1 <?php

     2 

     3 /*

     4  * This file is part of the Symfony package.

     5  *

     6  * (c) Fabien Potencier <fabien@symfony.com>

     7  *

     8  * For the full copyright and license information, please view the LICENSE

     9  * file that was distributed with this source code.

    10  */

    11 

    12 namespace Symfony\Component\CssSelector\Node;

    13 

    14 /**

    15  * ClassNode represents a "selector.className" node.

    16  *

    17  * This component is a port of the Python lxml library,

    18  * which is copyright Infrae and distributed under the BSD license.

    19  *

    20  * @author Fabien Potencier <fabien@symfony.com>

    21  */

    22 interface NodeInterface

    23 {

    24     /**

    25      * Returns a string representation of the object.

    26      *

    27      * @return string The string representation

    28      */

    29     function __toString();

    30 

    31     /**

    32      * @return XPathExpr The XPath expression

    33      *

    34      * @throws ParseException When unknown operator is found

    35      */

    36     function toXpath();

    37 }