[netrexx-pipelines] nrc is choking on variable substitution in my pipeline

[J L. T. <jlt...@ma...>]

	I'm trying to use a simple pipeline in a NetRexx routine, but nrc doesn't like my
variable substitution:

~/bin/NetRexx
| $ echo $JAVA_HOME
|
| @05:27:11,leslie@pinto rc=0
| ~/bin/NetRexx
| $ echo $CLASSPATH
| .:/home/leslie/bin/NetRexx/:/usr/java/jdk-17:/usr/local/NetRexx-4.01-GA/lib/NetRexxF.jar
| @05:27:21,leslie@pinto rc=0
| ~/bin/NetRexx
| $ cat newTree.nrx
| -- .-----------------------------------------------------------------------. --
| -- |                               Change Log                              | --
| -- |Version    Date      Description                                       | --
| -- |------- ---------- ----------------------------------------------------| --
| -- |                                                                       | --
| -- |1.0     2021-10-27 Creation                                            | --
| -- '-----------------------------------------------------------------------' --
| import org.netrexx.njpipes.pipes.
|   trace off
|   parse arg treeBase
|   treePipe(Rexx(treeBase))
| exit 0
| -------------------------------------------------------------------------------
| method treePipe(treeArguments)
|   pipe (fixTree)
|          command /usr/bin/tree {treeArguments}
| | tree:  split at /[/
| | merge: specs select 1 1-* next
|                select 0 1-* next
|                select 2 1-* next
| |        console
| ? tree:  split at /]/ | attrs:
| ? attrs:              | merge:
| --===========================================================================--
| @05:27:31,leslie@pinto rc=0
| ~/bin/NetRexx
| $ nrc newTree.nrx
| NetRexx portable processor 4.01-GA build 573-20210320-2000
| Copyright (c) RexxLA, 2011,2021.   All rights reserved.
| Parts Copyright (c) IBM Corporation, 1995,2008.
| Program newTree.nrx
|  16 +++          command /usr/bin/tree {treeArguments}
|     +++                                ^
|     +++ Error: Unexpected character found in source: '{' (hexadecimal encoding: 007B)
| Compilation of 'newTree.nrx' failed [one error]
| @05:27:40,leslie@pinto rc=2

	I can't see what I'm doing differently to what is described in "How to use a pipe in a
NetRexx program", page 24 of "Pipelines Guide and Reference"; I tried first putting the
pipeline into the implicit main() method, then in a separate method; neither worked, so I
looked through the examples in the NetRexx package and noticed the import statement, but
adding that didn't help either.
	What am I doing wrong?

Leslie
--
Distribution: openSUSE Leap 15.3 x86_64
java version "17" 2021-09-14 LTS
Java(TM) SE Runtime Environment (build 17+35-LTS-2724)
Java HotSpot(TM) 64-Bit Server VM (build 17+35-LTS-2724, mixed mode, sharing)
NetRexx portable processor 4.01-GA build 573-20210320-2000