Loop

A statement of the form:

    LOOP S END

repeatedly executes S until it raises the exit-exception. Informally it is like:

    TRY S; S; S; ... EXCEPT  exit-exception  => (*skip*)  END
Last modified on Wed Apr  3 09:39:51 PST 1996 by heydon
     modified on Mon Apr 18 14:04:28 PDT 1994 by kalsow