/*
 * Copyright (C) 2003, 2006 Apple Computer, 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 CString_h
#define CString_h

#include <wtf/Vector.h>
#include "Shared.h"

namespace WebCore {
    class DeprecatedCString;
    
    class CStringBuffer : public Shared<CStringBuffer> {
    public:
        CStringBuffer(unsigned length) : m_vector(length) { }
        
        char* data() { return m_vector.data(); }
        unsigned length() const { return m_vector.size(); }
    private:
        Vector<char> m_vector;
    };
    
    class CString {
    public:
        CString() { }
        CString(const char* str);
        CString(const char* str, unsigned length);
        
        const char* data() const;
        unsigned length() const;
        
        operator const char*() const { return data(); }        
        
        bool isNull() const { return !m_buffer; }
        
        CString(const DeprecatedCString& str);
        DeprecatedCString deprecatedCString() const;
    private:
        void init(const char*str, unsigned length);
        RefPtr<CStringBuffer> m_buffer;
    };
    
}

#endif // CString_h