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<?php |
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/** |
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* @package s9e\TextFormatter |
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* @copyright Copyright (c) 2010-2018 The s9e Authors |
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* @license http://www.opensource.org/licenses/mit-license.php The MIT License |
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*/ |
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namespace s9e\TextFormatter\Configurator\Helpers\TemplateParser; |
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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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abstract class IRProcessor |
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{ |
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/** |
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* XSL namespace |
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*/ |
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const XMLNS_XSL = 'http://www.w3.org/1999/XSL/Transform'; |
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/** |
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* @var DOMXPath |
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*/ |
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protected $xpath; |
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/** |
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* Create and append an element to given node in the IR |
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* |
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* @param DOMElement $parentNode Parent node of the element |
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* @param string $name Tag name of the element |
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* @param string $value Value of the element |
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* @return DOMElement The created element |
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*/ |
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protected function appendElement(DOMElement $parentNode, $name, $value = '') |
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{ |
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return $parentNode->appendChild($parentNode->ownerDocument->createElement($name, $value)); |
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} |
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/** |
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* Create and store an instance of DOMXPath for given document |
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* |
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* @param DOMDocument $dom |
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* @return void |
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*/ |
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protected function createXPath(DOMDocument $dom) |
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{ |
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$this->xpath = new DOMXPath($dom); |
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} |
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/** |
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* Evaluate an XPath expression and return its result |
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* |
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* @param string $expr XPath expression |
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* @param DOMNode $node Context node |
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* @return mixed |
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*/ |
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protected function evaluate($expr, DOMNode $node = null) |
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{ |
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return (isset($node)) ? $this->xpath->evaluate($expr, $node) : $this->xpath->evaluate($expr); |
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} |
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/** |
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* Run an XPath query and return its result |
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* |
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* @param string $query XPath query |
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* @param DOMNode $node Context node |
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* @return \DOMNodeList |
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*/ |
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protected function query($query, DOMNode $node = null) |
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{ |
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return (isset($node)) ? $this->xpath->query($query, $node) : $this->xpath->query($query); |
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} |
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} |
s9e /
TextFormatter
