console.js

#!/usr/bin/env node


var M=require("./build/math.js");
(function (){
	
	function con(){
		global.console.log=function(){};
		function color(str){
			return '\x1b[1m' + (str || "") + '\x1b[22m';
		}
		var stdin = process.openStdin(),
			stdio = process.binding("stdio"),
			stderr= process.stderr,
			stdout= process.stdout;

		var line = "";
		stderr.write("Javascript-cas (http://aantthony.github.com/javascript-cas/)\n");
		stderr.write(">> ");
		stdin.on("data", function (c) {
			c = c + ""
			line+=c;
			switch (line[line.length-1]) {
				case "\n": case "\r": case "\u0004":
				line=line.trim();
				if(line=="exit"){
					stdout.write("\n");
					process.exit()
				}else if(line==="clear"){
					stdout.write("\x1b[H\x1b[2J");
				}else if(line){
					try{
					    var expr = M(line).simplify()
						stdout.write(expr.toString()+"\n");
					}catch(ex){
						stderr.write(color(ex)+"\n");
					}
				}	
				stderr.write(">> ");
				line="";
				break;
			default:
				break
			}
		});
	}
	con();
}());