Hello, what is the best choice to compare 2 string/text in Ruby ? For example i have 2 model that each of it have a "content" column, the question is i like to compare the content of the model and display the differences in a HTML view with yellow highlighting. R there any plugin that can solve this problem ? Do I need to use Regex to solve it ? cos i''m a newbie bout regex. I found an article http://markmcb.com/2008/11/04/ruby-on-rails-diff-text-to-html-ins-and-del/ that try to solve the problem using "diff" but apparently it needs a file processing, so r there a way to do it without involving any files ? Thanx