prosody
588c09d7903c
util/termcolours.lua

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util/termcolours.lua @ 3749:588c09d7903c

util.termcolours: Added setstyle(str), which works on Windows too.
author Waqas Hussain <waqas20@gmail.com>
date Wed, 15 Dec 2010 01:55:13 +0500
parent 2923:b7049746bd29
child 4698:739f7ae1a01e
comparison
equal deleted inserted replaced
3748:2237796ba228 3749:588c09d7903c
8 8
9 9
10 local t_concat, t_insert = table.concat, table.insert; 10 local t_concat, t_insert = table.concat, table.insert;
11 local char, format = string.char, string.format; 11 local char, format = string.char, string.format;
12 local ipairs = ipairs; 12 local ipairs = ipairs;
13 local io_write = io.write;
14
15 local windows;
16 if os.getenv("WINDIR") then
17 windows = require "util.windows";
18 end
19 local orig_color = windows and windows.get_consolecolor and windows.get_consolecolor();
20
13 module "termcolours" 21 module "termcolours"
14 22
15 local stylemap = { 23 local stylemap = {
16 reset = 0; bright = 1, dim = 2, underscore = 4, blink = 5, reverse = 7, hidden = 8; 24 reset = 0; bright = 1, dim = 2, underscore = 4, blink = 5, reverse = 7, hidden = 8;
17 black = 30; red = 31; green = 32; yellow = 33; blue = 34; magenta = 35; cyan = 36; white = 37; 25 black = 30; red = 31; green = 32; yellow = 33; blue = 34; magenta = 35; cyan = 36; white = 37;
18 ["black background"] = 40; ["red background"] = 41; ["green background"] = 42; ["yellow background"] = 43; ["blue background"] = 44; ["magenta background"] = 45; ["cyan background"] = 46; ["white background"] = 47; 26 ["black background"] = 40; ["red background"] = 41; ["green background"] = 42; ["yellow background"] = 43; ["blue background"] = 44; ["magenta background"] = 45; ["cyan background"] = 46; ["white background"] = 47;
19 bold = 1, dark = 2, underline = 4, underlined = 4, normal = 0; 27 bold = 1, dark = 2, underline = 4, underlined = 4, normal = 0;
20 } 28 }
29
30 local winstylemap = {
31 ["0"] = orig_color, -- reset
32 ["1"] = 7+8, -- bold
33 ["1;33"] = 2+4+8, -- bold yellow
34 ["1;31"] = 4+8 -- bold red
35 }
21 36
22 local fmt_string = char(0x1B).."[%sm%s"..char(0x1B).."[0m"; 37 local fmt_string = char(0x1B).."[%sm%s"..char(0x1B).."[0m";
23 function getstring(style, text) 38 function getstring(style, text)
24 if style then 39 if style then
25 return format(fmt_string, style, text); 40 return format(fmt_string, style, text);
37 end 52 end
38 end 53 end
39 return t_concat(result, ";"); 54 return t_concat(result, ";");
40 end 55 end
41 56
57 local last = "0";
58 function setstyle(style)
59 style = style or "0";
60 if style ~= last then
61 io_write("\27["..style.."m");
62 last = style;
63 end
64 end
65
66 if windows then
67 function setstyle(style)
68 style = style or "0";
69 if style ~= last then
70 windows.set_consolecolor(winstylemap[style] or orig_color);
71 last = style;
72 end
73 end
74 if not orig_color then
75 function setstyle(style) end
76 end
77 end
78
42 return _M; 79 return _M;