Method replaceSuffix

src/main/java/net/optifine/util/StrUtils.java:541–564

(String str, String suffix, String suffixNew)

    }

    public static String replaceSuffix(String str, String suffix, String suffixNew)
    {
        if (str != null && suffix != null)
        {
            if (!str.endsWith(suffix))
            {
                return str;
            }
            else
            {
                if (suffixNew == null)
                {
                    suffixNew = "";
                }

                str = str.substring(0, str.length() - suffix.length());
                return str + suffixNew;
            }
        }
        else
        {
            return str;
        }
    }

    public static String replacePrefix(String str, String prefix, String prefixNew)
    {