Chapter 4(d) - Rules for ordered messages

Section 4(d)1 - To say an ordered

To say an ordered scenic message of (tbl - a table-name) running (runtype - a running type):
    let current count be the number of free rows in tbl;
    let maximum be the largest number in tbl;
    let original count be current count;
    if current count is 0:
        let current count be 1;
        clean messages of tbl with maximum;
        if the number of filled rows in tbl is 1, clean last message of tbl;
    display row 1 in tbl running runtype;
    if the original count is 0 and the number of filled rows in tbl is greater than 0 and maximum is greater than 0:
        choose row with used of maximum in tbl;
        change the used entry to 0.