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On Fri, 25 Jan 2002, David Brownell wrote: > > 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. Section 2.9: XML 1.0 -- "Standalone="yes" indicates there are no external markup declarations that affect the information passed from the XML processor to the application" -- Can I ask you once more whether you think specifying an external subset is legal?? -- doesn't an external subset imply that there are external markup declarations?? > > 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. Yes, they may process external entities, but am I right if I say that -- "A non-validating parser *need not* issue an error if the URI pointing to an external entity is invalid"?? -- again this is what I kind of understood from Section 5: Conformance of XML 1.0.. Note: Parameter entities and General entities and their use is one of the things I never clearly understood -- also I believe, in "recommended use" of XML for DB applications, use of both parameter and general entities and entity references might be discouraged??? Any comments?? thanks and regards - murali. > > > > 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 > > > > > > > > > > > > > > > > ----------------------------------------------------------------- > > > > The xml-dev list is sponsored by XML.org <http://www.xml.org>, an > > > > initiative of OASIS <http://www.oasis-open.org> > > > > > > > > The list archives are at http://lists.xml.org/archives/xml-dev/ > > > > > > > > To subscribe or unsubscribe from this list use the subscription > > > > manager: <http://lists.xml.org/ob/adm.pl> > > > > > > > > > > > > > ----------------------------------------------------------------- > > > The xml-dev list is sponsored by XML.org <http://www.xml.org>, an > > > initiative of OASIS <http://www.oasis-open.org> > > > > > > The list archives are at http://lists.xml.org/archives/xml-dev/ > > > > > > To subscribe or unsubscribe from this list use the subscription > > > manager: <http://lists.xml.org/ob/adm.pl> > > > > > >
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