Provided you have selected the automatic parsing for links, typing an URL freehand works fine:
http://slashdot.org
However, when you surround it with parentheses, it doesn't work this well:
(http://slashdot.org)
As you can see from the above, the parsing of this URL has swallowed the closing parenthesis, which it should not have.
http://slashdot.org
However, when you surround it with parentheses, it doesn't work this well:
(http://slashdot.org)
As you can see from the above, the parsing of this URL has swallowed the closing parenthesis, which it should not have.