Evaluate a group of commands while a condition is true


All commands between while and the matching endwhile() are recorded without being invoked. Once the endwhile() is evaluated, the recorded list of commands is invoked as long as the <condition> is true.

The <condition> has the same syntax and is evaluated using the same logic as described at length for the if() command.

The commands break() and continue() provide means to escape from the normal control flow.

Per legacy, the endwhile() command admits an optional <condition> argument. If used, it must be a verbatim repeat of the argument of the opening while command.