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<?php |
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namespace Kaloa\Renderer\Xml\Rule; |
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use DOMDocument; |
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use DOMElement; |
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use DOMNode; |
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use DOMXPath; |
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/** |
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* |
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*/ |
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abstract class AbstractRule |
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{ |
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/** |
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* |
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* @var DOMDocument |
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*/ |
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private $document; |
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public function init() |
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{ |
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// nop |
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} |
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public function preSave() |
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{ |
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// nop |
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} |
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/** |
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* |
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* @param DOMDocument $document |
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*/ |
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public function setDocument(DOMDocument $document) |
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{ |
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$this->document = $document; |
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} |
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/** |
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* |
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* @return DOMDocument |
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*/ |
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protected function getDocument() |
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{ |
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return $this->document; |
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} |
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public function preRender() |
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{ |
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// nop |
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} |
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public function render() |
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{ |
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// nop |
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} |
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public function postRender() |
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{ |
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// nop |
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} |
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/** |
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* |
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* @param string $string |
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* @param int $flags |
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* @param string $charset |
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* @return string |
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*/ |
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protected function escape($string, $flags = ENT_QUOTES, $charset = 'UTF-8') |
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{ |
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return htmlspecialchars($string, $flags, $charset); |
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} |
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/** |
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* |
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* @param string $xpathExpression |
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* @param DOMNode $contextNode |
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* @param boolean $documentOrdered |
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* @return array |
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*/ |
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protected function runXpathQuery($xpathExpression, DOMNode $contextNode = null, $documentOrdered = true) |
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{ |
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$xp = new DOMXPath($this->document); |
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$xp->registerNamespace('k', 'lalalala'); |
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$nodeList = $xp->query($xpathExpression, $contextNode); |
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$arrayList = array(); |
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foreach ($nodeList as $node) { |
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$arrayList[] = $node; |
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} |
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/* Shall the result be ordered? |
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* |
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* As far as I can tell from web sources, a NodeList returned by |
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* DOMXPath is not necessarily in document order. So we need to sort it |
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* on our own. This code iterates depth first over the DOM tree while |
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* checking every node against the node list returned by XPath. If two |
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* nodes are equal, delete the node from the XPath result set and add it |
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* to a new (now sorted) list. |
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* |
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* Unfortunately, this is not the most efficient thing to do. |
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*/ |
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if ($documentOrdered) { |
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$newList = array(); |
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// Traverse the tree |
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$rec = function ($node) use (&$rec, &$newList, &$arrayList) { |
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/* @var $node DOMElement */ |
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foreach ($arrayList as $index => $compareNode) { |
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if ($node->isSameNode($compareNode)) { |
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$newList[] = $node; |
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unset($arrayList[$index]); |
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break; |
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} |
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} |
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if ($node->hasChildNodes()) { |
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foreach ($node->childNodes as $child) { |
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$rec($child); |
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} |
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} |
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}; |
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$rec($this->document); |
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$arrayList = $newList; |
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} |
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return $arrayList; |
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} |
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/** |
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* @see http://www.php.net/manual/en/class.domelement.php#86803 |
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* @param mixed $elem |
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*/ |
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protected function getInnerXml($elem) |
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{ |
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$innerHtml = ''; |
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foreach ($elem->childNodes as $child) { |
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$tmp_doc = new DOMDocument('1.0', 'UTF-8'); |
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$tmp_doc->appendChild($tmp_doc->importNode($child, true)); |
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$tmp = $tmp_doc->saveXML(); |
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$tmp = preg_replace('/<\?xml[^>]*>\n/', '', $tmp); |
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$tmp = rtrim($tmp, "\n"); |
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$innerHtml .= $tmp; |
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} |
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return $innerHtml; |
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} |
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} |
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mermshaus /
kaloa-renderer
