author | Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com> |
Tue, 27 Apr 2010 17:46:17 +0300 | |
branch | RCL_3 |
changeset 38 | 4917f9bf7995 |
parent 0 | dd21522fd290 |
permissions | -rw-r--r-- |
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/* |
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* Copyright 2005 Frerich Raabe <raabe@kde.org> |
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* Copyright (C) 2006 Apple Computer, Inc. |
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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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* |
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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 THE AUTHOR ``AS IS'' AND ANY EXPRESS OR |
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* IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES |
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* OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED. |
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* IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR ANY DIRECT, INDIRECT, |
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* INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT |
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* NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, |
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* DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY |
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* THEORY 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 OF |
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* THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE. |
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*/ |
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#ifndef XPathExpressionNode_h |
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#define XPathExpressionNode_h |
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#if ENABLE(XPATH) |
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#include "StringHash.h" |
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#include <wtf/HashMap.h> |
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#include <wtf/Vector.h> |
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namespace WebCore { |
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class Node; |
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namespace XPath { |
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class Value; |
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struct EvaluationContext { |
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EvaluationContext() : node(0), size(0), position(0) { } |
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RefPtr<Node> node; |
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unsigned long size; |
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unsigned long position; |
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HashMap<String, String> variableBindings; |
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}; |
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class ParseNode { |
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public: |
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virtual ~ParseNode() { } |
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}; |
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class Expression : public ParseNode, Noncopyable { |
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public: |
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static EvaluationContext& evaluationContext(); |
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Expression(); |
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virtual ~Expression(); |
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virtual Value evaluate() const = 0; |
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void addSubExpression(Expression* expr) { m_subExpressions.append(expr); } |
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protected: |
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unsigned subExprCount() const { return m_subExpressions.size(); } |
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Expression* subExpr(unsigned i) { return m_subExpressions[i]; } |
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const Expression* subExpr(unsigned i) const { return m_subExpressions[i]; } |
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private: |
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Vector<Expression*> m_subExpressions; |
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}; |
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} |
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} |
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#endif // ENABLE(XPATH) |
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#endif // EXPRESSION_H |
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