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<?php |
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|
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declare (strict_types=1); |
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namespace WCPOS\Vendor\Sabberworm\CSS\Property; |
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|
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use WCPOS\Vendor\Sabberworm\CSS\Comment\Comment; |
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use WCPOS\Vendor\Sabberworm\CSS\OutputFormat; |
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use WCPOS\Vendor\Sabberworm\CSS\Parsing\ParserState; |
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use WCPOS\Vendor\Sabberworm\CSS\Parsing\UnexpectedTokenException; |
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use WCPOS\Vendor\Sabberworm\CSS\Property\Selector\Combinator; |
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use WCPOS\Vendor\Sabberworm\CSS\Property\Selector\Component; |
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use WCPOS\Vendor\Sabberworm\CSS\Property\Selector\CompoundSelector; |
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use WCPOS\Vendor\Sabberworm\CSS\Renderable; |
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use WCPOS\Vendor\Sabberworm\CSS\Settings; |
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use WCPOS\Vendor\Sabberworm\CSS\ShortClassNameProvider; |
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use function WCPOS\Vendor\Safe\preg_match; |
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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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use ShortClassNameProvider; |
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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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# not whitespace only |
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(?!\\s*+$) |
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(?: |
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# any sequence of valid unescaped characters, except quotes |
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[a-zA-Z0-9\\x{00A0}-\\x{FFFF}_^$|*=~\\[\\]()\\-\\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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* @var non-empty-list<Component> |
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*/ |
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private $components; |
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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 = preg_match(static::SELECTOR_VALIDATION_RX, $selector); |
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return $numberOfMatches === 1; |
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} |
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/** |
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* @param non-empty-string|non-empty-list<Component> $selector |
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* Providing a string is deprecated in version 9.2 and will not work from v10.0 |
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* |
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* @throws UnexpectedTokenException if the selector is not valid |
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*/ |
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public final function __construct($selector) |
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{ |
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if (\is_string($selector)) { |
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$this->setSelector($selector); |
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} else { |
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$this->setComponents($selector); |
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} |
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} |
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/** |
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* @param list<Comment> $comments |
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* |
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* @return non-empty-list<Component> |
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* |
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* @throws UnexpectedTokenException |
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*/ |
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private static function parseComponents(ParserState $parserState, array &$comments = []) : array |
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{ |
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// Whitespace is a descendent combinator, not allowed around a compound selector. |
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// (It is allowed within, e.g. as part of a string or within a function like `:not()`.) |
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// Gobble any up now to get a clean start. |
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$parserState->consumeWhiteSpace($comments); |
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$selectorParts = []; |
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while (\true) { |
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try { |
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$selectorParts[] = CompoundSelector::parse($parserState, $comments); |
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} catch (UnexpectedTokenException $e) { |
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if ($selectorParts !== [] && \end($selectorParts)->getValue() === ' ') { |
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// The whitespace was not a descendent combinator, and was, in fact, arbitrary, |
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// after the end of the selector. Discard it. |
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\array_pop($selectorParts); |
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break; |
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} else { |
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throw $e; |
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} |
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} |
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try { |
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$selectorParts[] = Combinator::parse($parserState, $comments); |
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} catch (UnexpectedTokenException $e) { |
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// End of selector has been reached. |
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break; |
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} |
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} |
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return $selectorParts; |
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} |
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/** |
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* @param list<Comment> $comments |
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* |
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* @throws UnexpectedTokenException |
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* |
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* @internal |
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*/ |
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public static function parse(ParserState $parserState, array &$comments = []) : self |
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{ |
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$selectorParts = self::parseComponents($parserState, $comments); |
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// Check that the selector has been fully parsed: |
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if (!\in_array($parserState->peek(), ['{', '}', ',', ''], \true)) { |
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throw new UnexpectedTokenException('`,`, `{`, `}` or EOF', $parserState->peek(5), 'literal', $parserState->currentLine()); |
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} |
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return new static($selectorParts); |
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} |
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/** |
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* @return non-empty-list<Component> |
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*/ |
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public function getComponents() : array |
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{ |
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return $this->components; |
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} |
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/** |
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* @param non-empty-list<Component> $components |
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* This should be an alternating sequence of `CompoundSelector` and `Combinator`, starting and ending with a |
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* `CompoundSelector`, and may be a single `CompoundSelector`. |
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*/ |
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public function setComponents(array $components) : self |
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{ |
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$this->components = $components; |
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return $this; |
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} |
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/** |
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* @return non-empty-string |
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* |
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* @deprecated in version 9.2, will be removed in v10.0. Use either `getComponents()` or `render()` instead. |
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*/ |
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public function getSelector() : string |
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{ |
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return $this->render(new OutputFormat()); |
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} |
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/** |
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* @param non-empty-string $selector |
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* |
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* @throws UnexpectedTokenException if the selector is not valid |
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* |
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* @deprecated in version 9.2, will be removed in v10.0. Use `setComponents()` instead. |
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*/ |
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public function setSelector(string $selector) : void |
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{ |
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$parserState = new ParserState($selector, Settings::create()); |
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$components = self::parseComponents($parserState); |
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// Check that the selector has been fully parsed: |
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if (!$parserState->isEnd()) { |
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throw new UnexpectedTokenException('EOF', $parserState->peek(5), 'literal'); |
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} |
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$this->components = $components; |
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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 \array_sum(\array_map(static function (Component $component) : int { |
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return $component->getSpecificity(); |
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}, $this->components)); |
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} |
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public function render(OutputFormat $outputFormat) : string |
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{ |
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return \implode('', \array_map(static function (Component $component) use($outputFormat) : string { |
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return $component->render($outputFormat); |
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}, $this->components)); |
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} |
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/** |
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* @return array<string, bool|int|float|string|array<mixed>|null> |
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* |
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* @internal |
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*/ |
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public function getArrayRepresentation() : array |
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{ |
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return ['class' => $this->getShortClassName(), 'components' => \array_map(static function (Component $component) : array { |
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return $component->getArrayRepresentation(); |
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}, $this->components)]; |
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} |
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} |
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|
