[6] | 1 | module m_dom_node |
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| 2 | |
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| 3 | use m_dom_types |
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| 4 | use m_dom_nodelist |
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| 5 | use m_dom_namednodemap |
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| 6 | use m_dom_debug |
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| 7 | use m_dom_error |
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| 8 | |
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| 9 | use m_strings |
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| 10 | |
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| 11 | private |
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| 12 | |
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| 13 | !------------------------------------------------------- |
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| 14 | ! METHODS FOR NODES |
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| 15 | !------------------------------------------------------- |
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| 16 | |
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| 17 | public :: getNodeName |
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| 18 | public :: getNodevalue |
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| 19 | public :: getNodeType |
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| 20 | public :: hasChildNodes |
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| 21 | public :: hasAttributes |
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| 22 | public :: getParentNode |
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| 23 | public :: getFirstChild |
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| 24 | public :: getLastChild |
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| 25 | public :: getNextSibling |
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| 26 | public :: getPreviousSibling |
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| 27 | public :: getOwnerDocument |
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| 28 | public :: getAttributes |
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| 29 | public :: getChildNodes |
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| 30 | public :: setNodeValue |
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| 31 | public :: appendChild |
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| 32 | public :: removeChild |
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| 33 | public :: replaceChild |
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| 34 | public :: cloneNode |
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| 35 | public :: isSameNode |
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| 36 | public :: insertBefore |
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| 37 | |
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| 38 | private :: name_len, value_len |
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| 39 | |
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| 40 | CONTAINS |
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| 41 | |
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| 42 | pure function name_len(node) |
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| 43 | type(fnode), pointer :: node |
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| 44 | integer :: name_len |
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| 45 | |
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| 46 | name_len = len_trim(node % nodeName) |
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| 47 | |
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| 48 | end function name_len |
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| 49 | |
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| 50 | pure function value_len(node) |
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| 51 | type(fnode), pointer :: node |
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| 52 | integer :: value_len |
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| 53 | |
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| 54 | value_len = len_trim(node % nodeValue) |
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| 55 | |
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| 56 | end function value_len |
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| 57 | |
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| 58 | !----------------------------------------------------------- |
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| 59 | ! METHODS FOR NODES |
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| 60 | !----------------------------------------------------------- |
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| 61 | function getNodeName(node) |
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| 62 | |
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| 63 | type(fnode), pointer :: node |
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| 64 | ! character(len=len_trim(node%nodeName)) :: getNodeName |
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| 65 | type(string) :: getNodeName |
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| 66 | if (.not. associated(node)) & |
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| 67 | call dom_error("getNodeName",0,"Node not allocated") |
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| 68 | getNodeName = node % nodeName |
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| 69 | |
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| 70 | end function getNodeName |
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| 71 | |
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| 72 | !----------------------------------------------------------- |
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| 73 | |
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| 74 | function getNodeValue(node) |
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| 75 | |
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| 76 | type(fnode), pointer :: node |
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| 77 | ! character(len=len_trim(node%nodeValue)) :: getNodeValue |
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| 78 | type(string) :: getNodeValue |
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| 79 | |
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| 80 | if (.not. associated(node)) & |
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| 81 | call dom_error("getNodeValue",0,"Node not allocated") |
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| 82 | getNodeValue = node % nodeValue |
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| 83 | |
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| 84 | end function getNodeValue |
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| 85 | |
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| 86 | !----------------------------------------------------------- |
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| 87 | |
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| 88 | function getNodeType(node) |
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| 89 | |
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| 90 | type(fnode), pointer :: node |
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| 91 | integer :: getNodeType |
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| 92 | |
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| 93 | if (.not. associated(node)) call dom_error("getNodeType",0,"Node not allocated") |
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| 94 | getNodeType = node % nodeType |
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| 95 | |
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| 96 | end function getNodeTYpe |
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| 97 | |
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| 98 | !----------------------------------------------------------- |
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| 99 | |
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| 100 | function hasChildNodes(node) |
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| 101 | |
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| 102 | type(fnode), pointer :: node |
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| 103 | logical :: hasChildNodes |
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| 104 | |
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| 105 | if (.not. associated(node)) call dom_error("hasChildNodes",0,"Node not allocated") |
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| 106 | hasChildNodes = associated(node % firstChild) |
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| 107 | |
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| 108 | end function hasChildNodes |
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| 109 | |
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| 110 | !----------------------------------------------------------- |
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| 111 | |
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| 112 | function hasAttributes(node) |
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| 113 | |
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| 114 | type(fnode), pointer :: node |
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| 115 | logical :: hasAttributes |
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| 116 | |
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| 117 | hasAttributes = .false. |
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| 118 | if (.not. associated(node)) call dom_error("hasAttributes",0,"Node not allocated") |
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| 119 | if (node % nodeType /= ELEMENT_NODE) RETURN |
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| 120 | if ( getLength(node%attributes) > 0) hasAttributes = .true. |
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| 121 | |
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| 122 | end function hasAttributes |
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| 123 | |
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| 124 | !----------------------------------------------------------- |
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| 125 | |
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| 126 | function getParentNode(node) |
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| 127 | |
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| 128 | type(fnode), pointer :: node |
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| 129 | type(fnode), pointer :: getParentNode |
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| 130 | |
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| 131 | if (.not. associated(node)) call dom_error("getParentNode",0,"Node not allocated") |
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| 132 | getParentNode => node % parentNode |
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| 133 | |
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| 134 | end function getParentNode |
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| 135 | |
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| 136 | !----------------------------------------------------------- |
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| 137 | |
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| 138 | function getFirstChild(node) |
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| 139 | |
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| 140 | type(fnode), pointer :: node |
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| 141 | type(fnode), pointer :: getFirstChild |
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| 142 | |
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| 143 | if (.not. associated(node)) call dom_error("getFirstChild",0,"Node not allocated") |
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| 144 | getFirstChild => node % firstChild |
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| 145 | |
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| 146 | end function getFirstChild |
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| 147 | |
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| 148 | !----------------------------------------------------------- |
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| 149 | |
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| 150 | function getLastChild(node) |
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| 151 | |
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| 152 | type(fnode), pointer :: node |
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| 153 | type(fnode), pointer :: getLastChild |
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| 154 | |
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| 155 | if (.not. associated(node)) call dom_error("getLastChild",0,"Node not allocated") |
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| 156 | getLastChild => node % lastChild |
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| 157 | |
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| 158 | end function getLastChild |
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| 159 | |
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| 160 | !----------------------------------------------------------- |
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| 161 | |
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| 162 | function getNextSibling(node) |
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| 163 | |
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| 164 | type(fnode), pointer :: node |
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| 165 | type(fnode), pointer :: getNextSibling |
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| 166 | |
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| 167 | if (.not. associated(node)) call dom_error("getNextSibling",0,"Node not allocated") |
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| 168 | getNextSibling => node % nextSibling |
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| 169 | |
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| 170 | end function getNextSibling |
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| 171 | |
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| 172 | !----------------------------------------------------------- |
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| 173 | |
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| 174 | function getPreviousSibling(node) |
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| 175 | |
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| 176 | type(fnode), pointer :: node |
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| 177 | type(fnode), pointer :: getPreviousSibling |
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| 178 | |
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| 179 | if (.not. associated(node)) call dom_error("getPreviousSibling",0,"Node not allocated") |
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| 180 | getPreviousSibling => node % previousSibling |
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| 181 | |
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| 182 | end function getPreviousSibling |
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| 183 | |
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| 184 | !----------------------------------------------------------- |
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| 185 | |
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| 186 | function getOwnerDocument(node) |
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| 187 | |
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| 188 | type(fnode), pointer :: node |
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| 189 | type(fnode), pointer :: getOwnerDocument |
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| 190 | |
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| 191 | if (.not. associated(node)) call dom_error("getOwnerDocument",0,"Node not allocated") |
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| 192 | getOwnerDocument => node % ownerDocument |
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| 193 | |
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| 194 | end function getOwnerDocument |
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| 195 | |
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| 196 | !----------------------------------------------------------- |
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| 197 | |
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| 198 | function getChildNodes(node) result(nodelist) |
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| 199 | |
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| 200 | type(fnode), pointer :: node |
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| 201 | type(fnodeList), pointer :: nodelist !!! NB nodeList |
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| 202 | |
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| 203 | type(fnode), pointer :: np |
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| 204 | |
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| 205 | if (.not. associated(node)) call dom_error("getChildNodes",0,"Node not allocated") |
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| 206 | nodelist => null() |
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| 207 | np => node%firstChild |
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| 208 | do |
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| 209 | if (.not. associated(np)) exit |
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| 210 | call append(nodelist,np) |
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| 211 | np => np%nextSibling |
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| 212 | enddo |
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| 213 | |
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| 214 | end function getChildNodes |
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| 215 | |
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| 216 | !----------------------------------------------------------- |
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| 217 | |
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| 218 | function getAttributes(node) |
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| 219 | |
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| 220 | type(fnode), pointer :: node |
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| 221 | type(fnamedNodeMap), pointer :: getAttributes !!! NB namedNodeMap |
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| 222 | |
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| 223 | if (.not. associated(node)) & |
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| 224 | call dom_error("getAttributes",0,"Node not allocated") |
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| 225 | getAttributes => node % attributes |
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| 226 | |
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| 227 | end function getAttributes |
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| 228 | |
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| 229 | !----------------------------------------------------------- |
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| 230 | |
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| 231 | subroutine setNodeValue(node, value) |
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| 232 | |
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| 233 | type(fnode), pointer :: node |
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| 234 | character(len=*), intent(in) :: value |
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| 235 | |
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| 236 | if (.not. associated(node)) & |
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| 237 | call dom_error("setNodeValue",0,"Node not allocated") |
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| 238 | |
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| 239 | select case(node % nodeType) |
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| 240 | |
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| 241 | case(ATTRIBUTE_NODE) |
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| 242 | node % nodeValue = trim(value) !!AG: use just value ?? |
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| 243 | |
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| 244 | case(COMMENT_NODE) |
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| 245 | node % nodeValue = value |
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| 246 | |
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| 247 | case(TEXT_NODE) |
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| 248 | node % nodeValue = value |
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| 249 | |
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| 250 | case(PROCESSING_INSTRUCTION_NODE) |
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| 251 | node % nodeValue = value |
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| 252 | |
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| 253 | case(CDATA_SECTION_NODE) |
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| 254 | node % nodeValue = value |
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| 255 | |
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| 256 | end select |
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| 257 | |
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| 258 | end subroutine setNodeValue |
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| 259 | |
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| 260 | !----------------------------------------------------------- |
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| 261 | |
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| 262 | function appendChild(node, newChild) |
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| 263 | type(fnode), pointer :: node |
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| 264 | type(fnode), pointer :: newChild |
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| 265 | type(fnode), pointer :: appendChild |
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| 266 | |
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| 267 | if (.not. associated(node)) & |
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| 268 | call dom_error("appendChild",0,"Node not allocated") |
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| 269 | |
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| 270 | if ((node%nodeType /= ELEMENT_NODE) .and. & |
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| 271 | (node%nodeType /= DOCUMENT_NODE)) & |
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| 272 | call dom_error("appendChild",HIERARCHY_REQUEST_ERR, & |
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| 273 | "this node cannot have children") |
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| 274 | |
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| 275 | if (.not.(associated(node % firstChild))) then |
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| 276 | node % firstChild => newChild |
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| 277 | else |
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| 278 | newChild % previousSibling => node % lastChild |
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| 279 | node % lastChild % nextSibling => newChild |
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| 280 | endif |
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| 281 | |
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| 282 | node % lastChild => newChild |
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| 283 | newChild % parentNode => node |
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| 284 | newChild % ownerDocument => node % ownerDocument |
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| 285 | node%nc = node%nc + 1 |
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| 286 | |
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| 287 | appendChild => newChild |
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| 288 | |
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| 289 | end function appendChild |
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| 290 | |
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| 291 | !----------------------------------------------------------- |
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| 292 | |
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| 293 | function removeChild(node, oldChild) |
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| 294 | |
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| 295 | type(fnode), pointer :: removeChild |
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| 296 | type(fnode), pointer :: node |
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| 297 | type(fnode), pointer :: oldChild |
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| 298 | type(fnode), pointer :: np |
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| 299 | |
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| 300 | if (.not. associated(node)) call dom_error("removeChild",0,"Node not allocated") |
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| 301 | np => node % firstChild |
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| 302 | |
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| 303 | do while (associated(np)) |
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| 304 | if (associated(np, oldChild)) then ! Two argument form |
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| 305 | ! of associated() |
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| 306 | if (associated(np,node%firstChild)) then |
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| 307 | node%firstChild => np%nextSibling |
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| 308 | if (associated(np % nextSibling)) then |
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| 309 | np%nextSibling % previousSibling => null() |
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| 310 | else |
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| 311 | node%lastChild => null() ! there was just 1 node |
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| 312 | endif |
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| 313 | else if (associated(np,node%lastChild)) then |
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| 314 | ! one-node-only case covered above |
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| 315 | node%lastChild => np%previousSibling |
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| 316 | np%previousSibling%nextSibling => null() |
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| 317 | else |
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| 318 | np % previousSibling % nextSibling => np % nextSibling |
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| 319 | np % nextSibling % previousSibling => np % previousSibling |
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| 320 | endif |
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| 321 | node%nc = node%nc -1 |
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| 322 | np % previousSibling => null() ! Are these necessary? |
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| 323 | np % nextSibling => null() |
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| 324 | np % parentNode => null() |
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| 325 | removeChild => oldChild |
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| 326 | RETURN |
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| 327 | endif |
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| 328 | np => np % nextSibling |
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| 329 | enddo |
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| 330 | |
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| 331 | call dom_error("removeChild",NOT_FOUND_ERR,"oldChild not found") |
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| 332 | |
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| 333 | end function removeChild |
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| 334 | |
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| 335 | !----------------------------------------------------------- |
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| 336 | |
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| 337 | function replaceChild(node, newChild, oldChild) |
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| 338 | |
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| 339 | type(fnode), pointer :: replaceChild |
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| 340 | type(fnode), pointer :: node |
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| 341 | type(fnode), pointer :: newChild |
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| 342 | type(fnode), pointer :: oldChild |
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| 343 | |
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| 344 | type(fnode), pointer :: np |
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| 345 | |
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| 346 | if (.not. associated(node)) call dom_error("replaceChild",0,"Node not allocated") |
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| 347 | if ((node%nodeType /= ELEMENT_NODE) .and. & |
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| 348 | (node%nodeType /= DOCUMENT_NODE)) & |
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| 349 | call dom_error("replaceChild",HIERARCHY_REQUEST_ERR, & |
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| 350 | "this node cannot have children") |
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| 351 | |
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| 352 | np => node % firstChild |
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| 353 | |
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| 354 | do while (associated(np)) |
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| 355 | if (associated(np, oldChild)) then |
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| 356 | if (associated(np,node%firstChild)) then |
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| 357 | node%firstChild => newChild |
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| 358 | if (associated(np % nextSibling)) then |
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| 359 | oldChild%nextSibling % previousSibling => newChild |
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| 360 | else |
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| 361 | node%lastChild => newChild ! there was just 1 node |
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| 362 | endif |
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| 363 | else if (associated(np,node%lastChild)) then |
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| 364 | ! one-node-only case covered above |
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| 365 | node%lastChild => newChild |
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| 366 | oldChild%previousSibling%nextSibling => newChild |
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| 367 | else |
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| 368 | oldChild % previousSibling % nextSibling => newChild |
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| 369 | oldChild % nextSibling % previousSibling => newChild |
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| 370 | endif |
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| 371 | |
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| 372 | newChild % parentNode => oldChild % parentNode |
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| 373 | newChild % nextSibling => oldChild % nextSibling |
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| 374 | newChild % previousSibling => oldChild % previousSibling |
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| 375 | replaceChild => oldChild |
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| 376 | RETURN |
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| 377 | endif |
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| 378 | np => np % nextSibling |
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| 379 | enddo |
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| 380 | |
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| 381 | call dom_error("replaceChild",NOT_FOUND_ERR,"oldChild not found") |
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| 382 | |
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| 383 | end function replaceChild |
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| 384 | |
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| 385 | !----------------------------------------------------------- |
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| 386 | |
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| 387 | function cloneNode(node, deep) |
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| 388 | type(fnode), pointer :: cloneNode |
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| 389 | type(fnode), pointer :: node |
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| 390 | |
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| 391 | logical, optional :: deep |
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| 392 | logical :: do_children |
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| 393 | |
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| 394 | type(fnode), pointer :: original |
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| 395 | type(fnode), pointer :: parent_clone |
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| 396 | |
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| 397 | if (.not. associated(node)) call dom_error("cloneNode",0,"Node not allocated") |
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| 398 | |
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| 399 | do_children = .false. |
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| 400 | if (present(deep)) then |
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| 401 | do_children = deep |
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| 402 | endif |
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| 403 | |
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| 404 | original => node ! Keep node |
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| 405 | cloneNode => null() |
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| 406 | parent_clone => null() |
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| 407 | call recursive_clone(original, cloneNode) |
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| 408 | cloneNode%parentNode => null() ! as per specs , superfÃluous |
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| 409 | |
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| 410 | Contains |
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| 411 | |
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| 412 | recursive subroutine recursive_clone(original, cloneNode) |
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| 413 | type(fnode), pointer :: original ! node to clone |
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| 414 | type(fnode), pointer :: cloneNode ! new node |
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| 415 | |
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| 416 | type(fnode), pointer :: np, clone |
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| 417 | type(fnode), pointer :: previous_clone, attr, newattr |
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| 418 | type(string) :: name |
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| 419 | logical :: first_sibling |
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| 420 | integer :: i |
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| 421 | |
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| 422 | np => original |
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| 423 | previous_clone => null() |
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| 424 | first_sibling = .true. |
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| 425 | do |
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| 426 | |
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| 427 | ! Keep going across siblings |
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| 428 | ! (2nd and lower levels only) |
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| 429 | |
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| 430 | if (.not.(associated(np))) EXIT |
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| 431 | |
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| 432 | |
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| 433 | !----------------------------------------------------! |
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| 434 | clone => createNode() |
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| 435 | if (first_sibling) then |
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| 436 | cloneNode => clone ! Rest of siblings are chained |
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| 437 | ! automatically, but must not |
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| 438 | ! be aliases of cloneNode !! |
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| 439 | first_sibling = .false. |
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| 440 | endif |
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| 441 | clone % nodeName = np % nodeName |
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| 442 | name = np%nodeName |
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| 443 | if (dom_debug) print *, "Cloning ", char(name) |
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| 444 | clone % nodeValue = np % nodeValue |
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| 445 | clone % nodeType = np % nodeType |
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| 446 | clone % ownerDocument => np % ownerDocument |
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| 447 | clone % parentNode => parent_clone |
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| 448 | ! |
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| 449 | ! always deep copy attributes, as per specs |
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| 450 | ! Note that this will not work for "deep" attributes, with |
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| 451 | ! hanging entity nodes, etc |
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| 452 | if (associated(np % attributes)) then |
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| 453 | do i = 0, getLength(np%attributes) - 1 |
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| 454 | attr => item(np%attributes,i) |
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| 455 | newattr => createNode() |
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| 456 | newattr%nodeName = getNodeName(attr) |
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| 457 | newattr%nodeValue = getNodeValue(attr) |
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| 458 | newattr%nodeType = ATTRIBUTE_NODE |
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| 459 | call append(clone%attributes, newattr) |
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| 460 | enddo |
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| 461 | endif |
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| 462 | |
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| 463 | ! Deal with first sibling |
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| 464 | if (associated(previous_clone)) then |
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| 465 | if (dom_debug) print *, "linking to previous sibling" |
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| 466 | previous_clone%nextSibling => clone |
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| 467 | clone%previousSibling => previous_clone |
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| 468 | else |
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| 469 | if (dom_debug) print *, "marking as first child of parent" |
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| 470 | if (associated(parent_clone)) & |
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| 471 | parent_clone%firstChild => clone |
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| 472 | endif |
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| 473 | |
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| 474 | ! Deal with last sibling |
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| 475 | if (.not. associated(np%nextSibling)) then |
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| 476 | if (dom_debug) print *, "this is the last sibling" |
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| 477 | if (associated(parent_clone)) then |
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| 478 | if (dom_debug) print *, "marking as last child of parent" |
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| 479 | parent_clone%lastChild => clone |
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| 480 | endif |
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| 481 | endif |
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| 482 | |
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| 483 | if (do_children .and. associated(np%firstChild)) then |
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| 484 | parent_clone => clone |
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| 485 | if (dom_debug) print *, ".... going for its children" |
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| 486 | call recursive_clone(np%firstChild,clone%firstChild) |
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| 487 | parent_clone => clone%parentNode |
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| 488 | endif |
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| 489 | |
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| 490 | if (associated(np,node)) then |
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| 491 | if (dom_debug) print *, "No more siblings of ", char(name) |
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| 492 | EXIT ! no siblings of master node |
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| 493 | endif |
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| 494 | np => np % nextSibling |
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| 495 | previous_clone => clone |
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| 496 | |
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| 497 | enddo |
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| 498 | |
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| 499 | end subroutine recursive_clone |
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| 500 | |
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| 501 | end function cloneNode |
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| 502 | |
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| 503 | !----------------------------------------------------------- |
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| 504 | |
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| 505 | function isSameNode(node1, node2) ! DOM 3.0 |
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| 506 | type(fnode), pointer :: node1 |
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| 507 | type(fnode), pointer :: node2 |
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| 508 | logical :: isSameNode |
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| 509 | |
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| 510 | isSameNode = associated(node1, node2) |
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| 511 | |
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| 512 | end function isSameNode |
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| 513 | |
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| 514 | !----------------------------------------------------------- |
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| 515 | |
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| 516 | function insertBefore(node, newChild, refChild) |
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| 517 | type(fnode), pointer :: insertBefore |
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| 518 | type(fnode), pointer :: node |
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| 519 | type(fnode), pointer :: newChild |
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| 520 | type(fnode), pointer :: refChild |
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| 521 | type(fnode), pointer :: np |
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| 522 | |
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| 523 | if (.not. associated(node)) call dom_error("insertBefore",0,"Node not allocated") |
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| 524 | if ((node%nodeType /= ELEMENT_NODE) .and. & |
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| 525 | (node%nodeType /= DOCUMENT_NODE)) & |
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| 526 | call dom_error("insertBefore",HIERARCHY_REQUEST_ERR, & |
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| 527 | "cannot insert node here") |
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| 528 | |
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| 529 | if (.not.associated(refChild)) then |
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| 530 | insertBefore => appendChild(node, newChild) |
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| 531 | RETURN |
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| 532 | endif |
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| 533 | |
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| 534 | np => node % firstChild |
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| 535 | do while (associated(np)) |
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| 536 | if (associated(np, refChild)) then |
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| 537 | if (associated(np,node%firstChild)) then |
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| 538 | node%firstChild => newChild |
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| 539 | else |
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| 540 | refChild%previousSibling%nextSibling => newChild |
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| 541 | endif |
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| 542 | |
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| 543 | refChild % previousSibling => newChild |
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| 544 | newChild % nextSibling => refChild |
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| 545 | newChild % parentNode => node |
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| 546 | newChild % ownerDocument => refChild % ownerDocument |
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| 547 | insertBefore => newChild |
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| 548 | RETURN |
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| 549 | endif |
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| 550 | np => np % nextSibling |
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| 551 | enddo |
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| 552 | |
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| 553 | call dom_error("insertBefore",NOT_FOUND_ERR,"refChild not found") |
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| 554 | |
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| 555 | end function insertBefore |
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| 556 | |
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| 557 | !---------------------------------------------------------------------- |
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| 558 | |
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| 559 | end module m_dom_node |
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| 560 | |
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