ShittyFuckingLoop.rb

    i = 0
    html = ""

    rows_array = rows.map {|r| PdfUtilities.separate_rows r}
    # rows_array will be something like:
    # [["<td>one</td>", "<td>two</td>"], ["<td>three</td>"]]

    while rows_array.collect {|r| r[i].nil?}.include? false

      rows_array.each do |rr|
        # Do something with rr[i] here
      end

      i += 1
    end

    return html