//Rextester.Program.Main is the entry point for your code. Don't change it.

//Compiler version 4.0.30319.17929 for Microsoft (R) .NET Framework 4.5

​

using System;

using System.Collections.Generic;

using System.Linq;

using System.Text.RegularExpressions;

​

namespace Rextester

{

    public class Notes {

        public string Nota {get;set;}

        public string Tag {get; set;}

        public string SubTag {get; set;}

        public DateTime Date {get;set;}

    }

    public class Program

    {

       public Notes GetActionNotesTagEntryFromTag(string textWithTag, DateTime tagDateTime)

        {

​

            if (string.IsNullOrEmpty(textWithTag)) return null;

​

                string tag = null;

                string subTag = null;

                int subTagIdentifyer = textWithTag.IndexOf("#");

​

                 if (subTagIdentifyer > -1)

                 {

                    subTag = textWithTag.Substring(subTagIdentifyer + 1);

                    tag = textWithTag.Substring(0, subTagIdentifyer);

                 }

                else 

                {

                    tag = textWithTag;

                }

               return new Notes

                {

                    Date = tagDateTime,

                    Tag = tag,

                    SubTag = subTag,

                    Nota = textWithTag

                };

​

        }

        public static void Main(string[] args)

        {

            string text1 = "qweqw[qwe#w]qweqweqw";

            DateTime date = new DateTime();

            int tagStartChar = text1.IndexOf("[");

            int tagEndChar = text1.IndexOf("]");

            string tagForTest = text1.Substring(tagStartChar+1, (tagEndChar - tagStartChar -1));

            Program t = new Program();

            Notes getNoteInfo1 = t.GetActionNotesTagEntryFromTag(tagForTest, date);

            Console.WriteLine("Note ->    {0}\n Tag ->    {1} \n SubTag -> {2}", getNoteInfo1.Nota, getNoteInfo1.Tag, getNoteInfo1.SubTag);

        }

    }

}