[1022] | 1 | #ifndef RAPIDXML_ITERATORS_HPP_INCLUDED |
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| 2 | #define RAPIDXML_ITERATORS_HPP_INCLUDED |
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| 3 | |
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| 4 | // Copyright (C) 2006, 2009 Marcin Kalicinski |
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| 5 | // Version 1.13 |
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| 6 | // Revision $DateTime: 2009/05/13 01:46:17 $ |
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| 7 | //! \file rapidxml_iterators.hpp This file contains rapidxml iterators |
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| 8 | |
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| 9 | #include "rapidxml.hpp" |
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| 10 | |
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| 11 | namespace rapidxml |
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| 12 | { |
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| 13 | |
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| 14 | //! Iterator of child nodes of xml_node |
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| 15 | template<class Ch> |
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| 16 | class node_iterator |
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| 17 | { |
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| 18 | |
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| 19 | public: |
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| 20 | |
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| 21 | typedef typename xml_node<Ch> value_type; |
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| 22 | typedef typename xml_node<Ch> &reference; |
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| 23 | typedef typename xml_node<Ch> *pointer; |
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| 24 | typedef std::ptrdiff_t difference_type; |
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| 25 | typedef std::bidirectional_iterator_tag iterator_category; |
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| 26 | |
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| 27 | node_iterator() |
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| 28 | : m_node(0) |
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| 29 | { |
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| 30 | } |
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| 31 | |
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| 32 | node_iterator(xml_node<Ch> *node) |
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| 33 | : m_node(node->first_node()) |
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| 34 | { |
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| 35 | } |
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| 36 | |
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| 37 | reference operator *() const |
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| 38 | { |
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| 39 | assert(m_node); |
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| 40 | return *m_node; |
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| 41 | } |
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| 42 | |
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| 43 | pointer operator->() const |
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| 44 | { |
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| 45 | assert(m_node); |
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| 46 | return m_node; |
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| 47 | } |
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| 48 | |
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| 49 | node_iterator& operator++() |
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| 50 | { |
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| 51 | assert(m_node); |
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| 52 | m_node = m_node->next_sibling(); |
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| 53 | return *this; |
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| 54 | } |
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| 55 | |
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| 56 | node_iterator operator++(int) |
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| 57 | { |
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| 58 | node_iterator tmp = *this; |
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| 59 | ++this; |
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| 60 | return tmp; |
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| 61 | } |
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| 62 | |
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| 63 | node_iterator& operator--() |
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| 64 | { |
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| 65 | assert(m_node && m_node->previous_sibling()); |
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| 66 | m_node = m_node->previous_sibling(); |
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| 67 | return *this; |
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| 68 | } |
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| 69 | |
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| 70 | node_iterator operator--(int) |
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| 71 | { |
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| 72 | node_iterator tmp = *this; |
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| 73 | ++this; |
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| 74 | return tmp; |
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| 75 | } |
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| 76 | |
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| 77 | bool operator ==(const node_iterator<Ch> &rhs) |
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| 78 | { |
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| 79 | return m_node == rhs.m_node; |
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| 80 | } |
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| 81 | |
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| 82 | bool operator !=(const node_iterator<Ch> &rhs) |
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| 83 | { |
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| 84 | return m_node != rhs.m_node; |
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| 85 | } |
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| 86 | |
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| 87 | private: |
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| 88 | |
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| 89 | xml_node<Ch> *m_node; |
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| 90 | |
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| 91 | }; |
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| 92 | |
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| 93 | //! Iterator of child attributes of xml_node |
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| 94 | template<class Ch> |
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| 95 | class attribute_iterator |
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| 96 | { |
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| 97 | |
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| 98 | public: |
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| 99 | |
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| 100 | typedef typename xml_attribute<Ch> value_type; |
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| 101 | typedef typename xml_attribute<Ch> &reference; |
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| 102 | typedef typename xml_attribute<Ch> *pointer; |
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| 103 | typedef std::ptrdiff_t difference_type; |
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| 104 | typedef std::bidirectional_iterator_tag iterator_category; |
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| 105 | |
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| 106 | attribute_iterator() |
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| 107 | : m_attribute(0) |
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| 108 | { |
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| 109 | } |
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| 110 | |
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| 111 | attribute_iterator(xml_node<Ch> *node) |
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| 112 | : m_attribute(node->first_attribute()) |
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| 113 | { |
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| 114 | } |
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| 115 | |
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| 116 | reference operator *() const |
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| 117 | { |
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| 118 | assert(m_attribute); |
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| 119 | return *m_attribute; |
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| 120 | } |
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| 121 | |
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| 122 | pointer operator->() const |
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| 123 | { |
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| 124 | assert(m_attribute); |
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| 125 | return m_attribute; |
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| 126 | } |
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| 127 | |
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| 128 | attribute_iterator& operator++() |
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| 129 | { |
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| 130 | assert(m_attribute); |
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| 131 | m_attribute = m_attribute->next_attribute(); |
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| 132 | return *this; |
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| 133 | } |
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| 134 | |
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| 135 | attribute_iterator operator++(int) |
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| 136 | { |
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| 137 | attribute_iterator tmp = *this; |
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| 138 | ++this; |
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| 139 | return tmp; |
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| 140 | } |
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| 141 | |
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| 142 | attribute_iterator& operator--() |
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| 143 | { |
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| 144 | assert(m_attribute && m_attribute->previous_attribute()); |
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| 145 | m_attribute = m_attribute->previous_attribute(); |
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| 146 | return *this; |
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| 147 | } |
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| 148 | |
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| 149 | attribute_iterator operator--(int) |
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| 150 | { |
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| 151 | attribute_iterator tmp = *this; |
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| 152 | ++this; |
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| 153 | return tmp; |
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| 154 | } |
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| 155 | |
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| 156 | bool operator ==(const attribute_iterator<Ch> &rhs) |
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| 157 | { |
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| 158 | return m_attribute == rhs.m_attribute; |
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| 159 | } |
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| 160 | |
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| 161 | bool operator !=(const attribute_iterator<Ch> &rhs) |
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| 162 | { |
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| 163 | return m_attribute != rhs.m_attribute; |
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| 164 | } |
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| 165 | |
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| 166 | private: |
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| 167 | |
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| 168 | xml_attribute<Ch> *m_attribute; |
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| 169 | |
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| 170 | }; |
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| 171 | |
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| 172 | } |
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| 173 | |
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| 174 | #endif |
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