using System;

using System.IO;

using YamlDotNet.RepresentationModel;

using YamlDotNet.Core;

using YamlDotNet.Core.Events;

public class Program

{

    public class NoDotsEmitter : IEmitter

    {

        private readonly IEmitter inner;

        public NoDotsEmitter(IEmitter inner)

        {

            this.inner = inner;

        }

        public void Emit(ParsingEvent @event)

        {

            var documentEnd = @event as DocumentEnd;

            if (documentEnd != null)

            {

                inner.Emit(new DocumentEnd(true));

            }

            else

            {

                inner.Emit(@event);

            }

        }

    }

    public static void Main()

    {

        var input = new StringReader(@"

Configuration: {}

");

        var yaml = new YamlStream(); 

        yaml.Load(input);

        input.Dispose();

        var config = ((YamlMappingNode)yaml.Documents[0].RootNode).Children["Configuration"];

        ((YamlMappingNode)yaml.Documents[0].RootNode).Children["Configuration"] = new YamlMappingNode

        {

            { "A1", "1" },

            { "A2", "2" },

            { "A3", "3" },

            { "A4", "4" },

            { "A5", "5" }

        };

​

        var emitter = new NoDotsEmitter(new Emitter(Console.Out));

        yaml.Save(emitter, false);

    }

}