Chris@0: Chris@0: * Chris@0: * For the full copyright and license information, please view the LICENSE Chris@0: * file that was distributed with this source code. Chris@0: */ Chris@0: Chris@0: namespace Symfony\Component\CssSelector\XPath\Extension; Chris@0: Chris@0: use Symfony\Component\CssSelector\XPath\Translator; Chris@0: use Symfony\Component\CssSelector\XPath\XPathExpr; Chris@0: Chris@0: /** Chris@0: * XPath expression translator attribute extension. Chris@0: * Chris@0: * This component is a port of the Python cssselect library, Chris@0: * which is copyright Ian Bicking, @see https://github.com/SimonSapin/cssselect. Chris@0: * Chris@0: * @author Jean-François Simon Chris@0: * Chris@0: * @internal Chris@0: */ Chris@0: class AttributeMatchingExtension extends AbstractExtension Chris@0: { Chris@0: /** Chris@0: * {@inheritdoc} Chris@0: */ Chris@0: public function getAttributeMatchingTranslators() Chris@0: { Chris@17: return [ Chris@17: 'exists' => [$this, 'translateExists'], Chris@17: '=' => [$this, 'translateEquals'], Chris@17: '~=' => [$this, 'translateIncludes'], Chris@17: '|=' => [$this, 'translateDashMatch'], Chris@17: '^=' => [$this, 'translatePrefixMatch'], Chris@17: '$=' => [$this, 'translateSuffixMatch'], Chris@17: '*=' => [$this, 'translateSubstringMatch'], Chris@17: '!=' => [$this, 'translateDifferent'], Chris@17: ]; Chris@0: } Chris@0: Chris@0: /** Chris@0: * @param XPathExpr $xpath Chris@0: * @param string $attribute Chris@0: * @param string $value Chris@0: * Chris@0: * @return XPathExpr Chris@0: */ Chris@0: public function translateExists(XPathExpr $xpath, $attribute, $value) Chris@0: { Chris@0: return $xpath->addCondition($attribute); Chris@0: } Chris@0: Chris@0: /** Chris@0: * @param XPathExpr $xpath Chris@0: * @param string $attribute Chris@0: * @param string $value Chris@0: * Chris@0: * @return XPathExpr Chris@0: */ Chris@0: public function translateEquals(XPathExpr $xpath, $attribute, $value) Chris@0: { Chris@0: return $xpath->addCondition(sprintf('%s = %s', $attribute, Translator::getXpathLiteral($value))); Chris@0: } Chris@0: Chris@0: /** Chris@0: * @param XPathExpr $xpath Chris@0: * @param string $attribute Chris@0: * @param string $value Chris@0: * Chris@0: * @return XPathExpr Chris@0: */ Chris@0: public function translateIncludes(XPathExpr $xpath, $attribute, $value) Chris@0: { Chris@0: return $xpath->addCondition($value ? sprintf( Chris@0: '%1$s and contains(concat(\' \', normalize-space(%1$s), \' \'), %2$s)', Chris@0: $attribute, Chris@0: Translator::getXpathLiteral(' '.$value.' ') Chris@0: ) : '0'); Chris@0: } Chris@0: Chris@0: /** Chris@0: * @param XPathExpr $xpath Chris@0: * @param string $attribute Chris@0: * @param string $value Chris@0: * Chris@0: * @return XPathExpr Chris@0: */ Chris@0: public function translateDashMatch(XPathExpr $xpath, $attribute, $value) Chris@0: { Chris@0: return $xpath->addCondition(sprintf( Chris@0: '%1$s and (%1$s = %2$s or starts-with(%1$s, %3$s))', Chris@0: $attribute, Chris@0: Translator::getXpathLiteral($value), Chris@0: Translator::getXpathLiteral($value.'-') Chris@0: )); Chris@0: } Chris@0: Chris@0: /** Chris@0: * @param XPathExpr $xpath Chris@0: * @param string $attribute Chris@0: * @param string $value Chris@0: * Chris@0: * @return XPathExpr Chris@0: */ Chris@0: public function translatePrefixMatch(XPathExpr $xpath, $attribute, $value) Chris@0: { Chris@0: return $xpath->addCondition($value ? sprintf( Chris@0: '%1$s and starts-with(%1$s, %2$s)', Chris@0: $attribute, Chris@0: Translator::getXpathLiteral($value) Chris@0: ) : '0'); Chris@0: } Chris@0: Chris@0: /** Chris@0: * @param XPathExpr $xpath Chris@0: * @param string $attribute Chris@0: * @param string $value Chris@0: * Chris@0: * @return XPathExpr Chris@0: */ Chris@0: public function translateSuffixMatch(XPathExpr $xpath, $attribute, $value) Chris@0: { Chris@0: return $xpath->addCondition($value ? sprintf( Chris@0: '%1$s and substring(%1$s, string-length(%1$s)-%2$s) = %3$s', Chris@0: $attribute, Chris@17: \strlen($value) - 1, Chris@0: Translator::getXpathLiteral($value) Chris@0: ) : '0'); Chris@0: } Chris@0: Chris@0: /** Chris@0: * @param XPathExpr $xpath Chris@0: * @param string $attribute Chris@0: * @param string $value Chris@0: * Chris@0: * @return XPathExpr Chris@0: */ Chris@0: public function translateSubstringMatch(XPathExpr $xpath, $attribute, $value) Chris@0: { Chris@0: return $xpath->addCondition($value ? sprintf( Chris@0: '%1$s and contains(%1$s, %2$s)', Chris@0: $attribute, Chris@0: Translator::getXpathLiteral($value) Chris@0: ) : '0'); Chris@0: } Chris@0: Chris@0: /** Chris@0: * @param XPathExpr $xpath Chris@0: * @param string $attribute Chris@0: * @param string $value Chris@0: * Chris@0: * @return XPathExpr Chris@0: */ Chris@0: public function translateDifferent(XPathExpr $xpath, $attribute, $value) Chris@0: { Chris@0: return $xpath->addCondition(sprintf( Chris@0: $value ? 'not(%1$s) or %1$s != %2$s' : '%s != %s', Chris@0: $attribute, Chris@0: Translator::getXpathLiteral($value) Chris@0: )); Chris@0: } Chris@0: Chris@0: /** Chris@0: * {@inheritdoc} Chris@0: */ Chris@0: public function getName() Chris@0: { Chris@0: return 'attribute-matching'; Chris@0: } Chris@0: }