67 lines
1.5 KiB
PHP
67 lines
1.5 KiB
PHP
<?php
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/*
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* This file is part of the league/commonmark package.
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*
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* (c) Colin O'Dell <colinodell@gmail.com>
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*
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* Original code based on the CommonMark JS reference parser (https://bitly.com/commonmark-js)
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* - (c) John MacFarlane
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*
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* For the full copyright and license information, please view the LICENSE
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* file that was distributed with this source code.
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*/
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namespace League\CommonMark\Reference;
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use League\CommonMark\Normalizer\TextNormalizer;
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/**
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* A collection of references, indexed by label
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*/
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final class ReferenceMap implements ReferenceMapInterface
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{
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/** @var TextNormalizer */
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private $normalizer;
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/**
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* @var ReferenceInterface[]
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*/
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private $references = [];
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public function __construct()
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{
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$this->normalizer = new TextNormalizer();
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}
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public function addReference(ReferenceInterface $reference): void
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{
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$key = $this->normalizer->normalize($reference->getLabel());
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$this->references[$key] = $reference;
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}
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public function contains(string $label): bool
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{
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$label = $this->normalizer->normalize($label);
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return isset($this->references[$label]);
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}
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public function getReference(string $label): ?ReferenceInterface
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{
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$label = $this->normalizer->normalize($label);
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if (!isset($this->references[$label])) {
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return null;
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}
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return $this->references[$label];
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}
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public function listReferences(): iterable
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{
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return \array_values($this->references);
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}
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}
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