PRINT DESCRIPTION LANGUAGE (PDL)2-16 XEROX DOCUPRINT 180 LPS PDL REFERENCECreating separate files for grouping PDL commandsIf you have multiple commands of the same type, such as CMEs andPDEs, you may want to create separate files for them to group likespecifications together and to make your JSLs shorter and moreefficient. You can create these types of command files by simplylisting them as you would in a JSL and complete the list with an END;command before specifying a JSL’s JDL coding identifier instead ofafter it.Files containing groups of PDE and CME commands may be createdas system or editor files. Because you use the editor to create andmodify your JSLs, it may be more efficient for you to create thesecommand files in the editor.Refer to yourDocuPrint 180 LPS Operations Reference for detailedinformation on using system and editor command files.Hierarchy of replacementThe system default values shown in appendix A are the morecommonly used values in job processing; they can be thought of asa basic job descriptor entry (JDE). PDL commands need coding foronly those parameters that must be changed to process your uniqueprint jobs. This coding process may be further specified by placingcommands common to more than one job in the catalog commandlevel. When these coding features are properly implemented, it ispossible for the same command to be used in more than one job orJDE command level within a library. The PDL processor evaluatesuser coded commands and applies the highest order, error-freedefinition to the job for printing. This process, termed the hierarchy ofreplacement, is discussed in the subsequent paragraphs andillustrated in figure 2-6.Hierarchy within a job descriptor library (JDL)Figure 2-4 shows a coded JDL that contains four jobs or JDEs. Acommand to specify the recording code (CODE parameter of theVOLUME command) of the input data appears in three places:• According to the system command level (or JDL) command set,the default recording code of the input data is ASCII (VOLUMECODE=ASCII).• According to the catalog command level, the recording code ofthe input data is EBCDIC (VOLUME CODE=EBCDIC).• According to the job or JDE command levels, for jobs one andthree, the recording code of the input data is Printable EBCDIC(PEBCDIC). The PDL command: VOLUME CODE=PEBCDICoverrides both catalog and system (or JDL) command leveldefinitions.For job descriptor entry 2:JOB;, the recording code of the input datais EBCDIC, as specified in the CATPOW catalog command. In4:JOB;, the recording code of the input data is EBCDIC because theJOB command’s INCLUDE parameter specifies the CATGRP
