Word wrap in Ruby

word_wrap.rb

class WordWrap
  def initialize(text)
    @text = text
  end
  
  def wrap(col)
    result = ""
    len = 0
    @text.split(" ").each do |word|
      if (len + word.length + 1) <= col then
        result += " " + word
        len += word.length + 1
      else
        result += "\n" + word
        len = word.length + 1
      end
    end
    result
  end
end

col = 50
text = "The path of the righteous man is beset on all sides by the iniquities of the selfish and the tyranny of evil men. Blessed is he who, in the name of charity and good will, shepherds the weak through the valley of darkness, for he is truly his brother's keeper and the finder of lost children. And I will strike down upon thee with great vengeance and furious anger those who would attempt to poison and destroy My brothers. And you will know My name is the Lord when I lay My vengeance upon thee."

qualcosa = WordWrap.new(text)
wrapped = qualcosa.wrap(col)
puts wrapped
puts "-" * col