LumiSoft.Net.TextUtils.SplitQuotedString C# (CSharp) Method

        public static string[] SplitQuotedString(string text,char splitChar)
        {
            ArrayList     splitParts         = new ArrayList();     // Holds splitted parts
            StringBuilder currentSplitBuffer = new StringBuilder(); // Holds active
            bool          inQuotedString     = false;               // Holds flag if position is quoted string or not

            foreach(char c in text){
                if(c == '\"'){
                    // Start/end quoted string area
                    inQuotedString = !inQuotedString;
                }

                // Current char is split char and it isn't in quoted string, do split
                if(!inQuotedString && c == splitChar){
                    // Add current currentSplitBuffer value to splitted parts list
                    splitParts.Add(currentSplitBuffer.ToString());

                    // Begin next splitted part (clear old buffer)
                    currentSplitBuffer = new StringBuilder();
                }
                else{
                    currentSplitBuffer.Append(c);
                }
            }
            // Add last split part to splitted parts list
            splitParts.Add(currentSplitBuffer.ToString());

            string[] retVal = new string[splitParts.Count];
            for(int i=0;i<splitParts.Count;i++){
                retVal[i] = (string)splitParts[i];
            }

            return retVal;
        }

        /// <summary>
        /// Parses SIP_Uri from SIP-URI string.
        /// </summary>
        /// <param name="value">SIP-URI  string.</param>
        /// <returns>Returns parsed SIP_Uri object.</returns>
        /// <exception cref="ArgumentNullException">Raised when <b>reader</b> is null.</exception>
        /// <exception cref="SIP_ParseException">Raised when invalid SIP message.</exception>
        protected override void ParseInternal(string value)
        {
            // Syntax: sip:/sips: username@host:port *[;parameter] [?header *[&header]]

            if (value == null)
            {
                throw new ArgumentNullException("value");
            }

            value = Uri.UnescapeDataString(value);

            if (!(value.ToLower().StartsWith("sip:") || value.ToLower().StartsWith("sips:")))
            {
                throw new SIP_ParseException("Specified value is invalid SIP-URI !");
            }

            StringReader r = new StringReader(value);

            // IsSecure
            this.IsSecure = r.QuotedReadToDelimiter(':').ToLower() == "sips";

            // Get username
            if (r.SourceString.IndexOf('@') > -1)
            {
                this.User = r.QuotedReadToDelimiter('@');
            }

            // Gets host[:port]
            string[] host_port = r.QuotedReadToDelimiter(new char[] { ';', '?' }, false).Split(':');
            this.Host = host_port[0];
            // Optional port specified
            if (host_port.Length == 2)
            {
                this.Port = Convert.ToInt32(host_port[1]);
            }

            // We have parameters and/or header
            if (r.Available > 0)
            {
                // Get parameters
                string[] parameters = TextUtils.SplitQuotedString(r.QuotedReadToDelimiter('?'), ';');
                foreach (string parameter in parameters)
                {
                    if (parameter.Trim() != "")
                    {
                        string[] name_value = parameter.Trim().Split(new char[] { '=' }, 2);
                        if (name_value.Length == 2)
                        {
                            this.Parameters.Add(name_value[0], TextUtils.UnQuoteString(name_value[1]));
                        }
                        else
                        {
                            this.Parameters.Add(name_value[0], null);
                        }
                    }
                }

                // We have header
                if (r.Available > 0)
                {
                    this.m_Header = r.ReadToEnd();
                }
            }
        }