Xerox 6180N Using LCDS Print Description Language - Page 190

Using logical processing

3-10

Using LCDS Print Description Language

Constant mode

In Constant mode (that is, when the CRITERIA CONSTANT

parameter has been specified), you must specify the location,

length, and contents of a fixed field within a record. Each record

is examined at the specified location to determine if the constant

is present (the identifier

tabid

defines the table containing the

constant). If the specified constant is present and equal (EQ), the

CRITERIA command is true; if the constant is present and not

equal (NE), the command is false.

Change mode

In Change mode (that is, when the CRITERIA CHANGE

parameter has been specified), you must specify the length and

location of a control field in each record. When the content of the

control field of one record differs from the content of the control

field of the previous record, the CRITERIA command is true.

Value mode

In Value mode (that is, when the CRITERIA VALUE parameter

has been specified), you compare two numerical values, testing

if they are equal (EQ) or not equal (NE), if one value is greater

than (GT) or less than (LT) the other value, or if one value is

greater than or equal to (GE) or less than or equal to (LE) the

other value. If the test on the two values is satisfied, the

CRITERIA command is true; if not, the command is false.

Using the CRITERIA command

To complete the description of the entire test for a logical

function, the TEST parameter of a logical processing command

must specify either one or two CRITERIA commands.

Specifying one

CRITERIA

command

If only one test is to be performed to determine the value of a

particular logical processing function, the form of the TEST

parameter is as follows:

TEST = criid;

The

criid

is the identifier for the particular CRITERIA command.

Parentheses in this format are optional.

Specifying two

CRITERIA

commands

If two CRITERIA commands are needed to determine the true or

false value for a logical processing function, they may be linked

by either AND or OR. The formats of these TEST parameters

may be as follows:

TEST = (criid1, AND, criid2);

or

TEST = (criid1, OR, criid2);

Section	Page
Language	1
Print Server version 6.0	1
June 2007	1
701P47156	1
Xerox FreeFlow® Print Server	1
Using LCDS	1
Print Description	1
Table of contents	3
Laser safety xvii	3
Introduction xxiii	3
1. PDL principles and procedures 1-1	3
2. Specifying input parameters 2-1	4
3. Using logical processing 3-1	7
4. Specifying print format parameters 4-1	9
5. Using Dynamic Job Descriptor Entries (DJDEs) 5-1	11
6. Using PDL commands for graphics 6-1	14
A. PDL command and DJDE summary A-1	14
B. PDL command quick reference B-1	14
C. Character code assignments C-1	14
D. Offline specifications D-1	14
Glossary Glossary-1	15
Symbols	495
Numerics	495
A	495
B	495
C	496
D	497
E	497
F	498
G	498
H	498
I	499
J	499
K	500
L	500
M	500
N	501
O	501
P	502
R	502
S	503
T	504
U	504
V	504
W	505
X	505

Xerox 6180N Using LCDS Print Description Language - Page 190

Constant mode, Change mode, Value mode, Using the CRITERIA command, Specifying one, CRITERIA,

Page 190 highlights