/usr/lib/prosody/util/termcolours.lua is in prosody 0.9.1-1.
This file is owned by root:root, with mode 0o644.
The actual contents of the file can be viewed below.
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-- Copyright (C) 2008-2010 Matthew Wild
-- Copyright (C) 2008-2010 Waqas Hussain
--
-- This project is MIT/X11 licensed. Please see the
-- COPYING file in the source package for more information.
--
local t_concat, t_insert = table.concat, table.insert;
local char, format = string.char, string.format;
local tonumber = tonumber;
local ipairs = ipairs;
local io_write = io.write;
local windows;
if os.getenv("WINDIR") then
windows = require "util.windows";
end
local orig_color = windows and windows.get_consolecolor and windows.get_consolecolor();
module "termcolours"
local stylemap = {
reset = 0; bright = 1, dim = 2, underscore = 4, blink = 5, reverse = 7, hidden = 8;
black = 30; red = 31; green = 32; yellow = 33; blue = 34; magenta = 35; cyan = 36; white = 37;
["black background"] = 40; ["red background"] = 41; ["green background"] = 42; ["yellow background"] = 43; ["blue background"] = 44; ["magenta background"] = 45; ["cyan background"] = 46; ["white background"] = 47;
bold = 1, dark = 2, underline = 4, underlined = 4, normal = 0;
}
local winstylemap = {
["0"] = orig_color, -- reset
["1"] = 7+8, -- bold
["1;33"] = 2+4+8, -- bold yellow
["1;31"] = 4+8 -- bold red
}
local cssmap = {
[1] = "font-weight: bold", [2] = "opacity: 0.5", [4] = "text-decoration: underline", [8] = "visibility: hidden",
[30] = "color:black", [31] = "color:red", [32]="color:green", [33]="color:#FFD700",
[34] = "color:blue", [35] = "color: magenta", [36] = "color:cyan", [37] = "color: white",
[40] = "background-color:black", [41] = "background-color:red", [42]="background-color:green",
[43]="background-color:yellow", [44] = "background-color:blue", [45] = "background-color: magenta",
[46] = "background-color:cyan", [47] = "background-color: white";
};
local fmt_string = char(0x1B).."[%sm%s"..char(0x1B).."[0m";
function getstring(style, text)
if style then
return format(fmt_string, style, text);
else
return text;
end
end
function getstyle(...)
local styles, result = { ... }, {};
for i, style in ipairs(styles) do
style = stylemap[style];
if style then
t_insert(result, style);
end
end
return t_concat(result, ";");
end
local last = "0";
function setstyle(style)
style = style or "0";
if style ~= last then
io_write("\27["..style.."m");
last = style;
end
end
if windows then
function setstyle(style)
style = style or "0";
if style ~= last then
windows.set_consolecolor(winstylemap[style] or orig_color);
last = style;
end
end
if not orig_color then
function setstyle(style) end
end
end
local function ansi2css(ansi_codes)
if ansi_codes == "0" then return "</span>"; end
local css = {};
for code in ansi_codes:gmatch("[^;]+") do
t_insert(css, cssmap[tonumber(code)]);
end
return "</span><span style='"..t_concat(css, ";").."'>";
end
function tohtml(input)
return input:gsub("\027%[(.-)m", ansi2css);
end
return _M;
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