Software /
code /
prosody
File
util/termcolours.lua @ 11962:9a70a543c727
util.async: Add next-tick configuration
Running woken runners in the next iteration of the event loop prevents
unexpected recursion, unexpected tracebacks, and is generally more
predictable.
The pattern is borrowed from util.promise, where we're now doing the same.
author | Matthew Wild <mwild1@gmail.com> |
---|---|
date | Mon, 29 Nov 2021 14:14:30 +0000 |
parent | 10423:317bcc4f25f5 |
child | 12975:d10957394a3c |
line wrap: on
line source
-- Prosody IM -- Copyright (C) 2008-2010 Matthew Wild -- Copyright (C) 2008-2010 Waqas Hussain -- -- This project is MIT/X11 licensed. Please see the -- COPYING file in the source package for more information. -- -- -- luacheck: ignore 213/i local t_concat, t_insert = table.concat, table.insert; local char, format = string.char, string.format; local tonumber = tonumber; local ipairs = ipairs; local io_write = io.write; local m_floor = math.floor; local type = type; local setmetatable = setmetatable; local pairs = pairs; local windows; if os.getenv("WINDIR") then windows = require "util.windows"; end local orig_color = windows and windows.get_consolecolor and windows.get_consolecolor(); local _ENV = nil; -- luacheck: std none local stylemap = { reset = 0; bright = 1, dim = 2, underscore = 4, blink = 5, reverse = 7, hidden = 8; black = 30; red = 31; green = 32; yellow = 33; blue = 34; magenta = 35; cyan = 36; white = 37; ["black background"] = 40; ["red background"] = 41; ["green background"] = 42; ["yellow background"] = 43; ["blue background"] = 44; ["magenta background"] = 45; ["cyan background"] = 46; ["white background"] = 47; bold = 1, dark = 2, underline = 4, underlined = 4, normal = 0; } local winstylemap = { ["0"] = orig_color, -- reset ["1"] = 7+8, -- bold ["1;33"] = 2+4+8, -- bold yellow ["1;31"] = 4+8 -- bold red } local cssmap = { [1] = "font-weight: bold", [2] = "opacity: 0.5", [4] = "text-decoration: underline", [8] = "visibility: hidden", [30] = "color:black", [31] = "color:red", [32]="color:green", [33]="color:#FFD700", [34] = "color:blue", [35] = "color: magenta", [36] = "color:cyan", [37] = "color: white", [40] = "background-color:black", [41] = "background-color:red", [42]="background-color:green", [43]="background-color:yellow", [44] = "background-color:blue", [45] = "background-color: magenta", [46] = "background-color:cyan", [47] = "background-color: white"; }; local fmt_string = char(0x1B).."[%sm%s"..char(0x1B).."[0m"; local function getstring(style, text) if style then return format(fmt_string, style, text); else return text; end end local function gray(n) return m_floor(n*3/32)+0xe8; end local function color(r,g,b) if r == g and g == b then return gray(r); end r = m_floor(r*3/128); g = m_floor(g*3/128); b = m_floor(b*3/128); return 0x10 + ( r * 36 ) + ( g * 6 ) + ( b ); end local function hex2rgb(hex) local r = tonumber(hex:sub(1,2),16); local g = tonumber(hex:sub(3,4),16); local b = tonumber(hex:sub(5,6),16); return r,g,b; end setmetatable(stylemap, { __index = function(_, style) if type(style) == "string" and style:find("%x%x%x%x%x%x") == 1 then local g = style:sub(7) == " background" and "48;5;" or "38;5;"; return format("%s%d", g, color(hex2rgb(style))); end end } ); local csscolors = { red = "ff0000"; fuchsia = "ff00ff"; green = "008000"; white = "ffffff"; lime = "00ff00"; yellow = "ffff00"; purple = "800080"; blue = "0000ff"; aqua = "00ffff"; olive = "808000"; black = "000000"; navy = "000080"; teal = "008080"; silver = "c0c0c0"; maroon = "800000"; gray = "808080"; } for colorname, rgb in pairs(csscolors) do stylemap[colorname] = stylemap[colorname] or stylemap[rgb]; colorname, rgb = colorname .. " background", rgb .. " background" stylemap[colorname] = stylemap[colorname] or stylemap[rgb]; end local function getstyle(...) local styles, result = { ... }, {}; for i, style in ipairs(styles) do style = stylemap[style]; if style then t_insert(result, style); end end return t_concat(result, ";"); end local last = "0"; local function setstyle(style) style = style or "0"; if style ~= last then io_write("\27["..style.."m"); last = style; end end if windows then function setstyle(style) style = style or "0"; if style ~= last then windows.set_consolecolor(winstylemap[style] or orig_color); last = style; end end if not orig_color then function setstyle() end end end local function ansi2css(ansi_codes) if ansi_codes == "0" then return "</span>"; end local css = {}; for code in ansi_codes:gmatch("[^;]+") do t_insert(css, cssmap[tonumber(code)]); end return "</span><span style='"..t_concat(css, ";").."'>"; end local function tohtml(input) return input:gsub("\027%[(.-)m", ansi2css); end return { getstring = getstring; getstyle = getstyle; setstyle = setstyle; tohtml = tohtml; };