#!/usr/bin/env ruby

def print_flag palette, num, colors
	for fg in colors
		printf "\e[48;2;%sm%s", palette[fg], ?\s * num
	end
	printf "\e[m\n"
end

names = {
	0  => "regular",
	1  => "bold",
	2  => "faint",
	3  => "italic",
	4  => "underline",
	5  => "blink",
	6  => "blink2",
	7  => "reverse",
	8  => "conceal",
	9  => "strike",
	11 => "font1",
	12 => "font2",
	13 => "font3",
	14 => "font4",
	15 => "font5",
	16 => "font6",
	17 => "font7",
	18 => "font8",
	19 => "font9",
	20 => "fraktur",
	21 => "doubleline",
	51 => "framed",
	52 => "encircled",
	53 => "overlined",
	60 => "irsline",
	61 => "idoubleline",
	62 => "ilsline",
	63 => "ioverline2",
	64 => "istress",
}

puts "Terminal modes"
for mode in Enumerator::Chain.new(0..9, 11..21, 51..53, 60..64)
	name = names[mode]
	printf "Mode %2d: ", mode
	for bg in Enumerator::Chain.new([49], 40..47)
		printf "\e[%d;%dmlorem", mode, bg
	end
	printf "\e[m (%s)\n", name
end
puts

puts "4 bit color"
for bg in Enumerator::Chain.new([49], 40..47)
	for fg in Enumerator::Chain.new([39], 30..37)
		printf "\e[%d;%dm%d %d", bg, fg, bg, fg
	end
	printf "\e[m\n"
end
puts

puts "8 bit color"
for fg in 0..15
	printf "\e[48;5;%dm%3d", fg, fg
	printf "\e[m\n" if fg % 8 == 7
end
printf "\e[m\n"

for fg in 16..255
	printf "\e[48;5;%dm%4d", fg, fg
	printf "\e[m\n" if (fg - 15) % 6 == 0
end
printf "\e[m\n"
puts

roygcbvp = %w(242;119;119 242;160;119 242;217;119 137;242;119
              119;234;242 119;123;242 180;119;242 242;119;236)
flag1 = %w(91;207;250 245;171;185 255;255;255)
flag2 = %w(255;244;44 255;255;255 157;89;210 0;0;0)

puts "24 bit color"
print_flag roygcbvp, 10, 0..7
print_flag flag1,    16, [0, 1, 2, 1, 0]
print_flag flag2,    20, 0..3
puts

puts "These colors must not be the same."
puts "If they are, your terminal is not using truecolor."
puts
puts "\e[48;5;134m  8bit\e[m"
puts "\e[48;2;157;89;210m 24bit"

## EOF