Re: Relax-NG schema design question
Hi David, So, what should I make of the statement from the link I've quoted? It says: (http://books.xmlschemata.org/relaxng/ch17s02.html#id2877724) --- List patterns cannot have any of these descendants: list, ref (because after simplification, access to elements is done using references to named patterns), attribute, or text. The interleave pattern is also forbidden as a descendant of list patterns because it would complicate implementations. --- Is this simply a factual error? It sounds to me, as if the validator wouldn't be required to check, what the ref actualy is after simplification. The mere fact, that it _could_ be illegal after simplification, seems to impose the constraint here. The relax-ng spec does also mention 'list//ref' as being explicitly forbidden in 10.2.4 In my current understanding, waiting for simplification before deciding on an error makes sense; but is that just a practice used by some validators, or is this the behaviour defined by the specification? Thanks for your help... ~Lars David Tolpin wrote: > Hi Lars, > > It's a bug in xmllint. The restriction you mention must be applied > after simplification; in the simplified form the values are substituted > into the list, and there are no references. > > The restriction basically means that elements cannot be inside > lists. > > David > > >>Only the fact, that xmllint reported "element ref: Relax-NG parser >>error: Found forbidden pattern list//ref" made us aware of the fact, >>that relax-ng in fact constraints the use of refs in lists. >>(http://books.xmlschemata.org/relaxng/ch17s02.html#id2877724) -- Lars Oppermann <lars.oppermann@s...> Sun Microsystems Software Engineer - StarOffice Sachsenfeld 4 Phone: +49 40 23646 959 D-20097 Hamburg Fax: +49 40 23646 550 http://www.sun.com/staroffice
PURCHASE STYLUS STUDIO ONLINE TODAY!
Purchasing Stylus Studio from our online shop is Easy, Secure and Value Priced!
Download The World's Best XML IDE!
Accelerate XML development with our award-winning XML IDE - Download a free trial today!
Subscribe in XML format