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- <?php
- /*
- * This file is part of the Symfony package.
- *
- * (c) Fabien Potencier <fabien@symfony.com>
- *
- * For the full copyright and license information, please view the LICENSE
- * file that was distributed with this source code.
- */
- namespace Symfony\Component\CssSelector\XPath\Extension;
- use Symfony\Component\CssSelector\XPath\Translator;
- use Symfony\Component\CssSelector\XPath\XPathExpr;
- /**
- * XPath expression translator attribute extension.
- *
- * This component is a port of the Python cssselect library,
- * which is copyright Ian Bicking, @see https://github.com/SimonSapin/cssselect.
- *
- * @author Jean-François Simon <jeanfrancois.simon@sensiolabs.com>
- *
- * @internal
- */
- 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';
- }
- }
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