System.Security.Util.StringExpressionSet.GenerateString C# (CSharp) Method

        protected void GenerateString()
        {
            if (m_list != null)
            {
                StringBuilder sb = new StringBuilder();
            
                IEnumerator enumerator = this.m_list.GetEnumerator();
                bool first = true;
            
                while (enumerator.MoveNext())
                {
                    if (!first)
                        sb.Append( m_separators[0] );
                    else
                        first = false;
                            
                    String currentString = (String)enumerator.Current;
                    if (currentString != null)
                    {
                        int indexOfSeparator = currentString.IndexOf( m_separators[0] );

                        if (indexOfSeparator != -1)
                            sb.Append( '\"' );

                        sb.Append( currentString );

                        if (indexOfSeparator != -1)
                            sb.Append( '\"' );
                    }
                }
            
                m_expressions = sb.ToString();
            }
            else
            {
                m_expressions = null;
            }
        }            
        

        public StringExpressionSet Intersect(StringExpressionSet ses)
        {
            if (this.IsEmpty() || ses == null || ses.IsEmpty())
            {
                return(this.CreateNewEmpty());
            }
            this.CheckList();
            ses.CheckList();
            StringExpressionSet stringExpressionSet = this.CreateNewEmpty();

            for (int i = 0; i < this.m_list.Count; i++)
            {
                for (int j = 0; j < ses.m_list.Count; j++)
                {
                    if (this.StringSubsetString((string)this.m_list[i], (string)ses.m_list[j], this.m_ignoreCase))
                    {
                        if (stringExpressionSet.m_list == null)
                        {
                            stringExpressionSet.m_list = new ArrayList();
                        }
                        stringExpressionSet.AddSingleExpressionNoDuplicates((string)this.m_list[i]);
                    }
                    else if (this.StringSubsetString((string)ses.m_list[j], (string)this.m_list[i], this.m_ignoreCase))
                    {
                        if (stringExpressionSet.m_list == null)
                        {
                            stringExpressionSet.m_list = new ArrayList();
                        }
                        stringExpressionSet.AddSingleExpressionNoDuplicates((string)ses.m_list[j]);
                    }
                }
            }
            stringExpressionSet.GenerateString();
            return(stringExpressionSet);
        }