Subversion-Projekte lars-tiefland.laravel_shop

<?php

declare(strict_types=1);

/*

 * This file is part of the league/commonmark package.

 *

 * (c) Colin O'Dell <colinodell@gmail.com>

 *

 * For the full copyright and license information, please view the LICENSE

 * file that was distributed with this source code.

 */

namespace League\CommonMark\Extension\CommonMark\Parser\Block;

use League\CommonMark\Parser\Block\BlockStart;

use League\CommonMark\Parser\Block\BlockStartParserInterface;

use League\CommonMark\Parser\Cursor;

use League\CommonMark\Parser\MarkdownParserStateInterface;

final class FencedCodeStartParser implements BlockStartParserInterface

{

    public function tryStart(Cursor $cursor, MarkdownParserStateInterface $parserState): ?BlockStart

    {

        if ($cursor->isIndented() || ! \in_array($cursor->getNextNonSpaceCharacter(), ['`', '~'], true)) {

            return BlockStart::none();

        }

        $indent = $cursor->getIndent();

        $fence  = $cursor->match('/^[ \t]*(?:`{3,}(?!.*`)|~{3,})/');

        if ($fence === null) {

            return BlockStart::none();

        }

        // fenced code block

        $fence = \ltrim($fence, " \t");

        return BlockStart::of(new FencedCodeParser(\strlen($fence), $fence[0], $indent))->at($cursor);

    }

}