anchor.diff:    private
       class function IsHeaderOfChar(const S: UnicodeString; ch: WideChar): boolean;
       class function IsHeaderLine(const S: UnicodeString): boolean;
  -    class function GetLevel(ch: WideChar): integer;
  +    class function GetLevel(NewChar, PrevChar: WideChar): integer;
     public
       class procedure GetHeaders(Ed: TATSynEdit; Data: TATTreeHelperRecords);
     end;
   
   implementation
  +
  +const
  +  cHeaderChars: UnicodeString = '-=\''"`:^~_*+#<>';
   
   class function TTreeHelperRest.IsHeaderOfChar(const S: UnicodeString; ch: WideChar): boolean;
   var
  
positive.code:         DataItem.Y1:= iLine-1;
          DataItem.X2:= 0;
          DataItem.Y2:= iLine;
          DataItem.Level:= GetLevel(S[1]);
          DataItem.Title:= St.Lines[iLine-1];
          DataItem.Icon:= -1;
          Data.Add(DataItem)
  
negative.code: end;
  
  class function TTreeHelperRest.IsHeaderLine(const S: UnicodeString): boolean;
  var
    i: integer;
  begin
    for i:= 1 to Length(cHeaderChars) do
      if IsHeaderOfChar(S, cHeaderChars[i]) then
        exit(true);
    Result:= false;
  end;
  
  class function TTreeHelperRest.GetLevel(NewChar, PrevChar: WideChar): integer;
  begin
    case NewChar of
      '=': Result:= 1;
      '-': Result:= 2;
      '~': Result:= 3;
  