ffi-swig-generator is a ruby-ffi wrapper code generator that produces ruby-ffi glue code parsing C header files through SWIG. ffi-swig-generator is able to traverse an XML parse tree generated by the +swig+ command and to produce a ruby-ffi code from it. ffi-swig-generator is shipped with a command line tool and a rake task that automates the code generation process. ffi-swig-generator XML capabilities are provided by nokogiri.