"string".style

colors.rb

class String
  # extend String with Style!
  STYLE = {'none' => 0, 
           'bold' => 1, 
           'underline' => 4,
           'blink' => 5,         # does not work if blinking text has been disabled 
           'hide' => 8, 
           'black' => 30, 
           'red' => 31,
           'green' => 32, 
           'yellow' => 33, 
           'blue' => 34, 
           'magenta' => 35, 
           'cyan' => 36, 
           'white' => 37, 
           'bgred' => 41,
           'bggreen' => 42, 
           'bgyellow' => 43, 
           'bgblue' => 44, 
           'bgmagenta' => 45, 
           'bgcyan' => 46, 
           'bgwhite' => 47}
    
    def method_missing(name, *args, &block)
      if STYLE.keys.include? "#{name}" 
          "\033[#{STYLE["#{name}"]}m#{self}\033[0m"
          else
            # someone called a method that has
            # nothing to do with colors and doesn't exist
            # call original method_missing 
            super
        end
    end
end

usage:

puts "Like a Boss".magenta

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