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    <h3>Editing: FileLinkFormatter.php</h3>
    <textarea name="content" rows="20" cols="80">&lt;?php

/*
 * This file is part of the Symfony package.
 *
 * (c) Fabien Potencier &lt;fabien@symfony.com&gt;
 *
 * For the full copyright and license information, please view the LICENSE
 * file that was distributed with this source code.
 */

namespace Symfony\Component\HttpKernel\Debug;

use Symfony\Component\HttpFoundation\Request;
use Symfony\Component\HttpFoundation\RequestStack;
use Symfony\Component\Routing\Generator\UrlGeneratorInterface;

/**
 * Formats debug file links.
 *
 * @author Jérémy Romey &lt;jeremy@free-agent.fr&gt;
 *
 * @final
 */
class FileLinkFormatter
{
    private const FORMATS = [
        'textmate' =&gt; 'txmt://open?url=file://%f&amp;line=%l',
        'macvim' =&gt; 'mvim://open?url=file://%f&amp;line=%l',
        'emacs' =&gt; 'emacs://open?url=file://%f&amp;line=%l',
        'sublime' =&gt; 'subl://open?url=file://%f&amp;line=%l',
        'phpstorm' =&gt; 'phpstorm://open?file=%f&amp;line=%l',
        'atom' =&gt; 'atom://core/open/file?filename=%f&amp;line=%l',
        'vscode' =&gt; 'vscode://file/%f:%l',
    ];

    private $fileLinkFormat;
    private $requestStack;
    private $baseDir;
    private $urlFormat;

    /**
     * @param string|array|null $fileLinkFormat
     * @param string|\Closure   $urlFormat      the URL format, or a closure that returns it on-demand
     */
    public function __construct($fileLinkFormat = null, ?RequestStack $requestStack = null, ?string $baseDir = null, $urlFormat = null)
    {
        if (!\is_array($fileLinkFormat) &amp;&amp; $fileLinkFormat = (self::FORMATS[$fileLinkFormat] ?? $fileLinkFormat) ?: \ini_get('xdebug.file_link_format') ?: get_cfg_var('xdebug.file_link_format')) {
            $i = strpos($f = $fileLinkFormat, '&amp;', max(strrpos($f, '%f'), strrpos($f, '%l'))) ?: \strlen($f);
            $fileLinkFormat = [substr($f, 0, $i)] + preg_split('/&amp;([^&gt;]++)&gt;/', substr($f, $i), -1, \PREG_SPLIT_DELIM_CAPTURE);
        }

        $this-&gt;fileLinkFormat = $fileLinkFormat;
        $this-&gt;requestStack = $requestStack;
        $this-&gt;baseDir = $baseDir;
        $this-&gt;urlFormat = $urlFormat;
    }

    public function format(string $file, int $line)
    {
        if ($fmt = $this-&gt;getFileLinkFormat()) {
            for ($i = 1; isset($fmt[$i]); ++$i) {
                if (str_starts_with($file, $k = $fmt[$i++])) {
                    $file = substr_replace($file, $fmt[$i], 0, \strlen($k));
                    break;
                }
            }

            return strtr($fmt[0], ['%f' =&gt; $file, '%l' =&gt; $line]);
        }

        return false;
    }

    /**
     * @internal
     */
    public function __sleep(): array
    {
        $this-&gt;fileLinkFormat = $this-&gt;getFileLinkFormat();

        return ['fileLinkFormat'];
    }

    /**
     * @internal
     */
    public static function generateUrlFormat(UrlGeneratorInterface $router, string $routeName, string $queryString): ?string
    {
        try {
            return $router-&gt;generate($routeName).$queryString;
        } catch (\Throwable $e) {
            return null;
        }
    }

    private function getFileLinkFormat()
    {
        if ($this-&gt;fileLinkFormat) {
            return $this-&gt;fileLinkFormat;
        }

        if ($this-&gt;requestStack &amp;&amp; $this-&gt;baseDir &amp;&amp; $this-&gt;urlFormat) {
            $request = $this-&gt;requestStack-&gt;getMainRequest();

            if ($request instanceof Request &amp;&amp; (!$this-&gt;urlFormat instanceof \Closure || $this-&gt;urlFormat = ($this-&gt;urlFormat)())) {
                return [
                    $request-&gt;getSchemeAndHttpHost().$this-&gt;urlFormat,
                    $this-&gt;baseDir.\DIRECTORY_SEPARATOR, '',
                ];
            }
        }

        return null;
    }
}
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