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Re: [netmod] rfc6991bis: yang:xpath1.0

Andy Bierman <andy@yumaworks.com> Sat, 18 July 2020 16:00 UTC

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In-Reply-To: <86a37242-a85d-f4a6-1db6-c79d861f76fb@lightside-instruments.com>
From: Andy Bierman <andy@yumaworks.com>
Date: Sat, 18 Jul 2020 09:00:42 -0700
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To: Vladimir Vassilev <vladimir@lightside-instruments.com>
Cc: "netmod@ietf.org" <netmod@ietf.org>
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Subject: Re: [netmod] rfc6991bis: yang:xpath1.0
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On Sat, Jul 18, 2020 at 8:42 AM Vladimir Vassilev <
vladimir@lightside-instruments.com> wrote:

> On 17/07/2020 21.14, Juergen Schoenwaelder wrote:
>
> > - How do we deal with xpath expressions in other encodings
> > such as JSON. Do we assume an xpath context populated with
> > module names such that module names can be used to qualify
> > path expressions. This may need discussion and/or a new
> > definition.
> >
> > - This interacts with the definition of node-instance-identifier.
> >
> > - Options: (i) Leave this definition as it is. (ii) Detail how this
> > type work with encodings that use module names instead of prefixes
> > to qualify names.
> >
> > - Proposal: ?
>
>
> How about leaving the xpath1.0 type definition as it is and specifying a
> canonical form for the node-instance-identifier where namespace prefixes
> must be module names.
>
>
Since (i) is the only BC option why is (ii) even being considered?
Of course a new type name is needed to change the XPath syntax
to something that is not backward-compatible.


> > /js
> >
>

Andy


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