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RE: Application of Postel's Law to XML (as Re: Trust andcontro

• From: "Costello, Roger L." <costello@mitre.org>
• To: "xml-dev@lists.xml.org" <xml-dev@lists.xml.org>
• Date: Mon, 4 Feb 2013 17:29:24 +0000

Hello Amy,

> So far as I can see, XML's insistence on 
> well-formedness is a direct contradiction 
> to Postel's Law. It mandates that receivers 
> be rigorous.

As I read the history of RSS and RSS processors, it appears that there was much argument about whether well-formedness was necessary. Tim Bray argued passionately in favor of requiring that RSS be well-formed: 

http://www.tbray.org/ongoing/When/200x/2004/01/11/PostelPilgrim

In any case, I am trying to reserve judgment on goodness or badness of the ways in my list. Do you know of other ways beside those in my list for being conservative in what you generate and liberal in what you accept?

Thanks for the feedback.

/Roger

-----Original Message-----
From: Amelia A Lewis [mailto:amyzing@talsever.com] 
Sent: Monday, February 04, 2013 12:10 PM
To: Costello, Roger L.
Cc: xml-dev@lists.xml.org
Subject: Re:  Application of Postel's Law to XML (as Re: Trust and control )

On Mon, 4 Feb 2013 16:57:33 +0000, Costello, Roger L. wrote:
> I want to fully understand what it means to apply Postel's Law to XML.

So far as I can see, XML's insistence on well-formedness is a direct 
contradiction to Postel's Law. It mandates that receivers be rigorous. 
Full stop.

Amy!

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• Follow-Ups:
  • RE: Application of Postel's Law to XML (as Re: Trust and control )
    • From: "Jim Tivy" <jimt@bluestream.com>

• References:
  • Application of Postel's Law to XML (as Re: Trust and control )
    • From: "Costello, Roger L." <costello@mitre.org>
  • Re: Application of Postel's Law to XML (as Re: Trust andcontrol )
    • From: Amelia A Lewis <amyzing@talsever.com>