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<?php
/*
* This file is part of the league/commonmark package.
*
* (c) Colin O'Dell <[email protected]>
* Original code based on the CommonMark JS reference parser (https://bitly.com/commonmark-js)
* - (c) John MacFarlane
* For the full copyright and license information, please view the LICENSE
* file that was distributed with this source code.
*/
namespace League\CommonMark\Reference;
/**
* A collection of references, indexed by label
class ReferenceMap
{
* @var Reference[]
protected $references = [];
* @param Reference $reference
* @return $this
public function addReference(Reference $reference)
$key = Reference::normalizeReference($reference->getLabel());
$this->references[$key] = $reference;
return $this;
}
* @param string $label
* @return bool
public function contains(string $label): bool
$label = Reference::normalizeReference($label);
return isset($this->references[$label]);
* @return Reference|null
public function getReference(string $label): ?Reference
if (!isset($this->references[$label])) {
return null;
return $this->references[$label];
* Lists all registered references.
* @return Reference[]
public function listReferences(): iterable
return \array_values($this->references);