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-- Copyright (c) 2009 Rob Hoelz <rob@hoelzro.net>
--
-- Permission is hereby granted, free of charge, to any person obtaining a copy
-- of this software and associated documentation files (the "Software"), to deal
-- in the Software without restriction, including without limitation the rights
-- to use, copy, modify, merge, publish, distribute, sublicense, and/or sell
-- copies of the Software, and to permit persons to whom the Software is
-- furnished to do so, subject to the following conditions:
--
-- The above copyright notice and this permission notice shall be included in
-- all copies or substantial portions of the Software.
--
-- THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
-- IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
-- FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE
-- AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
-- LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,
-- OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN
-- THE SOFTWARE.
local pairs = pairs
local tostring = tostring
local setmetatable = setmetatable
local schar = string.char
local colors = {}
local colormt = {}
function colormt:__tostring()
return self.value
end
function colormt:__concat(other)
return tostring(self) .. tostring(other)
end
function colormt:__call(s)
return self .. s .. colors.reset
end
local function makecolor(value)
return setmetatable({ value = schar(27) .. '[' .. tostring(value) .. 'm' }, colormt)
end
local colorvalues = {
-- attributes
reset = 0,
clear = 0,
default = 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(colorvalues) do
colors[c] = makecolor(v)
end
return colors
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