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 use Symfony\Component\CssSelector\XPathExpr;

    15 

    16 /**

    17  * ElementNode represents a "namespace|element" node.

    18  *

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

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

    21  *

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

    23  */

    24 class ElementNode implements NodeInterface

    25 {

    26     protected $namespace;

    27     protected $element;

    28 

    29     /**

    30      * Constructor.

    31      *

    32      * @param string $namespace Namespace

    33      * @param string $element Element

    34      */

    35     public function __construct($namespace, $element)

    36     {

    37         $this->namespace = $namespace;

    38         $this->element = $element;

    39     }

    40 

    41     /**

    42      * {@inheritDoc}

    43      */

    44     public function __toString()

    45     {

    46         return sprintf('%s[%s]', __CLASS__, $this->formatElement());

    47     }

    48 

    49     /**

    50      * Formats the element into a string.

    51      *

    52      * @return string Element as an XPath string

    53      */

    54     public function formatElement()

    55     {

    56         if ($this->namespace == '*') {

    57             return $this->element;

    58         }

    59 

    60         return sprintf('%s|%s', $this->namespace, $this->element);

    61     }

    62 

    63     /**

    64      * {@inheritDoc}

    65      */

    66     public function toXpath()

    67     {

    68         if ($this->namespace == '*') {

    69             $el = strtolower($this->element);

    70         } else {

    71             // FIXME: Should we lowercase here?

    72             $el = sprintf('%s:%s', $this->namespace, $this->element);

    73         }

    74 

    75         return new XPathExpr(null, null, $el);

    76     }

    77 }