<?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:----NDIyNjgzNDQwNTAwMzg4NiA2ODkxMTE5MjcxOTQ4Mzg1IDQ2NTI4NjE1NzQwMTUzMzM=