MarkdownFormattingToHTML.php

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<?php

declare(strict_types=1);

namespace ILIAS\Refinery\String;

use ILIAS\Refinery\Transformation;

class MarkdownFormattingToHTML
{
    private \League\CommonMark\CommonMarkConverter $converter;

    public function __construct(bool $escape = true)
    {
        $config = [
            'allow_unsafe_links' => false,
            'max_nesting_level' => 42 // https://commonmark.thephpleague.com/1.5/security/#nesting-level
        ];

        if ($escape === true) {
            $config['html_input'] = 'escape';
        }

        $this->converter = new \League\CommonMark\CommonMarkConverter($config);
    }

    public function toHTML(): Transformation
    {
        return new \ILIAS\Refinery\Custom\Transformation(
            fn($value) => $this->converter->convert($value)->getContent()
        );
    }
}