Viewing file:  FootnoteRefParser.php (1.91 KB) -rw-r--r--
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<?php
/*
* This file is part of the league/commonmark package.
*
* (c) Colin O'Dell <colinodell@gmail.com>
* (c) Rezo Zero / Ambroise Maupate
*
* For the full copyright and license information, please view the LICENSE
* file that was distributed with this source code.
*/
declare(strict_types=1);
namespace League\CommonMark\Extension\Footnote\Parser;
use League\CommonMark\Extension\Footnote\Node\FootnoteRef;
use League\CommonMark\Inline\Parser\InlineParserInterface;
use League\CommonMark\InlineParserContext;
use League\CommonMark\Reference\Reference;
use League\CommonMark\Util\ConfigurationAwareInterface;
use League\CommonMark\Util\ConfigurationInterface;
final class FootnoteRefParser implements InlineParserInterface, ConfigurationAwareInterface
{
/** @var ConfigurationInterface */
private $config;
public function getCharacters(): array
{
return ['['];
}
public function parse(InlineParserContext $inlineContext): bool
{
$container = $inlineContext->getContainer();
$cursor = $inlineContext->getCursor();
$nextChar = $cursor->peek();
if ($nextChar !== '^') {
return false;
}
$state = $cursor->saveState();
$m = $cursor->match('#\[\^([^\]]+)\]#');
if ($m !== null) {
if (\preg_match('#\[\^([^\]]+)\]#', $m, $matches) > 0) {
$container->appendChild(new FootnoteRef($this->createReference($matches[1])));
return true;
}
}
$cursor->restoreState($state);
return false;
}
private function createReference(string $label): Reference
{
return new Reference(
$label,
'#' . $this->config->get('footnote/footnote_id_prefix', 'fn:') . $label,
$label
);
}
public function setConfiguration(ConfigurationInterface $config): void
{
$this->config = $config;
}
}
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