(function (global) {
    var origPrint = print;
    var _serialize = function (obj) {
        var str = JSON.stringify(obj, function(key, value) {
            if (key && typeof value == 'object' && obj === value) {
                return '#[[Circular]]#';
            }
            else if (typeof value === 'function') {
                return '#[[Function]]#';
            }
            else if (typeof value === 'undefined') {
                return '#[undefined]#';
            }
            else if (value && typeof value === 'object' && !Array.isArray(value)) {
                var temp = {};
                Object.keys(value).forEach(function(k){
                    var desc = Object.getOwnPropertyDescriptor(value, k) || {};
                    if (desc.set && desc.get) temp[k] = '#[[Getter/Setter]]#';
                    else if (desc.set) temp[k] = '#[[Setter]]#';
                    else if (desc.get) temp[k] = '#[[Getter]]#';
                    else temp[k] = value[k];
                });
                return temp;
            }
            return value;
        }, 2);
        str = str.replace(/"#\[(.*?)\]#"/g, '$1');
        str = str.replace(/\\"/g,"\uFFFF");
        str = str.replace(/\"([^"]+)\":/g,"$1:").replace(/\uFFFF/g,"\\\"");
        return str;
    }

    var _format = function(f) {
        if (typeof f !== 'string') {
            var objects = [];
            for (var i = 0; i < arguments.length; i++) {
                objects.push(_serialize(arguments[i]));
            }
            return objects.join(' ');
        }

        var i = 1;
        var args = arguments;
        var len = args.length;
        var str = String(f).replace(/%[sdj%]/g, function(x) {
            if (x === '%%') return '%';
            if (i >= len) return x;
            switch (x) {
                case '%s': return String(args[i++]);
                case '%d': return Number(args[i++]);
                case '%j': return _serialize(args[i++]);
                default: return x;
            }
        });
        for (var x = args[i]; i < len; x = args[++i]) {
            str += ' ' + _serialize(x);
        }
        return str;
    };

    global.console = {
        log : function(){
            origPrint( _format.apply(null, arguments) )
        }
    };
})(this);