WebCore/platform/text/TextEncodingRegistry.h

/*
 * Copyright (C) 2006, 2007 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 COMPUTER, 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 COMPUTER, 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. 
 */

#ifndef TextEncodingRegistry_h
#define TextEncodingRegistry_h

#include <memory>
#include <wtf/unicode/Unicode.h>

namespace WebCore {

    class TextCodec;
    class TextEncoding;

    // Only TextEncoding and TextDecoder should use this function directly.
    // - Use TextDecoder::decode to decode, since it handles BOMs.
    // - Use TextEncoding::decode to decode if you have all the data at once.
    //   It's implemented by calling TextDecoder::decode so works just as well.
    // - Use TextEncoding::encode to encode, since it takes care of normalization.
    std::auto_ptr<TextCodec> newTextCodec(const TextEncoding&);

    // Only TextEncoding should use this function directly.
    const char* atomicCanonicalTextEncodingName(const char* alias);
    const char* atomicCanonicalTextEncodingName(const UChar* aliasCharacters, size_t aliasLength);

    // Only TextEncoding should use this function directly.
    bool noExtendedTextEncodingNameUsed();

}

#endif // TextEncodingRegistry_h