Sgml.HtmlStream.HtmlStream C# (CSharp) Method

        public HtmlStream(Stream stm, Encoding defaultEncoding)
        {            
            if (defaultEncoding == null) defaultEncoding = Encoding.UTF8; // default is UTF8
            if (!stm.CanSeek){
                // Need to be able to seek to sniff correctly.
                stm = CopyToMemoryStream(stm);
            }
            this.stm = stm;
            rawBuffer = new Byte[BUFSIZE];
            rawUsed = stm.Read(rawBuffer, 0, 4); // maximum byte order mark
            this.m_buffer = new char[BUFSIZE];

            // Check byte order marks
            this.m_decoder = AutoDetectEncoding(rawBuffer, ref rawPos, rawUsed);
            int bom = rawPos;
            if (this.m_decoder == null)
            {
                this.m_decoder = defaultEncoding.GetDecoder();
                rawUsed += stm.Read(rawBuffer, 4, BUFSIZE-4);                
                DecodeBlock();
                // Now sniff to see if there is an XML declaration or HTML <META> tag.
                Decoder sd = SniffEncoding();
                if (sd != null) {
                    this.m_decoder = sd;
                }
            }            

            // Reset to get ready for Read()
            this.stm.Seek(0, SeekOrigin.Begin);
            this.pos = this.used = 0;
            // skip bom
            if (bom>0){
                stm.Read(this.rawBuffer, 0, bom);
            }
            this.rawPos = this.rawUsed = 0;
            
        }