Novell.Directory.Ldap.Rfc2251.RfcFilter.hex2int C# (CSharp) Method

        internal static int hex2int(char c)
        {
            return (c >= '0' && c <= '9')?c - '0':(c >= 'A' && c <= 'F')?c - 'A' + 10:(c >= 'a' && c <= 'f')?c - 'a' + 10:- 1;
        }