arabica/include/DOM/Traversal/NodeIterator.hpp

97 lines
2.8 KiB
C++

#ifndef JEZUK_DOM_TRAVERSAL_NODEITERATOR_H
#define JEZUK_DOM_TRAVERSAL_NODEITERATOR_H
/////////////////////////////////////////
// C++ DOM Traversal Implementation
//
// $Id$
/////////////////////////////////////////
#include <DOM/Traversal/NodeFilter.hpp>
#include <DOM/Node.hpp>
namespace Arabica
{
namespace DOM
{
namespace Traversal
{
template<class stringT, class string_adaptorT> class NodeIterator_impl;
template<class stringT, class string_adaptorT = Arabica::default_string_adaptor<stringT> >
class NodeIterator : protected DOM::Proxy<NodeIterator_impl<stringT, string_adaptorT> >
{
public:
typedef NodeFilter<stringT, string_adaptorT> NodeFilterT;
typedef NodeIterator_impl<stringT, string_adaptorT> NodeIterator_implT;
typedef DOM::Node<stringT, string_adaptorT> NodeT;
private:
typedef DOM::Proxy<NodeIterator_implT> proxy_t;
public:
NodeIterator() : proxy_t(0) { }
explicit NodeIterator(NodeIterator_implT* const impl) : proxy_t(impl) { }
NodeIterator(const NodeIterator& rhs) : proxy_t(rhs) { }
virtual ~NodeIterator() { }
bool operator==(const NodeIterator& rhs) const { return proxy_t::operator==(rhs); }
bool operator!=(const NodeIterator& rhs) const { return proxy_t::operator!=(rhs); }
bool operator==(int dummy) const { return proxy_t::operator==(dummy); }
bool operator!=(int dummy) const { return proxy_t::operator!=(dummy); }
NodeIterator& operator=(const NodeIterator& rhs)
{
proxy_t::operator=(rhs);
return *this;
} // operator=
///////////////////////////////////////////////////////////////
// NodeIterator methods
NodeT getRoot() const { return proxy_t::impl()->getRoot(); }
unsigned long getWhatToShow() const { return proxy_t::impl()->getWhatToShow(); }
NodeFilterT* getFilter() const { return proxy_t::impl()->getFilter(); }
bool getExpandEntityReferences() const { return proxy_t::impl()->getExpandEntityReferences(); }
NodeT nextNode() { return proxy_t::impl()->nextNode(); }
NodeT previousNode() { return proxy_t::impl()->prevNode(); }
void detach() { return proxy_t::impl()->detach(); }
}; // class NodeIterator
////////////////////////////////////////////////
template<class stringT, class string_adaptorT>
class NodeIterator_impl
{
public:
typedef NodeFilter<stringT, string_adaptorT> NodeFilterT;
typedef DOM::Node<stringT, string_adaptorT> NodeT;
virtual NodeT getRoot() const = 0;
virtual unsigned long getWhatToShow() const = 0;
virtual NodeFilterT* getFilter() const = 0;
virtual bool getExpandEntityReferences() const = 0;
virtual NodeT nextNode() = 0;
virtual NodeT previousNode() = 0;
virtual void detach() = 0;
}; // class NodeIterator_impl
} // namespace Traversal
} // namespace DOM
} // namespace Arabica
#endif
// end of file