pokemon-showdown-client/lib/css-sanitizer/Wikimedia/CSS/Grammar/NonEmpty.php
2023-06-16 11:33:53 -07:00

35 lines
857 B
PHP

<?php
/**
* @file
* @license https://opensource.org/licenses/Apache-2.0 Apache-2.0
*/
namespace Wikimedia\CSS\Grammar;
use Wikimedia\CSS\Objects\ComponentValueList;
/**
* Matcher that requires its sub-Matcher has only non-empty matches ("!" multiplier)
* @see https://www.w3.org/TR/2019/CR-css-values-3-20190606/#mult-req
*/
class NonEmpty extends Matcher {
/** @var Matcher */
protected $matcher;
/**
* @param Matcher $matcher
*/
public function __construct( Matcher $matcher ) {
$this->matcher = $matcher;
}
/** @inheritDoc */
protected function generateMatches( ComponentValueList $values, $start, array $options ) {
foreach ( $this->matcher->generateMatches( $values, $start, $options ) as $match ) {
if ( $match->getLength() !== 0 ) {
yield $this->makeMatch( $values, $start, $match->getNext(), $match );
}
}
}
}