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