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Re: PSVI

• From: John Cowan <jcowan@r...>
• To: "Henry S. Thompson" <ht@c...>
• Date: Tue, 06 Mar 2001 11:24:30 -0500

Henry S. Thompson wrote:


> [G]iven
> 
> <?xml version='1.0' standalone='yes'?>
> <!DOCTYPE foo [
> <!ATTLIST foo baz CDATA 'banana'>
> ]>
> <foo/>
> 
> some conforming processors will fill in the attribute value and some
> won't.

Not.

As Section 5.1 says:

# While [non-validating processors] are not required to check the
# document for validity, they are required to *process* all the
# declarations they read in the internal DTD subset [...] up
# to the first reference to a parameter entity that they do /not/
# read; that is to say, they must use the information in those
# declarations to [...] supply default attribute values.

The presence of "must" means that processors that don't fill in
the attribute value are not conforming processors.  This is
an important point, since it is a widespread myth that non-validating
processors may ignore the DTD altogether.
-- 
There is / one art             || John Cowan <jcowan@r...>
no more / no less              || http://www.reutershealth.com
to do / all things             || http://www.ccil.org/~cowan
with art- / lessness           \\ -- Piet Hein

• Follow-Ups:
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    • From: ht@c... (Henry S. Thompson)

• References:
  • PSVI
    • From: Tim Bray <tbray@t...>
  • Re: more grist
    • From: Ben Trafford <ben@l...>
  • re: PSVI
    • From: "Simon St.Laurent" <simonstl@s...>
  • Re: PSVI
    • From: ht@c... (Henry S. Thompson)

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