Usage: UNTIL (<expression>) <statement>
       UNTIL (<expression>) {<statements>}

  UNTIL is basically the opposite of WHILE (in the same way UNLESS is
  the opposite of IF).  The loop will continue to iterate as long as
  the <expression> returns false.  For example:

    UNTIL ( foobar > 5 ) ...

  is the same as

    WHILE ( !(foobar > 5) ) ...

  Both UNTIL and WHILE follow the same command syntax; see the helpfile
  for WHILE for more detailed information.

See Also:
  @
  IF
  UNLESS
  WHILE
  expressions
