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