with_dashes.rb

array.each_with_index do |line, index|
  if line.match(/^<s>/i)
    start = index
    splits = line.scan(/<(?:s|c)>\s*/i).map(&:size)
  end
  
  # detect a line that's all dashes and spaces
  if line.match(/^[\- ]+$/)
    start = index
    # scan for dashes followed by a space
    splits = line.scan(/\-+ /).map(&:size)
  end
  
  if line.match(/^<\/table>/i)
    stop = index
  end
end