Radio Shack TRS-80 Model 4 - Page 329

Error Conditions
An IIINCLUDE macro CANNOT be the last line in a JCL file. If it is,
an "End of File Encountered" error occurs, and the JCL aborts.
Examples
This example shows two JCL files and the results of the compile
phase. The two JCL files are:
• TEST1/JCL
• COfTlfTlent line 1
IIINCLUDE TE5T2
•
COfTlfTlent line 2
IID( IT
• TEST2/JCL
• This comment is included
If you issue the command
DO TEST 1 (ENTER)
the following SYSTEM/JCL file is produced:
• TEST 11 JCL
•
COfTlfTlent line
• TE5T2/JCL
• This comment is included
COfTlfTlent line 2
IIE)<IT
The compiling starts with the file named in the DO command line. As
soon as the IIINCLUDE
is reached, all lines in the second JCL file are
processed, and then the compiling returns
to the rest of the original
file.
There is no limit to the number of non-nested IIINCLUDE macros you
can use, other than having enough disk space for the resulting
SYSTEM/JCL file.
Using JCL Labels
The LABEL feature of JCL allows you to permanently merge together
many small JCL procedures into one large file, and then access those
procedures individually. This saves disk space and directory entry
slots.
Examples
• TEST/JCL label example
@FIRST
• this is the first procedure
Ilexit
@SECOND
• this is the next procedure
@THIRD
• this is the last procedure
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