# File lib/mime/types.rb, line 91
 91:     def Type.simplified(content_type)
 92:       md = CONTENT_TYPE_RE.match(content_type)
 93:       if not md.nil?
 94:         mt = md[1]
 95:         st = md[2]
 96:         s = ""
 97:         s << mt.downcase.gsub(%{^x-}, '') << '/' << st.downcase.gsub(%{^x-}, '')
 98:       else
 99:         nil
100:       end
101:     end