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<?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 <[email protected]> |
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* (c) Rezo Zero / Ambroise Maupate |
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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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declare(strict_types=1); |
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namespace League\CommonMark\Extension\Footnote\Parser; |
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use League\CommonMark\Extension\Footnote\Node\FootnoteRef; |
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use League\CommonMark\Inline\Parser\InlineParserInterface; |
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use League\CommonMark\InlineParserContext; |
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use League\CommonMark\Reference\Reference; |
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use League\CommonMark\Util\ConfigurationAwareInterface; |
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use League\CommonMark\Util\ConfigurationInterface; |
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final class FootnoteRefParser implements InlineParserInterface, ConfigurationAwareInterface |
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{ |
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/** @var ConfigurationInterface */ |
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private $config; |
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public function getCharacters(): array |
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{ |
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return ['[']; |
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} |
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public function parse(InlineParserContext $inlineContext): bool |
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{ |
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$container = $inlineContext->getContainer(); |
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$cursor = $inlineContext->getCursor(); |
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$nextChar = $cursor->peek(); |
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if ($nextChar !== '^') { |
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return false; |
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} |
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$state = $cursor->saveState(); |
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$m = $cursor->match('#\[\^([^\]]+)\]#'); |
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if ($m !== null) { |
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if (\preg_match('#\[\^([^\]]+)\]#', $m, $matches) > 0) { |
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$container->appendChild(new FootnoteRef($this->createReference($matches[1]))); |
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return true; |
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} |
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} |
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$cursor->restoreState($state); |
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return false; |
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} |
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private function createReference(string $label): Reference |
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{ |
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return new Reference( |
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$label, |
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'#' . $this->config->get('footnote/footnote_id_prefix', 'fn:') . $label, |
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$label |
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); |
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} |
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public function setConfiguration(ConfigurationInterface $config): void |
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{ |
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$this->config = $config; |
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} |
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} |
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thephpleague /
commonmark
