language Angle 1 Tag
  cons category Tag Tags
  cons reader tag
    seq
      cons literal "<"
      cons commit
        seq
          cons some scalar asciiLetter
          cons many
            choice
              cons discard seq
                cons literal "\""
                cons many scalar except "\""
                cons literal "\""
                nil
              cons discard seq
                cons literal "'"
                cons many scalar except "'"
                cons literal "'"
                nil
              cons discard scalar except "\"'><"
              nil
          cons literal ">"
          nil
      nil
  cons mode Tags cons take AngleTag tag nil
  cons leaf AngleTag Tag AngleTag none cons style self "content" nil
  nil