Guardian Programming Reference Summary for pTAL and TAL
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Guardian Programming Reference Summary for pTAL and TAL—522631-001
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Change Bar Notation
!o. The !o notation following a token or field name indicates that the token or field is 
optional. For example:
ZSPI-TKN-MANAGER token-type ZSPI-TYP-FNAME32. !o
Change Bar Notation
Change bars are used to indicate substantive differences between this edition of the 
manual and the preceding edition. Change bars are vertical rules placed in the right 
margin of changed portions of text, figures, tables, examples, and so on. Change bars 
highlight new or revised information. For example: 
The message types specified in the REPORT clause are different in the COBOL85 
environment and the Common Run-Time Environment (CRE).
The CRE has many new message types and some new message type codes for old 
message types. In the CRE, the message type SYSTEM includes all messages 
except LOGICAL-CLOSE and LOGICAL-OPEN.










