index.js

// Note that there is no license, you are free to use this as you wish

module.exports = {
    seed: function(seed, t) {
        var t = (t) ? t : "iehwfyqdhihdihe3jd";
        var cipher = crypto.createCipher('aes192', seed)
        var result = cipher.update(t, 'utf8', 'hex')
        result += cipher.final('hex');
        return result;
    },
    centerHor: function(a, g, k) {
        if (!k) k = a.length
        var f = Math.abs(a.length - k)
        var b = (g - k - 1) / 2
        var c = "";
        for (var i = 0; i < b; i++) {
            c += " ";
        }
        c += a;
        return this.main.fill(c, g, c.length - f)
    },
    fill: function(a, b, k) {
        a = a.toString()
        if (!k) k = a.length
        var c = b - k
        for (var i = 0; i < c; i++) {
            a += " ";
        }
        return a
    },
    wrap: function(string, maxlen) {
        var results = [];

        while (0 == 0) {
            if (string.length < maxlen) {
                results.push(string);
                break;
            }
            var s = string.substring(0, maxlen);
            var index = s.lastIndexOf(" ");
            if (index != -1) {
                results.push(s.substring(0, index))
                string = string.substring(index + 1)
            } else {
                results.push(string);
                break;
            }
        }
        return results;
    },
    sprintf: function(string) {
        var args = arguments;

        var str = [];
        for (var i = 0; i < args.length; ++i) str.push(i.toString())

        var pattern = new RegExp("%([" + str.join("|") + "])", "g");
        return (string + "").replace(pattern, function(match, index) {
            return args[index];
        });
    }

}