Adding a built-in functionality

Tkinter's Text widget comes with some handy built-in functionality to handle common text-related functions. Let's leverage these functionalities to implement some common features in the text editor.

Let's start by implementing the cut, copy, and paste features. We now have the editor GUI ready. If you open the program and play with the Text widget, you will see that you can perform basic functions such as cut, copy, and paste in the text area by using Ctrl + X, Ctrl + C, and Ctrl + V respectively. All of these functions exist without us having to add a single line of code toward these functionalities.

The text widget clearly comes with these built-in events. Now, we simply want to connect these events to their respective menu items.

The documentation of Tcl/Tk Universal widget methods tells us that we can trigger events without an external stimulus by using the following command:

widget.event_generate(sequence, **kw)

To trigger the cut event, all we need is the...