1 /* 2 * Copyright (C) 2011 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 COMPUTER, 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 COMPUTER, 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 #ifndef TextCodecUTF8_h 27 #define TextCodecUTF8_h 28 29 #include "wtf/text/TextCodec.h" 30 31 namespace WTF { 32 33 class TextCodecUTF8 : public TextCodec { 34 public: 35 static void registerEncodingNames(EncodingNameRegistrar); 36 static void registerCodecs(TextCodecRegistrar); 37 38 protected: TextCodecUTF8()39 TextCodecUTF8() : m_partialSequenceSize(0) { } 40 41 private: 42 static PassOwnPtr<TextCodec> create(const TextEncoding&, const void*); 43 44 virtual String decode(const char*, size_t length, FlushBehavior, bool stopOnError, bool& sawError) OVERRIDE; 45 virtual CString encode(const UChar*, size_t length, UnencodableHandling) OVERRIDE; 46 virtual CString encode(const LChar*, size_t length, UnencodableHandling) OVERRIDE; 47 48 template<typename CharType> 49 CString encodeCommon(const CharType* characters, size_t length); 50 51 template <typename CharType> 52 bool handlePartialSequence(CharType*& destination, const uint8_t*& source, const uint8_t* end, bool flush, bool stopOnError, bool& sawError); 53 void handleError(UChar*& destination, bool stopOnError, bool& sawError); 54 void consumePartialSequenceByte(); 55 56 int m_partialSequenceSize; 57 uint8_t m_partialSequence[U8_MAX_LENGTH]; 58 59 }; 60 61 } // namespace WTF 62 63 #endif // TextCodecUTF8_h 64