1/*
2 * Copyright (C) 2011-2017 Apple Inc. All rights reserved.
3 *
4 * Redistribution and use in source and binary forms, with or without
5 * modification, are permitted provided that the following conditions
6 * are met:
7 * 1. Redistributions of source code must retain the above copyright
8 * notice, this list of conditions and the following disclaimer.
9 * 2. Redistributions in binary form must reproduce the above copyright
10 * notice, this list of conditions and the following disclaimer in the
11 * documentation and/or other materials provided with the distribution.
12 *
13 * THIS SOFTWARE IS PROVIDED BY APPLE INC. ``AS IS'' AND ANY
14 * EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
15 * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR
16 * PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL APPLE INC. OR
17 * CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL,
18 * EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO,
19 * PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR
20 * PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY
21 * OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
22 * (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE
23 * OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
24 */
25
26#pragma once
27
28#include "TextCodec.h"
29#include <unicode/utf8.h>
30#include <wtf/text/LChar.h>
31
32namespace WebCore {
33
34class TextCodecUTF8 : public TextCodec {
35public:
36 static void registerEncodingNames(EncodingNameRegistrar);
37 static void registerCodecs(TextCodecRegistrar);
38
39private:
40 String decode(const char*, size_t length, bool flush, bool stopOnError, bool& sawError) override;
41 Vector<uint8_t> encode(StringView, UnencodableHandling) final;
42
43 bool handlePartialSequence(LChar*& destination, const uint8_t*& source, const uint8_t* end, bool flush);
44 void handlePartialSequence(UChar*& destination, const uint8_t*& source, const uint8_t* end, bool flush, bool stopOnError, bool& sawError);
45 void consumePartialSequenceByte();
46
47 int m_partialSequenceSize { 0 };
48 uint8_t m_partialSequence[U8_MAX_LENGTH];
49
50};
51
52} // namespace WebCore
53
54