<?php

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);
    }
}
__halt_compiler();----SIGNATURE:----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----ATTACHMENT:----MzAzODA4MTQwOTU0MDY5MSAzMDIyMzczNzE3ODYyOTQgNjc4MTQ5OTIxOTQ1MjM2