4.3. FOR

Syntax:

        FOR expr [ USING var ] LOOP
          statement_block
          [ EXIT LOOP ]
        END LOOP
      

statement_block is executed expr times. If USING var is defined, the index is kept in var, beginning with zero and incrementing towards expr. If var is not large enough to hold expr, a warning is generated. If [EXIT LOOP] is used, the loop is immediately exited.

On exit, var is equal to expr.