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Zest.php
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Zest.php
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<?php
namespace Wikimedia\Zest;
use DOMDocument;
use DOMDocumentFragment;
use DOMElement;
use DOMNode;
/**
* Zest.php (https://github.com/wikimedia/zest.php)
* Copyright (c) 2019, C. Scott Ananian. (MIT licensed)
* PHP port based on:
*
* Zest (https://github.com/chjj/zest)
* A css selector engine.
* Copyright (c) 2011-2012, Christopher Jeffrey. (MIT Licensed)
* Domino version based on Zest v0.1.3 with bugfixes applied.
*/
class Zest {
/** @var ZestInst */
private static $singleton = null;
private static function singleton() {
if ( !self::$singleton ) {
self::$singleton = new ZestInst();
}
return self::$singleton;
}
/**
* Find elements matching a CSS selector underneath $context.
* @param string $sel The CSS selector string
* @param DOMDocument|DOMDocumentFragment|DOMElement $context
* The scoping root for the search
* @param array $opts Additional match-context options (optional)
* @return array Elements matching the CSS selector
*/
public static function find( string $sel, $context, array $opts = [] ): array {
return self::singleton()->find( $sel, $context, $opts );
}
/**
* Determine whether an element matches the given selector.
* @param DOMNode $el The element to be tested
* @param string $sel The CSS selector string
* @param array $opts Additional match-context options (optional)
* @return bool True iff the element matches the selector
*/
public static function matches( $el, string $sel, array $opts = [] ): bool {
return self::singleton()->matches( $el, $sel, $opts );
}
/**
* Get descendants by ID.
* The PHP DOM doesn't provide this method for DOMElement, and the
* implementation in DOMDocument is broken.
*
* @param DOMDocument|DOMDocumentFragment|DOMElement $context
* The scoping root for the search
* @param string $id
* @param array $opts Additional match-context options (optional)
* @return array<DOMElement> A list of the elements with the given ID. When there are more
* than one, this method might return all of them or only the first one.
*/
public static function getElementsById( $context, string $id, array $opts = [] ): array {
return self::singleton()->getElementsById( $context, $id, $opts );
}
/**
* Get descendants by tag name.
* The PHP DOM doesn't provide this method for DOMElement, and the
* implementation in DOMDocument has performance issues.
*
* @param DOMDocument|DOMDocumentFragment|DOMElement $context
* @param string $tagName
* @param array $opts Additional match-context options (optional)
* @return array<DOMElement>
*/
public static function getElementsByTagName( $context, string $tagName, array $opts = [] ) {
return self::singleton()->getElementsByTagName( $context, $tagName, $opts );
}
}

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Wed, Aug 19, 14:13 (3 w, 4 d ago)
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Zest.php (2 KB)

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