menu-driven in prolog
Prolog Menu-Driven Program
Here's an example of a menu-driven program in Prolog:
% Define the menu options
menu_option(1, "Option 1").
menu_option(2, "Option 2").
menu_option(3, "Option 3").
menu_option(4, "Exit").
% Display the menu options
display_menu :-
writeln("Menu:"),
forall(menu_option(Option, Description),
format("~w. ~w~n", [Option, Description])).
% Handle user input
handle_input(1) :-
writeln("You selected Option 1").
handle_input(2) :-
writeln("You selected Option 2").
handle_input(3) :-
writeln("You selected Option 3").
handle_input(4) :-
writeln("Exiting...").
% Main loop
main_loop :-
repeat,
display_menu,
read(Input),
handle_input(Input),
Input = 4.
% Start the program
start :-
writeln("Welcome to the Prolog Menu-Driven Program!"),
main_loop.
To run the program, you can call the start/0
predicate. This will display the menu options and wait for user input. The program will continue running until the user selects option 4 to exit.
Please note that this is just a simple example to demonstrate the concept of a menu-driven program in Prolog. You can modify and expand it according to your specific requirements.
I hope this helps!