PRINT DESCRIPTION LANGUAGE (PDL)2-12 XEROX DOCUPRINT 180 LPS PDL REFERENCEID levelThe ID level has commands that require identifiers so that they canbe referenced by other commands in lower command levels. Forexample, the ID level contains one or more VFU commands, asshown in table 2-2. As with the other command levels any PDLcommand can be specified at the ID level. The ID level must bepreceded by JDL coding, which names the JSL. For example:XSML: JDL;VFU1: VFU ASSIGN=(1,1),TOF=1,BOF=66;In this example, XSML:JDL is the name of the complete JDL and theVFU command is in the ID level.System or JDL levelA system or JDL command set establishes installation-dependentrequirements and default values for job descriptor entries. At thesystem level, JDL may be used interchangeably with SYSTEM. Atthe system level, commands are specified which apply to all jobdescriptor entries (JDEs) identified within a job descriptor library(JSL). Each SYSTEM command results in the creation of a JDL whencompiled.The SYSTEM command has the form:jdl-name {SYSTEM JDL;}jdl-name is a 1 to 6 character alphanumeric identifier specifying thename of the JDL to be created. It must contain at least one alphabeticcharacter.For example:SAMPL: SYSTEM;This command identifies the start of a SYSTEM command and thebeginning of a JDL. The jdl-name SAMPL corresponds to the nameof the JDL to be used when printing a job. When DFAULT is codedfor the jdl-name, the specification of a JDL parameter option in theSTART command is not necessary.Catalog levelThe catalog level allows the coding of commands common to severalJDEs. A catalog can then be referenced in an INCLUDE command ineach JDE. A catalog command level is identified by the CATALOGcommand and ends with the appearance of another CATALOGcommand or a JOB command. CATALOG commands may containthe same commands which appear in the JOB command.The CATALOG command has the form:cat-name: CATALOG;cat-name is a 1 to 6 character alphanumeric identifier of which atleast one character must be alphabetic. The cat-name is referencedby JDEs after the CATALOG command set has been defined.For example:POWER:CATALOG;In this command, POWER is the catalog level identifier to be used inthe INCLUDE parameter of a JOB command.
