Xerox 6180N Using LCDS Print Description Language - Page 210
Sample BSELECT and BDELETE command, usage, Example 2
UPC - 095205425307
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Using logical processing The contents of the first byte of each tape block (offset=0, length=1) is examined for the character constant 'P'. When a 'P' is detected, the entire block is selected (BSELECT) for printing. When the first byte of any block does not contain a 'P', that block is bypassed and not printed. In this example, only block 1 is printed. The following figure shows a sample of how BSELECT and BDELETE commands are used. Figure 3-2. Sample BSELECT and BDELETE command usage Example 2 The following example shows a BDELETE command that will delete from the tape any blocks that contain $$11: T1: TABLE CONSTANT=('$$11'); C1: CRITERIA CONSTANT=(4,4,EQ,T1); BDELETE TEST=C1; 3-30 Using LCDS Print Description Language
Using logical processing
3-30
Using LCDS Print Description Language
The contents of the first byte of each tape block (offset=0,
length=1) is examined for the character constant 'P'. When a 'P'
is detected, the entire block is selected (BSELECT) for printing.
When the first byte of any block does not contain a 'P', that block
is bypassed and not printed. In this example, only block 1 is
printed.
The following figure shows a sample of how BSELECT and
BDELETE commands are used.
Figure 3-2. Sample BSELECT and BDELETE command
usage
Example 2
The following example shows a BDELETE command that will
delete from the tape any blocks that contain $$11:
T1: TABLE
CONSTANT=('$$11');
C1: CRITERIA CONSTANT=(4,4,EQ,T1);
BDELETE
TEST=C1;