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CSSNamespace.php	1.47 KB	-rwxrwxrwx
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Code Editor : Selector.php

<?php

namespace Sabberworm\CSS\Property;

/**
 * Class representing a single CSS selector. Selectors have to be split by the comma prior to being passed into this class.
 */
class Selector {

const ELEMENTS_AND_PSEUDO_ELEMENTS_RX = '/
	((^|[\s\+\>\~]+)[\w]+   # elements
	|
	\:{1,2}(                # pseudo-elements
		after|before|first-letter|first-line|selection
	))
	/ix';

private $sSelector;
	private $iSpecificity;

public function __construct($sSelector, $bCalculateSpecificity = false) {
		$this->setSelector($sSelector);
		if ($bCalculateSpecificity) {
			$this->getSpecificity();
		}
	}

public function getSelector() {
		return $this->sSelector;
	}

public function setSelector($sSelector) {
		$this->sSelector = trim($sSelector);
		$this->iSpecificity = null;
	}

public function __toString() {
		return $this->getSelector();
	}

public function getSpecificity() {
		if ($this->iSpecificity === null) {
			$a = 0;
			/// @todo should exclude \# as well as "#"
			$aMatches = null;
			$b = substr_count($this->sSelector, '#');
			$c = preg_match_all(self::NON_ID_ATTRIBUTES_AND_PSEUDO_CLASSES_RX, $this->sSelector, $aMatches);
			$d = preg_match_all(self::ELEMENTS_AND_PSEUDO_ELEMENTS_RX, $this->sSelector, $aMatches);
			$this->iSpecificity = ($a * 1000) + ($b * 100) + ($c * 10) + $d;
		}
		return $this->iSpecificity;
	}

}

${this.title}

Code Editor : Selector.php