System.Text.RegularExpressions.RegexParser.NoteCaptureSlot C# (CSharp) Method

        internal void NoteCaptureSlot(int i, int pos)
        {
            if (!_caps.ContainsKey(i))
            {
                // the rhs of the hashtable isn't used in the parser

                _caps.Add(i, pos);
                _capcount++;

                if (_captop <= i)
                {
                    if (i == int.MaxValue)
                        _captop = i;
                    else
                        _captop = i + 1;
                }
            }
        }