This formatter simply writes one output file containing the whole AST, marked up in HTML.
The HTML_Simple formatter does not support any config options yet, however some command line options are still supported. Don't forget to set them using the "-Wf,-foo" syntax!
Specifies an output filename. The default is to send output to the console (stdout). You do not need to use the special syntax for this option.
Enables verbose operation.
Specifies the stylesheet to link to in the generated HTML file. If note specified, then no stylesheet is linked to.