suite of tools for interpreting HTTP Accept family for Ruby/Rack

 Rack-Accept is a suite of tools for Ruby/Rack applications
 that eases the complexity of building and interpreting
 the Accept*family of HTTP request headers. It has full support
 for the Accept, Accept-Charset, Accept-Encoding, and Accept-Language
 HTTP request headers.
 .
 It implements the Rack middleware interface and may be used with any
 Rack-based application.