| /* |
| * Copyright (C) 2020 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 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 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. |
| */ |
| |
| #pragma once |
| |
| #include "TextCodec.h" |
| #include <optional> |
| |
| namespace WebCore { |
| |
| class TextCodecCJK final : public TextCodec { |
| public: |
| static void registerEncodingNames(EncodingNameRegistrar); |
| static void registerCodecs(TextCodecRegistrar); |
| |
| enum class Encoding : uint8_t; |
| explicit TextCodecCJK(Encoding); |
| |
| private: |
| String decode(const char*, size_t length, bool flush, bool stopOnError, bool& sawError) final; |
| Vector<uint8_t> encode(StringView, UnencodableHandling) const final; |
| |
| enum class SawError : bool { No, Yes }; |
| String decodeCommon(const uint8_t*, size_t, bool, bool, bool&, const Function<SawError(uint8_t, StringBuilder&)>&); |
| |
| String eucJPDecode(const uint8_t*, size_t, bool, bool, bool&); |
| String iso2022JPDecode(const uint8_t*, size_t, bool, bool, bool&); |
| String shiftJISDecode(const uint8_t*, size_t, bool, bool, bool&); |
| String eucKRDecode(const uint8_t*, size_t, bool, bool, bool&); |
| String big5Decode(const uint8_t*, size_t, bool, bool, bool&); |
| String gbkDecode(const uint8_t*, size_t, bool, bool, bool&); |
| String gb18030Decode(const uint8_t*, size_t, bool, bool, bool&); |
| |
| const Encoding m_encoding; |
| |
| bool m_jis0212 { false }; |
| |
| enum class ISO2022JPDecoderState : uint8_t { ASCII, Roman, Katakana, LeadByte, TrailByte, EscapeStart, Escape }; |
| ISO2022JPDecoderState m_iso2022JPDecoderState { ISO2022JPDecoderState::ASCII }; |
| ISO2022JPDecoderState m_iso2022JPDecoderOutputState { ISO2022JPDecoderState::ASCII }; |
| bool m_iso2022JPOutput { false }; |
| std::optional<uint8_t> m_iso2022JPSecondPrependedByte; |
| |
| uint8_t m_gb18030First { 0x00 }; |
| uint8_t m_gb18030Second { 0x00 }; |
| uint8_t m_gb18030Third { 0x00 }; |
| |
| uint8_t m_lead { 0x00 }; |
| std::optional<uint8_t> m_prependedByte; |
| }; |
| |
| } // namespace WebCore |