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61 lines
2.2 KiB
C++
61 lines
2.2 KiB
C++
/*
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* Copyright (C) 2004 Apple Computer, Inc. All rights reserved.
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*
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* Redistribution and use in source and binary forms, with or without
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* modification, are permitted provided that the following conditions
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* are met:
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* 1. Redistributions of source code must retain the above copyright
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* notice, this list of conditions and the following disclaimer.
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* 2. Redistributions in binary form must reproduce the above copyright
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* notice, this list of conditions and the following disclaimer in the
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* documentation and/or other materials provided with the distribution.
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*
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* THIS SOFTWARE IS PROVIDED BY APPLE COMPUTER, INC. ``AS IS'' AND ANY
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* EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
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* IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR
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* PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL APPLE COMPUTER, INC. OR
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* CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL,
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* EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO,
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* PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR
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* PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY
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* OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
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* (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE
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* OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
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*/
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#ifndef _PositionIterator_h_
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#define _PositionIterator_h_
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#include "dom_position.h"
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namespace DOM {
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class NodeImpl;
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class Position;
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class PositionIterator
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{
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public:
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PositionIterator() : m_current() {}
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PositionIterator(NodeImpl *node, long offset) : m_current(node, offset) {}
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PositionIterator(const Position &o) : m_current(o) {}
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Position current() const { return m_current; }
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Position previous() { return m_current = peekPrevious(); }
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Position next() { return m_current = peekNext(); }
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Position peekPrevious() const;
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Position peekNext() const;
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void setPosition(const Position &pos) { m_current = pos; }
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bool atStart() const;
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bool atEnd() const;
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bool isEmpty() const { return m_current.isEmpty(); }
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private:
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Position m_current;
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};
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} // namespace DOM
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#endif // _PositionIterator_h_
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