Admincontent shortcode

AdminContentShortcode.php

<?php

namespace Grav\Plugin\Shortcodes;

use Thunder\Shortcode\Shortcode\ShortcodeInterface;
use Parsedown;

class AdminContentShortcode extends \Grav\Plugin\Shortcodes\Shortcode
{
    public function init()
    {
        $this->shortcode->getHandlers()->add('admincontent', function (ShortcodeInterface $sc) {
            $user = $this->grav['user'];

            $adminContent = $sc->getParameter('admin');
            $defaultContent = $sc->getParameter('default');

            if ($user->authorize('admin.login') || $user->authorize('admin.super')) {
                return $this->processHtml($adminContent);
            }

            return $this->processHtml($defaultContent);
        });
    }

    private function processHtml($text)
    {        
        $parsedown = new Parsedown();
        
        $html = $parsedown->text($text);
        $html = preg_replace('/<p>(.*?)<\/p>/', '$1', $html);
        
        return $html;
    }
}

example.md

[admincontent admin='John Doe' default='John Doe']