1// Copyright 2013 the V8 project authors. All rights reserved.
2// Use of this source code is governed by a BSD-style license that can be
3// found in the LICENSE file.
4// limitations under the License.
5
6#include "src/i18n.h"
7
8#include "src/api.h"
9#include "src/factory.h"
10#include "src/isolate.h"
11#include "unicode/brkiter.h"
12#include "unicode/calendar.h"
13#include "unicode/coll.h"
14#include "unicode/curramt.h"
15#include "unicode/dcfmtsym.h"
16#include "unicode/decimfmt.h"
17#include "unicode/dtfmtsym.h"
18#include "unicode/dtptngen.h"
19#include "unicode/gregocal.h"
20#include "unicode/locid.h"
21#include "unicode/numfmt.h"
22#include "unicode/numsys.h"
23#include "unicode/rbbi.h"
24#include "unicode/smpdtfmt.h"
25#include "unicode/timezone.h"
26#include "unicode/uchar.h"
27#include "unicode/ucol.h"
28#include "unicode/ucurr.h"
29#include "unicode/unum.h"
30#include "unicode/uversion.h"
31
32namespace v8 {
33namespace internal {
34
35namespace {
36
37bool ExtractStringSetting(Isolate* isolate,
38                          Handle<JSObject> options,
39                          const char* key,
40                          icu::UnicodeString* setting) {
41  Handle<String> str = isolate->factory()->NewStringFromAsciiChecked(key);
42  Handle<Object> object =
43      JSReceiver::GetProperty(options, str).ToHandleChecked();
44  if (object->IsString()) {
45    v8::String::Utf8Value utf8_string(
46        v8::Utils::ToLocal(Handle<String>::cast(object)));
47    *setting = icu::UnicodeString::fromUTF8(*utf8_string);
48    return true;
49  }
50  return false;
51}
52
53
54bool ExtractIntegerSetting(Isolate* isolate,
55                           Handle<JSObject> options,
56                           const char* key,
57                           int32_t* value) {
58  Handle<String> str = isolate->factory()->NewStringFromAsciiChecked(key);
59  Handle<Object> object =
60      JSReceiver::GetProperty(options, str).ToHandleChecked();
61  if (object->IsNumber()) {
62    object->ToInt32(value);
63    return true;
64  }
65  return false;
66}
67
68
69bool ExtractBooleanSetting(Isolate* isolate,
70                           Handle<JSObject> options,
71                           const char* key,
72                           bool* value) {
73  Handle<String> str = isolate->factory()->NewStringFromAsciiChecked(key);
74  Handle<Object> object =
75      JSReceiver::GetProperty(options, str).ToHandleChecked();
76  if (object->IsBoolean()) {
77    *value = object->BooleanValue();
78    return true;
79  }
80  return false;
81}
82
83
84icu::SimpleDateFormat* CreateICUDateFormat(
85    Isolate* isolate,
86    const icu::Locale& icu_locale,
87    Handle<JSObject> options) {
88  // Create time zone as specified by the user. We have to re-create time zone
89  // since calendar takes ownership.
90  icu::TimeZone* tz = NULL;
91  icu::UnicodeString timezone;
92  if (ExtractStringSetting(isolate, options, "timeZone", &timezone)) {
93    tz = icu::TimeZone::createTimeZone(timezone);
94  } else {
95    tz = icu::TimeZone::createDefault();
96  }
97
98  // Create a calendar using locale, and apply time zone to it.
99  UErrorCode status = U_ZERO_ERROR;
100  icu::Calendar* calendar =
101      icu::Calendar::createInstance(tz, icu_locale, status);
102
103  if (calendar->getDynamicClassID() ==
104      icu::GregorianCalendar::getStaticClassID()) {
105    icu::GregorianCalendar* gc = (icu::GregorianCalendar*)calendar;
106    UErrorCode status = U_ZERO_ERROR;
107    // The beginning of ECMAScript time, namely -(2**53)
108    const double start_of_time = -9007199254740992;
109    gc->setGregorianChange(start_of_time, status);
110    DCHECK(U_SUCCESS(status));
111  }
112
113  // Make formatter from skeleton. Calendar and numbering system are added
114  // to the locale as Unicode extension (if they were specified at all).
115  icu::SimpleDateFormat* date_format = NULL;
116  icu::UnicodeString skeleton;
117  if (ExtractStringSetting(isolate, options, "skeleton", &skeleton)) {
118    icu::DateTimePatternGenerator* generator =
119        icu::DateTimePatternGenerator::createInstance(icu_locale, status);
120    icu::UnicodeString pattern;
121    if (U_SUCCESS(status)) {
122      pattern = generator->getBestPattern(skeleton, status);
123      delete generator;
124    }
125
126    date_format = new icu::SimpleDateFormat(pattern, icu_locale, status);
127    if (U_SUCCESS(status)) {
128      date_format->adoptCalendar(calendar);
129    }
130  }
131
132  if (U_FAILURE(status)) {
133    delete calendar;
134    delete date_format;
135    date_format = NULL;
136  }
137
138  return date_format;
139}
140
141
142void SetResolvedDateSettings(Isolate* isolate,
143                             const icu::Locale& icu_locale,
144                             icu::SimpleDateFormat* date_format,
145                             Handle<JSObject> resolved) {
146  Factory* factory = isolate->factory();
147  UErrorCode status = U_ZERO_ERROR;
148  icu::UnicodeString pattern;
149  date_format->toPattern(pattern);
150  JSObject::SetProperty(
151      resolved, factory->intl_pattern_symbol(),
152      factory->NewStringFromTwoByte(
153                   Vector<const uint16_t>(
154                       reinterpret_cast<const uint16_t*>(pattern.getBuffer()),
155                       pattern.length())).ToHandleChecked(),
156      SLOPPY).Assert();
157
158  // Set time zone and calendar.
159  const icu::Calendar* calendar = date_format->getCalendar();
160  const char* calendar_name = calendar->getType();
161  JSObject::SetProperty(resolved, factory->NewStringFromStaticChars("calendar"),
162                        factory->NewStringFromAsciiChecked(calendar_name),
163                        SLOPPY).Assert();
164
165  const icu::TimeZone& tz = calendar->getTimeZone();
166  icu::UnicodeString time_zone;
167  tz.getID(time_zone);
168
169  icu::UnicodeString canonical_time_zone;
170  icu::TimeZone::getCanonicalID(time_zone, canonical_time_zone, status);
171  if (U_SUCCESS(status)) {
172    if (canonical_time_zone == UNICODE_STRING_SIMPLE("Etc/GMT")) {
173      JSObject::SetProperty(
174          resolved, factory->NewStringFromStaticChars("timeZone"),
175          factory->NewStringFromStaticChars("UTC"), SLOPPY).Assert();
176    } else {
177      JSObject::SetProperty(
178          resolved, factory->NewStringFromStaticChars("timeZone"),
179          factory->NewStringFromTwoByte(
180                       Vector<const uint16_t>(
181                           reinterpret_cast<const uint16_t*>(
182                               canonical_time_zone.getBuffer()),
183                           canonical_time_zone.length())).ToHandleChecked(),
184          SLOPPY).Assert();
185    }
186  }
187
188  // Ugly hack. ICU doesn't expose numbering system in any way, so we have
189  // to assume that for given locale NumberingSystem constructor produces the
190  // same digits as NumberFormat/Calendar would.
191  status = U_ZERO_ERROR;
192  icu::NumberingSystem* numbering_system =
193      icu::NumberingSystem::createInstance(icu_locale, status);
194  if (U_SUCCESS(status)) {
195    const char* ns = numbering_system->getName();
196    JSObject::SetProperty(
197        resolved, factory->NewStringFromStaticChars("numberingSystem"),
198        factory->NewStringFromAsciiChecked(ns), SLOPPY).Assert();
199  } else {
200    JSObject::SetProperty(resolved,
201                          factory->NewStringFromStaticChars("numberingSystem"),
202                          factory->undefined_value(), SLOPPY).Assert();
203  }
204  delete numbering_system;
205
206  // Set the locale
207  char result[ULOC_FULLNAME_CAPACITY];
208  status = U_ZERO_ERROR;
209  uloc_toLanguageTag(
210      icu_locale.getName(), result, ULOC_FULLNAME_CAPACITY, FALSE, &status);
211  if (U_SUCCESS(status)) {
212    JSObject::SetProperty(resolved, factory->NewStringFromStaticChars("locale"),
213                          factory->NewStringFromAsciiChecked(result),
214                          SLOPPY).Assert();
215  } else {
216    // This would never happen, since we got the locale from ICU.
217    JSObject::SetProperty(resolved, factory->NewStringFromStaticChars("locale"),
218                          factory->NewStringFromStaticChars("und"),
219                          SLOPPY).Assert();
220  }
221}
222
223
224template<int internal_fields, EternalHandles::SingletonHandle field>
225Handle<ObjectTemplateInfo> GetEternal(Isolate* isolate) {
226  if (isolate->eternal_handles()->Exists(field)) {
227    return Handle<ObjectTemplateInfo>::cast(
228        isolate->eternal_handles()->GetSingleton(field));
229  }
230  v8::Local<v8::ObjectTemplate> raw_template =
231      v8::ObjectTemplate::New(reinterpret_cast<v8::Isolate*>(isolate));
232  raw_template->SetInternalFieldCount(internal_fields);
233  return Handle<ObjectTemplateInfo>::cast(
234      isolate->eternal_handles()->CreateSingleton(
235        isolate,
236        *v8::Utils::OpenHandle(*raw_template),
237        field));
238}
239
240
241icu::DecimalFormat* CreateICUNumberFormat(
242    Isolate* isolate,
243    const icu::Locale& icu_locale,
244    Handle<JSObject> options) {
245  // Make formatter from options. Numbering system is added
246  // to the locale as Unicode extension (if it was specified at all).
247  UErrorCode status = U_ZERO_ERROR;
248  icu::DecimalFormat* number_format = NULL;
249  icu::UnicodeString style;
250  icu::UnicodeString currency;
251  if (ExtractStringSetting(isolate, options, "style", &style)) {
252    if (style == UNICODE_STRING_SIMPLE("currency")) {
253      icu::UnicodeString display;
254      ExtractStringSetting(isolate, options, "currency", &currency);
255      ExtractStringSetting(isolate, options, "currencyDisplay", &display);
256
257#if (U_ICU_VERSION_MAJOR_NUM == 4) && (U_ICU_VERSION_MINOR_NUM <= 6)
258      icu::NumberFormat::EStyles format_style;
259      if (display == UNICODE_STRING_SIMPLE("code")) {
260        format_style = icu::NumberFormat::kIsoCurrencyStyle;
261      } else if (display == UNICODE_STRING_SIMPLE("name")) {
262        format_style = icu::NumberFormat::kPluralCurrencyStyle;
263      } else {
264        format_style = icu::NumberFormat::kCurrencyStyle;
265      }
266#else  // ICU version is 4.8 or above (we ignore versions below 4.0).
267      UNumberFormatStyle format_style;
268      if (display == UNICODE_STRING_SIMPLE("code")) {
269        format_style = UNUM_CURRENCY_ISO;
270      } else if (display == UNICODE_STRING_SIMPLE("name")) {
271        format_style = UNUM_CURRENCY_PLURAL;
272      } else {
273        format_style = UNUM_CURRENCY;
274      }
275#endif
276
277      number_format = static_cast<icu::DecimalFormat*>(
278          icu::NumberFormat::createInstance(icu_locale, format_style, status));
279
280      if (U_FAILURE(status)) {
281        delete number_format;
282        return NULL;
283      }
284
285      UErrorCode status_digits = U_ZERO_ERROR;
286      uint32_t fraction_digits = ucurr_getDefaultFractionDigits(
287        currency.getTerminatedBuffer(), &status_digits);
288      if (U_SUCCESS(status_digits)) {
289        number_format->setMinimumFractionDigits(fraction_digits);
290        number_format->setMaximumFractionDigits(fraction_digits);
291      } else {
292        // Set min & max to default values (previously in i18n.js)
293        number_format->setMinimumFractionDigits(0);
294        number_format->setMaximumFractionDigits(3);
295      }
296    } else if (style == UNICODE_STRING_SIMPLE("percent")) {
297      number_format = static_cast<icu::DecimalFormat*>(
298          icu::NumberFormat::createPercentInstance(icu_locale, status));
299      if (U_FAILURE(status)) {
300        delete number_format;
301        return NULL;
302      }
303      // Make sure 1.1% doesn't go into 2%.
304      number_format->setMinimumFractionDigits(1);
305    } else {
306      // Make a decimal instance by default.
307      number_format = static_cast<icu::DecimalFormat*>(
308          icu::NumberFormat::createInstance(icu_locale, status));
309    }
310  }
311
312  if (U_FAILURE(status)) {
313    delete number_format;
314    return NULL;
315  }
316
317  // Set all options.
318  if (!currency.isEmpty()) {
319    number_format->setCurrency(currency.getBuffer(), status);
320  }
321
322  int32_t digits;
323  if (ExtractIntegerSetting(
324          isolate, options, "minimumIntegerDigits", &digits)) {
325    number_format->setMinimumIntegerDigits(digits);
326  }
327
328  if (ExtractIntegerSetting(
329          isolate, options, "minimumFractionDigits", &digits)) {
330    number_format->setMinimumFractionDigits(digits);
331  }
332
333  if (ExtractIntegerSetting(
334          isolate, options, "maximumFractionDigits", &digits)) {
335    number_format->setMaximumFractionDigits(digits);
336  }
337
338  bool significant_digits_used = false;
339  if (ExtractIntegerSetting(
340          isolate, options, "minimumSignificantDigits", &digits)) {
341    number_format->setMinimumSignificantDigits(digits);
342    significant_digits_used = true;
343  }
344
345  if (ExtractIntegerSetting(
346          isolate, options, "maximumSignificantDigits", &digits)) {
347    number_format->setMaximumSignificantDigits(digits);
348    significant_digits_used = true;
349  }
350
351  number_format->setSignificantDigitsUsed(significant_digits_used);
352
353  bool grouping;
354  if (ExtractBooleanSetting(isolate, options, "useGrouping", &grouping)) {
355    number_format->setGroupingUsed(grouping);
356  }
357
358  // Set rounding mode.
359  number_format->setRoundingMode(icu::DecimalFormat::kRoundHalfUp);
360
361  return number_format;
362}
363
364
365void SetResolvedNumberSettings(Isolate* isolate,
366                               const icu::Locale& icu_locale,
367                               icu::DecimalFormat* number_format,
368                               Handle<JSObject> resolved) {
369  Factory* factory = isolate->factory();
370  icu::UnicodeString pattern;
371  number_format->toPattern(pattern);
372  JSObject::SetProperty(
373      resolved, factory->intl_pattern_symbol(),
374      factory->NewStringFromTwoByte(
375                   Vector<const uint16_t>(
376                       reinterpret_cast<const uint16_t*>(pattern.getBuffer()),
377                       pattern.length())).ToHandleChecked(),
378      SLOPPY).Assert();
379
380  // Set resolved currency code in options.currency if not empty.
381  icu::UnicodeString currency(number_format->getCurrency());
382  if (!currency.isEmpty()) {
383    JSObject::SetProperty(
384        resolved, factory->NewStringFromStaticChars("currency"),
385        factory->NewStringFromTwoByte(Vector<const uint16_t>(
386                                          reinterpret_cast<const uint16_t*>(
387                                              currency.getBuffer()),
388                                          currency.length())).ToHandleChecked(),
389        SLOPPY).Assert();
390  }
391
392  // Ugly hack. ICU doesn't expose numbering system in any way, so we have
393  // to assume that for given locale NumberingSystem constructor produces the
394  // same digits as NumberFormat/Calendar would.
395  UErrorCode status = U_ZERO_ERROR;
396  icu::NumberingSystem* numbering_system =
397      icu::NumberingSystem::createInstance(icu_locale, status);
398  if (U_SUCCESS(status)) {
399    const char* ns = numbering_system->getName();
400    JSObject::SetProperty(
401        resolved, factory->NewStringFromStaticChars("numberingSystem"),
402        factory->NewStringFromAsciiChecked(ns), SLOPPY).Assert();
403  } else {
404    JSObject::SetProperty(resolved,
405                          factory->NewStringFromStaticChars("numberingSystem"),
406                          factory->undefined_value(), SLOPPY).Assert();
407  }
408  delete numbering_system;
409
410  JSObject::SetProperty(
411      resolved, factory->NewStringFromStaticChars("useGrouping"),
412      factory->ToBoolean(number_format->isGroupingUsed()), SLOPPY).Assert();
413
414  JSObject::SetProperty(
415      resolved, factory->NewStringFromStaticChars("minimumIntegerDigits"),
416      factory->NewNumberFromInt(number_format->getMinimumIntegerDigits()),
417      SLOPPY).Assert();
418
419  JSObject::SetProperty(
420      resolved, factory->NewStringFromStaticChars("minimumFractionDigits"),
421      factory->NewNumberFromInt(number_format->getMinimumFractionDigits()),
422      SLOPPY).Assert();
423
424  JSObject::SetProperty(
425      resolved, factory->NewStringFromStaticChars("maximumFractionDigits"),
426      factory->NewNumberFromInt(number_format->getMaximumFractionDigits()),
427      SLOPPY).Assert();
428
429  Handle<String> key =
430      factory->NewStringFromStaticChars("minimumSignificantDigits");
431  Maybe<bool> maybe = JSReceiver::HasOwnProperty(resolved, key);
432  CHECK(maybe.IsJust());
433  if (maybe.FromJust()) {
434    JSObject::SetProperty(
435        resolved, factory->NewStringFromStaticChars("minimumSignificantDigits"),
436        factory->NewNumberFromInt(number_format->getMinimumSignificantDigits()),
437        SLOPPY).Assert();
438  }
439
440  key = factory->NewStringFromStaticChars("maximumSignificantDigits");
441  maybe = JSReceiver::HasOwnProperty(resolved, key);
442  CHECK(maybe.IsJust());
443  if (maybe.FromJust()) {
444    JSObject::SetProperty(
445        resolved, factory->NewStringFromStaticChars("maximumSignificantDigits"),
446        factory->NewNumberFromInt(number_format->getMaximumSignificantDigits()),
447        SLOPPY).Assert();
448  }
449
450  // Set the locale
451  char result[ULOC_FULLNAME_CAPACITY];
452  status = U_ZERO_ERROR;
453  uloc_toLanguageTag(
454      icu_locale.getName(), result, ULOC_FULLNAME_CAPACITY, FALSE, &status);
455  if (U_SUCCESS(status)) {
456    JSObject::SetProperty(resolved, factory->NewStringFromStaticChars("locale"),
457                          factory->NewStringFromAsciiChecked(result),
458                          SLOPPY).Assert();
459  } else {
460    // This would never happen, since we got the locale from ICU.
461    JSObject::SetProperty(resolved, factory->NewStringFromStaticChars("locale"),
462                          factory->NewStringFromStaticChars("und"),
463                          SLOPPY).Assert();
464  }
465}
466
467
468icu::Collator* CreateICUCollator(
469    Isolate* isolate,
470    const icu::Locale& icu_locale,
471    Handle<JSObject> options) {
472  // Make collator from options.
473  icu::Collator* collator = NULL;
474  UErrorCode status = U_ZERO_ERROR;
475  collator = icu::Collator::createInstance(icu_locale, status);
476
477  if (U_FAILURE(status)) {
478    delete collator;
479    return NULL;
480  }
481
482  // Set flags first, and then override them with sensitivity if necessary.
483  bool numeric;
484  if (ExtractBooleanSetting(isolate, options, "numeric", &numeric)) {
485    collator->setAttribute(
486        UCOL_NUMERIC_COLLATION, numeric ? UCOL_ON : UCOL_OFF, status);
487  }
488
489  // Normalization is always on, by the spec. We are free to optimize
490  // if the strings are already normalized (but we don't have a way to tell
491  // that right now).
492  collator->setAttribute(UCOL_NORMALIZATION_MODE, UCOL_ON, status);
493
494  icu::UnicodeString case_first;
495  if (ExtractStringSetting(isolate, options, "caseFirst", &case_first)) {
496    if (case_first == UNICODE_STRING_SIMPLE("upper")) {
497      collator->setAttribute(UCOL_CASE_FIRST, UCOL_UPPER_FIRST, status);
498    } else if (case_first == UNICODE_STRING_SIMPLE("lower")) {
499      collator->setAttribute(UCOL_CASE_FIRST, UCOL_LOWER_FIRST, status);
500    } else {
501      // Default (false/off).
502      collator->setAttribute(UCOL_CASE_FIRST, UCOL_OFF, status);
503    }
504  }
505
506  icu::UnicodeString sensitivity;
507  if (ExtractStringSetting(isolate, options, "sensitivity", &sensitivity)) {
508    if (sensitivity == UNICODE_STRING_SIMPLE("base")) {
509      collator->setStrength(icu::Collator::PRIMARY);
510    } else if (sensitivity == UNICODE_STRING_SIMPLE("accent")) {
511      collator->setStrength(icu::Collator::SECONDARY);
512    } else if (sensitivity == UNICODE_STRING_SIMPLE("case")) {
513      collator->setStrength(icu::Collator::PRIMARY);
514      collator->setAttribute(UCOL_CASE_LEVEL, UCOL_ON, status);
515    } else {
516      // variant (default)
517      collator->setStrength(icu::Collator::TERTIARY);
518    }
519  }
520
521  bool ignore;
522  if (ExtractBooleanSetting(isolate, options, "ignorePunctuation", &ignore)) {
523    if (ignore) {
524      collator->setAttribute(UCOL_ALTERNATE_HANDLING, UCOL_SHIFTED, status);
525    }
526  }
527
528  return collator;
529}
530
531
532void SetResolvedCollatorSettings(Isolate* isolate,
533                                 const icu::Locale& icu_locale,
534                                 icu::Collator* collator,
535                                 Handle<JSObject> resolved) {
536  Factory* factory = isolate->factory();
537  UErrorCode status = U_ZERO_ERROR;
538
539  JSObject::SetProperty(
540      resolved, factory->NewStringFromStaticChars("numeric"),
541      factory->ToBoolean(
542          collator->getAttribute(UCOL_NUMERIC_COLLATION, status) == UCOL_ON),
543      SLOPPY).Assert();
544
545  switch (collator->getAttribute(UCOL_CASE_FIRST, status)) {
546    case UCOL_LOWER_FIRST:
547      JSObject::SetProperty(
548          resolved, factory->NewStringFromStaticChars("caseFirst"),
549          factory->NewStringFromStaticChars("lower"), SLOPPY).Assert();
550      break;
551    case UCOL_UPPER_FIRST:
552      JSObject::SetProperty(
553          resolved, factory->NewStringFromStaticChars("caseFirst"),
554          factory->NewStringFromStaticChars("upper"), SLOPPY).Assert();
555      break;
556    default:
557      JSObject::SetProperty(
558          resolved, factory->NewStringFromStaticChars("caseFirst"),
559          factory->NewStringFromStaticChars("false"), SLOPPY).Assert();
560  }
561
562  switch (collator->getAttribute(UCOL_STRENGTH, status)) {
563    case UCOL_PRIMARY: {
564      JSObject::SetProperty(
565          resolved, factory->NewStringFromStaticChars("strength"),
566          factory->NewStringFromStaticChars("primary"), SLOPPY).Assert();
567
568      // case level: true + s1 -> case, s1 -> base.
569      if (UCOL_ON == collator->getAttribute(UCOL_CASE_LEVEL, status)) {
570        JSObject::SetProperty(
571            resolved, factory->NewStringFromStaticChars("sensitivity"),
572            factory->NewStringFromStaticChars("case"), SLOPPY).Assert();
573      } else {
574        JSObject::SetProperty(
575            resolved, factory->NewStringFromStaticChars("sensitivity"),
576            factory->NewStringFromStaticChars("base"), SLOPPY).Assert();
577      }
578      break;
579    }
580    case UCOL_SECONDARY:
581      JSObject::SetProperty(
582          resolved, factory->NewStringFromStaticChars("strength"),
583          factory->NewStringFromStaticChars("secondary"), SLOPPY).Assert();
584      JSObject::SetProperty(
585          resolved, factory->NewStringFromStaticChars("sensitivity"),
586          factory->NewStringFromStaticChars("accent"), SLOPPY).Assert();
587      break;
588    case UCOL_TERTIARY:
589      JSObject::SetProperty(
590          resolved, factory->NewStringFromStaticChars("strength"),
591          factory->NewStringFromStaticChars("tertiary"), SLOPPY).Assert();
592      JSObject::SetProperty(
593          resolved, factory->NewStringFromStaticChars("sensitivity"),
594          factory->NewStringFromStaticChars("variant"), SLOPPY).Assert();
595      break;
596    case UCOL_QUATERNARY:
597      // We shouldn't get quaternary and identical from ICU, but if we do
598      // put them into variant.
599      JSObject::SetProperty(
600          resolved, factory->NewStringFromStaticChars("strength"),
601          factory->NewStringFromStaticChars("quaternary"), SLOPPY).Assert();
602      JSObject::SetProperty(
603          resolved, factory->NewStringFromStaticChars("sensitivity"),
604          factory->NewStringFromStaticChars("variant"), SLOPPY).Assert();
605      break;
606    default:
607      JSObject::SetProperty(
608          resolved, factory->NewStringFromStaticChars("strength"),
609          factory->NewStringFromStaticChars("identical"), SLOPPY).Assert();
610      JSObject::SetProperty(
611          resolved, factory->NewStringFromStaticChars("sensitivity"),
612          factory->NewStringFromStaticChars("variant"), SLOPPY).Assert();
613  }
614
615  JSObject::SetProperty(
616      resolved, factory->NewStringFromStaticChars("ignorePunctuation"),
617      factory->ToBoolean(collator->getAttribute(UCOL_ALTERNATE_HANDLING,
618                                                status) == UCOL_SHIFTED),
619      SLOPPY).Assert();
620
621  // Set the locale
622  char result[ULOC_FULLNAME_CAPACITY];
623  status = U_ZERO_ERROR;
624  uloc_toLanguageTag(
625      icu_locale.getName(), result, ULOC_FULLNAME_CAPACITY, FALSE, &status);
626  if (U_SUCCESS(status)) {
627    JSObject::SetProperty(resolved, factory->NewStringFromStaticChars("locale"),
628                          factory->NewStringFromAsciiChecked(result),
629                          SLOPPY).Assert();
630  } else {
631    // This would never happen, since we got the locale from ICU.
632    JSObject::SetProperty(resolved, factory->NewStringFromStaticChars("locale"),
633                          factory->NewStringFromStaticChars("und"),
634                          SLOPPY).Assert();
635  }
636}
637
638
639icu::BreakIterator* CreateICUBreakIterator(
640    Isolate* isolate,
641    const icu::Locale& icu_locale,
642    Handle<JSObject> options) {
643  UErrorCode status = U_ZERO_ERROR;
644  icu::BreakIterator* break_iterator = NULL;
645  icu::UnicodeString type;
646  if (!ExtractStringSetting(isolate, options, "type", &type)) return NULL;
647
648  if (type == UNICODE_STRING_SIMPLE("character")) {
649    break_iterator =
650      icu::BreakIterator::createCharacterInstance(icu_locale, status);
651  } else if (type == UNICODE_STRING_SIMPLE("sentence")) {
652    break_iterator =
653      icu::BreakIterator::createSentenceInstance(icu_locale, status);
654  } else if (type == UNICODE_STRING_SIMPLE("line")) {
655    break_iterator =
656      icu::BreakIterator::createLineInstance(icu_locale, status);
657  } else {
658    // Defualt is word iterator.
659    break_iterator =
660      icu::BreakIterator::createWordInstance(icu_locale, status);
661  }
662
663  if (U_FAILURE(status)) {
664    delete break_iterator;
665    return NULL;
666  }
667
668  isolate->CountUsage(v8::Isolate::UseCounterFeature::kBreakIterator);
669
670  return break_iterator;
671}
672
673
674void SetResolvedBreakIteratorSettings(Isolate* isolate,
675                                      const icu::Locale& icu_locale,
676                                      icu::BreakIterator* break_iterator,
677                                      Handle<JSObject> resolved) {
678  Factory* factory = isolate->factory();
679  UErrorCode status = U_ZERO_ERROR;
680
681  // Set the locale
682  char result[ULOC_FULLNAME_CAPACITY];
683  status = U_ZERO_ERROR;
684  uloc_toLanguageTag(
685      icu_locale.getName(), result, ULOC_FULLNAME_CAPACITY, FALSE, &status);
686  if (U_SUCCESS(status)) {
687    JSObject::SetProperty(resolved, factory->NewStringFromStaticChars("locale"),
688                          factory->NewStringFromAsciiChecked(result),
689                          SLOPPY).Assert();
690  } else {
691    // This would never happen, since we got the locale from ICU.
692    JSObject::SetProperty(resolved, factory->NewStringFromStaticChars("locale"),
693                          factory->NewStringFromStaticChars("und"),
694                          SLOPPY).Assert();
695  }
696}
697
698}  // namespace
699
700
701// static
702Handle<ObjectTemplateInfo> I18N::GetTemplate(Isolate* isolate) {
703  return GetEternal<1, i::EternalHandles::I18N_TEMPLATE_ONE>(isolate);
704}
705
706
707// static
708Handle<ObjectTemplateInfo> I18N::GetTemplate2(Isolate* isolate) {
709  return GetEternal<2, i::EternalHandles::I18N_TEMPLATE_TWO>(isolate);
710}
711
712
713// static
714icu::SimpleDateFormat* DateFormat::InitializeDateTimeFormat(
715    Isolate* isolate,
716    Handle<String> locale,
717    Handle<JSObject> options,
718    Handle<JSObject> resolved) {
719  // Convert BCP47 into ICU locale format.
720  UErrorCode status = U_ZERO_ERROR;
721  icu::Locale icu_locale;
722  char icu_result[ULOC_FULLNAME_CAPACITY];
723  int icu_length = 0;
724  v8::String::Utf8Value bcp47_locale(v8::Utils::ToLocal(locale));
725  if (bcp47_locale.length() != 0) {
726    uloc_forLanguageTag(*bcp47_locale, icu_result, ULOC_FULLNAME_CAPACITY,
727                        &icu_length, &status);
728    if (U_FAILURE(status) || icu_length == 0) {
729      return NULL;
730    }
731    icu_locale = icu::Locale(icu_result);
732  }
733
734  icu::SimpleDateFormat* date_format = CreateICUDateFormat(
735      isolate, icu_locale, options);
736  if (!date_format) {
737    // Remove extensions and try again.
738    icu::Locale no_extension_locale(icu_locale.getBaseName());
739    date_format = CreateICUDateFormat(isolate, no_extension_locale, options);
740
741    if (!date_format) {
742      FATAL("Failed to create ICU date format, are ICU data files missing?");
743    }
744
745    // Set resolved settings (pattern, numbering system, calendar).
746    SetResolvedDateSettings(
747        isolate, no_extension_locale, date_format, resolved);
748  } else {
749    SetResolvedDateSettings(isolate, icu_locale, date_format, resolved);
750  }
751
752  return date_format;
753}
754
755
756icu::SimpleDateFormat* DateFormat::UnpackDateFormat(
757    Isolate* isolate,
758    Handle<JSObject> obj) {
759  Handle<String> key =
760      isolate->factory()->NewStringFromStaticChars("dateFormat");
761  Maybe<bool> maybe = JSReceiver::HasOwnProperty(obj, key);
762  CHECK(maybe.IsJust());
763  if (maybe.FromJust()) {
764    return reinterpret_cast<icu::SimpleDateFormat*>(
765        obj->GetInternalField(0));
766  }
767
768  return NULL;
769}
770
771void DateFormat::DeleteDateFormat(const v8::WeakCallbackInfo<void>& data) {
772  delete reinterpret_cast<icu::SimpleDateFormat*>(data.GetInternalField(0));
773  GlobalHandles::Destroy(reinterpret_cast<Object**>(data.GetParameter()));
774}
775
776
777icu::DecimalFormat* NumberFormat::InitializeNumberFormat(
778    Isolate* isolate,
779    Handle<String> locale,
780    Handle<JSObject> options,
781    Handle<JSObject> resolved) {
782  // Convert BCP47 into ICU locale format.
783  UErrorCode status = U_ZERO_ERROR;
784  icu::Locale icu_locale;
785  char icu_result[ULOC_FULLNAME_CAPACITY];
786  int icu_length = 0;
787  v8::String::Utf8Value bcp47_locale(v8::Utils::ToLocal(locale));
788  if (bcp47_locale.length() != 0) {
789    uloc_forLanguageTag(*bcp47_locale, icu_result, ULOC_FULLNAME_CAPACITY,
790                        &icu_length, &status);
791    if (U_FAILURE(status) || icu_length == 0) {
792      return NULL;
793    }
794    icu_locale = icu::Locale(icu_result);
795  }
796
797  icu::DecimalFormat* number_format =
798      CreateICUNumberFormat(isolate, icu_locale, options);
799  if (!number_format) {
800    // Remove extensions and try again.
801    icu::Locale no_extension_locale(icu_locale.getBaseName());
802    number_format = CreateICUNumberFormat(
803        isolate, no_extension_locale, options);
804
805    if (!number_format) {
806      FATAL("Failed to create ICU number format, are ICU data files missing?");
807    }
808
809    // Set resolved settings (pattern, numbering system).
810    SetResolvedNumberSettings(
811        isolate, no_extension_locale, number_format, resolved);
812  } else {
813    SetResolvedNumberSettings(isolate, icu_locale, number_format, resolved);
814  }
815
816  return number_format;
817}
818
819
820icu::DecimalFormat* NumberFormat::UnpackNumberFormat(
821    Isolate* isolate,
822    Handle<JSObject> obj) {
823  Handle<String> key =
824      isolate->factory()->NewStringFromStaticChars("numberFormat");
825  Maybe<bool> maybe = JSReceiver::HasOwnProperty(obj, key);
826  CHECK(maybe.IsJust());
827  if (maybe.FromJust()) {
828    return reinterpret_cast<icu::DecimalFormat*>(obj->GetInternalField(0));
829  }
830
831  return NULL;
832}
833
834void NumberFormat::DeleteNumberFormat(const v8::WeakCallbackInfo<void>& data) {
835  delete reinterpret_cast<icu::DecimalFormat*>(data.GetInternalField(0));
836  GlobalHandles::Destroy(reinterpret_cast<Object**>(data.GetParameter()));
837}
838
839
840icu::Collator* Collator::InitializeCollator(
841    Isolate* isolate,
842    Handle<String> locale,
843    Handle<JSObject> options,
844    Handle<JSObject> resolved) {
845  // Convert BCP47 into ICU locale format.
846  UErrorCode status = U_ZERO_ERROR;
847  icu::Locale icu_locale;
848  char icu_result[ULOC_FULLNAME_CAPACITY];
849  int icu_length = 0;
850  v8::String::Utf8Value bcp47_locale(v8::Utils::ToLocal(locale));
851  if (bcp47_locale.length() != 0) {
852    uloc_forLanguageTag(*bcp47_locale, icu_result, ULOC_FULLNAME_CAPACITY,
853                        &icu_length, &status);
854    if (U_FAILURE(status) || icu_length == 0) {
855      return NULL;
856    }
857    icu_locale = icu::Locale(icu_result);
858  }
859
860  icu::Collator* collator = CreateICUCollator(isolate, icu_locale, options);
861  if (!collator) {
862    // Remove extensions and try again.
863    icu::Locale no_extension_locale(icu_locale.getBaseName());
864    collator = CreateICUCollator(isolate, no_extension_locale, options);
865
866    if (!collator) {
867      FATAL("Failed to create ICU collator, are ICU data files missing?");
868    }
869
870    // Set resolved settings (pattern, numbering system).
871    SetResolvedCollatorSettings(
872        isolate, no_extension_locale, collator, resolved);
873  } else {
874    SetResolvedCollatorSettings(isolate, icu_locale, collator, resolved);
875  }
876
877  return collator;
878}
879
880
881icu::Collator* Collator::UnpackCollator(Isolate* isolate,
882                                        Handle<JSObject> obj) {
883  Handle<String> key = isolate->factory()->NewStringFromStaticChars("collator");
884  Maybe<bool> maybe = JSReceiver::HasOwnProperty(obj, key);
885  CHECK(maybe.IsJust());
886  if (maybe.FromJust()) {
887    return reinterpret_cast<icu::Collator*>(obj->GetInternalField(0));
888  }
889
890  return NULL;
891}
892
893void Collator::DeleteCollator(const v8::WeakCallbackInfo<void>& data) {
894  delete reinterpret_cast<icu::Collator*>(data.GetInternalField(0));
895  GlobalHandles::Destroy(reinterpret_cast<Object**>(data.GetParameter()));
896}
897
898
899icu::BreakIterator* BreakIterator::InitializeBreakIterator(
900    Isolate* isolate,
901    Handle<String> locale,
902    Handle<JSObject> options,
903    Handle<JSObject> resolved) {
904  // Convert BCP47 into ICU locale format.
905  UErrorCode status = U_ZERO_ERROR;
906  icu::Locale icu_locale;
907  char icu_result[ULOC_FULLNAME_CAPACITY];
908  int icu_length = 0;
909  v8::String::Utf8Value bcp47_locale(v8::Utils::ToLocal(locale));
910  if (bcp47_locale.length() != 0) {
911    uloc_forLanguageTag(*bcp47_locale, icu_result, ULOC_FULLNAME_CAPACITY,
912                        &icu_length, &status);
913    if (U_FAILURE(status) || icu_length == 0) {
914      return NULL;
915    }
916    icu_locale = icu::Locale(icu_result);
917  }
918
919  icu::BreakIterator* break_iterator = CreateICUBreakIterator(
920      isolate, icu_locale, options);
921  if (!break_iterator) {
922    // Remove extensions and try again.
923    icu::Locale no_extension_locale(icu_locale.getBaseName());
924    break_iterator = CreateICUBreakIterator(
925        isolate, no_extension_locale, options);
926
927    if (!break_iterator) {
928      FATAL("Failed to create ICU break iterator, are ICU data files missing?");
929    }
930
931    // Set resolved settings (locale).
932    SetResolvedBreakIteratorSettings(
933        isolate, no_extension_locale, break_iterator, resolved);
934  } else {
935    SetResolvedBreakIteratorSettings(
936        isolate, icu_locale, break_iterator, resolved);
937  }
938
939  return break_iterator;
940}
941
942
943icu::BreakIterator* BreakIterator::UnpackBreakIterator(Isolate* isolate,
944                                                       Handle<JSObject> obj) {
945  Handle<String> key =
946      isolate->factory()->NewStringFromStaticChars("breakIterator");
947  Maybe<bool> maybe = JSReceiver::HasOwnProperty(obj, key);
948  CHECK(maybe.IsJust());
949  if (maybe.FromJust()) {
950    return reinterpret_cast<icu::BreakIterator*>(obj->GetInternalField(0));
951  }
952
953  return NULL;
954}
955
956void BreakIterator::DeleteBreakIterator(
957    const v8::WeakCallbackInfo<void>& data) {
958  delete reinterpret_cast<icu::BreakIterator*>(data.GetInternalField(0));
959  delete reinterpret_cast<icu::UnicodeString*>(data.GetInternalField(1));
960  GlobalHandles::Destroy(reinterpret_cast<Object**>(data.GetParameter()));
961}
962
963}  // namespace internal
964}  // namespace v8
965