |
| 632 * This function returns user specified tag if its maximized form matches ICU |
| 633 * resolved locale. If not we return ICU result. |
| 634 */ |
| 635 function getOptimalLanguageTag(original, resolved) { |
| 636 // Returns Array<Object>, where each object has maximized and base properties. |
| 637 // Maximized: zh -> zh-Hans-CN |
| 638 // Base: zh-CN-u-ca-gregory -> zh-CN |
| 639 // Take care of grandfathered or simple cases. |
| 640 if (original === resolved) { |
| 641 return original; |
| 642 } |
| 643 |
| 644 var locales = %GetLanguageTagVariants([original, resolved]); |
| 645 if (locales[0].maximized !== locales[1].maximized) { |
| 646 return resolved; |
| 647 } |
| 648 |
| 649 // Preserve extensions of resolved locale, but swap base tags with original. |
| 650 var resolvedBase = new $RegExp('^' + locales[1].base); |
| 651 return resolved.replace(resolvedBase, locales[0].base); |
| 652 } |
| 653 |
| 654 |
| 655 /** |
| 656 * Returns an Object that contains all of supported locales for a given |
| 657 * service. |
| 658 * In addition to the supported locales we add xx-ZZ locale for each xx-Yyyy-ZZ |
| 659 * that is supported. This is required by the spec. |
| 660 */ |
| 661 function getAvailableLocalesOf(service) { |
| 662 var available = %AvailableLocalesOf(service); |
| 663 |
| 664 for (var i in available) { |
| 665 if (available.hasOwnProperty(i)) { |
| 666 var parts = i.match(/^([a-z]{2,3})-([A-Z][a-z]{3})-([A-Z]{2})$/); |
| 667 if (parts !== null) { |
| 668 // Build xx-ZZ. We don't care about the actual value, |
| 669 // as long it's not undefined. |
| 670 available[parts[1] + '-' + parts[3]] = null; |
| 671 } |
| 672 } |
| 673 } |
| 674 |
| 675 return available; |
| 676 } |
| 677 |
| 678 |
| 679 /** |
| 680 * Defines a property and sets writable and enumerable to true. |
| 681 * Configurable is false by default. |
| 682 */ |
| 683 function defineWEProperty(object, property, value) { |
| 684 $Object.defineProperty(object, property, |
| 685 {value: value, writable: true, enumerable: true}); |
| 686 } |
| 687 |
| 688 |
| 689 /** |
| 690 * Adds property to an object if the value is not undefined. |
| 691 * Sets configurable descriptor to false. |
| 692 */ |
| 693 function addWEPropertyIfDefined(object, property, value) { |
| 694 if (value !== undefined) { |
| 695 defineWEProperty(object, property, value); |
| 696 } |
| 697 } |
| 698 |
| 699 |
| 700 /** |
| 701 * Defines a property and sets writable, enumerable and configurable to true. |
| 702 */ |
| 703 function defineWECProperty(object, property, value) { |
| 704 $Object.defineProperty(object, property, |
| 705 {value: value, |
| 706 writable: true, |
| 707 enumerable: true, |
| 708 configurable: true}); |
| 709 } |
| 710 |
| 711 |
| 712 /** |
| 713 * Adds property to an object if the value is not undefined. |
| 714 * Sets all descriptors to true. |
| 715 */ |
| 716 function addWECPropertyIfDefined(object, property, value) { |
| 717 if (value !== undefined) { |
| 718 defineWECProperty(object, property, value); |
| 719 } |
| 720 } |
| 721 |
| 722 |
| 723 /** |
| 724 * Returns titlecased word, aMeRricA -> America. |
| 725 */ |
| 726 function toTitleCaseWord(word) { |
| 727 return word.substr(0, 1).toUpperCase() + word.substr(1).toLowerCase(); |
| 728 } |
| 729 |
| 730 /** |
| 731 * Canonicalizes the language tag, or throws in case the tag is invalid. |
| 732 */ |
| 733 function canonicalizeLanguageTag(localeID) { |
| 734 // null is typeof 'object' so we have to do extra check. |
| 735 if (typeof localeID !== 'string' && typeof localeID !== 'object' || |
| 736 localeID === null) { |
| 737 throw new $TypeError('Language ID should be string or object.'); |
| 738 } |
| 739 |
| 740 var localeString = $String(localeID); |
| 741 |
| 742 if (isValidLanguageTag(localeString) === false) { |
| 743 throw new $RangeError('Invalid language tag: ' + localeString); |
| 744 } |
| 745 |
| 746 // This call will strip -kn but not -kn-true extensions. |
| 747 // ICU bug filled - http://bugs.icu-project.org/trac/ticket/9265. |
| 748 // TODO(cira): check if -u-kn-true-kc-true-kh-true still throws after |
| 749 // upgrade to ICU 4.9. |
| 750 var tag = %CanonicalizeLanguageTag(localeString); |
| 751 if (tag === 'invalid-tag') { |
| 752 throw new $RangeError('Invalid language tag: ' + localeString); |
| 753 } |
| 754 |
| 755 return tag; |
| 756 } |
| 757 |
| 758 |
| 759 /** |
| 760 * Returns an array where all locales are canonicalized and duplicates removed. |
| 761 * Throws on locales that are not well formed BCP47 tags. |
| 762 */ |
| 763 function initializeLocaleList(locales) { |
| 764 var seen = []; |
| 765 if (locales === undefined) { |
| 766 // Constructor is called without arguments. |
| 767 seen = []; |
| 768 } else { |
| 769 // We allow single string localeID. |
| 770 if (typeof locales === 'string') { |
| 771 seen.push(canonicalizeLanguageTag(locales)); |
| 772 return freezeArray(seen); |
| 773 } |
| 774 |
| 775 var o = toObject(locales); |
| 776 // Converts it to UInt32 (>>> is shr on 32bit integers). |
| 777 var len = o.length >>> 0; |
| 778 |
| 779 for (var k = 0; k < len; k++) { |
| 780 if (k in o) { |
| 781 var value = o[k]; |
| 782 |
| 783 var tag = canonicalizeLanguageTag(value); |
| 784 |
| 785 if (seen.indexOf(tag) === -1) { |
| 786 seen.push(tag); |
| 787 } |
| 788 } |
| 789 } |
| 790 } |
| 791 |
| 792 return freezeArray(seen); |
| 793 } |
| 794 |
| 795 |
| 796 /** |
| 797 * Validates the language tag. Section 2.2.9 of the bcp47 spec |
| 798 * defines a valid tag. |
| 799 * |
| 800 * ICU is too permissible and lets invalid tags, like |
| 801 * hant-cmn-cn, through. |
| 802 * |
| 803 * Returns false if the language tag is invalid. |
| 804 */ |
| 805 function isValidLanguageTag(locale) { |
| 806 // Check if it's well-formed, including grandfadered tags. |
| 807 if (GetLanguageTagRE().test(locale) === false) { |
| 808 return false; |
| 809 } |
| 810 |
| 811 // Just return if it's a x- form. It's all private. |
| 812 if (locale.indexOf('x-') === 0) { |
| 813 return true; |
| 814 } |
| 815 |
| 816 // Check if there are any duplicate variants or singletons (extensions). |
| 817 |
| 818 // Remove private use section. |
| 819 locale = locale.split(/-x-/)[0]; |
| 820 |
| 821 // Skip language since it can match variant regex, so we start from 1. |
| 822 // We are matching i-klingon here, but that's ok, since i-klingon-klingon |
| 823 // is not valid and would fail LANGUAGE_TAG_RE test. |
| 824 var variants = []; |
| 825 var extensions = []; |
| 826 var parts = locale.split(/-/); |
| 827 for (var i = 1; i < parts.length; i++) { |
| 828 var value = parts[i]; |
| 829 if (GetLanguageVariantRE().test(value) === true && extensions.length === 0)
{ |
| 830 if (variants.indexOf(value) === -1) { |
| 831 variants.push(value); |
| 832 } else { |
| 833 return false; |
| 834 } |
| 835 } |
| 836 |
| 837 if (GetLanguageSingletonRE().test(value) === true) { |
| 838 if (extensions.indexOf(value) === -1) { |
| 839 extensions.push(value); |
| 840 } else { |
| 841 return false; |
| 842 } |
| 843 } |
| 844 } |
| 845 |
| 846 return true; |
| 847 } |
| 848 |
| 849 |
| 850 /** |
| 851 * Builds a regular expresion that validates the language tag |
| 852 * against bcp47 spec. |
| 853 * Uses http://tools.ietf.org/html/bcp47, section 2.1, ABNF. |
| 854 * Runs on load and initializes the global REs. |
| 855 */ |
| 856 function BuildLanguageTagREs() { |
| 857 var alpha = '[a-zA-Z]'; |
| 858 var digit = '[0-9]'; |
| 859 var alphanum = '(' + alpha + '|' + digit + ')'; |
| 860 var regular = '(art-lojban|cel-gaulish|no-bok|no-nyn|zh-guoyu|zh-hakka|' + |
| 861 'zh-min|zh-min-nan|zh-xiang)'; |
| 862 var irregular = '(en-GB-oed|i-ami|i-bnn|i-default|i-enochian|i-hak|' + |
| 863 'i-klingon|i-lux|i-mingo|i-navajo|i-pwn|i-tao|i-tay|' + |
| 864 'i-tsu|sgn-BE-FR|sgn-BE-NL|sgn-CH-DE)'; |
| 865 var grandfathered = '(' + irregular + '|' + regular + ')'; |
| 866 var privateUse = '(x(-' + alphanum + '{1,8})+)'; |
| 867 |
| 868 var singleton = '(' + digit + '|[A-WY-Za-wy-z])'; |
| 869 LANGUAGE_SINGLETON_RE = new $RegExp('^' + singleton + '$', 'i'); |
| 870 |
| 871 var extension = '(' + singleton + '(-' + alphanum + '{2,8})+)'; |
| 872 |
| 873 var variant = '(' + alphanum + '{5,8}|(' + digit + alphanum + '{3}))'; |
| 874 LANGUAGE_VARIANT_RE = new $RegExp('^' + variant + '$', 'i'); |
| 875 |
| 876 var region = '(' + alpha + '{2}|' + digit + '{3})'; |
| 877 var script = '(' + alpha + '{4})'; |
| 878 var extLang = '(' + alpha + '{3}(-' + alpha + '{3}){0,2})'; |
| 879 var language = '(' + alpha + '{2,3}(-' + extLang + ')?|' + alpha + '{4}|' + |
| 880 alpha + '{5,8})'; |
| 881 var langTag = language + '(-' + script + ')?(-' + region + ')?(-' + |
| 882 variant + ')*(-' + extension + ')*(-' + privateUse + ')?'; |
| 883 |
| 884 var languageTag = |
| 885 '^(' + langTag + '|' + privateUse + '|' + grandfathered + ')$'; |
| 886 LANGUAGE_TAG_RE = new $RegExp(languageTag, 'i'); |
| 887 } |
| 888 |
| 889 /** |
| 890 * Initializes the given object so it's a valid Collator instance. |
| 891 * Useful for subclassing. |
| 892 */ |
| 893 function initializeCollator(collator, locales, options) { |
| 894 if (collator.hasOwnProperty('__initializedIntlObject')) { |
| 895 throw new $TypeError('Trying to re-initialize Collator object.'); |
| 896 } |
| 897 |
| 898 if (options === undefined) { |
| 899 options = {}; |
| 900 } |
| 901 |
| 902 var getOption = getGetOption(options, 'collator'); |
| 903 |
| 904 var internalOptions = {}; |
| 905 |
| 906 defineWEProperty(internalOptions, 'usage', getOption( |
| 907 'usage', 'string', ['sort', 'search'], 'sort')); |
| 908 |
| 909 var sensitivity = getOption('sensitivity', 'string', |
| 910 ['base', 'accent', 'case', 'variant']); |
| 911 if (sensitivity === undefined && internalOptions.usage === 'sort') { |
| 912 sensitivity = 'variant'; |
| 913 } |
| 914 defineWEProperty(internalOptions, 'sensitivity', sensitivity); |
| 915 |
| 916 defineWEProperty(internalOptions, 'ignorePunctuation', getOption( |
| 917 'ignorePunctuation', 'boolean', undefined, false)); |
| 918 |
| 919 var locale = resolveLocale('collator', locales, options); |
| 920 |
| 921 // ICU can't take kb, kc... parameters through localeID, so we need to pass |
| 922 // them as options. |
| 923 // One exception is -co- which has to be part of the extension, but only for |
| 924 // usage: sort, and its value can't be 'standard' or 'search'. |
| 925 var extensionMap = parseExtension(locale.extension); |
| 926 setOptions( |
| 927 options, extensionMap, COLLATOR_KEY_MAP, getOption, internalOptions); |
| 928 |
| 929 var collation = 'default'; |
| 930 var extension = ''; |
| 931 if (extensionMap.hasOwnProperty('co') && internalOptions.usage === 'sort') { |
| 932 if (ALLOWED_CO_VALUES.indexOf(extensionMap.co) !== -1) { |
| 933 extension = '-u-co-' + extensionMap.co; |
| 934 // ICU can't tell us what the collation is, so save user's input. |
| 935 collation = extensionMap.co; |
| 936 } |
| 937 } else if (internalOptions.usage === 'search') { |
| 938 extension = '-u-co-search'; |
| 939 } |
| 940 defineWEProperty(internalOptions, 'collation', collation); |
| 941 |
| 942 var requestedLocale = locale.locale + extension; |
| 943 |
| 944 // We define all properties C++ code may produce, to prevent security |
| 945 // problems. If malicious user decides to redefine Object.prototype.locale |
| 946 // we can't just use plain x.locale = 'us' or in C++ Set("locale", "us"). |
| 947 // Object.defineProperties will either succeed defining or throw an error. |
| 948 var resolved = $Object.defineProperties({}, { |
| 949 caseFirst: {writable: true}, |
| 950 collation: {value: internalOptions.collation, writable: true}, |
| 951 ignorePunctuation: {writable: true}, |
| 952 locale: {writable: true}, |
| 953 numeric: {writable: true}, |
| 954 requestedLocale: {value: requestedLocale, writable: true}, |
| 955 sensitivity: {writable: true}, |
| 956 strength: {writable: true}, |
| 957 usage: {value: internalOptions.usage, writable: true} |
| 958 }); |
| 959 |
| 960 var internalCollator = %CreateCollator(requestedLocale, |
| 961 internalOptions, |
| 962 resolved); |
| 963 |
| 964 // Writable, configurable and enumerable are set to false by default. |
| 965 $Object.defineProperty(collator, 'collator', {value: internalCollator}); |
| 966 $Object.defineProperty(collator, '__initializedIntlObject', |
| 967 {value: 'collator'}); |
| 968 $Object.defineProperty(collator, 'resolved', {value: resolved}); |
| 969 |
| 970 return collator; |
| 971 } |
| 972 |
| 973 |
| 974 /** |
| 975 * Constructs Intl.Collator object given optional locales and options |
| 976 * parameters. |
| 977 * |
| 978 * @constructor |
| 979 */ |
| 980 %SetProperty(Intl, 'Collator', function() { |
| 981 var locales = arguments[0]; |
| 982 var options = arguments[1]; |
| 983 |
| 984 if (!this || this === Intl) { |
| 985 // Constructor is called as a function. |
| 986 return new Intl.Collator(locales, options); |
| 987 } |
| 988 |
| 989 return initializeCollator(toObject(this), locales, options); |
| 990 }, |
| 991 DONT_ENUM |
| 992 ); |
| 993 |
| 994 |
| 995 /** |
| 996 * Collator resolvedOptions method. |
| 997 */ |
| 998 %SetProperty(Intl.Collator.prototype, 'resolvedOptions', function() { |
| 999 if (%_IsConstructCall()) { |
| 1000 throw new $TypeError(ORDINARY_FUNCTION_CALLED_AS_CONSTRUCTOR); |
| 1001 } |
| 1002 |
| 1003 if (!this || typeof this !== 'object' || |
| 1004 this.__initializedIntlObject !== 'collator') { |
| 1005 throw new $TypeError('resolvedOptions method called on a non-object ' + |
| 1006 'or on a object that is not Intl.Collator.'); |
| 1007 } |
| 1008 |
| 1009 var coll = this; |
| 1010 var locale = getOptimalLanguageTag(coll.resolved.requestedLocale, |
| 1011 coll.resolved.locale); |
| 1012 |
| 1013 return { |
| 1014 locale: locale, |
| 1015 usage: coll.resolved.usage, |
| 1016 sensitivity: coll.resolved.sensitivity, |
| 1017 ignorePunctuation: coll.resolved.ignorePunctuation, |
| 1018 numeric: coll.resolved.numeric, |
| 1019 caseFirst: coll.resolved.caseFirst, |
| 1020 collation: coll.resolved.collation |
| 1021 }; |
| 1022 }, |
| 1023 DONT_ENUM |
| 1024 ); |
| 1025 %FunctionSetName(Intl.Collator.prototype.resolvedOptions, 'resolvedOptions'); |
| 1026 %FunctionRemovePrototype(Intl.Collator.prototype.resolvedOptions); |
| 1027 %SetNativeFlag(Intl.Collator.prototype.resolvedOptions); |
| 1028 |
| 1029 |
| 1030 /** |
| 1031 * Returns the subset of the given locale list for which this locale list |
| 1032 * has a matching (possibly fallback) locale. Locales appear in the same |
| 1033 * order in the returned list as in the input list. |
| 1034 * Options are optional parameter. |
| 1035 */ |
| 1036 %SetProperty(Intl.Collator, 'supportedLocalesOf', function(locales) { |
| 1037 if (%_IsConstructCall()) { |
| 1038 throw new $TypeError(ORDINARY_FUNCTION_CALLED_AS_CONSTRUCTOR); |
| 1039 } |
| 1040 |
| 1041 return supportedLocalesOf('collator', locales, arguments[1]); |
| 1042 }, |
| 1043 DONT_ENUM |
| 1044 ); |
| 1045 %FunctionSetName(Intl.Collator.supportedLocalesOf, 'supportedLocalesOf'); |
| 1046 %FunctionRemovePrototype(Intl.Collator.supportedLocalesOf); |
| 1047 %SetNativeFlag(Intl.Collator.supportedLocalesOf); |
| 1048 |
| 1049 |
| 1050 /** |
| 1051 * When the compare method is called with two arguments x and y, it returns a |
| 1052 * Number other than NaN that represents the result of a locale-sensitive |
| 1053 * String comparison of x with y. |
| 1054 * The result is intended to order String values in the sort order specified |
| 1055 * by the effective locale and collation options computed during construction |
| 1056 * of this Collator object, and will be negative, zero, or positive, depending |
| 1057 * on whether x comes before y in the sort order, the Strings are equal under |
| 1058 * the sort order, or x comes after y in the sort order, respectively. |
| 1059 */ |
| 1060 function compare(collator, x, y) { |
| 1061 return %InternalCompare(collator.collator, $String(x), $String(y)); |
| 1062 }; |
| 1063 |
| 1064 |
| 1065 addBoundMethod(Intl.Collator, 'compare', compare, 2); |
| 1066 |
| 1067 /** |
| 1068 * Verifies that the input is a well-formed ISO 4217 currency code. |
| 1069 * Don't uppercase to test. It could convert invalid code into a valid one. |
| 1070 * For example \u00DFP (Eszett+P) becomes SSP. |
| 1071 */ |
| 1072 function isWellFormedCurrencyCode(currency) { |
| 1073 return typeof currency == "string" && |
| 1074 currency.length == 3 && |
| 1075 currency.match(/[^A-Za-z]/) == null; |
| 1076 } |
| 1077 |
| 1078 |
| 1079 /** |
| 1080 * Returns the valid digit count for a property, or throws RangeError on |
| 1081 * a value out of the range. |
| 1082 */ |
| 1083 function getNumberOption(options, property, min, max, fallback) { |
| 1084 var value = options[property]; |
| 1085 if (value !== undefined) { |
| 1086 value = $Number(value); |
| 1087 if ($isNaN(value) || value < min || value > max) { |
| 1088 throw new $RangeError(property + ' value is out of range.'); |
| 1089 } |
| 1090 return $floor(value); |
| 1091 } |
| 1092 |
| 1093 return fallback; |
| 1094 } |
| 1095 |
| 1096 |
| 1097 /** |
| 1098 * Initializes the given object so it's a valid NumberFormat instance. |
| 1099 * Useful for subclassing. |
| 1100 */ |
| 1101 function initializeNumberFormat(numberFormat, locales, options) { |
| 1102 if (numberFormat.hasOwnProperty('__initializedIntlObject')) { |
| 1103 throw new $TypeError('Trying to re-initialize NumberFormat object.'); |
| 1104 } |
| 1105 |
| 1106 if (options === undefined) { |
| 1107 options = {}; |
| 1108 } |
| 1109 |
| 1110 var getOption = getGetOption(options, 'numberformat'); |
| 1111 |
| 1112 var locale = resolveLocale('numberformat', locales, options); |
| 1113 |
| 1114 var internalOptions = {}; |
| 1115 defineWEProperty(internalOptions, 'style', getOption( |
| 1116 'style', 'string', ['decimal', 'percent', 'currency'], 'decimal')); |
| 1117 |
| 1118 var currency = getOption('currency', 'string'); |
| 1119 if (currency !== undefined && !isWellFormedCurrencyCode(currency)) { |
| 1120 throw new $RangeError('Invalid currency code: ' + currency); |
| 1121 } |
| 1122 |
| 1123 if (internalOptions.style === 'currency' && currency === undefined) { |
| 1124 throw new $TypeError('Currency code is required with currency style.'); |
| 1125 } |
| 1126 |
| 1127 var currencyDisplay = getOption( |
| 1128 'currencyDisplay', 'string', ['code', 'symbol', 'name'], 'symbol'); |
| 1129 if (internalOptions.style === 'currency') { |
| 1130 defineWEProperty(internalOptions, 'currency', currency.toUpperCase()); |
| 1131 defineWEProperty(internalOptions, 'currencyDisplay', currencyDisplay); |
| 1132 } |
| 1133 |
| 1134 // Digit ranges. |
| 1135 var mnid = getNumberOption(options, 'minimumIntegerDigits', 1, 21, 1); |
| 1136 defineWEProperty(internalOptions, 'minimumIntegerDigits', mnid); |
| 1137 |
| 1138 var mnfd = getNumberOption(options, 'minimumFractionDigits', 0, 20, 0); |
| 1139 defineWEProperty(internalOptions, 'minimumFractionDigits', mnfd); |
| 1140 |
| 1141 var mxfd = getNumberOption(options, 'maximumFractionDigits', mnfd, 20, 3); |
| 1142 defineWEProperty(internalOptions, 'maximumFractionDigits', mxfd); |
| 1143 |
| 1144 var mnsd = options['minimumSignificantDigits']; |
| 1145 var mxsd = options['maximumSignificantDigits']; |
| 1146 if (mnsd !== undefined || mxsd !== undefined) { |
| 1147 mnsd = getNumberOption(options, 'minimumSignificantDigits', 1, 21, 0); |
| 1148 defineWEProperty(internalOptions, 'minimumSignificantDigits', mnsd); |
| 1149 |
| 1150 mxsd = getNumberOption(options, 'maximumSignificantDigits', mnsd, 21, 21); |
| 1151 defineWEProperty(internalOptions, 'maximumSignificantDigits', mxsd); |
| 1152 } |
| 1153 |
| 1154 // Grouping. |
| 1155 defineWEProperty(internalOptions, 'useGrouping', getOption( |
| 1156 'useGrouping', 'boolean', undefined, true)); |
| 1157 |
| 1158 // ICU prefers options to be passed using -u- extension key/values for |
| 1159 // number format, so we need to build that. |
| 1160 var extensionMap = parseExtension(locale.extension); |
| 1161 var extension = setOptions(options, extensionMap, NUMBER_FORMAT_KEY_MAP, |
| 1162 getOption, internalOptions); |
| 1163 |
| 1164 var requestedLocale = locale.locale + extension; |
| 1165 var resolved = $Object.defineProperties({}, { |
| 1166 currency: {writable: true}, |
| 1167 currencyDisplay: {writable: true}, |
| 1168 locale: {writable: true}, |
| 1169 maximumFractionDigits: {writable: true}, |
| 1170 minimumFractionDigits: {writable: true}, |
| 1171 minimumIntegerDigits: {writable: true}, |
| 1172 numberingSystem: {writable: true}, |
| 1173 requestedLocale: {value: requestedLocale, writable: true}, |
| 1174 style: {value: internalOptions.style, writable: true}, |
| 1175 useGrouping: {writable: true} |
| 1176 }); |
| 1177 if (internalOptions.hasOwnProperty('minimumSignificantDigits')) { |
| 1178 defineWEProperty(resolved, 'minimumSignificantDigits', undefined); |
| 1179 } |
| 1180 if (internalOptions.hasOwnProperty('maximumSignificantDigits')) { |
| 1181 defineWEProperty(resolved, 'maximumSignificantDigits', undefined); |
| 1182 } |
| 1183 var formatter = %CreateNumberFormat(requestedLocale, |
| 1184 internalOptions, |
| 1185 resolved); |
| 1186 |
| 1187 // We can't get information about number or currency style from ICU, so we |
| 1188 // assume user request was fulfilled. |
| 1189 if (internalOptions.style === 'currency') { |
| 1190 $Object.defineProperty(resolved, 'currencyDisplay', {value: currencyDisplay, |
| 1191 writable: true}); |
| 1192 } |
| 1193 |
| 1194 $Object.defineProperty(numberFormat, 'formatter', {value: formatter}); |
| 1195 $Object.defineProperty(numberFormat, 'resolved', {value: resolved}); |
| 1196 $Object.defineProperty(numberFormat, '__initializedIntlObject', |
| 1197 {value: 'numberformat'}); |
| 1198 |
| 1199 return numberFormat; |
| 1200 } |
| 1201 |
| 1202 |
| 1203 /** |
| 1204 * Constructs Intl.NumberFormat object given optional locales and options |
| 1205 * parameters. |
| 1206 * |
| 1207 * @constructor |
| 1208 */ |
| 1209 %SetProperty(Intl, 'NumberFormat', function() { |
| 1210 var locales = arguments[0]; |
| 1211 var options = arguments[1]; |
| 1212 |
| 1213 if (!this || this === Intl) { |
| 1214 // Constructor is called as a function. |
| 1215 return new Intl.NumberFormat(locales, options); |
| 1216 } |
| 1217 |
| 1218 return initializeNumberFormat(toObject(this), locales, options); |
| 1219 }, |
| 1220 DONT_ENUM |
| 1221 ); |
| 1222 |
| 1223 |
| 1224 /** |
| 1225 * NumberFormat resolvedOptions method. |
| 1226 */ |
| 1227 %SetProperty(Intl.NumberFormat.prototype, 'resolvedOptions', function() { |
| 1228 if (%_IsConstructCall()) { |
| 1229 throw new $TypeError(ORDINARY_FUNCTION_CALLED_AS_CONSTRUCTOR); |
| 1230 } |
| 1231 |
| 1232 if (!this || typeof this !== 'object' || |
| 1233 this.__initializedIntlObject !== 'numberformat') { |
| 1234 throw new $TypeError('resolvedOptions method called on a non-object' + |
| 1235 ' or on a object that is not Intl.NumberFormat.'); |
| 1236 } |
| 1237 |
| 1238 var format = this; |
| 1239 var locale = getOptimalLanguageTag(format.resolved.requestedLocale, |
| 1240 format.resolved.locale); |
| 1241 |
| 1242 var result = { |
| 1243 locale: locale, |
| 1244 numberingSystem: format.resolved.numberingSystem, |
| 1245 style: format.resolved.style, |
| 1246 useGrouping: format.resolved.useGrouping, |
| 1247 minimumIntegerDigits: format.resolved.minimumIntegerDigits, |
| 1248 minimumFractionDigits: format.resolved.minimumFractionDigits, |
| 1249 maximumFractionDigits: format.resolved.maximumFractionDigits, |
| 1250 }; |
| 1251 |
| 1252 if (result.style === 'currency') { |
| 1253 defineWECProperty(result, 'currency', format.resolved.currency); |
| 1254 defineWECProperty(result, 'currencyDisplay', |
| 1255 format.resolved.currencyDisplay); |
| 1256 } |
| 1257 |
| 1258 if (format.resolved.hasOwnProperty('minimumSignificantDigits')) { |
| 1259 defineWECProperty(result, 'minimumSignificantDigits', |
| 1260 format.resolved.minimumSignificantDigits); |
| 1261 } |
| 1262 |
| 1263 if (format.resolved.hasOwnProperty('maximumSignificantDigits')) { |
| 1264 defineWECProperty(result, 'maximumSignificantDigits', |
| 1265 format.resolved.maximumSignificantDigits); |
| 1266 } |
| 1267 |
| 1268 return result; |
| 1269 }, |
| 1270 DONT_ENUM |
| 1271 ); |
| 1272 %FunctionSetName(Intl.NumberFormat.prototype.resolvedOptions, |
| 1273 'resolvedOptions'); |
| 1274 %FunctionRemovePrototype(Intl.NumberFormat.prototype.resolvedOptions); |
| 1275 %SetNativeFlag(Intl.NumberFormat.prototype.resolvedOptions); |
| 1276 |
| 1277 |
| 1278 /** |
| 1279 * Returns the subset of the given locale list for which this locale list |
| 1280 * has a matching (possibly fallback) locale. Locales appear in the same |
| 1281 * order in the returned list as in the input list. |
| 1282 * Options are optional parameter. |
| 1283 */ |
| 1284 %SetProperty(Intl.NumberFormat, 'supportedLocalesOf', function(locales) { |
| 1285 if (%_IsConstructCall()) { |
| 1286 throw new $TypeError(ORDINARY_FUNCTION_CALLED_AS_CONSTRUCTOR); |
| 1287 } |
| 1288 |
| 1289 return supportedLocalesOf('numberformat', locales, arguments[1]); |
| 1290 }, |
| 1291 DONT_ENUM |
| 1292 ); |
| 1293 %FunctionSetName(Intl.NumberFormat.supportedLocalesOf, 'supportedLocalesOf'); |
| 1294 %FunctionRemovePrototype(Intl.NumberFormat.supportedLocalesOf); |
| 1295 %SetNativeFlag(Intl.NumberFormat.supportedLocalesOf); |
| 1296 |
| 1297 |
| 1298 /** |
| 1299 * Returns a String value representing the result of calling ToNumber(value) |
| 1300 * according to the effective locale and the formatting options of this |
| 1301 * NumberFormat. |
| 1302 */ |
| 1303 function formatNumber(formatter, value) { |
| 1304 // Spec treats -0 and +0 as 0. |
| 1305 var number = $Number(value); |
| 1306 if (number === -0) { |
| 1307 number = 0; |
| 1308 } |
| 1309 |
| 1310 return %InternalNumberFormat(formatter.formatter, number); |
| 1311 } |
| 1312 |
| 1313 |
| 1314 /** |
| 1315 * Returns a Number that represents string value that was passed in. |
| 1316 */ |
| 1317 function parseNumber(formatter, value) { |
| 1318 return %InternalNumberParse(formatter.formatter, $String(value)); |
| 1319 } |
| 1320 |
| 1321 |
| 1322 addBoundMethod(Intl.NumberFormat, 'format', formatNumber, 1); |
| 1323 addBoundMethod(Intl.NumberFormat, 'v8Parse', parseNumber, 1); |
| 1324 |
| 1325 /** |
| 1326 * Returns a string that matches LDML representation of the options object. |
| 1327 */ |
| 1328 function toLDMLString(options) { |
| 1329 var getOption = getGetOption(options, 'dateformat'); |
| 1330 |
| 1331 var ldmlString = ''; |
| 1332 |
| 1333 var option = getOption('weekday', 'string', ['narrow', 'short', 'long']); |
| 1334 ldmlString += appendToLDMLString( |
| 1335 option, {narrow: 'EEEEE', short: 'EEE', long: 'EEEE'}); |
| 1336 |
| 1337 option = getOption('era', 'string', ['narrow', 'short', 'long']); |
| 1338 ldmlString += appendToLDMLString( |
| 1339 option, {narrow: 'GGGGG', short: 'GGG', long: 'GGGG'}); |
| 1340 |
| 1341 option = getOption('year', 'string', ['2-digit', 'numeric']); |
| 1342 ldmlString += appendToLDMLString(option, {'2-digit': 'yy', 'numeric': 'y'}); |
| 1343 |
| 1344 option = getOption('month', 'string', |
| 1345 ['2-digit', 'numeric', 'narrow', 'short', 'long']); |
| 1346 ldmlString += appendToLDMLString(option, {'2-digit': 'MM', 'numeric': 'M', |
| 1347 'narrow': 'MMMMM', 'short': 'MMM', 'long': 'MMMM'}); |
| 1348 |
| 1349 option = getOption('day', 'string', ['2-digit', 'numeric']); |
| 1350 ldmlString += appendToLDMLString( |
| 1351 option, {'2-digit': 'dd', 'numeric': 'd'}); |
| 1352 |
| 1353 var hr12 = getOption('hour12', 'boolean'); |
| 1354 option = getOption('hour', 'string', ['2-digit', 'numeric']); |
| 1355 if (hr12 === undefined) { |
| 1356 ldmlString += appendToLDMLString(option, {'2-digit': 'jj', 'numeric': 'j'}); |
| 1357 } else if (hr12 === true) { |
| 1358 ldmlString += appendToLDMLString(option, {'2-digit': 'hh', 'numeric': 'h'}); |
| 1359 } else { |
| 1360 ldmlString += appendToLDMLString(option, {'2-digit': 'HH', 'numeric': 'H'}); |
| 1361 } |
| 1362 |
| 1363 option = getOption('minute', 'string', ['2-digit', 'numeric']); |
| 1364 ldmlString += appendToLDMLString(option, {'2-digit': 'mm', 'numeric': 'm'}); |
| 1365 |
| 1366 option = getOption('second', 'string', ['2-digit', 'numeric']); |
| 1367 ldmlString += appendToLDMLString(option, {'2-digit': 'ss', 'numeric': 's'}); |
| 1368 |
| 1369 option = getOption('timeZoneName', 'string', ['short', 'long']); |
| 1370 ldmlString += appendToLDMLString(option, {short: 'v', long: 'vv'}); |
| 1371 |
| 1372 return ldmlString; |
| 1373 } |
| 1374 |
| 1375 |
| 1376 /** |
| 1377 * Returns either LDML equivalent of the current option or empty string. |
| 1378 */ |
| 1379 function appendToLDMLString(option, pairs) { |
| 1380 if (option !== undefined) { |
| 1381 return pairs[option]; |
| 1382 } else { |
| 1383 return ''; |
| 1384 } |
| 1385 } |
| 1386 |
| 1387 |
| 1388 /** |
| 1389 * Returns object that matches LDML representation of the date. |
| 1390 */ |
| 1391 function fromLDMLString(ldmlString) { |
| 1392 // First remove '' quoted text, so we lose 'Uhr' strings. |
| 1393 ldmlString = ldmlString.replace(GetQuotedStringRE(), ''); |
| 1394 |
| 1395 var options = {}; |
| 1396 var match = ldmlString.match(/E{3,5}/g); |
| 1397 options = appendToDateTimeObject( |
| 1398 options, 'weekday', match, {EEEEE: 'narrow', EEE: 'short', EEEE: 'long'}); |
| 1399 |
| 1400 match = ldmlString.match(/G{3,5}/g); |
| 1401 options = appendToDateTimeObject( |
| 1402 options, 'era', match, {GGGGG: 'narrow', GGG: 'short', GGGG: 'long'}); |
| 1403 |
| 1404 match = ldmlString.match(/y{1,2}/g); |
| 1405 options = appendToDateTimeObject( |
| 1406 options, 'year', match, {y: 'numeric', yy: '2-digit'}); |
| 1407 |
| 1408 match = ldmlString.match(/M{1,5}/g); |
| 1409 options = appendToDateTimeObject(options, 'month', match, {MM: '2-digit', |
| 1410 M: 'numeric', MMMMM: 'narrow', MMM: 'short', MMMM: 'long'}); |
| 1411 |
| 1412 // Sometimes we get L instead of M for month - standalone name. |
| 1413 match = ldmlString.match(/L{1,5}/g); |
| 1414 options = appendToDateTimeObject(options, 'month', match, {LL: '2-digit', |
| 1415 L: 'numeric', LLLLL: 'narrow', LLL: 'short', LLLL: 'long'}); |
| 1416 |
| 1417 match = ldmlString.match(/d{1,2}/g); |
| 1418 options = appendToDateTimeObject( |
| 1419 options, 'day', match, {d: 'numeric', dd: '2-digit'}); |
| 1420 |
| 1421 match = ldmlString.match(/h{1,2}/g); |
| 1422 if (match !== null) { |
| 1423 options['hour12'] = true; |
| 1424 } |
| 1425 options = appendToDateTimeObject( |
| 1426 options, 'hour', match, {h: 'numeric', hh: '2-digit'}); |
| 1427 |
| 1428 match = ldmlString.match(/H{1,2}/g); |
| 1429 if (match !== null) { |
| 1430 options['hour12'] = false; |
| 1431 } |
| 1432 options = appendToDateTimeObject( |
| 1433 options, 'hour', match, {H: 'numeric', HH: '2-digit'}); |
| 1434 |
| 1435 match = ldmlString.match(/m{1,2}/g); |
| 1436 options = appendToDateTimeObject( |
| 1437 options, 'minute', match, {m: 'numeric', mm: '2-digit'}); |
| 1438 |
| 1439 match = ldmlString.match(/s{1,2}/g); |
| 1440 options = appendToDateTimeObject( |
| 1441 options, 'second', match, {s: 'numeric', ss: '2-digit'}); |
| 1442 |
| 1443 match = ldmlString.match(/v{1,2}/g); |
| 1444 options = appendToDateTimeObject( |
| 1445 options, 'timeZoneName', match, {v: 'short', vv: 'long'}); |
| 1446 |
| 1447 return options; |
| 1448 } |
| 1449 |
| 1450 |
| 1451 function appendToDateTimeObject(options, option, match, pairs) { |
| 1452 if (match === null) { |
| 1453 if (!options.hasOwnProperty(option)) { |
| 1454 defineWEProperty(options, option, undefined); |
| 1455 } |
| 1456 return options; |
| 1457 } |
| 1458 |
| 1459 var property = match[0]; |
| 1460 defineWEProperty(options, option, pairs[property]); |
| 1461 |
| 1462 return options; |
| 1463 } |
| 1464 |
| 1465 |
| 1466 /** |
| 1467 * Returns options with at least default values in it. |
| 1468 */ |
| 1469 function toDateTimeOptions(options, required, defaults) { |
| 1470 if (options === undefined) { |
| 1471 options = null; |
| 1472 } else { |
| 1473 options = toObject(options); |
| 1474 } |
| 1475 |
| 1476 options = $Object.apply(this, [options]); |
| 1477 |
| 1478 var needsDefault = true; |
| 1479 if ((required === 'date' || required === 'any') && |
| 1480 (options.weekday !== undefined || options.year !== undefined || |
| 1481 options.month !== undefined || options.day !== undefined)) { |
| 1482 needsDefault = false; |
| 1483 } |
| 1484 |
| 1485 if ((required === 'time' || required === 'any') && |
| 1486 (options.hour !== undefined || options.minute !== undefined || |
| 1487 options.second !== undefined)) { |
| 1488 needsDefault = false; |
| 1489 } |
| 1490 |
| 1491 if (needsDefault && (defaults === 'date' || defaults === 'all')) { |
| 1492 $Object.defineProperty(options, 'year', {value: 'numeric', |
| 1493 writable: true, |
| 1494 enumerable: true, |
| 1495 configurable: true}); |
| 1496 $Object.defineProperty(options, 'month', {value: 'numeric', |
| 1497 writable: true, |
| 1498 enumerable: true, |
| 1499 configurable: true}); |
| 1500 $Object.defineProperty(options, 'day', {value: 'numeric', |
| 1501 writable: true, |
| 1502 enumerable: true, |
| 1503 configurable: true}); |
| 1504 } |
| 1505 |
| 1506 if (needsDefault && (defaults === 'time' || defaults === 'all')) { |
| 1507 $Object.defineProperty(options, 'hour', {value: 'numeric', |
| 1508 writable: true, |
| 1509 enumerable: true, |
| 1510 configurable: true}); |
| 1511 $Object.defineProperty(options, 'minute', {value: 'numeric', |
| 1512 writable: true, |
| 1513 enumerable: true, |
| 1514 configurable: true}); |
| 1515 $Object.defineProperty(options, 'second', {value: 'numeric', |
| 1516 writable: true, |
| 1517 enumerable: true, |
| 1518 configurable: true}); |
| 1519 } |
| 1520 |
| 1521 return options; |
| 1522 } |
| 1523 |
| 1524 |
| 1525 /** |
| 1526 * Initializes the given object so it's a valid DateTimeFormat instance. |
| 1527 * Useful for subclassing. |
| 1528 */ |
| 1529 function initializeDateTimeFormat(dateFormat, locales, options) { |
| 1530 |
| 1531 if (dateFormat.hasOwnProperty('__initializedIntlObject')) { |
| 1532 throw new $TypeError('Trying to re-initialize DateTimeFormat object.'); |
| 1533 } |
| 1534 |
| 1535 if (options === undefined) { |
| 1536 options = {}; |
| 1537 } |
| 1538 |
| 1539 var locale = resolveLocale('dateformat', locales, options); |
| 1540 |
| 1541 options = toDateTimeOptions(options, 'any', 'date'); |
| 1542 |
| 1543 var getOption = getGetOption(options, 'dateformat'); |
| 1544 |
| 1545 // We implement only best fit algorithm, but still need to check |
| 1546 // if the formatMatcher values are in range. |
| 1547 var matcher = getOption('formatMatcher', 'string', |
| 1548 ['basic', 'best fit'], 'best fit'); |
| 1549 |
| 1550 // Build LDML string for the skeleton that we pass to the formatter. |
| 1551 var ldmlString = toLDMLString(options); |
| 1552 |
| 1553 // Filter out supported extension keys so we know what to put in resolved |
| 1554 // section later on. |
| 1555 // We need to pass calendar and number system to the method. |
| 1556 var tz = canonicalizeTimeZoneID(options.timeZone); |
| 1557 |
| 1558 // ICU prefers options to be passed using -u- extension key/values, so |
| 1559 // we need to build that. |
| 1560 var internalOptions = {}; |
| 1561 var extensionMap = parseExtension(locale.extension); |
| 1562 var extension = setOptions(options, extensionMap, DATETIME_FORMAT_KEY_MAP, |
| 1563 getOption, internalOptions); |
| 1564 |
| 1565 var requestedLocale = locale.locale + extension; |
| 1566 var resolved = $Object.defineProperties({}, { |
| 1567 calendar: {writable: true}, |
| 1568 day: {writable: true}, |
| 1569 era: {writable: true}, |
| 1570 hour12: {writable: true}, |
| 1571 hour: {writable: true}, |
| 1572 locale: {writable: true}, |
| 1573 minute: {writable: true}, |
| 1574 month: {writable: true}, |
| 1575 numberingSystem: {writable: true}, |
| 1576 pattern: {writable: true}, |
| 1577 requestedLocale: {value: requestedLocale, writable: true}, |
| 1578 second: {writable: true}, |
| 1579 timeZone: {writable: true}, |
| 1580 timeZoneName: {writable: true}, |
| 1581 tz: {value: tz, writable: true}, |
| 1582 weekday: {writable: true}, |
| 1583 year: {writable: true} |
| 1584 }); |
| 1585 |
| 1586 var formatter = %CreateDateTimeFormat( |
| 1587 requestedLocale, {skeleton: ldmlString, timeZone: tz}, resolved); |
| 1588 |
| 1589 if (tz !== undefined && tz !== resolved.timeZone) { |
| 1590 throw new $RangeError('Unsupported time zone specified ' + tz); |
| 1591 } |
| 1592 |
| 1593 $Object.defineProperty(dateFormat, 'formatter', {value: formatter}); |
| 1594 $Object.defineProperty(dateFormat, 'resolved', {value: resolved}); |
| 1595 $Object.defineProperty(dateFormat, '__initializedIntlObject', |
| 1596 {value: 'dateformat'}); |
| 1597 |
| 1598 return dateFormat; |
| 1599 } |
| 1600 |
| 1601 |
| 1602 /** |
| 1603 * Constructs Intl.DateTimeFormat object given optional locales and options |
| 1604 * parameters. |
| 1605 * |
| 1606 * @constructor |
| 1607 */ |
| 1608 %SetProperty(Intl, 'DateTimeFormat', function() { |
| 1609 var locales = arguments[0]; |
| 1610 var options = arguments[1]; |
| 1611 |
| 1612 if (!this || this === Intl) { |
| 1613 // Constructor is called as a function. |
| 1614 return new Intl.DateTimeFormat(locales, options); |
| 1615 } |
| 1616 |
| 1617 return initializeDateTimeFormat(toObject(this), locales, options); |
| 1618 }, |
| 1619 DONT_ENUM |
| 1620 ); |
| 1621 |
| 1622 |
| 1623 /** |
| 1624 * DateTimeFormat resolvedOptions method. |
| 1625 */ |
| 1626 %SetProperty(Intl.DateTimeFormat.prototype, 'resolvedOptions', function() { |
| 1627 if (%_IsConstructCall()) { |
| 1628 throw new $TypeError(ORDINARY_FUNCTION_CALLED_AS_CONSTRUCTOR); |
| 1629 } |
| 1630 |
| 1631 if (!this || typeof this !== 'object' || |
| 1632 this.__initializedIntlObject !== 'dateformat') { |
| 1633 throw new $TypeError('resolvedOptions method called on a non-object or ' + |
| 1634 'on a object that is not Intl.DateTimeFormat.'); |
| 1635 } |
| 1636 |
| 1637 var format = this; |
| 1638 var fromPattern = fromLDMLString(format.resolved.pattern); |
| 1639 var userCalendar = ICU_CALENDAR_MAP[format.resolved.calendar]; |
| 1640 if (userCalendar === undefined) { |
| 1641 // Use ICU name if we don't have a match. It shouldn't happen, but |
| 1642 // it would be too strict to throw for this. |
| 1643 userCalendar = format.resolved.calendar; |
| 1644 } |
| 1645 |
| 1646 var locale = getOptimalLanguageTag(format.resolved.requestedLocale, |
| 1647 format.resolved.locale); |
| 1648 |
| 1649 var result = { |
| 1650 locale: locale, |
| 1651 numberingSystem: format.resolved.numberingSystem, |
| 1652 calendar: userCalendar, |
| 1653 timeZone: format.resolved.timeZone |
| 1654 }; |
| 1655 |
| 1656 addWECPropertyIfDefined(result, 'timeZoneName', fromPattern.timeZoneName); |
| 1657 addWECPropertyIfDefined(result, 'era', fromPattern.era); |
| 1658 addWECPropertyIfDefined(result, 'year', fromPattern.year); |
| 1659 addWECPropertyIfDefined(result, 'month', fromPattern.month); |
| 1660 addWECPropertyIfDefined(result, 'day', fromPattern.day); |
| 1661 addWECPropertyIfDefined(result, 'weekday', fromPattern.weekday); |
| 1662 addWECPropertyIfDefined(result, 'hour12', fromPattern.hour12); |
| 1663 addWECPropertyIfDefined(result, 'hour', fromPattern.hour); |
| 1664 addWECPropertyIfDefined(result, 'minute', fromPattern.minute); |
| 1665 addWECPropertyIfDefined(result, 'second', fromPattern.second); |
| 1666 |
| 1667 return result; |
| 1668 }, |
| 1669 DONT_ENUM |
| 1670 ); |
| 1671 %FunctionSetName(Intl.DateTimeFormat.prototype.resolvedOptions, |
| 1672 'resolvedOptions'); |
| 1673 %FunctionRemovePrototype(Intl.DateTimeFormat.prototype.resolvedOptions); |
| 1674 %SetNativeFlag(Intl.DateTimeFormat.prototype.resolvedOptions); |
| 1675 |
| 1676 |
| 1677 /** |
| 1678 * Returns the subset of the given locale list for which this locale list |
| 1679 * has a matching (possibly fallback) locale. Locales appear in the same |
| 1680 * order in the returned list as in the input list. |
| 1681 * Options are optional parameter. |
| 1682 */ |
| 1683 %SetProperty(Intl.DateTimeFormat, 'supportedLocalesOf', function(locales) { |
| 1684 if (%_IsConstructCall()) { |
| 1685 throw new $TypeError(ORDINARY_FUNCTION_CALLED_AS_CONSTRUCTOR); |
| 1686 } |
| 1687 |
| 1688 return supportedLocalesOf('dateformat', locales, arguments[1]); |
| 1689 }, |
| 1690 DONT_ENUM |
| 1691 ); |
| 1692 %FunctionSetName(Intl.DateTimeFormat.supportedLocalesOf, 'supportedLocalesOf'); |
| 1693 %FunctionRemovePrototype(Intl.DateTimeFormat.supportedLocalesOf); |
| 1694 %SetNativeFlag(Intl.DateTimeFormat.supportedLocalesOf); |
| 1695 |
| 1696 |
| 1697 /** |
| 1698 * Returns a String value representing the result of calling ToNumber(date) |
| 1699 * according to the effective locale and the formatting options of this |
| 1700 * DateTimeFormat. |
| 1701 */ |
| 1702 function formatDate(formatter, dateValue) { |
| 1703 var dateMs; |
| 1704 if (dateValue === undefined) { |
| 1705 dateMs = $Date.now(); |
| 1706 } else { |
| 1707 dateMs = $Number(dateValue); |
| 1708 } |
| 1709 |
| 1710 if (!$isFinite(dateMs)) { |
| 1711 throw new $RangeError('Provided date is not in valid range.'); |
| 1712 } |
| 1713 |
| 1714 return %InternalDateFormat(formatter.formatter, new $Date(dateMs)); |
| 1715 } |
| 1716 |
| 1717 |
| 1718 /** |
| 1719 * Returns a Date object representing the result of calling ToString(value) |
| 1720 * according to the effective locale and the formatting options of this |
| 1721 * DateTimeFormat. |
| 1722 * Returns undefined if date string cannot be parsed. |
| 1723 */ |
| 1724 function parseDate(formatter, value) { |
| 1725 return %InternalDateParse(formatter.formatter, $String(value)); |
| 1726 } |
| 1727 |
| 1728 |
| 1729 // 0 because date is optional argument. |
| 1730 addBoundMethod(Intl.DateTimeFormat, 'format', formatDate, 0); |
| 1731 addBoundMethod(Intl.DateTimeFormat, 'v8Parse', parseDate, 1); |
| 1732 |
| 1733 |
| 1734 /** |
| 1735 * Returns canonical Area/Location name, or throws an exception if the zone |
| 1736 * name is invalid IANA name. |
| 1737 */ |
| 1738 function canonicalizeTimeZoneID(tzID) { |
| 1739 // Skip undefined zones. |
| 1740 if (tzID === undefined) { |
| 1741 return tzID; |
| 1742 } |
| 1743 |
| 1744 // Special case handling (UTC, GMT). |
| 1745 var upperID = tzID.toUpperCase(); |
| 1746 if (upperID === 'UTC' || upperID === 'GMT' || |
| 1747 upperID === 'ETC/UTC' || upperID === 'ETC/GMT') { |
| 1748 return 'UTC'; |
| 1749 } |
| 1750 |
| 1751 // We expect only _ and / beside ASCII letters. |
| 1752 // All inputs should conform to Area/Location from now on. |
| 1753 var match = GetTimezoneNameCheckRE().exec(tzID); |
| 1754 if (match === null) { |
| 1755 throw new $RangeError('Expected Area/Location for time zone, got ' + tzID); |
| 1756 } |
| 1757 |
| 1758 var result = toTitleCaseWord(match[1]) + '/' + toTitleCaseWord(match[2]); |
| 1759 var i = 3; |
| 1760 while (match[i] !== undefined && i < match.length) { |
| 1761 result = result + '_' + toTitleCaseWord(match[i]); |
| 1762 i++; |
| 1763 } |
| 1764 |
| 1765 return result; |
| 1766 } |
| 1767 |
| 1768 /** |
| 1769 * Initializes the given object so it's a valid BreakIterator instance. |
| 1770 * Useful for subclassing. |
| 1771 */ |
| 1772 function initializeBreakIterator(iterator, locales, options) { |
| 1773 if (iterator.hasOwnProperty('__initializedIntlObject')) { |
| 1774 throw new $TypeError('Trying to re-initialize v8BreakIterator object.'); |
| 1775 } |
| 1776 |
| 1777 if (options === undefined) { |
| 1778 options = {}; |
| 1779 } |
| 1780 |
| 1781 var getOption = getGetOption(options, 'breakiterator'); |
| 1782 |
| 1783 var internalOptions = {}; |
| 1784 |
| 1785 defineWEProperty(internalOptions, 'type', getOption( |
| 1786 'type', 'string', ['character', 'word', 'sentence', 'line'], 'word')); |
| 1787 |
| 1788 var locale = resolveLocale('breakiterator', locales, options); |
| 1789 var resolved = $Object.defineProperties({}, { |
| 1790 requestedLocale: {value: locale.locale, writable: true}, |
| 1791 type: {value: internalOptions.type, writable: true}, |
| 1792 locale: {writable: true} |
| 1793 }); |
| 1794 |
| 1795 var internalIterator = %CreateBreakIterator(locale.locale, |
| 1796 internalOptions, |
| 1797 resolved); |
| 1798 |
| 1799 $Object.defineProperty(iterator, 'iterator', {value: internalIterator}); |
| 1800 $Object.defineProperty(iterator, 'resolved', {value: resolved}); |
| 1801 $Object.defineProperty(iterator, '__initializedIntlObject', |
| 1802 {value: 'breakiterator'}); |
| 1803 |
| 1804 return iterator; |
| 1805 } |
| 1806 |
| 1807 |
| 1808 /** |
| 1809 * Constructs Intl.v8BreakIterator object given optional locales and options |
| 1810 * parameters. |
| 1811 * |
| 1812 * @constructor |
| 1813 */ |
| 1814 %SetProperty(Intl, 'v8BreakIterator', function() { |
| 1815 var locales = arguments[0]; |
| 1816 var options = arguments[1]; |
| 1817 |
| 1818 if (!this || this === Intl) { |
| 1819 // Constructor is called as a function. |
| 1820 return new Intl.v8BreakIterator(locales, options); |
| 1821 } |
| 1822 |
| 1823 return initializeBreakIterator(toObject(this), locales, options); |
| 1824 }, |
| 1825 DONT_ENUM |
| 1826 ); |
| 1827 |
| 1828 |
| 1829 /** |
| 1830 * BreakIterator resolvedOptions method. |
| 1831 */ |
| 1832 %SetProperty(Intl.v8BreakIterator.prototype, 'resolvedOptions', function() { |
| 1833 if (%_IsConstructCall()) { |
| 1834 throw new $TypeError(ORDINARY_FUNCTION_CALLED_AS_CONSTRUCTOR); |
| 1835 } |
| 1836 |
| 1837 if (!this || typeof this !== 'object' || |
| 1838 this.__initializedIntlObject !== 'breakiterator') { |
| 1839 throw new $TypeError('resolvedOptions method called on a non-object or ' + |
| 1840 'on a object that is not Intl.v8BreakIterator.'); |
| 1841 } |
| 1842 |
| 1843 var segmenter = this; |
| 1844 var locale = getOptimalLanguageTag(segmenter.resolved.requestedLocale, |
| 1845 segmenter.resolved.locale); |
| 1846 |
| 1847 return { |
| 1848 locale: locale, |
| 1849 type: segmenter.resolved.type |
| 1850 }; |
| 1851 }, |
| 1852 DONT_ENUM |
| 1853 ); |
| 1854 %FunctionSetName(Intl.v8BreakIterator.prototype.resolvedOptions, |
| 1855 'resolvedOptions'); |
| 1856 %FunctionRemovePrototype(Intl.v8BreakIterator.prototype.resolvedOptions); |
| 1857 %SetNativeFlag(Intl.v8BreakIterator.prototype.resolvedOptions); |
| 1858 |
| 1859 |
| 1860 /** |
| 1861 * Returns the subset of the given locale list for which this locale list |
| 1862 * has a matching (possibly fallback) locale. Locales appear in the same |
| 1863 * order in the returned list as in the input list. |
| 1864 * Options are optional parameter. |
| 1865 */ |
| 1866 %SetProperty(Intl.v8BreakIterator, 'supportedLocalesOf', function(locales) { |
| 1867 if (%_IsConstructCall()) { |
| 1868 throw new $TypeError(ORDINARY_FUNCTION_CALLED_AS_CONSTRUCTOR); |
| 1869 } |
| 1870 |
| 1871 return supportedLocalesOf('breakiterator', locales, arguments[1]); |
| 1872 }, |
| 1873 DONT_ENUM |
| 1874 ); |
| 1875 %FunctionSetName(Intl.v8BreakIterator.supportedLocalesOf, 'supportedLocalesOf'); |
| 1876 %FunctionRemovePrototype(Intl.v8BreakIterator.supportedLocalesOf); |
| 1877 %SetNativeFlag(Intl.v8BreakIterator.supportedLocalesOf); |
| 1878 |
| 1879 |
| 1880 /** |
| 1881 * Adopts text to segment using the iterator. Old text, if present, |
| 1882 * gets discarded. |
| 1883 */ |
| 1884 function adoptText(iterator, text) { |
| 1885 %BreakIteratorAdoptText(iterator.iterator, $String(text)); |
| 1886 } |
| 1887 |
| 1888 |
| 1889 /** |
| 1890 * Returns index of the first break in the string and moves current pointer. |
| 1891 */ |
| 1892 function first(iterator) { |
| 1893 return %BreakIteratorFirst(iterator.iterator); |
| 1894 } |
| 1895 |
| 1896 |
| 1897 /** |
| 1898 * Returns the index of the next break and moves the pointer. |
| 1899 */ |
| 1900 function next(iterator) { |
| 1901 return %BreakIteratorNext(iterator.iterator); |
| 1902 } |
| 1903 |
| 1904 |
| 1905 /** |
| 1906 * Returns index of the current break. |
| 1907 */ |
| 1908 function current(iterator) { |
| 1909 return %BreakIteratorCurrent(iterator.iterator); |
| 1910 } |
| 1911 |
| 1912 |
| 1913 /** |
| 1914 * Returns type of the current break. |
| 1915 */ |
| 1916 function breakType(iterator) { |
| 1917 return %BreakIteratorBreakType(iterator.iterator); |
| 1918 } |
| 1919 |
| 1920 |
| 1921 addBoundMethod(Intl.v8BreakIterator, 'adoptText', adoptText, 1); |
| 1922 addBoundMethod(Intl.v8BreakIterator, 'first', first, 0); |
| 1923 addBoundMethod(Intl.v8BreakIterator, 'next', next, 0); |
| 1924 addBoundMethod(Intl.v8BreakIterator, 'current', current, 0); |
| 1925 addBoundMethod(Intl.v8BreakIterator, 'breakType', breakType, 0); |
| 1926 |
| 1927 // Save references to Intl objects and methods we use, for added security. |
| 1928 var savedObjects = { |
| 1929 'collator': Intl.Collator, |
| 1930 'numberformat': Intl.NumberFormat, |
| 1931 'dateformatall': Intl.DateTimeFormat, |
| 1932 'dateformatdate': Intl.DateTimeFormat, |
| 1933 'dateformattime': Intl.DateTimeFormat |
| 1934 }; |
| 1935 |
| 1936 |
| 1937 // Default (created with undefined locales and options parameters) collator, |
| 1938 // number and date format instances. They'll be created as needed. |
| 1939 var defaultObjects = { |
| 1940 'collator': undefined, |
| 1941 'numberformat': undefined, |
| 1942 'dateformatall': undefined, |
| 1943 'dateformatdate': undefined, |
| 1944 'dateformattime': undefined, |
| 1945 }; |
| 1946 |
| 1947 |
| 1948 /** |
| 1949 * Returns cached or newly created instance of a given service. |
| 1950 * We cache only default instances (where no locales or options are provided). |
| 1951 */ |
| 1952 function cachedOrNewService(service, locales, options, defaults) { |
| 1953 var useOptions = (defaults === undefined) ? options : defaults; |
| 1954 if (locales === undefined && options === undefined) { |
| 1955 if (defaultObjects[service] === undefined) { |
| 1956 defaultObjects[service] = new savedObjects[service](locales, useOptions); |
| 1957 } |
| 1958 return defaultObjects[service]; |
| 1959 } |
| 1960 return new savedObjects[service](locales, useOptions); |
| 1961 } |
| 1962 |
| 1963 |
| 1964 /** |
| 1965 * Compares this and that, and returns less than 0, 0 or greater than 0 value. |
| 1966 * Overrides the built-in method. |
| 1967 */ |
| 1968 $Object.defineProperty($String.prototype, 'localeCompare', { |
| 1969 value: function(that) { |
| 1970 if (%_IsConstructCall()) { |
| 1971 throw new $TypeError(ORDINARY_FUNCTION_CALLED_AS_CONSTRUCTOR); |
| 1972 } |
| 1973 |
| 1974 if (this === undefined || this === null) { |
| 1975 throw new $TypeError('Method invoked on undefined or null value.'); |
| 1976 } |
| 1977 |
| 1978 var locales = arguments[1]; |
| 1979 var options = arguments[2]; |
| 1980 var collator = cachedOrNewService('collator', locales, options); |
| 1981 return compare(collator, this, that); |
| 1982 }, |
| 1983 writable: true, |
| 1984 configurable: true, |
| 1985 enumerable: false |
| 1986 }); |
| 1987 %FunctionSetName($String.prototype.localeCompare, 'localeCompare'); |
| 1988 %FunctionRemovePrototype($String.prototype.localeCompare); |
| 1989 %SetNativeFlag($String.prototype.localeCompare); |
| 1990 |
| 1991 |
| 1992 /** |
| 1993 * Formats a Number object (this) using locale and options values. |
| 1994 * If locale or options are omitted, defaults are used. |
| 1995 */ |
| 1996 $Object.defineProperty($Number.prototype, 'toLocaleString', { |
| 1997 value: function() { |
| 1998 if (%_IsConstructCall()) { |
| 1999 throw new $TypeError(ORDINARY_FUNCTION_CALLED_AS_CONSTRUCTOR); |
| 2000 } |
| 2001 |
| 2002 if (!(this instanceof $Number) && typeof(this) !== 'number') { |
| 2003 throw new $TypeError('Method invoked on an object that is not Number.'); |
| 2004 } |
| 2005 |
| 2006 var locales = arguments[0]; |
| 2007 var options = arguments[1]; |
| 2008 var numberFormat = cachedOrNewService('numberformat', locales, options); |
| 2009 return formatNumber(numberFormat, this); |
| 2010 }, |
| 2011 writable: true, |
| 2012 configurable: true, |
| 2013 enumerable: false |
| 2014 }); |
| 2015 %FunctionSetName($Number.prototype.toLocaleString, 'toLocaleString'); |
| 2016 %FunctionRemovePrototype($Number.prototype.toLocaleString); |
| 2017 %SetNativeFlag($Number.prototype.toLocaleString); |
| 2018 |
| 2019 |
| 2020 /** |
| 2021 * Returns actual formatted date or fails if date parameter is invalid. |
| 2022 */ |
| 2023 function toLocaleDateTime(date, locales, options, required, defaults, service) { |
| 2024 if (!(date instanceof $Date)) { |
| 2025 throw new $TypeError('Method invoked on an object that is not Date.'); |
| 2026 } |
| 2027 |
| 2028 if ($isNaN(date)) { |
| 2029 return 'Invalid Date'; |
| 2030 } |
| 2031 |
| 2032 var internalOptions = toDateTimeOptions(options, required, defaults); |
| 2033 |
| 2034 var dateFormat = |
| 2035 cachedOrNewService(service, locales, options, internalOptions); |
| 2036 |
| 2037 return formatDate(dateFormat, date); |
| 2038 } |
| 2039 |
| 2040 |
| 2041 /** |
| 2042 * Formats a Date object (this) using locale and options values. |
| 2043 * If locale or options are omitted, defaults are used - both date and time are |
| 2044 * present in the output. |
| 2045 */ |
| 2046 $Object.defineProperty($Date.prototype, 'toLocaleString', { |
| 2047 value: function() { |
| 2048 if (%_IsConstructCall()) { |
| 2049 throw new $TypeError(ORDINARY_FUNCTION_CALLED_AS_CONSTRUCTOR); |
| 2050 } |
| 2051 |
| 2052 var locales = arguments[0]; |
| 2053 var options = arguments[1]; |
| 2054 return toLocaleDateTime( |
| 2055 this, locales, options, 'any', 'all', 'dateformatall'); |
| 2056 }, |
| 2057 writable: true, |
| 2058 configurable: true, |
| 2059 enumerable: false |
| 2060 }); |
| 2061 %FunctionSetName($Date.prototype.toLocaleString, 'toLocaleString'); |
| 2062 %FunctionRemovePrototype($Date.prototype.toLocaleString); |
| 2063 %SetNativeFlag($Date.prototype.toLocaleString); |
| 2064 |
| 2065 |
| 2066 /** |
| 2067 * Formats a Date object (this) using locale and options values. |
| 2068 * If locale or options are omitted, defaults are used - only date is present |
| 2069 * in the output. |
| 2070 */ |
| 2071 $Object.defineProperty($Date.prototype, 'toLocaleDateString', { |
| 2072 value: function() { |
| 2073 if (%_IsConstructCall()) { |
| 2074 throw new $TypeError(ORDINARY_FUNCTION_CALLED_AS_CONSTRUCTOR); |
| 2075 } |
| 2076 |
| 2077 var locales = arguments[0]; |
| 2078 var options = arguments[1]; |
| 2079 return toLocaleDateTime( |
| 2080 this, locales, options, 'date', 'date', 'dateformatdate'); |
| 2081 }, |
| 2082 writable: true, |
| 2083 configurable: true, |
| 2084 enumerable: false |
| 2085 }); |
| 2086 %FunctionSetName($Date.prototype.toLocaleDateString, 'toLocaleDateString'); |
| 2087 %FunctionRemovePrototype($Date.prototype.toLocaleDateString); |
| 2088 %SetNativeFlag($Date.prototype.toLocaleDateString); |
| 2089 |
| 2090 |
| 2091 /** |
| 2092 * Formats a Date object (this) using locale and options values. |
| 2093 * If locale or options are omitted, defaults are used - only time is present |
| 2094 * in the output. |
| 2095 */ |
| 2096 $Object.defineProperty($Date.prototype, 'toLocaleTimeString', { |
| 2097 value: function() { |
| 2098 if (%_IsConstructCall()) { |
| 2099 throw new $TypeError(ORDINARY_FUNCTION_CALLED_AS_CONSTRUCTOR); |
| 2100 } |
| 2101 |
| 2102 var locales = arguments[0]; |
| 2103 var options = arguments[1]; |
| 2104 return toLocaleDateTime( |
| 2105 this, locales, options, 'time', 'time', 'dateformattime'); |
| 2106 }, |
| 2107 writable: true, |
| 2108 configurable: true, |
| 2109 enumerable: false |
| 2110 }); |
| 2111 %FunctionSetName($Date.prototype.toLocaleTimeString, 'toLocaleTimeString'); |
| 2112 %FunctionRemovePrototype($Date.prototype.toLocaleTimeString); |
| 2113 %SetNativeFlag($Date.prototype.toLocaleTimeString); |
| 2114 |
| 2115 return Intl; |
| 2116 }())}); |
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