Micro Focus Enterprise Developer 3.0 for Eclipse > Programming > Mainframe Programming > AppMaster Builder > How to > Program Painter > To define or redefine the Commarea

To define or redefine the Commarea

Restriction: This topic applies only when the AppMaster Builder AddPack has been installed, and applies only to Windows platforms.

Accept or override the default length (80 bytes) of the Commarea field and optionally redefine it into multiple fields. For main programs, do this in Working-Storage; for sub programs, do this in the Linkage Section.

To assign a length to TP-USERAREA, type the variable value assignment statement, &TP-USER-LEN, in column 12, and the keyword SYM1 in the columns 4 through 7. SYM1 places the variable at the top of your program. For example:
```
   SYM1    &TP-USER-LEN = 49
```
Generated AMB source:
```
01  TP-COMMAREA.
         .
         .
    05  TP-USERAREA            PIC X(49).
```

To redefine TP-USERAREA, type a redefinition data structure directly into the program, or put it into a data structure object and include it in the program. Use any of the following keyword/source code combinations:

CA05 - Define a COBOL redefinition data structure in the program. For example:

   SYM1    &TP-USER-LEN = 49
    .
    .
   CA05    CA-REDEF.
           10  CA-EMPLOYEE-NAME     PIC X(20).
           10  CA-EMPLOYEE-TITLE    PIC X(20).
           10  CA-EMPLOYEE-SSN      PIC X(09).

Generated AMB source:

 01  TP-COMMAREA.
          .
          .
          .
 01  CA-REDEF REDEFINES TP-COMMAREA.
     05  FILLER                        PIC X(40).
     05  TP-USERAREA                   PIC X(49).
     05  CA-REDEF      REDEFINES TP-USERAREA.
         10  CA-EMPLOYEE-NAME         PIC X(20).
         10  CA-EMPLOYEE-TITLE        PIC X(20).
         10  CA-EMPLOYEE-SSN          PIC X(09).

CADS - Define a redefinition data structure object and include it in the program with the CADS keyword. For example:
```
   CADS    PGM-USERAREA
```
The generated AMB source is identical to the source generated by the CA05 keyword in the example above.

CA - Using the Data Structure Editor format, define a redefinition data structure in the Program Painter. For example:

   SYM1    &TP-USER-LEN = 49
    .
    .
    .
   CA      PGM-USERAREA
               10  CA-EMPLOYEE-NAME     X20
               10  CA-EMPLOYEE-TITLE    X20
               10  CA-EMPLOYEE-SSN      X09

The generated AMB source is identical to the source generated by the CA05 keyword in the example above.

Generated AMB source:

 01  TP-COMMAREA.
          .
          .
          .
 01  FILLER REDEFINES TP-COMMAREA.
     05  TP-USERAREA                  PIC X(49).
     05  PGM-USERAREA    REDEFINES TP-USERAREA.
         10  CA-EMPLOYEE-NAME         PIC X(20).
         10  CA-EMPLOYEE-TITLE        PIC X(20).
         10  CA-EMPLOYEE-SSN          PIC X(09).

Using the CA keyword:

   SYM1    &TP-USER-LEN = 49
    .
    .
    .
   CA      PGM-USERAREA
               10  CA-EMPLOYEE-NAME     X20
               10  CA-EMPLOYEE-TITLE    X20
               10  CA-EMPLOYEE-SSN      X09

The generated AMB source is identical to the source generated by the CA05 keyword in the example above.

Using the CADS keyword:

   CADS    PGM-USERAREA