public override ITextArea[] VisitLineBlockLine([NotNull] LineBlockLineContext context)
            {
                var indentation = context.indentation();
                var result      = new List <ITextArea>();
                int length      = indentation == null ? 0 : indentation.GetText().Length;

                IndentationTracker.Track(length);

                var spanVisitor = new TextAreaVisitor().Inherit(this);
                var bodyContext = context.span();

                foreach (var atom in bodyContext)
                {
                    result.Add(spanVisitor.VisitSpan(atom));
                }

                var starTextContext = context.starText();

                if (starTextContext != null)
                {
                    result.Add(spanVisitor.VisitStarText(starTextContext));
                }

                result.First().Indentation = length;
                return(result.ToArray());
            }
            public override ITextArea[] VisitLineNoBreak([NotNull] LineNoBreakContext context)
            {
                var result      = new List <ITextArea>();
                var indentation = context.indentation();
                int length      = indentation == null ? 0 : indentation.GetText().Length;

                IndentationTracker.Track(length);

                var spanVisitor = new TextAreaVisitor().Inherit(this);

                result.Add(spanVisitor.VisitSpanLineStartNoStar(context.spanLineStartNoStar()));
                var spanContext = context.span();

                if (spanContext != null)
                {
                    foreach (var atom in spanContext)
                    {
                        result.Add(spanVisitor.VisitSpan(atom));
                    }
                }

                if (result.Last().TypeCode == ElementType.Text)
                {
                    result.Last().Content.Append("\n");
                }
                else
                {
                    result.Add(new TextArea("\n", result.Last().Scope));
                }

                result.First().Indentation = length;
                return(result.ToArray());
            }
            public override ITextArea[] VisitLineNormal([NotNull] LineNormalContext context)
            {
                var result  = new List <ITextArea>();
                var special = context.lineSpecial();

                if (special != null)
                {
                    var text = context.GetText().TrimStart() + "\n";
                    return(new ITextArea[] { new TextArea(text, new Scope {
                            LineStart = context.Start.Line, LineEnd = context.Stop.Line
                        }) });
                }

                var indentation = context.indentation();
                int length      = indentation == null ? 0 : indentation.GetText().Length;

                IndentationTracker.Track(length);

                var spanVisitor = new TextAreaVisitor().Inherit(this);
                var start       = context.spanLineStartNoStar();

                if (start != null)
                {
                    foreach (var item in start)
                    {
                        result.Add(spanVisitor.VisitSpanLineStartNoStar(item));
                    }
                }

                var bodyContext = context.span();

                foreach (var atom in bodyContext)
                {
                    result.Add(spanVisitor.VisitSpan(atom));
                }

                var noStar = context.spanNoStar();

                if (noStar != null)
                {
                    foreach (var item in noStar)
                    {
                        result.Add(spanVisitor.VisitSpanNoStar(item));
                    }
                }

                if (result.Last().TypeCode == ElementType.Text)
                {
                    result.Last().Content.Append("\n");
                }
                else
                {
                    result.Add(new TextArea("\n", result.Last().Scope));
                }

                result.First().Indentation = length;
                return(result.ToArray());
            }