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<?php |
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|
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declare(strict_types=1); |
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|
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namespace AcyMailing\Libraries\Sabberworm\CSS\Property; |
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|
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use AcyMailing\Libraries\Sabberworm\CSS\CSSList\CSSList; |
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use AcyMailing\Libraries\Sabberworm\CSS\OutputFormat; |
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use AcyMailing\Libraries\Sabberworm\CSS\Property\Selector\SpecificityCalculator; |
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use AcyMailing\Libraries\Sabberworm\CSS\Renderable; |
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|
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/** |
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* Class representing a single CSS selector. Selectors have to be split by the comma prior to being passed into this |
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* class. |
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*/ |
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class Selector implements Renderable |
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{ |
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/** |
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* @var non-empty-string |
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* |
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* @internal since 8.5.2 |
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*/ |
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public const SELECTOR_VALIDATION_RX = '/ |
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^( |
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(?: |
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# any sequence of valid unescaped characters, except quotes |
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[a-zA-Z0-9\\x{00A0}-\\x{FFFF}_^$|*=~\\[\\]()\\-\\s\\.:#+>,]++ |
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| |
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# one or more escaped characters |
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(?:\\\\.)++ |
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| |
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# quoted text, like in `[id="example"]` |
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(?: |
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# opening quote |
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([\'"]) |
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(?: |
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# sequence of characters except closing quote or backslash |
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(?:(?!\\g{-1}|\\\\).)++ |
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| |
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# one or more escaped characters |
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(?:\\\\.)++ |
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)*+ # zero or more times |
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# closing quote or end (unmatched quote is currently allowed) |
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(?:\\g{-1}|$) |
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) |
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)*+ # zero or more times |
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)$ |
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/ux'; |
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|
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/** |
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* @var string |
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*/ |
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private $selector; |
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|
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/** |
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* @internal since V8.8.0 |
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*/ |
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public static function isValid(string $selector): bool |
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{ |
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// Note: We need to use `static::` here as the constant is overridden in the `KeyframeSelector` class. |
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$numberOfMatches = CSSList::preg_match(static::SELECTOR_VALIDATION_RX, $selector); |
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|
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return $numberOfMatches === 1; |
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} |
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|
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public function __construct(string $selector) |
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{ |
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$this->setSelector($selector); |
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} |
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|
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public function getSelector(): string |
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{ |
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return $this->selector; |
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} |
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|
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public function setSelector(string $selector): void |
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{ |
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$this->selector = \trim($selector); |
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} |
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|
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/** |
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* @return int<0, max> |
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*/ |
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public function getSpecificity(): int |
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{ |
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return SpecificityCalculator::calculate($this->selector); |
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} |
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|
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public function render(OutputFormat $outputFormat): string |
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{ |
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return $this->getSelector(); |
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} |
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} |
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