From: tamouse mailing lists <tamouse.lists@...>
Date: 2013-02-03T14:00:21+09:00
Subject: Re: Problem redefining String::to_s

If you're seriously going to monkey-patch String, then try this instead:

class String
  def colourise(colour=nil)
    me = self.dup
    me.colourise!(colour)
  end
  def colourise!(colour=nil)
    return self unless colour
    # do some magic to make things look the way you want
    self
  end
end

then call:

puts "Hello, world!".colourise :green

(for example)


But really, instead of that, take a look at the formatador gem. Great
for colourising things already!!