NetRexx Pipelines (an implementation in NetRexx of IBM's CMS/Hartmann Pipelines). This repository contains a collection of experiments and tests.
Taken from the preamble of the NetRexx Pipelines Guide and Reference
A Pipeline, or Hartmann Pipeline, is a concept that extends and improves pipes as they are known from Unix and other operating systems. The name pipe indicates an interprocess communication mechanism, as well as the programming paradigm it has introduced. Compared to Unix pipes, Hartmann Pipelines offer multiple input- and output streams, more complex pipe topologies, and a lot more. Pipelines were first implemented on VM/CMS, one of IBM’s mainframe operating systems. This version was later adapted to run under MUSIC/SP and TSO/MVS (now z/OS) and has been part of several product configurations. Pipelines are widely used by VM users, in a symbiotic relationship with REXX, the interpreted language that also has its origins on this platform.
Pipes for NetRexx is the implementation of Pipelines for the Java Virtual machine. It is written in NetRexx and pipes and stages can be defined using this language. It can run on every platform that has a JVM (Java Virtual Machine) installed. This portable version of Pipelines was started by Ed Tomlinson in 1997 under the name of njPipes, when NetRexx was still very new, and was open sourced in 2011, soon after the NetRexx translator itself. The included stages have always been open source. It was integrated into the NetRexx translator in 2014 and first released with version 3.04.
In version 3.08, there are important improvements that enable pipelines to be run from the command line, and from the NetRexx REPL program nrws, the NetRexx Workspace. The pipes compiler has been renamed pipc, while the pipes runner component keeps using the name pipe.