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> 1) It is an error to specify an external subset when you mention
> standalone="yes" -- I think it is an error which should be reported even
> if it is non-validating parser.
Specifying the external subset is legal, but having the infoset
vary depending on whether or not it's processed would make
the document invalid. "standalone" here just means it doesn't
matter whether the external subset is processed, the same
data will be reported in either case.
At that point the issue is what to do with the "&foo;": is it
a well formedness error, or a validity error? Clearly there
is at least a validity problem, and I'll let someone else check
the XML REC (+errata) to see if WFness is broken there.
> 2) When stand-alone is no, a non-validating parser is not required to read
> external declarations. I believe that it is not supposed to check even
> whether the URI is valid.. I believe a non-validating parser need not
> report an error.
Not so -- see the conformance section of the XML rec, it
allows non-validating parsers which read external entities.
In fact as I noted, such parser modes are typical in Java.
As I said, a SAX parser that tries to read that WILL get
an error, which is of course allowed.
- Dave
> Again, I am *not* sure of the above. If someone can verify, that will be
> great.
>
> thanks and regards - murali.
>
> On Fri, 25 Jan 2002, David Brownell wrote:
>
> > SAX parsers will report some kind of fatal exception,
> > likely an IOException, unless you have one (say, AElfred2)
> > that supports disabling the external-parameter-entities
> > feature (setting the flag value to "false").
> >
> > If the processor isn't handling external PEs then the XML
> > spec says you'll get a report that it skipped those entities.
> > And maybe a validity error, but that bit in the spec is
> > excessively short of crystalline clarity ... :)
> >
> > - Dave
> >
> >
> > ----- Original Message -----
> > From: "Heikki Toivonen" <heikki@netscape.com>
> > To: <xml-dev@lists.xml.org>
> > Sent: Friday, January 25, 2002 10:21 AM
> > Subject: [xml-dev] Non-validating parser, non-existing DTD, undefined entity and error reporting
> >
> >
> > > What should a non-validating XML parser report in the below cases:
> > >
> > > 1)
> > >
> > > <?xml version="1.0" standalone="yes"?>
> > > <!DOCTYPE test SYSTEM "notexist.dtd">
> > > <test>a&foo;b</test>
> > >
> > >
> > > 2)
> > >
> > > <?xml version="1.0" standalone="no"?>
> > > <!DOCTYPE test SYSTEM "notexist.dtd">
> > > <test>a&foo;b</test>
> > >
> > >
> > > Should it report that the notexist.dtd could not be loaded, or that
> > > entity foo is undefined, or totally ignore any errors?
> > >
> > > --
> > > Heikki Toivonen
> > >
> > >
> > >
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