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Re: Principles of XML design

• To: xml-dev@l...
• Subject: Re: Principles of XML design
• From: Joe English <jenglish@f...>
• Date: Thu, 05 May 2005 16:13:44 -0700
• In-reply-to: <1115333449.13308.140.camel@borgia>
• References: <1115333449.13308.140.camel@borgia> <1115325327.13308.98.camel@borgia> <427AA198.90604@o...>

Uche Ogbuji wrote:
> Bob Foster wrote:
> > > The XML 1.0 well-formedness definition specifically states that
> > > attributes are unordered, but says nothing about elements.
> > > This means that technically speaking, a conforming XML parser
> > > might decide to report the child elements of memo in Listing 1
> > > in any order.
> >
> > Good grief!
>
> It's weird, but it's true.  I think Tim Bray has admitted this was an
> omission, but since no sane XML person would tolerate such a libertine
> parser, there's not much consequence to the omission.  (This is
> standardization by threat of techie ostracism, perhaps?)

Not so weird.  As far as I can tell, other than well-formedness
and validity errors the XML Rec places no constraints at all on
what data a processor must report.  That's what the Infoset Rec
is for.

(SGML is the same way -- the Standard only specifies the concrete
syntax of conforming SGML documents; the data returned to the
application -- the abstract syntax -- wasn't specified anywhere
until the ESIS attachment was added.)


--Joe English

  jenglish@f...

• Follow-Ups:
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• References:
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    • From: Uche Ogbuji <uche.ogbuji@f...>
  • Principles of XML design
    • From: Uche Ogbuji <Uche.Ogbuji@f...>
  • Re: Principles of XML design
    • From: Bob Foster <bob@o...>

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