Method stringInc

src/main/java/net/optifine/util/StrUtils.java:348–362

(String str)

    }

    public static String stringInc(String str)
    {
        int i = parseInt(str, -1);

        if (i == -1)
        {
            return "";
        }
        else
        {
            ++i;
            String s = "" + i;
            return s.length() > str.length() ? "" : fillLeft("" + i, str.length(), '0');
        }
    }

    public static int parseInt(String s, int defVal)
    {