class AttributeMatchingExtension in Zircon Profile 8

XPath expression translator attribute 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\AttributeMatchingExtension

See also

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

File

vendor/symfony/css-selector/XPath/Extension/AttributeMatchingExtension.php, line 25

Namespace

Symfony\Component\CssSelector\XPath\Extension

class AttributeMatchingExtension extends AbstractExtension {

  /**
   * {@inheritdoc}
   */
  public function getAttributeMatchingTranslators() {
    return array(
      'exists' => array(
        $this,
        'translateExists',
      ),
      '=' => array(
        $this,
        'translateEquals',
      ),
      '~=' => array(
        $this,
        'translateIncludes',
      ),
      '|=' => array(
        $this,
        'translateDashMatch',
      ),
      '^=' => array(
        $this,
        'translatePrefixMatch',
      ),
      '$=' => array(
        $this,
        'translateSuffixMatch',
      ),
      '*=' => array(
        $this,
        'translateSubstringMatch',
      ),
      '!=' => array(
        $this,
        'translateDifferent',
      ),
    );
  }

  /**
   * @param XPathExpr $xpath
   * @param string    $attribute
   * @param string    $value
   *
   * @return XPathExpr
   */
  public function translateExists(XPathExpr $xpath, $attribute, $value) {
    return $xpath
      ->addCondition($attribute);
  }

  /**
   * @param XPathExpr $xpath
   * @param string    $attribute
   * @param string    $value
   *
   * @return XPathExpr
   */
  public function translateEquals(XPathExpr $xpath, $attribute, $value) {
    return $xpath
      ->addCondition(sprintf('%s = %s', $attribute, Translator::getXpathLiteral($value)));
  }

  /**
   * @param XPathExpr $xpath
   * @param string    $attribute
   * @param string    $value
   *
   * @return XPathExpr
   */
  public function translateIncludes(XPathExpr $xpath, $attribute, $value) {
    return $xpath
      ->addCondition($value ? sprintf('%1$s and contains(concat(\' \', normalize-space(%1$s), \' \'), %2$s)', $attribute, Translator::getXpathLiteral(' ' . $value . ' ')) : '0');
  }

  /**
   * @param XPathExpr $xpath
   * @param string    $attribute
   * @param string    $value
   *
   * @return XPathExpr
   */
  public function translateDashMatch(XPathExpr $xpath, $attribute, $value) {
    return $xpath
      ->addCondition(sprintf('%1$s and (%1$s = %2$s or starts-with(%1$s, %3$s))', $attribute, Translator::getXpathLiteral($value), Translator::getXpathLiteral($value . '-')));
  }

  /**
   * @param XPathExpr $xpath
   * @param string    $attribute
   * @param string    $value
   *
   * @return XPathExpr
   */
  public function translatePrefixMatch(XPathExpr $xpath, $attribute, $value) {
    return $xpath
      ->addCondition($value ? sprintf('%1$s and starts-with(%1$s, %2$s)', $attribute, Translator::getXpathLiteral($value)) : '0');
  }

  /**
   * @param XPathExpr $xpath
   * @param string    $attribute
   * @param string    $value
   *
   * @return XPathExpr
   */
  public function translateSuffixMatch(XPathExpr $xpath, $attribute, $value) {
    return $xpath
      ->addCondition($value ? sprintf('%1$s and substring(%1$s, string-length(%1$s)-%2$s) = %3$s', $attribute, strlen($value) - 1, Translator::getXpathLiteral($value)) : '0');
  }

  /**
   * @param XPathExpr $xpath
   * @param string    $attribute
   * @param string    $value
   *
   * @return XPathExpr
   */
  public function translateSubstringMatch(XPathExpr $xpath, $attribute, $value) {
    return $xpath
      ->addCondition($value ? sprintf('%1$s and contains(%1$s, %2$s)', $attribute, Translator::getXpathLiteral($value)) : '0');
  }

  /**
   * @param XPathExpr $xpath
   * @param string    $attribute
   * @param string    $value
   *
   * @return XPathExpr
   */
  public function translateDifferent(XPathExpr $xpath, $attribute, $value) {
    return $xpath
      ->addCondition(sprintf($value ? 'not(%1$s) or %1$s != %2$s' : '%s != %s', $attribute, Translator::getXpathLiteral($value)));
  }

  /**
   * {@inheritdoc}
   */
  public function getName() {
    return 'attribute-matching';
  }

}

Members

Name	Modifiers	Type	Description	Overrides
AbstractExtension::getCombinationTranslators	public	function	Returns combination translators. Overrides ExtensionInterface::getCombinationTranslators	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
AttributeMatchingExtension::getAttributeMatchingTranslators	public	function	Returns attribute operation translators. Overrides AbstractExtension::getAttributeMatchingTranslators
AttributeMatchingExtension::getName	public	function	Returns extension name. Overrides ExtensionInterface::getName
AttributeMatchingExtension::translateDashMatch	public	function
AttributeMatchingExtension::translateDifferent	public	function
AttributeMatchingExtension::translateEquals	public	function
AttributeMatchingExtension::translateExists	public	function
AttributeMatchingExtension::translateIncludes	public	function
AttributeMatchingExtension::translatePrefixMatch	public	function
AttributeMatchingExtension::translateSubstringMatch	public	function
AttributeMatchingExtension::translateSuffixMatch	public	function