haxeui/haxeui-core

package haxe.ui.util;

class GUID {
    public static inline function randomIntegerWithinRange(min:Int, max:Int):Int {
        return Math.floor(Math.random() * (1 + max - min) + min);
    }

    public static function createRandomIdentifier(length:Int, radix:Int = 61):String {
        @SuppressWarnings("checkstyle:Indentation")
        var characters = ["0", "1", "2", "3", "4", "5", "6", "7", "8", "9", "A", "B", "C", "D", "E", "F", "G", "H", "I", "J",
                          "K", "L", "M", "N", "O", "P", "Q", "R", "S", "T", "U", "V", "W", "X", "Y", "Z", "a", "b", "c", "d",
                          "e", "f", "g", "h", "i", "j", "k", "l", "m", "n", "o", "p", "q", "r", "s", "t", "u", "v", "w", "x",
                          "y", "z"];
        var id:Array<String> = [];
        radix = (radix > 61) ? 61 : radix;

        while (length-- > 0) {
            id.push(characters[GUID.randomIntegerWithinRange(0, radix)]);
        }

        return id.join("");
    }

    public static function uuid():String {
        var specialChars = ["8", "9", "A", "B"];
        @SuppressWarnings("checkstyle:Indentation")
        return GUID.createRandomIdentifier(8, 15) + "-" +
            GUID.createRandomIdentifier(4, 15) + "-4" +
            GUID.createRandomIdentifier(3, 15) + "-" +
            specialChars[GUID.randomIntegerWithinRange(0, 3)] +
            GUID.createRandomIdentifier(3, 15) + "-" +
            GUID.createRandomIdentifier(12, 15);
    }
}