IBM Tivoli NetView for z/OS Programming: Pipes - IBM notice

Building Large PIPE Commands: INTERPRT
The INTERPRT stage enables the user to build and run pipeline stages from input
command data. The commands are processed by the INTERPRT stage as an inner
pipeline in a PIPE-within-a-PIPE structure. In some command procedure
environments, commands are limited to 240 characters. The INTERPRT stage
allows pipeline specifications to exceed these limitations.
Using the INTERPRT Stage
Example: Building a Pipeline with INTERPRT
This example shows how to use the INTERPRT stage to build a pipeline
specification from stage specifications read into the pipeline through the STEM
stage.
The example is shown within a NetView command list, named PIPEEX10:
PIPEEX10 CLIST
&CONTROL ERR
*
*******************************************************************
** THIS CLIST USES THE PIPE COMMAND AND INTERPRT STAGE TO PROCESS**
** A PIPELINE. **
*******************************************************************
*
*******************************************************************
** CREATE VARIABLES FOR EACH STAGE TO BE INTERPRETED **
*******************************************************************
&STAGE1 = ’NETVIEW LIST KEY=ALL’
&STAGE2 = ’SEPARATE’
&STAGE3 = ’TAKE FIRST 10’
&STAGE4 = ’COLLECT’
&STAGE5 = ’CONSOLE’
&STAGE0 = 5
*******************************************************************
** **
** EXECUTE PIPE COMMAND, PLACE RESULTS IN A SAFE NAMED MYKEYS **
*******************************************************************
PIPE STEM STAGE +
| COLLECT +
| NETVIEW PIPE INTERPRT * +
| SAFE MYKEYS +
| CONSOLE
*******************************************************************
** WRITE RETURN CODE INFORMATION TO TERMINAL AND EXIT CLIST **
*******************************************************************
&WRITE RETURN CODE = &RETCODE
&EXIT
Output from PIPEEX10 follows:
NetView Pipelines Device Drivers
Chapter 3. NetView Pipelines Device Drivers 301