pastebin - collaborative debugging

using System;
using System.Text.RegularExpressions;
namespace myapp
{
    class Class1
    {
        static void Main(string[] args)
        {
            String sourcestring = @"[[Text:hi this is a nice sentence[[very nice]] I like this text]] this is not related [[not]]";
            Regex re = new Regex(@"\[(?>[^\[\]]+|\[(?<DEPTH>)|\](?<-DEPTH>))*(?(DEPTH)(?!))\]");
            MatchCollection mc = re.Matches(sourcestring);

            // to iterate through the matches and catpure groups
            int mIdx = 0;
            foreach (Match m in mc)
            {
                for (int gIdx = 0; gIdx < m.Groups.Count; gIdx++)
                {
                    Console.WriteLine("[" + mIdx + "][" + re.GetGroupNames()[gIdx] + "] = " + m.Groups[gIdx].Value);
                }
                mIdx++;
            }

            //  to iterate through the [[Text:... matches only
            foreach (Match m in mc)
            {
                if (m.Groups[0].Value.Substring(0, 7) == "[[Text:")
                {
                    Console.WriteLine(m.Groups[0].Value);
                }
            }
        }
    }
}