IBM DOS/VS COBOL allows the following form of the ADVANCING clause in a Format 1 WRITE statement:
{BEFORE} ADVANCING {identifier-2 LINES}
{AFTER } {integer LINES }
{special-name }
The special-name option is the only one that is not also in ACUCOBOL-GT. The special-name is one of the following special names, or a mnemonic for it defined in the SPECIAL-NAMES paragraph:
| Special Name | Equivalent |
|---|---|
| CSP | 0 LINES |
| C01 | PAGE |
| C02 | none |
| C03 | none |
| C12 | none |
| S01 | none |
| S02 | none |
| S05 | none |
Only CSP and C01 are implemented in ACUCOBOL-GT in the IBM DOS/VS COBOL compatibility mode. The others depend on particular hardware features and cannot be ported. They will generate error messages.