AutolinkExtension incorrectly identifies a link if the text contains www.

[Serpanok]

Version(s) affected

2.7.1

Description

If the text contains www. and then a link, it is incorrectly replaced by deleting www. and the part of the text after it. Also, part of the text is cut out and not the entire link is determined.

How to reproduce

Example:

$text = 'test text www. test https://commonmark.thephpleague.com/2.7/extensions/autolinks/ more text';

$Environment = new Environment();
$Environment->addExtension(new CommonMarkCoreExtension());
$Environment->addExtension(new AutolinkExtension());
$MarkdownConverter = new MarkdownConverter($Environment);
echo $MarkdownConverter->convert($text);

Output:
<p>test text <a href="https://commonmark.thephpleague.com/2.7/extensions/autolinks/">https://commonmark.thephpleague.com/2.7/extensions/autolinks/</a>autolinks/ more text</p>