There is one thing you can do to make your program structure really neat, and that is to use a HoH (also could be AoA, AoH or whatever two-level sturcture that fits) to store your call back functions.

Give each of your question a unique identifier, could be a number or a string. Also give each of your choices an identifier, which is unique within the related question.

To demo, I just use string as identifier, and pick HoH as the structure. I can store all the callback functions in this way:

my $callback_functions =
    {
    #I am not suggesting this kind of 1,2,3,4 naming convention in you
+r actual code, this is just for demo, it is never a good idea to hard
+ code the index as part of your identifier.
    "question1" => {
                    "answer1" => \&func1,
                    "answer2" => \&func2,
                    "answer3" => \&func3,
                   },
    "question2" => {
                    "answer1" => \&func4,
                    "answer2" => \&func5,
                    "answer3" => \&func6,
                   },
    "question3" => {
                    "answer1" => \&func7,
                    "answer2" => \&func8,
                    "answer3" => \&func9,
                   }
    };

[download]
But you better use some meaningful identifiers.

By doing this, you can actually avoid those tedious nested if-else, and make your logic much more straight and clear. Now the differences among questions and answers is detached from your logic, and is largely contained in that callback structure.

In reply to Re: simple command line program by pg
in thread simple command line program by primus

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