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- From: Bob Kline <bkline@rksystems.com>
- To: Gareth Harper <Gareth.Harper@sportal.net>
- Date: Tue, 19 Dec 2000 08:52:49 -0500 (EST)
On Tue, 19 Dec 2000, Gareth Harper wrote:
> If, for example I have the following piece of xml
>
> <parent>
> <child attribute="blah1"/>
> <child attribute="blah2"/>
> <child attribute="blah3"/>
> </parent>
>
> is it written (in the XML spec) anywhere that the parser must return those
> child nodes in the order that they have been given. I know it sounds right
> that it should, but I need to know if this is in the spec (this is for a
> boolean evaluation system I'm writing in XML / PERL and I need to know if
> for safety's sake I should put some ordering information in my children
> (variables), or if this is built into this spec)
>
Look at http://www.w3.org/TR/xml-infoset#infoitem.element, which makes
it clear that elements are ordered, attributes unordered. The DOM spec
(which talks about what parsers must do) defers to this document for
such questions:
"The Document Object Model does not define what information in a
document is relevant or how information in a document is structured.
For XML, this is specified by the W3C XML Information Set [Infoset]."
Presumably other XML parsing models (e.g., SAX) are similarly guided by
the Infoset document.
--
Bob Kline
mailto:bkline@rksystems.com
http://www.rksystems.com
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