How to output my ruby commandline text in different colours

Question

How can I make the puts commands I output from a commandline based ruby program colour? I would appreciated any references to how I call each different colour also.

Lets

Answer 1

I've created something like this:

begin
   require 'Win32/Console/ANSI' if PLATFORM =~ /win32/
rescue LoadError
   raise 'You must gem install win32console to use color on Windows'
end

class Colors
   COLOR1 = "\e[1;36;40m"
   COLOR2 = "\e[1;35;40m"
   NOCOLOR = "\e[0m"
   RED = "\e[1;31;40m"
   GREEN = "\e[1;32;40m"
   DARKGREEN = "\e[0;32;40m"
   YELLOW = "\e[1;33;40m"
   DARKCYAN = "\e[0;36;40m"
end

class String
   def color(color)
      return color + self + Colors::NOCOLOR
   end
end

Now you can just use another method of String:

"Hello World".color(Colors::DARKGREEN)

To know all the colors just execute this:

begin
  require 'Win32/Console/ANSI' if PLATFORM =~ /win32/
rescue LoadError
  raise 'You must gem install win32console to use color on Windows'
end

[0, 1, 4, 5, 7].each do |attr|
  puts '----------------------------------------------------------------'
  puts "ESC[#{attr};Foreground;Background"
  30.upto(37) do |fg|
    40.upto(47) do |bg|
      print "\033[#{attr};#{fg};#{bg}m #{fg};#{bg}  "
    end
  puts "\033[0m"
  end
end