FORMAT

[gls at MIT-AI (Guy L. Steele, Jr.)]

CC: GLS at MIT-AI

I did add two more features to FORMAT.  They are already documented
and everything -- I just forgot to send a note to (BUG LISPM).
SHall I prepare a better note of all changes and send to INFO-LISPM
at some point?

(1) ~{~} (where the iterand string is null) means that an argument
    should be gobbled, whgich had better be a string, to be used as the
    iterand text.  It may contain ~x commands, etc.  This argument is
    gobbled before any arguments processed byu the iteration itself.
(2) ~:}, used to close any flavor of ~{, forces the iterand text to
    be processed at least once even though the list of arguments
    to be iterated over is initially empty.  However, an explicit repeat
    count of zero will override this, and iterate zero times anyway.