class CombinationExtension in Zircon Profile 8

XPath expression translator combination extension.

This component is a port of the Python cssselect library, which is copyright Ian Bicking, @author Jean-François Simon <[e-mail]>

Hierarchy

• class \Symfony\Component\CssSelector\XPath\Extension\AbstractExtension implements ExtensionInterface
  • class \Symfony\Component\CssSelector\XPath\Extension\CombinationExtension

See also

https://github.com/SimonSapin/cssselect.

File

vendor/symfony/css-selector/XPath/Extension/CombinationExtension.php, line 24

Namespace

Symfony\Component\CssSelector\XPath\Extension

class CombinationExtension extends AbstractExtension {

  /**
   * {@inheritdoc}
   */
  public function getCombinationTranslators() {
    return array(
      ' ' => array(
        $this,
        'translateDescendant',
      ),
      '>' => array(
        $this,
        'translateChild',
      ),
      '+' => array(
        $this,
        'translateDirectAdjacent',
      ),
      '~' => array(
        $this,
        'translateIndirectAdjacent',
      ),
    );
  }

  /**
   * @param XPathExpr $xpath
   * @param XPathExpr $combinedXpath
   *
   * @return XPathExpr
   */
  public function translateDescendant(XPathExpr $xpath, XPathExpr $combinedXpath) {
    return $xpath
      ->join('/descendant-or-self::*/', $combinedXpath);
  }

  /**
   * @param XPathExpr $xpath
   * @param XPathExpr $combinedXpath
   *
   * @return XPathExpr
   */
  public function translateChild(XPathExpr $xpath, XPathExpr $combinedXpath) {
    return $xpath
      ->join('/', $combinedXpath);
  }

  /**
   * @param XPathExpr $xpath
   * @param XPathExpr $combinedXpath
   *
   * @return XPathExpr
   */
  public function translateDirectAdjacent(XPathExpr $xpath, XPathExpr $combinedXpath) {
    return $xpath
      ->join('/following-sibling::', $combinedXpath)
      ->addNameTest()
      ->addCondition('position() = 1');
  }

  /**
   * @param XPathExpr $xpath
   * @param XPathExpr $combinedXpath
   *
   * @return XPathExpr
   */
  public function translateIndirectAdjacent(XPathExpr $xpath, XPathExpr $combinedXpath) {
    return $xpath
      ->join('/following-sibling::', $combinedXpath);
  }

  /**
   * {@inheritdoc}
   */
  public function getName() {
    return 'combination';
  }

}

Members

Name	Modifiers	Type	Description	Overrides
AbstractExtension::getAttributeMatchingTranslators	public	function	Returns attribute operation translators. Overrides ExtensionInterface::getAttributeMatchingTranslators	1
AbstractExtension::getFunctionTranslators	public	function	Returns function translators. Overrides ExtensionInterface::getFunctionTranslators	2
AbstractExtension::getNodeTranslators	public	function	Returns node translators. Overrides ExtensionInterface::getNodeTranslators	1
AbstractExtension::getPseudoClassTranslators	public	function	Returns pseudo-class translators. Overrides ExtensionInterface::getPseudoClassTranslators	2
CombinationExtension::getCombinationTranslators	public	function	Returns combination translators. Overrides AbstractExtension::getCombinationTranslators
CombinationExtension::getName	public	function	Returns extension name. Overrides ExtensionInterface::getName
CombinationExtension::translateChild	public	function
CombinationExtension::translateDescendant	public	function
CombinationExtension::translateDirectAdjacent	public	function
CombinationExtension::translateIndirectAdjacent	public	function