The if-then-else construct takes various forms, such as the following:
\IF <condition> \THEN <stmt> \IF <condition> \THEN <stmt> \ELSE <stmt> \IF <condition> \THEN <stmt> \ELSEIF <stmt> \THEN <stmt>Note that there is no limit placed on the number of
\ELSEIF
s that may be used in an if-then-else construct.
For example, the commands:
\IF some condition is true \THEN \BEGIN some statement\\ another statement\\ yet another statement \END \ELSEIF some other condition is true \THEN \BEGIN some statement\\ another statement\\ yet another statement \END \ELSEIF some even more bizarre condition is met \THEN do something else \ELSE do the default actions
would produce the following output: