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

        internal void NoteCaptureName(string name, int pos)
        {
            if (_capnames == null)
            {
                _capnames = new Hashtable();
                _capnamelist = new List<string>();
            }

            if (!_capnames.ContainsKey(name))
            {
                _capnames.Add(name, pos);
                _capnamelist.Add(name);
            }
        }