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xpath_node.h

//  -*- c++ -*-

#ifndef XPATH_NODE_H
#define XPATH_NODE_H

#include <qvaluelist.h>
#include <dom/dom_node.h>

namespace XPath {

class QueryState;
class Value;

class XPathNode
{
public:
    enum NodeType {
        NullNode, AxisNode, BinaryOpNode, FunctionCallNode, LiteralNode,
        LocationPathNode, NodeTestNode, UnaryOpNode, VariableRefNode
    };

    XPathNode();
    XPathNode( const XPathNode &node );
    XPathNode( XPathNode::NodeType nodeType );
    virtual ~XPathNode();

    XPathNode::NodeType nodeType() const { return type; }

    virtual Value *evaluate( QueryState *state );

    virtual QString qstring() const;

private:
    NodeType type;
};

}; // namespace XPath

#endif // XPATH_NODE_H

// Local Variables:
// c-basic-offset: 4
// End:

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