class CssSelector in Zircon Profile 8

CssSelector is the main entry point of the component and can convert CSS selectors to XPath expressions.

$xpath = CssSelector::toXpath('h1.foo');

This component is a port of the Python cssselect library, which is copyright Ian Bicking, Copyright (c) 2007-2012 Ian Bicking and contributors. See AUTHORS for more details.

All rights reserved.

Redistribution and use in source and binary forms, with or without modification, are permitted provided that the following conditions are met:

1. Redistributions of source code must retain the above copyright notice, this list of conditions and the following disclaimer.

2. Redistributions in binary form must reproduce the above copyright notice, this list of conditions and the following disclaimer in the documentation and/or other materials provided with the distribution.

3. Neither the name of Ian Bicking nor the names of its contributors may be used to endorse or promote products derived from this software without specific prior written permission.

THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL IAN BICKING OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.

@author Fabien Potencier <[e-mail]>

Hierarchy

• class \Symfony\Component\CssSelector\CssSelector

See also

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

6 files declare their use of CssSelector

AssertContentTrait.php in core/modules/simpletest/src/AssertContentTrait.php

Contains \Drupal\simpletest\AssertContentTrait.

Crawler.php in vendor/symfony/dom-crawler/Crawler.php

CrawlerTest.php in vendor/symfony/dom-crawler/Tests/CrawlerTest.php

CssSelector.php in vendor/behat/mink/src/Selector/CssSelector.php

CssSelectorTest.php in vendor/symfony/css-selector/Tests/CssSelectorTest.php

... See full list

File

vendor/symfony/css-selector/CssSelector.php, line 65

Namespace

Symfony\Component\CssSelector

class CssSelector {
  private static $html = true;

  /**
   * Translates a CSS expression to its XPath equivalent.
   * Optionally, a prefix can be added to the resulting XPath
   * expression with the $prefix parameter.
   *
   * @param mixed  $cssExpr The CSS expression.
   * @param string $prefix  An optional prefix for the XPath expression.
   *
   * @return string
   */
  public static function toXPath($cssExpr, $prefix = 'descendant-or-self::') {
    $translator = new Translator();
    if (self::$html) {
      $translator
        ->registerExtension(new HtmlExtension($translator));
    }
    $translator
      ->registerParserShortcut(new EmptyStringParser())
      ->registerParserShortcut(new ElementParser())
      ->registerParserShortcut(new ClassParser())
      ->registerParserShortcut(new HashParser());
    return $translator
      ->cssToXPath($cssExpr, $prefix);
  }

  /**
   * Enables the HTML extension.
   */
  public static function enableHtmlExtension() {
    self::$html = true;
  }

  /**
   * Disables the HTML extension.
   */
  public static function disableHtmlExtension() {
    self::$html = false;
  }

}

Members

Name	Modifiers	Type	Description	Overrides
CssSelector::$html	private static	property
CssSelector::disableHtmlExtension	public static	function	Disables the HTML extension.
CssSelector::enableHtmlExtension	public static	function	Enables the HTML extension.
CssSelector::toXPath	public static	function	Translates a CSS expression to its XPath equivalent. Optionally, a prefix can be added to the resulting XPath expression with the $prefix parameter.