BEFORE/AFTER FIELD field prefix

Recent I4GL versions deny the specification of a screen-record prefix in BEFORE FIELD and AFTER FIELD clauses, Genero BDL allows this for backward compatibility.

With recent IBM® Informix® 4GL versions, an interactive instruction defining a BEFORE FIELD or AFTER FIELD clause with a screen record or table name field prefix will produce a compiler error.

For example, with c4gl 7.51.FC2:

MAIN

    DEFINE rec RECORD
               cust_id INTEGER,
               cust_name VARCHAR(50)
           END RECORD

    INPUT BY NAME rec.*
       BEFORE FIELD customer.cust_name
|
|      When doing INPUT BY NAME or INPUT ARRAY, the BEFORE/AFTER field names
| can be specified only by the field name suffix.  Screen array and screen
| record elements are not allowed.
| See error number -4391.
         MESSAGE "Customer name"
    END INPUT

END MAIN

With Genero BDL, the field prefix is allowed and ignored.

The field prefix in an INPUT BY NAME statement is useless.

Fixing this difference in Genero BDL would force to change the code, with no added value.