I once wrote a piece of software for my own use that used Markdown, and I wrote a thin preparsing layer that would allow it to do the right thing regardless of

I once wrote a piece of software for my own use that used Markdown, and I wrote a thin preparsing layer that would allow it to do the right thing regardless of which of these I typed: [http://foo.com][text] [http://foo.com](text) (http://foo.com)[text] (http://foo.com)(text) [text][http://foo.com] (text)[http://foo.com] [text](http://foo.com) (text)(http://foo.com) I think it might even have accepted {}'s.