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/*
* Copyright (C) 2004, 2006, 2007, 2011 Apple Inc. All rights reserved.
* Copyright (C) 2006 Alexey Proskuryakov <ap@nypop.com>
*
* Redistribution and use in source and binary forms, with or without
* modification, are permitted provided that the following conditions
* are met:
* 1. Redistributions of source code must retain the above copyright
* notice, this list of conditions and the following disclaimer.
* 2. 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.
*
* THIS SOFTWARE IS PROVIDED BY APPLE COMPUTER, INC. ``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 APPLE COMPUTER, INC. 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 THIRD_PARTY_BLINK_RENDERER_PLATFORM_WTF_TEXT_TEXT_CODEC_ICU_H_
#define THIRD_PARTY_BLINK_RENDERER_PLATFORM_WTF_TEXT_TEXT_CODEC_ICU_H_
#include <unicode/utypes.h>
#include <memory>
#include "base/gtest_prod_util.h"
#include "third_party/blink/renderer/platform/wtf/text/text_codec.h"
#include "third_party/blink/renderer/platform/wtf/text/text_encoding.h"
typedef struct UConverter UConverter;
namespace WTF {
class TextCodecInput;
class TextCodecICU final : public TextCodec {
public:
static void RegisterEncodingNames(EncodingNameRegistrar);
static void RegisterCodecs(TextCodecRegistrar);
~TextCodecICU() override;
private:
TextCodecICU(const TextEncoding&);
WTF_EXPORT static std::unique_ptr<TextCodec> Create(const TextEncoding&,
const void*);
String Decode(base::span<const uint8_t> data,
FlushBehavior,
bool stop_on_error,
bool& saw_error) override;
std::string Encode(base::span<const UChar>, UnencodableHandling) override;
std::string Encode(base::span<const LChar>, UnencodableHandling) override;
template <typename CharType>
std::string EncodeCommon(base::span<const CharType>, UnencodableHandling);
std::string EncodeInternal(const TextCodecInput&, UnencodableHandling);
void CreateICUConverter() const;
void ReleaseICUConverter() const;
int DecodeToBuffer(UChar* buffer,
UChar* buffer_limit,
const char*& source,
const char* source_limit,
int32_t* offsets,
bool flush,
UErrorCode&);
TextEncoding encoding_;
mutable UConverter* converter_icu_ = nullptr;
#if defined(USING_SYSTEM_ICU)
mutable bool needs_gbk_fallbacks_ = false;
#endif
FRIEND_TEST_ALL_PREFIXES(TextCodecICUTest, IgnorableCodePoint);
};
struct ICUConverterWrapper {
USING_FAST_MALLOC(ICUConverterWrapper);
public:
ICUConverterWrapper() : converter(nullptr) {}
ICUConverterWrapper(const ICUConverterWrapper&) = delete;
ICUConverterWrapper& operator=(const ICUConverterWrapper&) = delete;
~ICUConverterWrapper();
UConverter* converter;
};
} // namespace WTF
#endif // THIRD_PARTY_BLINK_RENDERER_PLATFORM_WTF_TEXT_TEXT_CODEC_ICU_H_
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