unit JsonUtilUnt;

interface
type
     TJSONTokener = class(TObject)
     private
        jsonStr:WideString;
     public
        constructor Create;
        destructor destroy;override;
        procedure AddElement(nodeName,nodeValue:String);
        procedure ClearElement;
        function toString:WideString;
     end;

implementation
{ TJSONTokener }

constructor TJSONTokener.Create;
begin
   inherited;
end;

destructor TJSONTokener.destroy;
begin
   inherited;
end;

procedure TJSONTokener.AddElement(nodeName,nodeValue:String);
begin
  if length(jsonStr)>0 then
     jsonStr:=ConCat(jsonStr,',"',nodeName,'":',nodeValue)
  else
     jsonStr:=ConCat(jsonStr,'"',nodeName,'":',nodeValue);
end;

procedure TJSONTokener.ClearElement;
begin
   jsonStr:='';
end;

function TJSONTokener.toString:WideString;
begin
   Result:=ConCat('{',jsonStr,'}');
end;

end.