-- 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; };