ansi256

require 'ansi256'

# Foreground color
puts "Colorize me".fg(111)

# With background color
puts "Colorize me".fg(111).bg(226)

# Also with underline
puts "Colorize me".fg(111).bg(226).underline

# Underline styles (single, double, curly, dotted, dashed)
puts "Colorize me".underline(:curly)

# Underline with color (256-color index or hex RGB)
puts "Colorize me".underline(:curly, 'ff9900')
puts "Colorize me".underline(214)

# Strip ANSI codes
puts "Colorize me".fg(111).bg(226).underline.plain

s = "Colorize me"
puts [ s.black,   s.black.bold,   s.white.bold.on_black   ].join ' '
puts [ s.red,     s.red.bold,     s.white.bold.on_red     ].join ' '
puts [ s.green,   s.green.bold,   s.white.bold.on_green   ].join ' '
puts [ s.yellow,  s.yellow.bold,  s.white.bold.on_yellow  ].join ' '
puts [ s.blue,    s.blue.bold,    s.white.bold.on_blue    ].join ' '
puts [ s.magenta, s.magenta.bold, s.white.bold.on_magenta ].join ' '
puts [ s.cyan,    s.cyan.bold,    s.white.bold.on_cyan    ].join ' '
puts [ s.white,   s.white.bold,   s.white.bold.on_white   ].join ' '

puts "RGB Color (RRGGBB)".fg('ff9930').bg('203366')

puts "RGB Color (R-G-B-)".fg('f90').bg('036')

puts "RGB Color (Monochrome)".fg('ef').bg('3f')

Ansi256.truecolor = false

require 'ansi256'

puts           world = "World".bg(226).fg(232).underline
puts     hello_world = "Hello #{world} !".fg(230).bg(75)
puts say_hello_world = "Say '#{hello_world}'".fg(30)
puts say_hello_world.plain.fg(27)

Ansi256.fg(232)
Ansi256.bg(226)
Ansi256.green
Ansi256.on_green
Ansi256.bold
Ansi256.dim
Ansi256.italic
Ansi256.underline
Ansi256.reset

Ansi256.fg(232, 'Hello')
Ansi256.bg(226, 'World')
Ansi256.green('Hello World')

Ansi256.enabled?
  # true

# Print colored output only when STDOUT is tty
Ansi256.enabled = $stdout.tty?

"Hello".fg(232)
  # Hello

require 'ansi256'

def cfmt col
  col.to_s.rjust(5).fg(232).bg(col)
end

puts (0..7).map  { |col| cfmt col }.join
puts (8..15).map { |col| cfmt col }.join
(16..255).each_slice(6) do |slice|
  puts slice.map { |col| cfmt col }.join
end