[XML-DEV Mailing List Archive Home] [By Thread] [By Date] [Recent Entries] [Reply To This Message] Re: Errors in Kendall Clark's xml.com article on QNames
Elliotte Rusty Harold <elharo@m...> writes: > At 1:50 PM +0000 2/13/02, Henry S. Thompson wrote: > > > >2) "..there's no way for an XML processor to tell whether QNames are ^^^^^^^^^^^^^^ EMPHASIS ADDED > > used in values." (again, quoting Lenz [2], ellipses in original) > > > >That's simply false -- any sensible use of QNames would involve a W3C > >XML Schema or other type-assigning schema language, which in turn > >would identify all element content and/or attribute values which were > >QNames. This means that using type-aware XPath 2.0 it would be > >trivial to locate all QNames in a document. Note further that any > >sensible API for type-information-bearing infosets will expose the > >_values_ of leaf nodes, which for QNames is defined as being a pair of > >namespace name and local name. > > > > No, that's simply true. Many of us aren't using schema-aware > parsers. Most of us who are still don't have access to the PSVI type > information in our applications. Even if we did, most of the documents > we get in practice wouldn't have schemas. The quote I disagreed with didn't say "I can't" or "my favourite software doesn't", it said "there's no way". All it takes to disprove a universal is to give one counter-example, and I did. I'm sorry your parser isn't schema-aware, but it could be, and then you'd be better off. ht -- Henry S. Thompson, HCRC Language Technology Group, University of Edinburgh W3C Fellow 1999--2001, part-time member of W3C Team 2 Buccleuch Place, Edinburgh EH8 9LW, SCOTLAND -- (44) 131 650-4440 Fax: (44) 131 650-4587, e-mail: ht@c... URL: http://www.ltg.ed.ac.uk/~ht/
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