part_of_rakefile.rb

# ayucat 2009-07-16
# add to rakefile.rb as follows:
      # RSTRING/RARRAY for Ruby 1.9.x
      edit_file "xxx.c_or_h" do |line|
        case line
        when /RSTRING\(([^\)]+)\)->(ptr|len)/
          line.sub(/RSTRING\(([^\)]+)\)->ptr/, 'RSTRING_PTR(\1)').sub(/RSTRING\(([^\)]+)\)->len/, 'RSTRING_LEN(\1)')
        when /RARRAY\(([^\)]+)\)->ptr/
          line.sub(/RARRAY\(([^\)]+)\)->ptr/, 'RARRAY_PTR(\1)')
        else
          nil
        end
      end