Merge 0.9->0.10

[prosody.git] / util / termcolours.lua

diff --git a/util/termcolours.lua b/util/termcolours.lua
index 48b0d2bc48fc6596c23b78bd3c831b41f3637355..a1c01aa58517aa79f3cb685aa9b3480b3079fcd7 100644 (file)
--- a/util/termcolours.lua
+++ b/util/termcolours.lua
@@ -1,7 +1,7 @@
--- Prosody IM v0.2
--- Copyright (C) 2008 Matthew Wild
--- Copyright (C) 2008 Waqas Hussain
--- 
+-- 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.
 --
@@ -9,8 +9,17 @@
 
 local t_concat, t_insert = table.concat, table.insert;
 local char, format = string.char, string.format;
+local tonumber = tonumber;
 local ipairs = ipairs;
-module "termcolours"
+local io_write = io.write;
+
+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;
 
 local stylemap = {
                        reset = 0; bright = 1, dim = 2, underscore = 4, blink = 5, reverse = 7, hidden = 8;
@@ -19,8 +28,24 @@ local stylemap = {
                        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";
-function getstring(style, text)
+local function getstring(style, text)
        if style then
                return format(fmt_string, style, text);
        else
@@ -28,7 +53,7 @@ function getstring(style, text)
        end
 end
 
-function getstyle(...)
+local function getstyle(...)
        local styles, result = { ... }, {};
        for i, style in ipairs(styles) do
                style = stylemap[style];
@@ -39,4 +64,44 @@ function getstyle(...)
        return t_concat(result, ";");
 end
 
-return _M;
+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(style) 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;
+};