git.stricted.de - GitHub/WoltLab/WCF.git/blob

   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\XPath\Extension;
  13
  14 use Symfony\Component\CssSelector\XPath\Translator;
  15 use Symfony\Component\CssSelector\XPath\XPathExpr;
  16
  17 /**
  18  * XPath expression translator attribute extension.
  19  *
  20  * This component is a port of the Python cssselect library,
  21  * which is copyright Ian Bicking, @see https://github.com/SimonSapin/cssselect.
  22  *
  23  * @author Jean-François Simon <jeanfrancois.simon@sensiolabs.com>
  24  *
  25  * @internal
  26  */
  27 class AttributeMatchingExtension extends AbstractExtension
  28 {
  29     /**
  30      * {@inheritdoc}
  31      */
  32     public function getAttributeMatchingTranslators()
  33     {
  34         return array(
  35             'exists' => array($this, 'translateExists'),
  36             '=' => array($this, 'translateEquals'),
  37             '~=' => array($this, 'translateIncludes'),
  38             '|=' => array($this, 'translateDashMatch'),
  39             '^=' => array($this, 'translatePrefixMatch'),
  40             '$=' => array($this, 'translateSuffixMatch'),
  41             '*=' => array($this, 'translateSubstringMatch'),
  42             '!=' => array($this, 'translateDifferent'),
  43         );
  44     }
  45
  46     public function translateExists(XPathExpr $xpath, string $attribute, ?string $value): XPathExpr
  47     {
  48         return $xpath->addCondition($attribute);
  49     }
  50
  51     public function translateEquals(XPathExpr $xpath, string $attribute, ?string $value): XPathExpr
  52     {
  53         return $xpath->addCondition(sprintf('%s = %s', $attribute, Translator::getXpathLiteral($value)));
  54     }
  55
  56     public function translateIncludes(XPathExpr $xpath, string $attribute, ?string $value): XPathExpr
  57     {
  58         return $xpath->addCondition($value ? sprintf(
  59             '%1$s and contains(concat(\' \', normalize-space(%1$s), \' \'), %2$s)',
  60             $attribute,
  61             Translator::getXpathLiteral(' '.$value.' ')
  62         ) : '0');
  63     }
  64
  65     public function translateDashMatch(XPathExpr $xpath, string $attribute, ?string $value): XPathExpr
  66     {
  67         return $xpath->addCondition(sprintf(
  68             '%1$s and (%1$s = %2$s or starts-with(%1$s, %3$s))',
  69             $attribute,
  70             Translator::getXpathLiteral($value),
  71             Translator::getXpathLiteral($value.'-')
  72         ));
  73     }
  74
  75     public function translatePrefixMatch(XPathExpr $xpath, string $attribute, ?string $value): XPathExpr
  76     {
  77         return $xpath->addCondition($value ? sprintf(
  78             '%1$s and starts-with(%1$s, %2$s)',
  79             $attribute,
  80             Translator::getXpathLiteral($value)
  81         ) : '0');
  82     }
  83
  84     public function translateSuffixMatch(XPathExpr $xpath, string $attribute, ?string $value): XPathExpr
  85     {
  86         return $xpath->addCondition($value ? sprintf(
  87             '%1$s and substring(%1$s, string-length(%1$s)-%2$s) = %3$s',
  88             $attribute,
  89             \strlen($value) - 1,
  90             Translator::getXpathLiteral($value)
  91         ) : '0');
  92     }
  93
  94     public function translateSubstringMatch(XPathExpr $xpath, string $attribute, ?string $value): XPathExpr
  95     {
  96         return $xpath->addCondition($value ? sprintf(
  97             '%1$s and contains(%1$s, %2$s)',
  98             $attribute,
  99             Translator::getXpathLiteral($value)
 100         ) : '0');
 101     }
 102
 103     public function translateDifferent(XPathExpr $xpath, string $attribute, ?string $value): XPathExpr
 104     {
 105         return $xpath->addCondition(sprintf(
 106             $value ? 'not(%1$s) or %1$s != %2$s' : '%s != %s',
 107             $attribute,
 108             Translator::getXpathLiteral($value)
 109         ));
 110     }
 111
 112     /**
 113      * {@inheritdoc}
 114      */
 115     public function getName()
 116     {
 117         return 'attribute-matching';
 118     }
 119 }