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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 <memory>
9 
10 #include "src/api.h"
11 #include "src/factory.h"
12 #include "src/isolate.h"
13 #include "src/objects-inl.h"
14 #include "unicode/brkiter.h"
15 #include "unicode/calendar.h"
16 #include "unicode/coll.h"
17 #include "unicode/curramt.h"
18 #include "unicode/dcfmtsym.h"
19 #include "unicode/decimfmt.h"
20 #include "unicode/dtfmtsym.h"
21 #include "unicode/dtptngen.h"
22 #include "unicode/gregocal.h"
23 #include "unicode/locid.h"
24 #include "unicode/numfmt.h"
25 #include "unicode/numsys.h"
26 #include "unicode/rbbi.h"
27 #include "unicode/smpdtfmt.h"
28 #include "unicode/timezone.h"
29 #include "unicode/uchar.h"
30 #include "unicode/ucol.h"
31 #include "unicode/ucurr.h"
32 #include "unicode/unum.h"
33 #include "unicode/uvernum.h"
34 #include "unicode/uversion.h"
35 
36 #if U_ICU_VERSION_MAJOR_NUM >= 59
37 #include "unicode/char16ptr.h"
38 #endif
39 
40 namespace v8 {
41 namespace internal {
42 
43 namespace {
44 
ExtractStringSetting(Isolate * isolate,Handle<JSObject> options,const char * key,icu::UnicodeString * setting)45 bool ExtractStringSetting(Isolate* isolate,
46                           Handle<JSObject> options,
47                           const char* key,
48                           icu::UnicodeString* setting) {
49   Handle<String> str = isolate->factory()->NewStringFromAsciiChecked(key);
50   Handle<Object> object =
51       JSReceiver::GetProperty(options, str).ToHandleChecked();
52   if (object->IsString()) {
53     v8::String::Utf8Value utf8_string(
54         v8::Utils::ToLocal(Handle<String>::cast(object)));
55     *setting = icu::UnicodeString::fromUTF8(*utf8_string);
56     return true;
57   }
58   return false;
59 }
60 
61 
ExtractIntegerSetting(Isolate * isolate,Handle<JSObject> options,const char * key,int32_t * value)62 bool ExtractIntegerSetting(Isolate* isolate,
63                            Handle<JSObject> options,
64                            const char* key,
65                            int32_t* value) {
66   Handle<String> str = isolate->factory()->NewStringFromAsciiChecked(key);
67   Handle<Object> object =
68       JSReceiver::GetProperty(options, str).ToHandleChecked();
69   if (object->IsNumber()) {
70     object->ToInt32(value);
71     return true;
72   }
73   return false;
74 }
75 
76 
ExtractBooleanSetting(Isolate * isolate,Handle<JSObject> options,const char * key,bool * value)77 bool ExtractBooleanSetting(Isolate* isolate,
78                            Handle<JSObject> options,
79                            const char* key,
80                            bool* value) {
81   Handle<String> str = isolate->factory()->NewStringFromAsciiChecked(key);
82   Handle<Object> object =
83       JSReceiver::GetProperty(options, str).ToHandleChecked();
84   if (object->IsBoolean()) {
85     *value = object->BooleanValue();
86     return true;
87   }
88   return false;
89 }
90 
91 
CreateICUDateFormat(Isolate * isolate,const icu::Locale & icu_locale,Handle<JSObject> options)92 icu::SimpleDateFormat* CreateICUDateFormat(
93     Isolate* isolate,
94     const icu::Locale& icu_locale,
95     Handle<JSObject> options) {
96   // Create time zone as specified by the user. We have to re-create time zone
97   // since calendar takes ownership.
98   icu::TimeZone* tz = NULL;
99   icu::UnicodeString timezone;
100   if (ExtractStringSetting(isolate, options, "timeZone", &timezone)) {
101     tz = icu::TimeZone::createTimeZone(timezone);
102   } else {
103     tz = icu::TimeZone::createDefault();
104   }
105 
106   // Create a calendar using locale, and apply time zone to it.
107   UErrorCode status = U_ZERO_ERROR;
108   icu::Calendar* calendar =
109       icu::Calendar::createInstance(tz, icu_locale, status);
110 
111   if (calendar->getDynamicClassID() ==
112       icu::GregorianCalendar::getStaticClassID()) {
113     icu::GregorianCalendar* gc = (icu::GregorianCalendar*)calendar;
114     UErrorCode status = U_ZERO_ERROR;
115     // The beginning of ECMAScript time, namely -(2**53)
116     const double start_of_time = -9007199254740992;
117     gc->setGregorianChange(start_of_time, status);
118     DCHECK(U_SUCCESS(status));
119   }
120 
121   // Make formatter from skeleton. Calendar and numbering system are added
122   // to the locale as Unicode extension (if they were specified at all).
123   icu::SimpleDateFormat* date_format = NULL;
124   icu::UnicodeString skeleton;
125   if (ExtractStringSetting(isolate, options, "skeleton", &skeleton)) {
126     std::unique_ptr<icu::DateTimePatternGenerator> generator(
127         icu::DateTimePatternGenerator::createInstance(icu_locale, status));
128     icu::UnicodeString pattern;
129     if (U_SUCCESS(status))
130       pattern = generator->getBestPattern(skeleton, status);
131 
132     date_format = new icu::SimpleDateFormat(pattern, icu_locale, status);
133     if (U_SUCCESS(status)) {
134       date_format->adoptCalendar(calendar);
135     }
136   }
137 
138   if (U_FAILURE(status)) {
139     delete calendar;
140     delete date_format;
141     date_format = nullptr;
142   }
143 
144   return date_format;
145 }
146 
147 
SetResolvedDateSettings(Isolate * isolate,const icu::Locale & icu_locale,icu::SimpleDateFormat * date_format,Handle<JSObject> resolved)148 void SetResolvedDateSettings(Isolate* isolate,
149                              const icu::Locale& icu_locale,
150                              icu::SimpleDateFormat* date_format,
151                              Handle<JSObject> resolved) {
152   Factory* factory = isolate->factory();
153   UErrorCode status = U_ZERO_ERROR;
154   icu::UnicodeString pattern;
155   date_format->toPattern(pattern);
156   JSObject::SetProperty(
157       resolved, factory->intl_pattern_symbol(),
158       factory->NewStringFromTwoByte(
159                    Vector<const uint16_t>(
160                        reinterpret_cast<const uint16_t*>(pattern.getBuffer()),
161                        pattern.length())).ToHandleChecked(),
162       SLOPPY).Assert();
163 
164   // Set time zone and calendar.
165   const icu::Calendar* calendar = date_format->getCalendar();
166   // getType() returns legacy calendar type name instead of LDML/BCP47 calendar
167   // key values. i18n.js maps them to BCP47 values for key "ca".
168   // TODO(jshin): Consider doing it here, instead.
169   const char* calendar_name = calendar->getType();
170   JSObject::SetProperty(resolved, factory->NewStringFromStaticChars("calendar"),
171                         factory->NewStringFromAsciiChecked(calendar_name),
172                         SLOPPY).Assert();
173 
174   const icu::TimeZone& tz = calendar->getTimeZone();
175   icu::UnicodeString time_zone;
176   tz.getID(time_zone);
177 
178   icu::UnicodeString canonical_time_zone;
179   icu::TimeZone::getCanonicalID(time_zone, canonical_time_zone, status);
180   if (U_SUCCESS(status)) {
181     if (canonical_time_zone == UNICODE_STRING_SIMPLE("Etc/GMT")) {
182       JSObject::SetProperty(
183           resolved, factory->NewStringFromStaticChars("timeZone"),
184           factory->NewStringFromStaticChars("UTC"), SLOPPY).Assert();
185     } else {
186       JSObject::SetProperty(
187           resolved, factory->NewStringFromStaticChars("timeZone"),
188           factory->NewStringFromTwoByte(
189                        Vector<const uint16_t>(
190                            reinterpret_cast<const uint16_t*>(
191                                canonical_time_zone.getBuffer()),
192                            canonical_time_zone.length())).ToHandleChecked(),
193           SLOPPY).Assert();
194     }
195   }
196 
197   // Ugly hack. ICU doesn't expose numbering system in any way, so we have
198   // to assume that for given locale NumberingSystem constructor produces the
199   // same digits as NumberFormat/Calendar would.
200   status = U_ZERO_ERROR;
201   icu::NumberingSystem* numbering_system =
202       icu::NumberingSystem::createInstance(icu_locale, status);
203   if (U_SUCCESS(status)) {
204     const char* ns = numbering_system->getName();
205     JSObject::SetProperty(
206         resolved, factory->NewStringFromStaticChars("numberingSystem"),
207         factory->NewStringFromAsciiChecked(ns), SLOPPY).Assert();
208   } else {
209     JSObject::SetProperty(resolved,
210                           factory->NewStringFromStaticChars("numberingSystem"),
211                           factory->undefined_value(), SLOPPY).Assert();
212   }
213   delete numbering_system;
214 
215   // Set the locale
216   char result[ULOC_FULLNAME_CAPACITY];
217   status = U_ZERO_ERROR;
218   uloc_toLanguageTag(
219       icu_locale.getName(), result, ULOC_FULLNAME_CAPACITY, FALSE, &status);
220   if (U_SUCCESS(status)) {
221     JSObject::SetProperty(resolved, factory->NewStringFromStaticChars("locale"),
222                           factory->NewStringFromAsciiChecked(result),
223                           SLOPPY).Assert();
224   } else {
225     // This would never happen, since we got the locale from ICU.
226     JSObject::SetProperty(resolved, factory->NewStringFromStaticChars("locale"),
227                           factory->NewStringFromStaticChars("und"),
228                           SLOPPY).Assert();
229   }
230 }
231 
232 
CreateICUNumberFormat(Isolate * isolate,const icu::Locale & icu_locale,Handle<JSObject> options)233 icu::DecimalFormat* CreateICUNumberFormat(
234     Isolate* isolate,
235     const icu::Locale& icu_locale,
236     Handle<JSObject> options) {
237   // Make formatter from options. Numbering system is added
238   // to the locale as Unicode extension (if it was specified at all).
239   UErrorCode status = U_ZERO_ERROR;
240   icu::DecimalFormat* number_format = NULL;
241   icu::UnicodeString style;
242   icu::UnicodeString currency;
243   if (ExtractStringSetting(isolate, options, "style", &style)) {
244     if (style == UNICODE_STRING_SIMPLE("currency")) {
245       icu::UnicodeString display;
246       ExtractStringSetting(isolate, options, "currency", &currency);
247       ExtractStringSetting(isolate, options, "currencyDisplay", &display);
248 
249 #if (U_ICU_VERSION_MAJOR_NUM == 4) && (U_ICU_VERSION_MINOR_NUM <= 6)
250       icu::NumberFormat::EStyles format_style;
251       if (display == UNICODE_STRING_SIMPLE("code")) {
252         format_style = icu::NumberFormat::kIsoCurrencyStyle;
253       } else if (display == UNICODE_STRING_SIMPLE("name")) {
254         format_style = icu::NumberFormat::kPluralCurrencyStyle;
255       } else {
256         format_style = icu::NumberFormat::kCurrencyStyle;
257       }
258 #else  // ICU version is 4.8 or above (we ignore versions below 4.0).
259       UNumberFormatStyle format_style;
260       if (display == UNICODE_STRING_SIMPLE("code")) {
261         format_style = UNUM_CURRENCY_ISO;
262       } else if (display == UNICODE_STRING_SIMPLE("name")) {
263         format_style = UNUM_CURRENCY_PLURAL;
264       } else {
265         format_style = UNUM_CURRENCY;
266       }
267 #endif
268 
269       number_format = static_cast<icu::DecimalFormat*>(
270           icu::NumberFormat::createInstance(icu_locale, format_style, status));
271 
272       if (U_FAILURE(status)) {
273         delete number_format;
274         return NULL;
275       }
276 
277       UErrorCode status_digits = U_ZERO_ERROR;
278 #if U_ICU_VERSION_MAJOR_NUM >= 59
279       uint32_t fraction_digits = ucurr_getDefaultFractionDigits(
280           icu::toUCharPtr(currency.getTerminatedBuffer()), &status_digits);
281 #else
282       uint32_t fraction_digits = ucurr_getDefaultFractionDigits(
283           currency.getTerminatedBuffer(), &status_digits);
284 #endif
285       if (U_SUCCESS(status_digits)) {
286         number_format->setMinimumFractionDigits(fraction_digits);
287         number_format->setMaximumFractionDigits(fraction_digits);
288       } else {
289         // Set min & max to default values (previously in i18n.js)
290         number_format->setMinimumFractionDigits(0);
291         number_format->setMaximumFractionDigits(3);
292       }
293     } else if (style == UNICODE_STRING_SIMPLE("percent")) {
294       number_format = static_cast<icu::DecimalFormat*>(
295           icu::NumberFormat::createPercentInstance(icu_locale, status));
296       if (U_FAILURE(status)) {
297         delete number_format;
298         return NULL;
299       }
300       // Make sure 1.1% doesn't go into 2%.
301       number_format->setMinimumFractionDigits(1);
302     } else {
303       // Make a decimal instance by default.
304       number_format = static_cast<icu::DecimalFormat*>(
305           icu::NumberFormat::createInstance(icu_locale, status));
306     }
307   }
308 
309   if (U_FAILURE(status)) {
310     delete number_format;
311     return NULL;
312   }
313 
314   // Set all options.
315   if (!currency.isEmpty()) {
316     number_format->setCurrency(currency.getBuffer(), status);
317   }
318 
319   int32_t digits;
320   if (ExtractIntegerSetting(
321           isolate, options, "minimumIntegerDigits", &digits)) {
322     number_format->setMinimumIntegerDigits(digits);
323   }
324 
325   if (ExtractIntegerSetting(
326           isolate, options, "minimumFractionDigits", &digits)) {
327     number_format->setMinimumFractionDigits(digits);
328   }
329 
330   if (ExtractIntegerSetting(
331           isolate, options, "maximumFractionDigits", &digits)) {
332     number_format->setMaximumFractionDigits(digits);
333   }
334 
335   bool significant_digits_used = false;
336   if (ExtractIntegerSetting(
337           isolate, options, "minimumSignificantDigits", &digits)) {
338     number_format->setMinimumSignificantDigits(digits);
339     significant_digits_used = true;
340   }
341 
342   if (ExtractIntegerSetting(
343           isolate, options, "maximumSignificantDigits", &digits)) {
344     number_format->setMaximumSignificantDigits(digits);
345     significant_digits_used = true;
346   }
347 
348   number_format->setSignificantDigitsUsed(significant_digits_used);
349 
350   bool grouping;
351   if (ExtractBooleanSetting(isolate, options, "useGrouping", &grouping)) {
352     number_format->setGroupingUsed(grouping);
353   }
354 
355   // Set rounding mode.
356   number_format->setRoundingMode(icu::DecimalFormat::kRoundHalfUp);
357 
358   return number_format;
359 }
360 
361 
SetResolvedNumberSettings(Isolate * isolate,const icu::Locale & icu_locale,icu::DecimalFormat * number_format,Handle<JSObject> resolved)362 void SetResolvedNumberSettings(Isolate* isolate,
363                                const icu::Locale& icu_locale,
364                                icu::DecimalFormat* number_format,
365                                Handle<JSObject> resolved) {
366   Factory* factory = isolate->factory();
367   icu::UnicodeString pattern;
368   number_format->toPattern(pattern);
369   JSObject::SetProperty(
370       resolved, factory->intl_pattern_symbol(),
371       factory->NewStringFromTwoByte(
372                    Vector<const uint16_t>(
373                        reinterpret_cast<const uint16_t*>(pattern.getBuffer()),
374                        pattern.length())).ToHandleChecked(),
375       SLOPPY).Assert();
376 
377   // Set resolved currency code in options.currency if not empty.
378   icu::UnicodeString currency(number_format->getCurrency());
379   if (!currency.isEmpty()) {
380     JSObject::SetProperty(
381         resolved, factory->NewStringFromStaticChars("currency"),
382         factory->NewStringFromTwoByte(Vector<const uint16_t>(
383                                           reinterpret_cast<const uint16_t*>(
384                                               currency.getBuffer()),
385                                           currency.length())).ToHandleChecked(),
386         SLOPPY).Assert();
387   }
388 
389   // Ugly hack. ICU doesn't expose numbering system in any way, so we have
390   // to assume that for given locale NumberingSystem constructor produces the
391   // same digits as NumberFormat/Calendar would.
392   UErrorCode status = U_ZERO_ERROR;
393   icu::NumberingSystem* numbering_system =
394       icu::NumberingSystem::createInstance(icu_locale, status);
395   if (U_SUCCESS(status)) {
396     const char* ns = numbering_system->getName();
397     JSObject::SetProperty(
398         resolved, factory->NewStringFromStaticChars("numberingSystem"),
399         factory->NewStringFromAsciiChecked(ns), SLOPPY).Assert();
400   } else {
401     JSObject::SetProperty(resolved,
402                           factory->NewStringFromStaticChars("numberingSystem"),
403                           factory->undefined_value(), SLOPPY).Assert();
404   }
405   delete numbering_system;
406 
407   JSObject::SetProperty(
408       resolved, factory->NewStringFromStaticChars("useGrouping"),
409       factory->ToBoolean(number_format->isGroupingUsed()), SLOPPY).Assert();
410 
411   JSObject::SetProperty(
412       resolved, factory->NewStringFromStaticChars("minimumIntegerDigits"),
413       factory->NewNumberFromInt(number_format->getMinimumIntegerDigits()),
414       SLOPPY).Assert();
415 
416   JSObject::SetProperty(
417       resolved, factory->NewStringFromStaticChars("minimumFractionDigits"),
418       factory->NewNumberFromInt(number_format->getMinimumFractionDigits()),
419       SLOPPY).Assert();
420 
421   JSObject::SetProperty(
422       resolved, factory->NewStringFromStaticChars("maximumFractionDigits"),
423       factory->NewNumberFromInt(number_format->getMaximumFractionDigits()),
424       SLOPPY).Assert();
425 
426   Handle<String> key =
427       factory->NewStringFromStaticChars("minimumSignificantDigits");
428   Maybe<bool> maybe = JSReceiver::HasOwnProperty(resolved, key);
429   CHECK(maybe.IsJust());
430   if (maybe.FromJust()) {
431     JSObject::SetProperty(
432         resolved, factory->NewStringFromStaticChars("minimumSignificantDigits"),
433         factory->NewNumberFromInt(number_format->getMinimumSignificantDigits()),
434         SLOPPY).Assert();
435   }
436 
437   key = factory->NewStringFromStaticChars("maximumSignificantDigits");
438   maybe = JSReceiver::HasOwnProperty(resolved, key);
439   CHECK(maybe.IsJust());
440   if (maybe.FromJust()) {
441     JSObject::SetProperty(
442         resolved, factory->NewStringFromStaticChars("maximumSignificantDigits"),
443         factory->NewNumberFromInt(number_format->getMaximumSignificantDigits()),
444         SLOPPY).Assert();
445   }
446 
447   // Set the locale
448   char result[ULOC_FULLNAME_CAPACITY];
449   status = U_ZERO_ERROR;
450   uloc_toLanguageTag(
451       icu_locale.getName(), result, ULOC_FULLNAME_CAPACITY, FALSE, &status);
452   if (U_SUCCESS(status)) {
453     JSObject::SetProperty(resolved, factory->NewStringFromStaticChars("locale"),
454                           factory->NewStringFromAsciiChecked(result),
455                           SLOPPY).Assert();
456   } else {
457     // This would never happen, since we got the locale from ICU.
458     JSObject::SetProperty(resolved, factory->NewStringFromStaticChars("locale"),
459                           factory->NewStringFromStaticChars("und"),
460                           SLOPPY).Assert();
461   }
462 }
463 
464 
CreateICUCollator(Isolate * isolate,const icu::Locale & icu_locale,Handle<JSObject> options)465 icu::Collator* CreateICUCollator(
466     Isolate* isolate,
467     const icu::Locale& icu_locale,
468     Handle<JSObject> options) {
469   // Make collator from options.
470   icu::Collator* collator = NULL;
471   UErrorCode status = U_ZERO_ERROR;
472   collator = icu::Collator::createInstance(icu_locale, status);
473 
474   if (U_FAILURE(status)) {
475     delete collator;
476     return NULL;
477   }
478 
479   // Set flags first, and then override them with sensitivity if necessary.
480   bool numeric;
481   if (ExtractBooleanSetting(isolate, options, "numeric", &numeric)) {
482     collator->setAttribute(
483         UCOL_NUMERIC_COLLATION, numeric ? UCOL_ON : UCOL_OFF, status);
484   }
485 
486   // Normalization is always on, by the spec. We are free to optimize
487   // if the strings are already normalized (but we don't have a way to tell
488   // that right now).
489   collator->setAttribute(UCOL_NORMALIZATION_MODE, UCOL_ON, status);
490 
491   icu::UnicodeString case_first;
492   if (ExtractStringSetting(isolate, options, "caseFirst", &case_first)) {
493     if (case_first == UNICODE_STRING_SIMPLE("upper")) {
494       collator->setAttribute(UCOL_CASE_FIRST, UCOL_UPPER_FIRST, status);
495     } else if (case_first == UNICODE_STRING_SIMPLE("lower")) {
496       collator->setAttribute(UCOL_CASE_FIRST, UCOL_LOWER_FIRST, status);
497     } else {
498       // Default (false/off).
499       collator->setAttribute(UCOL_CASE_FIRST, UCOL_OFF, status);
500     }
501   }
502 
503   icu::UnicodeString sensitivity;
504   if (ExtractStringSetting(isolate, options, "sensitivity", &sensitivity)) {
505     if (sensitivity == UNICODE_STRING_SIMPLE("base")) {
506       collator->setStrength(icu::Collator::PRIMARY);
507     } else if (sensitivity == UNICODE_STRING_SIMPLE("accent")) {
508       collator->setStrength(icu::Collator::SECONDARY);
509     } else if (sensitivity == UNICODE_STRING_SIMPLE("case")) {
510       collator->setStrength(icu::Collator::PRIMARY);
511       collator->setAttribute(UCOL_CASE_LEVEL, UCOL_ON, status);
512     } else {
513       // variant (default)
514       collator->setStrength(icu::Collator::TERTIARY);
515     }
516   }
517 
518   bool ignore;
519   if (ExtractBooleanSetting(isolate, options, "ignorePunctuation", &ignore)) {
520     if (ignore) {
521       collator->setAttribute(UCOL_ALTERNATE_HANDLING, UCOL_SHIFTED, status);
522     }
523   }
524 
525   return collator;
526 }
527 
528 
SetResolvedCollatorSettings(Isolate * isolate,const icu::Locale & icu_locale,icu::Collator * collator,Handle<JSObject> resolved)529 void SetResolvedCollatorSettings(Isolate* isolate,
530                                  const icu::Locale& icu_locale,
531                                  icu::Collator* collator,
532                                  Handle<JSObject> resolved) {
533   Factory* factory = isolate->factory();
534   UErrorCode status = U_ZERO_ERROR;
535 
536   JSObject::SetProperty(
537       resolved, factory->NewStringFromStaticChars("numeric"),
538       factory->ToBoolean(
539           collator->getAttribute(UCOL_NUMERIC_COLLATION, status) == UCOL_ON),
540       SLOPPY).Assert();
541 
542   switch (collator->getAttribute(UCOL_CASE_FIRST, status)) {
543     case UCOL_LOWER_FIRST:
544       JSObject::SetProperty(
545           resolved, factory->NewStringFromStaticChars("caseFirst"),
546           factory->NewStringFromStaticChars("lower"), SLOPPY).Assert();
547       break;
548     case UCOL_UPPER_FIRST:
549       JSObject::SetProperty(
550           resolved, factory->NewStringFromStaticChars("caseFirst"),
551           factory->NewStringFromStaticChars("upper"), SLOPPY).Assert();
552       break;
553     default:
554       JSObject::SetProperty(
555           resolved, factory->NewStringFromStaticChars("caseFirst"),
556           factory->NewStringFromStaticChars("false"), SLOPPY).Assert();
557   }
558 
559   switch (collator->getAttribute(UCOL_STRENGTH, status)) {
560     case UCOL_PRIMARY: {
561       JSObject::SetProperty(
562           resolved, factory->NewStringFromStaticChars("strength"),
563           factory->NewStringFromStaticChars("primary"), SLOPPY).Assert();
564 
565       // case level: true + s1 -> case, s1 -> base.
566       if (UCOL_ON == collator->getAttribute(UCOL_CASE_LEVEL, status)) {
567         JSObject::SetProperty(
568             resolved, factory->NewStringFromStaticChars("sensitivity"),
569             factory->NewStringFromStaticChars("case"), SLOPPY).Assert();
570       } else {
571         JSObject::SetProperty(
572             resolved, factory->NewStringFromStaticChars("sensitivity"),
573             factory->NewStringFromStaticChars("base"), SLOPPY).Assert();
574       }
575       break;
576     }
577     case UCOL_SECONDARY:
578       JSObject::SetProperty(
579           resolved, factory->NewStringFromStaticChars("strength"),
580           factory->NewStringFromStaticChars("secondary"), SLOPPY).Assert();
581       JSObject::SetProperty(
582           resolved, factory->NewStringFromStaticChars("sensitivity"),
583           factory->NewStringFromStaticChars("accent"), SLOPPY).Assert();
584       break;
585     case UCOL_TERTIARY:
586       JSObject::SetProperty(
587           resolved, factory->NewStringFromStaticChars("strength"),
588           factory->NewStringFromStaticChars("tertiary"), SLOPPY).Assert();
589       JSObject::SetProperty(
590           resolved, factory->NewStringFromStaticChars("sensitivity"),
591           factory->NewStringFromStaticChars("variant"), SLOPPY).Assert();
592       break;
593     case UCOL_QUATERNARY:
594       // We shouldn't get quaternary and identical from ICU, but if we do
595       // put them into variant.
596       JSObject::SetProperty(
597           resolved, factory->NewStringFromStaticChars("strength"),
598           factory->NewStringFromStaticChars("quaternary"), SLOPPY).Assert();
599       JSObject::SetProperty(
600           resolved, factory->NewStringFromStaticChars("sensitivity"),
601           factory->NewStringFromStaticChars("variant"), SLOPPY).Assert();
602       break;
603     default:
604       JSObject::SetProperty(
605           resolved, factory->NewStringFromStaticChars("strength"),
606           factory->NewStringFromStaticChars("identical"), SLOPPY).Assert();
607       JSObject::SetProperty(
608           resolved, factory->NewStringFromStaticChars("sensitivity"),
609           factory->NewStringFromStaticChars("variant"), SLOPPY).Assert();
610   }
611 
612   JSObject::SetProperty(
613       resolved, factory->NewStringFromStaticChars("ignorePunctuation"),
614       factory->ToBoolean(collator->getAttribute(UCOL_ALTERNATE_HANDLING,
615                                                 status) == UCOL_SHIFTED),
616       SLOPPY).Assert();
617 
618   // Set the locale
619   char result[ULOC_FULLNAME_CAPACITY];
620   status = U_ZERO_ERROR;
621   uloc_toLanguageTag(
622       icu_locale.getName(), result, ULOC_FULLNAME_CAPACITY, FALSE, &status);
623   if (U_SUCCESS(status)) {
624     JSObject::SetProperty(resolved, factory->NewStringFromStaticChars("locale"),
625                           factory->NewStringFromAsciiChecked(result),
626                           SLOPPY).Assert();
627   } else {
628     // This would never happen, since we got the locale from ICU.
629     JSObject::SetProperty(resolved, factory->NewStringFromStaticChars("locale"),
630                           factory->NewStringFromStaticChars("und"),
631                           SLOPPY).Assert();
632   }
633 }
634 
635 
CreateICUBreakIterator(Isolate * isolate,const icu::Locale & icu_locale,Handle<JSObject> options)636 icu::BreakIterator* CreateICUBreakIterator(
637     Isolate* isolate,
638     const icu::Locale& icu_locale,
639     Handle<JSObject> options) {
640   UErrorCode status = U_ZERO_ERROR;
641   icu::BreakIterator* break_iterator = NULL;
642   icu::UnicodeString type;
643   if (!ExtractStringSetting(isolate, options, "type", &type)) return NULL;
644 
645   if (type == UNICODE_STRING_SIMPLE("character")) {
646     break_iterator =
647       icu::BreakIterator::createCharacterInstance(icu_locale, status);
648   } else if (type == UNICODE_STRING_SIMPLE("sentence")) {
649     break_iterator =
650       icu::BreakIterator::createSentenceInstance(icu_locale, status);
651   } else if (type == UNICODE_STRING_SIMPLE("line")) {
652     break_iterator =
653       icu::BreakIterator::createLineInstance(icu_locale, status);
654   } else {
655     // Defualt is word iterator.
656     break_iterator =
657       icu::BreakIterator::createWordInstance(icu_locale, status);
658   }
659 
660   if (U_FAILURE(status)) {
661     delete break_iterator;
662     return NULL;
663   }
664 
665   isolate->CountUsage(v8::Isolate::UseCounterFeature::kBreakIterator);
666 
667   return break_iterator;
668 }
669 
670 
SetResolvedBreakIteratorSettings(Isolate * isolate,const icu::Locale & icu_locale,icu::BreakIterator * break_iterator,Handle<JSObject> resolved)671 void SetResolvedBreakIteratorSettings(Isolate* isolate,
672                                       const icu::Locale& icu_locale,
673                                       icu::BreakIterator* break_iterator,
674                                       Handle<JSObject> resolved) {
675   Factory* factory = isolate->factory();
676   UErrorCode status = U_ZERO_ERROR;
677 
678   // Set the locale
679   char result[ULOC_FULLNAME_CAPACITY];
680   status = U_ZERO_ERROR;
681   uloc_toLanguageTag(
682       icu_locale.getName(), result, ULOC_FULLNAME_CAPACITY, FALSE, &status);
683   if (U_SUCCESS(status)) {
684     JSObject::SetProperty(resolved, factory->NewStringFromStaticChars("locale"),
685                           factory->NewStringFromAsciiChecked(result),
686                           SLOPPY).Assert();
687   } else {
688     // This would never happen, since we got the locale from ICU.
689     JSObject::SetProperty(resolved, factory->NewStringFromStaticChars("locale"),
690                           factory->NewStringFromStaticChars("und"),
691                           SLOPPY).Assert();
692   }
693 }
694 
695 }  // namespace
696 
697 
698 // static
InitializeDateTimeFormat(Isolate * isolate,Handle<String> locale,Handle<JSObject> options,Handle<JSObject> resolved)699 icu::SimpleDateFormat* DateFormat::InitializeDateTimeFormat(
700     Isolate* isolate,
701     Handle<String> locale,
702     Handle<JSObject> options,
703     Handle<JSObject> resolved) {
704   // Convert BCP47 into ICU locale format.
705   UErrorCode status = U_ZERO_ERROR;
706   icu::Locale icu_locale;
707   char icu_result[ULOC_FULLNAME_CAPACITY];
708   int icu_length = 0;
709   v8::String::Utf8Value bcp47_locale(v8::Utils::ToLocal(locale));
710   if (bcp47_locale.length() != 0) {
711     uloc_forLanguageTag(*bcp47_locale, icu_result, ULOC_FULLNAME_CAPACITY,
712                         &icu_length, &status);
713     if (U_FAILURE(status) || icu_length == 0) {
714       return NULL;
715     }
716     icu_locale = icu::Locale(icu_result);
717   }
718 
719   icu::SimpleDateFormat* date_format = CreateICUDateFormat(
720       isolate, icu_locale, options);
721   if (!date_format) {
722     // Remove extensions and try again.
723     icu::Locale no_extension_locale(icu_locale.getBaseName());
724     date_format = CreateICUDateFormat(isolate, no_extension_locale, options);
725 
726     if (!date_format) {
727       FATAL("Failed to create ICU date format, are ICU data files missing?");
728     }
729 
730     // Set resolved settings (pattern, numbering system, calendar).
731     SetResolvedDateSettings(
732         isolate, no_extension_locale, date_format, resolved);
733   } else {
734     SetResolvedDateSettings(isolate, icu_locale, date_format, resolved);
735   }
736 
737   return date_format;
738 }
739 
740 
UnpackDateFormat(Isolate * isolate,Handle<JSObject> obj)741 icu::SimpleDateFormat* DateFormat::UnpackDateFormat(
742     Isolate* isolate,
743     Handle<JSObject> obj) {
744   return reinterpret_cast<icu::SimpleDateFormat*>(obj->GetInternalField(0));
745 }
746 
DeleteDateFormat(const v8::WeakCallbackInfo<void> & data)747 void DateFormat::DeleteDateFormat(const v8::WeakCallbackInfo<void>& data) {
748   delete reinterpret_cast<icu::SimpleDateFormat*>(data.GetInternalField(0));
749   GlobalHandles::Destroy(reinterpret_cast<Object**>(data.GetParameter()));
750 }
751 
752 
InitializeNumberFormat(Isolate * isolate,Handle<String> locale,Handle<JSObject> options,Handle<JSObject> resolved)753 icu::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     if (!number_format) {
782       FATAL("Failed to create ICU number format, are ICU data files missing?");
783     }
784 
785     // Set resolved settings (pattern, numbering system).
786     SetResolvedNumberSettings(
787         isolate, no_extension_locale, number_format, resolved);
788   } else {
789     SetResolvedNumberSettings(isolate, icu_locale, number_format, resolved);
790   }
791 
792   return number_format;
793 }
794 
795 
UnpackNumberFormat(Isolate * isolate,Handle<JSObject> obj)796 icu::DecimalFormat* NumberFormat::UnpackNumberFormat(
797     Isolate* isolate,
798     Handle<JSObject> obj) {
799   return reinterpret_cast<icu::DecimalFormat*>(obj->GetInternalField(0));
800 }
801 
DeleteNumberFormat(const v8::WeakCallbackInfo<void> & data)802 void NumberFormat::DeleteNumberFormat(const v8::WeakCallbackInfo<void>& data) {
803   delete reinterpret_cast<icu::DecimalFormat*>(data.GetInternalField(0));
804   GlobalHandles::Destroy(reinterpret_cast<Object**>(data.GetParameter()));
805 }
806 
807 
InitializeCollator(Isolate * isolate,Handle<String> locale,Handle<JSObject> options,Handle<JSObject> resolved)808 icu::Collator* Collator::InitializeCollator(
809     Isolate* isolate,
810     Handle<String> locale,
811     Handle<JSObject> options,
812     Handle<JSObject> resolved) {
813   // Convert BCP47 into ICU locale format.
814   UErrorCode status = U_ZERO_ERROR;
815   icu::Locale icu_locale;
816   char icu_result[ULOC_FULLNAME_CAPACITY];
817   int icu_length = 0;
818   v8::String::Utf8Value bcp47_locale(v8::Utils::ToLocal(locale));
819   if (bcp47_locale.length() != 0) {
820     uloc_forLanguageTag(*bcp47_locale, icu_result, ULOC_FULLNAME_CAPACITY,
821                         &icu_length, &status);
822     if (U_FAILURE(status) || icu_length == 0) {
823       return NULL;
824     }
825     icu_locale = icu::Locale(icu_result);
826   }
827 
828   icu::Collator* collator = CreateICUCollator(isolate, icu_locale, options);
829   if (!collator) {
830     // Remove extensions and try again.
831     icu::Locale no_extension_locale(icu_locale.getBaseName());
832     collator = CreateICUCollator(isolate, no_extension_locale, options);
833 
834     if (!collator) {
835       FATAL("Failed to create ICU collator, are ICU data files missing?");
836     }
837 
838     // Set resolved settings (pattern, numbering system).
839     SetResolvedCollatorSettings(
840         isolate, no_extension_locale, collator, resolved);
841   } else {
842     SetResolvedCollatorSettings(isolate, icu_locale, collator, resolved);
843   }
844 
845   return collator;
846 }
847 
848 
UnpackCollator(Isolate * isolate,Handle<JSObject> obj)849 icu::Collator* Collator::UnpackCollator(Isolate* isolate,
850                                         Handle<JSObject> obj) {
851   return reinterpret_cast<icu::Collator*>(obj->GetInternalField(0));
852 }
853 
DeleteCollator(const v8::WeakCallbackInfo<void> & data)854 void Collator::DeleteCollator(const v8::WeakCallbackInfo<void>& data) {
855   delete reinterpret_cast<icu::Collator*>(data.GetInternalField(0));
856   GlobalHandles::Destroy(reinterpret_cast<Object**>(data.GetParameter()));
857 }
858 
InitializeBreakIterator(Isolate * isolate,Handle<String> locale,Handle<JSObject> options,Handle<JSObject> resolved)859 icu::BreakIterator* V8BreakIterator::InitializeBreakIterator(
860     Isolate* isolate, Handle<String> locale, Handle<JSObject> options,
861     Handle<JSObject> resolved) {
862   // Convert BCP47 into ICU locale format.
863   UErrorCode status = U_ZERO_ERROR;
864   icu::Locale icu_locale;
865   char icu_result[ULOC_FULLNAME_CAPACITY];
866   int icu_length = 0;
867   v8::String::Utf8Value bcp47_locale(v8::Utils::ToLocal(locale));
868   if (bcp47_locale.length() != 0) {
869     uloc_forLanguageTag(*bcp47_locale, icu_result, ULOC_FULLNAME_CAPACITY,
870                         &icu_length, &status);
871     if (U_FAILURE(status) || icu_length == 0) {
872       return NULL;
873     }
874     icu_locale = icu::Locale(icu_result);
875   }
876 
877   icu::BreakIterator* break_iterator = CreateICUBreakIterator(
878       isolate, icu_locale, options);
879   if (!break_iterator) {
880     // Remove extensions and try again.
881     icu::Locale no_extension_locale(icu_locale.getBaseName());
882     break_iterator = CreateICUBreakIterator(
883         isolate, no_extension_locale, options);
884 
885     if (!break_iterator) {
886       FATAL("Failed to create ICU break iterator, are ICU data files missing?");
887     }
888 
889     // Set resolved settings (locale).
890     SetResolvedBreakIteratorSettings(
891         isolate, no_extension_locale, break_iterator, resolved);
892   } else {
893     SetResolvedBreakIteratorSettings(
894         isolate, icu_locale, break_iterator, resolved);
895   }
896 
897   return break_iterator;
898 }
899 
UnpackBreakIterator(Isolate * isolate,Handle<JSObject> obj)900 icu::BreakIterator* V8BreakIterator::UnpackBreakIterator(Isolate* isolate,
901                                                          Handle<JSObject> obj) {
902   return reinterpret_cast<icu::BreakIterator*>(obj->GetInternalField(0));
903 }
904 
DeleteBreakIterator(const v8::WeakCallbackInfo<void> & data)905 void V8BreakIterator::DeleteBreakIterator(
906     const v8::WeakCallbackInfo<void>& data) {
907   delete reinterpret_cast<icu::BreakIterator*>(data.GetInternalField(0));
908   delete reinterpret_cast<icu::UnicodeString*>(data.GetInternalField(1));
909   GlobalHandles::Destroy(reinterpret_cast<Object**>(data.GetParameter()));
910 }
911 
912 }  // namespace internal
913 }  // namespace v8
914