Re: [netrexx-pipelines] New proposed filter stage: REGEX

[René J. <rvj...@xs...>]

Hi Jeff,

I think that is very interesting and very befitting to the platform.

I’ll give it a spin as soon as I can.

best regards,

René.


> On 28 Jun 2020, at 21:02, Jeff Hennick <Je...@Je...> wrote:
> 
> I am proposing a new stage that draws on NetRexx's Java heritage:  REGEX  (alternative name: GREP).  It is a simple filter stage like LOCATE, but uses regular expressions.  This gives it a much richer (as well as less comprehensible) set of selectors.
> 
> I have submitted it to origin master for 3.09, but, René, if you object to mixing in regular expressions, I'd withdraw it.
> 
> All, comments and suggestions are very much welcomed.
> 
> /** regex
> 
> >>--REGEX--+--------------------------+--regex_string-(1)---><
>            +-(--| options_string |--)-+
> 
> options_string:
> |--+---------+--|
>    +-NUMBERS-+ (2)
> 
> 
>  Records matching the RegEx are put out on primary output
>  Records not matching are put out on secondary, if connected, or discarded.
> 
> (1) string is a Java RegEx expresion. null string passes all records.
> (2) lines are prefaced with line number, 10 characters, right justified
> 
> [Possible future options: BEFORE and AFTER, etc., to give context, ala GREP.]
> 
> */
> 
> /*
>  20/ 6/28 Jeff Hennick
> */
> 
> Jeff
> 
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