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Initial data commit

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Ingy döt Net 2023-07-01 11:58:00 -04:00
parent 72d218235f
commit f23f22d71c
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Task/Menu/Prolog/menu-1.pro Normal file
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rosetta_menu([], "") :- !. %% Incase of an empty list.
rosetta_menu(Items, SelectedItem) :-
repeat, %% Repeat until everything that follows is true.
display_menu(Items), %% IO
get_choice(Choice), %% IO
number(Choice), %% True if Choice is a number.
nth1(Choice, Items, SelectedItem), %% True if SelectedItem is the 1-based nth member of Items, (fails if Choice is out of range)
!.
display_menu(Items) :-
nl,
foreach( nth1(Index, Items, Item),
format('~w) ~s~n', [Index, Item]) ).
get_choice(Choice) :-
prompt1('Select a menu item by number:'),
read(Choice).