module Term::ANSIColor

def self.coloring=(val)

Term::ANSIColor::coloring = STDOUT.isatty
this for example:
Turns the coloring on or off globally, so you can easily do 
def self.coloring=(val)
  @coloring = val
end

def self.coloring?

is switched on, false otherwise.
Returns true, if the coloring function of this module 
def self.coloring?
  @coloring
end

def self.create_color_method(color_name, color_value) 

def self.create_color_method(color_name, color_value)
  module_eval <<-EOT
    def #{color_name}(string = nil, &block)
      color(:#{color_name}, string, &block)
    end
  EOT
  self
end

def color(name, string = nil, &block)

on the color +name+ is returned.
color +name+. If string isn't a string only the escape sequence to switch
Return +string+ or the result string of the given +block+ colored with 
def color(name, string = nil, &block)
  attribute = Attribute[name] or raise ArgumentError, "unknown attribute #{name.inspect}"
  result = ''
  result << "\e[#{attribute.code}m" if Term::ANSIColor.coloring?
  if block_given?
    result << yield
  elsif string.respond_to?(:to_str)
    result << string.to_str
  elsif respond_to?(:to_str)
    result << to_str
  else
    return result #only switch on
  end
  result << "\e[0m" if Term::ANSIColor.coloring?
  result
end

def on_color(name, string = nil, &block) 

def on_color(name, string = nil, &block)
  attribute = Attribute[name] or raise ArgumentError, "unknown attribute #{name.inspect}"
  color("on_#{attribute.name}", string, &block)
end

def support?(feature)

attribute instead.
implement the String#clear method. It's better to use the reset color
is only supported on ruby implementations, that do *not* already
The feature :clear, that is mixing the clear color attribute into String,

Returns true if Term::ANSIColor supports the +feature+. 
def support?(feature)
  case feature
  when :clear
    !String.instance_methods(false).map(&:to_sym).include?(:clear)
  end
end

def term_ansicolor_attributes

Returns an array of all Term::ANSIColor attributes as symbols. 
def term_ansicolor_attributes
  ::Term::ANSIColor::ATTRIBUTE_NAMES
end

def term_ansicolor_attributes

Returns an array of all Term::ANSIColor attributes as symbols. 
def  term_ansicolor_attributes
  ::Term::ANSIColor.term_ansicolor_attributes
end

def uncolor(string = nil) # :yields:

:yields:
ANSI-Attributes are stripped from the string.
Returns an uncolored version of the string, that is all 
def uncolor(string = nil) # :yields:
  if block_given?
    yield.to_str.gsub(COLORED_REGEXP, '')
  elsif string.respond_to?(:to_str)
    string.to_str.gsub(COLORED_REGEXP, '')
  elsif respond_to?(:to_str)
    to_str.gsub(COLORED_REGEXP, '')
  else
    ''
  end
end