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      1 /*
      2  * Copyright (C) 2006, 2007 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 TextEncodingRegistry_h
     27 #define TextEncodingRegistry_h
     28 
     29 #include "wtf/PassOwnPtr.h"
     30 #include "wtf/WTFExport.h"
     31 #include "wtf/text/WTFString.h"
     32 #include "wtf/unicode/Unicode.h"
     33 
     34 namespace WTF {
     35 
     36 class TextCodec;
     37 class TextEncoding;
     38 
     39 // Use TextResourceDecoder::decode to decode resources, since it handles BOMs.
     40 // Use TextEncoding::encode to encode, since it takes care of normalization.
     41 WTF_EXPORT PassOwnPtr<TextCodec> newTextCodec(const TextEncoding&);
     42 
     43 // Only TextEncoding should use the following functions directly.
     44 const char* atomicCanonicalTextEncodingName(const char* alias);
     45 template <typename CharacterType>
     46 const char* atomicCanonicalTextEncodingName(const CharacterType*, size_t);
     47 const char* atomicCanonicalTextEncodingName(const String&);
     48 bool noExtendedTextEncodingNameUsed();
     49 bool isReplacementEncoding(const char* alias);
     50 bool isReplacementEncoding(const String& alias);
     51 
     52 #ifndef NDEBUG
     53 void dumpTextEncodingNameMap();
     54 #endif
     55 
     56 } // namespace WTF
     57 
     58 using WTF::newTextCodec;
     59 using WTF::atomicCanonicalTextEncodingName;
     60 using WTF::noExtendedTextEncodingNameUsed;
     61 #ifndef NDEBUG
     62 using WTF::dumpTextEncodingNameMap;
     63 #endif
     64 
     65 #endif // TextEncodingRegistry_h
     66