75 lines
3.1 KiB
C++
75 lines
3.1 KiB
C++
/*
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* Copyright (C) 2020 Apple Inc. All rights reserved.
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*
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* Redistribution and use in source and binary forms, with or without
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* modification, are permitted provided that the following conditions
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* are met:
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* 1. Redistributions of source code must retain the above copyright
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* notice, this list of conditions and the following disclaimer.
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* 2. Redistributions in binary form must reproduce the above copyright
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* notice, this list of conditions and the following disclaimer in the
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* documentation and/or other materials provided with the distribution.
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*
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* THIS SOFTWARE IS PROVIDED BY APPLE INC. ``AS IS'' AND ANY
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* EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
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* IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR
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* PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL APPLE INC. OR
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* CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL,
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* EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO,
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* PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR
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* PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY
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* OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
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* (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE
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* OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
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*/
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#pragma once
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#include "TextCodec.h"
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#include <optional>
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namespace WebCore {
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class TextCodecCJK final : public TextCodec {
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public:
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static void registerEncodingNames(EncodingNameRegistrar);
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static void registerCodecs(TextCodecRegistrar);
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enum class Encoding : uint8_t;
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explicit TextCodecCJK(Encoding);
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private:
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String decode(const char*, size_t length, bool flush, bool stopOnError, bool& sawError) final;
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Vector<uint8_t> encode(StringView, UnencodableHandling) const final;
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enum class SawError : bool { No, Yes };
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String decodeCommon(const uint8_t*, size_t, bool, bool, bool&, const Function<SawError(uint8_t, StringBuilder&)>&);
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String eucJPDecode(const uint8_t*, size_t, bool, bool, bool&);
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String iso2022JPDecode(const uint8_t*, size_t, bool, bool, bool&);
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String shiftJISDecode(const uint8_t*, size_t, bool, bool, bool&);
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String eucKRDecode(const uint8_t*, size_t, bool, bool, bool&);
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String big5Decode(const uint8_t*, size_t, bool, bool, bool&);
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String gbkDecode(const uint8_t*, size_t, bool, bool, bool&);
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String gb18030Decode(const uint8_t*, size_t, bool, bool, bool&);
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const Encoding m_encoding;
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bool m_jis0212 { false };
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enum class ISO2022JPDecoderState : uint8_t { ASCII, Roman, Katakana, LeadByte, TrailByte, EscapeStart, Escape };
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ISO2022JPDecoderState m_iso2022JPDecoderState { ISO2022JPDecoderState::ASCII };
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ISO2022JPDecoderState m_iso2022JPDecoderOutputState { ISO2022JPDecoderState::ASCII };
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bool m_iso2022JPOutput { false };
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std::optional<uint8_t> m_iso2022JPSecondPrependedByte;
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uint8_t m_gb18030First { 0x00 };
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uint8_t m_gb18030Second { 0x00 };
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uint8_t m_gb18030Third { 0x00 };
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uint8_t m_lead { 0x00 };
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std::optional<uint8_t> m_prependedByte;
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};
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} // namespace WebCore
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