def parse(filename, content)
      Sexp.from_array(Ripper::SexpBuilder.new(content).parse)
    rescue Exception
      raise AnalyzerException.new("#{filename} looks like it's not a valid Ruby file.  Skipping...")
    end
def parse(filename, content)
      Sexp.from_array(Ripper::SexpBuilder.new(content).parse)
    rescue Exception
      raise AnalyzerException.new("#{filename} looks like it's not a valid Ruby file.  Skipping...")
    end
parse ruby code.

 @param [String] filename is the filename of ruby code.
 @param [String] content is the content of ruby file.