AspNetEdit.Editor.ComponentModel.Document.Serialize C# (CSharp) Метод

        public string Serialize(string designerDocumentFragment)
        {
            if (host == null)
                throw new Exception("The document cannot be persisted without a host");

            string serializedDoc = string.Empty;
            StringWriter writer = new StringWriter ();

            //keep method argument meaningfully named, but keep code readable!
            string frag = designerDocumentFragment;
            int length = frag.Length;

            int pos = 0;
            SMode mode = SMode.Free;

            while (pos < length)
            {
                char c = frag [pos];

                switch (mode)
                {
                    //it's freely copying to output, but watching for a directive or control placeholder
                    case SMode.Free:
                        if (c == '<')
                        {
                            if ((pos + 10 < length) && frag.Substring (pos + 1, 10) == "aspcontrol") {
                                mode = SMode.ControlId;
                                pos += 10;
                                break;
                            }
                            else if ((pos + 20 < length) && frag.Substring (pos + 1, 20) == "directiveplaceholder") {
                                mode = SMode.DirectiveId;
                                pos += 20;
                                break;
                            }
                        }

                        writer.Write (c);
                        break;

                    //it's found a directive placeholder and is scanning for the ID
                    case SMode.DirectiveId:
                        if (c == 'i' && (pos + 4 < length) && frag.Substring (pos, 4) == "id=\"") {
                            int idEnd = frag.IndexOf ('"', pos + 4 + 1);
                            if (idEnd == -1) throw new Exception ("Identifier was unterminated");
                            int id  = Int32.Parse (frag.Substring (pos + 4, (idEnd - pos - 4)));

                            //TODO: more intelligent removal/copying of directives in case of fragments
                            //works fine with whole document.
                            string directive = RemoveDirective (id);
                            writer.Write (directive);

                            mode = SMode.DirectiveEnd;
                            pos = idEnd;
                        }
                        break;

                    //it's found a control placeholder and is scanning for the ID
                    case SMode.ControlId:
                        if (c == 'i' && (pos + 4 < length) && frag.Substring (pos, 4) == "id=\"") {
                            int idEnd = frag.IndexOf("\"", pos + 4);
                            if (idEnd == -1) throw new Exception ("Identifier was unterminated");
                            string id  = frag.Substring (pos + 4, (idEnd - pos - 4));

                            DesignContainer dc = (DesignContainer) host.Container;
                            Control control = dc.GetComponent (id) as Control;
                            if (control == null) throw new Exception ("Could not retrieve control "+id);
                            ControlPersister.PersistControl (writer, control);

                            mode = SMode.ControlEnd;
                            pos = idEnd;
                        }
                        break;

                    //it's found the control's ID and is looking for the end
                    case SMode.ControlEnd:
                        if (c == '<' && (pos + 13 < length) && frag.Substring (pos, 13) == "</aspcontrol>") {
                            pos += 12;
                            mode = SMode.Free;
                        }
                        break;

                    //it's found the placeholder's ID and is looking for the end
                    case SMode.DirectiveEnd:
                        if (c == '/' && (pos + 2 < length) && frag.Substring (pos, 2) == "/>") {
                            pos += 1;
                            mode = SMode.Free;
                        }
                        break;
                }

                pos++;
            }

            serializedDoc = writer.ToString ();
            writer.Close ();

            return serializedDoc;
        }