anchor.diff:  
   (def-html-tag <:li :core :event :i18n)
   
  -(def-html-tag <:link :core :event :i18n
  -              charset
  -              href
  -              hreflang
  -              media
  -              rel
  -              rev
  -              type)
  +(def-empty-html-tag <:link :core :event :i18n
  +                    charset
  +                    href
  +                    hreflang
  +                    media
  +                    rel
  +                    rev
  +                    type)
   
   (def-html-tag <:map :core :event :i18n
                 name)
   
  -(def-html-tag <:meta :i18n
  -              content
  -              http-equiv
  -              name
  -              scheme)
  +(def-empty-html-tag <:meta :i18n
  +                    content
  +                    http-equiv
  +                    name
  +                    scheme)
   
   (def-html-tag <:noframes :core :event :i18n)
   
  
positive.code:               name
                onreset
                onsubmit
  	      target)
  
  (def-html-tag <:frame :core
                frameborder
                longdesc
                marginheight
                marginwidth
                noresize
                scrolling
                src)
  
  (def-html-tag <:frameset :core
                cols
  
negative.code: 
  (def-html-tag <:p :core :event :i18n)
  
  (def-empty-html-tag <:param
                      name
                      id
                      type
                      value
                      valuetype)
  
  (def-html-tag <:pre :core :event :i18n)
  
  