prosody
cd8516a77255
util/termcolours.lua

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util/termcolours.lua @ 11305:cd8516a77255

util.startup: Make installer_plugin_path relative to data directory Having it relative to current working directory is problematic since this depends on how Prosody was started and changes to the data directory during startup (but after this point).
author Kim Alvefur <zash@zash.se>
date Sun, 24 Jan 2021 16:12:53 +0100
parent 10423:317bcc4f25f5
child 12975:d10957394a3c
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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b1885732e979 GPL->MIT!
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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 -- luacheck: std none
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30
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31 local stylemap = {
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32 reset = 0; bright = 1, dim = 2, underscore = 4, blink = 5, reverse = 7, hidden = 8;
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33 black = 30; red = 31; green = 32; yellow = 33; blue = 34; magenta = 35; cyan = 36; white = 37;
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34 ["black background"] = 40; ["red background"] = 41; ["green background"] = 42; ["yellow background"] = 43;
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35 ["blue background"] = 44; ["magenta background"] = 45; ["cyan background"] = 46; ["white background"] = 47;
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36 bold = 1, dark = 2, underline = 4, underlined = 4, normal = 0;
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37 }
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38
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39 local winstylemap = {
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40 ["0"] = orig_color, -- reset
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41 ["1"] = 7+8, -- bold
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42 ["1;33"] = 2+4+8, -- bold yellow
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43 ["1;31"] = 4+8 -- bold red
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44 }
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45
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46 local cssmap = {
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47 [1] = "font-weight: bold", [2] = "opacity: 0.5", [4] = "text-decoration: underline", [8] = "visibility: hidden",
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48 [30] = "color:black", [31] = "color:red", [32]="color:green", [33]="color:#FFD700",
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49 [34] = "color:blue", [35] = "color: magenta", [36] = "color:cyan", [37] = "color: white",
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50 [40] = "background-color:black", [41] = "background-color:red", [42]="background-color:green",
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51 [43]="background-color:yellow", [44] = "background-color:blue", [45] = "background-color: magenta",
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52 [46] = "background-color:cyan", [47] = "background-color: white";
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53 };
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54
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55 local fmt_string = char(0x1B).."[%sm%s"..char(0x1B).."[0m";
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56 local function getstring(style, text)
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57 if style then
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58 return format(fmt_string, style, text);
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59 else
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60 return text;
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61 end
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62 end
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63
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64 local function gray(n)
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65 return m_floor(n*3/32)+0xe8;
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66 end
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67 local function color(r,g,b)
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68 if r == g and g == b then
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69 return gray(r);
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70 end
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71 r = m_floor(r*3/128);
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72 g = m_floor(g*3/128);
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73 b = m_floor(b*3/128);
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74 return 0x10 + ( r * 36 ) + ( g * 6 ) + ( b );
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75 end
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76 local function hex2rgb(hex)
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77 local r = tonumber(hex:sub(1,2),16);
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78 local g = tonumber(hex:sub(3,4),16);
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79 local b = tonumber(hex:sub(5,6),16);
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80 return r,g,b;
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81 end
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82
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83 setmetatable(stylemap, { __index = function(_, style)
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84 if type(style) == "string" and style:find("%x%x%x%x%x%x") == 1 then
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85 local g = style:sub(7) == " background" and "48;5;" or "38;5;";
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86 return format("%s%d", g, color(hex2rgb(style)));
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87 end
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88 end } );
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89
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90 local csscolors = {
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91 red = "ff0000"; fuchsia = "ff00ff"; green = "008000"; white = "ffffff";
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92 lime = "00ff00"; yellow = "ffff00"; purple = "800080"; blue = "0000ff";
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93 aqua = "00ffff"; olive = "808000"; black = "000000"; navy = "000080";
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94 teal = "008080"; silver = "c0c0c0"; maroon = "800000"; gray = "808080";
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95 }
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96 for colorname, rgb in pairs(csscolors) do
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97 stylemap[colorname] = stylemap[colorname] or stylemap[rgb];
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98 colorname, rgb = colorname .. " background", rgb .. " background"
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99 stylemap[colorname] = stylemap[colorname] or stylemap[rgb];
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100 end
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101
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102 local function getstyle(...)
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103 local styles, result = { ... }, {};
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104 for i, style in ipairs(styles) do
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105 style = stylemap[style];
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106 if style then
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107 t_insert(result, style);
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108 end
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109 end
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110 return t_concat(result, ";");
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111 end
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112
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113 local last = "0";
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114 local function setstyle(style)
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115 style = style or "0";
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116 if style ~= last then
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117 io_write("\27["..style.."m");
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118 last = style;
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119 end
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120 end
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121
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122 if windows then
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123 function setstyle(style)
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124 style = style or "0";
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125 if style ~= last then
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126 windows.set_consolecolor(winstylemap[style] or orig_color);
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127 last = style;
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128 end
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129 end
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130 if not orig_color then
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5846e0bca4ff util.termcolours: Remove argument from noop function [luacheck]
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131 function setstyle() end
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132 end
588c09d7903c util.termcolours: Added setstyle(str), which works on Windows too.
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parents: 2923
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133 end
588c09d7903c util.termcolours: Added setstyle(str), which works on Windows too.
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parents: 2923
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134
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739f7ae1a01e util.termcolours: tohtml() for converting output to HTML. I don't know.
Matthew Wild <mwild1@gmail.com>
parents: 3749
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135 local function ansi2css(ansi_codes)
739f7ae1a01e util.termcolours: tohtml() for converting output to HTML. I don't know.
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parents: 3749
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136 if ansi_codes == "0" then return "</span>"; 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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137 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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138 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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139 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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140 end
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parents: 3749
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141 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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142 end
739f7ae1a01e util.termcolours: tohtml() for converting output to HTML. I don't know.
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parents: 3749
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143
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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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144 local function tohtml(input)
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parents: 3749
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145 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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146 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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147
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Kim Alvefur <zash@zash.se>
parents: 5776
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148 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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149 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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150 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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151 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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152 tohtml = tohtml;
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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153 };