--- /dev/null	Thu Jan 01 00:00:00 1970 +0000
+++ b/webengine/osswebengine/WebCore/xml/XPathExpressionNode.h	Mon Mar 30 12:54:55 2009 +0300
@@ -0,0 +1,86 @@
+/*
+ * Copyright 2005 Frerich Raabe <raabe@kde.org>
+ * Copyright (C) 2006 Apple Computer, Inc.
+ *
+ * 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 THE AUTHOR ``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 THE AUTHOR 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 XPathExpressionNode_h
+#define XPathExpressionNode_h
+
+#if ENABLE(XPATH)
+
+#include "StringHash.h"
+#include <wtf/HashMap.h>
+#include <wtf/Vector.h>
+
+namespace WebCore {
+
+    class Node;
+
+    namespace XPath {
+
+        class Value;
+        
+        struct EvaluationContext {
+            EvaluationContext() : node(0), size(0), position(0) { }
+
+            RefPtr<Node> node;
+            unsigned long size;
+            unsigned long position;
+            HashMap<String, String> variableBindings;
+
+        };
+
+        class ParseNode {
+        public:
+            virtual ~ParseNode() { }
+        };
+
+        class Expression : public ParseNode, Noncopyable {
+        public:
+            static EvaluationContext& evaluationContext();
+
+            Expression();
+            virtual ~Expression();
+
+            virtual Value evaluate() const = 0;
+
+            void addSubExpression(Expression* expr) { m_subExpressions.append(expr); }
+
+        protected:
+            unsigned subExprCount() const { return m_subExpressions.size(); }
+            Expression* subExpr(unsigned i) { return m_subExpressions[i]; }
+            const Expression* subExpr(unsigned i) const { return m_subExpressions[i]; }
+
+        private:
+            Vector<Expression*> m_subExpressions;
+        };
+
+    }
+
+}
+
+#endif // ENABLE(XPATH)
+
+#endif // EXPRESSION_H
+