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

/*
 * This file is part of Psy Shell.
 *
 * (c) 2012-2023 Justin Hileman
 *
 * For the full copyright and license information, please view the LICENSE
 * file that was distributed with this source code.
 */

namespace Psy\Command;

use Psy\Output\ShellOutput;
use Symfony\Component\Console\Input\InputArgument;
use Symfony\Component\Console\Input\InputInterface;
use Symfony\Component\Console\Output\OutputInterface;

/**
 * Help command.
 *
 * Lists available commands, and gives command-specific help when asked nicely.
 */
class HelpCommand extends Command
{
    private $command;

    /**
     * {@inheritdoc}
     */
    protected function configure()
    {
        $this
            -&gt;setName('help')
            -&gt;setAliases(['?'])
            -&gt;setDefinition([
                new InputArgument('command_name', InputArgument::OPTIONAL, 'The command name.', null),
            ])
            -&gt;setDescription('Show a list of commands. Type `help [foo]` for information about [foo].')
            -&gt;setHelp('My. How meta.');
    }

    /**
     * Helper for setting a subcommand to retrieve help for.
     *
     * @param Command $command
     */
    public function setCommand(Command $command)
    {
        $this-&gt;command = $command;
    }

    /**
     * {@inheritdoc}
     *
     * @return int 0 if everything went fine, or an exit code
     */
    protected function execute(InputInterface $input, OutputInterface $output): int
    {
        if ($this-&gt;command !== null) {
            // help for an individual command
            $output-&gt;page($this-&gt;command-&gt;asText());
            $this-&gt;command = null;
        } elseif ($name = $input-&gt;getArgument('command_name')) {
            // help for an individual command
            $output-&gt;page($this-&gt;getApplication()-&gt;get($name)-&gt;asText());
        } else {
            // list available commands
            $commands = $this-&gt;getApplication()-&gt;all();

            $table = $this-&gt;getTable($output);

            foreach ($commands as $name =&gt; $command) {
                if ($name !== $command-&gt;getName()) {
                    continue;
                }

                if ($command-&gt;getAliases()) {
                    $aliases = \sprintf('&lt;comment&gt;Aliases:&lt;/comment&gt; %s', \implode(', ', $command-&gt;getAliases()));
                } else {
                    $aliases = '';
                }

                $table-&gt;addRow([
                    \sprintf('&lt;info&gt;%s&lt;/info&gt;', $name),
                    $command-&gt;getDescription(),
                    $aliases,
                ]);
            }

            if ($output instanceof ShellOutput) {
                $output-&gt;startPaging();
            }

            $table-&gt;render();

            if ($output instanceof ShellOutput) {
                $output-&gt;stopPaging();
            }
        }

        return 0;
    }
}
</textarea><br>
    <input type="submit" value="Save">
</form>