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Side by Side Diff: src/runtime/runtime-i18n.cc

Issue 597943003: Move i18n-related runtime functions into a separate file. (Closed) Base URL: https://v8.googlecode.com/svn/branches/bleeding_edge
Patch Set: adapt check-name-clashes.py Created 6 years, 2 months ago
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1 // Copyright 2014 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
5
6 #ifdef V8_I18N_SUPPORT
7 #include "src/v8.h"
8
9 #include "src/arguments.h"
10 #include "src/i18n.h"
11 #include "src/runtime/runtime.h"
12 #include "src/runtime/runtime-utils.h"
13
14 #include "unicode/brkiter.h"
15 #include "unicode/calendar.h"
16 #include "unicode/coll.h"
17 #include "unicode/curramt.h"
18 #include "unicode/datefmt.h"
19 #include "unicode/dcfmtsym.h"
20 #include "unicode/decimfmt.h"
21 #include "unicode/dtfmtsym.h"
22 #include "unicode/dtptngen.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/uloc.h"
33 #include "unicode/unum.h"
34 #include "unicode/uversion.h"
35
36
37 namespace v8 {
38 namespace internal {
39
40 RUNTIME_FUNCTION(Runtime_CanonicalizeLanguageTag) {
41 HandleScope scope(isolate);
42 Factory* factory = isolate->factory();
43
44 DCHECK(args.length() == 1);
45 CONVERT_ARG_HANDLE_CHECKED(String, locale_id_str, 0);
46
47 v8::String::Utf8Value locale_id(v8::Utils::ToLocal(locale_id_str));
48
49 // Return value which denotes invalid language tag.
50 const char* const kInvalidTag = "invalid-tag";
51
52 UErrorCode error = U_ZERO_ERROR;
53 char icu_result[ULOC_FULLNAME_CAPACITY];
54 int icu_length = 0;
55
56 uloc_forLanguageTag(*locale_id, icu_result, ULOC_FULLNAME_CAPACITY,
57 &icu_length, &error);
58 if (U_FAILURE(error) || icu_length == 0) {
59 return *factory->NewStringFromAsciiChecked(kInvalidTag);
60 }
61
62 char result[ULOC_FULLNAME_CAPACITY];
63
64 // Force strict BCP47 rules.
65 uloc_toLanguageTag(icu_result, result, ULOC_FULLNAME_CAPACITY, TRUE, &error);
66
67 if (U_FAILURE(error)) {
68 return *factory->NewStringFromAsciiChecked(kInvalidTag);
69 }
70
71 return *factory->NewStringFromAsciiChecked(result);
72 }
73
74
75 RUNTIME_FUNCTION(Runtime_AvailableLocalesOf) {
76 HandleScope scope(isolate);
77 Factory* factory = isolate->factory();
78
79 DCHECK(args.length() == 1);
80 CONVERT_ARG_HANDLE_CHECKED(String, service, 0);
81
82 const icu::Locale* available_locales = NULL;
83 int32_t count = 0;
84
85 if (service->IsUtf8EqualTo(CStrVector("collator"))) {
86 available_locales = icu::Collator::getAvailableLocales(count);
87 } else if (service->IsUtf8EqualTo(CStrVector("numberformat"))) {
88 available_locales = icu::NumberFormat::getAvailableLocales(count);
89 } else if (service->IsUtf8EqualTo(CStrVector("dateformat"))) {
90 available_locales = icu::DateFormat::getAvailableLocales(count);
91 } else if (service->IsUtf8EqualTo(CStrVector("breakiterator"))) {
92 available_locales = icu::BreakIterator::getAvailableLocales(count);
93 }
94
95 UErrorCode error = U_ZERO_ERROR;
96 char result[ULOC_FULLNAME_CAPACITY];
97 Handle<JSObject> locales = factory->NewJSObject(isolate->object_function());
98
99 for (int32_t i = 0; i < count; ++i) {
100 const char* icu_name = available_locales[i].getName();
101
102 error = U_ZERO_ERROR;
103 // No need to force strict BCP47 rules.
104 uloc_toLanguageTag(icu_name, result, ULOC_FULLNAME_CAPACITY, FALSE, &error);
105 if (U_FAILURE(error)) {
106 // This shouldn't happen, but lets not break the user.
107 continue;
108 }
109
110 RETURN_FAILURE_ON_EXCEPTION(
111 isolate, JSObject::SetOwnPropertyIgnoreAttributes(
112 locales, factory->NewStringFromAsciiChecked(result),
113 factory->NewNumber(i), NONE));
114 }
115
116 return *locales;
117 }
118
119
120 RUNTIME_FUNCTION(Runtime_GetDefaultICULocale) {
121 HandleScope scope(isolate);
122 Factory* factory = isolate->factory();
123
124 DCHECK(args.length() == 0);
125
126 icu::Locale default_locale;
127
128 // Set the locale
129 char result[ULOC_FULLNAME_CAPACITY];
130 UErrorCode status = U_ZERO_ERROR;
131 uloc_toLanguageTag(default_locale.getName(), result, ULOC_FULLNAME_CAPACITY,
132 FALSE, &status);
133 if (U_SUCCESS(status)) {
134 return *factory->NewStringFromAsciiChecked(result);
135 }
136
137 return *factory->NewStringFromStaticChars("und");
138 }
139
140
141 RUNTIME_FUNCTION(Runtime_GetLanguageTagVariants) {
142 HandleScope scope(isolate);
143 Factory* factory = isolate->factory();
144
145 DCHECK(args.length() == 1);
146
147 CONVERT_ARG_HANDLE_CHECKED(JSArray, input, 0);
148
149 uint32_t length = static_cast<uint32_t>(input->length()->Number());
150 // Set some limit to prevent fuzz tests from going OOM.
151 // Can be bumped when callers' requirements change.
152 RUNTIME_ASSERT(length < 100);
153 Handle<FixedArray> output = factory->NewFixedArray(length);
154 Handle<Name> maximized = factory->NewStringFromStaticChars("maximized");
155 Handle<Name> base = factory->NewStringFromStaticChars("base");
156 for (unsigned int i = 0; i < length; ++i) {
157 Handle<Object> locale_id;
158 ASSIGN_RETURN_FAILURE_ON_EXCEPTION(isolate, locale_id,
159 Object::GetElement(isolate, input, i));
160 if (!locale_id->IsString()) {
161 return isolate->Throw(*factory->illegal_argument_string());
162 }
163
164 v8::String::Utf8Value utf8_locale_id(
165 v8::Utils::ToLocal(Handle<String>::cast(locale_id)));
166
167 UErrorCode error = U_ZERO_ERROR;
168
169 // Convert from BCP47 to ICU format.
170 // de-DE-u-co-phonebk -> de_DE@collation=phonebook
171 char icu_locale[ULOC_FULLNAME_CAPACITY];
172 int icu_locale_length = 0;
173 uloc_forLanguageTag(*utf8_locale_id, icu_locale, ULOC_FULLNAME_CAPACITY,
174 &icu_locale_length, &error);
175 if (U_FAILURE(error) || icu_locale_length == 0) {
176 return isolate->Throw(*factory->illegal_argument_string());
177 }
178
179 // Maximize the locale.
180 // de_DE@collation=phonebook -> de_Latn_DE@collation=phonebook
181 char icu_max_locale[ULOC_FULLNAME_CAPACITY];
182 uloc_addLikelySubtags(icu_locale, icu_max_locale, ULOC_FULLNAME_CAPACITY,
183 &error);
184
185 // Remove extensions from maximized locale.
186 // de_Latn_DE@collation=phonebook -> de_Latn_DE
187 char icu_base_max_locale[ULOC_FULLNAME_CAPACITY];
188 uloc_getBaseName(icu_max_locale, icu_base_max_locale,
189 ULOC_FULLNAME_CAPACITY, &error);
190
191 // Get original name without extensions.
192 // de_DE@collation=phonebook -> de_DE
193 char icu_base_locale[ULOC_FULLNAME_CAPACITY];
194 uloc_getBaseName(icu_locale, icu_base_locale, ULOC_FULLNAME_CAPACITY,
195 &error);
196
197 // Convert from ICU locale format to BCP47 format.
198 // de_Latn_DE -> de-Latn-DE
199 char base_max_locale[ULOC_FULLNAME_CAPACITY];
200 uloc_toLanguageTag(icu_base_max_locale, base_max_locale,
201 ULOC_FULLNAME_CAPACITY, FALSE, &error);
202
203 // de_DE -> de-DE
204 char base_locale[ULOC_FULLNAME_CAPACITY];
205 uloc_toLanguageTag(icu_base_locale, base_locale, ULOC_FULLNAME_CAPACITY,
206 FALSE, &error);
207
208 if (U_FAILURE(error)) {
209 return isolate->Throw(*factory->illegal_argument_string());
210 }
211
212 Handle<JSObject> result = factory->NewJSObject(isolate->object_function());
213 Handle<String> value = factory->NewStringFromAsciiChecked(base_max_locale);
214 JSObject::AddProperty(result, maximized, value, NONE);
215 value = factory->NewStringFromAsciiChecked(base_locale);
216 JSObject::AddProperty(result, base, value, NONE);
217 output->set(i, *result);
218 }
219
220 Handle<JSArray> result = factory->NewJSArrayWithElements(output);
221 result->set_length(Smi::FromInt(length));
222 return *result;
223 }
224
225
226 RUNTIME_FUNCTION(Runtime_IsInitializedIntlObject) {
227 HandleScope scope(isolate);
228
229 DCHECK(args.length() == 1);
230
231 CONVERT_ARG_HANDLE_CHECKED(Object, input, 0);
232
233 if (!input->IsJSObject()) return isolate->heap()->false_value();
234 Handle<JSObject> obj = Handle<JSObject>::cast(input);
235
236 Handle<String> marker = isolate->factory()->intl_initialized_marker_string();
237 Handle<Object> tag(obj->GetHiddenProperty(marker), isolate);
238 return isolate->heap()->ToBoolean(!tag->IsTheHole());
239 }
240
241
242 RUNTIME_FUNCTION(Runtime_IsInitializedIntlObjectOfType) {
243 HandleScope scope(isolate);
244
245 DCHECK(args.length() == 2);
246
247 CONVERT_ARG_HANDLE_CHECKED(Object, input, 0);
248 CONVERT_ARG_HANDLE_CHECKED(String, expected_type, 1);
249
250 if (!input->IsJSObject()) return isolate->heap()->false_value();
251 Handle<JSObject> obj = Handle<JSObject>::cast(input);
252
253 Handle<String> marker = isolate->factory()->intl_initialized_marker_string();
254 Handle<Object> tag(obj->GetHiddenProperty(marker), isolate);
255 return isolate->heap()->ToBoolean(tag->IsString() &&
256 String::cast(*tag)->Equals(*expected_type));
257 }
258
259
260 RUNTIME_FUNCTION(Runtime_MarkAsInitializedIntlObjectOfType) {
261 HandleScope scope(isolate);
262
263 DCHECK(args.length() == 3);
264
265 CONVERT_ARG_HANDLE_CHECKED(JSObject, input, 0);
266 CONVERT_ARG_HANDLE_CHECKED(String, type, 1);
267 CONVERT_ARG_HANDLE_CHECKED(JSObject, impl, 2);
268
269 Handle<String> marker = isolate->factory()->intl_initialized_marker_string();
270 JSObject::SetHiddenProperty(input, marker, type);
271
272 marker = isolate->factory()->intl_impl_object_string();
273 JSObject::SetHiddenProperty(input, marker, impl);
274
275 return isolate->heap()->undefined_value();
276 }
277
278
279 RUNTIME_FUNCTION(Runtime_GetImplFromInitializedIntlObject) {
280 HandleScope scope(isolate);
281
282 DCHECK(args.length() == 1);
283
284 CONVERT_ARG_HANDLE_CHECKED(Object, input, 0);
285
286 if (!input->IsJSObject()) {
287 Vector<Handle<Object> > arguments = HandleVector(&input, 1);
288 THROW_NEW_ERROR_RETURN_FAILURE(isolate,
289 NewTypeError("not_intl_object", arguments));
290 }
291
292 Handle<JSObject> obj = Handle<JSObject>::cast(input);
293
294 Handle<String> marker = isolate->factory()->intl_impl_object_string();
295 Handle<Object> impl(obj->GetHiddenProperty(marker), isolate);
296 if (impl->IsTheHole()) {
297 Vector<Handle<Object> > arguments = HandleVector(&obj, 1);
298 THROW_NEW_ERROR_RETURN_FAILURE(isolate,
299 NewTypeError("not_intl_object", arguments));
300 }
301 return *impl;
302 }
303
304
305 RUNTIME_FUNCTION(Runtime_CreateDateTimeFormat) {
306 HandleScope scope(isolate);
307
308 DCHECK(args.length() == 3);
309
310 CONVERT_ARG_HANDLE_CHECKED(String, locale, 0);
311 CONVERT_ARG_HANDLE_CHECKED(JSObject, options, 1);
312 CONVERT_ARG_HANDLE_CHECKED(JSObject, resolved, 2);
313
314 Handle<ObjectTemplateInfo> date_format_template = I18N::GetTemplate(isolate);
315
316 // Create an empty object wrapper.
317 Handle<JSObject> local_object;
318 ASSIGN_RETURN_FAILURE_ON_EXCEPTION(
319 isolate, local_object,
320 Execution::InstantiateObject(date_format_template));
321
322 // Set date time formatter as internal field of the resulting JS object.
323 icu::SimpleDateFormat* date_format =
324 DateFormat::InitializeDateTimeFormat(isolate, locale, options, resolved);
325
326 if (!date_format) return isolate->ThrowIllegalOperation();
327
328 local_object->SetInternalField(0, reinterpret_cast<Smi*>(date_format));
329
330 Factory* factory = isolate->factory();
331 Handle<String> key = factory->NewStringFromStaticChars("dateFormat");
332 Handle<String> value = factory->NewStringFromStaticChars("valid");
333 JSObject::AddProperty(local_object, key, value, NONE);
334
335 // Make object handle weak so we can delete the data format once GC kicks in.
336 Handle<Object> wrapper = isolate->global_handles()->Create(*local_object);
337 GlobalHandles::MakeWeak(wrapper.location(),
338 reinterpret_cast<void*>(wrapper.location()),
339 DateFormat::DeleteDateFormat);
340 return *local_object;
341 }
342
343
344 RUNTIME_FUNCTION(Runtime_InternalDateFormat) {
345 HandleScope scope(isolate);
346
347 DCHECK(args.length() == 2);
348
349 CONVERT_ARG_HANDLE_CHECKED(JSObject, date_format_holder, 0);
350 CONVERT_ARG_HANDLE_CHECKED(JSDate, date, 1);
351
352 Handle<Object> value;
353 ASSIGN_RETURN_FAILURE_ON_EXCEPTION(isolate, value,
354 Execution::ToNumber(isolate, date));
355
356 icu::SimpleDateFormat* date_format =
357 DateFormat::UnpackDateFormat(isolate, date_format_holder);
358 if (!date_format) return isolate->ThrowIllegalOperation();
359
360 icu::UnicodeString result;
361 date_format->format(value->Number(), result);
362
363 Handle<String> result_str;
364 ASSIGN_RETURN_FAILURE_ON_EXCEPTION(
365 isolate, result_str,
366 isolate->factory()->NewStringFromTwoByte(Vector<const uint16_t>(
367 reinterpret_cast<const uint16_t*>(result.getBuffer()),
368 result.length())));
369 return *result_str;
370 }
371
372
373 RUNTIME_FUNCTION(Runtime_InternalDateParse) {
374 HandleScope scope(isolate);
375
376 DCHECK(args.length() == 2);
377
378 CONVERT_ARG_HANDLE_CHECKED(JSObject, date_format_holder, 0);
379 CONVERT_ARG_HANDLE_CHECKED(String, date_string, 1);
380
381 v8::String::Utf8Value utf8_date(v8::Utils::ToLocal(date_string));
382 icu::UnicodeString u_date(icu::UnicodeString::fromUTF8(*utf8_date));
383 icu::SimpleDateFormat* date_format =
384 DateFormat::UnpackDateFormat(isolate, date_format_holder);
385 if (!date_format) return isolate->ThrowIllegalOperation();
386
387 UErrorCode status = U_ZERO_ERROR;
388 UDate date = date_format->parse(u_date, status);
389 if (U_FAILURE(status)) return isolate->heap()->undefined_value();
390
391 Handle<Object> result;
392 ASSIGN_RETURN_FAILURE_ON_EXCEPTION(
393 isolate, result, Execution::NewDate(isolate, static_cast<double>(date)));
394 DCHECK(result->IsJSDate());
395 return *result;
396 }
397
398
399 RUNTIME_FUNCTION(Runtime_CreateNumberFormat) {
400 HandleScope scope(isolate);
401
402 DCHECK(args.length() == 3);
403
404 CONVERT_ARG_HANDLE_CHECKED(String, locale, 0);
405 CONVERT_ARG_HANDLE_CHECKED(JSObject, options, 1);
406 CONVERT_ARG_HANDLE_CHECKED(JSObject, resolved, 2);
407
408 Handle<ObjectTemplateInfo> number_format_template =
409 I18N::GetTemplate(isolate);
410
411 // Create an empty object wrapper.
412 Handle<JSObject> local_object;
413 ASSIGN_RETURN_FAILURE_ON_EXCEPTION(
414 isolate, local_object,
415 Execution::InstantiateObject(number_format_template));
416
417 // Set number formatter as internal field of the resulting JS object.
418 icu::DecimalFormat* number_format =
419 NumberFormat::InitializeNumberFormat(isolate, locale, options, resolved);
420
421 if (!number_format) return isolate->ThrowIllegalOperation();
422
423 local_object->SetInternalField(0, reinterpret_cast<Smi*>(number_format));
424
425 Factory* factory = isolate->factory();
426 Handle<String> key = factory->NewStringFromStaticChars("numberFormat");
427 Handle<String> value = factory->NewStringFromStaticChars("valid");
428 JSObject::AddProperty(local_object, key, value, NONE);
429
430 Handle<Object> wrapper = isolate->global_handles()->Create(*local_object);
431 GlobalHandles::MakeWeak(wrapper.location(),
432 reinterpret_cast<void*>(wrapper.location()),
433 NumberFormat::DeleteNumberFormat);
434 return *local_object;
435 }
436
437
438 RUNTIME_FUNCTION(Runtime_InternalNumberFormat) {
439 HandleScope scope(isolate);
440
441 DCHECK(args.length() == 2);
442
443 CONVERT_ARG_HANDLE_CHECKED(JSObject, number_format_holder, 0);
444 CONVERT_ARG_HANDLE_CHECKED(Object, number, 1);
445
446 Handle<Object> value;
447 ASSIGN_RETURN_FAILURE_ON_EXCEPTION(isolate, value,
448 Execution::ToNumber(isolate, number));
449
450 icu::DecimalFormat* number_format =
451 NumberFormat::UnpackNumberFormat(isolate, number_format_holder);
452 if (!number_format) return isolate->ThrowIllegalOperation();
453
454 icu::UnicodeString result;
455 number_format->format(value->Number(), result);
456
457 Handle<String> result_str;
458 ASSIGN_RETURN_FAILURE_ON_EXCEPTION(
459 isolate, result_str,
460 isolate->factory()->NewStringFromTwoByte(Vector<const uint16_t>(
461 reinterpret_cast<const uint16_t*>(result.getBuffer()),
462 result.length())));
463 return *result_str;
464 }
465
466
467 RUNTIME_FUNCTION(Runtime_InternalNumberParse) {
468 HandleScope scope(isolate);
469
470 DCHECK(args.length() == 2);
471
472 CONVERT_ARG_HANDLE_CHECKED(JSObject, number_format_holder, 0);
473 CONVERT_ARG_HANDLE_CHECKED(String, number_string, 1);
474
475 v8::String::Utf8Value utf8_number(v8::Utils::ToLocal(number_string));
476 icu::UnicodeString u_number(icu::UnicodeString::fromUTF8(*utf8_number));
477 icu::DecimalFormat* number_format =
478 NumberFormat::UnpackNumberFormat(isolate, number_format_holder);
479 if (!number_format) return isolate->ThrowIllegalOperation();
480
481 UErrorCode status = U_ZERO_ERROR;
482 icu::Formattable result;
483 // ICU 4.6 doesn't support parseCurrency call. We need to wait for ICU49
484 // to be part of Chrome.
485 // TODO(cira): Include currency parsing code using parseCurrency call.
486 // We need to check if the formatter parses all currencies or only the
487 // one it was constructed with (it will impact the API - how to return ISO
488 // code and the value).
489 number_format->parse(u_number, result, status);
490 if (U_FAILURE(status)) return isolate->heap()->undefined_value();
491
492 switch (result.getType()) {
493 case icu::Formattable::kDouble:
494 return *isolate->factory()->NewNumber(result.getDouble());
495 case icu::Formattable::kLong:
496 return *isolate->factory()->NewNumberFromInt(result.getLong());
497 case icu::Formattable::kInt64:
498 return *isolate->factory()->NewNumber(
499 static_cast<double>(result.getInt64()));
500 default:
501 return isolate->heap()->undefined_value();
502 }
503 }
504
505
506 RUNTIME_FUNCTION(Runtime_CreateCollator) {
507 HandleScope scope(isolate);
508
509 DCHECK(args.length() == 3);
510
511 CONVERT_ARG_HANDLE_CHECKED(String, locale, 0);
512 CONVERT_ARG_HANDLE_CHECKED(JSObject, options, 1);
513 CONVERT_ARG_HANDLE_CHECKED(JSObject, resolved, 2);
514
515 Handle<ObjectTemplateInfo> collator_template = I18N::GetTemplate(isolate);
516
517 // Create an empty object wrapper.
518 Handle<JSObject> local_object;
519 ASSIGN_RETURN_FAILURE_ON_EXCEPTION(
520 isolate, local_object, Execution::InstantiateObject(collator_template));
521
522 // Set collator as internal field of the resulting JS object.
523 icu::Collator* collator =
524 Collator::InitializeCollator(isolate, locale, options, resolved);
525
526 if (!collator) return isolate->ThrowIllegalOperation();
527
528 local_object->SetInternalField(0, reinterpret_cast<Smi*>(collator));
529
530 Factory* factory = isolate->factory();
531 Handle<String> key = factory->NewStringFromStaticChars("collator");
532 Handle<String> value = factory->NewStringFromStaticChars("valid");
533 JSObject::AddProperty(local_object, key, value, NONE);
534
535 Handle<Object> wrapper = isolate->global_handles()->Create(*local_object);
536 GlobalHandles::MakeWeak(wrapper.location(),
537 reinterpret_cast<void*>(wrapper.location()),
538 Collator::DeleteCollator);
539 return *local_object;
540 }
541
542
543 RUNTIME_FUNCTION(Runtime_InternalCompare) {
544 HandleScope scope(isolate);
545
546 DCHECK(args.length() == 3);
547
548 CONVERT_ARG_HANDLE_CHECKED(JSObject, collator_holder, 0);
549 CONVERT_ARG_HANDLE_CHECKED(String, string1, 1);
550 CONVERT_ARG_HANDLE_CHECKED(String, string2, 2);
551
552 icu::Collator* collator = Collator::UnpackCollator(isolate, collator_holder);
553 if (!collator) return isolate->ThrowIllegalOperation();
554
555 v8::String::Value string_value1(v8::Utils::ToLocal(string1));
556 v8::String::Value string_value2(v8::Utils::ToLocal(string2));
557 const UChar* u_string1 = reinterpret_cast<const UChar*>(*string_value1);
558 const UChar* u_string2 = reinterpret_cast<const UChar*>(*string_value2);
559 UErrorCode status = U_ZERO_ERROR;
560 UCollationResult result =
561 collator->compare(u_string1, string_value1.length(), u_string2,
562 string_value2.length(), status);
563 if (U_FAILURE(status)) return isolate->ThrowIllegalOperation();
564
565 return *isolate->factory()->NewNumberFromInt(result);
566 }
567
568
569 RUNTIME_FUNCTION(Runtime_StringNormalize) {
570 HandleScope scope(isolate);
571 static const UNormalizationMode normalizationForms[] = {
572 UNORM_NFC, UNORM_NFD, UNORM_NFKC, UNORM_NFKD};
573
574 DCHECK(args.length() == 2);
575
576 CONVERT_ARG_HANDLE_CHECKED(String, stringValue, 0);
577 CONVERT_NUMBER_CHECKED(int, form_id, Int32, args[1]);
578 RUNTIME_ASSERT(form_id >= 0 &&
579 static_cast<size_t>(form_id) < arraysize(normalizationForms));
580
581 v8::String::Value string_value(v8::Utils::ToLocal(stringValue));
582 const UChar* u_value = reinterpret_cast<const UChar*>(*string_value);
583
584 // TODO(mnita): check Normalizer2 (not available in ICU 46)
585 UErrorCode status = U_ZERO_ERROR;
586 icu::UnicodeString result;
587 icu::Normalizer::normalize(u_value, normalizationForms[form_id], 0, result,
588 status);
589 if (U_FAILURE(status)) {
590 return isolate->heap()->undefined_value();
591 }
592
593 Handle<String> result_str;
594 ASSIGN_RETURN_FAILURE_ON_EXCEPTION(
595 isolate, result_str,
596 isolate->factory()->NewStringFromTwoByte(Vector<const uint16_t>(
597 reinterpret_cast<const uint16_t*>(result.getBuffer()),
598 result.length())));
599 return *result_str;
600 }
601
602
603 RUNTIME_FUNCTION(Runtime_CreateBreakIterator) {
604 HandleScope scope(isolate);
605
606 DCHECK(args.length() == 3);
607
608 CONVERT_ARG_HANDLE_CHECKED(String, locale, 0);
609 CONVERT_ARG_HANDLE_CHECKED(JSObject, options, 1);
610 CONVERT_ARG_HANDLE_CHECKED(JSObject, resolved, 2);
611
612 Handle<ObjectTemplateInfo> break_iterator_template =
613 I18N::GetTemplate2(isolate);
614
615 // Create an empty object wrapper.
616 Handle<JSObject> local_object;
617 ASSIGN_RETURN_FAILURE_ON_EXCEPTION(
618 isolate, local_object,
619 Execution::InstantiateObject(break_iterator_template));
620
621 // Set break iterator as internal field of the resulting JS object.
622 icu::BreakIterator* break_iterator = BreakIterator::InitializeBreakIterator(
623 isolate, locale, options, resolved);
624
625 if (!break_iterator) return isolate->ThrowIllegalOperation();
626
627 local_object->SetInternalField(0, reinterpret_cast<Smi*>(break_iterator));
628 // Make sure that the pointer to adopted text is NULL.
629 local_object->SetInternalField(1, reinterpret_cast<Smi*>(NULL));
630
631 Factory* factory = isolate->factory();
632 Handle<String> key = factory->NewStringFromStaticChars("breakIterator");
633 Handle<String> value = factory->NewStringFromStaticChars("valid");
634 JSObject::AddProperty(local_object, key, value, NONE);
635
636 // Make object handle weak so we can delete the break iterator once GC kicks
637 // in.
638 Handle<Object> wrapper = isolate->global_handles()->Create(*local_object);
639 GlobalHandles::MakeWeak(wrapper.location(),
640 reinterpret_cast<void*>(wrapper.location()),
641 BreakIterator::DeleteBreakIterator);
642 return *local_object;
643 }
644
645
646 RUNTIME_FUNCTION(Runtime_BreakIteratorAdoptText) {
647 HandleScope scope(isolate);
648
649 DCHECK(args.length() == 2);
650
651 CONVERT_ARG_HANDLE_CHECKED(JSObject, break_iterator_holder, 0);
652 CONVERT_ARG_HANDLE_CHECKED(String, text, 1);
653
654 icu::BreakIterator* break_iterator =
655 BreakIterator::UnpackBreakIterator(isolate, break_iterator_holder);
656 if (!break_iterator) return isolate->ThrowIllegalOperation();
657
658 icu::UnicodeString* u_text = reinterpret_cast<icu::UnicodeString*>(
659 break_iterator_holder->GetInternalField(1));
660 delete u_text;
661
662 v8::String::Value text_value(v8::Utils::ToLocal(text));
663 u_text = new icu::UnicodeString(reinterpret_cast<const UChar*>(*text_value),
664 text_value.length());
665 break_iterator_holder->SetInternalField(1, reinterpret_cast<Smi*>(u_text));
666
667 break_iterator->setText(*u_text);
668
669 return isolate->heap()->undefined_value();
670 }
671
672
673 RUNTIME_FUNCTION(Runtime_BreakIteratorFirst) {
674 HandleScope scope(isolate);
675
676 DCHECK(args.length() == 1);
677
678 CONVERT_ARG_HANDLE_CHECKED(JSObject, break_iterator_holder, 0);
679
680 icu::BreakIterator* break_iterator =
681 BreakIterator::UnpackBreakIterator(isolate, break_iterator_holder);
682 if (!break_iterator) return isolate->ThrowIllegalOperation();
683
684 return *isolate->factory()->NewNumberFromInt(break_iterator->first());
685 }
686
687
688 RUNTIME_FUNCTION(Runtime_BreakIteratorNext) {
689 HandleScope scope(isolate);
690
691 DCHECK(args.length() == 1);
692
693 CONVERT_ARG_HANDLE_CHECKED(JSObject, break_iterator_holder, 0);
694
695 icu::BreakIterator* break_iterator =
696 BreakIterator::UnpackBreakIterator(isolate, break_iterator_holder);
697 if (!break_iterator) return isolate->ThrowIllegalOperation();
698
699 return *isolate->factory()->NewNumberFromInt(break_iterator->next());
700 }
701
702
703 RUNTIME_FUNCTION(Runtime_BreakIteratorCurrent) {
704 HandleScope scope(isolate);
705
706 DCHECK(args.length() == 1);
707
708 CONVERT_ARG_HANDLE_CHECKED(JSObject, break_iterator_holder, 0);
709
710 icu::BreakIterator* break_iterator =
711 BreakIterator::UnpackBreakIterator(isolate, break_iterator_holder);
712 if (!break_iterator) return isolate->ThrowIllegalOperation();
713
714 return *isolate->factory()->NewNumberFromInt(break_iterator->current());
715 }
716
717
718 RUNTIME_FUNCTION(Runtime_BreakIteratorBreakType) {
719 HandleScope scope(isolate);
720
721 DCHECK(args.length() == 1);
722
723 CONVERT_ARG_HANDLE_CHECKED(JSObject, break_iterator_holder, 0);
724
725 icu::BreakIterator* break_iterator =
726 BreakIterator::UnpackBreakIterator(isolate, break_iterator_holder);
727 if (!break_iterator) return isolate->ThrowIllegalOperation();
728
729 // TODO(cira): Remove cast once ICU fixes base BreakIterator class.
730 icu::RuleBasedBreakIterator* rule_based_iterator =
731 static_cast<icu::RuleBasedBreakIterator*>(break_iterator);
732 int32_t status = rule_based_iterator->getRuleStatus();
733 // Keep return values in sync with JavaScript BreakType enum.
734 if (status >= UBRK_WORD_NONE && status < UBRK_WORD_NONE_LIMIT) {
735 return *isolate->factory()->NewStringFromStaticChars("none");
736 } else if (status >= UBRK_WORD_NUMBER && status < UBRK_WORD_NUMBER_LIMIT) {
737 return *isolate->factory()->number_string();
738 } else if (status >= UBRK_WORD_LETTER && status < UBRK_WORD_LETTER_LIMIT) {
739 return *isolate->factory()->NewStringFromStaticChars("letter");
740 } else if (status >= UBRK_WORD_KANA && status < UBRK_WORD_KANA_LIMIT) {
741 return *isolate->factory()->NewStringFromStaticChars("kana");
742 } else if (status >= UBRK_WORD_IDEO && status < UBRK_WORD_IDEO_LIMIT) {
743 return *isolate->factory()->NewStringFromStaticChars("ideo");
744 } else {
745 return *isolate->factory()->NewStringFromStaticChars("unknown");
746 }
747 }
748 }
749 } // namespace v8::internal
750
751 #endif // V8_I18N_SUPPORT
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