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util/termcolours.lua @ 4574:4c24bb949e73
Backed out changeset aba47e6dff43
author | Matthew Wild <mwild1@gmail.com> |
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date | Fri, 24 Feb 2012 16:25:38 +0000 |
parent | 3749:588c09d7903c |
child | 4698:739f7ae1a01e |
rev | line source |
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1 -- Prosody IM |
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2 -- Copyright (C) 2008-2010 Matthew Wild |
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3 -- Copyright (C) 2008-2010 Waqas Hussain |
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4 -- |
758 | 5 -- This project is MIT/X11 licensed. Please see the |
6 -- COPYING file in the source package for more information. | |
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7 -- |
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8 |
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9 |
262 | 10 local t_concat, t_insert = table.concat, table.insert; |
11 local char, format = string.char, string.format; | |
12 local ipairs = ipairs; | |
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13 local io_write = io.write; |
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14 |
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15 local windows; |
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16 if os.getenv("WINDIR") then |
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17 windows = require "util.windows"; |
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18 end |
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19 local orig_color = windows and windows.get_consolecolor and windows.get_consolecolor(); |
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20 |
262 | 21 module "termcolours" |
22 | |
23 local stylemap = { | |
24 reset = 0; bright = 1, dim = 2, underscore = 4, blink = 5, reverse = 7, hidden = 8; | |
25 black = 30; red = 31; green = 32; yellow = 33; blue = 34; magenta = 35; cyan = 36; white = 37; | |
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; | |
27 bold = 1, dark = 2, underline = 4, underlined = 4, normal = 0; | |
28 } | |
29 | |
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30 local winstylemap = { |
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31 ["0"] = orig_color, -- reset |
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32 ["1"] = 7+8, -- bold |
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33 ["1;33"] = 2+4+8, -- bold yellow |
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34 ["1;31"] = 4+8 -- bold red |
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35 } |
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36 |
262 | 37 local fmt_string = char(0x1B).."[%sm%s"..char(0x1B).."[0m"; |
38 function getstring(style, text) | |
39 if style then | |
40 return format(fmt_string, style, text); | |
41 else | |
42 return text; | |
43 end | |
44 end | |
45 | |
46 function getstyle(...) | |
47 local styles, result = { ... }, {}; | |
48 for i, style in ipairs(styles) do | |
49 style = stylemap[style]; | |
50 if style then | |
51 t_insert(result, style); | |
52 end | |
53 end | |
54 return t_concat(result, ";"); | |
55 end | |
56 | |
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57 local last = "0"; |
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58 function setstyle(style) |
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59 style = style or "0"; |
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60 if style ~= last then |
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61 io_write("\27["..style.."m"); |
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62 last = style; |
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63 end |
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64 end |
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65 |
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66 if windows then |
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67 function setstyle(style) |
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68 style = style or "0"; |
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69 if style ~= last then |
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70 windows.set_consolecolor(winstylemap[style] or orig_color); |
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71 last = style; |
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72 end |
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73 end |
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74 if not orig_color then |
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75 function setstyle(style) end |
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76 end |
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77 end |
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78 |
262 | 79 return _M; |