pc.cu

allows data in a defined attribute with an output-conversion or correlative to be changed character by character. The 'cu' processing code is placed in the 'input-conversion'.

If 'cu' is not specified, existing data is erased and nulled when editing is started.

The 'cu' processing code is required ONLY when there is another conversion present in the attribute-defining item. For example, having a 'cu' processing code within an attribute which contains a date and a corresponding 'd' output conversion code in its attribute-defining item allows changing PART of the date field, rather than having to re-enter the entire date.