Xerox 701P21091 manual Test parameter options and definitions

Using logical processing

Options

	Table 3-21. TEST parameter options and definitions
Option	Definition
testexp	test expression.
	Defines a test expression for a block that will be selected for printing
	(BSELECT) or deleted (BDELETE). (Refer to “Coding a test expression,”
	earlier in this chapter, for the format and syntax of a testexp.
Default		No default
		BSELECT and BDELETE commands: points to note

Note the following when using the BSELECT and BDELETE commands:

•It is important to note that block selection or block deletion is performed before the extraction of the records from the block. If a block is deleted from or not selected for printing, none of the records contained within that block are processed or are available for any other logical processing functions.

•If a block does not match the same format as the normal blocks, it can be deleted and thus not cause a processing error. For example, a control block in a fixed blocked file may cause a processing error unless it is first deleted.

•When defining TABLE CONSTANT or CHANGE parameters, specify offsets to subfields of a block in bytes relative to zero, from the start of the block to the beginning of the subfield.

Examples

This section shows examples of use of the BSELECT and BDELETE commands.

Example 1

The following commands illustrate the use of BSELECT to process interspersed reports (refer to the following figure) on a block basis.

T1: TABLE CONSTANT=('P');

C1: CRITERIA CONSTANT=(0,1,EQ,T1);

BSELECT TEST=(C1);

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