Re: analysis of YANG vs. RELAX NG

"Tim Bray" <tbray@textuality.com> Sun, 02 December 2007 20:42 UTC

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Date: Sun, 2 Dec 2007 12:42:07 -0800
From: "Tim Bray" <tbray@textuality.com>
To: "Julian Reschke" <julian.reschke@gmx.de>
Subject: Re: analysis of YANG vs. RELAX NG
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On Dec 1, 2007 1:19 AM, Julian Reschke <julian.reschke@gmx.de> wrote:

> Well, that depends on the schema language. RelaxNG allows to define
> languages that use the must-ignore rule for new elements.

I've been staying off this thread because I don't understand what a
NETCONF is or what you'd do with one.  But Julian's point is massively
important.  If you're going to design your own modeling language, you
need to spend a *lot* of time thinking about the extensibility model.
It's really easy to get wrong.  -Tim