rapidxml_iterators.hpp
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#ifndef RAPIDXML_ITERATORS_HPP_INCLUDED
#define RAPIDXML_ITERATORS_HPP_INCLUDED
// Copyright (C) 2006, 2009 Marcin Kalicinski
// Version 1.13
// Revision $DateTime: 2009/05/13 01:46:17 $
//! \file rapidxml_iterators.hpp This file contains rapidxml iterators
#include "rapidxml.hpp"
namespace rapidxml
{
//! Iterator of child nodes of xml_node
template<class Ch>
class node_iterator
{
public:
typedef xml_node<Ch> value_type;
typedef value_type &reference;
typedef value_type *pointer;
typedef std::ptrdiff_t difference_type;
typedef std::bidirectional_iterator_tag iterator_category;
node_iterator()
: m_node(0)
{
}
node_iterator(xml_node<Ch> *node)
: m_node(node->first_node())
{
}
reference operator *() const
{
assert(m_node);
return *m_node;
}
pointer operator->() const
{
assert(m_node);
return m_node;
}
node_iterator& operator++()
{
assert(m_node);
m_node = m_node->next_sibling();
return *this;
}
node_iterator operator++(int)
{
node_iterator tmp = *this;
++this;
return tmp;
}
node_iterator& operator--()
{
assert(m_node && m_node->previous_sibling());
m_node = m_node->previous_sibling();
return *this;
}
node_iterator operator--(int)
{
node_iterator tmp = *this;
++this;
return tmp;
}
bool operator ==(const node_iterator<Ch> &rhs)
{
return m_node == rhs.m_node;
}
bool operator !=(const node_iterator<Ch> &rhs)
{
return m_node != rhs.m_node;
}
private:
xml_node<Ch> *m_node;
};
//! Iterator of child attributes of xml_node
template<class Ch>
class attribute_iterator
{
public:
typedef xml_attribute<Ch> value_type;
typedef value_type &reference;
typedef value_type *pointer;
typedef std::ptrdiff_t difference_type;
typedef std::bidirectional_iterator_tag iterator_category;
attribute_iterator()
: m_attribute(0)
{
}
attribute_iterator(xml_node<Ch> *node)
: m_attribute(node->first_attribute())
{
}
reference operator *() const
{
assert(m_attribute);
return *m_attribute;
}
pointer operator->() const
{
assert(m_attribute);
return m_attribute;
}
attribute_iterator& operator++()
{
assert(m_attribute);
m_attribute = m_attribute->next_attribute();
return *this;
}
attribute_iterator operator++(int)
{
attribute_iterator tmp = *this;
++this;
return tmp;
}
attribute_iterator& operator--()
{
assert(m_attribute && m_attribute->previous_attribute());
m_attribute = m_attribute->previous_attribute();
return *this;
}
attribute_iterator operator--(int)
{
attribute_iterator tmp = *this;
++this;
return tmp;
}
bool operator ==(const attribute_iterator<Ch> &rhs)
{
return m_attribute == rhs.m_attribute;
}
bool operator !=(const attribute_iterator<Ch> &rhs)
{
return m_attribute != rhs.m_attribute;
}
private:
xml_attribute<Ch> *m_attribute;
};
}
#endif