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local colormt = {}
local ansicolors = {}
local rspamd_util = require "rspamd_util"
local isatty = rspamd_util.isatty()
function colormt:__tostring()
return self.value
end
function colormt:__concat(other)
return tostring(self) .. tostring(other)
end
function colormt:__call(s)
return self .. s .. ansicolors.reset
end
colormt.__metatable = {}
local function makecolor(value)
if isatty then
return setmetatable({
value = string.char(27) .. '[' .. tostring(value) .. 'm'
}, colormt)
else
return setmetatable({
value = ''
}, colormt)
end
end
local colors = {
-- attributes
reset = 0,
clear = 0,
bright = 1,
dim = 2,
underscore = 4,
blink = 5,
reverse = 7,
hidden = 8,
-- foreground
black = 30,
red = 31,
green = 32,
yellow = 33,
blue = 34,
magenta = 35,
cyan = 36,
white = 37,
-- background
onblack = 40,
onred = 41,
ongreen = 42,
onyellow = 43,
onblue = 44,
onmagenta = 45,
oncyan = 46,
onwhite = 47,
}
for c, v in pairs(colors) do
ansicolors[c] = makecolor(v)
end
return ansicolors
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