Re: [xml-dev] Open XML Markup Compatibility

["David Lyon" <david.lyon@preisshare.net>]

----- Original Message -----
From: "Fraser Goffin" <goffinf@hotmail.com>
To: <xml-dev@lists.xml.org>
Sent: Tuesday, September 12, 2006 7:29 PM
Subject: [xml-dev] Open XML Markup Compatibility


> A while back I posted a question about use of the Must Ignore Unknown
> (retain/discard) pattern described (primarily) by David Orchard as an
> approach to processing XML instances containing allowable content that MAY
> be ignored by a receiver if that content is 'not understood' (see below
for
> original post).

Whoever did this in 'may-ignore' stuff in the first place must have skipped
communications 101.

Firstly, if it may be ignored, then why send it in the first place?

Secondly, any part of anything *may* be ignored, but it is up to the
receiver to make that decision.

When you get told by the communicator to ignore this and not that, you tend
to think about just ignoring the whole jolly lot... because the message
becomes to conveluted, confusing and too much effort to understand.

> My original post had no responses but I'm not sure if that was because
> no-one is really all that bothered about this subject (for us it has some
> potential in our versioning strategy)  ?

Go back and check the setting of the <may_be_ignored_flag = 0>

Regards

David