164 lines
4.6 KiB
Prolog
164 lines
4.6 KiB
Prolog
:- initialization(demo).
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% % % % % % % % % %
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% DEMO MENU LOGIC %
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% % % % % % % % % %
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demo :-
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clear,
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header,
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menu.
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menu :-
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nl,
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options,
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write('DEMO: Enter your choice: '),
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read(Choice),
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choice(Choice).
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header :-
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writeln('* * * * * * * * * * * * * * * * * * * * * * * * *'),
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writeln('* GHENT PROLOG DEMO *'),
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writeln('* * * * * * * * * * * * * * * * * * * * * * * * *').
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options :-
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writeln('-------------------------------------------------'),
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writeln('INPUT DESCRIPTION CATEGORY SOURCE'),
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writeln('-------------------------------------------------'),
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writeln('(1) A password prompt basics password.pl'),
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writeln('(2) Add i in [a..b] maths summer.pl'),
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writeln('(3) A translator meta mib_voorbeelden.pl'),
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writeln('(4) A tale of a ceremony del.con. ceremony.pl'),
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writeln('(5) Maths with Shift/Reset del.con. continuations.pl'),
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% writeln('(6) Alternative lists meta my_list.pl'),
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nl,
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writeln('(interpreter) to enter the interpreter'),
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writeln('(exit) to exit the demo'),
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nl.
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choice(1) :- !, run_login_example, menu.
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choice(2) :- !, run_summer_example, menu.
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choice(3) :- !, run_mib_voorbeelden_example, continue, menu.
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choice(4) :- !, run_ceremony_example, continue, menu.
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choice(5) :- !, run_continuations_example, continue, menu.
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%choice(6) :- !, run_my_list_example, continue, menu.
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choice(interpreter) :- !, run_interpreter, continue, menu.
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choice(exit) :- !, writeln('Exiting...').
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choice(_) :- write('DEMO: Invalid choice, please try again: '), read(Choice), choice(Choice).
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% % % % % % % % % %
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% DEMO REPOSITORY %
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% % % % % % % % % %
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run_login_example :-
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say('Loading login example...'),
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consult('examples/basics/repeat.pl'),
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consult('examples/basics/password.pl'),
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say('Showing login/0'),
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say('You might try logging in with tibo/noaccess and john/john1.'),
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login, login_example_loop, !,
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say('Login example finished.').
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login_example_loop :-
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yes_or_no('Do you want to try again?', (login, login_example_loop), true).
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run_summer_example :-
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say('Loading summer example...'),
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consult('examples/basics/summer.pl'),
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say('Showing my_sum/1'),
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say('You might try summing 1 to 9.'),
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my_sum, summer_example_loop, !,
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say('Summer example finished.').
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summer_example_loop :-
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yes_or_no('Do you want to try again?', (my_sum, summer_example_loop), true).
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run_mib_voorbeelden_example :-
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say('Loading mib_voorbeelden example...'),
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consult('examples/meta/mib_voorbeelden.pl'), clear,
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say('Showing example1/0'), example1, next((
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say('Showing example2/0'), example2, next((
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say('Showing example3/0'), example3)))),
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say('mib_voorbeelden example finished.').
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run_ceremony_example :-
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say('Loading ceremony example...'),
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consult('examples/meta/ceremony.pl'), clear,
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say('Showing ceremony_main/0'),
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ceremony_main,
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say('Ceremony example finished.').
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run_continuations_example :-
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say('Loading continuations example...'),
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consult('examples/meta/continuations.pl'), clear,
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say('Showing continuations_main/0'),
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continuations_main,
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say('Continuations example finished.').
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run_my_list_example :-
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say('Loading my_list example...'),
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consult('examples/meta/my_list.pl'),
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say('Showing my_member/2'),
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showcase(my_member(X, a(b(c))), 'X', X),
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continue,
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say('Showing my_length/2'),
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showcase(my_length(a(b(c)), Length), 'Length', Length),
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say('my_list example finished.').
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run_interpreter :-
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say('Loading interpreter...'),
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consult('examples/meta/ground.pl'),
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consult('examples/meta/interpreter.pl'),
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say('Showing interpreter/0'),
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say('Have fun!'),
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interpreter,
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say('Interpreter finished.').
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% % % % % % % % % % %
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% HELPER PREDICATES %
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% % % % % % % % % % %
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yes_or_no(Question, IfYes, IfNo) :-
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write(Question), write(' (y/n): '),
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read(Answer),
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( ( was_yes(Answer), !, call(IfYes)) ; ( was_no(Answer), !, call(IfNo))).
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was_yes(y).
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was_yes('Y').
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was_yes(yes).
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was_yes('Yes').
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was_yes('YES').
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was_no(n).
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was_no('N').
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was_no(no).
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was_no('No').
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was_no('NO').
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say(Message) :-
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write('DEMO: '),
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writeln(Message).
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showcase(Goal, VarName, Var) :-
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say(Goal),
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call(Goal),
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say(solution(VarName, Var)).
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showcase(Goal) :-
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Goal =.. List,
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say(List),
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call(Goal).
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next(Next) :- yes_or_no('See next?', call(Next), true).
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continue :-
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write('Write anything to continue... '),
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read(_).
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clear :- clear(50).
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clear(0) :- !.
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clear(N) :-
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nl,
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M is N - 1,
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clear(M).
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