Sgml.HtmlStream.SniffEncoding C# (CSharp) Method

        internal Decoder SniffEncoding()
        {
            Decoder decoder = null;
            if (SniffPattern("<?xml"))
            {
                string version = SniffAttribute("version");
                if (version != null)
                {
                    string encoding = SniffAttribute("encoding");
                    if (encoding != null)
                    {
                        try
                        {
                            Encoding enc = Encoding.GetEncoding(encoding);
                            if (enc != null)
                            {
                                this.m_encoding = enc;
                                return enc.GetDecoder();
                            }
                        }
                        catch (ArgumentException)
                        {
                            // oh well then.
                        }
                    }
                    SniffTerminator(">");
                }
            } 
            if (decoder == null) {
                return SniffMeta();
            }
            return null;
        }