6.1.6.11 "COBOL Language Reference" IBM Library Server

6.1.6.11 Abbreviated Combined Relation Conditions

When relation-conditions are written consecutively, any relation-condition after the first can be abbreviated in one of two ways:

Omission of the subject
Omission of the subject and relational operator.


    ___ Format _____________________________________________________________ 
   |                                                                        |
   | >>__relation-condition_______________________________________________> |
   |                                                                        |
   |    <___________________________________________________                |
   | >____ _AND_ __ _____ __ _____________________ __object_|____________>< |
   |      |_OR__|  |_NOT_|  |_relational-operator_|                         |
   |                                                                        |
   |________________________________________________________________________|

In any consecutive sequence of relation-conditions, both forms of abbreviation can be specified. The abbreviated condition is evaluated as if:

The last stated subject is the missing subject.
The last stated relational operator is the missing relational operator.

The resulting combined condition must comply with the rules for element sequence in combined conditions, as shown in Table 28 in topic 6.1.6.10.

If the word immediately following NOT is GREATER THAN, >, LESS THAN, <, EQUAL TO, and =, then the NOT participates as part of the relational operator.

NOT in any other position is considered a logical operator (and thus results in a negated relation-condition).

Subtopics:

6.1.6.11.1 Using Parentheses

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6.1.6.11 Abbreviated Combined Relation Conditions

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