word_truncate_helper.rb

module WordTruncateHelper
  def word_truncate(text, *args)
    options = args.extract_options!
    unless args.empty?
      options[:size]     = args[0] || 75
      options[:omission] = args[1] || "..."
    end
    options.reverse_merge!(:size => 75, :omission => "...")
    
    text.scan(/(\S+)(\s+)/)[0..options[:size]].flatten.join << options[:omission] if text
  end
end