namespace JD.Serializers.Xml
{
    internal static class XmlWhiteSpaceEncoder
    {
        #region Constants

        private const string EncodingEscapeCharacter = "__";

        #endregion

        #region Methods

        public static string Encode(char c)
        {
            return EncodingEscapeCharacter + (uint)c;
        }

        public static bool TryParse(string encoded, out char c)
        {
            if (encoded.StartsWith(EncodingEscapeCharacter))
            {
                string whiteSpaceNumber = encoded.Substring(EncodingEscapeCharacter.Length);

                uint whiteSpaceId;
                if (uint.TryParse(whiteSpaceNumber, out whiteSpaceId))
                {
                    c = (char)whiteSpaceId;
                    return true;
                }
            }

            c = default(char);
            return false;
        }

        #endregion
    }
}