Re: Validation of complex content
If you don't mind a solution that's tied to one schema processor, Saxon allows you to use the XSD 1.1 xs:assert feature, and to call out to java from the assertions, so you can do arbitrarily complex procedural validation. Michael Kay Saxonica On 30/03/2012 13:35, Edwin Dankert wrote: > Hello, > > I hope you can guide me in the best way to proceed with this validation issue. > > I have a XML structure with most of the nodes representing simple > data, like names, references and numeric values. > > <person> > <name>John<name> > <salary>1000<salary> > </person> > > However some of the numeric nodes can not only represent the data as > simple numeric values, they can also be specified as an expression and > point to other items in the document. > > <person xmlns="x"> > <name>John<name> > <salary>100000/$no-of-employees}<salary> > </person> > > The expression language is quite complex and cannot be represented by > a regular-expression. The syntax is however specified using EBNF and > only the syntax needs to be validated. > > A XML Schema for this exists: > > <schema> > <element name="person"> > <sequence> > <element name="name" type="Name"> > <element name="salary" type="string"> > </sequence> > </element> > <schema> > > The goal is to have a standalone tool which can validate using the > more simple constraints specified by the schema and also validate the > values which contain the expression language. > > My preferred solution would involve validating the expression value > syntax directly from the EBNF using standard XML technologies but > don't believe this is currently an option. > > My questions now is: what would be the best way to validate these > values in your opinion or how was this solved in any of your previous > projects? (Note: The validator tool-set already includes Java, NVDL, > XSLT 2.0, XML Schema 1.0.) > > Any suggestions are very welcome. > > Thanks in advance, > Edwin > > _______________________________________________________________________ > > XML-DEV is a publicly archived, unmoderated list hosted by OASIS > to support XML implementation and development. To minimize > spam in the archives, you must subscribe before posting. > > [Un]Subscribe/change address: http://www.oasis-open.org/mlmanage/ > Or unsubscribe: email@example.com > subscribe: firstname.lastname@example.org > List archive: http://lists.xml.org/archives/xml-dev/ > List Guidelines: http://www.oasis-open.org/maillists/guidelines.php > >
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