--- /dev/null
+// Copyright 2011 the V8 project authors. All rights reserved.
+// Redistribution and use in source and binary forms, with or without
+// modification, are permitted provided that the following conditions are
+// met:
+//
+// * Redistributions of source code must retain the above copyright
+// notice, this list of conditions and the following disclaimer.
+// * Redistributions in binary form must reproduce the above
+// copyright notice, this list of conditions and the following
+// disclaimer in the documentation and/or other materials provided
+// with the distribution.
+// * Neither the name of Google Inc. nor the names of its
+// contributors may be used to endorse or promote products derived
+// from this software without specific prior written permission.
+//
+// THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
+// "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT
+// LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR
+// A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT
+// OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL,
+// SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT
+// LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
+// DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY
+// THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
+// (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE
+// OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
+
+#include "break-iterator.h"
+
+#include "unicode/brkiter.h"
+#include "unicode/locid.h"
+#include "unicode/rbbi.h"
+
+namespace v8 {
+namespace internal {
+
+v8::Persistent<v8::FunctionTemplate> BreakIterator::break_iterator_template_;
+
+icu::BreakIterator* BreakIterator::UnpackBreakIterator(
+ v8::Handle<v8::Object> obj) {
+ if (break_iterator_template_->HasInstance(obj)) {
+ return static_cast<icu::BreakIterator*>(
+ obj->GetPointerFromInternalField(0));
+ }
+
+ return NULL;
+}
+
+void BreakIterator::DeleteBreakIterator(v8::Persistent<v8::Value> object,
+ void* param) {
+ v8::Persistent<v8::Object> persistent_object =
+ v8::Persistent<v8::Object>::Cast(object);
+
+ // First delete the hidden C++ object.
+ // Unpacking should never return NULL here. That would only happen if
+ // this method is used as the weak callback for persistent handles not
+ // pointing to a break iterator.
+ delete UnpackBreakIterator(persistent_object);
+
+ // Then dispose of the persistent handle to JS object.
+ persistent_object.Dispose();
+}
+
+// Throws a JavaScript exception.
+static v8::Handle<v8::Value> ThrowUnexpectedObjectError() {
+ // Returns undefined, and schedules an exception to be thrown.
+ return v8::ThrowException(v8::Exception::Error(
+ v8::String::New("BreakIterator method called on an object "
+ "that is not a BreakIterator.")));
+}
+
+v8::Handle<v8::Value> BreakIterator::BreakIteratorAdoptText(
+ const v8::Arguments& args) {
+ if (args.Length() != 1 || !args[0]->IsString()) {
+ return v8::ThrowException(v8::Exception::SyntaxError(
+ v8::String::New("Text input is required.")));
+ }
+
+ icu::BreakIterator* break_iterator = UnpackBreakIterator(args.Holder());
+ if (!break_iterator) {
+ return ThrowUnexpectedObjectError();
+ }
+
+ v8::Local<v8::String> text_value = args[0]->ToString();
+ UnicodeString text(*v8::String::Value(text_value),
+ text_value->Length());
+
+ break_iterator->setText(text);
+
+ return v8::Undefined();
+}
+
+v8::Handle<v8::Value> BreakIterator::BreakIteratorFirst(
+ const v8::Arguments& args) {
+ icu::BreakIterator* break_iterator = UnpackBreakIterator(args.Holder());
+ if (!break_iterator) {
+ return ThrowUnexpectedObjectError();
+ }
+
+ return v8::Int32::New(break_iterator->first());
+}
+
+v8::Handle<v8::Value> BreakIterator::BreakIteratorNext(
+ const v8::Arguments& args) {
+ icu::BreakIterator* break_iterator = UnpackBreakIterator(args.Holder());
+ if (!break_iterator) {
+ return ThrowUnexpectedObjectError();
+ }
+
+ return v8::Int32::New(break_iterator->next());
+}
+
+v8::Handle<v8::Value> BreakIterator::BreakIteratorCurrent(
+ const v8::Arguments& args) {
+ icu::BreakIterator* break_iterator = UnpackBreakIterator(args.Holder());
+ if (!break_iterator) {
+ return ThrowUnexpectedObjectError();
+ }
+
+ return v8::Int32::New(break_iterator->current());
+}
+
+v8::Handle<v8::Value> BreakIterator::BreakIteratorBreakType(
+ const v8::Arguments& args) {
+ icu::BreakIterator* break_iterator = UnpackBreakIterator(args.Holder());
+ if (!break_iterator) {
+ return ThrowUnexpectedObjectError();
+ }
+
+ // TODO(cira): Remove cast once ICU fixes base BreakIterator class.
+ int32_t status =
+ static_cast<RuleBasedBreakIterator*>(break_iterator)->getRuleStatus();
+ // Keep return values in sync with JavaScript BreakType enum.
+ if (status >= UBRK_WORD_NONE && status < UBRK_WORD_NONE_LIMIT) {
+ return v8::Int32::New(UBRK_WORD_NONE);
+ } else if (status >= UBRK_WORD_NUMBER && status < UBRK_WORD_NUMBER_LIMIT) {
+ return v8::Int32::New(UBRK_WORD_NUMBER);
+ } else if (status >= UBRK_WORD_LETTER && status < UBRK_WORD_LETTER_LIMIT) {
+ return v8::Int32::New(UBRK_WORD_LETTER);
+ } else if (status >= UBRK_WORD_KANA && status < UBRK_WORD_KANA_LIMIT) {
+ return v8::Int32::New(UBRK_WORD_KANA);
+ } else if (status >= UBRK_WORD_IDEO && status < UBRK_WORD_IDEO_LIMIT) {
+ return v8::Int32::New(UBRK_WORD_IDEO);
+ } else {
+ return v8::Int32::New(-1);
+ }
+}
+
+v8::Handle<v8::Value> BreakIterator::JSBreakIterator(
+ const v8::Arguments& args) {
+ v8::HandleScope handle_scope;
+
+ if (args.Length() != 2 || !args[0]->IsString() || !args[1]->IsString()) {
+ return v8::ThrowException(v8::Exception::SyntaxError(
+ v8::String::New("Locale and iterator type are required.")));
+ }
+
+ const char* locale = *v8::String::Utf8Value(args[0]->ToString());
+ icu::Locale icu_locale(locale);
+
+ UErrorCode status = U_ZERO_ERROR;
+ icu::BreakIterator* break_iterator = NULL;
+ const char* type = *v8::String::Utf8Value(args[1]->ToString());
+ if (!strcmp(type, "character")) {
+ break_iterator =
+ icu::BreakIterator::createCharacterInstance(icu_locale, status);
+ } else if (!strcmp(type, "word")) {
+ break_iterator =
+ icu::BreakIterator::createWordInstance(icu_locale, status);
+ } else if (!strcmp(type, "sentence")) {
+ break_iterator =
+ icu::BreakIterator::createSentenceInstance(icu_locale, status);
+ } else if (!strcmp(type, "line")) {
+ break_iterator =
+ icu::BreakIterator::createLineInstance(icu_locale, status);
+ } else {
+ return v8::ThrowException(v8::Exception::SyntaxError(
+ v8::String::New("Invalid iterator type.")));
+ }
+
+ if (U_FAILURE(status)) {
+ delete break_iterator;
+ return v8::ThrowException(v8::Exception::Error(
+ v8::String::New("Failed to create break iterator.")));
+ }
+
+ if (break_iterator_template_.IsEmpty()) {
+ v8::Local<v8::FunctionTemplate> raw_template(v8::FunctionTemplate::New());
+
+ raw_template->SetClassName(v8::String::New("v8Locale.v8BreakIterator"));
+
+ // Define internal field count on instance template.
+ v8::Local<v8::ObjectTemplate> object_template =
+ raw_template->InstanceTemplate();
+ object_template->SetInternalFieldCount(1);
+
+ // Define all of the prototype methods on prototype template.
+ v8::Local<v8::ObjectTemplate> proto = raw_template->PrototypeTemplate();
+ proto->Set(v8::String::New("adoptText"),
+ v8::FunctionTemplate::New(BreakIteratorAdoptText));
+ proto->Set(v8::String::New("first"),
+ v8::FunctionTemplate::New(BreakIteratorFirst));
+ proto->Set(v8::String::New("next"),
+ v8::FunctionTemplate::New(BreakIteratorNext));
+ proto->Set(v8::String::New("current"),
+ v8::FunctionTemplate::New(BreakIteratorCurrent));
+ proto->Set(v8::String::New("breakType"),
+ v8::FunctionTemplate::New(BreakIteratorBreakType));
+
+ break_iterator_template_ =
+ v8::Persistent<v8::FunctionTemplate>::New(raw_template);
+ }
+
+ // Create an empty object wrapper.
+ v8::Local<v8::Object> local_object =
+ break_iterator_template_->GetFunction()->NewInstance();
+ v8::Persistent<v8::Object> wrapper =
+ v8::Persistent<v8::Object>::New(local_object);
+
+ // Set break iterator as internal field of the resulting JS object.
+ wrapper->SetPointerInInternalField(0, break_iterator);
+
+ // Make object handle weak so we can delete iterator once GC kicks in.
+ wrapper.MakeWeak(NULL, DeleteBreakIterator);
+
+ return wrapper;
+}
+
+} } // namespace v8::internal
--- /dev/null
+// Copyright 2011 the V8 project authors. All rights reserved.
+// Redistribution and use in source and binary forms, with or without
+// modification, are permitted provided that the following conditions are
+// met:
+//
+// * Redistributions of source code must retain the above copyright
+// notice, this list of conditions and the following disclaimer.
+// * Redistributions in binary form must reproduce the above
+// copyright notice, this list of conditions and the following
+// disclaimer in the documentation and/or other materials provided
+// with the distribution.
+// * Neither the name of Google Inc. nor the names of its
+// contributors may be used to endorse or promote products derived
+// from this software without specific prior written permission.
+//
+// THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
+// "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT
+// LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR
+// A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT
+// OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL,
+// SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT
+// LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
+// DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY
+// THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
+// (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE
+// OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
+
+#ifndef V8_EXTENSIONS_EXPERIMENTAL_BREAK_ITERATOR_H_
+#define V8_EXTENSIONS_EXPERIMENTAL_BREAK_ITERATOR_H_
+
+#include <v8.h>
+
+#include "unicode/uversion.h"
+
+namespace U_ICU_NAMESPACE {
+class BreakIterator;
+}
+
+namespace v8 {
+namespace internal {
+
+class BreakIterator {
+ public:
+ static v8::Handle<v8::Value> JSBreakIterator(const v8::Arguments& args);
+
+ // Helper methods for various bindings.
+
+ // Unpacks break iterator object from corresponding JavaScript object.
+ static icu::BreakIterator* UnpackBreakIterator(v8::Handle<v8::Object> obj);
+
+ // Release memory we allocated for the BreakIterator once the JS object that
+ // holds the pointer gets garbage collected.
+ static void DeleteBreakIterator(v8::Persistent<v8::Value> object,
+ void* param);
+
+ // Assigns new text to the iterator.
+ static v8::Handle<v8::Value> BreakIteratorAdoptText(
+ const v8::Arguments& args);
+
+ // Moves iterator to the beginning of the string and returns new position.
+ static v8::Handle<v8::Value> BreakIteratorFirst(const v8::Arguments& args);
+
+ // Moves iterator to the next position and returns it.
+ static v8::Handle<v8::Value> BreakIteratorNext(const v8::Arguments& args);
+
+ // Returns current iterator's current position.
+ static v8::Handle<v8::Value> BreakIteratorCurrent(
+ const v8::Arguments& args);
+
+ // Returns type of the item from current position.
+ // This call is only valid for word break iterators. Others just return 0.
+ static v8::Handle<v8::Value> BreakIteratorBreakType(
+ const v8::Arguments& args);
+
+ private:
+ BreakIterator() {}
+
+ static v8::Persistent<v8::FunctionTemplate> break_iterator_template_;
+};
+
+} } // namespace v8::internal
+
+#endif // V8_EXTENSIONS_EXPERIMENTAL_BREAK_ITERATOR_H_
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