埋め込みの説明
@1@ : REVERSED．
@2@ : ANSI85．
例題
[P2727.cob] 000001 @OPTIONS CONF(OBS) 000002 IDENTIFICATION DIVISION. 000003 PROGRAM-ID. P2727. 000004 ENVIRONMENT DIVISION. 000005 INPUT-OUTPUT SECTION. 000006 FILE-CONTROL. 000007 SELECT SQFILE1 ASSIGN TO SYS001. 000008 I-O-CONTROL. 000009 DATA DIVISION. 000010 FILE SECTION. 000011 FD SQFILE1. 000012 01 SQF1REC. 000013 02 PIC X(80). 000014 WORKING-STORAGE SECTION. 000015 PROCEDURE DIVISION. 000016 OPEN INPUT SQFILE1 REVERSED. 000017 END PROGRAM P2727.
P2727.cob 16: JMN2727I-I (OBS)REVERSED指定は，ANSI85 COBOLの廃要素です．
詳細な説明
翻訳オプションCONF(OBS)を指定すると，廃要素である言語仕様および機能が指摘されます．
