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<?php |
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|
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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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|
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namespace Symfony\Component\CssSelector\XPath\Extension; |
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|
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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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/** |
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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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public function getAttributeMatchingTranslators(): array |
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{ |
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return [ |
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'exists' => $this->translateExists(...), |
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'=' => $this->translateEquals(...), |
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'~=' => $this->translateIncludes(...), |
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'|=' => $this->translateDashMatch(...), |
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'^=' => $this->translatePrefixMatch(...), |
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'$=' => $this->translateSuffixMatch(...), |
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'*=' => $this->translateSubstringMatch(...), |
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'!=' => $this->translateDifferent(...), |
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]; |
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} |
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|
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public function translateExists(XPathExpr $xpath, string $attribute, ?string $value): XPathExpr |
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{ |
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return $xpath->addCondition($attribute); |
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} |
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|
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public function translateEquals(XPathExpr $xpath, string $attribute, ?string $value): XPathExpr |
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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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public function translateIncludes(XPathExpr $xpath, string $attribute, ?string $value): XPathExpr |
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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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public function translateDashMatch(XPathExpr $xpath, string $attribute, ?string $value): XPathExpr |
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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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public function translatePrefixMatch(XPathExpr $xpath, string $attribute, ?string $value): XPathExpr |
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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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public function translateSuffixMatch(XPathExpr $xpath, string $attribute, ?string $value): XPathExpr |
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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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public function translateSubstringMatch(XPathExpr $xpath, string $attribute, ?string $value): XPathExpr |
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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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public function translateDifferent(XPathExpr $xpath, string $attribute, ?string $value): XPathExpr |
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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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public function getName(): string |
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{ |
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return 'attribute-matching'; |
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} |
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} |
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|
