For externally described files, entries on input specifications are divided
into the following categories:
- Record identification entries (positions 7 through 16, and 21 through
22), which identify the record (the externally described record format) to
which RPG IV functions are to be added.
Figure 1. Externally Described
Record Layout*.. 1 ...+... 2 ...+... 3 ...+... 4 ...+... 5 ...+... 6 ...+... 7 ...+... 8 ...+... 9 ...+... 10
IRcdname+++....Ri..........................................................Comments++++++++++++
- Field description entries (positions 21 through 30, 49 through 66, and
69 through 74), which describe the RPG IV functions to be added to the fields
in the record. Field description entries are written on the lines following
the corresponding record identification entries.
Figure 2. Externally Described
Field Layout*.. 1 ...+... 2 ...+... 3 ...+... 4 ...+... 5 ...+... 6 ...+... 7 ...+... 8 ...+... 9 ...+... 10
I..............Ext-field+..................Field+++++++++L1M1..PlMnZr......Comments++++++++++++