@@ 1133-1150 (lines=18) @@ | ||
1130 | * |
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1131 | * @return null |
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1132 | */ |
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1133 | public function next_sibling() |
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1134 | { |
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1135 | if ($this->parent === null) { |
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1136 | return null; |
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1137 | } |
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1138 | ||
1139 | $idx = 0; |
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1140 | $count = count($this->parent->children); |
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1141 | while ($idx < $count && $this !== $this->parent->children[$idx]) { |
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1142 | ++$idx; |
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1143 | } |
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1144 | ||
1145 | if (++$idx >= $count) { |
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1146 | return null; |
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1147 | } |
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1148 | ||
1149 | return $this->parent->children[$idx]; |
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1150 | } |
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1151 | ||
1152 | /** |
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1153 | * previous sibling |
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@@ 1167-1184 (lines=18) @@ | ||
1164 | * |
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1165 | * @return null|\voku\helper\SimpleHtmlDomNode |
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1166 | */ |
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1167 | public function prev_sibling() |
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1168 | { |
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1169 | if ($this->parent === null) { |
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1170 | return null; |
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1171 | } |
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1172 | ||
1173 | $idx = 0; |
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1174 | $count = count($this->parent->children); |
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1175 | while ($idx < $count && $this !== $this->parent->children[$idx]) { |
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1176 | ++$idx; |
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1177 | } |
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1178 | ||
1179 | if (--$idx < 0) { |
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1180 | return null; |
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1181 | } |
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1182 | ||
1183 | return $this->parent->children[$idx]; |
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1184 | } |
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1185 | ||
1186 | /** |
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1187 | * has child nodes |