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<?php |
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namespace Sulao\HtmlQuery; |
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use Closure; |
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use DOMDocument, DOMNode, DOMNodeList; |
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/** |
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* Trait Selector |
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* |
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* @package Sulao\HtmlQuery |
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*/ |
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trait Selector |
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{ |
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use Resolver; |
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/** |
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* @var DOMDocument |
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*/ |
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protected $doc; |
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/** |
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* @var DOMNode[] |
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*/ |
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protected $nodes; |
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abstract protected function getClosureClass(Closure $function, int $index); |
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abstract protected function closureResolve(string $class, DOMNode $node); |
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/** |
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* Make the static object can be called as a function. |
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* |
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* @param string|DOMNode|DOMNode[]|DOMNodeList|static $selector |
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* |
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* @return static|null |
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*/ |
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public function __invoke($selector) |
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{ |
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if (is_string($selector)) { |
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return $this->query($selector); |
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} |
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return $this->resolve($selector); |
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} |
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/** |
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* If the parameter is raw html, then create document fragment for it, |
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* If the parameter is a css selector, get the descendants |
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* of each current node, filtered by a css selector. |
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* If the parameter is selection, resolve that selection |
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* |
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* @param string $selector css selector or raw html |
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* |
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* @return static |
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*/ |
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public function query(string $selector) |
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{ |
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if (Helper::isRawHtml($selector)) { |
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return $this->htmlResolve($selector); |
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} |
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return $this->targetResolve($selector); |
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} |
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/** |
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* Get the descendants of each matched node, filtered by a selector. |
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* |
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* @param string|DOMNode|DOMNode[]|DOMNodeList|static $selector |
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* |
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* @return static |
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*/ |
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public function find($selector) |
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{ |
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if (is_string($selector)) { |
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$selection = $this->xpathResolve(Helper::toXpath($selector)); |
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return Helper::isIdSelector($selector) |
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? $this->resolve($selection->nodes[0] ?? []) |
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: $selection; |
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} |
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$descendants = $this->xpathResolve('descendant::*'); |
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return $descendants->intersect($selector); |
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} |
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/** |
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* Get the nodes in the current nodes filtered by a selector. |
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* |
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* @param string|Closure|DOMNode|DOMNode[]|DOMNodeList|static $selector |
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* |
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* @return static |
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*/ |
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public function filter($selector) |
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{ |
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if (is_string($selector)) { |
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$xpath = Helper::toXpath($selector, 'self::'); |
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return $this->xpathResolve($xpath); |
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} elseif ($selector instanceof Closure) { |
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$class = $this->getClosureClass($selector, 1); |
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$nodes = []; |
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foreach ($this->nodes as $key => $node) { |
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$resolve = $this->closureResolve($class, $node); |
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if (!empty($resolve) && $selector($key, $resolve)) { |
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$nodes[] = $node; |
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} |
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} |
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return $this->resolve($nodes); |
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} |
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return $this->intersect($selector); |
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} |
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/** |
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* Get the parent of each node in the current nodes, |
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* optionally filtered by a css selector. |
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* |
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* @param string|null $selector |
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* |
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* @return static |
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*/ |
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public function parent(?string $selector = null) |
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{ |
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$selector = is_null($selector) ? '*' : $selector; |
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$xpath = Helper::toXpath($selector, 'parent::'); |
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return $this->xpathResolve($xpath); |
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} |
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/** |
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* Get the ancestors of each node in the current nodes, |
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* optionally filtered by a css selector. |
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* |
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* @param string|null $selector |
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* |
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* @return static |
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*/ |
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public function parents(?string $selector = null) |
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{ |
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$selector = is_null($selector) ? '*' : $selector; |
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$xpath = Helper::toXpath($selector, 'ancestor::'); |
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return $this->xpathResolve($xpath); |
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} |
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/** |
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* Get the ancestors of each node in the current nodes, |
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* up to but not including the node matched by the selector. |
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* |
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* @param string|DOMNode|DOMNode[]|DOMNodeList|static $selector |
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* |
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* @return static |
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*/ |
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public function parentsUntil($selector) |
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{ |
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return $this->relationResolve('parentNode', $selector); |
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} |
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/** |
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* Get the children of each node in the current nodes, |
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* optionally filtered by a css selector. |
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* |
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* @param string|null $selector |
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* |
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* @return static |
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*/ |
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public function children(?string $selector = null) |
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{ |
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$selector = is_null($selector) ? '*' : $selector; |
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$xpath = Helper::toXpath($selector, 'child::'); |
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return $this->xpathResolve($xpath); |
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} |
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/** |
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* Get the siblings of each node in the current nodes, |
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* optionally filtered by a css selector. |
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* |
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* @param string|null $selector |
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* |
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* @return static |
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*/ |
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public function siblings(?string $selector = null) |
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{ |
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$xpath = is_null($selector) ? '*' : Helper::toXpath($selector, ''); |
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$xpath = "preceding-sibling::{$xpath}|following-sibling::{$xpath}"; |
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return $this->xpathResolve($xpath); |
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} |
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/** |
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* Get the immediately preceding sibling of each node in the current nodes, |
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* optionally filtered by a css selector. |
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* |
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* @param string|null $selector |
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* |
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* @return static |
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*/ |
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public function prev(?string $selector = null) |
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{ |
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$xpath = is_null($selector) ? '*' : Helper::toXpath($selector, ''); |
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$xpath = "preceding-sibling::{$xpath}[1]"; |
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return $this->xpathResolve($xpath); |
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} |
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/** |
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* Get all preceding siblings of each node in the current nodes, |
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* optionally filtered by a css selector |
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* |
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* @param string|null $selector |
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* |
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* @return static |
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*/ |
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public function prevAll(?string $selector = null) |
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{ |
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$xpath = is_null($selector) ? '*' : Helper::toXpath($selector, ''); |
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$xpath = "preceding-sibling::{$xpath}"; |
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return $this->xpathResolve($xpath); |
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} |
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/** |
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* Get all preceding siblings of each node |
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* up to but not including the node matched by the selector. |
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* |
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* @param string|DOMNode|DOMNode[]|DOMNodeList|static $selector |
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* |
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* @return static |
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*/ |
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public function prevUntil($selector) |
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{ |
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return $this->relationResolve('previousSibling', $selector); |
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} |
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/** |
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* Get the immediately following sibling of each node in the current nodes, |
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* optionally filtered by a css selector. |
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* |
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* @param string|null $selector |
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* |
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* @return static |
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*/ |
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public function next(?string $selector = null) |
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{ |
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$xpath = is_null($selector) ? '*' : Helper::toXpath($selector, ''); |
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$xpath = "following-sibling::{$xpath}[1]"; |
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return $this->xpathResolve($xpath); |
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} |
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/** |
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* Get all following siblings of each node in the current nodes, |
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* optionally filtered by a selector. |
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* |
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* @param string|null $selector |
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* |
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* @return static |
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*/ |
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public function nextAll(?string $selector = null) |
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{ |
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$xpath = is_null($selector) ? '*' : Helper::toXpath($selector, ''); |
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$xpath = "following-sibling::{$xpath}"; |
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return $this->xpathResolve($xpath); |
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} |
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/** |
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* Get all following siblings of each node |
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* up to but not including the node matched by the selector. |
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* |
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* @param string|DOMNode|DOMNode[]|DOMNodeList|static $selector |
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* |
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* @return static |
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*/ |
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public function nextUntil($selector) |
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{ |
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return $this->relationResolve('nextSibling', $selector); |
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} |
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/** |
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* Create a new static object with nodes added to the current nodes. |
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* |
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* @param string|DOMNode|DOMNode[]|DOMNodeList|static $selector |
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* |
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* @return static |
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*/ |
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public function add($selector) |
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{ |
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$nodes = $this->targetResolve($selector)->nodes; |
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$nodes = array_merge($this->nodes, $nodes); |
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$nodes = Helper::strictArrayUnique($nodes); |
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return $this->resolve($nodes); |
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} |
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/** |
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* Create a new static object with the intersected nodes |
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* between current nodes and nodes of the selection. |
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* |
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* @param string|DOMNode|DOMNode[]|DOMNodeList|static $selector |
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* |
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* @return static |
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*/ |
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public function intersect($selector) |
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{ |
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$selection = $this->targetResolve($selector); |
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return $this->resolve( |
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Helper::strictArrayIntersect($this->nodes, $selection->nodes) |
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); |
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} |
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/** |
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* Remove nodes from the current nodes. |
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* |
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* @param string|DOMNode|DOMNode[]|DOMNodeList|static $selector |
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* |
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* @return static |
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*/ |
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public function not($selector) |
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{ |
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$nodes = $this->targetResolve($selector)->nodes; |
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$nodes = Helper::strictArrayDiff($this->nodes, $nodes); |
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return $this->resolve($nodes); |
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} |
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/** |
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* Check the current matched nodes against a selector, node(s), or static |
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* object and return true if at least one of nodes matches. |
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* |
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* @param string|DOMNode|DOMNode[]|DOMNodeList|static $selector |
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* |
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* @return bool |
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*/ |
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public function is($selector): bool |
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{ |
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if (count($this->nodes)) { |
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return (bool) count($this->intersect($selector)->nodes); |
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} |
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return false; |
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} |
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} |
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