PhantomJS用ターミナル出力のカラー表示

gistfile1.js

function terminalColor(msg, fg, bg, dc) {
    if (!fg && !bg && !dc) return msg;
    var m = {black:"0",red:"1",green:"2",yellow:"3",blue:"4",magenta:"5",cyan:"6",white:"7",
	     uline:"4",bold:"1"};
    if (m[fg]) msg = "\u001b[3"+m[fg]+"m"+msg+"\u001b[39m";
    if (m[bg]) msg = "\u001b[4"+m[bg]+"m"+msg+"\u001b[49m";
    if (dc) {
	var decos = dc.split(',');
	for (var i=0; i<decos.length; i++) {
	    if (m[decos[i]]) msg = "\u001b["+m[decos[i]]+"m"+msg+"\u001b[0m";
	}
    }
    return msg;
}

console.log(terminalColor("知に働けば角が立つ。",      "red",    "black"));
console.log(terminalColor("情に棹させば流される。",    "green",  "black", "uline"));
console.log(terminalColor("意地を通せば窮屈だ。",      "yellow", "black", "bold"));
console.log(terminalColor("兎角に人の世は住みにくい。", "cyan",   "black", "uline,bold"));
phantom.exit();