prosody
1c6a07606309
util/termcolours.lua

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util/termcolours.lua @ 7969:1c6a07606309

util-src: Specify size of various tables to be allocated
author Kim Alvefur <zash@zash.se>
date Thu, 09 Mar 2017 01:20:59 +0100
parent 7206:1c005878db55
child 8368:3629639d5fa9
Ignore whitespace changes - Everywhere: Within whitespace: At end of lines:
rev   line source
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diff changeset
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 --
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5 -- This project is MIT/X11 licensed. Please see the
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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 -- luacheck: ignore 213/i
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10
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11
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12 local t_concat, t_insert = table.concat, table.insert;
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13 local char, format = string.char, string.format;
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14 local tonumber = tonumber;
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15 local ipairs = ipairs;
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16 local io_write = io.write;
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17 local m_floor = math.floor;
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18 local type = type;
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19 local setmetatable = setmetatable;
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20 local pairs = pairs;
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21
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22 local windows;
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23 if os.getenv("WINDIR") then
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24 windows = require "util.windows";
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25 end
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26 local orig_color = windows and windows.get_consolecolor and windows.get_consolecolor();
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27
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28 local _ENV = nil;
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29
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30 local stylemap = {
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31 reset = 0; bright = 1, dim = 2, underscore = 4, blink = 5, reverse = 7, hidden = 8;
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32 black = 30; red = 31; green = 32; yellow = 33; blue = 34; magenta = 35; cyan = 36; white = 37;
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33 ["black background"] = 40; ["red background"] = 41; ["green background"] = 42; ["yellow background"] = 43; ["blue background"] = 44; ["magenta background"] = 45; ["cyan background"] = 46; ["white background"] = 47;
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34 bold = 1, dark = 2, underline = 4, underlined = 4, normal = 0;
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35 }
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36
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37 local winstylemap = {
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38 ["0"] = orig_color, -- reset
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39 ["1"] = 7+8, -- bold
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40 ["1;33"] = 2+4+8, -- bold yellow
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41 ["1;31"] = 4+8 -- bold red
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42 }
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43
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44 local cssmap = {
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45 [1] = "font-weight: bold", [2] = "opacity: 0.5", [4] = "text-decoration: underline", [8] = "visibility: hidden",
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46 [30] = "color:black", [31] = "color:red", [32]="color:green", [33]="color:#FFD700",
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47 [34] = "color:blue", [35] = "color: magenta", [36] = "color:cyan", [37] = "color: white",
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48 [40] = "background-color:black", [41] = "background-color:red", [42]="background-color:green",
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49 [43]="background-color:yellow", [44] = "background-color:blue", [45] = "background-color: magenta",
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50 [46] = "background-color:cyan", [47] = "background-color: white";
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51 };
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52
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53 local fmt_string = char(0x1B).."[%sm%s"..char(0x1B).."[0m";
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54 local function getstring(style, text)
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55 if style then
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56 return format(fmt_string, style, text);
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57 else
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58 return text;
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59 end
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60 end
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61
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62 local function gray(n)
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63 return m_floor(n*3/32)+0xe8;
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64 end
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65 local function color(r,g,b)
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66 if r == g and g == b then
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67 return gray(r);
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68 end
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69 r = m_floor(r*3/128);
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70 g = m_floor(g*3/128);
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71 b = m_floor(b*3/128);
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72 return 0x10 + ( r * 36 ) + ( g * 6 ) + ( b );
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73 end
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74 local function hex2rgb(hex)
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75 local r = tonumber(hex:sub(1,2),16);
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76 local g = tonumber(hex:sub(3,4),16);
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77 local b = tonumber(hex:sub(5,6),16);
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78 return r,g,b;
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79 end
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80
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81 setmetatable(stylemap, { __index = function(_, style)
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82 if type(style) == "string" and style:find("%x%x%x%x%x%x") == 1 then
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83 local g = style:sub(7) == " background" and "48;5;" or "38;5;";
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84 return g .. color(hex2rgb(style));
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85 end
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86 end } );
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87
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88 local csscolors = {
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89 red = "ff0000"; fuchsia = "ff00ff"; green = "008000"; white = "ffffff";
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90 lime = "00ff00"; yellow = "ffff00"; purple = "800080"; blue = "0000ff";
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91 aqua = "00ffff"; olive = "808000"; black = "000000"; navy = "000080";
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92 teal = "008080"; silver = "c0c0c0"; maroon = "800000"; gray = "808080";
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93 }
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94 for colorname, rgb in pairs(csscolors) do
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95 stylemap[colorname] = stylemap[colorname] or stylemap[rgb];
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96 colorname, rgb = colorname .. " background", rgb .. " background"
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97 stylemap[colorname] = stylemap[colorname] or stylemap[rgb];
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98 end
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99
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100 local function getstyle(...)
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101 local styles, result = { ... }, {};
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102 for i, style in ipairs(styles) do
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103 style = stylemap[style];
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104 if style then
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105 t_insert(result, style);
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106 end
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107 end
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108 return t_concat(result, ";");
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109 end
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110
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111 local last = "0";
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112 local function setstyle(style)
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113 style = style or "0";
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114 if style ~= last then
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115 io_write("\27["..style.."m");
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116 last = style;
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117 end
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118 end
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119
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120 if windows then
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121 function setstyle(style)
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122 style = style or "0";
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123 if style ~= last then
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124 windows.set_consolecolor(winstylemap[style] or orig_color);
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125 last = style;
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126 end
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127 end
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128 if not orig_color then
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129 function setstyle() end
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130 end
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Waqas Hussain <waqas20@gmail.com>
parents: 2923
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131 end
588c09d7903c util.termcolours: Added setstyle(str), which works on Windows too.
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parents: 2923
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132
4698
739f7ae1a01e util.termcolours: tohtml() for converting output to HTML. I don't know.
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parents: 3749
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133 local function ansi2css(ansi_codes)
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134 if ansi_codes == "0" then return "</span>"; end
739f7ae1a01e util.termcolours: tohtml() for converting output to HTML. I don't know.
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parents: 3749
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135 local css = {};
739f7ae1a01e util.termcolours: tohtml() for converting output to HTML. I don't know.
Matthew Wild <mwild1@gmail.com>
parents: 3749
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136 for code in ansi_codes:gmatch("[^;]+") do
739f7ae1a01e util.termcolours: tohtml() for converting output to HTML. I don't know.
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parents: 3749
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137 t_insert(css, cssmap[tonumber(code)]);
739f7ae1a01e util.termcolours: tohtml() for converting output to HTML. I don't know.
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parents: 3749
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138 end
739f7ae1a01e util.termcolours: tohtml() for converting output to HTML. I don't know.
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parents: 3749
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139 return "</span><span style='"..t_concat(css, ";").."'>";
739f7ae1a01e util.termcolours: tohtml() for converting output to HTML. I don't know.
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parents: 3749
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140 end
739f7ae1a01e util.termcolours: tohtml() for converting output to HTML. I don't know.
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parents: 3749
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141
6777
5de6b93d0190 util.*: Remove use of module() function, make all module functions local and return them in a table at the end
Kim Alvefur <zash@zash.se>
parents: 5776
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142 local function tohtml(input)
4698
739f7ae1a01e util.termcolours: tohtml() for converting output to HTML. I don't know.
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parents: 3749
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143 return input:gsub("\027%[(.-)m", ansi2css);
739f7ae1a01e util.termcolours: tohtml() for converting output to HTML. I don't know.
Matthew Wild <mwild1@gmail.com>
parents: 3749
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144 end
739f7ae1a01e util.termcolours: tohtml() for converting output to HTML. I don't know.
Matthew Wild <mwild1@gmail.com>
parents: 3749
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145
6777
5de6b93d0190 util.*: Remove use of module() function, make all module functions local and return them in a table at the end
Kim Alvefur <zash@zash.se>
parents: 5776
diff changeset
146 return {
5de6b93d0190 util.*: Remove use of module() function, make all module functions local and return them in a table at the end
Kim Alvefur <zash@zash.se>
parents: 5776
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147 getstring = getstring;
5de6b93d0190 util.*: Remove use of module() function, make all module functions local and return them in a table at the end
Kim Alvefur <zash@zash.se>
parents: 5776
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148 getstyle = getstyle;
5de6b93d0190 util.*: Remove use of module() function, make all module functions local and return them in a table at the end
Kim Alvefur <zash@zash.se>
parents: 5776
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149 setstyle = setstyle;
5de6b93d0190 util.*: Remove use of module() function, make all module functions local and return them in a table at the end
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parents: 5776
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150 tohtml = tohtml;
5de6b93d0190 util.*: Remove use of module() function, make all module functions local and return them in a table at the end
Kim Alvefur <zash@zash.se>
parents: 5776
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151 };