Error on litedown plugin dealing with tabs and empty lines

[beavis]

Hi, Im migrating a large database using this parser and found an error when dealing with some lines starting with tabs and no data (copy pasted from tables or excel I guess)

Example: (warning: some editors remove tabs when pasting, lines between numbers just have a tab)

$configurator = new s9e\TextFormatter\Configurator;
$configurator->Litedown;
extract($configurator->finalize());

$text = "3-3-3-3

2-2-2-2

1-1-1-1";

$xml  = $parser->parse($text);
$html = $renderer->render($xml);

echo $html;

outputs:

PHP Warning:  str_repeat(): Second argument has to be greater than or equal to 0 in xxx/vendor/s9e/text-formatter/src/Plugins/Litedown/Parser.php on line 675

Warning: str_repeat(): Second argument has to be greater than or equal to 0 in xxx/vendor/s9e/text-formatter/src/Plugins/Litedown/Parser.php on line 675
<p>3-3-3-3</p>

<pre><code>2-2-2-2

1-1-1-1</code></pre>

I would have tried to submit a pull request with a fix but not sure what's the correct behaviour on this case, all the markdown parsers I have tried just treat those lines as empty and don't add any code block. Thanks :)

[JoshyPHP]

Great write-up. I confirm I can reproduce the issue locally and I'm going to check it out asap.