Internal
[Test Comments]
[Alias to Comments Page|Test Comments]
External
[http://abc.com]
[Alias to external link|http://abc.com]
underscores:
[Test Z_underscores |Test Z_underscores]
links to a "bad char" page
[Test XYZ; Bad Chars|Test XYZ. Bad Chars]
inline images from another page:
!Test Attachments^cow.jpg!
attachment links from another page:
[Test Attachments^cow.jpg]