Data Transformation Engine Type Tree Importers Reference Guide

Chapter 2 - Using the Importer Wizard COBOL Copybook Importer

Type Tree Importers Reference Guide

Wrapped and Unwrapped Copybook Format

The COBOL Copybook Importer automatically processes copybook files in wrapped

and unwrapped formats.

During the Design Studio installation, two COBOL copybook example files are

installed: wrapped.cpy and unwrapped.cpy. These files are used to test the

COBOL Copybook Importer. To access these files, click Start > Programs >

Mercator version > Design Studio > Examples, then select Design Studio from

the list of Mercator Products then choose COBOL Copybook.

Wrapped Format

A wrapped copybook file has COBOL source records that are terminated by either

a carriage return/line feed (Hex 0D 0A) or line feed (Hex 0A). Each source record

can be fixed or variable length. The important distinguishing characteristic of a

wrapped copybook file format is the terminator (linefeed or carriage

return/linefeed) at the end of each source record.

Note Ensure that the last statement ends with a carriage return/line feed or linefeed

as appropriate.

Unwrapped Format

An unwrapped copybook file has fixed 80-byte source records with no line feed or

carriage return/line feed at the end of each source record.

Copybook Specifications

The COBOL Copybook Importer uses as input a copybook file (.cpy) containing

data description entries, as defined by the ANSI X3.23 specification with the

following exception and additions:

♦ Each entry must have either a data-name or the reserved FILLER clause. (This

is an exception to the ANSI X3.23 specification.)

♦ The COBOL Copybook Importer also supports these USAGE clauses:

! COMPUTATIONAL-3

! COMPUTATIONAL-4

! COMPUTATIONAL-5

! COMPUTATIONAL-X

! COMP-3