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/*
* Copyright (C) 2004-2017 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 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 <unicode/ucnv.h>
#include <wtf/TZoneMalloc.h>
#include <wtf/text/ASCIILiteral.h>
#include <wtf/unicode/icu/ICUHelpers.h>
namespace PAL {
using ICUConverterPtr = std::unique_ptr<UConverter, ICUDeleter<ucnv_close>>;
class TextCodecICU final : public TextCodec {
WTF_MAKE_TZONE_ALLOCATED(TextCodecICU);
public:
static void registerEncodingNames(EncodingNameRegistrar);
static void registerCodecs(TextCodecRegistrar);
explicit TextCodecICU(ASCIILiteral encoding, ASCIILiteral canonicalConverterName);
virtual ~TextCodecICU();
private:
String decode(std::span<const uint8_t>, bool flush, bool stopOnError, bool& sawError) final;
Vector<uint8_t> encode(StringView, UnencodableHandling) const final;
void createICUConverter() const;
void releaseICUConverter() const;
int decodeToBuffer(std::span<UChar> buffer, std::span<const uint8_t>& source, int32_t* offsets, bool flush, UErrorCode&);
ASCIILiteral m_encodingName;
ASCIILiteral const m_canonicalConverterName;
mutable ICUConverterPtr m_converter;
};
struct ICUConverterWrapper {
WTF_MAKE_STRUCT_FAST_ALLOCATED;
ICUConverterPtr converter;
};
} // namespace PAL
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