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Xerox 4112-4127 Enterprise Printing System-192 User Manual

Page 120

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Specifying input parameters

2-12

Using LCDS Print Description Language

BLOCK command

The BLOCK command defines block length characteristics and
recording modes for offline data sources.

BLOCK command parameters

The following table summarizes the BLOCK command
parameters.

The following sections describe the syntax of the BLOCK
command parameters and explain their options.

Table 2-4. Summary of BLOCK command parameters

Parameter

Specifies

Offline

Online

DJDE

BLOCK ADJUST

Specifies the adjustment value that is added to or
subtracted from the content of the block length
field.

Y

N

N

BLOCK CONSTANT

Specifies that the block delimiter constant and all
subsequent data are ignored until the end of the
block.

Y

N

N

BLOCK FORMAT

Specifies the length field recording mode.

Y

N

N

BLOCK LENGTH

Specifies the maximum block size.

Y

N

N

BLOCK LMULT

Specifies a multiplication factor to determine
block length.

Y

N

N

BLOCK LTHFLD

Specifies the length of field that contains the
block length specification.

Y

N

N

BLOCK OFFSET

Specifies the location of the block length field.

Y

N

N

BLOCK
POSTAMBLE

Specifies the length of extraneous data at the
end of the block.

Y

N

N

BLOCK PREAMBLE

Specifies the length of the operating system
portion of block

Y

N

N

BLOCK ZERO

Specifies that the criterion test for the end of the
block is 0.

Y

N

N