Create C++ extension ruby gem with SWIG

The objective of this project is to make S R I L M functionality available in Ruby 1.9+, Ubuntu 14.04+ environment as a gem. S R I L M is a C++ class libraries implementing language models, supporting data structures and miscellaneous utility functions. It has 50 C++ classes and 14 main executable tools such as ngram-count and ngram. To make it easy, only two executables, ngram-count and ngram needs to be converted into Ruby. So I should have two Ruby classes namely, NgramCount Ngram and have the same data structures and functionality as in C++ program. Basically, ngram and ngram-count programs should run from Ruby command line environment by passing same parameters options as in C++ program and produce the same output. Please see details in the attached file.