Design XML File Format and Corresponding Data Structure

There is a GUI application whose main objective is to draw several geometric shapes, such as rectangles, squares, grids and horizontal lines on the screen. Your task is to design two sets of data structures to support the mentioned application: * A RAM-based internal set of linked lists (one for every type of geometrical shape being drawn) which will hold the coordinates and other attributes, such as color, of the program's visual objects. <!-- --> * A filesystem-based XML file which will store the geometrical shapes and their attributes. You will not be responsible for any of the GUI aspects. You must have experience designing XML file formats and parsing them, preferably using Xerces-C or similar library. Do not make a bid yet. Just drop me a comment and I will provide more details. ## Deliverables There will be a bonus if you code the XML input stage.