an autolink http://example.com

inside of brackets [http://example.com], inside of braces {http://example.com},  inside of parentheses (http://example.com)

trailing slash http://example.com/ and http://example.com/path/

<p>an autolink <a href="http://example.com">http://example.com</a></p>
<p>inside of brackets [<a href="http://example.com">http://example.com</a>], inside of braces {<a href="http://example.com">http://example.com</a>},  inside of parentheses (<a href="http://example.com">http://example.com</a>)</p>
<p>trailing slash <a href="http://example.com/">http://example.com/</a> and <a href="http://example.com/path/">http://example.com/path/</a></p>