| /* |
| * Copyright (C) 2011 Apple Inc. All rights reserved. |
| * |
| * 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_UTF8_H_ |
| #define THIRD_PARTY_BLINK_RENDERER_PLATFORM_WTF_TEXT_TEXT_CODEC_UTF8_H_ |
| |
| #include <memory> |
| #include "third_party/blink/renderer/platform/wtf/text/text_codec.h" |
| |
| namespace WTF { |
| |
| class TextCodecUTF8 : public TextCodec { |
| public: |
| static void RegisterEncodingNames(EncodingNameRegistrar); |
| static void RegisterCodecs(TextCodecRegistrar); |
| |
| protected: |
| TextCodecUTF8() : partial_sequence_size_(0) {} |
| |
| private: |
| static std::unique_ptr<TextCodec> Create(const TextEncoding&, const void*); |
| |
| String Decode(const char*, |
| wtf_size_t length, |
| FlushBehavior, |
| bool stop_on_error, |
| bool& saw_error) override; |
| std::string Encode(const UChar*, |
| wtf_size_t length, |
| UnencodableHandling) override; |
| std::string Encode(const LChar*, |
| wtf_size_t length, |
| UnencodableHandling) override; |
| |
| // See comment above TextCodec::EncodeInto for more information. |
| // This implementation writes as many code points to |destination| as will |
| // fit, while never writing partial code points. If EncodeIntoResult's |
| // |bytes_written| member is less than |capacity|, the remaining |
| // |capacity| - |bytes_written| bytes remain untouched. |
| EncodeIntoResult EncodeInto(const UChar*, |
| wtf_size_t length, |
| unsigned char* destination, |
| size_t capacity) override; |
| EncodeIntoResult EncodeInto(const LChar*, |
| wtf_size_t length, |
| unsigned char* destination, |
| size_t capacity) override; |
| |
| template <typename CharType> |
| std::string EncodeCommon(const CharType* characters, wtf_size_t length); |
| template <typename CharType> |
| EncodeIntoResult EncodeIntoCommon(const CharType* characters, |
| wtf_size_t length, |
| unsigned char* destination, |
| size_t capacity); |
| |
| template <typename CharType> |
| bool HandlePartialSequence(CharType*& destination, |
| const uint8_t*& source, |
| const uint8_t* end, |
| bool flush, |
| bool stop_on_error, |
| bool& saw_error); |
| void HandleError(int character, |
| UChar*& destination, |
| bool stop_on_error, |
| bool& saw_error); |
| void ConsumePartialSequenceBytes(int num_bytes); |
| |
| int partial_sequence_size_; |
| uint8_t partial_sequence_[U8_MAX_LENGTH]; |
| }; |
| |
| } // namespace WTF |
| |
| #endif // THIRD_PARTY_BLINK_RENDERER_PLATFORM_WTF_TEXT_TEXT_CODEC_UTF8_H_ |