1<?php 2 3/* 4 * This file is part of the league/commonmark package. 5 * 6 * (c) Colin O'Dell <colinodell@gmail.com> 7 * (c) Rezo Zero / Ambroise Maupate 8 * 9 * For the full copyright and license information, please view the LICENSE 10 * file that was distributed with this source code. 11 */ 12 13declare(strict_types=1); 14 15namespace League\CommonMark\Extension\Footnote\Parser; 16 17use League\CommonMark\Environment\EnvironmentAwareInterface; 18use League\CommonMark\Environment\EnvironmentInterface; 19use League\CommonMark\Extension\Footnote\Node\FootnoteRef; 20use League\CommonMark\Normalizer\TextNormalizerInterface; 21use League\CommonMark\Parser\Inline\InlineParserInterface; 22use League\CommonMark\Parser\Inline\InlineParserMatch; 23use League\CommonMark\Parser\InlineParserContext; 24use League\CommonMark\Reference\Reference; 25use League\Config\ConfigurationInterface; 26 27final class AnonymousFootnoteRefParser implements InlineParserInterface, EnvironmentAwareInterface 28{ 29 private ConfigurationInterface $config; 30 31 /** @psalm-readonly-allow-private-mutation */ 32 private TextNormalizerInterface $slugNormalizer; 33 34 public function getMatchDefinition(): InlineParserMatch 35 { 36 return InlineParserMatch::regex('\^\[([^\]]+)\]'); 37 } 38 39 public function parse(InlineParserContext $inlineContext): bool 40 { 41 $inlineContext->getCursor()->advanceBy($inlineContext->getFullMatchLength()); 42 43 [$label] = $inlineContext->getSubMatches(); 44 $reference = $this->createReference($label); 45 $inlineContext->getContainer()->appendChild(new FootnoteRef($reference, $label)); 46 47 return true; 48 } 49 50 private function createReference(string $label): Reference 51 { 52 $refLabel = $this->slugNormalizer->normalize($label, ['length' => 20]); 53 54 return new Reference( 55 $refLabel, 56 '#' . $this->config->get('footnote/footnote_id_prefix') . $refLabel, 57 $label 58 ); 59 } 60 61 public function setEnvironment(EnvironmentInterface $environment): void 62 { 63 $this->config = $environment->getConfiguration(); 64 $this->slugNormalizer = $environment->getSlugNormalizer(); 65 } 66} 67