Firstly, thank you for trying to improve our tooling!

It took me some time to find, for others: 
https://github.com/BalazsLengyel/rfcstrip 
<https://github.com/BalazsLengyel/rfcstrip>

Running `rfcstrip -a` throws errors on MacOS.  My workaround fix was to ` brew 
install grep` and 's/grep/ggrep/' on line 483.

All The extracted files (including the two that are NOT folded) contain a ‘^@‘ 
character at the EOF.   This must be something introduced by `rfcstrip` because 
`rfcfold` does a simple file-level copy when unfolding isn't needed.

Kent // contributor


> On Mar 26, 2020, at 5:45 PM, Balázs Lengyel 
> <[email protected]> wrote:
> 
> Hello,
> I created an update to rfcstrip in Github.
> 
> Revision 1.1balazs - 2020-03-26
> added -a option. If it is specified, the file must be an XML2RFC
> XML file.
> All artworks will be extracted from it if they carry a name attribute.
> Artwork unfolding will also be executed.
> If the artwork contains the , <CODE BEGIN/END> markers
> they are removed.
> 
> Regards Balazs
> 
> -----Original Message-----
> From: Balázs Lengyel <[email protected]> 
> Sent: 2020. március 26., csütörtök 11:55
> To: Kent Watsen <[email protected]>; Balázs Lengyel 
> <[email protected]>
> Cc: [email protected]
> Subject: RE: [netmod] Where can I use <CODE BEGINS> <CODE ENDS> ?
> 
> Hello Kent,
> OK, as you are strongly opposed to it, I will remove <CODE BEGINS> <CODE 
> ENDS> in the next version.
> That said, I do not really agree with you. If interested see, below.
> Regards Balazs
> 
> -----Original Message-----
> From: netmod <[email protected]> On Behalf Of Kent Watsen
> Sent: 2020. március 25., szerda 18:25
> To: Balázs Lengyel <[email protected]>
> Cc: [email protected]
> Subject: Re: [netmod] Where can I use <CODE BEGINS> <CODE ENDS> ?
> 
> Balazs,
> 
> While possible to use the markers for instance examples...
> 
>  - they’ve never been used before, AFIAK  (historical context)
> BALAZS: S0 I am a revolutionary :-)  
> As I understand validation of examples have always been an issue, so making 
> that more simple by automating extraction would be a step in the good 
> direction.
>  - they're unneeded, as examples don’t contain copyright (per Lada’s comment)
> BALAZS: I agree that copyright is a non-issue for these examples. However 
> <CODE BEGINS> is needed for another reason: easy extraction, which would make 
> checking the data simpler.
>  - they're disallowed by RFC 8407 for example modules (per Benoit comment)
> BALAZS: strictly speaking that is about YANG examples not instance data 
> examples. I also don't know/understand the reasoning behind it. A separate 
> example tag would be nice, but we don't have one.
>  - as a contributor, I don’t wish to birth a new convention of using the 
> markers for examples.  
> 
> In order to support programmatic extraction of examples from drafts, please 
> just set the “name” attribute on the <sourcecode> or <artwork> element in the 
> XML draft. 
> BALAZS: As far as I understand sourcecode is only available in XML2RFC v3.  
> Name is not handled by rfcstrip or xym. (I don't have time to update the 
> tools right now.) It would be nice to have an update to rfcstrip that checks 
> every <artwork> and if it has a name attribute, it extracts the content into 
> a file called "name".
> 
> 
> 2.48.2.  "name" Attribute
> 
>   A filename suitable for the contents (such as for extraction to a
>   local file).  This attribute can be helpful for other kinds of tools
>   (such as automated syntax checkers, which work by extracting the
>   source code).  Note that the "name" attribute does not need to be
>   unique for <artwork> elements in a document.  If multiple
>   <sourcecode> elements have the same "name" attribute, a formatter
>   might assume that the elements are all fragments of a single file,
>   and such a formatter can collect those fragments for later
>   processing.
> 
> 
> Kent
> 
> 
> 
> 
>> On Mar 24, 2020, at 11:33 AM, Balázs Lengyel 
>> <[email protected]> wrote:
>> 
>> Hello,
>> A reply from the rfc-editor on <CODE BEGINS>. It seems it is OK.
>> Regards Balazs
>> 
>> -----Original Message-----
>> From: Alice Russo <[email protected]> 
>> Sent: 2020. március 24., kedd 16:00
>> To: Balázs Lengyel <[email protected]>
>> Cc: RFC Editor <[email protected]>
>> Subject: Re: Where can I use <CODE BEGINS> <CODE ENDS> ?
>> 
>> Greetings,
>> 
>> Please see below.
>> 
>>> On Mar 21, 2020, at 8:30 AM, Balázs Lengyel <[email protected]> 
>>> wrote:
>>> 
>>> Hello,
>>> Sorry if I am sending this question to the wrong person. 
>>> We have a discussion in the NETMOD workgroup about when is it 
>>> appropriate/allowed to use the <CODE BEGINS> <CODE ENDS> markings in drafts 
>>> and RFCs.
>>> We regularly use it to bracket the YANG modules defined. 
>>> e.g.    <CODE BEGINS> file "[email protected]" 
>>> 
>> 
>> Just FYI, if you are using the new XML vocabulary [1], the markers can be 
>> created automatically by using markers="true"
>> -- for example --
>> <sourcecode name="[email protected]" type="yang" 
>> markers="true">
>> 
>>> However is it allowed to use it to bracket XML or json examples in 
>>> drafts/rfcs? 
>>> e.g.    <CODE BEGINS> file [email protected]
>> 
>> Yes, it is allowed. The markers <CODE BEGINS> and <CODE ENDS> are mentioned 
>> in the Trust Legal Provisions [2].
>> 
>> [1] 
>> https://protect2.fireeye.com/v1/url?k=50261255-0cacc750-502652ce-861010bc36ff-8b3716f9fa495535&q=1&e=11f6fa43-0168-4d1f-8f5d-bffd46fff0d3&u=https%3A%2F%2Fwww.rfc-editor.org%2Fmaterials%2FFAQ-xml2rfcv3.html
>> [2] https://trustee.ietf.org/license-info/IETF-TLP-5.htm (item 4d)
>> 
>> Thank you.
>> RFC Editor/ar
>> 
>>> 
>>> It is very handy that the rfcstrip tool can extract the CODE sections from 
>>> a draft which facilitates checking these by external tools like yanglint. 
>>> The checking is needed both for the YANG modules and the examples.
>>> If you as an rfc-editor could give guidance on the issue it would be 
>>> appreciated. I attached a planned draft.
>>> Best regards Balazs Lengyel 
>>> 
>>> -- 
>>> Balazs Lengyel                    Senior Specialist                       
>>> Ericsson Hungary Ltd. 
>>> Mobile: +36-70-330-7909              email: [email protected]
>>> 
>>> <draft-ietf-netmod-yang-instance-file-format-11.txt>
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