Display 256 colors in Windows cmd.exe using ANSI color control sequences

256_colors.lua

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-- Display 256 colors in Windows cmd.exe using ANSI color control sequences
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-- How to run:
--   lua.exe 256_colors.lua

-- Inspired by similar program in Ruby
--    https://github.com/gawin/bash-colors-256/blob/master/colors

os.execute""
for i = 0, 255 do

   -- Print color code in a background and foregroud color
   io.write("\27[48;5;"..i.."m\27[38;5;15m"..(" %03d "):format(i))
   io.write("\27[33;5;0m\27[38;5;"..i.."m"..(" %03d "):format(i))

   local i = i + 1
   if i <= 16 and i % 8 == 0 or i > 16 and (i-16) % 6 == 0 then
      io.write("\27[0m\n")
   end
   if i <= 16 and i % 16 == 0 or i > 16 and (i-16) % 36 == 0 then
      io.write("\n")
   end
end