AmandaInterface.AmandaTagParser.GetTag C# (CSharp) Метод

        public AmandaTag GetTag(int line)
        {
            return AmandaTags.Find(q => q.BeginLocation.Y <= line && q.EndLocation.Y >= line);
        }

        private void _AutoIndentNeeded(object sender, AutoIndentEventArgs e)
        {
            Match isOtherwiseRegex = Regex.Match(e.LineText.Trim(), ",* otherwise");
            int   currentIndent    = e.LineText.TakeWhile(q => q == ' ').Count(); //shouldn't be too inefficient
            int   at = e.LineText.IndexOf('=');

            AmandaTagParser tagParser = new AmandaTagParser();

            tagParser.Parse(textBox.Text);

            /*
             *              All these todo's might not be neccessary, it's pretty good right now
             */
            //If the line contains a where, we want the next lines to be indented by a tab
            if (Regex.IsMatch(e.LineText, "where"))
            {
                e.ShiftNextLines = e.TabLength;
            }

            //if the line is a condition, we want to find the '=' and indent to there, that's how youre supposed to do conditions in amanda
            else if (Regex.IsMatch(e.LineText.Trim(), ",* if"))
            {
                e.ShiftNextLines = at - currentIndent;
            }

            //If line is empty | prev line is empty | contains otherwise (which indicates the end of an if/else statement)
            else if (e.LineText.Trim() == "" || e.PrevLineText.Trim().Count() == 0 || Regex.IsMatch(e.LineText.Trim(), ",* otherwise") == true)
            {
                //Get the tag based on our current line, if we are at line 3, and there is a big function going from line 1-5, it will return that.
                AmandaTag tag = tagParser.GetTag(e.iLine);
                if (tag != null)
                {
                    e.ShiftNextLines = tag.BeginLocation.X - at;
                }

                //No function found? No problem, resort to a tab
                else
                {
                    e.ShiftNextLines = -e.TabLength;
                }
            }
        }