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vendor/symfony/css-selector/XPath/Extension/AttributeMatchingExtension.php
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175
vendor/symfony/css-selector/XPath/Extension/AttributeMatchingExtension.php
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<?php
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/*
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* This file is part of the Symfony package.
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*
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* (c) Fabien Potencier <fabien@symfony.com>
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*
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* For the full copyright and license information, please view the LICENSE
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* file that was distributed with this source code.
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*/
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namespace Symfony\Component\CssSelector\XPath\Extension;
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use Symfony\Component\CssSelector\XPath\Translator;
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use Symfony\Component\CssSelector\XPath\XPathExpr;
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/**
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* XPath expression translator attribute extension.
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*
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* This component is a port of the Python cssselect library,
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* which is copyright Ian Bicking, @see https://github.com/SimonSapin/cssselect.
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*
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* @author Jean-François Simon <jeanfrancois.simon@sensiolabs.com>
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*
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* @internal
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*/
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class AttributeMatchingExtension extends AbstractExtension
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{
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/**
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* {@inheritdoc}
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*/
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public function getAttributeMatchingTranslators()
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{
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return array(
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'exists' => array($this, 'translateExists'),
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'=' => array($this, 'translateEquals'),
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'~=' => array($this, 'translateIncludes'),
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'|=' => array($this, 'translateDashMatch'),
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'^=' => array($this, 'translatePrefixMatch'),
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'$=' => array($this, 'translateSuffixMatch'),
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'*=' => array($this, 'translateSubstringMatch'),
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'!=' => array($this, 'translateDifferent'),
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);
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}
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/**
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* @param XPathExpr $xpath
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* @param string $attribute
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* @param string $value
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*
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* @return XPathExpr
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*/
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public function translateExists(XPathExpr $xpath, $attribute, $value)
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{
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return $xpath->addCondition($attribute);
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}
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/**
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* @param XPathExpr $xpath
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* @param string $attribute
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* @param string $value
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*
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* @return XPathExpr
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*/
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public function translateEquals(XPathExpr $xpath, $attribute, $value)
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{
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return $xpath->addCondition(sprintf('%s = %s', $attribute, Translator::getXpathLiteral($value)));
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}
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/**
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* @param XPathExpr $xpath
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* @param string $attribute
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* @param string $value
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*
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* @return XPathExpr
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*/
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public function translateIncludes(XPathExpr $xpath, $attribute, $value)
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{
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return $xpath->addCondition($value ? sprintf(
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'%1$s and contains(concat(\' \', normalize-space(%1$s), \' \'), %2$s)',
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$attribute,
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Translator::getXpathLiteral(' '.$value.' ')
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) : '0');
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}
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/**
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* @param XPathExpr $xpath
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* @param string $attribute
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* @param string $value
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*
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* @return XPathExpr
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*/
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public function translateDashMatch(XPathExpr $xpath, $attribute, $value)
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{
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return $xpath->addCondition(sprintf(
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'%1$s and (%1$s = %2$s or starts-with(%1$s, %3$s))',
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$attribute,
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Translator::getXpathLiteral($value),
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Translator::getXpathLiteral($value.'-')
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));
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}
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/**
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* @param XPathExpr $xpath
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* @param string $attribute
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* @param string $value
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*
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* @return XPathExpr
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*/
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public function translatePrefixMatch(XPathExpr $xpath, $attribute, $value)
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{
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return $xpath->addCondition($value ? sprintf(
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'%1$s and starts-with(%1$s, %2$s)',
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$attribute,
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Translator::getXpathLiteral($value)
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) : '0');
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}
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/**
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* @param XPathExpr $xpath
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* @param string $attribute
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* @param string $value
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*
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* @return XPathExpr
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*/
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public function translateSuffixMatch(XPathExpr $xpath, $attribute, $value)
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{
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return $xpath->addCondition($value ? sprintf(
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'%1$s and substring(%1$s, string-length(%1$s)-%2$s) = %3$s',
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$attribute,
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strlen($value) - 1,
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Translator::getXpathLiteral($value)
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) : '0');
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}
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/**
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* @param XPathExpr $xpath
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* @param string $attribute
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* @param string $value
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*
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* @return XPathExpr
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*/
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public function translateSubstringMatch(XPathExpr $xpath, $attribute, $value)
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{
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return $xpath->addCondition($value ? sprintf(
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'%1$s and contains(%1$s, %2$s)',
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$attribute,
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Translator::getXpathLiteral($value)
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) : '0');
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}
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/**
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* @param XPathExpr $xpath
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* @param string $attribute
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* @param string $value
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*
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* @return XPathExpr
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*/
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public function translateDifferent(XPathExpr $xpath, $attribute, $value)
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{
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return $xpath->addCondition(sprintf(
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$value ? 'not(%1$s) or %1$s != %2$s' : '%s != %s',
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$attribute,
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Translator::getXpathLiteral($value)
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));
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}
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/**
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* {@inheritdoc}
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*/
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public function getName()
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{
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return 'attribute-matching';
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}
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}
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