Section 3 - Input Handling

Input handling rules are an object-based rulebook.

An input handling rule for a password lock program (called chosen software) (this is the check for correct passwords rule):
    let N be indexed text;
    let N be "[the topic understood]";
    if N is the password of the chosen software:
        carry out the rewarding successful answering activity with the chosen software;
        rule succeeds;
    otherwise:
        say "[rejection of the chosen software][paragraph break]";
        rule fails.

An input handling rule for an enumerated multiple-choice program (called chosen software) (this is the pick a number rule):
    let N be indexed text;
    let N be "[the topic understood]";
    repeat through the options table of the chosen software:
        let numero be indexed text;
        let numero be "[index entry]";
        if N is numero:
            follow the effect entry;
            rule succeeds;
    say "[out of bounds response of the chosen software][paragraph break]";
    try examining the chosen software.

An input handling rule for a multiple-choice program (called chosen software) (this is the pick a choice rule):
    if the topic understood is a topic listed in the options table of the chosen software:
        follow the effect entry;
        rule succeeds;
    otherwise:
        say "[out of bounds response of the chosen software][paragraph break]";
        rule fails.

An input handling rule for a search engine (called chosen software) (this is the consult software rule):
    try consulting the chosen software about the topic understood instead.

An input handling rule for an email program (called chosen software) (this is the read email rule):
    if the topic understood is a topic listed in the message table of the chosen software:
        if there is an arrival time entry:
            say "[description entry][paragraph break]";
            now the read entry is true;
            rule succeeds;
    say "No such message is available.";
    rule fails.

Computers ends here.