Move i18n break iterator C++ code to runtime

src/extensions/i18n/i18n-utils.h

-// Copyright 2013 the V8 project authors. All rights reserved.
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-// modification, are permitted provided that the following conditions are
-// met:
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-//     * 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.
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-//       contributors may be used to endorse or promote products derived
-//       from this software without specific prior written permission.
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-// THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
-// "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT
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-// A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT
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-// limitations under the License.
-
-#ifndef V8_EXTENSIONS_I18N_SRC_UTILS_H_
-#define V8_EXTENSIONS_I18N_SRC_UTILS_H_
-
-#include "unicode/uversion.h"
-#include "v8.h"
-
-namespace U_ICU_NAMESPACE {
-class UnicodeString;
-}
-
-namespace v8_i18n {
-
-class Utils {
- public:
-  // Safe string copy. Null terminates the destination. Copies at most
-  // (length - 1) bytes.
-  // We can't use snprintf since it's not supported on all relevant platforms.
-  // We can't use OS::SNPrintF, it's only for internal code.
-  static void StrNCopy(char* dest, int length, const char* src);
-
-  // Converts v8::String into UnicodeString. Returns false if input
-  // can't be converted into utf8.
-  static bool V8StringToUnicodeString(const v8::Handle<v8::Value>& input,
-                                      icu::UnicodeString* output);
-
-  // Extract a String setting named in |settings| and set it to |result|.
-  // Return true if it's specified. Otherwise, return false.
-  static bool ExtractStringSetting(const v8::Handle<v8::Object>& settings,
-                                   const char* setting,
-                                   icu::UnicodeString* result);
-
-  // Extract a Integer setting named in |settings| and set it to |result|.
-  // Return true if it's specified. Otherwise, return false.
-  static bool ExtractIntegerSetting(const v8::Handle<v8::Object>& settings,
-                                    const char* setting,
-                                    int32_t* result);
-
-  // Extract a Boolean setting named in |settings| and set it to |result|.
-  // Return true if it's specified. Otherwise, return false.
-  static bool ExtractBooleanSetting(const v8::Handle<v8::Object>& settings,
-                                    const char* setting,
-                                    bool* result);
-
-  // Converts ASCII array into UChar array.
-  // Target is always \0 terminated.
-  static void AsciiToUChar(const char* source,
-                           int32_t source_length,
-                           UChar* target,
-                           int32_t target_length);
-
-  // Creates an ObjectTemplate with one internal field.
-  static v8::Local<v8::ObjectTemplate> GetTemplate(v8::Isolate* isolate);
-
-  // Creates an ObjectTemplate with two internal fields.
-  static v8::Local<v8::ObjectTemplate> GetTemplate2(v8::Isolate* isolate);
-
- private:
-  Utils() {}
-};
-
-}  // namespace v8_i18n
-
-#endif  // V8_EXTENSIONS_I18N_UTILS_H_