Re: [netrexx-pipelines] Stage argument of "?" Bug or Feature?

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

	Inside a pipeline, the ? is the default separator for multi-stage streams.  
It can be overridden with the end option.

Leslie

On 2023-02-26 11:24:21 Jeff Hennick wrote:
> In building a new HELP stage, and wanting to handle all the stage names and
> their synonyms, I have run into a problem with an argument of just the
> question mark: "?", which is a synonym for HELP in CMS. Here are the first
> few lines traced.  First with the character > which is processed all
> right.  But with the character ? , it never gets through.
>
> PS C:\Users\Jeff\Documents\nr\netrexx-code\examples\pipes> pipe "ahelp >"
>      --- ahelp.nrx [Thread-1,njPipes]
>   25 *=* method run()
>   26 *=*   data = Rexx ""
>
>      >v> data ""
>
>   28 *=*   parse arg() stage_to_help
>
>      >v> stage_to_help ">"
>
> PS C:\Users\Jeff\Documents\nr\netrexx-code\examples\pipes> pipe "ahelp ?"
>      --- ahelp.nrx [Thread-1,njPipes]
>   25 *=* method run()
>   26 *=*   data = Rexx ""
>
>      >v> data ""
>
>   28 *=*   parse arg() stage_to_help
>
>      >v> stage_to_help ""
>
> Some exploration with raw NetRexx shows the Shell does not like passing >,
> but all is right with?: PS
> C:\Users\Jeff\Documents\nr\netrexx-code\examples\pipes> type toast.nrx /*
> This wishes you the best of health. */
> class toast
>  method main(argwords=String[]) static
>  arg=Rexx(argwords)
>  say 'Cheers!' arg
>
> PS C:\Users\Jeff\Documents\nr\netrexx-code\examples\pipes> java toast
> Cheers!
> PS C:\Users\Jeff\Documents\nr\netrexx-code\examples\pipes> java toast xyz
> Cheers! xyz
> PS C:\Users\Jeff\Documents\nr\netrexx-code\examples\pipes> java toast >
> At line:1 char:13
> + java toast >
> +             ~
> Missing file specification after redirection operator.
>     + CategoryInfo          : ParserError: (:) [],
> ParentContainsErrorRecordEx ception
>     + FullyQualifiedErrorId : MissingFileSpecification
>
> PS C:\Users\Jeff\Documents\nr\netrexx-code\examples\pipes> java toast ?
> Cheers! ?
>
> So, NetRexx alone is not "eating" the "?" parameter, it must be Pipelines
> that is. Is this a feature of Pipelines that I have missed, or a bug?
> Anyone's help would be appreciated.
> Jeff Hennick