FOR /IN

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FOR /IN

            [SIC\]FOR Loop_Variable /IN List_Variable

        Execute  a  generalized  loop,  for  all  the  values  in List_Variable.
        List_Variable is a 1-D (or scalar) variable of any type,  i.e. numerics,
        logicals,  or character strings.  The loop variable is undefined outside
        the loop, and must not be previously defined. It will be implicitly  de-
        fined  as a scalar with the same type and kind as the List_Variable. For
        example:
                DEFINE CHARACTER*8 files[3]
                LET files "a.txt" "b.txt" "c.txt"
                FOR f /IN files
                  SAY 'f'
                NEXT f
        The loop executes with the Loop_Variable taking the value of  each  ele-
        ment of the List_Variable, in order.