if RUBY_PLATFORM =~/(win|w)32$/
begin
require 'Win32API'
rescue LoadError
puts "ERROR! \"Win32API\" library not found"
puts "\"Win32API\" is required for colour on a windows machine"
puts " try => \"gem install Win32API\" on the command line"
puts
end
end
class ColourCommandLine
def initialize
if RUBY_PLATFORM =~/(win|w)32$/
get_std_handle = Win32API.new("kernel32", "GetStdHandle", ['L'], 'L')
@set_console_txt_attrb =
Win32API.new("kernel32","SetConsoleTextAttribute",['L','N'], 'I')
@hout = get_std_handle.call(-11)
end
end
def change_to(new_colour)
if RUBY_PLATFORM =~/(win|w)32$/
@set_console_txt_attrb.call(@hout,self.win32_colour(new_colour))
else
"\033[30;#{posix_colour(new_colour)};22m"
end
end
def win32_colour(colour)
case colour
when :black then 0
when :dark_blue then 1
when :dark_green then 2
when :dark_cyan then 3
when :dark_red then 4
when :dark_purple then 5
when :dark_yellow, :narrative then 6
when :default_white, :default, :dark_white then 7
when :silver then 8
when :blue then 9
when :green, :success then 10
when :cyan, :output then 11
when :red, :failure then 12
when :purple then 13
when :yellow then 14
when :white then 15
else
0
end
end
def posix_colour(colour)
case colour
when :black then 30
when :red, :failure then 31
when :green, :success then 32
when :yellow then 33
when :blue, :narrative then 34
when :purple, :magenta then 35
when :cyan, :output then 36
when :white, :default_white, :default then 37
else
30
end
end
def out_c(mode, colour, str)
case RUBY_PLATFORM
when /(win|w)32$/
change_to(colour)
$stdout.puts str if mode == :puts
$stdout.print str if mode == :print
change_to(:default_white)
else
$stdout.puts("#{change_to(colour)}#{str}\033[0m") if mode == :puts
$stdout.print("#{change_to(colour)}#{str}\033[0m") if mode == :print
end
end
end
def colour_puts(role,str) ColourCommandLine.new.out_c(:puts, role, str) end
def colour_print(role,str) ColourCommandLine.new.out_c(:print, role, str) end